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Wireless intelligent data transmission system and method for micro-seismic monitoring

A data transmission method and technology for a data transmission system, applied in signal transmission systems, general control systems, seismic signal transmission, etc., can solve the problems of high data storage pressure and high communication traffic costs, reduce data volume costs, facilitate collection or The effect of remote transmission and avoiding data redundancy

Inactive Publication Date: 2020-01-14
贵州正厦工程检测技术咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a wireless intelligent data transmission system and method for microseismic monitoring to solve the problems of high data storage pressure and high communication traffic costs in the existing microseismic monitoring digital transmission system

Method used

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  • Wireless intelligent data transmission system and method for micro-seismic monitoring
  • Wireless intelligent data transmission system and method for micro-seismic monitoring
  • Wireless intelligent data transmission system and method for micro-seismic monitoring

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Embodiment 1

[0045] Specific embodiment 1 of the present invention discloses a wireless intelligent data transmission method for microseismic monitoring, figure 1 A flowchart of the method is shown, comprising the following steps:

[0046] Step S1: Real-time acquisition of on-site microseismic monitoring signals by means of AD sampling;

[0047] Step S2: Using threshold judgment and statistical judgment methods to perform signal detection on the on-site microseismic monitoring signal, remove noise, and obtain a complete microseismic signal;

[0048] Specifically, a threshold interval is set, and the threshold interval is set based on the amplitude of the noise signal. When the amplitude of the microseismic monitoring signal at a certain point exceeds the set threshold interval, the previous point of the point is used as the starting point of the complete microseismic signal, and the microseismic monitoring signal is continuously collected from the starting point. If in the collection proc...

Embodiment 2

[0061] In Embodiment 2 of the present invention, a wireless intelligent data transmission system for microseismic monitoring is disclosed. The system is set up corresponding to the transmission method in Embodiment 1, and the schematic diagram is as follows figure 2 As shown, it includes: AD acquisition module, signal detection module, microseismic signal processing module, and signal transmission module; among them,

[0062] The AD acquisition module is used to collect the on-site microseismic monitoring signal in real time through the AD sampling method;

[0063] The signal detection module is connected to the AD acquisition module, and uses threshold judgment and statistical judgment methods to perform signal detection on the on-site microseismic monitoring signal to obtain a complete microseismic signal;

[0064] The microseismic signal processing module is connected with the signal detection module, and is used to perform fast Fourier transform on the complete microseis...

Embodiment 3

[0073] In Embodiment 3 of the present invention, an application example of the method in Embodiment 1 is disclosed, which is convenient for deepening the understanding of the method of the present invention.

[0074] Use the single-chip microcomputer to control the AD sampling chip for data acquisition, typical data such as image 3 As shown, the number of sampling points for this data collection is 20000000.

[0075] The single-chip microcomputer carries out signal detection to the above-mentioned data according to the method in embodiment 1, and the detected signal 1 is as Figure 4 As shown above, the number of points of signal 1 is 20,000, and then the signal is analyzed by fast Fourier transform. The signal spectrum is as follows Figure 4 shown below. The frequency of this signal is less than 1KHz.

[0076] Low-pass filter the signal 1 according to the cut-off frequency of 1KHz, and perform 1:100 extraction at the same time, the waveform after extraction is as follows...

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Abstract

The invention relates to a wireless intelligent data transmission system and method for micro-seismic monitoring, belongs to the technical field of micro-seismic monitoring, and solves the problems ofhigh data storage pressure and high communication traffic cost of the existing micro-seismic monitoring data transmission system. The method comprises the steps of collecting on-site micro-seismic monitoring signals in real time through AD sampling; carrying out signal detection on the on-site micro-seismic monitoring signals by using a threshold judgment and statistical judgment method to obtaincomplete micro-seismic signals; performing fast Fourier transform on the complete micro-seismic signals, and performing spectral analysis on the result after the fast Fourier transform to obtain a signal dominant frequency; performing low-pass filtering processing on the result after the Fourier transform according to the signal dominant frequency to obtain filtered micro-seismic signals; according to the signal frequency, performing data extraction on the filtered micro-seismic signals; and transmitting the signals after data extraction to a monitoring center. According to the method, the data storage pressure of the monitoring center is effectively reduced, and the communication traffic cost is reduced.

Description

technical field [0001] The invention relates to the technical field of microseismic monitoring, in particular to a wireless intelligent data transmission system and method for microseismic monitoring. Background technique [0002] Earthquake monitoring microseismic signals cover the frequency range of 0.1Hz-25KHz, and the signal frequency is wide. In theory, at least AD sampling with a sampling rate greater than 50KSPS should be used. The actual sampling rate in engineering applications should be greater than 200KSPS. In this way, a single acquisition node collects 24bit. Three-channel data, the amount of data per minute is: 200Kbit*24*3*60=843Mbit=105MByte, the data volume of a day is 105MByte*24*60=148GByte, if all the real-time monitoring data are directly transmitted to the monitoring terminal, communication Traffic costs are high and data storage pressure is high, but the actual situation is that most of the time no microseismic events occur. [0003] Existing routines...

Claims

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Application Information

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IPC IPC(8): G01V1/22G05B19/042G08C17/02H02J7/35
CPCG01V1/223G05B19/0428G05B2219/2612G08C17/02H02J7/35
Inventor 张弢曾岱年陈世万韩志伟李丽鹏
Owner 贵州正厦工程检测技术咨询有限公司
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