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Crossroad traffic signal lamp time variable control system

A technology for traffic lights and intersections, which is applied in the field of laser beaming devices, can solve the problems of difficulty in widespread use, inconvenient installation, and easy to be crushed, and achieves the effect of eliminating external interference.

Inactive Publication Date: 2015-11-11
张金木
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  • Abstract
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Problems solved by technology

[0004] There are also induction coils buried underground in all directions near the intersection. When a car passes by, eddy current loss will occur, and the inductance of the ring-shaped insulated wire will begin to decrease, and the passing of the car can be detected. However, the induction coil is large in size, about 2 m x 2 m, inconvenient to install and easy to be crushed and difficult to be widely used

Method used

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Embodiment Construction

[0015] The traffic flow direction distribution diagram of the intersection traffic signal light time-varying control system is as follows figure 1 As shown, the traffic flow distribution diagram at the intersection only represents one of various types of traffic flow distribution and its traffic flow control, and the time-varying control system of traffic lights at intersections for other types of vehicle flow distribution and traffic flow control can be easily obtained by analogy . figure 1 In the middle, when the red light is on in the east-west direction, in the north-south direction, A is the time when the green light is on for the straight-through and right turn, and B is the time for the green light for the left turn to be on

[0016] The schematic diagram of embedding the laser diode is as follows figure 2 shown. Its structure includes: steel pipe (1), cover plate (2), round glass sheet (3), laser diode kit (4), fixing plate (5), screw kit (6), bracket (7), junction ...

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Abstract

The invention relates to a crossroad traffic signal lamp time variable control system. According to the invention, laser correlation devices mounted at lane outlets of a crossroad are used to identify vehicles waiting for release at the lane outlets and calculate the number of vehicles which reach to a current crossroad after being released at a last crossroad, so that the traffic light timing plan is determined timely.

Description

(1) Technical field: [0001] The invention relates to a time-varying control system for traffic signal lights at crossroads. It uses a laser beam-shooting device installed at the outflow of each lane at the crossroad to identify vehicles waiting for release at the outflow of the lanes, and calculates the number of vehicles arriving at the crossroad after being released at the crossroad ahead. The number of vehicles at the entrance can be determined in real time to determine the timing scheme of traffic lights. (two) background technology: [0002] With the rapid development of my country's economy, the number of urban motor vehicles and the total traffic volume continue to increase, and the corresponding road infrastructure construction is difficult to keep up with in time. capacity bottleneck. Especially during commuting time, the traffic is very congested, and it is quite time-consuming for vehicles to pass through the intersection. Therefore, it is an urgent problem to imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08
Inventor 张金木
Owner 张金木
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