Study on the Influence of Various Factors on Measurement of CCT for a Controlled Lighting System

Authors :: Catalin Daniel Galatanu
Cristian-Gyozo Haba
Laurent Canale
Liviu Breniuc
Centre National de la Recherche Scientifique (CNRS)
LAboratoire PLasma et Conversion d'Energie (LAPLACE)
Université Toulouse III - Paul Sabatier (UT3)
Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP)
Université Fédérale Toulouse Midi-Pyrénées
Source :: IAS, 2019 IEEE Industry Applications Society Annual Meeting, 2019 IEEE Industry Applications Society Annual Meeting, Sep 2019, Baltimore, United States. pp.1-5, ⟨10.1109/ias.2019.8912313⟩
Publication Year :: 2019
Publisher :: IEEE, 2019.
Abstract: A Correlated Color Temperature (CCT) measurement and adjustment system based on a microcontroller, an RGBC sensor and a commercially available programmable lighting section was designed as a building block for developing a more complex intelligent lighting system. Because measurement of the CCT can be affected by different errors, in this paper the main sources of error are identified and discussed. CCT calculation relationships based on the RGBC components given by the RGBC sensor, the influence of the illumination level, the influence of the sensor position and the influence of distance between sensor and lighting elements are identified as the main error sources and considerations regarding their decreasing are given.

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