CN203433118U - Public transport-integrated vehicle-mounted intelligent terminal based on Beidou/GPS compatible positioning - Google Patents
Public transport-integrated vehicle-mounted intelligent terminal based on Beidou/GPS compatible positioning Download PDFInfo
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- CN203433118U CN203433118U CN201320500102.0U CN201320500102U CN203433118U CN 203433118 U CN203433118 U CN 203433118U CN 201320500102 U CN201320500102 U CN 201320500102U CN 203433118 U CN203433118 U CN 203433118U
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Abstract
The utility model provides a public transport-integrated vehicle-mounted intelligent terminal based on Beidou/GPS compatible positioning. The intelligent terminal comprises a CPU-based first subsystem and a MCU-based second subsystem. The first subsystem comprises the following modules connected with a CPU unit: a BD2/GPS navigation module which is used to receive navigation signals of a Beidou second-generation navigation system and a GPS to realize double-system compatible positioning, a video/audio processing module responsible for coding and decoding processing of video and audio signals, a communication module for voice and data communication with a wireless communication network, an identity identification module for identifying identity of a driver, and a power supply and power source management module. The second subsystem comprises the following modules connected with an MCU unit: an OBD data acquisition module for acquiring vehicle state information via a vehicle body bus, an one-card module in a communication relationship with a vehicle-mounted one-card card swiping terminal via a RS485 interface to acquire getting-on and getting-off card swiping information of each station, a bus station broadcaster module and the like. The MCU unit of the second subsystem is connected with the CPU unit of the first subsystem.
Description
Technical field
The utility model relate to a kind of take the Big Dipper/GPS compatible positioning as basis, there is all-purpose card POS machine brushing card data, CAN bus data Real-time Collection, statistical study and transmitting function, possess the vehicle intelligent terminal of bus that enriches expansion interface.
Background technology
With the developed country such as American-European, Japanese by comparison, the development of the public transport industry of China is also comparatively slow.And the intelligent level of bus operation do not catch up with, it is manually main operation system that major part still follows old take.
In recent years, China's intelligent public transportation system has started flourish.Vehicle tracking dispatching system has been installed in China's great majority one, tier 2 cities part three line cities on some public bus networks, GPS positioning equipment has been installed on vehicle, can realize to vehicle monitor in real time, the functions such as both-way communication of vehicle and Surveillance center.
Although, China is all obtaining certain achievement aspect intelligent public transportation system construction and equipment development, but the aspect such as integrated, integrated, intelligent of hardware device also exists obvious shortcoming, the public transport vehicle-mounted smart machine of China aspect ubiquity subject matter has at present:
1, along with the increase of public transport vehicle-mounted electronic equipment, equipment room functional redundancy, shortage cooperation, cause overlapping investment, the wasting of resources.
2, common information is not shared, and forms actual information island, and each devices communicating mode is independent, communication cost is high.
3, vehicle intelligent terminal extendability is poor, can not effectively bring into play the effect of convergence and transmission, can not be closely connected with other equipment.
Utility model content
The purpose of this utility model is, in order to overcome above-mentioned technical matters, thereby provides a kind of Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning.
For achieving the above object, the utility model provides a kind of Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning, and described terminal comprises: the first subsystem based on CPU and the second subsystem based on MCU;
Described the first subsystem further comprise be connected with CPU element as lower module: BD2/GPS navigation module, for receiving the navigation signal of the Big Dipper two generations navigational system and GPS, realize dual system compatible positioning, the NMEA formatted data by serial ports outputting standard is for CPU and other modules; Video/audio processing module, processes for being responsible for the encoding and decoding of video and audio signal; Communication module, for the voice with wireless communication networks and data communication, sets up wireless communication link by WiFi or bluetooth; Identification module, for the identity of identification of driver, reads the IC-card institute canned data that records driver information; With power supply and power management module, for power-supply system is managed.
Described the second subsystem further comprise be connected with MCU unit as lower module: OBD data acquisition module, for by Vehicle Body Bus collection vehicle status information; All-purpose card module, this module is communicated by letter with vehicle-mounted all-purpose card card swiping terminal by RS485 interface, and the positional information of utilizing the described Big Dipper/GPS compatible navigation module to provide is obtained the card using information that gets on and off at every station, simultaneously to Surveillance center's transparent transmission trading information data; Station reporting instrument module, realizes automatic broadcasting function for adopting RS485 interface to communicate by letter with station reporting instrument, by RS485 interface, provides real-time locator data for station reporting instrument, can also jump station by car end location active drive station reporting instrument and call out the stops; External interface module, comprises RS232,485 or RJ45 interface, conveniently communicate by letter with the external sensor with standard interface, and carry out data acquisition; Real-time clock module, for maintaining local clock, while carrying out school by the Big Dipper/GPS compatible navigation module; Wherein, the MCU unit of the second described subsystem is connected with the CPU element of described the first subsystem.
Above-mentioned the first subsystem also comprise be connected with CPU element as lower module: inertia device module, for attitude, position and the direction of measuring vehicle; FM module, for receiving FM FM signal; Authorization control module, for being encrypted and deciphering some security information.
Above-mentioned video processing module and DVR and camera are connected in series; Described audio treatment unit is connected with radio antenna with microphone/speaker; Described communication module is connected with MIC with SIM card, 3G antenna.
Above-mentioned all-purpose card module is connected with MCU unit by RS485 interface respectively with station reporting instrument module; Described MCU unit is connected by UART with CPU element.
Above-mentioned CPU element is connected with power supply/power management module, and this power supply/power management module is connected and is connected with MCU unit again.
Compared with prior art, technical advantage of the present utility model is:
The vehicle intelligent terminal that the utility model relates to, as the convergence terminal of vehicle electronics, has abundant interface, can expand several functions and data transfer mode, is convenient to overall monitor and the data transmission of car inner electronic equipment.All-purpose card brushing card data, vehicle status data etc. can be converged, pack, transmit, unify transmission mode, reduce the wasting of resources; For vehicle electronics provides time location information, make each equipment energy coordinated, can be backstage provides several data source to carry out intelligent analysis application, for technical foundation has been established in intelligent bus construction.
Accompanying drawing explanation
Fig. 1 is the structure composed figure of technical solutions of the utility model;
Fig. 2 is the inside connection layout of the hardware of technical solutions of the utility model.
Embodiment
Below in conjunction with drawings and Examples, method described in the utility model is elaborated.
Car-mounted terminal of the present utility model adopts service-oriented hardware design, software architecture and the modular design based on total line traffic control.
General frame of the present utility model is as shown in Figure 1:
Car-mounted terminal hardware structure comprises: the second subsystem that the first subsystem that the CPU of take is core and the MCU of take are core.The first subsystem mainly comprises BD2/GPS navigation module, Audio and Video processing module, communication module, identification module, the functional modules such as power supply and power management module; The second subsystem is from system, is subject to the control of the first subsystem, and the second subsystem comprises: the functional modules such as OBD data acquisition module, all-purpose card module, station reporting instrument module, external interface module, real-time clock module.
Car-mounted terminal adopts the Big Dipper/GPS navigation module, and this module coordinates with inertia device supports difference location, can coordinate inertial navigation to realize high reliability navigator fix, in conjunction with map matching technology, realizes high-precision fixed bit function.
Terminal is communicated by letter with vehicle-mounted all-purpose card card swiping terminal by RS485 interface, utilizes positional information auxiliary, the card using information of getting on or off the bus at the every station of Real-time Obtaining; The data penetration transmission function that simultaneously possesses Transaction Information.Here communication interaction agreement and flow process with all-purpose card card swiping terminal have been designed, as associated description hereinafter.
Terminal adopts RS485 interface to communicate by letter with station reporting instrument and realizes automatic broadcasting function; Can provide real-time locator data for station reporting instrument by RS485 interface, also can jump station by car end location active drive station reporting instrument and call out the stops; Self can realize automatic broadcasting function car end, can directly export the prompt tone of calling out the stops.
Terminal is utilized OBD(On-board Diagnostic) protocol conversion chip, realize vehicle bus Physical layer, communication layers agreement, only need to utilize MCU to realize application layer data and extract; Can carry out like this VCM Vehicle Condition Monitoring, fault diagnosis, ECU upgrading, the distance travelled of Real-time Collection monitoring vehicle, the speed of a motor vehicle, throttle, brake, engine operating condition and turn to, the information such as switch gate.
Terminal can be position and the temporal information that vehicle-mounted other electronic equipments provide standard, by RS232 or RS485 interface, export NMEA standard time, positional information, the exportable 1pps correcting delay signal of car end, supplies the equipment time synchronized such as all-purpose card terminal, station reporting instrument or obtains positional information.
Reserved abundant interface, accessible public transit vehicle various electronic, such as LED screen, station reporting instrument etc. in CAN, Bus Card, car, can be ambient brightness (backlight control), cigarette sense, the external sensors such as oil consumption detecting apparatus and vehicle-mounted other electronic equipments, RS232 is provided, 485, USB, the expansion interfaces such as RJ45.Support much information transmission means, as GPRS, 3G, WiFi etc.; Software is easy to secondary development, and function is easily expanded, according to demand flexible customization; Terminal can be accessed by a plurality of information platforms, and the input information output interface of standard is provided.
Embodiment
Intelligent vehicle mounted terminal based on Big Dipper compatibility, in conjunction with plurality of devices such as satnav (BDS/GPS is compatible), vehicle running recording instrument, vehicle-mounted hard disks video recording (DVR), 3G mobile communication, RFID Card Reader, navigation amusement, vehicle condition detections, by integrated design, in an equipment, realize, can improve equipment dependability.By combining with mobile interconnecting application platform, can realize the security monitoring management of vehicle in use and multiple value-added service.
Intelligent vehicle mounted terminal based on Big Dipper compatibility adopts service-oriented hardware design, software architecture and the modular design based on total line traffic control.
Hardware platform adopts AM335X ARM Cortex-A8 processor, and operating system adopts Linux embedded OS, kernel version 2 .6.28.Display screen adopts 6.2 cun of electric resistance touch screens, screen resolution 800x480.Satellite navigation module adopts BD2/GPS compatible modules, emerging module during communication module adopts.Terminal structure size is for front installing meter.
Hardware configuration be take the structural design that single CPU is control subject as core, MCU; MCU be only responsible for part power management function and with being connected of Vehicle Body Bus.CPU is responsible for all module physical connections and data Layer foundation, unified storage, scheduling and the use of all data in completion system.
As shown in Figure 2, the first subsystem that the CPU of take is core is connected with the MCU unit of inertia device, BD2/GPS navigation module and the second subsystem by uart interface the inside structure of hardware, and the first subsystem is also respectively by BT656 interface, I
2s interface, GPIO interface are connected with video processing module, audio processing modules and authorization control module; The MCU unit of described the second subsystem is connected with temperature sensor, OBD data acquisition module, all-purpose card module, station reporting instrument module by each interface respectively, and the CPU element of the first subsystem to MCU unit sending controling instruction, and then is controlled the power operation of each module by power supply and power management module by real-time clock.
The software architecture of car-mounted terminal as shown in Figure 3.
Car end software architecture mainly comprises operating system nucleus and driving, and application service framework and specifically apply three parts adopts modular design, can satisfying personalized customization requirement.Below will introduce respectively specific embodiments of the present utility model:
1, the Big Dipper/GPS compatible positioning and the output of normal place temporal information
The Big Dipper locating module HX6330 that car-mounted terminal employing has China's independent intellectual property right is the high-performance integration module of a support Big Dipper II (B1) and GPS L1, it is a complete satnav receiving equipment, possesses the ability that the Big Dipper and GPS positioning free switch, compensate mutually, possess comprehensive function simultaneously, can meet strict demand and the personal consumption needs of specialty location.This product can be applicable to develop multiple navigation terminal product as auto navigation, Car Security System, vehicle monitoring and other satnav application etc.
Car-mounted terminal obtains by serial ports and the Big Dipper/GPS compatible navigation module communication completing place information, the Big Dipper/GPS compatible modules can be real-time the utilize Big Dipper and GPS navigation system signal calculate the information such as position, time, direction of vehicle, and send to car end mainboard by the NMEA agreement of standard.Car-mounted terminal is combined other data such as positional information and energy consumption to form GPRS packet, by wireless communication link, is sent to Surveillance center.
The RS232 of navigation module output pin connection standard and RS485 interface, the location information data of outputting standard, for other mobile units provide location-based service; The 1PPS pin of navigation module is also drawn, as high precision to time signal, while can be other equipment schools after expansion.
2, the Real-time Obtaining of all-purpose card brushing card data
The utility model employing standard 485 Interface realization vehicle intelligent terminals are communicated by letter with all-purpose card POS machine, and 485 interfaces are generally the standard configurations of car-mounted terminal and all-purpose card POS machine.
Car-mounted terminal provides position/temporal information by 485 interfaces to POS machine, makes timing and the UTC time synchronized of each POS machine; POS machine is jumped station after receiving order automatically, has saved the every station of driver and has pressed the worry of jumping station key.For twice vehicle of swiping the card, the area that city one-card is more universal, car-mounted terminal can provide reliable passenger flow data collection, for the vehicle of 1 charging of swiping the card, needs by estimating or passenger flow counter being installed and being calculated passenger flow, and car-mounted terminal provides communication interface for passenger flow counter.
3, OBD vehicle status data gathers
By vehicle-mounted OBD interface, obtain vehicle condition state, in real time to mileage, speed, throttle and turn to, the information such as switch gate monitors and is presented at user interface; Also can carry out ECU control program upgrading (optional ，Xu producer communications protocol is provided).
Protocol conversion chip can have been supported 16 kinds of conventional automobile communication agreements at present, can carry out diagnosis communication with the various control modules of present most of automobile.Can support most of automobile OBDII and special-purpose diagnostic application.The agreement of this protocol conversion chip support has:
Table 1 supported protocol table
| J1850PWM | 41.6kb/s?FORD |
| J1850VPW | 10.4kb/s?GM/Chrysler |
| ISO9141-2 | 5baud init auto-baud |
| ISO14230（KWP2000） | 5Buad?init10.4kb/s |
| ISO14230（KWP2000） | fast?init10.4kb/s |
| ISO15765 | ID11bits500KBPS |
| ISO15765 | ID29bits500KBPS |
| ISO15765 | ID11bits250KBPS |
| ISO15765 | ID29bits250KBPS |
| J1939 | ID29bits250KBPS |
4, Vehicle station name announcing device communication interface
According to < < QC/T705-2004 passenger vehicle electronic station-reporting unit > > standard code, employing RS485 Interface realization automatic stop reporter is communicated by letter with external unit, in light of the circumstances, provide three kinds of solutions:
● car-mounted terminal sends positional information by 485 interfaces to station reporting instrument, adopts standard NMEA form, and station reporting instrument is selected report information according to positional information;
● car-mounted terminal drives station reporting instrument according to positional information, to station reporting instrument, send to jump station, the instruction such as call out the stops, and order format is as shown in table 5:
Table 5 station reporting instrument receives order format
Wherein command field comprises: TIZH, jumps station instruction; BAZH, the instruction of calling out the stops; TISHx, hint instructions x.
The integrated station reporting instrument function of car-mounted terminal, directly output is reported voice to vehicle speakers.
5, car-mounted terminal expansion interface
Car-mounted terminal has abundant external interface, has high dirigibility and extensibility:
Table 2 car-mounted terminal interface function table
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described.Although the utility model is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or is equal to replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. the Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning, described terminal comprises: the first subsystem based on CPU and the second subsystem based on MCU;
Described the first subsystem further comprise be connected with CPU element as lower module:
BD2/GPS navigation module, for receiving the navigation signal of the Big Dipper two generations navigational system and GPS, realizes dual system compatible positioning, and the NMEA formatted data by serial ports outputting standard is for CPU element and following module;
Video/audio processing module, processes for being responsible for the encoding and decoding of video and audio signal;
Communication module, for the voice with wireless communication networks and data communication, sets up wireless communication link by WiFi or bluetooth;
Identification module, for the identity of identification of driver, reads the IC-card institute canned data that records driver information; With
Power supply and power management module, for managing power-supply system;
Described the second subsystem further comprise be connected with MCU unit as lower module:
OBD data acquisition module, for passing through Vehicle Body Bus collection vehicle status information;
All-purpose card module, this module is communicated by letter with vehicle-mounted all-purpose card card swiping terminal by RS485 interface, and the positional information of utilizing the described Big Dipper/GPS compatible navigation module to provide is obtained the card using information that gets on and off at every station, simultaneously to Surveillance center's transparent transmission trading information data;
Station reporting instrument module, realizes automatic broadcasting function for adopting RS485 interface to communicate by letter with station reporting instrument, by RS485 interface, provides real-time locator data for station reporting instrument, can also jump station by car end location active drive station reporting instrument and call out the stops;
External interface module, comprises RS232,485 or RJ45 interface, conveniently communicate by letter with the external sensor with standard interface, and carry out data acquisition;
Real-time clock module, for maintaining local clock, while carrying out school by BD2/GPS navigation module piece;
Wherein, the MCU unit of the second described subsystem is connected with the CPU element of described the first subsystem.
2. the Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning according to claim 1, is characterized in that, described the first subsystem also comprise be connected with CPU element as lower module:
Inertia device module, for attitude, position and the direction of measuring vehicle;
FM module, for receiving FM FM signal;
Authorization control module, for being encrypted and deciphering some security information.
3. the Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning according to claim 1, is characterized in that, described video processing module and DVR and camera are connected in series;
Described audio treatment unit is connected with radio antenna with microphone/speaker;
Described communication module is connected with MIC with SIM card, 3G antenna.
4. the Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning according to claim 1, is characterized in that, described all-purpose card module is connected with MCU unit by RS485 interface respectively with station reporting instrument module;
Described MCU unit is connected by UART with CPU element.
5. the Integrative Public Transit vehicle intelligent terminal based on the Big Dipper/GPS compatible positioning according to claim 1, is characterized in that, described CPU element is connected with power supply/power management module, and this power supply/power management module is connected and is connected with MCU unit again.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103914959A (en) * | 2014-03-17 | 2014-07-09 | 深圳市元征科技股份有限公司 | Diagnostic connector based on wireless communication technology |
| CN103913754A (en) * | 2014-04-25 | 2014-07-09 | 航天科技控股集团股份有限公司 | Data transparent-transmission method of dual-mode data transparent-transmission device based on Beidou and GPS |
| CN104618173A (en) * | 2014-12-12 | 2015-05-13 | 广西科技大学 | Wireless data transmission module testing method |
| CN104916154A (en) * | 2015-05-14 | 2015-09-16 | 山东大学 | Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof |
| CN105844945A (en) * | 2016-06-04 | 2016-08-10 | 陈福平 | Unsupervised learning-based real-time public transportation dynamic scheduling method under cloud platform environment |
| CN106355680A (en) * | 2016-09-27 | 2017-01-25 | 江苏罗思韦尔电气有限公司 | Internal data exchange device and method of driving recorder terminal |
| CN108045332A (en) * | 2017-12-15 | 2018-05-18 | 东风汽车电子有限公司 | A kind of Big Dipper is compatible with board information terminal |
| CN110301098A (en) * | 2017-02-14 | 2019-10-01 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Compensator, for running the electronic-circuit device and antenna assembly of an antenna |
| CN110662171A (en) * | 2019-10-11 | 2020-01-07 | 惠龙易通国际物流股份有限公司 | Processing method and system for vehicle |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103914959A (en) * | 2014-03-17 | 2014-07-09 | 深圳市元征科技股份有限公司 | Diagnostic connector based on wireless communication technology |
| CN103913754A (en) * | 2014-04-25 | 2014-07-09 | 航天科技控股集团股份有限公司 | Data transparent-transmission method of dual-mode data transparent-transmission device based on Beidou and GPS |
| CN103913754B (en) * | 2014-04-25 | 2016-03-30 | 航天科技控股集团股份有限公司 | Based on the data analysis method of the data penetration transmission method of the Big Dipper and GPS dual-mode data penetration transmission device |
| CN104618173A (en) * | 2014-12-12 | 2015-05-13 | 广西科技大学 | Wireless data transmission module testing method |
| CN104916154A (en) * | 2015-05-14 | 2015-09-16 | 山东大学 | Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof |
| CN104916154B (en) * | 2015-05-14 | 2017-06-16 | 山东大学 | A kind of compatible Big Dipper CORS public transport precise positioning systems and its method of work |
| CN105844945A (en) * | 2016-06-04 | 2016-08-10 | 陈福平 | Unsupervised learning-based real-time public transportation dynamic scheduling method under cloud platform environment |
| CN106355680A (en) * | 2016-09-27 | 2017-01-25 | 江苏罗思韦尔电气有限公司 | Internal data exchange device and method of driving recorder terminal |
| CN110301098A (en) * | 2017-02-14 | 2019-10-01 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Compensator, for running the electronic-circuit device and antenna assembly of an antenna |
| CN110301098B (en) * | 2017-02-14 | 2022-02-18 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Compensator, electronic circuit arrangement for operating an antenna, and antenna arrangement |
| CN108045332A (en) * | 2017-12-15 | 2018-05-18 | 东风汽车电子有限公司 | A kind of Big Dipper is compatible with board information terminal |
| CN110662171A (en) * | 2019-10-11 | 2020-01-07 | 惠龙易通国际物流股份有限公司 | Processing method and system for vehicle |
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