Method and system for improving geological disaster monitoring precision

Abstract

The invention relates to the technical field of geological disaster monitoring, and discloses a method and system for improving geological disaster monitoring precision, and the method comprises the steps: carrying out the surveying and mapping of a monitoring region, obtaining a plane monitoring graph, setting a point taking interval, selecting a mark point, calculating a connection line, and determining a mark connection line and a straight line coverage region; then, further densifying the acquisition points by setting a vertical line and an auxiliary straight line to form displacement measurement points; during monitoring, coordinates of each measuring point are obtained and compared with initial coordinates, if deviation is found, the measuring points are marked as abnormal points, and an abnormal detection area is delimited through the deviation direction; and further dividing abnormal regions, analyzing the displacement of each sub-region, and finally determining a polar displacement point and drawing a crack position, so that the method can effectively improve the slope displacement monitoring precision.

Description

Technical Field

[0001] The present invention relates to the technical field of geological disaster monitoring, and in particular to a method and system for improving the accuracy of geological disaster monitoring. Background Art

[0002] Geological disaster monitoring technology is an important means to ensure the safety of slope areas. Its purpose is to timely discover possible disaster risks through accurate displacement monitoring. With the frequent occurrence of geological disasters, the requirements for monitoring accuracy and efficiency are constantly increasing. At present, there are various technical means for slope monitoring, but how to improve monitoring accuracy and coverage is still a problem that needs to be solved urgently in the industry. Existing monitoring methods mainly include traditional manual observation, monitoring based on optical or laser measurement, and monitoring through GNSS global navigation satellite system and ground radar technology. Although these methods can meet basic monitoring needs to a certain extent, they have certain limitations, mainly in terms of accuracy, coverage and real-time performance.

[0003] In traditional manual observation, regular inspections and data collection are carried out manually on site. Although the operation is simple, it is difficult to obtain high-precision data and there are certain safety hazards. In addition, the frequency of manual monitoring is low, which may lead to the missing of some small-scale displacements or disaster signs, affecting the timeliness of early warning. On the other hand, although optical or laser measurement technology can provide more accurate distance measurement and terrain change information, this method is often limited by line of sight and weather conditions and cannot work stably for a long time in complex environments. GNSS technology can provide more accurate displacement data, but because the signal is greatly affected by the terrain, it is often impossible to achieve efficient positioning in places with complex terrain such as valleys and canyons, which limits its scope of application. In addition, the cost of GNSS equipment itself is high and it places high requirements on maintenance and management.

[0004] At present, automated and intelligent monitoring methods have become a new development direction. Technology based on multi-point monitoring has been widely used. By setting multiple monitoring points in the slope area, the accuracy and coverage of monitoring can be improved. However, traditional multi-point monitoring technology generally measures all monitoring points completely and then analyzes them based on the measurement data. This full measurement method increases the time required for monitoring to a certain extent. For this reason, the present invention proposes a method for sequentially measuring the monitoring points and comparing the monitoring points in real time during the measurement process. After the abnormal monitoring points are found, the monitoring points that may cause abnormalities are measured first according to the offset direction of the abnormal monitoring points, thereby improving the detection efficiency. Summary of the invention

[0005] The present invention provides a method and system for improving the accuracy of geological disaster monitoring, which helps solve the problems mentioned in the above background technology.

[0006] The present invention provides the following technical solution: a method for improving the accuracy of geological disaster monitoring, comprising:

[0007] The slope area where geological disaster monitoring is carried out shall be recorded as the monitoring area;

[0008] Densely set displacement measurement points within the monitoring area;

[0009] Set up displacement reference points outside the monitoring area;

[0010] Monitor the displacement measurement points to determine whether displacement occurs in the monitoring area;

[0011] The densely arranged displacement measurement points in the monitoring area include:

[0012] Use the surveying and mapping module to survey the monitoring area, obtain a plan view of the detection area, and record it as a plan monitoring map;

[0013] Set the distance between the points to be taken as A;

[0014] Obtain a marking point at every distance A on the image edge of the plane monitoring image;

[0015] Select one marking point on the edge of the image of the plane monitoring image each time, and connect the marking point with other marking points in pairs to form a connecting line;

[0016] Traverse all the marked points until each marked point is selected once;

[0017] Get the lengths of all existing connecting lines and compare them;

[0018] Select the longest connecting line and use it as the marking connecting line.

[0019] Optionally, densely setting displacement measurement points in the monitoring area further includes:

[0020] On the plane monitoring map, take the marked connecting line as the starting point, and draw a straight line parallel to the marked connecting line at a distance A on both sides of the marked connecting line, which are recorded as marked straight lines;

[0021] After each marked line:

[0022] Get the distance between each marked straight line and the marked connecting line, and compare them;

[0023] Obtain the marked straight lines that are farthest from the marked straight line on both sides of the marked connection line, and record the two obtained marked straight lines as far-end marked straight lines;

[0024] Get the area between the two distal marked straight lines, and record it as the marked straight line coverage area;

[0025] When the marked straight line coverage area completely covers the plane monitoring map, stop drawing the marked straight line.

[0026] Optionally, densely setting displacement measurement points in the monitoring area further includes:

[0027] Draw a straight line perpendicular to the marking connecting line and passing through the midpoint of the marking connecting line, and record it as the marking perpendicular line;

[0028] On the plane monitoring map, take the marked vertical line as the starting point, and draw a straight line parallel to the marked vertical line at a distance A on both sides of the marked vertical line, and record it as an auxiliary straight line;

[0029] After each auxiliary line is drawn:

[0030] Get the distance between each auxiliary straight line and the marked vertical line, and compare them;

[0031] Obtain auxiliary straight lines that are farthest from the auxiliary straight line on both sides of the marked vertical line, and record the two obtained auxiliary straight lines as distal auxiliary straight lines;

[0032] Get the area between the two distal auxiliary straight lines, and record it as the auxiliary straight line coverage area;

[0033] When the area covered by the auxiliary straight lines completely covers the plane monitoring map, stop drawing the auxiliary straight lines.

[0034] Optionally, densely setting displacement measurement points in the monitoring area further includes:

[0035] Obtain the intersection points formed by the intersection of all marked straight lines and auxiliary straight lines, and record them as reference intersection points;

[0036] Obtain a reference intersection point located in the plane monitoring map and record it as a selected reference intersection point;

[0037] According to the position of the selected reference intersection in the plane monitoring map, the position of the selected reference intersection in the monitoring area is correspondingly obtained, and the position of the selected intersection in the monitoring area is recorded as the collection point;

[0038] Each acquisition point is regarded as a displacement measurement point.

[0039] Optionally, monitoring the displacement measurement points to determine whether displacement occurs in the monitoring area includes:

[0040] In the plane monitoring map, draw a straight line that is tangent to the edge of the plane monitoring map and located below the plane monitoring map, and record it as the reference horizontal line;

[0041] In the plane monitoring map, obtain the vertical distance between each collection point and the reference horizontal line, and record the distance as the reference distance of the collection point;

[0042] According to the reference distance of each collection point, the collection points are numbered in order from long to short according to the length of the reference distance;

[0043] If there are collection points with the same reference distance, they will be numbered in sequence according to the numbering direction;

[0044] The numbering direction is specifically:

[0045] Draw two straight lines perpendicular to the reference horizontal line and tangent to the edge of the plane monitoring map, and select one of them as the first tangent line and the other as the second tangent line;

[0046] Obtain the intersection points of the first tangent line and the second tangent line with the reference horizontal line respectively, and record them as the first intersection point and the second intersection point respectively;

[0047] The direction from the first intersection point to the second intersection point is recorded as the numbering direction;

[0048] After completing the numbering of the acquisition points, the displacement measurement points corresponding to each acquisition point are obtained respectively, and the number of each acquisition point is used as the number of its corresponding displacement measurement point.

[0049] Optionally, monitoring the displacement measurement points to determine whether displacement occurs in the monitoring area includes:

[0050] A spatial rectangular coordinate system is established with the displacement reference point as the origin, and the X-axis and Y-axis of the spatial rectangular coordinate system are located on the same horizontal plane;

[0051] After completing the setting of the displacement measurement points in the monitoring area, the coordinates of each displacement measurement point in the spatial rectangular coordinate system are recorded respectively, and recorded as the initial coordinates of each displacement measurement point;

[0052] When it is necessary to collect monitoring data of geological disasters in the monitoring area:

[0053] According to the numbering sequence of the displacement measurement points, the coordinates of each displacement measurement point in the spatial rectangular coordinate system at the current moment are obtained in turn, and recorded as the current coordinates of the displacement measurement point;

[0054] Each time the current coordinates of a displacement measurement point are obtained, the current coordinates of the displacement measurement point are compared with its initial coordinates;

[0055] If the current coordinates of the displacement measurement point are the same as the initial coordinates, the current coordinates of the displacement measurement point with the next number are obtained in the order of numbers;

[0056] If the current coordinates of the displacement measurement point are different from the initial coordinates, the displacement measurement point is marked as an abnormal measurement point;

[0057] For an abnormal measurement point, the direction from its initial coordinates to the current coordinates is taken as the offset direction of the abnormal measurement point.

[0058] Optionally, the monitoring of the displacement measurement points to determine whether displacement occurs in the monitoring area further includes:

[0059] Obtain the collection point corresponding to the abnormal measurement point in the plane detection map, and record it as the abnormal collection point;

[0060] The offset direction of the abnormal measurement point is used as the offset direction of the abnormal acquisition point;

[0061] Through the abnormal acquisition point, draw a straight line perpendicular to the offset direction of the abnormal acquisition point, and record it as the abnormal reference straight line;

[0062] Set the distance interval used to demarcate the anomaly detection area, denoted as Z;

[0063] In the plane monitoring diagram, draw a straight line parallel to the abnormal reference line on both sides of the abnormal reference line, and make the distance between the straight line and the abnormal reference line equal to Z. The two straight lines are recorded as abnormal dividing lines.

[0064] Obtaining an area enclosed by two abnormality dividing lines and an edge line of the plane monitoring map on the plane monitoring map, and recording the area as an abnormality detection area;

[0065] Obtain all the acquisition points within the anomaly detection area, and obtain the displacement measurement point corresponding to each acquisition point, which is recorded as a marked measurement point;

[0066] Determine whether the marked measurement points have acquired their current coordinates;

[0067] If the marked measurement point has its current coordinates acquired, the marked measurement point will be deleted;

[0068] Otherwise, keep the marked measurement point.

[0069] Optionally, the monitoring of the displacement measurement points to determine whether displacement occurs in the monitoring area further includes:

[0070] Set the number of divisions used to specify the number of sub-anomaly regions, denoted as D;

[0071] Intercept a portion of the abnormal reference straight line that is located within the abnormal detection area, and record the segment as a dividing segment;

[0072] On the dividing line segment, set a dividing point at a certain distance, so that all the existing dividing points divide the dividing line segment into D equal parts;

[0073] Draw a perpendicular line through each dividing point and perpendicular to the abnormal reference line, and record it as the dividing perpendicular line;

[0074] The anomaly detection area is divided into D regions by vertical lines, and each region is regarded as a sub-anomaly region;

[0075] Obtain the sub-abnormal area where the abnormal acquisition point is located, and record it as the initial sub-abnormal area;

[0076] Obtain the center point of each sub-region respectively and record it as the regional center of the sub-abnormal region;

[0077] Obtain the distance between the regional center of each sub-anomaly region and the regional center of the initial sub-anomaly region respectively, and record it as the regional distance;

[0078] One side is selected from both sides of the deviation direction of the abnormal acquisition point as side 1, and the other side is selected as side 2;

[0079] For the sub-anomaly areas except the initial sub-anomaly area, the sub-anomaly areas are numbered in ascending order according to the area distance of the sub-anomaly areas. For the sub-anomaly areas with equal area distances, the sub-anomaly area located on the number one side is numbered first;

[0080] Obtain a direction perpendicular to the offset direction, recorded as the marking direction;

[0081] In each sub-anomaly area, the marked measurement points in the sub-anomaly area are traversed in sequence according to the offset direction and the marking direction, and the marked measurement points in the sub-anomaly area are numbered according to the traversal order, and recorded as the sub-anomaly area measurement number;

[0082] The displacement measurement points are monitored according to the numbers of the sub-anomaly areas and the sub-anomaly area measurement numbers within each sub-anomaly area.

[0083] Optionally, monitoring the displacement measurement points according to the numbers of the sub-abnormal regions and the sub-abnormal region measurement numbers in each sub-abnormal region includes:

[0084] Starting from the initial sub-anomaly region and following the numbering order of the other sub-anomaly regions, select each sub-anomaly region in turn;

[0085] When a sub-region is selected, each marked measurement point is selected in turn according to the measurement number sequence of the sub-anomaly region in which the marked measurement points are located within the sub-region;

[0086] When a marked measurement point is selected, the displacement measurement point corresponding to the marked measurement point is obtained in the monitoring area, and the coordinates of the displacement measurement point in the spatial rectangular coordinate system are obtained, and compared with the initial coordinates of the displacement measurement point to determine whether the coordinates are the same;

[0087] If the coordinates are the same, no processing is done;

[0088] If the coordinates are not the same, the distance between the current coordinates and the initial coordinates is obtained and recorded as the offset distance of the displacement measurement point;

[0089] Sequentially obtain the offset distance of the displacement measurement point corresponding to each marked measurement point in the abnormal detection area;

[0090] In each sub-anomaly detection area, the offset distances of the displacement measurement points corresponding to each marked measurement point are compared, and the displacement measurement point with the largest offset distance is selected and recorded as the extreme displacement point;

[0091] Connect each extreme displacement point in turn, and use the formed connection line as the location of the crack.

[0092] A system for implementing the method for improving the accuracy of geological disaster monitoring, comprising:

[0093] Displacement measurement point module: used to set displacement measurement points in the monitoring area;

[0094] Surveying and mapping module: used to survey the monitoring area and obtain the plane monitoring map of the detection area;

[0095] Grid division module: used to divide grids on the plane monitoring map and obtain collection points according to the divided grids;

[0096] Numbering module: used to number the acquisition points, sub-anomaly areas and marked measurement points;

[0097] Coordinate acquisition module: used to establish a spatial rectangular coordinate system in the monitoring area and obtain the coordinates of each displacement measurement point;

[0098] Region division module: used to divide the anomaly detection area into sub-anomaly areas.

[0099] The present invention has the following beneficial effects:

[0100] 1. The spatial coverage and measurement accuracy of the monitoring area can be improved by densely setting displacement measurement points; by reasonably arranging displacement measurement points, it can ensure that every part of the monitoring area is effectively monitored to avoid missing potential disaster risk areas; this high-density point distribution method can provide more detailed displacement data, which is helpful to discover small geological changes, timely warn and prevent disasters; in addition, this method makes the real-time monitoring of slope areas more accurate, especially in complex terrain and when hidden displacement occurs, it can quickly capture relevant signals, thereby ensuring the sensitivity and response speed of the monitoring system; this layout can also avoid misjudgment caused by deviations in a single measuring point and enhance the system's anti-interference ability.

[0101] 2. By setting displacement reference points outside the monitoring area, a benchmark and comparison can be provided for the monitoring data; as an external standard, the reference points can help determine the actual occurrence of displacement within the monitoring area and avoid interference from factors such as terrain and climate; the setting of reference points helps to distinguish between local displacement and widespread changes, ensuring the accuracy of monitoring data; with the help of reference points, the system can compare changes inside and outside the area in real time and identify potential hazards; the introduction of reference points helps to improve data consistency and avoid data deviations caused by differences in the measurement environment; by comparing with reference points, abnormalities in monitoring points can be discovered in a timely manner and problems can be quickly located.

[0102] 3. Obtaining the plane monitoring map through the surveying and mapping module provides intuitive map support for the layout of displacement measurement points; the plane monitoring map can help monitoring personnel understand the spatial distribution and boundaries of the monitoring area and provide a clearer global vision; the map provides an important basis for subsequent point layout; when using the plane map for point layout design, the location of the measurement point can be accurately selected to ensure that the measurement points evenly cover the entire monitoring area; the plane map can effectively improve the measurement accuracy, reduce manual point layout errors, and improve measurement efficiency.

[0103] 4. Numbering the displacement measurement points helps to achieve accurate monitoring and data management; numbering can clearly identify each measurement point, which is convenient for quick positioning during data collection, analysis and subsequent tracking; numbering can also clarify the order of measurement points and the measurement process, reducing confusion and omissions in data collection; this numbering system ensures that the data of each measurement point can be recorded and analyzed separately, improving data traceability.

[0104] 5. By immediately defining the anomaly detection area according to the offset direction when the abnormal collection point is first discovered, it is possible to effectively focus on the potential risk area and improve the pertinence and accuracy of monitoring; the offset direction of the abnormal collection point may be the direction of the crack. By defining the anomaly detection area according to this direction, the divided anomaly detection area can cover the crack area with the greatest probability, thereby quickly locating the area where the disaster occurs; this method can avoid unnecessary extensive monitoring, save resources and reduce interference. By defining the anomaly detection area by the offset direction, the sensitivity of anomaly detection can be improved, and the system can respond to geological changes more quickly and accurately, thereby ensuring early detection and timely handling of disasters.

[0105] 6. By defining anomaly detection areas, it is possible to concentrate resources for high-density monitoring of specific areas where displacement may occur, thereby improving the early detection of disasters. This method effectively avoids unnecessary monitoring of the entire area, thereby saving monitoring costs. By defining anomaly detection areas, the system can prioritize monitoring of areas where anomalies occur, thereby improving monitoring efficiency. Centralized monitoring within anomaly detection areas can improve the validity and reliability of data. The definition of anomaly areas can also help monitoring personnel quickly locate the core areas where disasters occur, shorten emergency response time, and take preventive measures in a timely manner. By setting up anomaly detection areas, the system can achieve higher-precision monitoring and data analysis, providing support for disaster warning and decision-making.

[0106] 7. By detecting the sub-anomaly areas from the initial sub-anomaly area to both sides from near to far, it is possible to ensure that priority is given to the area closest to the anomaly source, so that potential disaster development trends can be identified and responded to more promptly and effectively; in this way, the monitoring system can quickly capture the area where displacement is most likely to occur, discover and locate risk points in advance, thereby improving the accuracy of disaster warnings and the timeliness of responses; in addition, this detection order can optimize the allocation of monitoring resources, avoid premature detection of distant areas, ensure that limited resources are concentrated in high-risk areas, and help complete monitoring tasks more efficiently.

[0107] 8. By selecting extreme displacement points to determine the location of cracks, the key areas where disasters occur can be identified with the highest probability and the source of danger can be quickly located. As the most significant displacement indicator, extreme displacement points can help monitoring personnel confirm the outbreak point and propagation path of disasters. This method helps to determine the specific direction and scale of cracks and further analyze the development trend of disasters. Data analysis during the selection of extreme displacement points can provide higher accuracy for disaster warning and avoid misjudgment. Through this method, the monitoring system can promptly detect the early signs of geological disasters and provide a basis for the activation of the early warning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] Figure 1 This is a schematic diagram of the marking connection lines of the present invention.

[0109] Figure 2 It is a schematic diagram of the abnormal reference straight line of the present invention.

[0110] Figure 3 Schematic diagram of the abnormality detection area of ​​the present invention.

[0111] Figure 4 It is a schematic diagram of dividing vertical lines of the present invention. DETAILED DESCRIPTION

[0112] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0113] Embodiment 1, a method for improving the accuracy of geological disaster monitoring, comprising:

[0114] The slope area where geological disaster monitoring is carried out shall be recorded as the monitoring area;

[0115] Displacement measurement points are densely set up in the monitoring area; by densely setting up displacement measurement points, the spatial coverage and measurement accuracy in the monitoring area can be improved; by reasonably arranging the displacement measurement points, it can be ensured that every part of the monitoring area is effectively monitored to avoid missing potential disaster risk areas; this high-density point distribution method can provide more detailed displacement data, which is helpful to discover tiny geological changes, issue timely warnings, and prevent disasters; in addition, this method makes real-time monitoring of slope areas more accurate, especially in complex terrain and when hidden displacement occurs, it can quickly capture relevant signals, thereby ensuring the sensitivity and response speed of the monitoring system; this layout can also avoid misjudgments caused by deviations in a single measuring point and enhance the system's anti-interference ability.

[0116] Displacement reference points are set outside the monitoring area. By setting displacement reference points outside the monitoring area, a benchmark and comparison can be provided for the monitoring data. As external standards, reference points can help determine the actual occurrence of displacement within the monitoring area and avoid interference from factors such as terrain and climate. The setting of reference points helps to distinguish between local displacement and widespread changes, ensuring the accuracy of monitoring data. With the help of reference points, the system can compare changes inside and outside the area in real time and identify potential hazards. The introduction of reference points helps to improve data consistency and avoid data deviations due to differences in the measurement environment. By comparing with reference points, abnormalities in monitoring points can be discovered in a timely manner and problems can be located quickly.

[0117] Monitor the displacement measurement points to determine whether displacement occurs in the monitoring area;

[0118] The densely arranged displacement measurement points in the monitoring area include:

[0119] Reference Figure 1, use the surveying and mapping module to survey the monitoring area, obtain the plan view of the detection area, and record it as a plane monitoring map; obtain the plane monitoring map through the surveying and mapping module, which provides intuitive map support for the layout of displacement measurement points; the plane monitoring map can help monitoring personnel understand the spatial distribution and boundaries of the monitoring area and provide a clearer global vision; the map provides an important basis for subsequent point layout; when using the plane map for point layout design, the location of the measurement point can be accurately selected to ensure that the measurement points evenly cover the entire monitoring area; the plane map can effectively improve the measurement accuracy, reduce the error of manual point layout, and improve the measurement efficiency.

[0120] Set the distance between the points to be taken as A;

[0121] Obtain a marking point at every distance A on the image edge of the plane monitoring image;

[0122] Select one marking point on the edge of the image of the plane monitoring image each time, and connect the marking point with other marking points in pairs to form a connecting line;

[0123] Traverse all the marked points until each marked point is selected once;

[0124] Get the lengths of all existing connecting lines and compare them;

[0125] Reference Figure 1 , select the longest connecting line and use it as the marking connecting line.

[0126] The densely arranged displacement measurement points in the monitoring area also include:

[0127] On the plane monitoring map, take the marked connecting line as the starting point, and draw a straight line parallel to the marked connecting line at a distance A on both sides of the marked connecting line, which are recorded as marked straight lines;

[0128] After each marked line:

[0129] Get the distance between each marked straight line and the marked connecting line, and compare them;

[0130] Obtain the marked straight lines that are farthest from the marked straight line on both sides of the marked connection line, and record the two obtained marked straight lines as far-end marked straight lines;

[0131] Get the area between the two distal marked straight lines, and record it as the marked straight line coverage area;

[0132] When the marked straight line coverage area completely covers the plane monitoring map, stop drawing the marked straight line.

[0133] The densely arranged displacement measurement points in the monitoring area also include:

[0134] Reference Figure 1 , draw a straight line perpendicular to the marking connection line and passing through the midpoint of the marking connection line, and record it as the marking vertical line;

[0135] On the plane monitoring map, take the marked vertical line as the starting point, and draw a straight line parallel to the marked vertical line at a distance A on both sides of the marked vertical line, and record it as an auxiliary straight line;

[0136] After each auxiliary line is drawn:

[0137] Get the distance between each auxiliary straight line and the marked vertical line, and compare them;

[0138] Obtain auxiliary straight lines that are farthest from the auxiliary straight line on both sides of the marked vertical line, and record the two obtained auxiliary straight lines as distal auxiliary straight lines;

[0139] Get the area between the two distal auxiliary straight lines, and record it as the auxiliary straight line coverage area;

[0140] When the area covered by the auxiliary straight lines completely covers the plane monitoring map, stop drawing the auxiliary straight lines.

[0141] The densely arranged displacement measurement points in the monitoring area also include:

[0142] Obtain the intersection points formed by the intersection of all marked straight lines and auxiliary straight lines, and record them as reference intersection points;

[0143] Obtain a reference intersection point located in the plane monitoring map and record it as a selected reference intersection point;

[0144] According to the position of the selected reference intersection in the plane monitoring map, the position of the selected reference intersection in the monitoring area is correspondingly obtained, and the position of the selected intersection in the monitoring area is recorded as the collection point;

[0145] Each acquisition point is regarded as a displacement measurement point.

[0146] The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area includes:

[0147] Reference Figure 1 , in the plane monitoring map, draw a straight line that is tangent to the edge of the plane monitoring map and is located below the plane monitoring map, and record it as the reference horizontal line;

[0148] In the plane monitoring map, obtain the vertical distance between each collection point and the reference horizontal line, and record the distance as the reference distance of the collection point;

[0149] According to the reference distance of each collection point, the collection points are numbered in order from long to short according to the length of the reference distance;

[0150] If there are collection points with the same reference distance, they will be numbered in sequence according to the numbering direction;

[0151] The numbering direction is specifically:

[0152] Reference Figure 1 , draw two straight lines perpendicular to the reference horizontal line and tangent to the edge of the plane monitoring map, and record one of them as the first tangent line and the other as the second tangent line;

[0153] Obtain the intersection points of the first tangent line and the second tangent line with the reference horizontal line respectively, and record them as the first intersection point and the second intersection point respectively;

[0154] The direction from the first intersection point to the second intersection point is recorded as the numbering direction;

[0155] After completing the numbering of the collection points, obtain the displacement measurement points corresponding to each collection point, and use the number of each collection point as the number of its corresponding displacement measurement point. Numbering the displacement measurement points helps to achieve accurate monitoring and data management; the numbering can clearly identify each measurement point, which is convenient for rapid positioning in data collection, analysis and later tracking; the numbering can also clarify the order of the measurement points and the measurement process, reducing confusion and omissions in data collection; this numbering system ensures that the data of each measurement point can be recorded and analyzed separately, improving the traceability of the data.

[0156] The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area includes:

[0157] A spatial rectangular coordinate system is established with the displacement reference point as the origin, and the X-axis and Y-axis of the spatial rectangular coordinate system are located on the same horizontal plane;

[0158] After completing the setting of the displacement measurement points in the monitoring area, the coordinates of each displacement measurement point in the spatial rectangular coordinate system are recorded respectively, and recorded as the initial coordinates of each displacement measurement point;

[0159] When it is necessary to collect monitoring data of geological disasters in the monitoring area:

[0160] According to the numbering sequence of the displacement measurement points, the coordinates of each displacement measurement point in the spatial rectangular coordinate system at the current moment are obtained in turn, and recorded as the current coordinates of the displacement measurement point;

[0161] Each time the current coordinates of a displacement measurement point are obtained, the current coordinates of the displacement measurement point are compared with its initial coordinates;

[0162] If the current coordinates of the displacement measurement point are the same as the initial coordinates, the current coordinates of the displacement measurement point with the next number are obtained in the order of numbers;

[0163] If the current coordinates of the displacement measurement point are different from the initial coordinates, the displacement measurement point is marked as an abnormal measurement point;

[0164] For an abnormal measurement point, the direction from its initial coordinates to the current coordinates is taken as the offset direction of the abnormal measurement point.

[0165] The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area also includes:

[0166] Reference Figure 2 , obtain the corresponding collection point of the abnormal measurement point in the plane detection map, and record it as the abnormal collection point; by immediately demarcating the abnormal detection area according to the offset direction when the abnormal collection point is first discovered, it can effectively focus on the potential risk area and improve the pertinence and accuracy of monitoring; the offset direction of the abnormal collection point may be the direction of the crack. Demarcating the abnormal detection area according to this direction can make the divided abnormal detection area cover the crack area with the maximum probability, and then quickly locate the area where the disaster occurs; this method can avoid unnecessary extensive monitoring, save resources and reduce interference. Demarcating the abnormal detection area by the offset direction can improve the sensitivity of anomaly detection, make the system respond to geological changes more quickly and accurately, thereby ensuring early detection and timely handling of disasters.

[0167] The offset direction of the abnormal measurement point is used as the offset direction of the abnormal acquisition point;

[0168] Through the abnormal acquisition point, draw a straight line perpendicular to the offset direction of the abnormal acquisition point, and record it as the abnormal reference straight line;

[0169] Set the distance interval used to demarcate the anomaly detection area, denoted as Z;

[0170] In the plane monitoring diagram, draw a straight line parallel to the abnormal reference line on both sides of the abnormal reference line, and make the distance between the straight line and the abnormal reference line equal to Z. The two straight lines are recorded as abnormal dividing lines.

[0171] Reference Figure 3, obtain the area enclosed by the two abnormal dividing lines and the edge line of the plane monitoring map on the plane monitoring map, and record the area as the abnormal detection area; by defining the abnormal detection area, it can help concentrate resources to conduct high-density monitoring of specific areas where displacement may occur, thereby improving the early detection of disasters; this method effectively avoids unnecessary monitoring of the entire area, thereby saving monitoring costs; by defining the abnormal detection area, the system can give priority to key monitoring of areas where abnormalities occur, thereby improving monitoring efficiency; centralized monitoring within the abnormal detection area can improve the validity and reliability of the data; the delineation of the abnormal area can also help monitoring personnel quickly locate the core area where the disaster occurs, shorten the emergency response time, and take preventive measures in a timely manner; by setting the abnormal detection area, the system can achieve higher-precision monitoring and data analysis, and provide support for disaster warning and decision-making.

[0172] Obtain all the acquisition points within the anomaly detection area, and obtain the displacement measurement point corresponding to each acquisition point, which is recorded as a marked measurement point;

[0173] Determine whether the marked measurement points have acquired their current coordinates;

[0174] If the marked measurement point has its current coordinates acquired, the marked measurement point will be deleted;

[0175] Otherwise, keep the marked measurement point.

[0176] The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area also includes:

[0177] Set the number of divisions used to specify the number of sub-anomaly regions, denoted as D;

[0178] Intercept a portion of the abnormal reference straight line that is located within the abnormal detection area, and record the segment as a dividing segment;

[0179] On the dividing line segment, set a dividing point at a certain distance, so that all the existing dividing points divide the dividing line segment into D equal parts;

[0180] Reference Figure 4 , draw a perpendicular line through each dividing point and perpendicular to the abnormal reference line, and record it as the dividing perpendicular line;

[0181] The anomaly detection area is divided into D regions by vertical lines, and each region is regarded as a sub-anomaly region;

[0182] Obtain the sub-abnormal area where the abnormal collection point is located, and record it as the initial sub-abnormal area;

[0183] Obtain the center point of each sub-region respectively and record it as the regional center of the sub-abnormal region;

[0184] Obtain the distance between the regional center of each sub-anomaly region and the regional center of the initial sub-anomaly region respectively, and record it as the regional distance;

[0185] One side is selected from both sides of the deviation direction of the abnormal acquisition point as side 1, and the other side is selected as side 2;

[0186] For other sub-anomaly areas except the initial sub-anomaly area, they are numbered in order from small to large according to the area distance of the sub-anomaly areas. For sub-anomaly areas with equal area distances, the sub-anomaly area on the number one side is numbered first. By detecting the sub-anomaly areas from the initial sub-anomaly area to both sides from near to far, it can ensure that priority is given to the area closest to the anomaly source, so that potential disaster development trends can be identified and responded to more promptly and effectively. In this way, the monitoring system can quickly capture the area where displacement is most likely to occur, discover and locate risk points in advance, thereby improving the accuracy of disaster warnings and the timeliness of responses. In addition, this detection order can optimize the allocation of monitoring resources, avoid premature detection of distant areas, ensure that limited resources are concentrated in high-risk areas, and help complete monitoring tasks more efficiently.

[0187] Obtain a direction perpendicular to the offset direction, recorded as the marking direction;

[0188] In each sub-anomaly area, the marked measurement points in the sub-anomaly area are traversed in sequence according to the offset direction and the marking direction, and the marked measurement points in the sub-anomaly area are numbered according to the traversal order, and recorded as the sub-anomaly area measurement number;

[0189] The displacement measurement points are monitored according to the numbers of the sub-anomaly areas and the sub-anomaly area measurement numbers within each sub-anomaly area.

[0190] The monitoring of the displacement measurement points according to the numbers of the sub-abnormal regions and the sub-abnormal region measurement numbers in each sub-abnormal region includes:

[0191] Starting from the initial sub-anomaly region and following the numbering order of the other sub-anomaly regions, select each sub-anomaly region in turn;

[0192] When a sub-region is selected, each marked measurement point is selected in turn according to the measurement number sequence of the sub-anomaly region in which the marked measurement points are located within the sub-region;

[0193] When a marked measurement point is selected, the displacement measurement point corresponding to the marked measurement point is obtained in the monitoring area, and the coordinates of the displacement measurement point in the spatial rectangular coordinate system are obtained, and compared with the initial coordinates of the displacement measurement point to determine whether the coordinates are the same;

[0194] If the coordinates are the same, no processing is done;

[0195] If the coordinates are not the same, the distance between the current coordinates and the initial coordinates is obtained and recorded as the offset distance of the displacement measurement point;

[0196] Sequentially obtain the offset distance of the displacement measurement point corresponding to each marked measurement point in the abnormal detection area;

[0197] In each sub-anomaly detection area, the offset distances of the displacement measurement points corresponding to each marked measurement point are compared, and the displacement measurement point with the largest offset distance is selected and recorded as the extreme displacement point;

[0198] Connect each polar displacement point in turn, and use the formed connection line as the location of the crack. By selecting polar displacement points to determine the location of the crack, the key area where the disaster occurs can be identified with the highest probability, and the source of danger can be quickly located; polar displacement points, as the most significant displacement indicators, can help monitoring personnel confirm the outbreak point and propagation path of the disaster; this method helps to determine the specific direction and scale of the cracks, and further analyze the development trend of the disaster; data analysis in the polar displacement point selection process can provide higher accuracy for disaster warning and avoid misjudgment; through this method, the monitoring system can promptly detect the early signs of geological disasters and provide a basis for the activation of the early warning mechanism.

[0199] Embodiment 2, a system for implementing the method for improving the accuracy of geological disaster monitoring, comprises:

[0200] Displacement measurement point module: used to set displacement measurement points in the monitoring area;

[0201] Surveying and mapping module: used to survey the monitoring area and obtain the plane monitoring map of the detection area;

[0202] Grid division module: used to divide grids on the plane monitoring map and obtain collection points according to the divided grids;

[0203] Numbering module: used to number the acquisition points, sub-anomaly areas and marked measurement points;

[0204] Coordinate acquisition module: used to establish a spatial rectangular coordinate system in the monitoring area and obtain the coordinates of each displacement measurement point;

[0205] Region division module: used to divide the anomaly detection area into sub-anomaly areas.

[0206] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0207] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for improving the accuracy of geological disaster monitoring, characterized in that: include: The slope area where geological disaster monitoring is carried out shall be recorded as the monitoring area; Densely set displacement measurement points within the monitoring area; Set up displacement reference points outside the monitoring area; Monitor the displacement measurement points to determine whether displacement occurs in the monitoring area; The densely arranged displacement measurement points in the monitoring area include: Use the surveying and mapping module to survey the monitoring area, obtain a plan view of the detection area, and record it as a plan monitoring map; Set the distance between the points to be taken as A; Obtain a marking point at every distance A on the image edge of the plane monitoring image; Select one marking point on the edge of the image of the plane monitoring image each time, and connect the marking point with other marking points in pairs to form a connecting line; Traverse all the marked points until each marked point is selected once; Get the lengths of all existing connecting lines and compare them; Select the longest connecting line and use it as the marking connecting line.

2. A method for improving the accuracy of geological disaster monitoring according to claim 1, characterized in that: The densely arranged displacement measurement points in the monitoring area also include: On the plane monitoring map, take the marked connecting line as the starting point, and draw a straight line parallel to the marked connecting line at a distance A on both sides of the marked connecting line, which are recorded as marked straight lines; After each marked line: Get the distance between each marked straight line and the marked connecting line, and compare them; Obtain the marked straight lines that are farthest from the marked straight line on both sides of the marked connection line, and record the two obtained marked straight lines as far-end marked straight lines; Get the area between the two distal marked straight lines, and record it as the marked straight line coverage area; When the marked straight line coverage area completely covers the plane monitoring map, stop drawing the marked straight line.

3. A method for improving the accuracy of geological disaster monitoring according to claim 1, characterized in that: The densely arranged displacement measurement points in the monitoring area also include: Draw a straight line perpendicular to the marking connecting line and passing through the midpoint of the marking connecting line, and record it as the marking perpendicular line; On the plane monitoring map, take the marked vertical line as the starting point, and draw a straight line parallel to the marked vertical line at a distance A on both sides of the marked vertical line, and record it as an auxiliary straight line; After each auxiliary line is drawn: Get the distance between each auxiliary straight line and the marked vertical line, and compare them; Obtain auxiliary straight lines that are farthest from the auxiliary straight line on both sides of the marked vertical line, and record the two obtained auxiliary straight lines as distal auxiliary straight lines; Get the area between the two distal auxiliary straight lines, and record it as the auxiliary straight line coverage area; When the area covered by the auxiliary straight lines completely covers the plane monitoring map, stop drawing the auxiliary straight lines.

4. A method for improving the accuracy of geological disaster monitoring according to claim 1, characterized in that: The densely arranged displacement measurement points in the monitoring area also include: Obtain the intersection points formed by the intersection of all marked straight lines and auxiliary straight lines, and record them as reference intersection points; Obtain a reference intersection point located in the plane monitoring map and record it as a selected reference intersection point; According to the position of the selected reference intersection in the plane monitoring map, the position of the selected reference intersection in the monitoring area is correspondingly obtained, and the position of the selected intersection in the monitoring area is recorded as the collection point; Each acquisition point is regarded as a displacement measurement point.

5. A method for improving the accuracy of geological disaster monitoring according to claim 1, characterized in that: The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area includes: In the plane monitoring map, draw a straight line that is tangent to the edge of the plane monitoring map and located below the plane monitoring map, and record it as the reference horizontal line; In the plane monitoring map, obtain the vertical distance between each collection point and the reference horizontal line, and record the distance as the reference distance of the collection point; According to the reference distance of each collection point, the collection points are numbered in order from long to short according to the length of the reference distance; If there are collection points with the same reference distance, they will be numbered in sequence according to the numbering direction; The numbering direction is specifically: Draw two straight lines perpendicular to the reference horizontal line and tangent to the edge of the plane monitoring map, and record one of them as the first tangent line and the other as the second tangent line; Obtain the intersection points of the first tangent line and the second tangent line with the reference horizontal line respectively, and record them as the first intersection point and the second intersection point respectively; The direction from the first intersection point to the second intersection point is recorded as the numbering direction; After completing the numbering of the acquisition points, the displacement measurement points corresponding to each acquisition point are obtained respectively, and the number of each acquisition point is used as the number of its corresponding displacement measurement point.

6. A method for improving the accuracy of geological disaster monitoring according to claim 5, characterized in that: The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area includes: A spatial rectangular coordinate system is established with the displacement reference point as the origin, and the X-axis and Y-axis of the spatial rectangular coordinate system are located on the same horizontal plane; After completing the setting of the displacement measurement points in the monitoring area, the coordinates of each displacement measurement point in the spatial rectangular coordinate system are recorded respectively, and recorded as the initial coordinates of each displacement measurement point; When it is necessary to collect monitoring data of geological disasters in the monitoring area: According to the numbering sequence of the displacement measurement points, the coordinates of each displacement measurement point in the spatial rectangular coordinate system at the current moment are obtained in turn, and recorded as the current coordinates of the displacement measurement point; Each time the current coordinates of a displacement measurement point are obtained, the current coordinates of the displacement measurement point are compared with its initial coordinates; If the current coordinates of the displacement measurement point are the same as the initial coordinates, the current coordinates of the displacement measurement point with the next number are obtained in the order of numbers; If the current coordinates of the displacement measurement point are different from the initial coordinates, the displacement measurement point is marked as an abnormal measurement point; For an abnormal measurement point, the direction from its initial coordinates to the current coordinates is taken as the offset direction of the abnormal measurement point.

7. A method for improving the accuracy of geological disaster monitoring according to claim 6, characterized in that: The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area also includes: Obtain the collection point corresponding to the abnormal measurement point in the plane detection map, and record it as the abnormal collection point; The offset direction of the abnormal measurement point is used as the offset direction of the abnormal acquisition point; Through the abnormal acquisition point, draw a straight line perpendicular to the offset direction of the abnormal acquisition point, and record it as the abnormal reference straight line; Set the distance interval used to demarcate the anomaly detection area, denoted as Z; In the plane monitoring diagram, draw a straight line parallel to the abnormal reference line on both sides of the abnormal reference line, and make the distance between the straight line and the abnormal reference line equal to Z. The two straight lines are recorded as abnormal dividing lines. Obtaining an area enclosed by two abnormality dividing lines and an edge line of the plane monitoring map on the plane monitoring map, and recording the area as an abnormality detection area; Obtain all the acquisition points within the anomaly detection area, and obtain the displacement measurement point corresponding to each acquisition point, which is recorded as a marked measurement point; Determine whether the marked measurement points have acquired their current coordinates; If the marked measurement point has its current coordinates acquired, the marked measurement point will be deleted; Otherwise, keep the marked measurement point.

8. A method for improving the accuracy of geological disaster monitoring according to claim 7, characterized in that: The monitoring of the displacement measurement points and determining whether displacement occurs in the monitoring area also includes: Set a value for the number of divisions used to specify the number of sub-anomaly regions, denoted as D; Intercept the part of the abnormal reference straight line that is located in the abnormal detection area, and record the line segment as a dividing line segment; On the dividing line segment, set a dividing point at a certain distance, so that all the existing dividing points divide the dividing line segment into D equal parts; Draw a perpendicular line through each dividing point and perpendicular to the abnormal reference line, and record it as the dividing perpendicular line; The anomaly detection area is divided into D regions by vertical lines, and each region is regarded as a sub-anomaly region; Obtain the sub-abnormal area where the abnormal collection point is located, and record it as the initial sub-abnormal area; Obtain the center point of each sub-region respectively and record it as the regional center of the sub-abnormal region; Obtain the distance between the regional center of each sub-anomaly region and the regional center of the initial sub-anomaly region respectively, and record it as the regional distance; One side is selected from both sides of the deviation direction of the abnormal acquisition point as side 1, and the other side is selected as side 2; For the sub-anomaly areas except the initial sub-anomaly area, the sub-anomaly areas are numbered in ascending order according to the area distance of the sub-anomaly areas. For the sub-anomaly areas with equal area distances, the sub-anomaly area located on the number one side is numbered first; Obtain a direction perpendicular to the offset direction, recorded as the marking direction; In each sub-anomaly area, the marked measurement points in the sub-anomaly area are traversed in sequence according to the offset direction and the marking direction, and the marked measurement points in the sub-anomaly area are numbered according to the traversal order, and recorded as the sub-anomaly area measurement number; The displacement measurement points are monitored according to the numbers of the sub-anomaly areas and the sub-anomaly area measurement numbers within each sub-anomaly area.

9. A method for improving the accuracy of geological disaster monitoring according to claim 8, characterized in that: The monitoring of the displacement measurement points according to the numbers of the sub-abnormal regions and the sub-abnormal region measurement numbers in each sub-abnormal region includes: Starting from the initial sub-anomaly region and following the numbering order of the other sub-anomaly regions, select each sub-anomaly region in turn; When a sub-region is selected, each marked measurement point is selected in turn according to the measurement number sequence of the sub-anomaly region where the marked measurement points are located within the sub-region; When a marked measurement point is selected, the displacement measurement point corresponding to the marked measurement point is obtained in the monitoring area, and the coordinates of the displacement measurement point in the spatial rectangular coordinate system are obtained, and compared with the initial coordinates of the displacement measurement point to determine whether the coordinates are the same; If the coordinates are the same, no processing is done; If the coordinates are not the same, the distance between the current coordinates and the initial coordinates is obtained and recorded as the offset distance of the displacement measurement point; Sequentially obtain the offset distance of the displacement measurement point corresponding to each marked measurement point in the abnormal detection area; In each sub-anomaly detection area, the offset distances of the displacement measurement points corresponding to each marked measurement point are compared, and the displacement measurement point with the largest offset distance is selected and recorded as the extreme displacement point; Connect each extreme displacement point in turn, and use the formed connection line as the location of the crack.

10. A system using the method for improving the accuracy of geological disaster monitoring according to claim 1, characterized in that: include: Displacement measurement point module: used to set displacement measurement points in the monitoring area; Surveying and mapping module: used to survey the monitoring area and obtain the plane monitoring map of the detection area; Grid division module: used to divide grids on the plane monitoring map and obtain collection points according to the divided grids; Numbering module: used to number the acquisition points, sub-anomaly areas and marked measurement points; Coordinate acquisition module: used to establish a spatial rectangular coordinate system in the monitoring area and obtain the coordinates of each displacement measurement point; Region division module: used to divide the anomaly detection area into sub-anomaly areas.

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