摘要
基于大型车辆车身长、倒车有盲区的特点,提出了一种部署简便的、基于无线射频信号传输方式的智能辅助倒车系统。简要介绍了超声波测距原理和本系统设计方案,采用温度补偿方法消除温度对超声波测距精度的影响,采用433MHz无线射频通信减少雷达主机与显示器之间布线的不便。本方案实施方便、可靠、实用性强,可在半挂车、挂车、重型载货汽车和大型客车等不便于布线的车辆上应用推广,特别适合于车辆辅助倒车系统的后装市场。
Based on the big vehicle’s characteristics of long body and a reversing blind area,it puts forward a simple deployment and wireless system of assist reversing.It introduces ultrasonic ranging principle and the design of the system scheme briefly,uses the temperature compensation method to eliminate the influence of temperature on the velocity,reduces the wiring and mobile inconvenience between the radar host and the monitor using 433 MHz wireless RF communication,it has done the test of RF communication.This scheme is convenient,reliable,practical and can be used in the semi-trailer、 trailer、heavy truck and bus which is not convenient for wiring.Particularly it is suitable for the market of vehicle parking assist system.
出处
《电子设计工程》
2013年第17期67-70,73,共5页
Electronic Design Engineering
基金
广东省省部产学研结合项目(2011A090200013)
广东省粤港关键领域重点突破项目(2011A091200003)
深圳市生物
互联网
新能源
新材料产业发展专项资金项目(JC201104210135A)
关键词
倒车辅助系统
无线射频
超声波测距
温度补偿
大型车辆
assisting system of reversing
wireless RF
ultrasonic ranging
temperature compensation
oversize vehicle
