Specific region earthquake event alarm method

A technology for a specific area and event, applied in the direction of alarms and instruments, can solve the problems of inability to form events, high time cost, monitoring by seismic stations, etc., and achieve the effect of improving monitoring capabilities, easy to implement, and small amount of calculation.

Active Publication Date: 2017-09-19
CTBT BEIJING NAT DATA CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

The technology described by this patented method simplifies its calculations while also making them easier for implementation compared with previous methods that took longer or had issues such as being too complex or requiring more memory space than usual. This makes these techniques useful even at remote locations where there may be no access to main computer systems like servers due to lacking power supply.

Problems solved by technology

This technical problem addressed in this patents relates to improving the efficiency at detecting fires or other types of disasters caused by subterranean nuclear testing during oil drilling operations. Current methods require extensive human effort but still have limitations such as long latency times due to large amounts of data being searched over many locations within one hour.

Method used

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Embodiment

[0054]According to the above method, real-time processing is carried out on the array data for a specific area. First, the real-time data of each sub-station of the array is read, and the azimuth and slowness results of the signal with the largest energy in the data are calculated through F-K analysis. According to the azimuth angle Perform F-K beamforming on the array and the slowness calculation results to obtain the beamforming channel results, then perform STA / LTA signal detection calculations on the beamforming channel results, and finally compare the calculated azimuth, slowness, and signal results with the preset Threshold value is compared, and an event alarm is given for the signal that meets the conditions.

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Abstract

The invention relates to a specific region earthquake event alarm method. The method includes, at first, selecting an appropriate alarm array within a given time period and a specific area; reading the real-time data of each substation of the alarm array, and performing the real-time F-K calculation to obtain the azimuth and slowness result of the maximum energy signal in the data; and clustering the alarm array data to obtain the clustering channel result according to the obtained azimuth and slowness calculation result, comparing the calculated azimuth, slowness and signal detection results with pre-set thresholds, and performing event alarm on the eligible signals. The flow is concise, the computational complexity is less, and the method is easy to implement. The method solves the technical problem of array data processing for specific region nuclear explosion earthquake event alarm, further completes the monitoring capability of specific region nuclear explosion events, and has an important meaning in overseas underground nuclear test inspection.

Description

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Claims

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Application Information

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Owner CTBT BEIJING NAT DATA CENT
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