Virtual Occupancy Sensing: Using Smart Meters to Indicate Your Presence

Smart Environments for Occupancy Sensing and Services

The term smart environment refers to a physical space enriched with sensors and computational entities that are seamlessly and invisibly interwoven. A challenge in smart environments is to identify the location of users and physical objects. A smart environment provides location-dependent services by utilizing obtained locations. In many cases, estimating location depends on received signal str...

An Advanced State Estimation Method Using Virtual Meters

-  Power system state estimation is a central component in energy management systems of power system. The goal of state estimation is to determine the system status and power flow of transmission lines. This paper presents an advanced state estimation algorithm based on weighted least square (WLS) criteria by introducing virtual meters. For each bus of network, except slack bus, a virtual meter...

Using Smart Meters to Estimate Low Voltage Losses

Losses on low voltage networks are often substantial. For example, in the UK they have been estimated as being 4% of the energy supplied by low voltage networks. However, the breakdown of the losses to individual conductors and their split over time are poorly understood as generally only the peak demands and average loads over several months have been recorded. The introduction of domestic sma...

Fusing Sensors for Occupancy Sensing in Smart Buildings

Smart Energy Consumption Feedback - Connecting Smartphones to Smart Meters

tinuously increasing and now accounts for about one third of the total electrical energy produced in Europe. Many individuals would be interested in saving energy (and thus also carbon dioxide as well as money), but they lack information on their consumption. Indeed, feedback on household electricity usage is typically only provided by monthly (or even annual) utility bills and therefore remain...