A window shading control system and method thereof based on decomposed direct and diffuse solar radiations
AssigneePhilips Lighting Holding B.V.
InventorsYAO-JUNG WEN, ROBERT D. CLEAR
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Abstract
A window shading control system (100) includes a sensor (110) configured to produce a global radiation measurement for each direction of at least four directions, wherein each global radiation measurement is a combined direct and diffuse component of at least one of illuminance and irradiance; a processor (120) connected to the sensor and configured to compute a discrete direct component and a diffuse component for global radiation measurement; and a control circuit (130) connected to the processor and configured to control a window shading system (150) based on the discrete direct component and the diffuse component computed for at least one global radiation measurement.
Claims16
A window shading control system, comprising:
- a sensor configured to produce a global radiation measurement for each direction of at least four directions, wherein each global radiation measurement is a combined direct and diffuse component of at least one of illuminance and irradiance;
- a processor connected to the sensor and configured to compute a discrete direct component and a diffuse component for global radiation measurement;
- and
- a control circuit connected to the processor and configured to control a window shading system based on the discrete direct component and the diffuse component computed for at least one global radiation measurement.
A method for controlling a window shading system, comprising:
- measuring a global radiation measurement for each direction of at least four directions, wherein each global radiation measurement is a combined direct and diffuse component of at least one of illuminance and irradiance;
- computing a discrete direct component and a diffuse component for the global radiation measurement;
- and
- controlling a window shading system based on the discrete direct component and the diffuse component computed for at least one global radiation measurement.
(canceled)
Dependencies are inferred from the claim text.