目 录
1 引言 ...............................................................................................................................1
2 方案论证与发展趋势 ...................................................................................................3
2.1 方案论证 .............................................................................................................3
2.2 技术指标 .............................................................................................................6
2.3 红外遥控系统的发展趋势 .................................................................................6
3 红外遥控系统的硬件设计 ...........................................................................................8
3.1 红外收发电路的设计 ........................................................................................8
3.1.1 芯片介绍 ..................................................................................................8
3.1.2 红外发射电路 ........................................................................................12
3.1.3 红外接收电路 ........................................................................................12
3.2 直流稳压电源的设计 ......................................................................................13
3.2.1 单相桥式整流电路 ................................................................................13
3.2.2 滤波电路 ...............................................................................................14
3.2.3 稳压电路 ...............................................................................................15
3.3 控制部分的设计 ..............................................................................................15
3.3.1 可控硅原理 ...........................................................................................15
3.3.2 光耦原理与作用 ...................................................................................18
4 红外遥控系统的软件设计 .........................................................................................20
4.1 系统功能实现办法 ...........................................................................................20
4.1.1 遥控码的编码格式 ................................................................................20
4.1.2 遥控码的发射 ........................................................................................20
4.1.3 数码帧的接收处理 ................................................................................20
4.2 遥控发射及接收控制流程图 ...........................................................................21
4.2.1 遥控发射部分 ........................................................................................21
4.2.2 遥控接收部分 ........................................................................................22
4.3 软件设计 ...........................................................................................................25
4.3.1 发射编码的软件设计 ............................................................................25
4.3.2 接收编码的软件设计 ............................................................................26
5 调试 .............................................................................................................................27
