倒车雷达相关介绍.docVIP

倒车雷达相关介绍 关键字： PDC（Parking Distance Control）--倒车雷达的英文简写，倒车雷达探头，倒车雷达技术 摘要： 从二战以来，人们开始对雷达的研究越来越重视，其在军事上的作用是毋庸置疑的。雷达的好坏决定很多大型战略武器（包括核潜艇、战斗机等等）的性能，很明显在现代化战争中雷达对战争的胜负起着至关重要的作用。为了在现代化战争中立于不败之地，世界各国都在大力革新雷达技术，也正是这样促进了雷达较大发展。各式的雷达展现在全人类的眼前，不仅它的外观形状各异给人们带来的新奇，它的各种作用给人们在现代化生活带来的方便也是深有体会的。随着雷达技术的愈发成熟，让它不仅为军事工作，也慢慢的夜开始为人们的日常生活服务。本文就是介绍雷达在生活中的运用，汽车已融入人们生活，可驾驶汽车时倒车是让驾驶员十分头疼的，倒车雷达便应运而生。本文重点阐述了倒车雷达的工作原理和倒车雷达探头，介绍了倒车雷达的选购和安装，也概述了其更新换代。 From since world war ii, people start to pay more attention to the research, radar in the military action is beyond doubt. The radar is critical to large strategic weapons (including nuclear submarine, fighter planes, etc), and obviously on the performance of modern war to win the war radar plays a vital role. In order to remain invincible in the war, all countries in the world in radar technology innovation, it is also promoted the development of large radar. All kinds of radar display in the eyes of all mankind, not only its appearance shapes bring the novel, its various role in modern life for people to bring convenience and have experience greatly. With the increasingly mature radar technology, let it not only for military work, also slowly night for Peoples Daily life. This paper is introduced the application in life, radar into peoples life, the car has to drive a car can make when the driver is backing the back-draft radar is very headache, produce. This paper expounds the working principle and the back-draft radar back-draft radar sensor is introduced, and the installation of choose and buy back the radar, summarizes its renewal. 正文： 倒车雷达的工作原理 倒车雷达的主要作用是在倒车时，利用超声波原理，由装置于车尾保险杠上的探头发送超声波撞击障碍物后反射此声波探头，从而计算出车体与障碍物之间的实际距离，再提示给驾驶者，使停车和倒车更容易、更安全。 倒车雷达系统的组成：1．主机２．显示器３．探头２～８个倒车雷达产品使用发射和接收一体化超声波探头，采用单片机控制超声波发射，发射的超声波遇到障碍物反射,探头接收反射的超声波送入放大电路进行放大，由单片机进行数据处理，然后送显示器显示障碍物距离和方位。 超声波探头利用压电陶瓷作为换能器件实现超声波的发射和接收。给探头压电陶瓷片施加一定的超音频电信号，压电陶瓷片将电能转换成声能发送超声波。超声波作用于探头压电陶瓷片，压电陶瓷片将声能转换成电信号，微弱的电信号经放大后送电路处理。 PDC（Parking Distance Control）系统的工作原理就是通常是在车的后保险杠或前后保险杠设置雷达侦测器， 用以侦测前后方