Three-dimensional visual monitoring method and equipment for fire coal batch

Abstract

The invention provides a fire coal batch three-dimensional visual monitoring method and device, and belongs to the technical field of fire coal monitoring, and the method comprises the steps: dividing a coal yard into a plurality of grids according to the longitudinal and transverse directions through a laser coal checking instrument; projecting the point cloud three-dimensional coordinate data of each grid to a three-dimensional coordinate system XOY plane; on the XOY plane, combining the vertex height of the three-dimensional coordinate data of each point cloud to obtain an inclined polyhedron; the volume of each inclined polyhedron is determined, the volumes of all the inclined polyhedrons are summed to obtain the volume of the fire coal of the current batch, the fire coal is monitored in a three-dimensional visualization mode, the volume of the fire coal is calculated through point cloud three-dimensional coordinate data, the volume of the fire coal can be accurately known, and the volume of the fire coal can be accurately calculated. And the fire coal stacking structure of the current batch can be clearly known through the point cloud three-dimensional coordinate data, so that the three-dimensional visual management efficiency of the fire coal batch is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal burning monitoring, and in particular to a three-dimensional visualization monitoring method and equipment for coal burning batches. Background Art

[0002] Implementing refined coal management is not only a requirement for thermal power generation companies to maximize economic benefits, but also an important part of implementing the requirements for improving fuel management. The power plant currently has coal yard trains, car pile coal batch information, fuel management system, production management SIS system, and laser coal panning system. The data of each system cannot interact; there are two coal storage sites in the coal yard, both of which are equipped with coal panning systems. Use laser scanners to automatically scan the coal yard, collect and process the three-dimensional data information of the coal pile, draw a three-dimensional graphic of the actual coal yard stacking shape, and realize the visual information management of the coal yard.

[0003] However, the scanning results of the existing coal pan can only show the coal yard as a whole coal pile, and cannot intuitively present the coal storage structure by batch. As a result, the operator can only judge the coal taking location based on manual experience when taking coal, resulting in low efficiency in the visual management of coal burning. Summary of the invention

[0004] The present invention provides a three-dimensional visual monitoring method and equipment for coal batches, which are used to solve the defects of poor intuitiveness of coal monitoring and low visual management efficiency in the prior art.

[0005] In a first aspect, the present invention provides a three-dimensional visualization monitoring method for coal batches, comprising:

[0006] Using the laser coal meter, the coal yard is divided into multiple grids in both vertical and horizontal directions;

[0007] Projecting the three-dimensional coordinate data of the point cloud of each grid onto the XOY plane of the three-dimensional coordinate system;

[0008] On the XOY plane, combining the vertex heights of each of the point cloud three-dimensional coordinate data to obtain an inclined polyhedron;

[0009] The volume of each of the inclined polyhedrons is determined respectively, and the volumes of all the inclined polyhedrons are summed to obtain the volume of the current batch of coal.

[0010] According to a three-dimensional visualization monitoring method for coal batches provided by the present invention, when the inclined polyhedron is an irregular quadrangular prism, the step of respectively determining the volume of each inclined polyhedron includes:

[0011] Dividing the irregular quadrangular prism into a first prism and a second prism;

[0012] respectively calculating the volume of the first prism and the volume of the second prism;

[0013] The volume of the inclined polyhedron is obtained by summing the volume of the first prism and the volume of the second prism.

[0014] According to a three-dimensional visualization monitoring method for coal-fired batches provided by the present invention, respectively calculating the volume of the first prism and the volume of the second prism comprises:

[0015] Determining vertex coordinates of the first prism and the second prism respectively;

[0016] Based on the vertex coordinates, respectively determine the projection coordinates of the first prism and the second prism in the XOY plane;

[0017] Determine, based on the projection coordinates, projection areas of the first prism and the second prism in the XOY plane;

[0018] The volume of the first prism and the volume of the second prism are determined based on the projection area and the heights corresponding to the vertex coordinates, respectively.

[0019] According to a three-dimensional visualization monitoring method for coal batches provided by the present invention, the projected areas of the first prism and the second prism in the XOY plane are determined based on the projection coordinates respectively, including:

[0020] Determine the projected side lengths of the first prism and the second prism in the XOY plane respectively;

[0021] Based on the projection side length, determining the semi-perimeter of the projection area;

[0022] The semi-perimeter and each of the projected side lengths are input into a projection area calculation formula, and the projection areas of the corresponding first prism and the second prism in the XOY plane are output respectively.

[0023] According to a three-dimensional visualization monitoring method for coal-fired batches provided by the present invention, the vertex coordinates are (X1, Y1, Z1), (X2, Y2, Z2) and (X3, Y3, Z3);

[0024] Determining the projection side length of the first prism in the XOY plane includes:

[0025]

[0026]

[0027]

[0028] Among them, p1 represents the first side length, p2 represents the second side length, and p3 represents the third side length.

[0029] According to a three-dimensional visualization monitoring method for coal batches provided by the present invention, determining the semi-perimeter of the projection area based on the projection side length includes:

[0030]

[0031] Where p represents the semi-perimeter of the projection area.

[0032] According to a three-dimensional visualization monitoring method for coal-fired batches provided by the present invention, the input of the semi-perimeter and each of the projection side lengths into a projection area calculation formula, and the output of the corresponding projection area of ​​the first prism in the XOY plane, include:

[0033]

[0034] in, represents the projection area of ​​the first prism in the XOY plane.

[0035] According to a three-dimensional visualization monitoring method for coal batches provided by the present invention, the volume of the first prism is determined based on the projection area and the height corresponding to each vertex coordinate, including:

[0036] Determine the height corresponding to each vertex coordinate and the average value of the corresponding height;

[0037]

[0038] in, represents the average value of the heights corresponding to the three vertices of the first prism, z1 represents the height corresponding to the first vertex of the first prism, z2 represents the height corresponding to the second vertex of the first prism, and z3 represents the height corresponding to the third vertex of the first prism;

[0039] The average value of the heights and the projected area of ​​the first prism in the XOY plane are input into a volume formula to obtain the volume of the first prism.

[0040] According to a three-dimensional visualization monitoring method for coal batches provided by the present invention, after obtaining the volume of the first prism, the method further includes:

[0041] respectively determining the volume of the first prism in the positive direction and the volume of the first prism in the XOY plane;

[0042] The volumes in the positive direction are added together and then the volumes in the negative direction are subtracted to obtain the final volume of the first prism.

[0043] In a second aspect, the present invention further provides a three-dimensional visualization monitoring device for coal batches, comprising:

[0044] The division module is used to divide the coal yard into multiple grids in both vertical and horizontal directions using a laser coal meter;

[0045] A projection module, used for projecting the three-dimensional coordinate data of the point cloud of each grid onto the XOY plane of the three-dimensional coordinate system;

[0046] The determination module is used to obtain an inclined polyhedron on the XOY plane by combining the vertex height of each point cloud three-dimensional coordinate data; determine the volume of each inclined polyhedron respectively, and sum the volumes of all the inclined polyhedrons to obtain the volume of the current batch of coal.

[0047] In a third aspect, the present invention further provides an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements any one of the above-mentioned three-dimensional visualization monitoring methods for coal batches.

[0048] In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the above-described three-dimensional visualization monitoring methods for coal batches.

[0049] In a fifth aspect, the present invention further provides a computer program product, comprising a computer program, which, when executed by a processor, implements any of the above-mentioned three-dimensional visualization monitoring methods for coal batches.

[0050] The present invention provides a three-dimensional visualization monitoring method and equipment for coal batches. The method includes using a laser coal meter to divide a coal yard into multiple grids in both vertical and horizontal directions; projecting the point cloud three-dimensional coordinate data of each grid onto the XOY plane of the three-dimensional coordinate system; on the XOY plane, combining the vertex heights of each point cloud three-dimensional coordinate data to obtain an inclined polyhedron; determining the volume of each inclined polyhedron separately, and summing the volumes of all inclined polyhedrons to obtain the volume of the current batch of coal, monitoring the coal through three-dimensional visualization, and calculating the coal volume through the point cloud three-dimensional coordinate data, in addition to being able to accurately understand the coal volume, the coal stacking structure of the current batch can also be clearly understood through the point cloud three-dimensional coordinate data, effectively improving the three-dimensional visualization management efficiency of the coal batch. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0052] Figure 1 Schematic diagram of the process of the three-dimensional visual monitoring method of coal batches provided in this embodiment;

[0053] Figure 2 is a schematic diagram of the coal pile volume calculation principle provided in this embodiment;

[0054] Figure 3 is a schematic diagram of the structure of the three-dimensional visual monitoring device for coal batches provided in this embodiment;

[0055] Figure 4 It is a schematic diagram of the structure of the electronic device provided in this embodiment. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0057] Figure 1 It is a flow chart of the three-dimensional visualization monitoring method for coal batches provided in this embodiment.

[0058] like Figure 1 As shown, the three-dimensional visualization monitoring method for coal batches provided by the embodiment of the present invention mainly includes the following steps:

[0059] 101. Use the laser coal meter to divide the coal yard into multiple grids in both vertical and horizontal directions.

[0060] In a specific implementation process, the shape of the same batch of coal piles will become irregular after multiple stacking and unloading operations. Therefore, it is necessary to use the laser coal meter to divide the coal yard into multiple grids in the vertical and horizontal directions. Each grid represents a small coal pillar with a quadrilateral bottom. The average of the spatial coordinate values ​​of each grid point is used as the height, and the area of ​​the bottom quadrilateral is used as the bottom area. The multiplication of the two is the volume of each small coal pillar, and the volume of all small coal pillars in the coal yard is accumulated to obtain the volume of the entire coal pile.

[0061] Among them, if the coal pile has a regular structure, the small coal pillars are all regular columns, and the volume can be directly obtained by multiplying the bottom area by the height. When this theory is applied to the calculation of the volume of a single batch of coal piles, because the bottom surface of the coal pile may no longer be a plane quadrilateral but a spatial quadrilateral due to the stratification of the coal pile, it can be divided into multiple grids, which can divide the irregular columns and obtain the final volume of the coal pile more accurately.

[0062] 102. Project the three-dimensional coordinate data of the point cloud of each grid onto the XOY plane of the three-dimensional coordinate system.

[0063] Since there may be irregular situations, the three-dimensional coordinate data of the point cloud is used to project the three-dimensional coordinate data on different elevation surfaces onto the XOY plane, and then the volume of each pentahedron after segmentation is calculated.

[0064] The XOY plane can be understood as a coordinate plane where the horizontal plane is located.

[0065] 103. On the XOY plane, the vertex height of each point cloud three-dimensional coordinate data is combined to obtain an inclined polyhedron.

[0066] After being divided into grids, the vertices corresponding to the height values ​​are connected with the projection points according to the height values ​​of multiple points in the grid and the Z value in the coordinate axis to obtain a single-sided inclined polyhedron. By adding the volume of each inclined polyhedron, the final volume of the entire coal pile can be obtained.

[0067] 104. Determine the volume of each inclined polyhedron respectively, and sum the volumes of all inclined polyhedrons to obtain the volume of the current batch of coal.

[0068] To determine the volume of each inclined polyhedron, the inclined polyhedron can be divided into regular polyhedrons and irregular polyhedrons, and then the regular polyhedrons and irregular polyhedrons are calculated respectively, so that the volume of the current inclined polyhedron can be successfully calculated.

[0069] Figure 2 It is a schematic diagram of the coal pile volume calculation principle provided in this embodiment.

[0070] like Figure 2 As shown, the corresponding inclined polyhedron is an irregular quadrangular prism. Therefore, the volume of the quadrangular prism abcd-a1b1c1d1 is the volume of the coal pile.

[0071] Specifically, the irregular quadrangular prism is first divided into a first prism and a second prism, that is, bd is connected, and the surface abcd is divided into Vabd and Vcbd, and the triangle is used as the smallest unit to project them onto the XOY plane, that is, the coal yard ground, to obtain the volume Va0b0d0 of the first prism and the volume Vc0b0d0 of the second prism.

[0072] Then, the volume of the inclined polyhedron is obtained by summing the volume of the first prism and the volume of the second prism.

[0073] Among them, the method of respectively calculating the volume of the first prism and the volume of the second prism is to obtain them by means of base area and height, including: respectively determining the vertex coordinates of the first prism and the second prism; based on the vertex coordinates, respectively determining the projection coordinates of the first prism and the second prism in the XOY plane; respectively determining the projection areas of the first prism and the second prism in the XOY plane based on the projection coordinates; respectively determining the volume of the first prism and the second prism based on the projection area and the height corresponding to each vertex coordinate.

[0074] Taking the first prism abd-a0b0d0 as an example, assuming that the coordinates of vertex a are (X1, Y1, Z1), the coordinates of vertex b are (X2, Y2, Z2), the coordinates of vertex d are (X3, Y3, Z3), and the coordinates of vertex c are (X4, Y4, Z4), the coordinate values ​​of each projection point a0, b0, c0, and d0 can be obtained. Then the three side lengths of Va0b0d0 are the first side length a0b0, the second side length a0d0, and the third side length b0d0.

[0075] Determine the projected side lengths of the first prism and the second prism in the XOY plane, respectively, as shown in formulas (1), (2) and (3):

[0076]

[0077]

[0078]

[0079] Among them, p1 represents the first side length, p2 represents the second side length, and p3 represents the third side length.

[0080] Based on the projection side length, the semi-perimeter of the projection area is determined, as shown in formula (4):

[0081]

[0082] Where p represents the semi-perimeter of the projection area.

[0083] Finally, the semi-perimeter and each projected side length are input into the projection area calculation formula, and the corresponding projection areas of the first prism and the second prism in the XOY plane are output respectively, where the projection area calculation formula is as follows (5):

[0084]

[0085] in, represents the projected area of ​​the first prism in the XOY plane.

[0086] Similarly, we can get the area of ​​Vc0b0d0

[0087] like Figure 2 As shown, the average value of the elevation coordinates z of points a, b, and d is taken as the height, that is, formula (6):

[0088]

[0089] in, represents the average value of the heights corresponding to the three vertices of the first prism, z1 represents the height corresponding to the first vertex of the first prism, z2 represents the height corresponding to the second vertex of the first prism, and z3 represents the height corresponding to the third vertex of the first prism.

[0090] Input the average value of the height and the projection area of ​​the first prism in the XOY plane into the volume formula to obtain the volume of the first prism. The volume formula is as follows:

[0091]

[0092] Wherein, V1 represents the volume of the first prism abd-a0b0d0.

[0093] By the same token, the volumes of other prisms can be calculated, such as (8), (9) and (10):

[0094]

[0095]

[0096]

[0097] Among them, V2 represents the volume of the triangular prism cbd-c0b0d0, V3 represents the volume of the triangular prism a1b1d1-a0b0d0, and V4 represents the volume of the triangular prism c1b1d1-c0b0d0.

[0098] A point p is determined in the coal pile, i.e., the tetrahedron abcd-a1b1c1d1. The normal vectors i that are sent outward in multiple directions define the direction above the XOY plane as positive and the direction below as negative. This can be understood as the volume in the positive direction and the volume in the negative direction in the XOY plane. The volume in the positive direction is added and then subtracted from the volume in the negative direction to obtain the final volume of the tetrahedron abcd-a1b1c1d1, as shown in formula (11):

[0099] V=V1+V2-V3-V4 (11)

[0100] Therefore, the volume of the coal pile was calculated through the point cloud three-dimensional coordinate data.

[0101] The volume of the coal pile can be monitored in real time through three-dimensional digital means, and the point transportation data can display the status of the coal pile in real time. The shape of the simulated coal pile can also be updated in real time through the simulation model, so as to better manage the coal pile. It can achieve accurate coal blending and combustion, reduce power generation costs, and achieve integrated management of coal intake, consumption, and storage, and closed-loop management of coal quantity, quality, and price information. It ensures the control of the entire process from coal entry to furnace entry, and the three-dimensional visual digital monitoring of coal batches with energy conservation in and out of the coal yard, which improves the efficiency and utilization of coal management.

[0102] Based on the same general inventive concept, the present invention also protects a three-dimensional visualization monitoring device for coal-fired batches. The three-dimensional visualization monitoring device for coal-fired batches provided by the present invention is described below. The three-dimensional visualization monitoring device for coal-fired batches described below and the three-dimensional visualization monitoring method for coal-fired batches described above can be referenced to each other.

[0103] Figure 3 It is a structural schematic diagram of the three-dimensional visualization monitoring device for coal batches provided in this embodiment.

[0104] like Figure 3 As shown, this embodiment provides a three-dimensional visualization monitoring device for coal batches, comprising:

[0105] The division module 301 is used to divide the coal yard into multiple grids in both vertical and horizontal directions by using a laser coal meter;

[0106] A projection module 302 is used to project the three-dimensional coordinate data of the point cloud of each grid onto the XOY plane of the three-dimensional coordinate system;

[0107] The determination module 303 is used to obtain an inclined polyhedron on the XOY plane by combining the vertex height of each point cloud three-dimensional coordinate data; determine the volume of each inclined polyhedron respectively, and sum the volumes of all the inclined polyhedrons to obtain the volume of the current batch of coal.

[0108] Figure 4 It is a schematic diagram of the structure of the electronic device provided in this embodiment.

[0109] like Figure 4As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430 and a communication bus 440, wherein the processor 410, the communication interface 620 and the memory 430 communicate with each other through the communication bus 440. The processor 410 may call the logic instructions in the memory 430 to execute the three-dimensional visualization monitoring method for coal batches, the method comprising: using a laser coal meter to divide the coal yard into a plurality of grids in both the vertical and horizontal directions; projecting the three-dimensional coordinate data of the point cloud of each grid onto the XOY plane of the three-dimensional coordinate system; on the XOY plane, combining the vertex height of each of the three-dimensional coordinate data of the point cloud to obtain an inclined polyhedron; respectively determining the volume of each of the inclined polyhedrons, and summing the volumes of all the inclined polyhedrons to obtain the volume of the current batch of coal.

[0110] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0111] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the three-dimensional visualization monitoring method of coal batches provided by the above methods. The method includes: using a laser coal meter to divide the coal yard into multiple grids in the vertical and horizontal directions; projecting the point cloud three-dimensional coordinate data of each grid onto the XOY plane of the three-dimensional coordinate system; on the XOY plane, combining the vertex height of each point cloud three-dimensional coordinate data to obtain an inclined polyhedron; separately determine the volume of each inclined polyhedron, and sum the volumes of all the inclined polyhedrons to obtain the volume of the current batch of coal.

[0112] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the three-dimensional visualization monitoring method for coal batches provided by the above-mentioned methods, the method comprising: using a laser coal meter to divide the coal yard into multiple grids in both vertical and horizontal directions; projecting the point cloud three-dimensional coordinate data of each grid onto the XOY plane of the three-dimensional coordinate system; on the XOY plane, combining the vertex height of each point cloud three-dimensional coordinate data to obtain an inclined polyhedron; separately determining the volume of each inclined polyhedron, and summing the volumes of all the inclined polyhedrons to obtain the volume of the current batch of coal.

[0113] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0114] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A three-dimensional visualization monitoring method for coal batches, characterized in that: include: Using the laser coal meter, the coal yard is divided into multiple grids in both vertical and horizontal directions; Projecting the three-dimensional coordinate data of the point cloud of each grid onto the XOY plane of the three-dimensional coordinate system; On the XOY plane, combining the vertex heights of each of the point cloud three-dimensional coordinate data to obtain an inclined polyhedron; The volume of each of the inclined polyhedrons is determined respectively, and the volumes of all the inclined polyhedrons are summed to obtain the volume of the current batch of coal.

2. The three-dimensional visualization monitoring method for coal batches according to claim 1 is characterized in that: When the inclined polyhedron is an irregular quadrangular prism, the step of respectively determining the volume of each inclined polyhedron includes: Dividing the irregular quadrangular prism into a first prism and a second prism; respectively calculating the volume of the first prism and the volume of the second prism; The volume of the inclined polyhedron is obtained by summing the volume of the first prism and the volume of the second prism.

3. The three-dimensional visualization monitoring method for coal batches according to claim 2 is characterized in that: The respectively calculating the volume of the first prism and the volume of the second prism comprises: Determining vertex coordinates of the first prism and the second prism respectively; Based on the vertex coordinates, respectively determine the projection coordinates of the first prism and the second prism in the XOY plane; Determine, based on the projection coordinates, projection areas of the first prism and the second prism in the XOY plane; The volume of the first prism and the volume of the second prism are determined based on the projection area and the heights corresponding to the vertex coordinates, respectively.

4. The three-dimensional visualization monitoring method for coal batches according to claim 3 is characterized in that: The determining, based on the projection coordinates respectively, the projection areas of the first prism and the second prism in the XOY plane comprises: Determine the projected side lengths of the first prism and the second prism in the XOY plane respectively; Based on the projection side length, determining the semi-perimeter of the projection area; The semi-perimeter and each of the projected side lengths are input into a projection area calculation formula, and the projection areas of the corresponding first prism and the second prism in the XOY plane are output respectively.

5. The three-dimensional visualization monitoring method for coal batches according to claim 4 is characterized in that: The vertex coordinates are (X1, Y1, Z1), (X2, Y2, Z2) and (X3, Y3, Z3) respectively; Determining the projection side length of the first prism in the XOY plane includes: Among them, p1 represents the first side length, p2 represents the second side length, and p3 represents the third side length.

6. The three-dimensional visualization monitoring method for coal batches according to claim 5 is characterized in that: The determining of the semi-perimeter of the projection area based on the projection side length includes: Where p represents the semi-perimeter of the projection area.

7. The three-dimensional visualization monitoring method for coal batches according to claim 6 is characterized in that: The inputting of the semi-perimeter and each of the projected side lengths into a projection area calculation formula, and outputting the corresponding projection area of ​​the first prism in the XOY plane, comprises: in, represents the projection area of ​​the first prism in the XOY plane.

8. The three-dimensional visualization monitoring method for coal batches according to claim 7 is characterized in that: The determining the volume of the first prism based on the projection area and the height corresponding to each vertex coordinate, respectively, comprises: Determine the height corresponding to each vertex coordinate and the average value of the corresponding height; in, represents the average value of the heights corresponding to the three vertices of the first prism, z1 represents the height corresponding to the first vertex of the first prism, z2 represents the height corresponding to the second vertex of the first prism, and z3 represents the height corresponding to the third vertex of the first prism; The average value of the heights and the projected area of ​​the first prism in the XOY plane are input into a volume formula to obtain the volume of the first prism.

9. The three-dimensional visualization monitoring method for coal batches according to claim 8 is characterized in that: After obtaining the volume of the first prism, the method further includes: respectively determining the volume of the first prism in the positive direction and the volume of the first prism in the XOY plane; The volumes in the positive direction are added together and then the volumes in the negative direction are subtracted to obtain the final volume of the first prism.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the three-dimensional visualization monitoring method for coal batches as described in any one of claims 1 to 9 is implemented.

Images