Method for automatically extracting slope deformation accumulation area based on open pit coal mine

Abstract

The invention discloses a method for automatically extracting a slope deformation accumulation area based on an open pit coal mine, and relates to the technical field of automatic extraction of coal mine deformation, and the method comprises the steps of slope recognition and analysis, fusion area screening and determination, fusion area state prediction and result display. And monitoring each slope area corresponding to the open-pit coal mine, determining each deformation gathering area corresponding to the open-pit coal mine, performing feature extraction on the deformation gathering area corresponding to the open-pit coal mine, screening to obtain the deformation gathering area corresponding to the open-pit coal mine, and predicting the state of the deformation gathering area corresponding to the open-pit coal mine. According to the method, high-precision monitoring of the slope deformation accumulation area corresponding to the open-pit coal mine is achieved through the foundation InSAR technology, so that the geological state of the slope deformation accumulation area corresponding to the open-pit coal mine is known efficiently, efficient geological risk prevention is achieved, and the risk occurrence probability and the brought danger are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automatic extraction of coal mine deformation, and in particular to a method for automatically extracting deformation concentration areas based on slopes of open-pit coal mines. Background Art

[0002] With the continuous advancement of sensor technology, the monitoring of slope deformation concentration areas corresponding to open-pit coal mines has become more convenient, so as to achieve more effective protection of the mining area corresponding to the open-pit coal mine and reduce the geological risks of coal mines. At the same time, based on the accuracy of the resolution of ground-based InSAR technology, it is possible to accurately collect and identify the deformation concentration areas corresponding to open-pit coal mines, effectively prevent the dangers caused by deformation of open-pit coal mine slopes, carry out timely prevention of coal mine slope deformation, reduce the probability of danger in mining areas, meet the all-round high-temporal and spatial precise extraction and identification of coal mining areas, and realize efficient deformation monitoring.

[0003] Prior art, such as the invention patent application with announcement number CN114185048B, discloses a method, system and storage medium for extracting landslide displacement vectors using ground-based InSAR, wherein the method comprises the following steps: firstly, extracting the slope direction and slope of the target position in the landslide scene based on digital elevation information; then, based on the ground-based InSAR of the single-view image, measuring the line of sight (LOS) direction displacement of the radar to the target position; finally, projecting the line of sight (LOS) direction displacement obtained in step S2 onto the maximum slope direction determined by the slope direction and slope in step S1, thereby obtaining the landslide displacement vector. The method, system and storage medium provided by the present invention can estimate the actual landslide size and direction by combining the LOS direction displacement with the three-dimensional terrain.

[0004] In response to the above scheme, the applicant of the present invention found that the above technical problems exist in at least the following technical problems: the above invention mainly estimates the actual landslide size and direction based on the LOS direction displacement combined with the three-dimensional terrain, and does not monitor and identify the deformation concentration area corresponding to the slope of the coal mining area. Therefore, it is impossible to accurately extract the deformation concentration area corresponding to the open-pit coal mine, and it is impossible to predict and analyze the status of the deformation concentration area corresponding to the current open-pit coal mine. It is impossible to timely understand the current status of the deformation concentration area corresponding to the open-pit coal mine, and it is impossible to timely prevent the geological risks of the deformation concentration area, which increases the occurrence and loss of geological risks in the deformation concentration area, and cannot ensure the safe application and basic safety of the open-pit coal mine. Summary of the invention

[0005] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a method for automatically extracting deformation concentration areas based on open-pit coal mine slopes.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a method for automatically extracting deformation cluster areas of open-pit coal mine slopes, including: Step 1, slope identification and analysis: performing corresponding data collection on the open-pit coal mine, and then identifying the corresponding slope areas of the open-pit coal mine.

[0007] Step 2: Screening and determination of fusion zones: monitor the slope areas corresponding to the open-pit coal mine, calculate the foundation values ​​of the slope areas corresponding to the open-pit coal mine, and determine the deformation aggregation areas corresponding to the open-pit coal mine.

[0008] Step 3: Prediction of the state of the fusion zone: Extract features of the deformation aggregation area corresponding to the open-pit coal mine, and then screen out the deformation aggregation area corresponding to the open-pit coal mine, collect information on the deformation aggregation area corresponding to the open-pit coal mine, and predict the state of the deformation aggregation area corresponding to the open-pit coal mine.

[0009] Step 4: Result display: Display the status of the corresponding deformation concentration area of ​​the open-pit coal mine.

[0010] 1. Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a method for automatically extracting deformation clustering areas of open-pit coal mine slopes, by identifying the slope areas corresponding to the open-pit coal mine, and then performing monitoring on the slope areas corresponding to the open-pit coal mine, determining the deformation clustering areas corresponding to the open-pit coal mine, and performing feature extraction on the deformation clustering areas corresponding to the open-pit coal mine, screening the deformation clustering areas corresponding to the open-pit coal mine, predicting the state of the deformation clustering areas corresponding to the open-pit coal mine, and realizing the use of foundation I nSAR technology can monitor the deformation concentration area of ​​the slope corresponding to the open-pit coal mine with high precision, so as to effectively understand the geological status of the deformation concentration area of ​​the slope corresponding to the open-pit coal mine, thereby realizing efficient geological risk prevention, reducing the probability of risk occurrence and the danger brought, and solving the shortcomings of the current technology. At the same time, the ground-based InSAR technology has the advantages of high temporal and spatial resolution, which can realize the minute-level changes in the deformation area of ​​the open-pit coal mine monitoring, so as to predict more accurate The state results of the deformation concentration area of ​​the open-pit coal mine slope corresponding to the state of the deformation concentration area, realize more comprehensive protection of the safety of the mining area corresponding to the open-pit coal mine, ensure the safe operation of the mine, and to a certain extent improve the convenience and efficiency of monitoring the deformation concentration area of ​​the slope corresponding to the open-pit coal mine, reduce the cost of manual monitoring, and ensure the safety of the open-pit coal mine in a comprehensive and efficient manner.

[0011] 2. In the prediction of the state of the fusion zone, the present invention performs in-depth feature extraction on the deformation concentration area corresponding to the open-pit coal mine, and then screens out the deformation concentration area corresponding to the open-pit coal mine, and predicts the state of the deformation concentration area corresponding to the open-pit coal mine, so as to realize comprehensive monitoring and analysis of the deformation concentration area corresponding to the open-pit coal mine slope, thereby better ensuring the corresponding application safety of the open-pit coal mine, and realizing a detailed analysis of the deformation of the open-pit coal mine slope, so as to obtain accurate state prediction results, thereby performing efficient prevention of geological risks of open-pit coal mine slope deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 The present invention is a schematic flow chart of the steps for implementing the method. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1 As shown, a method for automatically extracting deformation clustering areas of open-pit coal mine slopes includes step one, slope identification and analysis: performing corresponding data collection on the open-pit coal mine, and then identifying the corresponding slope areas of the open-pit coal mine.

[0016] It should be noted that the measurement technology includes but is not limited to lidar technology and optical measurement technology.

[0017] As an optional implementation method, the corresponding data collection is performed on the open-pit coal mine, and the specific collection process is as follows: use measurement technology to perform all-round collection on the open-pit coal mine, and then obtain point cloud data corresponding to each collection surface of the open-pit coal mine, and establish a model for the point cloud data corresponding to each collection surface of the open-pit coal mine. By using three-dimensional model technology to establish a three-dimensional model corresponding to the open-pit coal mine, and extract three-dimensional data corresponding to each collection surface from the three-dimensional model, wherein the three-dimensional data includes inclination angle, depth and convexity, so as to complete the corresponding data collection for the open-pit coal mine.

[0018] As an optional implementation manner, the identification obtains the various slope areas corresponding to the open-pit coal mine, and the specific identification process is as follows: the inclination angle of each collection surface corresponding to the open-pit coal mine is compared with the slope reference inclination angle interval stored in the database, and the depth and convexity of each collection surface corresponding to the open-pit coal mine is also compared with the slope reference depth interval and slope reference convexity interval stored in the database. If the inclination angle of a collection surface corresponding to the open-pit coal mine is within the slope reference inclination angle interval stored in the database, and the depth and convexity of the collection surface corresponding to the open-pit coal mine are within the slope reference depth interval and slope reference convexity interval stored in the database, then the collection surface is determined to be the slope area of ​​the open-pit coal mine. By analogy with this comparison, the various slope areas corresponding to the open-pit coal mine are identified.

[0019] It should be noted that, based on the slope values ​​of the current existing data, the slope reference inclination angle interval, the slope reference depth interval and the slope reference concavity interval are obtained.

[0020] Step 2: Screening and determination of fusion zones: monitor the slope areas corresponding to the open-pit coal mine, calculate the foundation values ​​of the slope areas corresponding to the open-pit coal mine, and determine the deformation aggregation areas corresponding to the open-pit coal mine.

[0021] It should be noted that the deformation threshold interval is [-150, 150], which is set by professional and technical personnel in coal mines to obtain the deformation results of each slope area of ​​the open-pit coal mine corresponding to each historical deformation monitoring data. When the result corresponding to a certain historical deformation monitoring data is that the coal mine slope has deformed, the value corresponding to the data is recorded as the deformation reference value, so as to obtain various reference values, and sort the reference values ​​in order from large to small, and set the minimum and maximum values ​​corresponding to the reference values ​​as the deformation threshold interval.

[0022] It should be noted that ground-based radar technology is ground-based InSAR technology.

[0023] As an optional implementation manner, the monitoring of each slope area corresponding to the open-pit coal mine, the specific monitoring process is as follows: using ground-based radar technology to monitor each slope area corresponding to the open-pit coal mine, and then monitoring to obtain ground-based images of each slope area corresponding to the open-pit coal mine, and extracting radar data from the ground-based images corresponding to each slope area, wherein the radar data includes longitude, latitude and deformation values, and performing data processing on the extracted radar data, by cleaning and removing the data with missing longitude or latitude coordinates in the radar data, so as to obtain standardized radar data, thereby completing the monitoring of each slope area corresponding to the open-pit coal mine.

[0024] As an optional implementation, the calculation obtains the foundation value of each slope area corresponding to the open-pit coal mine, and the specific calculation process is as follows: by the calculation formula:

[0025] Calculate the foundation value β of the i-th slope area corresponding to the open-pit coal mine i , where i is the number of each slope area, i = 1, 2, ..., x, i is any integer greater than 2, is the set reference longitude, μ′ is the set reference latitude, is the set reference deformation value, is the longitude of the i-th slope area corresponding to the open-pit coal mine, μ i is the latitude of the i-th slope area corresponding to the open-pit coal mine, is the deformation value of the i-th slope area corresponding to the open-pit coal mine, s1, s2 and s3 are the weight factors of the set longitude, latitude and deformation value respectively, 0<s1<1, 0<s2<1, 0<s3<1.

[0026] It should be noted that the historical collection longitudes of each slope area corresponding to the open-pit coal mine are obtained from the database, the average value is calculated, and then the historical average longitudes are obtained, and each historical average longitude is used as the reference longitude, the historical collection latitudes of each slope area corresponding to the open-pit coal mine are obtained from the database, the average value is calculated, and then the historical average latitudes are obtained, and each historical average latitude is used as the reference latitude, the historical deformation values ​​of each slope area corresponding to the open-pit coal mine are obtained from the database, the average value is calculated, and then the historical average deformation values ​​are obtained, and each historical average deformation value is used as the reference deformation value.

[0027] It should also be noted that the weight factor of longitude, the weight factor of latitude and the weight factor of deformation value are obtained through factor analysis. The information of longitude, latitude and deformation value is condensed first, and then the corresponding variance explanation rate is obtained, and then divided by the variance explanation rate to get the corresponding weight.

[0028] It is important to note again that information condensation refers to condensing multiple analysis items into several key summary indicators, and the variance explanation rate refers to the contribution of each principal component or factor to the overall variance, usually expressed as a percentage, indicating how much information the factor contains about the original data.

[0029] As an optional implementation manner, the deformation concentration areas corresponding to the open-pit coal mine are determined by the following specific determination process: the measured values ​​of each slope area corresponding to the open-pit coal mine are compared with the preset slope deformation threshold interval. If the measured value of a slope area corresponding to the open-pit coal mine is not within the preset slope deformation threshold interval, it is determined that the slope area has not been deformed and does not belong to the deformation concentration area. If the measured value of a slope area corresponding to the open-pit coal mine is within the preset slope deformation threshold interval, it is determined that the slope area has a tendency to deform. By comparing and analogizing, the deformation concentration areas corresponding to the open-pit coal mine are determined.

[0030] Step 3: Prediction of the state of the fusion zone: Extract features of the deformation aggregation area corresponding to the open-pit coal mine, and then screen out the deformation aggregation area corresponding to the open-pit coal mine, collect information on the deformation aggregation area corresponding to the open-pit coal mine, and predict the state of the deformation aggregation area corresponding to the open-pit coal mine.

[0031] As an optional implementation, the feature extraction of the deformation concentration area corresponding to the open-pit coal mine is performed. The specific extraction process is as follows: the radar is extracted from the ground-based image as p0, the plane of the slope is determined by points A, B and C, p1 is a point on the slope plane, and the radial displacement is Then calculate Coordinates in the Earth coordinate system and the inclined plane coordinate system.

[0032] By setting p0 = (x0, y0, z0), p1 = (x1, y1, z1), A = (x A ,y A ,z A ), B=(x B ,y B ,z B ), C=(x C ,y C ,z C ).

[0033] The equation for the inclined plane ABC is set to ax+by+cz+d=0.

[0034] a=(y B -y A )(z C -z A )-(y c -y A )(z B -y A ),

[0035] b=(z B -z A )(x C -x A )-(x C -x A )(x B -c A ),

[0036] c=(x B -x A )(y C -y A )-(x c -x A )(y B -y A ),

[0037] Thus, the system is constructed on the inclined plane:

[0038]

[0039] in is in the upward direction along the slope, is the horizontal direction on the slope, is the normal direction.

[0040] because and Same direction, easy to know:

[0041]

[0042] Calculated Coordinates in the Earth's coordinate system.

[0043] in is a set of standard orthogonal systems, so The coordinate decomposition in the inclined plane system is:

[0044] where · represents the standard inner product of the vector, and then we can calculate The coordinates in the inclined plane system are In summary In the coordinates of the earth coordinate system, the measured values ​​corresponding to the radial deformation in the ground-based image are extracted and calculated, and the feature extraction of the deformation concentration area corresponding to the open-pit coal mine is completed.

[0045] As an optional implementation method, the screening obtains the deformation clustering area corresponding to the open-pit coal mine, and the specific screening process is as follows: the measured values ​​of each deformation clustering area corresponding to the open-pit coal mine are compared with the reference characteristic value interval corresponding to the preset deformation clustering area. If the measured value of a certain deformation clustering area corresponding to the open-pit coal mine is not within the reference characteristic value interval corresponding to the preset deformation clustering area, then the deformation clustering area corresponding to the open-pit coal mine has not developed into a deformation clustering area. If the measured value of a certain deformation clustering area corresponding to the open-pit coal mine is within the reference characteristic value interval corresponding to the preset deformation clustering area, then the deformation clustering area corresponding to the open-pit coal mine is recorded as the deformation clustering area, and so on to obtain the deformation clustering area corresponding to the open-pit coal mine.

[0046] It should be noted that the reference characteristic value range is set by professional and technical personnel in coal mines.

[0047] As an optional implementation method, the state of the deformation concentration area corresponding to the open-pit coal mine is predicted, and the specific prediction process is as follows: using ground-based radar technology to perform monitoring of the deformation concentration area corresponding to the open-pit coal mine in each time period, and then collecting deformation images of the deformation concentration area corresponding to the open-pit coal mine in each time period, and extracting the deformation data of the deformation concentration area corresponding to the open-pit coal mine from the deformation image, and performing normalization processing on the extracted deformation data, wherein the deformation data includes phase difference, dynamic deformation rate, deformation direction and uplift.

[0048] Select the corresponding prediction model, import the deformation data of each time period of the deformation concentration area corresponding to the open-pit coal mine into the prediction model, and calculate the deformation trend assessment coefficient of the deformation concentration area corresponding to the open-pit coal mine. If the output result of the deformation trend assessment coefficient prediction result of the deformation concentration area corresponding to the open-pit coal mine is 1, it is judged that the state of the deformation concentration area corresponding to the open-pit coal mine is dangerous, and corresponding manual intervention prevention is required. If the output result of the deformation trend assessment coefficient prediction result of the deformation concentration area corresponding to the open-pit coal mine is 0, it is judged that the state of the deformation concentration area corresponding to the open-pit coal mine is safe, and the ground-based radar technology continues to monitor the deformation concentration area corresponding to the open-pit coal mine, so as to predict the state of the deformation concentration area corresponding to the open-pit coal mine.

[0049] As an optional implementation, the deformation trend assessment coefficient of the open-pit coal mine corresponding to the deformation concentration area is obtained by calculation. The specific calculation process is as follows: by the calculation formula:

[0050] The deformation trend assessment coefficient δ of the deformation concentration area corresponding to the open-pit coal mine is calculated, where y is the number of each time period, y = 1, 2, ..., b, b is any integer greater than 2, θ y is the phase difference of the yth time period in the open-pit coal mine corresponding to the deformation concentration area, F y is the dynamic deformation rate of the open-pit coal mine corresponding to the deformation concentration area in the yth time period, G y is the deformation direction of the open-pit coal mine corresponding to the deformation concentration area in the yth time period, Z y is the deformation direction of the deformation concentration area of ​​the open-pit coal mine in the yth time period, a1, a2, a3 and a4 are the weight factors of the set phase difference, dynamic deformation rate, deformation direction and uplift, respectively, 0<a1<1, 0<a2<1, 0<a3<1, 0<a4<1, ψ is the reference deformation assessment coefficient.

[0051] It should be noted that the corresponding prediction model is selected: based on the deformation data of the deformation cluster area corresponding to the open-pit coal mine, the demand deformation judgment characteristics of the deformation cluster area corresponding to the open-pit coal mine are extracted, and the extracted demand deformation judgment characteristics of the deformation cluster area corresponding to the open-pit coal mine are compared with the feature sets corresponding to each prediction model. If the demand deformation judgment characteristics of the deformation cluster area corresponding to the open-pit coal mine are within the feature set corresponding to a certain prediction model, the prediction model is used as the prediction model for predicting the state of the deformation cluster area corresponding to the open-pit coal mine.

[0052] It should be noted that the deformation direction refers to vertical or horizontal. The historical deformation assessment coefficients of the corresponding deformation concentration areas of the open-pit coal mine are obtained from the database, and each historical deformation assessment coefficient is substituted into the average value calculation formula to obtain the average deformation assessment coefficient, and the average deformation assessment coefficient is used as the reference deformation assessment coefficient.

[0053] It should also be noted that the weight factors of phase difference, dynamic deformation rate, deformation direction and uplift are obtained through factor analysis. The information of phase difference, dynamic deformation rate, deformation direction and uplift is condensed first, and then the corresponding variance explanation rate is obtained, and then divided by the variance explanation rate to get the corresponding weight.

[0054] In the prediction of the state of the fusion zone, the present invention performs in-depth feature extraction on the deformation concentration area corresponding to the open-pit coal mine, and then screens out the deformation concentration area corresponding to the open-pit coal mine, and predicts the state of the corresponding deformation concentration area of ​​the open-pit coal mine, so as to realize comprehensive monitoring and analysis of the deformation concentration area corresponding to the open-pit coal mine slope, thereby better ensuring the corresponding application safety of the open-pit coal mine, and realizing a detailed analysis of the deformation of the open-pit coal mine slope, so as to obtain accurate state prediction results, thereby performing efficient prevention of geological risks of open-pit coal mine slope deformation.

[0055] Step 4: Result display: Display the status of the corresponding deformation concentration area of ​​the open-pit coal mine.

[0056] In the embodiment of the present invention, by identifying each slope area corresponding to the open-pit coal mine, and then performing monitoring on each slope area corresponding to the open-pit coal mine, each deformation concentration area corresponding to the open-pit coal mine is determined, and features are extracted for the deformation concentration area corresponding to the open-pit coal mine, and the deformation concentration area corresponding to the open-pit coal mine is screened and obtained, and the state of the deformation concentration area corresponding to the open-pit coal mine is predicted, so as to realize high-precision monitoring of the deformation concentration area corresponding to the slope of the open-pit coal mine by using the ground-based InSAR technology, so as to efficiently understand the geological state of the deformation concentration area corresponding to the slope of the open-pit coal mine, thereby realizing efficient geological risk prevention, reducing the probability of risk occurrence and the danger brought, and solving the shortcomings in the current technology. At the same time, the ground-based InSAR technology has the advantages of high temporal and spatial resolution, and can realize minute-level changes in the deformation area of ​​the open-pit coal mine monitoring, so as to predict more accurate state results of the deformation concentration area corresponding to the slope of the open-pit coal mine, and realize more comprehensive protection of the mine area safety corresponding to the open-pit coal mine, and ensure the safe operation of the mine, and to a certain extent improve the convenience and efficiency of monitoring the deformation concentration area corresponding to the slope of the open-pit coal mine, reduce the cost of manual monitoring, and ensure the safety of the open-pit coal mine in a comprehensive and efficient manner.

[0057] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A method for automatically extracting deformation concentration areas of open-pit coal mine slopes, characterized in that: include: Step 1: Slope identification and analysis: perform corresponding data collection on the open-pit coal mine, and then identify the corresponding slope areas of the open-pit coal mine; Step 2: Screening and determining the fusion zone: monitor the slope areas corresponding to the open-pit coal mine, calculate the foundation values ​​of the slope areas corresponding to the open-pit coal mine, and determine the deformation aggregation areas corresponding to the open-pit coal mine; Step 3: Prediction of the state of the fusion zone: Extract features of the deformation aggregation area corresponding to the open-pit coal mine, and then screen the deformation aggregation area corresponding to the open-pit coal mine, collect information on the deformation aggregation area corresponding to the open-pit coal mine, and predict the state of the deformation aggregation area corresponding to the open-pit coal mine; Step 4: Result display: Display the status of the corresponding deformation concentration area of ​​the open-pit coal mine.

2. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The corresponding data collection is performed on the open-pit coal mine, and the specific collection process is as follows: The measurement technology is used to perform all-round collection of the open-pit coal mine, and the point cloud data of each collection surface corresponding to the open-pit coal mine is obtained. The point cloud data of each collection surface corresponding to the open-pit coal mine is used to establish a model. The three-dimensional model corresponding to the open-pit coal mine is established by using the three-dimensional model technology, and the three-dimensional data corresponding to each collection surface is extracted from the three-dimensional model. The three-dimensional data includes the inclination angle, depth and convexity, so as to complete the corresponding data collection of the open-pit coal mine.

3. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The identification obtains the slope areas corresponding to the open-pit coal mine, and the specific identification process is as follows: The inclination angle of each collection surface corresponding to the open-pit coal mine is compared with the slope reference inclination angle range stored in the database. At the same time, the depth and concavity of each collection surface corresponding to the open-pit coal mine are also compared with the slope reference depth range and slope reference concavity range stored in the database. If the inclination angle of a collection surface corresponding to the open-pit coal mine is within the slope reference inclination angle range stored in the database, and the depth and concavity of the collection surface corresponding to the open-pit coal mine are within the slope reference depth range and slope reference concavity range stored in the database, then the collection surface is determined to be the slope area of ​​the open-pit coal mine. By analogy with this comparison, the slope areas corresponding to the open-pit coal mine are identified.

4. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The specific monitoring process of the slope area monitoring corresponding to the open-pit coal mine is as follows: Ground-based radar technology is used to monitor the slope areas corresponding to the open-pit coal mine, and then the ground-based images of the slope areas corresponding to the open-pit coal mine are obtained. Radar data is extracted from the ground-based images corresponding to the slope areas, where the radar data includes longitude, latitude and deformation values. The extracted radar data is processed, and the data with missing longitude or latitude coordinates in the radar data is cleaned and removed to obtain standardized radar data, thereby completing the monitoring of the slope areas corresponding to the open-pit coal mine.

5. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The calculation obtains the foundation values ​​of each slope area corresponding to the open-pit coal mine. The specific calculation process is as follows: By calculation formula: Calculate the foundation value β of the i-th slope area corresponding to the open-pit coal mine i , where i is the number of each slope area, i = 1, 2, ..., x, i is any integer greater than 2, is the set reference longitude, μ′ is the set reference latitude, is the set reference deformation value, is the longitude of the i-th slope area corresponding to the open-pit coal mine, μ i is the latitude of the i-th slope area corresponding to the open-pit coal mine, is the deformation value of the i-th slope area corresponding to the open-pit coal mine, s1, s2 and s3 are the weight factors of the set longitude, latitude and deformation value respectively, 0<s1<1, 0<s2<1, 0<s3<1.

6. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The specific process of determining the deformation concentration areas corresponding to the open-pit coal mine is as follows: The measured values ​​of each slope area corresponding to the open-pit coal mine are compared with the preset slope deformation threshold interval. If the measured value of a slope area corresponding to the open-pit coal mine is not within the preset slope deformation threshold interval, it is determined that the slope area has not been deformed and does not belong to the deformation concentration area. If the measured value of a slope area corresponding to the open-pit coal mine is within the preset slope deformation threshold interval, it is determined that the slope area has a tendency to deform. By analogy, the deformation concentration areas corresponding to the open-pit coal mine are determined.

7. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The feature extraction of the deformation cluster area corresponding to the open-pit coal mine is performed, and the specific extraction process is as follows: The radar extracted from the ground-based image is p0, the plane of the slope is determined by points A, B and C, p1 is a point on the slope plane, and the radial displacement is Then calculate Coordinates in the Earth coordinate system and the inclined plane coordinate system; By setting p0 = (x0, y0, z0), p1 = (x1, y1, z1), A = (x A ,y A ,z A ), B=(x B ,y B ,z B ), C=(x C ,y C ,z C ). Determine the equation of the inclined plane ABC and set it to ax+by+cz+d=0. a=(and B -and A )(z C -z A )-(and c -and A )(z B -and A ); b=(z B -z A )(x C -x A )-(x C -x A )(x B -c A ); c=(x B -x A )(and C -and A )-(x c -x A )(and B -and A ); Thus, the system is constructed on the inclined plane: in is in the upward direction along the slope, is the horizontal direction on the slope, is the normal direction. because and Same direction, easy to know: Calculated Coordinates in the Earth's coordinate system. in is a set of standard orthogonal systems, so The coordinate decomposition in the inclined plane system is: where · represents the standard inner product of the vector, and then we can calculate The coordinates in the inclined plane system are In summary In the coordinates of the earth coordinate system, the measured values ​​corresponding to the radial deformation in the ground-based image are extracted and calculated, and the feature extraction of the deformation concentration area corresponding to the open-pit coal mine is completed.

8. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 7, characterized in that: The screening process is as follows: The measured values ​​of each deformation concentration area corresponding to the open-pit coal mine are compared with the reference characteristic value interval corresponding to the preset deformation concentration area. If the measured value of a deformation concentration area corresponding to the open-pit coal mine is not within the reference characteristic value interval corresponding to the preset deformation concentration area, then the deformation concentration area corresponding to the open-pit coal mine has not developed into a deformation concentration area. If the measured value of a deformation concentration area corresponding to the open-pit coal mine is within the reference characteristic value interval corresponding to the preset deformation concentration area, then the deformation concentration area corresponding to the open-pit coal mine is recorded as a deformation concentration area, and so on. The deformation concentration area corresponding to the open-pit coal mine is obtained.

9. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 1, characterized in that: The state of the deformation concentration zone corresponding to the open-pit coal mine is predicted, and the specific prediction process is as follows: The ground-based radar technology is used to monitor the deformation concentration area corresponding to the open-pit coal mine in each time period, and then the deformation images of the deformation concentration area corresponding to the open-pit coal mine in each time period are collected, and the deformation data of the deformation concentration area corresponding to the open-pit coal mine is extracted from the deformation image, and the extracted deformation data is normalized, wherein the deformation data includes phase difference, dynamic deformation rate, deformation direction and uplift degree; Select the corresponding prediction model, import the deformation data of each time period of the deformation concentration area corresponding to the open-pit coal mine into the prediction model, and calculate the deformation trend assessment coefficient of the deformation concentration area corresponding to the open-pit coal mine. If the output result of the deformation trend assessment coefficient prediction result of the deformation concentration area corresponding to the open-pit coal mine is 1, it is judged that the state of the deformation concentration area corresponding to the open-pit coal mine is dangerous, and corresponding manual intervention prevention is required. If the output result of the deformation trend assessment coefficient prediction result of the deformation concentration area corresponding to the open-pit coal mine is 0, it is judged that the state of the deformation concentration area corresponding to the open-pit coal mine is safe, and the ground-based radar technology continues to monitor the deformation concentration area corresponding to the open-pit coal mine, so as to predict the state of the deformation concentration area corresponding to the open-pit coal mine.

10. The method for automatically extracting deformation concentration areas of open-pit coal mine slopes according to claim 9, characterized in that: The calculation obtains the deformation trend assessment coefficient of the open-pit coal mine corresponding to the deformation concentration area. The specific calculation process is as follows: By calculation formula: The deformation trend assessment coefficient δ of the deformation concentration area corresponding to the open-pit coal mine is calculated, where y is the number of each time period, y = 1, 2, ..., b, b is any integer greater than 2, θ y is the phase difference of the deformation concentration area in the open-pit coal mine in the yth time period, F y is the dynamic deformation rate of the open-pit coal mine corresponding to the deformation concentration area in the yth time period, G y is the deformation direction of the open-pit coal mine corresponding to the deformation concentration area in the yth time period, Z y is the deformation direction of the deformation concentration area of ​​the open-pit coal mine in the yth time period, a1, a2, a3 and a4 are the weight factors of the set phase difference, dynamic deformation rate, deformation direction and uplift, respectively, 0<a1<1, 0<a2<1, 0<a3<1, 0<a4<1, ψ is the reference deformation assessment coefficient.

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