Intelligent control and implementation of a new type constant temperature and humidity box

This paper focuses on the hardware and software design method of a new type of high efficient temperature and humidity testing cabinet. As the hardware core is based on the STC12C5620AD MCU, the entire hardware system is simpler and more reliable. By using the box inside the environmental cycle and using adjust channel of the atmospheric environment, the system efficiency is greatly improved, while energy-saving effect is remarkable. By adopting expert PID control algorithm and using hardware and software compensation measures, the system dynamic and static quality and control precision is further improved. Furthermore, the use of intelligent terminal as input and output device, which is simpler to operate, meets the different needs of consumers.