CN114562334B - Real-time visual monitoring and early warning system and method for mine roadway ventilation state - Google Patents
Real-time visual monitoring and early warning system and method for mine roadway ventilation state Download PDFInfo
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- CN114562334B CN114562334B CN202210335471.2A CN202210335471A CN114562334B CN 114562334 B CN114562334 B CN 114562334B CN 202210335471 A CN202210335471 A CN 202210335471A CN 114562334 B CN114562334 B CN 114562334B
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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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a real-time visual monitoring and early warning system and method for mine roadway ventilation state, wherein the system comprises the following steps: the system comprises an information real-time automatic sensing module, an information transmission module, a ground computer system and an alarm; the information real-time automatic sensing module is used for acquiring roadway ventilation parameters in real time; the information transmission module is used for transmitting the roadway ventilation parameters acquired by the information real-time automatic sensing module to the ground computer system; the ground computer system is used for carrying out abnormality diagnosis on the ventilation system based on the roadway ventilation parameters, and controlling the alarm to carry out alarm prompt when the roadway ventilation parameters exceed a preset range; and calculating the branch air quantity, and automatically adjusting the ventilation facilities to meet the branch air quantity when the branch air quantity is changed. The method has the advantages of monitoring data transmission real-time performance, facility regulation and control automation, disaster identification accuracy, accurate prediction and the like.
Description
Technical Field
The invention relates to the technical field of ventilation safety, in particular to a real-time visual monitoring and early warning system and method for the ventilation state of a mine tunnel.
Background
At present, the mine ventilation system is basically in an artificial or semi-artificial stage, has a large gap from an open intelligent system, and mainly comprises the following steps: the method and means for detecting and early warning the average wind speed of the roadway are relatively backward, and the method and means are mainly used for detecting through various traditional measuring instruments and methods, the testing process is easily influenced by external factors and human factors, and the problems that the information quantity is small, the wind speed information cannot be obtained in real time, the analysis and evaluation capability is poor, the labor intensity of wind measuring technicians is high, the actual production needs cannot be completely met and the like exist. Moreover, the intelligent ventilation monitoring and early warning system and method for the mine are relatively less in research, the air volume measurement and calculation is mainly performed manually, then the adjustment quantity is roughly calculated according to experience, ventilation facilities are manually adjusted, the defects that the adjustment and calculation period is long, the accuracy is low, ventilation data cannot be transmitted in real time and the like exist, and accidents such as gas are easily caused by improper air volume adjustment.
Therefore, the intelligent early warning system and method for researching the mine roadway ventilation state real-time monitoring can realize accurate sensing of air quantity, automatic adjustment of ventilation facilities and the like, can improve monitoring effectiveness and reduce coal mine safety accidents. The method has great significance for realizing intelligent development progress of the ventilation of the coal mine, controllable management of the ventilation technology of the coal mine, scientific and efficient management of a ventilation system of the coal mine, improvement of the current situation of the ventilation safety of the coal mine and the like.
Disclosure of Invention
The invention provides a real-time visual monitoring and early warning system and method for a mine roadway ventilation state, which aim to solve the technical problem that the existing method and means for detecting and early warning the average wind speed of a roadway are relatively lagged.
In order to solve the technical problems, the invention provides the following technical scheme:
in one aspect, the invention provides a real-time visual monitoring and early warning system for mine roadway ventilation state, comprising: the system comprises an information real-time automatic sensing module, an information transmission module, a ground computer system and an alarm;
the information real-time automatic sensing module is used for acquiring roadway ventilation parameters in real time;
the information transmission module is used for transmitting the roadway ventilation parameters acquired by the information real-time automatic sensing module to the ground computer system in real time through a network;
the ground computer system is used for carrying out ventilation system abnormality diagnosis based on the roadway ventilation parameters, and controlling the alarm to carry out alarm prompt when the roadway ventilation parameters exceed a preset range; and calculating the branch air quantity, and automatically adjusting the ventilation facilities to meet the branch air quantity when the branch air quantity is changed.
Further, the information real-time automatic sensing module comprises a wind speed sensor for acquiring roadway wind speed information.
Further, the wind speed sensor is arranged at the mean wind speed contour line of the tunnel section.
Further, the ground computer system comprises a three-dimensional visual monitoring module, an automatic ventilation facility adjusting module and an intelligent service module; wherein, the liquid crystal display device comprises a liquid crystal display device,
the three-dimensional visual monitoring module is used for realizing visualization of roadway ventilation parameters, ventilation facilities and roadway models, realizing management and control of three-dimensional scenes, dynamic inquiry and roadway virtual roaming operation, carrying out real-time ventilation network calculation, carrying out ventilation system abnormality diagnosis, carrying out figure-text-sound alarm prompt when the wind speed and the wind quantity are lower than the lower limit or higher than the upper limit, and transmitting ventilation data to the ventilation facility automatic regulation module and the intelligent service module;
the automatic ventilation facility adjusting module is used for calculating the branch air quantity according to the roadway ventilation parameters and the information transmitted by the three-dimensional visual monitoring module, and automatically selecting branches with sensitivity larger than a preset threshold value and having influence on the stability of the ventilation system within a preset degree to adjust the ventilation facilities when the branch air quantity is changed;
the intelligent service module is used for carrying out daily ventilation report management, wind speed and wind quantity report writing, automatic drawing and displaying of a ventilation network diagram and a three-dimensional diagram based on the ventilation parameters and the information transmitted by the three-dimensional visual monitoring module.
Further, the three-dimensional visual monitoring module is specifically configured to:
the real-time automatic sensing module monitors roadway ventilation parameters and mine existing data through the information, and the 3D virtual simulation technology entity modeling is used for realizing the visual functions of the ventilation parameters, ventilation facilities and roadway models; and (3) carrying out ventilation network calculation by using a loop iteration method through real-time monitoring of the tunnel air quantity, carrying out ventilation system abnormality diagnosis by using the difference between the calculated wind speed data value and the monitored data value, and carrying out graph-text-sound alarm when the wind speed data value is lower than 80% of the lowest wind speed of the tunnel or higher than 120% of the maximum wind speed of the tunnel.
Further, the calculation formula of the sensitivity is:
wherein DeltaR j The wind resistance variation is represented; ΔQ i Indicating the wind speed variation; when DeltaR j At 0, there is d ij ＝limΔR j 0, then i divided air volume Q i Is equivalent to the j-branch wind resistance R j Is a high sensitivity.
On the other hand, the invention also provides a method for realizing the real-time visual monitoring and early warning of the mine tunnel ventilation state by using the real-time visual monitoring and early warning system of the mine tunnel ventilation state, which comprises the following steps:
acquiring roadway ventilation parameters in real time through the information real-time automatic sensing module;
the tunnel ventilation parameters acquired by the information real-time automatic sensing module are transmitted to the ground computer system in real time through the network by the information transmission module;
performing ventilation system abnormality diagnosis based on the roadway ventilation parameters through the ground computer system, and controlling the alarm to perform alarm prompt when the roadway ventilation parameters exceed a preset range; and calculating the branch air quantity, and automatically adjusting the ventilation facilities to meet the branch air quantity when the branch air quantity is changed.
The technical scheme provided by the invention has the beneficial effects that at least:
the invention constructs a real-time ventilation state monitoring and early warning system by means of roadway air volume real-time monitoring and computer algorithm program, and the system can solve the problems of time and labor waste and inconvenient real-time transmission of mine ventilation parameter acquisition, and realize the full-day real-time monitoring of mine roadway ventilation state. When the intelligent air quantity warning system works, warning prompt can be carried out on the abnormal air quantity phenomenon of the roadway, ventilation facilities are automatically adjusted, and a working report is intelligently output. The early warning system provided by the invention is convenient and efficient, can realize real-time monitoring, and improves the intelligent level of mine ventilation; the automatic early warning, automatic ventilation facility adjustment and intelligent work report output of the abnormal wind speed of the mine tunnel can be realized, the monitoring efficiency can be greatly improved, the accident occurrence is reduced, and the promotion effect on the mine safety production is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a real-time visual monitoring and early warning system for mine roadway ventilation status, which is provided by the embodiment of the invention;
fig. 2 is a schematic diagram of an execution flow of a method for real-time visual monitoring and early warning of a mine tunnel ventilation state according to an embodiment of the present invention.
Reference numerals illustrate:
1. a wind speed sensor; 2. a downhole transmission cable; 3. a sub-station for underground monitoring; 4. a downhole switch; 5. a ground server; 6. a ground computer system; 7. an alarm; 8. a ventilator; 9. ventilation parameter sensor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
First embodiment
The embodiment provides a real-time visual monitoring and early warning system for mine tunnel ventilation state, as shown in fig. 1, the real-time visual monitoring and early warning system for mine tunnel ventilation state comprises: the system comprises an information real-time automatic sensing module, an information transmission module, a ground computer system 6 and an alarm 7; wherein, the liquid crystal display device comprises a liquid crystal display device,
the information real-time automatic sensing module is used for acquiring roadway ventilation parameters in real time;
the information transmission module is used for transmitting the roadway ventilation parameters acquired by the information real-time automatic sensing module to the ground computer system 6 in real time through a network;
the ground computer system 6 is used for carrying out ventilation system abnormality diagnosis based on the roadway ventilation parameters, and when the roadway ventilation parameters exceed a preset range, the alarm 7 is controlled to carry out alarm prompt; and calculating the branch air quantity, and automatically adjusting the ventilation facilities to meet the branch air quantity when the branch air quantity is changed.
Specifically, the information real-time automatic sensing module comprises a wind speed sensor 1 for acquiring the wind speed information of the roadway and a ventilation parameter sensor 9 for acquiring other ventilation parameters (ventilation parameter signals such as air quantity signals, wind resistance signals, stability and the like) of the roadway. The wind speed sensor 1 is arranged at the equal-wind-speed contour line of the section of the roadway. The method for determining the tunnel average wind speed contour line comprises the following steps: and simulating a roadway wind speed distribution rule by using Fluent software, and determining the position of the average roadway wind speed.
The information transmission module comprises an underground monitoring substation 3, an underground exchanger 4 and a ground server 5; the wind speed sensor 1 is in communication connection with the underground monitoring substation 3 through an underground transmission cable 2, the underground monitoring substation 3 is in communication connection with the underground exchanger 4, and the underground exchanger 4 is in communication connection with the ground server 5; the surface server 5 is communicatively connected to the surface computer system 6.
The ventilation means comprises a ventilator 8, said ventilator 8 being in communication with the downhole monitoring substation 3.
The ground computer system 6 comprises a three-dimensional visual monitoring module, an automatic ventilation facility adjusting module and an intelligent service module; wherein, the liquid crystal display device comprises a liquid crystal display device,
the three-dimensional visual monitoring module is used for automatically sensing roadway ventilation parameters and mine existing data monitored by the information real-time automatic sensing module, and realizing the visual functions of the ventilation parameters, ventilation facilities and roadway models by using 3D virtual simulation technology entity modeling; and (3) carrying out ventilation network calculation by using a loop iteration method through real-time monitoring of the tunnel air quantity, carrying out ventilation system abnormality diagnosis by using the difference between the calculated wind speed data value and the monitored data value, and carrying out graph-text-sound alarm when the wind speed data value is lower than 80% of the lowest wind speed of the tunnel or higher than 120% of the maximum wind speed of the tunnel.
The method for the graph-text-sound alarm specifically comprises the following steps: and establishing a mathematical model according to a mine ventilation theory, determining a numerical calculation method, developing a program, inputting actual mine data, and performing numerical calculation. Stopping calculation when the set precision is reached, and ending the wind net calculation. When calculating the wind speed Q Solution ＜0.8Q Monitoring device Or Q Solution ＞1.2Q Monitoring device And alarming is carried out.
The automatic ventilation facility adjusting module is used for calculating the branch air quantity according to the roadway ventilation parameters and the information transmitted by the three-dimensional visual monitoring module, and automatically selecting branches with sensitivity larger than a preset threshold value and having influence on the stability of the ventilation system within a preset degree to adjust the ventilation facilities when the branch air quantity is changed;
the sensitivity is calculated according to the following formula:
wherein DeltaR j The wind resistance variation is represented; ΔQ i Indicating the wind speed variation; when DeltaR j At 0, there is d ij ＝limΔR j 0, then i divided air volume Q i Is equivalent to the j-branch wind resistance R j Is a high sensitivity.
To sum up, the embodiment is distributed at the position of the average wind speed at the top end of the mine tunnelReal-time basic sensing data are measured on the basis of roadway ventilation sensors, ventilation parameter sensors and the like, underground wind speed and other ventilation parameter changes are tested in real time, and the basic sensing data are uploaded to a ground server through underground monitoring substations and underground switches. The computer equipped with three-dimensional visual monitoring module, automatic ventilation facility regulating module and intelligent service module makes resolving analysis on the received data, when resolving wind speed Q Solution ＜0.8Q Monitoring device Or Q Solution ＞1.2Q Monitoring device And the graphic-text-sound alarm is carried out, the automatic adjustment of ventilation facilities is carried out according to the resolving condition, and daily monitoring and resolving analysis data are subjected to three-dimensional image display functions such as report forms, so that the real-time monitoring and early warning of the ventilation state of the mine tunnel can be realized, the intelligent ventilation monitoring and early warning management and control are realized, and the ventilation safety of the mine is improved.
Second embodiment
The embodiment provides a mine tunnel ventilation state real-time visual monitoring and early warning method realized by the mine tunnel ventilation state real-time visual monitoring and early warning system of the first embodiment, as shown in fig. 2, the mine tunnel ventilation state real-time visual monitoring and early warning method comprises the following steps:
s1, acquiring roadway ventilation parameters in real time through the information real-time automatic sensing module;
s2, transmitting the roadway ventilation parameters acquired by the information real-time automatic sensing module to the ground computer system through a network in real time through the information transmission module;
s3, carrying out abnormality diagnosis on the ventilation system based on the roadway ventilation parameters through the ground computer system, and controlling the alarm to carry out alarm prompt when the roadway ventilation parameters exceed a preset range; and calculating the branch air quantity, and automatically adjusting the ventilation facilities to meet the branch air quantity when the branch air quantity is changed.
Specifically, the embodiment acquires real-time wind speeds through the information real-time automatic sensing module, monitors all wind speeds in real time every one minute by the ventilation sensor, acquires the average value of all wind speeds, and transmits tunnel wind speeds to the monitoring substation through the information transmission module; the monitoring substation transmits the roadway real-time wind speed and other underground ventilation parameter data to the exchanger, and signals are transmitted to the ground server through the exchanger; the ground server transmits the monitoring ventilation data to a three-dimensional visual monitoring module, a ventilation facility automatic adjusting module and an intelligent service module.
The three-dimensional visual monitoring module receives ventilation data to display a roadway ventilation data network topological graph, carries out real-time ventilation network calculation, and calculates the wind speed Q when the ventilation data are calculated Solution ＜0.8Q Monitoring device Or Q Solution ＞1.2Q Monitoring device And then carrying out graph-text-sound alarm and outputting the current calculated wind speed and the actual wind speed.
The ventilation facility automatic regulating module receives the data transmitted by the server and the three-dimensional visual monitoring module to calculate the required air quantity, and when the air speed needs to be regulated, the air speed is regulated according to the formula
Branches with higher sensitivity and smaller influence on the stability of the ventilation system are selected, and the roadway ventilation facilities are adjusted through the controller.
The intelligent service module receives the data transmitted by the server and the three-dimensional visual monitoring module, and carries out daily ventilation report management, report writing of wind speed and wind quantity and the like, and daily ventilation network diagrams and stereogram automatic drawing and display.
Furthermore, it should be noted that the present invention can be provided as a method, an apparatus, or a computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product on one or more computer-usable storage media having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should also be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
It is finally pointed out that the above description of the preferred embodiments of the invention, it being understood that although preferred embodiments of the invention have been described, it will be obvious to those skilled in the art that, once the basic inventive concepts of the invention are known, several modifications and adaptations can be made without departing from the principles of the invention, and these modifications and adaptations are intended to be within the scope of the invention. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Claims (2)
1. The utility model provides a mine tunnel ventilation state real-time visual monitoring early warning system which characterized in that includes: the system comprises an information real-time automatic sensing module, an information transmission module, a ground computer system and an alarm; wherein, the liquid crystal display device comprises a liquid crystal display device,
the information real-time automatic sensing module is used for acquiring roadway ventilation parameters in real time;
the information transmission module is used for transmitting the roadway ventilation parameters acquired by the information real-time automatic sensing module to the ground computer system in real time through a network;
the ground computer system is used for carrying out ventilation system abnormality diagnosis based on the roadway ventilation parameters, and controlling the alarm to carry out alarm prompt when the roadway ventilation parameters exceed a preset range; calculating the branch air quantity, and automatically adjusting ventilation facilities when the branch air quantity changes so as to meet the branch air quantity;
the information real-time automatic sensing module comprises a wind speed sensor for acquiring roadway wind speed information and a ventilation parameter sensor for acquiring other ventilation parameters of the roadway, wherein the other ventilation parameters comprise: an air quantity signal and an air resistance signal;
the wind speed sensor is arranged at the equal wind speed contour line of the tunnel section;
the ground computer system comprises a three-dimensional visual monitoring module, an automatic ventilation facility adjusting module and an intelligent service module; wherein, the liquid crystal display device comprises a liquid crystal display device,
the three-dimensional visual monitoring module is used for realizing visualization of roadway ventilation parameters, ventilation facilities and roadway models, realizing management and control of three-dimensional scenes, dynamic inquiry and roadway virtual roaming operation, carrying out real-time ventilation network calculation, carrying out ventilation system abnormality diagnosis, carrying out figure-text-sound alarm prompt when the wind speed and the wind quantity are lower than the lower limit or higher than the upper limit, and transmitting ventilation data to the ventilation facility automatic regulation module and the intelligent service module;
the automatic ventilation facility adjusting module is used for calculating the branch air quantity according to the roadway ventilation parameters and the information transmitted by the three-dimensional visual monitoring module, and automatically selecting branches with sensitivity larger than a preset threshold value and having influence on the stability of the ventilation system within a preset degree to adjust the ventilation facilities when the branch air quantity is changed;
the intelligent service module is used for carrying out daily ventilation report management, wind speed and wind quantity report writing, automatic drawing and display of a ventilation network diagram and a three-dimensional diagram based on the ventilation parameters and the information transmitted by the three-dimensional visual monitoring module;
the three-dimensional visual monitoring module is specifically used for:
the real-time automatic sensing module monitors roadway ventilation parameters and mine existing data through the information, and the 3D virtual simulation technology entity modeling is used for realizing the visual functions of the ventilation parameters, ventilation facilities and roadway models; carrying out ventilation network calculation by using a loop iteration method through real-time monitoring of the roadway air quantity, carrying out ventilation system abnormality diagnosis by the difference between the calculated wind speed data value and the monitored data value, and carrying out graph-text-sound alarm when the wind speed data value is lower than 80% of the lowest wind speed of the roadway or higher than 120% of the maximum wind speed of the roadway;
the calculation formula of the sensitivity is as follows:
wherein delta isR j The wind resistance variation is represented; deltaQ i Indicating the wind speed variation; when deltaR j At the time of 0, there ared ij ＝limΔR j 0, theniAir quantity of branchingQ i Is equivalent tojShunt wind resistanceR j Is a high sensitivity.
2. The mine tunnel ventilation state real-time visual monitoring and early warning method realized by the mine tunnel ventilation state real-time visual monitoring and early warning system according to claim 1 is characterized by comprising the following steps:
acquiring roadway ventilation parameters in real time through the information real-time automatic sensing module;
the tunnel ventilation parameters acquired by the information real-time automatic sensing module are transmitted to the ground computer system in real time through the network by the information transmission module;
performing ventilation system abnormality diagnosis based on the roadway ventilation parameters through the ground computer system, and controlling the alarm to perform alarm prompt when the roadway ventilation parameters exceed a preset range; and calculating the branch air quantity, and automatically adjusting the ventilation facilities to meet the branch air quantity when the branch air quantity is changed.
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