共查询到20条相似文献，搜索用时 62 毫秒
1.
地震发生之后引起的信息传递和交换称为地震通讯,由于地震给通讯带来一些特殊问题和要求,使其具有某些特殊性,因此,制定地震通讯对策成为非常必要。本文对地震通讯的机构和任务分工,在重点地震危险区建设地震传输通讯网路,以及地震预报的中期、震后早期和震后晚期的通讯保障措施等三个方面概述了地震通讯对策。本文最后在“对我国地震通讯的展望”一节中提出,利用卫星通讯实现地震技术信息的远距离传输和应用计算机通讯网络实现地震信息共享。 相似文献
2.
介绍了串行通讯技术在地震电磁波监测仪中的应用,分析了Windows环境下串行通讯的编程技术,采用VC 6.0语言开发了一套串行通讯程序,可方便的实现PC机与地震电磁波监测仪之间的命令和数据传输. 相似文献
3.
徐扬 《地震地磁观测与研究》2007,28(6):105-108
针对中国地震局"十五"数字强震动项目中,美国Kinemetrics公司的ETNA或K2数字强震仪拨号通讯中的电缆连接、仪器通讯速率选择、Modem的选用和参数设定,以及通讯软件使用中的若干问题进行了讨论,给出一些实现正常通讯的设置、配置和使用方法,特别是通过对多种Modem配置的反复试验,总结一些能够顺利进行拨号通讯的配置. 相似文献
4.
5.
K2数字强震仪的远程访问 总被引：2，自引：1，他引：2
数字强震仪的远程通讯能力，特别是Internet通讯能力是建立未来数字强震遥测台网的重要基石。本文概述了K2 Altus数字强震仪的远程通讯功能，并就通过公共电话网络实现远端连接这一方案，详细介绍了K2系统通讯模块的扩展、参数设定以及两种远程通讯模式的实现。另外还讨论了观测数据的安全问题。 相似文献
6.
7.
8.
9.
10.
12.
13.
大数据技术为处理海量地震观测数据提供了一种新的数据存储与计算模式。为了解决现有基于关系数据库存储方案的读写速度低、用户并发度低和可扩展性差等问题,以地震前兆观测数据为例,在详细分析业务需求的基础上,提出了基于HBase和Open TSDB的地震大数据存储方案,搭建了大数据测试平台,完成了不同存储方案下查询、插入性能实验和并发性实验。实验结果表明,与关系数据库存储方案相比,基于HBase和Open TSDB的存储方案具有很好的可扩展性和并发性,经过优化后的HBase存储方案具有更高的读取和存储性能。 相似文献
14.
Sue Bowler 《Astronomy& Geophysics》2003,44(3):3.08-3.12
Sue Bowler draws together some of the NAM scientific sessions, to capture the flavour of this lively and popular meeting. 相似文献
15.
16.
17.
18.
Location Calibration Data for CTBT Monitoring at the Prototype International Data Center 总被引：3，自引：0，他引：3
—?Ground-truth information is essential for location calibration of the International Monitoring System network being developed under the Comprehensive Nuclear-Test-Ban Treaty. The objective of the calibration effort is to improve the accuracy of seismic event locations and to reduce the size of the error ellipse, both in automatic and in human analyst-reviewed bulletins, in order to meet the On-Site Inspection requirement for the size of the inspection area. Several databases were compiled and are maintained at the Prototype International Data Center (PIDC) to support calibration efforts. The Nuclear Explosion Database contains most readily accessible information about all nuclear explosions worldwide. The events in the Calibration Event Bulletin (CEB) carefully selected well located events from the PIDC Reviewed Event Bulletin and relocated using additional arrivals from regional networks requested from various National Data Centers. The Ground-Truth Database contains carefully selected events with known or well estimated location accuracies from the Nuclear Explosion Database, CEB, as well as from bulletins of U.S. National Earthquake Information Center and International Seismic Centre. It also contains data on chemical explosions and quarry blasts when confirmed by local or national authorities. Ground-truth events are subdivided into various ground-truth categories according to their location accuracy. The databases have been used in various calibration studies to derive and test corrections to improve event locations. Several location calibration techniques are briefly described. The validation test for any proposed operational change requires that the results meet the location calibration metrics developed and implemented at the PIDC. 相似文献
19.