System for detecting whether car safety belt is worn correctly and detection method thereof

Abstract

The invention discloses a system for detecting whether a car safety belt is worn correctly. The system for detecting whether the car safety belt is worn correctly is characterized in that the detection system comprises that an image acquisition unit acquires the image of the safety belt on a driver and then sends the safety belt image to an image processing unit, the image processing unit performs a judgment on the safety belt image, and an alarm unit is controlled to give out a sound-light alarm. By adopting the structure, the wearing way of the safety belt can be effectively identified in a manner that a judgment is made according to the type of the characteristic segment through detecting the driver regional segment angle and searching for the safety belt characteristic segment which meets the wearing condition, and the detection error caused by the fact the driver does not wear the safety belt correctly is overcome.

Description

technical field [0001] The invention relates to the use detection of the safety belt of a car, in particular to a detection system and a detection method for the correct wearing of the safety belt of a car. Background technique [0002] As the most effective safety protection device in the car, the seat belt binds the driver on the seat when the car brakes suddenly, preventing or reducing the driver's injury from secondary collision. When a dangerous situation occurs, the correct wearing of seat belts can greatly reduce the casualty rate. However, for various reasons, drivers do not wear seat belts or do not wear seat belts correctly from time to time. [0003] At present, the main way to detect seat belt wearing is to install a buckle sensor at the seat belt slot. After the car is started, the seat belt is not buckled into the slot, and the detection system will issue a prompt. However, the driver still has incorrect wearing behaviors that make the detection invalid durin...

AI Technical Summary

Problems solved by technology

However, the driver still has incorrect wearing behaviors that make the detection invalid during driving. There are three main types: 1. Do not wear a seat belt, and use an independent buckle to replace the seat belt buckle and insert it into the slot; 2. When the seat is empty Fasten the seat belt on the back of the seat, and lean against the back when getting on the bus; 3. When the seat is empty, fasten the seat belt on the back of the seat, and pull the shoulder belt out from behind and straddle the chest after getting on the bus

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