Method for measuring distance between cars and telemeter

Abstract

This invention relates to one method and device to measure car distance, which is based on human visual principle image to collect different distance at different time point and uses standard object length of car to be tested at front wind block glass of car or transparent label on meter bench as standard ruler to judge distance between car and driving car; the meter ruler is to measure different car distance and the car to be tested at transparent label object length.

Description

Technical field: [0001] The invention relates to a vehicle distance measurement method and a distance finder based on the visual imaging principle, and relates to vehicle distance measurement. Background technique: [0002] Automobile is a very widely used means of transportation and transportation in modern society. With the popularization of highways and urban expressways, and the improvement of the original main transportation road conditions, the speed of vehicles is constantly increasing. Under such a background, maintaining a necessary safe distance for high-speed vehicles and maintaining a safe driving speed under a certain distance between vehicles is the key to ensuring safe and smooth roads and the safety of vehicles and passengers. In terms of distance measurement of driving vehicles, the technologies used in the previous distance measurement methods mainly include: infrared technology, ultrasonic technology, laser technology, radar technology, etc., all of which ...

AI Technical Summary

Problems solved by technology

But at present, there are many types of vehicle models, and the width of the rear of the vehicle is not the same, and more and more vehicle rear ends are designed to be streamlined, and its boundary is difficult to capture, so the rangefinder measurement is not accurate

Moreover, this distance meter only has the function of preventing rear-end collisions, and does not have the function of long-distance distance measurement.

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