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Infrasound monitoring system

An infrasound and sub-system technology, which is applied in the direction of measuring ultrasonic/sonic/infrasonic waves, measuring devices, measuring heat, etc., can solve the problems of large volume, large power supply power consumption of power equipment, and large space occupation, etc., to achieve small size and easy Parameter setting and optimization, effect of low power consumption

Inactive Publication Date: 2013-10-23
INST OF ACOUSTICS CHINESE ACAD OF SCI
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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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Embodiment Construction

[0026] Such as figure 1 with 2 As shown, the present invention is composed of N data acquisition subsystems 1 and integrated processing subsystems 2. The data acquisition subsystem 1 includes a sensitive subsystem 11 and a signal acquisition and preprocessing subsystem 12. The sensitive subsystem 11 includes an infrasound sensor 111, a temperature and humidity sensor 112, and an anemometer 113, and a GPS receiving module 114. Among them, the infrasound sensor 111 is sensitive to infrasound information, converts it into a corresponding electrical signal and amplifies it. Processing; temperature and humidity sensor 112 realizes sensitivity to temperature and humidity information and converts it into corresponding electrical signals, anemometer 113 realizes sensitivity to wind speed information and converts it into corresponding electrical signals, GPS module 114 receives GPS Information and solve the time information and spatial information. The signal acquisition and preprocess...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/06G01N27/04G01K7/22G01P5/24
Inventor 杨亦春冯浩楠吕君滕鹏晓
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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