CN101799979B - All-weather driving service system - Google Patents
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Abstract
The invention relates to an all-weather driving service system, which comprises a centralized-control center server platform and a front-end portable vehicle-mounted terminal, wherein the front-end portable vehicle-mounted terminal comprises a CPU consisting of a main processor and a communication module, an SDRAM, an NAND FLASH and an NOR FLASH; a service center number and a network address of the centralized-control server platform are built in the front-end portable vehicle-mounted terminal; an antenna is connected to a radio frequency interface of the communication module in the CPU; the CPU is connected with a GPS chip through a serial port; and the CPU is also connected with a crystal oscillator and clock circuit. The all-weather driving service system integrates multiple functions, such as global satellite positioning, floating vehicle data acquisition, wireless data communication, real-time traffic navigation, weather navigation, voice access service and the like, has complete functions, is quite convenient to operate, ensures driving convenience and safety to the maximum, and can be applied to the fields of highways, city roads, waterway transportation and the like.
Description
Technical field
The present invention relates to a kind of navigational system, more particularly, relate to a kind of all-weather driving service system.
Background technology
By general GPS equipment, the motorist can according to the shortest optimal route of destination choice garage distance, avoid going a long way unnecessarily.But, static map can't reflect full and accurate dynamic road condition information, and in traffic congestion section in rush hour, the navigation feature of GPS also can't be brought into play its advantage.Show that according to Chinese transportation net statistics the not enough 20km/h of the average speed of the motorist in the cities such as China Beijing, Shanghai in peak period on and off duty consumes per capita 2～3 hours every day and was used for road traffic.Because traffic congestion, the automobile long period is in the low speed driving state, and it is nearly 50% that the gasoline consumption meeting increases when normally travelling, and the exhaust emissions amount is also far above normal transport condition.Owing to block up, the urban road utilization factor is down to 20%.Take in Beijing as example, annual because block up that time waste, the energy that causes consumes excessively, loss that environmental pollution, the low inferior problem of road utilization rate cause, amount to Renminbi up to 13,000,000,000 yuan.For the motorist, improve vehicle to the grasp of traffic route and road conditions, obtain real-time road condition information, will be conducive to the driver and avoid in advance blocking up and control section, alleviate the traffic congestion situation.What need when yet people drive a vehicle is not only route guidance, such as weather condition, road real time status, traffic safety etc.Chinese invention patent application numbers 200810141016.9 discloses a kind of overspeed proof monitoring and recording device, and the function of overspeed proof monitoring is provided; Chinese invention patent application number 02791511.3 discloses a kind of highway foggy weather vehicle navigation apparatus, but it is a kind of remedial measures after running into inclement weather, still there is the driving unsafe factor, if can understand as early as possible the real-time weather condition of road, the weather that just can avert danger selects a safest route for driving; Chinese invention patent application 200610134395.X discloses a kind of express highway all-way monitoring device based on integrated navigation; But above such device all only has simple function, if all buy, except the problems such as cost and placement space, maximum problem is exactly to be inconvenient to operate, and the driver is divert one's attention, and this is a kind of huge threat to traffic safety.
Summary of the invention
The problem to be solved in the present invention is: overcome the difficult point of prior art, provide a kind of multiple functional, simultaneously operation is all-weather driving service system extremely conveniently.
Technical scheme of the present invention is such:
A kind of all-weather driving service system, comprise centralized control center's server platform, front end portable vehicle mounted terminal, described front end portable vehicle mounted terminal comprises the CPU that primary processor and communication module form, also comprise the SDRAM that links to each other with CPU by parallel data bus line respectively, NAND FLASH, NOR FLASH, described front end portable vehicle mounted terminal is built-in with service centre's number and the server platform network address, centralized control center, radio frequency interface in CPU on the communication module is connected to antenna, CPU is connected with the GPS chip by serial ports, and CPU also is connected with crystal oscillator and clock circuit.
Described front end portable vehicle mounted terminal also comprises power supply, power supply is connected with respectively management of charging and discharging circuit, power supply and watchdog circuit, be CPU power supply by power supply and watchdog circuit, CPU also is provided with the MicroUSB interface, and be connected with the management of charging and discharging circuit, be connected with button and LED light on the I/O mouth of CPU, described GPS built-in chip type has antenna or external antenna interface, and CPU connects microphone and audio A/D, audio frequency amplification and microphone circuit by universal serial bus respectively.
Communication module among the front end portable vehicle mounted terminal CPU is GSM/GPRS/CDMA 1X/TD-SCDMA/WCDMA/CDMA2000 console module, is provided with the SIM card slot on the communications platform module.
Described button comprises key hard of hearing, PTT key, ON/OFF switch, reset key.
Described front end portable vehicle mounted terminal is built-in with information autostore program, PTT program.
Described information autostore program can arrange the information that autostore receives in the certain hour interval of front end portable vehicle mounted terminal in 1 to 5 minute.
Described front end portable vehicle mounted terminal also comprises external power supply, and described external power supply is power interface or external power supply box.
Described NAND FLASH capacity is not less than 1GB.
The platform software database of centralized control center's server platform adopts SQL Server, use the networking of C/B/S framework, the platform software database adopts modular design, the access of centralized control center's server platform supports that speech, TCP/IP data connect, Word message, and described platform software support supports disk array, two network interface card, gigabit networking communication, NAT private network to pass through.
Described centralized control center server platform software, support remote online firmware software upgrading and the maintenance of front-end equipment, support remote online parameter modification and the setting of front-end equipment, application layer can be realized microphone voice recording and coding automatically, with task scheduling and data distribution module, support the multiple servers cascade network in the same service centre, support multi-level multi-format Vector Electronic Map, the function of support unit Tachographs, support the historical track information in the long-range extraction front end portable vehicle mounted terminal, provide and other maps, the data-interface of navigation software producer, described centralized control center server platform software support data retrieval and statistical report form, support many grades, the user management of many authorities, support the optimisation technique design of thread pool and the memory pool of completing port, supporting database connection pool optimisation technique provides CP content-data interface, and single or grouping management is supported in the management of access device.
Beneficial effect of the present invention is as follows:
All-weather driving service system integrates the several functions such as global positioning satellite, Floating Car information acquisition, wireless data communications, real-time road navigation, weather condition navigation, audio access service, multiple functional, operate extremely convenient and swift, guaranteed that to greatest extent driving is convenient, safety, and can apply to the fields such as highway, city highway, water transportation.
Description of drawings
Fig. 1 is networking structure synoptic diagram of the present invention;
Fig. 2 is the theory diagram of car front end portable vehicle mounted terminal mounted terminal of the present invention;
Fig. 3 is the framework synoptic diagram of centralized control center of the present invention server platform software;
Fig. 4 is the process flow diagram of service registry and affirmation;
Fig. 5 is the process flow diagram of expressway real-time road condition information service;
Fig. 6 is the process flow diagram of " PTT " emergency call service;
Fig. 7 is the process flow diagram of comprehensive living information service;
Fig. 8 is the process flow diagram of expressway navigation Service;
Fig. 9 is the process flow diagram of weather warning service;
Figure 10 is the process flow diagram of fast monitor service of transfiniting;
Figure 11 is the process flow diagram of driving vehicle spacing reminding service;
Figure 12 is the flow process that service is nullified.The business process map of major function of the present invention.
Specific implementation method
Below in conjunction with accompanying drawing implementation method of the present invention is elaborated:
Fig. 1 is networking structure synoptic diagram of the present invention, and all-weather driving service system is comprised of main functional modules such as vehicle mounted portable terminal, service centre's platform software, call center's seat, data typing clients.The GSM/GPRS wireless network is adopted in communicating by letter between vehicle mounted portable terminal and the service centre platform software, communication mode comprises call voice, SMS messaging breath or based on three kinds of the TCP/IP packets of GPRS/CDMA 1X/TD-SCDMA/CDMA2000/WCDMA wireless network etc., is bidirectional data communication.Communicating by letter between call center's seat, data typing client and the service centre platform software is based on the two-way TCP/IP data interaction of LAN (Local Area Network) LAN or wide area network Internet.
Fig. 2 is the theory diagram of car front end portable vehicle mounted terminal mounted terminal of the present invention, described front end portable vehicle mounted terminal comprises the CPU that primary processor and communication module form, also comprise SDRAM, the NAND FLASH, the NOR FLASH that link to each other with CPU by parallel data bus line respectively, described front end portable vehicle mounted terminal is built-in with service centre's number and the server platform network address, centralized control center, radio frequency interface in CPU on the communication module is connected to antenna, CPU is connected with the GPS chip by serial ports, and CPU also is connected with crystal oscillator and clock circuit.Described front end portable vehicle mounted terminal also comprises power supply, power supply is connected with respectively management of charging and discharging circuit, power supply and watchdog circuit, be CPU power supply by power supply and watchdog circuit, CPU also is provided with the MicroUSB interface, and be connected with the management of charging and discharging circuit, be connected with button and LED light on the I/O mouth of CPU, described GPS built-in chip type has antenna or external antenna interface, and CPU connects microphone and audio A/D, audio frequency amplification and microphone circuit by universal serial bus respectively.Communication module among the front end portable vehicle mounted terminal CPU is the GSM/GPRS/CDMA1X/TD-SCDMA/WCDMA/CDMA2000 console module, is provided with the SIM card slot on the communications platform module.Described button comprises key hard of hearing, PTT key, ON/OFF switch, reset key, acknowledgement key.Described front end portable vehicle mounted terminal is built-in with information autostore program, PTT program.
The car-mounted terminal of present embodiment is the GSM/GPRS version, CPU adopts the MTK6255 nest plate of Lian Fake company, by parallel data bus line and SDRAM and NAND FLASH, NOR FLASH links together, circuit adopts lithium battery power supply, normal voltage is 3.7V, realize voltage transitions by power circuit, for whole circuit provides two kinds of voltages, a kind of is the core voltage of CPU, a kind of is the I/O voltage of CPU, and simultaneously watchdog circuit is realized the Real-Time Monitoring to CPU working condition and supply voltage, in the use hard reset system of necessity to avoid the phenomenon that crashes, press reset key, realize resetting of system; The external data-interface of terminal is realized by MicroUSB, it itself is exactly the Peripheral Interface of CPU, simultaneously, also utilize MicroUSB to realize charging inlet to internal battery, and designed safe handling and the life-span of special management of charging and discharging circuit to guarantee battery.The antenna of radio communication directly is connected on the radio frequency interface of MTK6255 nest plate.
For CDMA 1X and 3G version, be that from the difference of GSM/GPRS version primary processor is different with communication module, other Peripheral Interfaces are all identical with expanded circuit.The primary processor of these two versions adopts the ARM chip, possesses usb host interface and UART interface, the wireless communication module of can directly being connected with CDMA 1X, TD-SCDMA, CDMA2000 and WCDMA is connected, and moves simultaneously built-in Linux operating system to realize bottom layer driving and the control to the 3G communication module in arm processor.Wherein the module of CDMA 1X adopts the EM200 of Huawei, the module of TD-SCDMA adopts the LC6311 of LeadCore connection core company, the CDMA2000 module adopts the EM660 of Huawei, and the WCDMA module adopts the EM770 of Huawei Company, the compatible GSM/GPRS/WCDMA network of this module.
Include the GPS chip in the circuit, adopt the E580 module of the easy sieve information in Shanghai, and with the external antenna interface of built-in gps antenna and reservation, the GPS chip is communicated by letter with the CPU realization by the UART universal asynchronous serial of LVTTL level, communication baud rate is 9600bps.Crystal oscillator and clock circuit adopt active crystal oscillator, and the reference clock signal of CPU work and the reference clock signal that the RTC Real Time Clock System needs are provided.Button and LED light partly are connected on the GPIO universal input/output interface of CPU, and the mode of CPU by poll and virtual interruption realizes the detection to key-press status, and according to work at present state control LED indication.
Include mini microphone and the audio A/D of collection and digitized voice signal in the circuit, carry audio amplifier circuit, CPU realizes its control by the I2S universal serial bus.Because there is requirement in system to the size of output voice signal, special audio power amplifying circuit and loudspeaker have therefore been designed.
The vehicle running recording instrument function of hardware terminal of the present invention is supported vehicle location and the running information record every 1-5 minute, can in internal storage space, record the Vehicle Driving Cycle historical information (needing approximately the memory headroom about the 10M byte) that is no less than 500,000, defaultly be spaced apart 3 minutes, mainly be by the built-in timer of CPU, just produced an event interrupt every 3 minutes, it interrupts responder is exactly to read current GPS positional information and store in the internal memory of Circuits System, in case this part memory block is full, system is to automatic cycle covering recorded information the earliest.The time of logging interval is shorter, then needs the data volume of storing larger, requires built-in large capacity NAND FLASH storage space to be not less than 1G, and the built-in large capacity NAND FLASH storage space of present embodiment is 1G.
The lithium battery of the built-in 2400mAH of the present invention, simultaneously with the external charging interface, also can be used for outer connecting battery box, the average power consumption of hardware terminal involved in the present invention is 40mA under the default mode of operation, internal battery can make its work 60 hours, add outer connecting battery box and be not less than the delivery of 4000mAH, can guarantee that the continuous working period of end product is not less than 7 days.
Fig. 3 is the framework synoptic diagram of centralized control center of the present invention server platform software, the platform software database of described centralized control center server platform adopts SQL Server, use the networking of C/B/S framework, the platform software database adopts modular design, the access of centralized control center's server platform supports that speech, TCP/IP data connect, Word message, and described platform software support supports disk array, two network interface card, gigabit networking communication, NAT private network to pass through.
Described centralized control center server platform software, support remote online firmware software upgrading and the maintenance of front-end equipment, support remote online parameter modification and the setting of front-end equipment, application layer can be realized microphone voice recording and coding automatically, with task scheduling and data distribution module, support the multiple servers cascade network in the same service centre, support multi-level multi-format Vector Electronic Map, the function of support unit Tachographs, support the historical track information in the long-range extraction front end portable vehicle mounted terminal, provide and other maps, the data-interface of navigation software producer, described centralized control center server platform software support data retrieval and statistical report form, support many grades, the user management of many authorities, support the optimisation technique design of thread pool and the memory pool of completing port, supporting database connection pool optimisation technique provides CP content-data interface, and single or grouping management is supported in the management of access device.
The access of SMS gateway accessing module, phone, TCP/IP network connection be respectively for three kinds of different access waies of end product, different task distribution and scheduler module according to access way, data and instruction are distributed to different functional modules are processed.The realization of all application functions of platform software is based on data transmitting-receiving and management of process module all, mutual by with real-time early warning and monitoring modular, can realize weather warning, the real-time functions such as the speed that transfinites prompting, spacing prompting, mutual by with voice seat call module, cooperate voice recording, can realize that all access the business function that comprises " PTT " based on phone.The various information that terminal GPS information classification logging modle receiving terminal from data transmit-receive and management of process sends, according to storing in the corresponding database table after position, speed, the direction classification, equipment control, maintenance and online upgrading module realize the unified management to all front-end equipments, comprise setting parameter, modification, firmware upgrading etc.Navigation module is realized driving guide and the expressway navigation in misty rain sky, and the dynamic display module of electronic chart and track is used for the historical path of terminal is recorded, inquires about, dynamically shown etc., supports many grades map vector.
Because it is a lot of that Platform Server is used for the content of storage, for ease of administering and maintaining, software is divided into different forms according to data type with it, and wherein terminal information table is used for ID number of each online terminal of record, the number of vncsion history, associated vehicle information, parameter current setting value, record of examination, built-in SIM card etc.; The track of vehicle table is used for periodic location information, velocity information and the travel direction of all vehicles in the record certain hour; The traffic information table is used for record and collects through various channels the real-time road condition information of gathering and editing, such as anomalous weather situation, time, highway section, and for another example reason of blocking up in certain highway section, time, position, unusual releasing time etc.; The living information information table is used for the relevant data of some amusements of storage, such as MP3 music, cross-talk, joke etc.; Road management relevant information table is used for the GPS positional information of speed-limiting messages, road information and the respective stretch of each bar road of storage; The system prompt information table is used for the compression data file of storage system prompt voice commonly used, such as " you exceed the speed limit, please note safety traffic " etc., only needs when needed read from table and sends to terminal and get final product; The Terminal Service history table is used for the each hour of log-on of serving of each terminal of storage, finishes service time etc.
All client accesses of platform software comprise telephone line service, the inquiry of historical data and Data Enter etc., all the mode by Web Server realizes, this by one independently module realize, this module connects with system database simultaneously, realizes the record queries of various data and writes.
The connection of 1000 hardware terminals of the concurrent support of platform software involved in the present invention with communicate by letter, support that at least 10000 terminals are online, this mainly is based on the technology such as completing port, thread pool optimization, memory pool optimization, database connection pool optimization and realizes, need simultaneously to move the support of the server hardware of this platform software, the Typical Disposition internal memory is not less than 2G, CPU frequency is not less than 2.75G, double-core preferably, possesses the gigabit networking access, the internal memory that is configured to 4G that the present invention uses, CPU is Intel Core 2E8400.
Fig. 4 to Figure 12 is the key business process of data and command communication between the Platform Server of institute of the present invention major function and the car-mounted terminal, also is the workflow of car-mounted terminal embedded software and Platform Server software simultaneously.In the present invention, platform software is based on Windows series operating system, compatible Windows 2000, Windows2003, Windows XP, Windows Vista, Windows 2008 Server etc., development environment is Visual C++, and database adopts SQL Server, and the CPU of car-mounted terminal adopts the ucLinux embedded OS, the kernel version is 2.4, the realization of same employing C language design is communicated by letter with platform software, and compiler is gcc, and version is 3.4.
Wherein, Fig. 4 is the process flow diagram of service registry and affirmation: press the ON/OFF switch, starting outfit; Through initialization, self check, the simple and easy operation instruction of broadcast; Then dial up on the telephone and be connected to service centre's platform, as the failure of dialling, carry out the repetition dial attempt, until dial-up success; After the dial-up success, equipment voice suggestion user's successful connection and button are confirmed service, and as unconfirmed in one minute, then equipment is in the wait acknowledge state; After confirming successfully, device-to-server sends the data such as the current positional information of vehicle, travel speed, direction; Equipment obtains server platform the global parameter of this equipment is set and renewal; After renewal was finished, voice suggestion had begun the real-time road service; Then be in holding state, wait for next step operation.
Fig. 5 is the process flow diagram of expressway real-time road condition information service: the device-to-server platform sends heartbeat packet and GPS information; Server platform is retrieved the traffic information relevant with this GPS information from database; Send this information to terminal device; Terminal device is stored this information and is passed through voice broadcast; And continue to server platform transmission heartbeat packet and GPS information and detect to have or not order hard of hearing; Press key hard of hearing such as the user, the nearest traffic information of then replaying is replayed and is finished rear equipment continuation to server platform transmission heartbeat packet and GPS information and detect to have or not order hard of hearing.
Fig. 6 is the process flow diagram of " PTT " emergency call service: equipment equipment under holding state detects whether the PTT order is arranged; As press the PTT key, terminal stops the GPRS data communication, and automatic poking beats affair call center phone into submission; Servicing call center the seat attendant receive calls, and provides online required service according to customer requirements; After finishing this service, the terminal device on-hook, and rebulid data TCP/IP with server and be connected, and be in holding state.
Fig. 7 is the process flow diagram of comprehensive living information service: equipment equipment under holding state detects whether the PTT order is arranged; As press the PTT key, terminal stops the GPRS data communication, and automatic poking beats affair call center phone into submission; Servicing call center the seat attendant receive calls, and the users demand is also sought corresponding information from database; After this service finishes, the terminal device on-hook, and rebulid data TCP/IP with server and be connected; The information data that terminal reception server platform sends are also passed through decoding and are play; Play end equipment and be in holding state; Such as the information that does not have the user to need in the server platform database, after then this service finishes, the terminal device on-hook, and rebulid data TCP/IP with server and be connected, equipment is in holding state.
Fig. 8 is the process flow diagram of expressway navigation Service: equipment equipment under holding state detects whether the PTT order is arranged; As press the PTT key, terminal stops the GPRS data communication, and automatic poking beats affair call center phone into submission; Servicing call center the seat attendant receive calls, and informs the destination; Service platform is according to current location and the destination planning travel route of terminal; The on-hook of prompt terminal equipment, and rebulid data TCP/IP with server and be connected; Judge whether the terminal current location approaches minute fork in the road, if, then send the voice suggestion data of selection schemer, decoding was play after terminal received, then be in holding state, if not, then equipment is in holding state, continuation sends current up-to-date position and travel speed, directional information to server platform, until vehicle approach divides the fork in the road.
Fig. 9 is the process flow diagram of weather warning service: the device-to-server platform sends heartbeat packet and GPS information; Server platform is retrieved the Weather information relevant with this Vehicle Driving Cycle the place ahead from database; Send this information to terminal device; This information of device storage is also play voice; And continue to server platform transmission heartbeat packet and GPS information and detect to have or not order hard of hearing; Press key hard of hearing such as the user, the nearest traffic information of then replaying is replayed and is finished rear equipment continuation to server platform transmission heartbeat packet and GPS information and detect to have or not order hard of hearing.
Figure 10 is the process flow diagram of fast monitor service of transfiniting; The device-to-server platform sends heartbeat packet and GPS information; Service centre judges whether vehicle is special car, if special car, then the travelling speed-limit standard according to the type vehicle judges whether hypervelocity, if hypervelocity, then send this information to terminal device, this information of device storage and speech play, equipment continues to send heartbeat packet and GPS information to the server platform, if do not exceed the speed limit, then judge under the weather conditions at that time whether exceed the speed limit, if hypervelocity, then send this information to terminal device, this information of device storage and speech play, equipment continue to send heartbeat packet and GPS information to the server platform, if do not exceed the speed limit, whether retrieval Vehicle Driving Cycle preface has electronic police or speed(-)limit sign, if have, then send this information to terminal device, this information of device storage and speech play, equipment continues to send heartbeat packet and GPS information to the server platform, if no, equipment is in holding state, continues to send heartbeat packet and GPS information to the server platform; If not special car, then judge vehicle whether exceed under normal circumstances standard of the limited speed or at that time weather conditions under whether exceed the speed limit, if hypervelocity, then send this information to terminal device, this information of device storage and speech play, equipment continues to send heartbeat packet and GPS information to the server platform, if do not exceed the speed limit, whether retrieval Vehicle Driving Cycle preface has electronic police or speed(-)limit sign, if having, then send this information to terminal device, this information of device storage and speech play, equipment continue to send heartbeat packet and GPS information to the server platform, if do not have, equipment is in holding state, continues to send heartbeat packet and GPS information to the server platform.
Figure 11 is the process flow diagram of driving vehicle spacing reminding service: the device-to-server platform sends heartbeat packet and GPS information; Service centre will divide into groups at the vehicle that different roads travel according to the geographical location information of each expressway; Then service centre is divided into two groups according to the travel direction information of vehicle real-time update with the vehicle that travels on the same expressway; Minimum spacing in judging same group between any vehicle, whether less than setting value (such as 200 meters), if less than setting value, then spacing is sent spacing simultaneously less than the two cars of setting value and remind voice messaging, terminal receives and this information of speech play, and equipment continues to send heartbeat packet and GPS information to the server platform; If greater than setting value, then equipment is in holding state, continues to send heartbeat packet and GPS information to the server platform.
Figure 12 is the flow process that service is nullified.The business process map of major function of the present invention: press the ON/OFF switch, equipment sends the service log-out instruction to service centre and disconnects, and server platform is stored the related data of this service, and deletes this equipment from the real time service list of devices, the equipment shutdown.
What more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged, all distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (10)
1. all-weather driving service system, comprise centralized control center's server platform, front end portable vehicle mounted terminal, described front end portable vehicle mounted terminal comprises the CPU that primary processor and communication module form, also comprise the SDRAM that links to each other with CPU by parallel data bus line respectively, NAND FLASH, NOR FLASH, described front end portable vehicle mounted terminal is built-in with service centre's number and the server platform network address, centralized control center, radio frequency interface in CPU on the communication module is connected to antenna, CPU is connected with the GPS chip by serial ports, CPU also is connected with crystal oscillator and clock circuit, it is characterized in that the workflow of described system is as follows:
(1), service registry and affirmation: startup, initialization, self check, be connected, affirmation connects;
(2), real-time information service: the device-to-server platform sends heartbeat packet and GPS information, and server platform is retrieved the traffic information corresponding with this GPS information, Weather information, speed-limiting messages from database, send this information to terminal device;
Voice call service: under the holding state, press the PTT key and start voice call service, terminal stops data communication, dials the servicing call center phone, and behind the end of conversation, the terminal device on-hook is set up data communication with server, enters holding state;
Driving vehicle spacing reminding service: the device-to-server platform sends heartbeat packet and GPS information, server platform will divide into groups at the vehicle that different roads travel according to geographical location information, then the travel direction information according to the vehicle real-time update is divided into two groups with the vehicle that travels on the same path, minimum spacing in judging same group between any vehicle, whether less than setting value, if less than setting value, then spacing is sent information simultaneously less than the two cars of setting value, equipment continues to send heartbeat packet and GPS information to the server platform, if greater than setting value, then equipment is in holding state, continues to send heartbeat packet and GPS information to the server platform;
(3), service is nullified: equipment sends the service log-out instruction to server platform and disconnects, and server platform is stored the data of this service, and deletes this equipment from the real time service list of devices, the equipment shutdown.
2. all-weather driving service system according to claim 1, it is characterized in that, described front end portable vehicle mounted terminal also comprises power supply, power supply is connected with respectively the management of charging and discharging circuit, power supply and watchdog circuit, be CPU power supply by power supply and watchdog circuit, CPU also is provided with the MicroUSB interface, and be connected with the management of charging and discharging circuit, be connected with button and LED light on the I/O mouth of CPU, described GPS built-in chip type has antenna or external antenna interface, and CPU connects microphone and audio A/D by universal serial bus respectively, audio frequency amplifies and microphone circuit.
3. all-weather driving service system according to claim 2, it is characterized in that, communication module among the front end portable vehicle mounted terminal CPU is GSM/GPRS/CDMA 1X/TD-SCDMA/WCDMA/CDMA2000 console module, is provided with the SIM card slot on the communications platform module.
4. all-weather driving service system according to claim 2 is characterized in that, described button comprises key hard of hearing, PTT key, ON/OFF switch, reset key, acknowledgement key.
5. all-weather driving service system according to claim 4 is characterized in that, described front end portable vehicle mounted terminal is built-in with information autostore program, PTT program.
6. all-weather driving service system according to claim 5 is characterized in that, described information autostore program can arrange the information that autostore receives in the certain hour interval of front end portable vehicle mounted terminal in 1 to 5 minute.
7. all-weather driving service system according to claim 2 is characterized in that, described front end portable vehicle mounted terminal also comprises external power supply, and described external power supply is power interface or external power supply box.
8. all-weather driving service system according to claim 5 is characterized in that, described NAND FLASH capacity is not less than 1GB.
9. according to claim 1 and 2 or 3 or 4 or 5 or 6 or 7 or 8 described all-weather driving service systems, it is characterized in that, the platform software database of centralized control center's server platform adopts SQL Server, use the networking of C/B/S framework, the platform software database adopts modular design, the access of centralized control center's server platform supports that speech, TC P/IP data connect, Word message, and described platform software supports disk array, two network interface card, gigabit networking communication, NAT private network to pass through.
10. all-weather driving service system according to claim 9, it is characterized in that, described centralized control center server platform software, support remote online firm ware software upgrading and the maintenance of front-end equipment, support remote online parameter modification and the setting of front-end equipment, application layer can be realized microphone voice recording and coding automatically, with task scheduling and data distribution module, support the multiple servers cascade network in the same service centre, support multi-level multi-format Vector Electronic Map, the function of support unit Tachographs, support the historical track information in the long-range extraction front end portable vehicle mounted terminal, provide and other maps, the data-interface of navigation software producer, described centralized control center server platform software support data retrieval and statistical report form, support many grades, the user management of many authorities, support the optimisation technique design of thread pool and the memory pool of completing port, supporting database connection pool optimisation technique, CP content-data interface is provided, and single or grouping management is supported in the management of access device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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