Patent ID: 9703357
Date: 2017-07-11
CPC Classifications: G06F,H04W,Y02D

Claim:
1. A power management method, comprising: obtaining, by a power management apparatus, a power demand value of each module and a rated output power of each power supply unit (PSU) in a communication equipment; calculating, by the power management apparatus, the obtained power demand value of each module to acquire a total power demand value of the communication equipment; adjusting, by the power management apparatus and according to the total power demand value of the communication equipment and the obtained rated output power of each PSU, a current number of the PSUs actually turned on in the communication equipment; detecting, by the power management apparatus, a change of an in-position signal or a failure signal of a plurality of PSUs; determining, by the power management apparatus, whether each PSU of the a plurality of PSUs is in a working state prior to detecting the change of the in-position signal or the failure signal, wherein a first number of PSUs are two or more PSUs in a working state prior to detecting the change of the in-position signal or the failure signal; and turning on, by the power management apparatus, a number of PSUs, equal to the first number of PSUs, from an off state or standby state to an on state.