Infrasound monitoring system

Abstract

The invention relates to an infrasound monitoring system comprising a number of data acquisition subsystems and a server. Each data acquisition subsystem comprises a sensitive subsystem and a signal acquisition and pretreatment subsystem which are integrated. Each sensitive subsystem comprises an infrasound sensor, a temperature and humidity sensor, an anemometer and a GPS module which are used for collecting infrasound, temperature, humidity, wind speed, space and time information which is then sent to the signal acquisition and pretreatment subsystem after being converted into an electric signal. Through the signal acquisition and pretreatment subsystem, four kinds of physical information of infrasound, temperature, humidity and wind speed are subjected to smoothing and processing operation; the signal acquisition and pretreatment subsystem is also used for finishing signal denoising and distortion correction operation and sending an obtained effective infrasound signal carrying the space and time information into the server. The server is used for processing the received effective infrasound signal through the kriging interpolation method and therefore an infrasound image can be generated from the received effective infrasound signal, and the server is also used for finishing infrasound source determining operation by using a time reversal technology.

Description

Technical field [0001] The invention relates to an infrasound monitoring system to realize the purpose of infrasound propagation monitoring and infrasound source localization caused by natural or artificial disasters. Background technique [0002] Long-term observations and domestic and foreign studies have shown that infrasound waves are generated during the occurrence of natural disaster events and man-made disaster events, and different types of disaster events can generate infrasound waves in different frequency bands. By arranging infrasound sensors in a large area to form a network monitoring system, real-time monitoring of infrasound information and mining infrasound information can be realized for the purpose of monitoring disaster events. [0003] At present, foreign CTBTO organizations use sensor networks to monitor infrasound. However, due to the limitation of the sensor frequency band and spatial location, the monitoring range is mainly 1Hz to 20Hz infrasound sources. S...

AI Technical Summary

Problems solved by technology

[0003] At present, foreign CTBTO organizations use sensor networks to monitor infrasound, but due to the limitations of the sensor frequency band and space location, the monitoring range is mainly 1Hz to 20Hz infrasound sources, and secondly, the volume of equipment such as acoustic sensors is too large , need to take up a lot of space, at the same time, there is power equipment supplying a lot of power consumption, and there must be personnel on duty

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