Design of Control System for Cultural Relics Testing Room Based on STM32

Abstract This paper designs a control system for a cultural relic test chamber based on STM32. The system uses the STM32 processor as the underlying main control of oxygen concentration and humidity and uses an industrial all-in-one machine as the bridge to exchange the information between the cloud server and the bottom master controller. The oxygen concentration, humidity and temperature data of the test chamber can be stored on the server in real-time, and the alarm messages are sent through the cloud SMS platform. The results reveal that the oxygen concentration in the test chamber could be adjusted continuously between 0.6% ~ 10% VOL and the relative humidity could be adjusted continuously within 45% ~ 55% RH, and it can keep stable near the set value. The system can meet the requirements of oxygen concentration and humidity for most cultural relics preservation and can also provide a settable constant oxygen concentration and humidity environment for the related research of anoxic treatment and modified atmosphere technology.