A traffic signal lamp control method and traffic signal lamp system

Abstract

The invention discloses a traffic light control method. A traffic flow detector is used for real-time detecting traffic flow signal at the exit of a crossing, and when the exit is identified in jam status, the signal lights for coming to the crossing are all turned red, until the jam status is released. The invention also discloses a traffic light system. The invention is used for real-time detecting vehicle status at the exit of a crossing, and when the exit is in jam status, the invention prevents vehicle from further moving to the exit. The invention prevents vehicles from jamming the whole crossing, and ensures normal running of vehicles in other directions.

Description

technical field [0001] The invention relates to a traffic signal light control method and system, in particular to a traffic signal light control method and a traffic signal light system for adjusting traffic signal light signals according to the output signal of a traffic flow detector. Background technique [0002] At present, the more advanced traffic signal controllers have the function of induction control. The principle is to adjust the green light time of the current phase in real time according to the traffic flow signal at the corresponding entrance detected by the vehicle detector (ground induction coil, video detector) to achieve The purpose of matching signal timing with traffic flow. For example, if the vehicle detector detects that the traffic flow at the entrance of a crossroad is larger than that at other entrances, the green light lighting time corresponding to the entrance will be extended. Because this technology is to adjust the green light time, it can ...

AI Technical Summary

Problems solved by technology

As a result, the entire intersection will be congested and the entire intersection will be paralyzed. The current control strategy of the signal machine cannot solve this problem, and it can only be solved by manual command.

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