# US 11,442,187 B2 · Microseismic wireless monitoring, receiving and early warning system of rock

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- Number: US 11,442,187 B2
- Document ID: US11442187B2
- Status: Granted
- Kind: B2
- Application number: 16/833,084
- Filed: 2020-03-27
- Published: 2021-06-10
- Granted: 2022-09-13
- Earliest claimed: 2019-12-10
- Assignees: Dalian University of Technology
- Applicants: Dalian University of Technology
- Inventors: Shibin Tang; Jiaming Li
- Web page: https://patentgrep.com/patent/US11442187B2

## CPC

- G01V 1/288: {Event detection in seismic signals, e.g. microseismics (G01V1/36 takes precedence)}
- G01V 1/22: Transmitting seismic signals to recording or processing apparatus
- G01V 1/223: {Radioseismic systems}
- G01V 1/307: {for determining seismic attributes, e.g. amplitude, instantaneous phase or frequency, reflection strength or polarity}
- G08B 7/06: using electric transmission {, e.g. involving audible and visible signalling through the use of sound and light sources}
- G08B 21/10: responsive to calamitous events, e.g. tornados or earthquakes
- G08B 21/18: Status alarms (G08B21/02 takes precedence)
- G08B 25/08: using communication transmission lines {(G08B13/19658, G08B21/0286, G08B25/016 take precedence)}
- G01V: GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B29/02)
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS

## Abstract

The present invention discloses a microseismic wireless monitoring, receiving and early warning system of rock, which is connected with microseismic intelligent acquisition and data wireless transmission systems of rocks through a satellite. The microseismic wireless monitoring, receiving and early warning system of rock comprises a wireless receiving module, used for receiving a microseismic data packet processed by each microseismic signal wireless transmission system of rock through the satellite; a storage module, connected with the wireless receiving module, internally saving basic data information of each microseismic signal transmission system of the rock, automatically and correspondingly storing the microseismic data packet in real time and managing the microseismic data packet; a processing module, connected with the storage module and used for computing and analyzing to obtain microseismic source level information of a rock breakage signal and transmitting the information to the storage module to be stored.

## Claims

### Claim 1

A microseismic wireless monitoring, receiving and early warning system of rock, which is connected with n microseismic intelligent acquisition and data wireless transmission systems of rocks through a satellite, wherein n is a positive integer larger than 4; the microseismic wireless monitoring, receiving and early warning system of rock comprises:
a wireless receiver, used for receiving a microseismic data packet processed by each of the microseismic intelligent acquisition and data wireless transmission systems of rocks through a satellite, wherein the microseismic data packet comprises microseismic information and time information;
a storage module, connected with the wireless receiver, wherein the storage module utilizes a microseismic cloud platform built by utilizing a cloud computing technology; the storage module internally saves basic data information of the n microseismic intelligent acquisition and data wireless transmission systems of rocks, automatically and correspondingly stores the microseismic data packet in real time and manages the microseismic data packet; and
a processor, connected with the storage module and used for computing and analyzing the microseismic information to obtain a waveform parameter and a characteristic parameter of the microseismic information, classifying the microseismic information by utilizing neural network and deep learning artificial intelligence recognition technologies according to the waveform parameter and the characteristic parameter to obtain classification information of the microseismic information, and processing the classification information to obtain a-rock breakage information, then computing according to the rock breakage information as well as its corresponding time information in the microseismic data packet and the basic data information to obtain microseismic source position information and microseismic source generation time to further obtain microseismic source level information, wherein the processor transmits the waveform parameter, the characteristic parameter, the microseismic source position information, the classification information, the microseismic source generation time and the microseismic source level information to the storage module to be correspondingly stored.

### Claim 2 (depends on 1)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 1, wherein the wireless receiver comprises:
a signal receiver, used for receiving the microseismic data packet through the satellite; and
a data interface, connected with the signal receiver and used for transmitting the microseismic data packet to the storage module.

### Claim 3 (depends on 1)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 1, wherein the processor is internally installed with an expert database, and the processor is configured to:
compute and analyze the microseismic information to obtain the waveform parameter and the characteristic parameter of the microseismic information; classify the microseismic information by utilizing the neural network and deep learning artificial intelligence recognition technologies according to the waveform parameter and the characteristic parameter to obtain the classification information of the microseismic information, wherein the classification information comprises noise information, blasting vibration information, knock information, vehicle vibration information and rock breakage information; extract the rock breakage information after eliminating the noise information, the blasting vibration information, the knock information and the vehicle vibration information;
perform computation according to the rock breakage information as well as its corresponding time information in the microseismic data packet and the basic data information to obtain the microseismic source position information and the microseismic source generation time to further obtain the microseismic source level information; and
determine stability of a rock area corresponding to the rock breakage information according to the expert database, the microseismic source position information, the microseismic source generation time, the microseismic source level information, the waveform parameter and the characteristic parameter to obtain a determination result which comprises that the rock area corresponding to the rock breakage information is stable or instable, and then conduct a check; if the check result is not consistent with the determination result update the expert database through machine learning.

### Claim 4 (depends on 3)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 3, wherein the processor is further configured to:
determine instability probability if the rock area corresponding to the rock breakage information is determined to be instable, and transmit warning information if the instability probability is determined to be large, wherein the warning information comprises acoustic warning, SMS warning and photoelectric warning.

### Claim 5 (depends on 3)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 3, wherein in the step to obtain the microseismic source position information and the microseismic source generation time, the following computational formula is utilized:
√{square root over ((Xk−X0)2+(Yk−Y0)2+(Zk−Z0)2)}=v(tk−t0);
n equations are built through the formula to compute so as to obtain values of X0, Y0, Z0 and t0 and to further obtain the microseismic source position information and the microseismic source generation time;
in the formula: Xk, Yk and Zk represent three coordinates of a kth microseismic intelligent acquisition and data wireless transmission system of rock, X0, Y0 and Z0 represent three coordinates of the microseismic source position information, to represents the microseismic source generation time, tk represents receiving time, and v represents a propagation speed of an oscillating wave.

### Claim 6 (depends on 5)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 5, wherein the basic data information comprises:
position information, serial number information and partition information of each microseismic intelligent acquisition and data wireless transmission system of rock.

### Claim 7 (depends on 6)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 6, further comprising:
a display, connected with the storage module and used for displaying the position information, the serial number information and the partition information of each microseismic intelligent acquisition and data wireless transmission system of rock, the microseismic source generation time, the waveform parameter and the characteristic parameter of the oscillating wave, the time information, the microseismic source position information and the microseismic source level information.

### Claim 8 (depends on 7)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 7, further comprising:
a user terminal, connected with the storage module, wherein through the user terminal, a worker and a user query the position information, the serial number information and the partition information of each microseismic intelligent acquisition and data wireless transmission system of rock, the microseismic source generation time, the waveform parameter and the characteristic parameter of the oscillating wave, the time information, the microseismic source position information, the microseismic source level information and the stability of the rock area.

### Claim 9 (depends on 3)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 3, wherein the step to further obtain the microseismic source level information specifically comprises:
obtaining microseismic source energy according to the microseismic source position information, and then obtaining a microseismic source energy level according to the microseismic source energy; after obtaining the microseismic source energy level, obtaining microseismic source strength according to the microseismic source position information, and then obtaining a microseismic source strength level according to the microseismic source strength, wherein the microseismic source level information comprises the microseismic source energy level and the microseismic source strength level.

### Claim 10 (depends on 1)

The microseismic wireless monitoring, receiving and early warning system of rock according to claim 1, wherein the waveform parameter comprises:
amplitude, frequency, phase, wavelength and acceleration voltage amplitude.