Three-phase electrical parameter monitoring and energy metering system based on Internet-of-things

The invention provides a three-phase electric parameter monitoring and electric energy metering system based on the Internet-of-things, which comprises a main control processor, an electric energy acquisition module, an I/O port operation module, a display module and a network interface module, wherein the main control processor is electrically connected to the electric energy acquisition module,an I/O port operation module, a display module and a network interface module. An Ethernet controller is integrated into that main control processor. The main control processor carries out Ethernet communication connection with an external device based on an Ethernet control and that network interface module. The electric energy acquisition module is used to collect three-phase electrical parameters and carry out harmonic analysis, and the acquisition results of three-phase electrical parameters and harmonic analysis results are transmitted to the display module or external equipment for display based on the main cont