Method for detecting vehicle and realizing intelligent traffic light timing by using ultrasonic wave

An ultrasonic and traffic light technology, which is applied in the field of ultrasonic detection and intelligent timing of traffic lights, can solve the problems of difficult promotion and high cost, and achieve the effects of reducing pedestrian interference, low design cost, and improving real-time performance and adaptability

Inactive Publication Date: 2010-11-10
罗仁泽 +1
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Problems solved by technology

This method is much more convenient than the circular ground induction coil, but the current RTMS system is not easy to promote on a large scale due to the high cost

Method used

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  • Method for detecting vehicle and realizing intelligent traffic light timing by using ultrasonic wave
  • Method for detecting vehicle and realizing intelligent traffic light timing by using ultrasonic wave
  • Method for detecting vehicle and realizing intelligent traffic light timing by using ultrasonic wave

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Embodiment Construction

[0037] The intelligent traffic management system mainly has the following components: ultrasonic detector 6, fuzzy controller 7, main controller 8, traffic light display board 9 and control center computer 10.

[0038] After the number of vehicles detected by the ultrasonic detector 6 (with vehicle counting function) is input to the fuzzy controller 7, the fuzzy controller 7 calculates the duration of the green light at the next moment through a fuzzy algorithm, and then transmits the obtained duration T to the master. The controller 8; the main controller 8 sends out the LED green light display time plate 9 in the direction to pass according to the received T value, and finally realizes real-time control; the computer control center 10 is connected with the main controller 8 for serial port communication.

[0039] Ultrasound uses a separate device for sending and receiving, that is, a pair of ultrasonic waves detects the traffic flow of a lane. according to figure 1 According ...

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Abstract

The invention provides a method for detecting vehicles and realizing intelligent traffic light control by using ultrasonic waves. Through transmitting and receiving the ultrasonic waves, the detection of the vehicles is realized, the number of the vehicles is counted, the obtained data is input into a fuzzy controller, a fuzzy algorithm is used for calculation to obtain the duration of a green light in the next cycle and thereby the intelligent timing of the traffic lights is realized. The invention provides a very good solution to the problem of traffic delay caused by fixed timing in the existing traffic control.

Description

technical field [0001] The patent of the present invention relates to a method of using ultrasonic detection and intelligent timing of traffic lights, using ultrasonic to detect traffic flow, and automatically adjusting the period and duration of traffic lights according to the size of the flow, so as to realize the traffic system of intelligent control of traffic lights. technical background [0002] The Intelligent Transportation System (ITS) has been proposed in our country for many years, but the current large and medium-sized cities still cannot apply the ITS well. Due to road conditions and other reasons, the current traffic light signal change cycle is mostly fixed, lacking real-time and variability. Sometimes at the intersection, the accumulation of cars on the main road is almost saturated, but there are no vehicles on the lane, causing the cars on the main road to wait for the green light meaninglessly. At present, some large and medium-sized cities also adopt the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08G08G1/095
Inventor 罗仁泽黄家盛刘盈伍晓琼高頔
Owner 罗仁泽
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