Patent ID: 11876939
Assignee: TOSHIBA TEC KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 0:
1. A power management apparatus for managing a power supply to an electrical device installed in a room, the power management apparatus comprising:
one or more interface circuits connectable to the electrical device and a plurality of different types of sensors installed in the room separately from the electrical device;
a memory that stores a table indicating a plurality of combinations of states of the sensors, wherein each of the states is one of a high level, a low level, a transition from the high level to the low level, and a transition from the low level to the high level; and
a processor configured to:
generate first log data of the states of the sensors in a plurality of periods of a day,
acquire, from the electrical device, second log data of operational states of the electrical device in the periods, each of the operational states being one of an ON state, an OFF state, and a power saving state,
generate usage data that associates each of the periods with one of the operational states of the electrical device and one of the combinations indicated by the table stored in the memory,
using the usage data, determine an expected operational state of the electrical device corresponding to a combination of current states of the sensors and a current period, and
control the power supply based on the expected operational state and a current operational state of the electrical device.