IoT-based remote valve monitoring and control system

Valve, as an important part of pipeline control system, is gradually developing towards the goal of electric and intelligent with the development of technology and the trend of the Internet of Things. In this case, the traditional way of manually supervising the valves and pipes appears to be costly and inefficient and thus is no longer applicable. Therefore, this paper proposes a new way to monitor the status of the valves by developing a remote monitoring and control system for electric valves based on Internet of Things. The system is powered by the wind and solar hybrid electricity generation module and managed by STM32F429. The status data of the valve and related environmental parameters detected by field sensors can be collected by MCU through RS485 and UART and are then encrypted and sent to the remote server through a 4G module. To ensure the security of data transmission, a hybrid encryption algorithm based on ECC and AES is implemented and verified in the embedded system, which uses AES to shorten the encryption time of large amount of plaintext and uses ECC to encrypt the AES key to solve the security shortcomings of AES, thus increasing the security of data transmission.