Automobile speed measurement system

Abstract

The invention discloses an automobile speed measurement system comprising measurement devices. Each measurement device comprises a single-chip microcomputer, a signal conditioning circuit, a start module and a terminate module. The single-chip microcomputer is connected with the signal conditioning circuit. The start module and the terminate module are connected with the signal conditioning circuit. The start module and the terminate module are arranged beside the highway and a certain distance is reserved between the start module and the terminate module. The start module is used for starting the timer of the single-chip microcomputer. The terminate module is used for stopping the timer of the single-chip microcomputer. The single-chip microcomputer is used for calculating the passing speed of an automobile. There are multiple measurement devices arranged along the highway. The distance between the two adjacent measurement devices is within 10KM-20KM. The devices of the single-chip microcomputer, the signal conditioning circuit, the start module and the terminate module which are relatively low in cost and relatively simple in control mode are adopted, inter-spot speed detection in the prior art is refined and the density of inter-spot speed detection is increased so as to further reduce the possibility of the traffic accident.

Description

technical field [0001] The invention relates to the field of vehicle speed detection, in particular to a vehicle speed measurement system. Background technique [0002] Most of the speed measurement methods currently used in my country's expressways are fixed-point speed measurement, which has caused many drivers to have a fluke mentality and drive at random in the range where there is no speed measurement. There are many hazards when speeding, and drivers cannot fully and correctly perceive Changes inside and outside the car; Weaken the driver's ability to recognize space; The driver's ability to judge speed decreases; Overspeed driving increases the driver's fatigue and reduces the ability to respond; Overspeed driving will make the driver's thinking and judgment mistakes and affect the vehicle. The operation stability of the vehicle, the driving distance of the car increases, and the safety performance of the vehicle is affected. The use of interval speed measurement can e...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the existing technology adopts a single, long-distance interval speed measurement, which cannot effectively avoid the situation of the driver speeding. Interval speed measurement, reduce the chance of drivers speeding in the middle of the expressway, and avoid traffic accidents

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