NDLI: A sensor-utility-network method for estimation of occupancy in buildings

Content Provider	IEEE Xplore Digital Library
Author	Meyn, S. Surana, A. Yiqing Lin Oggianu, S.M. Narayanan, S. Frewen, T.A.
Copyright Year	2009
Description	Author affiliation: Electrical and Comp. Eng. and the Coordinated Sciences Laboratory, University of Illinois at Urbana-Champaign, USA (Meyn, S.) \|\| United Technologies Research Center, 411 Silver Lane, East Hartford, CT., USA (Surana, A.; Yiqing Lin; Oggianu, S.M.; Narayanan, S.; Frewen, T.A.)
Abstract	We introduce the sensor-utility-network (SUN) method for occupancy estimation in buildings. Based on inputs from a variety of sensor measurements, along with historical data regarding building utilization, the SUN estimator produces occupancy estimates through the solution of a receding-horizon convex optimization problem. State-of-the-art on-line occupancy algorithms rely on indirect measurements, such as CO2 levels, or people counting sensors which are subject to significant errors and cost. The newly proposed method was evaluated via experiments in an office building environment. Estimation accuracy is shown to improve significantly when all available data is incorporated in the estimator. In particular, it is found that the average estimation error at the building level is reduced from 70% to 11% using the SUN estimator, when compared to the naive approach that relies solely on flow measurements.
Starting Page	1494
Ending Page	1500
File Size	1560023
Page Count	7
File Format	PDF
ISBN	9781424438716
ISSN	01912216
DOI	10.1109/CDC.2009.5400442
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sun Buildings Gas detectors Infrared sensors Sensor phenomena and characterization Hidden Markov models Fluid flow measurement Ventilation Acoustic sensors Smoothing methods
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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