CN112533167A - Coal rock dynamic disaster wireless monitoring system and method based on 5G communication - Google Patents
Coal rock dynamic disaster wireless monitoring system and method based on 5G communication Download PDFInfo
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
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Abstract
The invention discloses a coal rock dynamic disaster wireless monitoring system and method based on 5G communication, the system comprises a data acquisition unit, a data storage and processing unit and a comprehensive early warning unit, the invention is based on the advantage of a completely new wireless digital communication system which supports high-precision positioning and wireless access capability in a closed special environment by means of the Internet of things and the original communication technology of the 5G communication technology, and takes a coal body physical signal of a working face as a basis to carry out wireless butt joint on a coal mine underground gas concentration sensor, a coal body stress meter, a top plate pressure monitoring and monitoring system, an acoustic emission monitoring system, an electromagnetic radiation monitoring system, a microseismic system and a sensor thereof with the 5G communication technology, develop underground wireless monitoring and early warning related equipment, establish a coal rock gas dynamic disaster wireless and multi-parameter identification method and an identification index, and form a coal mine gas dynamic disaster wireless multi-parameter remote monitoring and early warning system, a wireless multi-parameter remote monitoring comprehensive early warning platform for coal mine coal rock gas dynamic disaster development.
Description
Technical Field
The invention relates to the field of coal rock dynamic disaster monitoring, in particular to a wireless coal rock dynamic disaster monitoring system and method based on 5G communication.
Background
In recent years, coal and gas outburst and explosion accidents of coal mines in China frequently occur, and become the biggest hidden danger of coal mine safety production. And as the mining depth increases, the gas emission quantity increases, and the gas accident rate also increases. According to statistics, in coal mine accidents, industrial accidents caused by gas account for about 30% -40%, gas disasters mainly include gas explosion and coal and gas outburst accidents, particularly accidents such as coal and gas outburst and rock burst are extremely high in sudden and destructive performance, extremely serious influences are brought to safety production of coal mines, and safety production of the coal mines is severely limited.
At present, the early warning method for coal rock gas dynamic disasters mainly comprises a contact type early warning method and a non-contact type early warning method, the contact type early warning method is simple, a certain engineering quantity and a longer prediction time are required, and certain influence is exerted on coal mine excavation work. The non-contact early warning method mainly comprises sound emission, an electromagnetic radiation method, a neural network prediction method, a grey theory method, a natural calculation method (genetic algorithm and ant colony algorithm), a fuzzy theory method, a clustering method, a pattern recognition method, an extension method and other methods, and has the characteristics of time and labor saving, small engineering quantity and the like, and the mining work is not influenced. However, the method mostly adopts a wired transmission mode, has certain influence on safety production, cannot predict coal rock gas dynamic disasters of the mining working face in real time, and has limited effect on field production.
On the basis of further disclosing the law of coal rock gas dynamic disasters, a scientific method for advanced prevention and control is generated by applying the law and the accident principle, and particularly, a wireless, multi-parameter, large-data, regional and local combined three-dimensional full-coverage coal rock gas dynamic disaster remote monitoring and grading comprehensive early warning platform is designed by combining the specific characteristics of coal mines in China.
Disclosure of Invention
Based on the advantage of high transmission rate of the 5G communication technology, the invention determines the coal rock gas dynamic disaster judgment and identification index based on the physical signal of the working face coal under the condition of mining influence, establishes the coal rock gas dynamic disaster judgment and identification method and the early warning technology, forms a monitoring system of the coal rock gas dynamic disaster of the coal mine, develops and develops underground wireless early warning related software and equipment, and forms a wireless multi-parameter remote monitoring and early warning technical platform of the coal rock gas dynamic disaster.
In order to achieve the purpose, the invention provides the following scheme:
a coal petrography dynamic disaster wireless monitoring system based on 5G communication includes:
a data acquisition device: the device is used for collecting the stress value of the coal body, the pressure value of a gas concentration top plate, the acoustic emission energy and amplitude, the electromagnetic radiation intensity and pulse value, the energy of a micro-seismic region, the seismic level and the event number in the coal mine, and uploading the collected data to a data storage and processing unit through a 5G communication technology;
the data storage and processing unit: the early warning system is used for sorting, coupling, analyzing and comparing the acquired values with the parameters and the corresponding values to obtain early warning results, storing the early warning results in the server, and uploading the early warning results to the comprehensive early warning unit;
the comprehensive early warning unit: and the early warning device is used for sending the early warning result to a mobile terminal, a computer terminal and a monitoring large screen through an optical fiber network.
Preferably, the data acquisition device comprises a plurality of wireless sensors, a monitoring device (2) and a wireless transceiver; the wireless transceiver comprises a power supply, a mining smart phone mainboard and a wireless transceiver main body (1); the wireless transceiver main body (1) comprises a 5G communication technology butt joint chip (3), a signal receiving device lead (11), a signal receiver (4) and a signal transmitter (5); the mining intelligent mobile phone is characterized in that a signal receiving device wire (11) is connected with a plurality of wireless sensors and a monitoring device (2), and the mining intelligent mobile phone main board is in butt joint with a signal receiver (4) and a signal transmitter (5) through wireless signals and a 5G communication technology butt joint chip (3).
Preferably, the plurality of wireless sensors includes:
the coal body stress wireless sensor is used for reflecting a coal body stress change signal of a working face;
the gas concentration wireless monitoring sensor is used for reflecting a gas emission concentration change signal of a working surface;
the top plate pressure wireless monitoring system is used for reflecting the pressure change of the top plate;
the acoustic emission wireless monitoring sensor is used for reflecting the change of the coal rock mass cracking acoustic signal of the working face;
the electromagnetic radiation wireless monitoring device is used for reflecting the electric radiation change of the coal rock mass fracture of the working face;
the microseism wireless monitoring sensor is used for reflecting the change of microseism events of coal rock mass fracture of a working face.
Preferably, the data storage and processing unit comprises: the data analysis module is used for analyzing the data; the data storage module transmits the acquired data parameters uploaded by the 5G communication technology to a database server of the data analysis module; the data analysis module calls various coal rock gas dynamic disaster data in the data storage module server to perform data analysis and drawing, contrasts and analyzes changes of various data parameters within the same period of time, judges whether early warning conditions are met or not, and uploads analysis results to the comprehensive early warning unit.
Preferably, the comprehensive early warning unit includes: the system comprises an automatic early warning module, a display module and a data query module; the comprehensive early warning unit establishes a connection with other departments through a 5G communication system and carries out data interaction, when early warning information is obtained, the automatic early warning module is automatically started, the early warning information is sent to the display module, and all-round display is carried out through an information network; the data query module is used for querying the positions and monitoring values of all the sensors, the conditions in the roadway and the positions of personnel; the mobile terminal, the computer terminal and the monitoring large screen form the display module.
Preferably, the early warning method of the comprehensive early warning unit includes: the method comprises the following steps of performing out-of-limit early warning and trend early warning, determining whether data are out of limit or not according to data parameters acquired by each sensor and each system and preset dynamic disaster judgment criteria, if so, uploading early warning information and sending out-of-limit early warning; if not, judging whether the variation trend of the acquired data parameters is abnormal or not, and sending a trend pre-alarm.
A wireless monitoring method for coal rock dynamic disasters based on 5G communication comprises the following steps:
s1, acquiring stress values, gas concentrations, roof pressure values, acoustic emission energy and frequency, electromagnetic radiation intensity and pulse values, micro-seismic region energy, seismic levels and event data of underground coal mines, and uploading the data to a database server through a 5G communication technology;
s2, analyzing, cross-comparing the parameters in the step S1, and judging whether early warning information needs to be uploaded or not according to the coal rock gas dynamic disaster judgment and identification criteria and the early warning critical index;
and S3, after the comprehensive early warning unit receives the early warning information, the early warning information is displayed on a mobile phone end, a computer end and a monitoring large screen, and the position of an early warning area and the real-time situation of the site are sent.
The invention has the beneficial effects that:
based on the advantage of a 5G communication technology, the invention provides a novel wireless digital communication system which supports high-precision positioning and wireless access capability in a closed special environment by means of the Internet of things and an original communication technology, and takes a working face coal physical signal as a basis, and wirelessly interfaces a coal mine underground gas concentration sensor, a coal body stress meter, a roof pressure monitoring system, an acoustic emission monitoring system, an electromagnetic radiation monitoring system, a microseismic system and a sensor thereof with the 5G communication technology, develops underground wireless monitoring and early warning related equipment, establishes a coal rock gas dynamic disaster wireless and multi-parameter identification method and an identification index, forms a coal mine coal rock gas dynamic disaster wireless multi-parameter remote monitoring and early warning system, and develops a coal mine coal rock gas dynamic disaster wireless multi-parameter remote monitoring and comprehensive early warning platform.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a structural diagram of a data acquisition device of the present invention, wherein (1) is a wireless transceiver body, (2) is a monitoring device, (3) is a chip interfacing with 5G communication technology, (4) is a signal receiver, (5) is a signal transmitter, and (11) is a signal receiving device lead;
FIG. 2 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
A wireless monitoring system and method for coal and rock dynamic disasters based on 5G communication mainly comprise a data acquisition unit, a data storage and processing unit and a comprehensive early warning unit.
The data acquisition device (as shown in fig. 1) comprises: the system comprises a plurality of wireless sensors, a monitoring device (2) and a wireless transceiver; the wireless transceiver comprises a power supply, a mining smart phone mainboard and a wireless transceiver main body (1); the wireless transceiver body (1) comprises a 5G communication technology docking chip (3), a signal receiving device lead (11), a signal receiver (4) and a signal transmitter (5); the signal receiving device is characterized in that a wire (11) of the signal receiving device is connected with the wireless sensors and the monitoring device (2), and the mobile phone mainboard is in butt joint with the signal receiver (4) and the signal transmitter (5) through wireless signals and a 5G communication technology butt joint chip.
The wireless sensor comprises a coal body stress wireless sensor based on a working face coal body stress change signal, a gas concentration wireless monitoring sensor based on a working face gas emission concentration change signal, a top plate pressure wireless monitoring system based on the reflection of the pressure change of a top plate of a working face, an acoustic emission wireless monitoring sensor based on the reflection of the signal change of the cracking sound of the coal rock body of the working face, an electromagnetic radiation wireless monitoring device based on the reflection of the electromagnetic radiation change of the cracking of the coal rock body of the working face, and a microseismic wireless monitoring sensor based on the reflection of the change of the microseismic event of the cracking of the coal rock body of the working face.
The wireless sensor has the advantages of compact node structure and small volume, and each channel of the node is internally provided with an independent high-precision 120-omega bridge resistor and an amplification conditioning circuit, so that 1/4 bridges, half bridges and full bridge measurement modes can be conveniently and automatically switched by software, and the wireless sensor is compatible with various bridge sensors, such as strain, load, torque, displacement, acceleration, pressure, temperature and the like. The node supports 2-line and 3-line input modes simultaneously, the bridge circuit is automatically trimmed, and the bridge circuit can also store a 2M data memory built in the node. The effective outdoor communication distance can reach 300 m. The measurement can be carried out continuously for over ten hours. All modules in the sensor adopt an ultra-low power consumption design, so that the maintenance period of the sensor is greatly prolonged.
The stress wireless sensor adopts a GPD450M sensor, is mainly used for monitoring stress of a roof of a coal mine roadway, adopts a high-precision strain measurement technology, has the functions of stress measurement, data communication and the like, has stable performance and strong environment adaptability, and can be used in dangerous places containing gas such as gas and the like underground.
The gas concentration wireless sensor adopts a sensor with the model number of KGJ16B, has various standard signal standard outputs, and can be matched with a coal mine safety monitoring system for use after joint inspection.
The acoustic emission wireless sensor adopts a PXR series sensor, the sensitivity is as high as-63 dB, the narrow-band response is realized, the directivity is strong, and the stability, the reliability and the consistency are far superior to those of similar products.
The electromagnetic radiation wireless monitoring device and the microseismic wireless monitoring sensor are wireless devices, and data are transmitted to the underground base station and uploaded to the data storage and processing unit through optical fibers.
The microseismic wireless monitoring sensor adopts a CMOS series sensor, can stably measure any target object, does not need to change setting, has more than 20 sensing heads, can respond to all measurement conditions, can realize high-speed sampling as fast as 392kHz, and realizes the stability of the microseismic wireless monitoring sensor by means of high-speed sampling.
The multiple parameters comprise the stress value of the coal body under the coal mine, the top pressure value of the gas concentration, the sound emission energy and frequency, the electromagnetic radiation intensity and pulse value, the energy, the seismic level and the event number of the micro-seismic region, and the coal rock gas dynamic disaster data are coupled and analyzed to obtain the change rule of the coal rock gas dynamic disaster monitoring and early warning index; quantitatively analyzing the coal rock gas dynamic disaster risk and the correlation of indexes, determining the critical index value of early warning, and obtaining the coal rock gas dynamic disaster judgment and identification criterion; and giving out a multi-parameter monitoring and early warning method and a warning mode. Determining a butt joint technology of underground wireless transmission and a ground wired monitoring and early warning platform; establishing a wireless remote monitoring comprehensive early warning platform for coal rock gas dynamic disasters of a mining working face; and developing a big data and multi-parameter monitoring and early warning software system.
The data storage and processing unit comprises a data storage module and a data analysis module; the data storage module transmits the parameters of the coal rock gas dynamic disaster uploaded by the 5G network to a database server of the data analysis module, stores the parameter values and the analysis result, and facilitates calling coupling comparison at any time; the data analysis module calls various coal rock gas dynamic disaster data in the data storage module server to perform data analysis and drawing, changes of various parameters in a period of time and in a period of time are contrasted and analyzed, whether early warning conditions are met or not is judged, and an analysis result is uploaded to the comprehensive early warning unit.
The comprehensive early warning unit comprises an automatic early warning module, a display module and a data query module; the comprehensive early warning unit establishes contact with other departments through a 5G communication system and carries out data interaction, once early warning information is obtained, the early warning module is automatically started, the early warning information is sent to a mobile terminal, a computer terminal and a monitoring large screen, and all-around display is carried out through an information network; the display module comprises a mobile terminal, a computer terminal and a monitoring large screen, and is used for displaying the parameter values and the conditions in the roadway in real time; the data query module can query the position and monitored value of each sensor, the condition in the roadway and the position of personnel.
The invention relates to a broadband wireless access solution method based on a 5G communication technology, which constructs a novel wireless digital communication system which is suitable for construction and convenient to arrange and supports high-precision positioning and wireless access capabilities in closed special environments such as mines and the like by means of an original communication technology, meets the requirements of communication, positioning and data transmission, has complete wireless communication and precise positioning capabilities, high positioning precision and high speed, does not need large power supply and supporting facilities, and has the characteristics of quick and simple deployment, high positioning precision, strong transmission capability, sensor monitoring, remote management and intelligent maintenance, high reliability and the like.
The structure of the system is shown in fig. 2.
The invention also provides a coal rock power monitoring method based on 5G communication, which comprises the following steps:
s1, acquiring data such as the stress value, the gas concentration, the top plate pressure value, the acoustic emission energy and frequency, the electromagnetic radiation intensity and pulse value, the energy, the seismic level and the event number of the micro-seismic region of the coal mine underground coal body, and uploading the data to a database server through a 5G communication technology;
s2, analyzing the parameters in a cross comparison mode within a period of time, and judging whether to upload early warning information or not according to coal rock gas dynamic disaster judgment criteria and early warning critical indexes;
and S3, after the early warning information is received, the early warning information is displayed at the mobile phone end, the computer end and the monitoring large screen, and the area position and the field real-time condition are sent.
Based on the advantage of high transmission rate of the 5G communication technology, the invention determines the coal rock gas dynamic disaster judgment and identification index based on the physical signal of the working face coal under the condition of mining influence, establishes the coal rock gas dynamic disaster judgment and identification method and the early warning technology, forms a monitoring system of the coal rock gas dynamic disaster of the coal mine, develops and develops underground wireless early warning related software and equipment, and forms a wireless multi-parameter remote monitoring and early warning technical platform of the coal rock gas dynamic disaster.
The above-mentioned embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a coal petrography dynamic disaster wireless monitoring system based on 5G communication which characterized in that includes:
a data acquisition device: the device is used for collecting the stress value of the coal body, the pressure value of a gas concentration top plate, the acoustic emission energy and amplitude, the electromagnetic radiation intensity and pulse value, the energy of a micro-seismic region, the seismic level and the event number in the coal mine, and uploading the collected data to a data storage and processing unit through a 5G communication technology;
the data storage and processing unit: the early warning system is used for sorting, coupling, analyzing and comparing the acquired values with the parameters and the corresponding values to obtain early warning results, storing the early warning results in the server, and uploading the early warning results to the comprehensive early warning unit;
the comprehensive early warning unit: and the early warning device is used for sending the early warning result to a mobile terminal, a computer terminal and a monitoring large screen through an optical fiber network.
2. The wireless coal and rock dynamic disaster monitoring system based on 5G communication is characterized in that the data acquisition device comprises a plurality of wireless sensors, a monitoring device (2) and a wireless transceiver; the wireless transceiver comprises a power supply, a mining smart phone mainboard and a wireless transceiver main body (1); the wireless transceiver body (1) comprises a 5G communication technology docking chip (3), a signal receiving device lead (11), a signal receiver (4) and a signal transmitter (5); the mining intelligent mobile phone is characterized in that a signal receiving device wire (11) is connected with a plurality of wireless sensors and a monitoring device (2), and the mining intelligent mobile phone main board is in butt joint with a signal receiver (4) and a signal transmitter (5) through wireless signals and a 5G communication technology butt joint chip (3).
3. The wireless coal rock dynamic disaster monitoring system based on 5G communication is characterized in that the plurality of wireless sensors comprise:
the coal body stress wireless sensor is used for reflecting a coal body stress change signal of a working face;
the gas concentration wireless monitoring sensor is used for reflecting a gas emission concentration change signal of a working surface;
the top plate pressure wireless monitoring system is used for reflecting the pressure change of the top plate;
the acoustic emission wireless monitoring sensor is used for reflecting the change of the coal rock mass cracking acoustic signal of the working face;
the electromagnetic radiation wireless monitoring device is used for reflecting the electric radiation change of the coal rock mass fracture of the working face;
the microseism wireless monitoring sensor is used for reflecting the change of microseism events of coal rock mass fracture of a working face.
4. The wireless coal rock dynamic disaster monitoring system based on 5G communication is characterized in that the data storage and processing unit comprises: the data analysis module is used for analyzing the data; the data storage module transmits the acquired data parameters uploaded by the 5G communication technology to a database server of the data analysis module; the data analysis module calls various coal rock gas dynamic disaster data in the data storage module server to perform data analysis and drawing, compares and analyzes changes of various data parameters within the same period of time, judges whether early warning conditions are met or not, and uploads analysis results to the comprehensive early warning unit.
5. The wireless coal rock dynamic disaster monitoring system based on 5G communication is characterized in that the comprehensive early warning unit comprises: the system comprises an automatic early warning module, a display module and a data query module; the comprehensive early warning unit establishes contact with other departments through a 5G communication system and carries out data interaction, when early warning information is obtained, the automatic early warning module is automatically started, the early warning information is sent to the display module, and all-round display is carried out through an information network; the data query module is used for querying the positions and monitoring values of all the sensors, the conditions in the roadway and the positions of personnel; the mobile terminal, the computer terminal and the monitoring large screen form the display module.
6. The wireless coal and rock dynamic disaster monitoring system based on 5G communication as claimed in claim 1, wherein the early warning method of the comprehensive early warning unit comprises: the method comprises the steps of performing out-of-limit early warning and trend early warning, determining whether data are out of limit or not according to data parameters acquired by each sensor and each system and preset dynamic disaster judgment criteria, and if so, uploading early warning information and sending out-of-limit early warning; if not, judging whether the variation trend of the acquired data parameters is abnormal or not, and sending a trend early warning.
7. The wireless coal rock dynamic disaster monitoring method based on 5G communication is characterized by comprising the following steps of:
s1, acquiring stress values, gas concentrations, roof pressure values, acoustic emission energy and frequency, electromagnetic radiation intensity and pulse values, micro-seismic region energy, seismic levels and event data of underground coal mines, and uploading the data to a database server through a 5G communication technology;
s2, analyzing and cross-comparing the parameters in the step S1, and judging whether early warning information needs to be uploaded or not according to the coal rock gas dynamic disaster judgment and identification criteria and the early warning critical indexes;
and S3, receiving the early warning information through the comprehensive early warning unit, displaying the early warning information on a mobile phone end, a computer end and a monitoring large screen, and sending the position of an early warning area and the real-time situation of a site.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113129541A (en) * | 2021-04-13 | 2021-07-16 | 苏州艾斯莫科信息科技有限公司 | Environment and security management system |
| CN113137279A (en) * | 2021-04-02 | 2021-07-20 | 山东科技大学 | Coal mine thermal power disaster monitoring and early warning system and method based on 5G private network |
| CN113153431A (en) * | 2021-04-02 | 2021-07-23 | 山东科技大学 | Coal and rock dynamic disaster monitoring and early warning visualization system and method based on 5G communication |
| CN113374525A (en) * | 2021-05-31 | 2021-09-10 | 贵州省矿山安全科学研究院有限公司 | Coal and gas outburst danger area identification comprehensive early warning method based on multi-parameter data fusion |
| CN116241330A (en) * | 2023-03-28 | 2023-06-09 | 黑龙江泰平隆矿业科技有限公司 | Early warning method and device for gas danger in coal mine and electronic equipment |
| CN117098174A (en) * | 2023-10-19 | 2023-11-21 | 华夏天信智能物联(大连)有限公司 | Mining wireless communication monitoring method, system and readable storage medium |
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| CN113374525A (en) * | 2021-05-31 | 2021-09-10 | 贵州省矿山安全科学研究院有限公司 | Coal and gas outburst danger area identification comprehensive early warning method based on multi-parameter data fusion |
| CN116241330A (en) * | 2023-03-28 | 2023-06-09 | 黑龙江泰平隆矿业科技有限公司 | Early warning method and device for gas danger in coal mine and electronic equipment |
| CN116241330B (en) * | 2023-03-28 | 2024-02-23 | 黑龙江泰平隆矿业科技有限公司 | Early warning method and device for gas danger in coal mine and electronic equipment |
| CN117098174A (en) * | 2023-10-19 | 2023-11-21 | 华夏天信智能物联(大连)有限公司 | Mining wireless communication monitoring method, system and readable storage medium |
| CN117098174B (en) * | 2023-10-19 | 2024-01-02 | 华夏天信智能物联(大连)有限公司 | Mining wireless communication monitoring method, system and readable storage medium |
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