井下多媒体传感器网络通信频率路由协议研究

Study on communication frequency and routing protocol in underground multimedia sensor network

为了解决煤矿井下安全生产问题,提高矿井监测监控能力,提出了一种基于MPEG-4标准的井下多媒体传感器网络(UMSN)。UMSN基本功能是收集并返回多媒体传感器节点在井下监测区域捕获的视频和音频信息,实验结果表明:井下平直巷道中最佳无线通信频率为2.4GHz。大巷的应用中,拉扩散比较合适;人难以达到的场合,则推扩散比较合适;已知地理位置信息,则位置和能量感知路由是一种更好的选择。

To solve the problems undergroud coal mines on production safety, and improve the capacity of monitoring and control for mines, the undergroud multimedia sensor network （UMSN）based on MPEG--4 is proposed. UMSN＇ s basic function is to collect and return the Video and audio imformation which multimedia sensor nodes capture in undergroud monitoring areas. The results show that in straight mine tunnels the optimal wireless communication frequency is 2.4 GHz. Pull diffusion suits tunnels ; Push diffusion suits places where men cannot reach. Geographical energy-aware routing is a better choice for places already known geographic imformation.