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测震数据对象关系映射软件包设计 总被引:1,自引:1,他引:0
在深入研究JOPENS数据库数据模型,SEED文件格式基础上,通过对Jrdseed开源软件包进行继承、功能扩展与封装,设计实现Java环境的测震数据对象关系映射软件包。即使不了解测震数据存储标准,也能应用该程序,只需调用该通用软件包接口,便能高效便利的从多种数据来源(来自JOPENS数据库中的连续波形、事件波形以及SEED文件)轻松获取解压缩处理后的测震数据,使研发效率获得大幅提升。 相似文献
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介绍一种B/S架构下测震实时波形可视化方法,能够自动侦测Jopens数据库中数据,并解压缩测震waveform数据表的连续波形数据,将数据以字符串形式进行存储。通过应用fusionchart实现动态实时展示。在实时地震波形的移植性上推进一步,为地震数据的展示与对外界的服务奠定了基础。 相似文献
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禁核试北京国家数据中心(NDC)是我国与CTBTO/IDC进行数据交换的唯一节点,完成汇集、保存和处理我境内各IMS台站的监测数据,同时向国内用户提供境内IMS台站监测数据。NDC目前主要接入、处理、转发CD数据,但国内履约技术支持单位和协作单位多采用miniSEED数据,并使用JOPENS系统的流服务来交换数据,为了与其进行数据交换或向其分发监测数据,NDC需要具备分发miniSEED数据流的能力。文中设计的软件,是NDC自主开发的应用工具软件之一,可作为JOPENS系统流服务器的本地或远程仪器适配器,将CD数据流准实时转换为miniSEED流或将历史CD数据转换为miniSEED数据流,并通过JOPENS流服务器分发境内IMS台站数据,扩展了NDC的实时数据服务能力。 相似文献
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CDSN台SEED数据格式的软件开发 总被引:2,自引:0,他引:2
本软件可以把miniSEED格式数字地震数据转换为标准的SEED格式数据,满足了台站及台网的要求,提高了台站的技术管理水平和工作效率。 相似文献
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以测震台网Jopens系统流服务为依托,根据NetSeis/IP协议通讯标准实时接收数据包,解析MiniSEED格式波形数据,监控台站波形中断情况,实现基于REST架构的台站状态显示,结合震中附近地质构造信息,快速判定地震破坏扩展方向,圈定极震区范围,为地震应急决策服务. 相似文献
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依托公共安全信息化工程,测震台网数据管理平台在数据资源池环境下,采用分层架构和模块化开发,实现了实时流波形接入和存储、站网基础信息管理、常规数据产品产出、针对特定地震的产品产出、波形数据质量分析等测震台网核心业务的信息化。通过平台的接口和界面,事件波形处理与服务、数据质量分析、震源参数基础数据库建设等测震台网业务取得了长足进步。该平台具有业务集成性、功能实用性、资源共享性和技术先进性等特点,有效提升了测震台网信息化水平,为测震台网现代化发展发挥了积极作用。 相似文献
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利用C++与MATLAB相结合,对NOAA网站上公开可下载的数据进行与地震监测相关的气象三要素数据提取;我国境内共有1076个台站的数据可用,数据可追溯到20世纪50年代。通过本次编写的数据提取软件,可对文件中气温、气压、降雨(采样率3小时/次)进行自动提取,并对错误数据进行自动识别;为地震前兆观测中气象干扰的剔除提供了丰富的源数据。 相似文献
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《Ground Water Monitoring & Remediation》2000,20(4):82-86
The objective of this study was to confirm if MTBE, which is not intentionally added to fuels other than gasoline, is a contaminant in heating oil and diesel fuel. The study entailed conducting a statewide sampling program of heating oil and diesel fuel in Connecticut. An analytical method was developed to conduct analyses of heating oil and diesel fuel for MTBE in the milligram per liter (mg/L) range. The method involved equilibrating product with water to extract MTBE followed by static head-space analysis on aliquots of the water. Analyses were conducted using a gas chromatograph with a MTBE specific column. The statewide sampling program confirmed the widespread occurrence of MTBE in heating oil and diesel fuel. MTBE was detected in all samples collected during our sampling program at concentrations ranging from 9.7 to 906 mg/L in heating oil (26 samples), and from 74 to 120 mg/L in diesel fuel (five samples). Based on these ranges. MTBE concentrations in ground water in the vicinity of heating oil and diesel fuel releases could exceed thousands of micrograms per liter. Our analysis would suggest that the levels of heating oil and diesel fuel contamination observed could result from the commingling of only a few parts gasoline with thousands of parts of these fuels. The extent to which MTBE occurs in heating oil and diesel fuel nationwide is not known, but our data suggests that it may be widespread. 相似文献
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阐述了矩阵多分辨分析理论中的标准形式与非标准形式,并以Hilbert算子为例,说明了算子多分辨表示的压缩效果,为小波域偏移算法奠定了理论基础.从三维雷达波动方程出发,利用爆炸反射原理和浮动坐标变换,推导出三维探地雷达波动方程差分格式,并通过方程分裂算法及小波多分辨算法,在小波域求解波场外推矩阵,进而得到探地雷达小波域三维波动方程偏移算法,在此基础上,开发了探地雷达小波域偏移处理程序,并把该程序应用于三个球体空洞的3-D正演结果及实际的雷达数据中,通过对比偏移处理前后的雷达资料,得知该三维偏移算法能使3-D正演剖面中的反射波归位、绕射波收敛,极大地提高了雷达剖面的分辨率,有利于探地雷达资料的地质解释. 相似文献
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通过对MDT地层压力数据以及地层压力梯度线形态的分析,提出了利用三次样条插值函数将有限个数据点的地层压力梯度线进行深度等间距采样,以得到连续分布的地层压力梯度线.在抛物线形式的地层压力梯度线上,油水界面对应于该抛物线的顶点.根据最大值原理可以在地层压力梯度线上提取油藏油水界面深度,利用Fortran语言编制了相应的计算机程序,实现了油藏油水界面自动提取的目的.利用该程序可以减小油田现场处理过程中带入的额外误差,节省操作人员的处理时间,减少工作量.实际应用表明,该方法是可靠的,计算结果完全符合油田储量计算的误差标准,利用其获取的结果真实有效. 相似文献
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王3井、王4井水化学测项数据录入及报表打印程序功能 总被引:1,自引:1,他引:0
简要介绍了王3井、王4井水化学测项数据录入及报表打印程序,从DBF数据库的建立、Excel报表模板的建立、程序实现3个方面加以阐述。 相似文献
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E. P. Zolotukhin D. B. Korolenko A. S. Romankov L. A. Korolenko 《Seismic Instruments》2018,54(4):417-423
Problems of software development for basic seismometric monitoring of the technical condition of buildings and structures are considered. A client–server architecture is chosen for the recording program of the system. The server component provides interconnection with the equipment, data acquisition, storage, and processing. The client component provides the user (operator) interface, hardware configuration and application, and representation of system tasks and results in user-friendly form. The seismic monitoring system operates in two modes: the main one includes the isolation and recording of seismic events with assessment of their impact on a structure using the MSK-64 scale; the advanced mode provides recording of microseismic vibrations according to the schedule (specified by the operator) for monitoring the technical condition of a structure. Moreover, the system continuously records oscillations of an object. Thus, the server program writes and stores three types of files: seismic events, monitoring, and continuous recording. When a seismic event is detected or system malfunctions arise, responsible personnel are notified by e-mail and SMS according to an approved list. All operator actions, as well as system functioning events, are fixed in the message log and system log. The client program provides visualization of data on oscillations at observation sites in the form of oscillation seismograms, current signal-amplitude spectra, and vibration-level histograms from the measurement channels for a selected component. All information important for the operator (display of sensors and their status, current configuration, seismograms of corresponding measurement channels, and a list of latest messages in the system) is presented in a mnemonic diagram, which is one of the main working windows of the application. The main specific features of the program are support of different types of equipment (seismic stations), independence from the number of connected seismic stations/recorders, wide possibilities in configuring the system hardware and the application itself, the possibility of unlimited user (client) connections for browsing seismometric data, and multilanguage support. 相似文献
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通过分析MSDP二进制震相文件结构特点,利用Visual Basic语言研发震相数据提取软件,自动提取震相文件数据,并形成地震目录、地震报告以及双差定位研究等所需格式的原始数据,将研究人员从繁琐的数据格式转换中解脱出来,以大幅度提高科研进程和准确度。 相似文献