Device for simulating sky brightness distribution

Abstract

The invention discloses a device for simulating sky brightness distribution. The device includes a hemispherical frame cover which is bestrewed with an illumination module array formed by a pluralityof single light source bodies; the cover top of the hemispherical frame cover is mounted in the middle part of an arc-shaped support, two ends of the arc-shaped support are movably mounted at clampingends of two support frames through two bolts respectively, and one of the bolts is equipped with a locking handle used for locking relative movement of the arc-shaped support and the support frames;and under the control of a controller, brightness of each single light source body is independently controlled. The controller is also connected with a digital camera; and the digital camera collectssky / ambient brightness panorama HDR picture data, and sends the data to the controller. The device collects the sky / ambient brightness panorama HDR picture through the digital camera, the picture dataare stored after being processed by the controller and serve as input data to control the illumination module array mounted on the rotatable hemispherical frame cover to realize simulation of sky brightness distribution.

Description

technical field [0001] The invention relates to a building daylighting simulator device, in particular to a device for simulating sky brightness distribution. Background technique [0002] Architectural design puts forward requirements for laboratory simulation of building lighting, and the simulation under the condition of reflecting the sky brightness distribution in a certain area can better reflect the actual lighting effect of the building, which requires an artificial device that can simulate any sky brightness distribution However, the traditional simulation devices such as artificial sky have the following deficiencies: [0003] (1) Input data resolution is low [0004] The traditional sky brightness distribution model is established by measuring the brightness of several (eg: 145) points on the sky dome. The resolution of the sky brightness distribution model established by this method is low, and it cannot express the sky brightness distribution in detail. [000...

AI Technical Summary

Problems solved by technology

[0003] (1) Input data resolution is low

[0004] The traditional sky brightness distribution model is established by measuring the brightness of several (eg: 145) points on the sky dome. The resolution of the sky brightness distribution model established by this method is low, and it cannot express the sky brightness distribution in detail.

[0005] (2) Unable to simulate arbitrary sky brightness distribution

[0006] Traditional artificial sky can only simulate full cloud sky, uniform sky or CIE standard sky, usually the sky brightness distribution simulated by this kind of simulation device cannot be controlled according to any input brightness distribution data, so it does not have the performance of simulating arbitrary sky brightness distribution

[0007] (3) The brightness simulation of the sun (including the corona) is not accurate

[0008] The traditional artificial sky uses a dedicated (group) of lamps for the simulation of the sun, limited by this type of structural design, the brightness of the sun including the corona and the simulation effect of the corona range are inaccurate

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