A low-cost LDR-based angular sky-luminance measurement device is proposed as a centralized sensor for predicting real-time illuminance distribution in building interiors over a wide district, for application in centralized light control.
Maskarenj, M., Banerjee, R., & Ghosh, P. C. (2018). A low cost sky-scanning device as centralized sensor for realtime light control in building management application. Optics and Photonics for Energy and the Environment. Published. Optics and Photonics for Energy and the Environment, Singapore. https://doi.org/10.1364/ee.2018.et3a.2 (Original work published 2018)