CN215265095U - Intelligent intersection control system based on vehicle-road cooperation - Google Patents
Intelligent intersection control system based on vehicle-road cooperation Download PDFInfo
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- CN215265095U CN215265095U CN202121624368.7U CN202121624368U CN215265095U CN 215265095 U CN215265095 U CN 215265095U CN 202121624368 U CN202121624368 U CN 202121624368U CN 215265095 U CN215265095 U CN 215265095U
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Abstract
The utility model provides an intelligent intersection control system based on vehicle and road is in coordination, including high in the clouds control center, lane change district, regulation and control district, trackside information perception unit, on-vehicle the control unit. The cloud control center is a remote intersection traffic information processing and control decision making platform and is used for receiving dynamic traffic information acquired by the roadside information sensing unit and the vehicle-mounted control unit, fusing the acquired effective information, deciding the optimal safe speed of each vehicle passing through the intersection based on two basic safe conditions of collision with front vehicles in different lanes and collision with conflicting vehicles in the intersection, and feeding the optimal safe speed information back to the vehicle-mounted control unit of the vehicle. The intelligent intersection control system based on the vehicle-road cooperation can realize intelligent conversion of an intersection control mode, so that vehicles can rapidly pass through the intersection at an optimal safe speed without collision under the condition of meeting basic safe conditions, the full utilization of time and space resources of the intersection is realized, the traffic efficiency of the road intersection is improved, the vehicle delay is reduced, and the traffic jam is relieved.
Description
Technical Field
The utility model relates to a road intersection control field especially relates to an intelligent intersection control system based on car road is in coordination.
Background
The intersection is an important node in an urban road network, and under a traditional signal lamp control system, a vehicle needs to be decelerated and stopped when passing through the red light intersection, and continues to travel after a green light signal is released. In the process, the frequent start, stop, acceleration and deceleration behaviors of the vehicle not only aggravate the energy consumption, but also increase the delay of the driving time and influence the passing efficiency of the intersection. In addition, traffic conflicts exist only in local areas of conflict points of running vehicles in all directions of the intersection, and the existing signal lamp control mode causes waste of space-time resources at the intersection to a certain extent.
Therefore, under the environment of cooperative traffic of the vehicle and the road, the traditional intersection signal lamp control mode can not adapt to the development pace of the intelligent traffic era any more. Under the condition of complete layout construction of intelligent traffic infrastructure, by means of leading-edge technologies such as big data, cloud computing, 5G communication, artificial intelligence and the like, running vehicles on a road can be closely fused with the surrounding environment, real-time information perception and interactive sharing among vehicles, vehicles and roads and vehicles and clouds are achieved, and therefore technical support is provided for revolution of an intersection control system and optimal distribution of time and space gaps, and a road intersection control mode is upgraded towards the direction of intellectualization and refinement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent intersection control system based on vehicle and road are cooperative, this control system can cater to future intelligent transportation ecosystem's development demand, can acquire the running state information and the road conditions traffic information of intersection vehicle in real time through V2X information interaction to provide driving action suggestion for the vehicle based on the perception information, optimize vehicle running state, thereby guarantee intersection driving safety, improve the current efficiency of intersection.
In order to achieve the above object, the utility model discloses a technical solution is:
an intelligent intersection control system based on vehicle-road cooperation comprises a cloud control center, a lane changing area, a regulation area, a roadside information sensing unit and a vehicle-mounted control unit;
the cloud control center is a remote intersection traffic information processing and control decision making platform and is used for receiving dynamic traffic information acquired by the roadside information sensing unit and the vehicle-mounted control unit, carrying out fusion processing on the acquired effective information, deciding the optimal safe speed of each vehicle passing through the intersection based on two basic safe conditions of not colliding with front vehicles in different lanes and not colliding with conflicting vehicles in the intersection, and feeding the optimal safe speed information back to the vehicle-mounted control unit of the vehicle;
the lane changing area is positioned in an intersection entrance lane and is connected with the regulating area, left-turn, straight-going and right-turn road marks are arranged in each lane of the lane changing area, and the lane is changed in advance according to the advancing direction after the vehicle enters the lane changing area;
the regulation and control area is positioned in an entrance lane of the intersection and is connected with the lane changing area and the intersection, the lane of each regulation and control area is provided with a left-turn road marking, a straight-going road marking and a right-turn road marking, the lane changing and overtaking of the vehicle are forbidden in the regulation and control area, and the vehicle receives an instruction signal issued by the cloud control center in the regulation and control area to carry out speed regulation;
the roadside information sensing unit is arranged at the roadside of the area around the road intersection, the lane changing area and the regulation and control area, is used for monitoring and acquiring road traffic information and environmental conditions in the local area of the intersection, including traffic flow of each lane, lane occupancy, road safety conditions and road surface slippery state, and sending the acquired related information to the cloud control center;
the vehicle-mounted control unit is arranged in a running vehicle and used for acquiring running state information of the vehicle, including running speed, running acceleration, running direction and running position, sending acquired related information to the cloud control center and receiving a command signal fed back by the cloud control center to adjust the speed of the vehicle.
Preferably, the lane-change area length is set to 300 m.
Preferably, the regulatory region is set to 500m in length.
Preferably, the arrangement pitch of the roadside information sensing units is 50 m.
The utility model has the advantages that:
this intelligent intersection control system can realize crossing control mode's intelligence and change, carry out the intelligent management and control that becomes more meticulous to crossing vehicle through high in the clouds control center, make the vehicle can reach the purpose that the conflict was cleared up through speed adjustment in advance, satisfying under the basic security condition, with the quick crossing of optimum safe speed no collision, thereby make the vehicle no longer be subject to the restraint of traditional signal lamp at the transit time at crossing, for crossing vehicle provides more fragmentation, the safe clearance of passing of discretization, realize the make full use of crossing space-time resource, improve intersection current efficiency, reduce the vehicle delay, alleviate traffic jams.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an intelligent intersection control system based on vehicle-road cooperation;
FIG. 2 is a control flow chart of an intelligent intersection based on vehicle-road coordination;
FIG. 3 is a flow chart of vehicle speed decision at an intelligent intersection based on vehicle-road coordination;
in the figure: 1. a cloud control center; 2. a lane change area; 3. a regulatory region; 4. a roadside information sensing unit; 5. and an in-vehicle control unit.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
with reference to fig. 1 to 3, an intelligent intersection control system based on vehicle-road cooperation includes a cloud control center 1, a lane change area 2, a regulation area 3, a roadside information sensing unit 4, and a vehicle-mounted control unit 5.
The cloud control center 1 is a remote intersection traffic information processing and control decision making platform, and is used for receiving dynamic traffic information acquired by the roadside information sensing unit 4 and the vehicle-mounted control unit 5, performing fusion processing on the acquired effective information, making a decision on the optimal safe speed of each vehicle passing through the intersection based on two basic safe conditions of collision with front vehicles in different lanes and collision with conflicting vehicles in the intersection, and feeding the optimal safe speed information back to the vehicle-mounted control unit 5 of the vehicle.
The lane changing area 2 is positioned in an intersection entrance lane and is connected with the regulating area 3, left-turn, straight-going and right-turn road marks are arranged in each lane of the lane changing area 2, and the lane is changed in advance according to the advancing direction after the vehicle enters the lane changing area 2.
The control area 3 is located in an intersection entrance lane and is connected with the lane changing area 2 and the intersection, left-turn, straight-going and right-turn road marks are arranged in each lane of the control area 3, lane changing and overtaking are forbidden in the control area 3, and the vehicle receives an instruction signal issued by the cloud control center 1 in the control area 3 to adjust the speed.
The roadside information sensing unit 4 is installed in the surrounding area of the road intersection, the lane changing area 2 and the roadside of the regulation and control area 3, is used for monitoring and collecting road traffic information and environment conditions in the local area of the intersection, including traffic flow of each lane, lane occupancy, road safety conditions and road surface slippery state, and sends the collected related information to the cloud control center 1.
The vehicle-mounted control unit 5 is installed in a running vehicle and used for collecting running state information of the vehicle, including running speed, running acceleration, running direction and running position, sending collected related information to the cloud control center 1 and receiving a command signal fed back by the cloud control center 1 to adjust the vehicle speed.
In order to allow the vehicle to have enough time and space to change lane before entering the regulation area, in this embodiment, the length of the lane change area is preferably set to 300 m.
In order to allow the vehicle to have enough time and space to perform speed adjustment before entering the intersection, in the present embodiment, the length of the control region is preferably set to 500 m.
In order to meet communication requirements such as data information transmission speed, accuracy, signal coverage and the like, in this embodiment, preferably, the layout pitch of the roadside information sensing units is 50 m.
The following examples are provided for the purpose of illustration.
When a vehicle enters an intersection control area, the vehicle changes lanes in a lane changing area 2 according to the driving direction, a road side information sensing unit 4 and a vehicle-mounted control unit 5 send collected traffic information to a cloud control center 1, the cloud control center 1 performs fusion processing on all received effective information, vehicle speed decision is performed based on two basic safety conditions of collision with front vehicles in the same lane and collision with conflicting vehicles in an intersection, a space gap is searched for each vehicle when safe passing is performed through a speed decision model, and a vehicle safe speed value area phi is obtained1And phi2And further determines the optimal safe speed of the vehicle passing through the intersection, and feeds back the optimal safe speed information to the vehicle-mounted control unit 5 of the corresponding running vehicle. And the vehicle entering the regulation and control area 3 performs speed regulation after receiving the instruction information, and keeps running at a constant speed after being regulated to the optimal safe speed until the vehicle leaves the intersection.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides an intelligent intersection control system based on vehicle and road is in coordination which characterized in that: the system comprises a cloud control center, a lane changing area, a regulation and control area, a roadside information sensing unit and a vehicle-mounted control unit;
the cloud control center is a remote intersection traffic information processing and control decision making platform and is used for receiving dynamic traffic information acquired by the roadside information sensing unit and the vehicle-mounted control unit, carrying out fusion processing on the acquired effective information, deciding the optimal safe speed of each vehicle passing through the intersection based on two basic safe conditions of not colliding with front vehicles in different lanes and not colliding with conflicting vehicles in the intersection, and feeding the optimal safe speed information back to the vehicle-mounted control unit of the vehicle;
the lane changing area is positioned in an intersection entrance lane and is connected with the regulating area, left-turn, straight-going and right-turn road marks are arranged in each lane of the lane changing area, and the lane is changed in advance according to the advancing direction after the vehicle enters the lane changing area;
the regulation and control area is positioned in an entrance lane of the intersection and is connected with the lane changing area and the intersection, the lane of each regulation and control area is provided with a left-turn road marking, a straight-going road marking and a right-turn road marking, the lane changing and overtaking of the vehicle are forbidden in the regulation and control area, and the vehicle receives an instruction signal issued by the cloud control center in the regulation and control area to carry out speed regulation;
the roadside information sensing unit is arranged at the roadside of the area around the road intersection, the lane changing area and the regulation and control area, is used for monitoring and acquiring road traffic information and environmental conditions in the local area of the intersection, including traffic flow of each lane, lane occupancy, road safety conditions and road surface slippery state, and sending the acquired related information to the cloud control center;
the vehicle-mounted control unit is arranged in a running vehicle and used for acquiring running state information of the vehicle, including running speed, running acceleration, running direction and running position, sending acquired related information to the cloud control center and receiving a command signal fed back by the cloud control center to adjust the speed of the vehicle.
2. An intelligent intersection control system based on vehicle-road cooperation according to claim 1, characterized in that: the length of the lane change area is set to 300 m.
3. An intelligent intersection control system based on vehicle-road cooperation according to claim 1, characterized in that: the length of the regulatory region was set to 500 m.
4. An intelligent intersection control system based on vehicle-road cooperation according to claim 1, characterized in that: the arrangement distance of the roadside information sensing units is 50 m.
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| CN202121624368.7U CN215265095U (en) | 2021-07-16 | 2021-07-16 | Intelligent intersection control system based on vehicle-road cooperation |
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| CN202121624368.7U CN215265095U (en) | 2021-07-16 | 2021-07-16 | Intelligent intersection control system based on vehicle-road cooperation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171371A (en) * | 2022-06-16 | 2022-10-11 | 海信集团控股股份有限公司 | Cooperative type road intersection passing method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171371A (en) * | 2022-06-16 | 2022-10-11 | 海信集团控股股份有限公司 | Cooperative type road intersection passing method and device |
| CN115171371B (en) * | 2022-06-16 | 2024-03-19 | 海信集团控股股份有限公司 | Cooperative road intersection passing method and device |
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