US 2019/0171172 A1 · System and method for the optimization of radiance modelling and controls in predictive daylight harvesting

Abstract

In an example, an expected sky condition is calculated for a geographic location, a time of day, and a date based on a mathematical model. A predicted distribution of direct and interreflected solar radiation within the environment is calculated based on the expected sky condition. Measurement data from one or more photosensors is obtained that provides measurements of an initial distribution of direct and interreflected radiation within the environment, including radiation from solar and electrical lighting sources. A target distribution of direct and interreflected artificial electromagnetic radiation produced by electrical lighting is determined, based on the measurement data and the predicted distribution of direct and interreflected solar radiation, to achieve the target distribution of direct and interreflected radiation within the environment. Output parameters are set to one or more devices to modify the initial distribution to achieve the target distribution of direct and interreflected radiation within the environment.

Claims20

Dependent claims

A method performed by a lighting modeling system of transferring attributes of exterior elements in an exterior environment through a transition surface to interior elements in an interior environment, wherein the method is performed using a virtual representation of the exterior environment, interior environment and the transition surface, the method comprising:

assigning, by a processor, a unique identifier to each exterior element and each interior element;
capturing, by the processor, a virtual image of the exterior environment from a center of the transition surface;
choosing, by the processor, a pixel of the virtual image;
determining, by the processor, which one of the exterior elements is visible to the pixel;
projecting, by the processor, the pixel onto the virtual representation of the interior environment;
determining, by the processor, which one of the interior elements is visible to the pixel;
assigning, by the processor, the unique identifier of said one exterior element as an attribute to said one interior element;
and
transferring, by the processor, a further attribute from said one exterior element to said one interior element using the unique identifier of said one exterior element.

6 more elements

A lighting modeling system for transferring attributes of exterior elements in an exterior environment through a transition surface to interior elements in an interior environment, using a virtual representation of the exterior environment, interior environment and the transition surface, the system comprising:

a processor;
and
a computer readable medium storing computer readable instructions, which, when executed by the processor cause the system to:
assign a unique identifier to each exterior element and each interior element;
capture a virtual image of the exterior environment from a center of the transition surface;
choose a pixel of the virtual image;
determine which one of the exterior elements is visible to the pixel;
project the pixel onto the virtual representation of the interior environment;
determine which one of the interior elements is visible to the pixel;
assign the unique identifier of said one exterior element as an attribute to said one interior element;
and
transfer a further attribute from said one exterior element to said one interior element using the unique identifier of said one exterior element.

9 more elements

Dependencies are inferred from the claim text.

System and method for the optimization of radiance modelling and controls in predictive daylight harvesting

Life of this patent

System and method for the optimization of radiance modelling and controls in predictive daylight harvesting

Life of this patent

Abstract

Claims20