遥控小车控制系统的设计(毕业论文).doc

本科毕业设计
遥控小车控制系统的设计
摘要
智能作为现代的新发明,是以后的发展方向,它可以按照预先设定的模式在一个环境里自动的运作,不需要人为的管理,可应用于科学勘探等等的用途。智能电动车就是其中的一个体现。智能遥控技术是指实现对被控目标的遥远控制,在工业控制、航空航天、家电领域应用广泛。而红外遥控也是一种无线、非接触控制技术,但是由于它具有抗干扰能力强,信息传输可靠,功耗低,成本低,易实现等显著优点,因此被诸多电子设备特别是家用电器广泛采用,并越来越多的应用到计算机系统中。
本文介绍了基于红外遥控技术的遥控小车控制系统,以STC89C52RC单片机为核心,利用红外遥控器来控制小车的运行方向和速度。系统的硬件部分主要由单片机最小系统模块、红外发射端的独立式键盘电路、红外发射电路、红外接收端的红外接收电路、控制电路等组成。软件部分使用C语言编程,由红外发射端的主程序、键盘扫描子程序、红外编码子程序、红外接收端的主程序、红外解码子程序、小车控制子程序等组成。当独立式键盘有按键按下时,单片机扫描并确认是哪一个键按下,并将键对应的操作编码后通过红外发射电路发射出去,红外接收电路接收到操作码后,单片机对其进行解码,并将码对应的操作交予控制电路,电机、指示灯开始工作,从而实现对小车的控制。
关键词:STC89C52RC单片机红外发射红外接收
Design of the Control System of Remote Control Car
Chen Youchao
(College of Engineering,South China Agricultural University,Guangzhou 510642,China)
Abstract:The intelligent is a direction of developing in the future that as a new modern invent. It can follow the automatic operation in an environment with the pre-set pattern, management without anybody; also can be applied to the use of scientific expiration. Intelligent car is one reflect of its features. Intelligent remote control technology means charged with the target remote control, it widely used in industrial control, aerospace, home appliances field. However the infrared remote control is also a wireless, non-contact control technology, but it has a strong anti-interference ability, reliable information transmission, low power consumption, cheaper easy to implement and other significant advantages. So it widely used in many electronic devices which especially household appliances and more and more applications used into puter system.
This paper introduces the remote control car control system based on infrared remote control technology, with STC89C52RC single-chip puter as the core, the use of infrared remote control to control the direction and speed of the car. The hardware part of the system is posed of single chip puter minimum system module, infrared launch the independent type keyboard circuit, infrared emission circuit, infrared