Intersection signal control system with prompting function and method thereof

Abstract

The invention relates to an intersection signal control system with the prompting function, which comprises an indicating device, sensors and a signal controller, wherein the indicating device comprises a signal lamp and an information prompting board for displaying intersection state prompting information; the sensors are arranged on a road section run by vehicles which do not pass through an intersection stop line and comprise a main sensor and an auxiliary sensor, the auxiliary sensor is arranged between the main sensor and the stop line, the main sensor is used for detecting whether the vehicles arrives or not and sending detected information, and the auxiliary sensor is used for detecting whether the vehicles is passing through or not and sending detected information; and the signal controller is used for controlling the signal lamp to change and controlling the information prompting board to display corresponding text prompting information. By the intersection signal control system, the problems of uncertain green time of an intersection signal control system adopting an inductive control mode and inapplicable countdown display mode of the signal lamp in the prior art are solved, so the intersection signal control system is suitable for the inductive control mode and has the prompting function.

Description

technical field [0001] The invention relates to a signal control system and method at a traffic intersection, in particular to a real-time automatic control system and method for an intersection signal with an information prompt function. Background technique [0002] In order to standardize the traffic sequence of motor vehicles and pedestrians passing through the intersection, prevent and reduce the occurrence of road traffic accidents, and improve the efficiency of intersection traffic, more and more intersections at home and abroad have installed signal lights, and the signal lights are controlled by the intersection signal controller to command Vehicles and pedestrians pass in an orderly manner. [0003] At present, the intersection signal controllers used at home and abroad are generally divided into two modes: system control and single point control. Generally, the system control mode is adopted when the motor vehicle flow is large and the distance between the inters...

AI Technical Summary

Problems solved by technology

Although the countdown method can make the car know the waiting time, this method is not suitable for the above-mentioned intersection signal control system using the induction control mode. Because the green light time of a certain direction needs to be judged according to the car situation, such as When there is a car coming in the direction of the green light and there is no car in the other direction, the light will remain green. If there is a car coming in the direction of the green light and there are cars waiting in the other direction, the light will change after the maximum green time is reached. In the control method, since the green light time is uncertain, it is impossible to add a countdown information prompt board to remind passing vehicles or pedestrians

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