A large residential area (500000 square meters) in Hebei Province has installed more than 400 sets of EVE2100 electronic intelligent valves in the heat exchange station and on the building risers. The intelligent valves use their own pressure, temperature, temperature difference, pressure difference, flow, heat and other sensor data to upload to the upper computer for monitoring, and combine big data analysis to remotely give control commands. The valves combine AI technology with their own PID self control, and combine edge computing to reduce comprehensive computing power, Make the hydraulic balance between the heat exchange station and the building pipe network, directly reduce the energy consumption such as gas in the heating season, improve the satisfaction of heating users, and directly reach a good balance between the heating company and users.