Design of Temperature and Humidity Control System in Agricultural Greenhouse based on Single Neuron PID

Abstract

Aiming at the defects such as low measurement accuracy, low stability and high cost in the temperature and humidity detection system of greenhouse, a temperature and humidity detection system based on single neuron PID control was designed.The single-neuron PID system controller was used to build the system controller, and the DHT11 sensor, LCD1602 display, and STC89C52 single chip microcomputer were used to build the underlying hardware.MATLAB on the simulation, in this foundation for hardware debugging.The experimental results show that the system is easy to set, stable and accurate, and is controlled with single neuron PID. The system output is stable and robust, which can meet the temperature and humidity control process of large lag and stable output.