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Improving the accuracy of sensors in building automation systems

Authors:Dexter Arthur, University of Oxford, United Kingdom
Tan Huiling, University of Oxford, United Kingdom
Topic:4.4 Cost Oriented Automation
Session:Energy Saving through Plant and Building Automation
Keywords: sensor fusion, measurement errors, bias estimation, flow measurement, temperature measurement

Abstract

Improving the accuracy of the measurements in building automation systems without increasing operational costs is an essential step if the overall comfort and energy efficiency of buildings are to be improved. Data reconciliation and gross error elimination have emerged as key techniques for reducing both random noise and gross errors on the outputs of sensors. This paper focuses on using actuator control signals and simulation based on computational fluid dynamics to achieve the level of redundancy that is necessary for simultaneous data reconciliation and gross error elimination to be applied air-conditioning systems.