Self-calibration system and method based on online monitoring of intelligent electric energy meter

The invention discloses a self-calibration system based on online monitoring of an intelligent electric energy meter. The self-calibration system comprises a sensor circuit, a sampling circuit, a reference circuit, a correction module, a metering module, a standard source and a self-checking module, electric energy is connected with the input of the sampling circuit after being sensed, detected and subjected to signal conditioning through the sensor circuit, the output of the sampling circuit is connected with one path of input of the metering module, and the output of the metering module is a metering result of the electric energy meter; and the invention further discloses a self-calibration method based on online monitoring of the intelligent electric energy meter. According to the invention, monitoring and real-time self-calibration of the intelligent electric energy meter can be realized, and the real-time detection precision of the intelligent electric energy meter can be effectively improved; and the sy