Research on the Earthquake Early Warning Information Rapid Release System
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摘要: 为了以最小的延时和最便捷的方式向公众提供最准确的地震预警信息，本文基于互联网技术，面向移动端及桌面端用户，提出了地震预警信息发布系统总体架构设计方案，对比分析了各类数据交换方式，推荐使用MQTT+JSON的数据格式作为服务端与客户端的交互方式，并利用LBS及GIS等关键技术实现了一体化地震预警信息发布系统。通过综合测试，验证了系统在实时性、可靠性等方面的优势。Abstract: In order to provide the most accurate earthquake early warning information to the public with the minimum delay and the most convenient method, a framework of the earthquake early warning information rapid release system which based on Internet technology is proposed in this paper. By analyzing various types of data exchange methods, we proposed to use the data format of MQTT+JSON as the interaction mode between servers and clients. The earthquake early warning information rapid release system was realized by using key technologies such as LBS and GIS. A comprehensive test is carried out, the test results verified the advantages of the system in terms of real-time and reliability.
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图 1 地震预警信息发布系统逻辑架构
Figure 1. The logical architecture of earthquake early warning information rapid release system
图 5 反序列化耗时测试结果
Figure 5. Test result for time consuming of anti-serialization between XML and JSON
图 8 地震预警信息发布系统功能模块树
Figure 8. The function tree component of the earthquake early warning information rapid release system
图 9 WebGIS端预警信息发布效果
Figure 9. Actual effect map of the early warning information release in WebGIS
图 10 移动端预警信息发布效果
Figure 10. Actual effect map of the early warning information release in Android
表 1 XML与JSON格式预警信息代码对比
Table 1. Code format of early warning information between XML and JSON
XML格式（217个字符） JSON格式（142个字符） < InfoTable>
<Message>
<no>00012</no>，
<sta_code>RSH</sta_code>
<trig_time>2015-10-31 12：23：40</trig_time>
<period>0.02</period>
<magnitude>3.4</magnitude>
<lon>121.3</lon>
<lat>36.7</lat>
<depth>10</depth>
</Message>
</InfoTable >{" InfoTable" ：
[
{" no" ：00012，
" sta_code" ：" RSH" ，
" trig_time" ：" 2015-10-31 12：23：40" ，
" period" ：0.02，
" magnitude" ，3.4，
" lon" ，121.3，
" lat" ，36.7，
" depth" ，10
}
]}
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蔡寅, 刘希强, 赵银刚等, 2016.面向互联网的地震预警发布系统研制.见: 中国地球物理学会信息技术专业委员会"互联网+地球物理"研究论坛论文摘要集.枣庄: 中国地球物理学会信息技术专业委员会, 5-6. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-DWJS201607001003.htm 关庆余, 李鸿彬, 于波, 2014. MQTT协议在Android平台上的研究与应用.计算机系统应用, 23(4):196-200. http://d.old.wanfangdata.com.cn/Periodical/jsjxtyy201404040 韩敏, 冯浩, 2010.基于JSON的地理信息数据交换方法研究.测绘科学, 35(1):159-161, 32. http://d.old.wanfangdata.com.cn/Periodical/chkx201001057 刘成, 2013. LBS定位技术研究与发展现状.导航定位学报, 1(1):78-83. doi: 10.3969/j.issn.2095-4999.2013.01.015 许金喜, 张新有, 2015. Android平台基于MQTT协议的推送机制.计算机系统应用, 24(1):185-190. doi: 10.3969/j.issn.1003-3254.2015.01.035 杨陈, 黄志斌, 高景春等, 2009.全国地震速报信息共享服务系统.地震地磁观测与研究, 30(5):133-138. http://d.old.wanfangdata.com.cn/Periodical/dzdcgcyyj200905023 于京, 詹晓东, 2012.一种基于JSON格式的生产线数据采集系统模型.制造业自动化, 34(3):154-156. doi: 10.3969/j.issn.1009-0134.2012.2(s).53 赵庆展, 靳光才, 周文杰等, 2015.基于移动GIS的棉田病虫害信息采集系统.农业工程学报, 31(4):183-190. doi: 10.3969/j.issn.1002-6819.2015.04.026 Cauzzi C., Behr Y., Clinton J., et al., 2016. An open-source earthquake early warning display. Seismological Research Letters, 87(3):737-742. doi: 10.1785/0220150284 Festa G., Picozzi M., Caruso A., et al., 2018. Performance of earthquake early warning systems during the 2016-2017 MW 5-6.5 central Italy sequence. Seismological Research Letters, 89(1):1-12. doi: 10.1785/0220170150 Gasparini P., Manfredi G., 2014. Development of earthquake early warning systems in the European Union. In: Wenzel F., Zschau J., eds., Early Warning for Geological Disasters. Berlin, Heidelberg: Springer, 89-101. Mantas V. M., Liu Z., Pereira A. J. S. C., 2015. A web service and android application for the distribution of rainfall estimates and Earth observation data. Computers & Geosciences, 77:66-76. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=019e675a63c4697280d380dd95ae7d0b Vanjire S., Kanchan U., Shitole G., et al., 2014. Location based services on smart phone through the android application. International Journal of Advanced Research in Computer and Communication Engineering, 3(1):4982-4987. Xu Y., Wang J. P., Wu Y. M., et al., 2017. Reliability assessment on earthquake early warning:a case study from Taiwan. Soil Dynamics and Earthquake Engineering, 92:397-407. doi: 10.1016/j.soildyn.2016.10.015 -
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