结合观测研究某地区天空亮度分布的方法以及参考天空模型的构建方式，提出了 华南区参考天空模型( CSRS) ，并通过房间内的实地测量验证了该计算模型; 然后在华南区 夏季光气候条件下以某侧窗采光教室为研究对象提出了基于CSRS 的建筑采光优化设计方 法; 最后针对该案例给出了优化的采光设计方案及量化参数，并说明了其采光效果． 结果表 明: 使用CSRS 模型进行采光模拟与分析的结果较CIE 标准全云天模型更准确．

In this paper, by combining the method of observing the sky luminance distribution in a given area and the structure of reference sky model, a calculation model named as CSRS (China South Reference Sky Model) is constructed and then verified by a measurement in model classroom. Then, on the condition of summer climate of South China and by taking a classroom with side-window as the research objective, a daylight optimization design procedure is proposed on the basis of CSRS model. Finally, an optimized daylight scheme is designed for this case, and corresponding quantization parameters and daylight performance are analyzed. The results show that CSRS model is more accurate than CIE model in the building daylight analysis