Anti-collision early-warning device and method for passenger car

Abstract

The invention discloses an anti-collision early-warning device for a passenger car, comprising a radar sensor, three groups of ultrasonic sensors, three ultrasonic ranging modules, an anti-collision controller and a warning device, wherein the radar sensor is used for detecting the relative distance and the relative speed of a front vehicle and the passenger car; the three groups of ultrasonic sensors are respectively arranged at the left, the right and the tail parts of a car body; the three ultrasonic ranging modules are respectively connected with the three groups of ultrasonic sensors andused for receiving an electrical signal of each ultrasonic sensor; the position information of a target object is obtained after the electrical signals are processed so as to detect the distances between the two sides of the passenger car and the short distance target object as well as between the backside of the passenger car and the short distance target object; and the anti-collision controller is respectively connected with the radar sensor and the three ultrasonic ranging modules. By means of the device provided by the invention, when the car runs, the target objects around the car body can be automatically detected, the distance between the target objects and the car body can be monitored in real time; and according to a certain early-warning method, when the target objects enter within the range of a safe distance, a warning message is sent through voice so that a driver can be prompted for taking steps.

Description

technical field [0001] The invention relates to an automobile safety early warning system, in particular to a passenger car anti-collision early warning device and an anti-collision early warning method. Background technique [0002] In recent years, with the rapid growth of my country's car ownership, the road transportation safety situation has become increasingly severe. In particular, severe and vicious traffic accidents caused by operating vehicles represented by medium and heavy commercial vehicles frequently occur. Accidents caused by medium and large commercial vehicles have caused significant economic losses, as well as heavy casualties and adverse social impacts. According to incomplete statistics, the vehicle type with the largest proportion of traffic accidents in the past three years is passenger cars. And various collisions such as frontal collisions, side collisions and rear-end collisions account for more than 80% of accident causes. According to the resea...

AI Technical Summary

Problems solved by technology

[0005] 1) Failure to monitor both sides of the vehicle;

[0006] 2) A fixed safety distance value is usually set, which cannot meet the needs of various driving conditions

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