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基于Android的地震台站信息系统研发 总被引：1，自引：1，他引：0
为了解决地震台网加密后设备维护困难的问题,采用具有高效率的PHP Yii框架和Android开发地震台站信息系统。该软件系统建立地震台站综合数据库,对台站基础信息及相关设备进行实时查询,并集成百度导航和百度鹰眼服务。结果表明,该软件工作正常,实现最初设计功能,完善了偏远台站路径规划和导航功能,方便设备维修人员前往偏远台站巡台进行仪器维修工作。 相似文献
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无人职守地震台站远程监控系统的设计与实现 总被引：4，自引：0，他引：4
针对目前无人值守台站增加、台站系统运行维护存在的不足等现状,设计了一种基于传感技术及嵌入式技术的地震台站远程监控系统,以单片机为主控制器,实现对台站设备运行状态、UPS电源情况的检测;接收监控中心的指令,同时将检测到的异常信息及时上传至监控中心。与目前的技术系统相比,地震台站远程监控系统能实时自动判断出台站故障点位置,并通过短信、声音等形式进行报警,提升了故障排查效率。实际运行结果表明该系统运行可靠,有效提高了数字地震台网的工作效率。 相似文献
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物联网技术在浙江省地震台站设备管理中的应用 总被引：1，自引：1，他引：0
针对目前浙江省地震监测台站不断增多,地震设备管理存在严重不足的现状,设计一种基于射频识别(RFID)技术及现代通信技术的地震设备物联网化智能管理系统,实现对台站设备从采购、仓储、安装、维修、报废等整个生命周期的实时监控与盘点。与传统资产管理模式相比,该系统能确保地震台站设备管理精确和高效运行,并可为地震台站设备故障原因分析提供依据。 相似文献
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《地震地磁观测与研究》2016,(5)
针对浙江省地震监测台站不断增加,地震台站设备运维流程无序化、纸质化的管理现状,设计台站智能运维保障系统,实现台站运维智能化监控管理。与传统台站运维相比,该系统不仅实现台站运维资料的数字化管理,还通过引入抢修工单形式,保障台站抢修顺利进行。 相似文献
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在分析地震台站电源监控必要性基础上,设计一种基于手机平台的实时电源监视和控制系统,用于台站日常观测、应急避雷或设备启动复位等操作。本文介绍了该装置的基本原理、硬件构成及STC90C51RC单片机的C51程序设计和下位机的VB程序设计。在怀来地震台的实际应用效果说明,短信控制具有方便快捷,反馈及时的特点,适用于地震前兆台站日常管理和仪器维护。 相似文献
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江苏省地震台站巡检系统架构 总被引：1，自引：0，他引：1
地震台站是开展地震观测和地震科学研究的基层机构,台站运行和维护关系到地震数据质量。以江苏省地震台站巡检系统为研究对象,提出一种基于TOGAF的地震台站巡检系统架构,探索适合台站巡检的业务构架、数据架构、应用架构和技术架构,并给出地震台站巡检系统总体架构。该架构能够有效整合现有地震台站巡检系统应用,降低地震台站管理信息化建模难度,提高信息化架构规划和实施的可行性。 相似文献
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《Advances in water resources》2005,28(7):701-710
The patterns of temporal variations of precipitation (P), streamflow (SF) and baseflow (BF) as well as their nitrate-nitrogen (nitrate) concentrations (C) and loads (L) from a long-term record (28 years) in the Raccoon River, Iowa, were analyzed using variogram and spectral analyses. The daily P is random but scaling may exist in the daily SF and BF with a possible break point in the scaling at about 18 days and 45 days, respectively. The nitrate concentrations and loads are shown to have a half-year cycle while daily P, SF, and BF have a one-year cycle. Furthermore, there may be a low-frequency cycle of 6–8 years in C. The power spectra of C and L in both SF and BF exhibit fractal 1/f scaling with two characteristic frequencies of half-year and one-year, and are fitted well with the spectrum of the gamma distribution. The nitrate input to SF and BF at the Raccoon watershed seems likely to be a white noise process superimposed on another process with a half-year and one-year cycle. 相似文献
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燕郊等测点迁移优化与地磁观测研究 总被引：1，自引：2，他引：1
为优化地磁观测条件，开展了燕郊、夏垫等测点迁移工作；按照测眯迁移原则与实施技术方案，完整地收集并整理了地质构造与地球物理等方面的基本资料；进行了野外实地勘察，磁场梯度的测量，确定了新测点，在新老测点上进行了较长时间的地磁场对比观测；应用多种方法分析研究了地磁对比观测资料，结果表明，新老测点与有关测点的地磁变化具有良好的一致性，并得到了新老测点之间的地磁数据的按点差。 相似文献
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We rederive and generalize hyperbolic moveout formulae for the common-midpoint (CMP) gather and for the zero-offset (ZO) section that can be efficiently used for macro-model-independent reflection imaging in two-dimensional media. The hyperbolic moveout formulae for the common-midpoint gather are obtained from different Taylor series expansions of a particular parametric moveout surface defined in the multicoverage data space. Such a moveout surface involves three kinematic wave-field attributes of two hypothetical waves, which have to be determined by a coherency analysis. By using hyperbolic moveout curves in the CMP gather and in the ZO section one can determine these attributes in two steps. The relationships between the local shapes of the interfaces and the attributes of the hypothetical wave-fields attributes are considered by means of geometrical optics. The determination of these attributes allows to perform a macro-model-independent ZO simulation and a subsequent inversion. 相似文献
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Assessing Groundwater Depletion and Dynamics Using GRACE and InSAR: Potential and Limitations 
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下载免费PDF全文 Pascal Castellazzi Richard Martel Devin L. Galloway Laurent Longuevergne Alfonso Rivera 《Ground water》2016,54(6):768-780
In the last decade, remote sensing of the temporal variation of ground level and gravity has improved our understanding of groundwater dynamics and storage. Mass changes are measured by GRACE (Gravity Recovery and Climate Experiment) satellites, whereas ground deformation is measured by processing synthetic aperture radar satellites data using the InSAR (Interferometry of Synthetic Aperture Radar) techniques. Both methods are complementary and offer different sensitivities to aquifer system processes. GRACE is sensitive to mass changes over large spatial scales (more than 100,000 km2). As such, it fails in providing groundwater storage change estimates at local or regional scales relevant to most aquifer systems, and at which most groundwater management schemes are applied. However, InSAR measures ground displacement due to aquifer response to fluid‐pressure changes. InSAR applications to groundwater depletion assessments are limited to aquifer systems susceptible to measurable deformation. Furthermore, the inversion of InSAR‐derived displacement maps into volume of depleted groundwater storage (both reversible and largely irreversible) is confounded by vertical and horizontal variability of sediment compressibility. During the last decade, both techniques have shown increasing interest in the scientific community to complement available in situ observations where they are insufficient. In this review, we present the theoretical and conceptual bases of each method, and present idealized scenarios to highlight the potential benefits and challenges of combining these techniques to remotely assess groundwater storage changes and other aspects of the dynamics of aquifer systems. 相似文献