CN116295002A - Bridge pier size deviation detection method, system, terminal and storage medium thereof - Google Patents
Bridge pier size deviation detection method, system, terminal and storage medium thereof Download PDFInfo
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- CN116295002A CN116295002A CN202310092659.3A CN202310092659A CN116295002A CN 116295002 A CN116295002 A CN 116295002A CN 202310092659 A CN202310092659 A CN 202310092659A CN 116295002 A CN116295002 A CN 116295002A
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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 invention relates to computer-aided quality detection of piers, and discloses a method, a system, a terminal and a storage medium for detecting the size deviation of piers, wherein a three-dimensional laser scanner is used for scanning piers to be detected, and the three-dimensional laser scanning has the characteristics of non-contact, high precision, high scanning efficiency and the like; scanning the bridge pier can effectively avoid unnecessary errors in the artificial measurement process; when scanning the bridge pier, setting precision parameters, configuration parameters, time parameters and the like of the scanner; planning a scanning sequence, a scanning path and scanning times; and (3) performing point cloud quality assessment on the point cloud file obtained by scanning: preprocessing, splicing and manually cutting the point cloud file to obtain a result point cloud model; the BIM model and the point cloud model are imported into data comparison software for comparison, corresponding size deviation reports are generated, reliable and accurate basis is provided for bridge size deviation detection, and the problems of low accuracy, low detection rate and the like of traditional bridge pier size deviation detection are solved.
Description
Technical Field
The invention relates to computer-aided quality detection of piers, in particular to a method, a system, a terminal and a storage medium for detecting size deviation of piers.
Background
The bridge pier is a main structure for connecting the bridge superstructure and the foundation, and has the main functions of bearing the load transmitted by the superstructure and transmitting the self weight of the load to the foundation through the foundation. The quality control of the bridge pier is an important technical measure for guaranteeing the safe operation of the bridge.
In the traditional engineering, the quality control of the concrete bridge pier is generally carried out manually, and the detection efficiency and the detection precision of the bridge pier with the different structures are low; for tall piers, the detection process has a certain danger and is difficult.
The three-dimensional laser scanning technology is used as an emerging technology, a three-dimensional live-action model can be built by acquiring geometric and texture data of a real scene, meanwhile, the BIM technology can be used for building an accurate three-dimensional model according to a construction drawing, the requirements on dimensional deviation control of a pier are high, accurate complex time is difficult, the detection rate is slow, and a certain solution can be provided for quality control of the pier through the three-dimensional laser scanning and BIM technology.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a bridge pier size deviation detection method, a system, a terminal and a storage medium thereof, so as to solve the technical problems that the bridge pier size deviation detection in the prior art always needs contact measurement, and the measurement is greatly influenced by human factors and has low accuracy.
The invention is realized by the following technical scheme:
a bridge pier size deviation detection method comprises the following steps:
performing three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
and building a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the bridge pier size deviation detection work.
Preferably, the process of scanning the pier to be scanned by the rear three-dimensional laser scanner to form the point cloud file is as follows:
setting scanner parameters, wherein the parameters comprise quality, resolution, color and scanning range;
and designing the scanning accuracy, the scanning time, the scanning sequence, the scanning path and the scanning times of the scanning instrument with the set parameters aiming at the characteristics of the pier to be scanned, starting to scan the pier to be scanned to obtain scanning data, returning to reset the parameters of the scanner when the scanning data does not meet the scanning requirement, and completing the scanning to form the point cloud file.
Preferably, the processing process of the point cloud file is as follows:
the point cloud file is imported into point cloud processing software for configuration, and then the point cloud file is preprocessed;
and pre-splicing the preprocessed point cloud files, judging whether the precision of the pre-spliced point cloud files meets the requirement, and when the precision of the pre-spliced point cloud files does not meet the requirement, adjusting splicing parameters to splice again, otherwise, finishing the cutting of the point cloud model, and outputting the point cloud model.
Preferably, the BIM model and the point cloud model are imported into data comparison software for fitting comparison, wherein test data in the point cloud model and reference data in the BIM model are aligned, 3D model comparison is carried out respectively, and the chromatogram is adjusted to be vertical, so that a size comparison deviation report is generated.
Preferably, the BIM comprises geometric information and non-geometric information, wherein the geometric information comprises pier type information, pier name information, pier size information and pier elevation information; the non-geometric information comprises pier material information, reinforcement protection layer thickness information, construction unit information and construction time information.
A pier dimensional deviation detection system, comprising:
the model building module is used for carrying out three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
the data processing module is used for establishing a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the detection work of the size deviation of the bridge pier.
A mobile terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of a pier size deviation detection method as described above when executing the computer program.
A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of a pier size deviation detecting method as described above.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a bridge pier size deviation detection method, which utilizes a three-dimensional laser scanner to scan a bridge pier to be detected, and the three-dimensional laser scanning has the characteristics of non-contact, high precision, high scanning efficiency and the like; scanning the bridge pier can effectively avoid unnecessary errors in the artificial measurement process; when the bridge pier is scanned, the precision parameters, the configuration parameters, the time parameters and the like of the scanner are set according to the characteristics of the bridge pier and the scanning notice of the scanning equipment; planning a scanning sequence, a scanning path and scanning times; and (3) performing point cloud quality assessment on the point cloud file obtained by scanning: preprocessing, splicing and manually cutting the point cloud file to obtain a result point cloud model; the BIM model and the point cloud model are imported into data comparison software for comparison, corresponding size deviation reports are generated, reliable and accurate basis is provided for bridge size deviation detection, and the problems of low accuracy, low detection rate and the like of traditional bridge pier size deviation detection are solved.
Drawings
FIG. 1 is a flow chart of a bridge pier size deviation detection method of the present invention;
FIG. 2 is a flow chart of a point cloud file formed by scanning a pier to be scanned in the invention;
FIG. 3 is a flow chart of cloud file processing in accordance with the present invention;
FIG. 4 is a flow chart of a model comparison process of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawing figures:
the invention aims to provide a bridge pier size deviation detection method, a system, a terminal and a storage medium thereof, which are used for solving the technical problems that in the prior art, the bridge pier size deviation detection always needs contact measurement, the measurement is greatly influenced by human factors, and the accuracy is low.
Specifically, according to fig. 1, the bridge pier size deviation detection method includes the following steps:
s1, performing three-dimensional laser scanning on a pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
s2, building a BIM model, performing fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the bridge pier size deviation detection work.
Specifically, the process of scanning the pier to be scanned by the rear three-dimensional laser scanner to form the point cloud file is as follows:
setting scanner parameters, wherein the parameters comprise quality, resolution, color and scanning range;
and designing the scanning accuracy, the scanning time, the scanning sequence, the scanning path and the scanning times of the scanning instrument with the set parameters aiming at the characteristics of the pier to be scanned, starting to scan the pier to be scanned to obtain scanning data, returning to reset the parameters of the scanner when the scanning data does not meet the scanning requirement, and completing the scanning to form the point cloud file.
Specifically, the processing process of the point cloud file is as follows:
the point cloud file is imported into point cloud processing software for configuration, and then the point cloud file is preprocessed;
and pre-splicing the preprocessed point cloud files, judging whether the precision of the pre-spliced point cloud files meets the requirement, and when the precision of the pre-spliced point cloud files does not meet the requirement, adjusting splicing parameters to splice again, otherwise, finishing the cutting of the point cloud model, and outputting the point cloud model.
Specifically, the BIM model and the point cloud model are led into data comparison software for fitting comparison, wherein test data in the point cloud model and reference data in the BIM model are aligned, 3D model comparison is carried out respectively, and the chromatogram is adjusted to be vertical, so that a size comparison deviation report is generated.
Specifically, the BIM model comprises geometric information and non-geometric information, wherein the geometric information comprises information such as pier type information, pier name information, pier size information, pier elevation and the like; the non-geometric information comprises information such as pier materials, reinforcement protection layer thickness, construction units, construction time and the like.
Examples
According to the method shown in fig. 2, when a three-dimensional laser scanner is selected for pier scanning, firstly, parameter setting of the three-dimensional laser scanner is performed, including quality, resolution, color, scanning range and the like. For bridge pier projects, the scanning quality is preferably set according to the environment (mainly comprising 2x (optimal scanning environment, considering time factors), 3x (outdoor cloudy day scanning) and 4x (when the outdoor sunny day has a requirement on the scanning distance or outdoor bad weather condition)); the resolution is preferably set to 1/4 or 1/5; selecting whether to take a color picture or not during scanning according to actual requirements; the scanning range is generally from-60 DEG to 90 DEG in the vertical direction and from 0 DEG to 360 DEG in the horizontal direction. The scanning mode directly influences the quality of the point cloud model, and the scanning sequence, the scanning path and the scanning times are planned according to the characteristics of the bridge pier to be scanned and the scanning notice of the scanning equipment; in the scanning process, the interference of surrounding conditions is avoided, and the scanning is performed when the light is sufficient, so that a point cloud file is formed.
According to the method shown in fig. 3, the point cloud files are imported into the point cloud processing software for configuration, then the point cloud files of different scanning sites are preprocessed, then the processed point cloud files are pre-spliced, and when the precision requirement is met, the point cloud model is cut through manual simplification, so that the point cloud model is formed.
According to fig. 4, a point cloud model (E57 format) and a BIM model (FBX format) are respectively imported into data comparison software, then test data in the point cloud model and reference data in the BIM model are automatically aligned or manually aligned until accuracy meets requirements, so that 3D model comparison is performed, and finally chromatographic values are manually adjusted to generate a size comparison deviation report.
In summary, according to the bridge pier size deviation detection method provided by the invention, the three-dimensional laser scanning is adopted to perform non-contact data acquisition on the bridge pier to be detected, so that the effect is high, the data is accurate, and the problem that the influence of human factors is large is avoided; the point cloud model is compared with the BIM model, a corresponding size deviation report is formed, and the size deviation of any position can be visually checked.
The invention also provides a pier size deviation detection system, which comprises a model building module and a data processing module;
the model building module is used for carrying out three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
the data processing module is used for establishing a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the detection work of the size deviation of the bridge pier.
The invention also provides a mobile terminal comprising a memory, a processor and a computer program stored in the memory and operable on the processor, such as a pier size deviation detection program.
The steps of the bridge pier size deviation detection method are implemented when the processor executes the computer program, for example: performing three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
and building a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the bridge pier size deviation detection work.
Alternatively, the processor may implement functions of each module in the above system when executing the computer program, for example: the model building module is used for carrying out three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
the data processing module is used for establishing a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the detection work of the size deviation of the bridge pier.
The computer program may be divided into one or more modules/units, which are stored in the memory and executed by the processor to accomplish the present invention, for example. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program in the mobile terminal. For example, the computer program may be divided into a model building module and a data processing module, each module having the following specific functions:
the model building module is used for carrying out three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
the data processing module is used for establishing a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the detection work of the size deviation of the bridge pier.
The mobile terminal can be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server and the like. The mobile terminal may include, but is not limited to, a processor, memory.
The processor may be a central processing unit (CentralProcessingUnit, CPU), other general purpose processors, digital signal processors (DigitalSignalProcessor, DSP), application specific integrated circuits (ApplicationSpecificIntegratedCircuit, ASIC), off-the-shelf programmable gate arrays (Field-ProgrammableGateArray, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, which is a control center of the mobile terminal, connecting various parts of the entire mobile terminal using various interfaces and lines.
The memory may be used to store the computer program and/or module, and the processor may implement various functions of the mobile terminal by running or executing the computer program and/or module stored in the memory and invoking data stored in the memory.
The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart memory card (SmartMediaCard, SMC), secure digital (SecureDigital, SD) card, flash card (FlashCard), at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The present invention also provides a computer readable storage medium storing a computer program which when executed by a processor implements the steps of the bridge pier size deviation detection method.
The mobile terminal integrated modules/units may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as a stand alone product.
Based on such understanding, the present invention may implement all or part of the above-mentioned method, or may be implemented by instructing related hardware by a computer program, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of the bridge pier size deviation detecting method when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc.
The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a Read-only memory (ROM), a random access memory (RAM, randomAccessMemory), an electrical carrier signal, a telecommunication signal, a software distribution medium, and so forth.
It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (8)
1. The bridge pier size deviation detection method is characterized by comprising the following steps:
performing three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
and building a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the bridge pier size deviation detection work.
2. The bridge pier size deviation detection method according to claim 1, wherein the process of scanning the bridge pier to be scanned by the rear three-dimensional laser scanner to form the point cloud file is as follows:
setting scanner parameters, wherein the parameters comprise quality, resolution, color and scanning range;
and designing the scanning accuracy, the scanning time, the scanning sequence, the scanning path and the scanning times of the scanning instrument with the set parameters aiming at the characteristics of the pier to be scanned, starting to scan the pier to be scanned to obtain scanning data, returning to reset the parameters of the scanner when the scanning data does not meet the scanning requirement, and completing the scanning to form the point cloud file.
3. The bridge pier size deviation detecting method according to claim 1, wherein the processing of the point cloud file is as follows:
the point cloud file is imported into point cloud processing software for configuration, and then the point cloud file is preprocessed;
and pre-splicing the preprocessed point cloud files, judging whether the precision of the pre-spliced point cloud files meets the requirement, and when the precision of the pre-spliced point cloud files does not meet the requirement, adjusting splicing parameters to splice again, otherwise, finishing the cutting of the point cloud model, and outputting the point cloud model.
4. The bridge pier size deviation detection method according to claim 1, wherein the BIM model and the point cloud model are imported into data comparison software for fitting comparison, wherein test data in the point cloud model and reference data in the BIM model are aligned, 3D model comparison is carried out respectively, and the color spectrum is adjusted to be vertical, so that a size deviation report is generated.
5. The bridge pier size deviation detecting method according to claim 1, wherein the BIM model includes geometric information and non-geometric information, wherein the geometric information includes bridge pier type information, bridge pier name information, bridge pier size information, and bridge pier elevation information; the non-geometric information comprises pier material information, reinforcement protection layer thickness information, construction unit information and construction time information.
6. A pier dimensional deviation detection system, comprising:
the model building module is used for carrying out three-dimensional laser scanning on the pier to be scanned to form a point cloud file, and processing the point cloud file to obtain a point cloud model;
the data processing module is used for establishing a BIM model, carrying out fitting comparison on the BIM model and the point cloud model, generating and deriving a size deviation report, and completing the detection work of the size deviation of the bridge pier.
7. A mobile terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of a bridge pier size deviation detection method according to any one of claims 1 to 7.
8. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of a bridge pier size deviation detection method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310092659.3A CN116295002A (en) | 2023-02-09 | 2023-02-09 | Bridge pier size deviation detection method, system, terminal and storage medium thereof |
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| CN202310092659.3A CN116295002A (en) | 2023-02-09 | 2023-02-09 | Bridge pier size deviation detection method, system, terminal and storage medium thereof |
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| CN116295002A true CN116295002A (en) | 2023-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116894933A (en) * | 2023-09-08 | 2023-10-17 | 先临三维科技股份有限公司 | Three-dimensional model comparison method, device, equipment and storage medium |
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- 2023-02-09 CN CN202310092659.3A patent/CN116295002A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116894933A (en) * | 2023-09-08 | 2023-10-17 | 先临三维科技股份有限公司 | Three-dimensional model comparison method, device, equipment and storage medium |
| CN116894933B (en) * | 2023-09-08 | 2024-01-26 | 先临三维科技股份有限公司 | Three-dimensional model comparison method, device, equipment and storage medium |
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