基于单片机的智能风扇控制综合系统.doc

基于51单片机智能风扇控制系统设计和实现
摘要：伴随气温逐步上升，风扇需求量也逐步扩大。传统风扇不能依据外界温度改变对风扇转速快慢进行调整，也不能对风扇开关是否进行自动控制，这将会损耗大量电力资源。针对这些问题，开发设计了智能风扇控制系统。
该系统以STC89C51RC单片机最小系统为关键，利用DS18B20温度采集模块，LCD 1602显示器、L298N电机驱动模块、HC-SR501人体感应模块、舵机控制模块、ESP8266 WIFI控制模块组成智能风扇控制系统。当有些人进入室内, HC-SR501人体感应模块会监测到有些人出现,同时DS18B20温度采集模块将采集到温度和系统开始设置阈值做比较,并将采集到温度数据显示在LCD 16 -02显示器上。当室温高于所设置温度且有些人存在情况下,风扇将会自动吹风；当温度低于所设置温度时风扇仍保持关闭状态。该系统采取了三种工作方法，第一个工作方法为按键控制，从左至右按键功效依次为摇摆、红外、定温、定时。第二种工作方法为红外遥控器控制，在遥控器上按下对应功效按键，即可控制风扇。第三种工作方法为手机终端APP控制，经过手机用户端实现风扇自动开启和停止，旋转方向，改变风扇转速等。
关键词：STC89C51RC单片机；智能风扇；人体感应；keil Uvision；
Intelligent Fan Control System Based on 51 Single Chip Design and Implementation
Abstract: With the gradual rise in temperature, the demand for fans has gradually expanded. However, the traditional fan can not adjust the speed of the fan according to the change of the outside temperature, and can not control the fan switch automatically. In response to this problem, we will develop intelligent control system of the fan.
The system is based on the minimum system of the STC89C51RC intelligent fan control system is composed of DS18B20 temperature acquisition module, LCD 1602 display, L298N motor drive module, HC-SR501 human body induction module, steering control module and ESP8266 WIFI control module. When the person enters the room, the human body infrared sensor module will detect people, while the DS18B20 temperature acquisition module will collect the temperature and the system begins to set the threshold to compare, and the collected temperature data is displayed on the LCD 1602 display. When the room temperature is higher than the set temperature and someone exists, the fan will automatically blow; when the temperature is lower than the set temperature ,the fan will still turn off . The system takes three kinds of work, the first work for the key control, from left to right button function in order of swing, infrared, fixed temperature and timing. The second mode of operation