Illumination control
First Claim
1. A method for controlling a lighting system comprisinga plurality of lighting units, each lighting unit being identified by an identification code, and comprising a lighting source for emitting visible light and a modulated light source for emitting a modulated light configured to carry the identification code,a radiation pattern of the modulated light substantially coinciding with a radiation pattern of the illumination light, the method comprisingsensing, in a viewing area, at least one attribute of the modulated lights emitted by at least two lighting units of the plurality of lighting units,analyzing the modulating lights to produce control data based on the identification code of each of the at least two lighting units and the at least one attribute of each of the modulated lights, andcontrolling the at least two lighting units based on the control data.
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Accused Products
Abstract
Controlling a lighting system, which comprises a controller (2, 10), lighting units (6), and a sensing device. Each lighting unit comprises a lighting source (12) and a modulated light source (14). A single light source may be used to function as both the lighting source and the modulated light source. Each modulated light source emits uniquely modulated light. A radiation pattern of each modulated light source coincides substantially with a radiation pattern of a lighting source of the same lighting unit. The sensing device is suitable to sense modulated light in a viewing area. Lighting units from which the sensing device senses modulated light are identified from the modulation of that modulated light. The sensing device measures the intensity of the modulated light from the identified lighting unit. The lighting sources are controlled dependent on control data which comprises measuring values of measured light intensities.
52 Citations
16 Claims
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1. A method for controlling a lighting system comprising
a plurality of lighting units, each lighting unit being identified by an identification code, and comprising a lighting source for emitting visible light and a modulated light source for emitting a modulated light configured to carry the identification code, a radiation pattern of the modulated light substantially coinciding with a radiation pattern of the illumination light, the method comprising sensing, in a viewing area, at least one attribute of the modulated lights emitted by at least two lighting units of the plurality of lighting units, analyzing the modulating lights to produce control data based on the identification code of each of the at least two lighting units and the at least one attribute of each of the modulated lights, and controlling the at least two lighting units based on the control data.
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9. A lighting system comprising:
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a plurality of lighting units, each lighting unit being identified by an identification code, and configured to emit visible light and a modulated light configured to carry the identification code, and a radiation pattern of the modulated light substantially coinciding with a radiation pattern of the visible light; and a light-sensing device configured to sense, in a viewing area, at least one attribute of modulated lights emitted by at least two lighting units of the plurality of lighting units, and to produce control data based on the identification code of each of the at least two lighting units and the at least one attribute of each of the modulated lights, and a controller configured to control the at least two lighting units based on the control data. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification