CN210155833U - Bus priority traffic signal control system based on bus-road cooperation technology - Google Patents
Bus priority traffic signal control system based on bus-road cooperation technology Download PDFInfo
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- CN210155833U CN210155833U CN201921351541.3U CN201921351541U CN210155833U CN 210155833 U CN210155833 U CN 210155833U CN 201921351541 U CN201921351541 U CN 201921351541U CN 210155833 U CN210155833 U CN 210155833U
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Abstract
The utility model discloses a bus priority traffic signal control system based on the bus-road cooperation technology, which comprises a vehicle-mounted unit, a road side unit, a traffic signal control platform, a traffic signal controller and a 4G control platform; the vehicle-mounted unit collects the GPS position information of the bus in real time; the roadside unit senses a passing vehicle, establishes a communication link with the vehicle-mounted unit through microwaves, analyzes the vehicle type and the bus speed, and reports the analysis result to the traffic signal control platform; the traffic signal control platform analyzes the reported data, generates signal control of bus priority and a vehicle speed guide strategy and sends the signal control and the vehicle speed guide strategy to the front-end traffic signal controller and the 4G control platform; and running traffic signal control and vehicle speed guide strategies according to conditions to realize the linkage command of bus priority signal control and vehicle speed guide. The utility model discloses reducible bus stops the delay time at crossing, increases substantially bus's current efficiency, practices thrift masses' trip time.
Description
Technical Field
The utility model relates to a traffic control technical field, specific theory relates to a priority traffic signal control system of public transit based on bus or train route is technique in coordination.
Background
With the development of cities, urban roads are increasingly crowded, public transportation becomes an important transportation tool for people to go out, and therefore priority control technology of public transportation is gradually valued for people.
However, the prior bus priority control does not relate to a bus-road coordination technology, and generally adopts a mode of arranging a feedback line or a zigzag bus priority entrance lane on an entrance lane and bus priority intelligent signal control to realize bus priority at an intersection so as to reduce delay time of a vehicle at the intersection. These all belong to the preferred static management scheme of public transit, because of not having the operation situation of real-time supervision bus, public transit priority control often can have the deviation with actual operation effect, may cause the traffic confusion even.
SUMMERY OF THE UTILITY MODEL
To the deficiency among the prior art, the to-be-solved technical problem of the utility model lies in providing a public transit priority traffic signal control system based on bus or train route is technique in coordination.
In order to solve the technical problem, the utility model discloses a following scheme realizes: a bus priority traffic signal control system based on a vehicle-road cooperation technology is characterized in that: the system comprises a vehicle-mounted unit, a road side unit, a traffic signal control platform, a traffic signal controller and a 4G control platform;
the vehicle-mounted unit is arranged on the bus and used for acquiring GPS position information of the bus;
the roadside unit is arranged at the roadside and is in microwave communication with the vehicle-mounted unit, and is used for acquiring vehicle type information, analyzing the speed of the bus and transmitting the vehicle type information and the speed information to the traffic signal control platform;
the traffic signal control platform is used for analyzing the uploaded data of the road side unit and generating a control signal and a guide signal of bus priority;
the traffic signal controller is used for receiving a control signal of the traffic signal control platform to control a traffic signal lamp;
the 4G control platform is used for receiving the vehicle speed guide signal of the traffic signal control platform, and the vehicle-mounted unit automatically acquires the vehicle speed guide signal and then broadcasts the vehicle speed guide signal through the audio module.
Furthermore, the vehicle-mounted unit adopts a differential GPS technology to realize accurate positioning; the road side unit and the traffic signal control platform are connected through an optical fiber network; the traffic signal control platform is connected with the traffic signal controller and the 4G control platform through RS 232.
Further, the road side unit comprises a microwave communication module and a data processing module, and is arranged at a position 500-1000 m away from the stop line of the intersection.
Furthermore, a data receiving module and a data processing module are arranged in the traffic signal control platform, and a data receiving module and a control module are arranged in the traffic signal controller.
Further, the vehicle-mounted unit automatically acquires a vehicle speed guiding signal of the 4G control platform in a message bus mode based on a data subscription mode.
Furthermore, the control system also comprises a vehicle-mounted industrial personal computer which is connected with the traffic signal control platform through a network, and a data receiving module and a display module are arranged in the industrial personal computer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses add elements such as mobile unit and road side unit, utilize the microwave communication link between mobile unit's accurate positioning function, mobile unit and the road side unit, realized the collaborative work of bus "car" and "way" side equipment.
2. The utility model discloses traffic signal control platform generates control signal and speed of a motor vehicle guide signal through the speed signal and the traffic signal lamp signal that acquire the bus after handling, and the speed of a motor vehicle guide information that generates reminds the bus driver with voice broadcast's mode through the audio module of on-board unit, and control signal passes through the time of controlling the traffic light, through linkage effect between them, has increased substantially driver's the drive experience and the current efficiency of bus.
Drawings
Fig. 1 is a block diagram of the control system of the present invention;
in the drawings: 1. the system comprises a vehicle-mounted unit, a road side unit, a traffic signal control platform, a traffic signal controller, a 5G control platform, a 4G control platform, a traffic signal lamp, a 7 audio module, an 8 vehicle-mounted industrial personal computer.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the scope of the present invention more clearly defined.
Referring to the attached drawing 1, the utility model discloses a bus priority traffic signal control system based on bus-road cooperation technology, including on-board unit 1, roadside unit 2, traffic signal control platform 3, traffic signal controller 4, 4G control platform 5; the road side unit 2 and the traffic signal control platform 3 are connected through an optical fiber network; the traffic signal control platform 3 is connected with the traffic signal controller 4 and the 4G control platform 5 through RS 232.
The vehicle-mounted unit 1 is mounted on a bus and used for collecting GPS position information of the bus, the vehicle-mounted unit 1 adopts a differential technology (DGPS) to realize accurate positioning of GPS coordinates, the obstruction of high-rise obstacles can be overcome, the positioning error is reduced to about 1 meter, the positioning speed is improved, and dynamic monitoring, tracking and real-time analysis of the whole process of bus operation are realized.
The roadside unit 2 comprises a microwave communication module and a data processing module, the roadside unit 2 of the preferred embodiment of the utility model is arranged at a position 1000m away from a stop line at an intersection, is in microwave communication with the vehicle-mounted unit 1, and is used for acquiring vehicle type information, analyzing the speed of a bus and transmitting the vehicle type information and the speed information to the traffic signal control platform 3; and converting the coordinate difference value of the GPS positioning data of the vehicle-mounted unit 1 twice into a distance, and dividing the distance by the time difference delta t to obtain the current bus speed.
A data receiving module and a data processing module are arranged in the traffic signal control platform 3, and can analyze the uploaded data of the road side unit 2 and generate a bus priority control signal and a bus speed guide signal scheme; and can also receive the turn-off and turn-on conditions of the traffic signal lamp 6 (red light and green light), including whether the traffic signal lamp is turned off or not, turn-off time and the like.
The traffic signal controller 4 is internally provided with a data receiving module and a control module, and is used for receiving the control signal of the traffic signal control platform 3 to control the traffic signal lamp 6.
The 4G control platform 5 is used for receiving the vehicle speed guide signal of the traffic signal control platform 3, the vehicle-mounted unit 1 automatically acquires the vehicle speed guide signal of the 4G control platform 5 in a message bus mode based on a data subscription mode, and then the vehicle speed guide signal is broadcasted through the audio module 7 to remind a driver.
In order to enable the bus to directly pass through (namely, no parking delay) or reduce the parking delay without waiting when the bus reaches a stop line at an intersection, the traffic signal control platform 3 makes a bus priority control scheme and a bus speed guide scheme according to the conditions of the bus speed and traffic lights: 1. assuming that the current light color is red when the bus arrives at the roadside unit 2, a red light early-break strategy needs to be adopted for the signal light, and the time value of the red light early-break can be a fixed value, such as 5 seconds; or may be a calculated value. 2. Assuming that the current light color is a green light, obtaining a critical speed Vc = Deltad/Gs just passing through the intersection according to the remaining time Gs of the green light and the distance Deltad (the utility model discloses the preferred 1000 m) of the bus from the intersection, and if Vc is less than or equal to Vmin, the bus can pass through the intersection constantly; if Vc belongs to [ Vmin, Vmax ], the vehicle speed guidance (reminding a driver that the driving speed must exceed Vc) is directly implemented on the bus through the vehicle-mounted unit 1 without changing the color of the light; and if Vc is larger than or equal to Vmax, the bus cannot pass through the residual green light time, a green light extension strategy needs to be adopted for the signal lamp, and similarly, the time value of the green light extension can be a fixed value or a calculated value.
Vmin and Vmax are the minimum speed and the maximum speed of the bus passing through the intersection, respectively, obtained by analyzing the big data.
The utility model discloses a control system still includes on-vehicle industrial computer 8 (passing through 4G internet access with traffic signal control platform 3), is equipped with data receiving module and display module in the on-vehicle industrial computer 8, and data receiving module is used for synchronous reception speed of a motor vehicle guide signal and traffic light signal to show through display module, for example, when the bus reachs trackside unit 2, current light is the red light, and the countdown that the interface display red light broke off further promotes driver's driving experience.
It should be noted that the roadside units 2 in each direction at the intersection scan the bus signals in the area, and implement bus priority signal control on the buses which enter firstly or perform priority control on the directions with a larger number by taking the number of buses as a reference; the bus priority scheme can be included in a multi-time-period operation scheme, the bus priority scheme is operated at the peak of morning and evening (such as 7:00-9:00 and 17:00-19:00), and a preset scheme is adopted at the rest time periods.
To sum up, the utility model discloses a control system has reduced the stop delay time of bus at crossing through the linkage effect to traffic signal control and speed of a motor vehicle guide, has increased substantially bus's current efficiency, has practiced thrift masses' trip time.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (6)
1. A bus priority traffic signal control system based on a vehicle-road cooperation technology is characterized in that: the system comprises a vehicle-mounted unit (1), a road side unit (2), a traffic signal control platform (3), a traffic signal controller (4) and a 4G control platform (5);
the vehicle-mounted unit (1) is arranged on a bus and used for collecting GPS position information of the bus;
the roadside unit (2) is arranged at the roadside and is in microwave communication with the vehicle-mounted unit (1) for acquiring vehicle type information, analyzing the speed of the bus and transmitting the vehicle type information and the speed information to the traffic signal control platform (3);
the traffic signal control platform (3) is used for analyzing the uploaded data of the road side unit (2) and generating a control signal and a vehicle speed guide signal of bus priority;
the traffic signal controller (4) is used for receiving a control signal of the traffic signal control platform (3) to control a traffic signal lamp (6);
the 4G control platform (5) is used for receiving vehicle speed guide signals of the traffic signal control platform (3), and the vehicle-mounted unit (1) automatically acquires the vehicle speed guide signals and then broadcasts the vehicle speed guide signals through the audio module (7).
2. The bus priority traffic signal control system based on the bus-road coordination technology as claimed in claim 1, wherein: the vehicle-mounted unit (1) adopts a differential GPS technology to realize accurate positioning; the road side unit (2) and the traffic signal control platform (3) are connected through an optical fiber network; the traffic signal control platform (3) is connected with the traffic signal controller (4) and the 4G control platform (5) through RS 232.
3. The bus priority traffic signal control system based on the bus-road coordination technology as claimed in claim 1, wherein: the road side unit (2) comprises a microwave communication module and a data processing module, and is arranged at a position 500-1000 m away from a stop line at an intersection.
4. The bus priority traffic signal control system based on the bus-road coordination technology as claimed in claim 1, wherein: the traffic signal control platform (3) is internally provided with a data receiving module and a data processing module, and the traffic signal controller (4) is internally provided with a data receiving module and a control module.
5. The bus priority traffic signal control system based on the bus-road coordination technology as claimed in claim 1, wherein: the vehicle-mounted unit (1) automatically acquires a vehicle speed guiding signal of the 4G control platform (5) in a message bus mode based on a data subscription mode.
6. The bus priority traffic signal control system based on the bus-road coordination technology as claimed in claim 1, wherein: the control system further comprises a vehicle-mounted industrial personal computer (8) in network connection with the traffic signal control platform (3), and a data receiving module and a display module are arranged in the vehicle-mounted industrial personal computer (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921351541.3U CN210155833U (en) | 2019-08-20 | 2019-08-20 | Bus priority traffic signal control system based on bus-road cooperation technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921351541.3U CN210155833U (en) | 2019-08-20 | 2019-08-20 | Bus priority traffic signal control system based on bus-road cooperation technology |
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| CN210155833U true CN210155833U (en) | 2020-03-17 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540219A (en) * | 2020-05-06 | 2020-08-14 | 亚哲科技股份有限公司 | Bidirectional bus signal priority coordination method based on artificial intelligence bus-road coordination |
| CN111785048A (en) * | 2020-05-29 | 2020-10-16 | 北京瑞华赢科技发展有限公司 | Public transport priority processing system and method based on human-vehicle-road cooperation |
| CN112967510A (en) * | 2021-02-26 | 2021-06-15 | 安徽达尔智能控制系统股份有限公司 | Bus intersection traffic control method and system based on green wave coordination |
| CN113066299A (en) * | 2021-03-25 | 2021-07-02 | 上海智能新能源汽车科创功能平台有限公司 | Passenger transport digital traffic system based on vehicle-road-cloud integration |
| CN113096442A (en) * | 2021-03-29 | 2021-07-09 | 上海智能新能源汽车科创功能平台有限公司 | Intelligent bus control system based on bus road cloud cooperation |
| CN113888902A (en) * | 2021-09-30 | 2022-01-04 | 安徽工业大学 | V2X technology-based loose coupling model for intersection dynamic bus priority feedback control and forward collision early warning |
-
2019
- 2019-08-20 CN CN201921351541.3U patent/CN210155833U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540219A (en) * | 2020-05-06 | 2020-08-14 | 亚哲科技股份有限公司 | Bidirectional bus signal priority coordination method based on artificial intelligence bus-road coordination |
| CN111540219B (en) * | 2020-05-06 | 2021-08-06 | 亚哲科技股份有限公司 | Bidirectional bus signal priority coordination method based on artificial intelligence bus-road coordination |
| CN111785048A (en) * | 2020-05-29 | 2020-10-16 | 北京瑞华赢科技发展有限公司 | Public transport priority processing system and method based on human-vehicle-road cooperation |
| CN112967510A (en) * | 2021-02-26 | 2021-06-15 | 安徽达尔智能控制系统股份有限公司 | Bus intersection traffic control method and system based on green wave coordination |
| CN113066299A (en) * | 2021-03-25 | 2021-07-02 | 上海智能新能源汽车科创功能平台有限公司 | Passenger transport digital traffic system based on vehicle-road-cloud integration |
| CN113096442A (en) * | 2021-03-29 | 2021-07-09 | 上海智能新能源汽车科创功能平台有限公司 | Intelligent bus control system based on bus road cloud cooperation |
| CN113888902A (en) * | 2021-09-30 | 2022-01-04 | 安徽工业大学 | V2X technology-based loose coupling model for intersection dynamic bus priority feedback control and forward collision early warning |
| CN113888902B (en) * | 2021-09-30 | 2022-08-23 | 安徽工业大学 | V2X technology-based loose coupling model for intersection dynamic bus priority feedback control and forward collision early warning |
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