【作者】 罗仕胜；

【导师】 孙桂玲；

【作者基本信息】 南开大学 ， 通信与信息系统， 2010， 硕士

【摘要】 随着传感器技术的发展和硬件水平的不断提高,自组织无线传感器网络在工农业、城市管理、生物医疗、环境监测、抢险救灾等领域得到了越来越多的应用。我国煤矿数量多,而且监控系统大多采用有线方式,布线昂贵,维修复杂,无法动态改变网络结构,网络容量小,并且只能延伸到煤矿的巷道内,对采煤区的作业情况无法进行监测。本文在基于自组织无线传感器网络研究的基础上,设计了基于嵌入式Linux系统的基站,用于系统运行时的数据接收、处理、存储、转发和显示等接口,实现了基站作为汇聚节点应具备的功能。并为终端提供了人性化的监控界面,实时观测系统运行状况。主要内容包括多媒体传感器节点设计、射频收发模块设计与实现、基站与终端软硬件设计以及低复杂度的视频压缩算法。使用自组织异构无线传感器网络,将温湿度、瓦斯、视频传感器节点部署在监测区域或矿工身上,实时监测矿井和矿工的运行工作情况,对矿井的安全事故预防、检测以及矿工的救援工作具有重要的研究意义和较高的实用价值。更多还原

【Abstract】 With the developping steps of sensor technology and hardware, self-organizing wireless sensor networks (WSN) have being used more and more fields and directions, such as industry, agriculture, urban management, bio-medical, environmental monitoring, and disaster relief. Wired control system in Coal mines requires expensive wiring costs, complex maintenance, and can not change the network structure dynamically, its capacity is small, and can only be extended to the coal mine roadway, without monitoring of the mining areas.In this paper, after the research on self-organizing wireless sensor networks, we designed the base station based on embedded Linux for system to achieve data reception, processing, storage, forwarding, and display functions, as a sink node. We provided terminal GUI to observe system status in real-time. The main contents of this paper include multimedia sensor node design, RF transceiver module design and implementation, base station and terminal hardware and software design, and also low-complexity video compression algorithm. With the deployment of the system, Information of monitoring area, or Miners status, such as temperature, humidity, gas dengsity, video, can be easily observed, which ensure a way of mine safety, accident prevention, detection, and rescue work. The research provides important guidance and high practical value.更多还原