随着社会经济的发展交通运输业日益兴旺,汽车的数量在大幅攀升。交通拥挤状况也日趋严重,撞车事件屡屡发生,造成了不可避免的人身伤亡和经济损失,针对这种情况,设计一种响应快,可靠性高且较为经济的汽车防撞报警系统势在必行,超声波测距法是最常见的一种距离测距方法,本文介绍的就是利用超声波测距法设计的一种汽车防撞报警系统。
论文的内容是基于ATC51单片机汽车防撞报警系统的设计,主要是利用超声波的特点和优势,将超声波测距系统和ATC51单片机结合于一体,设计出一种基于ATC51单片机的汽车防撞报警系统。
论文介绍了超声波测距原理和单片机原理,整个电路采用模块化设计,由单片机控制模块、超声波测距模块、LED显示模块、声光报警模块、自动刹车模块等组成。在此基础上设计了系统的总体方案,最后通过硬件和软件的联合调试实现了各个模块的功能。
关键词:单片机;超声波;ATC51
Abstract
With the rapid development of social economy, transportation prospers day by day and the number of cars rises sharply. Nowadays the situation of traffic congestion becomes more and more serious. The crash occurring frequently has caused personal injury and economic loss. In view of this situation, it is imperative to develop an automotive anti-collision warming system which has rapid responses, high reliability and economy. Ultrasonic wave ranging method is a common method to measure the distance. This paper realizes an automotive anti-collision warming system based on ultrasonic wave ranging method.
This paper based on ATC51 MCU mainly designs the automotive anti-collision warming system. According to the characteristic and the superiority of ultrasonic wave, combining ultrasonic wave ranging method with ATC51 MCU in one, we design the automotive anti-collision warming system due to ATC51 MCU.
This paper introduces the theories of ultrasonic wave ranging method and the elements of MCU. The whole circuit uses modular design, consisting of MCU control module, ultrasonic wave ranging module, LED display module, sound and light alarm module, auto-brake module and so on. On the basis, the system’s general scheme is designed, and then through the joint commissioning of hardware and software achieves the function of each module.
Keywords: MCU; ultrasonic wave; ATC51