An Algorithm for Dynamically Adjusting Traffic Light Duration Based on Traffic Flow
A dynamic adjustment, traffic light technology, applied in the field of transportation, can solve the problems of traffic light duration, traffic congestion, signal out of synchronization, etc.
Active Publication Date: 2021-08-20
上海家亦电子科技有限公司
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Problems solved by technology
The current traffic lights are basically based on the current traffic flow in different time periods such as morning peak, evening peak, flat peak, and low valley. The direction of the car is green for a long time, and the actual road vehicle conditions and traffic control signals are not synchronized, which wastes existing road resources; in this way, although most of the time the intersection is smooth, it will fail when there is a sudden change in traffic flow or bad weather. The duration of traffic lights does not match the actual traffic flow, causing traffic congestion, increasing energy consumption and exhaust pollution
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[0030] Set traffic signal controllers at intersections, such as figure 2 Shown, described traffic signal controller comprises single-chip microcomputer, the vehicle counting device that is connected with single-chip microcomputer input end, the ROM memory memory that is connected with single-chip microcomputer has certain capacity, the traffic light that is connected with single-chip microcomputer output end, when the duration of a traffic light ends , the microcontroller compares the number of vehicles in each lane according to the number of vehicles in each lane, and changes the duration of the next traffic light in real time. The lane with a large number of vehicles will extend the green light time or shorten the red light time. .
[0031] In the lanes of each approaching direction centered on the crossroads, a vehicle statistics device is arranged, and the described vehicle statistics device is used for counting the range of L in the lanes of the approaching direction to ...
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A kind of algorithm that dynamically adjusts the time length of traffic lights according to the traffic flow of the present invention is to set up a traffic signal controller at the intersection, and the traffic signal controller includes a single-chip microcomputer, a vehicle statistics device connected to the input terminal of the single-chip microcomputer, and is connected with the single-chip microcomputer The ROM memory, the traffic light that is connected with the single-chip microcomputer output end; Described vehicle counting device is arranged in the lane of each incoming vehicle direction centering on the crossroad, and is used for counting the distance to the crossroad in the lane of incoming vehicle direction to the crossroad as L Within the range, the number of incoming vehicles in each lane is C; at the end of a traffic light, the single-chip microcomputer compares the number of vehicles in each lane, and changes the duration of the next traffic light in real time.
Description
technical field [0001] The invention belongs to the traffic field, and in particular relates to an algorithm for dynamically adjusting the duration of traffic lights according to traffic flow. Background technique [0002] For orderly and smooth traffic on the road, traffic lights at intersections are essential. The current traffic lights are basically based on the current traffic flow in different time periods such as morning peak, evening peak, flat peak, and low valley. The direction of the car is green for a long time, and the actual road vehicle conditions and traffic control signals are not synchronized, which wastes existing road resources; in this way, although most of the time the intersection is smooth, it will fail when there is a sudden change in traffic flow or bad weather. The duration of traffic lights does not match the actual traffic flow, causing traffic congestion, increasing energy consumption and exhaust pollution. Contents of the invention [0003] ...
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IPC IPC(8): G08G1/08
Inventor 王璇杜宇超李萍萍李斌
Owner 上海家亦电子科技有限公司