CN1737872A - Novel traffic monitoring system - Google Patents
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- CN1737872A CN1737872A CN 200510060270 CN200510060270A CN1737872A CN 1737872 A CN1737872 A CN 1737872A CN 200510060270 CN200510060270 CN 200510060270 CN 200510060270 A CN200510060270 A CN 200510060270A CN 1737872 A CN1737872 A CN 1737872A
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Abstract
This invention relates to new traffic monitor system, which comprises automobile terminal, road monitor and traffic monitor center, wherein, the load terminal comprises auto identification codes MCU central process unit A connected to the radio receiving unit A, language drive unit and power module. The road monitor comprises MCU central process unit with address information with radio receiving unit and interface circuit and power module.
Description
Technical field
The present invention relates to a kind of supervisory system, relate in particular to a kind of can obtain a large amount of road traffic real time datas, bootable vehicle ', can be to the novel traffic monitoring system of vehicle remote control.
Background technology
Along with China's rapid development of economy, vehicle guaranteeding organic quantity increases sharply, and the pressure of traffic is also increasing in the city, a lot of at home cities, and traffic congestion has been very usual thing.
How to alleviate present traffic pressure, raise the management level, more and more become the focus that people pay close attention to, though relevant department has done a large amount of trial work, but the result is not very desirable, the reason of searching to the bottom lacks the Real-time Traffic Information data on road surface exactly, can't accurately obtain as data such as car amount identity, position, road speed, road traffics.Do not have data, just can't set up mathematical analysis model accurately, just can't provide scientific and effective ladder of management yet, let alone the realization intelligent transportation.Yet,, be difficult to obtain so a large amount of road traffic real time data with existing technological means.
Chinese patent literature 87205945 discloses a kind of " highway communication flow monitoring device ", with the number of axle, wheelbase and the total length of vehicle parameter as the identification vehicle, with the pulsed modulation infrared switch as the vehicle perceptron, sending into single board computer after the signal interface circuit pre-service that the vehicle shading produces again handles, make car type by 8 types and differentiate and traffic statistics, and timed print goes out the result.This technology has more vehicle just to have bigger traffic statistics error when the infrared switch when the same time, and car type differentiates and can only have limitation by 8 types of differentiations, in addition can only be as traffic statistics, and function is single relatively.
Summary of the invention
The present invention has solved the technical matters that prior art can't obtain a large amount of Real-time Traffic Information data on road surface; A kind of novel traffic monitoring system that can obtain a large amount of Real-time Traffic Information data in road surface is provided.
The present invention has solved again that prior art vehicle flow statistical error is big, the technical matters of function singleness; Provide a kind of vehicle flow to add up accurately, can realize testing vehicle register identification, vehicle location, can realize wheelpath record, car tracing again, can also realize the inducing and controlling of particular vehicle, integrate many-sided function, novel traffic monitoring system with low cost.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: the present invention includes car-mounted terminal, road monitoring device and traffic surveillance and control center, car-mounted terminal links to each other with wireless mode with the road monitoring device, and the road monitoring device links to each other with mobile public network with traffic surveillance and control center.
As preferably, described car-mounted terminal is installed on the vehicle, comprise MCU CPU (central processing unit) A, the Transmit Receive Unit A, voice driven unit, the serial data interface unit that link to each other with described MCU CPU (central processing unit) A and the power module A that working power is provided for whole car-mounted terminal, described voice driven unit links to each other with the vehicle acoustics circuit, described power module A links to each other with the firing circuit of the vehicle that described car-mounted terminal is installed, and described MCU CPU (central processing unit) A internal memory contains the testing vehicle register coding.
As preferably, described road monitoring device comprises MCU CPU (central processing unit) B, the Transmit Receive Unit B, the interface circuit unit that link to each other with described MCU CPU (central processing unit) B and the power module B that is connected in the mobile public network signal transmitting and receiving unit on the interface circuit unit and working power is provided for whole road monitoring device, described power module B links to each other with the 220V civil power or links to each other with solar cell, or directly use dry cell power supply, described MCU CPU (central processing unit) B internal memory to contain geographical latitude and longitude information or specific address information coding; Described road monitoring device adopts to fixedly install or move and is provided with.
As preferably, described traffic surveillance and control center is a work LAN (Local Area Network), comprise switch, be connected with front end processor, data server, system server, operating terminal, router on the switch, described front end processor links to each other with the commmunication company data server by Leased line, and described router links to each other with wide area network.
As preferably, also be connected with the controlling output circuit unit on the described MCU CPU (central processing unit) A, the controlling output circuit unit is connected with vehicle fuel injection circuit.
As preferably, described MCU CPU (central processing unit) A is 89C52 single-chip microcomputer and peripheral circuit thereof, described Transmit Receive Unit A is the NRF2401 integrated circuit, and described voice driven unit is the ISD2590 integrated circuit, and described serial data interface unit is the MAX232 integrated circuit.
As preferably, described MCU CPU (central processing unit) B is 89C52 single-chip microcomputer and peripheral circuit thereof, Transmit Receive Unit B is the NRF2401 integrated circuit, and described mobile public network signal transmitting and receiving unit is the GPRS module, and described interface circuit unit is the MAX232 integrated circuit.
As preferably, it is other or be arranged on the monitoring vehicle that described road monitoring device is disposed on road.
As preferably, described controlling output circuit unit is made of with the relay or the solenoid valve that link to each other with the MC1431 integrated circuit the MC1431 integrated circuit.
The invention has the beneficial effects as follows: can realize real-time monitoring Traffic Information, obtain a large amount of pavement of road information of vehicles, and can realize functions such as vehicle location, wheelpath record, car tracing easily, can realize simultaneously also can providing public's traffic data platform service simultaneously to the inducing and controlling of particular vehicle.Systemic-function is powerful, and implementation cost is low, obvious social benefit.
Description of drawings
Fig. 1 is a connection block diagram of the present invention.
Fig. 2 is a kind of circuit connection diagram of car-mounted terminal among the present invention.
Fig. 3 is a kind of circuit connection diagram of road monitoring device among the present invention.
Fig. 4 is the workflow diagram of car-mounted terminal among the present invention.
Fig. 5 is the workflow diagram of road monitoring device among the present invention.
1. electronic license plates among the figure, 2. road monitoring device, 3. traffic surveillance and control center, 11.MCU CPU (central processing unit) A, 12. Transmit Receive Unit A, 13. voice driven unit, 14. power module A, 15. the controlling output circuit unit, 16. serial data interface unit, 21.MCU CPU (central processing unit) B, 22. Transmit Receive Unit B, 24. power module B, 26. interface circuit unit, 27. move public network signal transmitting and receiving unit, 31. Leased line, 32. the work LAN (Local Area Network), 321. front end processors, 322. switches, 323. data server, 324. system server, 325. operating terminals, 326. routers.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: the novel traffic monitoring system of present embodiment comprises car-mounted terminal 1, road monitoring device 2, traffic surveillance and control center 3 three parts.
Car-mounted terminal 1 is installed on the vehicle, with 89C52 single-chip microcomputer and peripheral circuit thereof as MCU CPU (central processing unit) A11 is core, the P2 mouth of 89C52 single-chip microcomputer with as the NRF2401 integrated circuit of Transmit Receive Unit A12 P.7, P.1, P.8, P.6 pin links to each other, the NRF2401 integrated circuit can be with extremely low power consumption and the speed that is exceedingly fast (being up to 1Mbps) transmission data, thereby significantly reduced current drain, " on-air collision " when having reduced system cost and having reduced transmission takes a risk.The P0 mouth of 89C52 single-chip microcomputer, be connected with ISD2590 integrated circuit on the P1 mouth as voice driven unit 13, the ISD2590 integrated circuit links to each other with the vehicle acoustics circuit, the P1.7 pin of 89C52 single-chip microcomputer links to each other with the pin.1 pin of MC1431 integrated circuit, the pin.16 pin of MC1431 integrated circuit links to each other with the coil of the solenoid valve of vehicle fuel injection circuit, MC1431 integrated circuit and solenoid valve constitute controlling output circuit unit 15, the serial data interface RXD of 89C52 single-chip microcomputer, TXD the (the 10th, 11 pin) link to each other with the MAX232 integrated circuit, constitute the serial data interface unit 16 of car-mounted terminal 1, it is connected with truck-mounted computer again, P.40 the pin of 89C52 single-chip microcomputer links to each other with power module A14 by the vehicle ignition circuit supply, and the 89C52 single-chip microcomputer internal memory of car-mounted terminal contains the testing vehicle register coding.
Road monitoring device 2 comprises 89C52 single-chip microcomputer and the peripheral circuit thereof as MCU CPU (central processing unit) B21, NRF2401 integrated circuit as Transmit Receive Unit B22, MAX232 integrated circuit as interface circuit unit 26, as the GPRS module of mobile public network signal transmitting and receiving unit 27 and the power module B24 that working power is provided for whole road monitoring device 2, the P2 mouth of 89C52 single-chip microcomputer and NRF2401 integrated circuit are P.7, P.1, P.8, P.6 pin links to each other, the serial data interface RXD of 89C52 single-chip microcomputer, TXD the (the 10th, 11 pin) link to each other with the MAX232 integrated circuit, the MAX232 integrated circuit links to each other with the GPRS module again, P.40 the pin of 89C52 single-chip microcomputer links to each other with power module B24, power module B is by the 220V mains-supplied, and the 89C52 single-chip microcomputer internal memory of road monitoring device contains on-site geographical latitude and longitude information or the specific address information coding that this road monitoring device is installed.
Traffic surveillance and control center 3 is work LAN (Local Area Network) 32, comprise switch 322, be connected with front end processor 321, data server 323, system server 324, operating terminal 325, router three 26 on the switch 322, front end processor 321 links to each other with the data server of commmunication company by Leased line 31, and router three 26 links to each other with wide area network.Leased line adopts the optical fiber special line in the present embodiment.
Car-mounted terminal 1 communicates with one another by the NRF2401 integrated circuit with road monitoring device 2, and road monitoring device 2 and traffic surveillance and control center 3 communicate with one another by GPRS.
The course of work of car-mounted terminal:
Store the supervisory routine of car-mounted terminal and the identity coding of vehicle on the 89C52 single-chip microcomputer of car-mounted terminal, in China, the identity coding of each vehicle all is unique, necessary all information, for example color of automobile, type, manufacturer, the date of production, registration area, owner information or the like when this coding has comprised the legal registration of automobile.Behind the automobile starting, the car-mounted terminal that links to each other with automobile igniting circuit also obtains power supply simultaneously, enter the stand-by operation state, Transmit Receive Unit in the car-mounted terminal is in accepting state, when the vehicle process is provided with the highway section of road monitoring device, with the signal of inquiring of receiving that the road monitoring device sends, this signal is actually and comprises address information coding and road information coded data bag.
Address information is meant the particular location in this place, and this information can be geographical longitude and latitude: as east longitude * * degree * * minute, north latitude * * degree * * minute.Also can be specific address, as: liberation crossing, belt East Road, road.
The road information coding is meant the essential information in current highway section, what being, whether forbidding that certain class car is current, whether the place ahead forbids certain direction turning etc. as speed limit, this information will remind the driver to drive with caution with speech form after being received processing by car-mounted terminal.
After receiving data packet signal, the MCU central processing unit in the car-mounted terminal is at first compared this packet and the packet received last time, if identical, MCU will not produce any action, and data wherein will be covered by the follow-up data that enter; If it is different, MCU handles this packet, isolate the coded message in the packet, wherein address code information send vehicle-mounted equipment such as truck-mounted computer to realize that local electronic chart shows by the serial data interface unit, and demonstrates this car position on electronic chart.
Road codes information by P0 mouth, the P1 mouth sending voice driver element of single-chip microcomputer, is given vehicle acoustics circuit output voice reminder information again after decoding.
Then, whether car-mounted terminal will be intercepted wireless channel idle: as the free time, will reply handshake and set up communication contact to the road monitoring device, and in case of busy, intercept once more after then waiting for 3MS, up to the wireless channel free time.When the above-mentioned stand-by period surpasses 3 minutes, car-mounted terminal will be abandoned communication and make great efforts to return holding state and restart flow process.
After the road monitoring device is received the handshake of car-mounted terminal simultaneously, carry out communication with the communication protocol of agreement immediately: car-mounted terminal is uploaded to the road monitoring device with the identity coding of oneself, and the road monitoring device then is handed down to car-mounted terminal to the command information of traffic surveillance and control center.After several milliseconds, communication is finished, and both sides break away from automatically.Car-mounted terminal will return holding state and restart flow process.The road monitoring device continues to provide inquires signal, seeks other and passes through vehicle.
The car-mounted terminal that had carried out communication is by the information comparison process, can realize shielding to the signal of inquiring of same road monitoring device, no longer reply, give other vehicles so that abdicate resource, find that until car-mounted terminal the packet of receiving changes, said process just restarts.
In the driving process of vehicle, car-mounted terminal does not so stop working in reciprocating mode.Vehicle is flame-out stop after, system also quits work.
The course of work of road monitoring device:
Store supervisory routine and local address information coding, road information coding and the current time information of road monitoring device among the 89C52 of road monitoring device.Road monitoring device and car-mounted terminal are used, and install along road with certain spacing distance, carry out message exchange with all through vehicle.Each road monitoring device all is endowed a unique geocoding, is kept in the MCU chip.
By programming to MCU in the road monitoring device, can be with address information coding and the packing of road information coding, with outwards transmission incessantly of certain cycle (as per 0.5 millisecond), this long hair signal can be as the signal of inquiring of road monitoring device.
The car-mounted terminal of process vehicle is received after this inquires signal and replied, and carries out communication with the agreement stipulations: car-mounted terminal transmits the self ID identity coding, and the road monitoring device transmits corresponding imperative instruction coding according to the identity of car-mounted terminal.Both sides broke away from automatically after communication was finished, and the road monitoring device continues to ask other vehicles, and the vehicle that carried out communication will inquire signal to this and shield, and no longer responded.
After the road monitoring device reads the ID identity information of these vehicles, will carry out recompile: on these ID identity codings, add current time and address information, transmit to traffic surveillance and control center by the GPRS module.
The road monitoring device receives the various transport information instructions that traffic surveillance and control center issues by the GPRS module, and is kept in the MCU CPU (central processing unit), and these instructions have two kinds:
A kind of is the road information instruction, be packaged in and inquire in the signal data bag, outwards send with broadcast mode, each of process car can be received this signal, processing through car-mounted terminal, remind the driver with speech form, reach the purpose of safe driving, as: speed-limiting messages, no through traffic or banning of turning movement information, complex road condition prompting message etc.
Another is an imperative instruction, be after road monitoring device and car-mounted terminal carry out message exchange, send to a certain car or a certain class car targetedly after clearly knowing the other side's identity, this instruction is through after the processing of car-mounted terminal, will be with voice reminder or directly carry out control action, as overspeed prompting, limit certain class vehicle current, hypervelocity and vehicles peccancy are carried out forced deceleration by the controlling output circuit unit or are stopped etc.
That above-mentioned instruction all can be selected to send to is some, certain some or all road monitoring devices, command content can be adjusted or cancel as required at any time.
The road monitoring device can fixedly install as required or move and be provided with.Fixed is fixed on both sides of the road, with civil power or solar cell for supplying power.Mobile model can be installed on the monitoring vehicle or on the squad car, powers with vehicle power.In the practical application, mobile model road monitoring device can be used with notebook computer, preserved in the database of notebook computer that all are stolen, in violation of rules and regulations or the information of other suspect vehicle, all information through vehicle all will be read out and send into computer when monitoring car or police car are parked in the roadside or travel on the way, the computer handle reads information and preservation information is compared, and will report to the police immediately in case find suspect vehicle.To according to circumstances handle immediately with the car policeman.The vehicle that can't read the ID identity information is judged to violation vehicle (car-mounted terminal is by artificial destruction or damage naturally) forbids setting out on a journey, order finishing immediately.
If rationally distribute such road monitoring device in a certain zone, we just can obtain the real-time road location and the driving recording of this each car of zone:
At current time, the magnitude of traffic flow what state of whole city's each point;
At a time, which vehicle is arranged through certain locality;
Which place was some particular vehicle going in the section sometime; Or the like.
Thereby realize real-time monitoring to urban traffic conditions.
Simultaneously, utilize the high speed information interactive function of system, system can be to inducing by all vehicles in some zone and control, as the lamp preface of adjusting traffic lights, to change speed limit, restriction according to traffic conditions current etc., realizes the macro adjustments and controls to this regional traffic.Simultaneously, because system has identity recognition function, therefore traffic surveillance and control center can send different command informations to each road monitoring device according to condition of road surface, and the road monitoring device can send to different vehicles to these information as requested, be implemented in specific highway section and specific vehicle is induced and control, as sending out forbidden to certain vehicle such as truck or detouring indication; The indication of the car of vehicle distribution outwards direction guiding; Send out reminder alarm to over-speed vehicles; Hypervelocity and vehicles peccancy sent out slow down by force or the instruction etc. of stopping, realize that microcosmic regulates and control.
This shows that by native system, we can realize urban transportation is monitored and control in real time and efficiently with cheap relatively cost.
The traffic surveillance and control center workflow is as follows:
After the road monitoring device is received the ID identity coding information of being sent by automobile, on this identity coding information, add local geocoding and current time coding, upload in real time by the GPRS module, arrive the GPRS server in commmunication company's machine room, enter the front end processor of traffic surveillance and control center again through Leased line, carry out preliminary data processing as decoding, classification, screening, send data server to preserve then.
System server operation Traffic monitoring and Control Software, real time data is carried out monitor management, to various traffic abnormities such as traffic congestion, accident, hypervelocity etc. is made a response, remind corresponding management personnel or mechanism to handling unusually, for example a certain road section traffic volume blocks up, system server knows that by dispatch control Netcom nigh traffic police rushes for the scene rapidly and handles after confirming immediately, simultaneity factor also can send instructions under the GPRS server to the road monitoring device of the highway section periphery that blocks up, these road monitoring devices will be sent out to the vehicle of process and remind instruction, remind the driver with voice mode, as " the place ahead traffic congestion, please detour " etc.Traffic surveillance and control center can constantly carry out analysis and judgement according to gathering the real time data of coming up simultaneously, after removing when confirming to block up, also can send instructions down to these road monitoring devices, removes and reminds.
For some stolen rob or the suspect vehicle of hit-and-run occurs on the road surface, system can give a warning near patrol traffic police immediately, prepare under the situation in place personnel, can also can directly send out the instruction of stopping by traffic surveillance and control center, by the car-mounted terminal on this car this car be carried out and forced to stop by on-the-spot traffic police to this car.
Claims (10)
1. novel traffic monitoring system, it is characterized in that comprising car-mounted terminal (1), road monitoring device (2) and traffic surveillance and control center (3), car-mounted terminal (1) links to each other with wireless mode with road monitoring device (2), and road monitoring device (2) links to each other with mobile public network with traffic surveillance and control center (3).
2. novel traffic monitoring system according to claim 1, it is characterized in that described car-mounted terminal (1) is installed on the vehicle, comprise MCU CPU (central processing unit) A (11), the Transmit Receive Unit A (12) that links to each other with described MCU CPU (central processing unit) A (11), voice driven unit (13), serial data interface unit (16) and the power module A (14) that working power is provided for whole car-mounted terminal (1), described voice driven unit (13) links to each other with the vehicle acoustics circuit, described power module A (14) links to each other with the firing circuit of the vehicle that described car-mounted terminal (1) is installed, and described MCU CPU (central processing unit) A (11) internal memory contains the testing vehicle register coding.
3. novel traffic monitoring system according to claim 1 and 2, it is characterized in that described road monitoring device (2) comprises MCU CPU (central processing unit) B (21), the Transmit Receive Unit B (22) that links to each other with described MCU CPU (central processing unit) B (21), interface circuit unit (26) and the power module B (24) that is connected in the mobile public network signal transmitting and receiving unit (27) on the interface circuit unit (26) and working power is provided for whole road monitoring device (2), described power module B (24) links to each other with the 220V civil power or links to each other with solar cell, or directly use dry cell power supply, described MCU CPU (central processing unit) B (21) internal memory to contain geographical latitude and longitude information or specific address information coding; Described road monitoring device (2) adopts to fixedly install or move and is provided with.
4. novel traffic monitoring system according to claim 1 and 2, it is characterized in that described traffic surveillance and control center (3) is a work LAN (Local Area Network), comprise switch (322), be connected with front end processor (321), data server (323), system server (324), operating terminal (325), router (326) on the switch (322), described front end processor (321) links to each other with the commmunication company data server by Leased line (31), and described router (326) links to each other with wide area network.
5. novel traffic monitoring system according to claim 3, it is characterized in that described traffic surveillance and control center (3) is a work LAN (Local Area Network), comprise switch (322), be connected with front end processor (321), data server (323), system server (324), operating terminal (325), router (326) on the switch (322), described front end processor (321) links to each other with the commmunication company data server by Leased line (31), and described router (326) links to each other with wide area network.
6. novel traffic monitoring system according to claim 2 is characterized in that also being connected with on the described MCU CPU (central processing unit) A (11) controlling output circuit unit (15), and controlling output circuit unit (15) are connected with vehicle fuel injection circuit.
7. novel traffic monitoring system according to claim 2, it is characterized in that described MCU CPU (central processing unit) A (11) is 89C52 single-chip microcomputer and peripheral circuit thereof, described Transmit Receive Unit A (12) is the NRF2401 integrated circuit, described voice driven unit (13) is the ISD2590 integrated circuit, and described serial data interface unit (16) is the MAX232 integrated circuit.
8. novel traffic monitoring system according to claim 3, it is characterized in that described MCU CPU (central processing unit) B (21) is 89C52 single-chip microcomputer and peripheral circuit thereof, Transmit Receive Unit B (22) is the NRF2401 integrated circuit, described mobile public network signal transmitting and receiving unit (27) is the GPRS module, and described interface circuit unit (26) is the MAX232 integrated circuit.
9. novel traffic monitoring system according to claim 3, it is other or be arranged on the monitoring vehicle to it is characterized in that described road monitoring device (2) is disposed on road.
10. novel traffic monitoring system according to claim 6 is characterized in that described controlling output circuit unit (15) is made of with the relay or the solenoid valve that link to each other with the MC1431 integrated circuit the MC1431 integrated circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100602702A CN100495466C (en) | 2005-08-03 | 2005-08-03 | Novel traffic monitoring system |
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| CNB2005100602702A CN100495466C (en) | 2005-08-03 | 2005-08-03 | Novel traffic monitoring system |
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| CN100495466C CN100495466C (en) | 2009-06-03 |
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Cited By (21)
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| CN100478982C (en) * | 2006-08-24 | 2009-04-15 | 武汉盛华微系统技术有限公司 | Radio frequency identification device of implementing remote control management and its control method |
| CN101977203A (en) * | 2010-03-10 | 2011-02-16 | 杨波 | Motor vehicle travelling automatically monitoring system |
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| CN102402859A (en) * | 2011-10-25 | 2012-04-04 | 深圳市华盈泰科技有限公司 | Vehicle identity information acquisition terminal |
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| CN102622872A (en) * | 2012-03-23 | 2012-08-01 | 清华大学 | Vehicle-road collaborative data interactive system by means of multi-mode wireless communication |
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| CN102968899A (en) * | 2012-11-08 | 2013-03-13 | 福建运筹物流信息科技有限公司 | Traffic police law enforcement monitoring method and system based on mobile phone |
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| CN104064034A (en) * | 2013-03-24 | 2014-09-24 | 张生为 | Whole-process monitoring vehicle reminding system of highway |
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| CN105303890A (en) * | 2015-10-27 | 2016-02-03 | 重庆智韬信息技术中心 | Intelligent early warning method for surrounding vehicle with abnormal driving state |
| CN106875716A (en) * | 2017-04-27 | 2017-06-20 | 上海喆之信息科技有限公司 | A kind of intelligent traffic monitoring system |
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| CN109413124A (en) * | 2017-08-17 | 2019-03-01 | 上海擎感智能科技有限公司 | Internet of Things control method and device, storage medium, terminal based on automobile |
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2005
- 2005-08-03 CN CNB2005100602702A patent/CN100495466C/en not_active Expired - Fee Related
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| CN109413124B (en) * | 2017-08-17 | 2023-01-24 | 上海擎感智能科技有限公司 | Internet of things control method and device based on automobile, storage medium and terminal |
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