Geological exploration positioning method and system based on remote sensing technology

Abstract

The present invention relates to the field of geological exploration technology, and specifically to a geological exploration positioning method and system based on remote sensing technology, the method comprising: using machinery and equipment to perform random depth sampling of multiple blocks in a geological area to be judged, obtaining a spectrum of each block and a corresponding sampling depth; analyzing the spectrum of each block in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be judged; and performing geological exploration positioning according to the regional distribution in the geological area to be judged. In the above manner, by analyzing the depth of the iron ore deposit density in the current area and analyzing the iron ore deposit density performance in each area, selective regional sampling is performed to reduce costs, making geological exploration positioning more rapid and accurate, and also improving the efficiency of geological exploration.

Description

Technical Field

[0001] The present invention relates to the field of geological exploration technology, and in particular to a geological exploration positioning method and system based on remote sensing technology. Background Art

[0002] With the rapid development of the domestic economy, the demand for mineral resources is increasing day by day. In order to maintain the balance between supply and demand of mineral resources, the exploration of geological information is becoming increasingly important. Remote sensing technology is based on the principle that any object will show different characteristics in the absorption, reflection and radiation of electromagnetic waves. It detects and identifies targets by sensing electromagnetic waves, visible light, and infrared rays reflected or radiated by the target at a long distance without direct contact with the object. It realizes long-distance observation of the earth in the air, obtains information sources of ground objects, realizes interpretation of ground objects, and analyzes relevant properties of ground objects. In fact, passive remote sensing is commonly used. Passive remote sensing is a remote sensing system that uses sensors such as radiometers, cameras, and spectrometers to obtain electromagnetic wave information emitted by the target object itself or reflected from natural radiation sources.

[0003] Due to the different absorption characteristics of minerals, the waveform characteristics they exhibit are also different. The spectral characteristics of minerals are formed by the reflection bands produced by various ions, water, and chemical groups. These ion groups have the characteristics of electronic transitions or molecular vibrations. General geological exploration often requires relevant personnel to conduct field exploration, but since the locations to be explored are generally remote and wide, if the areas are sampled and analyzed one by one, it will consume a lot of manpower and material resources and the cost will be too high. Summary of the invention

[0004] In order to solve the technical problems that the existing geological exploration sampling and analysis consumes a lot of manpower and material resources and is too costly, the purpose of the present invention is to provide a geological exploration positioning method and system based on remote sensing technology. The technical solutions adopted are as follows:

[0005] The technical solution of the present invention relates to a geological exploration and positioning method based on remote sensing technology, comprising: using machinery and equipment to perform multiple block sampling at random depths in a geological area to be judged, and obtaining a spectrum map of each block and a corresponding sampling depth; analyzing the spectrum map of each block in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be judged; and performing geological exploration and positioning according to the regional distribution in the geological area to be judged.

[0006] Optionally, the method of using machine equipment to perform multiple block sampling at random depths on the geological area to be judged to obtain a spectral map of each block and a corresponding sampling depth, includes: dividing the geological area to be judged into multiple first areas of a first preset size; for any first area, using machine equipment to uniformly sample 9 blocks at random depths in the first area, and obtaining a spectral map of each sampled block and a corresponding sampling depth.

[0007] Optionally, the spectral map of each object block is analyzed in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be judged, including: taking the first area located in the center of the geological area to be judged as the initial area, analyzing the information in the spectral map of each object block to obtain the geological exploration depth of the metal deposits in the geological area to be judged; sampling and analyzing the geological area to be judged based on the geological exploration depth in combination with the spectral map of each object block to determine the metal mine boundary of the geological area to be judged; sampling the remaining area of ​​the geological area to be judged according to the metal mine boundary and analyzing its distribution.

[0008] Optionally, the metal is iron metal, and the central area of ​​the geological area to be determined is used as the initial area, and the information in the spectrum of each object block is analyzed to obtain the geological exploration depth of the metal deposit in the geological area to be determined, including: taking the first area located in the center of the geological area to be determined as the initial area, determining the initial acquisition area including the first peak and the second peak on the spectrum, the first peak is a peak representing the deepest depth between 1000 and 1100 nm, and the second peak is a peak representing the shallowest depth between 600 and 900 nm; according to the size of the first peak and the second peak and a first relationship between metal ion concentration and depth obtained by the corresponding sampling depth; spectral analysis is performed on the spectra of the objects collected at the deepest, shallowest and middle depths respectively to obtain a second relationship between metal ion concentration and depth related to the spectra collected at the deepest and middle depths and a third relationship between metal ion concentration and depth related to the spectra collected at the shallowest and middle depths; the depth at which the metal ion concentration is larger at the initial point is obtained according to the first relationship, the second relationship and the third relationship, and the geological exploration depth of the iron ore deposit in the geological area to be judged is determined in combination with the clustered distribution characteristics of the iron ore deposit.

[0009] Optionally, taking the first area located at the center of the geological area to be judged as the initial area, and determining the initial acquisition area including the first peak and the second peak on the spectrum graph, includes: taking the first area located at the center of the geological area to be judged as the initial area, and judging whether the spectrum graph corresponding to the initial area includes the first peak and the second peak; if so, taking the initial area as the initial acquisition area; if the first peak and / or the second peak does not exist on the spectrum graph corresponding to the initial area, selecting the first area around the initial area for sampling analysis and judgment, until the first area including the first peak and the second peak on the spectrum graph is determined, and taking the determined first area as the initial acquisition area.

[0010] Optionally, obtaining the depth at which the metal ion concentration is higher at the initial point according to the first relationship, the second relationship and the third relationship includes: determining a changing pattern of ion concentration with depth according to the first relationship, the second relationship and the third relationship; and obtaining the depth at which the metal ion concentration is higher at the initial point according to the changing pattern.

[0011] Optionally, the sampling and analysis of the geological area to be judged based on the geological exploration depth combined with the spectral map of each object block to determine the metal ore boundary of the geological area to be judged includes: calculating the iron metal ion concentration of each first area; taking the initial acquisition area as the starting point, if the iron metal ion concentration at the starting point is greater than the first reference threshold, selecting the third first area of ​​the same size in the current direction for the next sampling, if the iron metal ion concentration calculated in the next step is less than the second reference threshold, retreating one first area for sampling; if the iron metal ion concentration at the starting point is less than the second reference threshold, calculating in the next first area adjacent to it until the first position point where the iron metal ion concentration is greater than the second reference threshold is obtained; if the iron metal ion concentration at the starting point is greater than or equal to the second reference threshold and less than or equal to the first reference threshold, selecting the next first area in the current direction for sampling until the iron metal ion concentration calculated in two consecutive first areas is less than the second reference threshold, thereby characterizing the boundary of the iron ore deposit; performing the same calculation in each direction of the initial acquisition area in turn to identify the boundary of the iron ore deposit in the current area.

[0012] Optionally, the calculation of the iron metal ion concentration of each first region includes: calculating the iron metal ion concentration of each first region Ion concentration performance and Ion concentration performance; according to the Ion concentration performance and The ion concentration represents the calculated iron metal ion concentration of each first region.

[0013] Optionally, sampling the remaining area of ​​the geological area to be judged according to the metal mine boundary and analyzing its distribution includes: sampling the remaining area of ​​the geological area to be judged as a second area of ​​a second preset size according to the metal mine boundary; separately sampling 9 position points in each second area and calculating their iron metal ion concentrations; stopping the calculation if there are two second areas in any direction whose iron metal ion concentrations are less than a second reference threshold; if the iron metal ion concentration of any second area is greater than or equal to the second reference threshold, sampling and analyzing the second area.

[0014] The technical solution of the present invention also relates to a geological exploration and positioning system based on remote sensing technology, comprising: a spectral sampling unit, used to use machinery and equipment to perform multiple block sampling at random depths in the geological area to be judged, and obtain the spectral map of each block and the corresponding sampling depth; a regional distribution acquisition unit, used to analyze the spectral map of each block in combination with the sampling depth, and determine the regional distribution of metal mines in the geological area to be judged; a geological exploration and positioning unit, used to perform geological exploration and positioning according to the regional distribution in the geological area to be judged.

[0015] The present invention has the following beneficial effects:

[0016] The present invention provides a geological exploration and positioning method and system based on remote sensing technology, which utilizes machinery and equipment to perform multiple random depth block sampling on a geological area to be judged, and obtains a spectrum map of each block and a corresponding sampling depth; analyzes the spectrum map of each block in combination with the sampling depth, and determines the regional distribution of metal mines in the geological area to be judged; performs geological exploration and positioning based on the regional distribution in the geological area to be judged, analyzes the depth of the highest density of iron ore deposits in the current area, and analyzes the density performance of iron ore deposits in various areas, thereby performing selective regional sampling, reducing costs, making geological exploration and positioning faster and more accurate, and improving the efficiency of geological exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a flow chart of a geological exploration and positioning method based on remote sensing technology provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a geological area to be determined provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of sampling of a central area in a geological area to be determined provided by an embodiment of the present invention;

[0021] Figure 4 for Figure 1 A detailed flow chart of step S12 in the geological exploration and positioning method based on remote sensing technology;

[0022] Figure 5 A schematic diagram of the structure of a geological exploration and positioning system based on remote sensing technology provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of a geological exploration positioning method and system based on remote sensing technology proposed by the present invention, its specific implementation method, structure, features and effects, in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0024] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0025] The following is a detailed description of a method and system for geological exploration and positioning based on remote sensing technology provided by the present invention in conjunction with the accompanying drawings.

[0026] See also Figure 1 , which shows a schematic flow chart of a geological exploration and positioning method based on remote sensing technology provided by an embodiment of the present invention, which at least includes the following steps:

[0027] S11: Use machinery and equipment to perform multiple block sampling at random depths in the geological area to be judged, and obtain a spectrum map of each block and the corresponding sampling depth.

[0028] The present invention needs to use the blocks collected on site for spectral analysis. The judgment of mining areas in geology is often carried out on a large area, but if blocks are collected from these areas one by one for spectral analysis, it will cause a large waste of resources and high costs such as time cost. Therefore, the embodiment of the present invention selectively collects samples in the target judgment area. Set the area to be judged as The size of the area (Note: This is a setting. The judgment area can also be an ellipse or other shapes. For ease of calculation, we set it to a rectangle). First, we calculate the center of the area The area is used to collect blocks. Represents meters, and 9 objects are evenly collected in this area, such as Figure 2 shown.

[0029] In step S11, the geological area to be determined is optionally divided into a plurality of first areas of a first preset size; for any first area, nine blocks of random depth in the first area are uniformly sampled by machine equipment to obtain the spectrum of each block obtained by sampling and the corresponding sampling depth. The first preset size can be set as needed, for example , .like Figure 2 As shown, the geological area to be judged is set as The size of the regional center The first row of blocks is collected. Figure 3 , in size Nine objects are uniformly collected in the first area. It should be noted that the geological area can also be an ellipse or other shapes, but it is set to a rectangle for the convenience of calculation.

[0030] Since the performance of the objects collected at different depths during the sampling process may be different during spectral analysis, random depth sampling is set for each sampling. Geophysical exploration methods such as geological radar and electrical exploration are used to detect the underground to understand the distribution of underground lithology, structure, water level, etc., to provide a basis for determining the sampling depth. In combination with local regulations, the range of random depth sampling is set as ,in, The upper and lower depth limits of random sampling for geological exploration are preset respectively. The blocks are sampled and calibrated as follows:

[0031]

[0032] in, For the A set of collection points obtained by sampling, Indicates During the sampling process Blocks, , is the total number of sampled blocks. During the sampling process The sampling depth of blocks . This completes the first sampling in the geological area to be judged.

[0033] S12: Analyze the spectrum of each of the blocks in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be determined.

[0034] In the process of geological exploration, the spectrum of the collected objects is mainly used for analysis. The peak performance in different bands can determine the mineral distribution performance of the current collection point to a certain extent. The spectrum of a certain object represents the absorption spectrum corresponding to the object at a certain depth of a certain collection point. When the peak in a certain band is large, it means that the concentration of metal ions is large. Since the iron ore deposits are distributed underground, it is not known at which depth the iron ore deposits are better distributed. Therefore, sampling analysis is first carried out to determine the more suitable sampling depth. In this way, sampling is carried out in all directions at this depth, and the density performance of iron ore deposits in various areas is obtained, which helps to carry out selective sampling in subsequent sampling areas, thereby completing geological exploration positioning.

[0035] In step S12, Figure 4 As shown, including:

[0036] S121: Taking the first area located in the center of the geological area to be determined as the initial area, analyzing the information in the spectrum map of each block to obtain the geological exploration depth of the metal deposit in the geological area to be determined.

[0037] In the process of geological exploration and positioning, the spectral performance of the collected objects under the spectrometer is used for analysis. For objects collected at different locations (including depth) in the area, different mineral elements have different performances on the spectrum, which is specifically manifested in different bands of peaks on the spectrum image. In addition, since the objects collected at different locations contain different concentrations of metal ions, the spectral performance of the objects is also affected to a certain extent. The analysis is first performed on the center of the geological area to be determined. The performance of each band on the spectral image of the object block collected within the first area, the present invention is mainly used to realize the exploration and positioning of iron ore deposits, and the spectral characteristics of iron-containing minerals mainly depend on the valence state of these iron ions and the water content of the iron-containing minerals.

[0038] In the embodiment of the present invention, a spectrometer is used to obtain a spectral image of the object collected for the first time, and the spectral image is analyzed. The iron content of the collected object is analyzed, such as A common strong and broad band will be produced between 1000 and 1100 nm, and The spectrum is relatively weak, and a strong characteristic peak will be produced between 600 and 900 nm.

[0039]

[0040]

[0041] in, The spectral range is 600~900nm. The spectrum range is 1000-1100nm. Due to the different set collection positions, the concentration of metal ions contained in the collected objects may vary to a certain extent, so that the band where the peak representing iron ions in the spectrum is located may be different from the normal one.

[0042] First, the relationship between the metal ion concentration and the depth in the current collection point is analyzed. In step S121, first, the first area located in the center of the geological area to be judged is taken as the initial area, and the initial collection area including the first peak and the second peak on the spectrum is determined, the first peak is the peak representing the deepest depth between 1000 and 1100 nm, and the second peak is the peak representing the shallowest depth between 600 and 900 nm. Optionally, the first area located in the center of the geological area to be judged is taken as the initial area, and it is determined whether the spectrum corresponding to the initial area includes the first peak and the second peak; if so, the initial area is used as the initial collection area; if the first peak and / or the second peak does not exist on the spectrum corresponding to the initial area, the first area around the initial area is selected for sampling analysis and judgment until the first area including the first peak and the second peak on the spectrum is determined, and the determined first area is used as the initial collection area. That is, if the peak does not exist on the sample spectrum image in the initial area, the surrounding area is selected for sampling and analysis, and the first area with the peak is obtained as the initial acquisition area for judgment.

[0043] Then, a first relationship between metal ion concentration and depth is obtained according to the size of the first wave peak and the second wave peak and the corresponding sampling depth. The size of the most recent peak calculate:

[0044]

[0045] in, To show the first relationship between metal ion concentration and depth, that is, the change of iron ion concentration with increasing depth, The peak on the object spectrum graph representing the deepest depth of the acquisition point; The peak on the object spectrum graph represents the shallowest depth of the acquisition point. is the depth difference, depth difference .

[0046] The above formula mainly uses the peak performance of the spectrum graph collected at the deepest and shallowest points for analysis. When the calculation result is positive, it means that the concentration of metal ions carried by the collected object increases with the increase of depth, or it may decrease first and then increase. When the calculation result is negative, it is possible that the concentration of metal ions carried by the object decreases with the increase of depth; it may also increase first and then decrease. Here, two peaks are calculated separately, and a formula is shared; and the distance The band where the nearest peak is located is There is also a limit on the distance difference between them. For example, the limit is set to 50, that is, the peak exists at Yes. The following restrictions apply to the closest distances.

[0047] Then, the spectra of the blocks collected at the deepest, shallowest and middle depths are analyzed to obtain the second relationship between the metal ion concentration and depth related to the spectra collected at the deepest and middle depths and the third relationship between the metal ion concentration and depth related to the spectra collected at the shallowest and middle depths. Specifically, the blocks collected at the deepest, shallowest and middle depths are selected for spectral analysis to calculate:

[0048]

[0049]

[0050] In the formula, To express the second relationship between metal ion concentration and depth, To express the third relationship between metal ion concentration and depth, Indicates the distance on the object spectrum collected between the deepest and middle depths The size of the most recent peak. Indicates the distance on the object spectrum collected between the shallowest point and the middle of the middle depth The recent peak size, The peak size The sampling depth and peak size corresponding to The depth difference of the corresponding sampling depth, The peak size The sampling depth and peak size corresponding to The depth difference of the corresponding sampling depth.

[0051] Then, based on the first relationship, the second relationship, and the third relationship, the depth at which the metal ion concentration is relatively high at the initial point is obtained, and the geological exploration depth of the iron ore deposits in the geological area to be determined is determined in combination with the clustered distribution characteristics of the iron ore deposits. Optionally, the variation law of ion concentration with depth is determined based on the first relationship, the second relationship, and the third relationship; the depth at which the metal ion concentration is relatively high at the initial point is obtained based on the variation law. After obtaining the depth at which the metal ion concentration is relatively high, in the actual sampling process, sampling is not performed at a certain depth, and sampling needs to be performed near the depth at which the metal ion concentration is relatively high, that is, the sampling depth interval. In an embodiment of the present invention, according to the calculated If the size , indicating that the concentration of metal ions carried by the block increases with depth. , indicating that the concentration of metal ions carried by the block decreases with the decrease of depth. , indicating that the concentration of metal ions carried by the block first decreases and then increases with increasing depth. , indicating that the concentration of metal ions carried by the block increases first and then decreases with increasing depth. According to the above-mentioned change law of the metal ion concentration in the initial collection area with the change of depth, the depth of the initial collection area with the highest metal ion concentration can be obtained. Iron ore deposits generally present a clustered distribution. According to the performance of metal ions in the initial collection area, the approximate depth of the subsequent collection area is determined. . Approximate depth The sampling depth interval can be near the depth with the largest metal ion concentration. Specifically, the depth with the largest metal ion concentration is , approximate depth Can be , is the preset depth range. So far, the approximate depth of the subsequent sampling area is obtained.

[0052] S122: Based on the geological exploration depth and the spectral map of each object block, sampling and analysis are performed on the geological area to be determined to determine the metal ore boundary of the geological area to be determined.

[0053] In the above step S121, the approximate depth of sampling in the subsequent geological area to be judged is obtained. Since the area of ​​the subsequent geological area to be judged is still large, if each The first area is large, and the cost is high. Iron ore deposits are generally distributed in clusters. Based on this characteristic, the subsequent geological areas to be judged can be sampled selectively. By analyzing the initial collection area in four directions The size of the first area is determined, and the first area for sampling in the next step is determined according to the performance of the object block spectrum graph collected in each first area, thereby avoiding the calculation of some unnecessary areas to a certain extent and reducing the cost.

[0054] In step S122, optionally, the iron metal ion concentration of each first region is first calculated. Specifically, the iron metal ion concentration of each first region is calculated. Ion concentration performance and Ion concentration performance. The first region is taken as the starting point, and the metal ion concentration performance of each first region is calculated:

[0055]

[0056] In the formula, Indicates of sampled objects Concentration performance, Indicates The distance on the spectrum of the sampled object The absorptivity of the nearest peak in the band; express The band corresponding to the peak of the wave, express The area of ​​the band corresponding to the peak; express The band corresponding to the peak is The area on the band.

[0057]

[0058] In the formula, Indicates of sampled objects Concentration performance, Indicates The distance on the spectrum of the sampled object The absorptivity of the nearest peak in the band; express The band corresponding to the peak apex. express The area of ​​the band corresponding to the peak; express The band corresponding to the peak is The area on the band.

[0059] Afterwards, according to the Ion concentration performance and The ion concentration represents the calculated iron metal ion concentration of each first region.

[0060]

[0061] In the formula, represents the metal ion concentration of the kth first region.

[0062] The above formula mainly uses the peak performance on the object spectrum ; and band conditions and area For iron ore deposits, the collected block spectrum is and They should be in their respective bands. The larger the area of ​​the collected objects in the corresponding band, the closer they are to normal performance. Moreover, the greater the density of the iron ore deposit in this first area, the greater the metal ion concentration, and the larger the peak in the spectrum.

[0063] In the embodiment of the present invention, a first reference threshold is set , when the calculated metal ion concentration When , it means that the density of iron ore deposits is relatively high here; set the second reference threshold , when the calculated When , it means that the density of the iron ore deposit here is moderate; when the calculated , indicating that there are fewer iron ore deposits here.

[0064] Then, taking the initial acquisition area as the starting point, if the iron metal ion concentration at the starting point is greater than the first reference threshold, the third first area of ​​the same size in the current direction is selected for the next sampling, and if the iron metal ion concentration calculated in the next step is less than the second reference threshold, sampling is performed by retreating one first area. If the iron metal ion concentration at the starting point is less than the second reference threshold, calculation is performed in the next first area adjacent to it until the first position point where the iron metal ion concentration is greater than the second reference threshold is obtained. If the iron metal ion concentration at the starting point is greater than or equal to the second reference threshold and less than or equal to the first reference threshold, the next first area in the current direction is selected for sampling until there are two consecutive first areas where the iron metal ion concentration calculated is less than the second reference threshold, which characterizes the boundary of the iron ore deposit; the same calculation is performed in each direction of the initial acquisition area in turn to identify the boundary of the iron ore deposit in the current area.

[0065] In the embodiment of the present invention, firstly, it is necessary to obtain the first When the initial position , then calculate in the next first area immediately adjacent to it until the first When the initial position , then select The first area is in The four directions refer to the four directions of the plane at the same depth. Different subsequent first area acquisition methods are adopted according to different results. When the density of iron ore deposits in this direction is high, you can choose the third The first area of ​​the next step is sampled. If the next step is calculated , then go back to the first area for sampling. The density of iron ore deposits in this direction is average. Select the next The first area of ​​​​the sample is sampled. Until there are two consecutive calculated , indicating that this is the boundary of the iron ore deposit. The same calculation is performed in each direction of the initial acquisition area to identify the boundary of the iron ore deposit in the current area. So far, the boundary of the iron ore deposit in the current area has been obtained.

[0066] S123: sampling the remaining area of ​​the to-be-determined geological area according to the metal mine boundary and analyzing its distribution.

[0067] In the process of step S122, the boundary of the iron ore deposit in the current area is obtained. However, the iron ore deposit may also have other distribution situations, so we also need to estimate and calculate other areas outside the iron ore deposit. In this case, there is no need to conduct detailed sampling observations on these areas, and sampling and analysis can be performed on the more sparsely distributed locations in the larger area.

[0068] In step S123, optionally, the remaining area of ​​the geological area to be judged is sampled with a second area of ​​a second preset size according to the metal mine boundary; 9 position points are sampled separately for each second area and the iron metal ion concentration is calculated; if there are two second areas with iron metal ion concentrations less than the second reference threshold in any direction, the calculation is stopped; if the iron metal ion concentration of any second area is greater than or equal to the second reference threshold, the second area is sampled and analyzed. Sample a second area, sample its 9 position points separately, and calculate their corresponding When there are two The second region , then no subsequent calculation will be performed; when a second region exists , then the sampling analysis of the above steps is performed on the second area. Thus, the distribution of iron ore deposits in the geological area to be determined can be obtained.

[0069] S13: Perform geological exploration and positioning according to the regional distribution in the geological area to be determined.

[0070] The distribution of iron ore deposits in the geological area to be determined is obtained through step S12. The distribution is used to mark the image of the geological area to be determined, so as to help relevant staff to have a basic understanding of the geological conditions of the area, thereby completing geological exploration and positioning.

[0071] The present invention is mainly aimed at the geological exploration process of large areas. For the staff, if a large area is carefully explored, the cost is high. The embodiment of the present invention determines the distribution depth of the iron ore deposits in the geological area to be judged, and combines the density performance of the iron ore deposits in each area to conduct selective sampling and exploration, thereby determining the distribution range of the iron ore deposits. By analyzing the performance of the iron ore deposits in a certain area, a more suitable sampling depth is determined. Then, the density of the iron ore deposits in each area is analyzed, and subsequent regional sampling and analysis are carried out based on this, which reduces the number of regional sampling times and helps the staff complete geological exploration and positioning.

[0072] The embodiment of the present invention uses machinery and equipment to perform multiple block sampling at random depths in the geological area to be judged, and obtains the spectrum of each block and the corresponding sampling depth; analyzes the spectrum of each block in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be judged; performs geological exploration and positioning according to the regional distribution in the geological area to be judged, analyzes the depth of the highest density of iron ore deposits in the current area, and analyzes the density of iron ore deposits in various areas, so as to use machinery and equipment to perform selective regional sampling, without the need to sample the geological area to be analyzed in sequence, thereby ensuring the accuracy of the exploration results while reducing the number of sampling times, which can reduce related costs, and also makes geological exploration and positioning more rapid and accurate, thereby improving the efficiency of geological exploration.

[0073] Based on the same concept, the embodiment of the present invention also provides a geological exploration positioning system based on remote sensing technology, such as Figure 5 As shown, it includes: a spectral sampling unit, a regional distribution acquisition unit and a geological exploration positioning unit.

[0074] A spectral sampling unit is used to use a machine to perform multiple random depth sampling of blocks in the geological area to be judged, and obtain a spectral map of each block and a corresponding sampling depth;

[0075] A regional distribution acquisition unit, used to analyze the spectrum of each block in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be determined;

[0076] The geological exploration and positioning unit is used to perform geological exploration and positioning according to the regional distribution situation in the geological area to be determined.

[0077] For the convenience of description, the above system is described by dividing it into various modules according to its functions. Of course, when implementing the embodiment of the present invention, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0078] The system of the above embodiment is applied to the corresponding method in the above embodiment, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0079] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0080] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A geological exploration positioning method based on remote sensing technology, characterized in that: The method comprises: Use machines and equipment to sample blocks at random depths multiple times in the geological area to be judged, and obtain the spectrum of each block and the corresponding sampling depth; Analyzing the spectrum of each of the blocks in combination with the sampling depth to determine the regional distribution of metal ores in the geological area to be determined; Perform geological exploration and positioning according to the regional distribution in the geological area to be determined; The method of using a machine to perform random depth sampling of multiple blocks in the geological area to be judged, and obtaining a spectrum of each block and a corresponding sampling depth, includes: Dividing the geological area to be determined into a plurality of first areas of a first preset size; For any first area, use a machine to uniformly collect 9 blocks of random depth in the first area, and obtain a spectrum of each block obtained by sampling and a corresponding sampling depth; The analyzing the spectrum of each block in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be determined includes: Taking the first area located at the center of the geological area to be determined as the initial area, analyzing the information in the spectrum map of each block to obtain the geological exploration depth of the metal deposit in the geological area to be determined; Based on the geological exploration depth and the spectrum of each object block, the geological area to be determined is sampled and analyzed to determine the metal ore boundary of the geological area to be determined; Sampling the remaining area of ​​the geological area to be determined according to the metal mine boundary and analyzing its distribution; The metal is iron metal, and the central area of ​​the geological area to be determined is used as the initial area, and the information in the spectrum map of each block is analyzed to obtain the geological exploration depth of the metal deposit in the geological area to be determined, including: Taking the first area located at the center of the geological area to be determined as the initial area, determining an initial acquisition area including a first peak and a second peak on the spectrum graph, wherein the first peak is a peak representing the deepest depth between 1000 and 1100 nm, and the second peak is a peak representing the shallowest depth between 600 and 900 nm; Acquire a first relationship between metal ion concentration and depth according to the sizes of the first wave peak and the second wave peak and the corresponding sampling depth; Performing spectral analysis on the spectra of the object blocks collected at the deepest, shallowest and intermediate depths respectively, obtaining a second relationship between the metal ion concentration and the depth related to the spectra collected at the deepest and intermediate depths, and a third relationship between the metal ion concentration and the depth related to the spectra collected at the shallowest and intermediate depths; According to the first relationship, the second relationship and the third relationship, the depth at which the metal ion concentration is greater at the initial point is obtained, and the geological exploration depth of the iron ore deposit in the geological area to be determined is determined in combination with the clustered distribution characteristics of the iron ore deposit; The method of taking the first area located at the center of the geological area to be determined as the initial area and determining the initial acquisition area including the first peak and the second peak on the spectrum graph comprises: Taking the first region located at the center of the geological region to be determined as the initial region, determining whether the spectrum graph corresponding to the initial region includes the first peak and the second peak; If yes, the initial area is used as the initial acquisition area; If the first peak and / or the second peak does not exist on the spectrum graph corresponding to the initial area, the first area around the initial area is selected for sampling, analysis and judgment until the first area including the first peak and the second peak on the spectrum graph is determined, and the determined first area is used as the initial acquisition area; The first relationship is specifically: in, To express the first relationship between metal ion concentration and depth, The peak on the object spectrum graph represents the deepest depth of the acquisition point. The peak on the spectrum of the object representing the shallowest depth of the acquisition point, is the depth difference, = deepest depth - shallowest depth; The second relationship and the third relationship are specifically: In the formula, To express the second relationship between metal ion concentration and depth, To express the third relationship between metal ion concentration and depth, Indicates the distance on the object spectrum collected between the deepest and middle depths The recent peak size, Indicates the distance on the object spectrum collected between the shallowest point and the middle of the middle depth The recent peak size, The peak size The sampling depth and peak size corresponding to The depth difference of the corresponding sampling depth, The peak size The sampling depth and peak size corresponding to The depth difference of the corresponding sampling depth, The spectral range is 600~900nm. The spectral range is 1000~1100nm.

2. The geological exploration and positioning method based on remote sensing technology according to claim 1, characterized in that: The obtaining the depth at which the metal ion concentration is greater at the initial point according to the first relationship, the second relationship and the third relationship comprises: Determine a variation rule of ion concentration as the depth changes according to the first relationship, the second relationship and the third relationship; The depth at which the metal ion concentration is greater at the initial point is obtained according to the variation rule.

3. The geological exploration and positioning method based on remote sensing technology according to claim 1, characterized in that: The sampling and analysis of the geological area to be determined based on the geological exploration depth combined with the spectral map of each object block to determine the metal ore boundary of the geological area to be determined includes: Calculating the iron metal ion concentration in each first region; Taking the initial collection area as the starting point, if the iron metal ion concentration at the starting point is greater than the first reference threshold, then selecting the third first area of ​​the same size in the current direction for the next step of sampling, and if the iron metal ion concentration calculated in the next step is less than the second reference threshold, then retreating one first area for sampling; If the iron metal ion concentration at the starting point is less than the second reference threshold, calculation is performed in the next first area immediately adjacent thereto until a first position point where the iron metal ion concentration is greater than the second reference threshold is obtained; If the iron metal ion concentration at the starting point is greater than or equal to the second reference threshold and less than or equal to the first reference threshold, then select the next first area in the current direction for sampling until there are two consecutive first areas where the iron metal ion concentration calculated is less than the second reference threshold, thereby indicating the boundary of the iron ore deposit; The same calculation is performed in each direction of the initial acquisition area in turn to identify the boundary of the iron ore deposit in the current area.

4. The geological exploration and positioning method based on remote sensing technology as claimed in claim 3, characterized in that: The step of calculating the iron metal ion concentration in each first region comprises: Calculate the first area Ion concentration performance and Ion concentration performance; According to the Ion concentration performance and The ion concentration represents the calculated iron metal ion concentration of each first region.

5. The geological exploration and positioning method based on remote sensing technology according to claim 1, characterized in that: The method of sampling the remaining area of ​​the geological area to be determined according to the metal mine boundary and analyzing its distribution includes: Sampling the remaining area of ​​the geological area to be determined with a second area of ​​a second preset size according to the metal mine boundary; Separately sampling 9 locations in each of the second regions and calculating the iron metal ion concentrations thereof; If there are two second regions in either direction where the iron metal ion concentration is less than a second reference threshold, the calculation is stopped; If the iron metal ion concentration of any of the second regions is greater than or equal to the second reference threshold, the second region is sampled and analyzed.

6. A geological exploration positioning system based on remote sensing technology, characterized in that: The system is used to implement the steps of a geological exploration and positioning method based on remote sensing technology as described in any one of claims 1 to 5, comprising: A spectral sampling unit is used to use a machine to perform multiple random depth sampling of blocks in the geological area to be judged, and obtain a spectral map of each block and a corresponding sampling depth; A regional distribution acquisition unit, used to analyze the spectrum of each block in combination with the sampling depth to determine the regional distribution of metal mines in the geological area to be determined; The geological exploration and positioning unit is used to perform geological exploration and positioning according to the regional distribution situation in the geological area to be determined.

Images