A sample plot setting method and device

Abstract

The application provides a sample plot setting method and device, comprising the following steps: determining a base point in a to-be-investigated land; determining a plurality of positioning points with a preset distance from the base point based on a preset angle; and setting a unit sample plot in the to-be-investigated land according to all the positioning points. The sample plot setting method and device provided by the application have the advantages that the setting of the unit sample plot is completed through the determination of the base point and the positioning points, the practicability is high, the efficiency of sample plot setting is improved, the method is simple and easy to implement, and the required tools are few, so that the manpower and resources are effectively saved.

Description

Technical Field

[0001] The present invention relates to the technical field of forestry investigation, and in particular to a sample plot setting method and device. Background Art

[0002] During field surveys and monitoring of forest combustibles, it is often necessary to temporarily set up sample plots in order to determine basic data such as forest combustible types, combustible loads, and moisture content in the woodlands, laying the foundation for research on forest fire risk levels.

[0003] Currently, field sampling plots for forest fuels are primarily designed based on methods used in the second-tier forest resource surveys, typically using quadrat, circle, or polygon methods. This involves selecting the coordinates of a central point, manually setting a rectangle or square of a predetermined length, and then conducting research within the plot.

[0004] However, the above-mentioned plot setting method is time-consuming, labor-intensive and has low setting efficiency. Summary of the Invention

[0005] The present invention provides a sample plot setting method and device, which are used to solve the defects of the prior art that the method is time-consuming, labor-intensive and has low setting efficiency, thereby improving the efficiency of sample plot setting. The method is simple and easy to implement and requires few tools.

[0006] The present invention provides a sample plot setting method, comprising:

[0007] Determine base points in the plot to be surveyed;

[0008] Based on a preset angle, determining a plurality of positioning points spaced a preset distance from the base point;

[0009] Based on all the positioning points, unit plots are set up in the plot to be surveyed.

[0010] According to a sample plot setting method provided by the present invention, the method of determining a plurality of positioning points spaced a preset distance from the base point based on a preset angle includes:

[0011] Determine a first positioning point according to the preset distance; a line connecting the first positioning point and the base point is a baseline;

[0012] Taking the base point as a vertex, determining a positioning line having a preset angle with the baseline;

[0013] Determine a plurality of positioning lines whose included angles with the positioning line are preset angles;

[0014] A point on the baseline and each positioning line that is a preset distance away from the base point is determined as a positioning point.

[0015] According to a sample plot setting method provided by the present invention, setting a unit sample plot in the plot to be surveyed based on all the positioning points includes:

[0016] Connecting two adjacent positioning points to determine the scope of the unit plot; the unit plot is a regular polygon;

[0017] The area of ​​the unit plot is determined according to the preset distance and the preset angle.

[0018] The present invention further provides a sample plot setting device, which is applied to any of the above-mentioned sample plot setting methods, comprising: a ring-shaped member and a plurality of measuring members;

[0019] The multiple measuring pieces are arranged circumferentially relative to the center of the annular piece. One end of each measuring piece is detachably connected to the annular piece, and the other end of each measuring piece is divergent away from the center of the annular piece.

[0020] A sample plot setting device according to the present invention further includes a starting pile and a plurality of positioning piles; the starting pile is used to determine a base point, and the positioning piles are used to determine positioning points;

[0021] The annular member is used to be sleeved on the top of the starting pile;

[0022] The annular member is provided with a protractor; the protractor is used to measure the angle between the members;

[0023] Each positioning pile is detachably connected to the other end of each measuring piece.

[0024] According to a sample site setting device provided by the present invention, the bottom end of the body of the starting pile and the bottom end of the body of each positioning pile are provided with an insertion tip; the insertion tip is used to fix the body.

[0025] According to a sample site setting device provided by the present invention, the starting pile and the positioning pile are made of aluminum pipes or PVC pipes.

[0026] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any of the above-described setting methods when executing the program.

[0027] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which implements any of the above-described setting methods when executed by a processor.

[0028] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the setting method as described above is implemented.

[0029] The sample plot setting method and device provided by the present invention complete the setting of the unit sample plot by determining the base point and the positioning point. It is highly practical and improves the efficiency of sample plot setting. The method is simple and easy to implement, requires few tools, and effectively saves manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a flow chart of the sample plot setting method provided by the present invention;

[0032] Figure 2 This is one of the top plan schematic diagrams of the sample plot setting method provided by the present invention;

[0033] Figure 3 This is the second schematic top view of the sample plot setting method provided by the present invention;

[0034] Figure 4 This is the third top plan view schematic diagram of the sample plot setting method provided by the present invention;

[0035] Figure 5 This is the fourth top plan view schematic diagram of the sample plot setting method provided by the present invention;

[0036] Figure 6 It is a structural schematic diagram of the sample plot setting device provided by the present invention;

[0037] Figure 7 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0039] The laser plot setting device for forest plots can quickly and clearly mark plot boundaries, effectively improving plot setting efficiency. However, the device is easily obstructed by standing trees, resulting in intermittent boundaries. This makes it impractical, especially in densely wooded areas, significantly impacting plot estimation accuracy.

[0040] The application is described below Figures 1 to 7 The plot setting method and device provided by the embodiments of the application are described.

[0041] Figure 1 The flowchart of the plot setting method provided by the application is shown in Figure 1 The plot setting method provided by the application includes but is not limited to the following steps:

[0042] First, in step S1, a base point is determined in the plot to be investigated.

[0043] Specifically, according to the actual terrain and investigation and monitoring requirements, a point in the plot to be investigated is determined as the base point, which can be a tree trunk in the forest or a positioning stake.

[0044] Further, in step S2, a plurality of positioning points spaced apart from the base point by a preset distance are determined based on a preset angle.

[0045] Starting from the base point, a plurality of lines with a preset distance are drawn in the horizontal direction, and the endpoints of the lines are the positioning points. The included angle between every two lines is the preset angle. Using the same preset distance can reduce the calculation complexity of the area of the unit plot.

[0046] The preset angle is set according to the actual workload and accuracy requirements. The larger the preset angle, the lower the workload of setting the unit plot and the lower the accuracy of area calculation. The smaller the preset angle, the higher the workload of setting the unit plot and the higher the accuracy of area calculation.

[0047] The preset distance is determined according to the actual plot area size requirements. The larger the preset distance, the larger the area of the set plot. The smaller the preset distance, the smaller the area of the set plot. The number of positioning points can be set to 8 to 10. When the area of the unit plot to be set is larger, the number of positioning points can be set to 10 to 12.

[0048] Further, in step S3, a unit plot is set in the plot to be investigated according to all the positioning points.

[0049] Connecting two adjacent positioning points can form a regular polygon unit plot in the plot to be investigated. Steps S1 to S3 can be repeated to set a plurality of unit plots in the plot to be investigated.

[0050] The plot setting method provided by the application determines the base point and the positioning point, and then sets the unit plot, which is practical, improves the efficiency of plot setting, and is simple and easy to implement, requires less tools, and effectively saves manpower and resources.

[0051] Figure 2This is one of the top plan views of the sample plot setting method provided by the present invention, as shown in FIG. Figure 2 As shown, select any point O1 as the reference point, extend the measurement in two perpendicular directions with this point as the center, find the four vertices A1, B1, C1 and D1 of the four sides of the sample, and then set the sample with these four vertices.

[0052] Figure 3 This is the second top plan view of the sample plot setting method provided by the present invention, as shown in FIG. Figure 3 As shown, select any corner point A2 and, using A2 as a reference, extend two mutually perpendicular lines and measure the required lengths to determine the other two corner points, B2 and C2. Then, using corner point B2 as a reference, extend a line perpendicular to A2B2, and using corner point C2 as a reference, extend a line perpendicular to A2C2. The intersection of these two perpendicular lines is determined as the fourth corner point, D2. Sample plots are then set up using these four corner points. However, corner angles are difficult to control in the wild and are easily restricted by the tree environment. Therefore, 90-degree angles cannot be accurately measured, resulting in large errors in sample plot setting.

[0053] Figure 4 This is the third top plan view of the sample plot setting method provided by the present invention, as shown in FIG. Figure 4 As shown, first determine the center point O3, then extend the radius outward from it to find the outer point A3 of the sample circle, then circle around to determine B3 and C3, and record the outer arc trajectory, such as the AB arc. In the case of obstruction by standing trees, it is necessary to re-pull the line from the center point for measurement. Finally, through multiple measurements, the sample circle arc trajectory is determined and the sample circle and sample plot are set. This method requires the assistance of multiple people, and when encountering obstruction by standing trees, it is necessary to re-pull the line for radius measurement, which is time-consuming and labor-intensive. In addition, the arc is difficult to locate and set in the field, which brings setting errors to the measurement accuracy. In forest areas with relatively dense vegetation or large slopes, setting sample plots is difficult and the quality cannot be guaranteed, making it less practical.

[0054] The above three methods are time-consuming and labor-intensive when setting up the sample plots, and require the assistance of multiple people. In response to the problems that arise with the above methods, Figure 5 This is the fourth top plan view of the sample plot setting method provided by the present invention, as shown in FIG. Figure 5 As shown, first determine the base point, then extend it outward by a preset distance, determine point a as the first positioning point, and then extend two lines with a preset distance according to a preset angle to determine points b and h respectively. In this way, points c, d, e, f and g can be determined, and then connect points a, b, c, d, e, f, g and h in sequence to obtain the set unit plot. The method is simple and can be completed by only one person.

[0055] Optionally, determining a plurality of positioning points spaced a preset distance from the base point based on a preset angle includes:

[0056] Determine a first positioning point according to the preset distance; a line connecting the first positioning point and the base point is a baseline;

[0057] Taking the base point as a vertex, a positioning line is determined, the angle between the positioning line and the baseline being a preset angle;

[0058] Determine a plurality of positioning lines whose included angles with the positioning line are preset angles;

[0059] A point on the baseline and each positioning line that is a preset distance away from the base point is determined as a positioning point.

[0060] The preset distance may be the distance between the base point and point a, the first positioning point being point a, and the line connecting the base point and point a being the baseline.

[0061] With the base point as the vertex, two lines whose included angles with the baseline are both preset angles are determined as positioning lines, and points b and h are determined on each positioning line, each of which is a preset distance from the base point on the horizontal plane. Multiple positioning lines are determined, and positioning points c, d, e, f and g are determined on the positioning lines respectively.

[0062] Optionally, setting up unit plots in the plot to be surveyed based on all the positioning points includes:

[0063] Connecting two adjacent positioning points to determine the scope of the unit plot; the unit plot is a regular polygon;

[0064] The area of ​​the unit plot is determined according to the preset distance and the preset angle.

[0065] By connecting points a, b, c, d, e, f, g and h in sequence, a set unit plot can be obtained. The method is simple and can be completed by one person.

[0066] According to the plot setting method provided by the present invention, a regular polygonal unit plot is set by determining points, the area calculation of the plot is simple, and the work efficiency is high.

[0067] The sample plot setting device provided by the present invention is described below. The sample plot setting device described below and the sample plot setting method described above can be referenced to each other.

[0068] Figure 6 Schematic diagram of the structure of the sample site setting device provided by the present invention, such as Figure 6 As shown, the sample site setting device applied to any embodiment of the above-mentioned sample site setting method includes: a ring-shaped member 1 and a plurality of measuring members 2;

[0069] The multiple measuring pieces are arranged circumferentially relative to the center of the annular piece. One end of each measuring piece is detachably connected to the annular piece, and the other end of each measuring piece is divergent away from the center of the annular piece.

[0070] Optionally, the sample plot setting device further comprises a starting pile and a plurality of positioning piles; the starting pile is used to determine the base point, and the positioning piles are used to determine the positioning points;

[0071] The annular member is used to be sleeved on the top of the starting pile;

[0072] The annular member is provided with a protractor; the protractor is used to measure the angle between the members;

[0073] Each positioning pile is detachably connected to the other end of each measuring piece.

[0074] Optionally, the bottom end of the body of the starting pile and the bottom end of the body of each positioning pile are provided with an insertion tip; the insertion tip is used to fix the body.

[0075] Optionally, the starting pile and the positioning pile are made of aluminum pipes or PVC pipes.

[0076] The ring is an openable, adjustable, flexible piece, such as a hemp rope. In practice, it can be tied around a tree branch, a wooden stick, or a cylindrical object like a starting stake, with the center of the ring serving as the base point. The starting stake's insertion point can be inserted into the ground to secure the starting stake, supporting the proper setup of the sample plot.

[0077] The measuring piece can be a radius ruler, with a set number of 8 to 10. When the area of ​​the unit sample plot to be set is large, the number of radius rulers can be set to 10 to 12, and the number can be increased as the preset distance increases. One end of the measuring piece is tied to the ring piece, and the extension direction of the measuring piece is determined by a protractor. A point on the measuring piece that is a preset distance from the base point is determined as the positioning point. The positioning point can be marked with a positioning stake.

[0078] The sample plot setting device provided by the present invention completes the setting of a unit sample plot by determining the base point and the positioning point, has strong practicality, improves the efficiency of sample plot setting, is simple and easy to implement, requires few tools, and effectively saves manpower and material resources.

[0079] Figure 7 Schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 7As shown, the electronic device may include: a processor 710, a communications interface 720, a memory 730, and a communication bus 740, wherein the processor 710, the communications interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 may call logic instructions in the memory 730 to execute a sample plot setting method, which includes: determining a base point in the plot to be surveyed; determining multiple positioning points spaced at a preset distance from the base point based on a preset angle; and setting a unit sample plot in the plot to be surveyed based on all the positioning points.

[0080] In addition, the logic instructions in the above-mentioned memory 730 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0081] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the sample plot setting method provided by the above methods, which includes: determining a base point in the plot to be surveyed; based on a preset angle, determining multiple positioning points that are spaced a preset distance from the base point; and setting a unit sample plot in the plot to be surveyed based on all the positioning points.

[0082] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the sample plot setting method provided by the above methods, the method comprising: determining a base point in the plot to be surveyed; based on a preset angle, determining multiple positioning points that are spaced a preset distance from the base point; and setting a unit sample plot in the plot to be surveyed based on all the positioning points.

[0083] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0084] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for setting up a sample plot, characterized in that: include: Determine base points in the plot to be surveyed; Based on a preset angle, determining a plurality of positioning points spaced a preset distance from the base point; According to all the positioning points, unit plots are set up in the plot to be surveyed; The unit plot is a regular polygon, and the number of positioning points ranges from 8 to 12; First, determine the base point, then extend the preset distance outward from it, determine point a as the first positioning point, then extend two lines with preset lengths according to the preset angle to determine points b and h respectively, and determine points c, d, e, f, and g, and then connect points a, b, c, d, e, f, g, and h in sequence to obtain the set unit plot; The preset distance is the distance between the base point and point a. The first positioning point is point a, and the line between the base point and point a is the baseline. With the base point as the vertex, two lines whose included angles with the baseline are both preset angles are determined as positioning lines. On each positioning line, points b and h are determined on the horizontal plane at a preset distance from the base point. Multiple positioning lines are determined, and positioning points c, d, e, f, and g are determined on the positioning lines respectively. Connect points a, b, c, d, e, f, g and h in sequence to obtain the set unit plot, which can be completed by one person.

2. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the setting method according to claim 1 is implemented.

3. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the setting method according to claim 1 is implemented.

4. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the setting method according to claim 1 is implemented.

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