CN106803351A - A kind of vehicle priority pass method and system - Google Patents
A kind of vehicle priority pass method and system Download PDFInfo
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- CN106803351A CN106803351A CN201510834803.1A CN201510834803A CN106803351A CN 106803351 A CN106803351 A CN 106803351A CN 201510834803 A CN201510834803 A CN 201510834803A CN 106803351 A CN106803351 A CN 106803351A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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Abstract
The invention provides a kind of vehicle priority pass method and system, the described method comprises the following steps：Receive the label information on vehicle and be identified；The information of identification is sent to traffic light controller；Traffic light controller is according to the information for recognizing for vehicle provides green light priority pass；The priority pass of the vehicle terminates after the label on vehicle leaves identification range, realize become more meticulous, targetedly vehicle preferentially manage.
Description
Technical field
The present invention relates to municipal intelligent traffic field, and in particular to a kind of vehicle priority pass method and system, be related specifically to the priority pass method of public transit vehicle.
Background technology
Public traffic in priority is the basic strategy of national communication, and wherein Intersections is preferential by being the important measures in public traffic in priority.The conventional wagon detector by being embedded on section, to differentiate that public transit vehicle is reached, but this detection mode can not obtain the information of public transit vehicle, such as bus is to need or keep straight at this crossing, whether need it is preferential, it is delayed how long etc.；If other public transit vehicle mixes row with public vehicles, detector can not be distinguished；Detector can only once obtain position, and the dynamic position of bus can not be grasped.Original vehicle detection differentiates the shortcoming of means so that public traffic in priority strategy can not play maximum utility.
At present, Coil Detector technology and GPS detection techniques are relatively broad in existing public traffic in priority scheme application, but in actual application, still suffer from some shortcomings, are mainly reflected in：Coil Detector technology is only detected to public transit vehicle in the Fixed Sections of road and vehicle cannot be detected and monitored on section；GPS technology with crossing unit real time interaction information, can not increase the complexity of control centre's priority algorithm after information of vehicles is obtained while lacking flexibility.In addition, in the case of path resource scarcity, how allocation priority also urgent need to resolve, public transit system is separated with traffic signal system in existing bus signals priority system, traffic signal system can not give public transit vehicle one accurate priority valve because it cannot obtain the valid data of vehicle from public transit system in time, so that the flow of public traffic in priority is more complicated, it is difficult to reach preferential purpose.
The content of the invention
In view of current vehicle preference strategy above shortcomings, the present invention provides a kind of vehicle priority pass method, realize become more meticulous, targetedly vehicle preferentially manage, for vehicle and other emergency vehicles provides it is different grades of preferentially, enable them to preferentially obtain green light, faster by intersection.
The invention provides a kind of vehicle priority pass method, the described method comprises the following steps,
Receive the label information on vehicle and be identified；
The information of identification is sent to traffic light controller；
Traffic light controller is according to the information for recognizing for vehicle provides green light priority pass；
The priority pass of the vehicle terminates after the label on vehicle leaves identification range.
According to the principle of the present invention, methods described also includes judging according to the signal attenuation for receiving label on vehicle the particular location of vehicle.
According to the principle of the present invention, methods described also includes being sent to the information of identification in reading concentrating equipment, and be sent to the information of identification in traffic light controller by signal adapter by the reading concentrating equipment.
According to the principle of the present invention, methods described is additionally included in and LED light is equipped with vehicle tag, and the LED light receives the priority signal of traffic light controller transmission and shown, driver judges whether to obtain right-of-way according to the information of display.
According to the principle of the present invention, the label is 2.4GRFID readable-writable electronic labels, and electronic code is provided with the electronic tag.
According to the principle of the present invention, the label information on the vehicle is received by RFID card reader and is identified, the RFID card reader judges the particular location of vehicle by aerial signal decay.
Described that the information of identification is sent in RFID data concentrator according to the principle of the present invention, the RFID data concentrator is connected with the RFID card reader, and the RFID data concentrator is connected by signal adapter with the traffic light controller.
Another side of the invention, a kind of vehicle priority system, including mark module, read module, data storage module and signal control module, the read module is connected with the mark module and data storage module respectively, and the signal control module is connected with the data storage module and mark module respectively；
The mark module includes label, and the label is located at the inner side of the front and rear glass of vehicle, license number, circuit, priority level and vehicle-mounted number for registration of vehicle；
The read module is used to receive the information of label and be identified；
The data storage module receives the information of read module and is sent to signal control module；
The signal control module is according to the information for receiving for vehicle provides green light priority pass.
According to the principle of the present invention, the label is 2.4GRFID readable-writable electronic labels, and the electronic tag is provided with LED light.
According to the principle of this hair, the read module is RFID card reader, and the data storage module is that RFID reads concentrating equipment, and the signal control module is traffic light controller.
A kind of vehicle priority pass method of the principle of the invention, comprises the following steps：Receive the label information on vehicle and be identified；The information of identification is sent to traffic light controller；Traffic light controller is according to the information for recognizing for vehicle provides green light priority pass；The priority pass of the vehicle terminates after the label on vehicle leaves identification range, can be to the remote read-write of vahicles label, the label multiple bearing of vehicle can be interacted with traffic light controller, it is achieved thereby that become more meticulous, targetedly vehicle preferentially manage；Specifically by vehicle carried electronic label, the information such as identity, position, the override requests of vehicle can effectively, be accurately recognized, by radio communication mode, be wirelessly transmitted to traffic light controller, be vehicle customization Priority Service.Change original wagon detector None- identified vehicle and circuit, it is impossible to distinguish the shortcoming of public vehicles and public transit vehicle.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, the present invention and its feature, profile and advantage will become more apparent upon.Identical mark indicates identical part in whole accompanying drawings.Accompanying drawing is not drawn to scale deliberately, it is preferred that emphasis is purport of the invention is shown.
A kind of vehicle priority pass method schematic diagram that Fig. 1 is provided for the present invention.
A kind of vehicle priority system schematic diagram that Fig. 2 is provided for the present invention.
Fig. 3 is the contrast schematic diagram of the present invention and conventional sensing control.
Specific embodiment
In the following description, a large amount of concrete details are given to provide more thorough understanding of the invention.It is, however, obvious to a person skilled in the art that the present invention can be carried out without one or more of these details.In other examples, in order to avoid obscuring with the present invention, it is not described for some technical characteristics well known in the art.
In order to thoroughly understand the present invention, detailed step and specific structure will be proposed in following description, to explain technical scheme.Optimal case study on implementation of the invention is described in detail as follows, but in addition to these detailed descriptions, the present invention can also have other embodiment.
The invention provides a kind of vehicle priority pass method, as shown in figure 1, method is comprised the following steps,
Step S1：Receive the label information on vehicle and be identified, label is arranged on vehicle first, the label is electronic tag, on glass before and after vehicle (inner side), electronic code is implanted into electronic tag, and the information such as license number, circuit, priority level, the vehicle-mounted number of public transit vehicle are recorded on electronic code, electronic tag is preferably 2.4GRFID readable-writable electronic labels, sender unit is provided with the chip of electronic tag, can at a distance be read by card reader and (read apart from 100-150 meters, reading speed>120 kilometers/hour), the electronic code and identification information that electronic tag is write are transmitted to card reader, card reader can read-out mark this object electronic code.Be transferred to this electronic code in system simultaneously by card reader, according to the control program of default, to target implementing monitoring and management.Label information on the vehicle is received by RFID card reader and is identified, and RFID card reader judges the particular location of vehicle by aerial signal decay, RFID card reader (can be read apart from 100-150 meters, reading speed with distance reception RFID information>120 kilometers/hour), can receive simultaneously more than 100 electronic tags, data write-in can be carried out to electronic tag in real time；Public transit vehicle order can be received by antenna to judge vehicle heading and can decay by aerial signal, position public transit vehicle present position scope.RFID readable-writable electronic labels are implanted into car plate by RFID electronic license plate technologies in the present invention, the features such as there is quick, accurate, non contact angle measurement, communicate reliable and stable so as to it, can overcome the disadvantages that the deficiency of Coil Detector and GPS detections so that the detection towards individual vehicle more becomes more meticulous.
Step S2：The information of identification is sent to traffic light controller, be sent to the information of identification in RFID data concentrator by RFID card reader, the RFID data concentrator is connected with the RFID card reader, and the RFID data concentrator is connected with the traffic light controller by signal adapter and communicates information to traffic light controller；RFID data concentrator can between many RFID card readers by 2.4G radio frequencies realize wireless two-way communication and can will in data set after information exchange is carried out and traffic light controller between.
Step S3：Traffic light controller is according to the information for recognizing for vehicle provides green light priority pass, it is different according to the information for receiving, tell different priority levels, LED light is equipped with vahicles label, can be pointed out when label enters LED in the range of RFID card reader, vehicle comes into RFID card reader scope and is read into；After vehicle override requests are processed, LED can point out to have obtained preferential.LED shows that whether normal enable to driver to be apparent from system works, if obtain preferential.
Step S4：The priority pass of the vehicle terminates after the label on vehicle leaves identification range, that is when the label information on the vehicle that RFID card reader is received, identify in the case that vehicle has been obtained for right-of-way and carried out preferentially passing through crossing, by the information transmission at crossing to traffic light controller, traffic light controller control signal lamp terminates priority pass to the vehicle that will be obtained.In the present invention by vehicle carried electronic label, the information such as identity, position, the override requests of vehicle can effectively, be accurately recognized, by radio communication mode, be wirelessly transmitted to traffic light controller, be vehicle customization Priority Service.When changing the mode of original use wagon detector, it is impossible to recognize vehicle and circuit, it is impossible to distinguish the shortcoming of public vehicles and priority pass vehicle；And the vehicle carried electronic label in the present invention can be in read range by multiple bearing so that the positional information of vehicle is definitely, using the teaching of the invention it is possible to provide more accurate mode of priority；The information such as the timetable and delay time at stop, vehicle-mounted number of vehicle can be in real time write in electronic tag by card reader, the priority requirement grade of vehicle can be dynamically adjusted；Wirelessly communicated between all devices, can be without carrying out the civil engineerings such as comprehensive wiring in construction；Communication between devices are free communication, it is not necessary to extraneous expense radio communication expense.
The information of identification can also be sent to bus dispatching center by RFID card reader in the present invention, such that it is able to realize the short haul connection and data transfer between public transport and bus dispatching center, public transport and roadside RFID read-write equipment (including RFID card reader, RFID data concentrator), public transport abnormal information after the treatment of the public transport data or car-mounted computer that will collect in real time, be reliably transmitted to bus dispatching center；Public transport data after center processing and intersection signal control module are interacted, is that intersection signal control module formulates public traffic in priority scheme transmission necessary data.Wherein, upload to bus dispatching centre data to be stored in database, can conveniently be inquired about, for follow-up vehicle priority pass provides decision-making foundation.
Communication link is specific as follows in the present invention, vehicle carried electronic label and bus dispatching center to center communications (or up-link).Platform read-write cell carries out authorization check to all entrance platform communication zone vehicle carried electronic labels and information reads, then data are sent to transit operation center in real time by wireless network.Then bus dispatching center communicates (or downlink) with intersection signal control module.Center gives the priority valve of priority requisition public transit vehicle and integrates corresponding operation information and retransmits to vehicle carried electronic label, corresponding information is sent to intersection signal control module using the two-way communication of crossing and website read write line, is that its formulation controlling of bus priority scheme is ready.Intersection signal control module and website RFID read-write unit communication (write-in priority scheme).After controlling of bus priority scheme is formulated at crossing, preference strategy is write by vehicle carried electronic label by the two-way communication of read write line.Crossing RHD read-write cells communicate (execution priority scheme) with vehicle carried electronic label.According to priority scheme, public transport can carry out speed guiding (acceleration and deceleration) and the signal timing dial control parameter that has optimized of cooperation to it using strategy in station or public transport are outbound, can make that vehicle is in good time not parking to travel to and through intersection.Wherein intersection signal control module includes knowing module 1, read module 2, data storage module 3 and signal control module 4.
Vehicle priority pass method in the present invention is particularly suitable for the operation management of public transit vehicle, public transit vehicle can be made in the case where needs are preferentially passed through, obtain required right-of-way, but the method for the present invention is not limited to the priority pass of public transit vehicle, also being adapted for other needs the vehicle of priority pass, such as ambulance vehicles etc., it is only necessary to electronic tag is installed on the vehicle for need right-of-way, it is possible to by recognizing that electronic tag is obtained with right-of-way.
The priority pass embodiment of the method for bus is below enumerated, but be not restricted to that the present embodiment, a kind of public transit vehicle priority pass method, as shown in figure 1, comprising the following steps：
Step S1：Receive the RFID information on public transit vehicle and be identified, RFID is arranged on the inner side of the front and rear glass of public transit vehicle first, that is RFID is installed on public transit vehicle first, the information such as license number, circuit, priority level, vehicle-mounted number for recording public transit vehicle, RFID has LED display lamps, and instruction can be flashed after being detected into detection zone.The information of the RFID on public transit vehicle is received by RFID card reader, RFID card reader can carry out signal transmission between electronic tag, information according to receiving judges the priority pass grade of the public transit vehicle, in the section of public transit vehicle traveling apart from 100 meters of stop line place left and right installation RFID card reader, RFID card reader has bilateral antenna, one sensing stop line, one sensing public transit vehicle is sailed and comes direction, regulation reader range causes the antenna range of receiving for pointing to stop line to stop line, crossing is typically current with four-way under normal conditions, therefore need that four sets of rfid interrogators are installed a four direction intersections, the public transit vehicle of different directions is judged respectively, the particular location of public transit vehicle is judged by the signal attenuation of electronic tag；RFID card reader sends radiofrequency signal in the present invention, so as to start the emitter in the chip of electronic tag 7, the electronic code and identification information that electronic tag 7 is write are transmitted into RFID card reader, it is achieved thereby that RFID card reader receives electronic labeling information.
Step S2；The information of identification is sent to traffic light controller；The information of identification is sent initially to RFID data concentrator, one RFID data concentrator is installed at the intersection and radio communication is realized with four RFID card readers on crossing, by four card reader data summarizations to together, traffic light controller is connected to by signal adapter again, specific is when the public transit vehicle for being equipped with electronic tag is entered into the range of RFID card reader, RFID card reader reads label information of vehicles, and judge the travel direction and particular location of vehicle, these information are wirelessly sent to the RFID data concentrator at crossing.After concentrator is by each card reader data summarization, traffic light controller is sent to.
Step S3：According to the information for recognizing for public transit vehicle provides green light priority pass, when the electronic tag of public transit vehicle enters in the range of RFID card reader, the LED on electronic tag can point out vehicle to come into RFID card reader scope and be read into traffic light controller；After public transit vehicle override requests are processed, LED can point out to have obtained preferential.LED shows that whether normal enable to driver to be apparent from system works, if obtain preferential.
Step S4：The priority pass of the public transit vehicle terminates after the label on public transit vehicle leaves identification range；That is after public transit vehicle obtains right-of-way, and after the electronic tag on public transit vehicle leaves RFID card reader identification range, confirm that the priority pass of public transit vehicle terminates, result after identification is sent to RFID data concentrator by RFID card reader, RFID data concentrator transmits data to traffic light controller by signal adapter again, traffic light controller is according to the information for receiving and makes the public transit vehicle priority pass and terminates, control traffic lights terminate priority pass from green to red.
It is as shown in Figure 3 with the public transport delay correction data of conventional sensing control using the method for the present invention, and tested and contrasted with the conventional single-point sensing Controlling model based on Coil Detector, Different Traffic Flows amount is chosen in text (with 200veh/h to be spaced between 200~1 800veh/h), saturation degree O.1 to 0.9 is corresponded to respectively, flow covers the vehicle flowrate situation of low saturation, middle saturation degree and high saturation, to ensure the integrality and reliability of experiment.Here with the minimum object function of intersection total delay, the Efficiency Comparison of the public transit vehicle drawn after two kinds of model optimizations.
As can be seen from Figure 3 conventional sensing control is contrasted, by boot policy, the average traffic delay of public transit vehicle integrally improves significantly, when traffic flow is in low saturation state, the range of decrease of public transport delay is obvious, about reduces by 55% delay, with the increase of saturation degree, public transport delay reduction amplitude is relatively small, but reduces amplitude still more than 30%, is effectively improved green time utilization rate.
Another side of the invention, a kind of vehicle priority system is provided, as shown in Figure 2, the system includes mark module 1, read module 2, data storage module 3 and signal control module 4, the read module 2 is connected with the mark module 1 and data storage module 3 respectively, and the signal control module 4 is connected with the data storage module 3 and mark module 1 respectively；
The mark module 1 includes label, and the label is located at the inner side of the front and rear glass of vehicle, license number, circuit, priority level and vehicle-mounted number for registration of vehicle；
The read module 2 is used to receive the information of label and be identified；
The data storage module 3 receives the information of read module 2 and is sent to signal control module 4；
The signal control module 4 is according to the information for receiving for vehicle provides green light priority pass.
Also include converter block 5 in the system of the present invention, converter block 5 includes signal adapter 6, and the signal adapter 6 is used for the data is activation of data storage module 3 to signal control module 4.Mark module 1 is arranged on vehicle in system of the invention, license number, circuit, priority level and vehicle-mounted number for registration of vehicle；Read module 2 is arranged on crossing, for receiving the information of mark module 1 and being identified, and the information transmission for recognizing to data storage module 3, data storage module 3 receives the information of read module 2 and is sent to signal control module 4, and signal control module 4 is according to the information for receiving for vehicle provides green light priority pass；It is achieved thereby that can be interacted with traffic light controller to the label multiple bearing of vehicle to the remote read-write of vahicles label, it is achieved thereby that become more meticulous, targetedly vehicle preferentially manage；Specifically by vehicle carried electronic label, the information such as identity, position, the override requests of vehicle can effectively, be accurately recognized, by radio communication mode, be wirelessly transmitted to traffic light controller, be vehicle customization Priority Service.Change original wagon detector None- identified vehicle and circuit, it is impossible to distinguish the shortcoming of public vehicles and public transit vehicle.
In an optional case study on implementation of the invention, label is 2.4GRFID readable-writable electronic labels 7, electronic tag 7 is provided with LED light, the electronic code of identification vehicle is provided with electronic tag 7, when to be identified to vehicle, the radiofrequency signal that the read module 2 being connected with system sends starts the emitter in the chip of electronic tag 7, the electronic code and identification information that electronic tag 7 is write are transmitted into read module 2, read module 2 can read-out mark vehicle electronic code.Be transferred to this electronic code in system simultaneously by read module 2, according to the control program of default, to target vehicle implementing monitoring and management.
In an optional case study on implementation of the invention, read module 2 is RFID card reader, the data storage module 3 is that RFID reads concentrating equipment, the signal control module 4 is traffic light controller, the simultaneously information of reading electronic labels 7 is recognized by RFID card reader and RFID is delivered to and reads concentrating equipment, RFID reads concentrating equipment again by converter block 5 information transmission to traffic light controller, traffic lights are controlled by traffic light controller again, it is achieved thereby that the system is to target vehicle implementing monitoring and management, and can be according to the information of the electronic tag on vehicle, realize the priority pass for needing priority pass vehicle.
A kind of vehicle priority pass method of the principle of the invention, comprises the following steps：Receive the label information on vehicle and be identified；The information of identification is sent to traffic light controller；Traffic light controller is according to the information for recognizing for vehicle provides green light priority pass；The priority pass of the vehicle terminates after the label on vehicle leaves identification range, can be to the remote read-write of vahicles label, the label multiple bearing of vehicle can be interacted with traffic light controller, it is achieved thereby that become more meticulous, targetedly vehicle preferentially manage；Specifically by vehicle carried electronic label, the information such as identity, position, the override requests of vehicle can effectively, be accurately recognized, by radio communication mode, be wirelessly transmitted to traffic light controller, be vehicle customization Priority Service.Change original wagon detector None- identified vehicle and circuit, it is impossible to distinguish the shortcoming of public vehicles and public transit vehicle.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the present invention is not limited to the above specific embodiments, wherein the equipment and structure that do not describe in detail to the greatest extent are construed as being practiced with the common mode in this area；Any those of ordinary skill in the art, in the case where technical solution of the present invention ambit is not departed from, many possible variations and modification are all made to technical solution of the present invention using the methods and techniques content of the disclosure above, or the equivalence enforcement case of equivalent variations is revised as, this has no effect on substance of the invention.Therefore, every content without departing from technical solution of the present invention, according to technical spirit of the invention to any simple modification, equivalent variation and modification made for any of the above embodiments, still falls within the range of technical solution of the present invention protection.
Claims (10)
1. a kind of vehicle priority pass method, it is characterised in that the described method comprises the following steps：
Receive the label information on vehicle and be identified；
The information of identification is sent to traffic light controller；
Traffic light controller is according to the information for recognizing for vehicle provides green light priority pass；
The priority pass of the vehicle terminates after the label on vehicle leaves identification range.
2. a kind of vehicle priority pass method as claimed in claim 1, it is characterised in that methods described
Also include judging according to the signal attenuation for receiving label on vehicle the particular location of vehicle.
3. a kind of vehicle priority pass method as claimed in claim 1, it is characterised in that methods described
Also include being sent to the information of identification in reading concentrating equipment, the reading concentrating equipment is turned by signal
Be sent to the information of identification in traffic light controller by parallel operation.
4. a kind of vehicle priority pass method as claimed in claim 1, it is characterised in that methods described
It is additionally included in and LED light is equipped with vehicle tag, the LED light receives Traffic signal control
The priority signal of device transmission is simultaneously shown that driver judges whether to obtain preferential according to the information of display
Right-of-way.
5. a kind of vehicle priority pass method as described in claim 1-4 is any, it is characterised in that
The label is 2.4GRFID readable-writable electronic labels, and electronic code is provided with the electronic tag.
6. a kind of vehicle priority pass method as claimed in claim 5, it is characterised in that by RFID
Card reader receives the label information on the vehicle and is identified, and the RFID card reader is believed by antenna
Number decay judges the particular location of vehicle.
7. a kind of vehicle priority pass method as described in right wants 6, it is characterised in that it is described will identification
Information be sent in RFID data concentrator, the RFID data concentrator and the RFID card reader
It is connected, the RFID data concentrator is connected by signal adapter with the traffic light controller.
8. a kind of vehicle priority system, it is characterised in that including mark module, read module, number
According to storage module and signal control module, the read module respectively with the mark module and data storage
Module is connected, and the signal control module is connected with the data storage module and mark module respectively；
The mark module includes label, and the label is located at the inner side of the front and rear glass of vehicle, for remembering
Record license number, circuit, priority level and the vehicle-mounted number of vehicle；
The read module is used to receive the information of label and be identified；
The data storage module receives the information of read module and is sent to signal control module；
The signal control module is according to the information for receiving for vehicle provides green light priority pass.
9. a kind of vehicle priority system as claimed in claim 8, it is characterised in that the label
It is 2.4GRFID readable-writable electronic labels, the electronic tag is provided with LED light.
10. a kind of vehicle priority system as described in claim 8-9 is any, it is characterised in that
The read module is RFID card reader, and the data storage module is that RFID reads concentrating equipment, institute
Signal control module is stated for traffic light controller.
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| CN108335499A (en) * | 2017-12-15 | 2018-07-27 | 上海电科智能系统股份有限公司 | A kind of bus signals mode of priority of dynamic priority grade |
| CN108961796A (en) * | 2018-08-17 | 2018-12-07 | 江苏师范大学 | A kind of traffic lights speech prompting system based on radio-frequency technique |
| CN109727461A (en) * | 2017-10-31 | 2019-05-07 | 余国桢 | Whistle control system for emergency vehicle |
| CN110517504A (en) * | 2019-09-27 | 2019-11-29 | 连云港杰瑞电子有限公司 | The noninductive preferential signal control method of target vehicle based on Car license recognition |
| CN111627233A (en) * | 2020-06-09 | 2020-09-04 | 上海商汤智能科技有限公司 | Method and device for coordinating passing route for vehicle |
| CN112967513A (en) * | 2021-03-30 | 2021-06-15 | 华录智达科技股份有限公司 | Bus rapid transit priority passing control system |
| CN113487868A (en) * | 2021-07-08 | 2021-10-08 | 同济大学 | Bus dynamic speed guidance-standing station control-signal priority cooperative control method |
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