Fault analysis of earthquake measuring system in Jiangsu
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摘要: 统计江苏测震台网2013—2017年故障实例，将观测系统分为3个部分：专业观测设备、网络设备、供电及接地。归纳出6大类、19小类的故障类型，故障主要集中在专业仪器自身及其供电装置上，占总数的83%；数据采集器故障率最高，地震计故障中近半数为开锁摆故障；稳压电源故障远多于UPS故障；自2015年起故障率显著增多。建议使用工业级的智能电源，地震计和数据采集器单独供电，更换超过使用寿命的设备，统一全省台站观测装备和配置，改进运维检修模式和应急抢修制度，形成地区性质的建台技术规范或标准，可以进一步降低设备的故障率，减少因故障中断记录的时间。Abstract: According to the statistics of the fault cases of Jiangsu seismological network from 2013 to 2017, the observation system is divided into three parts: professional observation equipment, network equipment, power supply and grounding. In this paper, 6 categories and 19 sub-categories of fault types are summarized. About 83% of faults are due to the failures of professional instruments and their power supply devices. The failure rate of data collectors is the highest. Nearly half of the seismometer failures are unlocking pendulum failures; the voltage stabilized power supply failures are much more than UPS failures; the failure rate has increased significantly since 2015. It is suggested to use industrial-grade intelligent power supply, seismometer and data collector to supply power separately, replace equipment beyond service life, unify the observation equipment and configuration of stations throughout the province, improve the operation and maintenance mode and emergency repair system, and form regional technical specifications or standards for building stations, which can further reduce the failure rate of equipment and reduce the time of interruption.
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Key words:
- Jiangsu seismic network /
- observation technology system /
- typical faults /
- solutions
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表 1 江苏省2013—2017测震观测技术系统故障统计表
故障位置 故障类型 2013年 2014年 2015年 2016年 2017年 合计 比例% 地震计 锁摆 1 3 6 10 5.38 靠摆 2 1 8 11 5.91 电路板 2 1 8 2 6 19 10.22 标定 1 1 2 1.08 摆线 2 2 1.08 井下控制盒 1 1 0.54 数据采集器 死机 2 4 1 7 3.76 软件 3 2 5 2.69 电路板 3 3 18 4 7 35 18.82 授时模块 1 2 4 1 8 4.30 GPS 外置天线 1 5 7 3 16 8.60 供电系统 UPS 1 1 5 1 2 10 5.38 稳压电源 7 4 3 7 6 27 14.52 通信系统 交换机 1 1 2 1 5 2.69 路由器 1 2 3 1.61 光电转换器 1 1 1 1 4 2.15 外部故障 市电停电 2 1 3 1.61 通信中断 1 3 5 8 1 18 9.68 合计 22 22 64 37 41 186 100.00 
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