CN114812497A - Measuring method, device, equipment and storage medium of elevation control network - Google Patents
Measuring method, device, equipment and storage medium of elevation control network Download PDFInfo
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- CN114812497A CN114812497A CN202210208398.2A CN202210208398A CN114812497A CN 114812497 A CN114812497 A CN 114812497A CN 202210208398 A CN202210208398 A CN 202210208398A CN 114812497 A CN114812497 A CN 114812497A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0608—Height gauges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The embodiment of the application discloses a measuring method, a measuring device, measuring equipment and a storage medium of an elevation control network, wherein at least one pair of control points are distributed in the elevation control network; the method comprises the following steps: acquiring a high difference value of the first control point pair; the first control point pair is any one pair of control points in the at least one pair of control points; the height difference value comprises at least a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices; weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value; carrying out adjustment processing on the comprehensive height difference value to obtain an error value; and under the condition that the error value is smaller than a preset threshold value, determining that the first control point pair meets a preset precision requirement.
Description
Technical Field
The present disclosure relates to the field of track control networks, and in particular, to a method, an apparatus, a device, and a storage medium for measuring an elevation control network.
Background
The track control network (CPIII) is a plane and elevation concurrent three-dimensional control network which is arranged along a line, the plane is closed to the base plane control network (CPI) or the line plane control network (CPII), the elevation is closed to a line level base point, and generally, measurement is carried out after off-line engineering construction is finished, and the measurement is a reference for track laying and operation maintenance. The traditional CPIII elevation network is measured by the related technical requirements of second-class leveling measurement or first-class leveling measurement, but the influence of systematic errors such as earth curvature and atmospheric refraction is not considered, so that the accuracy requirement specified by the standard is difficult to achieve, and the requirement of high-speed magnetic levitation track construction is difficult to meet.
Disclosure of Invention
Embodiments of the present application are intended to provide a measurement method, an apparatus, a device, and a storage medium for an elevation control network.
The technical scheme of the application is realized as follows:
a first aspect of an embodiment of the present application provides a method for measuring an elevation control network, where at least one pair of control points is distributed in the elevation control network; the method comprises the following steps:
acquiring a high difference value of the first control point pair; the first control point pair is any one pair of control points in the at least one pair of control points; the height difference value comprises at least a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices;
weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value;
carrying out adjustment processing on the comprehensive height difference value to obtain an error value;
and under the condition that the error value is smaller than a preset threshold value, determining that the first control point pair meets a preset precision requirement.
Optionally, two control points of the first pair of control points are located on different sides of the elevation control network, respectively.
Optionally, the distance between any two adjacent control points of the at least one pair of control points is the same.
Optionally, the obtaining a high difference value of the first control point pair includes:
acquiring the first height difference value of a first control point pair based on first measuring equipment;
and acquiring the second height difference value of the first control point pair based on a second measuring device.
Optionally, the method further comprises:
acquiring a first elevation of the first measuring equipment and a first control point and a second elevation of the first measuring equipment and a second control point respectively; the first control point and the second control point are two control points in the first control point pair;
determining the first height difference value based on the first elevation and the second elevation.
Optionally, the method further comprises:
acquiring a third elevation of the second measuring equipment and the first control point and a fourth elevation of the second control point respectively;
determining the second height difference value based on the third elevation and the fourth elevation.
Optionally, the weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value includes:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment and a second height difference value and a second weight value corresponding to the second measuring equipment.
Optionally, the height difference value further includes a third height difference value measured based on a third measuring device and a fourth height difference value measured based on a fourth measuring device;
the weighting processing is performed on the first height difference value and the second height difference value to obtain a comprehensive height difference value, and the method further includes:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment, a second height difference value and a second weight value corresponding to the second measuring equipment, a third height difference value and a third weight value corresponding to the third measuring equipment, and a fourth height difference value and a fourth weight value corresponding to the fourth measuring equipment.
Optionally, the distance between the first and second measuring devices and the first control point pair is smaller than the distance between the other measuring devices and the first control point pair.
Optionally, the measuring device comprises a laser tracker.
A second aspect of an embodiment of the present application provides a measurement apparatus for an elevation control network, where the apparatus includes:
the acquisition module is used for acquiring a high difference value of the first control point pair; the first control point pair is any one pair of control points in at least one pair of control points; the height difference value comprises at least a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices;
the first processing module is used for weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value;
the second processing module is used for carrying out adjustment processing on the comprehensive height difference value to obtain an error value;
and the determining module is used for determining that the first control point pair meets the preset precision requirement under the condition that the error value is smaller than a preset threshold value.
Optionally, two control points of the first pair of control points are located on different sides of the elevation control network, respectively.
Optionally, the distance between any two adjacent control points in the at least one pair of control points is the same.
Optionally, the obtaining module is specifically configured to:
acquiring the first height difference value of a first control point pair based on first measuring equipment;
and acquiring the second height difference value of the first control point pair based on a second measuring device.
Optionally, the obtaining module is specifically configured to:
acquiring a first elevation of the first measuring equipment and a first control point and a second elevation of the first measuring equipment and a second control point respectively; the first control point and the second control point are two control points in the first control point pair;
determining the first height difference value based on the first elevation and the second elevation.
Optionally, the obtaining module is further configured to:
acquiring a third elevation of the second measuring equipment and the first control point and a fourth elevation of the second control point respectively;
determining the second height difference value based on the third elevation and the fourth elevation.
Optionally, the first processing module is specifically configured to:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment and a second height difference value and a second weight value corresponding to the second measuring equipment.
Optionally, the height difference value further includes a third height difference value measured based on a third measuring device and a fourth height difference value measured based on a fourth measuring device; the first processing module is further configured to:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment, a second height difference value and a second weight value corresponding to the second measuring equipment, a third height difference value and a third weight value corresponding to the third measuring equipment, and a fourth height difference value and a fourth weight value corresponding to the fourth measuring equipment.
Optionally, the distance between the first and second measuring devices and the first control point pair is smaller than the distance between the other measuring devices and the first control point pair.
Optionally, the measuring device comprises a laser tracker.
A third aspect of an embodiment of the present application provides a measurement apparatus for an elevation control network, where the apparatus includes a memory and a processor, where the memory stores instructions;
the processor is configured to execute instructions stored in the memory, and when executed by the processor, the steps of the method of the first aspect are implemented.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method according to the first aspect.
According to the measuring method, the measuring device, the measuring equipment and the storage medium of the elevation control network, a pair of control points in the elevation control network are measured through different measuring equipment respectively, a first height difference value and a second height difference value related to the measured control point pair are obtained, weighting processing is carried out on the first height difference value and the second height difference value, therefore, a comprehensive height difference value of the measured control point pair is obtained, influences of systematic errors such as earth curvature and atmospheric refraction are eliminated, measuring accuracy is improved, and further it is guaranteed that the height difference of the control point pair in the elevation control network can meet requirements of high-speed magnetic levitation track construction.
Drawings
Fig. 1 is a schematic diagram of control point layout in a CFIII elevation control network provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of a measurement method of an elevation control network according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a measurement principle of obtaining a high difference value of a control point pair according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a midpoint elevation control network provided in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of an elevation control network according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of an intersection elevation control network provided in an embodiment of the present application;
FIG. 7 is a schematic structural diagram of yet another elevation control network provided in an embodiment of the present application;
fig. 8 is a schematic flowchart of a specific example of a measurement method provided in an embodiment of the present application;
FIG. 9 is a diagram illustrating a statistical result of partial error values provided in an embodiment of the present application;
FIG. 10 is a schematic structural diagram of an elevation control network surveying apparatus according to an embodiment of the present disclosure;
fig. 11 is a schematic hardware entity structure diagram of an elevation control network measurement apparatus in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Furthermore, the drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the steps. For example, some steps may be decomposed, and some steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a layout of control points in a CFIII elevation control network according to an embodiment of the present disclosure, where an interval between any two adjacent control points on the same side is X, usually, X is 50 meters, two control points in the same pair of control points are respectively located on different sides of the elevation control network, and the two control points are each a closest control point in the elevation control network, an interval between the two control points is Y, usually, Y is 11 meters. However, in the actual process of laying the control points, the positional relationship between the control points in the CFIII elevation control network is often caused by the influence of various errors, for example, the height difference between the same pair of control points is difficult to meet the precision requirement specified by the specification, and therefore, after laying, accurate measurement is needed to ensure the laying precision.
Referring to fig. 2, fig. 2 is a schematic flow chart of a measurement method for an elevation control network according to an embodiment of the present disclosure, where the measurement method for an elevation control network according to the embodiment of the present disclosure is applied to an elevation control network, and at least one pair of control points is arranged in the elevation control network; the method comprises the following steps:
s201, acquiring a height difference value of a first control point pair; the first control point pair is any one pair of control points in at least one pair of control points; the height difference value at least comprises a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices.
In this embodiment, two control points in the first pair of control points are located on different sides of the elevation control network, and the distance between any two adjacent control points in at least one pair of control points is the same. The measuring device may comprise a laser tracker, a smart total station or the like, wherein the measuring device is preferably a laser tracker, i.e. a first height difference value and a second height difference value of the first control point are obtained by different laser trackers, respectively.
In some embodiments, obtaining a high difference value for the first control point pair comprises:
acquiring a first elevation of the first measuring equipment and a first control point and a second elevation of the first measuring equipment and a second control point respectively; the first control point and the second control point are two control points in the first control point pair;
a first height difference value is determined based on the first elevation and the second elevation.
In an example, as shown in fig. 3, fig. 3 is a schematic diagram illustrating a principle of measuring a height difference value of a control point pair according to an embodiment of the present application, where a laser tracker located at a point O measures positions of target balls located at a point a and a point B, respectively, where the target balls are positions of control point pairs. The laser tracker can respectively measure the corresponding slope distances S of the point A and the point B A And S B And the zenith distance alpha A And alpha B Accordingly, the height difference between points a and B can be calculated by:
in the formula (1), h AB High difference, h, between points A and B OB Characterizing the elevation from point O to point B, h oA Characterizing the elevation from point O to point A, K A And K B A, B, and R is the earth's mean radius of curvature of the test area.
Here, the first elevation may be h oA The second elevation may be h OB And respectively measuring a first elevation and a second elevation through data measured by the laser tracker, and further determining a first height difference value of the first control point pair.
In another example, obtaining the high difference value for the first control point pair further comprises:
acquiring a third elevation of the second measuring equipment and the first control point and a fourth elevation of the second control point respectively;
a second height difference value is determined based on a third elevation and the fourth elevation.
Here, the measurement principle is the same as the above example, wherein the second height difference value may or may not be equal to the first height difference value.
In the embodiment, the first elevation of the first control point in the first control point pair and the second elevation of the second control point are respectively measured through the measuring equipment, and then the first height difference value of the first control point pair is determined based on the first elevation and the second elevation, so that the influence of system errors such as earth curvature and atmospheric refraction is eliminated, and the measuring precision is improved.
In some embodiments, as shown in fig. 4, fig. 4 is a schematic diagram of a midpoint elevation control network provided in an embodiment of the present application. Obtaining a high difference value of the first control point pair, comprising: acquiring a first height difference value of a first control point pair based on first measuring equipment; and acquiring a second height difference value of the first control point pair based on the second measuring equipment.
In this embodiment, CFIII-01 and CFIII-02 are one pair of control points, CFIII-03 and CFIII-04 are another pair of control points, CFIII-15 and CFIII-16 are another pair of control points, and the other control points are similar. The first pair of control points may be any of these pairs of control points. cz01, cz02 … … cz09 are different laser trackers, for example, when the first control point pair is CFIII-03 and CFIII-04, a first height difference value of CFIII-03 and CFIII-04 can be obtained based on the measuring device cz02, and a second height difference value of CFIII-03 and CFIII-04 can be obtained based on the measuring device cz 03. Here, it is preferable that the high difference value of the first control point pair is acquired by a measuring device closest to the control point pair to be measured.
In one example, referring to fig. 5, fig. 5 is a schematic structural diagram of an elevation control network according to an embodiment of the present application. The control points on each side are interconnected, such as the control points numbered odd in the figure, or the control points numbered even. Each pair of control points corresponds to two different measuring devices, namely a first measuring device and a second measuring device, so that the first height difference value and the second height difference value are obtained by measuring the same pair of control points through the first measuring device and the second measuring device. It should be noted that, the distances between the first measuring device and the first control point pair and the second measuring device are smaller than the distances between the other measuring devices and the first control point pair, and the first measuring device and the second measuring device are respectively located on two sides of a connecting line of the two control points in the first control point pair, so as to reduce the measurement error and improve the measurement accuracy.
In some embodiments, as shown in fig. 6, fig. 6 is a schematic diagram of an intersection elevation control network provided in an embodiment of the present application. Obtaining a high difference value of the first control point pair, comprising: the method comprises the steps of obtaining a first height difference value of a first control point pair based on a first measuring device, obtaining a second height difference value of the first control point pair based on a second measuring device, and obtaining a third height difference value based on a third measuring device and a fourth height difference value based on a fourth measuring device.
In this embodiment, the control point pairs CFIII-01 and CFIII-02, CFIII-15 and CFIII-16 located at two ends of the elevation control network correspond to three different measuring devices, such as, for example, a first measuring device, a second measuring device and a second measuring device, respectively, and the two control point pairs are measured by the three different measuring devices to obtain a first height difference value, a second height difference value and a third height difference value. The other control point pairs except the two control point pairs correspond to four different measuring devices, for example, a first measuring device, a second measuring device and a fourth measuring device, and the two control point pairs are measured by the four different measuring devices, so that a first height difference value, a second height difference value, a third height difference value and a fourth height difference value can be obtained.
In an example, please refer to fig. 7, where fig. 7 is a schematic structural diagram of another elevation control network according to an embodiment of the present application. The control points on each side are interconnected, such as the control points numbered odd in the figure, or the control points numbered even. Each pair of control points corresponds to three different measuring devices, or four different measuring devices, whereby a plurality of different height difference values can be measured with respect to the same pair of control points by means of a plurality of different measuring devices.
S202, weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value.
In one example, based on a first height difference value and a first weight corresponding to a first measurement device, and a second height difference value and a second weight corresponding to a second measurement device, a composite height difference value is obtained.
Specifically, let h 1 、h 2 Respectively a first height difference value obtained based on the first measuring equipment and a second height difference value obtained based on the second measuring equipment, P 1 、P 2 The weights corresponding to the first height difference value and the second height difference value respectively can obtain a comprehensive height difference:
because the first measuring device and the second measuring device are independent of each other, according to the law of error propagation, a measurement error is obtained:
in the formula (3), the reaction mixture is,
the covariances corresponding to the variance of the first high difference value and the variance of the second high difference value respectively are considered
Thus, the above equation can be simplified to:
while taking into account Q hh ＝P -1 Thus, there are:
P＝P 1 +P 2 (5)
in another example, the high difference value further includes a third high difference value measured based on a third measuring device and a fourth high difference value measured based on a fourth measuring device.
The first height difference value and the second height difference value are weighted to obtain a comprehensive height difference value, and the method further comprises the following steps:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment, a second height difference value and a second weight value corresponding to the second measuring equipment, a third height difference value and a third weight value corresponding to the third measuring equipment, and a fourth height difference value and a fourth weight value corresponding to the fourth measuring equipment.
Specifically, the same group of control point pairs are measured through a first measuring device, a second measuring device and a fourth measuring device respectively to obtain a first height difference value h 1 The second height difference value h 2 The third height difference value h 3 And a fourth height difference value h 4 Thus, a comprehensive height difference is obtained:
because the first measuring device, the second measuring device, the third measuring device and the fourth measuring device are independent of each other, according to the law of error propagation, a measurement error is obtained:
in the case of the formula (7),
the covariances corresponding to the variance of the first height difference value, the variance of the second height difference value, the variance of the third height difference value and the variance of the fourth height difference value respectively are considered
Therefore, the above formula can be simplified to：
While taking into account Q hh ＝P -1 Thus, there are:
P＝P 1 +P 2 +P 3 +P 4 (9)
it should be noted that, in this embodiment, the weight of the high difference value corresponding to each measurement device is determined by using an authenticated weight method.
S203, carrying out adjustment processing on the comprehensive height difference value to obtain an error value.
Here, after the adjustment processing is performed on the integrated altitude difference value, and calculation and statistics are performed, multiple types of error values can be obtained, such as an accidental average error per kilometer altitude difference, an overall average error per kilometer altitude difference, an altitude difference correction number, and an average error between adjacent altitude differences.
S204, under the condition that the error value is smaller than the preset threshold value, the first control point pair is determined to meet the preset precision requirement.
Illustratively, when the precision requirement of the height difference per kilometer total error is 0.30mm (millimeter), and when the obtained corresponding error value is 0.20mm, it may be determined that the first control point pair meets the preset precision requirement; when the accuracy requirement of the altitude difference correction number is that the altitude difference correction number is less than 0.05mm, if the obtained corresponding error value is that the altitude difference correction number is less than 0.05mm and is only 60%, it can be determined that the first control point pair does not meet the preset accuracy requirement and needs to be retested.
In a specific embodiment, as shown in fig. 8, fig. 8 is a schematic flowchart of a specific example of a measurement method provided in an embodiment of the present application, and specifically includes the following steps:
s810: a free measuring station of a laser tracker; and measuring the elevations of the same pair of control points by different laser trackers.
S820: acquiring a direct height difference; the height difference between the laser tracker and two control points in the control point pair can be obtained by observing the quantity through the laser tracker.
S830: calculating indirect height difference; and calculating the height difference between the two control points, namely the indirect height difference, based on the measured height difference between the laser tracker and the two control points in the control point pair.
S840: judging whether the indirect height difference is qualified or not; the indirect elevations measured by different laser trackers are compared, and if an indirect elevation with a large numerical difference occurs, step S841 is executed. If the measured indirect height difference value is normal, step S850 is executed.
S841: processing the problem value; and removing abnormal indirect height differences from the measured indirect height differences, and re-measuring the control points corresponding to the abnormal indirect height difference values.
S850: combining the indirect height differences to obtain a comprehensive height difference; and weighting a plurality of indirect height differences obtained based on different laser tracker measurements to obtain a comprehensive height difference value.
S860: carrying out adjustment processing on the comprehensive height difference to determine an error value;
s870: verifying an error value; if the error value is smaller than the preset threshold, executing step S880; if the error value is not less than the preset threshold, step S871 is executed: processing problem value, and removing data corresponding to individual control point with excessive error value
S880: and (6) ending.
In one example, as shown in fig. 9, fig. 9 is a schematic diagram of a statistical result of partial error values provided in the embodiment of the present application; after the pre-test precision of the CFIII elevation net (namely, the step S840) meets the requirement, adjustment calculation is respectively carried out on the CFIII equal-grade elevation net, the intersection method and the CFIII triangular elevation net adopting the midpoint method, and then the height difference correction numbers and the errors in the adjacent height differences after the adjustment of the three CFIII elevation nets are counted. Wherein the total difference in height corrections of the CFIII elevation net is less than 0.1mm and the error in difference in adjacent points is less than 0.25mm, whereas the difference in height corrections of the conventional CFIII first-class net is only 37.5% in the range of [0,0.05), respectively 87.5% and 100% in the range of [0,0.05), respectively, as measured by the intersection method and the midpoint method in the present application. For the error in the difference between adjacent points, the conventional CFIII equal level net can only reach the precision range of [0.05,0.25), while the intersection method measurement and the midpoint method measurement in the application can reach the precision range of [0, 0.05).
Compared with a conventional CFIII equal-grade level network, the measuring method of the elevation control network provided by the embodiment of the application has higher precision, and can ensure that the height difference of the control point pairs in the elevation control network can meet the requirement of high-speed magnetic levitation track construction.
According to the measuring method of the elevation control network, a pair of control points in the elevation control network are measured through different measuring devices respectively, multiple groups of height difference values related to the measured control point pairs are obtained, the measured multiple groups of height difference values are weighted respectively, so that the comprehensive height difference value of the measured control point pairs is obtained, the influence of system errors such as earth curvature and atmospheric refraction is eliminated, the measuring precision is improved, the height difference of the control point pairs in the elevation control network is guaranteed to meet the requirement of high-speed magnetic levitation track construction, the plane network and the elevation network can be measured simultaneously, the measuring efficiency is improved, and the measuring cost is reduced.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a height control network measuring device 1000 according to an embodiment of the present application, where the device includes:
an obtaining module 1001, configured to obtain a height difference value of the first control point pair; the first control point pair is any one pair of control points in at least one pair of control points; the height difference value at least comprises a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices;
a first processing module 1002, configured to perform weighting processing on the first height difference value and the second height difference value to obtain a comprehensive height difference value;
a second processing module 1003, configured to perform adjustment processing on the comprehensive height difference value to obtain an error value;
the determining module 1004 is configured to determine that the first control point pair meets the preset accuracy requirement when the error value is smaller than the preset threshold.
In some embodiments, the two control points of the first pair of control points are each located on a different side of the elevation control network.
In some embodiments, the spacing between any adjacent two of the at least one pair of control points is the same.
In some embodiments, the obtaining module 1001 is specifically configured to:
acquiring a first height difference value of a first control point pair based on first measuring equipment;
and acquiring a second height difference value of the first control point pair based on the second measuring equipment.
In some embodiments, the obtaining module 1001 is specifically configured to:
acquiring a first elevation of the first measuring equipment and a first control point and a second elevation of the first measuring equipment and a second control point respectively; the first control point and the second control point are two control points in the first control point pair;
a first height difference value is determined based on the first elevation and the second elevation.
In some embodiments, the obtaining module 1001 is further configured to:
acquiring a third elevation of the second measuring equipment and the first control point and a fourth elevation of the second control point respectively;
a second height difference value is determined based on the third elevation and the fourth elevation.
In some embodiments, the first processing module 1002 is specifically configured to:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment and a second height difference value and a second weight value corresponding to the second measuring equipment.
In some embodiments, the height difference value further comprises a third height difference value measured based on a third measuring device and a fourth height difference value measured based on a fourth measuring device; the first processing module 1002 is further configured to:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment, a second height difference value and a second weight value corresponding to the second measuring equipment, a third height difference value and a third weight value corresponding to the third measuring equipment, and a fourth height difference value and a fourth weight value corresponding to the fourth measuring equipment.
In some embodiments, the distance between the first and second measurement devices and the first control point pair is less than the distance between the other measurement devices and the first control point pair.
In some embodiments, the measurement device comprises a laser tracker.
The above description of the apparatus embodiments, similar to the above description of the method embodiments, has similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
The embodiment of the application also provides measuring equipment of the elevation control network, which comprises a memory and a processor, wherein instructions are stored in the memory; the processor is configured to execute the instructions stored in the memory, and when the instructions are executed by the processor, the steps described in the above method embodiments are implemented. Specific examples are described in the above method examples, and are not described in detail herein.
Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the measurement method for an elevation control network provided in the foregoing embodiments.
Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
It should be noted that fig. 11 is a schematic structural diagram of a hardware entity of a measurement device of an elevation control network in an embodiment of the present application, and as shown in fig. 11, the hardware entity of the measurement device 1100 of the elevation control network includes: a processor 1101 and a memory 1103, optionally the measuring device 1100 of the elevation control network may further comprise a communication interface 1102.
It will be appreciated that the memory 1103 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 1103 described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The methods disclosed in the above embodiments may be implemented in the processor 1101 or by the processor 1101. The processor 1101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1101. The Processor 1101 described above may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 1101 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 1103 and the processor 1101 reads the information in the memory 1103 and performs the steps of the aforementioned method in connection with its hardware.
In an exemplary embodiment, the measuring Device 1100 of the elevation control network may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another observation, or some features may be omitted, or not performed. In addition, the communication connections between the components shown or discussed may be through interfaces, indirect couplings or communication connections of devices or units, and may be electrical, mechanical or other.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read-Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit in the embodiment of the present application may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical embodiments of the present application may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including instructions for enabling a classification device (which may be a personal computer, a server, or a network device) of the multi-view remote sensing image to perform all or part of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The measurement method, the measurement apparatus, and the computer storage medium for the elevation control network described in the embodiments of the present application are only examples of the embodiments described herein, but are not limited thereto, and the measurement method, the measurement apparatus, the measurement device, and the computer storage medium for the elevation control network are all within the scope of the present application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (13)
1. The measuring method of the elevation control network is characterized in that at least one pair of control points is distributed in the elevation control network; the method comprises the following steps:
acquiring a high difference value of the first control point pair; the first control point pair is any one pair of control points in the at least one pair of control points; the height difference value comprises at least a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices;
weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value;
carrying out adjustment processing on the comprehensive height difference value to obtain an error value;
and under the condition that the error value is smaller than a preset threshold value, determining that the first control point pair meets a preset precision requirement.
2. The surveying method according to claim 1, wherein two control points of the first pair of control points are located on different sides of the elevation control net, respectively.
3. The measurement method according to claim 1, wherein a distance between any adjacent two of the at least one pair of control points is the same.
4. The method of claim 1, wherein obtaining the high difference value for the first control point pair comprises:
acquiring the first height difference value of a first control point pair based on first measuring equipment;
and acquiring the second height difference value of the first control point pair based on a second measuring device.
5. The measurement method according to claim 1, characterized in that the method further comprises:
acquiring a first elevation of the first measuring equipment and a first control point and a second elevation of the first measuring equipment and a second control point respectively; the first control point and the second control point are two control points in the first control point pair;
determining the first height difference value based on the first elevation and the second elevation.
6. The measurement method according to claim 5, characterized in that the method further comprises:
acquiring a third elevation of the second measuring equipment and the first control point and a fourth elevation of the second control point respectively;
determining the second height difference value based on the third elevation and the fourth elevation.
7. The measurement method according to claim 4, wherein the weighting the first height difference value and the second height difference value to obtain a combined height difference value comprises:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment and a second height difference value and a second weight value corresponding to the second measuring equipment.
8. The method of measurement according to claim 1, wherein the height difference value further comprises a third height difference value measured based on a third measuring device and a fourth height difference value measured based on a fourth measuring device;
the weighting processing is performed on the first height difference value and the second height difference value to obtain a comprehensive height difference value, and the method further includes:
and obtaining a comprehensive height difference value based on a first height difference value and a first weight value corresponding to the first measuring equipment, a second height difference value and a second weight value corresponding to the second measuring equipment, a third height difference value and a third weight value corresponding to the third measuring equipment, and a fourth height difference value and a fourth weight value corresponding to the fourth measuring equipment.
9. The measurement method according to claim 4, wherein the distance between the first measurement device and the second measurement device and the first control point pair is smaller than the distance between the other measurement devices and the first control point pair.
10. The measurement method of claim 1, wherein the measurement device comprises a laser tracker.
11. A surveying apparatus for an elevation control net, the apparatus comprising:
the acquisition module is used for acquiring a height difference value of the first control point pair; the first control point pair is any one pair of control points in at least one pair of control points; the height difference value comprises at least a first height difference value and a second height difference value; the first height difference value and the second height difference value are height difference values measured based on different measuring devices;
the first processing module is used for weighting the first height difference value and the second height difference value to obtain a comprehensive height difference value;
the second processing module is used for carrying out adjustment processing on the comprehensive height difference value to obtain an error value;
and the determining module is used for determining that the first control point pair meets the preset precision requirement under the condition that the error value is smaller than a preset threshold value.
12. A surveying apparatus of an elevation control network comprising a memory and a processor, wherein the memory has instructions stored therein;
the processor is configured to execute instructions stored in the memory, which when executed by the processor implement the steps of the method of any one of claims 1 to 10.
13. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 10.
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