Method for calculating road luminance distribution by adopting pavement reflectometer in rectangular coordinates
A technology of rectangular coordinates and brightness distribution, applied in calculation, computer-aided design, design optimization/simulation, etc., can solve problems such as difficult calculations
Active Publication Date: 2016-04-13
SHANGHAI SANSI ELECTRONICS ENG +3
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[0011] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for calculating road luminance distribution using a road surface reflection table under Cartesian coordinates, which is used to solve the problem of CIE in the prior art because the road luminance distribution is based on Cartesian coordinates. The reflection table is based on spherical coordinates, so it is very difficult to calculate
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[0036] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0037] see Figure 2 to Figure 13 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed ar...
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The invention provides a method for calculating road luminance distribution by adopting a pavement reflectometer in rectangular coordinates. The method comprises the steps of S1, converting a pavement reflectometer r(beta,gamma) in spherical coordinates into the pavement reflectometer r(x,y) in the rectangular coordinates; S2, analyzing pavement characteristics according to the pavement reflectometer r(x,y) in the rectangular coordinates; and S3, calculating the road luminance distribution according to the pavement reflectometer r(x,y) in the rectangular coordinates in combination with the pavement characteristics. According to the method for calculating the road luminance distribution by adopting the pavement reflectometer in the rectangular coordinates, provided by the invention, the luminance distribution of a single lane and a whole road can be conveniently calculated, thereby greatly facilitating the analysis on the luminance distribution of the road under given lamps and the design of lamps with isoluminance distribution and the like.
Description
technical field [0001] The invention relates to the field of road lighting, in particular to a method for calculating road luminance distribution using a road surface reflection table under Cartesian coordinates. Background technique [0002] Luminance evaluation methods are becoming more and more important in road lighting evaluation, but there is a lack of calculation work on luminance. Although the road luminance distribution can be calculated with the road surface reflection table r(β, γ) provided by CIE (International Commission on Illumination), the actual calculation process is very difficult. [0003] In the evaluation method of road lighting, brightness evaluation is more appropriate than illuminance evaluation, especially for highway lighting. This is because the brightness depends on the driver's observation, which is closely related to road traffic accidents, while the illuminance only depends on the measurement of the instrument. Many countries have taken lumi...
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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/06
Inventor 周士康陈春根许礼王鹰华
Owner SHANGHAI SANSI ELECTRONICS ENG