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Designing a real-time seismic alert system

08 Jul 2014  | Janani Jayapandian, Nandhini Jayapandian

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Here is a design idea that describes a real-time seismic alert system that acquires seismic alert data from the European Mediterranean Seismological Centre (EMSC) public web page using the "Data Socket connectivity" library in LabVIEW as part of a virtual instrument.

The Real Time Earthquake Information (RTEI) services operate with the support of the Laboratory for Detection and Geophysics seismic group (LDG) by compiling real time parametric data received by email and provided by 66 seismological networks. EMSC provides several services in the field of rapid information on the European-Mediterranean seismicity and significant earthquakes worldwide.

Figure 1 shows a simple LabVIEW program using Data Socket open, read and close function libraries (figure 2) to acquire the worldwide seismic data from www.emsc-csem.org. The variant-to-data function (figure 3) converts any data type to string, decimal, or any required type as per the selector "Type".


Figure 1: LabVIEW program acquires seismic data from the URL and converts to String data for real-time display.


Figure 2: LabVIEW built-in function libraries for Data Socket open, read, and close.


Figure 3: LabVIEW Variant to Data conversion function library.



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