Statistical analysis of operation failure of Jiangxi seismic network
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摘要: 应用数理统计方法，系统分析了2015年以来连续5年江西测震台网25个台站运行中断的原因，总结归类为8大故障类型，揭示了台站供电和通讯网络是影响正常运行的主要因素，占比达92%以上；故障统计分析显示，高温酷暑和冰冻严寒是故障高危时段，每年约有8周时间。针对主要因素和高危时段，提出了相应的改进措施与工作建议，这对江西测震台网运行保障将起到积极作用。Abstract: Applying mathematical statistics method, this paper systematically analyzes the reasons for the interruption of the operation of 25 stations in Jiangxi seismic network for five consecutive years since 2015, and classifies them into 8 major faults types. It is found that the station power supply and communication network are the main factors affecting the normal operation, accounting for more than 92%. Statistical analysis of faults shows that high temperature, intense summer heat and freezing cold are high-risk periods of faults, which takes about 8 weeks per year. According to the main factors and high-risk period, corresponding improvement measures and working suggestions are put forward, which play a positive role in the operation guarantee of Jiangxi seismic network.
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Key words:
- network operation /
- mathematical statistics /
- failure analyze /
- measures and suggestions
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图 2 江西测震台站技术系统连接图
Figure 2. Technical system connection diagram of Jiangxi seismic stations
图 3 2015—2019江西测震台站年均运行率柱状图
Figure 3. Bar chart of average annual operation rate of Jiangxi seismic stations from 2015 to 2019
图 4 2015—2019年江西测震台站故障次数占比统计
Figure 4. Statistics of failure frequency of Jiangxi seismic stations from 2015 to 2019
图 5 2015—2019年江西测震台站故障时长统计
Figure 5. Statistics of fault duration of Jiangxi seismic stations from 2015 to 2019
图 6 2015—2019年江西测震台站周故障次数统计
Figure 6. Statistics of weekly failure frequency of Jiangxi seismic stations from 2015 to 2019
图 7 2015—2019年江西测震台站周故障次数降序统计
Figure 7. Statistics of weekly fault frequencies of Jiangxi seismic stations from 2015 to 2019 in descending order
表 1 2015—2019年江西测震台站运行率统计表
Table 1. Statistics of operation rate of Jiangxi seismic stations from 2015 to 2019
台站名称 2015年 2016年 2017年 2018年 2019年 平均值 标准偏差 上饶 99.20% 100.00% 99.51% 99.83% 99.70% 99.65% 0.003 会昌 99.27% 99.50% 99.05% 99.58% 99.91% 99.46% 0.003 安远 99.25% 99.88% 98.92% 98.97% 99.06% 99.22% 0.004 吉安 98.71% 99.11% 98.77% 98.01% 98.16% 98.55% 0.004 九江 99.68% 99.88% 99.56% 99.48% 98.63% 99.45% 0.004 南昌 98.62% 98.41% 99.14% 99.50% 99.50% 99.03% 0.004 寻乌 99.22% 98.97% 98.76% 98.60% 97.84% 98.68% 0.005 大余 99.04% 97.74% 98.91% 99.01% 98.76% 98.69% 0.005 井冈山 98.95% 98.58% 97.71% 98.93% 99.08% 98.65% 0.005 龙南 98.88% 98.30% 98.70% 99.55% 99.72% 99.03% 0.005 都昌 98.33% 98.52% 98.13% 99.24% 99.53% 98.75% 0.005 丰城 99.54% 98.55% 98.92% 97.83% 99.22% 98.81% 0.006 乐安 99.37% 98.44% 98.30% 99.84% 99.41% 99.07% 0.006 兴国 99.86% 97.95% 98.00% 99.27% 99.33% 98.88% 0.008 赣州 99.42% 99.19% 97.41% 97.72% 98.96% 98.54% 0.008 高安 97.16% 97.50% 98.55% 98.00% 99.60% 98.16% 0.009 石城 98.40% 96.72% 98.83% 98.76% 99.22% 98.39% 0.009 宜春 98.74% 99.71% 98.09% 96.99% 98.72% 98.45% 0.009 南城 98.19% 97.66% 97.37% 96.43% 99.34% 97.80% 0.010 余干 98.00% 96.87% 97.25% 99.40% 99.29% 98.16% 0.010 修水 98.05% 96.97% 97.41% 99.46% 99.75% 98.33% 0.011 永修 95.37% 97.91% 98.27% 98.09% 98.84% 97.70% 0.012 万安 97.05% 95.30% 98.80% 98.90% 98.19% 97.65% 0.013 进贤 99.04% 98.32% 96.24% 95.81% 99.10% 97.70% 0.014 景德镇 95.77% 95.68% 97.02% 97.55% 99.68% 97.14% 0.015 平均值 98.52% 98.23% 98.30% 98.59% 99.14% 
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表 2 2015—2019年江西测震台站故障次数统计表
Table 2. Statistics of failure frequency of Jiangxi seismic stations from 2015 to 2019
年份 外部停电 供电设备 地震计 数据采集器 通讯链路 通讯设备 人为干扰 天灾因素 供电故障占比 通讯故障占比 2015 203 9 0 11 107 19 11 4 58.24% 34.62% 2016 283 32 2 27 177 9 6 12 57.48% 33.94% 2017 158 38 5 30 176 9 5 2 46.34% 43.74% 2018 176 42 3 21 163 27 5 1 49.77% 43.38% 2019 142 28 3 14 187 18 5 2 42.61% 51.38% 总计 962 149 13 103 810 82 32 21 51.15% 41.07% 占比 44% 7% 1% 5% 37% 4% 1% 1% 51% 41%
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