摘 要
目前，市场上的无线遥控系统每一时刻只能控制一台设备，且控制多台不能同时工作，当两个控制按键同时按下时会出现设备错误动作等问题，新设计一无线遥控系统，使其能输出8个控制信号；在控制信号发送端，可实现信号按键的优先判断；控制信号接收端可实现信号的自锁。
本设计是基于单片机实现的无线遥控系统。分为无线发射模块、无线接收模块、单片机控制部分。系统通过无线电实现控制信号的传递，单片机作为控制部件协调处理整个系统的工作，并产生相应的信号，对各种设备进行控制。选用STC89C52RC单片机，内部包含Flash存储器，在系统的开发过程中支持在线下载。而且该单片机控制方便，内部资源丰富。
采用315M无线收发系统实现控制信号的无线传输[1]，该无线传输系统抗干扰能力强，传输距离远，还可以实现保密通信；驱动电路简单，易于控制，成本低，能提供较大的功率，适应各种自动化控制设备的大功率应用。
本系统具有很强的通用性和实用性，可以将其用于各种电子电器设备中实现无线控制，也可以广泛应用于各种电器、机器人和各种自动化控制领域中的遥控装置。
关键词 无线收发系统 STC89C52RC
I
Abstract
This paper is relate to wireless telecontrol system that accomplished base on miccontroller. It is composed of radio transmit module, wireless receive module, miccontrollor control section and motor driven part .This system transfered the control signal depend on wireless radio ,The Singlechip is a control unit take charge of processing work of total system ,and brought relevant Direction signal and PWM signal, Which can control the electromotor performed positive running ,reversal running, speedup , slowdown .
The system has a strong versatility and practicality, can be used for a variety of electrical and electronic equipment in the wireless control can also be widely used in various electrical appliances, robots and various automatic control in the field of remote control devices.
The system uses a 315M wireless transceiver system for wireless transmission of control signals,the wireless transmission system and strong anti-interference, transmission distance, you can achieve secure communication; drive circuit is simple, easy to control, low cost,can provide greater power, to adapt to a diverse array of automated control equipment for high-power applications.
This system choose the STC89C52RC by way of controller, because it interior contain Flash memory , besides it offered download program on-line.
Key words wireless transmit and receive system STC89C52RC
II
目 录
摘 要 ............................................................................................................... I ABSTRACT ............................................................................................... II 第1章 绪 论 ................................................................................................ 1
1.1 引言 ................................................................................................ 1 1.2 国内外发展现状 ............................................................................. 1 1.3系统存在的问题 ............................................................................. 2 1.4 设计任务 ........................................................................................ 2 第2章 方案设计 .......................................................................................... 4
2.1 方案比较 ........................................................................................ 4
2.1.1无线发射与接收方案 ......................................................... 4 2.1.2 系统控制部分方案 ............................................................ 6 2.2 方案设计 ........................................................................................ 7
2.2.1 总体设计思路 .................................................................... 7 2.2.2 设计方案 ............................................................................ 7 第3章 硬件系统设计 .................................................................................. 8
3.1 无线发射和无线接收模块 ............................................................. 8
3.1.1 编码和解码原理 .............................................................. 8 3.1.2 无线发射、接收原理 ................................................... 11 3.1.3 电路设计 ........................................................................ 13 3.2 控制部分 ...................................................................................... 15
3.2.1 复位电路设计 ................................................................ 17 3.2.2 时钟电路设计 ................................................................ 18 3.2.3 驱动接口设计 ................................................................ 18 3.2.4 下载接口设计 ................................................................ 19 第4章 软件设计 ........................................................................................ 21
4.1开发软件介绍 ............................................................................... 21
III
基于单片机实现的无线遥控系统毕业论文
