基于单片机的遥控风扇的原理与制作毕业论文.doc

毕业设计报告(论文) 题目: 基于单片机的 遥控风扇的原理与制作 所属系 X系 专 业 X 学 号 X 姓 名 X 指导教师 X 起讫日期 2014.9.20至2014.12.15 设计地点 X  基于单片机的遥控风扇的原理与制作 摘 要 作为传统的家用电器，随着空调的普及，电风扇的市场地位受到了巨大的冲击，传统的开关、调速功能已经不能满足市场的需求。人们希望电风扇在体积小，使用方便等的基础上，能够拥有更多的功能，而红外遥控的广泛应用及单片机技术的成熟则使得红外遥控系统成为了电风扇的发展趋势。 红外线遥控是目前使用最广泛的一种通信和遥控手段，而红外遥控风扇已经过市场反响很好，并有专门的芯片作为主控芯片，加以扩展实现红外遥控电风扇系统，并以指示灯显示档位，具有开关及多档位等功能。经过多次的测试与电路调整，系统各项功能均能正常实现。 本系统以51系列单片机为核心，旨在开发一种新型遥控电风扇控制系统，该系统由遥控发射模块，风扇接收控制模块组成，使系统可以以遥控或手动的方式对系统进行控制。遥控发射模块主要以AT89C2051单片机核心，外加键盘，和红外信号整形与发射电路一起组成遥控器，键盘作入，单片机主要完成信号的编码及信号与载波的调制，调制信号经发射末端整形放大发射出。接收部分主要以AT89C51为主控中心，配以键盘，红外接收模块，电机驱动模块，液晶显示模块，及相应指示灯；红外接收模块，键盘，液晶显示模块，指示灯共同完成人机交互功能；单片机主控中心接收各种输入，驱动液晶，指示灯，控制电机驱动模块来调节电机转速。电机主要采用直接PWM无级调速。 关键词：遥控电风扇控制系统；PWM无级调速；红外发射；红外接收。 Abstract As a traditional household electrical appliances, with the popularity of air conditioning, electric fan market position by the huge impact, the traditional switch, speed control function cannot meet the demand of the market. People want to fan in small volume, convenient use, etc, on the basis of to have more features, and the wide application of infrared remote control and single chip microcomputer technology maturity makes the infrared remote control system become the development trend of the electric fan.Infrared remote control is currently the most widely used a communication and remote control means, and the infrared remote control fan has been the market reaction is very good, and have special chip as the main control chip, extending to realize infrared remote control electric fan system, and with indicator light shows gear, with functions of switch and multi-position. After a lot of testing and adjusting circuit, the system functions are implemented properly. The system is of 51 series single-chip microcomputer as the core, to develop a new type of remote control electric control system, the system fired by remote control module, the fan control mo