Data center energy consumption online comparison monitoring method

The invention relates to the technical field of energy consumption monitoring, in particular to a data center energy consumption on-line comparison monitoring method, which performs on-line comparison to verify the accuracy of a metering instrument which cannot be detached through an instrument comparison principle and a data acquisition and software function module, replaces a traditional verification/calibration mode, and improves the accuracy of the metering instrument. The starting and ending functions are triggered by monitoring the change of the last numerical value of the metering instrument, so that the manual operation mode and errors caused by manual operation are avoided. The data center energy consumption on-line comparison monitoring system realizes convenient, accurate and intelligent detection of instrument accuracy, and guarantees the accuracy of PUE calculation. After the data center energy consumption online comparison monitoring system is developed to form a product, the implementation effi