室内VLC系统光源布局设计

发布时间：2018-04-02 14:10

本文选题：可见光通信　切入点：光源布局　出处：《红外与激光工程》2017年11期

【摘要】：在可见光通信系统中,光源具有照明和通信的双重作用,由于房间的大小以及室内环境各不相同,难免会存在光照射不到或者光线比较微弱的地方,这些地方很有可能成为通信的盲区,这将会大大影响通信的质量,为了解决阴影效应,需合理对光源进行布局设计,以4 m×4 m×3 m房间为模型,采用四个LED列阵作为室内光源,将单个的LED光源看做朗伯光源,服从朗伯辐射模型,通过公式计算结合软件仿真分析对比得出了采用9×9大小的LED列阵,列阵距离屋顶边缘0.4 m,LED光源间的间距为0.03 m时,在满足国际室内照明标准的前提下,在距离屋顶2.25 m的4 m×4 m接收平面上光照度分布最均匀,其均匀度达到90.4%。该光源列阵布局模型可推广到任意尺寸房间,为室内办公照明中光源的布局提供了一种可行的方案。
[Abstract]:In the visible light communication system, the light source has the dual function of lighting and communication. Because the room size and indoor environment are different, it is inevitable that there are places where the light can not be illuminated or the light is weak.These places are likely to be the blind areas of communication, which will greatly affect the quality of communication. In order to solve the shadow effect, it is necessary to reasonably design the light source, taking 4 m 脳 4 m 脳 3 m room as the model and using four LED arrays as the indoor light source.Taking a single LED source as a Lambert light source and applying the Lambert radiation model, a 9 脳 9 size LED array with a spacing of 0.03 m from the edge of the roof is obtained by formula calculation and software simulation analysis.On the premise of meeting the international indoor lighting standard, the light intensity distribution is the most uniform on the receiving plane of 4 m 脳 4 m from the roof 2.25 m, and the uniformity reaches 90.4%.The light source array layout model can be extended to any size room, which provides a feasible scheme for the layout of light source in indoor office lighting.
【作者单位】：西安工业大学电子信息工程学院;
【基金】：国家自然科学基金(61271362) 陕西省科技厅一般项目-工业领域(2017GY-081) 陕西省自然科学基金(2017JM6041) 西安市科技计划项目(2017075CG/RC038(XAGY0012)) 陕西省教育厅科技专项(2017JK0373)
【分类号】：TN929.1

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