WO2008010408A1 - dispositif de navigation, procédé de navigation, programme de navigation et support d'enregistrement lisible par un ordinateur - Google Patents

dispositif de navigation, procédé de navigation, programme de navigation et support d'enregistrement lisible par un ordinateur Download PDF

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Publication number
WO2008010408A1
WO2008010408A1 PCT/JP2007/063265 JP2007063265W WO2008010408A1 WO 2008010408 A1 WO2008010408 A1 WO 2008010408A1 JP 2007063265 W JP2007063265 W JP 2007063265W WO 2008010408 A1 WO2008010408 A1 WO 2008010408A1
Authority
WO
WIPO (PCT)
Prior art keywords
traffic
traffic jam
information
navigation
increase
Prior art date
Application number
PCT/JP2007/063265
Other languages
English (en)
Japanese (ja)
Inventor
Hiroaki Shibasaki
Motohiko Takayanagi
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
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2008010408A1 publication Critical patent/WO2008010408A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
    • G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
    • G09B29/003—Maps
    • G09B29/006—Representation of non-cartographic information on maps, e.g. population distribution, wind direction, radiation levels, air and sea routes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
    • G09B29/10—Map spot or coordinate position indicators; Map reading aids
    • G09B29/106—Map spot or coordinate position indicators; Map reading aids using electronic means

Definitions

  • the present invention relates to a navigation device that acquires and displays traffic jam information, a navigation method, a navigation program, and a computer-readable recording medium.
  • use of the present invention is not limited to the above-described navigation apparatus, navigation method, navigation program, and computer-readable recording medium. Background art
  • the navigation device scrolls a map around the vehicle position according to the travel of the vehicle, searches for a guidance route to the destination, and displays it on the map to show the driver the destination. I will guide you through.
  • VICS information road traffic information
  • vies road traffic information communication system
  • beacons such as optical beacons and radio wave beacons are used as means for communicating powerful VICS information (for example, see Patent Document 1 below).
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. 2006-3292
  • the VICS information provides the current traffic jam information, and there is an example of the problem that the traffic jam is increasing or the power is decreasing.
  • traffic congestion on the road tends to increase after it has been determined that the traffic jam is not long, the problem is that it will be involved in more traffic than expected when arriving on the road.
  • the traffic on the road tends to decrease, the road is selected even though it has been avoided. The problem is that it was better.
  • the navigation device includes an acquisition unit that acquires current traffic jam information and past traffic jam information about a predetermined location, current traffic jam information acquired by the acquisition unit, and Comparing means for comparing the past traffic jam information to obtain the increase / decrease tendency of the traffic jam, and a notifying means for notifying the increase / decrease tendency obtained by the comparison means.
  • the navigation method according to the invention of claim 5 is obtained by the acquisition step of acquiring the current traffic jam information and the past traffic jam information at a predetermined location, and the acquisition step. It includes a comparison step of comparing current traffic information and past traffic information to obtain the increase / decrease tendency of the traffic jam, and a notification step of notifying the increase / decrease trend obtained by the comparison step.
  • a navigation program according to the invention of claim 6 causes a computer to execute the navigation method according to claim 5.
  • the navigation program described in 6 is recorded.
  • FIG. 1 is a block diagram showing a functional configuration of a navigation device that is useful for an embodiment of the present invention.
  • FIG. 2 is a flowchart showing the processing of the navigation method which is effective in the embodiment of the present invention.
  • FIG. 3 is a block diagram showing a hardware configuration of the navigation device.
  • FIG. 4 is an explanatory diagram for explaining a display example when the increase / decrease in traffic congestion is displayed.
  • FIG. 5 is a flowchart for explaining the process of determining and presenting the increase / decrease tendency of the traffic jam information.
  • FIG. 1 is a block diagram showing a functional configuration of a navigation device that works according to an embodiment of the present invention.
  • the navigation apparatus according to this embodiment includes an acquisition unit 101, a comparison unit 102, and a notification unit 103.
  • the acquisition unit 101 acquires current traffic jam information and past traffic jam information for a predetermined location.
  • the past traffic information is not limited to one, but it is possible to obtain traffic information at many points in time in a time series, and to integrate the time series information into past traffic information.
  • the acquisition unit 101 can acquire the current traffic jam information via the beacon, and also holds the acquired current traffic jam information and collects the traffic jam information at the same point after the time has elapsed. When you get it, you can keep it! / And get the traffic information as past traffic information.
  • the comparison unit 102 compares the current traffic jam information acquired by the acquisition unit 101 and the past traffic jam information, and obtains an increase / decrease tendency of the traffic jam. Specifically, the comparison unit 102 can also obtain an increasing / decreasing tendency of the traffic jam length at the predetermined location by comparing the traffic jam lengths at the predetermined location. The comparison unit 102 can also obtain an increase / decrease tendency of the traffic congestion increase rate at the predetermined location by comparing the traffic congestion increase rate at the predetermined location.
  • the notification unit 103 notifies the increase / decrease tendency obtained by the comparison unit 102.
  • This increase / decrease trend can be notified via the display screen of the navigation device, and information such as increased traffic, decreased traffic, and no change in traffic conditions is reproduced by voice. That's right.
  • FIG. 2 is a flowchart showing the processing of the navigation method that is useful for the embodiment of the present invention.
  • the acquisition unit 101 acquires current traffic jam information for a predetermined location (step S201).
  • the acquiring unit 101 acquires past traffic jam information about a predetermined location (step S202). That is, the past traffic jam information is acquired.
  • the comparison unit 102 presents the current traffic jam information and the past traffic jam acquired by the acquisition unit 101.
  • the information is compared to obtain the increase / decrease tendency of the traffic jam (step S203).
  • the notification unit 103 notifies the increase / decrease tendency of the traffic jam (step S204).
  • FIG. 3 is a block diagram showing a hardware configuration of the navigation device.
  • the navigation apparatus to which the resource management apparatus of the embodiment is applied includes a CPU 301, a ROM 302, a RAM (memory) 303, a magnetic disk drive 304, a magnetic disk 305, and an optical disk drive 306.
  • Various sensors 317 and a beacon receiver 318 are provided.
  • Each component 301 to 318 is connected by a bus 320.
  • the CPU 301 governs overall control of the navigation device.
  • the ROM 302 records programs such as a boot program and a navigation program.
  • the RAM 303 is used as a work area for the CPU 301.
  • the magnetic disk drive 304 controls reading and writing of data with respect to the magnetic disk 305 according to the control of the CPU 301.
  • the magnetic disk 305 records data written under the control of the magnetic disk drive 304.
  • the magnetic disk 305 for example, HD (node disk) or FD (flexible disk) can be used.
  • the optical disk drive 306 controls reading and writing of data to the optical disk 307 according to the control of the CPU 301.
  • the optical disc 307 is a detachable recording medium from which data is read according to the control of the optical disc drive 306.
  • the optical disk 307 can also use a writable recording medium.
  • the removable recording medium may be a power MO of the optical disc 307, a memory card, or the like.
  • Map data used for route search and route guidance.
  • Map data includes buildings, rivers, and the ground It has background data that represents features (features) such as faces and road shape data that represents the shape of the road, and is drawn in two or three dimensions on the display screen of the display 314.
  • features features
  • road shape data that represents the shape of the road
  • the audio IZF 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output.
  • the voice received by the microphone 309 is AZD converted in the voice IZF308.
  • sound is output from the speaker 310. Note that the sound input from the microphone 309 can be recorded on the magnetic disk 305 or the optical disk 307 as sound data.
  • Examples of the input device 311 include a remote controller, a keyboard, a mouse, and a touch panel that are provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like. Furthermore, the input device 311 can be connected to other information processing terminals such as a digital camera or a mobile phone terminal to input / output data.
  • the video IZF 312 is connected to a video input camera 313 and a video output display 314. Specifically, the video IZF312 is output from, for example, a graphic controller that controls the entire display 314, 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 image data to be displayed, it is configured by a control IC or the like that controls display of the display 314.
  • VRAM Video RAM
  • the camera 313 captures images inside and outside the vehicle and outputs them as image data.
  • An image captured by the camera 313 can be recorded on the magnetic disk 305 or the optical disk 307 as image data.
  • the display 314 displays icons, cursors, menus, windows, or various data such as characters and images.
  • this display 314 for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.
  • Communication IZF 315 is connected to a network via radio and functions as an interface between the navigation device and CPU 301.
  • the communication I / F 315 is further connected to a communication network such as the Internet via wireless and functions as an interface between the communication network and the CPU 301.
  • Communication networks include LANs, WANs, public line networks, mobile phone networks, and the like.
  • the communication IZF 315 is composed of, for example, an FM tuner, a VICS / beacon receiver, a wireless navigation device, and other navigation devices, and acquires road traffic information such as traffic congestion and traffic regulations distributed from the VICS center.
  • VICS is a registered trademark.
  • the GPS unit 316 receives radio waves from GPS satellites and outputs information related to the position of the vehicle on which the navigation device is mounted.
  • the output information of the GPS unit 316 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 317 described later.
  • the information indicating the current location is information specifying one point on the map data, for example, latitude'longitude and altitude.
  • Various sensors 317 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor and an angular velocity sensor.
  • the output values of the various sensors 317 are used by the CPU 301 to calculate the current location of the vehicle and to measure the amount of change in speed and direction.
  • the beacon receiver 318 receives the beacon signal and takes it into the navigation device as VICS information.
  • This VICS information is provided by road traffic information communication system (VICS) such as traffic congestion, accidents, regulations, etc. It is displayed in real time on the navigation device.
  • Powerful VICS information is currently provided by beacons such as optical beacons and radio beacons.
  • the communication area of each communication means is 60 to 70 m per radio beacon and 3.5 m per optical beacon. .
  • FIG. 4 is an explanatory diagram for explaining a display example when the increase / decrease of the traffic jam is displayed.
  • This curve shows the road on which the vehicle travels, and the vehicle travels in this order in the order of point 401, point 402, and point 403. For example, if there is a traffic jam between the point 401 and the point 402, that is, in the section 410, this is displayed at that time, and the past traffic information is displayed.
  • FIG. 5 is a flowchart for explaining processing for discriminating and presenting an increase / decrease tendency of traffic jam information.
  • traffic jam information is acquired (step S501). Specifically, traffic jam information such as VICS is continuously acquired from radio waves and beacons, but the number of samples (or time) required for judgment is retained retroactively. Past data that exceeds the number of samples (or time) required for judgment may be deleted.
  • a point designation is acquired (step S502). In other words, it acquires the designation of the section or area for which traffic information is to be obtained. This point can be specified by the user. There are the following methods for selecting the designated point. (1) Select a specific location from the traffic congestion location displayed on the map using the touch panel or moving the cursor. (2) All traffic congestion points displayed on the screen are designated as designated points. (3) Designate a traffic jam spot on or near the set route as a designated point. (4) Designate all traffic congestion points with information as designated points.
  • step S503 data in which the current force at the designated point is also traced back a predetermined number of times is acquired.
  • the traffic information at the specified point is acquired.
  • step S504 it is determined whether or not the ratio of data in which the congestion length is greater than the previous data is greater than or equal to a predetermined value.
  • the following methods can be used to determine whether traffic congestion is increasing or clearing. In other words, regarding the congestion information at the designated point, the following is judged as an increasing trend, and the direction of resolution is judged as the opposite.
  • the ratio of the data whose required time has increased from the previous data is greater than or equal to a predetermined value.
  • (b-1) Compare the data going back a certain number of times (or hours) from the present, and the increase rate of congestion length has increased over time in all data, or the increase rate of congestion length has The ratio of data that is increasing from the data is more than a predetermined value.
  • (b 2) Compare the data retroactively for a predetermined number of times (or hours) from the present, and the increase rate of the average speed in all the data is negative and decreases with time, or the average speed increases The rate is minus and lower than the previous data!
  • (c) Determination by graph approximation.
  • C— 1) Plot the data of (a), find the quadratic function data approximated using the range of data that can be approximated by a suitable quadratic function, and if the quadratic coefficient is positive Judged as an increasing trend. If the coefficient is large, it is determined that the trend is increasing more rapidly.
  • (c-2) Plot the data of (b) and obtain approximate linear function data using data in a range that can be approximated by an appropriate linear function from the current point. If the linear coefficient is positive, Judgment that traffic congestion is increasing. Moreover, if there are many coefficients, it will determine with the more rapid traffic congestion increasing tendency.
  • (c 3) Apply other statistical judgment methods.
  • step S504 If it is determined that the ratio of increasing data is greater than or equal to a predetermined value (step S504: Yes), it is determined that the traffic congestion is increasing (step S505), and the process proceeds to step S509. If it is determined that the ratio of increasing data is not greater than or equal to the predetermined value (Step S504: No), it is determined whether the traffic length is less than the previous data and the data ratio is greater than or equal to the predetermined value (Step S506). . This determination is also performed in the same manner as the determination in step S504 whether the increased data is greater than or equal to the predetermined value.
  • step S506 If it is determined that the ratio of the reduced data is greater than or equal to a predetermined value (step S506: Yes), it is determined that the traffic congestion is decreasing (step S507), and the process proceeds to step S509. If it is determined that the ratio of the reduced data is not equal to or greater than the predetermined value (step S506: No), it is determined that the congestion tendency has changed!
  • the result is displayed (step S509). For example, when displaying on a navigation device, whether it is an increasing trend or a resolution direction beside the traffic jam display. An icon or the like indicating is displayed. It is acceptable to indicate the degree of increase or elimination as a numerical value. It can also be classified according to the color and shade of the traffic road. Then, a series of processing ends.
  • the accuracy of determination can also be improved by taking into account past traffic jam information.
  • Examples of the method include the following. First, unless there is a clear tendency to reduce traffic congestion (as described above) in the most recent data, traffic congestion will increase until it reaches the average maximum traffic jam length (average speed, required time between two locations) at the designated location. Judge as a trend. The average may be obtained by limiting the current time zone, day of the week, month, and season. In addition, the determination of “obvious” may be made by providing steps in the reduction amount, the increase rate change amount, and the coefficient in the above (a) to (c). Second, unless there is a clear tendency to reduce traffic congestion (as described above) in the latest data, the time that has passed since the current traffic congestion occurred Until it reaches “”.
  • the navigation 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, and a DVD, and is executed by reading the recording medium force 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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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Mathematical Physics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Ecology (AREA)
  • Navigation (AREA)

Abstract

L'invention concerne une section d'acquisition (101) qui acquiert des informations d'embouteillages actuels et des informations d'embouteillages passés d'une zone prescrite. Une section de comparaison (102) obtient une tendance d'augmentation/diminution de l'embouteillage en comparant les informations d'embouteillages actuels aux informations d'embouteillages passés acquises par la section d'acquisition (101). Une section de notification (103) notifie la tendance d'augmentation/diminution obtenue de la section de comparaison (102). Ainsi, il peut être évalué si l'embouteillage va augmenter ou être éliminé à partir des informations d'embouteillages de séries temporelles jusqu'à présent. La précision de l'évaluation est améliorée en utilisant les informations d'embouteillages passés.
PCT/JP2007/063265 2006-07-19 2007-07-03 dispositif de navigation, procédé de navigation, programme de navigation et support d'enregistrement lisible par un ordinateur WO2008010408A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006196326 2006-07-19
JP2006-196326 2006-07-19

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WO2008010408A1 true WO2008010408A1 (fr) 2008-01-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024258A1 (fr) * 2012-08-07 2014-02-13 三菱電機株式会社 Dispositif de traitement d'information de trafic
US10553108B2 (en) 2015-12-22 2020-02-04 Honda Motor Co., Ltd. Navigation server and navigation system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08287392A (ja) * 1995-04-14 1996-11-01 Alpine Electron Inc 車載ナビゲータシステム
JPH09264748A (ja) * 1996-03-28 1997-10-07 Matsushita Electric Ind Co Ltd 交通情報表示装置
JPH09292834A (ja) * 1996-04-26 1997-11-11 Casio Comput Co Ltd 交通情報受信装置及び交通情報報知方法
JP2001124577A (ja) * 1999-10-28 2001-05-11 Toyota Motor Corp 道路情報表示装置および経路探索装置
JP2003222528A (ja) * 2002-01-30 2003-08-08 Sony Corp ナビゲーション装置、渋滞履歴情報の出力方法、プログラム
JP2003302229A (ja) * 2002-04-08 2003-10-24 Hitachi Ltd ナビゲーション装置
JP2004085229A (ja) * 2002-08-23 2004-03-18 Alpine Electronics Inc ナビゲーション装置
JP2004144720A (ja) * 2002-10-28 2004-05-20 Nissan Motor Co Ltd ナビゲーション装置及びその渋滞表示方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08287392A (ja) * 1995-04-14 1996-11-01 Alpine Electron Inc 車載ナビゲータシステム
JPH09264748A (ja) * 1996-03-28 1997-10-07 Matsushita Electric Ind Co Ltd 交通情報表示装置
JPH09292834A (ja) * 1996-04-26 1997-11-11 Casio Comput Co Ltd 交通情報受信装置及び交通情報報知方法
JP2001124577A (ja) * 1999-10-28 2001-05-11 Toyota Motor Corp 道路情報表示装置および経路探索装置
JP2003222528A (ja) * 2002-01-30 2003-08-08 Sony Corp ナビゲーション装置、渋滞履歴情報の出力方法、プログラム
JP2003302229A (ja) * 2002-04-08 2003-10-24 Hitachi Ltd ナビゲーション装置
JP2004085229A (ja) * 2002-08-23 2004-03-18 Alpine Electronics Inc ナビゲーション装置
JP2004144720A (ja) * 2002-10-28 2004-05-20 Nissan Motor Co Ltd ナビゲーション装置及びその渋滞表示方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024258A1 (fr) * 2012-08-07 2014-02-13 三菱電機株式会社 Dispositif de traitement d'information de trafic
US10553108B2 (en) 2015-12-22 2020-02-04 Honda Motor Co., Ltd. Navigation server and navigation system

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