Traffic intersection control method and system based on driving direction

Abstract

The invention provides a traffic intersection control method and system based on the driving direction, the vehicle driving path is judged according to the vehicle position and the driving destination, the driving direction of the intersection is judged according to the driving path, and if the driving direction of the current intersection is unique, the driving direction serves as demand data for controlling intersection signal lamps; and if the driving direction of the current intersection is not unique, the user is reminded to select the driving direction through man-machine interaction between the vehicle terminal and the user, and then the selection of the user is used as demand data for controlling intersection signal lamps. Through the fusion of intelligent navigation and human-computer interaction, the driving direction of the vehicle is judged, and the accurate control of the signal lamp is realized.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to a traffic intersection control method and system based on driving direction. Background technique [0002] An intersection usually has multiple intersection directions, and each intersection direction usually has three specific driving directions: turn left, go straight and turn right. The current control method of intelligent traffic lights is based on the traffic flow detection based on the direction of the intersection, such as Fixed-point detection devices such as smart cameras, induction coils, radars, and ultrasonic waves, or vehicle-mounted mobile detection devices through wireless positioning, all detect the overall traffic flow in a certain intersection direction, but cannot specifically detect the traffic flow in different driving directions. [0003] The "Traffic Control Method and Navigation System" with application number 201911004374X uses the vehicle positi...

AI Technical Summary

Problems solved by technology

[0002] An intersection usually has multiple intersection directions, and each intersection direction usually has three specific driving directions: turn left, go straight and turn right. The current control method of intelligent traffic lights is based on the traffic flow detection based on the direction of the intersection, such as Fixed-point detection devices such as smart cameras, induction coils, radars, and ultrasonic waves, or vehicle-mounted mobile detection devices through wireless positioning, all detect the overall traffic flow in the direction of a certain intersection, but cannot specifically detect the traffic flow in different driving directions.

[0003] The "Traffic Control Method and Navigation System" with application number 201911004374X uses the vehicle position in the navigation data to extract traffic demand information at traffic intersections to control signal lights, which is still based on the intersection direction and does not mention the driving direction

In addition, intelligent navigation can infer the driving direction of the vehicle at the traffic intersection through the matching of the running track and the map, but when there are multiple navigation paths at the intersection, or when the user does not take the recommended path, or when the user changes the navigation path, It is necessary to judge the driving direction through the change of the vehicle position, that is to say, the navigation system can only judge the driving direction according to the trajectory of the vehicle, that is, the driving direction of the vehicle can only be obtained after the vehicle passes the traffic intersection, resulting in a lag in the judgment of the driving direction

[0004] The solid-line lane is forbidden to change lanes. The solid-line lane can distinguish left-turning, straight-going and right-turning vehicles on the solid-line lane, but the length of the solid-line lane at the intersection is only tens of meters. When the queue of vehicles at the intersection is long, It is also impossible to judge the driving direction of vehicles on the lane through the lane. For a large number of merged lanes that go straight + turn left, and go straight + turn right, it is even impossible to specifically distinguish the vehicles that go straight, turn left, and turn right.

[0005] The current intelligent traffic control methods are all based on vehicle detection in the general direction of the intersection, which cannot specifically identify the traffic flow in each driving direction, and the control of intelligent signal lights cannot be specific to different driving directions, such as turning left when there are no left-turning vehicles Green light, there is a phenomenon that the left turn green light is empty, resulting in a waste of left turn green light, and restricting the passage of vehicles in other directions

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