Intelligent Air Control System Based on Single-Chip Microcomputer

Abstract This article designs an intelligent air control system and regard AT89C52 MCU as control core. We can set the ideal temperature and ideal humidity through the keys. Collect signal by a variety of sensors and transmit signals to the single-chip microcomputer. The most important thing is to use PID algorithm to control. Specifically, combined with PID algorithm, the single-chip microcomputer accurately control the output of the relay. At last, the relay drives the corresponding load on the purpose of changing the indoor temperature, humidity, gas quality. Besides, there are an alarming system by sound and light.