A Design Method of Road Lighting System Based on Average Illumination
A lighting system and average illuminance technology, applied in design optimization/simulation, special data processing applications, etc., can solve problems such as difficult quantitative calculations and inability to provide effective guidance for urban road street lamp configuration optimization, so as to improve accuracy and continuity, Reasonably optimized and easy to obtain effects
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specific Embodiment approach 1
[0019] Specific implementation mode 1: A road lighting system design method based on average illuminance described in this implementation mode, the method is specifically implemented through the following steps:
[0020] Step 1: Establish a spatial Cartesian coordinate system for the entire lighting area, assuming that there are n lighting street lights in the lighting area, and the luminous point of the kth lighting street light is P k ,k=1,2,...,n, the coordinates of the observation point A in the observation area M in the established space Cartesian coordinate system are (x, y, z), the schematic diagram of the observation area is as follows figure 2 shown;
[0021] Step 2: Set the installation height of the kth lighting street lamp from the ground in the road lighting system as l k , the cantilever length of the kth lighting street lamp from the light pole is d k , the elevation angle of the kth lighting street lamp is α k , the distance between the k+1th lighting stree...
specific Embodiment approach 2
[0030] Specific implementation mode two: combination figure 1 This embodiment will be described. The difference between this embodiment and the specific embodiment one is that the spatial Cartesian coordinate system established in the first step is:
[0031] The X-axis and Y-axis of the space Cartesian coordinate system are located in the road plane, and the X-axis is parallel to the road edge, and it is stipulated that the forward direction of the vehicle is the positive direction of the X-axis, and the Y-axis is perpendicular to the road edge, and it is specified to point to the direction of the road centerline is the positive direction of the Y-axis, and the Z-axis is perpendicular to the road plane, and it is stipulated that the upward direction is the positive direction of the Z-axis, and the X-axis, Y-axis and Z-axis form a right-handed coordinate system.
specific Embodiment approach 3
[0032] Specific implementation mode three: the difference between this implementation mode and specific implementation mode one is: the specific process of the step three is:
[0033]
[0034] In the formula, R k Is the luminous point P of the kth lighting street lamp k Distance to observation point A, i=1,2,...,k.
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