Invention Grant
- Patent Title: Open-loop closed-loop integrated daylight and artificial light control with multipoint sensor calibration
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Application No.: US14241465Application Date: 2012-09-24
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Publication No.: US09650831B2Publication Date: 2017-05-16
- Inventor: Dagnachew Birru , Yao-Jung Wen
- Applicant: PHILIPS LIGHTING HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- International Application: PCT/IB2012/055066 WO 20120924
- International Announcement: WO2013/046112 WO 20130404
- Main IPC: G05B15/02
- IPC: G05B15/02 ; G05B19/042 ; E06B9/68 ; G05D25/02 ; H05B37/02 ; E06B9/32

Abstract:
A system and method of controlling light distribution in a space including an installed light source, an external light source, at least one blind(s) for a window in the space, a lighting control unit and a daylight/blind control unit, the method includes, in the lighting control unit, estimating task illuminances from the installed light source and the external light source at a plurality of measuring areas within the space, determining an intensity level of each of the installed light source based on the estimated illuminances; and determining a first positioning of the blinds according to predetermined requirements and/or measurements, in the daylight/blind control unit, receiving the plurality of measuring areas data within the space, determining a second positioning of the blinds according to predetermined requirements, selecting either the first or second positioning of the blinds to provide optimal daylight comfort, glare prevention and view.
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Information query