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 MCU.The 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 for the infrared remote control, press the corresponding function button on the remote control, you can control the fan. The third type of work for the mobile terminal APP control, through the mobile client to achieve automatic fan start and stop, rotation direction, change the fan speed and so on.
Key words : STC89C51RC Single-Chip; Intelligent Fan; Human Infrared Sensor Module; Keil Uvision ;
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