为满足水利水电工程远程视频诊断的需求,提出一种适用于偏远山区的无线网络规划方案. 介绍了网络规划中,查勘选址的原则,Mesh多频组网的覆盖方式,链路预算和仿真设备选型,以及通过调整天线高度、下倾角和方向角等手段对网络进行优化的方法. 规划方案成功应用于乌东德水电站施工现场,现场骨干网络达到1. 4Gbps,满足了后方对高清视频诊断的需求. 相较于传统的有线网络、卫星通讯和3G通讯方式,该网络成本更低,建设便捷,更适于偏远山区.%To meet the demand of remote video diagnosis network for water conservancy and hydropower projects, a wireless network planning solution for mountainous area is put forward. We introduced the site selection principle, coverage mode of mesh multi frequency network, link budget, simulator type selection in the network planning and the network optimization methods by the adjustment of antenna height, antenna dip angle and direction. The planned scheme was applied in Wudongde Hydropower Station and the backbone network capacity reached 1. 4 Gbps, which meets the HDTV requirement of home front. Compared with the traditional wire network, satellite communication and 3G communication, the presented network is lower in cost, convenient in construction and more adapt to remote mountainous area.
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