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无线传感网络(wireless sensor network, WSN)是由部署在监测区域内大量的微型传感器组成,通过无线通信的方式形成的一个多跳的自组织网络系统,其目的是协作采集、感知和处理网络覆盖区域中感知对象的信息,并发送给观察者。对于无线传感网络而言,良好的网络拓扑结构,能够为无线传感网络的许多关键技术奠定基础。目前对煤矿的安全监测主要是通过有线通信方式,存在布线繁琐、成本高以及线路依赖性强等缺陷和不足,已经成为制约煤矿安全生产的瓶颈问题。无线传感网络具有结构灵活、自组织、多跳等优点,是弥补目前煤矿井下监控系统缺陷的有效工具。
Other Abstract
Wireless Sensor Network (WSN) is composed of a large number of micro sensors which deployed in the monitoring area by way of wireless communication, through the formation of a multi hop self-organized network system, its purpose is perception, acquisition and processing of network collaborative information of object in the coverage area, and send to the observer. For wireless sensor networks, a good network topology can lay the foundation for many key technologies of wireless sensor networks. At present, the safety monitoring of coal mine is mainly through the wired way, which has the defects such as complicated wiring, high cost and strong dependence on the line. With the rapid development of wireless sensor networks and its advantages of flexible structure, self-organization, multi hop and so on, it is an effective tool to make up for the shortcomings of the current monitoring system.
Therefore, this paper combines the wireless sensor network with the special environment of coal mine, designs and realizes the wireless sensor network system. In this monitoring system, a variety of environmental parameters can be monitored, and the environment and equipment status in coal mine can be understood in real time, so as to make corresponding decisions in a timely manner. Therefore, the research content of this paper has important theoretical significance and practical application value.
This system uses ZigBee wireless communication technology as the basis of wireless sensor network. In coal mine, we use ZigBee wireless sensor network node to build a wireless sensor network, and each node in a wireless sensor network will collect environmental information by multi hop transmission to the remote monitoring center, to achieve remote monitoring. This paper first introduces the ZigBee technology, and then through the research on wireless sensor network topology control based on power control, combined with the special environment of coal mine, put forward a kind of adaptive transmit power optimization algorithm to realize low power consumption design of wireless sensor network node. Finally, the design and implementation of wireless sensor network system are carried out. The performance of wireless sensor network system and its nodes are analyzed.
ZigBee wireless sensor network system is designed in this paper can not only meet the basic function of network communication, but also be able to access a variety of adaptive mine sensors, so as to improve the flexibility of wireless sensor network node, to better adapt to the special environment of coal mine. The work of this paper has laid a solid foundation for coal mine safety monitoring.
Keyword无线传感网络无线传感网络 煤矿安全 Zigbee 拓扑控制 传感器自适应
Document Type学位论文
First Author AffilicationInstitute of Automation, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
潘程. 煤矿井下无线传感网络系统设计与实现[D]. 北京. 中国科学院研究生院,2017.
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