Research on Uniform Glare Value Detection Based on 3D Modelling Measurement of Stereo Angle——An Example of an Office Lighting System
As one of the important considerations in the acceptance of building lighting system and green building evaluation,the importance of unified glare rating is self-evident.The research status of UGR detection is described.In the actual detection,the traditional measurement method of three-dimensional angle first measures the relative position size of the observer and the luminaire,and then approximates the result by the formula,which has the problem of large error in the measurement of the three-dimensional angle.Based on the method of three-dimensional modelling to measure the stereo angle,the UGR of an office system was measured in practice,and the detection results of the two stereo angle measurement methods,namely the formula method of calculating the stereo angle of the glare source and the three-dimensional modelling method,were compared and analysed,and a conclusion was drawn that the detection of the three-dimensional modelling method was more accurate,with a view to improving the accuracy of the detection of the UGR.
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