CN1607558A - Wayside signaling management system for freeway - Google Patents
Wayside signaling management system for freeway Download PDFInfo
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- CN1607558A CN1607558A CN 200310100163 CN200310100163A CN1607558A CN 1607558 A CN1607558 A CN 1607558A CN 200310100163 CN200310100163 CN 200310100163 CN 200310100163 A CN200310100163 A CN 200310100163A CN 1607558 A CN1607558 A CN 1607558A
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Abstract
This invention relates to a signal management system for an expressway. Said system divides the way into several end-to-end closed sections, a vehicle detector containing RF identification and emit, a reader, a microprocessor, a power supply and flash alarm unit is set at each equal distance position connected by system bus connecting to the computer of the command center, the system also includes a responder attached to the vehicle, the reader and the responder form the RF identifying system, which can avoid and reduce vehicle colliding matters.
Description
Technical field
The invention belongs to intelligent transportation system (ITS:INFORMATION TRANSPORT SYSTEM) field, particularly a kind of highway wayside signaling management system.
Background technology
In the later stage eighties, developed country is crowded day by day for the road traffic that common solution is faced, and the road network traffic capacity does not adapt to the problem of volume of traffic sharp increase demand, and the experimental study of intelligent traffic transportation management system is carried out in beginning on a large scale.The ITS research starting of Japan is morning, and existing practical product puts goods on the market, and for example, existing 200,000 cars (till nineteen ninety-five) have been equipped the road and led device (traffic-information service device).The ITS of U.S. research is started late, and just began investment in 1991 to develop research, but development is rapid.The U.S., Europe, Japan three big study bases have been formed at present in the world, respectively at separately ITS America, ERTICO (European Road Transport Telematic Implementation CoordinationOrganization) and VERTIS (Vehicle, Road and Traffic Intelligence Society) under the coordinative command, carrying out the research that differs from one another.
Because ITS is in the development experiments stage, its function and scale constantly develop expansion, and the description of its formation also is not quite similar.With the U.S. is example, and the ITS development project can be divided into seven classes, and the system relevant with the present invention is summarized as follows:
1. Xian Jin driver information system ADIS (Advanced Driver Information System)
This system provides relevant trip information to the user, improves Transportation Demand Management.This system and ATMS system are combined, and the driver just can obtain various transport information (road conditions, traffic, service facility position and tour guide information etc.) by truck-mounted computer and wireless telecommunications.The driver can utilize vehicle mounted positioning navigation system (GPS) to provide starting point and destination on truck-mounted computer, truck-mounted computer and control center carry out both-way communication, can select best travel route automatically according to Real-time Traffic Information, avoid traffic congestion and obstruction.This system has improved people's trip ability and safety coefficient, choose reasonable trip mode and route, thus make the traffic flow on the road network obtain the balance distribution, reduce congested in traffic and obstruction, also can promote the use of high occupation rate vehicle, thereby improve conevying efficiency.
2. Xian Jin vehicle control system AVCS (Advanced Vehicle Control System)
The purpose of AVCS is that exploitation helps the driver to carry out the various technology of automotive vehicle control, thereby makes ride safety of automobile, efficient.The AVCS field comprises driver's warning and help, avoids and driving technology automatically such as barrier collision.In fact, AVCS has the most long-term potential benefit, also departments such as automobile engineering, electronic engineering has been proposed maximum challenge simultaneously.
3. Xian Jin rural traffic system ARTS (Advanced Rural Transport System)
This system is included as the wireless emergency distress system that driver and victim of the accident provide assistance, the real-time alerting system of unfavorable road and traffic environment, and about driver's service facility and infosystems such as tourism route, sight spot.
4. automatic high speed highway system AHS (Automated Highway System)
This system comprises vehicle self-navigation and control, automatic traffic management, and accident treatment robotization.
In a word, more than all systems be intended to collect the highway car stream information as far as possible, and concentrate and to feed back in traffic monitoring command centre, be convenient to vehicle scheduling, shunting, enforcement monitoring or the like.But the neither one system accomplishes to work as specially the mishap generation on the highway major trunk roads (too slow as certain car speed of a motor vehicle---be lower than minimum speed limit or hinder temporary parking for some reason), in time back car is given to warn in advance by automatic system, make its deceleration and observe and to take measures again after clear.Though some also can reach similar purpose, lead device by the whole world wide position position location satellite (GPS) and truck-mounted computer, road and wait and realize that the hardware of equipment has high input, it is bigger to promote difficulty.
Chinese patent application 02113003.5 discloses a kind of early warning system that prevents that highway from knocking into the back and colliding.Its technical scheme is to comprise central processing unit CP and the detection line DL that is made up of microwave detector, road terminal and alarm indicator; Detection line DL is installed in the inboard of express highway all-way two-way lane equally spacedly and is connected with central processing unit CP by data transmission link L1, each detection line is connected with detection line before and after it respectively, and the road terminal among the detection line DL is connected with alarm indicator with microwave detector respectively.Comprise in the method for early warning with detection line numbering, car number, by time, roadside and send the coherent detection line to apart from the information code character of, the instant speed of a motor vehicle and the normal speed of a motor vehicle.Compile, handle the information that all detection lines of all fronts send by central processing unit at last, show the real time position and the traffic safety situation of all vehicles completely.
Above-mentioned early warning system does not have the notion of closed interval, it detects vehicle " physical location " by detection line is that system is according to the residing position of vehicle, as following distance, vehicle speed, information such as information such as the relative velocity of forward and backward car and position, residing track self comprehensively judge whether to report to the police or alarm.But the real time position of vehicle is very difficult detected at any time in actual applications.Simultaneously this early warning system is passed by the vehicle of this detection line by the microwave detector perception, determines the position of vehicle on the track, and perceptual signal is sent to the road terminal processes.The data volume of this system handles and transmission is big, and can't discern the examination information of single unit vehicle, and in robotization traffic route system, there is technical matters in the aspects such as information that this system discerns each car for road management, comprehensively.
Summary of the invention
The objective of the invention is to freeway facility itself and can carry out SIGNALS MANAGEMENT automatically, to normal property, multiple traffic events, particularly the accident symptom of a trend sent out, can in time send warning signal in advance to the vehicle that travels in forward and backward side's certain distance, remind forward and backward side's vehicle to note slowing down, avoid the generation of pernicious major issues such as knocking into the back, continuous many cars knock into the back.Simultaneously, by dynamic monitoring, in time grasp the running status of each car to travel condition of vehicle, in time vehicles peccancy is given a warning and places on record and carry out necessary punishment, therefore, can reduce the violation phenomenon on the highway significantly, the incidence of minimizing accident.
For achieving the above object, technical scheme of the present invention is to implement like this:
A kind of highway wayside signaling management system comprises wagon detector 6, system bus 5, it is characterized in that:
Described management system is divided into several end to end sealing highway sections with a highway, each equidistant position is provided with described wagon detector 6 in described sealing highway section, described each wagon detector 6 links to each other by system bus 5, and described system bus 5 is connected with command centre computing machine 7;
Described wagon detector 6 comprises rfid transmissions and reader 3, microprocessor 1, power supply 2 and flash of light alarm device 4; Described microprocessor 1 links to each other with described flash of light alarm device 4 on the one hand by described power supply 2, on the other hand, is connected with described system bus 5;
Described management system also comprises a transponder that is attached on the vehicle, and described transponder stores the identifying information of current vehicle with the mode of artificial input or the input of electronics automatic coding at the place, expressway access; The transponder of described rfid transmissions reader 3 on being attached to vehicle formed vehicle radio-frequency recognition system (claiming electronic mark again);
When the monitoring section operation of vehicle at highway, reader on the monitoring network (detecting device of every 100-300 rice) constantly and the transponder on the vehicle carry out exchanges data, computing machine by network and traffic control center, the point duty person can grasp information such as the travelling speed, position of the arbitrary vehicle in the highway section of having jurisdiction over whenever and wherever possible, can be except system self to the abnormal conditions automatic early-warning, the point duty person can also carry out necessary intervention and command and management to any vehicle.
In concrete enforcement, rfid transmissions that is comprised in the described wagon detector 6 described wagon detectors 6 and reader 3 are contactless reader; Described transponder is a non-contact IC card, and stores the identifying information of current vehicle; Described rfid transmissions and reader 3 and transponder constitute electronics non-contact vehicle recognition system jointly.
In the application of reality, the length in described each highway section is 10～50 kilometers; The gap length of described each wagon detector 6 is 50～300 meters.
In the application of reality, the length in described each highway section is the 20-50 kilometer; The gap length of described each wagon detector 6 is 200 meters.
In the application of reality, described wagon detector 6 is arranged on the isolation strip, center of bidirectional high speed highway, and first wagon detector 6 in each highway section is in the state of often opening.
In the application of reality, described system bus 5 transmits signal in the mode of CANBUS communications protocol or signal is transmitted in optical-fibre communications.
In the application of reality, described flash of light alarm device 4 is made up of super bright red light emitting diodes.
In the application of reality, the length in described each highway section is 20 kilometers; The gap length of described each wagon detector 6 is 200 meters; Described wagon detector 6 is arranged on the isolation strip, center of bidirectional high speed highway, and first wagon detector 6 in each highway section is in the state of often opening; Described system bus 5 transmits signal in the mode of CANBUS communications protocol; Described flash of light alarm device 4 is made up of super bright red light emitting diodes.Rfid transmissions that is comprised in the described wagon detector 6 and reader 3 are contactless reader; Described transponder is a non-contact IC card, and stores the identifying information of current vehicle; Described rfid transmissions and reader 3 and transponder constitute electronics non-contact vehicle recognition system jointly.
In the application of reality, described command centre computing machine 7 is used for road monitoring, and described command centre computing machine 7 receives the alerting signal of being sent by wagon detector 6, and reports to traffic control center.
Can learn by above-mentioned explanation, the technical program is divided into highway in the highway section of sealing, and each equidistant position is provided with described wagon detector 6 in described sealing highway section, wagon detector 6 comprises rfid transmissions and the both contactless reader of reader 3, this management system comprises that also a transponder that is attached on the vehicle is an IC-card, described transponder stores has the identifying information of current vehicle, and described rfid transmissions is formed the vehicle radio-frequency recognition system with reader 3 and the transponder that is attached on the vehicle.When the monitored section operation of vehicle at highway, reader on the wagon detector constantly and the transponder on the vehicle carry out exchanges data, computing machine by network and traffic control center, the point duty person can grasp the travelling speed of the arbitrary vehicle in the highway section of having jurisdiction over whenever and wherever possible, information such as position, to place on record automatically for the vehicle native system of driving over the speed limit simultaneously, and warn its act of violating regulations automatically, order it to slow down immediately and notify each outlet automatically by system, each outlet can give necessary punishment according to the time length violating the regulations of vehicles peccancy and character; Under inclement weather, can press instruction operation by the native system staff vehicles; Native system can be as accurate as by traffic control center has at fingertips for the speed of a motor vehicle, highway section, place, the ruuning situation of operating each operational vehicle in the linchpin highway section, accurately commander.
Use the present invention, can prevent and reduce the shunt into one another generation of accident of rear-end collision significantly.The present invention passes through the dynamically management in time to vehicle in service, even when rain, mist, snow weather, generally also can not close highway.Particularly at night and dusk, when morning, sight line was bad, the present invention more can bring into play the native system effect, and road speed and security are improved greatly.The present invention is a kind of a kind of intelligent transportation management system that can standard be applied to highway.Increase the transponder of rfid transmissions reader 3 on being attached to vehicle in the system and formed the vehicle radio-frequency recognition system, can accurately judge the information of each vehicle.Therefore its special reality that adapts to China's national situation and express highway intelligent transportation management system has very broad application prospects.
Description of drawings
Fig. 1 is the circuit theory block scheme of wagon detector involved in the present invention;
Fig. 2 is a system works synoptic diagram involved in the present invention
Fig. 3 is the profile synoptic diagram of Fig. 1;
Wherein among Fig. 3,11 represent top covers, 8 expression radar detection window acoustic sounding windows, the super bright LED array of 9 expressions, 10 expression firm bankings.
Describe the architectural feature and the duty of system of the present invention in detail below in conjunction with concrete embodiment.
Embodiment
Present embodiment is divided into several end to end sealing highway sections with operating highway, and described sealing highway section is meant the location that does not have vehicles such as fork in the road or service area to shunt or be detained in the middle of the highway section.According to above-mentioned requirements, the distance in each highway section can not wait for the 20-50 kilometer.Each wagon detector is spaced apart 100 meters in each above-mentioned highway section.Described each wagon detector 6 links to each other by system bus 5, and described system bus 5 is connected with command centre computing machine 7.
Also used the non-contact vehicle recognition system in the technical program simultaneously, contact type intelligent card (IC-card) has been obtained in field of traffic widely and has been used.
Non-contact IC card (transponder) is under discontiguous situation and contactless reader (rfid transmissions reader) exchange message, contactless reader is by the identification to information on the non-contact IC card, receive the information of each vehicle, and the information that will receive is given other detecting devices and central computer by Network Transmission.Therefore the read-write coverage of common contactless smart card, can significantly save time in a lot of use occasions (for example motorbus, subway, ferry, highway tolling system etc.) of transportation industry less than 30 meters in the prior art, raises the efficiency.
The application of contactless recognition system in highway is in order to reduce the traffic congestion at road toll mouth place as electronic charging system without parking (ETC), accelerates that vehicle builds by the speed of charging aperture.System adopts the car-mounted device record to pay out information such as money agreement, after vehicle attaches IC-card is arranged, when by the electronic charging mouth, utilize communicating by letter between charging aperture communication antenna and the vehicle-mounted IC card, make computer charge system and IC-card both sides all finish record, thereby realize the electronic accounting charge toll.
In the technical program, wagon detector 6 comprises rfid transmissions and reader 3 (contactless reader), microprocessor 1, power supply 2 and flash of light alarm device 4; Described microprocessor 1 links to each other with described flash of light alarm device 4 on the one hand by described power supply 2, on the other hand, is connected with described system bus 5.
Described management system also comprises a transponder (non-contact IC card) that is attached on the vehicle, and described transponder stores the identifying information of current vehicle with the mode of artificial input or the input of electronics automatic coding at the place, expressway access; The transponder of described rfid transmissions reader 3 on being attached to vehicle formed the vehicle radio-frequency recognition system;
The situation of passing through of detected vehicle is divided into following several situation:
A. when vehicle passes through with normal speed (as 50-110 kilometer/hour), after the rfid transmissions of wagon detector 6 and reader 3 read the signal of vehicle transponder, digital signal is conveyed to microprocessor 1.Through the analysis and judgement of microprocessor 1,, belong to normally and pass through if in the limiting time of default (if the distance of two detecting devices is 100 meters, then should be in 7.2-3.26 second), think that then vehicle speed is normal by this interval time.So continue to send enabling signal to next interval wagon detector 6, make the 6 startup work of next stage wagon detector, go on successively.
B. when vehicle be trapped in interval in or the speed of a motor vehicle cross when slow, in limiting time (if the minimum speed limit of the highway of this section is 50 kilometers/hour, then pass through one 100 meters interval, its time should be not more than 7.2 seconds) fail to arrive this check point, just wagon detector 6 does not detect the signal that vehicle passes through, at this moment system thinks that then this vehicle has been trapped in this interval, so send the wagon detector 6 that command signal is given this interval downstream (rear of direction is entered by garage), make downstream 8-10 super bright red diodes dot matrix 3 low frequency flicker on the interval wagon detector 6 luminous, follow-up vehicle to the downstream sends supervisory signal, reminds back car Reduced Speed Now.
If b---1. this car passes through this interval during reporting to the police, then said process down carries out successively, for example: fault car low speed driving on highway is arranged, and its rear will continue to have the flashing light alarm district of 800-1000 rice to continue to follow this vehicle operating, leave highway until it.Simultaneously, traffic control center can also be by the subsidiary little loudspeaker of the transponder on electronic variable warning sign and the vehicle, and this car of direct command quickens or urges it to leave highway.
If b---2. this vehicle is trapped in this interval because of a variety of causes, the downstream direction in its highway section will continue to report to the police, time surpasses after 2-5 minute, then wagon detector 6 will send event report, event occurs to the traffic control center report by grid 5, simultaneously, traffic control center can also be by the subsidiary little loudspeaker of the transponder on electronic variable warning sign and the vehicle, and this car of direct command quickens or urges it to leave highway.
If C. interval wagon detector 6 detected vehicles by the time less than limiting time (if the Maximum speed limit of this section highway is 120 kilometers/hour, then its time by these 100 meters intervals should be not less than 3 seconds) system then is judged to this overspeed of vehicle and travels, and immediately by system upstream (the place ahead of direction is entered by garage) wagon detector 6 send the overspeed warning signal.At this moment the 3-5 of upstream interval wagon detector will send the ruddiness alerting signal of quick flash of light immediately, and all are sent alarm signal by this interval vehicle, remind the deceleration of hypervelocity car and remind other car vigilance.When if still do not slow down in 3-5 interval continuously, system is the notice traffic control center automatically, and can be by the subsidiary little loudspeaker of the transponder on electronic variable warning sign and the vehicle, this car of direct command slows down, and place on record simultaneously, notify the number-plate number of each this vehicles peccancy of exit, give corresponding punishment when treating its outlet.
Native system is by the automatic detection to vehicle in the highway section, hypervelocity, low speed and the temporary parking of vehicle in the highway section, contingent knock into the back or the like are carried out timely, synchronous monitoring, the automatic simultaneously operational vehicle to upstream and downstream sends to be reminded and supervisory signal, thereby avoids the generation of pernicious major issues such as knocking into the back, continuous many cars knock into the back.Simultaneously the electronic vehicle recognition system that constituted of rfid transmissions reader and transponder can be grasped the details of on highway each car of travelling, and can monitor constantly the information such as transport condition of vehicle under the situation of video monitoring not having.
Claims (9)
1. a highway wayside signaling management system comprises wagon detector (6), system bus (5), it is characterized in that:
Described management system is divided into several end to end sealing highway sections with a highway, each equidistant position is provided with described wagon detector (6) in described sealing highway section, described each wagon detector (6) links to each other by system bus (5), and described system bus (5) is connected with command centre's computing machine (7);
Described wagon detector (6) comprises rfid transmissions and reader (3), microprocessor (1), power supply (2) and flash of light alarm device (4); Described rfid transmissions is electrically connected with microprocessor (1) with reader (3), and described microprocessor (1) links to each other with described flash of light alarm device (4) on the one hand by described power supply (2), on the other hand, is connected with described system bus (5);
Described management system also comprises a transponder that is attached on the vehicle, and described transponder stores has the identifying information of current vehicle; The transponder of described rfid transmissions reader (3) on being attached to vehicle formed the vehicle radio-frequency recognition system;
When vehicle travels in the highway section of described highway wayside signaling management system, described rfid transmissions and reader (3) receive the signal that sends from described transponder, and with the signal that received after microprocessor (1) is handled, import the flash of light alarm device (4) of described current wagon detector (6), simultaneously signal is transferred to other wagon detectors (6) and command centre's computing machine (7) by system bus (5).
2. highway wayside signaling management system as claimed in claim 1 is characterized in that:
Rfid transmissions that is comprised in the described wagon detector (6) and reader (3) are contactless reader; Described transponder is a non-contact IC card, and stores the identifying information of current vehicle; Described rfid transmissions and reader (3) and transponder constitute electronics non-contact vehicle recognition system jointly.
3. highway wayside signaling management system as claimed in claim 1 is characterized in that:
The length in described each highway section is 10～50 kilometers; The gap length of described each wagon detector (6) is 50～300 meters.
4. highway wayside signaling management system as claimed in claim 1 is characterized in that: the length in described each highway section is 20～50 kilometers; The gap length of described each wagon detector (6) is 200 meters.
5. highway wayside signaling management system as claimed in claim 1 is characterized in that: described wagon detector (6) is arranged on the isolation strip, center of bidirectional high speed highway, and first wagon detector (6) in each highway section is in the state of often opening.
6. highway wayside signaling management system as claimed in claim 1 is characterized in that: described system bus (5) transmits signal with the mode or the optical-fibre communications of CANBUS communications protocol.
7. highway wayside signaling management system as claimed in claim 1 is characterized in that: described flash of light alarm device (4) is made up of super bright red light emitting diodes.
8. highway wayside signaling management system as claimed in claim 1 is characterized in that: the length in described each highway section is 20 kilometers; The gap length of described each wagon detector (6) is 200 meters; Described wagon detector (6) is arranged on the isolation strip, center of bidirectional high speed highway, and first wagon detector (6) in each highway section is in the state of often opening; Described system bus (5) transmits signal in the mode of CANBUS communications protocol; Described flash of light alarm device (4) is made up of super bright red light emitting diodes.Rfid transmissions that is comprised in the described wagon detector (6) and reader (3) are contactless reader; Described transponder is a non-contact IC card, and stores the identifying information of current vehicle; Described rfid transmissions and reader (3) and transponder constitute electronics non-contact vehicle recognition system jointly.
9. as the described highway wayside signaling of one of claim 1～8 management system, it is characterized in that: described command centre computing machine (7) is used for road monitoring, described command centre computing machine (7) receives the alerting signal of being sent by described wagon detector (6), and reports to traffic control center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200310100163 CN1607558A (en) | 2003-10-14 | 2003-10-14 | Wayside signaling management system for freeway |
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| CN 200310100163 CN1607558A (en) | 2003-10-14 | 2003-10-14 | Wayside signaling management system for freeway |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799985A (en) * | 2010-03-18 | 2010-08-11 | 招商局重庆交通科研设计院有限公司 | Highway tunnel traffic identification method |
| CN101819720A (en) * | 2010-05-05 | 2010-09-01 | 苏州大学 | Collision avoidance system of non-motor vehicle and control method thereof |
| CN102147974A (en) * | 2010-02-09 | 2011-08-10 | 李丽 | Traffic management system and method |
| CN1881278B (en) * | 2005-06-16 | 2011-08-31 | 西安西谷微功率数据技术有限责任公司 | Micro-power radio frequency vehicle running path tracking and intelligent toll road management system |
| CN102479430A (en) * | 2010-11-26 | 2012-05-30 | 陈汇鑫 | Traffic information processing method used for highway |
| CN102592326A (en) * | 2012-03-05 | 2012-07-18 | 永嘉县瓯工电子机械有限公司 | IC (integrated circuit) card type highway charging system capable of measuring speed in whole journey and charging method |
| CN101695927B (en) * | 2009-10-22 | 2012-09-05 | 中国北车股份有限公司大连电力牵引研发中心 | Remote identification system of rolling stock |
| CN107180533A (en) * | 2017-06-22 | 2017-09-19 | 北京中交华安科技有限公司 | Road method for early warning and device |
| CN107615350A (en) * | 2015-08-06 | 2018-01-19 | 欧姆龙株式会社 | Vehicle carried device, communicator and vehicle management system |
| CN109523791A (en) * | 2018-10-31 | 2019-03-26 | 武汉烽火众智数字技术有限责任公司 | A kind of early warning analysis method and device for being detained vehicle |
| CN111383448A (en) * | 2018-12-29 | 2020-07-07 | 阿里巴巴集团控股有限公司 | Traffic information processing method and device based on road section |
| CN113570864A (en) * | 2021-09-22 | 2021-10-29 | 深圳市城市交通规划设计研究中心股份有限公司 | Method and device for matching running path of electric bicycle and storage medium |
| CN114743380A (en) * | 2022-03-04 | 2022-07-12 | 中铁发展投资有限公司 | Method for detecting traffic flow data quality of highway |
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2003
- 2003-10-14 CN CN 200310100163 patent/CN1607558A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881278B (en) * | 2005-06-16 | 2011-08-31 | 西安西谷微功率数据技术有限责任公司 | Micro-power radio frequency vehicle running path tracking and intelligent toll road management system |
| CN101695927B (en) * | 2009-10-22 | 2012-09-05 | 中国北车股份有限公司大连电力牵引研发中心 | Remote identification system of rolling stock |
| CN102147974B (en) * | 2010-02-09 | 2013-12-04 | 李丽 | Traffic management system and method |
| CN102147974A (en) * | 2010-02-09 | 2011-08-10 | 李丽 | Traffic management system and method |
| CN101799985A (en) * | 2010-03-18 | 2010-08-11 | 招商局重庆交通科研设计院有限公司 | Highway tunnel traffic identification method |
| CN101819720A (en) * | 2010-05-05 | 2010-09-01 | 苏州大学 | Collision avoidance system of non-motor vehicle and control method thereof |
| CN102479430A (en) * | 2010-11-26 | 2012-05-30 | 陈汇鑫 | Traffic information processing method used for highway |
| CN102592326A (en) * | 2012-03-05 | 2012-07-18 | 永嘉县瓯工电子机械有限公司 | IC (integrated circuit) card type highway charging system capable of measuring speed in whole journey and charging method |
| CN107615350A (en) * | 2015-08-06 | 2018-01-19 | 欧姆龙株式会社 | Vehicle carried device, communicator and vehicle management system |
| CN107180533A (en) * | 2017-06-22 | 2017-09-19 | 北京中交华安科技有限公司 | Road method for early warning and device |
| CN109523791A (en) * | 2018-10-31 | 2019-03-26 | 武汉烽火众智数字技术有限责任公司 | A kind of early warning analysis method and device for being detained vehicle |
| CN109523791B (en) * | 2018-10-31 | 2021-10-26 | 武汉烽火众智数字技术有限责任公司 | Early warning analysis method and device for retained vehicle |
| CN111383448A (en) * | 2018-12-29 | 2020-07-07 | 阿里巴巴集团控股有限公司 | Traffic information processing method and device based on road section |
| CN113570864A (en) * | 2021-09-22 | 2021-10-29 | 深圳市城市交通规划设计研究中心股份有限公司 | Method and device for matching running path of electric bicycle and storage medium |
| CN114743380A (en) * | 2022-03-04 | 2022-07-12 | 中铁发展投资有限公司 | Method for detecting traffic flow data quality of highway |
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