Large-area mine gas disaster hidden danger prediction management system and method

Abstract

The application discloses a large-area mine gas disaster hidden danger prediction management system, comprising a data acquisition module, a data processing module and a result display module, and discloses a large-area mine gas disaster hidden danger prediction method. The application takes the basic information, geological information, gas parameters and safety monitoring data of all mines in an administrative region as the basis, adopts a fusion unit and a threshold unit to establish a mathematical model, carries out four-level alarm of coal mine gas disaster and four-level early warning of gas disaster hidden danger, realizes continuous prediction of gas disaster hidden danger early warning and gas disaster alarm, improves the advanced prediction ability of a safety supervision department before the occurrence of a large-area mine gas disaster and the rapid reaction ability after the occurrence of the gas disaster, and provides a basic platform for the safety supervision department to quickly master the gas safety risk of a large-area mine.

Description

Technical Field

[0001] This invention belongs to the field of coal mining and coal mine safety technology, and specifically provides a large-area mine gas disaster hazard forecasting management system and method. Background Technology

[0002] With the guidance of national security policies, the improvement of disaster prevention and control technologies, and the continuous investment in safety funds, the safety situation in coal mine production has improved significantly. However, coal mine disasters have not been completely eliminated and still occur from time to time, especially gas disasters. Gas disasters are influenced by many factors, are highly concealed, and are extremely harmful, making them one of the major disasters in coal mines. National coal mine safety supervision departments at all levels frequently conduct special investigations into potential gas disaster hazards. Due to the large number of coal mines in my country, the workload for these investigations is enormous. The repetitive inspections by management departments at various levels also have a certain impact on normal coal mine production. Furthermore, the level of informatization in the inspection of potential gas disaster hazards in my country is low; a large amount of hazard investigation work still requires manual review of documents and on-site inspections, resulting in low efficiency. When a gas disaster occurs in a coal mine, there are instances of concealment or delayed reporting, making it difficult for management departments to receive information and details of the gas disaster accident in a timely manner. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a large-area mine gas disaster hazard forecasting and management system and method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a large-area mine gas disaster hazard forecasting and management system, including a data acquisition module, a data processing module, and a result display module.

[0005] The data acquisition module includes a data acquisition terminal, which is located in an area where a gas disaster may occur. The data acquisition terminal acquires data according to a data acquisition frequency. The data acquisition terminal is connected to the data processing module via wired or wireless means, and the data acquisition terminal uploads the data to the data processing module through manual input and real-time upload.

[0006] The data processing module includes a data processing unit, a fusion unit, and a threshold unit. The data processing module is located in the information center. The data processing module divides the data into primary indicators and auxiliary indicators. The fusion unit and the threshold unit are used to determine the disaster risk level. The data processing unit connects the data from the fusion unit, the threshold unit, and the data acquisition module to the result display module via wired or wireless means.

[0007] The results display module includes a large display screen, which is located within the management department. The display screen displays information including basic mine conditions, the number of gas disasters, key gas parameters, gas disaster alarm information, and gas disaster hazard warning information.

[0008] Furthermore, the key indicators are parameters closely related to the properties of gas, including safety monitoring information, gas parameters, outburst indicators, and outburst warning signs.

[0009] The auxiliary indicators are parameters that have a certain impact on the occurrence of gas disasters, including structural parameters, stress parameters, coal seam parameters, and production parameters.

[0010] Furthermore, the gas disaster alarm information includes the number of alarms, the location of the alarm, and the alarm level.

[0011] Furthermore, the gas disaster hazard early warning information includes the number of warnings, the location of the warning, and the warning level.

[0012] Furthermore, the areas where gas disasters may occur include gas source areas and areas where gas cannot be generated. The gas source areas include drilling sites, tunneling roadways, and longwall faces, while the areas where gas cannot be generated include main roadways and other chambers in the mining area.

[0013] The method for predicting potential gas hazards in large-area mines, utilizing the aforementioned large-area mine gas hazard prediction and management system, specifically includes the following steps:

[0014] A. Install a large-area mine gas disaster hazard forecasting and management system in the safety supervision department within an administrative region. Install information storage and data processing equipment in the information center. Install a large display screen in the dispatch room of the safety supervision department. Install data acquisition terminals in each coal mine within the region. The data acquisition terminals are set up in various departments according to the different data management departments. Each department is responsible for uploading data within its own scope.

[0015] B. Based on the characteristics of the data, the data acquisition frequency is managed in a hierarchical manner, divided into low-frequency information, medium-frequency information, and high-frequency information. The data collected at each level carries specific location information such as mine, working face, roadway, drilling site, and chamber.

[0016] C. The collected data is transmitted to the information storage equipment of the information center through a dedicated network. The data processing unit performs calculations on the data. The risk level of gas disaster alarm information is determined using the gas disaster alarm method, and the risk level of gas disaster hazard warning information is determined using the gas disaster hazard warning method. When the alarm and warning use the same indicators, a critical value for the occurrence of gas disaster is set. If the critical value is not exceeded, it means that a gas disaster has not yet occurred, and this is the gas disaster hazard warning interval. If the critical value is exceeded, it means that a gas disaster has occurred, and this is the gas disaster alarm interval.

[0017] D. After the gas disaster alarm information and gas disaster hazard warning information level are determined, the calculation results will be displayed on the large display screen in the management department's dispatch room. The displayed content includes the basic information of the mine, the number of gas disasters that have occurred in the past, key gas parameters, gas disaster alarm information for the day, and gas disaster hazard warning information for the day. Each alarm and warning content is followed by an explanation of the judgment conditions.

[0018] Furthermore, in step B, the low-frequency information includes basic mine information, geological structure complexity, maximum burial depth, mining layout, maximum gas content, gas control equipment, etc. This type of information is relatively stable and needs to be manually entered and updated once a year or once a month.

[0019] The intermediate frequency information includes prominent precursor information, local anti-outburst indicators, and daily geological data, which need to be manually entered and updated once a day.

[0020] The high-frequency information refers to data from methane and wind speed sensors detected by safety monitoring. The data is obtained directly from the safety monitoring of each mine. The data collection frequency is determined based on the server's processing capacity and storage space, and is generally collected once every 30 seconds, 60 seconds, or 90 seconds.

[0021] Furthermore, in step C, the gas disaster alarm method is implemented through a threshold unit, specifically including the following steps:

[0022] Mine gas disaster alarms are based on real-time data uploaded by safety monitoring. They are determined by the methane concentration at the drilling site, the methane concentration at various locations in the tunneling and mining faces, the values ​​and durations of wind speed sensor monitoring data, and preset methane concentration thresholds, duration thresholds, and trigger thresholds, which in turn give the corresponding gas disaster alarm level. When consecutive alarms occur at the same location within a certain period of time, the alarm level with the highest value is selected to represent the gas risk level of that location.

[0023] Furthermore, in step C, the gas disaster hazard early warning method is implemented through a fusion unit and a threshold unit, specifically including the following steps:

[0024] For gas source areas, gas disaster hazard warnings are issued through fusion units. The main indicators are used as the primary warning basis, supplemented by auxiliary indicators. Various gas disaster factors are superimposed and fused within a small area. The maximum value of the main indicators and the maximum value of the auxiliary indicators are selected for fusion. The corresponding disaster risk level is given based on the degree of warning danger after fusion.

[0025] For areas where gas cannot be generated, disaster risk warnings are issued through threshold units. The threshold units are determined solely by the main indicators. As long as the main indicators are greater than the given threshold, the corresponding disaster risk level is given.

[0026] Furthermore, the fusion unit is used to integrate the main indicators and auxiliary indicators collected within a certain location of the mine to obtain the early warning result, and obtain the disaster risk level through the early warning result. If the risk exceeds the critical value of gas disaster, it is displayed as gas disaster alarm information. The alarm level is divided into four levels in descending order of the degree of danger: extremely high, major, relatively high, and general.

[0027] Information that does not exceed the critical value for gas disaster is displayed as a gas disaster hazard warning. The warning levels are arranged in descending order of danger as red, orange, yellow, and blue.

[0028] The beneficial effects of using this invention are:

[0029] This invention is based on the basic information, geological information, gas parameters, and safety monitoring data of all mines within an administrative region. It uses fusion units and threshold units to establish a mathematical model to perform four-level alarms for coal mine gas disasters and four-level early warnings for potential gas disaster hazards. This enables continuous forecasting of potential gas disaster hazards and gas disaster alarms, improving the ability of safety supervision departments to predict gas disasters in large-scale mines in advance and to respond quickly after a gas disaster occurs. It provides a basic platform for safety supervision departments to quickly grasp the gas safety risks of large-scale mines. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the large-area mine gas disaster hazard forecasting and management system of the present invention.

[0031] Figure 2 This is a schematic diagram illustrating the method of superimposing regional disaster risk levels according to the present invention.

[0032] Figure 3 This is a schematic diagram of the early warning rules for the fusion unit of the present invention.

[0033] Figure 4 This is a schematic diagram of the primary interface of the large screen display for early warning of gas disaster hazards and gas disaster alarm of the present invention.

[0034] Figure 5 This is a schematic diagram showing the setup of the methane sensor in the longwall mining face according to the present invention.

[0035] Figure 6 This is a schematic diagram showing the setup of the methane sensor at the tunneling face of the present invention.

[0036] The attached diagram includes the following labels: 1. Data acquisition module, 101. Coal mining enterprise, 102. Data acquisition terminal, 103. Data acquisition frequency, 104. Manual input, 105. Real-time upload, 106. Manually entered data, 107. Safety monitoring; 2. Data processing module, 201. Information center, 202. Data processing unit, 203. Main indicators, 204. Auxiliary indicators; 3. Result display module, 301. Management department, 302. Display screen, 303. Display content, 304. Gas disaster alarm information, 305. Gas disaster hazard warning information; 4. Areas where gas disasters may occur, 401. Drilling site, 402. Tunneling roadway, 403. Longwall face, 404. Mine main roadway, 405. Other chambers in the mine, 406. Mine risk level; 5. Fusion unit, 501. Warning result, 502. Disaster risk level; 6. Threshold unit. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] Reference Figure 1 The large-area mine gas disaster hazard forecasting and management system includes data acquisition module 1, data processing module 2, and result display module 3.

[0040] The data acquisition module 1 includes a data acquisition terminal 102, which is located in the area 4 where a gas disaster may occur. The data acquisition terminal 102 acquires data according to the data acquisition frequency 103. The data acquisition terminal 102 is connected to the data processing module 2 via wired or wireless means, and the data is uploaded to the data processing module 2 by manual input 104 and real-time upload 105.

[0041] The data acquisition module 1 is distributed in the dispatch room of each coal mining enterprise 101 within an administrative region, and each coal mine is allocated a data acquisition terminal 102. The coal mining enterprises upload data according to the data characteristics and the data acquisition frequency 103.

[0042] Manual entry 104 is the manual data 106, which includes intermittent data such as gas level, mine overview, outburst signs, gas parameters, structural parameters, coal seam parameters, production parameters, and outburst indicators.

[0043] The data uploaded in real time (105) mainly includes safety monitoring (107) and other continuously generated information streams, such as gas concentration, wind speed, wind direction, and borehole gas emission.

[0044] The data processing module 2 includes a data processing unit 202, a fusion unit 5, and a threshold unit 6. The data processing module 2 is located in the information center 201. The data processing module 2 divides the data into main indicators 203 and auxiliary indicators 204. The fusion unit 5 and the threshold unit 6 are used to determine the disaster risk level 502. The data processing unit 202 connects the data from the fusion unit 5, the threshold unit 6, and the data acquisition module 1 to the result display module 3 via wired or wireless means.

[0045] The data from the fusion unit 5, the threshold unit 6, and the data acquisition module 1 are processed by the data processing unit 202 to form a data processing result, which is then displayed on the large display screen 302.

[0046] Data processing module 2 divides the collected data into main indicators 203 and auxiliary indicators 204 according to the strength of the factors affecting gas disasters.

[0047] The results display module 3 includes a large display screen 302, which is located in the management department 301. The data processing results obtained by the data processing unit 202 are displayed on the large display screen 302 as display content 303. The display content 303 includes basic mine information, number of gas disasters, key gas parameters, gas disaster alarm information 304, and gas disaster hazard warning information 305.

[0048] Specifically, the main indicator 203 refers to parameters closely related to the properties of gas, including safety monitoring information, gas parameters, outburst indicators, and outburst warning signs.

[0049] The main indicator 203 is divided into four zones according to the degree of danger, which are arranged from the highest to the lowest danger as red, orange, yellow and blue.

[0050] Auxiliary index 204 refers to parameters that have a certain impact on the occurrence of gas disasters, including structural parameters, stress parameters, coal seam parameters, and production parameters.

[0051] The auxiliary indicator 204 is divided into three intervals according to the degree of danger, which are orange, yellow and blue, arranged from the highest to the lowest degree of danger.

[0052] Specifically, gas disaster alarm information 304 includes the number of alarms, alarm location, and alarm level.

[0053] Alarm levels are divided into four levels: extremely serious, major, relatively serious, and general.

[0054] Specifically, the gas disaster hazard warning information 305 includes the number of warnings, the location of the warning, and the warning level.

[0055] The warning levels are divided into four levels: red, orange, yellow, and blue.

[0056] Specifically, the potential gas disaster area 4 includes the gas source area and the non-gas-generating area. The gas source area includes the drilling site 401, the tunneling roadway 402 and the longwall face 403. The non-gas-generating area includes the main mine roadway 404 and other mine chambers 405.

[0057] The gas source area refers to the area that can generate gas. The degree of danger of gas disaster hazards in such areas is determined by the fusion unit 5.

[0058] Areas where gas cannot be generated refer to areas where gas may pass through but the probability of a disaster is relatively low. The degree of danger of gas disaster hazards in such areas is determined by threshold unit 6.

[0059] Tunnel 402 connects to the tunneling face.

[0060] like Figure 2 As shown, the risk level of the gas hazard in the gas source area and the area where gas cannot be generated is superimposed to determine the mine risk level 406.

[0061] Example 2

[0062] The method for predicting potential gas hazards in large-area mines, utilizing the large-area mine gas hazard prediction and management system as described in Example 1, specifically includes the following steps:

[0063] A. A large-area mine gas disaster hazard forecasting and management system is installed in the safety supervision department within an administrative region. Information storage equipment and data processing equipment are installed in the information center 201. A large display screen 302 is installed in the dispatch room of the safety supervision department. Data acquisition terminals 102 are installed in each coal mine within the region. The data acquisition terminals 102 are set up in various departments according to different data management departments. Each department is responsible for uploading data within its own scope.

[0064] The primary interface displayed on the large screen 302 is as follows: Figure 4 As shown;

[0065] B. Based on the data characteristics, the data acquisition frequency 103 is managed in a hierarchical manner, divided into low-frequency information, medium-frequency information, and high-frequency information. The data collected at each level carries specific location information such as mine shaft, working face, roadway, drilling site, and chamber.

[0066] Low-frequency information includes basic mine information, geological structure complexity, maximum burial depth, mining layout, maximum gas content, gas control equipment, etc. This type of information is relatively stable and needs to be manually entered and updated once a year or month.

[0067] Mid-frequency information includes prominent precursor information, local anti-outburst indicators, and daily geological data, which need to be manually entered and updated once a day;

[0068] High-frequency information consists of data from methane and wind speed sensors monitored by safety monitoring system 107. The data is obtained directly from the safety monitoring system 107 in each mine. The data collection frequency is determined based on the server's processing capacity and storage space, and is generally collected once every 30 seconds, 60 seconds, or 90 seconds.

[0069] High-frequency information includes methane concentrations at 10 locations downwind of drilling site 401, methane concentrations at the tunneling face, methane concentrations at the return air corner of the mining face, and methane concentrations in the return air of the mining face.

[0070] The data collected at all levels must include specific location information such as mine shafts, working faces, roadways, drilling sites, and chambers.

[0071] C. The collected data is transmitted to the information storage device of the information center 201 through a dedicated network. The data processing unit 202 processes the data. The gas disaster alarm information 304 uses the gas disaster alarm method to determine the risk level. The gas disaster hazard warning information 305 uses the gas disaster hazard warning method to determine the risk level. When the alarm and warning use the same indicators, a gas disaster occurrence threshold is set. If the threshold is not exceeded, it means that the gas disaster has not occurred. At this time, it belongs to the gas disaster hazard warning interval. If the threshold is exceeded, it means that the gas disaster has occurred. At this time, it belongs to the gas disaster alarm interval.

[0072] The gas disaster alarm method is implemented through threshold unit 6, and specifically includes the following steps:

[0073] Mine gas disaster alarm information 304 is based on the data from safety monitoring 107 and real-time upload 105. It is determined based on the methane concentration at the drilling site, the methane concentration at each location of the tunneling face and the longwall face, the value and duration of the wind speed sensor monitoring data. It presets the methane concentration threshold and duration threshold, and triggers the threshold, which gives the corresponding gas disaster alarm level. When consecutive alarms occur at the same location within a period of time, the alarm level with the highest value is selected to represent the gas risk level of that location.

[0074] The arrangement rules for methane sensors in the longwall mining face and the tunneling face are as follows: Figure 5 and Figure 6 As shown.

[0075] exist Figure 5In the diagram, the locations and codes of the methane sensors are as follows: a0 at the return air corner of the mining face, a1 at the return airway no more than 10m from the cut-in point, a2 at the return airway 10-15m from the main return airway, a3 at the intake airway no more than 10m from the cut-in point, and a4 at the intake airway 10-15m from the main intake airway.

[0076] exist Figure 6 In the process, ventilation ducts are installed in the tunneling roadway, and a local ventilation fan is installed at one end of the ventilation duct, designated as F. The locations and codes of the methane sensors are as follows: b1 on the tunneling roadway no more than 5m away from the tunneling working face; b2 on the tunneling roadway 10-15m away from the return airway; b3 on the return airway 3-5m away from the local ventilation fan; and b4 on the return airway 10-15m away from the tunneling roadway.

[0077] In practical applications, the code for methane sensors is T, and the different positions are numbered T0, T1, T2, etc.

[0078] The gas hazard early warning method is implemented through fusion unit 5 and threshold unit 6, and specifically includes the following steps:

[0079] For gas source areas, gas disaster hazard warnings are issued through fusion unit 5. The main indicator 203 is used as the primary warning basis, and the auxiliary indicator 204 is used as a supplement. Various gas disaster factors are superimposed and fused within a small area. The maximum value of the main indicator 203 and the maximum value of the auxiliary indicator 204 are selected for fusion. The corresponding disaster risk level is given according to the degree of warning danger after fusion.

[0080] The fusion unit 5 is used to integrate the main indicators 203 and auxiliary indicators 204 collected within a certain location of the mine to obtain the early warning result 501. The disaster risk level 502 is obtained through the early warning result 501. If the gas disaster threshold is exceeded, the gas disaster alarm information 304 is displayed. The alarm level is divided into four levels in descending order of danger: extremely high, major, relatively high, and general. If the gas disaster threshold is not exceeded, the gas disaster hazard early warning information 305 is displayed. The alarm level is arranged into four levels in descending order of danger: red, orange, yellow, and blue. This can achieve the continuity of gas disaster hazard early warning and gas disaster alarm.

[0081] Fusion unit early warning rules such as Figure 3As shown, the disaster risk level is blue when the main indicator 203 and the auxiliary indicator 204 are both blue; the disaster risk level is yellow when the main indicator 203 is both blue and the auxiliary indicator 204 are both yellow; the disaster risk level is orange when the main indicator 203 is both blue and the auxiliary indicator 204 are both orange; the disaster risk level is orange when the main indicator 203 is both orange and the auxiliary indicator 204 are both blue; the disaster risk level is orange when the main indicator 203 is both orange and the auxiliary indicator 204 are both blue; the disaster risk level is red when the main indicator 203 is both orange and the auxiliary indicator 204 are both orange; and the disaster risk level is red when the main indicator 203 is both orange and the auxiliary indicator 204 are both orange.

[0082] For areas where gas cannot be generated, disaster risk warnings are issued through threshold unit 6. Threshold unit 6 relies solely on the main indicator 203 for judgment. As long as the main indicator is greater than the given threshold, the corresponding disaster risk level is given.

[0083] D. After the gas disaster alarm information 304 and the gas disaster hazard warning information 305 are determined, the calculation results will be displayed on the large display screen 302 in the dispatch room of the management department 301. The display content 303 includes the basic information of the mine, the number of gas disasters that have occurred in the past, key gas parameters, gas disaster alarm information 304 and gas disaster hazard warning information 305 for the day. Each alarm and warning content is followed by an explanation of the determination conditions.

[0084] The above content is only a preferred embodiment of the present invention. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the concept of the present invention. As long as these changes do not depart from the concept of the present invention, they all fall within the protection scope of the present invention.

Claims

1. A large-area mine gas disaster hazard forecasting and management system, characterized by: It includes a data acquisition module, a data processing module, and a results display module; The data acquisition module includes a data acquisition terminal, which is located in an area where a gas disaster may occur. The data acquisition terminal acquires data according to a data acquisition frequency. The data acquisition terminal is connected to the data processing module via wired or wireless means, and the data acquisition terminal uploads the data to the data processing module through manual input and real-time upload. The data processing module includes a data processing unit, a fusion unit, and a threshold unit. The data processing module is located in the information center. The data processing module divides the data into main indicators and auxiliary indicators. The fusion unit and the threshold unit are used to determine the disaster risk level. The data processing unit connects the data from the fusion unit, the threshold unit, and the data acquisition module to the result display module via wired or wireless means. The results display module includes a large display screen, which is located within the management department. The display screen displays information including basic mine conditions, the number of gas disasters, key gas parameters, gas disaster alarm information, and gas disaster hazard warning information.

2. The large-area mine gas disaster hazard forecasting and management system according to claim 1, characterized in that: The main indicators are parameters closely related to the properties of gas, including safety monitoring information, gas parameters, outburst indicators, and outburst warning signs; The auxiliary indicators are parameters that have a certain impact on the occurrence of gas disasters, including structural parameters, stress parameters, coal seam parameters, and production parameters.

3. The large-area mine gas disaster hazard forecasting and management system according to claim 1, characterized in that: The gas disaster alarm information includes the number of alarms, the location of the alarm, and the alarm level.

4. The large-area mine gas disaster hazard forecasting and management system according to claim 1, characterized in that: The gas disaster hazard early warning information includes the number of warnings, the location of the warning, and the warning level.

5. The large-area mine gas disaster hazard forecasting and management system according to claim 1, characterized in that: The areas where gas disasters may occur include gas source areas and areas where gas cannot be generated. The gas source areas include drilling sites, tunneling roadways, and longwall faces, while the areas where gas cannot be generated include main roadways and other chambers in the mine.

6. A method for predicting potential gas hazards in large-area mines, utilizing the large-area mine gas hazard prediction and management system as described in any one of claims 1 to 5, specifically includes the following steps: A. Install a large-area mine gas disaster hazard forecasting and management system in the safety supervision department within an administrative region. Install information storage and data processing equipment in the information center. Install a large display screen in the dispatch room of the safety supervision department. Install data acquisition terminals in each coal mine within the region. The data acquisition terminals are set up in various departments according to the different data management departments. Each department is responsible for uploading data within its own scope. B. Based on the characteristics of the data, the data acquisition frequency is managed in a hierarchical manner, divided into low-frequency information, medium-frequency information, and high-frequency information. The data collected at each level includes specific location information of the mine, working face, roadway, drilling site, and chamber. C. The collected data is transmitted to the information storage equipment of the information center through a dedicated network. The data processing unit performs calculations on the data. The risk level of gas disaster alarm information is determined by the gas disaster alarm method, which is implemented through a threshold unit. The risk level of gas disaster hazard warning information is determined by the gas disaster hazard warning method, which is implemented through a fusion unit and a threshold unit. When the alarm and warning use the same indicators, a gas disaster occurrence threshold is set. If the threshold is not exceeded, it means that a gas disaster has not yet occurred, and this is within the gas disaster hazard warning range. If the threshold is exceeded, it means that a gas disaster has occurred, and this is within the gas disaster alarm range. D. After the gas disaster alarm information and gas disaster hazard warning information level are determined, the calculation results will be displayed on the large display screen in the management department's dispatch room. The displayed content includes the basic information of the mine, the number of gas disasters that have occurred in the past, key gas parameters, gas disaster alarm information for the day, and gas disaster hazard warning information for the day. Each alarm and warning content is followed by an explanation of the judgment conditions.

7. The method for predicting potential gas hazards in large-area mines according to claim 6, characterized in that: In step B, the low-frequency information includes basic mine information, geological structure complexity, maximum burial depth, mining layout, maximum gas content, and gas control equipment. This type of information is relatively stable and needs to be manually entered and updated once a year or once a month. The intermediate frequency information includes prominent precursor information, local anti-outburst indicators, and daily geological data, which need to be manually entered and updated once a day. The high-frequency information refers to data from methane and wind speed sensors detected by safety monitoring. The data is obtained directly from the safety monitoring of each mine. The data collection frequency is determined based on the server's processing capacity and storage space, and is generally collected once every 30 seconds, 60 seconds, or 90 seconds.

8. The method for predicting potential gas hazards in large-area mines according to claim 6, characterized in that: In step C, the gas disaster alarm method is implemented through a threshold unit, specifically including the following steps: Mine gas disaster alarms are based on real-time data uploaded by safety monitoring. They are determined by the methane concentration at the drilling site, the methane concentration at various locations in the tunneling and mining faces, the values ​​and durations of wind speed sensor monitoring data, and preset methane concentration thresholds, duration thresholds, and trigger thresholds, which in turn give the corresponding gas disaster alarm level. When consecutive alarms occur at the same location within a certain period of time, the alarm level with the highest value is selected to represent the gas risk level of that location.

9. The method for predicting potential gas hazards in large-area mines according to claim 6, characterized in that: In step C, the gas hazard early warning method is implemented through a fusion unit and a threshold unit, specifically including the following steps: For gas source areas, gas disaster hazard warnings are issued through fusion units. The main indicators are used as the primary warning basis, supplemented by auxiliary indicators. Various gas disaster factors are superimposed and fused within a small area. The maximum value of the main indicators and the maximum value of the auxiliary indicators are selected for fusion. The corresponding disaster risk level is given based on the degree of warning danger after fusion. For areas where gas cannot be generated, disaster risk warnings are issued through threshold units. The threshold units are determined solely by the main indicators. As long as the main indicators are greater than the given threshold, the corresponding disaster risk level is given.

10. The method for predicting potential gas hazards in large-area mines according to claim 9, characterized in that: The fusion unit is used to integrate the main indicators and auxiliary indicators collected within a certain location of the mine to obtain the early warning result, and obtain the disaster risk level through the early warning result. If the risk exceeds the critical value of gas disaster, it will be displayed as a gas disaster alarm information. The alarm level is divided into four levels in descending order of the degree of danger: extremely high, major, relatively high, and general. Information that does not exceed the critical value for gas disaster is displayed as a gas disaster hazard warning. The warning levels are arranged in descending order of danger as red, orange, yellow, and blue.

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