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What is the Principle of Vehicle Speed Measurement?

1 Answers

McLondyn

07/29/25 4:23pm

Vehicle speed measurement generally uses radar to measure speed. The principle is to calculate the frequency shift of the received reflected wave to determine the moving speed of the measured object. In addition, vehicle speed measurement can also be done through methods such as loop speed measurement, video speed measurement, microwave radar speed measurement, and acoustic speed measurement. The following is a related introduction to speed measurement: Speed measurement methods: Highway interval speed measurement refers to setting up two adjacent speed measurement points on the same road section. By measuring the time it takes for a vehicle to pass the two speed measurement points, the average driving speed of the vehicle on that road section is calculated. Based on the speed limit standard of that road section, it is determined whether the vehicle is speeding, making it more scientific and fair. Principle of interval speed measurement: A certain distance on the highway will have two cameras, usually covering a 30-kilometer interval. When a vehicle passes the two cameras, electronic equipment records the time it takes for the vehicle to travel this distance, thereby determining whether the driver is speeding.

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