CN107895515A - The CAD teaching methods and tutoring system of a kind of augmented reality - Google Patents
The CAD teaching methods and tutoring system of a kind of augmented reality Download PDFInfo
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- CN107895515A CN107895515A CN201711387717.6A CN201711387717A CN107895515A CN 107895515 A CN107895515 A CN 107895515A CN 201711387717 A CN201711387717 A CN 201711387717A CN 107895515 A CN107895515 A CN 107895515A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
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Abstract
The present invention relates to tutoring system technical field, more specifically, it is related to the CAD teaching methods and tutoring system of a kind of augmented reality, teaching method in 3D softwares mainly by by establishing threedimensional model, and its three-dimensional model and illustraton of model, three-view diagram are imported in Three-dimensional Animation Software, in classroom, two dimensional image collection is carried out by video camera, it is identified by Three-dimensional Animation Software, export three-dimensional stereo model file is simultaneously shown, and display pattern can be changed to be shown, three-dimensional stereo model from going from multiple angles.Tutoring system includes dais main body and the computer and display that are installed in the main body of dais, and video camera, gesture sensor and the projecting apparatus with calculating mechatronics are provided with the main body of dais.It is shown in the form of augmented reality, also gesture can be used to carry out real-time interactive, realize the conversion between two dimensional image and threedimensional model on classroom, contribute to student's fast construction threedimensional model comprehensive architecture, auxiliary student builds 3D thinkings.
Description
Technical field
The present invention relates to tutoring system technical field, more particularly, to a kind of CAD teaching methods of augmented reality and religion
System.
Background technology
Current universities many at home and abroad, professional colleges major part Engineering Speciality all open up the related courses of CAD, CAD classes
It is exactly to allow student to grasp necessary knowwhy in limited instructional blocks of time, association understands figure, painted the main mesh of hall teaching
Make the 3D illustratons of model of different requirements and its cut away view of Different Plane.At present most schools be all using multimedia platform and
CAD software is imparted knowledge to students, but the teaching of most of multimedia platform lacks complete building process for being abstracted the content of part, learns
Raw cognition sense organ can only be stuck on two dimensional surface.Threedimensional model in CAD also has 3D entity effects, but substantially it shows
Out be a plane, student can not be simultaneously from the architectural feature of multiple angle observing and nursings, so that student for
The content understanding of abstract part is not deep enough.
Augmented reality（Augmented Reality, abbreviation AR）, it is a kind of calculating camera image in real time
Position and angle simultaneously add respective image, video, the technology of 3D models, and the target of this technology is virtual world on screen
It is enclosed on real world and carries out interaction.If can apply in CAD classroom instructions, student's fast understanding two dimension view can be effectively helped
Conversion between threedimensional model, although AR technologies are increasingly ripe, because its technical costs is higher, the technology does not have also at this stage
Really come into classroom instruction.
The content of the invention
The present invention is to overcome at least one defect described in above-mentioned prior art, there is provided a kind of CAD teaching of augmented reality
Method and tutoring system, by the conversion between model three-view diagram and three-dimensional stereo model, realize that enhancing is existing with relatively low cost
Real teaching method, to aid in the good space imagination of students developing.
In order to solve the above technical problems, present invention employs following technical scheme：
A kind of CAD teaching methods of augmented reality, comprise the following steps：
S1：Three-dimensional stereo model file is established using 3D softwares, exports and preserves its three-dimensional entity model figure and three-view diagram, by institute
State three-dimensional stereo model file and its illustraton of model, three-view diagram import Three-dimensional Animation Software；
S2：Classroom teaching, by camera acquisition three-dimensional stereo model figure and three-view diagram image and import the three-dimensional animation
Software, image recognition is carried out by the Three-dimensional Animation Software, and extract corresponding three-dimensional three-dimensional model file；
S3：The display pattern of threedimensional model is configured, Three-dimensional Animation Software leads the three-dimensional stereo model file extracted
Go out and shown in real time according to the display pattern of setting.
Its three-dimensional model and illustraton of model, three-view diagram are imported three by the present invention by establishing threedimensional model in 3D softwares
Tie up in animation software, in classroom, two dimensional image collection is carried out by video camera, is identified by Three-dimensional Animation Software, is exported
Three-dimensional stereo model file is simultaneously shown, and can be changed display pattern and be shown, three-dimensional vertical from being gone from multiple angles
Body Model.The present invention realizes the conversion between two dimensional image and threedimensional model on classroom, contributes to student's fast construction three-dimensional
Model comprehensive architecture, auxiliary student build 3D thinkings.
Further, the illustraton of model and three-view diagram imported in step S1 in Three-dimensional Animation Software is jpeg format.Three-dimensional is dynamic
Draw software and extraction three-dimensional stereo model is identified by two dimensional image, it is therefore desirable to import the file of graphic form in the lump, work as identification
When the image of camera collection is consistent with picture file, then corresponding three-dimensional three-dimensional model file is extracted.
Further, the display pattern of three-dimensional stereo model file includes display view, dispaly state, display in step S3
Angle and displaying ratio.Show that view includes three-dimensional view, three-view diagram, profile, partial schematic diagram etc., dispaly state includes dynamic
State is shown and static state display.
Further, 3D softwares are AutoCAD softwares；Three-dimensional Animation Software is unity software.
Present invention also offers a kind of CAD tutoring systems of augmented reality, the CAD teaching sides based on above-mentioned augmented reality
Method, including dais main body and the computer, display and the microphone that are installed in the main body of dais, it is provided with the main body of dais and is used for
Video camera, gesture sensor and the projecting apparatus of image collection, video camera, gesture sensor and projecting apparatus calculate electromechanics with described
Connection.
The present invention in the main body of dais by installing video camera, gesture sensor and projecting apparatus, and with calculating mechatronics,
Camera acquisition two dimensional image inputs computer, is identified by unity software in computer, and unity software extracts pair
After the three-dimensional stereo model file answered, three-dimensional stereo model show by projecting apparatus, user can be passed by gesture
Sensor or computer display interface carry out the adjustment of display pattern to three-dimensional stereo model.
Further, in addition to the exhibition booth that is movably installed in the dais main body, exhibition booth can pass through stretch it is embedded or convex
For dais main body, video camera is installed on exhibition booth.When carrying out IMAQ, two dimensional image is positioned on exhibition booth, imaged
Machine carries out IMAQ towards imaging surface, when carrying out threedimensional model displaying without using CAD tutoring systems, can take in exhibition booth
In the main body of dais.
Further, in addition to the function button and control circuit that are arranged in the main body of dais, control circuit are pressed with function
Key, exhibition booth, video camera, projecting apparatus and computer are electrically connected, and function button is opened the switch of projecting apparatus and display, video camera
Stop, the stretching of exhibition booth is controlled.
Preferably, gesture sensor is Leap Motion gesture sensors.
Preferably, display is touch display screen, and touch display screen is rotatably mounted in the main body of dais.Touch display
Screen can be in the main body of dais with 135 ° of rotations, when not in use can be with screen rotation to screen down, to play protection screen
Effect.
Compared with prior art, beneficial effect is：By identifying two dimensional image, corresponding three-dimensional stereo model is extracted,
And shown in the form of 3-D cartoon, be advantageous to student and build three-dimensional thinking；3 D stereo is set by gesture sensor
The display pattern of model, real-time interactive can be realized, more intuitively three-dimensionally show threedimensional model.
Brief description of the drawings
Fig. 1 is the structural representation of the CAD tutoring systems of augmented reality in one embodiment of the invention.
Fig. 2 is the flow chart of the CAD teaching methods of augmented reality in one embodiment of the invention.
Fig. 3 is the setting interface of three-dimensional stereo model display pattern in one embodiment of the invention.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.Being given for example only property of position relationship described in accompanying drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in Fig. 2 a kind of CAD teaching methods of augmented reality, comprise the following steps：
S1：Three-dimensional stereo model file is established using AutoCAD softwares, exports and preserves its three-dimensional entity model figure and three regard
Figure, the three-dimensional stereo model file and its illustraton of model, three-view diagram are imported into unity software；
S2：Classroom teaching, by camera acquisition three-dimensional stereo model figure and three-view diagram image and unity software is imported, by
Unity software carries out image recognition, and extracts corresponding three-dimensional three-dimensional model file；
S3：The display pattern of threedimensional model is configured, unity software exports the three-dimensional stereo model file extracted simultaneously
Shown in real time according to the display pattern of setting, display pattern specifically includes display view, dispaly state, angles of display and shown
Show ratio.Showing view includes three-dimensional view, three-view diagram, profile, partial schematic diagram etc., dispaly state include Dynamic Announce and
Static state display.
Further, the illustraton of model and three-view diagram imported in step S1 in Three-dimensional Animation Software is jpeg format.Three-dimensional is dynamic
Draw software and extraction three-dimensional stereo model is identified by two dimensional image, it is therefore desirable to import the file of graphic form in the lump, work as identification
When the image of camera collection is consistent with picture file, then corresponding three-dimensional three-dimensional model file is extracted.
Its three-dimensional model and illustraton of model, three-view diagram are imported three by the present invention by establishing threedimensional model in 3D softwares
Tie up in animation software, in classroom, two dimensional image collection is carried out by video camera, is identified by Three-dimensional Animation Software, is exported
Three-dimensional stereo model file is simultaneously shown, and can be changed display pattern and be shown, three-dimensional vertical from being gone from multiple angles
Body Model.The present invention realizes the conversion between two dimensional image and threedimensional model on classroom, contributes to student's fast construction three-dimensional
Model comprehensive architecture, auxiliary student build 3D thinkings.
Present invention also offers a kind of CAD tutoring systems of augmented reality, the CAD teaching sides based on above-mentioned augmented reality
Method, as shown in figure 1, including the dais main body 1 and computer being installed in dais main body 1, touch display screen 2 and microphone 3, say
Video camera 5 for image collection, Leap Motion gestures sensor 7 and projecting apparatus be installed in platform main body 1, video camera 5,
Leap Motion gestures sensor 7 and projecting apparatus with the calculating mechatronics.
Further, exhibition booth 4 is installed in the main body of dais, exhibition booth 4 can be embedded by stretching or protrudes from dais main body 1,
Video camera 5 is installed on exhibition booth 4, when carrying out threedimensional model displaying without using CAD tutoring systems, exhibition booth 4 can be taken in into dais
In main body 1.Function button 6 and control circuit, control circuit and function button 6, exhibition booth 4, shooting are additionally provided with dais main body 1
Machine 5, projecting apparatus and computer electrically connect, and function button 6 is to the switch of projecting apparatus and display, the start and stop of video camera 5, exhibition booth 4
Stretching be controlled.Other touch display screen 2 is rotatably mounted in dais main body 1.Touch display screen can be in dais master
, when not in use can be screen rotation to screen down, to play a part of protecting screen with 135 ° of rotations on body 1.
When carrying out teaching displaying using this tutoring system, two dimensional image is positioned on exhibition booth 4 first, the court of video camera 5
IMAQ is carried out to imaging surface, image is imported unity software by video camera 5, is carried out image recognition by unity software and is carried
The three-dimensional stereo model file being stored in unity software is taken out, and is shown threedimensional model by projecting apparatus, user is also
The display pattern of three-dimensional stereo model can be adjusted by gesture sensor 7 or Computer display interface, Computer display
Interface is as shown in figure 3, may be selected adjustment angles of display, display view and dispaly state, i.e. rotational display or static state display, in addition
It can be also controlled by gesture sensor 7, when hand is in effective identification region, a virtual hand just occurs on screen,
Three-dimensional stereo model can be adjusted according to the display on screen, including amplify, reduce, mobile and six views conversion etc..
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. the CAD teaching methods of a kind of augmented reality, it is characterised in that comprise the following steps：
S1：Three-dimensional stereo model file is established using 3D softwares, exports and preserves its three-dimensional stereoscopic model and three-view diagram, by institute
State three-dimensional stereo model file and its illustraton of model, three-view diagram import Three-dimensional Animation Software；
S2：Classroom teaching, by camera acquisition three-dimensional stereo model figure and three-view diagram image and import the three-dimensional animation
Software, image recognition is carried out by the Three-dimensional Animation Software, and extract corresponding three-dimensional three-dimensional model file；
S3：The display pattern of threedimensional model is configured, Three-dimensional Animation Software leads the three-dimensional stereo model file extracted
Go out and shown in real time according to the display pattern of setting.
2. the CAD teaching methods of a kind of augmented reality according to claim 1, it is characterised in that in the step S1, lead
It is jpeg format to enter the illustraton of model in Three-dimensional Animation Software and three-view diagram.
3. the CAD teaching methods of a kind of augmented reality according to claim 1, it is characterised in that three in the step S3
Tieing up the display pattern of three-dimensional model file includes display view, dispaly state, angles of display and displaying ratio.
4. the CAD teaching methods of a kind of augmented reality according to claim 1, it is characterised in that described 3D softwares are
AutoCAD softwares.
A kind of 5. CAD teaching methods of augmented reality according to claim 1, it is characterised in that described three-dimensional animation
Software is unity software.
A kind of 6. CAD tutoring systems of augmented reality, for supporting a kind of augmented reality described in claim any one of 1-5
CAD teaching methods, including dais main body and the computer and display that are installed in the main body of dais, it is characterised in that described to say
Video camera, gesture sensor and projecting apparatus be installed in platform main body, the video camera, gesture sensor and projecting apparatus with it is described
Calculate mechatronics.
7. the CAD tutoring systems of a kind of augmented reality according to claim 6, it is characterised in that also include activity installation
Exhibition booth in the dais main body, the exhibition booth can be by stretching embedded or protruding from dais main body, and the video camera is installed
In on the exhibition booth.
8. the CAD tutoring systems of a kind of augmented reality according to claim 7, it is characterised in that also include being arranged at saying
Function button and control circuit in platform main body, the control circuit and the function button, exhibition booth, video camera, projecting apparatus and
Computer is electrically connected, and the function button is controlled to the switch of projecting apparatus and display, the start and stop of video camera, the stretching of exhibition booth
System.
A kind of 9. CAD tutoring systems of augmented reality according to claim 6, it is characterised in that the gesture sensor
For Leap Motion gesture sensors.
10. the CAD tutoring systems of a kind of augmented reality according to claim 6, it is characterised in that the display is tactile
Display screen is touched, the touch display screen is rotatably mounted in the main body of dais.
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| CN108461003A (en) * | 2018-06-01 | 2018-08-28 | 太原工业学院 | A kind of AR geometry Teaching instrument and teaching method |
| CN109215413A (en) * | 2018-09-21 | 2019-01-15 | 福州职业技术学院 | A kind of mold design teaching method, system and mobile terminal based on mobile augmented reality |
| CN109349795A (en) * | 2018-12-21 | 2019-02-19 | 四川变体科技有限公司 | A kind of solid picture-taking dais |
| CN109363352A (en) * | 2018-12-21 | 2019-02-22 | 四川变体科技有限公司 | A kind of artificial intelligence dais |
| CN110136562A (en) * | 2019-05-21 | 2019-08-16 | 黄朝广 | A kind of tutoring system and method showing concrete structure internal structure requirement |
| CN111840999A (en) * | 2020-07-17 | 2020-10-30 | 上海积跬教育科技有限公司 | Game education method based on three-dimensional object graph recognition |
| CN116993930A (en) * | 2023-09-28 | 2023-11-03 | 中冶武勘智诚(武汉)工程技术有限公司 | Three-dimensional model teaching and cultivating courseware manufacturing method, device, equipment and storage medium |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461003A (en) * | 2018-06-01 | 2018-08-28 | 太原工业学院 | A kind of AR geometry Teaching instrument and teaching method |
| CN109215413A (en) * | 2018-09-21 | 2019-01-15 | 福州职业技术学院 | A kind of mold design teaching method, system and mobile terminal based on mobile augmented reality |
| CN109349795A (en) * | 2018-12-21 | 2019-02-19 | 四川变体科技有限公司 | A kind of solid picture-taking dais |
| CN109363352A (en) * | 2018-12-21 | 2019-02-22 | 四川变体科技有限公司 | A kind of artificial intelligence dais |
| CN110136562A (en) * | 2019-05-21 | 2019-08-16 | 黄朝广 | A kind of tutoring system and method showing concrete structure internal structure requirement |
| CN110136562B (en) * | 2019-05-21 | 2021-12-24 | 黄朝广 | Teaching method capable of displaying internal construction requirements of concrete structure |
| CN111840999A (en) * | 2020-07-17 | 2020-10-30 | 上海积跬教育科技有限公司 | Game education method based on three-dimensional object graph recognition |
| CN116993930A (en) * | 2023-09-28 | 2023-11-03 | 中冶武勘智诚(武汉)工程技术有限公司 | Three-dimensional model teaching and cultivating courseware manufacturing method, device, equipment and storage medium |
| CN116993930B (en) * | 2023-09-28 | 2023-12-22 | 中冶武勘智诚(武汉)工程技术有限公司 | Three-dimensional model teaching and cultivating courseware manufacturing method, device, equipment and storage medium |
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