Vehicle obstacle-avoidance warning system and corresponding circuit thereof

Abstract

The invention discloses an obstacle-avoidance warning system for a vehicle. The system comprises a camera unit, a synthesis module, a distance measuring module, a calculating module and a warning unit, wherein the camera unit placed at the front part of a vehicle body and shooting road condition images in front of the vehicle body from two different visual angles on a same horizontal line; the synthesis module is used for synthesizing the images of the two different visual angles; the distance measuring module is used for measuring distance between the vehicle body and an obstacle by using the synthesized front and back images; the calculating module is used for calculating collision time difference by using the distance, and generating a signal with mark meaning when the calculating collision time difference is equal to or larger than a preset value; and the warning unit is acted by the signal with the mark meaning to warn. Moreover, the invention also discloses a corresponding circuit of the system, and application of the system on an automatic navigation automobile. By integrating multiple advanced techniques of different domains, the automobile has higher safety; and the system improves intelligent degree of the automobile, and is convenient for wide popularization and application based on the advantages of low cost, high performance, strong portability, and the like.

Description

technical field [0001] The invention relates to the technology of distance measurement and warning for vehicle obstacles, in particular to a vehicle obstacle avoidance warning system and its corresponding circuit. Background technique [0002] At present, the ranging technology of vehicles is mainly used in reversing radar products. As a parking assist device for vehicles, parking radar is generally installed at the rear of the vehicle, and transmits signals to the direction of vehicle movement through the built-in ultrasonic device. The time difference calculates the actual distance from the current vehicle to the obstacle, and informs the driver in some form. When the distance is too close to cause a collision accident, the corresponding alarm program is started, so that different alarm information can be used to assist the driver to control Vehicle parking, reversing and other operations. [0003] In the traditional car design, the focus on parking technology is relativ...

AI Technical Summary

Problems solved by technology

[0010] Although the binocular stereo camera technology has been perfected, its application in vehicles has not been discovered. In fact, the method of obstacle avoidance warning based on traditional reversing radar and similar wireless signals has become a common practice in the automotive field. The inertial thinking of technicians, but the technical research on obstacle avoidance in front of the car is extremely limited. The applicant has been committed to the research of automobile related products for many years, paying special attention to finding a breakthrough from the existing technology in order to form a more suitable for the requirements of the times. Technical solutions

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