Surface mine slope deformation monitoring method based on Beidou high-precision positioning technology

Abstract

The invention relates to the technical field of Beidou positioning, in particular to a surface mine slope deformation monitoring method based on a Beidou high-precision positioning technology, which comprises the following steps: acquiring surface mine structure parameters, constructing a surface mine three-dimensional model based on the surface mine structure parameters, and identifying high-risk point locations on the surface of a surface mine; the recognized surface high-risk point location of the surface mine is obtained, and a base station is deployed at the surface high-risk point location of the surface mine; according to the method, the three-dimensional model of the surface mine is constructed in a manner of acquiring the structural parameters of the surface mine, so that a point position is selected on the three-dimensional model of the surface mine to deploy a base station to interact with a Beidou satellite, and the slope deformation path of the surface mine is further acquired; and finally, the risk generated by surface mine slope deformation is analyzed according to the change of the surface mine slope deformation path, a real-time risk judgment effect is brought to the surface mine slope, and safety maintenance is provided for surface mine operation.

Description

Technical Field

[0001] The present invention relates to the field of Beidou positioning technology, and in particular to an open-pit mine slope deformation monitoring method based on Beidou high-precision positioning technology. Background Art

[0002] Slope deformation monitoring in open-pit mines is extremely important. Real-time monitoring of slopes using advanced technology can promptly detect potential deformation risks. Accurate data provides a basis for mine safety management, ensures the safety of personnel and equipment, optimizes mining plans, helps mines develop sustainably, and reduces the possibility of disasters.

[0003] The invention patent with application number 201911110164.9 discloses a large-scale open-pit mine slope landslide disaster early warning method based on fuzzy comprehensive evaluation method, characterized in that the method comprises the following steps: (1) arranging multi-probe microseismic monitoring instruments, digital photogrammetric instruments and distributed fiber optic anchor cable monitoring instruments on the slope of the large open-pit mine to be warned, and monitoring the microseismic, displacement, deformation and stress signals of various levels of slopes and key structural surfaces of the mine; (2) transmitting the multiple signals in step (1) to the signal aggregation and processing station, aggregating and preprocessing the signals, and eliminating useless signals; (3) transmitting the preprocessed multiple signals to the multi-functional signal converter through the signal path, generating optical signals and transmitting them to the intelligent computer through the optical fiber channel.

[0004] The application aims to solve the following problems: "(1) During open-pit mining, the huge amount of monitoring data leads to extremely complex early warning criteria; (2) Traditional methods make unreasonable use of monitoring data, resulting in a low accuracy rate of early warning indicators; (3) Ignoring the impact of blasting dynamic loads leads to a low slope safety factor; (4) Too many early warning indicators make it difficult for staff to choose; (5) Not considering the coordination of early warning criteria for landslide disasters at different levels of slopes in mines, resulting in the phenomenon of neglecting one thing while focusing on another in the process of slope prevention and control; (6) Using cables to transmit monitoring signals has weak anti-interference ability, large signal attenuation, poor transmission quality, heavy weight that is not convenient for laying and transportation, and excessive use of non-ferrous metal copper, which is expensive."

[0005] However, the existing open-pit coal mine slope deformation monitoring technology is difficult to monitor slope deformation globally, in real time and accurately;

[0006] To this end, we proposed a method for open-pit mine slope deformation monitoring based on Beidou high-precision positioning technology. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an open-pit mine slope deformation monitoring method based on Beidou high-precision positioning technology, which solves the technical problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology, comprising:

[0010] Obtain the structural parameters of the open-pit mine, build a three-dimensional model of the open-pit mine based on the structural parameters of the open-pit mine, and identify high-risk points on the surface of the open-pit mine; obtain the identified high-risk points on the surface of the open-pit mine, and deploy reference stations at the high-risk points of the open-pit mine; obtain the deployment location information of the reference station based on the reference station to construct the deformation path of the open-pit mine slope, create a cloud database, store the deformation path of the open-pit mine slope based on the cloud database, and perform open-pit mine slope risk analysis when there are no less than three groups of stored open-pit mine slope deformation paths; obtain the open-pit mine slope risk analysis results, and determine whether there are safety issues with the open-pit mine slope based on the analysis results; output the determination results of whether there are safety issues with the open-pit mine slope; record the output determination results of whether there are safety issues with the open-pit mine slope, generate a monitoring log based on the recorded determination results, and store it in the cloud database.

[0011] Furthermore, the open-pit mine structural parameters are obtained by a drone equipped with a ranging device flying over the open-pit mine to obtain the position coordinates of each point on the surface of the open-pit mine, and the position coordinates of each point on the surface of each open-pit mine are connected to each other to construct a model surface representing the surface of the open-pit mine, and further based on the splicing of each group of model surfaces, a three-dimensional model of the open-pit mine is obtained;

[0012] Among them, before the drone equipped with ranging equipment traverses the air above the open-pit mine, the user terminal manually edits no less than four sets of position coordinates, so that the edited position coordinates are interconnected to determine the flight area of ​​the drone, and further configures an axis network on the flight area of ​​the drone, so that the intersection points of the axis lines of the axis network are all used as the ranging positions when the drone equipped with ranging equipment traverses the air above the open-pit mine. When the drone equipped with ranging equipment performs a ranging operation, the drone's own position is recorded as (x, y), and the applied ranging result is recorded as z. When the drone equipped with ranging equipment performs a ranging operation, the position coordinates of the surface point of the open-pit mine obtained are marked as (x, y, z).

[0013] Furthermore, in the stage of identifying high-risk points on the surface of the open-pit mine, vertices are captured on the three-dimensional model of the open-pit mine, all captured vertices are used as high-risk point identification targets, and high-risk points are identified among all captured vertices. The high-risk point identification logic is expressed as:

[0014]

[0015] Where: K(a) is the risk value of vertex a; n is the set of slopes that make up vertex a in the three-dimensional model of the open-pit mine; si is the slope of the i-th group of slopes; h is the elevation of vertex a; γ is the loose coefficient of the soil layer at the surface of the open-pit mine corresponding to vertex a; m is the set of adjacent vertices of vertex a; g j is the angle between the jth adjacent vertex and the vertex a;

[0016] in, Table pair The average, Table pair Seeking the average.

[0017] Furthermore, after the risk values ​​of all vertices on the three-dimensional model of the open-pit mine are obtained, the vertices are arranged in descending order based on the risk values, and the user terminal selects the vertices based on the descending queue, and uses the selected vertices as the high-risk point identification results on the surface of the open-pit mine;

[0018] When selecting vertices, the user terminal gives priority to the front vertices in the descending queue and selects them continuously until the maximum closed area that can be formed by connecting the selected vertices is no less than three quarters of the UAV's flight area, or no less than one half of the total number of vertices on the three-dimensional model of the open-pit mine.

[0019] Furthermore, the base station includes a GNSS receiver and an antenna integrated therein, the receiver receives Beidou satellite signals in real time, and measures its own position information in real time based on the Beidou satellite signals;

[0020] Among them, the system end user in the base station defines an operation cycle, and the base station runs continuously based on the operation cycle to continuously obtain its own position information.

[0021] Furthermore, when constructing the open-pit mine slope deformation path, the position information of each reference station obtained within the same operating cycle is connected adjacently to obtain a group of polylines, namely, the open-pit mine slope deformation path. The open-pit mine slope deformation path is continuously constructed based on the corresponding timing of the operating cycle, and after the construction is completed, the position information used to construct the open-pit mine slope deformation path is sourced from the operating cycle and marked on the open-pit mine slope deformation path, and then the storage operation of the open-pit mine slope deformation path is executed.

[0022] Furthermore, the open pit mine slope risk analysis logic is expressed as:

[0023]

[0024] Where: G is the risk performance value of the open-pit mine slope; L (a) , L (b) is the length of the slope deformation paths a and b in the open-pit mine; d (a) (p r,p′) is the distance from the right end point to the reference point in the open pit mine slope deformation path a; d (a) (p l ,p′) is the distance from the left end point to the reference point in the open pit mine slope deformation path a; d (b) (p r ,p′) is the distance from the right end point to the reference point in the open pit mine slope deformation path b; d (b) (p l ,p′) is the distance from the left end point to the reference point in the open-pit mine slope deformation path b; ε is the adjustment factor; u is the set of nodes on the open-pit mine slope deformation path; q (a) (p v ,p v+1 ) is the offset of the vth point relative to the v+1th point on the open pit mine slope deformation path a; q (b) (p v ,p v+1 ) is the offset of the vth point relative to the v+1th point on the open pit mine slope deformation path b;

[0025] Among them, the larger the open-pit mine slope risk performance value G is, the greater the open-pit mine slope risk is, and vice versa, the smaller the open-pit mine slope risk is.

[0026] Furthermore, the adjustment factor takes a value of 1 or -1. When the numerator of the fraction where the adjustment factor is located is less than or equal to the denominator, the adjustment factor takes a value of 1. When the numerator of the fraction where the adjustment factor is located is greater than the denominator, the adjustment factor takes a value of -1.

[0027] The reference points are any group of points on the three-dimensional model of the open-pit mine that do not fall on the deformation path of the slope of the open-pit mine.

[0028] Furthermore, when obtaining the risk performance value G of the open-pit mine slope, the target is always the latest three consecutive groups of open-pit mine slope deformation paths, and the latest three consecutive groups of open-pit mine slope deformation paths are recorded as a, b, and c, where c represents the latest group of open-pit mine slope deformation paths;

[0029] The decision logic of whether there is a safety problem on the open-pit mine slope is expressed as follows:

[0030]

[0031] Where: G a-b is the risk performance value of the open-pit mine slope obtained based on a and b; G b-c G is the risk performance value of the open-pit mine slope obtained based on b and c; 0 A risk assessment value customized for the user side;

[0032] Among them, when any of the above formulas is true, it means that there are safety problems on the slope of the open-pit mine; otherwise, it means that there are no safety problems on the slope of the open-pit mine.

[0033] Furthermore, the information contained in the monitoring log includes: historical determination results of whether there are safety problems in the open-pit mine and historically constructed deformation paths of the open-pit mine slopes.

[0034] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0035] The present invention provides an open-pit mine slope deformation monitoring method based on Beidou high-precision positioning technology. During the execution of the method, a three-dimensional model of the open-pit mine is constructed by acquiring the structural parameters of the open-pit mine, and then a reference station is deployed at points on the three-dimensional model of the open-pit mine to interact with the Beidou satellite, and the deformation path of the open-pit mine slope is further acquired. Finally, the risk caused by the deformation of the open-pit mine slope is analyzed based on the change of the deformation path of the open-pit mine slope, which brings a real-time risk judgment effect to the open-pit mine slope and provides safety maintenance for open-pit mine operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 The figure is a flow chart of an open-pit mine slope deformation monitoring method based on Beidou high-precision positioning technology. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0039] The present invention will be further described below in conjunction with the embodiments.

[0040] Embodiment 1:

[0041] The present embodiment provides a method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology. Figure 1 As shown, including:

[0042] Step 1: Obtain the structural parameters of the open-pit mine, build a three-dimensional model of the open-pit mine based on the structural parameters of the open-pit mine, and identify high-risk points on the surface of the open-pit mine;

[0043] In the stage of identifying high-risk points on the surface of open-pit mines, vertices are captured on the three-dimensional model of the open-pit mine, and all captured vertices are used as high-risk point identification targets. High-risk points are identified among all captured vertices. The high-risk point identification logic is expressed as follows:

[0044]

[0045] Where: K(a) is the risk value of vertex a; n is the set of slopes that make up vertex a in the three-dimensional model of the open-pit mine; s i is the slope of the i-th group of slopes; h is the elevation of vertex a; γ is the loose coefficient of the soil layer at the surface of the open-pit mine corresponding to vertex a; m is the set of adjacent vertices of vertex a; g j is the angle between the jth adjacent vertex and the vertex a;

[0046] in, Table pair The average, Table pair ;

[0047] After the risk values ​​of all vertices on the three-dimensional model of the open-pit mine are obtained, the vertices are arranged in descending order based on the risk value. The user end selects the vertices based on the descending queue and uses the selected vertices as the identification results of high-risk points on the surface of the open-pit mine;

[0048] When selecting vertices, the user terminal preferentially selects the front vertices in the descending queue continuously until the maximum closed area formed by the interconnected selected vertices is not less than three quarters of the UAV flight area, or not less than one half of the total number of vertices on the three-dimensional model of the open-pit mine;

[0049] Step 2: Obtain the identified high-risk points on the surface of the open-pit mine and deploy reference stations at the high-risk points of the open-pit mine;

[0050] Step 3: Obtain the base station deployment location information according to the base station to construct the open-pit mine slope deformation path, create a cloud database, store the open-pit mine slope deformation path based on the cloud database, and perform open-pit mine slope risk analysis when there are no less than three groups of stored open-pit mine slope deformation paths;

[0051] The logic of open-pit mine slope risk analysis is expressed as:

[0052]

[0053] Where: G is the risk performance value of the open-pit mine slope; L (a) , L (b) is the length of the slope deformation paths a and b in the open-pit mine; d (a) (p r ,p′) is the distance from the right end point to the reference point in the open pit mine slope deformation path a; d (a) (p l ,p′) is the distance from the left end point to the reference point in the open pit mine slope deformation path a; d (b) (p r ,p′) is the distance from the right end point to the reference point in the open pit mine slope deformation path b; d (b) (p l ,p′) is the distance from the left end point to the reference point in the open-pit mine slope deformation path b; ε is the adjustment factor; u is the set of nodes on the open-pit mine slope deformation path; q (a) (p v ,p v+1 ) is the offset of the vth point relative to the v+1th point on the open pit mine slope deformation path a; q (b) (p v ,p v+1 ) is the offset of the vth point relative to the v+1th point on the open pit mine slope deformation path b;

[0054] Among them, the larger the open-pit mine slope risk performance value G is, the greater the open-pit mine slope risk is, and vice versa, the smaller the open-pit mine slope risk is;

[0055] The adjustment factor takes the value of 1 or -1. When the numerator of the fraction where the adjustment factor is located is less than or equal to the denominator, the adjustment factor takes the value of 1. When the numerator of the fraction where the adjustment factor is located is greater than the denominator, the adjustment factor takes the value of -1.

[0056] The reference points are any set of points on the open-pit mine three-dimensional model that do not fall on the open-pit mine slope deformation path;

[0057] When obtaining the risk performance value G of the open-pit mine slope, the target is always the latest three sets of continuous deformation paths of the open-pit mine slope. The latest three sets of continuous deformation paths of the open-pit mine slope are recorded as a, b, and c, where c represents the latest set of deformation paths of the open-pit mine slope.

[0058] The decision logic of whether there is a safety problem in the open-pit mine slope is expressed as follows:

[0059]

[0060] Where: G a-b is the risk performance value of the open-pit mine slope obtained based on a and b; G b-cG is the risk performance value of the open-pit mine slope obtained based on b and c; 0 A risk assessment value customized for the user side;

[0061] Among them, when any of the above formulas is established, it means that there is a safety problem on the slope of the open-pit mine; otherwise, it means that there is no safety problem on the slope of the open-pit mine;

[0062] Step 4: Obtain the risk analysis results of the open-pit mine slope and determine whether there are safety issues on the open-pit mine slope based on the analysis results;

[0063] Step 5: Output stage of the determination result of whether there is a safety problem in the open-pit mine slope;

[0064] Step 6: Record the output of the determination result of whether there is a safety problem on the open-pit mine slope, generate a monitoring log based on the recorded determination result, and store it in the cloud database.

[0065] In this embodiment, the execution of the method in the above embodiment brings real-time, accurate and visual safety management effects to the open-pit mine slope, ensuring that the open-pit mine construction environment is safer.

[0066] Embodiment 2:

[0067] In terms of specific implementation, based on Example 1, this example refers to Figure 1 The method for monitoring slope deformation of an open-pit mine based on Beidou high-precision positioning technology in Example 1 is further described in detail:

[0068] The open-pit mine structural parameters are obtained by flying a drone equipped with a ranging device over the open-pit mine to obtain the position coordinates of each point on the surface of the open-pit mine. The position coordinates of each point on the surface of the open-pit mine are connected to each other to construct a model surface representing the surface of the open-pit mine. The three-dimensional model of the open-pit mine is obtained by further splicing each group of model surfaces.

[0069] Among them, before the drone equipped with ranging equipment traverses the air above the open-pit mine, the user side manually edits no less than four sets of position coordinates, so that the edited position coordinates are interconnected to determine the flight area of ​​the drone, and further configures an axis network on the flight area of ​​the drone, so that the intersection points of the axis networks are used as the ranging positions when the drone equipped with ranging equipment traverses the air above the open-pit mine. When the drone equipped with ranging equipment performs ranging operations, the drone's own position is recorded as (x, y), and the applied ranging result is recorded as z. When the drone equipped with ranging equipment performs ranging operations, the position coordinates of the surface points of the open-pit mine obtained are marked as (x, y, z).

[0070] Through the above settings, the source of the open-pit mine structural parameters is further limited, so that the obtained open-pit mine structural parameters provide necessary construction data support for the construction of the open-pit mine three-dimensional model.

[0071] like Figure 1 As shown, the base station includes a GNSS receiver and an antenna. The receiver receives Beidou satellite signals in real time and measures its own position information in real time based on the Beidou satellite signals.

[0072] Among them, the system end user of the base station defines an operation cycle, and the base station runs continuously based on the operation cycle to continuously obtain its own position information;

[0073] When constructing the open-pit mine slope deformation path, the self-position information obtained by each reference station in the same operation cycle is adjacently connected to obtain a set of polylines, namely, the open-pit mine slope deformation path. The open-pit mine slope deformation path is continuously constructed based on the corresponding time sequence of the operation cycle. After the construction is completed, the position information used in the construction of the open-pit mine slope deformation path is sourced from the operation cycle and marked on the open-pit mine slope deformation path, and then the storage operation of the open-pit mine slope deformation path is performed;

[0074] The information contained in the monitoring log includes: historical judgment results on whether there are safety issues in the open-pit mine and the historically constructed open-pit mine slope deformation path.

[0075] In this embodiment, through the above settings, further execution data support is provided for the execution of the steps of the method in Example 1, ensuring the problem execution of the method in Example 1, and bringing safety management effects to the open-pit mine slope.

[0076] In summary, during the execution of the method in the above embodiment, a three-dimensional model of the open-pit mine is constructed by acquiring the structural parameters of the open-pit mine, and then a reference station is deployed at points on the three-dimensional model of the open-pit mine to interact with the Beidou satellite, and the deformation path of the open-pit mine slope is further acquired. Finally, the risk caused by the deformation of the open-pit mine slope is analyzed based on the change in the deformation path of the open-pit mine slope, which brings real-time risk assessment effect to the open-pit mine slope and provides safety maintenance for open-pit mine operations.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology, characterized in that: include: Step 1: Obtain the structural parameters of the open-pit mine, build a three-dimensional model of the open-pit mine based on the structural parameters of the open-pit mine, and identify high-risk points on the surface of the open-pit mine; Step 2: Obtain the identified high-risk points on the surface of the open-pit mine and deploy reference stations at the high-risk points of the open-pit mine; Step 3: Obtain the base station deployment location information according to the base station to construct the open-pit mine slope deformation path, create a cloud database, store the open-pit mine slope deformation path based on the cloud database, and perform open-pit mine slope risk analysis when there are no less than three groups of stored open-pit mine slope deformation paths; Step 4: Obtain the risk analysis results of the open-pit mine slope and determine whether there are safety issues on the open-pit mine slope based on the analysis results; Step 5: Output stage of the determination result of whether there is a safety problem in the open-pit mine slope; Step 6: Record the output of the determination result of whether there is a safety problem on the open-pit mine slope, generate a monitoring log based on the recorded determination result, and store it in the cloud database.

2. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 is characterized in that: The open-pit mine structural parameters are obtained by flying a drone equipped with a ranging device over the open-pit mine to obtain the position coordinates of each point on the surface of the open-pit mine, and the position coordinates of each point on the surface of each open-pit mine are connected to each other to construct a model surface representing the surface of the open-pit mine, and further splicing each group of model surfaces to obtain a three-dimensional model of the open-pit mine; Among them, before the drone equipped with ranging equipment traverses the air above the open-pit mine, the user terminal manually edits no less than four sets of position coordinates, so that the edited position coordinates are interconnected to determine the flight area of ​​the drone, and further configures an axis network on the flight area of ​​the drone, so that the intersection points of the axis lines of the axis network are all used as the ranging positions when the drone equipped with ranging equipment traverses the air above the open-pit mine. When the drone equipped with ranging equipment performs a ranging operation, the drone's own position is recorded as (x, y), and the applied ranging result is recorded as z. When the drone equipped with ranging equipment performs a ranging operation, the position coordinates of the surface point of the open-pit mine obtained are marked as (x, y, z).

3. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 is characterized in that: In the high-risk point identification stage on the surface of the open-pit mine, vertices are captured on the three-dimensional model of the open-pit mine, all captured vertices are used as high-risk point identification targets, and high-risk points are identified among all captured vertices. The high-risk point identification logic is expressed as follows: Where: K(a) is the risk value of vertex a; n is the set of slopes that make up vertex a in the three-dimensional model of the open-pit mine; s i is the slope of the i-th group of slopes; h is the elevation of vertex a; γ is the loose coefficient of the soil layer at the surface of the open-pit mine corresponding to vertex a; m is the set of adjacent vertices of vertex a; g j is the angle between the jth adjacent vertex and the vertex a; in, Table pair The average, Table pair Seeking the average.

4. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 is characterized in that: After the risk values ​​of all vertices on the three-dimensional model of the open-pit mine are obtained, the vertices are arranged in descending order based on the risk values, and the user terminal selects the vertices based on the descending queue, and uses the selected vertices as the high-risk point identification results on the surface of the open-pit mine; When selecting vertices, the user terminal gives priority to the front vertices in the descending queue and selects them continuously until the maximum closed area that can be formed by connecting the selected vertices is no less than three quarters of the UAV's flight area, or no less than one half of the total number of vertices on the three-dimensional model of the open-pit mine.

5. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 is characterized in that: The base station includes a GNSS receiver and an antenna integrated therein, wherein the receiver receives Beidou satellite signals in real time and measures its own position information in real time based on the Beidou satellite signals; Among them, the system end user in the base station defines an operation cycle, and the base station runs continuously based on the operation cycle to continuously obtain its own position information.

6. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 is characterized in that: When constructing the open-pit mine slope deformation path, the position information of each reference station obtained within the same operating cycle is connected adjacently to each other to obtain a group of polylines, namely, the open-pit mine slope deformation path. The open-pit mine slope deformation path is continuously constructed based on the corresponding timing of the operating cycle, and after the construction is completed, the position information used to construct the open-pit mine slope deformation path is sourced from the operating cycle and marked on the open-pit mine slope deformation path, and then the storage operation of the open-pit mine slope deformation path is executed.

7. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 is characterized in that: The open pit mine slope risk analysis logic is expressed as: Where: G is the risk performance value of the open-pit mine slope; L( a )、L (b) is the length of the slope deformation paths a and b in the open-pit mine; d (a) (p r ,p′) is the distance from the right end point to the reference point in the open pit mine slope deformation path a; d (a) (p l ,p′) is the distance from the left end point to the reference point in the open pit mine slope deformation path a; d (b) (p r ,p′) is the distance from the right end point to the reference point in the open pit mine slope deformation path b; d (b) (p l ,p′) is the distance from the left end point to the reference point in the open-pit mine slope deformation path b; ε is the adjustment factor; u is the set of nodes on the open-pit mine slope deformation path; q (a) (p v ,p v+1 ) is the offset of the vth point relative to the v+1th point on the open pit mine slope deformation path a; q (b) (p v ,p v+1 ) is the offset of the vth point relative to the v+1th point on the open pit mine slope deformation path b; Among them, the larger the open-pit mine slope risk performance value G is, the greater the open-pit mine slope risk is, and vice versa, the smaller the open-pit mine slope risk is.

8. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 7 is characterized in that: The adjustment factor is 1 or -1. When the numerator of the fraction where the adjustment factor is located is less than or equal to the denominator, the adjustment factor is 1. When the numerator of the fraction where the adjustment factor is located is greater than the denominator, the adjustment factor is -1. The reference points are any group of points on the three-dimensional model of the open-pit mine that do not fall on the deformation path of the slope of the open-pit mine.

9. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1 or 7, characterized in that: When obtaining the open-pit mine slope risk performance value G, the target is always the latest three consecutive sets of open-pit mine slope deformation paths, and the latest three consecutive sets of open-pit mine slope deformation paths are recorded as a, b, and c, where c represents the latest set of open-pit mine slope deformation paths; The decision logic of whether there is a safety problem on the open-pit mine slope is expressed as follows: Where: G a-b is the risk performance value of the open-pit mine slope obtained based on a and b; G b-c is the risk performance value of the open-pit mine slope obtained based on b and c; G0 is the risk judgment value customized by the user; Among them, when any of the above formulas is true, it means that there are safety problems on the slope of the open-pit mine; otherwise, it means that there are no safety problems on the slope of the open-pit mine.

10. The method for monitoring slope deformation in an open-pit mine based on Beidou high-precision positioning technology according to claim 1, characterized in that: The information contained in the monitoring log includes: historical determination results of whether there are safety issues in the open-pit mine and historically constructed deformation paths of the open-pit mine slopes.

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