The embodiment of the invention proposes a power-off and power-on active judgment method, and belongs to the field of
power equipment. The method comprises a power-off judgment method and a power-on judgment method, and specifically comprises the steps: obtaining a power-off
record set from a
database, and extracting power-
off time in the power-off
record; obtaining the difference between the power-
off time and the
system time, determining whether there is a need to detect a power-off event of an
electric energy meter or not according to the difference, and carrying out the subsequent
processing according to the detection result; obtaining the accurate power-off and power-on information through combining the
record stored in the
database with multiple presetting conditions, thereby solving problems of power-off and power-on alarm leakage and wrong alarm of a conventional terminal. A
terminal equipment maintainer carries out the maintenance and change of a terminal with a fault timely according to the information, thereby guaranteeing the normal operation of
power equipment, reducing the normal operation of the
power equipment, reducing the probability of a power fault, and improving the user experience.