Automobile collision avoidance system based on pulse counting infrared distance measurement device

Abstract

The invention discloses an automobile collision avoidance system based on a pulse counting infrared distance measurement device. The automobile collision avoidance system based on the pulse counting infrared distance measurement device comprises an infrared emitter, an infrared receiver, a microcontroller module, and a display unit, an alarm unit and a braking deceleration unit, which are connected with the microcontroller module, wherein the infrared emitter comprises an oscillator, a constant current emission circuit, a first instruction emission circuit and an emission probe, the infrared receiver comprises an infrared ray receiver module, an amplification circuit, a reshaping circuit and a second instruction emission circuit, and the microcontroller module comprises a counting unit, a data processing unit, a parameter comparison unit and a control unit. The automobile collision avoidance system based on the pulse counting infrared distance measurement device greatly improves measurement accuracy by calculating the number of pulses during the period from receipt of a counting starting signal sent by the infrared receiver to receipt of a counting stopping signal sent by the infrared receiver, and thereby effectively prevents automobile accidents from occurring.

Description

technical field [0001] The invention relates to an infrared distance measuring system, in particular to an automobile collision avoidance system based on a pulse counting infrared distance measuring device, and belongs to the field of electronic technology. Background technique [0002] With the development of the economy, the transportation industry is becoming more and more prosperous. However, due to the difficulty in keeping up with hardware such as road conditions and traffic management, coupled with subjective principles such as driving overtaking, leaving the car to drive away, and misestimating the distance between cars, traffic accidents collide frequently. occur. The fundamental measure to solve this problem is to install a device that can automatically track and measure distances and automatically brakes in dangerous distances for moving cars. [0003] Due to the development of electronic technology, laser ranging, microwave radar ranging, ultrasonic ranging and ...

AI Technical Summary

Problems solved by technology

It is impossible for this kind of sensor to determine the distance of objects very accurately, it is mainly used in alarm systems, such as detecting pedestrians in the lane

3) Video imaging, due to its high cost, also limits its use

4) Microwave, microwave is easily interfered by external electromagnetic waves

This invention meets the requirements of general short-distance ranging, but the cost is high and the measurement accuracy needs to be further improved

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