Coal mine rock burst disaster acoustoelectric monitoring device based on 5G communication

Abstract

The utility model discloses a coal mine rock burst disaster acoustoelectric monitoring device based on 5G communication, which comprises an electromagnetic radiation antenna, an acoustic emission sensor, a microseismic sensor, an ultralow frequency sensor, a temperature sensor and an acoustoelectric monitoring device host, the electromagnetic radiation antenna, the acoustic emission sensor, the microseismic sensor, the ultralow frequency sensor and the temperature sensor are connected with the acoustoelectric monitoring device host, and collected data are processed by the acoustoelectric monitoring device host and then sent to a ground server database through a 5G network. Electromagnetic radiation signals, acoustic emission signals, micro-seismic signals, ultralow-frequency signals, temperature signals and measuring point position image data which are generated by deformation and fracture of coal and rock mass are monitored in a movable mode, the monitoring data are directly transmitted to a ground server database from the underground in time through a 5G communication module, and it is ensured that the data are safe and reliable; and the method can be used for risk assessment and forecast monitoring of coal mine rock burst disasters.

Description

Technical Field

[0001] The utility model relates to an acoustic and electrical monitoring device for coal mine disasters, and in particular to an acoustic and electrical monitoring device for coal mine rock burst disasters based on 5G communication. Background Art

[0002] As coal mining depths continue to increase in my country, the in-situ stress in coal seams has significantly increased, highlighting the problem of coal rock dynamic hazards such as rock bursts, and making prevention increasingly difficult. The average mining depth of key domestic coal mines has reached 700 meters, with the deepest exceeding 1,500 meters. The threat of rock bursts and other coal rock dynamic hazards facing my country's coal mines is growing. Currently, early monitoring and forecasting of precursor information for severe and extremely severe rock bursts has become a top priority in my country's coal mine safety accident prevention efforts.

[0003] Coal mine rock burst disasters not only cause casualties but also severely damage mining spaces such as tunnels and disrupt mine ventilation systems. As of May 2024, 1,128 mines in my country had been registered as experiencing severe coal and rock dynamic disasters. As coal mining continues to increase in depth, these disasters will inevitably become more severe, and prevention will become increasingly difficult.

[0004] Underground coal and rock masses are subject to the combined effects of external stresses, such as mining impacts and crustal stress shifts, causing deformation, crack propagation, and rapid failure. During this process, energy absorbed by the coal and rock masses from the outside world, as well as energy stored during formation, is dissipated in various forms, such as elastic energy, expansion energy of compressed gases, thermal energy, acoustic energy, and electromagnetic energy. Therefore, by monitoring the spatiotemporal variations in electromagnetic radiation, acoustic emission, microseismic, ultra-low frequency, and temperature signals generated by this energy dissipation, it is possible to monitor and predict coal and rock dynamic hazards such as rock bursts.

[0005] The technologies and equipment currently used for predicting the danger of rock burst disasters using static methods (drill cuttings method, hydraulic support method, stress monitoring method and other comprehensive indicator methods) require large engineering workload, long prediction operation time, poor safety, and are easily affected by human factors and uneven distribution of coal bodies. The prediction results can only represent the local and static dangers in the nearby area, and do not utilize the geophysical signal characteristics of the creep, fission and energy dissipation processes of coal and rock masses. They cannot represent the disaster dangers of the entire cycle of gestation, development and occurrence of coal and rock burst disasters.

[0006] In recent years, great progress has been made in the research of electromagnetic radiation and acoustic emission characteristics of coal and rock and their applications. The utility model patent "Method and device for predicting gas-containing coal and rock concrete disasters" (ZL98111185.8) and the utility model patent "A mobile multi-channel electromagnetic radiation monitoring system" (ZL200720127916.9) predict the danger of coal and rock dynamic disasters such as rock burst by non-contact monitoring of the electromagnetic radiation signals and their changing patterns generated when the loaded coal and rock mass deforms and fractures. However, since it can only monitor electromagnetic radiation signals, it cannot simultaneously monitor acoustic emission signals, microseismic signals, ultra-low frequency signals, and temperature signals at the measuring point. It is also impossible to take pictures of the monitoring location and cannot transmit data from the well to the ground in a timely manner through 5G signals.

[0007] Existing mobile monitoring of coal mine rock burst generally has some common problems such as: 1) The monitoring device needs to be brought back from underground to the ground for data storage and analysis. Due to the harsh conditions underground in coal mines, the USB flash drive used to store data is often damaged due to collisions, vibrations, moisture and other problems during the journey, resulting in complete data loss; 2) After the monitoring personnel complete the data transmission on the ground, they tend to forget to manually clear the data in the host and then go directly down to the mine for the next monitoring, resulting in confusion in the data packets of the measuring points; 3) Since mobile monitoring requires personnel to go to designated measuring points for monitoring operations, due to human factors, monitoring personnel often slack off and fail to go to the designated location underground for monitoring, resulting in the problem of inaccurate monitoring data; 4) There is a lack of monitoring of temperature data, and it is impossible to timely understand the changes in the ambient temperature in the monitoring area.

[0008] There is currently no mature technology or equipment for using 5G communication technology to directly transmit electromagnetic radiation data, acoustic emission data, microseismic data, ultra-low frequency data, temperature data, and measurement point location image data monitored underground to the ground server database for timely storage and analysis. Utility Model Content

[0009] In response to the problems existing in the above-mentioned existing technologies, the utility model provides an acoustic and electrical monitoring device for coal mine rock burst disasters based on 5G communication. It monitors the electromagnetic radiation signals, acoustic emission signals, microseismic signals, ultra-low frequency signals, temperature signals and measuring point location image data generated by the deformation and fracture of coal and rock masses in a mobile manner, and uses the 5G communication module to transmit the monitoring data directly from the underground to the ground server database in a timely manner, ensuring the security and reliability of the data and improving the timeliness of data analysis. It can be used for the risk assessment and forecast monitoring of coal mine rock burst disasters.

[0010] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an acoustic and electrical monitoring device for coal mine rock burst disasters based on 5G communication, including: an electromagnetic radiation antenna, an acoustic emission sensor, a microseismic sensor, an ultra-low frequency sensor, a temperature sensor, and an acoustic and electrical monitoring device host. The electromagnetic radiation antenna, acoustic emission sensor, microseismic sensor, ultra-low frequency sensor, and temperature sensor are connected to the acoustic and electrical monitoring device host. The electromagnetic radiation signals, acoustic emission signals, microseismic signals, ultra-low frequency signals, and temperature signals collected by the electromagnetic radiation antenna, acoustic emission sensor, microseismic sensor, ultra-low frequency sensor, and temperature sensor are sent to the acoustic and electrical monitoring device host for processing. After processing, the acoustic and electrical monitoring device host sends them to the ground server database via the 5G network.

[0011] Furthermore, the ground server database is a ground server database of a coal mine safety detection system.

[0012] Furthermore, it also includes a camera module for collecting image information from the detection points, and the camera module is installed in the host of the acoustic and electrical monitoring device.

[0013] Furthermore, the host of the acoustic and electrical monitoring device includes: a signal amplifier module, a data processing module, a data storage module, a 5G communication module, a liquid crystal display module, a keyboard control module, a camera module, and a battery pack power supply module. The signal amplifier module, data storage module, liquid crystal display module, keyboard control module, and camera module are all connected to the data processing module, and the 5G communication module is connected to the data storage module. The data stored in the data storage module is sent to the ground server database through the 5G communication module. The battery pack power supply module supplies power to the host of the acoustic and electrical monitoring device, wherein the data transmission in the data processing module is automatically cleared after completion.

[0014] The host of the acoustic and electrical monitoring device can store the monitoring data in real time underground, and can transmit the data directly to the ground server database through the 5G communication module.

[0015] Furthermore, it also includes: a spare I / O module, which is connected to the data processing module and is used to connect to the expansion device as needed.

[0016] Furthermore, the battery pack power supply module is provided with a storage battery and a charging interface module.

[0017] The beneficial effects of the utility model are:

[0018] 1) The monitoring data can be transmitted from the underground to the surface server database in a timely manner, ensuring data security and reliability, and improving the timeliness of data analysis. This solves the problem of USB flash drives being damaged and data being completely lost due to collisions, vibrations, and interface problems when bringing the monitor back from the underground.

[0019] 2) After the monitoring data of each measuring point is transmitted to the surface server database in the well, the data in the data storage module inside the host is automatically cleared. This solves the problem that personnel often forget to manually clear the host data when transmitting data on the ground and then go directly down the well for the next monitoring, resulting in confusion in the measuring point data packets;

[0020] 3) Photos are taken by the camera module and automatically transmitted from the underground well to the surface server database via the 5G communication module, solving the problem of inaccurate monitoring data caused by monitoring personnel slacking off and not monitoring at the designated location underground.

[0021] 4) The monitoring of temperature data has been added, which can timely understand the changes in ambient temperature in the monitoring area and can be compared and analyzed with the other four types of data, providing more effective data for the coal mine safety detection system, which can be used for coal mine rock burst disaster risk assessment and forecast monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the use process of the utility model;

[0024] In the figure: 1. Electromagnetic radiation antenna; 2. Acoustic emission sensor; 3. Microseismic sensor; 4. Ultra-low frequency sensor; 5. Temperature sensor; 6. Signal amplifier module; 7. Data processing module; 8. Data storage module; 9. 5G communication module; 10. LCD display module; 11. Keyboard control module; 12. Camera module; 13. Battery pack power supply module; 14. Backup I / O module. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] like Figure 1As shown, a coal mine rock burst disaster acoustic and electrical monitoring device based on 5G communication includes: an electromagnetic radiation antenna 1, an acoustic emission sensor 2, a microseismic sensor 3, an ultra-low frequency sensor 4, a temperature sensor 5, and an acoustic and electrical monitoring device host. The electromagnetic radiation antenna 1, acoustic emission sensor 2, microseismic sensor 3, ultra-low frequency sensor 4, and temperature sensor 5 are connected to the acoustic and electrical monitoring device host. The electromagnetic radiation signal, acoustic emission signal, microseismic signal, ultra-low frequency signal, and temperature signal collected by the electromagnetic radiation antenna 1, acoustic emission sensor 2, microseismic sensor 3, ultra-low frequency sensor 4, and temperature sensor 5 are sent to the acoustic and electrical monitoring device host for processing. After processing, the acoustic and electrical monitoring device host sends the processed signals to the ground server database via the 5G network.

[0028] The ground server database is the ground server database of the coal mine safety detection system, which provides data for the coal mine safety detection system and can be used for coal mine rock burst disaster risk assessment and forecast monitoring.

[0029] The coal mine rock burst disaster acoustic and electrical monitoring device based on 5G communication also includes a camera module for collecting image information from the detection point. The camera module 12 is installed in the host of the acoustic and electrical monitoring device.

[0030] The host of the acoustic and electrical monitoring device includes: a signal amplifier module 6, a data processing module 7, a data storage module 8, a 5G communication module 9, a liquid crystal display module 10, a keyboard control module 11, a camera module 12, and a battery pack power supply module 13. The signal amplifier module 6, the data storage module 8, the liquid crystal display module 10, the keyboard control module 11, and the camera module 12 are all connected to the data processing module 7, and the 5G communication module 9 is connected to the data storage module 8. The data stored in the data storage module 8 is sent to the ground server database through the 5G communication module 9. The battery pack power supply module 13 supplies power to the host of the acoustic and electrical monitoring device.

[0031] The data processing module 7 automatically clears the data after the data transmission is completed.

[0032] The data storage module 8 is provided with a temporary data storage area and an abnormal data storage area. The temporary data storage area is used to store data processed by the data processing module 7 and transmitted directly through the 5G network. If the transmission is unsuccessful, the unsuccessful data is stored from the temporary data storage area to the abnormal data storage area, and is automatically cleared after the transmission is completed; the abnormal data storage area is used to store data processed by the data processing module 7 that cannot be directly transmitted through the 5G network temporarily, and is automatically cleared after the transmission is completed.

[0033] The electromagnetic radiation antenna 1 , the acoustic emission sensor 2 , the microseismic sensor 3 , the ultra-low frequency sensor 4 , and the temperature sensor 5 are all connected to the signal amplifier module 6 .

[0034] The host of the acoustic and electrical monitoring device can store the monitoring data in real time underground, and can transmit the data directly to the ground server database through the 5G communication module 9.

[0035] The host of the acoustic and electrical monitoring device further includes: a spare I / O module 14, which is connected to the data processing module 7 and is used to connect to an expansion device as needed to add other functions as needed.

[0036] The battery pack power supply module 13 is equipped with a battery and a charging interface module, which can provide power for the signal amplifier module 6, the data processing module 7, the data storage module 8, the 5G communication module 9, the LCD module 10, the keyboard control module 11, the camera module 12, and the backup I / O module 14, and is specifically set according to needs.

[0037] like Figure 2 As shown, when using the coal mine rock burst disaster acoustic and electrical monitoring device based on 5G communication, it is necessary to determine the key monitoring area within the mine working face according to the actual needs of the underground site. Before going down the mine, the server software or the monitoring host is used to set the host monitoring parameters in advance through the LCD display module 10 and the keyboard control module 11;

[0038] Bring the monitoring device to the underground working surface and monitor in sequence according to the location of the measuring points;

[0039] During the monitoring process, the data of electromagnetic radiation signals, acoustic emission signals, microseismic signals, ultra-low frequency signals and temperature signals are directly transmitted from the underground to the surface server database through the 5G communication module 9;

[0040] During the monitoring process, the camera module 12 automatically starts according to the set requirements, takes pictures three times, and the interval between each picture is 10 seconds. The pictures are automatically transmitted from the underground to the ground server database through the 5G communication module 9;

[0041] After the monitoring of a single measuring point is completed and the data is transmitted from the underground to the ground server database through the 5G communication module 9, the host of the acoustic and electrical monitoring device will automatically clear the original data of the measuring point to ensure that the measuring point can be monitored normally next time.

[0042] During the monitoring process, if a 5G signal blind spot is encountered, the monitoring data will be automatically saved in the data storage module 8 of the host. When the signal coverage area is reached, the host will automatically prompt to upload the relevant measurement point data.

[0043] After all underground measuring points are monitored, the monitoring device is brought back to the surface and the monitoring host is charged for next use.

[0044] The connections in the coal mine rock burst disaster acoustic and electrical monitoring device based on 5G communication are all made by connecting wires or communication lines so that it can realize the above functions.

[0045] This technology and its supporting instruments can also be used to monitor and predict the emergence of other dynamic disasters such as tunnel stability monitoring, mine tunnel roof collapse, and instability of large concrete buildings. It can also be used to study the deformation and fracture mechanisms and processes of materials such as rock concrete.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coal mine rock burst disaster acoustic and electrical monitoring device based on 5G communication, characterized in that: include: Electromagnetic radiation antenna, acoustic emission sensor, microseismic sensor, ultra-low frequency sensor, temperature sensor, and main body of the acoustic and electric monitoring device. The electromagnetic radiation antenna, acoustic emission sensor, microseismic sensor, ultra-low frequency sensor, and temperature sensor are connected to the main body of the acoustic and electric monitoring device. The electromagnetic radiation signals, acoustic emission signals, microseismic signals, ultra-low frequency signals, and temperature signals collected by the electromagnetic radiation antenna, acoustic emission sensor, microseismic sensor, ultra-low frequency sensor, and temperature sensor are sent to the main body of the acoustic and electric monitoring device for processing. After processing, the main body of the acoustic and electric monitoring device sends them to the ground server database via the 5G network.

2. The 5G communication-based acoustic and electrical monitoring device for coal mine rock burst disasters according to claim 1 is characterized in that: The ground server database is a ground server database of a coal mine safety detection system.

3. The 5G communication-based acoustic and electrical monitoring device for coal mine rock burst disasters according to claim 1 is characterized in that: Also includes: The camera module is used to collect image information from the detection points, and the camera module is installed in the host of the acoustic and electrical monitoring device.

4. The 5G communication-based acoustic and electrical monitoring device for coal mine rock burst disasters according to claim 3 is characterized in that: The host of the acoustic and electrical monitoring device includes: a signal amplifier module, a data processing module, a data storage module, a 5G communication module, a liquid crystal display module, a keyboard control module, a camera module, and a battery pack power supply module. The signal amplifier module, data storage module, liquid crystal display module, keyboard control module, and camera module are all connected to the data processing module. The 5G communication module is connected to the data storage module. The data stored in the data storage module is sent to the ground server database through the 5G communication module. The battery pack power supply module supplies power to the host of the acoustic and electrical monitoring device, and the data transmission in the data processing module is automatically cleared after completion.

5. The device for acoustic and electrical monitoring of coal mine rock burst disasters based on 5G communication according to claim 4 is characterized in that: The data storage module is provided with a temporary data storage area and an abnormal data storage area. The temporary data storage area is used to store data processed by the data processing module and directly transmitted through the 5G network. The abnormal data storage area is used to store data processed by the data processing module that cannot be directly transmitted through the 5G network temporarily.

6. The 5G communication-based acoustic and electrical monitoring device for coal mine rock burst disasters according to claim 4, characterized in that: Also includes: The spare I / O module is connected to the data processing module and is used to connect to the expansion device as needed.

7. The device for acoustic and electrical monitoring of coal mine rock burst disasters based on 5G communication according to claim 4, characterized in that: The battery pack power supply module is provided with a storage battery and a charging interface module.

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