摘要：Electricity consumption monitoring to understand energy consumption status and patterns is the first step in reducing the electric cost for a house. Conventional electricity consumption monitoring systems usually rely on specially designed power measuring equipment such as a smart meter or sub-metering device. However, it is not easy to obtain enough information for energy monitoring because the limited number of measuring equipment can be installed due to their costs and privacy issues. Therefore, the status of devices could be usually inferred from limited information using the technology called non-intrusive appliance load monitoring. However, the limited information causes inaccuracy in estimating operation status of the devices. Many efforts have been performed to improve the estimation accuracy. Smart devices including smart appliances have been deployed recently to provide more advanced services at home. Network connectivity is one of the essential functions for the smart devices. When the operation information of those smart devices can be shared with energy monitoring devices, it can improve the energy consumption monitoring. In this paper, a hybrid approach is proposed to improve energy consumption status estimation. Devices' status information is shared via ubiquitous home networks in addition to the conventional energy consumption monitoring. This approach makes the energy consumption inference more simple and accurate for the rest of unknown devices.
