A method for precise positioning and measurement of an electromechanical pipeline

Abstract

The application relates to pipeline positioning measurement and belongs to the technical field of pipeline positioning, in particular to a precise positioning and measurement method for electromechanical pipelines, which comprises a building structure, an XY axis coordinate, a total station, a laser range finder, a large prism, a small prism, an electromechanical arc-shaped pipeline and a BIM three-dimensional model; the total station is used for positioning and calibration of a two-dimensional plane reference point on site; the large prism and the small prism are used in cooperation with the total station; the application realizes precise conversion of spatial coordinates by means of a depth fusion technology of the BIM three-dimensional model and the two-dimensional measurement of the total station, develops dynamic reference point layout, breaks through the limitation of the number and position of reference points in traditional positioning, and establishes a standardized work flow of'measurement-modelling-reproduction', that is, intelligent optimization of positioning parameters of the total station-> automatic checking of prism measurement data-> one-key confirmation of pipeline elevation, so that the problem that positioning precision is difficult to guarantee and causes rework and modification is solved.

Description

Technical Field

[0001] This invention relates to the field of pipeline positioning technology, and in particular to a method for precise positioning and measurement of electromechanical pipelines. Background Technology

[0002] In electromechanical installation projects for irregularly shaped structures (such as arcs, curves, and irregular shapes), traditional pipe positioning methods mainly rely on building structural baselines and manual one-meter lines for reference.

[0003] During the measurement of existing electromechanical pipelines, the subjective error of manually setting the one-meter line due to the difference in the technical level of construction personnel, coupled with the deviation of the building structure itself, makes it difficult to guarantee the positioning accuracy. In areas with dense pipelines, multi-disciplinary spatial collisions are prone to occur, causing rework and demolition, reducing construction efficiency by an average of 30% to 40% (based on on-site measurement data). Summary of the Invention

[0004] To address the aforementioned technical challenges, this invention proposes a precise positioning and measurement method for electromechanical pipelines. By pioneering a deep fusion technology that integrates BIM 3D models with total station 2D measurements, it achieves precise spatial coordinate conversion, develops dynamic benchmark layout, and breaks through the limitations of traditional positioning methods on the number and location of reference points.

[0005] The technical solution to achieve the purpose of this invention is: a method for precise positioning and measurement of electromechanical pipelines, including building structure, XY axis coordinates, total station, laser rangefinder, large prism, small prism, electromechanical curved pipe, and BIM 3D model. The total station is used for the positioning and calibration of two-dimensional plane reference points on site; The large and small prisms are used in conjunction with the total station to locate multiple measuring points and obtain the XY axis coordinates of the reference point. The laser rangefinder is used to construct a surface by connecting reference points, and to establish a visual reference surface on site; The BIM 3D model is used to map 2D reference points and reference surfaces to 3D space and obtain the Z-axis coordinates of each measurement point.

[0006] In some embodiments, the installation location of the total station can be flexibly adjusted according to the characteristics of the building structure.

[0007] In some embodiments, the large prism and the small prism can be replaced according to the measurement accuracy requirements.

[0008] In some embodiments, the laser rangefinder constructs a three-dimensional spatial reference grid surface by topologically connecting discrete reference points, forming a field reference system that can be verified in real time.

[0009] In some embodiments, the BIM 3D model is modeled using 1:1 high-precision digital modeling to achieve accurate mapping from two-dimensional reference points to the three-dimensional coordinate system.

[0010] In some embodiments, the benchmark point observation based on the BIM 3D model can accurately obtain the Z-axis coordinates of each measuring point; by measuring the horizontal and vertical distances between the target point and the benchmark line, the design coordinates can be reproduced on-site at the millimeter level.

[0011] The significant advantages of this invention compared to existing technologies are: Firstly, this invention achieves precise conversion of spatial coordinates by pioneering a deep fusion technology of BIM 3D model and total station 2D measurement, develops dynamic benchmark layout, and breaks through the limitations of traditional positioning on the number and location of reference points. Secondly, this invention establishes a standardized workflow of "measurement-modeling-reproduction", namely, intelligent optimization of total station positioning parameters → automatic verification of prism measurement data → one-click confirmation of pipeline elevation; Thirdly, this invention has been verified through engineering practice, which can reduce the number of on-site surveyors by more than 50%, achieve a 100% reusability rate for benchmark points, and reduce rework costs by 60% to 80%. This solves the problem of insufficient positioning accuracy and the resulting rework and modification. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the four-point positioning method (electromechanical support positioning) planar structure provided in one embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the four-point positioning method (mechanical and electrical pipeline positioning) provided in one embodiment of the present invention.

[0013] Explanation of reference numerals in the attached figures: 1. Building structure; 2. XY axis coordinates; 3. Total station; 4. Laser rangefinder; 5. Large prism; 6. Small prism; 7. Electromechanical arc tube. Detailed Implementation

[0014] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] This invention provides an improved method for precise positioning and measurement of electromechanical pipelines. The technical solution of this invention is as follows: like Figures 1-2 As shown, a method for precise positioning and measurement of electromechanical pipelines includes a building structure 1, XY axis coordinates 2, a total station 3, a laser rangefinder 4, a large prism 5, a small prism 6, an electromechanical curved pipe 7, and a BIM 3D model. The total station 3 is used for positioning and calibrating two-dimensional plane reference points on site. The large prism 5 and small prism 6 are used in conjunction with the total station 3 to locate multiple measuring points and obtain the XY axis coordinates 2 of the reference points. The laser rangefinder 4 is used to construct a surface by connecting the reference points, establishing a visual reference surface on site. The BIM 3D model is used to visualize the two-dimensional... The benchmark point and benchmark surface data are mapped to three-dimensional space, and the Z-axis coordinates of each measuring point are obtained. Through the setting of the BIM three-dimensional model, the XY-axis coordinates of multiple benchmark points are first measured on site using a total station 3 with a large prism 5 and a small prism 6. Then, a benchmark grid surface is constructed using a laser rangefinder 4. These two-dimensional data are then imported into the BIM three-dimensional model, and the model automatically calculates the elevation (Z-axis coordinates) of each measuring point. Finally, the on-site surveyors use a total station 3 and a laser rangefinder 4 to reproduce and lay out the data based on the three-dimensional coordinates output by the model, and complete the precise installation of pipes or supports.

[0016] like Figure 2 As shown, in one embodiment, the installation position of the total station 3 can be flexibly adjusted according to the characteristics of the building structure 1, and the large prism 5 and small prism 6 can be replaced according to the measurement accuracy requirements; through the setting of the total station 3, the prism or the total station 3 can be flexibly replaced according to the accuracy requirements during the measurement process.

[0017] like Figure 2 As shown, in one embodiment, the laser rangefinder 4 constructs a three-dimensional spatial reference grid surface by topologically connecting discrete reference points, forming a field reference system that can be verified in real time.

[0018] like Figure 1 As shown, in one embodiment, the BIM 3D model adopts 1:1 high-precision digital modeling to achieve accurate mapping from two-dimensional reference points to the three-dimensional coordinate system.

[0019] like Figure 1 As shown, in one embodiment, the benchmark point observation based on the BIM 3D model can accurately obtain the Z-axis coordinates of each measuring point; by measuring the horizontal and vertical distances between the target point and the benchmark line, the design coordinates can be reproduced on-site at the millimeter level.

[0020] The specific working method is as follows: First, on-site, a total station (3) is used in conjunction with a large prism (5) and a small prism (6) to measure the XY axis coordinates (2) of multiple benchmark points. Then, a benchmark grid surface is constructed using a laser rangefinder (4). Next, this two-dimensional data is imported into the BIM three-dimensional model, which automatically calculates the elevation (Z-axis coordinate) of each measuring point. Finally, based on the three-dimensional coordinates output by the model, on-site surveyors use the total station (3) and laser rangefinder (4) to reproduce and lay out the data, completing the precise installation of pipes or supports. The entire system forms a closed loop of "measurement-modeling-reproduction," ensuring a positioning error ≤3mm.

[0021] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for precise positioning and measurement of electromechanical pipelines, comprising a building structure (1), XY axis coordinates (2), a total station (3), a laser rangefinder (4), a large prism (5), a small prism (6), an electromechanical arc-shaped pipe (7), and a BIM three-dimensional model, characterized in that: The total station (3) is used for the positioning and calibration of two-dimensional plane reference points on site; The large prism (5) and small prism (6) are used in conjunction with the total station (3) to locate multiple measuring points and obtain the XY axis coordinates (2) of the reference point. The laser rangefinder (4) is used to construct a surface by connecting reference points and establishing a visual reference surface on site; The BIM 3D model is used to map 2D reference points and reference surfaces to 3D space and obtain the Z-axis coordinates of each measurement point.

2. The method for precise positioning and measurement of electromechanical pipelines according to claim 1, characterized in that: The installation position of the total station (3) can be flexibly adjusted according to the characteristics of the building structure (1).

3. The method for precise positioning and measurement of electromechanical pipelines according to claim 2, characterized in that: The large prism (5) and small prism (6) can be replaced according to the measurement accuracy requirements.

4. The method for precise positioning and measurement of electromechanical pipelines according to claim 3, characterized in that: The laser rangefinder (4) constructs a three-dimensional spatial reference grid surface by topologically connecting discrete reference points, forming a field reference system that can be verified in real time.

5. The method for precise positioning and measurement of electromechanical pipelines according to claim 3, characterized in that: The BIM 3D model uses 1:1 high-precision digital modeling to achieve accurate mapping from 2D reference points to the 3D coordinate system.

6. The method for precise positioning and measurement of electromechanical pipelines according to claim 5, characterized in that: The benchmark point observation based on the BIM 3D model can accurately obtain the Z-axis coordinates of each measuring point; by measuring the horizontal and vertical distances between the target point and the benchmark line, the design coordinates can be reproduced on-site at the millimeter level.

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