A method and system for quickly generating high-precision archaeological stratigraphic profiles

Abstract

The present invention relates to the field of archaeological exploration technology, and in particular to a method and system for quickly generating a high-precision archaeological stratigraphic profile. The present invention performs drilling sampling on a plurality of drilling points in a target archaeological area to obtain coordinate values ​​of different sampling points and stratigraphic characteristics of the sampled samples, determines a soil-derived uniform characterization coefficient based on discrete differences in stratigraphic characteristics corresponding to sampling points in different reference directions in a sub-archaeological area to determine a soil uniformity category of the sub-archaeological area, constructs a plurality of virtual derived sampling points in the sub-archaeological area, determines simulated stratigraphic characteristics corresponding to each virtual derived sampling point according to the soil uniformity category of different sub-archaeological areas, establishes a stratigraphic three-dimensional model of the target archaeological area based on the plurality of sampling points and the virtual derived sampling points, cuts the stratigraphic three-dimensional model, and obtains stratigraphic profiles corresponding to different cutting planes, thereby reducing the difficulty of obtaining the archaeological stratigraphic profile and improving the generation speed and accuracy of the archaeological stratigraphic profile.

Description

Technical Field

[0001] The present invention relates to the technical field of archaeological exploration, and in particular to a method and system for quickly generating a high-precision archaeological stratigraphic profile. Background Art

[0002] The stratigraphic profile is one of the important maps in geology. It is a map that shows the stratigraphic structure on the surface or at a certain depth. It is the basic data for studying strata, rock masses and structures. This map is of great significance for analyzing stratigraphic structure, compiling other comprehensive geological maps, conducting mining design, determining the location of coal pillars and arranging mine geological exploration.

[0003] Chinese patent announcement number: CN118379447A, discloses a method for generating a three-dimensional geological profile, including: identifying the outer contour information of the geological profile, and using the outer contour information to split the geological profile into multiple polygons; using the trained geological symbol recognition model to identify each polygon, and obtain the name of the two-dimensional geological symbol of each polygon; the input of the geological symbol recognition model is a two-dimensional geological symbol, and the output is the name of the two-dimensional geological symbol; using the name of the two-dimensional geological symbol, matching geological real-life photos; identifying the texture information on each polygon, distorting the geological real-life photos according to the texture information, filling each polygon, and splicing to obtain a real-life geological profile; splicing real-life geological profiles in different directions to obtain a three-dimensional geological profile of the target area. The present invention generates a three-dimensional geological profile through real-life geological profiles in multiple directions by matching real-life photos according to geological profiles, using real-life photos to render and fill profiles, and reproducing real scenes.

[0004] However, there are still the following problems in the prior art:

[0005] Most profiles are obtained through drilling. Traditional borehole data processing methods are usually time-consuming and inefficient, making it difficult to quickly and accurately generate stratigraphic profiles, which limits the accuracy and efficiency of generating stratigraphic profiles. Summary of the invention

[0006] To this end, the present invention provides a method for quickly generating high-precision archaeological stratigraphic profiles, which is used to solve the problem that traditional borehole data processing methods are usually time-consuming and inefficient, making it difficult to quickly and accurately generate stratigraphic profiles, resulting in limited accuracy and efficiency in generating stratigraphic profiles.

[0007] To achieve the above object, the present invention provides a method for quickly generating a high-precision archaeological stratigraphic profile on the one hand, and a system for quickly generating a high-precision archaeological stratigraphic profile on the other hand, comprising:

[0008] Step S1, drilling and sampling are performed on a number of drilling points in the target archaeological area to obtain the coordinate values ​​of different sampling points and the stratigraphic characteristics of the sampled samples, including soil type, soil particle size and humidity;

[0009] Step S2, determining the soil quality derived uniform characterization coefficient based on the discrete differences of the stratigraphic characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, so as to determine the soil quality uniformity category of the sub-archaeological area;

[0010] Step S3, constructing a number of virtual derivative sampling points in the sub-archaeological area, and determining the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point according to the soil uniformity category of different sub-archaeological areas, including:

[0011] Determine adjacent sampling points in different reference directions of the sampling point, identify characteristic sampling points by comparing the differences in formation characteristics, construct a square space with the characteristic sampling point as the center, and determine the formation characteristics of the characteristic sampling point as simulated formation characteristics of each virtual derivative sampling point in the square space;

[0012] Recording virtual derived sampling points whose simulated stratigraphic characteristics are not determined, screening reference sampling points based on the distances between each virtual derived sampling point and each sampling point, and determining simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points;

[0013] Or, extracting the stratigraphic characteristics of each sampling point, determining the representative stratigraphic characteristics, and determining the representative stratigraphic characteristics as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area;

[0014] Step S4, establishing a three-dimensional stratigraphic model of the target archaeological area based on a number of sampling points and virtual derived sampling points, cutting the three-dimensional stratigraphic model, and obtaining corresponding stratigraphic profiles under different cutting planes.

[0015] Further, the process of determining the soil-derived uniform characterization coefficient includes,

[0016] Construct several reference lines;

[0017] Solve the soil particle size standard deviation and moisture standard deviation of several sampling points on the same reference line, and obtain the mean soil particle size standard deviation and moisture standard deviation for each reference line;

[0018] The ratio of the mean value of soil particle size standard deviation to the soil particle size standard deviation threshold is determined as the first uniform characterization feature;

[0019] determining a ratio of a humidity standard deviation mean to a humidity standard deviation threshold as a second uniform characterization feature;

[0020] The first uniform characterization feature and the second uniform characterization feature are weighted and summed to obtain a soil-derived uniform characterization coefficient;

[0021] The reference line is parallel to at least one reference coordinate axis, and the reference line passes through at least two acquisition points.

[0022] Furthermore, the soil uniformity category of the sub-archaeological area is determined based on the soil-derived uniformity characterization coefficient, where:

[0023] If the soil quality derived uniform characterization coefficient is less than or equal to the reference soil quality derived uniform characterization coefficient, the soil quality uniformity category is determined to be uniform soil;

[0024] If the soil quality derived uniform characterization coefficient is greater than the reference soil quality derived uniform characterization coefficient, the soil quality uniformity category is determined to be non-uniform soil quality.

[0025] Furthermore, the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point are determined according to the soil uniformity category of different sub-archaeological areas, where:

[0026] If the uniform soil type is uniform soil, the stratigraphic characteristics of each sampling point are extracted to determine the representative stratigraphic characteristics, and the representative stratigraphic characteristics are determined as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area;

[0027] If the uniform soil type is non-uniform soil, a square space is constructed with the characteristic sampling point as the center, the stratigraphic characteristics of the characteristic sampling point are determined as the simulated stratigraphic characteristics of each virtual derived sampling point in the square space, the virtual derived sampling points whose simulated stratigraphic characteristics have not been determined are recorded, reference sampling points are screened based on the distances between each virtual derived sampling point and each sampling point, and the simulated stratigraphic characteristics of the virtual derived sampling point are determined based on the stratigraphic characteristics of the reference sampling point.

[0028] Further, the process of determining adjacent sampling points in different reference directions of the sampling point to compare the difference in formation characteristics and identify characteristic sampling points includes:

[0029] respectively determining the differences in formation characteristics corresponding to the sampling point and each of the adjacent sampling points;

[0030] The sampling points meeting the difference conditions are determined as characteristic sampling points;

[0031] Among them, the difference conditions include that the soil type of the sampling point and each of the adjacent sampling points are the same, the soil particle size difference between the sampling point and each of the adjacent sampling points is within a predetermined particle size difference range, and the humidity difference between the sampling point and each of the adjacent sampling points is within a predetermined humidity difference range.

[0032] Furthermore, the process of constructing a square space centered on the feature sampling point includes:

[0033] Calculate the distance between the feature sampling point and the farthest adjacent sampling point;

[0034] Construct a square space with the characteristic sampling point as the center and the distance as the side length;

[0035] The characteristic difference between the adjacent sampling point and the characteristic sampling point meets the difference condition.

[0036] Furthermore, the process of screening the reference sampling points and determining the simulated formation characteristics of the virtual derived sampling points based on the formation characteristics of the reference sampling points includes:

[0037] Determining the distance between the virtual derived sampling point and each of the sampling points;

[0038] Arrange the serial numbers corresponding to each sampling point in ascending order according to the distance to obtain a sampling point sequence;

[0039] A predetermined number of serial numbers are selected from the head end of the sampling point sequence, and sampling points corresponding to the selected serial numbers are determined as reference sampling points;

[0040] The soil category with the largest proportion in each reference sampling point is determined as the soil category of the virtual derived sampling point;

[0041] Determine the mean value of the soil particle size of each reference sampling point as the soil particle size of the virtual derived sampling point;

[0042] The average humidity of each reference sampling point is determined as the humidity of the virtual derived sampling point.

[0043] Furthermore, in step S3, the process of determining the formation characteristics includes:

[0044] The soil category with the largest proportion in each sampling point is determined as the soil category of each virtual derived sampling point;

[0045] Determine the mean value of the soil particle size at each sampling point as the soil particle size at each virtual derived sampling point;

[0046] The average humidity of each sampling point is determined as the humidity of the virtual derived sampling point.

[0047] Furthermore, in step S4, the process of establishing a three-dimensional stratigraphic model of the target archaeological area includes:

[0048] Determine a sub-model based on the sampling point and the soil category corresponding to each of the virtual derived sampling points;

[0049] Set labels for sub-models based on soil particle size and moisture content;

[0050] The sub-model is filled to the corresponding coordinates according to the coordinate values ​​of the sampling points and each of the virtual derived sampling points to obtain a three-dimensional stratigraphic model for the target archaeological area.

[0051] Furthermore, a system for quickly generating a high-precision archaeological stratigraphic profile is provided, comprising:

[0052] A feature acquisition module is used to obtain the coordinate values ​​of different sampling points and the stratigraphic characteristics of the sampled samples, including soil type, soil particle size and moisture;

[0053] A stratum determination module, connected to the feature acquisition module, is used to determine the soil quality derived uniform characterization coefficient based on the discrete differences of the stratum characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, so as to determine the soil quality uniformity category of the sub-archaeological area;

[0054] The stratigraphic simulation module is connected to the stratigraphic determination module and is used to construct a number of virtual derivative sampling points in the sub-archaeological area, and determine the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point according to the soil uniformity category of different sub-archaeological areas, including:

[0055] Determine adjacent sampling points in different reference directions of the sampling point, identify characteristic sampling points by comparing the differences in formation characteristics, construct a square space with the characteristic sampling point as the center, and determine the formation characteristics of the characteristic sampling point as simulated formation characteristics of each virtual derivative sampling point in the square space;

[0056] Recording virtual derived sampling points whose simulated stratigraphic characteristics are not determined, screening reference sampling points based on the distances between each virtual derived sampling point and each sampling point, and determining simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points;

[0057] Or, extracting the stratigraphic characteristics of each sampling point, determining the representative stratigraphic characteristics, and determining the representative stratigraphic characteristics as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area;

[0058] The model cutting module is connected to the stratigraphic simulation module and is used to establish a three-dimensional stratigraphic model of the target archaeological area based on a number of sampling points and virtual derivative sampling points, and to cut the three-dimensional stratigraphic model to obtain corresponding stratigraphic profiles under different cutting surfaces.

[0059] Compared with the prior art, the present invention performs drilling sampling on several drilling points in the target archaeological area to obtain the coordinate values ​​of different sampling points and the stratigraphic characteristics of the samples, determines the soil-derived uniform characterization coefficient based on the discrete differences of the stratigraphic characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area to determine the soil uniformity category of the sub-archaeological area, constructs several virtual derived sampling points in the sub-archaeological area, determines the simulated stratigraphic characteristics corresponding to each virtual derived sampling point according to the soil uniformity category of different sub-archaeological areas, establishes a stratigraphic three-dimensional model of the target archaeological area based on the several sampling points and the virtual derived sampling points, cuts the stratigraphic three-dimensional model, and obtains the corresponding stratigraphic profiles under different cutting surfaces, thereby reducing the difficulty of obtaining the archaeological stratigraphic profiles and improving the generation speed and accuracy of the archaeological stratigraphic profiles.

[0060] In particular, the present invention calculates the soil-derived uniform characterization coefficient to determine the soil uniformity category of the sub-archaeological area, providing a theoretical basis for determining the stratigraphic characteristics. In actual situations, the stratigraphic characteristics may change. For example, due to the internal forces of the strata and the effects of gravity sedimentation, the soil may be reflected in the form of strata differences or the soil may appear different at different positions in the horizontal layer. In order to make the stratigraphic characteristics determination more accurate, the present invention considers determining the soil-derived uniform characterization coefficient based on the discrete differences in the stratigraphic characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, determining the soil uniformity category of the sub-archaeological area, dividing the soil uniformity category into uniform soil and non-uniform soil, and determining the stratigraphic characteristics of the archaeological area respectively, thereby improving the generation speed and accuracy of the archaeological stratigraphic profile.

[0061] In particular, the present invention determines the stratigraphic characteristics according to the soil uniformity category. In actual situations, different soil uniformity categories have different stratigraphic characteristics. Based on this, the present invention has different determination methods for different types of soil uniformity categories. Preferably, characteristic sampling points are screened for uneven soil to screen out sub-archaeological areas with relatively uniform stratigraphic characteristics, and then the stratigraphic characteristics of the virtual derived sampling points are quickly determined by constructing square areas to provide data support for the subsequent construction of a three-dimensional stratigraphic model, thereby improving efficiency while ensuring reliability, and for virtual derived sampling points whose stratigraphic characteristics cannot be directly determined based on adjacent sampling points, reference sampling points are screened, and the stratigraphic characteristics of the reference sampling points are considered, thereby improving the accuracy and reliability of determining the stratigraphic characteristics of the virtual derived sampling points, and improving the accuracy and reliability of the subsequently constructed three-dimensional stratigraphic model and the obtained stratigraphic profile.

[0062] In particular, for uniform soil, due to the distribution characteristics of the soil, it is considered to directly determine the stratigraphic characteristics based on all sampling points to ensure the speed and reliability of generating the stratigraphic three-dimensional model and the obtained stratigraphic profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 A schematic diagram of the method steps of a method for quickly generating a high-precision archaeological stratigraphic profile according to an embodiment of the invention;

[0064] Figure 2 A logic block diagram for determining the uniform soil quality category of a sub-archaeological area according to an embodiment of the invention;

[0065] Figure 3 This is a schematic diagram of the structure of a system for rapidly generating high-precision archaeological stratigraphic profiles according to an embodiment of the invention. DETAILED DESCRIPTION

[0066] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0067] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0068] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] See also Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the method steps of the method for quickly generating a high-precision archaeological stratigraphic profile according to an embodiment of the invention. Figure 2 This is a logic block diagram for determining the soil uniformity category of a sub-archaeological area in an embodiment of the invention. Figure 3 The schematic diagram of the structure of the high-precision archaeological stratigraphic profile rapid generation system of the embodiment of the invention is a method for rapidly generating a high-precision archaeological stratigraphic profile of the present invention, which comprises:

[0070] Step S1, drilling and sampling are performed on a number of drilling points in the target archaeological area to obtain the coordinate values ​​of different sampling points and the stratigraphic characteristics of the sampled samples, including soil type, soil particle size and humidity;

[0071] Step S2, determining the soil quality derived uniform characterization coefficient based on the discrete differences of the stratigraphic characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, so as to determine the soil quality uniformity category of the sub-archaeological area;

[0072] Step S3, constructing a number of virtual derivative sampling points in the sub-archaeological area, and determining the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point according to the soil uniformity category of different sub-archaeological areas, including:

[0073] Determine adjacent sampling points in different reference directions of the sampling point, identify characteristic sampling points by comparing the differences in formation characteristics, construct a square space with the characteristic sampling point as the center, and determine the formation characteristics of the characteristic sampling point as simulated formation characteristics of each virtual derivative sampling point in the square space;

[0074] Recording virtual derived sampling points whose simulated stratigraphic characteristics are not determined, screening reference sampling points based on the distances between each virtual derived sampling point and each sampling point, and determining simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points;

[0075] Or, extracting the stratigraphic characteristics of each sampling point, determining the representative stratigraphic characteristics, and determining the representative stratigraphic characteristics as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area;

[0076] Step S4, establishing a three-dimensional stratigraphic model of the target archaeological area based on a number of sampling points and virtual derived sampling points, cutting the three-dimensional stratigraphic model, and obtaining corresponding stratigraphic profiles under different cutting planes.

[0077] It can be understood that the three-dimensional coordinate system is established based on the target archaeological area, and the plane formed by the X-axis and Y-axis of the three-dimensional coordinate system is parallel to the horizontal plane, and the Z-axis is perpendicular to the horizontal plane.

[0078] Specifically, there is no limitation on the drilling method. In actual situations, several equally spaced auxiliary lines can be determined. The auxiliary lines are parallel to the Y-axis or X-axis of the three-dimensional coordinate system. Drilling points are set at equal intervals on the auxiliary lines to cover the entire target archaeological area. When drilling at a single drilling point, sampling points can be set at different depths for sampling, and the samples can be analyzed to obtain the stratigraphic characteristics of different sampling points.

[0079] Specifically, the process of determining the soil-derived uniform characterization coefficient includes:

[0080] Construct several reference lines;

[0081] Solve the soil particle size standard deviation and moisture standard deviation of several sampling points on the same reference line, and obtain the mean soil particle size standard deviation and moisture standard deviation for each reference line;

[0082] The ratio of the mean value of soil particle size standard deviation to the soil particle size standard deviation threshold is determined as the first uniform characterization feature;

[0083] determining a ratio of a humidity standard deviation mean to a humidity standard deviation threshold as a second uniform characterization feature;

[0084] The first uniform characterization feature and the second uniform characterization feature are weighted and summed to obtain a soil-derived uniform characterization coefficient;

[0085] The reference line is parallel to at least one reference coordinate axis, and the reference line passes through at least two acquisition points.

[0086] It can be understood that the reference line is a virtual line, and the reference coordinate axis includes an X-axis and a Y-axis.

[0087] Specifically, there is no limitation on the method of obtaining soil particle size. For example, it can be calculated by a hydrometer method or directly obtained through an image. As long as the soil particle size can be obtained, technicians in this field can choose according to actual conditions, which will not be elaborated here.

[0088] Specifically, there is no limitation on the method of obtaining humidity. For example, it can be a wet-dry bulb hygrometer and an electronic humidity sensor. As long as the humidity data can be obtained, technicians in this field can choose according to actual conditions, which will not be elaborated here.

[0089] Specifically, when the first uniform characterization feature and the second uniform characterization feature are weighted and summed, the weight of the first uniform characterization feature is 0.65, and the weight of the second uniform characterization feature is 0.35.

[0090] Specifically, the soil particle size standard deviation threshold was selected within the interval [0.02 mm, 0.05 mm].

[0091] Specifically, the humidity standard deviation threshold is selected within the interval [3%RH, 10%RH].

[0092] Specifically, the soil uniformity category of the sub-archaeological area is determined based on the soil-derived uniformity characterization coefficient, where:

[0093] If the soil quality derived uniform characterization coefficient is greater than the reference soil quality derived uniform characterization coefficient, the soil quality uniformity category is determined to be non-uniform soil quality;

[0094] If the soil quality derived uniform characterization coefficient is less than or equal to the reference soil quality derived uniform characterization coefficient, the soil quality uniformity category is determined to be uniform soil.

[0095] Specifically, the benchmark soil-derived uniform characterization coefficient is selected in the interval [0.89, 1.26].

[0096] Specifically, the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point are determined according to the soil uniformity category of different sub-archaeological areas, among which:

[0097] If the uniform soil type is uniform soil, the stratigraphic characteristics of each sampling point are extracted to determine the representative stratigraphic characteristics, and the representative stratigraphic characteristics are determined as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area;

[0098] If the uniform soil type is non-uniform soil, a square space is constructed with the characteristic sampling point as the center, the stratigraphic characteristics of the characteristic sampling point are determined as the simulated stratigraphic characteristics of each virtual derived sampling point in the square space, the virtual derived sampling points whose simulated stratigraphic characteristics have not been determined are recorded, reference sampling points are screened based on the distances between each virtual derived sampling point and each sampling point, and the simulated stratigraphic characteristics of the virtual derived sampling point are determined based on the stratigraphic characteristics of the reference sampling point.

[0099] Specifically, the process of determining adjacent sampling points in different reference directions of the sampling points to compare the differences in formation characteristics and identify characteristic sampling points includes:

[0100] respectively determining the differences in formation characteristics corresponding to the sampling point and each of the adjacent sampling points;

[0101] The sampling points meeting the difference conditions are determined as characteristic sampling points;

[0102] Among them, the difference conditions include that the soil type of the sampling point and each of the adjacent sampling points are the same, the soil particle size difference between the sampling point and each of the adjacent sampling points is within a predetermined particle size difference range, and the humidity difference between the sampling point and each of the adjacent sampling points is within a predetermined humidity difference range.

[0103] Specifically, the predetermined particle size difference range is selected within [0 mm, 0.08 mm].

[0104] Specifically, the predetermined humidity difference range is selected within [0%RH, 20%RH].

[0105] Specifically, in step S3, the process of constructing a square space with the feature sampling point as the center includes:

[0106] Calculate the distance between the feature sampling point and the adjacent sampling point;

[0107] A square space is constructed with the characteristic sampling point as the center and the distance as the side length.

[0108] Specifically, the process of screening reference sampling points and determining the simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points includes:

[0109] Determining the distance between the virtual derived sampling point and each of the sampling points;

[0110] Arrange the serial numbers corresponding to each sampling point in ascending order according to the distance to obtain a sampling point sequence;

[0111] A predetermined number of serial numbers are selected from the head end of the sampling point sequence, and sampling points corresponding to the selected serial numbers are determined as reference sampling points;

[0112] The soil category with the largest proportion in each reference sampling point is determined as the soil category of the virtual derived sampling point;

[0113] Determine the mean value of the soil particle size of each reference sampling point as the soil particle size of the virtual derived sampling point;

[0114] The average humidity of each reference sampling point is determined as the humidity of the virtual derived sampling point.

[0115] Specifically, the process of determining the characteristics of the formation includes:

[0116] The soil category with the largest proportion in each sampling point is determined as the soil category of each virtual derived sampling point;

[0117] Determine the mean value of the soil particle size at each sampling point as the soil particle size at each virtual derived sampling point;

[0118] The average humidity of each sampling point is determined as the humidity of the virtual derived sampling point.

[0119] Specifically, in step S4, the process of establishing a three-dimensional stratigraphic model of the target archaeological area includes:

[0120] Determine a sub-model based on the sampling point and the soil category corresponding to each of the virtual derived sampling points;

[0121] Set labels for sub-models based on soil particle size and moisture content;

[0122] The sub-model is filled to the corresponding coordinates according to the coordinate values ​​of the sampling points and each of the virtual derived sampling points to obtain a three-dimensional stratigraphic model for the target archaeological area.

[0123] It is understandable that the sub-model can be a pre-established three-dimensional stratigraphic model of different soil categories. There is no limitation on the specific form of establishing the three-dimensional stratigraphic model. It is understandable that the three-dimensional stratigraphic models corresponding to different soil categories are different. Based on the color differences in the soil categories, the three-dimensional stratigraphic models can be given different colors when rendering to reflect the differences in soil categories. This will not be elaborated.

[0124] Specifically, there is no limitation on the form of setting labels. The purpose of setting labels is to determine the soil particle size and moisture of the sub-model. After the sub-model is determined, the soil particle size and moisture of the soil in the corresponding area can be determined according to the label of the sub-model.

[0125] It can be understood that the sub-model can be a square. When the sub-model is filled to the corresponding coordinates, the center of the sub-model is placed at the corresponding coordinates. The sub-model is filled with each sampling point and the virtual derived sampling point to cover the entire target archaeological area.

[0126] Specifically, a system for quickly generating a high-precision archaeological stratigraphic profile is also provided, comprising:

[0127] The feature acquisition module performs drilling sampling on several drilling points in the target archaeological area to obtain the coordinate values ​​of different sampling points and the stratigraphic characteristics of the sampled samples, including soil type, soil particle size and moisture;

[0128] The stratigraphic determination module determines the soil-derived uniform characterization coefficient based on the discrete differences of the stratigraphic characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, so as to determine the soil uniformity category of the sub-archaeological area;

[0129] The stratigraphic simulation module constructs several virtual derivative sampling points in the sub-archaeological area, and determines the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point according to the soil uniformity category of different sub-archaeological areas, including:

[0130] Determine adjacent sampling points in different reference directions of the sampling point, identify characteristic sampling points by comparing the differences in formation characteristics, construct a square space with the characteristic sampling point as the center, and determine the formation characteristics of the characteristic sampling point as simulated formation characteristics of each virtual derivative sampling point in the square space;

[0131] Recording virtual derived sampling points whose simulated stratigraphic characteristics are not determined, screening reference sampling points based on the distances between each virtual derived sampling point and each sampling point, and determining simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points;

[0132] Or, extracting the stratigraphic characteristics of each sampling point, determining the representative stratigraphic characteristics, and determining the representative stratigraphic characteristics as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area;

[0133] The model cutting module establishes a three-dimensional stratigraphic model of the target archaeological area based on a number of sampling points and virtual derived sampling points, cuts the three-dimensional stratigraphic model, and obtains corresponding stratigraphic profiles under different cutting planes.

[0134] Specifically, there is no limitation on the specific structures of the feature acquisition module, the formation determination module, the formation simulation module and the model cutting module, and they can all be composed of logic components, including field programmable components, computers or microprocessors in computers.

[0135] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for quickly generating a high-precision archaeological stratigraphic profile, characterized in that: include: Step S1, drilling and sampling are performed on a number of drilling points in the target archaeological area to obtain the coordinate values ​​of different sampling points and the stratigraphic characteristics of the sampled samples, including soil type, soil particle size and humidity; Step S2, determining the soil quality derived uniform characterization coefficient based on the discrete differences of the stratigraphic characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, so as to determine the soil quality uniformity category of the sub-archaeological area; Step S3, constructing a number of virtual derivative sampling points in the sub-archaeological area, and determining the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point according to the soil uniformity category of different sub-archaeological areas, including: Determine adjacent sampling points in different reference directions of the sampling point, identify characteristic sampling points by comparing the differences in formation characteristics, construct a square space with the characteristic sampling point as the center, and determine the formation characteristics of the characteristic sampling point as simulated formation characteristics of each virtual derivative sampling point in the square space; Recording virtual derived sampling points whose simulated stratigraphic characteristics are not determined, screening reference sampling points based on the distances between each virtual derived sampling point and each sampling point, and determining simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points; Or, extracting the stratigraphic characteristics of each sampling point, determining the representative stratigraphic characteristics, and determining the representative stratigraphic characteristics as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area; Step S4, establishing a three-dimensional stratigraphic model of the target archaeological area based on a number of sampling points and virtual derived sampling points, cutting the three-dimensional stratigraphic model, and obtaining corresponding stratigraphic profiles under different cutting planes; In step S2, the process of determining the soil-derived uniform characterization coefficient includes: Construct several reference lines; Solve the soil particle size standard deviation and moisture standard deviation of several sampling points on the same reference line, and obtain the mean soil particle size standard deviation and moisture standard deviation for each reference line; The ratio of the mean value of soil particle size standard deviation to the soil particle size standard deviation threshold is determined as the first uniform characterization feature; determining a ratio of a humidity standard deviation mean to a humidity standard deviation threshold as a second uniform characterization feature; The first uniform characterization feature and the second uniform characterization feature are weighted and summed to obtain a soil-derived uniform characterization coefficient; Wherein, the reference line is parallel to at least one reference coordinate axis, and the reference line passes through at least two acquisition points; In step S3, the process of screening reference sampling points and determining the simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points includes: Determining the distance between the virtual derived sampling point and each of the sampling points; Arrange the serial numbers corresponding to each sampling point in ascending order according to the distance to obtain a sampling point sequence; A predetermined number of serial numbers are selected from the head end of the sampling point sequence, and sampling points corresponding to the selected serial numbers are determined as reference sampling points; The soil category with the largest proportion in each reference sampling point is determined as the soil category of the virtual derived sampling point; Determine the mean value of the soil particle size of each reference sampling point as the soil particle size of the virtual derived sampling point; Determine the humidity mean of each reference sampling point as the humidity of the virtual derived sampling point; In step S3, the process of determining the formation characteristics includes: The soil category with the largest proportion in each sampling point is determined as the soil category of each virtual derived sampling point; Determine the mean value of the soil particle size at each sampling point as the soil particle size at each virtual derived sampling point; The average humidity of each sampling point is determined as the humidity of the virtual derived sampling point.

2. The method for rapidly generating a high-precision archaeological stratigraphic profile according to claim 1, characterized in that: In step S2, the soil uniformity category of the sub-archaeological area is determined based on the soil-derived uniformity characterization coefficient, wherein: If the soil quality derived uniform characterization coefficient is less than or equal to the reference soil quality derived uniform characterization coefficient, the soil quality uniformity category is determined to be uniform soil; If the soil quality derived uniform characterization coefficient is greater than the reference soil quality derived uniform characterization coefficient, the soil quality uniformity category is determined to be non-uniform soil quality.

3. The method for rapidly generating a high-precision archaeological stratigraphic profile according to claim 1, characterized in that: In step S3, the simulated stratigraphic characteristics corresponding to each virtual derived sampling point are determined according to the soil uniformity category of different sub-archaeological areas, wherein: If the uniform soil type is uniform soil, the stratigraphic characteristics of each sampling point are extracted to determine the representative stratigraphic characteristics, and the representative stratigraphic characteristics are determined as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area; If the uniform soil type is non-uniform soil, a square space is constructed with the characteristic sampling point as the center, the stratigraphic characteristics of the characteristic sampling point are determined as the simulated stratigraphic characteristics of each virtual derived sampling point in the square space, the virtual derived sampling points whose simulated stratigraphic characteristics have not been determined are recorded, reference sampling points are screened based on the distances between each virtual derived sampling point and each sampling point, and the simulated stratigraphic characteristics of the virtual derived sampling point are determined based on the stratigraphic characteristics of the reference sampling point.

4. The method for rapidly generating a high-precision archaeological stratigraphic profile according to claim 1, characterized in that: In step S3, the process of determining adjacent sampling points of different reference directions of the sampling point to compare the difference of formation characteristics and identify characteristic sampling points includes: respectively determining the differences in formation characteristics corresponding to the sampling point and each of the adjacent sampling points; The sampling points meeting the difference conditions are determined as characteristic sampling points; Among them, the difference conditions include that the soil type of the sampling point and each of the adjacent sampling points are the same, the soil particle size difference between the sampling point and each of the adjacent sampling points is within a predetermined particle size difference range, and the humidity difference between the sampling point and each of the adjacent sampling points is within a predetermined humidity difference range.

5. The method for rapidly generating a high-precision archaeological stratigraphic profile according to claim 4, characterized in that: In step S3, the process of constructing a square space with the characteristic sampling point as the center includes: Calculate the distance between the feature sampling point and the adjacent sampling point; A square space is constructed with the characteristic sampling point as the center and the distance as the side length.

6. The method for rapidly generating a high-precision archaeological stratigraphic profile according to claim 1, characterized in that: In step S4, the process of establishing a three-dimensional stratigraphic model of the target archaeological area includes: Determine a sub-model based on the sampling point and the soil category corresponding to each of the virtual derived sampling points; Set labels for sub-models based on soil particle size and moisture content; The sub-model is filled to the corresponding coordinates according to the coordinate values ​​of the sampling points and each of the virtual derived sampling points to obtain a three-dimensional stratigraphic model for the target archaeological area.

7. A system using the method for quickly generating a high-precision archaeological stratigraphic profile according to any one of claims 1 to 6, characterized in that: include, The feature acquisition module is used to obtain the coordinate values ​​of different input sampling points and the stratigraphic characteristics of the sampled samples. Including, soil type, soil particle size and moisture; A stratum determination module, connected to the feature acquisition module, is used to determine the soil quality derived uniform characterization coefficient based on the discrete differences of the stratum characteristics corresponding to the sampling points in different reference directions in the sub-archaeological area, so as to determine the soil quality uniformity category of the sub-archaeological area; The stratigraphic simulation module is connected to the stratigraphic determination module and is used to construct a number of virtual derivative sampling points in the sub-archaeological area, and determine the simulated stratigraphic characteristics corresponding to each virtual derivative sampling point according to the soil uniformity category of different sub-archaeological areas, including: Determine adjacent sampling points in different reference directions of the sampling point, identify characteristic sampling points by comparing the differences in formation characteristics, construct a square space with the characteristic sampling point as the center, and determine the formation characteristics of the characteristic sampling point as simulated formation characteristics of each virtual derivative sampling point in the square space; Recording virtual derived sampling points whose simulated stratigraphic characteristics are not determined, screening reference sampling points based on the distances between each virtual derived sampling point and each sampling point, and determining simulated stratigraphic characteristics of the virtual derived sampling points based on the stratigraphic characteristics of the reference sampling points; Or, extracting the stratigraphic characteristics of each sampling point, determining the representative stratigraphic characteristics, and determining the representative stratigraphic characteristics as the simulated stratigraphic characteristics corresponding to each virtual derived sampling point in the sub-archaeological area; A model cutting module is connected to the stratigraphic simulation module, and is used to establish a stratigraphic three-dimensional model of the target archaeological area based on a number of sampling points and virtual derivative sampling points, and to cut the stratigraphic three-dimensional model to obtain stratigraphic profiles corresponding to different cutting planes; The process of determining the soil quality derived uniform characterization coefficient in the stratum determination module includes: Construct several reference lines; Solve the soil particle size standard deviation and moisture standard deviation of several sampling points on the same reference line, and obtain the mean soil particle size standard deviation and moisture standard deviation for each reference line; The ratio of the mean value of soil particle size standard deviation to the soil particle size standard deviation threshold is determined as the first uniform characterization feature; determining a ratio of a humidity standard deviation mean to a humidity standard deviation threshold as a second uniform characterization feature; The first uniform characterization feature and the second uniform characterization feature are weighted and summed to obtain a soil-derived uniform characterization coefficient; Wherein, the reference line is parallel to at least one reference coordinate axis, and the reference line passes through at least two acquisition points; The formation simulation module selects reference sampling points, and determines the simulated formation characteristics of the virtual derived sampling points based on the formation characteristics of the reference sampling points, including: Determining the distance between the virtual derived sampling point and each of the sampling points; Arrange the serial numbers corresponding to each sampling point in ascending order according to the distance to obtain a sampling point sequence; A predetermined number of serial numbers are selected from the head end of the sampling point sequence, and sampling points corresponding to the selected serial numbers are determined as reference sampling points; The soil category with the largest proportion in each reference sampling point is determined as the soil category of the virtual derived sampling point; Determine the mean value of the soil particle size of each reference sampling point as the soil particle size of the virtual derived sampling point; Determine the humidity mean of each reference sampling point as the humidity of the virtual derived sampling point; The formation simulation module determines the process of characterizing the formation characteristics, including: The soil category with the largest proportion in each sampling point is determined as the soil category of each virtual derived sampling point; Determine the mean value of the soil particle size at each sampling point as the soil particle size at each virtual derived sampling point; The average humidity of each sampling point is determined as the humidity of the virtual derived sampling point.

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