Tailored for smart construction sites, it is used for smart and safe electricity use on construction sites. Through Internet of Things technology, voltage, current, temperature, and electricity are collected and uploaded to the cloud. By entering a mobile mini program, these data can be intuitively viewed. With just one click, the switch can be controlled to open and close, and comprehensive supervision of electricity usage can be carried out for timely remote guidance and management. It can also be connected to the management platform of the local emergency management department.