Networked and Embedded Systems Laboratory

Tryear

Trmonth

Trnumber

Title

Abstract

We present Spotlight, a novel application that monitors electrical 
energy consumption at the individual level. Obtaining reports of 
energy consumption at this fine granularity allows identifying new 
areas for energy saving and acting upon it in real-time. Spotlight 
views appliances as rendering a service to a user and the energy 
consumption associated with the appliance as a cost for the service. 
Each participating appliance is specified a service range, a physical 
vicinity from the appliance within which the user benefits from the 
service. Using radio receive strength from user-wearable active RFID 
tags, an appliance is able to determine the users in its service 
range. In order to make these measurements, each appliance is 
instrumented with a power meter and an active RFID tag reader. The 
current implementation of Spotlight uses a COTS power meter and MicaZ 
motes as active RFID tags and readers. 
The Spotlight system is deployed and tested in an experimental setup 
with various appliances and users. We evaluate multiple schemes of 
accounting energy consumption based on an individual's movement 
profile and the appliances' power profile. Our preliminary results 
show how the system could detect wasted energy and we discuss 
interesting individual behavior that could be interpreted for various 
energy optimizations.

Filename

File

Urlpdfpaper

Urlsrcpaper

Urlpdfpresentation

Urlsrcpresentation

Urlavmedia

Urldoi

Urlpublisher

Urlgooglescholar

Urlciteseer

Pubin

Pubvol

Pubnum

Pubnum end

Pubpagefirst

Pubpagelast

Pubpagecount

Pubdate

Pubdate end

Pubplace

Publisher

Ispublic

Islabdocument

Miscattributes

Document category

Main research area

Editing document