CN112785706A - Dynamic analysis method, system, equipment and medium for reserves of multi-type ore storage yard - Google Patents
Dynamic analysis method, system, equipment and medium for reserves of multi-type ore storage yard Download PDFInfo
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Abstract
The invention discloses a method, a system, equipment and a medium for dynamically analyzing the reserves of a multi-type ore yard, wherein the method comprises the following steps: acquiring images of various ore storage yards of open mines acquired by unmanned aerial vehicle aerial photography; analyzing the images of various types of ore storage yards by an aerial triangulation analysis method, converting the images into three-dimensional dense point cloud data of various types of ore storage yards, and processing the data to obtain three-dimensional models of various types of ore storage yards; extracting elevation point information of the ore yard based on three-dimensional models of the ore yards of various types; and circularly and iteratively extracting the elevation point information of the multi-type ore yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore yard in different periods. The method lays a foundation for scientifically optimizing the ore mining design of the stope, further makes a scientific plan for stope ore blending and ore supply, and is favorable for reasonably making the index of stope ore supply and blending.
Description
Technical Field
The invention relates to a dynamic analysis method, a dynamic analysis system, dynamic analysis equipment and a dynamic analysis medium for the reserves of a multi-type ore yard, and belongs to the field of open-pit mining.
Background
The open mine ore storage yard exists to ensure that the supply of ore in the mining field meets the mill selection consumption and has partial surplus. Meanwhile, considering the change of ore grade of a stope, the comprehensive utilization of high-grade and low-grade ores is very important for ore supply of a factory, the balanced ore blending index is ensured, the high-grade ores are not excessively consumed, and the ore grade is prevented from not reaching the standard. Therefore, a plurality of types of adjacent complex ore storage yards are arranged near the ore storage yards of some open mines, and the comprehensive utilization of the ore storage yards is the key point for ensuring the normal and efficient operation of the sorting plant.
The earlier-stage stacking height of the ore yard is high, the area is simply measured manually, the time consumption is long, the labor intensity is high, and meanwhile, due to the fact that a plurality of points which are difficult to measure exist on the side slope of the yard, the data integrity is poor, the accuracy of manual measurement is difficult to guarantee, and therefore a more effective measuring means is needed.
Based on current measurement technical means, low latitude unmanned aerial survey technique is non-contact survey and drawing, has precision height, weak point consuming time, artifical low in labor strength, simple and convenient, visual effectual advantage of achievement etc. the accessible sets up the flight line flight and processes with data post processing, acquires two or more stage ore yard's whole topographic information fast, and the integrality of data can be guaranteed, provides safe, efficient solution for the collection of the adjacent ore yard reserves data of polymorphic type.
The storage capacity of the storage yard is an important aspect of the mining and ore supply planning of the surface mine and is also the foundation. The significance of the research on the storage amount of the stock dump lies in scientifically planning a mining scheme, making a ore distribution plan of different ore grades and analyzing the relationship between mining and consumption, so that the fine management of the ore stock dump is realized.
Disclosure of Invention
In view of the above, the invention provides a dynamic analysis method, system, device and medium for the reserves of various ore storage yards, which can better feed back the ore mining and consumption conditions of the mining yard by acquiring the basic data of the reserves of the ore storage yard, dynamically analyzing the reserve changes in different periods and analyzing the dynamic change relationship between the ore blending and ore supply of the mining yard, lay a foundation for scientifically optimizing the ore mining design of the mining yard, further formulate a scientific plan for ore blending and ore supply of the mining yard, acquire the reserves of the ore storage yards with different grades, and be beneficial to reasonably formulating the ore supply and blending indexes of the mining yard.
The invention aims to provide a dynamic analysis method for the reserves of a multi-type ore yard.
The second purpose of the invention is to provide a dynamic analysis system for the reserves of the multi-type ore storage yard.
It is a third object of the invention to provide a computer apparatus.
It is a fourth object of the present invention to provide a storage medium.
The first purpose of the invention can be achieved by adopting the following technical scheme:
a method for dynamically analyzing reserves of a multi-type ore yard, the method comprising:
acquiring images of various ore storage yards of open mines acquired by unmanned aerial vehicle aerial photography;
analyzing various types of ore yard images by an aerial triangulation analysis method, and converting the various types of ore yard images into various types of three-dimensional dense point cloud data of the ore yard;
processing three-dimensional dense point cloud data of various types of ore storage yards to obtain three-dimensional models of the various types of ore storage yards;
extracting elevation point information of the ore yard based on three-dimensional models of the ore yards of various types;
and circularly and iteratively extracting the elevation point information of the multi-type ore yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore yard in different periods.
Further, the method further comprises:
according to the change conditions of the multi-type ore storage yard reserve data at different periods, the difference between plan and implementation is found out by combining the actual ore mining and blending execution conditions, and the ore supply and blending instruction is updated and issued;
and continuously optimizing the proportion of on-site mining and ore blending of the ore storage yard, and checking and correcting the execution condition of the optimized ore supply and blending instruction.
Further, the analyzing various types of ore yard images by an aerial triangulation analysis method to convert the various types of ore yard images into various types of ore yard three-dimensional dense point cloud data specifically includes:
carrying out automatic image matching analysis on various types of ore yard images, judging the integrity of the ore yard images and ensuring that the calculation requirements of an aerial triangulation analysis method are met;
importing image control points and check point coordinates to perform primary point puncturing, and ensuring that each image control point and check point punctures at least three continuous ore yard images;
performing first aerial triangulation analytical method calculation on the ore yard image subjected to the first pricking to obtain a first resolving image;
and performing secondary pricking on the first resolved image, and performing secondary aerial triangulation analytical method calculation on the first resolved image subjected to secondary pricking to obtain a second resolved image serving as three-dimensional dense point cloud data of various ore storage yards.
Further, the processing of the three-dimensional dense point cloud data of the various types of ore storage yards to obtain three-dimensional models of the various types of ore storage yards specifically includes:
judging whether the three-dimensional dense point cloud data of various types of ore storage yards meet the requirement of model reconstruction or not;
if the three-dimensional dense point cloud data meet the requirement of model reconstruction, carrying out comprehensive analysis on error precision through a three-dimensional model precision error, an image control point error and a check point error, and judging whether the error precision meets the topographic map mapping precision requirement of a preset proportion;
and if the three-dimensional dense point cloud data meets the topographic map mapping accuracy requirement of a preset proportion, determining model blocks, selecting a coordinate system and a result type, and performing model reconstruction to generate three-dimensional models of various types of ore storage yards.
Further, the method performs comprehensive analysis of error precision through the three-dimensional model precision error, the image control point and the check point error, and judges whether the error precision meets the topographic map drawing precision requirement of a preset proportion, and specifically includes:
judging whether the three-dimensional dense point cloud data meet the aerial survey requirement or not according to the precision error of the three-dimensional model;
if the three-dimensional dense point cloud data meet the aerial survey requirement, taking image control points and check point coordinates obtained by aerial survey as coordinate measurement values, and comparing and analyzing the coordinate measurement values with real coordinate values;
and judging whether the error precision meets the topographic map drawing precision requirement of a preset proportion or not according to the comparison analysis result.
Further, the extracting of the elevation point information of the ore yard based on the three-dimensional models of the various types of ore yards specifically includes:
the actual boundary line coordinates of various ore storage yards are imported into various ore storage yard three-dimensional models to realize the delineation of specific areas;
acquiring all elevation point information of a specific area;
extracting all elevation point information of a specific ore yard from all elevation point information of a specific area according to actual requirements;
and processing all elevation point information of the specific ore yard to obtain actual elevation point information of the ore yard on site.
Further, the analyzing the variation of the data of the reserves of the multi-type ore yard in different periods specifically includes:
and comparing the change conditions of the multi-type ore yard reserve data in different periods with the actual weighing statistic to analyze the reason and the problems of the change of the reserve data.
The second purpose of the invention can be achieved by adopting the following technical scheme:
a dynamic analysis system for multi-type ore yard reserves, the system comprising:
the acquisition unit is used for acquiring images of various ore storage yards of the open-pit mine acquired by aerial photography of the unmanned aerial vehicle;
the analysis unit is used for analyzing the images of various types of ore storage yards by an aerial triangulation analysis method and converting the images of various types of ore storage yards into three-dimensional dense point cloud data of various types of ore storage yards;
the processing unit is used for processing the three-dimensional dense point cloud data of various ore storage yards to obtain three-dimensional models of the various ore storage yards;
the extraction unit is used for extracting elevation point information of the ore yard based on three-dimensional models of various types of ore yards;
and the analysis unit is used for circularly and iteratively extracting the elevation point information of the multi-type ore storage yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore storage yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore storage yard in different periods.
The third purpose of the invention can be achieved by adopting the following technical scheme:
a computer apparatus comprising a processor and a memory for storing a processor executable program, the processor implementing the above-described multi-type ore yard reserve dynamic analysis method when executing the program stored in the memory.
The fourth purpose of the invention can be achieved by adopting the following technical scheme:
a storage medium stores a program which, when executed by a processor, implements the above-described multi-type ore yard reserve dynamic analysis method.
Compared with the prior art, the invention has the following beneficial effects:
1. the method has the characteristics of timeliness, high efficiency and dynamic adjustment, the images of various types of ore storage yards of the open mines are acquired through aerial photography of the unmanned aerial vehicle, the images of various types of ore storage yards are analyzed by using an aerial triangulation analysis method to obtain three-dimensional dense point cloud data of various types of ore storage yards, then the three-dimensional dense point cloud data are processed to obtain three-dimensional models of various types of ore storage yards, and the storage capacity is dynamically analyzed based on the three-dimensional models of various types of ore storage yards to obtain the storage capacity data of various types of ore storage yards; the method comprises the steps of obtaining the data of the reserves of the various ore storage yards in different periods through loop iteration, dynamically analyzing the reserve change in different periods, analyzing the dynamic change relation between ore blending and ore supply of the stope, well feeding back the ore mining and consumption conditions of the stope, laying a foundation for scientifically optimizing the ore mining design of the stope, further formulating a scientific plan for ore blending and ore supply of the stope, obtaining the reserves of the ore storage yards in different grades, and facilitating reasonable formulation of the ore blending and supply indexes of the stope.
2. The invention finds out the difference of plan and implementation according to the change condition of the multi-type ore storage yard storage capacity data in different periods and by combining the actual mining and ore blending execution condition, updates and issues an ore blending instruction, continuously optimizes the proportion of on-site mining and ore storage yard ore blending, checks and corrects the optimized ore blending instruction execution condition, realizes the timely updating and analysis of ore blending capacity, analyzes the actual execution condition of the ore blending instruction, realizes the timely checking and optimization, ensures the reasonable design of ore blending of the open-pit mine storage yard and the multi-type ore storage yard ore supply plan, and finally realizes the fine management of ore blending operation.
3. The unmanned aerial vehicle can be a multi-rotor small unmanned aerial vehicle, and by utilizing the characteristics of high precision, wide coverage range and safe and convenient operation of the multi-rotor small unmanned aerial vehicle, the high-precision three-dimensional model information of the area where various ore storage yards are located can be rapidly, safely and efficiently acquired, the high-precision, high-efficiency and low-cost ore storage yard storage capacity mapping operation can be realized, and the timely updating of ore storage yard ore blending production data in different periods can be possible.
4. The aerial triangulation analysis method performs aerial triangulation analysis calculation on images of various ore storage yards of the open-pit mines acquired by aerial photography of the unmanned aerial vehicle, converts aerial images with geographic information into three-dimensional dense point cloud data of the ore storage yards, and truly reduces three-dimensional topographic information of the ore storage yards, and is efficient in image analysis processing, good in data integrity, real, reliable and good in three-dimensional visualization effect.
5. The invention quickly generates elevation point information of the area by delineating the actual boundary line of the ore storage yard. And combining the elevation point information change conditions of the multi-stage ore yard to further obtain the reserve change conditions in different periods.
6. According to the invention, the three-dimensional model information of the ore storage yard and the mapping results such as the actual topographic map are obtained, the ore supply and distribution data in different periods are dynamically analyzed, the organic unification of the ore mining planning of the open stope and the ore supply of the storage yard is realized, and the ore supply and distribution index plan is continuously optimized and adjusted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a simplified flowchart of a method for dynamically analyzing the reserves of a multi-type ore yard according to embodiment 1 of the present invention.
Fig. 2 is a detailed flowchart of the multi-type ore yard reserve dynamic analysis method according to embodiment 1 of the present invention.
Fig. 3 is a block diagram of a multi-type ore yard reserve dynamic analysis system according to embodiment 2 of the present invention.
Fig. 4 is a block diagram of a computer device according to embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 and fig. 2, the present embodiment provides a method for dynamically analyzing the reserves of a multi-type ore yard, the method comprising the following steps:
s101, acquiring multi-type ore yard images of the open-pit mine acquired by unmanned aerial vehicle aerial photography.
The unmanned aerial vehicle of this embodiment adopts small-size many rotor unmanned aerial vehicle, and small-size many rotor unmanned aerial vehicle can be the four rotors, six rotors, eight rotors carry on the many rotor unmanned aerial vehicle of five camera lenses, also can be other types unmanned aerial vehicle that can realize five camera lenses aerial photograph, and small-size many rotor unmanned aerial vehicle takes photo by plane including on-the-spot reconnaissance and manual aerial photograph, like the selection and the affirmation of control point and check point, unmanned aerial vehicle field survey planning and implement these four processes of field survey, the concrete description is as follows:
(1) on-site reconnaissance and manual aerial photography: the range of confirming the ore yard area of taking photo by plane is looked over to artifical scene to utilize small-size many rotor unmanned aerial vehicle's manual function of shooing, estimate and survey the highest height in the district scope, ensure later stage aerial survey operation safe and reliable.
(2) Selecting and confirming the image control points and the check points: and (4) according to the measuring area range and the topographic relief condition, a point placing plan of the image control point and the check point is made, and a handheld RTK is adopted to carry out on-site point placing, so that the point is well recorded, and the later-stage puncture point identification is facilitated.
(3) Unmanned aerial vehicle field aerial survey planning: selecting a five-way flight mode according to the range of the measuring area, ensuring that the overlapping rate is higher than 75 percent, adjusting camera parameters according to weather conditions, and selecting a shutter to be preferred; and then generating an aerial survey plan, and needing to check again to ensure that the aerial survey plan is reasonable and feasible.
(4) Carrying out field operation aerial survey: and calling a specified aerial survey plan, implementing the aerial survey plan according to the flight instruction, if one rack cannot be completed, calling the in-flight plan after replacing the battery, continuing to implement the aerial survey according to the flight instruction until the operation task is completed completely, and acquiring all the topographic and geomorphic information of the measured area.
The embodiment is through the collection of taking photo by plane of the small-size many rotor unmanned aerial vehicle in (1) - (4) step, can acquire the polymorphic type ore storage yard image that obtains open mine.
S102, analyzing various types of ore yard images through an aerial triangulation analysis method, and converting the various types of ore yard images into various types of three-dimensional dense point cloud data of the ore yard;
specifically, the step S102 is an image matching and air-to-air computing process, which is implemented by professional aerial survey processing software (such as ContextCapture, majiang wisdom diagram, etc.), and includes: importing various types of ore yard images into professional aerial survey processing software, firstly carrying out automatic image matching analysis, judging the integrity of the ore yard images, and ensuring that the calculation requirements of an aerial triangulation analysis method are met; then, the coordinates (image control points and check points) of the control points are imported to carry out primary point puncturing, and each image control point and check point is ensured to puncture at least three continuous ore yard images; then, performing first aerial triangulation analytical method calculation on the ore yard image subjected to the first pricking to obtain a first resolving image; and performing secondary pricking on the first resolved image, and performing secondary aerial triangulation analytical method calculation on the first resolved image subjected to secondary pricking to obtain a second resolved image serving as three-dimensional dense point cloud data of various ore storage yards.
S103, processing the three-dimensional dense point cloud data of the ore storage yards of various types to obtain three-dimensional models of the ore storage yards of various types.
Specifically, the step S103 is an error analysis and model reconstruction process, which includes: judging whether the three-dimensional dense point cloud data of the ore storage yards of various types meet the requirement of model reconstruction or not by checking the three-dimensional dense point cloud data of the ore storage yards of various types; if the three-dimensional dense point cloud data meet the requirement of model reconstruction, carrying out comprehensive analysis on error precision through a three-dimensional model precision error, an image control point error and a check point error, and judging whether the error precision meets the topographic map precision requirement of a preset proportion (1: 500); if not, returning to the step (2) in the step S101, and executing the subsequent steps until the topographic map drawing precision requirement with the preset proportion is met; and if so, determining model blocks (divided into a plurality of block segments), selecting a coordinate system and obtaining types, and reconstructing the model on the basis to generate three-dimensional models of various types of ore storage yards, including DOM, DSM, DEM and the like.
Further, through three-dimensional model precision error, image control point and check point error, carry out error accuracy integrated analysis, judge whether the error accuracy satisfies the topographic map picture accuracy requirement of preset proportion, specifically include:
A. judging whether the three-dimensional dense point cloud data meet the aerial survey requirement or not according to the precision error of the three-dimensional model;
B. and if the three-dimensional dense point cloud data meet the aerial survey requirement, comparing and analyzing the coordinate measured value with the real coordinate value obtained by the handheld RTK by taking the image control point and the check point coordinate obtained by the aerial survey as the coordinate measured value.
C. And judging whether the error precision meets the topographic map drawing precision requirement of a preset proportion or not according to the comparison analysis result.
And S104, extracting elevation point information of the ore yard based on the three-dimensional models of the various ore yards.
Specifically, the step S104 is to extract and process three-dimensional model data of the ore yard, and by importing the three-dimensional model data of the ore yard into integrated professional processing software (such as south Idata software), seamless conversion from a three-dimensional model to a two-dimensional graph is realized by means of powerful three-dimensional and two-dimensional compatible functions of the software, and the method includes: the method comprises the steps that the actual boundary lines of various ore storage yards are measured through a manual handheld RTK, and the actual boundary line coordinates of the various ore storage yards are led into various ore storage yard three-dimensional models to achieve delineation of specific areas; acquiring all elevation point information of a specific area; extracting all elevation point information of a specific ore yard from all elevation point information of a specific area according to actual requirements; all elevation point information of a specific ore storage yard is processed to obtain elevation point information which accords with the actual situation, at the moment, the actual elevation point value manually measured on the spot and the elevation point mapping value generated by the model are compared and analyzed, and whether the topographic map mapping precision requirement of the preset proportion (1: 500) is met is further confirmed.
And S105, circularly and iteratively extracting the elevation point information of the multi-type ore yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore yard in different periods.
Specifically, the step S105 is a dynamic acquisition and analysis of the multi-stage ore yard reserves, including: repeating the steps S101-S105, extracting elevation point information of the ore storage yard in different periods according to the operation requirement of the integrated professional processing software, generating a storage variation chart by utilizing the elevation point information, and dynamically acquiring the storage data (ore supply and distribution execution data) of the multi-type ore storage yard in different periods, for example acquiring the storage data of the multi-type ore storage yard in two periods or acquiring the storage data of the multi-type ore storage yard in three periods or more; and analyzing the change conditions of the multi-type ore yard reserve data in different periods, such as the reserve data change conditions of an ore yard A, an ore yard B and an ore yard C.
Further, the analysis of the change of the data of the reserves of the multi-type ore yard in different periods specifically includes: and comparing the change conditions of the multi-type ore yard reserve data in different periods with the actual weighing statistic to analyze the reason and the problems of the change of the reserve data.
The method for dynamically analyzing the reserves of the multi-type ore yard in the embodiment may further include:
and S106, finding out the difference between plan and implementation according to the change condition of the multi-type ore yard storage volume data in different periods and the actual ore mining and blending execution condition, updating and issuing an ore supply and blending instruction.
S107, continuously optimizing the proportion of on-site mining and ore blending of the ore storage yard, checking and correcting the optimized execution condition of ore supply and blending instructions, ensuring that the ore mining and blending grade meets the requirement of selecting a factory, realizing the comprehensive utilization of high grade and low grade of the multi-type storage yard, and scientifically implementing ore mining and blending planning.
It should be noted that although the method operations of the above-described embodiments are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Rather, the depicted steps may change the order of execution. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
Example 2:
as shown in fig. 3, the present embodiment provides a dynamic analysis system for multi-type ore yard reserves, the system includes an obtaining unit 301, an analyzing unit 302, a processing unit 303, an extracting unit 304, and an analyzing unit 305, and the specific functions of each unit are as follows:
the acquisition unit 301 is used for acquiring images of various ore storage yards of the open-pit mine acquired by the unmanned aerial vehicle through aerial photography.
The analyzing unit 302 is configured to analyze the images of the various types of ore storage yards by an aerial triangulation method, and convert the images of the various types of ore storage yards into three-dimensional dense point cloud data of the various types of ore storage yards.
The processing unit 303 is configured to process the three-dimensional dense point cloud data of the various types of ore storage yards to obtain three-dimensional models of the various types of ore storage yards.
And the extraction unit 304 is used for extracting elevation point information of the ore yard based on the three-dimensional models of the various types of ore yards.
The analyzing unit 305 is configured to extract elevation point information of the multi-type ore yard in different periods in a loop iteration manner, perform dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyze the change situation of the reserve data of the multi-type ore yard in different periods.
The specific implementation of each unit in this embodiment may refer to embodiment 1, which is not described herein any more; it should be noted that the system provided in this embodiment is only illustrated by the division of the functional units, and in practical applications, the above functions may be distributed by different functional units according to needs, that is, the internal structure is divided into different functional modules to complete all or part of the functions described above.
Example 3:
the present embodiment provides a computer device, which may be a computer, as shown in fig. 4, and includes a processor 402, a memory, an input device 403, a display 404, and a network interface 405 connected by a system bus 401, where the processor is used to provide computing and control capabilities, the memory includes a nonvolatile storage medium 406 and an internal memory 407, the nonvolatile storage medium 406 stores an operating system, a computer program, and a database, the internal memory 407 provides an environment for an operating system and a computer program in the nonvolatile storage medium to run, and when the processor 402 executes the computer program stored in the memory, the dynamic analysis method for the multi-type ore yard storage capacity of the foregoing embodiment 1 is implemented as follows:
acquiring images of various ore storage yards of open mines acquired by unmanned aerial vehicle aerial photography;
analyzing various types of ore yard images by an aerial triangulation analysis method, and converting the various types of ore yard images into various types of three-dimensional dense point cloud data of the ore yard;
processing three-dimensional dense point cloud data of various types of ore storage yards to obtain three-dimensional models of the various types of ore storage yards;
extracting elevation point information of the ore yard based on three-dimensional models of the ore yards of various types;
and circularly and iteratively extracting the elevation point information of the multi-type ore yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore yard in different periods.
Further, the method may further include:
according to the change conditions of the multi-type ore storage yard reserve data at different periods, the difference between plan and implementation is found out by combining the actual ore mining and blending execution conditions, and the ore supply and blending instruction is updated and issued;
and continuously optimizing the proportion of on-site mining and ore blending of the ore storage yard, and checking and correcting the execution condition of the optimized ore supply and blending instruction.
Example 4:
the present embodiment provides a storage medium, which is a computer-readable storage medium, and stores a computer program, and when the computer program is executed by a processor, the method for dynamically analyzing the multi-type ore yard reserves of the above embodiment 1 is implemented as follows:
acquiring images of various ore storage yards of open mines acquired by unmanned aerial vehicle aerial photography;
analyzing various types of ore yard images by an aerial triangulation analysis method, and converting the various types of ore yard images into various types of three-dimensional dense point cloud data of the ore yard;
processing three-dimensional dense point cloud data of various types of ore storage yards to obtain three-dimensional models of the various types of ore storage yards;
extracting elevation point information of the ore yard based on three-dimensional models of the ore yards of various types;
and circularly and iteratively extracting the elevation point information of the multi-type ore yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore yard in different periods.
Further, the method may further include:
according to the change conditions of the multi-type ore storage yard reserve data at different periods, the difference between plan and implementation is found out by combining the actual ore mining and blending execution conditions, and the ore supply and blending instruction is updated and issued;
and continuously optimizing the proportion of on-site mining and ore blending of the ore storage yard, and checking and correcting the execution condition of the optimized ore supply and blending instruction.
It should be noted that the computer readable storage medium of the present embodiment may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In conclusion, the method has the characteristics of timeliness, high efficiency and dynamic adjustment, various types of ore yard images of the open mine are acquired through aerial photography by the unmanned aerial vehicle, various types of ore yard images are analyzed by an aerial triangulation analysis method to obtain various types of three-dimensional dense point cloud data of the ore yard, then various types of three-dimensional models of the ore yard are obtained through processing, and the storage capacity is dynamically analyzed based on the various types of three-dimensional models of the ore yard to obtain various types of storage capacity data of the ore yard; the method comprises the steps of obtaining the data of the reserves of the various ore storage yards in different periods through loop iteration, dynamically analyzing the reserve change in different periods, analyzing the dynamic change relation between ore blending and ore supply of the stope, well feeding back the ore mining and consumption conditions of the stope, laying a foundation for scientifically optimizing the ore mining design of the stope, further formulating a scientific plan for ore blending and ore supply of the stope, obtaining the reserves of the ore storage yards in different grades, and facilitating reasonable formulation of the ore blending and supply indexes of the stope.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the scope of the present invention.
Claims (10)
1. A dynamic analysis method for the reserves of a multi-type ore storage yard is characterized by comprising the following steps:
acquiring images of various ore storage yards of open mines acquired by unmanned aerial vehicle aerial photography;
analyzing various types of ore yard images by an aerial triangulation analysis method, and converting the various types of ore yard images into various types of three-dimensional dense point cloud data of the ore yard;
processing three-dimensional dense point cloud data of various types of ore storage yards to obtain three-dimensional models of the various types of ore storage yards;
extracting elevation point information of the ore yard based on three-dimensional models of the ore yards of various types;
and circularly and iteratively extracting the elevation point information of the multi-type ore yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore yard in different periods.
2. The method of dynamically analyzing multi-type ore yard reserve of claim 1, further comprising:
according to the change conditions of the multi-type ore storage yard reserve data at different periods, the difference between plan and implementation is found out by combining the actual ore mining and blending execution conditions, and the ore supply and blending instruction is updated and issued;
and continuously optimizing the proportion of on-site mining and ore blending of the ore storage yard, and checking and correcting the execution condition of the optimized ore supply and blending instruction.
3. The method for dynamically analyzing the reserves of the multi-type ore yard according to any one of claims 1-2, wherein the analyzing the images of the various types of ore yards by the aerial triangulation method to convert the images of the various types of ore yards into three-dimensional dense point cloud data of the various types of ore yards specifically comprises:
carrying out automatic image matching analysis on various types of ore yard images, judging the integrity of the ore yard images and ensuring that the calculation requirements of an aerial triangulation analysis method are met;
importing image control points and check point coordinates to perform primary point puncturing, and ensuring that each image control point and check point punctures at least three continuous ore yard images;
performing first aerial triangulation analytical method calculation on the ore yard image subjected to the first pricking to obtain a first resolving image;
and performing secondary pricking on the first resolved image, and performing secondary aerial triangulation analytical method calculation on the first resolved image subjected to secondary pricking to obtain a second resolved image serving as three-dimensional dense point cloud data of various ore storage yards.
4. The method for dynamically analyzing the reserves of the multi-type ore yard according to any one of claims 1-2, wherein the processing the three-dimensional dense point cloud data of the various types of ore yards to obtain the three-dimensional models of the various types of ore yards specifically comprises:
judging whether the three-dimensional dense point cloud data of various types of ore storage yards meet the requirement of model reconstruction or not;
if the three-dimensional dense point cloud data meet the requirement of model reconstruction, carrying out comprehensive analysis on error precision through a three-dimensional model precision error, an image control point error and a check point error, and judging whether the error precision meets the topographic map mapping precision requirement of a preset proportion;
and if the three-dimensional dense point cloud data meets the topographic map mapping accuracy requirement of a preset proportion, determining model blocks, selecting a coordinate system and a result type, and performing model reconstruction to generate three-dimensional models of various types of ore storage yards.
5. The method according to claim 4, wherein the step of performing comprehensive analysis of error accuracy through three-dimensional model accuracy errors, image control point errors and inspection point errors to determine whether the error accuracy meets the topographic map accuracy requirement of a preset proportion comprises:
judging whether the three-dimensional dense point cloud data meet the aerial survey requirement or not according to the precision error of the three-dimensional model;
if the three-dimensional dense point cloud data meet the aerial survey requirement, taking image control points and check point coordinates obtained by aerial survey as coordinate measurement values, and comparing and analyzing the coordinate measurement values with real coordinate values;
and judging whether the error precision meets the topographic map drawing precision requirement of a preset proportion or not according to the comparison analysis result.
6. The method for dynamically analyzing the reserves of the multi-type ore yard according to any one of claims 1 to 2, wherein the extracting the elevation point information of the ore yard based on the three-dimensional model of the multi-type ore yard specifically comprises:
the actual boundary line coordinates of various ore storage yards are imported into various ore storage yard three-dimensional models to realize the delineation of specific areas;
acquiring all elevation point information of a specific area;
extracting all elevation point information of a specific ore yard from all elevation point information of a specific area according to actual requirements;
and processing all elevation point information of the specific ore yard to obtain actual elevation point information of the ore yard on site.
7. The method according to any one of claims 1-2, wherein the analyzing the variation of the multi-type ore yard reserve data at different periods comprises:
and comparing the change conditions of the multi-type ore yard reserve data in different periods with the actual weighing statistic to analyze the reason and the problems of the change of the reserve data.
8. A dynamic analysis system for multi-type ore yard reserve, the system comprising:
the acquisition unit is used for acquiring images of various ore storage yards of the open-pit mine acquired by aerial photography of the unmanned aerial vehicle;
the analysis unit is used for analyzing the images of various types of ore storage yards by an aerial triangulation analysis method and converting the images of various types of ore storage yards into three-dimensional dense point cloud data of various types of ore storage yards;
the processing unit is used for processing the three-dimensional dense point cloud data of various ore storage yards to obtain three-dimensional models of the various ore storage yards;
the extraction unit is used for extracting elevation point information of the ore yard based on three-dimensional models of various types of ore yards;
and the analysis unit is used for circularly and iteratively extracting the elevation point information of the multi-type ore storage yard in different periods, carrying out dynamic reserve analysis to obtain the reserve data of the multi-type ore storage yard in different periods, and analyzing the change condition of the reserve data of the multi-type ore storage yard in different periods.
9. A computer apparatus comprising a processor and a memory for storing a processor-executable program, wherein the processor, when executing the program stored in the memory, implements the method of dynamically analyzing multi-type ore yard reserve of any of claims 1-7.
10. A storage medium storing a program, wherein the program, when executed by a processor, implements the multi-type ore yard reserve dynamic analysis method of any one of claims 1 to 7.
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