摘要
在目前的煤矿顶板锚杆应力监测中,由于传感器整机功耗大,存在频繁更换电池的缺点。基于此问题,本文提出了一种基于无线扩频LoRa技术的低功耗锚杆应力传感器设计方案。传感器由锂离子蓄电池供电,并通过前向纠错编码技术与网关实现数据可靠传输。利用MCU降频、空闲模式切换的方式降低了整机功耗。从而解决了锚杆应力监测的现存问题。
Due to the large power consumption, there is a defect of frequent replacement battery in the present coal mine roof anchor rod stressmonitoring. Because of this problem, this paper proposes a low power consumption anchor rod stress sensor design based on LoRa, which is anew technology of wireless spread spectrum. Sensor consists of lithium ion battery power supply. To realize data reliable transmission Forwarderror correction coding technology applies data transmission to the gateway. Sensor reduces its power consumption by means of reducing MCUfrequency and idle mode switching. We solve the current existing problems of anchor rod stress monitoring.
出处
《煤矿现代化》
2017年第1期39-42,共4页
Coal Mine Modernization
基金
煤炭科学技术研究院有限公司技术创新基金
矿井监控与通信设备测试技术研究及平台建设
项目编号:2014CX25
关键词
LoRa技术
无线传输
锚杆应力传感器
低功耗
LoRa technology
wireless transmission
anchor rod stress sensor
low-power consumption