CN111060177B - Underground water contour line auxiliary generation method and device - Google Patents
Underground water contour line auxiliary generation method and device Download PDFInfo
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- CN111060177B CN111060177B CN201911080101.3A CN201911080101A CN111060177B CN 111060177 B CN111060177 B CN 111060177B CN 201911080101 A CN201911080101 A CN 201911080101A CN 111060177 B CN111060177 B CN 111060177B
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- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
Abstract
The invention relates to the technical field of geographic information maintenance, and provides an underground water isoline auxiliary generation method and device. The method comprises the steps of obtaining water level values of all water level detection points, and projecting the water level values to a basic base map according to position information of all the water level detection points; analyzing the water level value of each water level detection point one by one according to the projection result; and if the water level difference value between the projected water level detection point A and the corresponding water level contour line in the basic base map is smaller than a first preset threshold value, determining that the water level value of the water level detection point is matched with the basic base map. The invention utilizes the position relation between the water level detection points and the water level contour line and the incidence relation between the water level detection points, realizes the technical scheme of updating the water level contour line with high intelligence, has a higher fault-tolerant mechanism, and can complete the updating of the water level contour line on the basic base map under the condition of eliminating the faults of the water level detection points.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of geographic information maintenance, in particular to an underground water isoline auxiliary generation method and device.
[ background of the invention ]
Groundwater is an important component of water resources, and is one of the important water sources for agricultural irrigation, industrial and mining, and cities. However, under certain conditions, changes in groundwater can also cause adverse natural phenomena such as swampiness, salinization, landslide, and ground subsidence.
The drawing of the groundwater level contour line can indicate the movement direction of groundwater, indicate hydraulic connection of different aquifers and complementary relation with surface water, the superposition of the groundwater level contour line map and a terrain contour line map can indicate groundwater burying attempts, and the groundwater burying depth contour line map drawn by elevation difference can be used for guiding groundwater mining, engineering foundation excavation, influence of groundwater on underground engineering and the like.
In the current society with rapid development of computer information technology, the water level contour line generation technology is an important research field in underground water resource evaluation. Under the limited hydrogeological survey workload, the obtained groundwater level data are projected to be just discrete points with unequal intervals, and the computer draws two discrete points with water level elevations/water level burial depths close to each other into one hydrogeological unit through an interpolation algorithm. The existing interpolation methods (such as an inverse distance weighted interpolation method, a kriging interpolation method, a minimum curvature method and the like) are difficult to represent the relations and the influences sufficiently and accurately. Calculating the map requires a large number of professionals familiar with the local geological environment to perform manual retouching for weeks or even months. Such mapping efficiency is often difficult to meet today's high efficiency, high level job requirements, especially in urban underground engineering work.
In view of the above, overcoming the drawbacks of the prior art is an urgent problem in the art.
[ summary of the invention ]
The invention aims to solve the technical problems that the existing computer automatically generates a water level contour line, is difficult to fully and correctly express the influence of different hydrogeological boundaries and other water stop systems on the hydrogeological boundaries, and needs a great amount of manual intervention after a map is drawn.
The invention adopts the following technical scheme:
in a first aspect, the invention provides an underground water contour line auxiliary generation method, which comprises the following steps:
acquiring water level values of all water level detection points, and projecting the water level values to a basic base map according to the position information of all the water level detection points; wherein the basic base map is a historical water level contour map and comprises a plurality of water level contours and position information;
analyzing the water level value of each water level detection point one by one according to the projection result;
if the difference value of the water level of the projected water level detection point A and the corresponding water level contour line in the basic base map is smaller than a first preset threshold value, determining that the water level value of the water level detection point is matched with the basic base map;
if the difference between the projected water level detection points A and the corresponding water level in the basic base map is determined to be larger than a first preset threshold, analyzing one or more water level detection points which establish a correlation with the water level detection points A, and if the difference between the water level detection points in the at least one corresponding correlation is larger than the first preset threshold, updating the water level contour lines corresponding to the water level detection points A on the basic base map.
Preferably, the analyzing one or more water level detection points having a correlation with the water level detection point a, and when the correlation is a transverse correlation, the establishing of the corresponding correlation specifically includes:
analyzing at least two water level detection points B and C adjacent to the water level detection point A; if the water level difference value between the water level detection point B and the water level detection point C and the corresponding position of the basic base map is larger than a first preset threshold value, establishing a potential possible transverse association relation among water level contour lines corresponding to the water level detection point A, the water level detection point B and the water level detection point C on the basic base map;
the water level detection point B, the water level detection point C and the water level detection point A meet the same water level, and the water level detection point B, the water level detection point C and the water level detection point A belong to a geographical position area;
further, counting the detection results of multiple times and across time periods, determining that the consistency of adjustment of the water level contour line in the basic base map is kept between the water level detection point A and the water level detection points B and C, and then establishing the transverse association relationship among the water level detection points A, B and C.
Preferably, the distribution mode of the water level detection points is not strictly consistent with the water level contour line presented in the basic base map; wherein, the water level contour line on the basic base map is drawn according to the height difference of 5cm-10 cm; then, the projecting onto the basic base map according to the position information of each water level detection point specifically includes:
projecting the GPS position information of each water level detection point to a position on the basic base map, which is consistent with the GPS position information; wherein the location comprises: on one water level contour or between two water level contours on the basic base map.
Preferably, the first preset threshold is 3-5cm, the water level value of the water level detection point is an average value of the water level in a statistical preset time period, the water level difference value between the water level detection point a after projection and the corresponding water level contour line in the basic base map is determined to be smaller than the first preset threshold, the water level value of the water level detection point is determined to be matched with the basic base map, and the water level contour line on the water level detection point or adjacent to the water level detection point does not need to be adjusted.
Preferably, the determining that the difference between the water level detection point a after projection and the corresponding water level in the basic base map is greater than a first preset threshold includes:
the water level value of the water level detection point A is greater than or less than the corresponding water level value in the basic base map, and a line crossing condition between the water level detection point A and the water level contour line marked in the basic base map occurs, specifically, the water level value of the water level detection point A is separated from a water level value interval formed by adjacent water level contour lines;
updating the water level contour line corresponding to the water level detection point a on the basic base map specifically includes:
and determining a water level contour line X which is closest to the water level value of the water level detection point A on the water level contour line, and pulling an inflection point which is closest to the water level detection point A in the water level contour line X to enable the water level detection point A and the inflection point to meet the change direction of the water level contour line.
Preferably, if one or more water level contours cross between the determined water level contour line X and the water level detection point, the corresponding curve needs to be adjusted according to the adjustment mode of the water level contour line X, which specifically includes:
and finding out the inflection point corresponding to the adjusted inflection point of the water level contour line X on the one or more water level contour lines, and adjusting the inflection point with the same amplitude as the adjusted inflection point of the water level contour line X.
Preferably, if a line crossing condition occurs between the water level contour line marked in the basic base map and the water level contour line marked in the basic base map, analyzing one or more water level detection points having a longitudinal association relationship with the water level detection point a, and determining whether the line crossing condition also occurs at the corresponding one or more water level detection points having the longitudinal association relationship; and if so, updating the water level contour line corresponding to the water level detection point A on the basic base map, otherwise, performing potential troubleshooting on the water level detection point A.
Preferably, the one or more water level detection points having a longitudinal correlation with the water level detection point a specifically include:
and comparing the water level value obtained by the water level detection point with the water level value obtained by the water level detection point A, wherein the water level value is positioned at the upper stage or the lower stage, and if the historical change trend of the corresponding upper stage or lower stage water level detection point is consistent with the water level detection point A, determining to establish the longitudinal association relationship between the corresponding upper stage or lower stage water level detection point and the water level detection point A.
Preferably, the process of confirming the inflection point nearest to the water level detection point a specifically includes:
taking a water level contour line adjacent to the water level detection point A on the basic base map, and obtaining a gradient straight line of the adjacent water level contour lines according to a straight line passing through the water level detection point A and the minimum angle difference between the straight line and the adjacent water level contour lines; and the intersection point of the gradient straight line and the corresponding water level contour line is the inflection point.
In a second aspect, the present invention further provides an underground water contour auxiliary generation apparatus, for implementing the underground water contour auxiliary generation method in the first aspect, the apparatus includes:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor programmed to perform the groundwater contour assisted generation method of the first aspect.
In a third aspect, the present invention also provides a non-transitory computer storage medium storing computer-executable instructions for execution by one or more processors for performing the groundwater contour auxiliary generation method according to the first aspect.
The invention utilizes the position relation between the water level detection points and the water level contour line and the incidence relation between the water level detection points, realizes the technical scheme of updating the water level contour line with high intelligence, has a higher fault-tolerant mechanism, and can complete the updating of the water level contour line on the basic base map under the condition of eliminating the faults of the water level detection points.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic flow chart of an auxiliary generation method of a groundwater contour line provided by an embodiment of the invention;
FIG. 2 is a schematic diagram showing the relationship between the water level contour line and the water level detection point A in the basic base map according to the embodiment of the present invention;
FIG. 3 is a schematic diagram showing the relationship between the water level contour line and the water level detection point A in another basic base map according to the embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a method for determining the relationship between a water level contour and a water level detection point A in a basic base map according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating another method for determining the relationship between the water level contour line and the water level detection point A in the basic base map according to the embodiment of the present invention;
FIG. 6 is a schematic diagram showing the relationship between the water level contour line and the water level detection point A in another basic base map according to the embodiment of the present invention;
FIG. 7 is a schematic diagram showing the relationship between the water level contour line and the water level detection point A in another basic base map according to the embodiment of the present invention;
FIG. 8 is a schematic diagram showing the relationship between the water level contour line and the water level detection point A in the adjusted basic base map according to the embodiment of the present invention;
FIG. 9 is a schematic flow chart of a method for assisting in generating a groundwater contour according to an embodiment of the present invention;
FIG. 10 is a schematic view of an underground water contour auxiliary adjustment provided by an embodiment of the present invention;
FIG. 11 is a schematic diagram of another groundwater contour assisted adjustment provided by an embodiment of the invention;
FIG. 12 is a schematic view of yet another underground water contour auxiliary adjustment provided by an embodiment of the present invention;
fig. 13 is a schematic structural diagram of an auxiliary generation device for an underground water contour line according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are for convenience only to describe the present invention without requiring the present invention to be necessarily constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The method starts from the fact that the underground water is deeply buried and the quality and quantity change and the migration rule of the underground water under the normal natural environment condition are slow-changing types, can be combined with the existing scheme of automatically assisting the generation of the underground water level contour line by any computer, and has very little increased development cost. Under the same condition of matching with a hydrogeological floor map with a definite boundary, professional correction is carried out on the basis of the groundwater level contour map obtained by the scheme, and the correction quantity of one professional drawing person in one day is equal to or exceeds the correction workload of three to four days of the groundwater level contour map drawn only on the basis of a traditional interpolation algorithm.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1:
embodiment 1 of the present invention provides an underground water contour line auxiliary generation method, as shown in fig. 1, including:
in step 201, acquiring water level values of the water level detection points, and projecting the water level values onto a basic base map according to position information of the water level detection points; wherein the basic base map is a historical water level contour map including a plurality of water level contours and position information. As shown in fig. 2, the location information is not directly identified, but for the host or the server, each pixel point in the whole map can be mapped to a physical entity location coordinate, such as GPS location information or latitude and longitude.
In the concrete implementation operation, it is impossible to set a water level detection point for each water level contour in the basic base map, because the position of each water level contour may change after the basic base map is updated by one round of water level contour, and therefore, the water level detection point on a certain water level contour at the previous moment may deviate from the water level contour by a certain distance at the next moment. As shown in fig. 2, the relationship between the water level detection point a after the corresponding projection operation and the water level contour line on the basic floor map is shown schematically.
The distribution mode of the water level detection points is not strictly consistent with the water level contour line presented in the basic base map; wherein, the water level contour line on the basic base map is drawn according to the height difference of 5cm-10cm (the difference can be larger, and the length is not taken as the characteristic content of the shrinkage range); then, the position information according to each water level detection point is projected onto the basic base map, and the following steps can be implemented: projecting the GPS position information of each water level detection point to a position on the basic base map, which is consistent with the GPS position information; wherein the location comprises: on one water level contour on the base floor map (as shown in fig. 3) or between two water level contours (as shown in fig. 2).
Although the method proposed in the embodiment of the present invention can update the water level contour line in the intelligent basic base map, in a preferred embodiment, it is preferable that the expert can check and confirm the final result.
In step 202, the water level value of each water level detection point is analyzed one by one according to the projection result.
In step 203, if it is determined that the difference between the projected water level detection point a and the water level of the corresponding water level contour line in the basic base map is smaller than the first preset threshold, it is determined that the water level value of the water level detection point is matched with the basic base map. The water level contour line on or adjacent to the water level detection point does not need to be adjusted. As shown in fig. 2 and fig. 3, two matching effects are shown.
As shown in fig. 4, if the water level difference between the projected water level detection point a and the corresponding water level contour in the basic base map in the corresponding step is determined, the water level value obtained from the water level detection point a is directly compared and analyzed when the corresponding water level contour already exists in the basic base map. In practical situations, it may be more likely that the water level value obtained from the water level detection point a does not exist in the water level contour line in the basic base map, and at this time, as shown in fig. 4, a water level contour line consistent with the water level value in the water level detection point a is simulated in the basic base map, and then, the corresponding content is analyzed in step 203.
In addition to the above, there is a way that is slightly less accurate but more efficient in operation, as shown in fig. 5, that is, taking the water level contour line adjacent to the water level detection point a on the basic floor map (the contour line with the water level value of 60 and the contour line with the water level value of 65 shown in fig. 5), the gradient straight line of the adjacent water level contour lines is obtained on the basis of the condition that the straight line passing through the water level detection point a has the smallest deviation from the respective angles of the straight line and the adjacent water level contour lines; the point corresponding to the water level value in the water level detection point A, i.e., the object labeled "point on the contour line of 60 water levels on the base map" in FIG. 5, is taken from the line segment EF formed by the intersection of the gradient straight line and the adjacent water level contour. This approach eliminates the need to fully simulate the 60-level contours on the base floor map as shown in FIG. 3, reducing the amount of computation, but also sacrificing accuracy to some extent.
In step 204, if it is determined that the difference between the projected water level detection points a and the water level corresponding to the water level in the basic base map is greater than the first preset threshold, one or more water level detection points having a relationship with the water level detection points a are analyzed, and if the difference between the water level occurring in at least one water level detection point having the relationship is greater than the first preset threshold, the water level contour corresponding to the water level detection point a on the basic base map is updated. As shown in FIG. 6, it is a more serious diagram showing the effect that the water level value of the water level detection point A crosses the water level contour line in the adjacent basic base map. The embodiment of the invention also focuses on how to complete the operation process of the water level contour line corresponding to the water level detection point A on the updated basic base map.
Wherein the first preset threshold is set according to practical conditions and experience, and is usually suitable for the adjacent water level contour line spacing of 5-10cm, and the first preset threshold is 3-5 cm.
The embodiment of the invention utilizes the position relation between the water level detection points and the water level contour line and the incidence relation between the water level detection points, realizes the technical scheme of updating the water level contour line with high intelligence, has a higher fault-tolerant mechanism, and can finish updating the water level contour line on the basic base map under the condition of eliminating the faults of the water level detection points.
In combination with the embodiment of the present invention, there is also a preferred implementation scheme, where the analyzing one or more water level detection points that establish a relationship with the water level detection point a, and when the relationship is a transverse relationship, the establishing of the corresponding relationship specifically includes:
as shown in fig. 7, analyzing at least two water level detection points B and C adjacent to the water level detection point a; if the water level difference value between the water level detection point B and the water level detection point C and the corresponding position of the basic base map is larger than a first preset threshold value, establishing a potential possible transverse association relation among water level contour lines corresponding to the water level detection point A, the water level detection point B and the water level detection point C on the basic base map;
the water level detection point B, the water level detection point C and the water level detection point A meet the same water level, and the water level detection point B, the water level detection point C and the water level detection point A belong to a geographical position area;
further, counting the detection results of multiple times and across time periods, determining that the consistency of adjustment of the water level contour line in the basic base map is kept between the water level detection point A and the water level detection points B and C, and then establishing the transverse association relationship among the water level detection points A, B and C. The statistics is carried out for multiple times, and the time span is to ensure the stability of the transverse association relationship.
Wherein, the water level detection point B, the water level detection point C and the water level detection point A satisfy the same water level class, and the concept is a relative concept: in the specific implementation, they will be understood to be between the water level contours in a pair of adjacent base images, similar to that shown in FIG. 7; however, if the water level detection points are distributed more dispersedly in actual conditions, the water level detection points belong to a water level, and can be divided into levels according to the height of the water level value, and similarly, the water level detection points are divided into levels according to the height of 1-10cm, 10-20cm, 20cm-30cm, …, 80-90cm and every 10 cm. Besides the regular division mode, other classification modes with irregular lengths can be adopted, and the details are not repeated herein.
In the consistency essence described here, the historical trends of the water level detection points a, B and C are the same, that is, if the water level value of the water level detection point a becomes higher relative to the corresponding water level contour line in the basic bottom map, the water level value of the water level detection point B and the water level value of the water level detection point C become higher relative to the corresponding water level contour line in the basic bottom map.
Next, the embodiment of the present invention will explain how to implement the process of updating the water level contour line corresponding to the water level detection point a on the basic base map by the occurrence of the line crossing condition shown in fig. 6, and specifically includes:
and determining a water level contour line X which is closest to the water level value of the water level detection point A on the water level contour line, and pulling an inflection point which is closest to the water level detection point A in the water level contour line X to enable the water level detection point A and the inflection point to meet the change direction of the water level contour line. As shown in fig. 8, the effect diagram after the above method procedure is performed for the case that the basic base diagram is fig. 6. As can be further summarized from fig. 8, if one or more water level contours cross between the determined water level contour line X and the water level detection point (taking fig. 6 and 8 as an example, a 65cm water level contour line crosses between the water level value obtained from the water level detection point a and the water level contour line X), the corresponding curve needs to be adjusted according to the adjustment manner of the water level contour line X, which specifically includes: and finding out the inflection point corresponding to the adjusted inflection point of the water level contour line X on the one or more water level contour lines, and adjusting the inflection point with the same amplitude as the adjusted inflection point of the water level contour line X.
In the above "pulling" operation corresponding to fig. 8, a key element of the hiding is to find a water level contour that has been confirmed by the water level detection point in the pulled direction, and still taking fig. 8 as an example, the contour with the marked water level value of 60 can be considered as the determined water level contour (i.e. accurate), and then the water level contour with the marked water level value of 65 can be executed, and the adjustment with the same magnitude as the inflection point of the water level contour X is adjusted.
Based on the above proposed line crossing situation, in consideration of whether the water level detection points a may have faults or not, in combination with the embodiment of the present invention, there is a preferable scheme that, before the above-mentioned "pulling a turning point in the water level contour line X that is closest to the water level detection points a so that the water level detection points a and the turning point satisfy the direction of change of the water level contour line" is specifically implemented, one or more water level detection points having a longitudinal association relationship with the water level detection points a need to be analyzed, and it is determined whether the line crossing situation also occurs in the corresponding one or more water level detection points having the longitudinal association relationship; and if so, updating the water level contour line corresponding to the water level detection point A on the basic base map, otherwise, performing potential troubleshooting on the water level detection point A.
Wherein, the one or more water level detection points having a longitudinal association relationship with the water level detection point a specifically include:
and comparing the water level value obtained by the water level detection point with the water level value obtained by the water level detection point A, wherein the water level value is positioned at the upper stage or the lower stage, and if the historical change trend of the corresponding upper stage or lower stage water level detection point is consistent with the water level detection point A, determining to establish the longitudinal association relationship between the corresponding upper stage or lower stage water level detection point and the water level detection point A.
In an embodiment of the present invention, there is further provided a preferable inflection point determining method, where the confirmation process of the inflection point nearest to the water level detection point a specifically includes:
and taking a water level contour line adjacent to the water level detection point A on the basic base map, wherein the intersection point of the water level contour line and the corresponding water level contour line is the inflection point according to a straight line passing through the water level detection point A and the minimum deviation between the angles formed by the straight line and the adjacent water level contour line.
Example 2:
the embodiment of the present invention explains the implementation process of the embodiment of the present invention from a more appropriate example scenario, and it should be noted that the embodiment of the present invention shows the completeness in the process, and for the development of the details and the preferred mode of each implementation step, the description related to embodiment 1 is used for reference, and excessive description is not repeated in the embodiment of the present invention, as shown in fig. 9, the method includes
In step 301, a contour map which is authenticated by a large number of experts and has sufficient knowledge on the water resistance of different boundaries in a region to be researched and the mutual replenishment relation of different water-containing systems is selected, and the contour map which can correctly express the relation between the groundwater level contour line and the groundwater level contour line is electronically stored into a base map.
In step 302, the water level detection point of the area requiring the drawing period is selected again and projected on the basic base map.
In step 303, the user can select whether to perform the water level detection point rarefying operation according to the density and the value of the selected point.
In step 304, the computer task selects a water level detection point to perform traversal calculations of the water level detection points.
In step 305, a contour line with a water level value difference of 0 or less than an equal distance from the water level detection point and a nearest contour line is searched. Find go to subsequent step 306, find no go back to step 304 to continue traversing the next point.
In step 306, it is determined whether there is a line crossing (whether there are additional lines present) between the point and the found contour, as shown in FIG. 2 for non-line crossing and FIG. 6 for line crossing.
In step 307, when a line crossing occurs, the check list of the point-to-water level detection points is recorded (unlike embodiment 1, only the recording process is performed for the line crossing in this embodiment, however, in an alternative, the corresponding adjustment scheme in embodiment 1 may also be introduced into the embodiment of the present invention), and the computer performs step 304 by traversing one water level detection point again. When there is no flying lead:
selecting the A and isoline value marking water level value as the water level value of the water level detection point, namely when the difference value is 0, pulling the nearest inflection point on the isoline to the position of the water level detection point, and coinciding with the water level detection point, disturbing the whole isoline by methods and technologies such as isoline tracking, smoothing and the like, and recording the isoline to an isoline checking list, as shown in FIG. 10.
And B, selecting the water level value of the contour value marked water level value > the water level value of the water level detection point, and pulling the nearest inflection point on the contour to move towards the increasing direction of the contour value when the water level detection point is positioned in the increasing direction of the contour value, so that the water level detection point is positioned in the decreasing direction of the contour value, namely the position of the water level detection point is positioned between the curve of the contour 60 and the curve of the contour 65. And perturbing the whole contour line by methods and techniques such as contour line tracking, smoothing and the like, and recording the contour line to a contour line check list, as shown in fig. 11.
And C, selecting the contour value to mark that the water level value is less than that of the water level detection point, and when the water level detection point is positioned in the direction of reducing the contour value, pulling the nearest inflection point on the contour to move towards the direction of reducing the contour, so that the water level detection point is positioned in the direction of increasing the contour value, namely the position of the water level detection point is positioned between the curve of the contour 60 and the curve of the contour 65. And perturbing the whole contour line by methods and techniques such as contour line tracking, smoothing and the like, and recording the contour line to a contour line check list, as shown in fig. 12.
It should be noted that the smoothing process specified in the embodiments of the present invention is based on the dual consideration of the specific curve aesthetics and the allowable error range.
After completion, step 304 is returned to until all points have been traversed and the next step 308 is performed.
In step 308, the user checks and manually adjusts the regenerated contour according to the water level detection point check list and the contour check list. If the result of the process is not satisfactory, the process can return to the step 304 to re-pump the water level detection point or return to the step 301 to re-select the contour floor map.
Example 3:
fig. 13 is a schematic diagram of an architecture of an auxiliary generation device of a groundwater contour according to an embodiment of the invention. The groundwater contour auxiliary generation device of the present embodiment includes one or more processors 21 and a memory 22. In fig. 13, one processor 21 is taken as an example.
The processor 21 and the memory 22 may be connected by a bus or other means, and the bus connection is exemplified in fig. 13.
The memory 22, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs and non-volatile computer-executable programs, such as the groundwater contours assisted generation method in embodiment 1. The processor 21 executes the groundwater contour auxiliary generation method by running a non-volatile software program and instructions stored in the memory 22.
The memory 22 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 22 may optionally include memory located remotely from the processor 21, and these remote memories may be connected to the processor 21 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The program instructions/modules stored in the memory 22, when executed by the one or more processors 21, perform the groundwater contour auxiliary generation method of embodiment 1 described above, for example, perform the steps shown in fig. 1 and 9 described above.
Those of ordinary skill in the art will appreciate that all or part of the steps of the various methods of the embodiments may be implemented by associated hardware as instructed by a program, which may be stored on a computer-readable storage medium, which may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An underground water contour line auxiliary generation method is characterized by comprising the following steps:
acquiring water level values of all water level detection points, and projecting the water level values to a basic base map according to the position information of all the water level detection points; wherein the basic base map is a historical water level contour map and comprises a plurality of water level contours and position information;
analyzing the water level value of each water level detection point one by one according to the projection result;
if the difference value of the water level of the projected water level detection point A and the corresponding water level contour line in the basic base map is smaller than a first preset threshold value, determining that the water level value of the water level detection point is matched with the basic base map;
if the difference between the projected water level detection points A and the corresponding water level in the basic base map is determined to be larger than a first preset threshold, analyzing a plurality of water level detection points which establish a correlation with the water level detection points A, and if the difference between the water level detection points in at least one corresponding correlation is larger than the first preset threshold, updating the water level contour lines corresponding to the water level detection points A on the basic base map;
the analyzing and establishing a plurality of water level detection points with a correlation relation with the water level detection point A, wherein when the correlation relation is a transverse correlation relation, the establishing of the corresponding correlation relation specifically comprises the following steps:
analyzing at least two water level detection points B and C adjacent to the water level detection point A; if the water level difference value between the water level detection point B and the water level detection point C and the corresponding position of the basic base map is larger than a first preset threshold value, establishing a potential possible transverse association relation among water level contour lines corresponding to the water level detection point A, the water level detection point B and the water level detection point C on the basic base map;
the water level detection point B, the water level detection point C and the water level detection point A meet the same water level, and the water level detection point B, the water level detection point C and the water level detection point A belong to a geographical position area;
further, counting the detection results of multiple times and across time periods, determining that the consistency of adjustment of the water level contour line in the basic base map is kept between the water level detection point A and the water level detection points B and C, and then establishing the transverse association relationship among the water level detection points A, B and C.
2. A groundwater contour auxiliary generation method according to claim 1, wherein the water level detection points are distributed in a manner that is not strictly consistent with the water level contour presented in the base map; wherein, the water level contour line on the basic base map is drawn according to the height difference of 5cm-10 cm; then, the projecting onto the basic base map according to the position information of each water level detection point specifically includes:
projecting the GPS position information of each water level detection point to a position on the basic base map, which is consistent with the GPS position information; wherein the location comprises: on one water level contour or between two water level contours on the basic base map.
3. A groundwater contour auxiliary generation method according to claim 1, wherein the first preset threshold is 3-5cm, the water level value of the water level detection point is an average value of water levels in a statistical preset time period, the difference between the water level value of the water level detection point a after the projection and the corresponding water level contour in the basic base map is determined to be smaller than the first preset threshold, and the water level value of the water level detection point is determined to be matched with the basic base map without adjusting the water level contour on the water level detection point or adjacent to the water level detection point.
4. A groundwater contour auxiliary generation method according to claim 1, wherein the determining that the difference between the projected water level detection point a and the corresponding water level in the basic floor map is greater than a first preset threshold value comprises:
the water level value of the water level detection point A is greater than or less than the corresponding water level value in the basic base map, and a line crossing condition between the water level detection point A and the water level contour line marked in the basic base map occurs, specifically, the water level value of the water level detection point A is separated from a water level value interval formed by adjacent water level contour lines;
updating the water level contour line corresponding to the water level detection point a on the basic base map specifically includes:
and determining a water level contour line X which is closest to the water level value of the water level detection point A on the water level contour line, and pulling an inflection point which is closest to the water level detection point A in the water level contour line X to enable the water level detection point A and the inflection point to meet the change direction of the water level contour line.
5. An auxiliary generation method of an underground water contour according to claim 4, wherein if one or more water level contours cross between the determined water level contour X and the water level detection point, the corresponding curve needs to be adjusted according to the adjustment mode of the water level contour X, and specifically comprises:
and finding out the inflection point corresponding to the adjusted inflection point of the water level contour line X on the one or more water level contour lines, and adjusting the inflection point with the same amplitude as the adjusted inflection point of the water level contour line X.
6. A groundwater isoline auxiliary generation method according to claim 4, wherein if a line crossing condition occurs with a water level isoline already marked in a basic base map, one or more water level detection points having a longitudinal association relationship with the water level detection point A need to be analyzed to determine whether the line crossing condition also occurs with the one or more water level detection points having the longitudinal association relationship; and if so, updating the water level contour line corresponding to the water level detection point A on the basic base map, otherwise, performing potential troubleshooting on the water level detection point A.
7. A groundwater contour auxiliary generation method according to claim 6, wherein the one or more water level detection points having a longitudinal association relationship with the water level detection point A specifically include:
and comparing the water level value obtained by the water level detection point with the water level value obtained by the water level detection point A, wherein the water level value is positioned at the upper stage or the lower stage, and if the historical change trend of the corresponding upper stage or lower stage water level detection point is consistent with the water level detection point A, determining to establish the longitudinal association relationship between the corresponding upper stage or lower stage water level detection point and the water level detection point A.
8. A groundwater contour auxiliary generation method according to claim 4, wherein the confirmation process of an inflection point nearest to the water level detection point A specifically comprises:
taking a water level contour line adjacent to the water level detection point A on the basic base map, and obtaining a gradient straight line of the adjacent water level contour lines according to the condition that the straight line passes through the water level detection point A and the difference between the angles of the straight line and the adjacent water level contour lines is minimum; and the intersection point of the gradient straight line and the corresponding water level contour line is the inflection point.
9. An auxiliary generation device for an underground water contour line, the device comprising:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor and programmed to perform a groundwater contour auxiliary generation method according to any of claims 1-8.
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