Research on mine integrated communication system
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摘要: 针对煤矿井下各系统独立运行、基站数量多且无线数据传输带宽不足等问题,采用LTE技术设计了一种全矿井融合通信系统。该系统通过综合基站对井下无线通信、人车精确定位、IP 电话、语音广播等多业务进行统一接入、承载和管理,并可与现有业务平台对接。测试结果表明,该系统的综合基站覆盖半径为400 m,信号接收强度不低于-105 dB,基站间无线通信切换时间为21.67 ms,无线通话质量较好。Abstract: For problems of independent operation of each system in coal mine underground and too many base stations with shortage of wireless data transmission bandwidth, a mine integrated communication system was designed by use of LTE technology. The system can realize unified accessing, loading and management of multi businesses through integrated base stations such as wireless communication, precise personnel and locomotive positioning, IP telephony, voice broadcast and so on, and connection to existing business interfaces. The test result shows that the integrated base station in the system has covering radius of 400 m with received signal strength of no less than -105 dB, switching time of wireless communication among the base stations is 21.67 ms, and the system has higher wireless communication quality.
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