CN1075567A - Monitoring and controlling system for running of motor vehicle - Google Patents
Monitoring and controlling system for running of motor vehicle Download PDFInfo
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- CN1075567A CN1075567A CN 92100535 CN92100535A CN1075567A CN 1075567 A CN1075567 A CN 1075567A CN 92100535 CN92100535 CN 92100535 CN 92100535 A CN92100535 A CN 92100535A CN 1075567 A CN1075567 A CN 1075567A
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Abstract
A kind of monitoring and controlling system for running of motor vehicle is made up of sender unit, vehicle-mounted reception note cryopreservation device, central processing unit.When vehicle-mounted reception note cryopreservation device is enabled, provide vehicle condition proof of identification data, solidified by car affair data organization machine; Be provided with the inspection processor,, retrieve, add up, analyze the data of vehicle-mounted reception note cryopreservation device storage; Remember the caution signal that cryopreservation device sends by portable testing fixture reception central processing unit and vehicle-mounted reception, and realize reporting to the police.Possess skills advanced person, dependable performance, easy and simple to handle, be easy to advantages such as popularization.Be applicable to the supervision and control of motor vehicles travel conditions.
Description
The invention belongs to the traffic management technology field, relate to the supervision and control of the safety traffic and the management of motor vehicles.
The traffic administration coverage is wide, and workload is huge, and recurrent traffic hazard produces great influence to society and economic construction again.In traffic administration work, remain in many problems, as the control that exeeds the regulation speed and travel to one of major reason of causing car accident; In traffic hazard processing, arbitration work, required record, retrieval to foundations such as the speed of a motor vehicle, times; Statistics, analytical work that road, facility influence traffic safety; The status file administration that vehicle moves; To the work etc. that searches of the motor vehicles that travel unusually, just facility, the method for using at present still belongs to and is difficult to solution, and some work almost can't be carried out.
The objective of the invention is, adopt microelectronics and microcomputer technology, design can provide and be difficult to the car affair data archival altering, forge, automatically the logging machine motor vehicle is in transport condition, exeed the regulation speed and unusual brake hard and stop before data such as time, place, the speed of a motor vehicle, the place of passing through, number of times, for statistics, retrieval, analysis, the work of treatment of traffic administration provides foundation; In wired and wireless communication networks, command signal is made correlated response, form supervisory system, to improve traffic administration, improve the automatization level of facility, realize the modernized supervision and control management that motor vehicles are travelled.
Monitoring and controlling system for running of motor vehicle of the present invention is made up of sender unit, vehicle-mounted reception note cryopreservation device, central processing unit, it is characterized in that,
When vehicle-mounted reception note cryopreservation device is enabled, provide vehicle condition proof of identification data, solidified by car affair data organization machine; Be provided with the inspection processor,, retrieve, add up, analyze the data of vehicle-mounted reception note cryopreservation device storage; Remember the caution signal that cryopreservation device sends by portable testing fixture reception central processing unit and vehicle-mounted reception, and realize reporting to the police;
Sender unit is arranged on by the road section of intending control, the time interval and frequency that can be in accordance with regulations, and emission speed limit data and location code electromagnetic wave, and get in touch with through wire net and central processing unit;
Vehicle-mounted reception note cryopreservation device is arranged on vehicle driving chamber front window, is convenient to the position of the outer forward observation of car to this device working station indicator, when enabling, can remember the car affair data code that is provided by car affair data organization machine is provided; When motor vehicles travel, can carry out according to the signal of sender unit differentiate, data such as record exeed the regulation speed time of travelling, place, speed per hour; When vehicle generation brake hard, can write down data such as the speed of a motor vehicle in the time of origin, stipulated time, place automatically; When receiving the caution signal that central processing unit sends, can constitute contact with portable testing fixture, sender unit, to send alerting signal;
Check processor, be arranged on the vehicle supervision department appointed place, can carry out data communication with vehicle-mounted reception note cryopreservation device; Can store the automobile-carried reception note total data that cryopreservation device write down more than 5000; Can be according to operating personnel's instruction, finish travel to exeeding the regulation speed, mobile unusually, the retrieval of motor vehicles of travelling unusually, and finish the print job of corresponding form, document; Can finish with of retrieval, statistics, analysis, the work of treatment of arbitrary data item as key word;
Car affair data organization machine, be arranged on traffic and vehicle management department appointed place, can carry specific car affair data to vehicle-mounted reception note cryopreservation device, solidifying this vehicle needs the identity data of long preservation, comprises license plate number, car model, Motor Number, vehicle frame number, manufacturer's numbering, alarm cipher etc.; Can provide it to store statistics, retrieval, the work of treatment of data;
Portable testing fixture, be arranged on crow or carry by mobile personnel on duty, can check place coding, speed limit coding that sender unit sends, receive the signal that central processing unit and vehicle-mounted reception note cryopreservation device sends, and report to the police to the user of service with sound or wigwag;
Central processing unit is arranged on traffic or other administrative authority appointed places, constitutes contact with wireless mode and vehicle-mounted reception note cryopreservation device, portable testing fixture; Constitute contact with wired mode and sender unit, can judge the position of intending seeking vehicle rapidly.
This monitoring and controlling system for running of motor vehicle has the following advantages:
The motor vehicles that travel to exeeding the regulation speed are carried out automatic record, in the monitoring and controlling system for running of motor vehicle scope, at characteristics such as the no route of motor vehicles operation, speed, travelling of whole motor vehicles implemented monitoring automatically, make the human pilot of driving against traffic regulations to avoid by sheer good luck checking and handling, will play the powerful effect of controlling with the situation of driving over the speed limit the big portion of traffic hazard; For the arbitration process of traffic hazard provides science accurate data such as relevant time, the speed of a motor vehicle, travel direction, spot, as the actual speed of per second in preceding 10 seconds of stopping can be provided, the speed of per second in 12 seconds before and after when unusual brake hard takes place in the vehicle ', place, the travel direction of passing through after the time that accident takes place, the record before the accident happened therefrom analyze behavior and measure that human pilot is taked after before the accident happened; For traffic administration provides foundation with relevant condition of road surface scientific analysis, native system utilizes the huge data-storing capacity of robot calculator, the characteristics of high-intelligentization, make the vast and numerous statistics of traffic administration, retrieval, analytical work, become letter and the easily operation of row, as can be in the extremely short time, retrieve in the native system range of control related datas such as kind, time of origin, place, number of times that unusual brake hard vehicle all takes place for highway section arbitrarily, provide foundation for improving its means of transportation and management; Be difficult to the car affair data archival altering, forge for every motor vehicles provide, strengthen, can the travel route of the motor vehicles that travel unusually (fleeing from as accident), the place of passing through be made in time, judge accurately the work of motor vehicles mobile management; The means of science are provided for the traffic administration modernization, can greatly simplify exeeds the regulation speed travels, traffic hazard is handled, the analysis and research work of monitoring, traffic and the management efficiency of the motor vehicles that travel unusually, reduce the influence of organizational affiliation to management work, with the working routine of simplification and good performance, solve the situation of police strength deficiency or waste of manpower.
Each device of native system all adopts modern advanced and production technology, dependable performance, and long service life, the ratio of performance to price is reasonable, installs and uses easy and simple to handlely, is easy to large-scale promotion.
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the sender unit schematic diagram.
Fig. 2 is vehicle-mounted reception note cryopreservation device schematic diagram.
Fig. 3 is a car affair data organization machine schematic diagram.
Fig. 4 is portable testing fixture schematic diagram.
Fig. 5 is the central processing unit schematic diagram.
Fig. 6 is that the monitoring and controlling system for running of motor vehicle classification is provided with schematic diagram
As seen from the figure, motor vehicles travel conditions supervisory control system of the present invention is made up of sender unit, vehicle-mounted reception note cryopreservation device, central processing unit, it is characterized in that,
When vehicle-mounted reception note cryopreservation device is enabled, provide vehicle condition proof of identification data, solidified by car affair data organization machine; Be provided with the inspection processor,, retrieve, add up, analyze the data of vehicle-mounted reception note cryopreservation device storage; Remember the caution signal that cryopreservation device sends by portable testing fixture reception central processing unit and vehicle-mounted reception, and realize reporting to the police;
Sender unit, be arranged on by the road section of intending control, can be with this device by the location code of system's establishment and speed limit numerical value with form of electromagnetic wave, time interval emission in accordance with regulations, control the highway section that it covers, the vehicle-mounted reception note of the motor vehicle cryopreservation device in this highway section of passing through is received; When this device receives wireless alarm signal, will send wired location code and other specification signals to the wire net of central processing unit.
Its principle of work as shown in Figure 1.
Insert location code and speed limit numerical value enters multi-way switch by code switch, under the cadence signal control that oscillator sends, address scrambler is the OPADD signal circularly, thereby with location code and speed limit numerical value one by one in an orderly manner the input coding device carry out also, go here and there conversion, the serial number value signal of output becomes the characteristic frequency electromagnetic wave to launch from antenna by modulators modulate.
Here the location code of She Dinging is represented with 6 tens digits, by the 1-6 bit representation of code switch.1-2 bit representation provinces, autonomous regions and municipalities code name; Road management divisional symble in the 3-4 bit representation provinces, autonomous regions and municipalities; The place code name in each highway section, sender unit place in the 5-6 bit representation subregion.For example: Beijing's code name is 11, and highway section, southern side, Tian An-men, Dongcheng District divisional symble is 49, establishes signal transmitter before Tian An-men and is numbered 56, and this machine location code is 114956.As each provinces, autonomous regions and municipalities mean allocation numbering, but each minute 29,999 of call numbers.
Speed limit numerical value represents that with 2 tens digits promptly minimum is 0 kilometer/hour, is up to 99 kilometers/hour.7-11 bit representation by code switch.The 7-8 position is a cyclecar speed limit numerical value, and 9 is the specific code name of truck conspicuity marking speed limit numerical value, and the 10-11 position is a truck conspicuity marking speed limit numerical value, and this numerical digit design needs two kinds of speed limit numerical value at same highway section and decides.
Code switch is a tumbler switch, manually is allocated to place and the speed limit code numerical value that conforms to the infield by the professional.Energized promptly begins to launch above-mentioned numerical signal continuously after starting, and ends when manually changing next time.
The serial code that modulator adopts frequency modulation system that scrambler is exported is modulated into the electromagnetic wave signal of 80MHz-120MHz, and frequency is used by the appointment of Wireless Management Committee, and the whole nation as the same frequency of use can realize national unified monitoring.
When antenna receives the alarm signal that vehicle-mounted reception note cryopreservation device sends (transmission frequency that is different from sender unit), the initiating signal of this sender unit output with receive by wire net to patrol and examine the location code identification signal identical, promptly control full-duplex serial interface location code or other particular code of this device be transported to central control system by wire net.At this moment, central control system can be learnt specified place and the time that the alarm motor vehicles are passed through.The processes and displays of central processing unit can adopt the large display screen curtain.
The emissive power of this device should be controlled in 100 meters of radiuses are, operating voltage is direct current 3-5V, uses power supply to can be civil power alternating current 220V, 50Hz.
This device installation interval distance should be more than 400 meters.Should be installed on and be difficult for artificial destruction and and the position of the unmatchful Electromagnetic Interference object between the highway section of controlling.
Vehicle-mounted reception note cryopreservation device is arranged on front portion, vehicle driving chamber, in the vehicle ', will be compared by the speed limit data of this car velometer data that provide and the sender unit of passing through.As being in the state of driving over the speed limit, i.e. the location code sent of line item there and then sender unit, speed limit code, time, actual speed and by the number of times of note hypervelocity be not as being in then record not of overspeed condition.
Display screen shows that at any time actual vehicle speed, the hypervelocity in preceding at that time 10 seconds is recorded number of times.Show the speed numerical value that stops preceding 10 seconds during parking.
When meeting unusual brake hard, this device can be remembered all parameters when depositing brake hard, and comprises preceding 2 seconds and back 10 seconds per second speed numerical value and time of origin take place, two of in advance passing through and the location code and the time of a sender unit afterwards.
Transmit recorded data, correction data that the receiving check device is sent and special code to corresponding testing fixture.
When receiving special caution signal (codes such as license number, vehicle, color are totally 16 10 system numbers), start the interior wireless caution signal generator of this device automatically, send particular code, get in touch with sender unit and corresponding testing fixture.
Special wigwag shows outside car whether the work of this device is normal.
It is the intelligent apparatus that the center constitutes that vehicle-mounted reception note cryopreservation device adopts with 8051 serial one chip microcomputers (hereinafter to be referred as single-chip microcomputer), and its principle of work as shown in Figure 2.
Behind the place that this device received signal emitter sends, the restricting signal, be reduced into serial digital signal through detuner, under the address signal control of single-chip microcomputer output, demoder is discerned synchronously to the signal of detuner output.Thereby the data that receive are put into one by one the corresponding units of memory.This part from principle be with emitter scrambler, modulator one to one.
The principle that the speed of a motor vehicle detects is: tachogenerator (Hall element) is converted to the electric impulse signal of its frequency with speed of a motor vehicle linear change with the rotating speed of flexible axle, by sending single-chip microcomputer to carry out frequency measurement behind shaping, the frequency division and being converted to the speed of a motor vehicle, judgement, storage and demonstration.
The numeral display format:
The speed of a motor vehicle 123456789 10 before stopping
The corresponding time (second)
Real-time clock adopts the M5832 chip to produce automatically year, month, day, hour, min, second.By single-chip microcomputer random read-write when needed.Its electric power system adopts standby power supply system (3.6V chargeable battery), so that can work on after vehicle power supply cuts off.This power supply can reach more than 4 years normal serviceable life.
Memory adopts 2864E
2ROM. memory capacity is the 8K byte.The characteristics that information is not lost when having outage, storage mode is first in first out, based on the actual application requirements, this memory can write down 20 of overspeed violation record clauses and subclauses, and can deposit 160 of unusual brake parameters clauses and subclauses simultaneously.
This device should be installed on the position that automobile driving cabin is convenient to the outer forward observation device working station indicator of car, so that driver and traffic-police in time observe.The rotatable variable color of indicator-lamp cover, the bright and rotation variable color of lamp is working properly, does not rotate variable color for no tachometer signal.Lamp does not work and is plant failure or non-transformer.
Multi-functional parallel interface adopts and replys the formula interface and increase certain secrecy provision in order to carry out the data communication with corresponding testing fixture, to guarantee and its data communication of carrying out can only be between supporting device.
Analysis, processing that the various data of storing in the device can be traffic hazard provide reliable basis, for example follow unusual brake hard, to store 2 seconds and back 10 seconds actual travel speed before the accident happened in the device, the location code of in advance pass through two and the sender unit of afterwards passing through, the time of restarting.Determining the travel direction and the route of vehicle, the speed of a motor vehicle before accident takes place, when, what is apart from taking measures and the speed of a motor vehicle of moment, the behavior after the accident etc. take place accident.
Receiving that (plan is sought the license number of vehicle to the special caution signal that is sent by central processing unit, vehicle, codes such as color) time, determining program in this device self-starting single-chip microcomputer, the data of the special code received and the storage of this car-mounted device are compared, represent then that if conform to this car is for intending seeking vehicle, just switch electronic switch immediately, is electromagnetic wave with warning code through modulators modulate, launch by antenna, communication distance is in 100 meters, makes the sender unit or the corresponding testing fixture that are provided with on the highway section send highway section location code or alarm indication to central processing unit.
Check that processor is portable 80286 type microcomputers, when the vehicle drive personnel that exeed the regulation speed being handled, finish work such as data retrieval, authority printing according to the data of vehicle-mounted reception note cryopreservation device storage;
According to relevant data such as license plate number, color, the location code of passing through, time code etc. the accident vehicle of runing away is retrieved;
Finish with retrieval, statistics, the analytical work of arbitrary data as key word.These facility have the memory capacity of 40 megabyte, can store the total data of automobile-carried reception note cryopreservation device more than 5000.For example: according to instruction, with highway section shown in adjacent two location code, whole parameters of the unusual brake hard that retrieval all takes place at this highway section driving vehicle can be analysis road conditions or traffic administration situation, provide scientific basis to the influence of traffic safety.
Car affair data organization machine, be arranged on traffic and vehicle management department appointed place, when vehicle-mounted reception note cryopreservation device is enabled or this car when moving for the first time, by of the instruction of car affair data organization machine according to vehicle particular case and car affair administrative authority, this vehicle is needed the identity data of long preservation, as license plate number, model, Motor Number (getting two of mantissa), vehicle frame number (getting two of mantissa), producer's numbering or other particular datas, as reporting to the police with password etc., depositing vehicle-mounted receiver apparatus in solidifies, once be one, design keeps and comprises that the last time is with the first five bar.
Principle of work as shown in Figure 3.
This device selects for use 286 portable microcomputers to finish the special code communication of remembering cryopreservation device with vehicle-mounted reception.Soon read in the special code that be switched on vehicle-mounted year receives the note cryopreservation device and send display screen to show, will set or amended code is delivered to by tipping and put curing; Show and proofread and correct and be hinged with the clock of putting; And can use printer to finish relevant print job; Work out the affair data archival software that cut-offs.
Portable testing fixture is used by crow or mobile personnel on duty.Can check location code, speed limit code that sender unit sends; Receive caution signal and demonstration that central processing unit sends; Receive the caution signal that vehicle-mounted reception note cryopreservation device sends, and by light or audible alarm.
Its principle of work as shown in Figure 4.
1. demoder is identical with vehicle-mounted reception note cryopreservation device part for demodulator among the figure, when needs are checked the sender unit operating condition, the user of service takes this and installs in 50 meters of sender units, the cadence signal control address scrambler that oscillator in this device sends is the OPADD signal circularly, the data that demoder is sent one by one are latched into latch, drive LCD, the location code that the shows signal emitter sends and speed limit code data.The data that solve when demoder belong to special caution signal, and (this signal is sent by central processing unit, and for example: in other codings, first number does not all use 0.0 promptly becomes the caution signal lead-in) time, by the control signal of identification circuit output, control data multiplexer and address add the special caution signal that 1 counter will receive and deposit memory in, and drive warning tone, light demonstration.Memory can deposit 10 special caution signals in, adds the circulate high address of given memory of 1 counter by the address.If the user of service only need press read button need read the special caution signal of memory the time, and display screen can show.Whenever by once, show a content successively.When receiving the wireless caution signal that vehicle-mounted reception note cryopreservation device sends, 2. demodulate indicator signal by detuner, drive warning tone and send violating the regulations and wigwag, notify the user of service to alarm near vehicle passed through.
Central processing unit, be arranged on traffic or administrative authority appointed place, by the wireline communication network that connects each sender unit, patrol and examine the emission of location code signal, disposal system, catenet indicator panel, special caution signal wireless launcher etc. are partly formed.
Its principle of work as shown in Figure 5.
When central processing unit was in running order, main frame was by operating personnel instruction, retrieved the characteristics code of intending looking for an opportunity motor vehicle (as license plate number etc.), delivered to the caution signal transmitter and was emitted to the scope that is covered through antenna.When the sender unit as the central processing unit terminal receives the alarm signal that vehicle-mounted reception note cryopreservation device sends, promptly start with central processing unit and patrol and examine the signal answering device through the wire net transmission, send the particular code of this terminal, and handle patrolling and examining signal by main frame, distinguish and detect the terminal code, send idsplay order through interface cabinet to large display screen, operating personnel can find out from large display screen and intend looking for an opportunity motor-car position at that time and the route of passing through.
Each sender unit can be selected the series and parallel mode arbitrarily with being connected of wire net.When communication distance is far away (as more than 10 kilometers), can in interface cabinet, set up the remote driver of signal, or in communication network, set up signal amplifier as required to solve signal attenuation.
The classification setting as required of this system, as shown in Figure 6.
Claims (1)
1, a kind of monitoring and controlling system for running of motor vehicle is made up of sender unit, vehicle-mounted reception note cryopreservation device, central processing unit, it is characterized in that,
When vehicle-mounted reception note cryopreservation device is enabled, provide vehicle condition proof of identification data, solidified by car affair data organization machine; Be provided with the inspection processor,, retrieve, add up, analyze the data of vehicle-mounted reception note cryopreservation device storage; Remember the caution signal that cryopreservation device sends by portable testing fixture reception central processing unit and vehicle-mounted reception, and realize reporting to the police;
Sender unit is arranged on by the road section of intending control, the time interval and frequency that can be in accordance with regulations, and emission speed limit data, location code electromagnetic wave, and get in touch with through wire net and central processing unit;
Vehicle-mounted reception note cryopreservation device is arranged on vehicle driving chamber front window, is convenient to the position of the outer forward observation of car to this device working station indicator, when enabling, can remember the car affair data code that is provided by car affair data organization machine is provided; When motor vehicles travel, can carry out according to the signal of sender unit differentiate, data such as record exeed the regulation speed time of travelling, place, speed per hour; When vehicle generation brake hard, can write down data such as the speed of a motor vehicle in the time of origin, stipulated time, place automatically; When receiving the caution signal that central processing unit sends, can constitute contact with portable testing fixture, sender unit, to send alerting signal;
Check processor, be arranged on the vehicle supervision department appointed place, can carry out data communication with vehicle-mounted reception note cryopreservation device; Can store the automobile-carried reception note total data that cryopreservation device write down more than 5000; Can be according to operating personnel's instruction, finish travel to exeeding the regulation speed, peccancy and trouble-causing, mobile unusually, the retrieval of motor vehicles of travelling unusually, and finish the print job of corresponding form, document; Can finish with of retrieval, statistics, analysis, the work of treatment of arbitrary data item as key word;
Car affair data organization machine, be arranged on traffic and vehicle management department appointed place, can carry specific car affair data to vehicle-mounted reception note cryopreservation device, solidifying this vehicle needs the identity data of long preservation, comprises license plate number, car model, Motor Number, vehicle frame number, manufacturer's numbering, alarm cipher; Can provide it to store assault, retrieval, the work of treatment of data;
Portable testing fixture, be arranged on crow or mobile personnel on duty carries, can check place coding, speed limit coding that sender unit sends, receive the signal that central processing unit and vehicle-mounted reception note cryopreservation device sends, and report to the police to the user of service with sound or wigwag;
Central processing unit is arranged on traffic or other administrative authority appointed places, constitutes contact with wireless mode and vehicle-mounted reception note cryopreservation device, portable testing fixture; Constitute contact with wired mode and sender unit, can judge the position of intending seeking vehicle rapidly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100535 CN1026734C (en) | 1992-02-15 | 1992-02-15 | Monitoring and controlling system for running of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100535 CN1026734C (en) | 1992-02-15 | 1992-02-15 | Monitoring and controlling system for running of motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1075567A true CN1075567A (en) | 1993-08-25 |
| CN1026734C CN1026734C (en) | 1994-11-23 |
Family
ID=4938654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100535 Expired - Fee Related CN1026734C (en) | 1992-02-15 | 1992-02-15 | Monitoring and controlling system for running of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026734C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391127C (en) * | 2002-07-11 | 2008-05-28 | 上海飞田通信技术有限公司 | Vehicle mounted communication apparatus and traffic information processing method using the same |
| CN102289692A (en) * | 2011-07-27 | 2011-12-21 | 刘长坤 | Method and device for managing remote radio frequency magnetic electric bicycles |
| CN101850742B (en) * | 2009-04-01 | 2012-09-26 | 北汽福田汽车股份有限公司 | Pedestrian cautioning safety system and method of pure electric mode hybrid electric vehicle and vehicle thereof |
| CN109003456A (en) * | 2018-06-22 | 2018-12-14 | 安徽科力信息产业有限责任公司 | Record motor vehicle gets over the method and system of solid line illegal activities |
| CN110874941A (en) * | 2018-08-29 | 2020-03-10 | 李德一 | Electronic speed-limiting board convenient for vehicle to run at optimal running speed |
| CN110874949A (en) * | 2018-08-29 | 2020-03-10 | 李德一 | Device for facilitating vehicle to run at optimal running speed |
| CN113098981A (en) * | 2021-05-19 | 2021-07-09 | 星软集团有限公司 | Anti-damage method and system for intelligent speed limiting device of vehicle |
-
1992
- 1992-02-15 CN CN 92100535 patent/CN1026734C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391127C (en) * | 2002-07-11 | 2008-05-28 | 上海飞田通信技术有限公司 | Vehicle mounted communication apparatus and traffic information processing method using the same |
| CN101850742B (en) * | 2009-04-01 | 2012-09-26 | 北汽福田汽车股份有限公司 | Pedestrian cautioning safety system and method of pure electric mode hybrid electric vehicle and vehicle thereof |
| CN102289692A (en) * | 2011-07-27 | 2011-12-21 | 刘长坤 | Method and device for managing remote radio frequency magnetic electric bicycles |
| CN109003456A (en) * | 2018-06-22 | 2018-12-14 | 安徽科力信息产业有限责任公司 | Record motor vehicle gets over the method and system of solid line illegal activities |
| CN110874941A (en) * | 2018-08-29 | 2020-03-10 | 李德一 | Electronic speed-limiting board convenient for vehicle to run at optimal running speed |
| CN110874949A (en) * | 2018-08-29 | 2020-03-10 | 李德一 | Device for facilitating vehicle to run at optimal running speed |
| CN113098981A (en) * | 2021-05-19 | 2021-07-09 | 星软集团有限公司 | Anti-damage method and system for intelligent speed limiting device of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026734C (en) | 1994-11-23 |
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