关键词: 开门防撞；毫米波雷达；极限学习机；限位器制动；过程防护

Abstract: When the vehicle pulls over, the passengers in the vehicle can't accurately judge the road condition behind because of the blind area of vision and other factors. After blindly opening the door, they collide with the dangerous objects coming from behind, causing serious personal injury and property loss. In this paper, a car door opening and collision avoidance system based on millimeter wave radar is designed. After the door is opened, the object in the rear is detected in real time. The extreme learning machine model is used to judge the danger level, and the brake device of the limiter is used to limit the continuous opening of the door before the danger occurs, so as to avoid the occurrence of serious consequences. The innovation of this paper is to adopt the idea of process protection instead of locking the door, which has continuous protection function in the process of opening the door. The door can be opened at a small angle, which is convenient for people outside the car to understand the intention of passengers inside the car.

Key words: Open door collision avoidance; Millimeter wave radar; Extreme learning machine; Limiter brake; Process protection