To improve the automation and refinement level of chemical reagent management

a chemical reagent management scheme based on ultra high frequency radio frequency identification（UHF RFID） technology is proposed.The system consists of an online management platform and hardware control part.An Android industrial computer and STM32 embedded control modules form the hardware control part

and they are connected by RS—485 interface.Embedded control module directly controls hardware such as reagent storage cabinet door lock.SHT20 and TGS2602 sensor modules collect the temperature

humidity and concentration respectively.The UHF RFID read/write module enables reagent access record tracking.The system solves the problems of reagent storage disorder and lack of control methods for dangerous chemicals and achieves precise control of chemical reagents.