CN113268790A - Automatic engineering drawing identification system and method - Google Patents
Automatic engineering drawing identification system and method Download PDFInfo
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- CN113268790A CN113268790A CN202110623363.0A CN202110623363A CN113268790A CN 113268790 A CN113268790 A CN 113268790A CN 202110623363 A CN202110623363 A CN 202110623363A CN 113268790 A CN113268790 A CN 113268790A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004458 analytical method Methods 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000010191 image analysis Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
Abstract
An automatic engineering drawing identification system comprises an arithmetic device, a drawing disassembling module and a drawing analysis module, wherein the drawing disassembling module is executed on the arithmetic device and disassembles an engineering drawing into a plurality of structural units which are classified according to at least one geometric characteristic; the picture analysis module is executed on the arithmetic device and analyzes the engineering drawing and the plurality of structural units to obtain a plurality of kinds of picture information corresponding to the engineering drawing. An automatic engineering drawing recognition method is also provided.
Description
Technical Field
The present invention relates to an identification system and method, and more particularly, to an automatic engineering drawing identification system and method.
Background
With the advancement of information technology, the processing of the traditional manufacturing industry is gradually changed from manual operation to computer control. Roughly speaking, whether the engineering drawing required for processing is a manual operation processing machine or a computer control, most of the engineering drawings at present need to be manually read to capture necessary key parameters and specific processing requirements.
In other words, most of the product engineering drawings are drawn by drawing software, wherein the product engineering drawings include information such as other processing requirements besides the product specifications. Before the drawn product engineering drawing is sent to a production workshop for production and manufacturing, a professional is usually required to analyze the picture information of the product engineering drawing, and further to summarize and retrieve numerous and complex information such as the structure information and the processing requirements of the product engineering drawing.
For example, a typical product engineering drawing usually includes hundreds of units of structural information and at least one additional processing requirement, which can be completed in hours or even days if the analysis is performed by a professional before the processing production. However, in a competitive era, the above-mentioned method has been unable to meet the demand of the upstream and downstream supply chains, so a novel product engineering drawing parsing system and method are urgently needed to solve the above-mentioned problem of time and labor consumption.
Disclosure of Invention
In view of the above, the present invention provides an automatic engineering drawing identification system and method, which can rapidly obtain various image information corresponding to an engineering drawing through an image analysis module capable of automatically analyzing the engineering drawing and a structural unit, thereby bringing more benefits to related industries.
An objective of the present invention is to provide an automatic engineering drawing identification system, which includes an arithmetic device, a picture disassembling module and a picture analyzing module. The image disassembling module is executed on the arithmetic device, disassembles an engineering drawing into a plurality of structural units and classifies the structural units according to at least one geometric characteristic; the picture analysis module is executed on the arithmetic device and analyzes the engineering drawing and the plurality of structural units so as to obtain a plurality of kinds of picture information corresponding to the engineering drawing.
Another objective of the present invention is to provide an automatic engineering drawing identification method, which comprises at least the following steps:
providing an arithmetic device, wherein the arithmetic device comprises a picture disassembling module and a picture analyzing module;
executing the picture disassembling module, disassembling an engineering drawing into a plurality of structural units, and classifying the structural units according to at least one geometric characteristic;
and executing the picture analysis module to analyze the engineering drawing and the structural units so as to obtain various picture information corresponding to the engineering drawing.
The invention has the advantages that the picture analysis module capable of automatically analyzing the engineering drawing and the structural unit can quickly obtain various picture information corresponding to the engineering drawing, thereby reducing time and labor consuming manual interpretation, improving the analysis efficiency of the engineering drawing and further bringing more help for related industries.
Drawings
FIG. 1 is a block diagram of an automatic engineering drawing identification system according to an embodiment of the invention.
FIG. 2 is a flowchart illustrating an automatic engineering drawing identification method according to an embodiment of the invention.
FIG. 3 is a decision diagram of an automatic engineering drawing identification method according to an embodiment of the invention.
FIG. 4 is a decision diagram of an automatic engineering drawing recognition method according to another embodiment of the present invention.
FIG. 5 is a decision diagram of an automatic engineering drawing identification method according to another embodiment of the present invention.
FIG. 6 is a decision diagram of an automatic engineering drawing identification method according to another embodiment of the present invention.
FIG. 7 is a decision diagram of an automatic engineering drawing identification method according to another embodiment of the present invention.
Detailed Description
The automatic engineering drawing identification system and method of the present invention will be described with reference to the embodiments of the present invention and the accompanying drawings, which are provided to illustrate the spirit of the present invention and to make it easier to understand, and are not intended to limit the scope of the present invention.
Referring to fig. 1, an embodiment of the invention provides an automatic engineering drawing identification system 100, which includes a computing device 110, a picture disassembling module 120, and a picture analyzing module 130. The image disassembling module 120 is executed on the computing device 110, and an engineering drawing ED is input into the computing device 110. The image disassembling module 120 disassembles the engineering drawing ED into a plurality of structural units (not shown), and classifies the structural units according to at least one geometric feature.
In the embodiment of the present invention, the plurality of structural units include basic line patterns presented by the engineering drawing ED, such as a vertical line, a horizontal line, an arc line, a circle, or a combination thereof, but not limited thereto, and all basic line patterns are not exhaustive. In an embodiment of the invention, the at least one geometric feature includes the basic line pattern, and the plurality of structural units are classified according to the basic line pattern, for example, a vertical line on the engineering drawing ED is classified into a first class, a horizontal line on the engineering drawing ED is classified into a second class, an arc line on the engineering drawing ED is classified into a third class, and/or a circle on the engineering drawing ED is classified into a fourth class, but not limited thereto.
In the embodiment of the invention, the plurality of structural units are further grouped according to functionality and purpose in addition to being classified according to the basic line patterns. For example, the structural units are pre-classified according to the positions of the drawing frames; the plurality of structural units are added into a group of a top view, a side view, a partially enlarged view or a combination thereof. For example, to find the arcs with starting angles greater than 180 degrees, all arcs must be inspected one by one and added to a new group. By grouping according to the functionality, the accuracy of automatic image reading can be improved and the error probability of the program can be reduced.
In fig. 1, the picture analysis module 130 is executed on the computing device 110, and the picture analysis module 130 analyzes the engineering drawing ED and the structural units to obtain a plurality of picture information DI corresponding to the engineering drawing ED. In the embodiment of the present invention, the image analysis module 130 is in signal connection with the image disassembling module 120, so that the plurality of structural units disassembled by the image disassembling module 120 can be directly transmitted to the image analysis module 130 and directly analyzed, thereby simplifying the information transmission process and improving the data analysis efficiency.
In the embodiment of the present invention, the picture analysis module 130 includes a top view, a side view, at least one enlarged partial view, at least one text, at least one symbol, at least one numerical value, or a combination thereof for recognizing the engineering drawing ED. In an embodiment of the present invention, the picture analysis module 130 obtains the picture information DI corresponding to the engineering drawing ED, which includes a plurality of workpiece structural features, at least one processing requirement, or a combination thereof, wherein the workpiece structural features include a workpiece top view, a workpiece side view, at least one enlarged partial view, at least one text, at least one symbol, at least one numerical value, or a combination thereof of the engineering drawing. In the embodiment of the present invention, the image analysis module 130 compares at least one common parameter of the top view and the side view to determine whether the common parameter is consistent and whether the top view and the side view have an equal-scale condition; for example, when the outer diameter of the workpiece is taken as the common parameter, the outer diameter of the workpiece top view and the workpiece side view analyzed by the graph analysis module 130 should be consistent, and the outer diameter value marked in the engineering drawing ED can be converted into a multiple of the top view and the side view which are magnified in equal scale.
For example, the engineering drawing ED shows a top view of a workpiece, a side view of the workpiece, at least one enlarged partial area, at least one text, at least one symbol, at least one numerical value, or a combination thereof, and the picture analysis module 130 distinguishes that each block on the engineering drawing ED represents a type of the structural feature of the workpiece by identifying the structural feature of the top view, the side view, the enlarged partial area, the text, the symbol, the number, or a combination thereof.
Referring to fig. 1 and fig. 2 together, an automatic engineering drawing identification method at least includes the following steps:
step S01, providing the computing device 110, wherein the computing device 110 includes the picture disassembling module 120 and the picture analyzing module 130;
step S02, executing the image disassembling module 120 to disassemble the engineering drawing ED into a plurality of structural units (not shown), and classifying the structural units according to at least one geometric feature;
step S03, the image analysis module 130 is executed to analyze the engineering drawing ED and the structural units to obtain a plurality of image information DI corresponding to the engineering drawing ED.
In an embodiment of the present invention, analyzing the engineering drawing and the plurality of structural units includes identifying a top view block in the engineering drawing ED, identifying a side view block in the engineering drawing ED, and identifying a type of article or a type of workpiece in the engineering drawing ED.
Next, a determination method of the top view block in the engineering drawing ED is described as an embodiment of the present invention. As shown in fig. 3, when the engineering drawing ED is a mold engineering drawing for manufacturing an optical assembly or an engineering drawing of an optical lens, the top view of the mold engineering drawing or the engineering drawing of the optical lens has a top view center, and the top view center is a block of the most circles on the engineering drawing. In other embodiments of the present invention, the block with the largest arc center on the engineering drawing can also be found. In other embodiments of the present invention, if there is no complete circle in the block at the center of the maximum arc, it is determined that the block is not the top view, and further, the blocks that can form the complete circle and have the second most center of the arc are identified.
It should be noted that identifying the top view block in the engineering drawing ED may further include determining an outer diameter of the mold core, determining an aperture of the aspheric surface, determining a magnification, determining whether a D-cut is present, determining whether a gate is present, determining whether a runner is present, determining whether a pin is present, determining an exhaust design, or a combination thereof. Wherein, determining whether the gate exists further comprises determining the number, size and/or position of the gates; judging whether the flow channel exists or not further comprises judging the number, the size and/or the position of the flow channel; the determining whether the thimble exists may further include determining the number, size, and/or position of the thimbles.
Next, another embodiment of the present invention is described as to the judgment method of the side view block in the engineering drawing ED. As shown in fig. 4, when the engineering drawing ED is the mold-core engineering drawing for manufacturing the optical assembly, the mold-core engineering drawing has a mold-core side view, and the block of the mold-core side view has lines in various directions, such as a plurality of vertical lines, a plurality of horizontal lines, at least one arc line, at least one curve or a combination thereof, and the lines may be connected to form a closed pattern, and the closed pattern is the mold-core side view, but not limited thereto.
It should be noted that, the identification of the side view block in the engineering drawing ED can also be determined by the position of the side view block in the engineering drawing ED, for example, the side view block is usually adjacent to the top view block, so that the side view block in the engineering drawing ED can be identified by determining whether the blocks located above, below, left, and right of the top view block are closed patterns formed by a plurality of vertical lines and a plurality of horizontal lines, but not limited thereto.
In addition, the positions and related information of the top view block and the side view block in the engineering drawing ED can also be determined by comparing the outer diameters of the workpiece in the top view and the workpiece in the side view in the engineering drawing ED, but not limited thereto.
Next, a method for determining the type of the workpiece in the engineering drawing ED will be described as another embodiment of the present invention. As shown in fig. 5, when the engineering drawing ED is the engineering drawing for manufacturing the mold core of the optical assembly or the engineering drawing of the optical lens, the type of the workpiece can be determined according to at least one structural feature of the top view block, the side view block or the combination thereof in the engineering drawing ED. In an embodiment of the invention, the workpiece type may be, for example, a type of a mold for manufacturing an optical assembly, including a core insert, a spacer core, a lens core, or a combination thereof. In the embodiment of the invention, the mold insert is a mold insert for manufacturing a lens insert or a lens housing.
In an embodiment of the present invention, it is determined whether the workpiece type is a core insert according to whether the number of concentric circles of the top view block in the engineering drawing ED is greater than a default value, as shown in fig. 5; in this embodiment, when the workpiece type is a core insert, the top view block in the engineering drawing ED has a plurality of concentric circles, so that the number of the concentric circles can be used as a basis for determining whether the workpiece type is the core insert. In another embodiment of the present invention, it is determined whether the workpiece type is a core insert according to whether the total number of the arc lines and the cloud lines of the top view block in the engineering drawing ED is smaller than a predetermined value, as shown in fig. 6; the determination manners of the example in fig. 6 and the example in fig. 5 are complementary to each other, when the workpiece type is a core insert, the top view block in the engineering drawing ED has a plurality of concentric circles, so that when the number of concentric circles is large, the total number of the arc lines and the cloud lines is reduced, even the arc lines and the cloud lines are absent, and thus the example in fig. 6 can determine whether the workpiece type is the core insert according to the total number of the arc lines and the cloud lines. In another embodiment of the present invention, it is determined whether the workpiece type is a core insert according to whether the number of the steps of the side view blocks in the engineering drawing ED is greater than a predetermined value, as shown in fig. 7; in this embodiment, when the workpiece type is a core insert, the side view blocks in the engineering drawing ED have a multi-step stepped structure, so that the number of the steps in the side view can be used as a basis for determining whether the workpiece type is the core insert.
In fig. 5 to 7, whether the workpiece type is a spacer mold core or a lens mold core is determined according to whether the top edge center area in the side view block or the partially enlarged side view block in the engineering drawing ED has a cloud line. In embodiments of the present invention, a cloud line refers to a smooth curve passing through or near a series of designated points.
In fig. 5 to 7, it is determined whether the side view block in the engineering drawing ED includes a complete two-sided feature of the optical lens, that is, the side view block in the engineering drawing ED can be distinguished into two complete single-sided features, each single-sided feature includes an empty step, a bearing surface, a lens area, or a combination thereof, which should be included in the optical lens. If the side view block in the engineering drawing ED includes complete two-sided features of the optical lens, it can be determined that the engineering drawing ED is an optical lens engineering drawing. In the present embodiment, when the engineering drawing ED is an optical lens engineering drawing, the lens area of the optical lens engineering drawing is represented by a cloud line, an arc or a combination thereof, but not limited thereto.
Through the embodiment of the invention, the picture analysis module can automatically analyze the engineering drawing and the structural unit so as to quickly acquire various picture information corresponding to the engineering drawing, so that time and labor consuming manual interpretation can be reduced, the analysis efficiency of the engineering drawing is improved, and more help is brought to related industries.
Description of the reference numerals
100: automatic engineering drawing identification system
110: arithmetic device
120: picture disassembling module
130: picture analysis module
ED: engineering drawing
DI: picture information
S01, S02, S03: and (5) carrying out the following steps.
Claims (10)
1. An automatic engineering drawing identification system comprises:
an arithmetic device;
the picture disassembling module is executed on the arithmetic device and is used for disassembling an engineering drawing into a plurality of structural units and classifying the structural units according to at least one geometric characteristic; and
and the picture analysis module is executed on the computing device and analyzes the engineering drawing and the structural units so as to obtain various picture information corresponding to the engineering drawing.
2. The automatic engineering drawing identification system of claim 1, wherein the picture analysis module comprises identifying a top view, a side view, at least one enlarged partial view, at least one text, at least one symbol, at least one numerical value, or a combination thereof of the engineering drawing.
3. The system of claim 1, wherein the plurality of types of picture information comprise a plurality of workpiece structural features, at least one processing requirement, or a combination thereof.
4. The system of claim 3, wherein the plurality of workpiece features comprises a workpiece top view, a workpiece side view, a workpiece type, at least one enlarged partial view, at least one text, at least one symbol, at least one numerical value, or a combination thereof.
5. The automatic engineering drawing identification system as claimed in claim 1, wherein the picture analysis module is signal connected to the picture disassembling module.
6. An automatic engineering drawing identification method comprises the following steps:
providing an arithmetic device, wherein the arithmetic device comprises a picture disassembling module and a picture analyzing module;
executing the picture disassembling module, disassembling an engineering drawing into a plurality of structural units, and classifying the structural units according to at least one geometric characteristic;
and executing the picture analysis module to analyze the engineering drawing and the structural units so as to obtain various picture information corresponding to the engineering drawing.
7. The automatic identification method of engineering drawing as claimed in claim 6, wherein analyzing the engineering drawing and the plurality of structural units comprises:
identifying top view blocks in the engineering drawing;
identifying a side view block in the engineering drawing; and
and identifying the workpiece type in the engineering drawing.
8. The automatic identification method of engineering drawing as claimed in claim 7, wherein identifying the top view block in the engineering drawing includes determining a top view center position.
9. The method of claim 7, wherein identifying the block in the engineering drawing comprises determining a closed pattern in the engineering drawing comprising a plurality of vertical lines, a plurality of horizontal lines, at least one arc line, at least one curve line, or a combination thereof.
10. The method of claim 7, wherein identifying the type of workpiece in the engineering drawing is determined by at least one structural feature of the top view block, the side view block, or a combination thereof.
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| CN202110623363.0A CN113268790A (en) | 2021-06-04 | 2021-06-04 | Automatic engineering drawing identification system and method |
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| CN202110623363.0A CN113268790A (en) | 2021-06-04 | 2021-06-04 | Automatic engineering drawing identification system and method |
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