文档介绍：51单片机红外收发器设计
摘要
随着科学技术的发展,单片机因其高可靠性和高性价比,在智能化家用电器、仪器仪表等诸多领域内得到了极为广泛的应用。当前单片机对家用电器控制呈现出外型简单化、功能多样化、性能优越化的发展趋向。红外遥控器具用使用方便、功耗低、抗干扰能力强的特点,因此它的应用前景是不可估量。
本课题以延伸红外无线遥控技术为目的,提出了一种红外遥控器集中控制的方案,核心是设计出一个无线红外多路遥控发射/接收系统。本设计以红外线作为传递信息的载体,可对8个受控对象的工作状态进行短距离无线控制,适用于工业、医疗、家用电器等设备的开启或关闭遥控,也可以对一种设备的八种工作状态同步进行控制,或对2种设备的4种工作状态同时控制。
该系统可实现的具体参数如下:
1. 遥控距离不小于5m,即红外遥控发射机与红外接收机之间的距离不小于5m; 2. 遥控路数为8路,即可对8个受控设备同时进行开关控制;
3. 工作频率为38KHz,即红外发射和接收的载频为38KHz;
4. 接收端可显示受控状态。
关键词: 单片机红外数据发送与接收八路LED开关电路键盘控制
51 MCU-based infrared encoder and decoder
ABSTRACT
With the development of science and technology, SCM because of its high reliability and cost-effective, in the intelligent home appliances, instrumentation and many other areas has been very widely used. Control of the current SCM appliances shown on the simplistic appearance, diversification of function, the development trend of superior performance. Infrared remote control apparatus with easy to use, low power consumption, anti-jamming features, so its prospects are immeasurable.
The topics to extend the infrared wireless remote control technology for the purpose, a centralized control infrared remote control program, the core is to design a wireless infrared remote control multiple transmit / receive system. The design of an infrared transmission of information as a carrier of controlled object can work 8 state short-range wireless control for industrial, medical, home appliances and other equipment on or off remotely, it can be a device eight kind of working state synchronization control, or two kinds of equipment working state of simultaneous control of 4.
The system can achieve the specific parameters are as follows:
1. Remote control distance is not less than 5m, the infrared remote control transmitter and the distance between the infrared receiver is not less than 5m;
2. Remote control for the 8 large ones, can be controlled on the eight switch control device at the same time;
3. Working frequency is 38KHz, the infrared