Patent ID: 8275561
Filing Date: 2012-09-25
Classification: H02J,Y02B,Y04S

Abstract:
1. A method comprising: receiving a set of transition reports, each transition report of the set of transition reports corresponding to a different respective transition each of a respective electrical device of a plurality of electrical devices between an off state and an on state, each transition report including a plurality of transition parameters characterizing a respective condition of a common alternating current service for variously powering each of the plurality of electrical devices, wherein each of the plurality of transition parameters of the set of transition reports includes a change in active power parameter value; with a processor, identifying from the set of transition reports a cluster of on-transition reports, each on-transition report of the cluster describing a transition of a respective one of the plurality of electrical devices to an on state, the identifying the cluster including: based on the identified cluster, creating in a memory device a data structure characterizing a first device of the plurality of electrical devices, said data structure comprising a plurality of on-transition characterization parameters, wherein values of said on-transition characterization parameters are determined based on transition parameters of the cluster of on-transition reports; identifying one of the set of transition reports as being an off-transition report associated with the first device; based on the identified off-transition report, determining one or more values for a plurality of off-transition characterization parameters of the data structure; and providing the data structure for an automatic determining of whether a first transition report subsequent to the set of transition reports corresponds to the first device.