STC90C51RD+单片机红外传感系统设计
关键词: 红外编解码；LED 控制；串行输出；智能灯光系统
Infrared sensor system design
Abstract：Infrared sensor system design in this paper were designed to simulate intelligent lighting system control mode, the actual use of intelligent lighting system consists of an infrared sensor modules, single chip decoder control module and multiple light source. Therefore, this thesis based on MCU Development Board and infrared sensing module combines infrared control LED lamp group, eventually able to simulate multiple independent infrared lighting control in indoor environment. Transmitter module using WD6122 as the remote control encoder, and uses the SM0038 module receives. IR decoding using STC90C51RD+ single-chip, based on the monolithic integrated circuit programming for software decoding. Outputs with 8 LED serial output connection, infrared signal is decoded and independent control of single LED and LED only a single remote control button control without disturbing. Add relay module to simulate actual strong electric environment. This task under this project completed the expected scenario, designed and implemented a system of hardware and complete system software program to write and debug. Test results show that the infrared sensor modules meet the design requirements.
Key words: infrared encode and decode; LED control, serial output; intelligent lighting system
目录
1 绪论 . 1
1.1 课题背景 1
1.2 红外传感技术的研究进展 . 2
1.3单片机相关概念 5
1.3.1串行输出介绍 . 5
1.4 本课题的研究思路 5
1.4.1 研究目标 .. 5
1.4.2 研究内容 .. 6
1.4.3 研究难点 . 6
1.5 论文主要工作 . 6
2 红外传感系统方案设计 8
2,1 系统总框图 . 8
2.2 总体设计原则 .. 9
3 红外传感系统发射编码设计 . 10
3.1 WD6122芯片介绍 . 10
3.2 结构框图 . 10
3.3 键盘输入矩阵和管脚 . 11
3.4 编码方式及输出波形 . 12
4 接收及控制电路设计 . 14
4.1 红外接收电路设计 14
4.2 MCU及控制电路设计 . 15
4.3 LED灯组电路设计 17
4.4 继电器电路设计 . 17
5 系统软件与程序设计 . 19
5.1软件设计思路 . 19
5.2 头文件与声明编程要点 .. 20
5.3 主程序设计 22
5.4 子程序设计 22
5.4.1 红外解码程序设计 .. 22
5.4.2 LED与继电器控制程序设计 23
6 红外传感系统的调试与结论 . 27
6.1 遥控器与单片机开发板 . 27
6.2 程序的编写与烧录 28
6.3 系统调试和测试结果 . 29
6.3.1 LED调试 29