汽车可视倒车雷达预警系统的设计与实现.PDF

. 2 010 . 18 ( 1) # 150 # Computer Measurement Control : 1671-4598( 2010) 01-0150- 03 : T N9581 93 : A 1 1 1 2 黄丽萍 , 和军平, 倪 龙 , 林廖军 ( 11 , 518055; 21 , 518055) : / 0 , ; , , , , , T FT LCD ; , ; : ; ; ; ; T FT LCD Design and Implement ation of Visible Reversing Radar Alert System 1 1 1 2 Huang Liping , He Junping , Ni Long , Lin Liaojun ( 11 College of Electron Engineering, Harbin Institute of T echnology, Shenzhen 518055, China; 21 Shenzhen H anqian Electronic Technology Co. , Lt d, Shenzhen 518055, China) Abstract: Aiming at the car accident caused by bad/ back-sig ht0, this paper introduces a new visible r ever sing radar alert system. This system w orks during back-draft time, it uses ultrasonic w ave transmitted by an ultrasonic sensor to detect obstacle inform ation. After the ul- trasonic w ave information is processed to distances information by microprocessor, the system w ill start back sight photog raph system, and then display the distances information and back- sight im age on the T FT LCD scr een by u sing of on screen display ( OSD) technology. When the distance is too small, the system w ill start to alert w ith actua-l person sound. This sy stem has some advantages of simple installing, strong ant-i detonation ability, clear back- sight video, high accuracy and w orking stability. Key words: ultrasonic distance measuring, reversing radar, back-sight video, on screen display ( OSD) , T FT LCD screen display 1 : , , 11 1