CN103413431A - Bus multimedia playing, video monitoring and scheduling method based on DaVinci platform - Google Patents
Bus multimedia playing, video monitoring and scheduling method based on DaVinci platform Download PDFInfo
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Abstract
The invention relates to a bus multimedia playing, video monitoring and scheduling method based on a DaVinci platform. The bus multimedia playing, video monitoring and scheduling method based on the DaVinci platform mainly comprises the following steps that firstly, a system is wakened up; secondly, a system state is detected and the network is connected; thirdly, tasks are confirmed and a device state is adjusted; fourthly, during the normal driving of a bus, real-time positioning of parallel buses, displaying of multimedia programs, video and audio monitoring data collecting, the local wireless accessing service and other relevant work are performed; fifthly, a state after the tasks are finished is reported, the data are uploaded and other task handover work is performed; sixthly, a new task is inquired; seventhly, a system program is updated; eighthly, a multimedia material is updated, ninthly, the system enters a sleep mode and waits for being woken up by the tasks. The bus multimedia playing, video monitoring and scheduling method based on the DaVinci platform greatly improves the intelligence degree of bus operation and meanwhile, effectively enhances user experiences of bus passengers.
Description
Technical field
The present invention relates to the technical fields such as internet, multimedia, GPS location, wireless mobile communications and radio-frequency (RF) identification, particularly relate to a kind of multimedia of public transport based on Leonardo da Vinci's platform, video monitoring and dispatching method.
Background technology
Along with the fast development of urban economy, the contradiction between Urban traffic demand rapid growth and resource environment constraint is becoming increasingly acute.In order to adapt to the demand of Urban Traffic motorization development process, the demand that particularly adapts to city and traffic good interaction, under its development of informationization technology, management system of public traffic with vehicle management and intelligent scheduling function starts to enter the public transport industry, and urban public transport has stepped informationalized paces.
But at present, existing public transport vehicle-mounted electronic equipment is of a great variety and separate, and the Bus information resource can't effectively fully utilize; The public transit system operation mode is outmoded, can't effectively improve transit quality of service and user and experience; Public transport vehicle-mounted electronic device information technology application level is lower, and business administration can't be broken away from manual operations and experience management phase.These have seriously restricted the development of urban transportation towards " unimpeded, efficient, safety, green " direction.In order to adapt to the demand of Traffic Development, need to provide a kind of intelligentized public transit system operation mode for urban public transport, to improve the service quality of urban public transport, improve vehicle electronic device informationization technology application level, make urban public transport really march toward the information age.
Summary of the invention
For the deficiency of existing public transport video monitoring and dispatching system implementation method, the present invention provides a kind of intelligent implementing method more for bus operation.
Public transport multimedia, video monitoring and dispatching method based on Leonardo da Vinci's platform, comprise the steps:
(1) after power module (1100) detects the vehicle launch signal, to the main frame that is in park mode (1200) transmitting system wake-up signal, control system enters mode of operation by park mode;
(2), after system enters mode of operation, under the control of signal processor (1201), automatically each functional module of system and vehicle-mounted controlled plant are communicated to detection and state-detection; After detection completed, if system and equipment are normal, system was set up radio communication by wireless mobile communications module (1207) with the transit operation center and is connected, automatically the reporting system state; Simultaneity factor is reported the voice channel towards the vehicle driver in functional module (1205) by audio frequency and is sent the normal voice circular of indication equipment to the driver;
(3) vehicle driver is by radio frequency recognition function module (1304) typing personal information, to realize the record of transit operation center to vehicle driver state, system receives the assignment instructions from the transit operation center by wireless network, the vehicle driver is by being positioned at " beginning " on operating terminal (1300), " end ", " switching ", " confirmation " reaches confirmation and the startup that task function buttons such as " menus " is finished the work, by the equipment state of function of infrared remote control module (1301) to system, system time, network connects, the volume of calling out the stops and multimedia programming etc. arrange and adjust, make system be in best running status, now, monitor video playing function module (1306) is as the interface of man-machine interaction, system is reported in functional module (1205) voice broadcast that automatically carries out vehicle departures, circuit and task relevant information towards the voice channel of passenger inside and outside vehicle by audio frequency,
(4) in the normal vehicle operation process, the system following operation that walks abreast: video acquisition functional module (1202) and audio collection functional module (1204) are carried out the Real-time Collection of four road videos and two-way audio, the audio, video data collected is processed by digital signal processor (1201), video data after processing send monitor video playing function module (1306) to show in real time, and audio, video data and vehicle driving record are stored in SD card memory function module (1211) simultaneously; Multi-media player function module (1203) receives the composite analog video signal of signal processor (1201) output, shows by the analog video display, realizes that the rolling of memory-type digital multimedia is play; The status informations such as GPS module (1209) Real-time Collection car speed, position, report functional module (1205) in conjunction with audio frequency and towards the passenger, carry out the automatic information broadcast of bus station and public transport service expression; The information exchange of relevant vehicle current state is crossed LED display and is showed towards the passenger with the form of figure, word; The information exchange such as car speed, state is crossed wireless network and is uploaded in real time the transit operation central server, and the form with electronic chart after resolving shows at the transit operation center; The status information such as vehicle location, speed real-time update is to network electronic map, to facilitate the real-time query of the public to vehicle-state; When wireless mobile communications module (1207) adopted the module of using 3G technology, Wi-Fi module (1208) coordinated with wireless mobile communications module (1207), provided the 3G wireless network local free access service towards the passenger; Temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range of having set, system is carried out the temperature adjustment by the voice reminder driver automatically;
(5) after vehicle is reached terminal, system by wireless network to the transit operation center, report vehicle-state, the handing-over of finishing the work; Whether system will, according to the service condition of the interior storage space of local SD card memory function module (1211), determine to need the data upload in enormous quantities such as the audio, video data that system acquisition is arrived and driving recording to the transit operation central server; If need, by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, realize communication connection, automatically audio, video data and driving recording etc. is uploaded to the transit operation central server, after having uploaded, remove local related data;
(6) system inquires automatically whether the transit operation center has new task, if new task is arranged, carries out the assignment instructions reception, and repeating step (3)～(6), if there is no new task, enter next step operation;
(7) system realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically log in the version information of transit operation central server reading system program and compare with system current version information, when finding that there is the new version system program, automatically complete download the writing system program memory function module (1212) of redaction program, after system restart, complete program updates;
(8) system realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically logging in the transit operation central server reads the version information of memory-type digital multimedia material and compares with system current version information, when finding that there is the redaction Multi-media Material, automatically complete the download of redaction Multi-media Material and write SD card memory function module (1211), will show service according to redaction digital multimedia material after system restart;
(9) system proceeds to park mode by mode of operation automatically, wake-up waiting;
Further, in step (2), if wireless mobile communications module (1207) dysfunction detected, system is also again attempted setting up wireless network by this module of autoboot and is connected, if can set up normal wireless network, connect, according to step (2)～(9), operate; If still can't set up normal wireless network connection after restarting module, system is reported the audio alert that carries out equipment failure towards vehicle driver's voice channel in functional module (1205) by audio frequency; If wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction detected, by wireless network reporting system device fault information, by the transit operation Central Radical factually the border situation implement scheduling decision, to guarantee public transit system safety, efficient operation.
Further, signal processor (1201) described in step (2) is the core cell of digital signal processing, by DaVinci(Leonardo da Vinci)+FPGA forms, mainly by FPGA, complete the pre-service that gathers the video data obtained and realize peripheral circuit and DaVinci(Leonardo da Vinci) between communication connection, by DaVinci(Leonardo da Vinci) complete that encoding and decoding audio and video data is processed, grid is controlled and the management of each functional module of periphery.
Further, the monitor video playing function module (1306) described in step (3) towards the vehicle driver carry out the real-time demonstration of monitor video and in equipment state is adjusted as human-computer interaction interface; In the normal vehicle operation process, monitor video playing function module (1306) shows is the 4CIF resolution video that four road CIF format videos of video acquisition functional module (1202) Real-time Collection are spliced; When the switch for vehicle door, the content that monitor video playing function module (1306) shows automatically switches to towards the video image of the camera collection of vehicle get-off door, when normal vehicle operation, and the demonstration of the 4CIF format video that automatically switches back.
Further, video acquisition work described in step (4) comprises the Real-time Collection of four road CIF format videos, at first the video data collected completes synthetic to the 4CIF resolution video of 4 road CIF format videos by FPGA, then send DaVinci(Leonardo da Vinci by FPGA); Compress, coding, video show, data storage or the processing such as upload in real time.
Further, the wireless mobile communications module (1207) that enforcement wireless network described in step (2) connects, module that can choice for use GPRS technology, module that also can the choice for use 3G technology; When wireless mobile communications module (1207) is used the module that adopts 3G technology, the video data that video acquisition functional module (1202) collects is after signal processor (1201) is processed, in the situation that needs, can be uploaded in real time the transit operation center by 3G network, uploading in real time of video data can be initiated by the driver, also can be implemented by transit operation centralized telecontrol.
Further, audio frequency described in step (2) is reported the translation function that functional module (1205) possesses Text To Speech, can implement the voice broadcast work of the text message that the transit operation center issues.
Further, the voice broadcast work of the bus station described in step (4) and public transport service expression can also realize by the functional module of manually calling out the stops (1302) under vehicle driver's control; Be no matter adopt automatic broadcasting or manually call out the stops, be in the vehicle of owl run under the control of temporal logic, automatically closed towards voice broadcast work such as the bus station information of outside vehicle and public transport service expressions.
Further, in step (3)～(6) process, function, digital keys and talking handle on wireless mobile communications module (1207), operating terminal (1300) match, between vehicle driver and transit operation service centre, can carry out the real-time voice conversation with wireless telephonic form, vehicle driver and public transport the management and running center can be the initiator of conversation, obtaining after the other side confirms carrying out the real-time voice conversation; The driver can also directly use hand-free function to carry out voice call.
Further, the renewal of the system program described in step (7), (8) and Multi-media Material data can also realize in manual mode by SD card memory function module (1211), namely manually will be loaded with the SD card implant system of new version system program, when system detects in the SD card when new version system program is arranged, system automatically completes the download of redaction program and is stored in system program memory module (1212), after system is restarted, the completion system program updates; After the SD card implant system that will be loaded with the redaction Multi-media Material, system will be carried out according to up-to-date Multi-media Material data the rolling broadcasting of multimedia programming.
Advantage of the present invention is: device integration is high, the information real-time is good, the equipment operation cost is low, the user experiences better and system operation mode is versatile and flexible, can effectively improve service quality and the information system management level of public transit system.
The accompanying drawing explanation
Accompanying drawing 1 is the one-piece construction schematic block diagram of realizing the system of this method
Accompanying drawing 2 is video acquisition and the treatment scheme schematic block diagram of this method
Accompanying drawing 3 is the schematic process flow diagram of this method
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated:
Public transport multimedia, video monitoring and dispatching method based on Leonardo da Vinci's platform, comprise the steps:
(1) after power module (1100) detects the vehicle launch signal, to the main frame that is in park mode (1200) transmitting system wake-up signal, control system enters mode of operation by park mode;
(2), after system enters mode of operation, under the control of signal processor (1201), automatically each functional module of system and vehicle-mounted controlled plant are communicated to detection and state-detection; After detection completed, if system and equipment are normal, system was set up radio communication by wireless mobile communications module (1207) with the transit operation center and is connected, automatically the reporting system state; Simultaneity factor is reported the voice channel towards the vehicle driver in functional module (1205) by audio frequency and is sent the normal voice circular of indication equipment to the driver;
(3) vehicle driver is by radio frequency recognition function module (1304) typing personal information, to realize the record of transit operation center to vehicle driver state, system receives the assignment instructions from the transit operation center by wireless network, the vehicle driver is by being positioned at " beginning " on operating terminal (1300), " end ", " switching ", " confirmation " reaches confirmation and the startup that task function buttons such as " menus " is finished the work, by the equipment state of function of infrared remote control module (1301) to system, system time, network connects, the volume of calling out the stops and multimedia programming etc. arrange and adjust, make system be in best running status, now, monitor video playing function module (1306) is as the interface of man-machine interaction, system is reported in functional module (1205) voice broadcast that automatically carries out vehicle departures, circuit and task relevant information towards the voice channel of passenger inside and outside vehicle by audio frequency,
(4) in the normal vehicle operation process, the system following operation that walks abreast: video acquisition functional module (1202) and audio collection functional module (1204) are carried out the Real-time Collection of four road videos and two-way audio, the audio, video data collected is processed by digital signal processor (1201), video data after processing send monitor video playing function module (1306) to show in real time, and audio, video data and vehicle driving record are stored in SD card memory function module (1211) simultaneously; Multi-media player function module (1203) receives the composite analog video signal of signal processor (1201) output, shows by the analog video display, realizes that the rolling of memory-type digital multimedia is play; The status informations such as GPS module (1209) Real-time Collection car speed, position, report functional module (1205) in conjunction with audio frequency and towards the passenger, carry out the automatic information broadcast of bus station and public transport service expression; The information exchange of relevant vehicle current state is crossed LED display and is showed towards the passenger with the form of figure, word; The information exchange such as car speed, state is crossed wireless network and is uploaded in real time the transit operation central server, and the form with electronic chart after resolving shows at the transit operation center; The status information such as vehicle location, speed real-time update is to network electronic map, to facilitate the real-time query of the public to vehicle-state; When wireless mobile communications module (1207) adopted the module of using 3G technology, Wi-Fi module (1208) coordinated with wireless mobile communications module (1207), provided the 3G wireless network local free access service towards the passenger; Temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range of having set, system is carried out the temperature adjustment by the voice reminder driver automatically;
(5) after vehicle is reached terminal, system by wireless network to the transit operation center, report vehicle-state, the handing-over of finishing the work; Whether system will, according to the service condition of the interior storage space of local SD card memory function module (1211), determine to need the data upload in enormous quantities such as the audio, video data that system acquisition is arrived and driving recording to the transit operation central server; If need, by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, realize communication connection, automatically audio, video data and driving recording etc. is uploaded to the transit operation central server, after having uploaded, remove local related data;
(6) system inquires automatically whether the transit operation center has new task, if new task is arranged, carries out the assignment instructions reception, and repeating step (3)～(6), if there is no new task, enter next step operation;
(7) system realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically log in the version information of transit operation central server reading system program and compare with system current version information, when finding that there is the new version system program, automatically complete download the writing system program memory function module (1212) of redaction program, after system restart, complete program updates;
(8) system realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically logging in the transit operation central server reads the version information of memory-type digital multimedia material and compares with system current version information, when finding that there is the redaction Multi-media Material, automatically complete the download of redaction Multi-media Material and write SD card memory function module (1211), will show service according to redaction digital multimedia material after system restart;
(9) system proceeds to park mode by mode of operation automatically, wake-up waiting;
Further, in step (2), if wireless mobile communications module (1207) dysfunction detected, system is also again attempted setting up wireless network by this module of autoboot and is connected, if can set up normal wireless network, connect, according to step (2)～(9), operate; If still can't set up normal wireless network connection after restarting module, system is reported the audio alert that carries out equipment failure towards vehicle driver's voice channel in functional module (1205) by audio frequency; If wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction detected, by wireless network reporting system device fault information, by the transit operation Central Radical factually the border situation implement scheduling decision, to guarantee public transit system safety, efficient operation.
Further, signal processor (1201) described in step (2) is the core cell of digital signal processing, by DaVinci(Leonardo da Vinci)+FPGA forms, mainly by FPGA, complete the pre-service that gathers the video data obtained and realize peripheral circuit and DaVinci(Leonardo da Vinci) between communication connection, by DaVinci(Leonardo da Vinci) complete that encoding and decoding audio and video data is processed, grid is controlled and the management of each functional module of periphery.
Further, the monitor video playing function module (1306) described in step (3) towards the vehicle driver carry out the real-time demonstration of monitor video and in equipment state is adjusted as human-computer interaction interface; In the normal vehicle operation process, monitor video playing function module (1306) shows is the 4CIF resolution video that four road CIF format videos of video acquisition functional module (1202) Real-time Collection are spliced; When the switch for vehicle door, the content that monitor video playing function module (1306) shows automatically switches to towards the video image of the camera collection of vehicle get-off door, when normal vehicle operation, and the demonstration of the 4CIF format video that automatically switches back.
Further, video acquisition work described in step (4) comprises the Real-time Collection of four road CIF format videos, at first the video data collected completes synthetic to the 4CIF resolution video of 4 road CIF format videos by FPGA, then send DaVinci(Leonardo da Vinci by FPGA); Compress, coding, video show, data storage or the processing such as upload in real time.
Further, the wireless mobile communications module (1207) that enforcement wireless network described in step (2) connects, module that can choice for use GPRS technology, module that also can the choice for use 3G technology; When wireless mobile communications module (1207) is used the module that adopts 3G technology, the video data that video acquisition functional module (1202) collects is after signal processor (1201) is processed, in the situation that needs, can be uploaded in real time the transit operation center by 3G network, uploading in real time of video data can be initiated by the driver, also can be implemented by transit operation centralized telecontrol.
Further, audio frequency described in step (2) is reported the translation function that functional module (1205) possesses Text To Speech, can implement the voice broadcast work of the text message that the transit operation center issues.
Further, the voice broadcast work of the bus station described in step (4) and public transport service expression can also realize by the functional module of manually calling out the stops (1302) under vehicle driver's control; Be no matter adopt automatic broadcasting or manually call out the stops, be in the vehicle of owl run under the control of temporal logic, automatically closed towards voice broadcast work such as the bus station information of outside vehicle and public transport service expressions.
Further, in step (3)～(6) process, function, digital keys and talking handle on wireless mobile communications module (1207), operating terminal (1300) match, between vehicle driver and transit operation service centre, can carry out the real-time voice conversation with wireless telephonic form, vehicle driver and public transport the management and running center can be the initiator of conversation, obtaining after the other side confirms carrying out the real-time voice conversation; The driver can also directly use hand-free function to carry out voice call.
Further, the renewal of the system program described in step (7), (8) and Multi-media Material data can also realize in manual mode by SD card memory function module (1211), namely manually will be loaded with the SD card implant system of new version system program, when system detects in the SD card when new version system program is arranged, system automatically completes the download of redaction program and is stored in system program memory module (1212), after system is restarted, the completion system program updates; After the SD card implant system that will be loaded with the redaction Multi-media Material, system will be carried out according to up-to-date Multi-media Material data the rolling broadcasting of multimedia programming.
As shown in Figure 1, the system that realizes the method is comprised of power module (1100), main frame (1200) and operating terminal (1300) three parts, wherein, described power module (1100) is supported the input of 9-36V direct current wide power, comprise that mainly power supply conversion output, mode of operation are controlled, power network is controlled and Audio power amplifier four partial function circuit, by digital-to-analog interface and main frame (1200), communicate, realize the conversion of system front end power supply, working state of system switching, Audio power amplifier, power network control, main frame (1200) is the core of system, adopt the framed structure of DaVinci (Leonardo da Vinci)+FPGA, mainly comprise signal processor (1201), video acquisition functional module (1202), multi-media player function module (1203), audio collection functional module (1204), audio frequency is reported functional module (1205), mobile unit interface module (1206), wireless mobile communications module (1207), Wi-Fi module (1208), GPS module (1209), Interface Expanding functional module (1210), SD card memory function module (1211) and system program memory module (1212), the enforcement audio, video data gathers, multimedia programming is showed, digital signal processing, vehicle is located in real time, grid is controlled, the control of radio communication connection and mobile unit, operating terminal (1300) is the Man Machine Interface towards the vehicle driver, mainly comprises function of infrared remote control module (1301), manually call out the stops functional module (1302), microcontroller (1303), radio frequency recognition function module (1304), temperature acquisition functional module (1305) and monitor video playing function module (1306), this end face provides 20 buttons to the vehicle driver, comprise " beginning " key, " end " key, " switching " key, " confirmation " key, " menu " key, " warning " key, four direction key and 0 to 9 totally ten digital keys, coordinate Infrared remote controller and chromatic liquid crystal screen, realize the man-machine interaction between vehicle driver and system,
As shown in Figure 3, bus is finished the work while stopping bus terminus, realizes that public transport video monitoring and the dispatching system of the method is in park mode, the system wake-up signal while waiting for vehicle launch;
After vehicle launch, power module (1100) detects the vehicle launch signal, and to the main frame that is in park mode (1200) transmitting system wake-up signal, control system enters mode of operation by park mode;
After system enters mode of operation, under the control of signal processor (1201), automatically each functional module of system and vehicle-mounted controlled plant are communicated to detection and state-detection; After detection completed, if system and equipment are normal, system was set up radio communication by wireless mobile communications module (1207) with the transit operation center and is connected, automatically the reporting system state; Simultaneity factor is sent the normal voice circular of indication equipment by the voice channel towards the vehicle driver in voice broadcast function module (1204) to the driver; If wireless mobile communications module (1207) dysfunction detected, system is also again attempted setting up wireless network by this module of autoboot and is connected, and connects if can set up normal wireless network, according to normal flow, operates; If still can't set up normal wireless network connection after restarting module, system is reported the audio alert that carries out equipment failure towards vehicle driver's voice channel in functional module (1205) by audio frequency; If wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction detected, by wireless network reporting system device fault information, by the transit operation Central Radical factually the border situation implement scheduling decision, to guarantee public transit system safety, efficient operation;
If system works is normal, the vehicle driver is by radio frequency recognition function module (1304) typing personal information, to realize the record of transit operation center to vehicle driver state; System receives the assignment instructions from the transit operation center by wireless network, the vehicle driver reaches by " beginning ", " end ", " switching ", " confirmation " be positioned on operating terminal (1300) confirmation and the startup that task function buttons such as " menus " is finished the work, by function of infrared remote control module (1301), the equipment state of system, system time, network connection, the volume of calling out the stops etc. are arranged and adjust, make system be in best running status, now video playback capability module (1305) is the interface of man-machine interaction; Meanwhile, system is reported in functional module (1205) voice broadcast that automatically carries out vehicle departures, circuit and task relevant information towards the voice channel of passenger inside and outside vehicle by audio frequency;
In the normal vehicle operation process, video acquisition functional module (1202) is carried out the collection of four road CIF format videos in real time, at first the video data collected send FPGA to carry out the splicing of four road CIF format videos to the 4CIF resolution video, the 4CIF resolution video spliced send DaVinci (Leonardo da Vinci) to carry out compression coding, final video data is exported to video playback capability module (1305) and is shown in real time by being positioned at video back end interface on DaVinci (Leonardo da Vinci) on the one hand, be stored on the other hand in SD card memory function module (1211), after getting back to bus terminus, vehicle is uploaded in batches the transit operation central server by the interior Wi-Fi wireless network of standing, when the wireless mobile communications module (1207) of system adopts the module of using 3G technology, in the situation that needs, video data can be uploaded to the transit operation center in real time by 3G network, at the management and running center, show in real time, vehicle driver and transit operation center can be that the initiation of realtime video transmission is put, the other side can carry out transmission of video after confirming, meanwhile, audio collection functional module (1204) is carried out the collection of two-way audio in real time, the voice data collected is after DaVinci (Leonardo da Vinci) processes, be stored in SD card memory function module (1211) the transit operation service center server of uploading in batches by the interior Wi-Fi wireless network of standing after vehicle is got back to bus terminus, meanwhile, GPS module (1209) Real-time Collection car speed, the status informations such as position, the coupling system audio frequency is reported the voice broadcast work that functional module (1205) realizes bus station and public transport service expression, system is uploaded to the transit operation center by status informations such as the real-time speed of vehicle and positions by wireless network, form with electronic chart after resolving shows, for checking at the transit operation center, the status informations such as the real-time speed of vehicle and position also by real-time update to network electronic map, facilitate the real-time query of the public to vehicle-state, the information such as car speed, website also shows on vehicle-mounted LED display screen with the form of figure and word, when wireless mobile communications module (1207) adopts the module of using 3G technology, can also coordinate with Wi-Fi module (1208), build public transport vehicle-mounted WLAN, the free access service in this locality of 3G wireless network is provided towards the passenger,
In the vehicle normal course of operation, multi-media player function module (1203) is carried out multimedia rolling broadcasting displaying according to the Multi-media Material be stored in local SD card memory function module (1211), wherein, the state of broadcasting can arrange and adjust by function of infrared remote control module (1301);
In the vehicle normal course of operation, temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range of having set, system is carried out the temperature adjustment by the voice reminder driver automatically;
If vehicle operating is the late into the night, when the automatic information broadcast work of carrying out bus station and public transport service expression, system is carried out automatic closed the voice channel of voice broadcast to the outside vehicle crowd, and other voice broadcasts are working properly to carry out;
In the vehicle operating process, for the text messages such as dispatch command that the transit operation center issues, system is reported towards driver or passenger with the form of voice by the text-to-speech function;
When vehicle carried out switch gate, the content that video playback capability module (1305) shows automatically switched to towards the video image of the camera collection of vehicle get-off door, when normal vehicle operation, and the demonstration of the 4CIF format video that automatically switches back;
In the Vehicle Driving Cycle process, when voice broadcast when work that system automatic broadcasting function can not normally complete bus station and public transport service expression, the vehicle driver can carry out bus station under manual intervention and the manual report work of public transport service expression by the functional module of manually calling out the stops (1302);
In the situation that needs carry out the real-time voice conversation between vehicle driver and transit operation center, vehicle driver and transit operation center can be the initiators of real-time voice conversation; In communication process, the vehicle driver can converse by the choice for use talking handle, also can use hand-free function to carry out voice call;
After vehicle is reached terminal, system by wireless network to the transit operation center, report vehicle-state, the handing-over of finishing the work; System detects the service condition of the interior storage space of local SD card memory function module (1211) automatically, if remaining space anxiety, by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, realize communication connection, automatically audio, video data and driving recording etc. is uploaded to the transit operation central server, after having uploaded, remove local related data, uploading also of these data can be implemented under the command remote control at transit operation center;
System inquires automatically whether the transit operation center has new task, if new task is arranged, carries out the assignment instructions reception, there is no new assignment instructions if reenter execution status of task, enters next step operation;
System realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically log in the version information of transit operation central server reading system program and Multi-media Material and compare with current version information, when finding that there is new version system program or Multi-media Material, automatically complete the download of redaction program or Multi-media Material, the system program writing system program memory function module (1211) of downloading, after system restart, complete program updates, the Multi-media Material of downloading writes in the SD card in SD card memory function module (1211), system will be carried out the multimedia rolling according to up-to-date Multi-media Material and be play displaying,
The renewal of system program and Multi-media Material can also realize by manual mode by SD card memory function module (1211), while namely in system SD card being detected, the new version system program being arranged, system reads new version system program writing system program memory function module (1212) from SD card memory function module (1211) automatically, after system is restarted, the completion system program updates, while in system SD card being detected, the redaction Multi-media Material being arranged, system is carried out the rolling broadcasting of multimedia programming automatically according to redaction Multi-media Material data;
After completing above work, if there is no new task and other work, system will enter park mode by mode of operation automatically, wake-up waiting.
Above-mentioned embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from the modification done under Spirit Essence of the present invention and principle, substitutes, combination, cutting; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. based on public transport multimedia, video monitoring and the dispatching method of Leonardo da Vinci's platform, comprise the steps:
(1) after power module (1100) detects the vehicle launch signal, to the main frame that is in park mode (1200) transmitting system wake-up signal, control system enters mode of operation by park mode;
(2), after system enters mode of operation, under the control of signal processor (1201), automatically each functional module of system and vehicle-mounted controlled plant are communicated to detection and state-detection; After detection completed, if system and equipment are normal, system was set up radio communication by wireless mobile communications module (1207) with the transit operation center and is connected, automatically the reporting system state; Simultaneity factor is reported the voice channel towards the vehicle driver in functional module (1205) by audio frequency and is sent the normal voice circular of indication equipment to the driver;
(3) vehicle driver is by radio frequency recognition function module (1304) typing personal information, to realize the record of transit operation center to vehicle driver state, system receives the assignment instructions from the transit operation center by wireless network, the vehicle driver is by being positioned at " beginning " on operating terminal (1300), " end ", " switching ", " confirmation " reaches confirmation and the startup that task function buttons such as " menus " is finished the work, by the equipment state of function of infrared remote control module (1301) to system, system time, network connects, the volume of calling out the stops and multimedia programming etc. arrange and adjust, make system be in best running status, now, monitor video playing function module (1306) is as the interface of man-machine interaction, system is reported in functional module (1205) voice broadcast that automatically carries out vehicle departures, circuit and task relevant information towards the voice channel of passenger inside and outside vehicle by audio frequency,
(4) in the normal vehicle operation process, the system following operation that walks abreast: video acquisition functional module (1202) and audio collection functional module (1204) are carried out the Real-time Collection of four road videos and two-way audio, the audio, video data collected is processed by digital signal processor (1201), video data after processing send monitor video playing function module (1306) to show in real time, and audio, video data and vehicle driving record are stored in SD card memory function module (1211) simultaneously; Multi-media player function module (1203) receives the composite analog video signal of signal processor (1201) output, shows by the analog video display, realizes that the rolling of memory-type digital multimedia is play; The status informations such as GPS module (1209) Real-time Collection car speed, position, report functional module (1205) in conjunction with audio frequency and towards the passenger, carry out the automatic information broadcast of bus station and public transport service expression; The information exchange of relevant vehicle current state is crossed LED display and is showed towards the passenger with the form of figure, word; The information exchange such as car speed, state is crossed wireless network and is uploaded in real time the transit operation central server, and the form with electronic chart after resolving shows at the transit operation center; The status information such as vehicle location, speed real-time update is to network electronic map, to facilitate the real-time query of the public to vehicle-state; When wireless mobile communications module (1207) adopted the module of using 3G technology, Wi-Fi module (1208) coordinated with wireless mobile communications module (1207), provided the 3G wireless network local free access service towards the passenger; Temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range of having set, system is carried out the temperature adjustment by the voice reminder driver automatically;
(5) after vehicle is reached terminal, system by wireless network to the transit operation center, report vehicle-state, the handing-over of finishing the work; Whether system will, according to the service condition of the interior storage space of local SD card memory function module (1211), determine to need the data upload in enormous quantities such as the audio, video data that system acquisition is arrived and driving recording to the transit operation central server; If need, by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, realize communication connection, automatically audio, video data and driving recording etc. is uploaded to the transit operation central server, after having uploaded, remove local related data;
(6) system inquires automatically whether the transit operation center has new task, if new task is arranged, carries out the assignment instructions reception, and repeating step (3)～(6), if there is no new task, enter next step operation;
(7) system realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically log in the version information of transit operation central server reading system program and compare with system current version information, when finding that there is the new version system program, automatically complete download the writing system program memory function module (1212) of redaction program, after system restart, complete program updates;
(8) system realizes communication connection by the interior Wi-Fi Hotspot in Wi-Fi module (1208) and station, automatically logging in the transit operation central server reads the version information of memory-type digital multimedia material and compares with system current version information, when finding that there is the redaction Multi-media Material, automatically complete the download of redaction Multi-media Material and write SD card memory function module (1211), will show service according to redaction digital multimedia material after system restart;
(9) system proceeds to park mode by mode of operation automatically, wake-up waiting.
2. the method for claim 1, it is characterized in that: in step (2), if wireless mobile communications module (1207) dysfunction detected, system is also again attempted setting up wireless network by this module of autoboot and is connected, if can set up normal wireless network, connect, according to step (2)～(9), operate; If still can't set up normal wireless network connection after restarting module, system is reported the audio alert that carries out equipment failure towards vehicle driver's voice channel in functional module (1205) by audio frequency; If wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction detected, by wireless network reporting system device fault information, by the transit operation Central Radical factually the border situation implement scheduling decision, to guarantee public transit system safety, efficient operation.
3. the method for claim 1, it is characterized in that: the signal processor (1201) described in step (2) is the core cell of digital signal processing, by DaVinci(Leonardo da Vinci)+FPGA forms, mainly by FPGA, complete the pre-service that gathers the video data obtained and realize peripheral circuit and DaVinci(Leonardo da Vinci) between communication connection, by DaVinci(Leonardo da Vinci) complete that encoding and decoding audio and video data is processed, grid is controlled and the management of each functional module of periphery.
4. the method for claim 1 is characterized in that: the monitor video playing function module (1306) described in step (3) towards the vehicle driver carry out the real-time demonstration of monitor video and in equipment state is adjusted as human-computer interaction interface; In the normal vehicle operation process, monitor video playing function module (1306) shows is the 4CIF resolution video that four road CIF format videos of video acquisition functional module (1202) Real-time Collection are spliced; When the switch for vehicle door, the content that monitor video playing function module (1306) shows automatically switches to towards the video image of the camera collection of vehicle get-off door, when normal vehicle operation, and the demonstration of the 4CIF format video that automatically switches back.
5. the method for claim 1, it is characterized in that: the video acquisition work described in step (4) comprises the Real-time Collection of four road CIF format videos, at first the video data collected completes synthetic to the 4CIF resolution video of 4 road CIF format videos by FPGA, then send DaVinci(Leonardo da Vinci by FPGA); Compress, coding, video show, data storage or the processing such as upload in real time.
6. the method for claim 1 is characterized in that: the wireless mobile communications module (1207) that the enforcement wireless network described in step (2) connects, module that can choice for use GPRS technology, module that also can the choice for use 3G technology; When wireless mobile communications module (1207) is used the module that adopts 3G technology, the video data that video acquisition functional module (1202) collects is after signal processor (1201) is processed, in the situation that needs, can be uploaded in real time the transit operation center by 3G network, uploading in real time of video data can be initiated by the driver, also can be implemented by transit operation centralized telecontrol.
7. the method for claim 1 is characterized in that: the audio frequency described in step (2) is reported the translation function that functional module (1205) possesses Text To Speech, can implement the voice broadcast work of the text message that the transit operation center issues.
8. the method for claim 1, it is characterized in that: the voice broadcast work of the bus station described in step (4) and public transport service expression can also realize by the functional module of manually calling out the stops (1302) under vehicle driver's control; Be no matter adopt automatic broadcasting or manually call out the stops, be in the vehicle of owl run under the control of temporal logic, automatically closed towards voice broadcast work such as the bus station information of outside vehicle and public transport service expressions.
9. the method for claim 1, it is characterized in that: in step (3)～(6) process, function, digital keys and talking handle on wireless mobile communications module (1207), operating terminal (1300) match, between vehicle driver and transit operation service centre, can carry out the real-time voice conversation with wireless telephonic form, vehicle driver and public transport the management and running center can be the initiator of conversation, obtaining after the other side confirms carrying out the real-time voice conversation; The driver can also directly use hand-free function to carry out voice call.
10. the method for claim 1, it is characterized in that: the renewal of the system program described in step (7), (8) and Multi-media Material data can also realize in manual mode by SD card memory function module (1211), namely manually will be loaded with the SD card implant system of new version system program, when system detects in the SD card when new version system program is arranged, system automatically completes the download of redaction program and is stored in system program memory module (1212), after system is restarted, the completion system program updates; After the SD card implant system that will be loaded with the redaction Multi-media Material, system will be carried out according to up-to-date Multi-media Material data the rolling broadcasting of multimedia programming.
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