Illumination gain estimation and tracking in a distributed lighting control system

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6 Citaten (Scopus)

Samenvatting

We consider a distributed lighting control system with multiple networked luminaires, each equipped with a light and presence sensor, and a local controller. Using local sensor inputs and information exchange with limited neighboring controllers, each local controller determines the optimum dimming level of its luminaire so that the lighting power consumption is minimized. This is done under net illumination constraints specified in terms of light sensor set-points. The underlying optimization problem requires knowledge of the illumination gains, i.e. The contributions of luminaire light output to the light sensors. Reflectance changes, e.g. due to occupancy changes or object movements in the environment can change the illumination gains over time, thus affecting the achieved illumination. We address the problem of illumination gain estimation and tracking in a lighting system with distributed asynchronous controllers. A Euclidean projection of the best linear unbiased estimator on the non-negative orthant is used as an initial illumination gain estimate and bounds on mean-squared error performance are obtained. A recursive calibration mechanism to track gain changes is proposed. Illumination performance improvements are shown by numerical results using photometric data.

Originele taal-2Engels
Titel2014 IEEE Conference on Control Applications, CCA 2014
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's1650-1655
Aantal pagina's6
ISBN van elektronische versie978-1-4799-7409-2
DOI's
StatusGepubliceerd - 1 jan 2014
Evenement2014 IEEE Conference on Control Applications (CCA 2014) - Juan Les Antibes, Frankrijk
Duur: 8 okt 201410 okt 2014

Congres

Congres2014 IEEE Conference on Control Applications (CCA 2014)
Verkorte titelCCA 2014
LandFrankrijk
StadJuan Les Antibes
Periode8/10/1410/10/14
AnderIEEE Conference on Control Applications

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  • Citeer dit

    Caicedo, D., Pandharipande, A., & Willems, F. M. J. (2014). Illumination gain estimation and tracking in a distributed lighting control system. In 2014 IEEE Conference on Control Applications, CCA 2014 (blz. 1650-1655). [6981549] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/CCA.2014.6981549