Three-dimensional visualization monitoring method and equipment for coal batches

Abstract

This invention provides a three-dimensional visualization monitoring method and device for coal batches, belonging to the field of coal monitoring technology. The method includes using a laser coal inventory device to divide the coal yard into multiple grids along both the longitudinal and transverse directions; projecting the three-dimensional coordinate data of the point cloud of each grid onto the three-dimensional coordinate system XOY plane; obtaining an inclined polyhedron by combining the vertex height of each point cloud three-dimensional coordinate data on the XOY plane; determining the volume of each inclined polyhedron and summing the volumes of all inclined polyhedra to obtain the volume of the current batch of coal. This allows for three-dimensional visualization monitoring of coal combustion and calculation of coal volume using point cloud three-dimensional coordinate data. Besides accurately understanding the coal volume, it also provides a clear understanding of the current batch's coal stacking structure, effectively improving the efficiency of three-dimensional visualization management of coal batches.

Description

Technical Field

[0001] This invention relates to the field of coal combustion monitoring technology, and in particular to a three-dimensional visualization monitoring method and equipment for batch coal combustion. Background Technology

[0002] Implementing refined coal management is not only a requirement for thermal power plants to maximize economic benefits, but also an important component of improving fuel management. Currently, the power plant has a coal yard with batch information for coal requisition by train and truck, a fuel management system, a production management SIS system, and a laser coal inventory system; however, data from these systems cannot be exchanged. The coal yard has two coal storage areas, both equipped with coal inventory systems. By using a laser scanner to automatically scan the coal yard, collecting and processing three-dimensional data of the coal piles, and drawing a three-dimensional graphic of the actual coal pile shape, the power plant can achieve visualized information management of the coal yard.

[0003] However, the existing coal inventory scanner can only show the coal yard as a whole coal pile, and cannot visually present the coal storage structure by batch. As a result, operators can only judge the coal location by manual experience when taking coal, which leads to low efficiency of visual management of coal combustion. Summary of the Invention

[0004] This invention provides a three-dimensional visualization monitoring method and equipment for batch coal combustion, which solves the shortcomings of the existing technology in terms of poor intuitiveness of coal combustion monitoring and low efficiency of visualization management.

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

[0006] Using a laser coal inventory system, the coal yard is divided into multiple grids along both the longitudinal and transverse directions;

[0007] Project the point cloud 3D coordinate data of each grid onto the 3D coordinate system XOY plane;

[0008] On the XOY plane, by combining the vertex heights of each point cloud 3D coordinate data, an inclined polyhedron is obtained;

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

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

[0011] The irregular quadrangular prism is divided into a first prism and a second prism;

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

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

[0014] According to the present invention, a three-dimensional visualization monitoring method for coal batches includes calculating the volumes of the first prism and the second prism, respectively:

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

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

[0017] Based on the projection coordinates, determine the projected areas of the first prism and the second prism in the XOY plane respectively;

[0018] The volumes of the first prism and the second prism are determined based on the projected area and the height corresponding to the coordinates of each vertex, respectively.

[0019] According to the present invention, a three-dimensional visualization monitoring method for coal batches includes determining the projected areas of the first prism and the second prism in the XOY plane based on the projected coordinates, comprising:

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

[0021] Based on the projected side length, the semi-perimeter of the projected area is determined;

[0022] Input the semi-perimeter and each of the projected side lengths to the formula for calculating the projected area, and output the projected areas of the corresponding first prism and second prism in the XOY plane.

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

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

[0025]

[0026]

[0027]

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

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

[0030]

[0031] Where p represents the semi-perimeter of the projected region.

[0032] According to the present invention, a three-dimensional visualization monitoring method for coal batches includes inputting the semi-perimeter and each projected side length to the formula for calculating the projected area, and outputting the projected area of ​​the corresponding first prism in the XOY plane, comprising:

[0033]

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

[0035] According to the present invention, a three-dimensional visualization monitoring method for coal batches is provided, wherein determining the volume of the first prism based on the projected area and the height corresponding to the coordinates of each vertex includes:

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

[0037]

[0038] in, Let z1 represent the average height corresponding to the first vertex of the first prism, z2 represent the height corresponding to the second vertex of the first prism, and z3 represent the height corresponding to the third vertex of the first prism.

[0039] Input the average value of the height and the projected area of ​​the first prism in the XOY plane into the volume formula to obtain the volume of the first prism.

[0040] According to the 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] Determine the volume of the first prism in the positive direction and the volume in the negative direction within the XOY plane, respectively;

[0042] The volume of the first prism is obtained by adding the volumes in the positive direction and subtracting the volumes in the negative direction.

[0043] Secondly, the present invention also provides a three-dimensional visualization monitoring device for batch coal combustion, comprising:

[0044] The dividing module is used to divide the coal yard into multiple grids in both the longitudinal and transverse directions using a laser coal counting instrument;

[0045] The projection module is used to project the point cloud three-dimensional coordinate data of each grid onto the three-dimensional coordinate system XOY plane;

[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 polyhedra to obtain the volume of the current batch of coal.

[0047] Thirdly, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the three-dimensional visualization monitoring method for coal batches as described above.

[0048] Fourthly, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the three-dimensional visualization monitoring method for coal batches as described above.

[0049] Fifthly, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the three-dimensional visualization monitoring method for coal batches as described above.

[0050] This invention provides a three-dimensional visualization monitoring method and device for coal batches. The method includes using a laser coal inventory device to divide the coal yard into multiple grids along both the longitudinal and transverse directions; projecting the three-dimensional coordinate data of the point cloud of each grid onto the three-dimensional coordinate system XOY plane; obtaining an inclined polyhedron by combining the vertex height of each point cloud three-dimensional coordinate data on the XOY plane; determining the volume of each inclined polyhedron and summing the volumes of all inclined polyhedra to obtain the volume of the current batch of coal. This allows for three-dimensional visualization monitoring of coal and calculation of coal volume using point cloud three-dimensional coordinate data. Besides accurately understanding the coal volume, it also provides a clear understanding of the current batch's coal stacking structure, effectively improving the efficiency of three-dimensional visualization management of coal batches. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0052] Figure 1 This is a flowchart illustrating the three-dimensional visualization monitoring method for coal batches provided in this embodiment;

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

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

[0055] Figure 4 This is a schematic diagram of the structure of the electronic device provided in this embodiment. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0057] Figure 1 This is a flowchart illustrating the three-dimensional visualization monitoring method for coal batches provided in this embodiment.

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

[0059] 101. Using a laser coal inventory device, the coal yard is divided into multiple grids in both longitudinal and transverse directions.

[0060] In a specific implementation process, after the same batch of coal piles undergoes multiple stacking and unstacking operations, their shape will become irregular. Therefore, it is necessary to use a laser coal inventory device to divide the coal yard into multiple grids in both the longitudinal and transverse directions. Each grid represents a small coal pillar with a quadrilateral base. The average spatial coordinate value of each grid point is used as the height, and the area of ​​the quadrilateral base is used as the base area. Multiplying the two gives the volume of each small coal pillar. The volume of the entire coal pile is obtained by accumulating all the small coal pillars in the coal yard.

[0061] If the coal pile has a regular structure, then the small coal pillars are all regular columns, and the volume can be directly obtained by multiplying the base area and the height. However, 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 planar quadrilateral but a spatial quadrilateral, dividing it into multiple grids can divide the irregular columns, thus obtaining the final volume of the coal pile more accurately.

[0062] 102. Project the point cloud 3D coordinate data of each grid onto the 3D coordinate system XOY plane.

[0063] Because irregularities may exist, the three-dimensional coordinate data of point cloud is used to project the three-dimensional coordinate data on different elevation surfaces onto the XOY plane, which makes it easier to calculate the volume of each pentahedron after segmentation.

[0064] The XOY plane can be understood as the coordinate plane containing the horizontal plane.

[0065] 103. On the XOY plane, combine the vertex heights of each point cloud's 3D coordinate data to obtain an inclined polyhedron.

[0066] After dividing the coal pile into a grid, the vertices corresponding to the height values ​​of multiple points in the grid and the Z values ​​in the coordinate axes are combined with the projection points to obtain a single-sided inclined polyhedron. By adding the volumes of each inclined polyhedron, the final volume of the entire coal pile can be obtained.

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

[0068] To determine the volume of each tilted polyhedron, the tilted polyhedron can be divided into regular and irregular polyhedra. The volume of the current tilted polyhedron can then be calculated by dividing the tilted polyhedron into regular and irregular polyhedra.

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

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

[0071] Specifically, the irregular quadrangular prism can be divided into a first prism and a second prism by connecting bd and dividing the face abcd into Vabd and Vcbd. Using triangles as the smallest unit, the prisms are projected onto the XOY plane, i.e., the coal yard ground, to obtain the volume Va0b0d0 of the first prism and the volume Vc0b0d0 of the second prism.

[0072] Then, by summing the volumes of the first prism and the second prism, we obtain the volume of the tilted polyhedron.

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

[0074] Taking the first prism abd-a0b0d0 as an example, let the coordinates of vertex a be (X1,Y1,Z1), vertex b be (X2,Y2,Z2), vertex d be (X3,Y3,Z3), and vertex c be (X4,Y4,Z4). The coordinates 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, respectively.

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

[0076]

[0077]

[0078]

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

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

[0081]

[0082] Where p represents the semi-perimeter of the projected region.

[0083] Finally, input the semi-perimeter and the length of each projected side to the formula for calculating the projected area, and output the projected areas of the first and second prisms in the XOY plane respectively. The formula for calculating the projected area is as follows (5):

[0084]

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

[0086] Similarly, the area of ​​Vc0b0d0 can be obtained.

[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, i.e., formula (6):

[0088]

[0089] in, Let z1 represent the average height corresponding to the first vertex of the first prism, z2 represent the height corresponding to the second vertex of the first prism, and z3 represent the height corresponding to the third vertex of the first prism.

[0090] Input the average height and the projected 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 shown in formula (7):

[0091]

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

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

[0094]

[0095]

[0096]

[0097] Where 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] In the coal pile, i.e., the quadrangular prism abcd-a1b1c1d1, a point p is determined. The normal vectors i emanating from p are defined as pointing upwards into the XOY plane as positive and downwards as negative. This can be understood as the volumes in the positive and negative directions within the XOY plane. The volumes in the positive directions are added together, and the volumes in the negative directions are subtracted to obtain the final volume of the quadrangular prism abcd-a1b1c1d1, as shown in formula (11):

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

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

[0101] The system monitors coal pile volume in real time using 3D digital technology, and the status of the coal pile can be displayed in real time through point-of-use data. The simulated shape of the coal pile can also be updated in real time through a simulation model, thus enabling better management of the coal pile. It achieves precise coal blending and combustion, reducing power generation costs. By integrating coal intake, consumption, and storage management, and implementing closed-loop management of coal quantity, quality, and price information, it ensures full-process control of coal from its entry into the site to its entry into the furnace, and provides batch-by-batch 3D visual digital monitoring of coal with energy conservation in the coal yard, thereby improving coal management efficiency and utilization.

[0102] Based on the same general inventive concept, this invention also protects a three-dimensional visualization monitoring device for coal batches. The three-dimensional visualization monitoring device for coal batches provided by this invention will be described below. The three-dimensional visualization monitoring device for coal batches described below can be referred to in correspondence with the three-dimensional visualization monitoring method for coal batches described above.

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

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

[0105] The dividing module 301 is used to divide the coal yard into multiple grids in both longitudinal and transverse directions using a laser coal counting instrument;

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

[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 polyhedra to obtain the volume of the current batch of coal.

[0108] Figure 4 This 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. The processor 410, communication interface 420, and memory 430 communicate with each other via the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a three-dimensional visualization monitoring method for coal batches. This method includes: using a laser coal inventory device to divide the coal yard into multiple grids along both longitudinal and transverse directions; projecting the three-dimensional coordinate data of the point cloud of each grid onto the three-dimensional coordinate system XOY plane; obtaining an inclined polyhedron by combining the vertex heights of each point cloud three-dimensional coordinate data on the XOY plane; determining the volume of each inclined polyhedron and summing the volumes of all the inclined polyhedra to obtain the volume of the current batch of coal.

[0110] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0111] On the other hand, the present invention also provides a computer program product, which includes a computer program that 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 for coal batches provided by the above methods. The method includes: using a laser coal inventory device to divide the coal yard into multiple grids in both longitudinal and transverse directions; projecting the three-dimensional coordinate data of the point cloud of each grid onto the three-dimensional coordinate system XOY plane; obtaining an inclined polyhedron by combining the vertex height of each point cloud three-dimensional coordinate data on the XOY plane; determining the volume of each inclined polyhedron and summing the volumes of all the inclined polyhedra to obtain the volume of the current batch of coal.

[0112] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the three-dimensional visualization monitoring method for coal batches provided by the above methods. The method includes: using a laser coal inventory device to divide the coal yard into multiple grids in both longitudinal and transverse directions; projecting the three-dimensional coordinate data of the point cloud of each grid onto a three-dimensional coordinate system XOY plane; obtaining an inclined polyhedron on the XOY plane by combining the vertex heights of each point cloud three-dimensional coordinate data; determining the volume of each inclined polyhedron and summing the volumes of all the inclined polyhedra to obtain the volume of the current batch of coal.

[0113] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0114] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments 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, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do 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 three-dimensional visualization monitoring of a coal batch, characterized in that, The method comprises the following steps: dividing the coal yard into multiple grids in the longitudinal and transverse directions by using a laser disc coal instrument; projecting point cloud three-dimensional coordinate data of each grid onto an XOY plane of a three-dimensional coordinate system; obtaining an inclined polyhedron on the XOY plane in combination with vertex heights of the point cloud three-dimensional coordinate data of each grid; determining volumes of the inclined polyhedrons respectively and summing up the volumes of all the inclined polyhedrons to obtain a volume of the current batch of coal; when the inclined polyhedron is an irregular quadrangular prism, the step of determining the volumes of the inclined polyhedrons respectively comprises the following steps: dividing the irregular quadrangular prism into a first prism and a second prism; 2. The coal combustion batch three-dimensional visualization monitoring method according to claim 1, characterized in that, calculating the volumes of the first prism and the second prism respectively; summing up the volumes of the first prism and the second prism to obtain the volume of the inclined polyhedron; the step of calculating the volumes of the first prism and the second prism respectively comprises the following steps: determining vertex coordinates of the first prism and the second prism respectively; 3. The coal combustion batch three-dimensional visualization monitoring method according to claim 2, characterized in that, The vertex coordinates are respectively , and ; determining projection coordinates of the first prism and the second prism in the XOY plane based on the vertex coordinates respectively; ； ； ； wherein denotes a first side length, denotes a second side length, denotes a third side length.

4. The coal combustion batch three-dimensional visualization monitoring method according to claim 3, characterized in that, determining projection areas of the first prism and the second prism in the XOY plane based on the projection coordinates respectively; ； wherein denotes the half-perimeter of the projection area.

5. The coal combustion batch three-dimensional visualization monitoring method according to claim 4, characterized in that, determining the volumes of the first prism and the second prism based on the projection areas and heights corresponding to the vertex coordinates respectively. ； wherein, denotes the projected area of the first prism in the XOY plane.

6. The coal combustion batch three-dimensional visualization monitoring method according to claim 5, characterized in that, the step of determining the projection areas of the first prism and the second prism in the XOY plane based on the projection coordinates respectively comprises the following steps: determining projection side lengths of the first prism and the second prism in the XOY plane respectively; ； wherein represents the average value of the height corresponding to the three vertices of the first prism, represents the height corresponding to the first vertex of the first prism, represents the height corresponding to the second vertex of the first prism, represents the height corresponding to the third vertex of the first prism; determining a half perimeter of a projection region based on the projection side lengths; 7. The coal combustion batch three-dimensional visualization monitoring method according to claim 6, characterized in that, inputting the half perimeter and each projection side length into a projection area calculation formula to output corresponding projection areas of the first prism and the second prism in the XOY plane respectively. the step of determining the projection side lengths of the first prism in the XOY plane comprises the following steps: the step of determining the half perimeter of the projection region based on the projection side lengths comprises the following steps:

8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, the step of inputting the half perimeter and each projection side length into the projection area calculation formula to output the projection area of the first prism in the XOY plane comprises the following steps: the step of determining the volumes of the first prism based on the projection areas and the heights corresponding to the vertex coordinates respectively comprises the following steps: determining the heights corresponding to the vertex coordinates and an average value of the heights; inputting the average value of the heights and the projection area of the first prism in the XOY plane into a volume formula to obtain the volume of the first prism. after obtaining the volume of the first prism, the method further comprises the following steps: determining a positive direction volume and a negative direction volume of the first prism in the XOY plane respectively; adding the positive direction volume and subtracting the negative direction volume to obtain a final volume of the first prism. the processor executes the program to implement the method for visualizing and monitoring the batch of coal in three dimensions according to any one of claims 1 to 7.

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