A gas drainage system for the high-level drainage roadway in the initial mining face

Abstract

The present invention discloses a gas drainage system for a high-level drainage roadway in the initial mining face, which relates to the technical field of gas drainage in the drainage roadway. The present invention constructs a preset three-dimensional space of the working area through the coordinates of the three-dimensional marking unit, and then combines the preset three-dimensional space of the working area with the images generated by real-time induction to generate a visual dynamic display three-dimensional map, realizing the dynamic and intuitive changes of the dynamic drainage area, the dynamic goaf area and the rock area, indirectly assisting in judging the safety of the working area by the staff, and then obtaining a lighting signal or an alarm signal through the preliminary analysis of the environmental information at the coordinates, so as to directly remind and assist the staff to judge the safety within the fault point or the fault point area range of the working area, and then combining the environmental information with the volumes of the dynamic drainage area and the dynamic goaf area to generate a stability judgment of the corresponding area, thereby directly or indirectly assisting the staff to give an early warning to the dynamic drainage area and the dynamic goaf area again.

Description

Technical Field

[0001] The present invention relates to the technical field of gas drainage in extraction roadways, and particularly to a gas drainage system for high-level extraction roadways in the initial mining face. Background Art

[0002] Gas is a by-product during the coal production process. During the coal mine production process, gas gushes out. The large amount of gas gushing out in the working face is likely to cause disasters such as gas explosions, and also causes a large amount of energy waste and environmental pollution. A method for long-term safe extraction of goaf gas in the mining face of a high-gas mine with the publication number CN112761713B, although a three-dimensional cross network is formed through high-risk inclined boreholes and high-level kilometer-long strike boreholes to achieve all-round three-dimensional extraction of the goaf, there are still some deficiencies. It does not form an information node network, and the main factor considered is the goaf. As a result, the information collected is not comprehensive enough, and the safety judgment results cannot be combined in a point, surface, and three-dimensional manner, resulting in the inability to ensure the safety of the dynamic extraction area and the dynamic goaf area in a pre-reminder manner. Among them, the dynamic extraction area is the coal area that is gradually decreasing, and the dynamic goaf area is the area where the extracted gas is located;

[0003] In view of the above technical defects, a solution is proposed now. Summary of the Invention

[0004] The purpose of the present invention is to construct a preset three-dimensional space of the working area through the coordinates of the three-dimensional marking unit, and then generate a visual dynamic display three-dimensional map by combining the preset three-dimensional space of the working area and the images generated by real-time sensing, so as to realize the dynamic and intuitive changes of the dynamic extraction area, the dynamic goaf area, and the rock area, indirectly assist in judging the safety of the working area by the staff, and then initially analyze the environmental information at the coordinates to obtain a lighting signal or an alarm signal, so as to directly remind and assist the staff to judge the safety within the fault point or the fault point area range of the working area, and then combine the environmental information with the volumes of the dynamic extraction area and the dynamic goaf area to generate a stability judgment for the corresponding area, thereby directly or indirectly assisting the staff to give early warnings to the dynamic extraction area and the dynamic goaf area again, and ensuring the safety of the dynamic extraction area and the dynamic goaf area in a pre-reminder manner.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gas drainage system for high-level extraction roadways in the initial mining face includes a roadway induction unit, a three-dimensional marking unit, a supervision server, and a visualization terminal; the roadway induction unit and the supervision server are signal-connected based on a local area network, and the supervision server is signal-connected to the three-dimensional marking unit and the visualization terminal; among them, there are multiple roadway induction units, and the roadway induction units are equidistantly installed in the working area;

[0007] The three-dimensional marking unit is used to mark the coordinates generated by the roadway induction unit, and then generate a coordinate three-dimensional space by combining the coordinates with a preset three-dimensional space, and send the coordinate three-dimensional space to the supervision server;

[0008] The roadway induction unit is used to sense the environmental information of the working area in real time, and then combine the environmental information with the coordinates to generate coordinate area information; it also sends the generated coordinate area information to the supervision server;

[0009] The supervision server is used to receive the coordinate three-dimensional space and the coordinate area information, generate a coordinate information space by the method of matching the same coordinates, and is also used to determine the coordinate area information in the coordinate information space, and generate a dynamic display three-dimensional map for comprehensively supervising the safety of the entire working area, and send the dynamic display three-dimensional map to the visualization terminal for refreshing display.

[0010] Further, the environmental information of the working area consists of the environmental image of the coordinate area and the ground gas information, where the ground gas information consists of the temperature value, air pressure value, vibration frequency value and vibration amplitude value at the coordinate.

[0011] Further, the supervision server includes a data storage unit, an image analysis unit, an environmental analysis unit and an optimization feedback unit;

[0012] The data storage unit is used to receive and store the dynamic display three-dimensional map;

[0013] The image analysis unit obtains the dynamic display three-dimensional map through the data storage unit, extracts the environmental images of the coordinate areas within all the coordinate area information, and then processes the environmental images of the coordinate areas to generate a dynamic goaf area, a dynamic extraction area and a rock area, and adjusts the brightness of the generated areas in the real-time area three-dimensional map to dynamically divide the dynamic display three-dimensional map;

[0014] The environmental analysis unit extracts the dynamic display three-dimensional map through the data storage unit, then obtains the ground gas information within all the coordinate area information, and compares the data in the ground gas information with the corresponding preset ground gas intervals respectively. When all the data in the ground gas information are within the corresponding preset ground gas intervals, the roadway induction unit operates normally. When any of the data in the ground gas information is no longer within the corresponding preset ground gas interval, a warning signal is generated, and when the warning signal is generated, a warning signal processing operation is performed;

[0015] When all the data in the ground gas information are within the corresponding preset ground gas intervals, the optimization feedback unit extracts the environmental information of the working area in real time and performs normalization classification processing on it to generate the environmental stability coefficient of the dynamic extraction area and the environmental stability coefficient of the dynamic goaf area, and realizes the dynamic detection and warning of the dynamic goaf area and the dynamic extraction area through the environmental stability coefficient for detection operation;

[0016] Further, the processing procedure of the image analysis unit is as follows:

[0017] Perform gray-scale contouring on the environmental image of the coordinate area to generate a contour area map, and fuse the overlapping parts of adjacent contour area maps and eliminate the contour surfaces between the intersecting side lines. Repeat the above process to perform full fusion processing on the environmental image of the coordinate area to generate a three-dimensional contour area map. Then, intercept the same volume of the three-dimensional contour area map at the same position through the preset three-dimensional space of the working area, and generate a real-time area three-dimensional map. Then, extract the gray value at any coordinate in the real-time area three-dimensional map, and compare and eliminate the gray value in combination with the preset gray interval to form a dynamic goaf, a dynamic extraction area, and a rock area.

[0018] Further, the specific process of the warning signal processing operation is as follows:

[0019] Send a reciprocating signal to the roadway induction unit, collect the transmission time of the reciprocating signal, and subtract the transmission time from the preset transmission time to obtain a transmission deviation value; where the transmission time is the difference between the sending time and the receiving time of the reciprocating signal; when the roadway induction unit stops operating, when the transmission time is 0 or when the transmission deviation value is greater than or equal to the preset deviation value, a candidate signal is generated;

[0020] Then, with the coordinates of the candidate signal as the center, obtain the number of all warning signals within the preset area, and subtract the number of warning signals from the preset warning number to obtain a number deviation. When the number deviation is less than the preset deviation value, a warning lighting signal is generated; otherwise, an alarm lighting signal is generated;

[0021] When the warning lighting signal is generated, the coordinates corresponding to all warning signals within the preset area are displayed in yellow; when the alarm lighting signal is generated, the coordinates corresponding to all warning signals within the preset area are displayed in red;

[0022] The corresponding coordinates of the red display and the yellow display are also displayed in the dynamic display three-dimensional map;

[0023] And immediately edit an alarm warning reminder text after the alarm lighting signal is generated, and send it to the broadcast for broadcasting.

[0024] Further, the specific process of the normalization process is as follows:

[0025] After subtracting the temperature value, air pressure value, vibration frequency value, and vibration amplitude value in the working area from their corresponding preset measurement values respectively, the absolute values of the subtraction differences are obtained; after subtracting the volume of the dynamic extraction area and the volume of the dynamic goaf from their corresponding preset dynamic volumes respectively, the volume change values are obtained, and the environmental reference value is obtained through the normalization formula; then the preset geogas interval stored in the data storage unit is extracted, and the maximum value and minimum value of the preset geogas interval are marked as hmax and hmin respectively. Through the formula , the environmental measurement value H0 is obtained; all environmental measurement values at the dynamic extraction area and the dynamic goaf are obtained, the average value and standard deviation of the dynamic extraction area and the dynamic goaf are calculated respectively through the environmental measurement values, and then the standard deviation and the average value are divided to obtain the environmental stability coefficient of the dynamic extraction area and the environmental stability coefficient of the dynamic goaf respectively.

[0026] Furthermore, the specific process of dynamic monitoring and early warning is as follows

[0027] Compare the environmental stability coefficient of the dynamic extraction area and the environmental stability coefficient of the dynamic goaf with their corresponding preset stability values respectively. When they are respectively greater than their corresponding preset stability values, generate maintenance signals for the dynamic extraction area and / or the dynamic goaf; then send the environmental stability coefficients to the corresponding positions of the dynamic extraction area and the dynamic goaf in the dynamic display three-dimensional diagram of the visualization terminal. When the corresponding maintenance signals are generated, control the corresponding dynamic extraction area and / or the dynamic goaf to flash, and also send the environmental stability coefficients to the data storage unit for storage.

[0028] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows

[0029] The present invention constructs a preset three-dimensional space of the working area through the coordinates of the three-dimensional marking unit, and then combines the preset three-dimensional space of the working area with the images generated by real-time induction to generate a visual dynamic display three-dimensional diagram, realizing the dynamic and intuitive changes of the dynamic extraction area, the dynamic goaf, and the rock area, indirectly assisting the judgment of the safety of the working area by the staff, and then obtaining the lighting signal or alarm signal through the preliminary analysis of the environmental information at the coordinates, directly reminding and assisting the staff to judge the safety within the fault point or the fault point area range of the working area, and then combining the environmental information with the volumes of the dynamic extraction area and the dynamic goaf to generate the stability judgment of the corresponding area, thereby directly or indirectly assisting the staff to give early warnings to the dynamic extraction area and the dynamic goaf again, and ensuring the safety of the dynamic extraction area and the dynamic goaf in a pre-reminding manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Shows the structural block diagram of the present invention;

[0031] Figure 2 shows the structural block diagram of the present invention; Specific embodiments

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0033] As Figure 1 shown in FIG. -3, a gas drainage system for a high-level drainage roadway in an initial mining face includes a roadway induction unit, a three-dimensional marking unit, a supervision server, and a visualization terminal; the roadway induction unit and the supervision server are signal-connected based on a local area network, and the supervision server is signal-connected to the three-dimensional marking unit and the visualization terminal; wherein there are multiple roadway induction units, and the roadway induction units are equidistantly installed in the working area;

[0034] The three-dimensional marking unit is used to mark the coordinates generated by the roadway induction unit, and then generate a coordinate three-dimensional space by combining the coordinates with a preset three-dimensional space, and send the coordinate three-dimensional space to the supervision server; the roadway induction unit includes a housing, an ultrasonic sensor, a temperature sensor, a pressure sensor, a vibration sensor, a signal module, etc., so as to sense various parameter conditions in the working area in real time and send them to the corresponding supervision server for processing;

[0035] The roadway induction unit is used to sense the environmental information in the working area in real time, and then generate coordinate area information by combining the environmental information with the coordinates; the generated coordinate area information is also sent to the supervision server;

[0036] The environmental information in the working area is composed of the environmental image and the underground gas information in the coordinate area, and the underground gas information is composed of the temperature value, the pressure value, the vibration frequency value, and the vibration amplitude value at the coordinate; the environmental image in the coordinate area is generated by the ultrasonic sensor, the temperature value is generated by the temperature sensor, the pressure value is generated by the pressure sensor, and both the vibration frequency value and the vibration amplitude value are generated by the vibration sensor; the vibration frequency value and the vibration amplitude value in the working area are the geological environment, and the temperature value and the pressure value in the working area are the gas environment;

[0037] The supervision server is used to receive the coordinate stereoscopic space and the coordinate area information, generate the coordinate information space by matching the same coordinates, and determine the coordinate area information in the coordinate information space to directly or indirectly assist the staff to supervise the dynamic display stereoscopic map of the entire work area, and also send the dynamic display stereoscopic map to the visualization terminal for refresh display;

[0038] The supervision server includes a data storage unit, an image analysis unit, an environment analysis unit and an optimization feedback unit;

[0039] Working principle:

[0040] Step 1: The data storage unit is used to receive and store the dynamic display stereogram;

[0041] Step 3, the image analysis unit obtains the dynamic display stereogram through the data storage unit, and extracts the environment image of the coordinate area within all the coordinate area information, then performs grayscale contouring on the environment image of the coordinate area to generate a contour area map, and fuses the overlapping parts of adjacent contour area maps and eliminates the contour surface between the intersecting edges, repeats the above process to perform all the fusion processing on the environment image of the coordinate area to generate a contour area stereogram, and then intercepts the same volume of the contour area stereogram at the same position through the preset three-dimensional space of the working area, thereby generating a real-time area stereogram;

[0042] Extract the grayscale value at any coordinate in the real-time regional stereogram, and mark the grayscale value as Hi, where the value range of i is a natural number, and then obtain the preset grayscale interval h through the data storage unit:

[0043] Obtain the coordinates whose grayscale value Hi is less than or equal to the minimum value of the preset grayscale interval h, and connect the adjacent coordinates to form a preliminary goaf area, and then remove the coordinates whose grayscale value Hi in the preliminary goaf area is greater than the minimum value of the preset grayscale interval h to form a dynamic goaf area;

[0044] Obtain the coordinates whose grayscale value Hi is greater than the minimum value of the preset grayscale interval h and less than or equal to its maximum value, and connect the adjacent coordinates to form a preliminary sampling area, and then remove the coordinates whose grayscale value Hi is less than or equal to the minimum value of the preset grayscale interval h and greater than its maximum value in the preliminary sampling area to form a dynamic sampling area;

[0045] Obtain the coordinates whose grayscale value Hi is greater than the maximum value of the preset grayscale interval h, and connect the adjacent coordinates to form a rock area; and adjust the brightness of the rock area, dynamic extraction area and dynamic goaf area in the real-time regional stereogram, that is, the brightness of the dynamic extraction area, dynamic goaf area and rock area is dimmed in turn, so as to divide the dynamic display stereogram into variables; through brightness control, the staff can intuitively observe the changes in the dynamic extraction area, dynamic goaf area and rock area, so as to indirectly judge whether there are safety hazards in the working area;

[0046] Step 3: The environmental analysis unit extracts the dynamic display three-dimensional map through the data storage unit, then obtains the ground-air information within all coordinate area information, and compares the data in the ground-air information with the corresponding preset ground-air intervals respectively. When all the data in the ground-air information are within the corresponding preset ground-air intervals, the roadway induction unit operates normally. When any of the data in the ground-air information is no longer within the corresponding preset ground-air interval, a warning signal is generated. After the warning signal is generated, a warning signal processing operation is performed. The specific process of the warning signal processing operation is as follows:

[0047] Send a reciprocating signal to the roadway induction unit, collect the transmission time of the reciprocating signal, and subtract the transmission time from the preset transmission time to obtain a transmission deviation value; where the transmission time is the difference between the sending time and the receiving time of the reciprocating signal; when the roadway induction unit stops operating, when the transmission time is 0, it means that the reciprocating signal that returns cannot be received; and a candidate signal is generated; when the transmission deviation value is greater than or equal to the preset deviation value, a candidate signal is generated;

[0048] Then, centered on the coordinates of the candidate signal, obtain the number of all warning signals within the preset area, and subtract the number of warning signals from the preset warning number to obtain a quantity deviation. When the quantity deviation is less than the preset deviation value, a warning lighting signal is generated. Otherwise, an alarm lighting signal is generated;

[0049] When the warning lighting signal is generated, the coordinates corresponding to all warning signals within the preset area are displayed in yellow;

[0050] When the alarm lighting signal is generated, the coordinates corresponding to all warning signals within the preset area are displayed in red;

[0051] The corresponding coordinates of the red display and the yellow display are also displayed in the dynamic display three-dimensional map;

[0052] And immediately edit the alarm warning reminder text after the alarm lighting signal is generated, and also send the warning reminder text to the broadcast for broadcasting, which is used to assist in reminding the staff to take emergency shelter;

[0053] Step 4: When all the data in the ground-air information are within the corresponding preset ground-air intervals, the optimization feedback unit extracts the environmental information of the working area in real time and performs normalization processing on it to generate an environmental reference value;

[0054] The specific process of the normalization processing:

[0055] After subtracting the temperature value, air pressure value, vibration frequency value, and vibration amplitude value in the working area from their corresponding preset measurement values respectively, the absolute values of the subtraction differences are obtained, and the absolute values are marked as W, Q, P, and F respectively; after subtracting the volume of the dynamic extraction area and the volume of the dynamic goaf from their corresponding preset dynamic volumes respectively, the volume change values are obtained and are respectively calibrated as M1 and M2;

[0056] Through the formula , the environmental reference value H is obtained; where k1, k2, k3, k4, k5, k6, and k7 are all weight correction coefficients; the weight correction coefficients make the calculation results closer to the true value, k1 + k2 + k3 + k4 + k5 + k6 + k7 = 23.46, k4 > k3 > k5 > k7 > k6 > k2 > k1, and k5 + k7 = 1; the weight correction coefficients are obtained through a large number of data simulations and corrections;

[0057] Then extract the preset earth gas interval stored in the data storage unit, and mark the maximum value and minimum value of the preset earth gas interval as hmax and hmin respectively, and then through the formula , the environmental measurement value H0 is obtained;

[0058] Obtain all the environmental measurement values H0 at the dynamic extraction area and the dynamic goaf, calculate the average value and standard deviation of the dynamic extraction area and the dynamic goaf respectively through the environmental measurement value H0, and then divide the standard deviation by the average value to obtain the environmental stability coefficient of the dynamic extraction area and the environmental stability coefficient of the dynamic goaf respectively;

[0059] Perform a detection operation through the environmental stability coefficient, and the specific process of the detection operation is as follows:

[0060] And compare the environmental stability coefficient of the dynamic extraction area and the environmental stability coefficient of the dynamic goaf with their corresponding preset stability values respectively. When they are respectively greater than their corresponding preset stability values, generate a maintenance signal for the dynamic extraction area and / or the dynamic goaf; otherwise, no signal is generated;

[0061] Then send the environmental stability coefficient to the dynamic extraction area and the dynamic goaf display at the corresponding position of the dynamic display three-dimensional map of the visualization terminal. When the corresponding maintenance signal is generated, control the dynamic extraction area and / or the dynamic goaf corresponding to the dynamic display three-dimensional map to flash, so as to remind the staff to perform pressure relief, pressure increase, geological detection, equipment detection, etc.; further enable the staff to more intuitively observe the changes in the dynamic extraction area and the dynamic goaf, so as to distinguish and judge the changes in the dynamic extraction area and the dynamic goaf; also send the environmental stability coefficient to the data storage unit for storage for subsequent retrieval and viewing by the staff.

[0062] Based on the above technical solutions, the present invention constructs a preset three-dimensional space of the working area through the coordinates of the three-dimensional marking unit, and then combines the preset three-dimensional space of the working area with the images generated by real-time sensing to generate a visual dynamic display three-dimensional map, realizing the dynamic and intuitive changes of the dynamic extraction area, the dynamic goaf area and the rock area, indirectly assisting in judging the safety of the working area by the staff, and then obtaining a lighting signal or an alarm signal through preliminary analysis of the environmental information at the coordinates, so as to directly remind and assist the staff to judge the safety within the fault point or the fault point area of the working area. Then, the environmental information is combined with the volumes of the dynamic extraction area and the dynamic goaf area to generate a stability judgment of the corresponding area, thereby directly or indirectly assisting the staff to give early warnings to the dynamic extraction area and the dynamic goaf area again, and ensuring the safety of the dynamic extraction area and the dynamic goaf area in a pre-reminding manner.

[0063] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A gas drainage system for a high-level drainage roadway in the initial mining face, characterized in that, it includes a roadway induction unit, a three-dimensional marking unit, a supervision server and a visualization terminal; the roadway induction unit and the supervision server are signal-connected based on a local area network, and the supervision server is signal-connected to the three-dimensional marking unit and the visualization terminal; among them, there are multiple roadway induction units, and the roadway induction units are installed equidistantly in the working area; The three-dimensional marking unit is used to mark the coordinates generated by the roadway induction unit, and then generate a coordinate three-dimensional space by combining the coordinates with a preset three-dimensional space, and send the coordinate three-dimensional space to the supervision server; The roadway induction unit is used to sense the environmental information of the working area in real time, and then combine the environmental information with the coordinates to generate coordinate area information; it also sends the generated coordinate area information to the supervision server; The supervision server is used to receive the coordinate three-dimensional space and the coordinate area information, generate a coordinate information space by the method of matching the same coordinates, and is also used to determine the coordinate area information in the coordinate information space, and generate a dynamic display three-dimensional map for comprehensively supervising the safety of the entire working area, and send the dynamic display three-dimensional map to the visualization terminal for refreshing display; The environmental information of the working area consists of the environmental image of the coordinate area and the ground gas information, where the ground gas information consists of the temperature value, air pressure value, vibration frequency value and vibration amplitude value at the coordinates; The supervision server includes a data storage unit, an image analysis unit, an environmental analysis unit and an optimization feedback unit; The data storage unit is used to receive and store the dynamic display three-dimensional map; The image analysis unit obtains the dynamic display three-dimensional map through the data storage unit, extracts the environmental images of the coordinate areas within all the coordinate area information, and then processes the environmental images of the coordinate areas to generate a dynamic goaf, a dynamic drainage area and a rock area, and adjusts the brightness of the generated areas in the real-time area three-dimensional map to dynamically divide the dynamic display three-dimensional map; The environmental analysis unit extracts the dynamic display three-dimensional map through the data storage unit, then obtains the ground gas information within all the coordinate area information, and compares the data in the ground gas information with the corresponding preset ground gas intervals respectively. When the data in the ground gas information are all within the corresponding preset ground gas intervals, the roadway induction unit operates normally. When any of the data in the ground gas information is no longer within the corresponding preset ground gas interval, a warning signal is generated, and when the warning signal is generated, a warning signal processing operation is performed; When the data in the ground gas information are all within the corresponding preset ground gas intervals, the optimization feedback unit extracts the environmental information of the working area in real time and performs normalization classification processing on it to generate the environmental stability coefficient of the dynamic drainage area and the environmental stability coefficient of the dynamic goaf, and realizes the dynamic detection and warning of the dynamic goaf and the dynamic drainage area through the environmental stability coefficient detection operation; The processing process of the image analysis unit is as follows: The environmental image of the coordinate area is subjected to gray-scale contouring to generate a contour area map, and the overlapping parts of adjacent contour area maps are fused and the contour surfaces between the intersecting side lines are eliminated. The above process is repeated to perform full fusion processing on the environmental image of the coordinate area to generate a three-dimensional contour area map. Then, the same volume of the three-dimensional contour area map at the same position is intercepted through the preset three-dimensional space of the working area, and a real-time area three-dimensional map is generated. Then, the gray value at any coordinate in the real-time area three-dimensional map is extracted, and the gray value is combined with the preset gray interval for comparison and elimination to form a dynamic goaf area, a dynamic extraction area, and a rock area; The specific process of the processing operation of the warning signal is as follows: A reciprocating signal is sent to the roadway induction unit, and the transmission time of the reciprocating signal is collected. The transmission time is subtracted from the preset transmission time to obtain a transmission deviation value; where the transmission time is the difference between the sending time and the receiving time of the reciprocating signal; when the roadway induction unit stops operating, when the transmission time is 0 or when the transmission deviation value is greater than or equal to the preset deviation value, a candidate signal is generated; Then, with the coordinates of the candidate signal as the center, the number of all warning signals within the preset area is obtained, and the number deviation is obtained by subtracting the number of warning signals from the preset warning number. When the number deviation is less than the preset deviation value, a warning lighting signal is generated; otherwise, an alarm lighting signal is generated; When the warning lighting signal is generated, the coordinates corresponding to all warning signals within the preset area are displayed in yellow; when the alarm lighting signal is generated, the coordinates corresponding to all warning signals within the preset area are displayed in red; The corresponding coordinates of the red display and the yellow display are also displayed in the dynamic display three-dimensional map; And immediately after the alarm lighting signal is generated, an alarm warning reminder text is edited and sent to the broadcast for broadcasting.

2. A gas drainage system for a high-level drainage roadway in the initial mining face according to claim 1, characterized in that The specific process of normalization processing is as follows: After subtracting the temperature value, air pressure value, vibration frequency value, and vibration amplitude value in the working area from their corresponding preset measurement values respectively, the absolute values of the subtraction differences are obtained, and the absolute values are marked as W, Q, P, and F respectively; after subtracting the volume of the dynamic extraction area and the volume of the dynamic goaf from their corresponding preset dynamic volumes respectively, the volume change values are obtained, and they are respectively calibrated as M1 and M2. Through the formula , the environmental reference value H is obtained through the normalization formula, where k1, k2, k3, k4, k5, k6, and k7 are all weight correction coefficients. The weight correction coefficients make the calculation results closer to the true values. k1 + k2 + k3 + k4 + k5 + k6 + k7 = 23.46, k4 > k3 > k5 > k7 > k6 > k2 > k1, and k5 + k7 = 1. The weight correction coefficients are obtained through a large amount of data simulation and correction; Extract the preset ground gas interval stored in the data storage unit again, and mark the maximum value and the minimum value of the preset ground gas interval as hmax and hmin respectively. Through the formula , the environmental measurement value H0 is obtained; obtain all the environmental measurement values at the dynamic extraction area and the dynamic goaf area, calculate the average value and the standard deviation of the dynamic extraction area and the dynamic goaf area respectively through the environmental measurement values, and then divide the standard deviation by the average value to obtain the environmental stability coefficient of the dynamic extraction area and the environmental stability coefficient of the dynamic goaf area respectively.

3. A gas drainage system for a high-level drainage roadway in the initial mining face according to claim 2, characterized in that The specific process of dynamic detection and warning is as follows: The environmental stability coefficients of the dynamic extraction area and the dynamic goaf area are respectively compared with the corresponding preset stability values. When they are respectively greater than the corresponding preset stability values, a maintenance signal for the dynamic extraction area and / or the dynamic goaf area is generated; then the environmental stability coefficients are respectively sent to the corresponding positions of the dynamic extraction area and the dynamic goaf area in the dynamic display three-dimensional map of the visualization terminal. When the corresponding maintenance signal is generated, the corresponding dynamic extraction area and / or the dynamic goaf area are controlled to flash, and the environmental stability coefficients are also sent to the data storage unit for storage.

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