WO2007034684A1 - Communication terminal, data transmitting method, data receiving method, data transmitting program, data receiving program, and recording medium - Google Patents

Communication terminal, data transmitting method, data receiving method, data transmitting program, data receiving program, and recording medium Download PDF

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Publication number
WO2007034684A1
WO2007034684A1 PCT/JP2006/317774 JP2006317774W WO2007034684A1 WO 2007034684 A1 WO2007034684 A1 WO 2007034684A1 JP 2006317774 W JP2006317774 W JP 2006317774W WO 2007034684 A1 WO2007034684 A1 WO 2007034684A1
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WO
WIPO (PCT)
Prior art keywords
communication terminal
video data
transmission request
input
transmission
Prior art date
Application number
PCT/JP2006/317774
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroaki Shibasaki
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2005277791A external-priority patent/JP2007089017A/en
Priority claimed from JP2005295134A external-priority patent/JP2007104568A/en
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2007034684A1 publication Critical patent/WO2007034684A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal

Definitions

  • Communication terminal data transmission method, data reception method, data transmission program, data reception program, and recording medium
  • the present invention relates to a communication terminal, a data transmission method, a data reception method, a data transmission program, a data reception program, and a recording medium used for data transmission / reception between users.
  • the use of the present invention is not limited to the communication terminal, the data transmission method, the data reception method, the data transmission program, the data reception program, and the recording medium described above.
  • Patent Document 1 JP 2001-333451 A
  • a communication terminal is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and the communication terminal
  • a distribution unit that distributes the location information of the current location of the terminal to a communication terminal other than the communication terminal, and a result of the distribution of the location information by the distribution unit, the transmission request signal of the video data relating to the current location is
  • receiving a transmission request signal by the receiving means that receives other communication terminal power and the receiving means acquiring means for acquiring video data relating to the current location, and transmitting the video data acquired by the acquiring means And a transmission means for transmitting the request signal to the communication terminal that has transmitted the request signal.
  • the communication terminal according to the invention of claim 5 is a communication terminal in a communication network composed of a plurality of communication terminals capable of communicating with each other, and is a current point of a communication terminal other than the communication terminal.
  • a first receiving means for receiving the spot information; an output means for outputting the spot information received by the first receiving means; and when the spot information is output by the output means, the other communication terminal An input means for receiving an input of a transmission request for video data relating to the current location, a transmission means for transmitting a transmission request signal for video data relating to the current location when the transmission request is input by the input means, and the transmission
  • a second receiving means for receiving the video data related to the current location as a result of the transmission request signal being transmitted by the means.
  • the communication terminal according to the invention of claim 8 is a communication terminal in a communication network composed of a plurality of communication terminals capable of communicating with each other, and an input unit that receives an imaging input of video data;
  • An acquisition unit configured to acquire the video data together with the point information of the communication terminal during imaging of the video data when the image input is performed by the input unit; and the point information acquired by the acquisition unit
  • a distribution means for distributing to the network, a reception means for receiving the transmission request signal of the video data from the other communication terminal as a result of the distribution of the point information by the distribution means, and a transmission request signal by the reception means. Is received, a transmission means for transmitting the video data to the communication terminal that has transmitted the transmission request signal.
  • the communication terminal according to the invention of claim 9 is a communication terminal in a communication network composed of a plurality of communication terminals capable of communicating with each other, and an input unit that receives an imaging input of video data;
  • the acquisition unit that acquires the video data together with the information about the imaging time of the video data and the information about the imaging time acquired by the acquisition unit are distributed to the other communication terminals.
  • a distribution means that receives the transmission request signal for the video data from the other communication terminal as a result of the distribution of the point information by the distribution means; and a transmission request signal that is received by the reception means.
  • the communication terminal according to the invention of claim 10 is a communication terminal in a communication network including a plurality of communication terminals capable of communicating with each other, and an input unit that receives an imaging input of video data;
  • the acquisition means for acquiring the video data together with the speed information of the communication terminal during the imaging of the video data, and the speed information acquired by the acquisition means A distribution unit that distributes to a communication terminal; a reception unit that receives a transmission request signal of the video data from the other communication terminal as a result of distribution of the speed information by the distribution unit; and a reception unit A transmission unit configured to transmit the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received.
  • the communication terminal according to the invention of claim 11 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and is captured by a communication terminal other than the communication terminal.
  • the imaging point information is output by the first receiving unit that receives the imaging point information of the video data, the output unit that outputs the imaging point information received by the first receiving unit, and the output unit
  • second receiving means for receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted.
  • the communication terminal according to the invention of claim 12 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and is imaged by a communication terminal other than the communication terminal.
  • the imaging time information is output by the first receiving means for receiving the imaging time information of the video data, the output means for outputting the imaging time information received by the first receiving means, and the output means
  • An input means for receiving an input of the transmission request for the video data; a transmission means for transmitting a transmission request signal for the video data when the input request is input by the input means; and And second receiving means for receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted.
  • the communication terminal according to the invention of claim 13 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and speed information of communication terminals other than the communication terminal
  • the first receiving means for receiving the speed information
  • the output means for outputting the speed information received by the first receiving means
  • the speed information is associated with the speed information.
  • Input means for accepting an input of a transmission request for video data
  • a transmission means for transmitting a transmission request signal for the video data when the transmission means is input by the input means
  • the transmission means for transmitting the transmission request signal.
  • a second receiving means for receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted.
  • the data transmission method according to the invention of claim 14 includes a plurality of communication methods that can communicate with each other.
  • a data transmission method that uses a communication terminal in a communication network that is a communication terminal, the distribution step of distributing the current location information of the communication terminal to other communication terminals other than the communication terminal, and the distribution step
  • the reception step of receiving the transmission request signal of the video data related to the current point is received by the other communication terminal, and when the transmission request signal is received by the reception step,
  • the data receiving method according to the invention of claim 15 is a data receiving method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other.
  • a first reception process for receiving the location information of the current location of another communication terminal, an output step for outputting the location information received in the first reception step, and the location information is output by the output step. If there is an input step for receiving a transmission request for video data related to the current location of the other communication terminal, and if the transmission request is input in the input step, a transmission request signal for video data related to the current location
  • the data transmission method according to the invention of claim 16 is a data transmission method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, wherein image data is captured and input.
  • the data receiving method according to the invention of claim 17 is a data receiving method using communication terminals in a communication network having a plurality of communication terminals capable of communicating with each other.
  • an input step for receiving an input of the transmission request for the video data, and when the transmission request is input by the input step, a transmission request signal for the video data is transmitted.
  • a data transmission program according to the invention of claim 18 is characterized by causing a computer to execute the data transmission method according to claim 14 or 16.
  • a data reception program according to the invention of claim 19 causes a computer to execute the data reception method according to claim 15 or 17.
  • a recording medium according to the invention of claim 20 is readable by a computer recording the data transmission program according to claim 18.
  • a recording medium according to the invention of claim 21 is readable by a computer recording the data receiving program according to claim 19.
  • FIG. 1 is a block diagram showing a functional configuration of a data transmission / reception system according to a first embodiment.
  • FIG. 2 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
  • FIG. 3 is a flowchart showing a procedure of data reception processing of the second communication terminal.
  • FIG. 4 is an explanatory diagram showing a system configuration of a data transmission / reception system according to the embodiment.
  • FIG. 5 is a block diagram showing a hardware configuration of the navigation device.
  • FIG. 6 is a flowchart showing a procedure of data transmission processing of a navigation device for a vehicle that transmits data.
  • FIG. 7 is a flowchart showing a procedure of data reception processing of the navigation device for a vehicle that receives data.
  • FIG. 8 is an explanatory view showing an example of a screen display of point information.
  • FIG. 9 is a block diagram of a functional configuration of the data transmission / reception system according to the second embodiment.
  • FIG. 10 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
  • FIG. 11 is a flowchart showing a procedure of data reception processing of the second communication terminal.
  • FIG. 12 is a flowchart showing a procedure of data transmission processing of a navigation device for a vehicle that transmits data.
  • FIG. 13 is a flowchart showing a data reception processing procedure of the navigation device for a vehicle that receives data.
  • FIG. 14 is an explanatory diagram showing an example of a screen display of a video data transmission request notification. Explanation of symbols
  • Second receiver 1100 Data transmission / reception system
  • FIG. 1 is a block diagram of a functional configuration of the data transmission / reception system according to the first embodiment.
  • a data transmission / reception system 100 includes a first communication terminal 110 that transmits video data and a second communication terminal 120 that receives video data.
  • the first communication terminal 110 and the second communication terminal 120 are communication terminals in a communication network having a plurality of communication terminals capable of communicating with each other.
  • the first communication terminal 110 includes a distribution unit 111, a reception unit 112, an acquisition unit 113, a transmission unit 114, and a determination unit 115.
  • Distribution section 111 distributes the location information of the current location of first communication terminal 110 to other communication terminals including second communication terminal 120.
  • the location information of the current location is, for example, latitude and longitude information of the current location of the first communication terminal 110.
  • Distribution Department 11 Specifically, 1 specifies the current position of the first communication terminal 110 based on, for example, a GPS signal received by a GPS receiver.
  • the distribution unit 111 transmits point information or the like using, for example, a broadcast address that transmits information to all communication terminals in the communication network. Further, the distribution unit 111 transmits the point information only to the communication terminal located within the communication area of the specific base station, specifies the communication address of the second communication terminal 120, etc. It is also possible to distribute location information etc. to only a limited number.
  • the reception unit 112 receives a transmission request signal of video data related to the current point from other communication terminals including the second communication terminal 120.
  • the transmission request signal received by the receiving unit 112 may specify whether the length of the video data or video data that reflects the current location is desired for any direction force! /.
  • the acquisition unit 113 acquires video data regarding the current location.
  • the video data includes still images and moving images. If the transmission request signal received by the receiving unit 112 specifies the length of the video data or the direction from which the video data showing the current location is desired, the acquiring unit 113 specifies the specified condition. The video is acquired based on the above.
  • the acquisition of video data may be started, and the acquisition may be started after a predetermined time after the transmission request signal is received. It is good. Further, after the start of the acquisition of the video data, the acquisition may be stopped after a predetermined time has elapsed, or the acquisition may be stopped by an instruction from the user of the first communication terminal 110. Furthermore, the acquisition unit 113 acquires video data based on the determination result of the determination unit 115 when the determination unit 115 described below makes a determination.
  • additional information supplementing the acquired video data may be attached. For example, if it is possible to attach explanations and actual conditions of events reflected in video data using text or audio, the value of information can be improved.
  • Transmitting section 114 transmits the video data acquired by acquiring section 113 to the communication terminal that transmitted the transmission request signal.
  • the transmission unit 114 transmits the transmission request received by the reception unit 112.
  • Signal seeking power The communication address of the second communication terminal 120 is specified, and video data is transmitted.
  • the video data can be sent as a single file of video data taken for a certain period of time, or in real-time streaming. Furthermore, depending on the format of the video data and additional information, plug-ins necessary for use at the transmission destination may be attached and transmitted.
  • Determination unit 115 determines whether or not the video data is acquired based on the elapsed time from distribution by distribution unit 111 and whether or not the transmission request signal is received by reception unit 112. Specifically, the determination unit 115 determines that the video data is not acquired even if the transmission request signal is received after the distribution power of the distribution unit 111 has also exceeded a predetermined time, for example.
  • the second communication terminal 120 includes a first reception unit 121, an output unit 122, an input unit 123, a transmission unit 124, and a second reception unit 125.
  • the first receiving unit 121 receives the location information of the current location of the first communication terminal 110, which is a communication terminal other than the second communication terminal 120.
  • the location information of the current location is, for example, the latitude and longitude information of the current location of the first communication terminal 110.
  • the output unit 122 outputs the spot information received by the first receiving unit 121.
  • the output unit 122 displays, for example, a screen where the point information is drawn on a map, displays the point information in text format on the screen, and outputs the sound.
  • the input unit 123 receives an input of a video data transmission request regarding the current location of the first communication terminal 110, which is another communication terminal. Also, at this time, specify the length of the video data, the video data that reflects the current direction of the video, and the video data transmission method (batch transmission power streaming).
  • input unit 123 accepts a data transmission request made by the user based on the information output by output unit 122, for example. Specifically, the input unit 123 receives an input of a video data transmission request using, for example, an operation button touch panel, an audio input device, or the like.
  • the transmission unit 124 When the transmission unit 124 receives a transmission request from the input unit 123, the transmission unit 124 A transmission request signal is transmitted. For example, the transmitting unit 124 specifies the communication address of the first communication terminal 110 received by the first receiving unit 121 and transmits a transmission request signal.
  • second reception section 125 receives video data relating to the current location from first communication terminal 110, which is another communication terminal.
  • the second receiving unit 125 may receive video data related to the current location when the transmission request signal is transmitted, or may receive video data related to the current location within a predetermined time after transmitting the transmission request signal. May be. That is, video data that reflects the current location immediately after transmission of the transmission request signal may be received, or video data that reflects the current location after a predetermined time has elapsed after transmission of the transmission request signal may be received. .
  • FIG. 2 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
  • first communication terminal 110 first distributes the location information of the current location to other communication terminals including second communication terminal 120 by distribution unit 111 (step S201). ). Then, the receiver 112 waits until it receives a data transmission request signal from another communication terminal including the second communication terminal 120 (step S 202: No loop).
  • the acquisition unit 113 acquires video data relating to the current location (step S203). At this time, if the start time of video data acquisition or the length of the video to be acquired is specified, the video is acquired in accordance with the specification. Further, based on the elapsed time from distribution by the distribution unit 111 and whether or not the transmission request signal is received by the reception unit 112, the determination unit 115 may determine whether or not the video data is acquired. .
  • the transmission unit 114 transmits the video data to the communication terminal that has transmitted the transmission request signal (step S204), and the processing according to this flowchart ends.
  • Video data can be sent as a batch of video data taken for a certain period of time, or in real time. You may also stream it to your website.
  • FIG. 3 is a flowchart showing a procedure of data reception processing of the second communication terminal.
  • the second communication terminal 120 first waits until the first receiving unit 121 receives the point information of the first communication terminal 110 (step S301: No loop). .
  • the output unit 122 outputs the point information received in step S301 (step S302).
  • step S303 it is determined whether or not the input unit 123 has received a video data transmission request from the user (step S303).
  • a video data transmission request is input (step S303: Yes)
  • a video data transmission request signal is transmitted to the first communication terminal 110 (step S304).
  • step S303: No the process returns to step S301 and the subsequent processing is repeated.
  • step S304 When a video data transmission request signal is transmitted to the first communication terminal 110 in step S304, it waits until video data is received by the second receiver 125 (step S305: No loop). When the video data is received (step S305: Yes), the processing by this flowchart is terminated.
  • the second communication terminal 120 can acquire video data related to the current location of the first communication terminal 110 in real time or in the vicinity thereof.
  • the user of the other communication terminal is requested to transmit the video data, that is, the video at the point. It is possible to determine whether or not data is necessary information for the user. As a result, the user of each communication terminal can access the data he / she needs more precisely.
  • the video data acquisition deadline is determined by determining whether or not to acquire the video data. As a result, for example, the surroundings change or the first communication terminal 110 moves, so that video data that is different from the content originally intended for transmission is delivered to other communication terminals. Can be avoided.
  • FIG. 4 is an explanatory diagram showing a system configuration of a data transmission / reception system according to the embodiment.
  • Fig. 4! Turn on road L1, L2 and drive 410, 420 (420a ⁇ 420e) to the road.
  • navigation devices 411 and 421 (421a to 421e) are mounted on vehicles 410 and 420, respectively.
  • the navigation devices 411 and 421 communicate with the roadside devices 430 (430a to 430c) installed on the side of the road on which the vehicles 410 and 420 run, respectively, and send and receive data.
  • the roadside devices 430a to 430c are each connected to a network, and the communication areas are areas A, B, and C indicated by dotted lines in FIG.
  • the vehicles 410 and 420 that have entered the communication areas of the roadside devices 430a to 430c are connected to the network via the roadside devices 430a to 430c to transmit and receive data.
  • the roadside machine 430 is installed so as to cover a point where the vehicles 410, 420 such as a road and a parking lot can enter as a communication area.
  • an ID for identifying the own vehicle is uniquely assigned to each vehicle 410 and 420, for example, as an IP address.
  • This ID is used as a communication address in the data transmission / reception system 400, and the navigation devices 411, 421 can transmit information to a specific vehicle 410, 420 using the ID of the vehicle 410, 420.
  • the IDs of the vehicles 410 and 420 are stored in the navigation devices 411 and 421, respectively.
  • the navigation devices 411 and 421 can transmit information using a "broadcast address" that is a common address of the vehicles 410 and 420 in the communication area of all roadside devices 430. .
  • a broadcast address may be provided for each individual roadside machine 430. For example, when information is distributed using the broadcast address for the roadside machine 430a, the information is distributed to the vehicles 410 and 420 in the area A.
  • Fig. 4 all the vehicles 410 and 420 in the communication area of the roadside machine 430 are used to transmit information using the broadcast address.
  • the present invention is not limited to this. Sending information using the broadcast address including the vehicle.
  • the information may be transmitted using a broadcast address including other vehicles traveling far behind the vehicles 410 and 420.
  • information can be transmitted to unspecified vehicles in a wide range.
  • an area for transmitting information may be designated and transmitted!
  • the area can be designated by designating the roadside machine 430. This designation is naturally possible from a vehicle traveling on another road, and when the vehicle power is designated by, for example, the roadside machine 430c and the information is transmitted, the information is distributed to the vehicles in the area C. Will be.
  • the navigation devices 411 and 421 are each provided with a camera for video shooting.
  • the camera can capture still images and moving images.
  • it can capture video data of still images and videos taken with a digital camera or mobile phone camera.
  • Passengers of vehicles 410 and 420 can transmit video data captured by the cameras of navigation devices 411 and 412 or captured from other devices over the network. it can.
  • the passengers of other vehicles 410 and 420 determine whether or not the transmitted video data is necessary, and then determine whether or not to receive the transmission. For example, near the current position of your vehicle The video data transmitted by the vehicles 410 and 420 or the vehicles 410 and 420 at the point where the vehicle is going to travel or the video data of the field of interest is highly likely to be transmitted.
  • the vehicle that provides (sends) video data will be described as the vehicle 410
  • the vehicle that provides (receives) video data will be described as the vehicle 420.
  • Any of the vehicles 410 and 420 may be the transmission side and the reception side.
  • FIG. 5 is a block diagram showing a hardware configuration of the navigation device.
  • navigation devices 411 and 421 include a CPU 501, a ROM 502, a RAM 503, a magnetic disk drive 504, a magnetic disk 505, an optical disk drive 506, an optical disk 507, an audio IZF (interface) 508, A microphone 509, a speaker 510, an input device 511, a video IZF 512, a display 513, a communication I / F 514, and a GPS Resino 515 are provided.
  • each component 501 to 515 is connected by a bus 520.
  • the CPU 501 governs overall control of the navigation devices 411 and 421.
  • the ROM 502 records programs such as a boot program, a communication program, a database creation program, and a data analysis program.
  • the RAM 503 is used as a work queryer for the CPU 501.
  • the magnetic disk drive 504 controls reading and writing of data with respect to the magnetic disk 505 according to the control of the CPU 501.
  • the magnetic disk 505 records data written under the control of the magnetic disk drive 504.
  • the magnetic disk 505 for example, HD (node disk) or FD (flexible disk) can be used.
  • the optical disk drive 506 controls the reading and writing of data to the optical disk 507 according to the control of the CPU 501.
  • the optical disc 507 is a detachable recording medium from which data is read according to the control of the optical disc drive 506.
  • the optical disk 507 can use a writable recording medium.
  • the removable recording medium may be a power MO of the optical disc 507, a memory card, or the like.
  • the audio IZF 508 includes a microphone 509 for audio input and a speaker 51 for audio output. Connected to 0. Audio received by the microphone 509 is AZD converted in the audio IZF508. Audio is output from the speaker 510. Note that the sound input from the microphone 509 can be recorded on the magnetic disk 505 or the optical disk 507 as sound data.
  • Examples of the input device 511 include a remote controller, a keyboard, a mouse, a touch panel, and the like provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like. Furthermore, the input device 511 can connect other information processing terminals (hereinafter simply referred to as devices) such as a digital camera to input / output data.
  • devices information processing terminals
  • the input device 511 includes a camera capable of shooting still images and moving images (videos). Still images and moving images shot by the camera can be recorded on the magnetic disk 505 or the optical disk 507 as video data. It is also possible to connect other devices such as a digital camera or a mobile phone to the input device 511 and capture video data shot by each device.
  • a camera capable of shooting still images and moving images (videos). Still images and moving images shot by the camera can be recorded on the magnetic disk 505 or the optical disk 507 as video data. It is also possible to connect other devices such as a digital camera or a mobile phone to the input device 511 and capture video data shot by each device.
  • the video IZF 512 is connected to the display 513.
  • the video I / F 512 includes, for example, a graphic controller that controls the entire display 513, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, it is configured by a control IC that controls display of the display 513.
  • VRAM Video RAM
  • Display 513 displays an icon, a cursor, a menu, a window, or various data such as characters and images.
  • this display 513 for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.
  • the communication IZF 514 is connected to a communication network via radio and functions as an interface between the navigation devices 411 and 421 and the CPU 501. Further, the communication IZF 514 is connected to a communication network such as the Internet via wireless and functions as an interface between the communication network and the CPU 501.
  • Communication networks include LANs, WANs, public line networks and mobile phone networks.
  • communication IZF514 is composed of, for example, FM tuner, VICS (Vehicle Information and Communication System) Z beacon Resino, wireless navigation device, and other navigation devices, and traffic congestion that VICS center power is also distributed.
  • Road traffic information such as traffic regulations.
  • VICS is a registered trademark.
  • the GPS receiver 515 acquires information indicating the current position of the vehicles 410 and 420 (the current position of the navigation devices 411 and 421) using output values of GPS (Global Positioning System) and various sensors. To do.
  • the information indicating the current position is information for specifying one point on the map information such as latitude and longitude.
  • FIG. 6 is a flowchart showing a procedure of data transmission processing of the navigation apparatus for a vehicle that transmits data.
  • the navigation apparatus 411 waits until a point information transmission request is input (step S601: No loop). For example, when the passenger of the vehicle 410 wants to convey the current surrounding situation to the surroundings, such as when the vehicle is involved in a traffic jam, a point information transmission request is input.
  • the navigation device 411 distributes the point information to the navigation device 421 of another vehicle 420 using the broadcast address (Ste S602).
  • the location information includes the location information of the current position of the vehicle 410, video data category (for example, video for traffic jams, video for landscapes, etc.), and presence / absence of additional information (for example, voice information and text information for situation explanations) If these contents do not change, only the point information may be transmitted.
  • a transmission time limit may be set for the video data. For example, information that fluctuates over time, such as when you want to convey traffic jam information, has no information value when traffic jams are resolved or the situation changes when the vehicle leaves the traffic jam. For this reason, for example, it may be set so that video data is not taken after a certain period of time has elapsed after transmitting point information.
  • a notification of request for data transmission only in a specific area is used, for example, by using a broadcast address transmitted only to a vehicle 420 in a specific base station rather than a broadcast address transmitted to all vehicles 420. May be delivered.
  • a broadcast address that can specify a group of acquaintances or a group having a terminal that can receive a specific service may be used.
  • the navigation apparatus 411 determines whether or not a video data transmission request signal has been received from the navigation apparatus 421 of another vehicle 420 (step S603).
  • the video data transmission request signal is received (step S603: Yes)
  • video data shooting is started by the camera provided in the navigation device 411 (step S604).
  • step S603 if the video data transmission request signal is not received (step S603: No), the process returns to step S602, and the distribution of the point information is continued. This is because the vehicle 410 often moves, so the current position changes from moment to moment. It should be noted that the transmission of the point information is continued when performing the processing after step S604.
  • the process waits until a predetermined time elapses (step S605: No loop), and when the predetermined time elapses (step S605: Yes), the photographing is finished (step S606).
  • the predetermined time is a shooting time set by a passenger of the vehicle 410 or a shooting time specified by a transmission applicant included in the video data transmission request signal. If necessary, additional information is attached to the acquired video data.
  • the video data is transmitted to the navigation device 421 of the vehicle 420 that has transmitted the video data transmission request signal (step S607), and the processing according to this flowchart ends.
  • streaming transmission may be performed in which captured video data is immediately transmitted.
  • the received video data transmission request signal is further narrowed down to a specific region or direction. However, if there is a request for data, the data may be transmitted to the corresponding area. If there is a plug-in necessary for using the data, it is sent together with the data.
  • FIG. 7 is a flowchart showing a procedure of data reception processing of the vehicle navigation apparatus that receives data.
  • the navigation device 421 first waits until it receives point information from the navigation device 411 of the vehicle 410 (step S701: No loop).
  • the received location information is output by screen display by the display 513, audio output from the speaker 510, or the like (step S702).
  • the point information includes information about the category of data and the presence / absence of additional information.
  • the navigation device 421 outputs these pieces of information and waits for a determination as to whether or not the passenger of the vehicle 420 is capable of receiving data. That is, it is determined whether or not a video data transmission request for requesting transmission of video data to the vehicle 410 has been input (step S703).
  • step S703 When it is determined that the passenger receives video data and a video data transmission request for transmission of video data is input (step S703: Yes), the navigation device 421 sends a video to the navigation device 411. A data transmission request signal is returned (step S704). At this time, the address of the navigation device 411 as a reply destination is specified using the transmission source address of the point information received in step S701. In addition, if you want video data for a specific area or direction, you can send the district name and direction.
  • step S705 No loop
  • step S705 Yes
  • step S703 No
  • FIG. 8 is an explanatory diagram showing an example of a screen display of point information.
  • a new message 801 of point information is displayed on the display 513 of the navigation device 421.
  • the sender information 811, the location information 812, the category information 813, the reception date and time information 814, the access time limit information 815, and the presence / absence information 816 of the additional information are displayed according to the new arrival point information.
  • the sender information 811, the location information 812, the category information 813, the reception date and time information 814, the access time limit information 815, and the presence / absence information 816 of the additional information are displayed according to the new arrival point information.
  • Sender information 811 is information for specifying a transmission source of point information such as IDs of vehicles 410 and 420, for example.
  • the position information 812 indicates the current position of the point information transmission source.
  • Category 1 information 813 indicates what category the content of the transmitted video data belongs to.
  • the reception date / time information 814 indicates the date / time when the point information is received.
  • the access time limit information 815 indicates the transmission time limit of the video data set by the point information sender.
  • Presence / absence of additional information Information 816 indicates the presence / absence of additional information regarding video data.
  • a received point information list 821 that is a list of already received point information is displayed.
  • the sender information 831, location information 832, category information 833, reception date and time information 834, access time limit information 835, and additional information presence / absence information 836 are displayed in the received point information list 821. .
  • the user determines whether or not to make a transmission request for video data to the point information transmission source.
  • the point information is selected and a video data transmission request signal is returned (see step S704 in FIG. 7).
  • the data list is displayed in order from the newest reception date and time !, but the data can be sorted or selected according to the respective information.
  • data can be narrowed down by inputting a keyword in the search input box 841 or selecting a genre of data from the genre selection box 842. Note that the data for which the access time limit has passed is deleted from the received point information list 821.
  • a change in the current position of the vehicle 410 that transmitted the point information may be displayed as a point or an icon.
  • the current location information is periodically received from the sender and received until the access deadline. Move points and icons on the map based on the information. As a result, it is possible to more accurately grasp which point the video data transmitted from the point information transmission source is.
  • the navigation device 411 receives the video data related to the current position of the vehicle 410 based on the video data transmission request from the navigation device 421. Take a picture and send it to the navigation device 421. From this, the passenger of the vehicle 420 can acquire the video regarding the current location of the vehicle 410 in real time or in the form of it.
  • FIG. 9 is a block diagram of a functional configuration of the data transmission / reception system according to the second embodiment.
  • a data transmission / reception system 1100 includes a first communication terminal 1110 that transmits video data and a second communication terminal 1120 that receives video data.
  • the first communication terminal 1110 and the second communication terminal 1120 are communication terminals in a communication network having a plurality of communication terminals capable of communicating with each other.
  • the first communication terminal 1110 includes an input unit 1111, an acquisition unit 1112, a distribution unit 1113, a reception unit 1114, and a transmission unit 1115.
  • the input unit 1111 accepts imaging input of video data.
  • the imaging input is an input of information instructing video shooting.
  • the input unit 1111 accepts an input from an operation button provided on the first communication terminal 1110, a voice input, or the like.
  • the acquisition unit 1112 acquires the video data together with the point information of the first communication terminal 1110 during the imaging of the video data (hereinafter referred to as imaging point information) when the input unit 1111 captures and inputs the video data.
  • the imaging point information of the first communication terminal 1110 is information that identifies the current position of the first communication terminal 1110 at each time. For example, latitude and longitude information at each time of the first communication terminal 1110 It is.
  • Video data includes still images and moving images.
  • the acquisition unit 1112 captures video data with a camera provided in the first communication terminal 1110, and adds and stores imaging point information.
  • Distribution unit 1113 distributes the imaging point information acquired by acquisition unit 1112 to other communication terminals including second communication terminal 1120. Specifically, the distribution unit 1113 transmits the imaging point information using, for example, a broadcast address that transmits information to all communication terminals in the communication network. In addition, the distribution unit 1113 transmits the imaging point information only to the communication terminals located within the communication area of the specific base station, or specifies the communication address of the second communication terminal 1120 individually, for example. It is also possible to distribute imaging point information to only a limited number of communication terminals.
  • reception unit 1114 receives a transmission request signal for video data from other communication terminals including second communication terminal 1120.
  • the transmission request signal received by the receiving unit 1114 may include information for specifying the length of the video data and the further narrowed shooting point.
  • the transmission unit 1115 transmits the video data to the communication terminal that has transmitted the transmission request signal.
  • the transmission request signal received by the receiving unit 1114 includes information specifying the length of the video data or the shooting location, the video data shot by the acquiring unit 1112 is cut out and transmitted.
  • Transmitting section 1115 specifies the communication address of second communication terminal 1120 from the transmission request signal received by receiving section 1114, for example, and transmits video data.
  • the video data may be transmitted as a single file of video data for a certain period of time, or may be streamed while maintaining the connection for a certain period. Furthermore, depending on the format of the video data and additional information, you may attach the plug-in required for use at the destination.
  • the second communication terminal 1 120 includes a first reception unit 1121, an output unit 1122, an input unit 1123, a transmission unit 1124, and a second reception unit 1125.
  • First receiving section 1121 receives imaging point information of video data captured by another communication terminal other than second communication terminal 1120 (for example, first communication terminal 1110).
  • the imaging point information is information for specifying the current position of another communication terminal at the time when the video data is captured, and is, for example, latitude / longitude information at each time.
  • the output unit 1122 outputs imaging point information received by the first receiving unit 1121.
  • the output unit 1122 displays, for example, a drawing of imaging point information on a map, displays the imaging point information in text format on the screen, and outputs sound.
  • the input unit 1123 receives an input of a video data transmission request. At this time, the length of the video data and the shooting point may be further narrowed down and specified. You can also specify the video data transmission method (batch transmission or streaming transmission power).
  • input unit 1123 accepts a transmission request for data input by the user based on the information output by output unit 1122, for example. Specifically, the input unit 1123 receives an input of a video data transmission request using, for example, an operation button touch panel, an audio input device, or the like.
  • the transmission unit 1124 transmits a transmission request signal for video data.
  • the transmission unit 1124 specifies the communication address of the first communication terminal 1110 for the transmission source address of the imaging point information received by the first reception unit 1121 and transmits a transmission request signal.
  • the second reception unit 1125 receives the transmission request signal from the transmission unit 1124, and others Communication terminal power Receive video data.
  • the acquisition unit 1112 of the first communication terminal 1110 acquires imaging point information that is point information of the first communication terminal 1110 during imaging of the video data.
  • information regarding the imaging time of video data (the time when video data was captured) and speed information of the first communication terminal 1110 during imaging of video data (for example, the power of stopping, It is also possible to acquire whether the vehicle is moving at a speed higher than a predetermined speed.
  • distribution section 1113 transmits each piece of information acquired by acquisition section 1112 (information relating to shooting time, speed information) to another communication device.
  • the second communication terminal 1120 receives each piece of information by the first receiving unit 1121 and outputs it by the output unit 1122.
  • each information may be acquired and distributed simultaneously as a plurality of types of information such as imaging point information and imaging time information.
  • FIG. 10 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
  • first communication terminal 1110 first stands by until input unit 1111 accepts an imaging input of video data (step S 1201: No loop).
  • the acquisition unit 111 2 acquires the video data and imaging point information (step S1202).
  • the distribution unit 1113 distributes the imaging point information to other communication terminals that can communicate with each other (step S1203). Then, it waits until a transmission request signal is received from another communication terminal (for example, second communication terminal 11 20) (step S 1204: No loop) and receives the transmission request signal (step S 1204: (Yes), the video data acquired in step SI 202 is transmitted (step S1205), and the processing according to this flowchart ends. Video data can be sent in batches of video data for a certain time as a file! You can send streaming data while maintaining the connection for a certain time. Next, processing performed by the second communication terminal 1120 will be described.
  • FIG. 11 is a flowchart showing a procedure of data reception processing of the second communication terminal. In the flowchart of FIG. 11, the second communication terminal 1120 first receives imaging point information from other communication terminals (for example, the first communication terminal 1110) that can communicate with each other by the first receiving unit 1121. Wait until it is received (step S1301: No loop).
  • step S1301: Yes When the imaging point information is received (step S1301: Yes), the output unit 1122 outputs the imaging point information (step S1302). Then, it is determined whether or not the video data transmission request has been received by the input unit 1123 (step S1303). When the transmission request is accepted (step S1303: Yes), the transmission unit 1124 transmits a video data transmission request signal to another communication terminal that has transmitted the imaging point information (step S1304).
  • step S 1305 No loop
  • step S1305: Yes the process according to this flowchart is terminated.
  • step S1303: No the process returns to step S1301, and the reception of the imaging point information is continued.
  • the video data acquired by the first communication terminal 1110 in the communication network having a plurality of communication terminals capable of communicating with each other. Is transmitted to other communication terminals including the second communication terminal 1120. Accordingly, the second communication terminal 1120 determines whether the video data acquired by the first communication terminal 1110 is necessary with reference to the imaging point information, and requests transmission if necessary. be able to.
  • the first communication terminal 1110 may be determined whether the first communication terminal 1110 is ready to transmit video data. Good. As a result, it is possible to avoid distributing data whose information value fades with time to other communication terminals.
  • first communication terminal 1110 acquires the video data.
  • the video data may be transmitted to the second communication terminal 1120 via the communication server.
  • first communication terminal 1110 transmits the acquired video data and imaging point information to the communication server.
  • the communication server stores the transmitted video data and transmits imaging point information to a communication terminal other than the first communication terminal 1110.
  • the other communication terminal to which the imaging point information has been transmitted transmits a video data transmission request signal to the communication server, and the communication server transmits the video data to the communication terminal that has transmitted the transmission request signal.
  • the communication volume and transmission / reception status of data can be centrally managed by the communication server.
  • direct data transmission and reception are not performed, it is possible to protect personal information in which the communication addresses of the first communication terminal 1110 and the second communication terminal 1120 are not known to each other.
  • FIG. 12 is a flowchart showing a procedure of data transmission processing of the navigation device for a vehicle that transmits data.
  • the navigation apparatus 411 waits until an image data shooting start instruction is input via the input device 511 (step S 1601: No loop).
  • step S160 1: Yes the navigation device 411 uses the camera provided on its own device to monitor the surroundings. Take an image (step S1602).
  • step S1603 While the navigation apparatus 411 does not input a shooting end instruction (step S1603:
  • step S1602 go back to step S1602 and continue shooting around.
  • images may be taken at regular intervals or at regular intervals.
  • audio information and text information hereinafter referred to as additional information for commentary on video data may be added.
  • step S1604 when an instruction to end shooting is input (step S1603: Yes), shooting is ended, video information is saved with detailed information attached (step S1604).
  • the detailed information added in step S1604 is, for example, the current location of the navigation device 411 at the time of video data shooting (that is, the video data shooting location), the time (time) when the video data was shot, This includes the presence or absence of video data categories (for example, video related to traffic jams, video related to landscapes), video data titles, and additional information (such as audio information and text information for situational commentary).
  • the detailed information may be added with speed information such as the force at which the vehicle 410 is stopped at the time of shooting and whether the vehicle is traveling at high speed.
  • speed information such as the force at which the vehicle 410 is stopped at the time of shooting and whether the vehicle is traveling at high speed.
  • an image captured by the stationary vehicle 410 as a fixed point observation, an image of the vehicle 410 traveling at a high speed on a desired route, an image of the vehicle 410 traveling at a low speed in a traffic jam, and the like are selected. be able to.
  • the vehicle 410 may move even if a photographing start instruction is subsequently input, and the object to be photographed may be missed. is there.
  • the surrounding image may be buffered for a certain period of time regardless of the shooting instruction.
  • the input operation is used to cut out a video that captures what you want to shoot, add the corresponding detailed information, and save it.
  • the navigation device 411 determines whether or not the transmission request for the stored video data has been input via the input device 511 (step S1605). If a transmission request is input (step S1605: Yes), a video data transmission request notification is delivered to the navigation device 421 of another vehicle 420 using the broadcast address (step S1606). On the other hand, if the video data transmission request is not input (step S1605: No), the process returns to step S1601 and waits for an instruction to start video recording. [0137]
  • the video data transmission request notification distributed in step SI 606 includes detailed information about the video data desired to be transmitted.
  • the detailed information includes the shooting location of the video data, the time (time) when the video data was shot, the video data category, the video data title, and the presence / absence of additional information.
  • transmission may be omitted.
  • the shooting point information of the video data in the detailed information is information on the route of the section where the video was shot.
  • the shooting time information is time zone information for shooting the video.
  • all the position information of the travel route of the vehicle 410 may be transmitted.
  • the other navigation device 421 can grasp the section where the video data exists after displaying all the travel routes of the vehicle 410.
  • a transmission time limit may be set for data. For example, information that fluctuates over time, such as traffic jam information, has no information value even if information that is too old is transmitted. For this reason, for example, after sending a video data transmission request notification, set to send data after a certain period of time! /.
  • video data when video data is desired to be transmitted without any particular time limit, it may be set to "permanent transmission".
  • a camera may be installed on a feature near a road such as a traffic light that is not only a moving body such as the vehicles 410 and 420. Also in this case, if “permanent transmission” is set without setting an access time limit, the user can always obtain video data at a fixed location.
  • step S 1606 When the video data transmission request notification is delivered in step S 1606, navigation device 411 waits until a video data transmission request signal is received from navigation device 421 of other vehicle 420 (step S 1607: No). Loop). And the video data transmission request signal Is received (step S 1607: Yes), the video data is transmitted to the navigation device 421 of the vehicle 420 that transmitted the video data transmission request signal (step S 1608), and the processing according to this flowchart is performed. finish.
  • FIG. 13 is a flowchart showing the procedure of the data reception process of the vehicle navigation device that receives data.
  • the navigation device 421 first waits until receiving a video data transmission request notification from the navigation device 411 of the vehicle 410 (step S 1701: No loop).
  • the received notification is output by screen display by the display 513, audio output from the speaker 510, or the like (step S1702).
  • the video data transmission request notification includes detailed information about the video data.
  • the navigation device 421 outputs the received information and waits for the user to determine whether to receive data. That is, it is determined whether or not a video data transmission request for transmission of video data has been input (step S 1703).
  • step S1703 When it is determined that the user receives video data and a video data transmission request for transmission of video data is input (step S1703: Yes), the navigation device 421 sends a video to the navigation device 411. A data transmission request signal is returned (step S1704). At this time, the transmission format and length of the video data may be specified. As the communication address of the navigation device 411, the transmission source address of the video data transmission request notification received in step S1701 is used.
  • FIG. 14 is an explanatory diagram showing an example of a screen display of a video data transmission request notification.
  • a new message 1801 of a video data transmission request notification is displayed on the display 513 of the navigation device 421.
  • the new message 1801 includes the sender information 1811, the location information 1812, the category information 1813, the reception date and time information 1814, the access time limit information 1815, and the presence / absence information of the additional information for which the video data transmission request notification has been newly made. 1816 is displayed.
  • the sender information 1811 is information that identifies the transmission source of the video data, such as the IDs of the vehicles 410 and 420, for example.
  • the position information 1812 indicates the position where the transmitted video data is acquired.
  • Category information 1813 indicates what category the content of the information belongs to.
  • Reception date / time information 1814 indicates the date / time when the video data transmission request notification is received.
  • Access period information 1815 indicates the transmission period of the video data set by the sender.
  • Presence / absence of additional information Information 1816 indicates the presence / absence of additional information regarding video data. This information is included in the video data transmission request notification.
  • a receivable data list 1821 which is a list of video data transmission request notifications already received is displayed.
  • Receivable data list 1821 displays sender information 1831, location information 1832, category information 1833, reception date and time information 1834, access time limit information 1835, and presence / absence information 1836 as well as new message 1 801. Is done.
  • the data list is displayed in order from the newest reception date and time !, but the data can be sorted or selected according to the respective information.
  • data can be narrowed down by entering a keyword in the search input button 1841 or selecting a data genre from the genre selection box 1842. Data for which the access time limit has passed is deleted from the receivable data list 1821.
  • the vehicle that transmitted the video data transmission request notification 41 When displaying the location information on the map, the vehicle that transmitted the video data transmission request notification 41 The point information of the video data of 0, that is, the icon is displayed at the point where the video data was shot. Also, if the number of video data captured is large, or if the location where the video data was captured has a certain section (that is, when shooting while moving), the route on the map will be filled (the road It is good also as painting. This makes it possible to more accurately grasp the location of the video data to be transmitted.
  • the current position acquired by the vehicle 410 is related.
  • Data is transmitted to other communication terminals including other vehicles 420.
  • the video data transmission request notification the video data acquisition location and the acquisition date and time, etc. are transmitted, so that it is more accurately determined whether or not to request transmission of video data to other vehicle 420 passengers. Judgment can be made.
  • an arbitrary place can be selected from the travel route of the vehicle 410, and video data of a portion desired by the passenger of the vehicle 420 is selected and transmitted. Therefore, it is possible to increase the possibility that the video data required by the passenger of the vehicle 420 exists as compared with the case where the video of only the current position of the vehicle 410 is transmitted.
  • video data is transmitted and received between the vehicles 410 and 420.
  • a server for video data transmission / reception may be installed on the network to centrally manage the data.
  • the video data that the passenger of vehicle 410 wants to send is uploaded to the server.
  • the server sends a video data transmission request notification to the other vehicle 420.
  • the passenger of the other vehicle 420 having received the video data transmission request notification accesses the server every time the video data is used or periodically downloads the necessary video data.
  • a data transmission request may be made to the server.
  • the communication amount and transmission / reception status of the video data can be centrally managed by the server.
  • the data since the data is not directly transmitted and received, it is possible to protect personal information where the communication addresses of the vehicles 410 and 420 cannot be known to each other.
  • the data transmission method and data reception method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation.
  • This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, or a DVD, and is executed by being read by the computer.
  • the program may be a transmission medium that can be distributed through a network such as the Internet.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

First and second communication apparatuses (110,120) are communication terminals in a communication network comprising a plurality of communication terminals that can communicate with each other. The first communication apparatus (110) comprises a delivering part (111), a receiving part (112), an acquiring part (113), a transmitting part (114) and a determining part (115). The delivering part (111) delivers locating information, which is related to the current location of the first communication terminal (110), to the second communication terminal (120). As a result from delivering the locating information, the receiving part (112) receives, from the second communication terminal (120), a transmission request signal that requests the transmission of a video data related to the current location. When the transmission request signal is received, the acquiring part (113) acquires the video data related to the current location. The transmitting part (114) transmits the acquired video data to the second communication terminal (120) having transmitted the transmission request signal.

Description

明 細 書  Specification
通信端末、データ送信方法、データ受信方法、データ送信プログラム、デ ータ受信プログラムおよび記録媒体  Communication terminal, data transmission method, data reception method, data transmission program, data reception program, and recording medium
技術分野  Technical field
[0001] 本発明は、ユーザ間でのデータの送受信に用いる通信端末、データ送信方法、デ ータ受信方法、データ送信プログラム、データ受信プログラムおよび記録媒体に関す る。ただし、本発明の利用は、上述した通信端末、データ送信方法、データ受信方法 、データ送信プログラム、データ受信プログラムおよび記録媒体に限られない。  The present invention relates to a communication terminal, a data transmission method, a data reception method, a data transmission program, a data reception program, and a recording medium used for data transmission / reception between users. However, the use of the present invention is not limited to the communication terminal, the data transmission method, the data reception method, the data transmission program, the data reception program, and the recording medium described above.
背景技術  Background art
[0002] 従来、ネットワークインフラの整備や、情報通信端末の普及などによって、個人のュ 一ザ間で、ネットワークを介したデータ (情報)の授受がおこなわれ、同じ情報を共有 するコミュニティが形成されて 、る。  [0002] Conventionally, due to the development of network infrastructure and the spread of information and communication terminals, data (information) has been exchanged between individual users via the network, and a community sharing the same information has been formed. And
[0003] このようなコミュニティでは、たとえば、近距離無線通信範囲内の携帯端末より発信 される信号を、他の携帯端末が近距離無線通信部によって受信し、必要なデータの 交換をおこなう。受信されたデータは表示器に表示されるとともに、次フェーズへの移 行が促される。つぎに、広域網上のサーバへ広域無線通信部によって接続がおこな われ、相手の身元を確認するとともに、次フェーズへの移行が促される。この時点で 個人詳細データが端末と端末との間で交換される（たとえば、下記特許文献 1参照。  [0003] In such a community, for example, other mobile terminals receive signals transmitted from mobile terminals within the short-range wireless communication range by the short-range wireless communication unit, and exchange necessary data. The received data is displayed on the display and prompts you to move to the next phase. Next, a connection is made to a server on the wide area network by the wide area wireless communication unit, confirming the identity of the other party and prompting the transition to the next phase. At this point, personal detail data is exchanged between the terminals (see, for example, Patent Document 1 below).
) o  ) o
[0004] 特許文献 1 :特開 2001— 333451号公報  [0004] Patent Document 1: JP 2001-333451 A
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] し力しながら、上述した従来技術によれば、通信相手が保持する情報が、自己が必 要とする情報である力否かを知ることができないという問題点が一例として挙げられる 。特に、通信可能な相手の数が多い場合には、どの通信相手力 情報を取得するか を効率的に判断する必要があるという問題点が一例として挙げられる。  [0005] However, according to the above-described conventional technology, there is a problem that it is impossible to know whether the information held by the communication partner is the information that the self needs. In particular, when there are a large number of communicable parties, an example is the problem that it is necessary to efficiently determine which communication partner power information is to be acquired.
[0006] また、通信相手の現在位置はある程度特定できるとしても、通信相手が保持する情 報が、その場所に関するものであるとは限らないという問題点が一例として挙げられ る。特に、移動可能な通信端末を用いた通信においては、その情報がどの場所に関 するものであるかが、情報を取得する力否かを判断する重要な要素となるという問題 点が一例として挙げられる。 [0006] Even if the current position of the communication partner can be specified to some extent, the information held by the communication partner is retained. An example is the problem that information is not necessarily about the place. In particular, in communications using mobile communication terminals, the problem is that the location of the information is an important factor in determining whether or not it is capable of acquiring information. It is done.
[0007] さらに、通信相手が保持する情報が、生成された時間（時刻）を知ることができない という問題点が一例として挙げられる。特に、時々刻々と変化する情報に関しては、 生成されてから時間が経過してしまった情報には情報価値がなぐその情報がいつ 生成されたものであるかが、情報を取得する力否かを判断する重要な要素となるとい う問題点が一例として挙げられる。  [0007] Further, as an example, there is a problem that information held by the communication partner cannot know the time (time) when it was generated. In particular, for information that changes from moment to moment, information that does not have the information value of the information that has passed since it was created, and when it was created, whether it was the ability to acquire information. An example is the problem of being an important factor in judging.
課題を解決するための手段  Means for solving the problem
[0008] 上述した課題を解決し、目的を達成するため、請求項 1の発明にかかる通信端末 は、相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であ つて、前記通信端末の現在地点の地点情報を前記通信端末以外の他の通信端末 に配信する配信手段と、前記配信手段によって前記地点情報が配信された結果、前 記現在地点に関する映像データの送信要求信号を前記他の通信端末力 受信する 受信手段と、前記受信手段によって送信要求信号が受信された場合、前記現在地 点に関する映像データを取得する取得手段と、前記取得手段によって取得された映 像データを前記送信要求信号を送信した通信端末に送信する送信手段と、を備える ことを特徴とする。 [0008] In order to solve the above-described problems and achieve the object, a communication terminal according to the invention of claim 1 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and the communication terminal A distribution unit that distributes the location information of the current location of the terminal to a communication terminal other than the communication terminal, and a result of the distribution of the location information by the distribution unit, the transmission request signal of the video data relating to the current location is When receiving a transmission request signal by the receiving means that receives other communication terminal power and the receiving means, acquiring means for acquiring video data relating to the current location, and transmitting the video data acquired by the acquiring means And a transmission means for transmitting the request signal to the communication terminal that has transmitted the request signal.
[0009] また、請求項 5の発明にかかる通信端末は、相互に通信可能な複数の通信端末か らなる通信ネットワーク内の通信端末であって、前記通信端末以外の他の通信端末 の現在地点の地点情報を受信する第 1の受信手段と、前記第 1の受信手段によって 受信された地点情報を出力する出力手段と、前記出力手段によって前記地点情報 が出力された場合、前記他の通信端末の現在地点に関する映像データの送信要求 の入力を受け付ける入力手段と、前記入力手段によって前記送信要求の入力があつ た場合、前記現在地点に関する映像データの送信要求信号を送信する送信手段と 、前記送信手段によって前記送信要求信号が送信された結果、前記他の通信端末 力 前記現在地点に関する映像データを受信する第 2の受信手段と、を備えることを 特徴とする。 [0009] The communication terminal according to the invention of claim 5 is a communication terminal in a communication network composed of a plurality of communication terminals capable of communicating with each other, and is a current point of a communication terminal other than the communication terminal. A first receiving means for receiving the spot information; an output means for outputting the spot information received by the first receiving means; and when the spot information is output by the output means, the other communication terminal An input means for receiving an input of a transmission request for video data relating to the current location, a transmission means for transmitting a transmission request signal for video data relating to the current location when the transmission request is input by the input means, and the transmission A second receiving means for receiving the video data related to the current location as a result of the transmission request signal being transmitted by the means. Features.
[0010] また、請求項 8の発明にかかる通信端末は、相互に通信可能な複数の通信端末か らなる通信ネットワーク内の通信端末であって、映像データの撮像入力を受け付ける 入力手段と、前記入力手段によって撮像入力された場合、前記映像データを、当該 映像データの撮像中における前記通信端末の地点情報とともに取得する取得手段と 、前記取得手段によって取得された地点情報を、前記他の通信端末に配信する配 信手段と、前記配信手段によって前記地点情報が配信された結果、前記映像データ の送信要求信号を、前記他の通信端末から受信する受信手段と、前記受信手段に よって送信要求信号が受信された場合、前記送信要求信号を送信した通信端末に 前記映像データを送信する送信手段と、を備えることを特徴とする。  [0010] Further, the communication terminal according to the invention of claim 8 is a communication terminal in a communication network composed of a plurality of communication terminals capable of communicating with each other, and an input unit that receives an imaging input of video data; An acquisition unit configured to acquire the video data together with the point information of the communication terminal during imaging of the video data when the image input is performed by the input unit; and the point information acquired by the acquisition unit A distribution means for distributing to the network, a reception means for receiving the transmission request signal of the video data from the other communication terminal as a result of the distribution of the point information by the distribution means, and a transmission request signal by the reception means. Is received, a transmission means for transmitting the video data to the communication terminal that has transmitted the transmission request signal.
[0011] また、請求項 9の発明にかかる通信端末は、相互に通信可能な複数の通信端末か らなる通信ネットワーク内の通信端末であって、映像データの撮像入力を受け付ける 入力手段と、前記入力手段によって撮像入力された場合、前記映像データを、当該 映像データの撮像時間に関する情報とともに取得する取得手段と、前記取得手段に よって取得された撮像時間に関する情報を、前記他の通信端末に配信する配信手 段と、前記配信手段によって前記地点情報が配信された結果、前記映像データの送 信要求信号を、前記他の通信端末から受信する受信手段と、前記受信手段によって 送信要求信号が受信された場合、前記送信要求信号を送信した通信端末に前記映 像データを送信する送信手段と、を備えることを特徴とする。  [0011] Further, the communication terminal according to the invention of claim 9 is a communication terminal in a communication network composed of a plurality of communication terminals capable of communicating with each other, and an input unit that receives an imaging input of video data; When the image is input by the input unit, the acquisition unit that acquires the video data together with the information about the imaging time of the video data and the information about the imaging time acquired by the acquisition unit are distributed to the other communication terminals. A distribution means that receives the transmission request signal for the video data from the other communication terminal as a result of the distribution of the point information by the distribution means; and a transmission request signal that is received by the reception means. A transmission means for transmitting the video data to the communication terminal that has transmitted the transmission request signal.
[0012] また、請求項 10の発明にかかる通信端末は、相互に通信可能な複数の通信端末 力 なる通信ネットワーク内の通信端末であって、映像データの撮像入力を受け付け る入力手段と、前記入力手段によって撮像入力された場合、前記映像データを、当 該映像データの撮像中における前記通信端末の速度情報とともに取得する取得手 段と、前記取得手段によって取得された速度情報を、前記他の通信端末に配信する 配信手段と、前記配信手段によって前記速度情報が配信された結果、前記映像デ ータの送信要求信号を、前記他の通信端末から受信する受信手段と、前記受信手 段によって送信要求信号が受信された場合、前記送信要求信号を送信した通信端 末に前記映像データを送信する送信手段と、を備えることを特徴とする。 [0013] また、請求項 11の発明にかかる通信端末は、相互に通信可能な複数の通信端末 力 なる通信ネットワーク内の通信端末であって、前記通信端末以外の他の通信端 末により撮像された映像データの撮像地点情報を受信する第 1の受信手段と、前記 第 1の受信手段によって受信された撮像地点情報を出力する出力手段と、前記出力 手段によって前記撮像地点情報が出力された場合、前記映像データの送信要求の 入力を受け付ける入力手段と、前記入力手段によって前記送信要求の入力があった 場合、前記映像データの送信要求信号を送信する送信手段と、前記送信手段によ つて前記送信要求信号が送信された結果、前記他の通信端末から前記映像データ を受信する第 2の受信手段と、を備えることを特徴とする。 [0012] Further, the communication terminal according to the invention of claim 10 is a communication terminal in a communication network including a plurality of communication terminals capable of communicating with each other, and an input unit that receives an imaging input of video data; When the image is input by the input means, the acquisition means for acquiring the video data together with the speed information of the communication terminal during the imaging of the video data, and the speed information acquired by the acquisition means A distribution unit that distributes to a communication terminal; a reception unit that receives a transmission request signal of the video data from the other communication terminal as a result of distribution of the speed information by the distribution unit; and a reception unit A transmission unit configured to transmit the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received. [0013] The communication terminal according to the invention of claim 11 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and is captured by a communication terminal other than the communication terminal. When the imaging point information is output by the first receiving unit that receives the imaging point information of the video data, the output unit that outputs the imaging point information received by the first receiving unit, and the output unit An input means for receiving an input of the transmission request for the video data; a transmission means for transmitting a transmission request signal for the video data when the input request is input by the input means; and And second receiving means for receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted.
[0014] また、請求項 12の発明にかかる通信端末は、相互に通信可能な複数の通信端末 力 なる通信ネットワーク内の通信端末であって、前記通信端末以外の他の通信端 末により撮像された映像データの撮像時間情報を受信する第 1の受信手段と、前記 第 1の受信手段によって受信された撮像時間情報を出力する出力手段と、前記出力 手段によって前記撮像時間情報が出力された場合、前記映像データの送信要求の 入力を受け付ける入力手段と、前記入力手段によって前記送信要求の入力があった 場合、前記映像データの送信要求信号を送信する送信手段と、前記送信手段によ つて前記送信要求信号が送信された結果、前記他の通信端末から前記映像データ を受信する第 2の受信手段と、を備えることを特徴とする。  [0014] The communication terminal according to the invention of claim 12 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and is imaged by a communication terminal other than the communication terminal. When the imaging time information is output by the first receiving means for receiving the imaging time information of the video data, the output means for outputting the imaging time information received by the first receiving means, and the output means An input means for receiving an input of the transmission request for the video data; a transmission means for transmitting a transmission request signal for the video data when the input request is input by the input means; and And second receiving means for receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted.
[0015] また、請求項 13の発明にかかる通信端末は、相互に通信可能な複数の通信端末 力 なる通信ネットワーク内の通信端末であって、前記通信端末以外の他の通信端 末の速度情報を受信する第 1の受信手段と、前記第 1の受信手段によって受信され た速度情報を出力する出力手段と、前記出力手段によって前記速度情報が出力さ れた場合、当該速度情報に関連付けられている映像データの送信要求の入力を受 け付ける入力手段と、前記入力手段によって前記送信要求の入力があった場合、前 記映像データの送信要求信号を送信する送信手段と、前記送信手段によって前記 送信要求信号が送信された結果、前記他の通信端末から前記映像データを受信す る第 2の受信手段と、を備えることを特徴とする。  [0015] Further, the communication terminal according to the invention of claim 13 is a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, and speed information of communication terminals other than the communication terminal When the speed information is output by the output means, the first receiving means for receiving the speed information, the output means for outputting the speed information received by the first receiving means, the speed information is associated with the speed information. Input means for accepting an input of a transmission request for video data, a transmission means for transmitting a transmission request signal for the video data when the transmission means is input by the input means, and the transmission means for transmitting the transmission request signal. And a second receiving means for receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted.
[0016] また、請求項 14の発明にかかるデータ送信方法は、相互に通信可能な複数の通 信端末力 なる通信ネットワーク内の通信端末を用いるデータ送信方法であって、前 記通信端末の現在地点の地点情報を前記通信端末以外の他の通信端末に配信す る配信工程と、前記配信工程によって前記地点情報が配信された結果、前記現在地 点に関する映像データの送信要求信号を前記他の通信端末力 受信する受信工程 と、前記受信工程によって送信要求信号が受信された場合、前記現在地点に関する 映像データを取得する取得工程と、前記取得工程によって取得された映像データを 前記送信要求信号を送信した通信端末に送信する送信工程と、を含むことを特徴と する。 [0016] Further, the data transmission method according to the invention of claim 14 includes a plurality of communication methods that can communicate with each other. A data transmission method that uses a communication terminal in a communication network that is a communication terminal, the distribution step of distributing the current location information of the communication terminal to other communication terminals other than the communication terminal, and the distribution step As a result of the distribution of the point information, the reception step of receiving the transmission request signal of the video data related to the current point is received by the other communication terminal, and when the transmission request signal is received by the reception step, An acquisition step of acquiring video data; and a transmission step of transmitting the video data acquired in the acquisition step to the communication terminal that has transmitted the transmission request signal.
[0017] また、請求項 15の発明にかかるデータ受信方法は、相互に通信可能な複数の通 信端末力 なる通信ネットワーク内の通信端末を用いるデータ受信方法であって、前 記通信端末以外の他の通信端末の現在地点の地点情報を受信する第 1の受信ェ 程と、前記第 1の受信工程によって受信された地点情報を出力する出力工程と、前 記出力工程によって前記地点情報が出力された場合、前記他の通信端末の現在地 点に関する映像データの送信要求の入力を受け付ける入力工程と、前記入力工程 によって前記送信要求の入力があった場合、前記現在地点に関する映像データの 送信要求信号を送信する送信工程と、前記送信工程によって前記送信要求信号が 送信された結果、前記他の通信端末から前記現在地点に関する映像データを受信 する第 2の受信工程と、を含むことを特徴とする。  [0017] Further, the data receiving method according to the invention of claim 15 is a data receiving method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other. A first reception process for receiving the location information of the current location of another communication terminal, an output step for outputting the location information received in the first reception step, and the location information is output by the output step. If there is an input step for receiving a transmission request for video data related to the current location of the other communication terminal, and if the transmission request is input in the input step, a transmission request signal for video data related to the current location A second transmission step of receiving video data relating to the current location from the other communication terminal as a result of the transmission request signal being transmitted in the transmission step; Characterized by comprising a receiving step.
[0018] また、請求項 16の発明にかかるデータ送信方法は、相互に通信可能な複数の通 信端末力 なる通信ネットワーク内の通信端末を用いるデータ送信方法であって、映 像データの撮像入力を受け付ける入力工程と、前記入力工程によって撮像入力され た場合、前記映像データを、当該映像データの撮像中における前記通信端末の地 点情報とともに取得する取得工程と、前記取得工程によって取得された地点情報を、 前記他の通信端末に配信する配信工程と、前記配信工程によって前記地点情報が 配信された結果、前記映像データの送信要求信号を、前記他の通信端末から受信 する受信工程と、前記受信工程によって送信要求信号が受信された場合、前記送信 要求信号を送信した通信端末に前記映像データを送信する送信工程と、を含むこと を特徴とする。 [0019] また、請求項 17の発明にかかるデータ受信方法は、相互に通信可能な複数の通 信端末力 なる通信ネットワーク内の通信端末を用いるデータ受信方法であって、前 記通信端末以外の他の通信端末により撮像された映像データの撮像地点情報を受 信する第 1の受信工程と、前記第 1の受信工程によって受信された撮像地点情報を 出力する出力工程と、前記出力工程によって前記撮像地点情報が出力された場合、 前記映像データの送信要求の入力を受け付ける入力工程と、前記入力工程によつ て前記送信要求の入力があった場合、前記映像データの送信要求信号を送信する 送信工程と、前記送信工程によって前記送信要求信号が送信された結果、前記他 の通信端末から前記映像データを受信する第 2の受信工程と、を含むことを特徴とす る。 [0018] Further, the data transmission method according to the invention of claim 16 is a data transmission method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other, wherein image data is captured and input. An acquisition step of acquiring the video data together with the location information of the communication terminal during imaging of the video data, and a point acquired by the acquisition step. A distribution step of distributing information to the other communication terminal; a reception step of receiving a transmission request signal of the video data from the other communication terminal as a result of the distribution of the point information by the distribution step; A transmission step of transmitting the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received by the reception step. It is characterized by and. [0019] Further, the data receiving method according to the invention of claim 17 is a data receiving method using communication terminals in a communication network having a plurality of communication terminals capable of communicating with each other. A first receiving step of receiving imaging point information of video data imaged by another communication terminal; an output step of outputting imaging point information received in the first receiving step; and When the imaging point information is output, an input step for receiving an input of the transmission request for the video data, and when the transmission request is input by the input step, a transmission request signal for the video data is transmitted. A transmission step; and a second reception step of receiving the video data from the other communication terminal as a result of the transmission request signal being transmitted in the transmission step. .
[0020] また、請求項 18の発明に力かるデータ送信プログラムは、請求項 14または 16に記 載のデータ送信方法をコンピュータに実行させることを特徴とする。  [0020] A data transmission program according to the invention of claim 18 is characterized by causing a computer to execute the data transmission method according to claim 14 or 16.
[0021] また、請求項 19の発明に力かるデータ受信プログラムは、請求項 15または 17に記 載のデータ受信方法をコンピュータに実行させることを特徴とする。 [0021] Further, a data reception program according to the invention of claim 19 causes a computer to execute the data reception method according to claim 15 or 17.
[0022] また、請求項 20の発明に力かる記録媒体は、請求項 18に記載のデータ送信プロ グラムを記録したコンピュータに読み取り可能なことを特徴とする。 [0022] Further, a recording medium according to the invention of claim 20 is readable by a computer recording the data transmission program according to claim 18.
[0023] また、請求項 21の発明に力かる記録媒体は、請求項 19に記載のデータ受信プロ グラムを記録したコンピュータに読み取り可能なことを特徴とする。  [0023] Further, a recording medium according to the invention of claim 21 is readable by a computer recording the data receiving program according to claim 19.
図面の簡単な説明  Brief Description of Drawings
[0024] [図 1]図 1は、実施の形態 1にかかるデータ送受信システムの機能的構成を示すプロ ック図である。  FIG. 1 is a block diagram showing a functional configuration of a data transmission / reception system according to a first embodiment.
[図 2]図 2は、第 1の通信端末のデータ送信処理の手順を示すフローチャートである。  FIG. 2 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
[図 3]図 3は、第 2の通信端末のデータ受信処理の手順を示すフローチャートである。  FIG. 3 is a flowchart showing a procedure of data reception processing of the second communication terminal.
[図 4]図 4は、実施例にカゝかるデータ送受信システムのシステム構成を示す説明図で ある。  FIG. 4 is an explanatory diagram showing a system configuration of a data transmission / reception system according to the embodiment.
[図 5]図 5は、ナビゲーシヨン装置のハードウェア構成を示すブロック図である。  FIG. 5 is a block diagram showing a hardware configuration of the navigation device.
[図 6]図 6は、データを送信する車両のナビゲーシヨン装置のデータ送信処理の手順 を示すフローチャートである。 [図 7]図 7は、データを受信する車両のナビゲーシヨン装置のデータ受信処理の手順 を示すフローチャートである。 FIG. 6 is a flowchart showing a procedure of data transmission processing of a navigation device for a vehicle that transmits data. FIG. 7 is a flowchart showing a procedure of data reception processing of the navigation device for a vehicle that receives data.
[図 8]図 8は、地点情報の画面表示の一例を示す説明図である。  FIG. 8 is an explanatory view showing an example of a screen display of point information.
[図 9]図 9は、実施の形態 2にかかるデータ送受信システムの機能的構成を示すプロ ック図である。  FIG. 9 is a block diagram of a functional configuration of the data transmission / reception system according to the second embodiment.
[図 10]図 10は、第 1の通信端末のデータ送信処理の手順を示すフローチャートであ る。  FIG. 10 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
[図 11]図 11は、第 2の通信端末のデータ受信処理の手順を示すフローチャートであ る。  FIG. 11 is a flowchart showing a procedure of data reception processing of the second communication terminal.
[図 12]図 12は、データを送信する車両のナビゲーシヨン装置のデータ送信処理の手 順を示すフローチャートである。  [FIG. 12] FIG. 12 is a flowchart showing a procedure of data transmission processing of a navigation device for a vehicle that transmits data.
[図 13]図 13は、データを受信する車両のナビゲーシヨン装置のデータ受信処理の手 順を示すフローチャートである。  [FIG. 13] FIG. 13 is a flowchart showing a data reception processing procedure of the navigation device for a vehicle that receives data.
[図 14]図 14は、映像データ送信希望通知の画面表示の一例を示す説明図である。 符号の説明  FIG. 14 is an explanatory diagram showing an example of a screen display of a video data transmission request notification. Explanation of symbols
100 データ送受信システム  100 data transmission / reception system
110 第 1の通信端末  110 First communication terminal
111 配信部  111 Distribution Department
112 受信部  112 Receiver
113 取得部  113 Acquisition Department
114 送信部  114 Transmitter
115 判断部  115 Judgment part
120 第 2の通信端末  120 Second communication terminal
121 第 1の受信部  121 First receiver
122 出力部  122 Output section
123 入力部  123 Input section
124 送信部  124 Transmitter
125 第 2の受信部 1100 データ送受信システム 125 Second receiver 1100 Data transmission / reception system
1110 第 1の通信端末  1110 First communication terminal
1111 入力部  1111 Input section
1112 取得部  1112 Acquisition Department
1113 配信部  1113 Distribution Department
1114 受信部  1114 Receiver
1115 送信部  1115 Transmitter
1120 第 2の通信端末  1120 Second communication terminal
1121 第 1の受信部  1121 First receiver
1122 出力部  1122 Output section
1123 入力部  1123 Input section
1124 送信部  1124 Transmitter
1125 第 2の受信部  1125 Second receiver
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0026] 以下に添付図面を参照して、この発明にかかる通信端末、データ送信方法、デー タ受信方法、データ送信プログラム、データ受信プログラムおよび記録媒体の好適な 実施の形態を詳細に説明する。  [0026] Exemplary embodiments of a communication terminal, a data transmission method, a data reception method, a data transmission program, a data reception program, and a recording medium according to the present invention will be described below in detail with reference to the accompanying drawings.
[0027] (実施の形態 1)  (Embodiment 1)
はじめに、実施の形態 1にかかるデータ送受信システムの機能的構成について説 明する。図 1は、実施の形態 1にかかるデータ送受信システムの機能的構成を示すブ ロック図である。図 1において、データ送受信システム 100は、映像データを送信する 第 1の通信端末 110および映像データを受信する第 2の通信端末 120から構成され る。第 1の通信端末 110および第 2の通信端末 120は、相互に通信可能な複数の通 信端末力 なる通信ネットワーク内の通信端末である。  First, the functional configuration of the data transmission / reception system according to the first embodiment will be described. FIG. 1 is a block diagram of a functional configuration of the data transmission / reception system according to the first embodiment. In FIG. 1, a data transmission / reception system 100 includes a first communication terminal 110 that transmits video data and a second communication terminal 120 that receives video data. The first communication terminal 110 and the second communication terminal 120 are communication terminals in a communication network having a plurality of communication terminals capable of communicating with each other.
[0028] 第 1の通信端末 110は、配信部 111、受信部 112、取得部 113、送信部 114、判断 部 115によって構成される。配信部 111は、第 1の通信端末 110の現在地点の地点 情報を第 2の通信端末 120を含む他の通信端末に配信する。現在地点の地点情報 とは、たとえば、第 1の通信端末 110の現在位置の緯度経度情報である。配信部 11 1は、具体的には、たとえば、 GPS受信機によって受信された GPS信号によって第 1 の通信端末 110の現在位置を特定する。 The first communication terminal 110 includes a distribution unit 111, a reception unit 112, an acquisition unit 113, a transmission unit 114, and a determination unit 115. Distribution section 111 distributes the location information of the current location of first communication terminal 110 to other communication terminals including second communication terminal 120. The location information of the current location is, for example, latitude and longitude information of the current location of the first communication terminal 110. Distribution Department 11 Specifically, 1 specifies the current position of the first communication terminal 110 based on, for example, a GPS signal received by a GPS receiver.
[0029] 配信部 111は、具体的には、たとえば、通信ネットワーク内の全ての通信端末に情 報を送信する同報アドレスを用いて、地点情報などを送信する。また、配信部 111は 、特定の基地局の通信エリア内に位置する通信端末のみに地点情報を送信したり、 第 2の通信端末 120の通信用アドレスを特定するなどによって、他の通信端末のうち 限られたものだけに地点情報などを配信することとしてもよい。  [0029] Specifically, the distribution unit 111 transmits point information or the like using, for example, a broadcast address that transmits information to all communication terminals in the communication network. Further, the distribution unit 111 transmits the point information only to the communication terminal located within the communication area of the specific base station, specifies the communication address of the second communication terminal 120, etc. It is also possible to distribute location information etc. to only a limited number.
[0030] 受信部 112は、配信部 111によって地点情報が配信された結果、現在地点に関す る映像データの送信要求信号を第 2の通信端末 120を含む他の通信端末力 受信 する。受信部 112が受信する送信要求信号には、映像データの長さや、どのような方 向力も現在地点を映した映像データが欲 、かが指定されて 、てもよ!/、。  [0030] As a result of the distribution of the point information by the distribution unit 111, the reception unit 112 receives a transmission request signal of video data related to the current point from other communication terminals including the second communication terminal 120. The transmission request signal received by the receiving unit 112 may specify whether the length of the video data or video data that reflects the current location is desired for any direction force! /.
[0031] 取得部 113は、受信部 112によって送信要求信号が受信された場合、現在地点に 関する映像データを取得する。ここで、映像データには、静止画および動画が含まれ る。取得部 113は、受信部 112が受信する送信要求信号に、映像データの長さや、 どのような方向から現在地点を映した映像データが欲しいかが指定されている場合 には、指定された条件に基づ 、て映像を取得する。  [0031] When the transmission request signal is received by the reception unit 112, the acquisition unit 113 acquires video data regarding the current location. Here, the video data includes still images and moving images. If the transmission request signal received by the receiving unit 112 specifies the length of the video data or the direction from which the video data showing the current location is desired, the acquiring unit 113 specifies the specified condition. The video is acquired based on the above.
[0032] たとえば、受信部 112によって送信要求信号が受信されたときに、映像データの取 得を開始することとしてもょ 、し、送信要求信号が受信されてから所定時間後に取得 を開始することとしてもよい。また、映像データの取得の開始後、所定時間経過後に 取得を停止することとしてもよいし、第 1の通信端末 110のユーザの指示によって取 得を停止することとしてもよい。さらに、取得部 113は、後述する判断部 115によって 判断がおこなわれた場合には、判断部 115の判断結果に基づいて、映像データを取 得する。  [0032] For example, when the transmission request signal is received by the reception unit 112, the acquisition of video data may be started, and the acquisition may be started after a predetermined time after the transmission request signal is received. It is good. Further, after the start of the acquisition of the video data, the acquisition may be stopped after a predetermined time has elapsed, or the acquisition may be stopped by an instruction from the user of the first communication terminal 110. Furthermore, the acquisition unit 113 acquires video data based on the determination result of the determination unit 115 when the determination unit 115 described below makes a determination.
[0033] また、このとき、取得した映像データを補足する付加情報を添付できるようにしても よい。たとえば、テキストや音声などで、映像データに映されている事象の説明や実 況などを添付できるようにすれば、情報としての価値を向上させることができる。  [0033] At this time, additional information supplementing the acquired video data may be attached. For example, if it is possible to attach explanations and actual conditions of events reflected in video data using text or audio, the value of information can be improved.
[0034] 送信部 114は、取得部 113によって取得された映像データを送信要求信号を送信 した通信端末に送信する。送信部 114は、たとえば、受信部 112で受信した送信要 求信号力 第 2の通信端末 120の通信アドレスを特定し、映像データを送信する。な お、映像データの送信は、一定時間撮影した映像データを 1つのファイルとして一括 送信してもよいし、リアルタイムにストリーミング配信してもよい。さらに、映像データや 付加情報の形式によっては、送信先での利用に必要なプラグインを添付して送信し てもよい。 [0034] Transmitting section 114 transmits the video data acquired by acquiring section 113 to the communication terminal that transmitted the transmission request signal. For example, the transmission unit 114 transmits the transmission request received by the reception unit 112. Signal seeking power The communication address of the second communication terminal 120 is specified, and video data is transmitted. The video data can be sent as a single file of video data taken for a certain period of time, or in real-time streaming. Furthermore, depending on the format of the video data and additional information, plug-ins necessary for use at the transmission destination may be attached and transmitted.
[0035] 判断部 115は、配信部 111による配信からの経過時間と、受信部 112による送信 要求信号の受信の有無とに基づいて、映像データを取得する力否かを判断する。判 断部 115は、具体的には、たとえば、配信部 111による配信力も所定時間以上経過 した後に送信要求信号を受信しても、映像データを取得しないと判断する。  Determination unit 115 determines whether or not the video data is acquired based on the elapsed time from distribution by distribution unit 111 and whether or not the transmission request signal is received by reception unit 112. Specifically, the determination unit 115 determines that the video data is not acquired even if the transmission request signal is received after the distribution power of the distribution unit 111 has also exceeded a predetermined time, for example.
[0036] つぎに、第 2の通信端末 120の機能的構成について説明する。第 2の通信端末 12 0は、第 1の受信部 121、出力部 122、入力部 123、送信部 124、第 2の受信部 125 によって構成される。  Next, a functional configuration of second communication terminal 120 will be described. The second communication terminal 120 includes a first reception unit 121, an output unit 122, an input unit 123, a transmission unit 124, and a second reception unit 125.
[0037] 第 1の受信部 121は、第 2の通信端末 120以外の他の通信端末である第 1の通信 端末 110の現在地点の地点情報を受信する。前述のように、現在地点の地点情報と は、たとえば、第 1の通信端末 110の現在位置の緯度経度情報である。  [0037] The first receiving unit 121 receives the location information of the current location of the first communication terminal 110, which is a communication terminal other than the second communication terminal 120. As described above, the location information of the current location is, for example, the latitude and longitude information of the current location of the first communication terminal 110.
[0038] 出力部 122は、第 1の受信部 121によって受信された地点情報を出力する。出力 部 122は、たとえば、地点情報を地図上に描画したものを画面表示したり、テキスト形 式の地点情報を画面表示したり音声出力したりする。  The output unit 122 outputs the spot information received by the first receiving unit 121. The output unit 122 displays, for example, a screen where the point information is drawn on a map, displays the point information in text format on the screen, and outputs the sound.
[0039] 入力部 123は、出力部 122によって地点情報が出力された場合、他の通信端末で ある第 1の通信端末 110の現在地点に関する映像データの送信要求の入力を受け 付ける。また、このとき、映像データの長さや、どのような方向力 現在地点を映した 映像データが欲し 、か、映像データの送信方法 (一括送信力ストリーミングか)を指定 でさるようにしてちょい。  [0039] When the location information is output by the output unit 122, the input unit 123 receives an input of a video data transmission request regarding the current location of the first communication terminal 110, which is another communication terminal. Also, at this time, specify the length of the video data, the video data that reflects the current direction of the video, and the video data transmission method (batch transmission power streaming).
[0040] 入力部 123は、具体的には、たとえば、出力部 122によって出力された情報をもと に、ユーザがおこなうデータの送信要求を受け付ける。入力部 123は、具体的には、 たとえば、操作ボタンゃタツチパネル、音声入力装置などによって映像データの送信 要求の入力を受け付ける。  Specifically, input unit 123 accepts a data transmission request made by the user based on the information output by output unit 122, for example. Specifically, the input unit 123 receives an input of a video data transmission request using, for example, an operation button touch panel, an audio input device, or the like.
[0041] 送信部 124は、入力部 123によって送信要求の入力があった場合、映像データの 送信要求信号を送信する。送信部 124は、たとえば、第 1の受信部 121によって受信 した地点情報力 第 1の通信端末 110の通信アドレスを特定し、送信要求信号を送 信する。 [0041] When the transmission unit 124 receives a transmission request from the input unit 123, the transmission unit 124 A transmission request signal is transmitted. For example, the transmitting unit 124 specifies the communication address of the first communication terminal 110 received by the first receiving unit 121 and transmits a transmission request signal.
[0042] 第 2の受信部 125は、送信部 124によって送信要求信号が送信された結果、他の 通信端末である第 1の通信端末 110から現在地点に関する映像データを受信する。 第 2の受信部 125は、送信要求信号を送信したときの現在地点に関する映像データ を受信してもよいし、送信要求信号を送信してから所定時間内における現在地点に 関する映像データを受信してもよい。すなわち、送信要求信号の送信直後の現在地 点を映した映像データを受信してもよいし、送信要求信号の送信後、所定時間経過 後の現在地点を映した映像データを受信してもよ 、。  [0042] As a result of the transmission request signal being transmitted by transmission section 124, second reception section 125 receives video data relating to the current location from first communication terminal 110, which is another communication terminal. The second receiving unit 125 may receive video data related to the current location when the transmission request signal is transmitted, or may receive video data related to the current location within a predetermined time after transmitting the transmission request signal. May be. That is, video data that reflects the current location immediately after transmission of the transmission request signal may be received, or video data that reflects the current location after a predetermined time has elapsed after transmission of the transmission request signal may be received. .
[0043] つぎに、データ送受信システム 100によるデータ送受信処理の手順について説明 する。以下、データの送信をおこなう第 1の通信端末 110のデータ送信処理、および データの受信をおこなう第 2の通信端末 120のデータ受信処理に分けて説明する。 図 2は、第 1の通信端末のデータ送信処理の手順を示すフローチャートである。  Next, a data transmission / reception processing procedure performed by the data transmission / reception system 100 will be described. The following description is divided into data transmission processing of the first communication terminal 110 that performs data transmission and data reception processing of the second communication terminal 120 that performs data reception. FIG. 2 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
[0044] 図 2のフローチャートにおいて、第 1の通信端末 110は、まず、配信部 111によって 、第 2の通信端末 120を含む他の通信端末に、現在地点の地点情報を配信する (ス テツプ S201)。そして、受信部 112によって、第 2の通信端末 120を含む他の通信端 末からデータの送信要求信号を受信するまで待機する (ステップ S 202： Noのループ In the flowchart of FIG. 2, first communication terminal 110 first distributes the location information of the current location to other communication terminals including second communication terminal 120 by distribution unit 111 (step S201). ). Then, the receiver 112 waits until it receives a data transmission request signal from another communication terminal including the second communication terminal 120 (step S 202: No loop).
) o ) o
[0045] データの送信要求信号を受信すると (ステップ S202 : Yes)、取得部 113によって、 現在地点に関する映像データを取得する (ステップ S 203)。このとき、映像データの 取得を開始する時刻や取得する映像の長さが指定されている場合には、指定に合わ せて映像を取得する。また、配信部 111による配信からの経過時間と、受信部 112に よる送信要求信号の受信の有無とに基づ 、て、映像データを取得する力否かを判断 部 115によって判断してもよい。  When a data transmission request signal is received (step S202: Yes), the acquisition unit 113 acquires video data relating to the current location (step S203). At this time, if the start time of video data acquisition or the length of the video to be acquired is specified, the video is acquired in accordance with the specification. Further, based on the elapsed time from distribution by the distribution unit 111 and whether or not the transmission request signal is received by the reception unit 112, the determination unit 115 may determine whether or not the video data is acquired. .
[0046] そして、送信部 114によって、送信要求信号を送信した通信端末に映像データを 送信して (ステップ S204)、本フローチャートによる処理を終了する。映像データの送 信は、一定時間撮影した映像データをファイルとして一括送信してもよいし、リアルタ ィムにストリーミング配信してもよい。 [0046] Then, the transmission unit 114 transmits the video data to the communication terminal that has transmitted the transmission request signal (step S204), and the processing according to this flowchart ends. Video data can be sent as a batch of video data taken for a certain period of time, or in real time. You may also stream it to your website.
[0047] つぎに、第 2の通信端末 120がおこなう処理について説明する。図 3は、第 2の通信 端末のデータ受信処理の手順を示すフローチャートである。図 3のフローチャートに おいて、第 2の通信端末 120は、まず、第 1の受信部 121によって、第 1の通信端末 1 10の地点情報を受信するまで待機する (ステップ S301 :Noのループ)。地点情報を 受信した場合は (ステップ S 301 : Yes)、出力部 122によって、ステップ S301で受信 した地点情報を出力する (ステップ S302)。  Next, processing performed by the second communication terminal 120 will be described. FIG. 3 is a flowchart showing a procedure of data reception processing of the second communication terminal. In the flowchart of FIG. 3, the second communication terminal 120 first waits until the first receiving unit 121 receives the point information of the first communication terminal 110 (step S301: No loop). . When the point information is received (step S301: Yes), the output unit 122 outputs the point information received in step S301 (step S302).
[0048] そして、入力部 123によって、ユーザから映像データの送信要求が入力された力否 かを判断する (ステップ S303)。映像データの送信要求が入力された場合は (ステツ プ S 303： Yes)、第 1の通信端末 110に映像データの送信要求信号を送信する (ステ ップ S304)。一方、映像データの送信要求が入力されない場合は (ステップ S303 : No)、ステップ S301に戻り、以降の処理を繰り返す。  [0048] Then, it is determined whether or not the input unit 123 has received a video data transmission request from the user (step S303). When a video data transmission request is input (step S303: Yes), a video data transmission request signal is transmitted to the first communication terminal 110 (step S304). On the other hand, when the video data transmission request is not input (step S303: No), the process returns to step S301 and the subsequent processing is repeated.
[0049] ステップ S304において、第 1の通信端末 110に映像データの送信要求信号を送 信した場合、第 2の受信部 125によって映像データを受信するまで待機し (ステップ S 305 :Noのループ）、映像データを受信すると（ステップ S305 : Yes)、本フローチヤ ートによる処理を終了する。  [0049] When a video data transmission request signal is transmitted to the first communication terminal 110 in step S304, it waits until video data is received by the second receiver 125 (step S305: No loop). When the video data is received (step S305: Yes), the processing by this flowchart is terminated.
[0050] 以上説明したように、実施の形態 1にかかるデータ送受信システム 100によれば、 相互に通信可能な複数の通信端末力 なる通信ネットワークにおいて、第 1の通信 端末 110によって取得された現在位置に関する映像データを、第 2の通信端末 120 を含む他の通信端末に送信する。これにより、第 2の通信端末 120は、第 1の通信端 末 110の現在地点に関するリアルタイム、もしくはそれに近 、映像データを取得する ことができる。  [0050] As described above, according to the data transmission / reception system 100 according to the first embodiment, the current location acquired by the first communication terminal 110 in the communication network having a plurality of communication terminals capable of communicating with each other. Is transmitted to other communication terminals including the second communication terminal 120. As a result, the second communication terminal 120 can acquire video data related to the current location of the first communication terminal 110 in real time or in the vicinity thereof.
[0051] その際、あら力じめ第 1の通信端末 110の地点情報を配信することによって、他の 通信端末のユーザに、映像データを送信要求するか否か、すなわち、その地点の映 像データが、自己にとって必要な情報である力否かを判断させることができる。これに より、それぞれの通信端末のユーザがより的確に自己が必要とするデータにアクセス することができる。  [0051] At that time, by distributing the point information of the first communication terminal 110, the user of the other communication terminal is requested to transmit the video data, that is, the video at the point. It is possible to determine whether or not data is necessary information for the user. As a result, the user of each communication terminal can access the data he / she needs more precisely.
[0052] また、地点情報などの配信からの経過時間と、送信要求信号の受信とに基づいて、 映像データを取得するカゝ否かを判断することによって、映像データの取得期限を定 める。これにより、たとえば、周囲の状況が変化したり、第 1の通信端末 110が移動す るなどして、本来送信を希望して ヽた内容と異なる映像データが他の通信端末に配 信されるのを回避することができる。 [0052] Also, based on the elapsed time from the distribution of the location information and the reception of the transmission request signal, The video data acquisition deadline is determined by determining whether or not to acquire the video data. As a result, for example, the surroundings change or the first communication terminal 110 moves, so that video data that is different from the content originally intended for transmission is delivered to other communication terminals. Can be avoided.
実施例 1  Example 1
[0053] つぎに、上述した実施の形態 1にかかるデータ送受信システム 100の実施例につ いて説明する。以下の実施例においては、データ送受信システム 100を、車両に搭 載されたナビゲーシヨン装置を用いたデータ送受信システム 400に適用した場合に ついて説明する。  Next, examples of the data transmission / reception system 100 according to the first embodiment will be described. In the following embodiment, a case where the data transmission / reception system 100 is applied to a data transmission / reception system 400 using a navigation device mounted on a vehicle will be described.
[0054] まず、実施例に力かるデータ送受信システム 400のシステム構成について説明する 。図 4は、実施例にカゝかるデータ送受信システムのシステム構成を示す説明図である 。図 4にお!/ヽて、道路 L1,： L2に ίま車両 410, 420 (420a〜420e)力走行して!/ヽる。  First, the system configuration of the data transmission / reception system 400 according to the embodiment will be described. FIG. 4 is an explanatory diagram showing a system configuration of a data transmission / reception system according to the embodiment. In Fig. 4! / Turn on road L1, L2 and drive 410, 420 (420a ~ 420e) to the road.
[0055] また、車両 410, 420に ίま、それぞれナビゲーシヨン装置 411, 421 (421a〜421e )が搭載されている。ナビゲーシヨン装置 411, 421は、車両 410, 420がそれぞれ走 行する道路脇に設置された路側機 430 (430a〜430c)と交信し、データの送受信を おこなう。  Further, navigation devices 411 and 421 (421a to 421e) are mounted on vehicles 410 and 420, respectively. The navigation devices 411 and 421 communicate with the roadside devices 430 (430a to 430c) installed on the side of the road on which the vehicles 410 and 420 run, respectively, and send and receive data.
[0056] 路側機 430a〜430cは、それぞれネットワークと接続されており、通信エリアは、そ れぞれ図 4中の点線で示すエリア A, B, Cである。路側機 430a〜430cの通信エリア 内に進入した車両 410, 420は、それぞれの路側機 430a〜430cを介してネットヮー クに接続し、データの送受信をおこなう。路側機 430は、図示した他、道路や駐車場 など車両 410, 420が進入し得る地点を通信エリアとしてカバーできるよう設置されて いる。  [0056] The roadside devices 430a to 430c are each connected to a network, and the communication areas are areas A, B, and C indicated by dotted lines in FIG. The vehicles 410 and 420 that have entered the communication areas of the roadside devices 430a to 430c are connected to the network via the roadside devices 430a to 430c to transmit and receive data. In addition to the illustration, the roadside machine 430 is installed so as to cover a point where the vehicles 410, 420 such as a road and a parking lot can enter as a communication area.
[0057] 車両 410, 420は、それぞれ自車を特定する IDが、たとえば、 IPアドレスのように、 それぞれの車両 410, 420に一意に割り振られている。この IDは、データ送受信シス テム 400において通信用アドレスに用いられ、ナビゲーシヨン装置 411, 421は、車 両 410, 420の IDを用いて特定の車両 410, 420に情報を送信することができる。そ れぞれの車両 410, 420の IDは、それぞれのナビゲーシヨン装置 411, 421に記憶 されている。 [0058] また、ナビゲーシヨン装置 411, 421は、全ての路側機 430の通信エリア内にある車 両 410, 420の共通アドレスである「同報アドレス」を用いて情報を送信することができ る。同報アドレスを用いることによって、個々の車両 410, 420の IDを知らない場合で あっても、不特定の車両 410, 420にデータを送信することができる。また、個々の路 側機 430ごとの同報アドレスを設けてもよい。たとえば、路側機 430a用の同報ァドレ スを用いて情報を配信した場合、エリア A内にある車両 410, 420に情報が配信され る。 [0057] For vehicles 410 and 420, an ID for identifying the own vehicle is uniquely assigned to each vehicle 410 and 420, for example, as an IP address. This ID is used as a communication address in the data transmission / reception system 400, and the navigation devices 411, 421 can transmit information to a specific vehicle 410, 420 using the ID of the vehicle 410, 420. The IDs of the vehicles 410 and 420 are stored in the navigation devices 411 and 421, respectively. [0058] In addition, the navigation devices 411 and 421 can transmit information using a "broadcast address" that is a common address of the vehicles 410 and 420 in the communication area of all roadside devices 430. . By using the broadcast address, data can be transmitted to unspecified vehicles 410 and 420 even when the IDs of the individual vehicles 410 and 420 are not known. A broadcast address may be provided for each individual roadside machine 430. For example, when information is distributed using the broadcast address for the roadside machine 430a, the information is distributed to the vehicles 410 and 420 in the area A.
[0059] なお、図 4では全て路側機 430の通信エリア内にある車両 410, 420を対象として 同報アドレスを用いて情報を送信するとしているが、これに限ることなぐその通信エリ ァ外の車両を含めて同報アドレスを用いて情報を送信するようにしてもょ 、。つまり、 図 4の通信エリア内に存在する車両間のみならず、図 4の通信エリア外であって Ll、 L2以外の道路を走行している他の車両や、図 4の通信エリア外であって車両 410, 4 20の後方遠くを走行している他の車両等を含めて同報アドレスを用いて情報を送信 するようにしてもよい。これにより、広範囲における不特定の車両に情報を送信するこ とがでさる。  [0059] In Fig. 4, all the vehicles 410 and 420 in the communication area of the roadside machine 430 are used to transmit information using the broadcast address. However, the present invention is not limited to this. Sending information using the broadcast address including the vehicle. In other words, not only between vehicles in the communication area of Fig. 4, but also other vehicles that are outside the communication area of Fig. 4 and are traveling on roads other than Ll and L2, or outside the communication area of Fig. 4. Thus, the information may be transmitted using a broadcast address including other vehicles traveling far behind the vehicles 410 and 420. As a result, information can be transmitted to unspecified vehicles in a wide range.
[0060] また、情報を送信するエリアを指定して送信するようにしてもよ!、。上述したように路 側機 430に同報アドレスが設けられている場合にはその路側機 430を指定すること によりエリアを指定することができる。この指定は、別の道路を走行している車両から も当然可能であり、その車両力も例えば路側機 430cが指定して情報が送信されると 、そのエリア C内にある車両に情報が配信されることになる。  [0060] In addition, an area for transmitting information may be designated and transmitted! As described above, when the roadside machine 430 is provided with a broadcast address, the area can be designated by designating the roadside machine 430. This designation is naturally possible from a vehicle traveling on another road, and when the vehicle power is designated by, for example, the roadside machine 430c and the information is transmitted, the information is distributed to the vehicles in the area C. Will be.
[0061] また、ナビゲーシヨン装置 411, 421は、それぞれ映像撮影用のカメラを備えている 。カメラでは、静止画および動画の撮影が可能である。また、手持ちのデジタルカメラ や携帯電話のカメラなどを用いて撮影した静止画や動画の映像データを取り込むこ とができる。車両 410, 420の搭乗者は、ナビゲーシヨン装置 411, 412のカメラで撮 影した、または他の機器から取り込んだ映像データを、ネットワークを介して他の車両 410, 420〖こ送信すること力 Sできる。  [0061] In addition, the navigation devices 411 and 421 are each provided with a camera for video shooting. The camera can capture still images and moving images. In addition, it can capture video data of still images and videos taken with a digital camera or mobile phone camera. Passengers of vehicles 410 and 420 can transmit video data captured by the cameras of navigation devices 411 and 412 or captured from other devices over the network. it can.
[0062] これに対し、他の車両 410, 420の搭乗者は、送信される映像データが必要か否か を判断した上で、送信を受けるか否かを判断する。たとえば、自車の現在位置近くの 車両 410, 420や、自車がこれから走行する地点にいる車両 410, 420が送信する 映像データ、興味がある分野の映像データであれば、送信を受ける可能性が高い。 In contrast, the passengers of other vehicles 410 and 420 determine whether or not the transmitted video data is necessary, and then determine whether or not to receive the transmission. For example, near the current position of your vehicle The video data transmitted by the vehicles 410 and 420 or the vehicles 410 and 420 at the point where the vehicle is going to travel or the video data of the field of interest is highly likely to be transmitted.
[0063] 以下、映像データを提供する（送信する)側の車両を車両 410、映像データを提供 される（受信する）側の車両を車両 420として説明するが、映像データの送信および 受信は、いずれの車両 410, 420が送信側、受信側となってもよい。  [0063] Hereinafter, the vehicle that provides (sends) video data will be described as the vehicle 410, and the vehicle that provides (receives) video data will be described as the vehicle 420. Any of the vehicles 410 and 420 may be the transmission side and the reception side.
[0064] (ナビゲーシヨン装置 411, 421のハードウェア構成）  [0064] (Hardware configuration of navigation devices 411 and 421)
つぎに、ナビゲーシヨン装置 411, 421のハードウェア構成について説明する。図 5 は、ナビゲーシヨン装置のハードウェア構成を示すブロック図である。図 5において、 ナビゲーシヨン装置 411, 421は、 CPU501と、 ROM502と、 RAM503と、磁気ディ スクドライブ 504と、磁気ディスク 505と、光ディスクドライブ 506と、光ディスク 507と、 音声 IZF (インターフェース） 508と、マイク 509と、スピーカ 510と、入力デバイス 51 1と、映像 IZF512と、ディスプレイ 513と、通信 I/F514と、 GPSレシーノ 515と、を 備えている。また、各構成部 501〜515はバス 520によってそれぞれ接続されている  Next, the hardware configuration of the navigation devices 411 and 421 will be described. FIG. 5 is a block diagram showing a hardware configuration of the navigation device. In FIG. 5, navigation devices 411 and 421 include a CPU 501, a ROM 502, a RAM 503, a magnetic disk drive 504, a magnetic disk 505, an optical disk drive 506, an optical disk 507, an audio IZF (interface) 508, A microphone 509, a speaker 510, an input device 511, a video IZF 512, a display 513, a communication I / F 514, and a GPS Resino 515 are provided. In addition, each component 501 to 515 is connected by a bus 520.
[0065] まず、 CPU501は、ナビゲーシヨン装置 411, 421の全体の制御を司る。 ROM50 2は、ブートプログラム、通信プログラム、データベース作成プログラム、データ解析プ ログラムなどのプログラムを記録している。また、 RAM503は、 CPU501のワークエリ ァとして使用される。 First, the CPU 501 governs overall control of the navigation devices 411 and 421. The ROM 502 records programs such as a boot program, a communication program, a database creation program, and a data analysis program. The RAM 503 is used as a work queryer for the CPU 501.
[0066] 磁気ディスクドライブ 504は、 CPU501の制御にしたがって磁気ディスク 505に対 するデータの読み取り Z書き込みを制御する。磁気ディスク 505は、磁気ディスクドラ イブ 504の制御で書き込まれたデータを記録する。磁気ディスク 505としては、たとえ ば、 HD (ノヽードディスク）や FD (フレキシブルディスク）を用いることができる。  The magnetic disk drive 504 controls reading and writing of data with respect to the magnetic disk 505 according to the control of the CPU 501. The magnetic disk 505 records data written under the control of the magnetic disk drive 504. As the magnetic disk 505, for example, HD (node disk) or FD (flexible disk) can be used.
[0067] また、光ディスクドライブ 506は、 CPU501の制御にしたがって光ディスク 507に対 するデータの読み取り Z書き込みを制御する。光ディスク 507は、光ディスクドライブ 506の制御にしたがってデータの読み出される着脱自在な記録媒体である。光ディ スク 507は、書き込み可能な記録媒体を利用することもできる。また、この着脱可能な 記録媒体として、光ディスク 507のほ力 MO、メモリカードなどであってもよい。  In addition, the optical disk drive 506 controls the reading and writing of data to the optical disk 507 according to the control of the CPU 501. The optical disc 507 is a detachable recording medium from which data is read according to the control of the optical disc drive 506. The optical disk 507 can use a writable recording medium. The removable recording medium may be a power MO of the optical disc 507, a memory card, or the like.
[0068] また、音声 IZF508は、音声入力用のマイク 509および音声出力用のスピーカ 51 0に接続される。マイク 509に受音された音声は、音声 IZF508内で AZD変換され る。また、スピーカ 510からは音声が出力される。なお、マイク 509から入力された音 声は、音声データとして磁気ディスク 505あるいは光ディスク 507に記録可能である。 In addition, the audio IZF 508 includes a microphone 509 for audio input and a speaker 51 for audio output. Connected to 0. Audio received by the microphone 509 is AZD converted in the audio IZF508. Audio is output from the speaker 510. Note that the sound input from the microphone 509 can be recorded on the magnetic disk 505 or the optical disk 507 as sound data.
[0069] また、入力デバイス 511は、文字、数値、各種指示などの入力のための複数のキー を備えたリモコン、キーボード、マウス、タツチパネルなどが挙げられる。さらに、入力 デバイス 511は、デジタルカメラなどの他の情報処理端末 (以下、単に機器という）を 接続し、データの入出力をおこなうことができる。  [0069] Examples of the input device 511 include a remote controller, a keyboard, a mouse, a touch panel, and the like provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like. Furthermore, the input device 511 can connect other information processing terminals (hereinafter simply referred to as devices) such as a digital camera to input / output data.
[0070] この他、入力デバイス 511は、静止画や動画（映像)を撮影可能なカメラを備えてい る。カメラで撮影された静止画や動画は、映像データとして磁気ディスク 505あるいは 光ディスク 507に記録可能である。また、手持ちのデジタルカメラや携帯電話などの 他の機器を入力デバイス 511に接続し、それぞれの機器で撮影した映像データを取 り込むことも可能である。  In addition, the input device 511 includes a camera capable of shooting still images and moving images (videos). Still images and moving images shot by the camera can be recorded on the magnetic disk 505 or the optical disk 507 as video data. It is also possible to connect other devices such as a digital camera or a mobile phone to the input device 511 and capture video data shot by each device.
[0071] また、映像 IZF512は、ディスプレイ 513と接続される。映像 I/F512は、具体的に は、たとえば、ディスプレイ 513全体の制御をおこなうグラフィックコントローラと、即時 表示可能な画像情報を一時的に記録する VRAM (Video RAM)などのバッファメ モリと、グラフィックコントローラから出力される画像データに基づいて、ディスプレイ 5 13を表示制御する制御 ICなどによって構成される。  In addition, the video IZF 512 is connected to the display 513. Specifically, the video I / F 512 includes, for example, a graphic controller that controls the entire display 513, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, it is configured by a control IC that controls display of the display 513.
[0072] ディスプレイ 513には、アイコン、カーソル、メニュー、ウィンドウ、あるいは文字や画 像などの各種データが表示される。このディスプレイ 513は、たとえば、 CRT、 TFT 液晶ディスプレイ、プラズマディスプレイなどを採用することができる。  [0072] Display 513 displays an icon, a cursor, a menu, a window, or various data such as characters and images. As this display 513, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.
[0073] また、通信 IZF514は、無線を介して通信ネットワークに接続され、ナビゲーシヨン 装置 411, 421と CPU501とのインターフェースとして機能する。通信 IZF514は、さ らに、無線を介してインターネットなどの通信網に接続され、この通信網と CPU501と のインターフェースとしても機能する。  In addition, the communication IZF 514 is connected to a communication network via radio and functions as an interface between the navigation devices 411 and 421 and the CPU 501. Further, the communication IZF 514 is connected to a communication network such as the Internet via wireless and functions as an interface between the communication network and the CPU 501.
[0074] 通信網には、 LAN, WAN,公衆回線網や携帯電話網などがある。具体的には、 通信 IZF514は、たとえば、 FMチューナー、 VICS (Vehicle Information and Communication System) Zビーコンレシーノ 、無線ナビゲーシヨン装置、および その他のナビゲーシヨン装置によって構成され、 VICSセンター力も配信される渋滞 や交通規制などの道路交通情報を取得する。なお、 VICSは登録商標である。 [0074] Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, communication IZF514 is composed of, for example, FM tuner, VICS (Vehicle Information and Communication System) Z beacon Resino, wireless navigation device, and other navigation devices, and traffic congestion that VICS center power is also distributed. Road traffic information such as traffic regulations. VICS is a registered trademark.
[0075] また、 GPSレシーバ 515は、 GPS (Global Positioning System)や各種センサ 力もの出力値を用いて、車両 410, 420の現在位置（ナビゲーシヨン装置 411, 421 の現在位置)を示す情報を取得する。現在位置を示す情報は、たとえば緯度経度な どの、地図情報上の一点を特定する情報である。 [0075] In addition, the GPS receiver 515 acquires information indicating the current position of the vehicles 410 and 420 (the current position of the navigation devices 411 and 421) using output values of GPS (Global Positioning System) and various sensors. To do. The information indicating the current position is information for specifying one point on the map information such as latitude and longitude.
[0076] (データ送受信システム 400のデータ送受信処理） [0076] (Data transmission / reception processing of data transmission / reception system 400)
つぎに、データ送受信システム 400がおこなうデータ送受信処理の手順にっ ヽて 説明する。以下、データを送信する車両 410のナビゲーシヨン装置 411でおこなう処 理と、データを受信する車両 420のナビゲーシヨン装置 421でおこなう処理とに分け て説明する。  Next, the procedure of data transmission / reception processing performed by the data transmission / reception system 400 will be described. Hereinafter, the processing performed by the navigation device 411 of the vehicle 410 that transmits data and the processing performed by the navigation device 421 of the vehicle 420 that receives data will be described separately.
[0077] 図 6は、データを送信する車両のナビゲーシヨン装置のデータ送信処理の手順を示 すフローチャートである。図 6のフローチャートにおいて、ナビゲーシヨン装置 411は、 地点情報の送信要求が入力されるまで待機する (ステップ S601 :Noのループ)。た とえば、渋滞に巻き込まれてしまったときなど、現在の周囲の状況を車両 410の搭乗 者が周囲に伝えたくなつた場合に地点情報の送信要求が入力される。  FIG. 6 is a flowchart showing a procedure of data transmission processing of the navigation apparatus for a vehicle that transmits data. In the flowchart of FIG. 6, the navigation apparatus 411 waits until a point information transmission request is input (step S601: No loop). For example, when the passenger of the vehicle 410 wants to convey the current surrounding situation to the surroundings, such as when the vehicle is involved in a traffic jam, a point information transmission request is input.
[0078] 地点情報の送信要求が入力されると (ステップ S601： Yes)、ナビゲーシヨン装置 4 11は、他の車両 420のナビゲーシヨン装置 421に、同報アドレスを用いて地点情報 を配信する（ステップ S602)。地点情報には、車両 410の現在位置の位置情報の他 、映像データのカテゴリー（たとえば、渋滞に関する映像、風景に関する映像など）、 付加情報 (たとえば、状況解説の音声情報やテキスト情報など)の有無などを含めて もよいし、これらの内容が変化しない場合には、地点情報のみを送信してもよい。  [0078] When a point information transmission request is input (step S601: Yes), the navigation device 411 distributes the point information to the navigation device 421 of another vehicle 420 using the broadcast address ( Step S602). The location information includes the location information of the current position of the vehicle 410, video data category (for example, video for traffic jams, video for landscapes, etc.), and presence / absence of additional information (for example, voice information and text information for situation explanations) If these contents do not change, only the point information may be transmitted.
[0079] また、映像データに対して送信期限を設けてもよい。たとえば、渋滞情報を伝えた い場合など、時間の経過とともに変動する情報は、渋滞が解消したり、自車が渋滞か ら抜けたりして状況が変化してしまうと情報価値がない。このため、たとえば、地点情 報を送信した後、一定時間経過後は映像データの撮影をおこなわな ヽよう設定する ようにしてもよい。  [0079] In addition, a transmission time limit may be set for the video data. For example, information that fluctuates over time, such as when you want to convey traffic jam information, has no information value when traffic jams are resolved or the situation changes when the vehicle leaves the traffic jam. For this reason, for example, it may be set so that video data is not taken after a certain period of time has elapsed after transmitting point information.
[0080] 一方、たとえば車両 410力 ある地点に定常的に静止している場合など、定点観測 として特に期限を定めず映像データを送信したいときは、「常設送信」などに設定で きるようにしてもよい。また、たとえば、車両 410, 420などの移動体だけではなぐ信 号機など道路近くの地物にカメラを設置してもよい。この場合も、アクセス期限を定め ず「常設送信」としてもよい。ユーザは常に固定した場所の映像データを得ることがで きる。 [0080] On the other hand, if you want to send video data without a specific time limit for fixed-point observation, such as when the vehicle is constantly stationary at a point where there is 410 power, you can set it to “permanent transmission”. You may make it possible. In addition, for example, a camera may be installed on a feature near a road such as a signal signaled by a moving body such as the vehicles 410 and 420 alone. In this case as well, “permanent transmission” may be used without setting an access time limit. The user can always obtain video data at a fixed location.
[0081] さらに、全ての車両 420に送信される同報アドレスではなぐ特定の基地局内にい る車両 420のみに送信される同報アドレスを用いるなどによって、特定のエリア内に のみデータ送信希望通知を配信してもよい。他にも、たとえば、知り合いのグループ や特定のサービスを受けられる端末を持って 、るグループなどを指定できる同報アド レスを用いてもよい。  [0081] Further, a notification of request for data transmission only in a specific area is used, for example, by using a broadcast address transmitted only to a vehicle 420 in a specific base station rather than a broadcast address transmitted to all vehicles 420. May be delivered. In addition, for example, a broadcast address that can specify a group of acquaintances or a group having a terminal that can receive a specific service may be used.
[0082] 図 6の説明に戻り、ナビゲーシヨン装置 411は、他の車両 420のナビゲーシヨン装 置 421から映像データ送信要求信号を受信したか否かを判断する (ステップ S603) 。映像データ送信要求信号を受信した場合は (ステップ S603 : Yes)、ナビゲーショ ン装置 411に備えられたカメラによって映像データの撮影を開始する (ステップ S604 Returning to the description of FIG. 6, the navigation apparatus 411 determines whether or not a video data transmission request signal has been received from the navigation apparatus 421 of another vehicle 420 (step S603). When the video data transmission request signal is received (step S603: Yes), video data shooting is started by the camera provided in the navigation device 411 (step S604).
) o ) o
[0083] 一方、映像データ送信要求信号を受信しな 、場合は (ステップ S603： No)、ステツ プ S602〖こ戻り、地点情報の配信を継続する。車両 410は移動している場合が多い ので、現在位置は時々刻々と変化するためである。なお、ステップ S604以降の処理 をおこなって 、る際にも、地点情報の送信を継続する。  On the other hand, if the video data transmission request signal is not received (step S603: No), the process returns to step S602, and the distribution of the point information is continued. This is because the vehicle 410 often moves, so the current position changes from moment to moment. It should be noted that the transmission of the point information is continued when performing the processing after step S604.
[0084] そして、所定時間が経過するまで待機して (ステップ S605： Noのループ）、所定時 間が経過すると (ステップ S605 :Yes)、撮影を終了する (ステップ S606)。ここで、所 定時間とは、あら力じめ車両 410の搭乗者によって設定された撮影時間、または映 像データ送信要求信号に含まれている送信希望者によって指定された撮影時間で ある。また、必要があれば、取得した映像データに付加情報を添付する。  Then, the process waits until a predetermined time elapses (step S605: No loop), and when the predetermined time elapses (step S605: Yes), the photographing is finished (step S606). Here, the predetermined time is a shooting time set by a passenger of the vehicle 410 or a shooting time specified by a transmission applicant included in the video data transmission request signal. If necessary, additional information is attached to the acquired video data.
[0085] つづいて、映像データ送信要求信号を送信した車両 420のナビゲーシヨン装置 42 1に映像データを送信して (ステップ S607)、本フローチャートによる処理を終了する 。なお、このように映像データを所定時間分取り溜めたものを一括送信する他、撮影 した映像データを即時に送信するストリーミング送信をおこなってもよい。  Subsequently, the video data is transmitted to the navigation device 421 of the vehicle 420 that has transmitted the video data transmission request signal (step S607), and the processing according to this flowchart ends. In addition to the transmission of video data collected for a predetermined time as described above, streaming transmission may be performed in which captured video data is immediately transmitted.
[0086] また、受信した映像データ送信要求信号に、さらに特定の地域や方向に絞り込ん だデータが欲しいとの要求があれば、該当する地域に絞ってデータを送信することと してもよい。また、データを利用するのに必要なプラグインがある場合には、データと 合わせて送信する。 [0086] Further, the received video data transmission request signal is further narrowed down to a specific region or direction. However, if there is a request for data, the data may be transmitted to the corresponding area. If there is a plug-in necessary for using the data, it is sent together with the data.
[0087] つぎに、データを受信する車両 420のナビゲーシヨン装置 421がおこなう処理につ いて説明する。図 7は、データを受信する車両のナビゲーシヨン装置のデータ受信処 理の手順を示すフローチャートである。図 7のフローチャートにおいて、ナビゲーショ ン装置 421は、まず、車両 410のナビゲーシヨン装置 411から地点情報を受信するま で待機する（ステップ S 701： Noのループ）。  [0087] Next, processing performed by the navigation device 421 of the vehicle 420 that receives data will be described. FIG. 7 is a flowchart showing a procedure of data reception processing of the vehicle navigation apparatus that receives data. In the flowchart of FIG. 7, the navigation device 421 first waits until it receives point information from the navigation device 411 of the vehicle 410 (step S701: No loop).
[0088] 地点情報を受信すると (ステップ S 701： Yes)、ディスプレイ 513による画面表示や スピーカ 510からの音声出力などによって、受信した地点情報を出力する (ステップ S 702)。図 6のステップ S602で説明したように、地点情報には、データのカテゴリーや 付加情報の有無についての情報が含まれている。ナビゲーシヨン装置 421は、これら の情報を出力し、車両 420の搭乗者がデータを受信する力否かの判断を待つ。すな わち、車両 410に対して映像データの送信を要求する映像データ送信要求が入力さ れたカゝ否かを判断する（ステップ S703)。  [0088] When the location information is received (step S701: Yes), the received location information is output by screen display by the display 513, audio output from the speaker 510, or the like (step S702). As described in step S602 of FIG. 6, the point information includes information about the category of data and the presence / absence of additional information. The navigation device 421 outputs these pieces of information and waits for a determination as to whether or not the passenger of the vehicle 420 is capable of receiving data. That is, it is determined whether or not a video data transmission request for requesting transmission of video data to the vehicle 410 has been input (step S703).
[0089] 搭乗者が映像データを受信すると判断し、映像データの送信を求める映像データ 送信要求が入力されると（ステップ S703 : Yes)、ナビゲーシヨン装置 421は、ナビゲ ーシヨン装置 411に対して映像データ送信要求信号を返信する (ステップ S704)。な お、このとき、返信先であるナビゲーシヨン装置 411のアドレスは、ステップ S701で受 信した地点情報の送信元アドレスを用いて特定する。また、さらに特定の地域や方向 の映像データが欲し 、場合には、地区名称や方角などを送信してもよ ヽ。  [0089] When it is determined that the passenger receives video data and a video data transmission request for transmission of video data is input (step S703: Yes), the navigation device 421 sends a video to the navigation device 411. A data transmission request signal is returned (step S704). At this time, the address of the navigation device 411 as a reply destination is specified using the transmission source address of the point information received in step S701. In addition, if you want video data for a specific area or direction, you can send the district name and direction.
[0090] そして、送信要求した映像データを受信するまで待機して (ステップ S 705： Noのル ープ）、映像データを受信すると (ステップ S705 : Yes)、本フローチャートによる処理 を終了する。一方、ステップ S703において、映像データ送信要求が入力されない場 合は（ステップ S703 :No)、ステップ S701に戻り、以降の処理を繰り返す。  [0090] Then, the process waits until the video data requested to be transmitted is received (step S705: No loop). When video data is received (step S705: Yes), the processing according to this flowchart is terminated. On the other hand, if no video data transmission request is input in step S703 (step S703: No), the process returns to step S701 and the subsequent processing is repeated.
[0091] ここで、ステップ S702でおこなう地点情報の出力形態の一例について説明する。  Here, an example of an output form of the spot information performed in step S702 will be described.
図 8は、地点情報の画面表示の一例を示す説明図である。ナビゲーシヨン装置 421 のディスプレイ 513には、地点情報の新着メッセージ 801が表示されている。 [0092] 新着メッセージ 801には、新着の地点情報にっ 、ての送信者情報 811、位置情報 812、カテゴリー情報 813、受信日時情報 814、アクセス期限情報 815、付加情報の 有無情報 816が表示される。 FIG. 8 is an explanatory diagram showing an example of a screen display of point information. A new message 801 of point information is displayed on the display 513 of the navigation device 421. [0092] In the new message 801, the sender information 811, the location information 812, the category information 813, the reception date and time information 814, the access time limit information 815, and the presence / absence information 816 of the additional information are displayed according to the new arrival point information. The
[0093] 送信者情報 811は、たとえば車両 410, 420の IDなど、地点情報の送信元を特定 する情報である。位置情報 812は、地点情報の送信元の現在位置を示す。カテゴリ 一情報 813は、送信される映像データの内容がどのようなカテゴリーに属するかを示 す。受信日時情報 814は、地点情報を受信した日時を示す。アクセス期限情報 815 は、地点情報の送信者が設定した映像データの送信期限を示す。付加情報の有無 情報 816は、映像データに関する付加情報の有無を示す。  [0093] Sender information 811 is information for specifying a transmission source of point information such as IDs of vehicles 410 and 420, for example. The position information 812 indicates the current position of the point information transmission source. Category 1 information 813 indicates what category the content of the transmitted video data belongs to. The reception date / time information 814 indicates the date / time when the point information is received. The access time limit information 815 indicates the transmission time limit of the video data set by the point information sender. Presence / absence of additional information Information 816 indicates the presence / absence of additional information regarding video data.
[0094] さらに、既に受信した地点情報の一覧である既受信地点情報一覧 821が表示され る。既受信地点情報一覧 821に表示されるのは、新着メッセージ 801同様、送信者 情報 831、位置情報 832、カテゴリー情報 833、受信日時情報 834、アクセス期限情 報 835、付加情報の有無情報 836である。  [0094] Furthermore, a received point information list 821 that is a list of already received point information is displayed. As in the new message 801, the sender information 831, location information 832, category information 833, reception date and time information 834, access time limit information 835, and additional information presence / absence information 836 are displayed in the received point information list 821. .
[0095] ユーザは、これらの情報を参考にして、地点情報の送信元に映像データの送信要 求をおこなうか否かを判断する。そして、映像データを受信する場合は、その地点情 報を選択し、映像データ送信要求信号を返信する（図 7のステップ S704参照)。  [0095] With reference to these pieces of information, the user determines whether or not to make a transmission request for video data to the point information transmission source. When video data is received, the point information is selected and a video data transmission request signal is returned (see step S704 in FIG. 7).
[0096] 図示した例では、受信日時が新 、順にデータ一覧が表示されて!、るが、それぞ れの情報によってデータをソートあるいは選択をすることができる。また、検索入力ボ ックス 841にキーワードを入力したり、ジャンル選択ボックス 842からデータのジャンル を選択したりして、データを絞り込むことができる。なお、アクセス期限が経過したデ ータについては、既受信地点情報一覧 821から削除される。  [0096] In the example shown, the data list is displayed in order from the newest reception date and time !, but the data can be sorted or selected according to the respective information. In addition, data can be narrowed down by inputting a keyword in the search input box 841 or selecting a genre of data from the genre selection box 842. Note that the data for which the access time limit has passed is deleted from the received point information list 821.
[0097] また、「地図上に表示」ボタン 851を押下すると、ナビゲーシヨン装置 421に記憶さ れている地図情報上に、受信した地点情報の位置情報 812, 832が示す地点を描 画して表示する。これにより、映像データの送信要求をし得る地点を、ユーザに対し て直感的に把握させることができる。  [0097] When the “display on map” button 851 is pressed, the points indicated by the location information 812 and 832 of the received point information are drawn on the map information stored in the navigation device 421. indicate. This makes it possible for the user to intuitively grasp the point where the video data transmission request can be made.
[0098] このように地図上に地点情報を表示する場合、地点情報を送信した車両 410の現 在位置の変化を点やアイコンで表示させることとしてもよい。たとえば、地点情報の送 信力もアクセス期限までの間、送信元から定期的に現在地点情報を受信し、受信し た情報を元に地図上の点やアイコンを移動させる。これにより、地点情報の送信元か ら送信される映像データがどの地点の映像かをより正確に把握することができる。 [0098] When the point information is displayed on the map in this way, a change in the current position of the vehicle 410 that transmitted the point information may be displayed as a point or an icon. For example, the current location information is periodically received from the sender and received until the access deadline. Move points and icons on the map based on the information. As a result, it is possible to more accurately grasp which point the video data transmitted from the point information transmission source is.
[0099] さらに、「経路上のみ表示」ボタン 852を押下すると、ナビゲーシヨン装置 421で設 定された目的地点までの経路上の地点情報のみを表示する。これにより、ユーザは、 自車がこれから走行する経路上の地点情報のみを表示させ、現在の状況の映像デ ータを得ることがでさる。  Further, when the “display only on route” button 852 is pressed, only the point information on the route to the destination point set by the navigation device 421 is displayed. As a result, the user can display only point information on the route on which the vehicle will travel and obtain video data of the current situation.
[0100] 以上説明したように、本実施例に力かるデータ送受信システムによれば、ナビゲー シヨン装置 421からの映像データ送信要求に基づいて、ナビゲーシヨン装置 411で 車両 410の現在位置に関する映像データを撮影し、ナビゲーシヨン装置 421に送信 する。これ〖こより、車両 420の搭乗者は、車両 410の現在地点に関する映像をリアル タイム、もしくはそれに近 、形で取得することができる。  [0100] As described above, according to the data transmission / reception system according to the present embodiment, the navigation device 411 receives the video data related to the current position of the vehicle 410 based on the video data transmission request from the navigation device 421. Take a picture and send it to the navigation device 421. From this, the passenger of the vehicle 420 can acquire the video regarding the current location of the vehicle 410 in real time or in the form of it.
[0101] また、あらかじめ車両 410の地点情報を配信することによって、車両 420のユーザ に、映像データを送信要求するか否か、すなわち、その地点の映像データ力 自己 にとつて必要な情報である力否かを判断させることができる。これにより、それぞれの 通信端末のユーザがより的確に自己が必要とするデータにアクセスすることができる  [0101] Further, it is necessary information regarding whether or not to request transmission of video data to the user of the vehicle 420 by distributing the point information of the vehicle 410 in advance, that is, the video data power of the point itself. It can be judged whether it is power or not. As a result, each communication terminal user can access the data he / she needs more precisely.
[0102] また、映像データの撮影にあたって、アクセス期限を定めたり、地点情報の表示をリ アルタイムに更新する。これにより、たとえば、地点情報を送信した車両 410が移動し たり、周囲の状況が変化するなどして、映像データの送信を要求した搭乗者が、本来 送信を希望していた内容と異なる映像データが配信されるのを回避することができる [0102] In addition, when shooting video data, an access time limit is set, and the display of point information is updated in real time. As a result, for example, when the vehicle 410 that transmitted the point information moves or the surrounding situation changes, the passenger who requested the transmission of the video data has a different video data from the content originally desired to be transmitted. Can be avoided
[0103] (実施の形態 2) [Embodiment 2]
つづ 、て、実施の形態 2にかかるデータ送受信システムの機能的構成にっ 、て説 明する。図 9は、実施の形態 2にかかるデータ送受信システムの機能的構成を示すブ ロック図である。図 9において、データ送受信システム 1100は、映像データを送信す る第 1の通信端末 1110および映像データを受信する第 2の通信端末 1120から構成 される。第 1の通信端末 1110および第 2の通信端末 1120は、相互に通信可能な複 数の通信端末力 なる通信ネットワーク内の通信端末である。 [0104] 第 1の通信端末 1110は、入力部 1111、取得部 1112、配信部 1113、受信部 111 4、送信部 1115によって構成される。入力部 1111は、映像データの撮像入力を受 け付ける。ここで、撮像入力とは、映像の撮影を指示する情報の入力である。入力部 1111は、具体的には、たとえば、第 1の通信端末 1110に設けられた操作ボタンから の入力や音声入力などを受け付ける。 Next, the functional configuration of the data transmission / reception system according to the second embodiment will be described. FIG. 9 is a block diagram of a functional configuration of the data transmission / reception system according to the second embodiment. In FIG. 9, a data transmission / reception system 1100 includes a first communication terminal 1110 that transmits video data and a second communication terminal 1120 that receives video data. The first communication terminal 1110 and the second communication terminal 1120 are communication terminals in a communication network having a plurality of communication terminals capable of communicating with each other. The first communication terminal 1110 includes an input unit 1111, an acquisition unit 1112, a distribution unit 1113, a reception unit 1114, and a transmission unit 1115. The input unit 1111 accepts imaging input of video data. Here, the imaging input is an input of information instructing video shooting. Specifically, the input unit 1111 accepts an input from an operation button provided on the first communication terminal 1110, a voice input, or the like.
[0105] 取得部 1112は、入力部 1111によって撮像入力された場合、映像データを、当該 映像データの撮像中における第 1の通信端末 1110の地点情報 (以下、撮像地点情 報という）とともに取得する。第 1の通信端末 1110の撮像地点情報とは、第 1の通信 端末 1110の、それぞれの時刻における現在位置を特定する情報であり、たとえば、 第 1の通信端末 1110のそれぞれの時刻における緯度経度情報である。また、映像 データには静止画および動画が含まれる。取得部 1112は、たとえば、第 1の通信端 末 1110に設けられたカメラによって映像データを撮像し、撮像地点情報を付加して 保存する。  [0105] The acquisition unit 1112 acquires the video data together with the point information of the first communication terminal 1110 during the imaging of the video data (hereinafter referred to as imaging point information) when the input unit 1111 captures and inputs the video data. . The imaging point information of the first communication terminal 1110 is information that identifies the current position of the first communication terminal 1110 at each time. For example, latitude and longitude information at each time of the first communication terminal 1110 It is. Video data includes still images and moving images. For example, the acquisition unit 1112 captures video data with a camera provided in the first communication terminal 1110, and adds and stores imaging point information.
[0106] 配信部 1113は、取得部 1112によって取得された撮像地点情報を、第 2の通信端 末 1120を含む他の通信端末に配信する。配信部 1113は、具体的には、たとえば、 通信ネットワーク内の全ての通信端末に情報を送信する同報アドレスを用いて、撮像 地点情報を送信する。また、配信部 1113は、特定の基地局の通信エリア内に位置 する通信端末のみに撮像地点情報を送信したり、第 2の通信端末 1120の通信用ァ ドレスを個別に特定するなどによって、他の通信端末のうち限られたものだけに撮像 地点情報を配信することとしてもょ 、。  Distribution unit 1113 distributes the imaging point information acquired by acquisition unit 1112 to other communication terminals including second communication terminal 1120. Specifically, the distribution unit 1113 transmits the imaging point information using, for example, a broadcast address that transmits information to all communication terminals in the communication network. In addition, the distribution unit 1113 transmits the imaging point information only to the communication terminals located within the communication area of the specific base station, or specifies the communication address of the second communication terminal 1120 individually, for example. It is also possible to distribute imaging point information to only a limited number of communication terminals.
[0107] 受信部 1114は、配信部 1113によって撮像地点情報が配信された結果、映像デ ータの送信要求信号を、第 2の通信端末 1120を含む他の通信端末から受信する。 受信部 1114が受信する送信要求信号には、映像データの長さや、さらに絞り込んだ 撮影地点を特定する情報が含まれて ヽてもよ ヽ。  As a result of the imaging point information being distributed by distribution unit 1113, reception unit 1114 receives a transmission request signal for video data from other communication terminals including second communication terminal 1120. The transmission request signal received by the receiving unit 1114 may include information for specifying the length of the video data and the further narrowed shooting point.
[0108] 送信部 1115は、受信部 1114によって送信要求信号が受信された場合、送信要 求信号を送信した通信端末に映像データを送信する。このとき、受信部 1114が受信 した送信要求信号に、映像データの長さや撮影地点を特定する情報が含まれて ヽた 場合は、取得部 1112によって撮影された映像データを切り出して送信する。 [0109] 送信部 1115は、たとえば、受信部 1114で受信した送信要求信号から第 2の通信 端末 1120の通信アドレスを特定し、映像データを送信する。なお、映像データの送 信は、一定時間分の映像データを 1つのファイルとして一括送信してもよいし、一定 期間接続を維持してストリーミング送信してもよい。さら〖こ、映像データや付加情報の 形式によっては、送信先での利用に必要なプラグインを添付して送信してもよ ヽ。 [0108] When the transmission request signal is received by the reception unit 1114, the transmission unit 1115 transmits the video data to the communication terminal that has transmitted the transmission request signal. At this time, if the transmission request signal received by the receiving unit 1114 includes information specifying the length of the video data or the shooting location, the video data shot by the acquiring unit 1112 is cut out and transmitted. Transmitting section 1115 specifies the communication address of second communication terminal 1120 from the transmission request signal received by receiving section 1114, for example, and transmits video data. Note that the video data may be transmitted as a single file of video data for a certain period of time, or may be streamed while maintaining the connection for a certain period. Furthermore, depending on the format of the video data and additional information, you may attach the plug-in required for use at the destination.
[0110] つぎに、第 2の通信端末 1120の機能的構成について説明する。第 2の通信端末 1 120は、第 1の受信部 1121、出力部 1122、入力部 1123、送信部 1124、第 2の受 信部 1125によって構成される。第 1の受信部 1121は、第 2の通信端末 1120以外の 他の通信端末 (たとえば、第 1の通信端末 1110)により撮像された映像データの撮像 地点情報を受信する。撮像地点情報とは、映像データが撮影された時刻における他 の通信端末の現在位置を特定する情報であり、たとえば、それぞれの時刻における 緯度経度情報である。  Next, a functional configuration of second communication terminal 1120 will be described. The second communication terminal 1 120 includes a first reception unit 1121, an output unit 1122, an input unit 1123, a transmission unit 1124, and a second reception unit 1125. First receiving section 1121 receives imaging point information of video data captured by another communication terminal other than second communication terminal 1120 (for example, first communication terminal 1110). The imaging point information is information for specifying the current position of another communication terminal at the time when the video data is captured, and is, for example, latitude / longitude information at each time.
[0111] 出力部 1122は、第 1の受信部 1121によって受信された撮像地点情報を出力する 。出力部 1122は、たとえば、撮像地点情報を地図上に描画したものを画面表示した り、テキスト形式の撮像地点情報を画面表示したり音声出力したりする。  [0111] The output unit 1122 outputs imaging point information received by the first receiving unit 1121. The output unit 1122 displays, for example, a drawing of imaging point information on a map, displays the imaging point information in text format on the screen, and outputs sound.
[0112] 入力部 1123は、出力部 1122によって撮像地点情報が出力された場合、映像デ ータの送信要求の入力を受け付ける。このとき、映像データの長さや、撮影地点をさ らに絞り込んで指定してもよい。また、映像データの送信方法 (一括送信かストリーミ ング送信力 )を指定できるようにしてもょ 、。  [0112] When the imaging unit information is output by the output unit 1122, the input unit 1123 receives an input of a video data transmission request. At this time, the length of the video data and the shooting point may be further narrowed down and specified. You can also specify the video data transmission method (batch transmission or streaming transmission power).
[0113] 入力部 1123は、具体的には、たとえば、出力部 1122によって出力された情報をも とに、ユーザが入力するデータの送信要求を受け付ける。入力部 1123は、具体的に は、たとえば、操作ボタンゃタツチパネル、音声入力装置などによって映像データの 送信要求の入力を受け付ける。  Specifically, input unit 1123 accepts a transmission request for data input by the user based on the information output by output unit 1122, for example. Specifically, the input unit 1123 receives an input of a video data transmission request using, for example, an operation button touch panel, an audio input device, or the like.
[0114] 送信部 1124は、入力部 1123によって送信要求の入力があった場合、映像データ の送信要求信号を送信する。送信部 1124は、たとえば、第 1の受信部 1121によつ て受信した撮像地点情報の送信元アドレス力も第 1の通信端末 1110の通信アドレス を特定し、送信要求信号を送信する。  [0114] When a transmission request is input by the input unit 1123, the transmission unit 1124 transmits a transmission request signal for video data. For example, the transmission unit 1124 specifies the communication address of the first communication terminal 1110 for the transmission source address of the imaging point information received by the first reception unit 1121 and transmits a transmission request signal.
[0115] 第 2の受信部 1125は、送信部 1124によって送信要求信号が送信された結果、他 の通信端末力 映像データを受信する。 [0115] The second reception unit 1125 receives the transmission request signal from the transmission unit 1124, and others Communication terminal power Receive video data.
[0116] なお、上述した構成においては、第 1の通信端末 1110の取得部 1112は、映像デ 一タの撮像中における第 1の通信端末 1110の地点情報である撮像地点情報を取得 することとしたが、この他、映像データの撮像時間（映像データを撮影した時刻）に関 する情報や、映像データの撮像中における第 1の通信端末 1110の速度情報 (たとえ ば、停止している力、所定以上の速度で移動しているかなど）を取得することとしても よい。  [0116] In the configuration described above, the acquisition unit 1112 of the first communication terminal 1110 acquires imaging point information that is point information of the first communication terminal 1110 during imaging of the video data. However, in addition to this, information regarding the imaging time of video data (the time when video data was captured) and speed information of the first communication terminal 1110 during imaging of video data (for example, the power of stopping, It is also possible to acquire whether the vehicle is moving at a speed higher than a predetermined speed.
[0117] この場合、配信部 1113は、取得部 1112によって取得された各情報 (撮影時間に 関する情報、速度情報)を他の通信装置に送信する。また、第 2の通信端末 1120は 、第 1の受信部 1121によって各情報を受信し、出力部 1122によって出力する。また 、各情報は、撮像地点情報および撮像時間情報など、複数の種類の情報を同時に 取得'配信することとしてもよい。  In this case, distribution section 1113 transmits each piece of information acquired by acquisition section 1112 (information relating to shooting time, speed information) to another communication device. In addition, the second communication terminal 1120 receives each piece of information by the first receiving unit 1121 and outputs it by the output unit 1122. In addition, each information may be acquired and distributed simultaneously as a plurality of types of information such as imaging point information and imaging time information.
[0118] つぎに、データ送受信システム 1100によるデータ送受信処理の手順について説 明する。以下、データの送信をおこなう第 1の通信端末 1110のデータ送信処理、お よびデータの受信をおこなう第 2の通信端末 1120のデータ受信処理に分けて説明 する。図 10は、第 1の通信端末のデータ送信処理の手順を示すフローチャートであ る。  Next, the procedure of data transmission / reception processing by the data transmission / reception system 1100 will be described. The following description is divided into data transmission processing of the first communication terminal 1110 that performs data transmission and data reception processing of the second communication terminal 1120 that performs data reception. FIG. 10 is a flowchart showing a procedure of data transmission processing of the first communication terminal.
[0119] 図 10のフローチャートにおいて、第 1の通信端末 1110は、まず、入力部 1111によ つて、映像データの撮像入力を受け付けるまで待機する (ステップ S 1201： Noのル 一プ)。映像データの撮像入力を受け付けると (ステップ S1201 : Yes)、取得部 111 2によって、映像データおよび撮像地点情報を取得する (ステップ S1202)。  In the flowchart of FIG. 10, first communication terminal 1110 first stands by until input unit 1111 accepts an imaging input of video data (step S 1201: No loop). When the imaging input of the video data is received (step S1201: Yes), the acquisition unit 111 2 acquires the video data and imaging point information (step S1202).
[0120] つぎに、配信部 1113によって、相互に通信可能な他の通信端末に撮像地点情報 を配信する (ステップ S1203)。そして、他の通信端末 (たとえば、第 2の通信端末 11 20)から送信要求信号を受信するまで待機して (ステップ S 1204： Noのループ）、送 信要求信号を受信すると (ステップ S 1204 : Yes)、ステップ SI 202で取得した映像 データを送信して (ステップ S1205)、本フローチャートによる処理を終了する。映像 データの送信は、一定時間分の映像データをファイルとして一括送信してもよ!/ヽし、 一定時間接続を維持してストリーミング送信してもよい。 [0121] つぎに、第 2の通信端末 1120がおこなう処理について説明する。図 11は、第 2の 通信端末のデータ受信処理の手順を示すフローチャートである。図 11のフローチヤ ートにおいて、第 2の通信端末 1120は、まず、第 1の受信部 1121によって、相互に 通信可能な他の通信端末 (たとえば、第 1の通信端末 1110)から撮像地点情報を受 信するまで待機する（ステップ S 1301： Noのループ）。 Next, the distribution unit 1113 distributes the imaging point information to other communication terminals that can communicate with each other (step S1203). Then, it waits until a transmission request signal is received from another communication terminal (for example, second communication terminal 11 20) (step S 1204: No loop) and receives the transmission request signal (step S 1204: (Yes), the video data acquired in step SI 202 is transmitted (step S1205), and the processing according to this flowchart ends. Video data can be sent in batches of video data for a certain time as a file! You can send streaming data while maintaining the connection for a certain time. Next, processing performed by the second communication terminal 1120 will be described. FIG. 11 is a flowchart showing a procedure of data reception processing of the second communication terminal. In the flowchart of FIG. 11, the second communication terminal 1120 first receives imaging point information from other communication terminals (for example, the first communication terminal 1110) that can communicate with each other by the first receiving unit 1121. Wait until it is received (step S1301: No loop).
[0122] 撮像地点情報を受信すると (ステップ S 1301： Yes)、出力部 1122によって、撮像 地点情報を出力する (ステップ S 1302)。そして、入力部 1123によって、映像データ の送信要求を受け付けたか否力判断する (ステップ S1303)。送信要求を受け付け た場合は (ステップ S1303 :Yes)、送信部 1124によって、撮像地点情報を送信した 他の通信端末に、映像データ送信要求信号を送信する (ステップ S 1304)。  [0122] When the imaging point information is received (step S1301: Yes), the output unit 1122 outputs the imaging point information (step S1302). Then, it is determined whether or not the video data transmission request has been received by the input unit 1123 (step S1303). When the transmission request is accepted (step S1303: Yes), the transmission unit 1124 transmits a video data transmission request signal to another communication terminal that has transmitted the imaging point information (step S1304).
[0123] そして、第 2の受信部 1125によって、送信要求信号を送信した他の通信端末から 映像データを受信するまで待機して (ステップ S 1305 : Noのループ）、映像データを 受信すると (ステップ S1305 : Yes)、本フローチャートによる処理を終了する。一方、 ステップ S 1303にお!/、て、送信要求を受け付けな!/、場合は（ステップ S 1303： No)、 ステップ S 1301に戻り、撮像地点情報の受信を継続する。  [0123] Then, the second reception unit 1125 waits until video data is received from another communication terminal that has transmitted the transmission request signal (step S 1305: No loop), and receives video data (step S1305). S1305: Yes), the process according to this flowchart is terminated. On the other hand, if the transmission request is not accepted! / In step S1303 (step S1303: No), the process returns to step S1301, and the reception of the imaging point information is continued.
[0124] 以上説明したように、実施の形態 2にかかるデータ送受信システム 1100によれば、 相互に通信可能な複数の通信端末力 なる通信ネットワークにおいて、第 1の通信 端末 1110によって取得された映像データの撮像地点情報を、第 2の通信端末 1120 を含む他の通信端末に送信する。これにより、第 2の通信端末 1120は、第 1の通信 端末 1110によって取得された映像データを、撮像地点情報を参考にして必要か否 かを判断し、必要がある場合には送信を要求することができる。  As described above, according to the data transmission / reception system 1100 according to the second exemplary embodiment, the video data acquired by the first communication terminal 1110 in the communication network having a plurality of communication terminals capable of communicating with each other. Is transmitted to other communication terminals including the second communication terminal 1120. Accordingly, the second communication terminal 1120 determines whether the video data acquired by the first communication terminal 1110 is necessary with reference to the imaging point information, and requests transmission if necessary. be able to.
[0125] また、撮像地点情報の配信からの経過時間と、送信要求信号の受信時刻とに基づ いて、第 1の通信端末 1110で映像データを送信するカゝ否かを判断することとしてもよ い。これにより、時間の経過とともに情報価値が薄れるデータを、他の通信端末に配 信することを回避することができる。  [0125] Further, based on the elapsed time from the delivery of the imaging point information and the reception time of the transmission request signal, it may be determined whether the first communication terminal 1110 is ready to transmit video data. Good. As a result, it is possible to avoid distributing data whose information value fades with time to other communication terminals.
[0126] また、上述した実施の形態 2においては、第 1の通信端末 1110が取得した映像デ ータを、直接第 2の通信端末 1120に送信したが、第 1の通信端末 1110が取得した 映像データを、通信サーバを介して第 2の通信端末 1120に送信することとしてもよ ヽ [0127] 具体的には、たとえば、第 1の通信端末 1110は、取得した映像データおよび撮像 地点情報を通信サーバに送信する。通信サーバでは、送信された映像データを保 存するとともに、第 1の通信端末 1110以外の通信端末に、撮像地点情報を送信する 。撮像地点情報が送信された他の通信端末は、通信サーバに対して映像データの 送信要求信号を送信し、通信サーバは送信要求信号の送信元の通信端末に、映像 データを送信する。 [0126] In Embodiment 2 described above, the video data acquired by first communication terminal 1110 is transmitted directly to second communication terminal 1120. However, first communication terminal 1110 acquires the video data. The video data may be transmitted to the second communication terminal 1120 via the communication server. [0127] Specifically, for example, first communication terminal 1110 transmits the acquired video data and imaging point information to the communication server. The communication server stores the transmitted video data and transmits imaging point information to a communication terminal other than the first communication terminal 1110. The other communication terminal to which the imaging point information has been transmitted transmits a video data transmission request signal to the communication server, and the communication server transmits the video data to the communication terminal that has transmitted the transmission request signal.
[0128] これにより、たとえば、データの通信量や送受信状況を通信サーバによって一元管 理することができる。また、直接データの送受信をおこなわないため、第 1の通信端末 1110および第 2の通信端末 1120の通信用アドレスを、相互に知られることがなぐ 個人情報を保護することができる。  [0128] Thereby, for example, the communication volume and transmission / reception status of data can be centrally managed by the communication server. In addition, since direct data transmission and reception are not performed, it is possible to protect personal information in which the communication addresses of the first communication terminal 1110 and the second communication terminal 1120 are not known to each other.
実施例 2  Example 2
[0129] つぎに、上述した実施の形態 2にかかるデータ送受信システム 1100の実施例につ いて説明する。なお、実施例に力かるデータ送受信システムのシステム構成につい は、実施の形態 1にかかる実施例のデータ送受信システム 400のシステム構成と同 様であるので、同じ符号を用い、詳細な説明を省略する。また、ナビゲーシヨン装置 4 11, 421のハードウェア構成についても、実施の形態 1の実施例と同様であるので、 同じ符号を用い、詳細な説明を省略する。  [0129] Next, an example of the data transmission / reception system 1100 according to the second embodiment will be described. Note that the system configuration of the data transmission / reception system that is relevant to the example is the same as the system configuration of the data transmission / reception system 400 of the example according to the first embodiment. Therefore, the same reference numerals are used and detailed description is omitted. . Also, the hardware configuration of the navigation devices 4 11 and 421 is the same as that of the embodiment of the first embodiment, so the same reference numerals are used and the detailed description is omitted.
[0130] (データ送受信システム 400のデータ送受信処理）  [0130] (Data transmission / reception system 400 data transmission / reception processing)
つぎに、データ送受信システム 400がおこなうデータ送受信処理の手順にっ ヽて 説明する。以下、データを送信する車両 410のナビゲーシヨン装置 411でおこなう処 理と、データを受信する車両 420のナビゲーシヨン装置 421でおこなう処理とに分け て説明する。  Next, the procedure of data transmission / reception processing performed by the data transmission / reception system 400 will be described. Hereinafter, the processing performed by the navigation device 411 of the vehicle 410 that transmits data and the processing performed by the navigation device 421 of the vehicle 420 that receives data will be described separately.
[0131] 図 12は、データを送信する車両のナビゲーシヨン装置のデータ送信処理の手順を 示すフローチャートである。図 12のフローチャートにおいて、ナビゲーシヨン装置 411 は、入力デバイス 511を介して、映像データの撮影開始指示が入力されるまで待機 する（ステップ S 1601： Noのループ)。撮影開始指示が入力されると (ステップ S160 1 : Yes)、ナビゲーシヨン装置 411は、自装置に設けられたカメラによって周囲の映 像を撮影する (ステップ S1602)。 [0131] FIG. 12 is a flowchart showing a procedure of data transmission processing of the navigation device for a vehicle that transmits data. In the flowchart of FIG. 12, the navigation apparatus 411 waits until an image data shooting start instruction is input via the input device 511 (step S 1601: No loop). When an instruction to start shooting is input (step S160 1: Yes), the navigation device 411 uses the camera provided on its own device to monitor the surroundings. Take an image (step S1602).
[0132] ナビゲーシヨン装置 411は、撮影終了指示が入力されない間は (ステップ S1603 :  [0132] While the navigation apparatus 411 does not input a shooting end instruction (step S1603:
No)、ステップ S1602に戻り、周囲の撮影を継続する。このとき、ディスク容量などハ 一ドウエア資源に制約がある場合には、一定時間ごと、または一定距離ごとに撮影す ることとしてもよい。また、映像データに関する状況解説の音声情報やテキスト情報な ど（以下、付加情報と 、う）を付加してもよ ヽ。  No), go back to step S1602 and continue shooting around. At this time, if hardware resources such as disk capacity are limited, images may be taken at regular intervals or at regular intervals. In addition, audio information and text information (hereinafter referred to as additional information) for commentary on video data may be added.
[0133] そして、撮影終了指示が入力されると (ステップ S1603 : Yes)、撮影を終了し、詳細 情報を付カ卩して映像データを保存する（ステップ S1604)。ここで、ステップ S1604で 付加する詳細情報とは、たとえば、映像データの撮影時におけるナビゲーシヨン装置 411の現在地点（すなわち、映像データの撮影地点）や、映像データが撮影された 時間（時刻）、映像データのカテゴリー（たとえば、渋滞に関する映像、風景に関する 映像など)、映像データのタイトル、付加情報 (状況解説の音声情報やテキスト情報 など）の有無である。  [0133] Then, when an instruction to end shooting is input (step S1603: Yes), shooting is ended, video information is saved with detailed information attached (step S1604). Here, the detailed information added in step S1604 is, for example, the current location of the navigation device 411 at the time of video data shooting (that is, the video data shooting location), the time (time) when the video data was shot, This includes the presence or absence of video data categories (for example, video related to traffic jams, video related to landscapes), video data titles, and additional information (such as audio information and text information for situational commentary).
[0134] また、詳細情報には、撮影時に車両 410が停止している力、高速で走行しているか などの速度情報を付加してもよい。この場合、たとえば、停止した車両 410が定点観 測的に捉えた映像や、所望の経路を高速で走行する車両 410の映像、渋滞に巻き 込まれ低速で走行する車両 410の映像などを選別することができる。  [0134] Further, the detailed information may be added with speed information such as the force at which the vehicle 410 is stopped at the time of shooting and whether the vehicle is traveling at high speed. In this case, for example, an image captured by the stationary vehicle 410 as a fixed point observation, an image of the vehicle 410 traveling at a high speed on a desired route, an image of the vehicle 410 traveling at a low speed in a traffic jam, and the like are selected. be able to.
[0135] また、たとえば、ユーザが周囲に撮影したいものを発見した場合、その後に撮影開 始指示を入力しても、車両 410は移動しており、撮影したいものを取り逃してしまう可 能性がある。これを回避するため、撮影の指示に関わらず、常時周囲の映像を一定 時間分バッファリングしておいてもよい。この場合、入力操作によって、撮影したいも のを捉えた映像を切り出し、該当する詳細情報を付加して保存する。  [0135] Also, for example, if the user finds an object to be photographed in the surroundings, the vehicle 410 may move even if a photographing start instruction is subsequently input, and the object to be photographed may be missed. is there. In order to avoid this, the surrounding image may be buffered for a certain period of time regardless of the shooting instruction. In this case, the input operation is used to cut out a video that captures what you want to shoot, add the corresponding detailed information, and save it.
[0136] つぎに、ナビゲーシヨン装置 411は、入力デバイス 511を介して、保存した映像デ ータの送信希望が入力された力否かを判断する (ステップ S1605)。送信希望が入 力された場合は（ステップ S1605 :Yes)、他の車両 420のナビゲーシヨン装置 421に 、同報アドレスを用いて映像データ送信希望通知を配信する (ステップ S 1606)。一 方、映像データの送信希望が入力されない場合は (ステップ S1605 :No)、ステップ S 1601〖こ戻り、映像の撮影開始の指示を待つ。 [0137] ステップ SI 606で配信する映像データ送信希望通知には、送信を希望する映像 データについての詳細情報が含まれている。詳細情報は、前述したように映像デー タの撮影地点や、映像データが撮影された時間（時刻）、映像データのカテゴリー、 映像データのタイトル、付加情報の有無などである。なお、これらの情報が常時共通 している場合などは、送信を省略してもよい。 Next, the navigation device 411 determines whether or not the transmission request for the stored video data has been input via the input device 511 (step S1605). If a transmission request is input (step S1605: Yes), a video data transmission request notification is delivered to the navigation device 421 of another vehicle 420 using the broadcast address (step S1606). On the other hand, if the video data transmission request is not input (step S1605: No), the process returns to step S1601 and waits for an instruction to start video recording. [0137] The video data transmission request notification distributed in step SI 606 includes detailed information about the video data desired to be transmitted. As described above, the detailed information includes the shooting location of the video data, the time (time) when the video data was shot, the video data category, the video data title, and the presence / absence of additional information. In addition, when these pieces of information are always common, transmission may be omitted.
[0138] ステップ S1602の撮影力 車両 410の移動を伴いながらおこなわれた場合、詳細 情報のうち映像データの撮影地点情報は、映像を撮影した区間の経路の情報となる 。また、撮影時間の情報は、映像を撮影した時間帯情報となる。この他、車両 410の 走行経路の位置情報を全て送信してもよい。この場合、他のナビゲーシヨン装置 421 において、車両 410の走行経路を全て表示した上で、映像データが存在する区間を 把握することができる。  [0138] Shooting power of step S1602 When this is performed with the movement of the vehicle 410, the shooting point information of the video data in the detailed information is information on the route of the section where the video was shot. The shooting time information is time zone information for shooting the video. In addition, all the position information of the travel route of the vehicle 410 may be transmitted. In this case, the other navigation device 421 can grasp the section where the video data exists after displaying all the travel routes of the vehicle 410.
[0139] また、データに対して送信期限を設けてもよい。たとえば、渋滞情報など、時間の経 過とともに変動する情報は、あまりに古い情報を送信しても情報価値がない。このた め、たとえば、映像データ送信希望通知を送信した後、一定時間経過後はデータ送 信をおこなわな!/、よう設定する。  [0139] Further, a transmission time limit may be set for data. For example, information that fluctuates over time, such as traffic jam information, has no information value even if information that is too old is transmitted. For this reason, for example, after sending a video data transmission request notification, set to send data after a certain period of time! /.
[0140] 一方、特に期限を定めず映像データを送信したいときは、「常設送信」などに設定 できるようにしてもよい。また、たとえば、車両 410, 420などの移動体だけではなぐ 信号機など道路近くの地物にカメラを設置してもよい。この場合も、アクセス期限を定 めず「常設送信」とすれば、ユーザは常に固定した場所の映像データを得ることがで きる。  [0140] On the other hand, when video data is desired to be transmitted without any particular time limit, it may be set to "permanent transmission". In addition, for example, a camera may be installed on a feature near a road such as a traffic light that is not only a moving body such as the vehicles 410 and 420. Also in this case, if “permanent transmission” is set without setting an access time limit, the user can always obtain video data at a fixed location.
[0141] さらに、全ての車両 420に送信される同報アドレスではなぐ特定の基地局内にい る車両 420のみに送信される同報アドレスを用いるなどによって、特定のエリア内に のみ映像データ送信希望通知を配信してもよい。他にも、たとえば、知り合いのダル ープゃ特定のサービスを受けられる端末を持って 、るグループなどを指定できる同 報アドレスを用いてもよい。  [0141] In addition, it is desirable to send video data only within a specific area, such as by using a broadcast address sent only to a vehicle 420 in a specific base station rather than a broadcast address sent to all vehicles 420. Notifications may be distributed. In addition, for example, a broadcast address that can specify a group or the like having a terminal that can receive a specific service if the friend's dull is used may be used.
[0142] ステップ S 1606で映像データ送信希望通知を配信すると、ナビゲーシヨン装置 411 は、他の車両 420のナビゲーシヨン装置 421から映像データ送信要求信号を受信す るまで待機する (ステップ S 1607 : Noのループ)。そして、映像データ送信要求信号 を受信した場合は (ステップ S 1607： Yes)、映像データ送信要求信号を送信した車 両 420のナビゲーシヨン装置 421に、映像データを送信して（ステップ S 1608)、本フ ローチャートによる処理を終了する。 [0142] When the video data transmission request notification is delivered in step S 1606, navigation device 411 waits until a video data transmission request signal is received from navigation device 421 of other vehicle 420 (step S 1607: No). Loop). And the video data transmission request signal Is received (step S 1607: Yes), the video data is transmitted to the navigation device 421 of the vehicle 420 that transmitted the video data transmission request signal (step S 1608), and the processing according to this flowchart is performed. finish.
[0143] なお、送信する映像データを利用するのに必要なプラグインがある場合には、映像 データと合わせて送信する。また、一括送信力ストリーミング送信かの指定がある場 合は、指定に合わせた形式で送信する。 [0143] If there is a plug-in necessary to use the video data to be transmitted, it is transmitted together with the video data. Also, if there is a designation for batch transmission power streaming transmission, it will be sent in a format that matches the designation.
[0144] つぎに、情報を受信する車両 420のナビゲーシヨン装置 421がおこなう処理につい て説明する。図 13は、データを受信する車両のナビゲーシヨン装置のデータ受信処 理の手順を示すフローチャートである。図 13のフローチャートにおいて、ナビゲーショ ン装置 421は、まず、車両 410のナビゲーシヨン装置 411から映像データ送信希望 通知を受信するまで待機する（ステップ S 1701： Noのループ）。  [0144] Next, processing performed by the navigation device 421 of the vehicle 420 that receives information will be described. FIG. 13 is a flowchart showing the procedure of the data reception process of the vehicle navigation device that receives data. In the flowchart of FIG. 13, the navigation device 421 first waits until receiving a video data transmission request notification from the navigation device 411 of the vehicle 410 (step S 1701: No loop).
[0145] 映像データ送信希望通知を受信すると (ステップ S1701： Yes)、ディスプレイ 513 による画面表示やスピーカ 510からの音声出力などによって、受信した通知を出力 する（ステップ S 1702)。図 12のステップ S1606で説明したように、映像データ送信 希望通知には、映像データについての詳細情報が含まれている。ナビゲーシヨン装 置 421は、受信したこれらの情報を出力し、ユーザがデータを受信するか否かの判 断を待つ。すなわち、映像データの送信を求める映像データ送信要求が入力された か否かを判断する (ステップ S 1703)。  [0145] When the video data transmission request notification is received (step S1701: Yes), the received notification is output by screen display by the display 513, audio output from the speaker 510, or the like (step S1702). As described in step S1606 of FIG. 12, the video data transmission request notification includes detailed information about the video data. The navigation device 421 outputs the received information and waits for the user to determine whether to receive data. That is, it is determined whether or not a video data transmission request for transmission of video data has been input (step S 1703).
[0146] ユーザが映像データを受信すると判断し、映像データの送信を求める映像データ 送信要求が入力されると（ステップ S1703 : Yes)、ナビゲーシヨン装置 421は、ナビ ゲーシヨン装置 411に対して、映像データ送信要求信号を返信する (ステップ S1704 )。このとき、映像データの送信形式や長さなどを指定してもよい。ナビゲーシヨン装 置 411の通信用アドレスは、ステップ S1701で受信した映像データ送信希望通知の 送信元アドレスを用いる。  [0146] When it is determined that the user receives video data and a video data transmission request for transmission of video data is input (step S1703: Yes), the navigation device 421 sends a video to the navigation device 411. A data transmission request signal is returned (step S1704). At this time, the transmission format and length of the video data may be specified. As the communication address of the navigation device 411, the transmission source address of the video data transmission request notification received in step S1701 is used.
[0147] そして、送信要求した映像データを受信するまで待機して (ステップ S 1705： Noの ループ）、映像データを受信すると (ステップ S1705 : Yes)、本フローチャートによる 処理を終了する。一方、ステップ S1703において、映像データ送信要求が入力され ない場合は（ステップ S1703 :No)、ステップ S1701に戻り、以降の処理を繰り返す。 [0148] ここで、ステップ S1702の映像データ送信希望通知の出力形態について説明する 。図 14は、映像データ送信希望通知の画面表示の一例を示す説明図である。図 14 の説明図において、ナビゲーシヨン装置 421のディスプレイ 513には、映像データ送 信希望通知の新着メッセージ 1801が表示されている。 [0147] Then, it waits until the video data requested to be transmitted is received (step S1705: No loop). When video data is received (step S1705: Yes), the processing according to this flowchart ends. On the other hand, if a video data transmission request is not input in step S1703 (step S1703: No), the process returns to step S1701 and the subsequent processing is repeated. Here, the output form of the video data transmission request notification in step S1702 will be described. FIG. 14 is an explanatory diagram showing an example of a screen display of a video data transmission request notification. In the explanatory diagram of FIG. 14, a new message 1801 of a video data transmission request notification is displayed on the display 513 of the navigation device 421.
[0149] 新着メッセージ 1801には、新しく映像データ送信希望通知がなされたデータの送 信者情報 1811、位置情報 1812、カテゴリー情報 1813、受信日時情報 1814、ァク セス期限情報 1815、付加情報の有無情報 1816が表示される。送信者情報 1811は 、たとえば車両 410, 420の IDなど、映像データの送信元を特定する情報である。位 置情報 1812は、送信される映像データが取得された位置を示す。  [0149] The new message 1801 includes the sender information 1811, the location information 1812, the category information 1813, the reception date and time information 1814, the access time limit information 1815, and the presence / absence information of the additional information for which the video data transmission request notification has been newly made. 1816 is displayed. The sender information 1811 is information that identifies the transmission source of the video data, such as the IDs of the vehicles 410 and 420, for example. The position information 1812 indicates the position where the transmitted video data is acquired.
[0150] カテゴリー情報 1813は、情報の内容がどのようなカテゴリーに属するかを示す。受 信日時情報 1814は、映像データ送信希望通知を受信した日時を示す。アクセス期 限情報 1815は、送信者が設定した映像データの送信期限を示す。付加情報の有無 情報 1816は、映像データに関する付加情報の有無を示す。これらの情報は、映像 データ送信希望通知に含まれて 、る。  [0150] Category information 1813 indicates what category the content of the information belongs to. Reception date / time information 1814 indicates the date / time when the video data transmission request notification is received. Access period information 1815 indicates the transmission period of the video data set by the sender. Presence / absence of additional information Information 1816 indicates the presence / absence of additional information regarding video data. This information is included in the video data transmission request notification.
[0151] さらに、既に受信した映像データ送信希望通知の一覧である受信可能データ一覧 1821が表示される。受信可能データ一覧 1821に表示されるのは、新着メッセージ 1 801同様、送信者情報 1831、位置情報 1832、カテゴリー情報 1833、受信日時情 報 1834、アクセス期限情報 1835、付加情報の有無情報 1836が表示される。  [0151] Furthermore, a receivable data list 1821 which is a list of video data transmission request notifications already received is displayed. Receivable data list 1821 displays sender information 1831, location information 1832, category information 1833, reception date and time information 1834, access time limit information 1835, and presence / absence information 1836 as well as new message 1 801. Is done.
[0152] 図示した例では、受信日時が新 、順にデータ一覧が表示されて!、るが、それぞ れの情報によってデータをソートあるいは選択することができる。また、検索入力ボッ タス 1841にキーワードを入力したり、ジャンル選択ボックス 1842からデータのジヤン ルを選択したりして、データを絞り込むことができる。なお、アクセス期限が経過したデ ータについては、受信可能データ一覧 1821から削除される。  [0152] In the example shown in the figure, the data list is displayed in order from the newest reception date and time !, but the data can be sorted or selected according to the respective information. In addition, data can be narrowed down by entering a keyword in the search input button 1841 or selecting a data genre from the genre selection box 1842. Data for which the access time limit has passed is deleted from the receivable data list 1821.
[0153] また、「地図上に表示」ボタン 1851を押下すると、ナビゲーシヨン装置 421に記憶さ れている地図情報上に、受信した映像データ送信希望通知の位置情報 1812, 183 2が示す地点を描画して表示する。これにより、映像データの送信要求をし得る地点 を、ユーザに対して直感的に把握させることができる。  [0153] When the "display on map" button 1851 is pressed, the points indicated by the position information 1812, 183 2 of the received video data transmission request notification are displayed on the map information stored in the navigation device 421. Draw and display. This makes it possible for the user to intuitively grasp the points at which video data transmission requests can be made.
[0154] 地図上に地点情報を表示する場合、映像データ送信希望通知を送信した車両 41 0の映像データの地点情報、すなわち、映像データが撮影された地点にアイコンで 表示させる。また、撮影された映像データの数が多い場合や、映像データが撮影さ れた地点が一定の区間を有する場合 (すなわち、移動しながら撮影した場合)、地図 上の経路を塗りつぶしていく（道塗り）こととしてもよい。これにより、地点情報の送信 元力 送信される映像データがどの地点の映像かをより正確に把握することができる [0154] When displaying the location information on the map, the vehicle that transmitted the video data transmission request notification 41 The point information of the video data of 0, that is, the icon is displayed at the point where the video data was shot. Also, if the number of video data captured is large, or if the location where the video data was captured has a certain section (that is, when shooting while moving), the route on the map will be filled (the road It is good also as painting. This makes it possible to more accurately grasp the location of the video data to be transmitted.
[0155] さらに、「経路上のみ表示」ボタン 1852を押下すると、ナビゲーシヨン装置 421で設 定された目的地点までの経路上の映像データ送信要求信号のみを表示する。これ により、ユーザは、自車がこれ力 走行する経路上の地点情報のみを表示させ、現在 の状況の映像データを得ることができる。 Further, when the “display only on route” button 1852 is pressed, only the video data transmission request signal on the route to the destination point set by the navigation device 421 is displayed. As a result, the user can display only the point information on the route on which the vehicle travels and can obtain video data of the current situation.
[0156] 以上説明したように、本実施例に力かるデータ送受信システムによれば、相互に通 信可能な複数の通信端末力もなる通信ネットワークにお 、て、車両 410で取得され た現在位置に関するデータを、他の車両 420を含む他の通信端末に送信する。その 際、映像データ送信希望通知によって、映像データの取得場所や取得日時などを配 信すること〖こよって、他の車両 420の搭乗者に、映像データを送信要求するか否かを より的確に判断させることができる。  [0156] As described above, according to the data transmission / reception system related to the present embodiment, in the communication network having a plurality of communication terminals capable of communicating with each other, the current position acquired by the vehicle 410 is related. Data is transmitted to other communication terminals including other vehicles 420. At that time, by sending the video data transmission request notification, the video data acquisition location and the acquisition date and time, etc. are transmitted, so that it is more accurately determined whether or not to request transmission of video data to other vehicle 420 passengers. Judgment can be made.
[0157] また、車両 410の走行経路のうち任意の場所を選んで撮影でき、その中から車両 4 20の搭乗者が所望する箇所の映像データを選択送信する。このため、車両 410の 現在位置のみの映像を送信する場合と比べ、車両 420の搭乗者が必要とする映像 データが存在する可能性を高めることができる。  [0157] In addition, an arbitrary place can be selected from the travel route of the vehicle 410, and video data of a portion desired by the passenger of the vehicle 420 is selected and transmitted. Therefore, it is possible to increase the possibility that the video data required by the passenger of the vehicle 420 exists as compared with the case where the video of only the current position of the vehicle 410 is transmitted.
[0158] また、映像データの送信期限を定めることによって、時間の経過とともに情報価値 が薄れる映像データを、他の車両 420に送信するのを回避することができる。このよう に、必要な映像データであるか否かの判断材料を提供することによって、ネットワーク 上の膨大な量の情報から自己の必要とする映像データを適切に判断することができ る。  [0158] In addition, by determining the video data transmission time limit, it is possible to avoid transmitting video data whose information value is diminished over time to another vehicle 420. In this way, by providing the information for determining whether or not the video data is necessary, it is possible to appropriately determine the video data that the user needs from a huge amount of information on the network.
[0159] なお、上述した実施例では、車両 410, 420どうしで映像データの送受信をおこな つたが、ネットワーク上に映像データ送受信用のサーバを設置して、データを一元管 理してもよい。たとえば、車両 410の搭乗者が送信したい映像データをサーバにアツ プすると同時に、サーバから映像データ送信希望通知を他の車両 420に配信する。 映像データ送信希望通知を受けた他の車両 420の搭乗者は、映像データを利用す る都度または定期的にサーバにアクセスし、必要な映像データをダウンロードする。 または、サーバにデータの送信要求をおこなってもよい。 [0159] In the above-described embodiment, video data is transmitted and received between the vehicles 410 and 420. However, a server for video data transmission / reception may be installed on the network to centrally manage the data. . For example, the video data that the passenger of vehicle 410 wants to send is uploaded to the server. At the same time, the server sends a video data transmission request notification to the other vehicle 420. The passenger of the other vehicle 420 having received the video data transmission request notification accesses the server every time the video data is used or periodically downloads the necessary video data. Alternatively, a data transmission request may be made to the server.
[0160] 以上のような構成によれば、さらに、映像データの通信量や送受信状況をサーバに よって一元管理することができる。また、直接データの送受信をおこなわないため、車 両 410, 420の通信用アドレスを、相互に知られることがなぐ個人情報を保護するこ とがでさる。 [0160] According to the configuration as described above, the communication amount and transmission / reception status of the video data can be centrally managed by the server. In addition, since the data is not directly transmitted and received, it is possible to protect personal information where the communication addresses of the vehicles 410 and 420 cannot be known to each other.
[0161] なお、本実施の形態で説明したデータ送信方法、データ受信方法は、あらかじめ 用意されたプログラムをパーソナル 'コンピュータやワークステーションなどのコンビュ ータで実行することにより実現することができる。このプログラムは、ハードディスク、フ レキシブルディスク、 CD-ROM, MO、 DVDなどのコンピュータで読み取り可能な 記録媒体に記録され、コンピュータによって記録媒体力 読み出されることによって 実行される。またこのプログラムは、インターネットなどのネットワークを介して配布す ることが可能な伝送媒体であってもよ 、。  Note that the data transmission method and data reception method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, or a DVD, and is executed by being read by the computer. The program may be a transmission medium that can be distributed through a network such as the Internet.

Claims

請求の範囲 The scope of the claims
[1] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、  [1] A communication terminal in a communication network that has multiple communication terminals that can communicate with each other.
前記通信端末の現在地点の地点情報を前記通信端末以外の他の通信端末に配 信する配信手段と、  Distribution means for distributing the location information of the current location of the communication terminal to a communication terminal other than the communication terminal;
前記配信手段によって前記地点情報が配信された結果、前記現在地点に関する 映像データの送信要求信号を前記他の通信端末から受信する受信手段と、 前記受信手段によって送信要求信号が受信された場合、前記現在地点に関する 映像データを取得する取得手段と、  As a result of the distribution of the point information by the distribution unit, a reception unit that receives a transmission request signal of video data related to the current point from the other communication terminal, and a transmission request signal received by the reception unit, An acquisition means for acquiring video data relating to the current location;
前記取得手段によって取得された映像データを前記送信要求信号を送信した通 信端末に送信する送信手段と、  Transmitting means for transmitting the video data acquired by the acquiring means to the communication terminal that transmitted the transmission request signal;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[2] 前記取得手段は、  [2] The acquisition means includes:
前記受信手段によって送信要求信号が受信されたときに、前記映像データの取得 を開始することを特徴とする請求項 1に記載の通信端末。  2. The communication terminal according to claim 1, wherein acquisition of the video data is started when a transmission request signal is received by the receiving means.
[3] 前記取得手段は、 [3] The acquisition means includes:
前記映像データの取得の開始後、所定時間経過後に取得を停止することを特徴と する請求項 1に記載の通信端末。  2. The communication terminal according to claim 1, wherein the acquisition is stopped after a predetermined time has elapsed after the start of acquisition of the video data.
[4] 前記配信手段による配信からの経過時間と、前記受信手段による前記送信要求信 号の受信の有無とに基づ!ヽて、前記映像データを取得するか否かを判断する判断 手段を備え、 [4] Judgment means for judging whether or not to acquire the video data based on an elapsed time from delivery by the delivery means and whether or not the transmission request signal is received by the reception means. Prepared,
前記取得手段は、  The acquisition means includes
前記判断手段によって判断された判断結果に基づ!ヽて、前記映像データを取得す ることを特徴とする請求項 1〜3のいずれか一つに記載の通信端末。  4. The communication terminal according to claim 1, wherein the video data is acquired based on a determination result determined by the determination unit.
[5] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、 [5] A communication terminal in a communication network that has multiple communication terminals capable of communicating with each other.
前記通信端末以外の他の通信端末の現在地点の地点情報を受信する第 1の受信 手段と、 前記第 1の受信手段によって受信された地点情報を出力する出力手段と、 前記出力手段によって前記地点情報が出力された場合、前記他の通信端末の現 在地点に関する映像データの送信要求の入力を受け付ける入力手段と、 A first receiving means for receiving point information of a current point of a communication terminal other than the communication terminal; An output means for outputting the spot information received by the first receiving means; and when the spot information is outputted by the output means, an input of a video data transmission request regarding the current spot of the other communication terminal is input. Input means to accept;
前記入力手段によって前記送信要求の入力があった場合、前記現在地点に関す る映像データの送信要求信号を送信する送信手段と、  When the transmission request is input by the input means, a transmission means for transmitting a transmission request signal of video data relating to the current location;
前記送信手段によって前記送信要求信号が送信された結果、前記他の通信端末 から前記現在地点に関する映像データを受信する第 2の受信手段と、  Second reception means for receiving video data relating to the current location from the other communication terminal as a result of transmission of the transmission request signal by the transmission means;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[6] 前記第 2の受信手段は、 [6] The second receiving means includes:
前記送信要求信号を送信したときの前記現在地点に関する映像データを受信する ことを特徴とする請求項 5に記載の通信端末。  6. The communication terminal according to claim 5, wherein video data relating to the current location when the transmission request signal is transmitted is received.
[7] 前記第 2の受信手段は、 [7] The second receiving means includes
前記送信要求信号を送信してから所定時間内における前記現在地点に関する映 像データを受信することを特徴とする請求項 5に記載の通信端末。  6. The communication terminal according to claim 5, wherein video data relating to the current location within a predetermined time after transmitting the transmission request signal is received.
[8] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、 [8] A communication terminal in a communication network that has multiple communication terminals capable of communicating with each other.
映像データの撮像入力を受け付ける入力手段と、  An input means for receiving imaging input of video data;
前記入力手段によって撮像入力された場合、前記映像データを、当該映像データ の撮像中における前記通信端末の地点情報とともに取得する取得手段と、  An acquisition unit configured to acquire the video data together with the location information of the communication terminal during imaging of the video data when input by the input unit;
前記取得手段によって取得された地点情報を、前記他の通信端末に配信する配 信手段と、  Distribution means for distributing the point information acquired by the acquisition means to the other communication terminals;
前記配信手段によって前記地点情報が配信された結果、前記映像データの送信 要求信号を、前記他の通信端末から受信する受信手段と、  As a result of the distribution of the point information by the distribution unit, a reception unit that receives the transmission request signal of the video data from the other communication terminal;
前記受信手段によって送信要求信号が受信された場合、前記送信要求信号を送 信した通信端末に前記映像データを送信する送信手段と、  A transmission means for transmitting the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received by the reception means;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[9] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、 映像データの撮像入力を受け付ける入力手段と、 [9] A communication terminal in a communication network that has multiple communication terminals that can communicate with each other. An input means for receiving imaging input of video data;
前記入力手段によって撮像入力された場合、前記映像データを、当該映像データ の撮像時間に関する情報とともに取得する取得手段と、  An acquisition unit configured to acquire the video data together with information related to an imaging time of the video data when being input by the input unit;
前記取得手段によって取得された撮像時間に関する情報を、前記他の通信端末に 配信する配信手段と、  Distribution means for distributing information on the imaging time acquired by the acquisition means to the other communication terminal;
前記配信手段によって前記地点情報が配信された結果、前記映像データの送信 要求信号を、前記他の通信端末から受信する受信手段と、  As a result of the distribution of the point information by the distribution unit, a reception unit that receives the transmission request signal of the video data from the other communication terminal;
前記受信手段によって送信要求信号が受信された場合、前記送信要求信号を送 信した通信端末に前記映像データを送信する送信手段と、  A transmission means for transmitting the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received by the reception means;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[10] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、  [10] A communication terminal in a communication network that has multiple communication terminals that can communicate with each other.
映像データの撮像入力を受け付ける入力手段と、  An input means for receiving imaging input of video data;
前記入力手段によって撮像入力された場合、前記映像データを、当該映像データ の撮像中における前記通信端末の速度情報とともに取得する取得手段と、  An acquisition unit configured to acquire the video data together with speed information of the communication terminal during imaging of the video data when imaged and input by the input unit;
前記取得手段によって取得された速度情報を、前記他の通信端末に配信する配 信手段と、  Distribution means for distributing the speed information acquired by the acquisition means to the other communication terminals;
前記配信手段によって前記速度情報が配信された結果、前記映像データの送信 要求信号を、前記他の通信端末から受信する受信手段と、  Receiving means for receiving the transmission request signal of the video data from the other communication terminal as a result of the speed information being delivered by the delivery means;
前記受信手段によって送信要求信号が受信された場合、前記送信要求信号を送 信した通信端末に前記映像データを送信する送信手段と、  A transmission means for transmitting the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received by the reception means;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[11] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、  [11] A communication terminal in a communication network that has multiple communication terminals capable of communicating with each other.
前記通信端末以外の他の通信端末により撮像された映像データの撮像地点情報 を受信する第 1の受信手段と、  First receiving means for receiving imaging point information of video data captured by a communication terminal other than the communication terminal;
前記第 1の受信手段によって受信された撮像地点情報を出力する出力手段と、 前記出力手段によって前記撮像地点情報が出力された場合、前記映像データの 送信要求の入力を受け付ける入力手段と、 An output means for outputting imaging point information received by the first receiving means; and when the imaging point information is output by the output means, An input means for receiving an input of a transmission request;
前記入力手段によって前記送信要求の入力があった場合、前記映像データの送 信要求信号を送信する送信手段と、  A transmission means for transmitting a transmission request signal of the video data when the transmission request is input by the input means;
前記送信手段によって前記送信要求信号が送信された結果、前記他の通信端末 から前記映像データを受信する第 2の受信手段と、  Second reception means for receiving the video data from the other communication terminal as a result of transmission of the transmission request signal by the transmission means;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[12] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、 [12] A communication terminal in a communication network that has multiple communication terminals capable of communicating with each other.
前記通信端末以外の他の通信端末により撮像された映像データの撮像時間情報 を受信する第 1の受信手段と、  First receiving means for receiving imaging time information of video data captured by a communication terminal other than the communication terminal;
前記第 1の受信手段によって受信された撮像時間情報を出力する出力手段と、 前記出力手段によって前記撮像時間情報が出力された場合、前記映像データの 送信要求の入力を受け付ける入力手段と、  An output unit that outputs the imaging time information received by the first receiving unit; and an input unit that receives an input of the transmission request for the video data when the imaging unit outputs the imaging time information;
前記入力手段によって前記送信要求の入力があった場合、前記映像データの送 信要求信号を送信する送信手段と、  A transmission means for transmitting a transmission request signal of the video data when the transmission request is input by the input means;
前記送信手段によって前記送信要求信号が送信された結果、前記他の通信端末 から前記映像データを受信する第 2の受信手段と、  Second reception means for receiving the video data from the other communication terminal as a result of transmission of the transmission request signal by the transmission means;
を備えることを特徴とする通信端末。  A communication terminal comprising:
[13] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末であつ て、 [13] A communication terminal in a communication network that has multiple communication terminals capable of communicating with each other.
前記通信端末以外の他の通信端末の速度情報を受信する第 1の受信手段と、 前記第 1の受信手段によって受信された速度情報を出力する出力手段と、 前記出力手段によって前記速度情報が出力された場合、当該速度情報に関連付 けられている映像データの送信要求の入力を受け付ける入力手段と、  A first receiving means for receiving speed information of a communication terminal other than the communication terminal; an output means for outputting speed information received by the first receiving means; and the speed information is output by the output means. An input means for receiving an input of a transmission request for video data associated with the speed information,
前記入力手段によって前記送信要求の入力があった場合、前記映像データの送 信要求信号を送信する送信手段と、  A transmission means for transmitting a transmission request signal of the video data when the transmission request is input by the input means;
前記送信手段によって前記送信要求信号が送信された結果、前記他の通信端末 から前記映像データを受信する第 2の受信手段と、 を備えることを特徴とする通信端末。 Second reception means for receiving the video data from the other communication terminal as a result of transmission of the transmission request signal by the transmission means; A communication terminal comprising:
[14] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末を用い るデータ送信方法であって、  [14] A data transmission method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other,
前記通信端末の現在地点の地点情報を前記通信端末以外の他の通信端末に配 信する配信工程と、  A distribution step of distributing the location information of the current location of the communication terminal to a communication terminal other than the communication terminal;
前記配信工程によって前記地点情報が配信された結果、前記現在地点に関する 映像データの送信要求信号を前記他の通信端末力 受信する受信工程と、 前記受信工程によって送信要求信号が受信された場合、前記現在地点に関する 映像データを取得する取得工程と、  As a result of the distribution of the point information by the distribution step, a reception step of receiving the transmission request signal of the video data related to the current point is received by the other communication terminal, and a transmission request signal is received by the reception step, An acquisition process to acquire video data about the current location,
前記取得工程によって取得された映像データを前記送信要求信号を送信した通 信端末に送信する送信工程と、  A transmission step of transmitting the video data acquired by the acquisition step to a communication terminal that has transmitted the transmission request signal;
を含むことを特徴とするデータ送信方法。  A data transmission method comprising:
[15] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末を用い るデータ受信方法であって、 [15] A data reception method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other,
前記通信端末以外の他の通信端末の現在地点の地点情報を受信する第 1の受信 工程と、  A first receiving step of receiving location information of a current location of a communication terminal other than the communication terminal;
前記第 1の受信工程によって受信された地点情報を出力する出力工程と、 前記出力工程によって前記地点情報が出力された場合、前記他の通信端末の現 在地点に関する映像データの送信要求の入力を受け付ける入力工程と、  An output step for outputting the location information received in the first reception step; and when the location information is output in the output step, an input of a transmission request for video data relating to the current location of the other communication terminal is received. An input process to accept;
前記入力工程によって前記送信要求の入力があった場合、前記現在地点に関す る映像データの送信要求信号を送信する送信工程と、  A transmission step of transmitting a video data transmission request signal related to the current location when the transmission request is input in the input step;
前記送信工程によって前記送信要求信号が送信された結果、前記他の通信端末 力 前記現在地点に関する映像データを受信する第 2の受信工程と、  As a result of the transmission request signal being transmitted by the transmission step, a second reception step of receiving video data related to the current location as a result of the other communication terminal;
を含むことを特徴とするデータ受信方法。  A data receiving method comprising:
[16] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末を用い るデータ送信方法であって、 [16] A data transmission method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other,
映像データの撮像入力を受け付ける入力工程と、  An input process for receiving imaging input of video data;
前記入力工程によって撮像入力された場合、前記映像データを、当該映像データ の撮像中における前記通信端末の地点情報とともに取得する取得工程と、 前記取得工程によって取得された地点情報を、前記他の通信端末に配信する配 信工程と、 When the image is input by the input step, the video data is converted into the video data. An acquisition step of acquiring together with the point information of the communication terminal during imaging, a distribution step of distributing the point information acquired by the acquisition step to the other communication terminals,
前記配信工程によって前記地点情報が配信された結果、前記映像データの送信 要求信号を、前記他の通信端末から受信する受信工程と、  As a result of the distribution of the point information by the distribution step, a reception step of receiving the transmission request signal of the video data from the other communication terminal;
前記受信工程によって送信要求信号が受信された場合、前記送信要求信号を送 信した通信端末に前記映像データを送信する送信工程と、  A transmission step of transmitting the video data to a communication terminal that has transmitted the transmission request signal when a transmission request signal is received by the reception step;
を含むことを特徴とするデータ送信方法。  A data transmission method comprising:
[17] 相互に通信可能な複数の通信端末力 なる通信ネットワーク内の通信端末を用い るデータ受信方法であって、 [17] A data receiving method using a communication terminal in a communication network having a plurality of communication terminals capable of communicating with each other,
前記通信端末以外の他の通信端末により撮像された映像データの撮像地点情報 を受信する第 1の受信工程と、  A first receiving step of receiving imaging point information of video data captured by a communication terminal other than the communication terminal;
前記第 1の受信工程によって受信された撮像地点情報を出力する出力工程と、 前記出力工程によって前記撮像地点情報が出力された場合、前記映像データの 送信要求の入力を受け付ける入力工程と、  An output step of outputting the imaging point information received by the first reception step; and an input step of accepting an input of a transmission request for the video data when the imaging point information is output by the output step;
前記入力工程によって前記送信要求の入力があった場合、前記映像データの送 信要求信号を送信する送信工程と、  A transmission step of transmitting a transmission request signal of the video data when the transmission request is input in the input step;
前記送信工程によって前記送信要求信号が送信された結果、前記他の通信端末 力 前記映像データを受信する第 2の受信工程と、  As a result of the transmission request signal being transmitted by the transmission step, the second reception step of receiving the video data from the other communication terminal;
を含むことを特徴とするデータ受信方法。  A data receiving method comprising:
[18] 請求項 14または 16に記載のデータ送信方法をコンピュータに実行させることを特 徴とするデータ送信プログラム。 [18] A data transmission program characterized by causing a computer to execute the data transmission method according to claim 14 or 16.
[19] 請求項 15または 17に記載のデータ受信方法をコンピュータに実行させることを特 徴とするデータ受信プログラム。 [19] A data receiving program characterized by causing a computer to execute the data receiving method according to claim 15 or 17.
[20] 請求項 18に記載のデータ送信プログラムを記録したコンピュータに読み取り可能な 記録媒体。 [20] A computer-readable recording medium on which the data transmission program according to claim 18 is recorded.
[21] 請求項 19に記載のデータ受信プログラムを記録したコンピュータに読み取り可能な 記録媒体。  [21] A computer-readable recording medium on which the data receiving program according to claim 19 is recorded.
PCT/JP2006/317774 2005-09-26 2006-09-07 Communication terminal, data transmitting method, data receiving method, data transmitting program, data receiving program, and recording medium WO2007034684A1 (en)

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