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Original title:
The Colour Sensor for Regulation of Tunable White Luminaires
Translated title: Barevný senzor pro regulaci nastavitelných bílých svítidel
Authors: Paus, Anton ; Hronec, Pavol
Document type: Papers
Language: eng
Publisher: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií
Abstract: The quality of light is very important factor for human well-being. Except of the light intensity also the correlated colour temperature (CCT) of light is important parameter that influences the mood of people and their performance. The possibility of changing CCT of white light has gradually become a standard part of higher-class lighting installation. The manufacturers have developed various methods of Tunable white control – manual, remote-controlled or controlled via standard wired protocols such as DALI. The more complex control devices even offer possibility of dynamic CCT changing throughout the day according to the circadian cycle (according to the changes in CCT of sunlight). Nevertheless how complex the algorithm of CCT setting is, it can never dynamically react to the changes of ambient light condition unless there is a sensor for feedback measurement. The advantages of automated light intensity control using ambient light sensor are well-known. The aim of this paper is to describe an application of general purpose colour sensor as the feedback element for the regulation of Tunable white luminaires. Firstly, the theoretical basis of CCT measurement is described. Subsequently the paper presents the results of several measurements and case studies. Finally, the last part of the paper is dedicated to the concept of colour sensor that is powered directly from the light it is measuring using energy harvesting methods.
Keywords: colour sensing; DALI.; regulation; Tunable white
Host item entry: Proceedings of the 21st International Conference LIGHT SVĚTLO 2015, ISBN 978-80-214-5244-2
Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/51627
Permalink: http://www.nusl.cz/ntk/nusl-234461
The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Conference materials > Papers
Translated title: Barevný senzor pro regulaci nastavitelných bílých svítidel
Authors: Paus, Anton ; Hronec, Pavol
Document type: Papers
Language: eng
Publisher: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií
Abstract: The quality of light is very important factor for human well-being. Except of the light intensity also the correlated colour temperature (CCT) of light is important parameter that influences the mood of people and their performance. The possibility of changing CCT of white light has gradually become a standard part of higher-class lighting installation. The manufacturers have developed various methods of Tunable white control – manual, remote-controlled or controlled via standard wired protocols such as DALI. The more complex control devices even offer possibility of dynamic CCT changing throughout the day according to the circadian cycle (according to the changes in CCT of sunlight). Nevertheless how complex the algorithm of CCT setting is, it can never dynamically react to the changes of ambient light condition unless there is a sensor for feedback measurement. The advantages of automated light intensity control using ambient light sensor are well-known. The aim of this paper is to describe an application of general purpose colour sensor as the feedback element for the regulation of Tunable white luminaires. Firstly, the theoretical basis of CCT measurement is described. Subsequently the paper presents the results of several measurements and case studies. Finally, the last part of the paper is dedicated to the concept of colour sensor that is powered directly from the light it is measuring using energy harvesting methods.
Keywords: colour sensing; DALI.; regulation; Tunable white
Host item entry: Proceedings of the 21st International Conference LIGHT SVĚTLO 2015, ISBN 978-80-214-5244-2
Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/51627
Permalink: http://www.nusl.cz/ntk/nusl-234461
The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Conference materials > Papers
Record created 2016-06-03, last modified 2021-08-22