1、- I - 摘 要 89C51 单片机是一款八位单片机,他的易用性和多功能性受到了广大使用者的好 评。本系统以设计题目的要求为目的,采用 89C51 单片机为控制核心,利用超声波检 测道路上的障碍,控制电动小汽车的自动避障,快慢速行驶,以及自动停车,并可以 自动记录时间、里程和速度,自动寻迹和寻光功能。整个系统的电路结构简单,可靠 性能高。 采用的技术主要有: (1) 通过编程来控制小车的速度; (2) 传感器的有效应用; (3) 新型显示芯片的采用; 关键词关键词 89C51 单片机、光电检测器、PWM 调速、电动小车 - II - Design and create an intellig
2、ence Design and create an intelligence electricity motive small carelectricity motive small car Abstract 89C51 is a 8 bit single chip computer.Its easily useing and multi-function suffer large users. This article introduce the CCUT graduation design with the 89C51 single chip copmuter.This design co
3、mbines with scientific research object. This system regard the request of the topic, adopting 89C51 for controling core,super sonic sensor for test the hinder.It can run in a high and a low speed or stop automatically.It also can record the time ,distance and the speed or searching light and mark au
4、tomatically The electric circuit construction of whole system is simple, the function is dependable. Experiment test result satisfy the request, this text emphasizes introduced the hardware system designs and the result analyse. The adoption of technique as: (1) Reduce the speed by program the engine; (2) efficient application of the sensor; (3) The adoption of the new display chip. Keywords 89C51 single chip computer、light electricity detector、PWM speed adjusting - III - 目 录 1 引 言 . 1 2 系统的