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
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[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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