CN109883327B - Track frame system monitoring method - Google Patents
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Abstract
The invention provides a method for monitoring a track frame system, which comprises the steps of sequentially analyzing the shape structure of each pipeline support in a three-dimensional model of the pipeline support, selecting a plurality of characteristic points in each pipeline support, respectively establishing a respective right-angle local coordinate system at each pipeline support, and carrying out coordinate conversion according to the relationship between the right-angle local coordinate system and a three-dimensional coordinate system to obtain a right-angle theoretical coordinate value of each characteristic point relative to the right-angle local coordinate system; laying an observation pier, measuring a rectangular observation coordinate value of each characteristic point in a rectangular local coordinate system at the observation pier, and measuring a rectangular observation coordinate value of each characteristic point; and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range, and judging whether the precision of the pipeline support meets the requirement. Because the distance between the right-angle local coordinate system and the characteristic points is short, the relative position of the characteristic points is convenient to observe, and the monitoring is faster and more convenient compared with the coordinate value of the characteristic points in the three-dimensional coordinate system which is directly measured.
Description
Technical Field
The invention relates to the technical field of precision detection, in particular to a track frame system monitoring method.
Background
The snowmobile ski track is a space hyperboloid-shaped moving slideway formed by combining a refrigeration pipeline support, a refrigeration pipe, a concrete surface and the like, one track is composed of a plurality of casing pipeline supports at the interval of 1.5-2.5 m, the pipeline supports are frameworks transversely cut along the central line of the track, the bottoms of the pipeline supports are fixed on the ground, and the pipeline supports are arranged at intervals; each set of pipeline support is distributed at different elevations and different coordinate positions according to the spatial trend of the track, and the track is combined according to different positions of the pipeline support, so that the track presents different bending shapes; the refrigerating pipelines are clamped on the pipeline supports along the trend of the track, and the refrigerating pipelines and the pipeline supports form a frame system.
And after the frame system is erected, concrete is poured, the pipeline support and the refrigeration pipeline are all wrapped in the concrete to form a track with a smooth curved surface, and the flatness requirement is not more than 10 mm.
The pipeline bracket is the basis of positioning and installing the ammonia refrigeration pipeline, the pipeline bracket has multiple elevation and position control points, high adjustment difficulty and complex forming, and the installation control of the pipeline bracket is a key process in the construction process of the sled track of the snow mobile. Because the track modeling changes continuously, the form of each group of pipeline support is different, how to ensure the position of the pipeline support to be accurate is the technical problem which needs to be solved at present.
Disclosure of Invention
The invention provides a method for monitoring a track frame system, which is used for carrying out precision monitoring on a pipeline bracket and the like when the frame system is erected, is quicker and more convenient to monitor, improves the construction efficiency, and has the following specific scheme:
a track frame system monitoring method, comprising:
establishing a three-dimensional coordinate system, acquiring a three-dimensional model of a pipeline bracket, sequentially analyzing the shape structure of each pipeline bracket in the three-dimensional model of the pipeline bracket, and selecting a plurality of characteristic points on each pipeline bracket to obtain the three-dimensional coordinate value of each characteristic point;
respectively establishing a right-angle local coordinate system at each pipeline bracket, and performing coordinate conversion according to the relationship between the right-angle local coordinate system and the three-dimensional coordinate system to obtain a right-angle theoretical coordinate value of the feature point relative to the right-angle local coordinate system;
arranging a plurality of observation piers, and measuring a rectangular observation coordinate value of each feature point in the rectangular local coordinate system at the observation piers;
and comparing whether the difference value of the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
Optionally, the establishing of the rectangular local coordinate system includes:
and taking the intersection point of the pipeline support and the middle line of the track as a coordinate origin, selecting a projection line of the pipeline support on the horizontal plane as one coordinate axis, selecting a vertical line as the other coordinate axis, and selecting a third coordinate axis in the direction perpendicular to the two coordinate axes.
Optionally, the method further comprises: and installing a refrigeration pipeline on the pipeline support, and repeatedly measuring and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
Optionally, the method further comprises: and installing a leveling pipe on the refrigeration pipeline, and repeatedly measuring and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
Optionally, the method further comprises: obtaining a three-dimensional model of the leveling pipe; and installing a leveling pipe on the refrigeration pipeline, carrying out three-dimensional scanning on the leveling pipe to obtain a three-dimensional model of the leveling pipe, comparing and analyzing the three-dimensional model with a design model, and determining the position of an area with an error exceeding the design requirement.
Optionally, the acquiring a three-dimensional model of a pipe support comprises: and carrying out three-dimensional modeling according to the plan view and the elevation view of the pipeline bracket.
Optionally, the measuring, at the observation pillar, rectangular observation coordinate values of the feature points includes: and arranging a precision total station at the observation mop, wherein the precision total station measures the rectangular observation coordinate value of each characteristic point.
The invention provides a method for monitoring a track frame system, which comprises the steps of establishing a three-dimensional coordinate system, obtaining a three-dimensional model of a pipeline bracket, sequentially analyzing the shape structure of each pipeline bracket in the three-dimensional model of the pipeline bracket, selecting a plurality of characteristic points in each pipeline bracket, for example, selecting 3-7 characteristic points on each pipeline bracket, and obtaining the three-dimensional coordinate values of the characteristic points in the three-dimensional coordinate system; respectively establishing respective right-angle local coordinate systems at each pipeline bracket, and performing coordinate conversion according to the relationship between the right-angle local coordinate systems and the three-dimensional coordinate systems to obtain a right-angle theoretical coordinate value of the characteristic point relative to the right-angle local coordinate systems; the right-angle theoretical coordinate value is obtained by calculation and is a theoretical numerical value; laying an observation pier, measuring a rectangular observation coordinate value of each characteristic point in a rectangular local coordinate system at the observation pier, and measuring a rectangular observation coordinate value of each characteristic point; and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range, and judging whether the precision of the pipeline support meets the requirement. According to the invention, through coordinate conversion, the three-dimensional coordinate of the feature point is converted into a right-angle theoretical coordinate value in a right-angle local coordinate system, and because the distance between the right-angle local coordinate system and the feature point is short, the relative position relation between the feature point and the coordinate origin in the right-angle local coordinate system is convenient to observe, and compared with the coordinate value of the feature point in the three-dimensional coordinate system which is directly measured, the monitoring is faster and more convenient, the construction precision is ensured, and the construction efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a track frame system monitoring method of the present invention.
Detailed Description
The core of the invention is to provide a method for monitoring a track frame system, which is used for accurately monitoring a pipeline bracket and the like when the frame system is erected, is quicker and more convenient to monitor and improves the construction efficiency.
In order to make those skilled in the art better understand the technical solution of the present invention, the track frame system monitoring method of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a flow chart of the track frame system monitoring method of the present invention includes the following steps:
s1, establishing a three-dimensional coordinate system, acquiring a three-dimensional model of the pipeline support, sequentially analyzing the shape structure of each pipeline support in the three-dimensional model of the pipeline support, and selecting a plurality of characteristic points on each pipeline support to acquire the three-dimensional coordinate value of each characteristic point; the three-dimensional coordinate system is a coordinate system of the whole track, the origin of coordinates of the three-dimensional coordinate system can be selected from the starting point of the central line of the track, the coordinate values of all positions of the three-dimensional model are determined in the three-dimensional coordinate system, all pipeline supports are mutually independent parts, 3-7 measuring points are selected from all pipeline support monomers as characteristic points, all pipeline supports need to select the characteristic points, the three-dimensional coordinate values of the selected characteristic points are obtained through the positions of the three-dimensional model of the pipeline supports in the three-dimensional coordinate system, and the three-dimensional coordinate values of the characteristic points are theoretical values and are the coordinate values of the positions of the pipeline supports in the three-dimensional coordinate system during design. The three-dimensional coordinate values of the characteristic points on each pipeline support have the same coordinate system, and the coordinate values of the characteristic points are distances relative to the same coordinate origin.
S2, respectively establishing a right-angle local coordinate system at each pipeline bracket, and performing coordinate conversion according to the relation between the right-angle local coordinate system and the three-dimensional coordinate system to obtain a right-angle theoretical coordinate value of the characteristic point relative to the right-angle local coordinate system; the right-angle theoretical coordinate value is obtained by converting the relation between the three-dimensional coordinate system and the right-angle local coordinate system, is a theoretical calculation result, and the theoretical space position designed by each characteristic point is determined, but the coordinate expression of each characteristic point is different due to different selection of the coordinate system, and each characteristic point has different coordinate values in the three-dimensional coordinate system and the right-angle local coordinate system; the coordinate value of the feature point in the rectangular local coordinate system is called a rectangular theoretical coordinate value, and the rectangular theoretical coordinate value is a theoretical calculation result and is a theoretical position in design. And the right-angle theoretical coordinate values of all the characteristic points are obtained through the calculation of the relative relationship between the coordinate systems, so that the subsequent monitoring and comparison process is facilitated.
S3, arranging a plurality of observation piers, and measuring a rectangular observation coordinate value of each feature point in a rectangular local coordinate system at the observation piers; the observation pier is arranged on the side of the pipeline support and has a certain distance with the pipeline support, and the set position of the observation pier needs to comprehensively consider the actual terrain and the distance from the pipeline support, so that the pipeline support can be observed conveniently; the observation pier is a positioning support structure, is usually columnar, is fixed on the ground, and the top end is used for supporting the monitoring equipment and positioning the position of the monitoring equipment. The observation pier is far away from the position of the pipeline support, and the monitoring equipment arranged on the observation pier is used for measuring the rectangular observation coordinate values of all the characteristic points in the rectangular local coordinate system, namely measuring the distance between each characteristic point and the coordinate origin of the rectangular local coordinate system on each coordinate axis. The rectangular observation coordinate value is a measured value obtained by actual monitoring and is an actual spatial position value of each characteristic point on the pipeline bracket in a rectangular local coordinate system.
And S4, comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within the error range, if the difference value is within the error range, the characteristic point meets the design requirement, if the difference value is beyond the error range, the characteristic point does not meet the design requirement, and measuring the characteristic point which does not meet the design requirement in the same way after corresponding adjustment and correction until the design requirement is met.
The invention relates to a pipeline support, which is characterized in that a right-angle theoretical coordinate and a right-angle observation coordinate are coordinate values in a right-angle local coordinate system, a three-dimensional coordinate system is a right-angle coordinate comprising XYZ axes which are vertical to each other through coordinate conversion, the coordinate system is generally a universal coordinate system of the whole city, the coordinate axes point to a fixed direction, the origin point of the coordinate system is far away from a construction area, so the numerical value of the coordinate values is generally large, and the coordinate axes point to be fixed and the horizontal position of a pipeline support continuously changes, so that the coordinate system is inconvenient for positioning the characteristic point of the pipeline support; according to the track frame system monitoring method provided by the invention, the respective right-angle local coordinate systems are respectively arranged at each pipeline support, the right-angle coordinate value of the feature point on each pipeline support in the right-angle local coordinate system is obtained by the coordinate value of each feature point in the same three-dimensional coordinate system, the right-angle observation coordinate value and the right-angle theoretical coordinate value under the standard of the right-angle local coordinate system are directly compared, and the distance between each feature point and the coordinate origin of the right-angle local coordinate system is short, so that the track frame system monitoring method is convenient to measure, has small error, enables the precision monitoring of the pipeline supports to be fast and convenient, ensures the construction precision and improves the construction efficiency.
On the basis of the scheme, the establishment of the rectangular local coordinate system comprises the following steps:
and taking the intersection point of the pipeline support and the middle line of the track as the origin of coordinates, selecting a projection line of the pipeline support on the horizontal plane as one coordinate axis, selecting a vertical line as the other coordinate axis, and selecting a third coordinate axis in the direction perpendicular to the two coordinate axes. The center line of the track is a curve and is consistent with the extending state of the track, the track is formed by supporting all the pipeline supports together, the center line of the track and all the pipeline supports are provided with an intersection point, and each right-angle local coordinate system takes the intersection point as an origin point; the projection of the pipeline supports on the horizontal plane is a straight line, namely viewed from the top, each pipeline support is a straight line, the origin of coordinates of the right-angle local coordinate system is on the straight line, and the first coordinate axis is formed by horizontally extending along the direction of the straight line; making a straight line in a direction perpendicular to a horizontal plane through the coordinate origin of the right-angle local coordinate system to form a second coordinate axis; the third coordinate system passes through the coordinate origin of the rectangular local coordinate system and is perpendicular to the first coordinate axis and the second coordinate axis.
Each coordinate axis of the right-angle local coordinate system is respectively a measuring range S, a longitudinal deviation L and a relative height H, and specifically, the relative height H is a vertical height of the characteristic point from the origin of coordinates of the right-angle local coordinate system, namely, is located on the second coordinate axis; the longitudinal deviation L is the distance of the characteristic point deviating from the center line of the track, namely is positioned on the first coordinate axis; the third coordinate axis is located in the tangential direction of the origin of coordinates along the center line of the track, that is, the range S is the distance from the characteristic point to the origin of coordinates along the extending direction of the track.
The rectangular coordinate provided by the application comprises three parameters which are respectively a measuring range S, a longitudinal deviation L and a relative height H, and each characteristic point respectively obtains three parameters corresponding to a coordinate origin of a rectangular local coordinate system; the coordinate origin of each rectangular local coordinate system can correspondingly measure a plurality of characteristic points so as to improve the monitoring efficiency. The number of observation mounds is less than the quantity of pipe support, and the monitoring facilities that erects at every observation mound department can be used to observe the characteristic point on a plurality of pipe support.
After the measurement process is applied to the installation of the pipeline supports, each pipeline support is a relatively independent whole; furthermore, the track frame system monitoring method of the invention further comprises: and (3) installing a refrigeration pipeline on the pipeline support, and repeatedly measuring and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within the error range.
The pipeline support is a supporting structure, a refrigeration pipeline is arranged on the pipeline support, the direction of the refrigeration pipeline is consistent with the extending direction of the track, the upper part of the track support is arc-shaped, and a plurality of refrigeration pipelines are arranged side by side to form an arc-shaped surface; after the refrigeration pipelines are completely installed, certain pressure is applied to the pipeline supports, and the pipeline supports are likely to deform, so that after the refrigeration pipelines are installed, the rectangular observation coordinate values and the rectangular theoretical coordinate values of the pipeline supports are repeatedly detected again, and the installation accuracy of the pipeline supports is guaranteed.
The track frame system monitoring method of the invention also comprises the following steps: and (3) installing a leveling pipe on the refrigeration pipeline, and repeatedly measuring and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
The leveling pipe is of an arc-shaped structure, is consistent with the cross section of the track in shape, is attached and fixed on the refrigerating pipeline, plays a role in positioning the refrigerating pipeline on one hand, limits the refrigerating pipeline from the upper part, and clamps the refrigerating pipeline from the upper part and the lower part with the leveling pipe and the pipeline support respectively; on the other hand, the leveling pipe is used for positioning the concrete poured subsequently, and the surface of the concrete is guaranteed to be flat. And detecting whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value of the characteristic point is within the error range or not after the leveling pipe is installed, and if the difference value exceeds the error range, correcting and repeatedly measuring until the error meets the design requirement.
In addition to the repeated measurement, in order to further ensure the precision of the track, the invention also comprises: obtaining a three-dimensional model of the leveling pipe; after the leveling pipe is installed on the refrigeration pipeline, the leveling pipe is scanned in three dimensions to obtain a three-dimensional model of the leveling pipe, the three-dimensional model is compared with a design model for analysis, and the position of an area with an error exceeding the design requirement is determined.
After the position of the pipeline support is monitored, in order to guarantee the accuracy of subsequent concrete pouring, the position of the leveling pipe needs to be positioned and monitored so as to guarantee the pouring accuracy of the surface of the track, therefore, the three-dimensional position of the leveling pipe is measured after the leveling pipe is installed, the position of an area with an error exceeding a design requirement is determined after the three-dimensional position of the leveling pipe is compared with a three-dimensional model of the leveling pipe, and the concrete is re-measured after correction until the design requirement is met and then the concrete is sprayed.
The process of obtaining the three-dimensional model of the pipeline bracket related to the above process specifically includes: performing three-dimensional modeling according to a plan view and a vertical view of the pipeline bracket; and the plan view, namely the projection of the track on the horizontal plane, the elevation view, namely the projection of the track in the vertical direction, and the three-dimensional model of the pipeline bracket is obtained by integrating the plan view and the elevation view.
The rectangular observation coordinate value of each characteristic point is measured at the observation pier, and the method comprises the following steps: the precise total station is arranged on the observation pier, measures the rectangular observation coordinate value of each characteristic point through the precise total station, is used as monitoring equipment and is supported by the observation pier, is used as point measuring equipment, and can accurately measure the relative position of each characteristic point and the coordinate origin on the pipeline support.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method for monitoring a track frame system, comprising:
establishing a three-dimensional coordinate system, acquiring a three-dimensional model of a pipeline bracket, sequentially analyzing the shape structure of each pipeline bracket in the three-dimensional model of the pipeline bracket, and selecting a plurality of characteristic points on each pipeline bracket to obtain the three-dimensional coordinate value of each characteristic point;
respectively establishing a right-angle local coordinate system at each pipeline bracket, and performing coordinate conversion according to the relationship between the right-angle local coordinate system and the three-dimensional coordinate system to obtain a right-angle theoretical coordinate value of the feature point relative to the right-angle local coordinate system; the establishment of the rectangular local coordinate system comprises the following steps:
taking the intersection point of the pipeline support and the middle line of the track as a coordinate origin, selecting a projection line of the pipeline support on a horizontal plane as one coordinate axis, selecting a vertical line as the other coordinate axis, and selecting a third coordinate axis in a direction perpendicular to the two coordinate axes;
arranging a plurality of observation piers, and measuring a rectangular observation coordinate value of each feature point in the rectangular local coordinate system at the observation piers;
and comparing whether the difference value of the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
2. The track frame system monitoring method of claim 1, further comprising: and installing a refrigeration pipeline on the pipeline support, and repeatedly measuring and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
3. The track frame system monitoring method of claim 2, further comprising: and installing a leveling pipe on the refrigeration pipeline, and repeatedly measuring and comparing whether the difference value between the rectangular observation coordinate value and the rectangular theoretical coordinate value is within an error range.
4. The track frame system monitoring method of claim 3, further comprising: obtaining a three-dimensional model of the leveling pipe; and installing a leveling pipe on the refrigeration pipeline, carrying out three-dimensional scanning on the leveling pipe to obtain a three-dimensional model of the leveling pipe, comparing and analyzing the three-dimensional model with a design model, and determining the position of an area with an error exceeding the design requirement.
5. The track frame system monitoring method of claim 4, wherein the obtaining a three-dimensional model of a pipe support comprises: and carrying out three-dimensional modeling according to the plan view and the elevation view of the pipeline bracket.
6. The track frame system monitoring method of claim 5, wherein the measuring at the observation pier a rectangular observation coordinate value of each of the feature points comprises: and arranging a precision total station at the observation mop, wherein the precision total station measures the rectangular observation coordinate value of each characteristic point.
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| CN117593367B (en) * | 2023-10-24 | 2024-07-19 | 北京城建集团有限责任公司 | Electrical equipment support positioning system |
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