吴鹏 杨江



摘 要: 文中设计一款地震预警信息发布单元,采用ITOP4412核心板作为主控板卡,利用其网络模块通过TCP/IP通信对地震信息推送服务器的数据包进行接收,并根据相关协议对接收数据包进行解析,得到本地地震烈度、地震到达时间、震源发生坐标等信息。通过I/O口驱动控制板卡进行地震烈度报警,同时,通过自带音频模块进行报警广播,利用RS 232通信接口与GLM?430?C触摸液晶屏进行数据交互和报警解除操作,具有地震信息推送报警响应快速、工作稳定等特点。
关键词: 地震预警信息发布单元; 地震数据解析; 地震烈度计算; 地震烈度报警; 报警解除; 性能测试
中图分类号: TN915?34 文献标识码: A 文章编号: 1004?373X(2020)11?0167?05
Development of earthquake warning information release unit
WU Peng1, 2, 3, YANG Jiang1, 3
(1. Hubei Key Laboratory of Earthquake Early Warning, Hubei Earthquake Agency, Wuhan 430071, China;
2. Hubei Subsurface Multi?scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China;
3. Wuhan Institute of Seismic Scientific Instruments Co., Ltd., Wuhan 437000, China)
Abstract: An earthquake warning information release unit is designed. The ITOP4412 core board is used as the main control board card, and its network module is used to receive the data packet of the seismic information push server by TCP/IP communication. The received data packets are analyzed according to the relevant protocol to obtain the local seismic intensity, earthquake arrival time and focal coordinates. The seismic intensity alarm is carried out by driving control board card of I/O port, the alarm broadcasting is carried out by built?in audio module, and the RS 232 communication interface and GLM?430?C touch LCD screen are used to carry out the data interaction and alarm release operation. It is verified that the unit has the characteristics of fast response to earthquake information push alarm and stable operation.
Keywords: earthquake warning information release unit; seismic data analysis; earthquake intensity calculation; earthquake intensity alarm; alarm release; performance test
0 引 言
目前,我国现有地震信息发布手段单一、覆盖范围有限、时效性较差。由中国地震局组织实施的国家地震烈度速报与预警工程项目预计2020年底实施完成[1]。同时,全国各省市也在非重点监视区积极建设预警补充网络。全国地震预警网建设完成后,我国将实现重点监视区10 km、非重点监视区30~40 km间距密度的地震预警监测,能提高预警时间和预警参数的准确性,为群众增加了宝贵的地震避险时间[2?3]。上述计划目前仅仅解决了地震信息的预警源问题,针对现在国内存在的空白,拟设计开发一款地震预警信息发布平台,用于进行相关地震信息的推送,主要应用于大型商业广场、学校、医院及大型重要基础设施。
1 工作原理
国家地震烈度速报与预警服务平台主要由地震监测台网、数据库、服务器、地震预警信息发布终端构成。……