CN112550631A - Ship pre-outfitting installation method, system and equipment based on optical projection - Google Patents

Ship pre-outfitting installation method, system and equipment based on optical projection Download PDF

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Publication number
CN112550631A
CN112550631A CN202011449481.6A CN202011449481A CN112550631A CN 112550631 A CN112550631 A CN 112550631A CN 202011449481 A CN202011449481 A CN 202011449481A CN 112550631 A CN112550631 A CN 112550631A
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China
Prior art keywords
outfitting
installation
projection
optical projection
result
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CN202011449481.6A
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Chinese (zh)
Inventor
林鸥
杨骏
朱明华
单小芬
张红伟
王杰
周泽麟
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Jiangnan Shipyard Group Co Ltd
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Jiangnan Shipyard Group Co Ltd
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Priority to CN202011449481.6A priority Critical patent/CN112550631A/en
Publication of CN112550631A publication Critical patent/CN112550631A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/60Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Robotics (AREA)
  • Projection Apparatus (AREA)
  • Processing Or Creating Images (AREA)

Abstract

The invention provides a ship pre-outfitting installation method, a system and equipment based on optical projection, wherein a three-dimensional process model is designed based on ship production, process information required by pre-outfitting installation is output, an installation projection task package is generated, and accurate projection is realized on the installation process information by using an optical projector on the basis for actual installation assistance of pre-outfitting; the image recognition technology is adopted to monitor the positioning condition, so that the positioning error in the assembly process can be found in time, the defects caused by post inspection in the traditional business process can be effectively reduced, and meanwhile, the error caused by manual inspection can be avoided.

Description

Ship pre-outfitting installation method, system and equipment based on optical projection
Technical Field
The invention relates to the field of ship construction, in particular to a ship pre-outfitting installation method, a system and equipment based on optical projection.
Background
The pre-outfitting is a method for fitting out in advance from the conventional outfitting operation in a wharf and a ship to the stage before a subsection and a main section are loaded on a ship platform, and the method plays an important role in improving the outfitting quality, improving the labor condition, realizing safe production, and reducing the working hour and material consumption. The installation position needs to be accurately positioned before the ship pre-outfitting piece is installed, and the positioning quality and efficiency determine the installation precision and efficiency. The current mode is that a constructor manually draws a positioning point on a supporting structure (such as a bulkhead), and the positioning precision is seriously influenced by factors such as the proficiency and the operating state of the constructor, so that the error caused by the factors is not negligible.
On the other hand, after the installation is finished, the installation and inspection work is required to verify whether all the structural components are installed in place or not and whether the phenomena of misassembly and neglected assembly exist or not. The inspection work under the current installation mode is manual visual inspection, the inspection efficiency is low, and meanwhile, the manual operation can inevitably generate errors. The reason seriously restricts the installation efficiency of the pre-outfitting piece, and how to solve the problem of low efficiency is a difficult problem which is currently left in the front of ship process designers.
Disclosure of Invention
In view of the above disadvantages of the prior art, the technical problem to be solved by the present invention is to provide a ship pre-outfitting installation method, system and apparatus based on optical projection, which solves the problems of installation quality, installation efficiency and inspection efficiency in the existing construction mode based on the three-dimensional model of shipyard production design and the optical projection technology.
In order to achieve the above and other related objects, the present invention provides a ship pre-outfitting installation method based on optical projection, including the following steps:
s1, acquiring the number of the pre-outfitting tray;
s2, obtaining a pre-outfitting three-dimensional model;
s3, extracting technical information of the pre-outfitting piece;
s4, generating a projection task package of the pre-outfitting installation procedure;
s5, selecting one or more reference positions as projection reference positioning points;
s6, based on the projection task package, directly projecting the installation process information of the pre-outfitting piece onto the installation reference surface of the actual part by using an optical projector, ensuring accurate projection, and carrying out installation operation on the basis;
s7, acquiring a pre-outfitting installation result graph by using an image acquisition device, and comparing the pre-outfitting installation result graph with the three-dimensional model graph;
and S8, obtaining an installation result according to the comparison result.
Preferably, step S7 further includes:
s71, collecting a pre-outfitting installation result graph, wherein the collection mode comprises the following steps: collecting in real time, collecting after receiving a command, and collecting according to a set time interval;
s72, processing the pre-outfitting installation result graph and the three-dimensional model, and extracting key information including the outline and the position of the part;
and S73, selecting a reasonable comparison algorithm, comparing the installation result with the three-dimensional model, verifying the integrity and accuracy of the installation result, and verifying the judgment basis of the integrity and accuracy, wherein the judgment basis comprises the contour consistency, the position consistency and the part number consistency of the installation result and the three-dimensional model.
Preferably, the outfitting in step S2 includes piping, air ducts, electrical, exterior outfitting, interior outfitting.
Preferably, the part process information in step S3 includes part number, weight, material, specification, mounting position, outer contour.
Preferably, the projection task package content in step S4 is an installation order of all outfitting parts that need to be installed this time.
Preferably, the projection task package in step S4 is generated according to the process information of the outfitting and by combining the corresponding principles, where the principles include a spatial position principle, a size principle, a weight principle, and an installation requirement.
Preferably, the reference position in step S5 includes: any one or more combinations of the existing openings, boundaries and angular points on the installation reference surface.
Preferably, the reference position in step S5 further includes an external reference positioning tool.
The invention also provides a ship pre-outfitting installation system based on optical projection, which comprises:
the pre-outfitting tray information input module is used for acquiring the mark number of a pre-outfitting tray to be installed;
the three-dimensional process model acquisition module is used for acquiring a corresponding three-dimensional process model according to the pre-outfitting tray label;
the projection process model processing module is used for extracting a process model required by pre-outfitting installation and generating an installation procedure projection task package;
the projection positioning module is used for selecting one or more reference positions of the part as projection reference positioning, directly projecting the process information of the part to be assembled onto an installation reference surface of the actual part, and carrying out installation operation by constructors on the basis;
the image acquisition module is used for acquiring an image of the installed pre-outfitting;
the image processing module is used for processing the installed pre-outfitting image and the three-dimensional model and extracting key information;
and the inspection and comparison module is used for comparing the pre-outfitting installation result with the three-dimensional model and obtaining an assembly quality result according to the comparison result.
The present invention also provides a computer device comprising:
a memory on which a computer program is stored;
a processor for executing a computer program stored in a memory, the program, when executed by the processor, implementing the above-mentioned optical projection-based ship pre-outfitting installation method;
a communicator for communicatively connecting an external device;
the optical projector is used for directly projecting the process information of the parts to be assembled onto the installation reference surface of the actual part;
and the image acquisition equipment is used for acquiring a complete image of the actually assembled part.
As described above, the ship outfitting installation method, system and equipment based on optical projection according to the present invention have the following advantages:
firstly, the assembly process is driven through a three-dimensional model, data transmission from a design end to a manufacturing end is opened, data release is simplified, design construction efficiency is improved, and an equipment isolated island is effectively avoided;
secondly, the traditional scribing positioning procedure is replaced by optical projection positioning, so that the assembling quality and efficiency are obviously improved;
and thirdly, the image recognition technology is adopted to monitor the positioning condition, so that the positioning error in the assembly process can be found in time, the defects caused by post inspection in the traditional business process can be effectively reduced, and meanwhile, the error caused by manual inspection can be avoided.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of the present invention;
FIG. 2 is a flow diagram illustrating an assembly verification process according to an embodiment of the present invention;
FIG. 3 is a block diagram of a system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Description of reference numerals:
201 pre-outfitting tray information input module 201;
202 a three-dimensional process model obtaining module 202;
203 projection process model processing module 203;
204 projection positioning module 204;
205 an image acquisition module 205;
206 an image processing module 206;
207 a test comparison module 207;
301 a memory 301;
302 a processor 302;
303 a communicator 303;
304 an optical projector 304;
305 an image acquisition device 305.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or through an intermediate medium, or both elements may be interconnected. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 4, the present invention provides a ship pre-outfitting installation method based on optical projection, as shown in fig. 1 to 2, the method includes:
s1, acquiring the number of the pre-outfitting tray:
the method for acquiring the outfitting tray number comprises the steps of scanning an identification code attached to the outfitting tray, and manually acquiring a tray number written on the tray;
s2, obtaining a pre-outfitting three-dimensional model:
obtaining a corresponding three-dimensional model from a model database according to the tray number, wherein the pre-outfitting comprises a piping system, an air pipe, an electric system, an external outfitting and an internal outfitting;
s3, extracting process information of the pre-outfitting piece:
the part process information comprises part number, weight, material, specification, installation position and external profile;
s4, generating a projection task package of the pre-outfitting installation procedure:
projecting the task package content into the installation sequence of all pre-outfitting pieces needing to be installed at this time;
the projection task package is generated according to the process information of the pre-outfitting piece and by combining corresponding principles, wherein the principles comprise a spatial position principle, a size principle, a weight principle and installation requirements;
s5, selecting one or more reference positions as projection reference positioning points;
the reference position comprises any one or more combinations of an opening, a boundary and an angular point on the installation reference surface;
the reference position also comprises an external reference positioning tool;
s6, based on the projection task package, directly projecting the installation process information of the pre-outfitting piece onto the installation reference surface of the actual part by using an optical projector, ensuring accurate projection, and carrying out installation operation on the basis;
s7, acquiring a pre-outfitting installation result graph by using an image acquisition device, and comparing the pre-outfitting installation result graph with the three-dimensional model graph;
s71, collecting a pre-outfitting installation result graph, wherein the collection mode comprises the following steps: collecting in real time, collecting after receiving a command, and collecting according to a certain time interval;
s72, processing the pre-outfitting installation result graph and the three-dimensional model, and extracting key information including the outline and the position of the part;
s73, selecting a reasonable comparison algorithm, comparing the installation result with the three-dimensional model, and verifying the integrity and accuracy of the installation result;
the judgment basis for verifying the integrity and the accuracy comprises the installation result, the contour consistency, the position consistency and the part number consistency of the three-dimensional model;
and S8, obtaining an installation result according to the comparison result.
The installation result includes: correct installation and wrong installation, wherein the wrong installation comprises missing parts and misloading parts.
And when the actual assembly result is not different from the three-dimensional model or the difference is small, the production requirement is considered to be met, the assembly is correct, if the contrast finds that the key information is missing, the part is considered to be missing and needs to be supplemented, and if the contrast finds that the key information is inconsistent, the part is considered to be wrongly assembled and needs to be re-assembled.
The assembly quality result can be displayed in the forms of characters, sound, light and the like.
The embodiment of the invention provides a ship pre-outfitting installation system based on optical projection, which is applied to a ship pre-outfitting installation method based on optical projection, and the system is shown in fig. 3 and comprises the following steps:
a pre-outfitting tray information input module 201, configured to acquire a pre-outfitting tray label to be installed;
the three-dimensional process model obtaining module 202 is used for obtaining a corresponding three-dimensional process model according to the pre-outfitting tray label;
the projection process model processing module 203 is used for extracting a process model required by pre-outfitting installation and generating an installation procedure projection task package;
the projection positioning module 204 is used for selecting one or more reference positions of the part as projection reference positioning, directly projecting the process information of the part to be assembled onto an installation reference surface of the actual part, and carrying out installation operation by constructors on the basis;
an image obtaining module 205, configured to obtain an installed pre-outfitting image;
the image processing module 206 is configured to process the installed pre-outfitting image and the three-dimensional model, and extract key information;
and the checking and comparing module 207 is used for comparing the pre-outfitting installation result with the three-dimensional model and obtaining an assembly quality result according to the comparison result.
An embodiment of the present invention further provides a computer device, including:
a memory 301 on which a computer program is stored;
a processor 302 for executing a memory-stored computer program which, when executed by the processor, implements the optical projection-based ship pre-outfitting installation method as described above;
a communicator 303 for communicatively connecting an external device;
the optical projector 304 is used for directly projecting the process information of the parts to be assembled onto the installation reference surface of the actual part;
and the image acquisition device 305 is used for acquiring a complete image of the actually assembled parts.
In summary, according to the ship pre-outfitting installation method, system and equipment based on optical projection, the three-dimensional process model is designed based on ship production, the process information required by pre-outfitting installation is output, the installation projection task package is generated, and on the basis, the optical projector is used for accurately projecting the installation process information for assisting the actual installation of the pre-outfitting. And acquiring an image of the installed pre-outfitting by using an image acquisition device, analyzing and comparing the three-dimensional model and the actual press sample image based on a reasonable comparison algorithm, and performing installation and inspection.
The invention has the advantages that: the three-dimensional model drives the assembly process, data transmission from a design end to a manufacturing end is opened, data release is simplified, design construction efficiency is improved, and an equipment isolated island is effectively avoided; the traditional marking and positioning process is replaced by optical projection positioning, so that the assembly quality and efficiency are obviously improved; the image recognition technology is adopted to monitor the positioning condition, so that the positioning error in the assembly process can be found in time, the defects caused by post inspection in the traditional business process can be effectively reduced, and meanwhile, the error caused by manual inspection can be avoided.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. The ship pre-outfitting installation method based on optical projection is characterized by comprising the following steps:
s1, acquiring the number of the pre-outfitting tray;
s2, obtaining a pre-outfitting three-dimensional model;
s3, extracting technical information of the pre-outfitting piece;
s4, generating a projection task package of the pre-outfitting installation procedure;
s5, selecting one or more reference positions as projection reference positioning points;
s6, based on the projection task package, directly projecting the installation process information of the pre-outfitting piece onto the installation reference surface of the actual part by using an optical projector, ensuring accurate projection, and carrying out installation operation on the basis;
s7, acquiring a pre-outfitting installation result graph by using an image acquisition device, and comparing the pre-outfitting installation result graph with the three-dimensional model graph;
and S8, obtaining an installation result according to the comparison result.
2. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein the step S7 further comprises:
s71, collecting a pre-outfitting installation result graph, wherein the collection mode comprises the following steps: collecting in real time, collecting after receiving a command, and collecting according to a set time interval;
s72, processing the pre-outfitting installation result graph and the three-dimensional model, and extracting key information including the outline and the position of the part;
and S73, selecting a reasonable comparison algorithm, comparing the installation result with the three-dimensional model, verifying the integrity and accuracy of the installation result, and verifying the judgment basis of the integrity and accuracy, wherein the judgment basis comprises the contour consistency, the position consistency and the part number consistency of the installation result and the three-dimensional model.
3. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein: the pre-outfitting in the step S2 comprises a pipe system, an air pipe, an electric device, an external outfitting and an internal outfitting.
4. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein: the part process information in step S3 includes part number, weight, material, specification, mounting position, and outer contour.
5. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein: the projection task package content in step S4 is the installation sequence of all pre-outfitting parts that need to be installed this time.
6. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein: the projection task package in the step S4 is generated according to the process information of the outfitting and by combining with the corresponding principle, where the principle includes a spatial position principle, a size principle, a weight principle, and an installation requirement.
7. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein the reference position in step S5 comprises: any one or more combinations of the existing openings, boundaries and angular points on the installation reference surface.
8. The optical projection-based ship pre-outfitting installation method as claimed in claim 1, wherein the reference position in step S5 further comprises an external reference positioning tool.
9. An optical projection-based ship pre-outfitting installation system, comprising:
the pre-outfitting tray information input module is used for acquiring the mark number of a pre-outfitting tray to be installed;
the three-dimensional process model acquisition module is used for acquiring a corresponding three-dimensional process model according to the pre-outfitting tray label;
the projection process model processing module is used for extracting a process model required by pre-outfitting installation and generating an installation procedure projection task package;
the projection positioning module is used for selecting one or more reference positions of the part as projection reference positioning, directly projecting the process information of the part to be assembled onto an installation reference surface of the actual part, and carrying out installation operation by constructors on the basis;
the image acquisition module is used for acquiring an image of the installed pre-outfitting;
the image processing module is used for processing the installed pre-outfitting image and the three-dimensional model and extracting key information;
and the inspection and comparison module is used for comparing the pre-outfitting installation result with the three-dimensional model and obtaining an assembly quality result according to the comparison result.
10. A computer device, comprising:
a memory on which a computer program is stored;
a processor for executing a memory-stored computer program which, when executed by the processor, implements the optical projection-based ship pre-outfitting installation method of any one of claims 1 to 8;
a communicator for communicatively connecting an external device;
the optical projector is used for directly projecting the process information of the parts to be assembled onto the installation reference surface of the actual part;
and the image acquisition equipment is used for acquiring a complete image of the actually assembled part.
CN202011449481.6A 2020-12-09 2020-12-09 Ship pre-outfitting installation method, system and equipment based on optical projection Pending CN112550631A (en)

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CN113808284A (en) * 2021-09-24 2021-12-17 江南造船(集团)有限责任公司 Ship pre-outfitting material arranging method and device based on augmented reality
CN113815804A (en) * 2021-09-01 2021-12-21 上海外高桥造船有限公司 Outfitting installation sequence intelligent design method
CN115161777A (en) * 2022-07-08 2022-10-11 邢台晶龙新能源有限责任公司 Crystal furnace component installation auxiliary equipment and method for installing crystal furnace component

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CN115161777A (en) * 2022-07-08 2022-10-11 邢台晶龙新能源有限责任公司 Crystal furnace component installation auxiliary equipment and method for installing crystal furnace component

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