Aiming at the problems of difficult remote control of oxygenator and cumbersome water quality delivery in aquaculture, a remote control system of oxygenator with water quality monitoring is developed based on WSN and IOT technology. The system consists of monitoring equipment and remote control applet. The dissolved oxygen, pH sensors, environmental monitoring transmitters and other equipment deployed in the field are collected by the microprocessor built in 4G-DTU, and the wireless network communication method is used to get rid of the short communication distance of the traditional monitoring system; the applet has the functions of real-time monitoring of water quality, querying historical data, remote start and stop of the oxygenator. In order to verify the practicality of the system, test nodes were arranged in the actual water, and the results showed that all the indicators met the requirements, the response delay of remote start/stop of the equipment was less than 100ms, the accuracy of pH measurement reached 0.02, the accuracy of dissolved oxygen control was within ±0.4mg/L, the accuracy of temperature measurement reached 0.5℃, and the accuracy of air pressure measurement reached 0.1kPa, which could meet the needs of aquaculture. It proves that the studied system has practical application prospects.
