Electric energy meter error verification method based on cloud computing

The invention relates to an electric energy meter error checking method based on cloud computing, and the method comprises the steps: storing electric energy meter data of an electric energy meter to construct a database, the electric energy meter data comprising a precision grade, a power utilization parameter sequence and an electric energy increment; dividing the database into sub-databases according to the precision levels, and clustering the power utilization parameter sequences in the sub-databases to obtain clusters of all the precision levels; collecting real-time data of the to-be-tested electric energy meter; calculating the sub-error of the target precision grade based on the clustering cluster of the target precision grade and the real-time data, and integrating all the sub-errors of the target precision grade to obtain a real-time error, the target precision grade being equal to or greater than the precision grade of the to-be-measured electric energy meter; and comparing the real-time error with