现代电子技术2018，Vol.41Issue(10)：15-18,4.DOI:10.16652/j.issn.1004⁃373x.2018.10.004
TDC-GP2在汽车防撞系统设计中的应用
Application of TDC-GP2 to automobile anti-collision system design
摘要
Abstract
To resolve the problems such as low precision and weak extensibility of auto reversing anti-collision system which takes SCM as the main controller,a high-precision auto reversing anti-collision system based on FPGA and TDC-GP2 is designed by combining with the ultrasonic distance measurement principle. In the system,the FPGA chip is taken as the main controller,and the idea of modularized design is adopted. The high-precision time difference measurement chip TDC-GP2 is used to measure the time difference of ultrasonic propagation and calculate the vertical distance between the rear end of automo-bile and the obstacle,so as to achieve the MM-level precision of distance measurement for the system and meanwhile achieve the voice prompt and LED visual display of the distance. The test shows that the system operates stably,has good performance and high precision,and can be successfully applied to the auto reversing system.关键词
防撞系统/FPGA/超声波测距/TDC-GP2/时差法/倒车系统Key words
anti-collision system/FPGA/ultrasonic distance measurement/TDC-GP2/time difference method/auto re-versing system分类
信息技术与安全科学引用本文复制引用
王生毅,马宗敏,李康康,张真榕..TDC-GP2在汽车防撞系统设计中的应用[J].现代电子技术,2018,41(10):15-18,4.基金项目
国家自然科学基金资助项目(61335008)Project Supported by National Natural Science Foundation of China(61335008) （61335008）
