CN103413431B - Based on the public transport multimedia of davinci platform, video monitoring and dispatching method - Google Patents
Based on the public transport multimedia of davinci platform, video monitoring and dispatching method Download PDFInfo
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Abstract
Based on the public transport multimedia of davinci platform, video monitoring and dispatching method, mainly comprise the following steps: (1) system wake-up; (2) system state inspection and network connect; (3) task confirms and equipment state adjustment; (4) parallel in normal vehicle operation process vehicle is located in real time, multimedia programming displaying, audio-video monitoring data acquisition, local wireless access service and other related works; (5) task complete after the task transition such as state reporting and data upload; (6) new task inquiry; (7) system program upgrades; (8) Multi-media Material upgrades; (9) enter park mode wait task to wake up.Public transport multimedia show provided by the present invention, video monitoring and dispatching method, while the intelligence degree improving bus operation greatly, effectively enhance the Consumer's Experience of bus passenger.
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 public transport multimedia based on davinci platform, video monitoring and dispatching method.
Background technology
Along with the fast development of urban economy, the contradiction that Urban traffic demand increases fast between resource environment constraint is becoming increasingly acute.In order to adapt to the demand of Urban Traffic motorization development process, particularly adapt to the demand of city and traffic good interaction, under its development of informationization technology, the management system of public traffic with vehicle management and intelligent scheduling function starts to enter public transit trade, 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 Bus information resource cannot effectively fully utilize; Public transit system operation mode is outmoded, cannot effectively improve transit quality of service and Consumer's Experience; Public transport vehicle-mounted electronic device information technology application level is lower, and business administration cannot break away from manual operations and experience management phase.These seriously constrain the development of urban transportation towards " unimpeded, efficient, safety, green " direction.In order to adapt to the demand of Traffic Development, need for urban public transport provides a kind of intelligentized public transit system operation mode, 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 is that bus operation provides one intelligent implementing method more.
Based on the public transport multimedia of davinci platform, video monitoring and dispatching method, comprise the steps:
(1), after power module (1100) detects vehicle launch signal, to main frame (1200) the transmitting system wake-up signal being in park mode, control system enters mode of operation by park mode;
(2) after system enters mode of operation, under the control of signal processor (1201), automatically communication check and state-detection are carried out to each functional module of system and vehicle-mounted controlled plant; After detection completes, if system and equipment are normal, then system is set up radio communication by wireless mobile communications module (1207) with transit operation center and is connected, automatic reporting system state; Simultaneity factor is reported in functional module (1205) by audio frequency and is sent the normal voice circular of indication equipment towards the voice channel of vehicle driver to 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 transit operation center by wireless network, vehicle driver is by being positioned at " beginning " on operating terminal (1300), " end ", " switching ", the confirmation that the task function button such as " confirmation " and " menu " is finished the work and startup, by function of infrared remote control module (1301) to the equipment state of system, system time, network connects, volume and the multimedia programming etc. of calling out the stops carries out arranging and adjusting, system is made to be in best running status, now, monitor video playing function module (1306) is as the interface of man-machine interaction, system reports the voice broadcast automatically carrying out vehicle departures, circuit and task relevant information in functional module (1205) towards the voice channel of passenger inside and outside vehicle by audio frequency,
(4) in normal vehicle operation process, system in parallel operates as follows: video acquisition functional module (1202) and audio collection functional module (1204) carry 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 process 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; The composite analog video signal that multi-media player function module (1203) Received signal strength processor (1201) exports, is shown by analog video display, and the rolling realizing memory-type digital multimedia is play; The status informations such as GPS module (1209) Real-time Collection car speed, position, carry out the automatic information broadcast of bus station and bus service term towards passenger in conjunction with audio frequency report functional module (1205); The information of associated vehicle current state is shown towards passenger with the form of figure, word by LED display; The information such as car speed, state is uploaded to transit operation central server in real time by wireless network, shows after resolving with the form of electronic chart at transit operation center; The status information such as vehicle location, speed real-time update to network electronic map, to facilitate the public to the real-time query of vehicle-state; When wireless mobile communications module (1207) adopts the module using 3G technology, Wi-Fi module (1208) coordinates with wireless mobile communications module (1207), provides 3G wireless network local free access service towards passenger; Temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range set, system carries out temperature adjustment by voice reminder driver automatically;
(5) after vehicle is reached terminal, system reports vehicle-state by wireless network to transit operation center, handing-over of finishing the work; System according to the service condition of local SD card memory function module (1211) memory space, will determine the need of the data upload in enormous quantities such as audio, video data system acquisition arrived and driving recording to transit operation central server; If desired, then realize communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically audio, video data and driving recording etc. are uploaded to transit operation central server, after having uploaded, remove local related data;
(6) system inquires whether transit operation center has new task automatically, if there is new task, then carries out assignment instructions reception, repeats step (3) ~ (6), if do not have new task, then enters next step operation;
(7) system realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in 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 new version system program, automatically complete the download of redaction program and writing system program memory function module (1212), after system restart, complete program updates;
(8) system realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically log in transit operation central server read the version information of memory-type digital multimedia material and compare with system current version information, when finding that there is redaction Multi-media Material, automatically complete the download of redaction Multi-media Material and write SD card memory function module (1211), displaying service will be carried out 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 this module of autoboot is laid equal stress on new try set up wireless network connect, if normal wireless network can be set up to be connected, then operate according to step (2) ~ (9); If still cannot set up normal wireless network after restarting module to connect, then system reports the audio alert carrying out equipment failure in functional module (1205) towards the voice channel of vehicle driver by audio frequency; If detect wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction, then by wireless network reporting system device fault information, scheduling decision is implemented according to actual conditions, to ensure public transit system safety, Effec-tive Function by transit operation Central Radical.
Further, signal processor (1201) described in step (2) is the core cell of digital signal processing, by DaVinci(Leonardo da Vinci)+FPGA forms, complete gathering the pre-service of the video data obtained and realizing peripheral circuit and DaVinci(Leonardo da Vinci primarily of FPGA) between communication connection, by DaVinci(Leonardo da Vinci) complete encoding and decoding audio and video data process, grid controls and the management of peripheral each functional module.
Further, the monitor video playing function module (1306) described in step (3) towards vehicle driver carry out monitor video real-time display and equipment state adjustment in as human-computer interaction interface; In normal vehicle operation process, the 4CIF resolution video that four road CIF format videos of what monitor video playing function module (1306) showed is video acquisition functional module (1202) Real-time Collection are spliced; When switch for vehicle door, the content that monitor video playing function module (1306) shows automatically switches to the video image of the camera collection towards vehicle get-off door, when normal vehicle operation, and the display 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, first the video data collected completes the synthesis of 4 road CIF format videos to 4CIF resolution video by FPGA, then send DaVinci(Leonardo da Vinci by FPGA); Process such as carrying out compressing, encode, video display, data store or upload in real time.
Further, the wireless mobile communications module (1207) that enforcement wireless network described in step (2) connects, can the module of choice for use GPRS technology, also can the module of choice for use 3G technology; When wireless mobile communications module (1207) uses the module adopting 3G technology, the video data that video acquisition functional module (1202) collects is after signal processor (1201) process, in case of need, transit operation center can be uploaded in real time by 3G network, uploading in real time of video data can be initiated by driver, also can be implemented by transit operation centralized telecontrol.
Further, the audio frequency described in step (2) reports the translation function that functional module (1205) possesses Text To Speech, can implement the voice broadcast work of the text message that transit operation center issues.
Further, the voice broadcast work of the bus station described in step (4) and bus service term manually can also call out the stops under the control of vehicle driver functional module (1302) realize; Be no matter adopt automatic broadcasting or manually call out the stops, the vehicle being in owl run, under the control of temporal logic, is automatically switched off towards voice broadcast work such as the bus station information of outside vehicle and bus service terms.
Further, in step (3) ~ (6) process, function, digital keys and talking handle on wireless mobile communications module (1207), operating terminal (1300) match, real-time voice call can be carried out with wireless telephonic form between vehicle driver and transit operation service centre, vehicle driver and public transport management and running center can be the initiator of call, is obtaining can carrying out real-time voice call after the other side confirms; Driver can also directly use hand-free function to carry out voice call.
Further, the renewal of step (7), the system program described in (8) and Multi-media Material data can also be realized in a manual fashion by SD card memory function module (1211), namely manually the SD card implant system of new version system program will be loaded with, when there being new version system program in systems axiol-ogy to SD card, system automatically completes the download of redaction program and is stored in system program memory module (1212), after system reboot, completion system program updates; When after the SD card implant system that will be loaded with redaction Multi-media Material, system will carry out multimedia programming rolling according to up-to-date Multi-media Material data is play.
Advantage of the present invention is: device integration is high, information real-time is good, equipment operation cost is low, Consumer's Experience is better and system operation mode is versatile and flexible, effectively can improve service quality and the information system management level of public transit system.
Accompanying drawing explanation
Accompanying drawing 1 is for realizing the one-piece construction schematic block diagram of 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:
Based on the public transport multimedia of davinci platform, video monitoring and dispatching method, comprise the steps:
(1), after power module (1100) detects vehicle launch signal, to main frame (1200) the transmitting system wake-up signal being in park mode, control system enters mode of operation by park mode;
(2) after system enters mode of operation, under the control of signal processor (1201), automatically communication check and state-detection are carried out to each functional module of system and vehicle-mounted controlled plant; After detection completes, if system and equipment are normal, then system is set up radio communication by wireless mobile communications module (1207) with transit operation center and is connected, automatic reporting system state; Simultaneity factor is reported in functional module (1205) by audio frequency and is sent the normal voice circular of indication equipment towards the voice channel of vehicle driver to 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 transit operation center by wireless network, vehicle driver is by being positioned at " beginning " on operating terminal (1300), " end ", " switching ", the confirmation that the task function button such as " confirmation " and " menu " is finished the work and startup, by function of infrared remote control module (1301) to the equipment state of system, system time, network connects, volume and the multimedia programming etc. of calling out the stops carries out arranging and adjusting, system is made to be in best running status, now, monitor video playing function module (1306) is as the interface of man-machine interaction, system reports the voice broadcast automatically carrying out vehicle departures, circuit and task relevant information in functional module (1205) towards the voice channel of passenger inside and outside vehicle by audio frequency,
(4) in normal vehicle operation process, system in parallel operates as follows: video acquisition functional module (1202) and audio collection functional module (1204) carry 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 process 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; The composite analog video signal that multi-media player function module (1203) Received signal strength processor (1201) exports, is shown by analog video display, and the rolling realizing memory-type digital multimedia is play; The status informations such as GPS module (1209) Real-time Collection car speed, position, carry out the automatic information broadcast of bus station and bus service term towards passenger in conjunction with audio frequency report functional module (1205); The information of associated vehicle current state is shown towards passenger with the form of figure, word by LED display; The information such as car speed, state is uploaded to transit operation central server in real time by wireless network, shows after resolving with the form of electronic chart at transit operation center; The status information such as vehicle location, speed real-time update to network electronic map, to facilitate the public to the real-time query of vehicle-state; When wireless mobile communications module (1207) adopts the module using 3G technology, Wi-Fi module (1208) coordinates with wireless mobile communications module (1207), provides 3G wireless network local free access service towards passenger; Temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range set, system carries out temperature adjustment by voice reminder driver automatically;
(5) after vehicle is reached terminal, system reports vehicle-state by wireless network to transit operation center, handing-over of finishing the work; System according to the service condition of local SD card memory function module (1211) memory space, will determine the need of the data upload in enormous quantities such as audio, video data system acquisition arrived and driving recording to transit operation central server; If desired, then realize communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically audio, video data and driving recording etc. are uploaded to transit operation central server, after having uploaded, remove local related data;
(6) system inquires whether transit operation center has new task automatically, if there is new task, then carries out assignment instructions reception, repeats step (3) ~ (6), if do not have new task, then enters next step operation;
(7) system realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in 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 new version system program, automatically complete the download of redaction program and writing system program memory function module (1212), after system restart, complete program updates;
(8) system realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically log in transit operation central server read the version information of memory-type digital multimedia material and compare with system current version information, when finding that there is redaction Multi-media Material, automatically complete the download of redaction Multi-media Material and write SD card memory function module (1211), displaying service will be carried out 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 this module of autoboot is laid equal stress on new try set up wireless network connect, if normal wireless network can be set up to be connected, then operate according to step (2) ~ (9); If still cannot set up normal wireless network after restarting module to connect, then system reports the audio alert carrying out equipment failure in functional module (1205) towards the voice channel of vehicle driver by audio frequency; If detect wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction, then by wireless network reporting system device fault information, scheduling decision is implemented according to actual conditions, to ensure public transit system safety, Effec-tive Function by transit operation Central Radical.
Further, signal processor (1201) described in step (2) is the core cell of digital signal processing, by DaVinci(Leonardo da Vinci)+FPGA forms, complete gathering the pre-service of the video data obtained and realizing peripheral circuit and DaVinci(Leonardo da Vinci primarily of FPGA) between communication connection, by DaVinci(Leonardo da Vinci) complete encoding and decoding audio and video data process, grid controls and the management of peripheral each functional module.
Further, the monitor video playing function module (1306) described in step (3) towards vehicle driver carry out monitor video real-time display and equipment state adjustment in as human-computer interaction interface; In normal vehicle operation process, the 4CIF resolution video that four road CIF format videos of what monitor video playing function module (1306) showed is video acquisition functional module (1202) Real-time Collection are spliced; When switch for vehicle door, the content that monitor video playing function module (1306) shows automatically switches to the video image of the camera collection towards vehicle get-off door, when normal vehicle operation, and the display 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, first the video data collected completes the synthesis of 4 road CIF format videos to 4CIF resolution video by FPGA, then send DaVinci(Leonardo da Vinci by FPGA); Process such as carrying out compressing, encode, video display, data store or upload in real time.
Further, the wireless mobile communications module (1207) that enforcement wireless network described in step (2) connects, can the module of choice for use GPRS technology, also can the module of choice for use 3G technology; When wireless mobile communications module (1207) uses the module adopting 3G technology, the video data that video acquisition functional module (1202) collects is after signal processor (1201) process, in case of need, transit operation center can be uploaded in real time by 3G network, uploading in real time of video data can be initiated by driver, also can be implemented by transit operation centralized telecontrol.
Further, the audio frequency described in step (2) reports the translation function that functional module (1205) possesses Text To Speech, can implement the voice broadcast work of the text message that transit operation center issues.
Further, the voice broadcast work of the bus station described in step (4) and bus service term manually can also call out the stops under the control of vehicle driver functional module (1302) realize; Be no matter adopt automatic broadcasting or manually call out the stops, the vehicle being in owl run, under the control of temporal logic, is automatically switched off towards voice broadcast work such as the bus station information of outside vehicle and bus service terms.
Further, in step (3) ~ (6) process, function, digital keys and talking handle on wireless mobile communications module (1207), operating terminal (1300) match, real-time voice call can be carried out with wireless telephonic form between vehicle driver and transit operation service centre, vehicle driver and public transport management and running center can be the initiator of call, is obtaining can carrying out real-time voice call after the other side confirms; Driver can also directly use hand-free function to carry out voice call.
Further, the renewal of step (7), the system program described in (8) and Multi-media Material data can also be realized in a manual fashion by SD card memory function module (1211), namely manually the SD card implant system of new version system program will be loaded with, when there being new version system program in systems axiol-ogy to SD card, system automatically completes the download of redaction program and is stored in system program memory module (1212), after system reboot, completion system program updates; When after the SD card implant system that will be loaded with redaction Multi-media Material, system will carry out multimedia programming rolling according to up-to-date Multi-media Material data is play.
As shown in Figure 1, the system realizing the method is made up of power module (1100), main frame (1200) and operating terminal (1300) three part, wherein, described power module (1100) supports the input of 9-36V direct current wide power, mainly comprise Power convert output, mode of operation controls, power network controls and Audio power amplifier four partial function circuit, communicated with main frame (1200) by digital-to-analog interface, realize system front end Power convert, 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 reports 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), enforcement audio, video data gathers, multimedia programming is shown, digital signal processing, vehicle is located in real time, grid controls, the control of radio communication connection and mobile unit, operating terminal (1300) is the Man Machine Interface towards vehicle driver, mainly comprises function of infrared remote control module (1301), manually to 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 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, when bus is finished the work and stopped bus terminus, the public transport video monitoring and the dispatching system that realize the method are in park mode, wait for system wake-up signal during vehicle launch;
After vehicle launch, power module (1100) detects vehicle launch signal, and to main frame (1200) the transmitting system wake-up signal being in park mode, control system enters mode of operation by park mode;
After system enters mode of operation, under the control of signal processor (1201), automatically communication check and state-detection are carried out to each functional module of system and vehicle-mounted controlled plant; After detection completes, if system and equipment are normal, then system is set up radio communication by wireless mobile communications module (1207) with transit operation center and is connected, automatic reporting system state; Simultaneity factor is by sending the normal voice circular of indication equipment towards the voice channel of vehicle driver to driver in voice broadcast function module (1204); If wireless mobile communications module (1207) dysfunction detected, system this module of autoboot is laid equal stress on new try set up wireless network connect, if can set up normal wireless network connect, then operate according to normal flow; If still cannot set up normal wireless network after restarting module to connect, then system reports the audio alert carrying out equipment failure in functional module (1205) towards the voice channel of vehicle driver by audio frequency; If detect wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction, then by wireless network reporting system device fault information, scheduling decision is implemented according to actual conditions, to ensure public transit system safety, Effec-tive Function by transit operation Central Radical;
If system works is normal, vehicle driver passes through 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 transit operation center by wireless network, the confirmation that vehicle driver is finished the work by the task function button such as " beginning ", " end ", " switching ", " confirmation " and " menu " be positioned on operating terminal (1300) and startup, by function of infrared remote control module (1301), the equipment state of system, system time, network are connected, volume etc. of calling out the stops arranges and adjust, make system be in best running status, now video playback capability module (1305) is the interface of man-machine interaction; Meanwhile, system reports the voice broadcast automatically carrying out vehicle departures, circuit and task relevant information in functional module (1205) towards the voice channel of passenger inside and outside vehicle by audio frequency;
In normal vehicle operation process, video acquisition functional module (1202) carries out the collection of four road CIF format videos in real time, first the video data collected send FPGA to carry out the splicing of four road CIF format videos to 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) by the Video back-end interface be positioned on DaVinci (Leonardo da Vinci) on the one hand and is shown in real time, be stored in SD card memory function module (1211) on the other hand, get back to after bus terminus until vehicle and be uploaded to transit operation central server by Wi-Fi wireless network batch in station, when the module of wireless mobile communications module (1207) the employing use 3G technology of system, in case of need, video data can be uploaded to transit operation center in real time by 3G network, show in real time at management and running center, 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) carries out the collection of two-way audio in real time, the voice data collected is after DaVinci (Leonardo da Vinci) process, be stored in SD card memory function module (1211), get back to after bus terminus until vehicle and pass through the transit operation service center server that in station, Wi-Fi wireless network batch is uploaded, meanwhile, GPS module (1209) Real-time Collection car speed, the status informations such as position, coupling system audio frequency reports the voice broadcast work that functional module (1205) realizes bus station and bus service term, the status informations such as the real-time speed of vehicle and position are uploaded to transit operation center by wireless network by system, show with the form of electronic chart after resolving, check for transit operation center, the status informations such as the real-time speed of vehicle and position are also real time updated to network electronic map, facilitate the public to the real-time query of 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 using 3G technology, can also coordinate with Wi-Fi module (1208), build public transport vehicle-mounted WLAN, provide this locality of 3G wireless network free access service towards passenger,
In vehicle normal course of operation, multi-media player function module (1203) is carried out multimedia rolling according to the Multi-media Material be stored in local SD card memory function module (1211) and is play displaying, wherein, the state of broadcasting can be undertaken arranging and adjusting by function of infrared remote control module (1301);
In 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 set, system carries out temperature adjustment by voice reminder driver automatically;
If vehicle operating is the late into the night, when the automatic information broadcast work carrying out bus station and bus service term, automatic closed is carried out the voice channel of voice broadcast by system to outside vehicle crowd, other voice broadcasts are working properly to carry out;
In vehicle operation, for text messages such as the dispatch commands that transit operation center issues, system is reported towards driver or passenger in the form of speech by text-to-speech function;
When vehicle carries out switch gate, the content that video playback capability module (1305) shows automatically switches to the video image of the camera collection towards vehicle get-off door, when normal vehicle operation, and the display of the 4CIF format video that automatically switches back;
In vehicle travel process, when system automatic broadcasting function normally can not complete the voice broadcast work of bus station and bus service term, vehicle driver's functional module (1302) of can manually calling out the stops carries out the manual report work of bus station under manual intervention and bus service term;
In case of need, carry out real-time voice call between vehicle driver and transit operation center, vehicle driver and transit operation center can be the initiators that real-time voice is conversed; In communication process, vehicle driver can converse by choice for use talking handle, and hand-free function also can be used to carry out voice call;
After vehicle is reached terminal, system reports vehicle-state by wireless network to transit operation center, handing-over of finishing the work; System detects the service condition of local SD card memory function module (1211) memory space automatically, if remaining space is nervous, then realize communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically audio, video data and driving recording etc. are uploaded to transit operation central server, after having uploaded, remove local related data, uploading of these data also can be implemented under the command remote control at transit operation center;
System inquires whether transit operation center has new task automatically, if there is new task, then carries out assignment instructions reception, if reenter execution status of task do not have new assignment instructions, then enters next step operation;
System realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in 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 the download of redaction program or Multi-media Material is completed, system program writing system program memory function module (1211) downloaded, program updates is completed after system restart, in SD card in Multi-media Material write SD card memory function module (1211) downloaded, system plays displaying by carrying out multimedia rolling according to up-to-date Multi-media Material,
The renewal of system program and Multi-media Material can also be realized by SD card memory function module (1211) mode manually, namely when detect in system SD card have new version system program time, system reads new version system program and writing system program memory function module (1212) from SD card memory function module (1211) automatically, after system reboot, completion system program updates, when detect in system SD card have redaction Multi-media Material time, system automatically according to redaction Multi-media Material data carry out multimedia programming rolling play;
After completing above work, if do not have new task and other work, system will enter park mode by mode of operation, wake-up waiting automatically.
Above-mentioned embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not limited by the examples; the amendment done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, cutting; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1., based on the public transport multimedia of davinci platform, video monitoring and dispatching method, comprise the steps:
(1), after power module (1100) detects vehicle launch signal, to main frame (1200) the transmitting system wake-up signal being in park mode, control system enters mode of operation by park mode;
(2) after system enters mode of operation, under the control of signal processor (1201), automatically communication check and state-detection are carried out to each functional module of system and vehicle-mounted controlled plant; After detection completes, if system and equipment are normal, then system is set up radio communication by wireless mobile communications module (1207) with transit operation center and is connected, automatic reporting system state; Simultaneity factor is reported in functional module (1205) by audio frequency and is sent the normal voice circular of indication equipment towards the voice channel of vehicle driver to 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 transit operation center by wireless network, vehicle driver is by being positioned at " beginning " on operating terminal (1300), " end ", " switching ", the confirmation that " confirmation " and " menu " task function button is finished the work and startup, by function of infrared remote control module (1301) to the equipment state of system, system time, network connects, volume of calling out the stops and multimedia programming carry out arranging and adjusting, system is made to be in best running status, now, monitor video playing function module (1306) is as the interface of man-machine interaction, system reports the voice broadcast automatically carrying out vehicle departures, circuit and task relevant information in functional module (1205) towards the voice channel of passenger inside and outside vehicle by audio frequency,
(4) in normal vehicle operation process, system proceeds as follows: video acquisition functional module (1202) and audio collection functional module (1204) carry 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 process 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; The composite analog video signal that multi-media player function module (1203) Received signal strength processor (1201) exports, is shown by analog video display, and the rolling realizing memory-type digital multimedia is play; The status information of GPS module (1209) Real-time Collection car speed, position, carries out the automatic information broadcast of bus station and bus service term towards passenger in conjunction with audio frequency report functional module (1205); The information of associated vehicle current state is shown towards passenger with the form of figure, word by LED display; The information of car speed, state is uploaded to transit operation central server in real time by wireless network, shows after resolving with the form of electronic chart at transit operation center; The status information real-time update of vehicle location, speed to network electronic map, to facilitate the public to the real-time query of vehicle-state; When wireless mobile communications module (1207) adopts the module using 3G technology, Wi-Fi module (1208) coordinates with wireless mobile communications module (1207), provides 3G wireless network local free access service towards passenger; Temperature acquisition functional module (1305) Real-time Collection vehicle interior temperature information, if Current Temperatures departs from the temperature range set, system carries out temperature adjustment by voice reminder driver automatically;
(5) after vehicle is reached terminal, system reports vehicle-state by wireless network to transit operation center, handing-over of finishing the work; System will according to the service condition of local SD card memory function module (1211) memory space, determines that data upload in enormous quantities the need of audio, video data system acquisition arrived and driving recording is to transit operation central server; If desired, then realize communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically audio, video data and driving recording are uploaded to transit operation central server, after having uploaded, remove local related data;
(6) system inquires whether transit operation center has new task automatically, if there is new task, then carries out assignment instructions reception, repeats step (3) ~ (6), if do not have new task, then enters next step operation;
(7) system realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in 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 new version system program, automatically complete the download of redaction program and writing system program memory function module (1212), after system restart, complete program updates;
(8) system realizes communicating to connect by Wi-Fi module (1208) and Wi-Fi Hotspot in station, automatically log in transit operation central server read the version information of memory-type digital multimedia material and compare with system current version information, when finding that there is redaction Multi-media Material, automatically complete the download of redaction Multi-media Material and write SD card memory function module (1211), displaying service will be carried out 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 this module of autoboot is laid equal stress on new try set up wireless network connect, if normal wireless network can be set up to be connected, then operate according to step (2) ~ (9); If still cannot set up normal wireless network after restarting module to connect, then system reports the audio alert carrying out equipment failure in functional module (1205) towards the voice channel of vehicle driver by audio frequency; If detect wireless mobile communications module (1207) normal and other modules or vehicle-mounted controlled plant dysfunction, then by wireless network reporting system device fault information, scheduling decision is implemented according to actual conditions, to ensure public transit system safety, Effec-tive Function by transit operation Central Radical.
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, be made up of Leonardo da Vinci's processor+FPGA, completing gathering the pre-service of the video data obtained and the communication connection that realizes between peripheral circuit and Leonardo da Vinci's processor primarily of FPGA, completing encoding and decoding audio and video data process by Leonardo da Vinci's processor, grid controls and the management of peripheral each functional module.
4. the method for claim 1, is characterized in that: the monitor video playing function module (1306) described in step (3) towards vehicle driver carry out monitor video real-time display and equipment state adjustment in as human-computer interaction interface; In normal vehicle operation process, the 4CIF resolution video that four road CIF format videos of what monitor video playing function module (1306) showed is video acquisition functional module (1202) Real-time Collection are spliced; When switch for vehicle door, the content that monitor video playing function module (1306) shows automatically switches to the video image of the camera collection towards vehicle get-off door, when normal vehicle operation, and the display 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, first the video data collected completes the synthesis of 4 road CIF format videos to 4CIF resolution video by FPGA, then send Leonardo da Vinci processor by FPGA; Carry out compressing, encode, video display, data store or upload process 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, the module of choice for use GPRS technology, or the module of choice for use 3G technology; When wireless mobile communications module (1207) uses the module adopting 3G technology, the video data that video acquisition functional module (1202) collects is after signal processor (1201) process, in case of need, transit operation center can be uploaded in real time by 3G network, uploading in real time of video data is initiated by driver, or is implemented by transit operation centralized telecontrol.
7. the method for claim 1, it is characterized in that: the audio frequency described in step (2) reports the translation function that functional module (1205) possesses Text To Speech, implements the voice broadcast work of the text message that transit operation center issues.
8. the method for claim 1, is characterized in that: the voice broadcast work of the bus station described in step (4) and bus service term functional module (1302) of also manually calling out the stops under the control of vehicle driver realizes; No matter be adopt automatic broadcasting or manually call out the stops, the vehicle being in owl run, under the control of temporal logic, is automatically switched off towards the bus station information of outside vehicle and the voice broadcast work of bus service term.
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, real-time voice call is carried out with wireless telephonic form between vehicle driver and transit operation service centre, vehicle driver and transit operation center are the initiators of call, are obtaining namely carrying out real-time voice call after the other side confirms; Driver directly uses hand-free function to carry out voice call.
10. the method for claim 1, it is characterized in that: the renewal of step (7), the system program described in (8) and Multi-media Material data is realized in a manual fashion by SD card memory function module (1211), namely manually the SD card implant system of new version system program will be loaded with, when there being new version system program in systems axiol-ogy to SD card, system automatically completes the download of redaction program and is stored in system program memory module (1212), after system reboot, completion system program updates; When after the SD card implant system that will be loaded with redaction Multi-media Material, system will carry out multimedia programming rolling according to up-to-date Multi-media Material data is play.
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| CN105721840B (en) * | 2016-04-29 | 2019-03-08 | 郑州天迈科技股份有限公司 | The system and method that the video recording of vehicle place fast transmits |
| CN105931477A (en) * | 2016-07-13 | 2016-09-07 | 合肥指南针电子科技有限责任公司 | Traffic safety management system |
| CN109996209A (en) * | 2019-04-12 | 2019-07-09 | 中铁宝桥集团有限公司 | A kind of tour bus passenger service system |
| CN111885541B (en) * | 2020-06-24 | 2024-06-04 | 长沙丰灼通讯科技有限公司 | Wireless access method of intelligent pull ring system |
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