Device and method for measuring traffic flow and travel speed by using infrared technology
An infrared technology, a technology of traffic flow, applied in the field of devices that use infrared technology to measure traffic flow and speed, can solve the problems of long response time, affect the detection effect, large maintenance work, etc., achieve significant social benefits, improve economic benefits, and easily maintenance effect
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[0038] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0039] In this embodiment, infrared technology is used to measure vehicle flow and speed. The device includes an infrared sensor (A1 ~ A7 in Figure 1), a PLC controller and a terminal computer. In this embodiment, the infrared sensor is a through-beam device, the model is FQ50-L20MU-P45P2, the response speed is 0.02S, and it is used to detect passing vehicle signals and time signals.
[0040] The PLC controller (in this embodiment, the model of the PLC controller is Siemens S7-200) is connected to the infrared sensor, and its driving end receives the vehicle signal (such as traffic flow) and time signal sent by the infrared sensor, which is used to The vehicle signal and time signal are processed and uploaded to the terminal computer.
[0041] A measuring device is embedded in the PLC controller, and the measuring device includes the fo...
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