CN116858181A - CPIII measurement scheme and measurement method - Google Patents
CPIII measurement scheme and measurement method Download PDFInfo
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- CN116858181A CN116858181A CN202210303710.6A CN202210303710A CN116858181A CN 116858181 A CN116858181 A CN 116858181A CN 202210303710 A CN202210303710 A CN 202210303710A CN 116858181 A CN116858181 A CN 116858181A
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- 238000005259 measurement Methods 0.000 title claims abstract description 32
- 238000000691 measurement method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000012937 correction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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Abstract
The invention relates to the technical field of CPIII measurement, in particular to a CPIII measurement scheme and a measurement method, which solve the problem that the accuracy of CPIII measurement in railway track operation in the prior art is to be improved. The CPIII measuring scheme and the measuring method use a measuring system consisting of a total station, an industrial computer, a GPS positioning device and a power supply device, and the intersection point of the longitudinal central lines of two control points on two sides and the transverse central line of two adjacent control points on the same side is an observation point, and the height of the total station is adjusted up and down. According to the invention, through setting the operation of acquiring the angle data on each observation point, the position of the observation point can be calibrated in advance by utilizing the angle operation, so that the observed data is more accurate, and the CPIII measurement method with a self-detection function and more accurate data is realized.
Description
Technical Field
The invention relates to the technical field of CPIII measurement, in particular to a CPIII measurement scheme and a measurement method.
Background
The high-speed railway track control network (CPIII) mainly provides a control reference for track laying and operation maintenance. The control points are arranged in pairs at intervals of 40-60 m along the line direction, and the distance between each pair of control points is about 15 m.
CPIII control measurement is implemented on the basis of the CPIII coordinate result of a line control network, and plane and elevation coordinates of each control point of CPIII are obtained through measurement, so that the track is monitored for track operation and maintenance; among them, the most common working methods are as follows: (1) polar coordinates; each CPIII point is independently solved, so that the correlation of the CPIII is not strong; (2) angle measurement intersection method; the measurement accuracy is not high; (3) edge measurement intersection method; correction such as atmospheric refraction, instrument multiplication constant and the like is needed, and the correction is complicated; (4) branch pitch intersection method; the method is simple in operation and high in precision, but because the support distance is not completely perpendicular to the directional sight, the correlation of each CPIII is not strong.
The method is a station-by-station intermittent measurement method based on static measurement instruments such as a total station, a theodolite, a level gauge and the like, has long time consumption and extremely low efficiency, has high requirements on observation conditions (such as atmosphere, light and the like) during measurement, has weak correlation among CPIII control points, and cannot ensure the precision of a CPIII foundation pile control network;
therefore, a CPIII measuring scheme and a measuring method are provided, and the CPIII control point measurement and retesting can be completed simultaneously by setting a scheme, so that the precision of a CPIII foundation pile control network is improved, and the stable operation of a railway track is ensured.
Disclosure of Invention
The invention aims to provide a CPIII measurement scheme and a measurement method, which solve the problem that the accuracy of CPIII measurement in railway track operation in the prior art needs to be improved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the CPIII measuring scheme and the measuring method are characterized in that a measuring system consisting of a total station, an industrial computer, a GPS positioning device and a power supply device is used, the intersection point of the longitudinal central lines of control points at two sides and the transverse central line of two adjacent control points at the same side is an observation point, distance data and angle data are obtained on the basis of adjusting the height of the total station up and down, the distance data of at least three control points are obtained on the basis of adjusting the total station horizontally, and the industrial computer calculates and proofreads a plurality of groups of data in a classified mode to obtain the difference between ideal data and actual data so as to control CPIII network parameters.
Preferably, the steps are as follows:
step S1: selecting at least three pairs of non-adjacent control points, transversely connecting each pair of control points, finding out the midpoints of the three transverse connecting lines, acquiring a longitudinal midline, selecting the transverse connecting lines of at least two pairs of control points, and correcting the longitudinal bus position;
step S2: connecting two control points adjacent to the same side, taking a midpoint vertical line, wherein the midpoint vertical line extends and is vertical to the longitudinal midline to form a transverse midline, and acquiring an intersection point of the longitudinal midline and a plurality of transverse midlines as an observation point;
step S3: erecting a total station linear moving track along a longitudinal center line, calibrating the moving track through rays, erecting the total station on the moving track, and positioning and observing at each observation point;
step S4: setting two observation points in the vertical direction on each observation point, wherein the two observation points are positioned on a plane far away from the control point, and the two observation points respectively acquire the distance data of four symmetrical control points;
step S5: acquiring height data of the total station after each vertical elevation adjustment;
step S6: additionally selecting two symmetrical control points which are farthest from the observation points, and respectively acquiring distance data on the two vertical observation points;
step S7: acquiring angle data in the steps S4, S5 and S6 at the same observation point;
step S8: and (3) moving the total station to finish all observation points, forming a table by an industrial computer, and checking and calibrating the table data with ideal data.
Preferably, in the step S8, the difference between the height difference of the total station adjusted up and down at each observation point and the calculated vertical distance from the control point to the total station is calibrated to be accurate to the millimeter.
Preferably, in the step S8, the height differences of the three pairs of control points of each observation point are calibrated, and the height differences of the multiple groups of control points of the plurality of observation points are calibrated to be accurate to the millimeter.
Preferably, before the distance measurement is performed on each observation point, angle values from the observation point to three pairs of control points are measured first, and the positioning of the observation point at the intersection point is calibrated by an industrial computer, so that the accuracy is millimeter.
Preferably, after the distance data of each observation point is acquired, the actual vertical distance from the control point to the total station can be acquired on the basis of accurate calibration of the angle data.
The invention has the following beneficial effects:
1. through setting up the operation that angle data obtained on every observation point, utilize the angle operation can calibrate the position of observation point in advance, and then make the data of observing more accurate, realized a CPIII measuring method that has the self-checking function, data are more accurate.
2. And by analogy, a plurality of control points are connected, the known intersection point on the central line is used as the observation point, less data can be measured, the comparison between ideal data and actual data can be better realized, the specific condition of each control point can be obtained more intuitively by comparing the data, the CPIII measurement operation is simple, and the implementation and calculation are more convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first observation point in the vertical direction of each observation point;
fig. 2 is a second observation point in the vertical direction of each observation point;
fig. 3 is a schematic view of the angular observation at each observation point.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
1-3, a CPIII measurement scheme and a measurement method are used, a measurement system consisting of a total station, an industrial computer, a GPS positioning device and a power supply device is used, the intersection point of the longitudinal central lines of two control points and the transverse central lines of two adjacent control points on the same side is an observation point, distance data and angle data are obtained on the basis of adjusting the height of the total station up and down, the distance data of at least three control points are obtained on the basis of adjusting the total station horizontally, and the industrial computer calculates and collates multiple groups of data in a classified manner to obtain the difference between ideal data and actual data so as to control CPIII network parameters;
in this embodiment: and by analogy, a plurality of control points are connected, the known intersection point on the central line is used as the observation point, less data can be measured, the comparison between ideal data and actual data can be better realized, the specific condition of each control point can be obtained more intuitively by comparing the data, the CPIII measurement operation is simple, and the implementation and calculation are more convenient.
Example two
Referring to fig. 1-3, the cpiii measurement scheme and measurement method, steps are as follows:
step S1: selecting at least three pairs of non-adjacent control points, transversely connecting each pair of control points, finding out the midpoints of the three transverse connecting lines, acquiring a longitudinal midline, selecting the transverse connecting lines of at least two pairs of control points, and correcting the longitudinal bus position;
step S2: connecting two control points adjacent to the same side, taking a midpoint vertical line, wherein the midpoint vertical line extends and is vertical to the longitudinal midline to form a transverse midline, and acquiring an intersection point of the longitudinal midline and a plurality of transverse midlines as an observation point;
step S3: erecting a total station linear moving track along a longitudinal center line, calibrating the moving track through rays, erecting the total station on the moving track, and positioning and observing at each observation point;
step S4: setting two observation points in the vertical direction on each observation point, wherein the two observation points are positioned on a plane far away from the control point, and the two observation points respectively acquire the distance data of four symmetrical control points;
step S5: acquiring height data of the total station after each vertical elevation adjustment;
step S6: additionally selecting two symmetrical control points which are farthest from the observation points, and respectively acquiring distance data on the two vertical observation points;
step S7: acquiring angle data in the steps S4, S5 and S6 at the same observation point;
step S8: moving the total station to finish all observation points, forming a table by an industrial computer, and checking and calibrating the table data with ideal data; calibrating the difference between the height difference of the total station adjusted up and down at each observation point and the calculated vertical distance from the control point to the total station, and accurately obtaining the millimeter; calibrating the height difference of three pairs of control points of each observation point, and calibrating the height difference of a plurality of groups of control points of a plurality of observation points to be accurate to millimeter;
in this embodiment, by additionally arranging two observation points in the vertical direction of each observation point, and comparing the calculated height difference of the control point with the height differences of a plurality of observation points, the comparison positioning on the horizontal network of the plurality of control points is realized, so that the measurement information of the control point can be obtained more intuitively and accurately.
Example III
Referring to fig. 1-3, the cpiii measurement scheme and measurement method, steps are as follows:
step S1: selecting at least three pairs of non-adjacent control points, transversely connecting each pair of control points, finding out the midpoints of the three transverse connecting lines, acquiring a longitudinal midline, selecting the transverse connecting lines of at least two pairs of control points, and correcting the longitudinal bus position;
step S2: connecting two control points adjacent to the same side, taking a midpoint vertical line, wherein the midpoint vertical line extends and is vertical to the longitudinal midline to form a transverse midline, and acquiring an intersection point of the longitudinal midline and a plurality of transverse midlines as an observation point;
step S3: erecting a total station linear moving track along a longitudinal center line, calibrating the moving track through rays, erecting the total station on the moving track, and positioning and observing at each observation point;
step S4: setting two observation points in the vertical direction on each observation point, wherein the two observation points are positioned on a plane far away from the control point, and the two observation points respectively acquire the distance data of four symmetrical control points;
step S5: acquiring height data of the total station after each vertical elevation adjustment;
step S6: additionally selecting two symmetrical control points which are farthest from the observation points, and respectively acquiring distance data on the two vertical observation points;
step S7: acquiring angle data in the steps S4, S5 and S6 at the same observation point; before each observation point performs distance measurement, firstly measuring angle values from the observation point to three pairs of control points, and calibrating the positioning of the observation point at the intersection point by an industrial computer to be accurate to millimeter; after the distance data of each observation point is acquired, the actual vertical distance from the control point to the total station can be acquired on the basis of accurate correction of the angle data;
step S8: moving the total station to finish all observation points, forming a table by an industrial computer, and checking and calibrating the table data with ideal data; calibrating the difference between the height difference of the total station adjusted up and down at each observation point and the calculated vertical distance from the control point to the total station, and accurately obtaining the millimeter; calibrating the height difference of three pairs of control points of each observation point, and calibrating the height difference of a plurality of groups of control points of a plurality of observation points to be accurate to millimeter;
in this embodiment, by setting an operation of acquiring angle data at each observation point, the position of the observation point can be calibrated in advance by using the angle operation, so that the observed data is more accurate, and a CPIII measurement method with a self-detection function and more accurate data is realized.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
- A measuring scheme and a measuring method of CPIII use a measuring system composed of a total station, an industrial computer, a GPS positioning device and a power supply device, and is characterized in that the intersection point of the longitudinal central lines of two control points and the transverse central lines of two adjacent control points on the same side is an observation point, distance data and angle data are obtained on the basis of adjusting the height of the total station up and down, the distance data of at least three control points are obtained on the basis of adjusting the total station horizontally, and the industrial computer calculates and corrects multiple groups of data in a classified manner to obtain the difference between ideal data and actual data so as to control CPIII network parameters.
- 2. The CPIII measurement scheme and measurement method as claimed in claim 1, wherein the steps are as follows:step S1: selecting at least three pairs of non-adjacent control points, transversely connecting each pair of control points, finding out the midpoints of the three transverse connecting lines, acquiring a longitudinal midline, selecting the transverse connecting lines of at least two pairs of control points, and correcting the longitudinal bus position;step S2: connecting two control points adjacent to the same side, taking a midpoint vertical line, wherein the midpoint vertical line extends and is vertical to the longitudinal midline to form a transverse midline, and acquiring an intersection point of the longitudinal midline and a plurality of transverse midlines as an observation point;step S3: erecting a total station linear moving track along a longitudinal center line, calibrating the moving track through rays, erecting the total station on the moving track, and positioning and observing at each observation point;step S4: setting two observation points in the vertical direction on each observation point, wherein the two observation points are positioned on a plane far away from the control point, and the two observation points respectively acquire the distance data of four symmetrical control points;step S5: acquiring height data of the total station after each vertical elevation adjustment;step S6: additionally selecting two symmetrical control points which are farthest from the observation points, and respectively acquiring distance data on the two vertical observation points;step S7: acquiring angle data in the steps S4, S5 and S6 at the same observation point;step S8: and (3) moving the total station to finish all observation points, forming a table by an industrial computer, and checking and calibrating the table data with ideal data.
- 3. The CPIII measurement scheme and measurement method according to claim 1, wherein in the step S8, the difference between the height difference of the total station adjusted up and down at each observation point and the calculated vertical distance from the control point to the total station is calibrated to be accurate to millimeter.
- 4. The CPIII measurement scheme and measurement method according to claim 1, wherein in step S8, the height differences of the three pairs of control points of each observation point are calibrated, and the height differences of the multiple groups of control points of the plurality of observation points are calibrated to be accurate to millimeter.
- 5. The CPIII measurement scheme and measurement method according to claim 1, wherein before each observation point performs distance measurement, angle values from the observation point to three pairs of control points are measured first, and positioning of the observation point at the intersection point is calibrated by an industrial computer to be accurate to millimeter.
- 6. The CPIII measurement scheme and measurement method according to claim 1, wherein after the distance data of each observation point is acquired, the actual vertical distance from the control point to the total station can be acquired on the basis of the accuracy of the angle data correction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118168512A (en) * | 2024-05-16 | 2024-06-11 | 国网山东省电力公司平度市供电公司 | Power line height measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118168512A (en) * | 2024-05-16 | 2024-06-11 | 国网山东省电力公司平度市供电公司 | Power line height measuring device |
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