Patent ID: 9537317
Date: 2017-01-03
CPC Classifications: G05B,H02J,H04L,Y02B,Y04S

Claim:
1. A power management apparatus, comprising: a storage to store information of power rate levels corresponding to a plurality of power rates and display information respectively indicating the power rate levels; a communicator to receive a power rate for each hour of a given time period starting from a current time; a controller to identify a current power rate and a future power rate based on the received power rate for each hour, identify a power rate level and display information corresponding to each of the identified current power rate and the identified future power rate on basis of the information stored in the storage; a control panel including a clock window, wherein the clock window displays the given time period and the current time, and displays the identified display information on each time region of an inner region of the clock window, and wherein: the display information includes at least one of color information and icon information, the power management apparatus further comprises an input to receive one of the stored power rate levels and the respective display information for the received power rate level, when display information corresponding to a power rate level is received through the input, the controller changes the display information corresponding to the received power rate level among the stored power rate levels to the received display information, and when a display command for displaying at least one of the stored power rate levels is received through the input, the controller confirms an hour corresponding to the at least one power rate level, and controls to display the display information corresponding to the at least one power rate level in a region of the confirmed hour on the clock window, the controller determines a next power rate among the identified future power rates, and a next power rate level corresponding to the next power rate, and calculates remaining time until the current power rate level changes to the next power rate level, and the control panel further includes an information window, which displays the current power rate level, the current power rate, the next power rate level, the next power rate, and the remaining time.