Patent ID: 9699529
Date: 2017-07-04
CPC Classifications: H04Q

Claim:
1. A computer-implemented method for determining states of devices in a building, the method comprising: accessing stored information about devices in the building, wherein the devices in the building comprise a first device and a second device, and wherein the information about the devices comprises a state of the first device and a state of the second device; obtaining a power monitoring signal by measuring an electrical property of a power line in the building, wherein the power line provides power to the devices in the building; determining the state of the first device by (1) processing a first power event in the power monitoring signal with a plurality of power models to generate a score for each power model of the plurality of power models, and (2) selecting a state of the first device from a plurality of possible states using the scores; causing the state of the first device to be updated in the stored information using the selected state; receiving a first broadcast network packet, wherein the first broadcast network packet was transmitted by the second device; determining, using information in the first broadcast network packet, that the first broadcast network packet was sent by the second device; selecting, using the information in the first broadcast network packet, the state of the second device from a plurality of possible states for the second device; and causing the state of the second device to be updated in the stored information using the selected state.