基于LoRa技术的矿用无线复合传感器设计与实现  

Design and implementation of mine wireless composite sensor based on LoRa

作　　者：薛光辉[1] 赵贺 孙宗正 XUE Guang-hui;ZHAO He;SUN Zong-zheng(School of Mechanical Electronic and Information Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《煤炭工程》2020年第4期166-170,共5页Coal Engineering

基　　金：国家重点基础研究计划(973计划)资助项目“深部危险煤层无人采掘装备关键基础研究”(2014CB046306);中央高校基本科研业务费专项资金资助项目(2009QJ16)。

摘　　要：随着无线传感器网络技术的发展,设备状态无线监测系统越来越得到重视。针对现有的矿用无线传感器终端存在功耗高、通信距离短、射频信号抗干扰能力差等问题,提出了基于LoRa技术的矿用无线复合传感器的设计方案,详细论述了传感单元、主控单元、射频单元等硬件模块的选型与设计,以及振动数据采集、温度数据采集、数据发送等软件模块,给出了各软件模块的程序流程图。搭建了测试系统,开展了设计的无线复合传感器的功耗、无传输距离和数据有效性等性能测试。测试结果表明,设计的无线复合传感器功耗低,丢包率小于10%时无线传输距离优于600米,采集的数据真实有效。研究成果为矿用设备状态无线监测系统提供了技术支持。With the advancement of wireless sensor network technology,wireless monitoring systems for equipment status is receiving more and more attention.Aiming at the high power consumption,short communication distance and poor anti-interference ability of RF signals in current mining wireless sensor terminals,a design scheme of mining wireless composite sensors based on LoRa technology is proposed.Selection and design of hardware modules such as control unit and radio frequency unit,and software modules such as vibration data acquisition,temperature data acquisition and data transmission are expounded,and program flow charts of the software modules are given.Performance tests are conducted on the power consumption,wireless transmission distance and data validity of the composite wireless sensors.The test results show that the designed wireless composite sensor has low power consumption,and the wireless transmission distance is more than 600 meters when the packet loss rate is less than 10%.The collected data is valid and achieves the design expectations.

关 键 词：矿用机械设备 设备状态监测 无线通信 LoRa 复合传感器 

分 类 号：TD655[矿业工程—矿山机电]