CN111182064A - Special vehicle priority passing method based on vehicle road cloud cooperation - Google Patents
Special vehicle priority passing method based on vehicle road cloud cooperation Download PDFInfo
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- CN111182064A CN111182064A CN201911404097.1A CN201911404097A CN111182064A CN 111182064 A CN111182064 A CN 111182064A CN 201911404097 A CN201911404097 A CN 201911404097A CN 111182064 A CN111182064 A CN 111182064A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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Abstract
The invention discloses a special vehicle priority passing method based on vehicle road cloud cooperation, which comprises the following steps: firstly, installing vehicle-mounted equipment on a special vehicle, connecting the vehicle-mounted equipment with roadside equipment through a V2X communication technology, connecting the vehicle-mounted equipment with user equipment through a wifi communication technology, and connecting the vehicle-mounted equipment with a cloud control platform through a 4G/5G communication technology; road side equipment, a signal controller and traffic lights are installed at each traffic intersection, the road side equipment is connected with the signal controller through optical fibers, and the signal controller is electrically connected with the traffic lights through electric wires; and finally, the traffic control platform signal control system is connected with the signal controllers of the intersections through the optical fibers. The invention analyzes the whole road network information, uniformly controls the traffic light states of all intersections, preferentially arranges special vehicles to pass and reduces potential safety hazards.
Description
Technical Field
The invention discloses a signal control technology and an urban special vehicle priority passing technology, and particularly relates to a special vehicle priority passing method based on vehicle road cloud cooperation.
Background
At the present stage, the huge urban traffic demand of China forms a sharp contradiction with the traffic system and the traffic structure which are relatively backward, and the problems of urban traffic jam and the associated environmental pollution, safety and the like have attracted wide attention of the whole society; in the peak time of commuting trip, long-time and normal traffic jam restricts the rapid development of urban economy on a plurality of important traffic nodes; the public transportation system has the advantages of large carrying capacity, high transportation efficiency, low energy consumption, less relative pollution, low transportation cost and the like, so that the development of public transportation is a preferred way for relieving urban transportation problems; in addition, ambulances, fire trucks and other vehicles racing with time should provide services for passing priority, in recent years, traffic experts and scholars propose ideas for developing public transportation and special vehicles to run preferentially to relieve increasingly severe traffic problems, many large and medium-sized cities correspondingly propose policies and measures for preferentially developing and establishing advanced transportation systems, and some advanced technologies, devices and methods represented by bus signal priority and right-of-way priority are already put into daily bus operation and management.
However, the prior art still has some disadvantages, such as publication (publication) No. CN110085039A, a traffic signal coordination system and method, and the present application provides a traffic signal coordination system and method, including a user terminal, a vehicle-mounted device and a road side device, where the user terminal establishes a communication connection with the vehicle-mounted device through a bluetooth module; the vehicle-mounted device establishes communication connection with the road side device through the short-range communication module; the road side device is in communication connection with the annunciator through a communication interface, and is connected with three live wires of the traffic light controlled by the annunciator through conducting wires; the method has the advantages that the intersection traffic signal information is obtained and displayed through the user terminal, so that the condition that a vehicle driver cannot accurately obtain the intersection traffic signal information due to weather and road condition factors is reduced; meanwhile, through intersection traffic signal coordination control, the intersection traffic signals of the driving route of the special service vehicle are inquired and coordinately controlled, so that the rapid preferential passing of the special service vehicle is realized, and the passing time of the special service vehicle is reduced; according to the scheme, the state of a signal lamp needs to be manually inquired, the switching of traffic light signals is manually triggered, each vehicle can control the traffic light signals of the intersection through interface control, and potential safety hazards exist; in addition, the signal can only be preferentially passed by aiming at a single intersection, the road side device and the signal machine of each passing intersection need to be jointly adjusted, and the workload is huge; if a plurality of vehicles need to pass preferentially at the intersection, each vehicle sends out a control signal, which may cause signal control disorder; the traffic flow of an area and even an entire urban area cannot be acquired without communicating with the traffic management platform data, and the prior traffic has limitation.
Disclosure of Invention
The invention aims to: the special vehicle priority passing method based on the vehicle-road cloud cooperation overcomes the problems, and enables the bus and the special vehicle to pass through the traffic light intersection preferentially in the driving process.
The technical scheme adopted by the invention is as follows: a special vehicle priority passing method based on vehicle road cloud cooperation specifically comprises the following steps:
s1, firstly, installing vehicle-mounted equipment on the special vehicle, connecting the vehicle-mounted equipment with roadside equipment through a V2X communication technology, establishing connection with user equipment through a wifi communication technology, and connecting with a cloud control platform through a 4G/5G communication technology;
s2, arranging road side equipment, a signal controller and traffic lights at each traffic intersection, wherein the road side equipment and the signal controller are in signal connection through optical fibers, and the signal controller and the traffic lights are electrically connected through electric wires;
s3, then establishing signal connection between the roadside equipment of each intersection and the cloud control platform through optical fibers, establishing information connection between the cloud control platform and the traffic management platform signal control system through the optical fibers, and finally establishing signal connection between the traffic management platform signal control system and the signal control machines of each intersection through the optical fibers.
The working principle of the invention is as follows: the method comprises the steps that information such as traffic flow, traffic conditions and the like of a current intersection is transmitted to a cloud control platform through roadside equipment; the cloud control platform is used for counting traffic flow information of each intersection, receiving special vehicle position, course angle, speed and route information, and then sending the special vehicle information and the intersection traffic state information to the traffic management platform signal control system; the traffic control platform signal control system issues a signal coordination command to a signal controller of each intersection according to the vehicle position, the course angle, the speed, the route information and the intersection traffic state information through a signal priority algorithm, and the signal controller controls the traffic light state of each intersection so as to realize the priority traffic of all intersections on the whole traffic route of the special vehicle.
Further, the vehicle-mounted equipment is installed on a special vehicle and used for transmitting the speed, the course angle and the position information of the vehicle to the cloud control platform and sending the current traffic light state information fed back by the cloud control platform to the user equipment for displaying.
Further, the user equipment is display equipment and is used for displaying intersection traffic light information transmitted by the vehicle-mounted equipment.
Further, the road side equipment is used for transmitting the traffic flow and the traffic condition information of the current intersection to the cloud control platform, reading the traffic light state information of the current intersection and sending the information to the vehicle-mounted device.
Further, the cloud control platform is used for counting traffic flow information of each intersection and sending the special vehicle information and the intersection traffic state information to the traffic management platform signal control system.
Further, the traffic control platform signal control system issues a signal coordination command to a signal controller of each intersection through a signal priority algorithm according to the vehicle information and the intersection traffic state information, so as to realize the signal priority control of a plurality of continuous intersections.
Furthermore, the signal control machine controls the traffic light state of each intersection according to the signal coordination instruction, and the priority passing of all intersections on the whole passing route of the special vehicle is realized.
Furthermore, the road side equipment, the signal controller and the traffic lights are arranged at the intersection in a sleeved mode, and the signal controller controls the corresponding traffic lights.
Further, the vehicle-mounted equipment is matched with user equipment for use.
Further, the signal priority algorithm follows three principles:
1. when the release direction is green light and the remaining green light time is enough for the bus or the special vehicle to normally pass through the current intersection, the signal machine is not controlled;
2. when the release direction is green light at the moment, but the residual green light time is not enough to enable the bus or the special vehicle to pass through the intersection without stopping, the signaler performs green light extension control, wherein the green light extension time is the time required by the bus to reach a stop line at the current speed-residual green light time;
3. when the release direction is the red light this moment, the semaphore will do the early control of red light, compresses the green light time of other release directions promptly, and the maximum time that can compress is other release directions total green light time-total minimum green time.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the traffic light information is read in real time by the road side equipment, when a vehicle provided with the vehicle-mounted equipment runs to a communication distance range with the road side equipment V2X, the intersection traffic light information can be received, and the vehicle-mounted terminal sends the intersection traffic light information to the user equipment to display the traffic light real-time information, so that the user can accurately acquire the traffic light state information of each intersection in real time.
2. According to the invention, all traffic flow and intersection traffic state information are gathered through the cloud control platform, and basic data are preferentially provided for the signal control platform to make signals through big data analysis;
3. all control signals are uniformly controlled by the traffic control signal control platform through a signal priority algorithm, so that potential safety hazards are reduced;
4. the invention can realize the preferential passage of special vehicles and public transport vehicles in the whole road network and even the whole urban area, and enlarges the application range of the preferential control of the special vehicles and the public transport vehicles.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a block flow diagram of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A special vehicle priority passing method based on vehicle road cloud cooperation comprises the following specific steps:
s1, firstly, installing vehicle-mounted equipment on the special vehicle, connecting the vehicle-mounted equipment with roadside equipment through a V2X communication technology, establishing connection with user equipment through a wifi communication technology, and connecting with a cloud control platform through a 4G/5G communication technology;
s2, arranging road side equipment, a signal controller and traffic lights at each traffic intersection, wherein the road side equipment and the signal controller are in signal connection through optical fibers, and the signal controller and the traffic lights are electrically connected through electric wires;
s3, establishing signal connection between the roadside equipment of each intersection and the cloud control platform through optical fibers, establishing information connection between the cloud control platform and the traffic management platform signal control system through the optical fibers, and finally establishing signal connection between the traffic management platform signal control system and the signal controllers of the intersections through the optical fibers.
The working principle of the invention is as follows: the method comprises the steps that information such as traffic flow, traffic conditions and the like of a current intersection is transmitted to a cloud control platform through roadside equipment; the cloud control platform is used for counting traffic flow information of each intersection, receiving special vehicle position, course angle, speed and route information, and then sending the special vehicle information and the intersection traffic state information to the traffic management platform signal control system; the traffic control platform signal control system issues a signal coordination command to a signal controller of each intersection according to the vehicle position, the course angle, the speed, the route information and the intersection traffic state information through a signal priority algorithm, and the signal controller controls the traffic light state of each intersection so as to realize the priority traffic of all intersections on the whole traffic route of the special vehicle.
Example 1
S1, firstly, vehicle-mounted equipment is mounted on an ambulance, a fire-fighting vehicle and a bus, the vehicle-mounted equipment is connected with roadside equipment through a V2X communication technology, is connected with user equipment through a wifi communication technology, and is connected with a cloud control platform through a 4G/5G communication technology, when the ambulance and the fire-fighting vehicle execute a task, a priority passing request is sent to the cloud control platform and the roadside equipment, the roadside equipment feeds back real-time traffic flow and passing conditions to the vehicle-mounted equipment, and the vehicle-mounted equipment visually displays the real-time traffic flow and the passing conditions through the user equipment;
s2, arranging road side equipment, a signal controller and traffic lights at each traffic intersection, wherein the road side equipment and the signal controller are in signal connection through optical fibers, and the signal controller and the traffic lights are electrically connected through electric wires;
s3, establishing signal connection between the roadside equipment of each intersection and the cloud control platform through optical fibers, establishing information connection between the cloud control platform and the traffic management platform signal control system through the optical fibers, and finally establishing signal connection between the traffic management platform signal control system and the signal control machines of the intersections through the optical fibers; the cloud control platform is used for counting traffic flow information of each intersection, receiving position, course angle, speed and route information of the ambulance, and then sending the information of the ambulance and the traffic state information of the intersection to the traffic management platform signal control system; the traffic control platform signal control system passes through a signal priority algorithm according to vehicle position, course angle, speed, route information and intersection traffic state information, and the signal priority algorithm follows the following three principles: 1. when the release direction is green light and the remaining green light time is enough for the bus or the special vehicle to normally pass through the current intersection, the signal machine is not controlled; 2. when the release direction is green light at the moment, but the residual green light time is not enough to enable the bus or the special vehicle to pass through the intersection without stopping, the signaler performs green light extension control, wherein the green light extension time is the time required by the bus to reach a stop line at the current speed-residual green light time; 3. when the release direction is the red light, the annunciator performs early red light break control, namely green light time in other release directions is compressed, and the maximum time capable of being compressed is total green light time-total minimum green time in other release directions; and issuing the signal coordination command to a signal controller of each intersection, wherein the signal controller controls the traffic light state of each intersection, and all intersections on the whole passing route of the special vehicle can pass preferentially.
Example 2
When the ambulance and the fire-fighting vehicle send out a priority traffic request, the traffic signal machine does not control when the traffic direction is green and the remaining green time is enough for the ambulance and the fire-fighting vehicle to normally pass through the current intersection; when the release direction is green light at the moment, but the residual green light time is not enough to enable the ambulance and the fire-fighting vehicle to pass through the intersection without stopping, the signaler performs green light extension control, wherein the green light extension time is the time required by the bus to reach a stop line at the current speed-the residual green light time; when the release direction is the red light, the annunciator performs early red light break control, namely green light time in other release directions is compressed, and the maximum time capable of being compressed is total green light time-total minimum green time in other release directions; the traffic control platform signal control system monitors the position, course angle, speed and route information of the ambulance and the fire-fighting vehicle and the intersection traffic state information in the whole process, and the traffic protection and protection navigation enables the ambulance and the fire-fighting vehicle to pass through a green light at one road; otherwise, the same procedure as in example 1 was repeated.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A special vehicle priority passing method based on vehicle road cloud cooperation is characterized by comprising the following steps:
s1, firstly, installing vehicle-mounted equipment on the special vehicle, connecting the vehicle-mounted equipment with roadside equipment through a V2X communication technology, establishing connection with user equipment through a wifi communication technology, and connecting with a cloud control platform through a 4G/5G communication technology;
s2, arranging road side equipment, a signal controller and traffic lights at each traffic intersection, wherein the road side equipment and the signal controller are in signal connection through optical fibers, and the signal controller and the traffic lights are electrically connected through electric wires;
s3, then establishing signal connection between the roadside equipment of each intersection and the cloud control platform through optical fibers, establishing information connection between the cloud control platform and the traffic management platform signal control system through the optical fibers, and finally establishing signal connection between the traffic management platform signal control system and the signal control machines of each intersection through the optical fibers.
2. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 1, characterized in that: the vehicle-mounted equipment is arranged on a special vehicle and used for transmitting the speed, the course angle and the position information of the vehicle to the cloud control platform and sending the current traffic light state information fed back by the cloud control platform to the user equipment for displaying.
3. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 1, characterized in that: the user equipment is display equipment and is used for displaying the intersection traffic signal lamp information transmitted by the vehicle-mounted equipment.
4. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 1, characterized in that: the road side equipment is used for transmitting the traffic flow and the traffic condition information of the current intersection to the cloud control platform, reading the traffic light state information of the current intersection and sending the information to the vehicle-mounted device.
5. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 1, characterized in that: the cloud control platform is used for counting traffic flow information of each intersection and sending special vehicle information and intersection traffic state information to the traffic management platform signal control system.
6. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 1, characterized in that: the traffic control platform signal control system issues a signal coordination command to a signal controller of each intersection through a signal priority algorithm according to vehicle information and intersection traffic state information, so that signal priority control of a plurality of continuous intersections is realized.
7. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 1, characterized in that: and the signal control machine controls the traffic light state of each intersection according to the signal coordination instruction, so that all intersections on the whole passing route of the special vehicle can pass preferentially.
8. The special vehicle priority passing method based on the vehicle road cloud coordination according to any one of claims 1 to 7, characterized in that: the road side equipment, the signal control machine and the traffic lights are arranged at the intersection in a sleeved mode, and the signal control machine controls the corresponding traffic lights.
9. The special vehicle priority passing method based on the vehicle road cloud coordination according to any one of claims 1 to 7, characterized in that: the vehicle-mounted equipment is matched with user equipment for use.
10. The special vehicle priority passing method based on vehicle road cloud coordination according to claim 6, characterized in that: the signal prioritization algorithm follows three principles:
1. when the release direction is green light and the remaining green light time is enough for the bus or the special vehicle to normally pass through the current intersection, the signal machine is not controlled;
2. when the release direction is green light at the moment, but the residual green light time is not enough to enable the bus or the special vehicle to pass through the intersection without stopping, the signaler performs green light extension control, wherein the green light extension time is the time required by the bus to reach a stop line at the current speed-residual green light time;
3. when the release direction is the red light this moment, the semaphore will do the early control of red light, compresses the green light time of other release directions promptly, and the maximum time that can compress is other release directions total green light time-total minimum green time.
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| CN111596673A (en) * | 2020-07-27 | 2020-08-28 | 江苏广宇科技产业发展有限公司 | Smart driving cloud auxiliary system based on 5G |
| 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 |
| CN112116812A (en) * | 2020-09-25 | 2020-12-22 | 安徽达尔智能控制系统股份有限公司 | Vehicle road cooperative control system based on V2X car networking technology |
| CN112562365A (en) * | 2020-11-20 | 2021-03-26 | 复旦大学 | Specific vehicle priority traffic control system based on high-precision positioning terminal |
| CN112581775A (en) * | 2020-12-08 | 2021-03-30 | 平安国际智慧城市科技股份有限公司 | Bus priority passing control method and system of signal lamp and storage medium |
| CN113034936A (en) * | 2021-03-12 | 2021-06-25 | 四川华控智能交通设施工程有限公司 | Guard route and special service route control system and control method thereof |
| CN113240919A (en) * | 2021-04-20 | 2021-08-10 | 中国汽车技术研究中心有限公司 | Emergency vehicle priority passing method based on Internet of vehicles |
| CN113920762A (en) * | 2021-10-08 | 2022-01-11 | 湖南湘江智能科技创新中心有限公司 | Control method for prior passage of emergency vehicles based on intelligent network environment |
| CN114120671A (en) * | 2021-12-15 | 2022-03-01 | 阿波罗智联(北京)科技有限公司 | Traffic signal lamp control method, device, equipment and storage medium |
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| CN114512007A (en) * | 2020-11-17 | 2022-05-17 | 长沙智能驾驶研究院有限公司 | Intersection passing coordination method and device |
| CN114582114A (en) * | 2022-02-18 | 2022-06-03 | 广州华生信息科技有限公司 | Fire-fighting vehicle priority passing system based on Internet of things, control method, computer-readable storage medium and terminal |
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| CN111596673A (en) * | 2020-07-27 | 2020-08-28 | 江苏广宇科技产业发展有限公司 | Smart driving cloud auxiliary system based on 5G |
| CN114120623A (en) * | 2020-08-28 | 2022-03-01 | 长沙智能驾驶研究院有限公司 | Road right distribution and supervision method and device |
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| CN112562365A (en) * | 2020-11-20 | 2021-03-26 | 复旦大学 | Specific vehicle priority traffic control system based on high-precision positioning terminal |
| CN112581775A (en) * | 2020-12-08 | 2021-03-30 | 平安国际智慧城市科技股份有限公司 | Bus priority passing control method and system of signal lamp and storage medium |
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