CN117828723A - High-precision detection and calibration method for steel member installation based on augmented reality technology - Google Patents
High-precision detection and calibration method for steel member installation based on augmented reality technology Download PDFInfo
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- CN117828723A CN117828723A CN202311805647.7A CN202311805647A CN117828723A CN 117828723 A CN117828723 A CN 117828723A CN 202311805647 A CN202311805647 A CN 202311805647A CN 117828723 A CN117828723 A CN 117828723A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 title claims abstract description 39
- 230000003190 augmentative effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 5
- 238000012790 confirmation Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 5
- 238000004088 simulation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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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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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The invention relates to a high-precision detection and calibration method for steel member installation based on an augmented reality technology, which comprises the following steps: 1. building a high-precision three-dimensional model of the component based on the design target, and performing simulated assembly to accurately position the component; 2. superposing the high-precision model and the entity member in the virtual space by utilizing an augmented reality technology; 3. performing real-mould space consistency judgment by adopting real-mould volume IOU coincidence calculation, and roughly adjusting the installation accuracy of the steel member; 4. positioning scanning of the installation component is carried out by adopting a laser radar, and high-precision three-dimensional point cloud information of the outer contour of the component is obtained in real time; 5. randomly selecting non-collinear three points in the high-precision model as reference points, and determining corresponding points in the real-time three-dimensional point cloud; 6. adjusting the installation position and angle of the solid steel member by taking the high-precision model reference point space coordinates as a benchmark, and calibrating the corresponding point coordinates in the three-dimensional point cloud; 7. and checking the coincidence condition installation calibration confirmation of the augmented reality model and the entity component in the virtual space.
Description
Technical Field
The invention belongs to the technical field of steel structure installation, and particularly relates to a high-precision detection and calibration method for steel member installation based on an augmented reality technology.
Background
The fabricated steel structure system has the excellent characteristics of light weight, high strength, rapid assembly, excellent performance, cost saving and the like, compared with a concrete building structure, the self weight of the fabricated steel structure system can be reduced by about 30%, the construction period is saved by about 50%, and the material recycling rate is as high as 70%, so that the fabricated steel structure system is an important development direction of the building industry in China. The installation accuracy of the steel structure member is an important index for measuring the construction quality of the steel structure member, the influence on the safety of the whole structure is important, and if the accuracy is not sufficiently controlled, error accumulation is caused, and even the installation defect that is difficult to compensate is caused. The current steel structure member installation accuracy control mainly uses design files, relevant technical standards and test actual measurement data as the basis, and the relative positions of the members are repeatedly adjusted according to parameters such as coaxiality, parallelism, perpendicularity and the like, so that the adjustment process is complex in operation and not visual, human factors have large influence, and the high-accuracy installation requirement is difficult to meet.
Therefore, it is necessary to develop a high-precision detection and calibration method for steel member installation based on the augmented reality technology, and to improve the visualization degree and the installation precision of the steel structure member installation process.
Disclosure of Invention
The invention aims to provide a high-precision detection and calibration method for steel member installation based on an augmented reality technology, and provides a visual and intelligent solution for the problems of difficult control and complex operation of the current steel structure member installation precision.
In order to solve the technical problems, the invention comprises the following technical scheme:
a steel member installation high-precision detection and calibration method based on an augmented reality technology comprises the following steps:
step S1: building a high-precision three-dimensional model of the component based on the design target, and accurately positioning the component through simulation assembly;
step S2: superposing the high-precision model and the entity member in the virtual space by utilizing an augmented reality technology;
step S3: performing real-mould space consistency judgment by adopting real-mould volume IOU coincidence calculation, and roughly adjusting the installation accuracy of the steel member;
step S4: positioning scanning of the installation component is carried out by adopting a laser radar, and high-precision three-dimensional point cloud information of the outer contour of the component is obtained in real time;
step S5: randomly selecting non-collinear three points in the high-precision model as reference points, and determining corresponding points in the real-time three-dimensional point cloud;
step S6: adjusting the installation position and angle of the solid steel member by taking the high-precision model reference point space coordinates as a benchmark, and calibrating the corresponding point coordinates in the three-dimensional point cloud;
step S7: and checking the superposition condition of the augmented reality model and the entity component in the virtual space to perform installation calibration confirmation.
Further, the step S3 of adopting the real mode volume IOU overlap ratio operation includes:
calculating the volume coincidence degree of the solid steel structural member and the high-precision member virtual body model in the virtual space, taking the ratio of the intersection and the union of the solid steel structural member and the high-precision member virtual body model as a measurement standard, wherein a specific calculation formula is as follows
Wherein V is Ω Is solid steel structural member volume, V Ω’ For the high-precision component virtual body model volume, if IOU
And more than or equal to 95 percent, the requirement of coarse adjustment of the installation accuracy of the component is met.
Further, in the step S5, the reference point is a steel structural member corner, and the external corner is selected.
Further, the high-precision model in the step S5 is built by a BIM or 3D Max software platform.
Further, in step S7, the mobile terminal handheld device is used to view the superposition of the augmented reality model and the physical component in the virtual space.
Compared with the prior art, the invention has the beneficial technical effects that:
according to the high-precision detection and calibration method for steel member installation based on the augmented reality technology, provided by the invention, through quadric surface fitting, measurement errors caused by discontinuity of monitoring data are avoided, the accuracy of the monitoring data is improved, the accurate calculation of large deformation of the whole underground continuous wall body is realized, and a large deformation area of a surrounding is found out timely and comprehensively.
Drawings
FIG. 1 is a schematic diagram of three-dimensional point cloud coordinate calibration in a high-precision detection and calibration method for steel member installation based on augmented reality technology;
fig. 2 is a schematic flow chart of the high-precision detection and calibration method for steel member installation based on the augmented reality technology.
Detailed Description
The high-precision detection and calibration method for steel member installation based on the augmented reality technology provided by the invention is further described in detail below with reference to specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Example 1
A steel member installation high-precision detection and calibration method based on an augmented reality technology comprises the following steps:
step S1: establishing a high-precision three-dimensional model of the component based on the design target, namely a high-precision virtual model omega', and carrying out accurate positioning on the component through simulation assembly;
step S2: superposing the high-precision model and a solid component, namely a solid steel structure component omega, in a virtual space by utilizing an augmented reality technology;
step S3: performing real-mould space consistency judgment by adopting real-mould volume IOU coincidence calculation, and roughly adjusting the installation accuracy of the steel member;
step S4: positioning scanning of the installation component is carried out by adopting a laser radar, and high-precision three-dimensional point cloud information of the outer contour of the component is obtained in real time;
step S5: randomly selecting non-collinear three points A ', B ', C ' in the high-precision model as reference points, and determining corresponding points in non-collinear reference points A, B, C on the omega surface of the real-time three-dimensional point cloud entity steel structure member;
step S6: adjusting the omega installation position and angle of the solid steel member by taking the space coordinates of the reference point position of the high-precision model as a benchmark, and calibrating the coordinates of the corresponding point position in the three-dimensional point cloud;
step S7: and checking the superposition condition of the augmented reality model and the entity component in the virtual space to perform installation calibration confirmation.
In this embodiment, more preferably, the step S3 of using the real mode volume IOU overlap ratio operation includes:
calculating the volume coincidence degree of the solid steel structural member and the high-precision member virtual body model in the virtual space, taking the ratio of the intersection and the union of the solid steel structural member and the high-precision member virtual body model as a measurement standard, wherein a specific calculation formula is as follows
Wherein V is Ω Is solid steel structural member volume, V Ω’ Is the volume of the high-precision component virtual body model, if IOU is not less than
95% of the components are considered to meet the coarse adjustment requirement of the installation accuracy of the components.
In this embodiment, more preferably, the reference point in step S5 selects a steel structural member corner point, and optimally selects an external corner.
In this embodiment, more preferably, the high-precision model in step S5 is built by a BIM or 3DMax software platform.
In this embodiment, more preferably, the step S7 is performed by the mobile terminal handheld device to view the superposition of the augmented reality model and the physical component in the virtual space.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples. The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. The high-precision detection and calibration method for steel member installation based on the augmented reality technology is characterized by comprising the following steps of:
step S1: building a high-precision three-dimensional model of the component based on the design target, and accurately positioning the component through simulation assembly;
step S2: superposing the high-precision model and the entity member in the virtual space by utilizing an augmented reality technology;
step S3: performing real-mould space consistency judgment by adopting real-mould volume IOU coincidence calculation, and roughly adjusting the installation accuracy of the steel member;
step S4: positioning scanning of the installation component is carried out by adopting a laser radar, and high-precision three-dimensional point cloud information of the outer contour of the component is obtained in real time;
step S5: randomly selecting non-collinear three points in the high-precision model as reference points, and determining corresponding points in the real-time three-dimensional point cloud;
step S6: adjusting the installation position and angle of the solid steel member by taking the high-precision model reference point space coordinates as a benchmark, and calibrating the corresponding point coordinates in the three-dimensional point cloud;
step S7: and checking the superposition condition of the augmented reality model and the entity component in the virtual space to perform installation calibration confirmation.
2. The method according to claim 1, wherein the step S3 of using the real mode volume IOU overlap ratio operation comprises:
calculating the volume coincidence degree of the solid steel structural member and the high-precision member virtual body model in the virtual space by twoThe ratio of intersection and union of the people is used as a measurement standard, and a specific calculation formula is thatWherein V is Ω Is solid steel structural member volume, V Ω’ The volume of the high-precision component virtual model is considered to meet the coarse adjustment requirement of the component installation precision if the IOU is more than or equal to 95 percent.
3. The method according to claim 2, wherein the reference points in step S5 are selected from steel structural member corner points and external corners.
4. A method according to claim 3, wherein the high-precision model in step S5 is built by means of a BIM or 3D Max software platform.
5. The method according to claim 4, wherein the step S7 is performed by the mobile terminal handheld device to view the coincidence of the augmented reality model and the physical member in the virtual space.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311805647.7A CN117828723A (en) | 2023-12-26 | 2023-12-26 | High-precision detection and calibration method for steel member installation based on augmented reality technology |
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| CN202311805647.7A CN117828723A (en) | 2023-12-26 | 2023-12-26 | High-precision detection and calibration method for steel member installation based on augmented reality technology |
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| CN (1) | CN117828723A (en) |
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- 2023-12-26 CN CN202311805647.7A patent/CN117828723A/en active Pending
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