Daylight estimation in a faulty light sensor system for lighting control

David Caicedo, Ashish Pandharipande

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)


We consider the problem of daylight estimation in a daylight-adaptive lighting system. In such a lighting system, the dimming levels of light sources are adapted to changing daylight such that a desired illuminance distribution is achieved at the workspace plane. Each light source has an associated light sensor at the ceiling that measures the net illuminance, due to contributing light sources and daylight, for a given sensor opening angle. We present a daylight estimation method under the scenario of a few light sensor failures, based on fusion of illuminance measurements at functioning light sensors. The proposed fusion method is used to estimate daylight illuminance values at the zones corresponding to failed light sensors and is a solution of a quadratic programming optimization problem. The efficacy of the solution is shown using photometric numerical data.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Information Fusion, FUSION 2013
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Print)9786058631113
Publication statusPublished - 21 Oct 2013
Externally publishedYes
Event16th International Conference of Information Fusion, FUSION 2013 - Istanbul, Turkey
Duration: 9 Jul 201312 Jul 2013


Conference16th International Conference of Information Fusion, FUSION 2013


  • Illuminance estimation
  • interpolation
  • light sensor fusion
  • lighting control


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