摘要
倒车雷达是汽车泊车时的安全辅助装置，能以声音警示和距离显示提醒驾驶员后方障碍物的情况，是汽车的选装配件之一；介绍了一种以AT89C2051单片机为核心，采用超声波测距原理设计的汽车倒车雷达，能在0～1．5m内精确显示测量距离并发出三种危险等级的警示音以提醒驾驶员；该倒车雷达具有较低的成本和较高的性能，已应用于某车型；在简要介绍其工作原理基础上，详细介绍了系统的硬件电路设计和软件编程方法，并阐述了设计关键和使用效果。
Car reversing aid system is the safety aid device on vehicle parking, can reminds the driver by the sound caution and the range -amplitude display the obstacle situation, is the automobile chooses one of assemblages. This paper presents a AT89C2051 microcontroller to the core, using ultrasonic ranging principle design of the car reversing radar, can be 0-1.5m within the precise indication of measuring distance and issued three kinds of dangerous levels of warning sound to alert the driver. The car reversing aid system has a low cost and high performance, has been applied to a model. After a brief introduction of its working principle, the system hardware circuit design and software programming methods are described in detail, and discusses the key design and application effect.
出处
《计算机测量与控制》
CSCD
北大核心
2010年第5期1174-1175,1192,共3页
Computer Measurement &Control
