Calibration of sensors in sensor networks


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Kleiboer, Leon and Havinga, Paul (2005) Calibration of sensors in sensor networks. In: 10th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA, 19-22 September 2005, Catania, Italy (pp. II.519-II.526).

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Abstract:In this paper we present a new approach to calibrate sensors in sensor networks in an uncontrolled environment. The proposed algorithm makes a model ofthe distribution of the measured quantity. This model can be used to estimate and correct the bias of the sensor. The proposed, centralized calibration algorithm is a macro-calibration algorithm which tries to improve the system response as a whole, instead of optimizing the response of an individual sensor The algorithm decides, based on measurements to apply the calculated corrections or not. Testing shows that the algorithm can be applied on e.g. temperature sensors. Systematic measurement errors can be reduced. A combination of a few accurate (expensive) sensors, and a large amount of less accurate (cheap) sensors, can be used together with the algorithm in real life applications to improve the quality of the measurements
Item Type:Conference or Workshop Item
Copyright:© 2005 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:
Link to this item:http://purl.utwente.nl/publications/54747
Official URL:http://dx.doi.org/10.1109/ETFA.2005.1612720
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