Coal gangue pile body anomaly alarm method and system

Abstract

This application relates to an abnormal alarm method and system for coal gangue piles, specifically in the field of spontaneous combustion alarms. The method includes acquiring infrared images of the junction of the coal gangue pile top and the hillside, a first color image of the bottom of the coal gangue pile, and a second color image of the slope surface of the coal gangue pile. It determines whether there are abnormal temperature regions in the infrared images. If abnormal temperature regions exist, it identifies crack features in the first and second color images to obtain first crack features at the bottom of the coal gangue pile and second crack features on the slope surface. Based on the abnormal temperature regions, the first crack features, and the second crack features, it analyzes the abnormal values ​​of spontaneous combustion within the coal gangue pile to obtain the internal spontaneous combustion abnormal value. If the spontaneous combustion abnormal value reaches a preset abnormal value threshold, an alarm is triggered. This application can more accurately determine the degree of internal spontaneous combustion caused by the chimney effect and trigger an alarm based on the degree of spontaneous combustion.

Description

Technical Field

[0001] This application relates to the field of spontaneous combustion alarms, and in particular to a method and system for alarming abnormalities in coal gangue piles. Background Technology

[0002] Coal gangue is a by-product of coal mining. It is a type of blackish-gray rock with a low carbon content and harder than coal, which is formed along with coal seams during coal formation. Currently, coal gangue is usually piled up on-site near the mine. Because the coal gangue pile contains combustible materials such as residual coal and pyrite, it undergoes an oxidation reaction upon contact with air during long-term accumulation, releasing heat and gradually accumulating. When the temperature reaches the ignition point of the combustibles, it spontaneously combusts.

[0003] Because the coal gangue pile cannot be completely bonded to the hillside where it is stored, cracks appear at the junction. These cracks extend into the coal gangue pile, forming air intake channels. As heat is expelled upwards along these channels, a chimney effect can easily occur. This means that air enters the pile from gaps at the bottom or surface, and this chimney effect further fuels spontaneous combustion within the pile. Currently, spontaneous combustion is mainly detected by inserting a temperature probe into the coal gangue pile. However, this method is somewhat limited and does not accurately determine the extent of internal spontaneous combustion caused by the chimney effect, nor can it trigger an alarm based on that level. Therefore, accurately determining the degree of internal spontaneous combustion caused by the chimney effect and triggering an alarm based on that level has become a problem. Summary of the Invention

[0004] In order to more accurately determine the degree of internal spontaneous combustion caused by the chimney effect and to issue an alarm based on the degree of spontaneous combustion, this application provides a method and system for alarming abnormalities in coal gangue piles.

[0005] Firstly, this application provides a method for alarming abnormalities in coal gangue piles, employing the following technical solution: A method for alarming abnormalities in a coal gangue pile, comprising: Acquire infrared images of the junction between the top of the coal gangue pile and the mountain, a first color image of the bottom of the coal gangue pile, and a second color image of the slope of the coal gangue pile; Determine whether there are any abnormal temperature regions in the infrared image; If there is an area of ​​abnormal temperature, crack feature identification is performed on the first color image and the second color image to obtain the first crack feature at the bottom of the coal gangue pile and the second crack feature on the slope of the coal gangue pile. Based on the temperature anomaly region, the characteristics of the first crack and the characteristics of the second crack, anomaly values ​​of spontaneous combustion inside the coal gangue pile were analyzed to obtain the spontaneous combustion anomaly values ​​inside the coal gangue pile. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, an alarm will be triggered.

[0006] By employing the above technical solution, infrared images of the junction of the top and bottom of the coal gangue pile are obtained to facilitate understanding of the temperature at the top. When spontaneous combustion occurs inside, heat will dissipate upwards and eventually be released to the outside from the top, leading to an increase in temperature at the junction of the top and bottom. Obtaining first and second color images facilitates subsequent identification of cracks at the bottom and surface of the pile. Air will enter the pile through cracks due to the chimney effect, further intensifying spontaneous combustion. The presence of abnormal temperature areas in the infrared images indicates the presence of spontaneous combustion. Crack feature identification is performed on the first and second color images to obtain the pile structure. The first crack feature at the bottom and the second crack feature on the slope of the pile body indicate that air will enter the pile body through these cracks under the chimney effect, thus aggravating spontaneous combustion. In summary, the temperature anomaly area, the first crack feature, and the second crack feature are all key factors affecting the degree of spontaneous combustion inside the pile body under the chimney effect. Therefore, by comprehensively analyzing the temperature anomaly area at the top of the pile body and the cracks at the bottom and slope of the pile body, an accurate spontaneous combustion anomaly value of the degree of spontaneous combustion inside the pile body caused by the chimney effect can be obtained. A preset anomaly value threshold is used as the dividing point for excessively high spontaneous combustion anomaly values. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, an alarm will be triggered, thereby indicating that the degree of spontaneous combustion inside the pile body is severe.

[0007] In another possible implementation, the analysis of anomalous values ​​for spontaneous combustion within the coal gangue pile, based on the temperature anomaly region, the characteristics of the first crack, and the characteristics of the second crack, yields the anomalous values ​​for spontaneous combustion within the coal gangue pile, including: Determine the area and maximum temperature value of each temperature anomaly region; The first severity score for each temperature anomaly region is determined based on its area and the highest temperature value. The number of all temperature anomaly zones was determined, and a first anomaly value for the temperature performance at the top of the coal gangue pile was determined based on the first severity score of each temperature anomaly zone and the total number of temperature anomaly zones. A second anomaly value was determined based on the first and second crack characteristics regarding the severity of air ingress into the coal gangue pile. The spontaneous combustion anomaly value inside the coal gangue pile is determined based on the first anomaly value and the second anomaly value.

[0008] In another possible implementation, determining the first anomaly value regarding the temperature performance at the top of the coal gangue pile based on a first severity score for each temperature anomaly region and the total number of temperature anomaly regions includes: Determine the sum of the first severity scores for all areas of temperature anomaly; The first anomaly value for the temperature performance at the top of the coal gangue pile is based on the sum of the first severity scores and the number of all temperature anomaly areas.

[0009] In another possible implementation, determining the second anomaly regarding the severity of air intrusion into the coal gangue pile based on the first and second crack features includes: The length and area of ​​each first crack feature are determined, and a second severity score for each first crack feature is determined based on the length and area; Determine the number of all first crack features at the bottom of the coal gangue pile and the total length of all first crack features; Calculate the ratio of the total length of all the first crack features to a preset length, where the preset length is the total length of the bottom edge of the coal gangue pile; An anomaly score for a first crack feature is determined based on the second severity score of each first crack feature, the number of all first crack features, and the ratio of the total length to a preset length. Based on the anomalous scores of the first crack feature and the second crack feature, a second anomalous value is determined regarding the severity of air ingress into the coal gangue pile.

[0010] In another possible implementation, determining a second anomaly value regarding the severity of air intrusion into the coal gangue pile based on the anomaly score of the first crack feature and the second crack feature includes: Determine the number of second crack features and identify the intersection nodes caused by the intersection of the second crack features; Determine the area of ​​each intersecting node and the total number of intersecting nodes; All second crack features are mapped onto a pre-defined coal gangue pile model to obtain the coordinates of the two ends of each second crack feature and the coordinates of each intersecting node. The coordinates of both ends of all the second crack features are numbered in clockwise or counterclockwise order, and lines are connected in order according to the numbers to obtain the first graphic of the area covered by all the second crack features. The outermost node is determined from the coordinates of all intersecting nodes, and the outermost node is connected sequentially to obtain a second graph of the area covered by all intersecting nodes. Determine the area of ​​the first shape and the area of ​​the second shape; An anomaly score for the second crack feature is determined based on the number of the second crack feature, the area of ​​each intersecting node, the total number of intersecting nodes, the area of ​​the first shape, and the area of ​​the second shape. Based on the anomalous scores for the first crack feature and the anomalous scores for the second crack feature, a second anomalous value is determined regarding the severity of air ingress into the coal gangue pile.

[0011] In another possible implementation, the method further includes: All temperature anomaly regions and their respective highest temperature values ​​are mapped onto a preset coal gangue pile model to obtain the mapped preset coal gangue pile model. The output displays the pre-mapped coal gangue pile model.

[0012] In another possible implementation, the alarm activation includes: The system sends the spontaneous combustion anomaly value to the terminal devices of relevant personnel and controls the host computer, buzzer, and indicator lights to activate the alarm.

[0013] Secondly, this application provides an alarm system for abnormal coal gangue piles, which adopts the following technical solution: An alarm system for abnormal coal gangue piles includes: The image acquisition module is used to acquire infrared images of the junction between the top of the coal gangue pile and the mountain, a first color image of the bottom of the coal gangue pile, and a second color image of the slope of the coal gangue pile. The judgment module is used to determine whether there are abnormal temperature areas in the infrared image; The feature recognition module is used to identify crack features in the first color image and the second color image when there is a temperature anomaly area, so as to obtain the first crack feature at the bottom of the coal gangue pile and the second crack feature on the slope of the coal gangue pile. The analysis module is used to perform anomaly analysis of spontaneous combustion inside the coal gangue pile based on the temperature anomaly area, the characteristics of the first crack, and the characteristics of the second crack, so as to obtain the spontaneous combustion anomaly value inside the coal gangue pile. An alarm module is used to trigger an alarm when the spontaneous combustion anomaly value reaches a preset anomaly value threshold.

[0014] By adopting the above technical solution, the image acquisition module acquires infrared images of the junction of the top and bottom of the coal gangue pile to facilitate understanding of the temperature at the top. When spontaneous combustion occurs inside, heat will dissipate upwards and eventually be released to the outside from the top, thus causing the temperature at the junction of the top and bottom to rise. The image acquisition module acquires first and second color images to facilitate subsequent identification of cracks at the bottom and surface of the pile. Air will enter the pile through the cracks due to the chimney effect, further intensifying spontaneous combustion. The judgment module determines whether there are abnormal temperature areas in the infrared images. If abnormal temperature areas are present, it indicates that spontaneous combustion exists inside. The feature recognition module performs crack feature analysis on the first and second color images. The system identifies the first crack feature at the bottom of the reactor body and the second crack feature on the slope of the reactor body. Air will enter the reactor body through these cracks under the effect of the chimney effect, thus aggravating spontaneous combustion. In summary, the temperature anomaly area, the first crack feature, and the second crack feature are all key factors affecting the degree of spontaneous combustion inside the reactor body under the chimney effect. Therefore, the analysis module can obtain an accurate spontaneous combustion anomaly value of the degree of spontaneous combustion inside the reactor body caused by the chimney effect by comprehensively analyzing the temperature anomaly area at the top of the reactor body and the cracks at the bottom and slope of the reactor body. The preset anomaly value threshold is used as the dividing point for excessively high spontaneous combustion anomaly values. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, the alarm module will sound an alarm, thereby indicating that the degree of spontaneous combustion inside the reactor body is severe.

[0015] In another possible implementation, when the analysis module performs anomaly analysis on the spontaneous combustion anomaly inside the coal gangue pile based on the temperature anomaly region, the characteristics of the first crack, and the characteristics of the second crack, and obtains the spontaneous combustion anomaly value inside the coal gangue pile, it is specifically used for: Determine the area and maximum temperature value of each temperature anomaly region; The first severity score for each temperature anomaly region is determined based on its area and the highest temperature value. The number of all temperature anomaly zones was determined, and a first anomaly value for the temperature performance at the top of the coal gangue pile was determined based on the first severity score of each temperature anomaly zone and the total number of temperature anomaly zones. A second anomaly value was determined based on the first and second crack characteristics regarding the severity of air ingress into the coal gangue pile. The spontaneous combustion anomaly value inside the coal gangue pile is determined based on the first anomaly value and the second anomaly value.

[0016] In another possible implementation, when the analysis module determines the first anomaly value regarding the temperature performance at the top of the coal gangue pile based on the first severity score of each temperature anomaly region and the total number of temperature anomaly regions, it is specifically used for: Determine the sum of the first severity scores for all areas of temperature anomaly; The first anomaly value for the temperature performance at the top of the coal gangue pile is based on the sum of the first severity scores and the number of all temperature anomaly areas.

[0017] In another possible implementation, when the analysis module determines a second anomaly regarding the severity of air intrusion into the coal gangue pile based on the first and second crack features, it is specifically used for: The length and area of ​​each first crack feature are determined, and a second severity score for each first crack feature is determined based on the length and area; Determine the number of all first crack features at the bottom of the coal gangue pile and the total length of all first crack features; Calculate the ratio of the total length of all the first crack features to a preset length, where the preset length is the total length of the bottom edge of the coal gangue pile; An anomaly score for a first crack feature is determined based on the second severity score of each first crack feature, the number of all first crack features, and the ratio of the total length to a preset length. Based on the anomalous scores of the first crack feature and the second crack feature, a second anomalous value is determined regarding the severity of air ingress into the coal gangue pile.

[0018] In another possible implementation, when the analysis module determines a second anomaly regarding the severity of air intrusion into the coal gangue pile based on the anomaly score of the first crack feature and the second crack feature, it is specifically used for: Determine the number of second crack features and identify the intersection nodes caused by the intersection of the second crack features; Determine the area of ​​each intersecting node and the total number of intersecting nodes; All second crack features are mapped onto a pre-defined coal gangue pile model to obtain the coordinates of the two ends of each second crack feature and the coordinates of each intersecting node. The coordinates of both ends of all the second crack features are numbered in clockwise or counterclockwise order, and lines are connected in order according to the numbers to obtain the first graphic of the area covered by all the second crack features. The outermost node is determined from the coordinates of all intersecting nodes, and the outermost node is connected sequentially to obtain a second graph of the area covered by all intersecting nodes. Determine the area of ​​the first shape and the area of ​​the second shape; An anomaly score for the second crack feature is determined based on the number of the second crack feature, the area of ​​each intersecting node, the total number of intersecting nodes, the area of ​​the first shape, and the area of ​​the second shape. Based on the anomalous scores for the first crack feature and the anomalous scores for the second crack feature, a second anomalous value is determined regarding the severity of air ingress into the coal gangue pile.

[0019] In another possible implementation, the coal gangue pile anomaly alarm system further includes: The mapping module is used to map all temperature anomaly areas and the highest temperature value corresponding to each of the temperature anomaly areas to the preset coal gangue pile model, so as to obtain the mapped preset coal gangue pile model. The output module is used to output and display the mapped preset coal gangue pile model.

[0020] In another possible implementation, the alarm module, when triggering an alarm, is specifically used for: The system sends the spontaneous combustion anomaly value to the terminal devices of relevant personnel and controls the host computer, buzzer, and indicator lights to activate the alarm.

[0021] Thirdly, this application provides an electronic device that adopts the following technical solution: An electronic device comprising: At least one processor; Memory; At least one application, wherein the application is stored in memory and configured to be executed by at least one processor, the at least one configuration being for: executing a coal gangue pile anomaly alarm method according to any possible implementation of the first aspect.

[0022] Fourthly, this application provides a computer-readable storage medium, which adopts the following technical solution: A computer-readable storage medium, when the computer program is executed in a computer, causes the computer to perform the method for alarming abnormalities in a coal gangue pile as described in any of the first aspects.

[0023] In summary, this application includes at least one of the following beneficial technical effects: Infrared images of the junction of the top and bottom of the coal gangue pile are obtained to determine the temperature at the top. When spontaneous combustion occurs, heat will rise and eventually escape from the top to the outside, causing the temperature at the junction of the top and bottom to rise. Obtaining first and second color images facilitates subsequent identification of cracks at the bottom and surface of the pile. Air enters the pile through these cracks due to the chimney effect, further intensifying spontaneous combustion. The presence of abnormal temperature areas in the infrared images indicates the presence of spontaneous combustion. Crack feature identification is performed on the first and second color images to identify the first crack at the bottom of the pile. The characteristics of the cracks and the second cracks on the slope of the pile body indicate that air will enter the pile body through these cracks under the chimney effect, thus aggravating spontaneous combustion. In summary, the temperature anomaly area, the first crack characteristics, and the second crack characteristics are all key factors affecting the degree of spontaneous combustion inside the pile body under the chimney effect. Therefore, by comprehensively analyzing the temperature anomaly area at the top of the pile body and the cracks at the bottom and on the slope, an accurate spontaneous combustion anomaly value caused by the chimney effect can be obtained. A preset anomaly value threshold is used as the dividing point for excessively high spontaneous combustion anomaly values. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, an alarm will be triggered, thereby indicating that the degree of spontaneous combustion inside the pile body is severe. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating an abnormal alarm method for a coal gangue pile according to an embodiment of this application.

[0025] Figure 2 This is an example diagram of the second crack feature, intersecting nodes, first graphic and second graphic on the slope of the pile body in this application embodiment.

[0026] Figure 3 This is a schematic diagram of the structure of an abnormal alarm system for a coal gangue pile according to an embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] After reading this specification, those skilled in the art may make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0032] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0033] This application provides a method for alarming abnormalities in coal gangue piles, executed by an electronic device. This electronic device can be a server or a terminal device. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. The terminal device can be a smartphone, tablet, laptop, desktop computer, etc., but is not limited to these. The terminal device and the server can be directly or indirectly connected via wired or wireless communication. This application does not impose any limitations on this. Figure 1 As shown, the method includes steps S101, S102, S103, S104, and S105, wherein, S101, acquire an infrared image of the junction between the top of the coal gangue pile and the mountain, a first color image of the bottom of the coal gangue pile, and a second color image of the slope of the coal gangue pile.

[0034] In this embodiment, the infrared image can be obtained by a worker operating a drone equipped with an infrared thermometer camera to fly to the junction of the coal gangue pile and the mountain. The drone is wirelessly connected to electronic equipment, enabling the electronic equipment to acquire the infrared image of the junction of the pile and the mountain. The drone can also be equipped with a regular color camera to capture a first color image of the bottom of the pile and a second color image of the slope surface of the pile. The first color image is the infrared image of the junction between the pile and the mountain or ground, that is, the color image of the interface between the pile and other media. Gaps are prone to form at the junction between the top of the pile and the mountain, extending into the interior of the pile. This allows heat to escape from the junction at the top during spontaneous combustion, causing a temperature change at the junction.

[0035] S102, determine whether there are abnormal temperature areas in the infrared image.

[0036] In this embodiment, the temperature anomaly region is the area where the temperature reaches a preset temperature threshold. This preset temperature threshold can be set and stored in the electronic device by the operator, for example, a preset temperature threshold of 70°C. The electronic device compares the temperature at various locations in the infrared image with the preset temperature threshold. If the preset temperature threshold is reached, it indicates that the temperature is too high, i.e., a temperature anomaly region exists. The electronic device segments the areas in the infrared image that reach the preset temperature threshold to obtain the temperature anomaly region. Since different color depths in the infrared image represent different temperatures, the temperature anomaly region can also be segmented based on the color values ​​in the infrared image.

[0037] S103, if there is a temperature anomaly area, crack feature identification is performed on the first color image and the second color image to obtain the first crack feature at the bottom of the coal gangue pile and the second crack feature on the slope of the coal gangue pile.

[0038] In this embodiment, if the electronic device detects an abnormal temperature area, it indicates that spontaneous combustion has occurred internally. Therefore, the electronic device can input the first color image and the second color image into a trained network model for crack feature recognition, obtaining the first crack feature at the bottom contact surface of the pile and the second crack feature on the slope of the pile. The network model can be a convolutional neural network model, a recurrent neural network model, or other types of network models. Outside air can enter the pile from the first and second crack features under the chimney effect, aiding combustion and increasing the spontaneous combustion potential. In other embodiments, the electronic device can also denoise the first and second color images, perform grayscale transformation on the denoised images to obtain their corresponding grayscale images, and perform edge detection or contour detection on the grayscale images to obtain the positions where grayscale values ​​change, thereby determining the first crack feature or the second crack feature.

[0039] S104. Based on the temperature anomaly region, the characteristics of the first crack and the characteristics of the second crack, the abnormal value of spontaneous combustion inside the coal gangue pile was analyzed, and the abnormal value of spontaneous combustion inside the coal gangue pile was obtained.

[0040] In summary, for the embodiments of this application, the temperature anomaly region, the first crack feature, and the second crack feature are all key factors related to the degree of spontaneous combustion inside the reactor body affected by the chimney effect. Therefore, by comprehensively analyzing the temperature anomaly region, the first crack feature, and the second crack feature, the electronic device can obtain a more accurate spontaneous combustion anomaly value that characterizes the degree of spontaneous combustion inside the reactor body. Characterizing the spontaneous combustion situation inside the reactor body through the spontaneous combustion anomaly value is more intuitive and vivid.

[0041] S105, if the spontaneous combustion abnormal value reaches the preset abnormal value threshold, an alarm will be triggered.

[0042] In this embodiment of the application, a preset outlier threshold is used as the dividing point for excessively high spontaneous combustion outliers. After the electronic device determines the spontaneous combustion outlier of the pile, it compares the spontaneous combustion outlier with the preset outlier threshold. If the preset outlier threshold is reached, it indicates that the degree of spontaneous combustion inside the pile is relatively severe and the chimney effect has a significant impact. The electronic device will then issue an alarm, thereby alerting relevant personnel to the severe degree of spontaneous combustion inside the pile, which will facilitate subsequent processing.

[0043] One possible implementation of this application embodiment involves step S104, which analyzes the abnormal values ​​of spontaneous combustion inside the coal gangue pile based on the temperature anomaly region, the characteristics of the first crack, and the characteristics of the second crack, to obtain the abnormal values ​​of spontaneous combustion inside the coal gangue pile. Specifically, this includes steps S1041, S1042, S1043, S1044, and S1045. S1041, determine the area and maximum temperature of each temperature anomaly region.

[0044] In this embodiment, the electronic device determines the highest temperature value from the infrared image. The highest temperature value represents the extreme temperature within each temperature anomaly region, indicating the degree of anomaly in each region. The higher the highest temperature value, the greater the severity and the higher the degree of spontaneous combustion within the corresponding location. The electronic device can count the pixels of each temperature anomaly region to obtain its area, or map each temperature anomaly region onto a grid map and determine its area based on the number and area of ​​the grid cells it occupies. A larger area of ​​a temperature anomaly region indicates a greater amount of accumulated heat within the pile, which diffuses to the mountain junction at the temperature anomaly region. The higher the severity of the temperature anomaly region, the higher the degree of spontaneous combustion within the pile.

[0045] S1042, determine the first severity score for each temperature anomaly region based on the area and the highest temperature value of each temperature anomaly region.

[0046] In summary, the area and maximum temperature of the temperature anomaly region are key factors affecting the severity of each anomaly. Therefore, staff can assign corresponding weights to the area and temperature of the temperature anomaly region and store them in the electronic device. The electronic device normalizes the area and maximum temperature of the temperature anomaly region using a preset normalization calculation formula to eliminate the influence of dimensions. Then, the electronic device calls the corresponding weights to perform a weighted calculation on the normalized data to obtain the first severity score for each temperature anomaly region.

[0047] S1043, determine the total number of temperature anomaly zones, and determine the first anomaly value for the temperature performance at the top of the coal gangue pile based on the first severity score of each temperature anomaly zone and the total number of temperature anomaly zones.

[0048] In this embodiment of the application, the electronic device counts all temperature anomaly regions in the infrared image to obtain the total number of temperature anomaly regions. The greater the number, the more severe the spontaneous combustion situation inside the pile body. The first severity score of each temperature anomaly region and the number of temperature anomaly regions are key factors characterizing the top temperature performance from the perspective of heat dissipation at the junction of the mountain and the pile body. Therefore, by comprehensively analyzing the first severity score of each temperature anomaly region and the number of temperature anomaly regions, the electronic device can accurately determine the first anomaly value of the temperature performance at the top of the pile body.

[0049] S1044, a second anomaly is determined based on the characteristics of the first and second cracks, regarding the severity of air ingress into the coal gangue pile.

[0050] In the embodiments of this application, due to the chimney effect, spontaneous combustion inside the reactor core causes the air inside the core to expand upon heating, decreasing in density and becoming lighter than the surrounding cold air. This causes it to rise, forming a low-pressure zone. Since the outside air is denser, it enters the core through the first crack at the bottom of the core and the second crack on the slope, further fueling the spontaneous combustion reaction. Therefore, by comprehensively analyzing the first crack at the bottom of the core and the second crack on the slope, the electronic equipment can accurately determine the second anomaly value regarding the degree of air entering the core.

[0051] S1045, determine the spontaneous combustion anomaly value inside the coal gangue pile based on the first anomaly value and the second anomaly value.

[0052] In summary, for the embodiments of this application, the first outlier and the second outlier are both key factors characterizing the degree of spontaneous combustion inside the reactor due to the chimney effect. Therefore, the electronic device can accurately determine the spontaneous combustion anomaly value inside the reactor by comprehensively analyzing the first outlier and the second outlier.

[0053] One possible implementation of this application embodiment involves determining a first anomaly value regarding the temperature performance at the top of the coal gangue pile in step S1042 based on the first severity score of each temperature anomaly region and the total number of temperature anomaly regions. This specifically includes steps one and two, wherein... Step 1: Determine the sum of the first severity scores for all temperature anomaly areas.

[0054] Step 2: Based on the sum of the first severity scores and the number of all temperature anomaly areas, determine the first anomaly value for the temperature performance at the top of the coal gangue pile.

[0055] In this embodiment, the electronic device sums the severity scores of all temperature anomaly regions to obtain a total severity score. A larger total score indicates a worse temperature performance at the top of the reactor, a higher degree of anomaly, and more severe spontaneous combustion. Both the severity score and the number of temperature anomaly regions are key factors affecting the temperature performance at the top of the reactor. Therefore, the operator assigns corresponding weights to the total severity score and the number of temperature anomaly regions and stores them in the electronic device. The electronic device normalizes the total severity score and the number of all temperature anomaly regions using a preset normalization formula, thereby eliminating the influence of dimensions and reducing the difference between different orders of magnitude. The electronic device then uses its corresponding weights to perform a weighted calculation on the normalized data to obtain the first anomaly value. Determining the first anomaly value using the total severity score and the number of temperature anomaly regions is more accurate.

[0056] One possible implementation of this application embodiment involves determining a second anomaly value regarding the severity of air intrusion into the coal gangue pile in step S1044 based on the first crack characteristics and the second crack characteristics. This specifically includes steps Sa (not shown in the figure), Sb (not shown in the figure), Sc (not shown in the figure), Sd (not shown in the figure), and Se (not shown in the figure). Sa, determine the length and area of ​​each first crack feature, and determine a second severity score for each first crack feature based on the length and area.

[0057] In this embodiment, after the electronic device identifies the first crack feature on the interface at the bottom of the stack, it fits each first crack feature into a straight line and determines the length of each first crack feature by counting the number of pixels on the line. Alternatively, the length of each first crack feature can be calculated using a preset scale and its position in the first color image. A longer length indicates that the first crack feature can allow more air to enter, resulting in a more severe impact on spontaneous combustion within the stack. The electronic device determines the outline of each first crack feature and counts the number of pixels within the outline to obtain the area of ​​each first crack feature. Similarly, a larger area indicates that the first crack feature can allow more air to enter, resulting in a more severe impact on spontaneous combustion within the stack. The length and area of ​​each first crack feature are key factors affecting the severity of spontaneous combustion. Therefore, the electronic device can accurately determine the second severity score of each first crack feature based on its length and area. The electronic device also normalizes the length and area, and the operator sets the weights corresponding to each length and area. The electronic device then uses these weights to perform a weighted calculation on the normalized length and area values ​​to obtain the second severity score of each first crack feature.

[0058] Sb determines the number of all first crack features at the bottom of the coal gangue pile and the total length of all first crack features.

[0059] In this embodiment, after identifying the first crack feature at the bottom of the reactor core, the electronic device counts all the first crack features. The more first crack features there are, the more air enters the reactor core, and the greater the impact on spontaneous combustion within the reactor core. The electronic device sums the lengths of each first crack feature to obtain the total length. The greater the total length, the more air enters the reactor core, and the greater the impact on spontaneous combustion within the reactor core.

[0060] Sc, calculates the ratio of the total length of all first crack features to the preset length.

[0061] The preset length is the total length of the bottom edge of the coal gangue pile.

[0062] In the embodiments of this application, the preset length can be determined in advance by the staff. The electronic equipment divides the total length of all first crack features by the preset length to obtain the proportion. The larger the proportion, the more serious the crack situation at the bottom of the pile body is, and the greater the impact on spontaneous combustion inside the pile body.

[0063] Sd determines the anomaly score for the first crack feature based on the second severity score of each first crack feature, the number of all first crack features, and the ratio of the total length to the preset length.

[0064] In summary, for the embodiments of this application, the second severity score of each first crack feature, the number of first crack features, and the ratio of the total length to the preset length are all key factors affecting the severity of the first crack features at the bottom of the reactor body. The electronic device can sum the second severity scores of each first crack feature to obtain a total score. The operator sets weights for each of these three factors: the total score, the number of first crack features, and the ratio of the total length to the preset length. The electronic device normalizes these three factors to obtain their respective normalized values. The electronic device then uses the corresponding weights to perform a weighted calculation on the normalized values ​​to obtain the anomaly score for the first crack feature at the bottom of the reactor body.

[0065] Se, based on the anomalous scores of the first crack feature and the second crack feature, determines a second anomalous value regarding the severity of air ingress into the coal gangue pile.

[0066] In the embodiments of this application, after the electronic device determines the anomalous score of the first crack feature at the bottom of the stack, it combines the second crack feature of the stack slope for analysis, and thus obtains a more accurate second anomalous value characterizing the degree of air entering the interior of the stack.

[0067] One possible implementation of this application embodiment involves determining a second anomaly value regarding the severity of air intrusion into the coal gangue pile in step S1044 based on the anomaly score of the first crack feature and the second crack feature. Specifically, this includes steps S1 (not shown in the figure), S2 (not shown in the figure), S3 (not shown in the figure), S4 (not shown in the figure), S5 (not shown in the figure), S6 (not shown in the figure), S7 (not shown in the figure), and S8 (not shown in the figure). S1, determine the number of second crack features and identify the intersection nodes caused by the intersection of the second crack features.

[0068] In this embodiment, the electronic device counts the second crack features on the slope of the pile body. The more second crack features there are, the easier it is for air to enter the pile body and intensify the spontaneous combustion reaction. The electronic device performs cross-identification on all the second crack features to obtain the intersection nodes caused by the intersection. The pile body at the intersection node is more loose, which further indicates that it is easier for air to enter at the intersection node and intensify the spontaneous combustion reaction.

[0069] S2 determines the area of ​​each intersecting node and the total number of intersecting nodes.

[0070] In this embodiment, the electronic device counts the pixels at intersecting nodes to obtain the area of ​​each intersecting node. The larger the area of ​​the intersecting node, the more and easier it is for air to enter the pile body, thus exacerbating internal spontaneous combustion. The electronic device counts all intersecting nodes to obtain the total number of intersecting nodes. The more intersecting nodes there are, the looser the pile body is, the more internal voids there are, and the easier it is for more air to enter, exacerbating the internal spontaneous combustion reaction.

[0071] S3, map all the second crack features onto the preset coal gangue pile model to obtain the coordinates of the two ends of each second crack feature and the coordinates of each intersecting node.

[0072] In this embodiment, the pre-defined coal gangue pile model can be obtained and stored in the electronic device through surveying, remote sensing, point cloud data collection by UAVs, etc. This pre-defined coal gangue pile model can be a local model of the slope. The electronic device maps the slope model to a pre-defined rectangular coordinate system, and then maps each second crack feature to its corresponding position in the slope model. The electronic device can then determine the coordinates of both ends of each second crack feature and the coordinates of each intersecting node. The electronic device can determine the center of each intersecting node and use the center coordinates to represent the position of each intersecting node.

[0073] S4. The coordinates of both ends of all the second crack features are numbered in clockwise or counterclockwise order, and the lines are connected in order according to the numbers to obtain the first graphic of the area covered by all the second crack features.

[0074] In this embodiment of the application, the electronic device can first determine the coordinates of any endpoint of any second crack feature, and then number the encountered endpoint coordinates sequentially clockwise or counterclockwise from this endpoint coordinate. Finally, by connecting the numbers sequentially, a first graphic of the entire area covered by the second crack feature can be obtained. (Refer to...) Figure 2 , Figure 2 The solid-line rectangle located in the preset rectangular coordinate system represents the slope model. The solid-line segments within the solid-line rectangle represent the simplified (without width) second crack feature. Figure 2 The second crack feature on the slope (approximately a line segment in the middle) and the irregular polygon formed by the outer dashed lines are the first figure.

[0075] S5. Determine the outermost node from the coordinates of all intersecting nodes and connect the outermost nodes sequentially to obtain the second graph of the area covered by all intersecting nodes.

[0076] In this embodiment of the application, the electronic device uses a convex hull algorithm, such as the Graham scan method, to determine the outermost node for the coordinates of all intersecting nodes. Then, it sequentially connects the outermost nodes to obtain a second graph of the area covered by all intersecting nodes. (Refer to...) Figure 2 , Figure 2 The circles at the intersections of solid line segments within the solid line rectangle represent intersecting nodes. The closed shape within the outer dashed line, composed of denser dashed lines, is the second shape.

[0077] S6, determine the area of ​​the first figure and the area of ​​the second figure.

[0078] In this embodiment of the application, the electronic device determines the area of ​​the first shape and the area of ​​the second shape from a preset Cartesian coordinate system. The larger the area of ​​the first shape, the greater the extension range of all the second crack features, and the more positions on the slope can allow outside air to enter the interior of the pile. The larger the area of ​​the second shape, the more positions that exacerbate the air entering the interior of the pile, and the more severe the situation of air entering the interior of the pile.

[0079] S7. Determine the anomaly score for the second crack feature based on the number of second crack features, the area of ​​each intersecting node, the total number of intersecting nodes, the area of ​​the first figure, and the area of ​​the second figure.

[0080] In summary, for the embodiments of this application, the number of second crack features, the area of ​​each intersecting node, the total number of intersecting nodes, the area of ​​the first graphic, and the area of ​​the second graphic are all key factors affecting the degree to which air enters the second crack features on the slope. The electronic device sums the areas of all intersecting nodes to obtain a total area. The operator assigns corresponding weights to the total area, the number of second crack features, the total number of intersecting nodes, the area of ​​the first graphic, and the area of ​​the second graphic. The electronic device normalizes the total area, the number of second crack features, the total number of intersecting nodes, the area of ​​the first graphic, and the area of ​​the second graphic to obtain their respective normalized values. The electronic device then uses the corresponding weights to perform a weighted calculation on the normalized values ​​to obtain an anomaly score for the second crack features. Determining the anomaly score for the second crack features on the slope of the pile body by comprehensively considering factors such as the number of second crack features is more accurate.

[0081] S8, based on the anomalous scores for the first crack feature and the anomalous scores for the second crack feature, determine a second anomalous value regarding the severity of air ingress into the coal gangue pile.

[0082] In this embodiment, the staff pre-sets the anomaly scores of the first crack feature and the weights of the anomaly scores of the second crack feature and stores them in the electronic device. The electronic device normalizes these two anomaly scores, and then uses their respective weights to perform a weighted calculation on the normalized values ​​to obtain a second anomaly value regarding the severity of air entering the reactor core. Determining the second anomaly value by combining the anomaly scores of the first crack feature and the second crack feature is more accurate.

[0083] One possible implementation of this application embodiment includes steps S106 (not shown in the figure) and S107 (not shown in the figure) after step S1041, wherein... S106, map all temperature anomaly areas and their respective highest temperature values ​​to the preset coal gangue pile model to obtain the mapped preset coal gangue pile model.

[0084] S107, Output displays the pre-mapped coal gangue pile model.

[0085] In this embodiment of the application, the pre-designed coal gangue pile model can be drawn in advance by staff using methods such as drone surveying and remote sensing and stored in the electronic device. The electronic device maps the outline of each temperature anomaly area to the corresponding position in the pre-designed coal gangue pile model, and then maps the highest temperature value of each temperature anomaly area to the corresponding position to obtain the mapped pre-designed coal gangue pile model. Then, the electronic device controls the display screen and other display devices to display the mapped pre-designed coal gangue pile model, thereby facilitating staff to promptly understand the specific situation and distribution of the temperature anomaly area at the junction of the pile top and the mountain.

[0086] One possible implementation of this application embodiment involves an alarm being triggered in step S105, specifically including step S1051 (not shown in the figure), wherein... S1051 sends a spontaneous combustion anomaly value to the terminal equipment of relevant personnel and controls the host computer, buzzer, and indicator lights to run an alarm.

[0087] In this embodiment, the electronic device and the terminal device of relevant personnel are wirelessly connected. The terminal device can be a personal device such as a mobile phone, tablet, or laptop. The electronic device sends spontaneous combustion anomaly values ​​to the terminal device of relevant personnel, enabling them to promptly understand the degree of spontaneous combustion caused by the chimney effect inside the reactor core. The host computer can be set up in a monitoring center or other location with staff on duty. The electronic device, host computer, buzzer, and indicator lights are connected via wires. The electronic device can output alarm signals to the host computer, indicating that the spontaneous combustion intensity inside the reactor core is too high. The host computer then issues an alarm, allowing staff at the host computer to promptly understand the excessive spontaneous combustion intensity inside the reactor core. Controlling the buzzer and indicator lights further alerts the staff on duty, improving the alarm effect.

[0088] The above embodiments describe a method for alarming abnormalities in coal gangue piles from the perspective of process flow. The following embodiments describe a coal gangue pile abnormality alarm system 20 from the perspective of virtual modules or virtual units. For details, please refer to the following embodiments.

[0089] This application provides an abnormal alarm system 20 for coal gangue piles, such as... Figure 3 As shown, a coal gangue pile abnormality alarm system 20 may specifically include: Image acquisition module 201 is used to acquire infrared images of the junction between the top of the coal gangue pile and the mountain, a first color image of the bottom of the coal gangue pile, and a second color image of the slope of the coal gangue pile. The judgment module 202 is used to determine whether there is an abnormal temperature region in the infrared image; The feature recognition module 203 is used to perform crack feature recognition on the first color image and the second color image when there is a temperature anomaly area, so as to obtain the first crack feature at the bottom of the coal gangue pile and the second crack feature on the slope of the coal gangue pile. Analysis module 204 is used to perform anomaly analysis of spontaneous combustion inside the coal gangue pile based on temperature anomaly area, first crack characteristics and second crack characteristics, and to obtain spontaneous combustion anomaly values ​​inside the coal gangue pile. The alarm module 205 is used to trigger an alarm when the spontaneous combustion abnormality value reaches the preset abnormality value threshold.

[0090] This application discloses an abnormal alarm system 20 for a coal gangue pile. The image acquisition module 201 acquires an infrared image of the junction of the top and bottom of the coal gangue pile to determine the temperature at the top. When spontaneous combustion occurs, heat will rise and eventually escape from the top to the outside, causing the temperature at the junction of the top and bottom to rise. The image acquisition module 201 acquires a first color image and a second color image to facilitate subsequent identification of cracks at the bottom and surface of the pile. Air will enter the pile through these cracks due to the chimney effect, further intensifying spontaneous combustion. The judgment module 202 determines whether there is a temperature anomaly area in the infrared image. If a temperature anomaly area exists, it indicates that spontaneous combustion is occurring inside. The feature recognition module 203 analyzes the first color image and... The second color image is used to identify crack features, which yields the first crack feature at the bottom of the pile and the second crack feature on the slope of the pile. Air will enter the pile through these cracks under the effect of the chimney effect, thus aggravating spontaneous combustion. In summary, the temperature anomaly area, the first crack feature, and the second crack feature are all key factors affecting the degree of spontaneous combustion inside the pile under the chimney effect. Therefore, the analysis module 204 can obtain an accurate spontaneous combustion anomaly value of the degree of spontaneous combustion inside the pile caused by the chimney effect by comprehensively analyzing the temperature anomaly area at the top of the pile and the cracks at the bottom and slope of the pile. The preset anomaly value threshold is used as the dividing point for excessively high spontaneous combustion anomaly values. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, the alarm module 205 will sound an alarm, thereby indicating that the degree of spontaneous combustion inside the pile is severe.

[0091] In one possible implementation of this application embodiment, when the analysis module 204 performs anomaly value analysis on the spontaneous combustion inside the coal gangue pile based on the temperature anomaly region, the characteristics of the first crack, and the characteristics of the second crack, and obtains the spontaneous combustion anomaly value inside the coal gangue pile, it is specifically used for: Determine the area and maximum temperature value of each temperature anomaly region; The first severity score for each temperature anomaly region is determined based on its area and the highest temperature value. The number of all temperature anomaly zones was determined, and a first anomaly value for the temperature performance at the top of the coal gangue pile was determined based on the first severity score of each temperature anomaly zone and the total number of temperature anomaly zones. A second anomaly was determined based on the characteristics of the first and second cracks, regarding the severity of air ingress into the coal gangue pile. The spontaneous combustion anomaly value inside the coal gangue pile is determined based on the first and second anomalies.

[0092] In one possible implementation of this application embodiment, when the analysis module 204 determines the first anomaly value regarding the temperature performance at the top of the coal gangue pile based on the first severity score of each temperature anomaly region and the total number of temperature anomaly regions, it is specifically used for: Determine the sum of the first severity scores for all areas of temperature anomaly; The first anomaly value for the temperature performance at the top of the coal gangue pile is based on the sum of the first severity scores and the number of all temperature anomaly areas.

[0093] In one possible implementation of this application embodiment, when the analysis module 204 determines a second anomaly value regarding the severity of air intrusion into the coal gangue pile based on the first crack characteristics and the second crack characteristics, it is specifically used for: The length and area of ​​each first crack feature are determined, and a second severity score for each first crack feature is determined based on the length and area; Determine the number of all first-degree crack features at the bottom of the coal gangue pile and the total length of all first-degree crack features; Calculate the ratio of the total length of all first crack features to the preset length, where the preset length is the total length of the bottom edge of the coal gangue pile; An anomaly score for a first crack feature is determined based on the second severity score of each first crack feature, the number of all first crack features, and the ratio of the total length to the preset length. A second anomaly was determined based on the anomaly score of the first crack feature and the second crack feature, regarding the severity of air ingress into the coal gangue pile.

[0094] In one possible implementation of this application embodiment, when the analysis module 204 determines a second anomaly value regarding the severity of air intrusion into the coal gangue pile based on the anomaly score of the first crack feature and the second crack feature, it is specifically used for: Determine the number of second crack features and identify the intersection nodes caused by the intersection of the second crack features; Determine the area of ​​each intersecting node and the total number of intersecting nodes; All second crack features are mapped onto a pre-defined coal gangue pile model to obtain the coordinates of the two ends of each second crack feature and the coordinates of each intersecting node. The coordinates of both ends of all the second crack features are numbered in clockwise or counterclockwise order, and lines are connected in order according to the numbers to obtain the first graphic of the area covered by all the second crack features. The outermost node is determined from the coordinates of all intersecting nodes, and the outermost node is connected sequentially to obtain a second graph of the area covered by all intersecting nodes. Determine the area of ​​the first figure and the area of ​​the second figure; The anomaly score for the second crack feature is determined based on the number of second crack features, the area of ​​each intersecting node, the total number of intersecting nodes, the area of ​​the first figure, and the area of ​​the second figure. A second anomaly was determined based on the anomaly scores for the first crack feature and the second crack feature, regarding the severity of air ingress into the coal gangue pile.

[0095] One possible implementation of this application embodiment, a coal gangue pile abnormality alarm system 20 further includes: The mapping module is used to map all temperature anomaly areas and the highest temperature value corresponding to each of the temperature anomaly areas to the preset coal gangue pile model, so as to obtain the mapped preset coal gangue pile model. The output module is used to output and display the pre-mapped coal gangue pile model.

[0096] In one possible implementation of this application embodiment, when the alarm module 205 triggers an alarm, it is specifically used for: Send spontaneous combustion anomaly values ​​to the terminal devices of relevant personnel and control the host computer, buzzer, and indicator lights to trigger an alarm.

[0097] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the coal gangue pile abnormality alarm system 20 described above can be referred to the corresponding process in the aforementioned method embodiments, and will not be repeated here.

[0098] This application provides an electronic device, such as... Figure 4 As shown, Figure 4 The illustrated electronic device 30 includes a processor 301 and a memory 303. The processor 301 and the memory 303 are connected, for example, via a bus 302. Optionally, the electronic device 30 may also include a transceiver 304. It should be noted that in practical applications, the transceiver 304 is not limited to one type, and the structure of this electronic device 30 does not constitute a limitation on the embodiments of this application.

[0099] Processor 301 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 301 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0100] Bus 302 may include a pathway for transmitting information between the aforementioned components. Bus 302 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 302 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The symbol is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0101] The memory 303 may be a ROM (Read Only Memory) or other type of static storage device capable of storing static information and instructions, RAM (Random Access Memory) or other type of dynamic storage device capable of storing information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0102] The memory 303 is used to store application code that executes the solution of this application, and its execution is controlled by the processor 301. The processor 301 is used to execute the application code stored in the memory 303 to implement the content shown in the foregoing method embodiments.

[0103] Electronic devices include, but are not limited to: mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and in-vehicle terminals (such as in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Servers can also be included. Figure 4 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0104] This application provides a computer-readable storage medium storing a computer program, which, when run on a computer, enables the computer to execute the corresponding content in the aforementioned method embodiments. Compared with related technologies, in this application embodiment, obtaining an infrared image of the junction of the top and bottom of a coal gangue pile facilitates the determination of the temperature at the top. When spontaneous combustion occurs internally, heat will dissipate upwards and eventually be released to the outside from the top, leading to an increase in temperature at the junction of the top and bottom. Obtaining a first color image and a second color image facilitates subsequent identification of cracks at the bottom and surface of the pile. Air will enter the pile through the cracks under the chimney effect, further intensifying spontaneous combustion. The presence of abnormal temperature areas in the infrared image indicates the presence of spontaneous combustion. Crack feature identification is performed on the first and second color images to obtain... The first crack feature at the bottom of the reactor body and the second crack feature on the slope of the reactor body indicate that air will enter the reactor body through these cracks under the chimney effect, thus aggravating spontaneous combustion. In summary, the temperature anomaly region, the first crack feature, and the second crack feature are all key factors affecting the degree of spontaneous combustion inside the reactor body under the chimney effect. Therefore, by comprehensively analyzing the temperature anomaly region at the top of the reactor body and the cracks at the bottom and slope of the reactor body, an accurate spontaneous combustion anomaly value caused by the chimney effect can be obtained. A preset anomaly value threshold is used as the dividing point for excessively high spontaneous combustion anomaly values. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, an alarm will be triggered, thereby indicating that the degree of spontaneous combustion inside the reactor body is severe.

[0105] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0106] The above are only some embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for alarming abnormalities in a coal gangue pile, characterized in that, include: Acquire infrared images of the junction between the top of the coal gangue pile and the mountain, a first color image of the bottom of the coal gangue pile, and a second color image of the slope of the coal gangue pile; Determine whether there are any abnormal temperature regions in the infrared image; If there is an area of ​​abnormal temperature, crack feature identification is performed on the first color image and the second color image to obtain the first crack feature at the bottom of the coal gangue pile and the second crack feature on the slope of the coal gangue pile. Based on the temperature anomaly region, the characteristics of the first crack and the characteristics of the second crack, anomaly values ​​of spontaneous combustion inside the coal gangue pile were analyzed to obtain the spontaneous combustion anomaly values ​​inside the coal gangue pile. If the spontaneous combustion anomaly value reaches the preset anomaly value threshold, an alarm will be triggered.

2. The method for alarming abnormalities in a coal gangue pile according to claim 1, characterized in that, The analysis of anomalous values ​​for spontaneous combustion within the coal gangue pile, based on the temperature anomaly region, the characteristics of the first crack, and the characteristics of the second crack, yields the anomalous values ​​for spontaneous combustion within the coal gangue pile, including: Determine the area and maximum temperature value of each temperature anomaly region; The first severity score for each temperature anomaly region is determined based on its area and the highest temperature value. The number of all temperature anomaly zones was determined, and a first anomaly value for the temperature performance at the top of the coal gangue pile was determined based on the first severity score of each temperature anomaly zone and the total number of temperature anomaly zones. A second anomaly value was determined based on the first and second crack characteristics regarding the severity of air ingress into the coal gangue pile. The spontaneous combustion anomaly value inside the coal gangue pile is determined based on the first anomaly value and the second anomaly value.

3. The method for alarming abnormalities in a coal gangue pile according to claim 2, characterized in that, The determination of the first anomaly value regarding the temperature performance at the top of the coal gangue pile, based on the first severity score of each temperature anomaly region and the total number of temperature anomaly regions, includes: Determine the sum of the first severity scores for all areas of temperature anomaly; The first anomaly value for the temperature performance at the top of the coal gangue pile is based on the sum of the first severity scores and the number of all temperature anomaly areas.

4. The method for alarming abnormalities in a coal gangue pile according to claim 2, characterized in that, The determination of the second anomaly value regarding the severity of air intrusion into the coal gangue pile based on the first and second crack features includes: The length and area of ​​each first crack feature are determined, and a second severity score for each first crack feature is determined based on the length and area; Determine the number of all first crack features at the bottom of the coal gangue pile and the total length of all first crack features; Calculate the ratio of the total length of all the first crack features to a preset length, where the preset length is the total length of the bottom edge of the coal gangue pile; An anomaly score for a first crack feature is determined based on the second severity score of each first crack feature, the number of all first crack features, and the ratio of the total length to a preset length. Based on the anomalous scores of the first crack feature and the second crack feature, a second anomalous value is determined regarding the severity of air ingress into the coal gangue pile.

5. The method for alarming abnormalities in a coal gangue pile according to claim 4, characterized in that, The determination of the second anomaly value regarding the severity of air intrusion into the coal gangue pile based on the anomaly score of the first crack feature and the second crack feature includes: Determine the number of second crack features and identify the intersection nodes caused by the intersection of the second crack features; Determine the area of ​​each intersecting node and the total number of intersecting nodes; All second crack features are mapped onto a pre-defined coal gangue pile model to obtain the coordinates of the two ends of each second crack feature and the coordinates of each intersecting node. The coordinates of both ends of all the second crack features are numbered in clockwise or counterclockwise order, and lines are connected in order according to the numbers to obtain the first graphic of the area covered by all the second crack features. The outermost node is determined from the coordinates of all intersecting nodes, and the outermost node is connected sequentially to obtain a second graph of the area covered by all intersecting nodes. Determine the area of ​​the first shape and the area of ​​the second shape; An anomaly score for the second crack feature is determined based on the number of the second crack feature, the area of ​​each intersecting node, the total number of intersecting nodes, the area of ​​the first shape, and the area of ​​the second shape. Based on the anomalous scores for the first crack feature and the anomalous scores for the second crack feature, a second anomalous value is determined regarding the severity of air ingress into the coal gangue pile.

6. The method for alarming abnormalities in a coal gangue pile according to claim 2, characterized in that, The method further includes: All temperature anomaly regions and their respective highest temperature values ​​are mapped onto a preset coal gangue pile model to obtain the mapped preset coal gangue pile model. The output displays the pre-mapped coal gangue pile model.

7. The method for alarming abnormalities in a coal gangue pile according to claim 1, characterized in that, The alarm activation includes: The system sends the spontaneous combustion anomaly value to the terminal devices of relevant personnel and controls the host computer, buzzer, and indicator lights to activate the alarm.

8. An alarm system for abnormal coal gangue piles, characterized in that, include: The image acquisition module is used to acquire infrared images of the junction between the top of the coal gangue pile and the mountain, a first color image of the bottom of the coal gangue pile, and a second color image of the slope of the coal gangue pile. The judgment module is used to determine whether there are abnormal temperature areas in the infrared image; The feature recognition module is used to identify crack features in the first color image and the second color image when there is a temperature anomaly area, so as to obtain the first crack feature at the bottom of the coal gangue pile and the second crack feature on the slope of the coal gangue pile. The analysis module is used to perform anomaly analysis of spontaneous combustion inside the coal gangue pile based on the temperature anomaly area, the characteristics of the first crack and the characteristics of the second crack, and to obtain the spontaneous combustion anomaly value inside the coal gangue pile. An alarm module is used to trigger an alarm when the spontaneous combustion anomaly value reaches a preset anomaly value threshold.

9. The coal gangue pile abnormality alarm system according to claim 8, characterized in that, The analysis module, when performing anomaly analysis on the spontaneous combustion within the coal gangue pile based on the temperature anomaly region, the characteristics of the first crack, and the characteristics of the second crack, and obtaining the spontaneous combustion anomaly value within the coal gangue pile, is specifically used for: Determine the area and maximum temperature value of each temperature anomaly region; The first severity score for each temperature anomaly region is determined based on its area and the highest temperature value. The number of all temperature anomaly zones was determined, and a first anomaly value for the temperature performance at the top of the coal gangue pile was determined based on the first severity score of each temperature anomaly zone and the total number of temperature anomaly zones. A second anomaly value was determined based on the first and second crack characteristics regarding the severity of air ingress into the coal gangue pile. The spontaneous combustion anomaly value inside the coal gangue pile is determined based on the first anomaly value and the second anomaly value.

10. The coal gangue pile abnormality alarm system according to claim 9, characterized in that, When determining the first anomaly value regarding the temperature performance at the top of the coal gangue pile based on the first severity score of each temperature anomaly region and the total number of temperature anomaly regions, the analysis module is specifically used for: Determine the sum of the first severity scores for all areas of temperature anomaly; The first anomaly value for the temperature performance at the top of the coal gangue pile is based on the sum of the first severity scores and the number of all temperature anomaly areas.

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