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基于LTE的矿井无线通信系统研究 被引量:1
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作者 颜冰 《中国高新科技》 2017年第14期10-13,共4页
文章针对现有矿井无线通信系统信道容量小、多径干扰严重、难以消除井下通信盲区等问题,基于分布式MIMO天线,提出了一种LTE矿井无线通信系统,旨在通过工作模式自动选择,实现矿井无线通信系统的快速切换;同时,结合系统原理及本安基站的... 文章针对现有矿井无线通信系统信道容量小、多径干扰严重、难以消除井下通信盲区等问题,基于分布式MIMO天线,提出了一种LTE矿井无线通信系统,旨在通过工作模式自动选择,实现矿井无线通信系统的快速切换;同时,结合系统原理及本安基站的电路设计,探讨了系统功能及主要特点,并对系统性能进行了仿真实验验证。 展开更多
关键词 LTE 矿井无线通信系统 多输入多输出(MIMO)系统 信道容量
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Development of underground mine monitoring and communication system integrated ZigBee and GIS 被引量:13
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作者 Moridi Mohammad Ali Kawamura Youhei +4 位作者 Sharifzadeh Mostafa Chanda Emmanuel Knox Wagner Markus Jang Hyongdoo Okawa Hirokazu 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2015年第5期811-818,共8页
An automated underground mine monitoring and communication system based on the integration of new technologies is introduced to promote safety and health,operational management and cost-effectiveness.The proposed syst... An automated underground mine monitoring and communication system based on the integration of new technologies is introduced to promote safety and health,operational management and cost-effectiveness.The proposed system integration considering Wireless Sensor Network(WSN) assisted Geographic Information System(GIS) enables to monitor and control underground mining applications from surface office.Based on the capabilities of WSNs,ZigBee network is adapted for near real-time monitoring,ventilation system control and emergency communication in underground mine.ZigBee nodes were developed to sense environmental attributes such as temperature,humidity and gases concentration;switching ON and OFF ventilation fans;and texting emergency messages.A trigger action plan for monitored attributes above normal and threshold value limits is programmed in the surface GIS management server.It is designed to turn the auxiliary fans on remotely or automatically in orange condition and sending evacuation messages for underground miners in unsafe(red) condition.Multi-users operation and 3D visualisations are other successful achievements of the proposed system for the underground monitoring and communication. 展开更多
关键词 Wireless sensor networks ZIGBEE Underground mine safety Ventilation Mine monitoring
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