CN109035886A - A kind of interactive mode line holographic projections instructional device - Google Patents
A kind of interactive mode line holographic projections instructional device Download PDFInfo
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- CN109035886A CN109035886A CN201810968851.3A CN201810968851A CN109035886A CN 109035886 A CN109035886 A CN 109035886A CN 201810968851 A CN201810968851 A CN 201810968851A CN 109035886 A CN109035886 A CN 109035886A
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- display screen
- projector
- polygonal pyramid
- control
- instructional device
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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
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Abstract
The present invention relates to intelligent instructional device fields, more particularly to a kind of interactive line holographic projections instructional device, including transparent cabinet body, positioned at the intracorporal polygonal pyramid display screen of transparent cabinet and multiple projectors for projecting teaching image to polygonal pyramid display screen, the projector is symmetrical centered on the vertical center of gravity line of polygonal pyramid display screen, polygonal pyramid display screen bottom is equipped with the rotating mechanism of adjusting position, control system is equipped in transparent cabinet body, control system receives the teaching image from tutoring system, control system, which receives the control information of user and controls the projector, projects teaching image, controlling information includes voice messaging, gesture information and ambient brightness information.User need to only be can be completed without finding control button or touch screen by the interaction of user and device by the i.e. changeable image of brightness of voice or gesture or reduction environment in the present invention, more simple and convenient for use.
Description
Technical field
The present invention relates to intelligent instructional device fields, and in particular to a kind of interactive mode line holographic projections instructional device.
Background technique
In the teaching process of some disciplines, student needs to have good three-dimensional space ability, such as automotive electronics
Profession, electromechanical speciality and mechanical major etc..At present generally using more matchmakers of the compositions such as computer, projector and projection screen in teaching
Body equipment carries out the displaying teaching of three-dimensional structure or three-dimensional components, these 3-D images are shown by two-dimensional surface,
Student still can not show the specific structural features for observing threedimensional model in teaching in detail from this two-dimensional surface.
The generation solid space mirage of line holographic projections technology and the characteristics of interacting mirage with performing artist, ideally solve
The above problem, line holographic projections technology are also referred to as virtual image technology, using interference and diffraction principle record and reconstructed object
True three dimensional image.Current holographic projector generally passes through TF storage card storage image information, then passes through control button
Or touch screen shows the image information in TF storage card.
When needing replacing image information in teaching process, then user needs to find the position of control button or touch screen
It is replaced, if not around control button or touch screen, user needs to find control in a dark environment user when teaching
Button or touch screen stop over the class period；Since ambient brightness is weaker, if opening more headlamp, it is bright to will lead to environment
Degree is too big and can not see the stereopsis to be formed clearly, so being easy when certain customers move in dark environment by barrier
It trips, user is easy to be tripped by barrier during finding control button or touch screen position, and use is inconvenient.
Summary of the invention
The invention is intended to provide a kind of interactive line holographic projections instructional device, to be found in a dark environment when solving teaching
The problem of control button or touch screen delay class period.
Interactive line holographic projections instructional device in this programme, including transparent cabinet body, be located at the intracorporal polygonal pyramid of transparent cabinet
Display screen and multiple projectors that teaching image is projected to polygonal pyramid display screen, the projector are vertical with polygonal pyramid display screen
Symmetrical centered on center of gravity line, polygonal pyramid display screen bottom is equipped with the rotating mechanism of adjusting position, the transparent cabinet body
In be equipped with control system, the control system receives the teaching image from tutoring system, and the control system receives user's
It controls information and controls the projector and project teaching image, the control information includes that voice messaging, gesture information and environment are bright
Spend information.
The beneficial effect of this programme is:
1. carry out line holographic projections teaching, the teaching image in tutoring system is sent to control system, control system control
The projector projects image on polygonal pyramid display screen, and the light beam of the projector projects on multiple sides of polygonal pyramid display screen,
The side of polygonal pyramid display screen carries out interference and diffraction to projecting beam, so that the center position in polygonal pyramid display screen is formed
Aerial solid mirage, if three-dimensional mirage is fuzzy, rotary motion mechanism makes each side face projector of polygonal pyramid display screen,
It allows polygonal pyramid display screen to show clearest complete three-dimensional mirage, polygonal pyramid display screen or projector positional shift is avoided to cause
Image blur.
2. user need to only pass through the brightness of voice or gesture or reduction environment simultaneously, when user needs to switch image
I.e. changeable image, switches image without first finding control button or touch screen again, passes through the interaction of user and this programme device
It can be completed, save the time for finding control button or touch screen delay, avoid stopping over progress of attending class, it is more simple and convenient for use.
Further, the control system includes main control module, communication module and acquisition module, and the communication module receives religion
The teaching image of system is simultaneously sent to main control module, and the voice messaging and gesture information of acquisition module acquisition user is sent to master
Module is controlled, the main control module, which identifies the control instruction in voice messaging and controls the projector, projects teaching image, the master
Control module, which identifies the control instruction in gesture information and controls the projector, projects teaching image.
It allows user to pass through voice or gesture to issue the page turning or switching that control instruction carries out image, improves user and this
The frequency of interaction of instructional device, it is more simple and convenient for use without finding control button or touch screen in use.
Further, the acquisition module acquires the illumination intensity information of environment and is sent to main control module, the master control mould
Block control projector when intensity of illumination is less than threshold value continuously projects teaching image.
When showing teaching under darker environment, allows the main control module control projector continuously to project teaching image, avoid
User controls inconvenience acquisition control when imparting knowledge to students one by one and instructs, more simple and convenient for use.
Further, the rotating mechanism includes bottom plate, and the bottom of the bottom plate is installed with the open tubular column through bottom plate, described
Open tubular column, which is rotatably assorted on the bottom of transparent cabinet body, the open tubular column, is installed with position-limited wheel, hinged limited on the open tubular column
The claw of position-limited wheel rotation processed.
In projection imaging, user can push claw aside and no longer block position-limited wheel by claw, and rotary bottom plate shows polygonal pyramid
Each side face projector of screen allows polygonal pyramid display screen to show clearest complete three-dimensional mirage, avoids polygonal pyramid aobvious
Image blur caused by display screen or projector positional shift.
Further, convex lens is installed on the top of the open tubular column, the inner wall of the open tubular column is equipped with total reflection and applies
Layer, the bottom end of the open tubular column be directed to transparent cabinet side to bottom surface on.
The light of projector projection image is irradiated to hollow top end and planoconvex lens amplification is irradiated into open tubular column, light
In open tubular column by multiple reflections from open tubular column bottom end be irradiated to transparent cabinet side to the ground on, play illuminating effect, avoid
Environment is too dark and makes to be tripped when viewer is mobile by barrier, and light is projected onto ground and is illuminated, and is not to influence image to throw
The imaging penetrated.
Further, barn door is installed at the top of the transparent cabinet body, the projector is arranged on barn door.
In teaching process, barn door has blocked the light partially projected on polygonal pyramid display screen in environment, avoids ring
Light in border influences image and shows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the interactive line holographic projections instructional device embodiment one of the present invention；
Fig. 2 is the rotating mechanism vertical section structure schematic diagram of polygonal pyramid display screen in Fig. 1；
Fig. 3 is the top view of two ratchets in Fig. 2；
Fig. 4 is schematic block circuit diagram in the interactive line holographic projections instructional device embodiment one of the present invention；
Fig. 5 is the structural schematic diagram of the interactive line holographic projections instructional device embodiment two of the present invention.
Specific embodiment
Below by the further details of explanation of specific embodiment.
Appended drawing reference in Figure of description includes: transparent cabinet body 1, barn door 2, polygonal pyramid display screen 3, bottom plate 4, hollow
Column 5, convex lens 6, total reflection layer 7, ratchet 8, pawl head 9, pin 10, fan 11, gas-guide tube 12, pillar 13.
Embodiment one
A kind of interactive mode line holographic projections instructional device, includes as shown in Figure 1: transparent cabinet body 1, in transparent cabinet body 1
Polygonal pyramid display screen 3 and multiple projectors that teaching image is projected to polygonal pyramid display screen 3, polygonal pyramid display screen in the present embodiment
3 be in quadrangular frustum pyramid shaped, and the top of transparent cabinet body 1 is welded with barn door 2, and the projector is mounted on barn door 2, and the projector can use liquid crystal
Show screen or projection lens, the projector carried out centered on the vertical center of gravity line of polygonal pyramid display screen 3 it is symmetrical, i.e., each
The one side of projector projection polygonal pyramid display screen 3.
As shown in Figures 2 and 3, the bottom of polygonal pyramid display screen 3 is equipped with the rotating machine for adjusting 3 position of polygonal pyramid display screen
Structure, rotating mechanism include bottom plate 4, and the bottom of bottom plate 4 is welded with the open tubular column 5 through bottom plate 4, and open tubular column 5 is rotatably assorted saturating
The bottom of bright cabinet body 1, key connection has position-limited wheel on 5 outer wall of open tubular column, and position-limited wheel includes about two ratchets 8 being overlapped, ratchet 8
Rotation direction on the contrary, i.e. a ratchet 8 can only be rotated in the clockwise direction, another ratchet 8 turns only in the counterclockwise direction
Dynamic, by the claw of the hinged restricted position-limited wheel rotation of pin 10 on open tubular column 5, claw includes two pawl heads 9, and pawl head 9 is distinguished
Against two ratchets 8, it is connected with convex lens 6 on the top of open tubular column 5, reflection coating is coated on the inner wall of open tubular column 5, it is empty
The bottom end of stem 5 be directed to transparent 1 side of cabinet body to bottom surface on.
As shown in figure 4, being equipped with control system in transparent cabinet body 1, control system includes main control module, communication module and acquisition
Module, control system receive the teaching image from tutoring system by communication module and teaching image are sent to master control mould
Block, communication module can use wire communication or wireless communication, and tutoring system can realize that main control module passes through acquisition with existing host
Module, which obtains the control information of user and controls the projector, projects teaching image, and control information includes voice messaging, gesture letter
Breath and ambient brightness information, acquisition module can be sent to main control module by the voice messaging that voice collecting unit acquires user,
Main control module, which identifies the control instruction in voice messaging and controls the projector, projects teaching image, such as " changing in voice messaging
The control instructions such as page ", " switching " and " engine " are sent to master control mould by the gesture information of image acquisition units acquisition user
Block, main control module, which identifies the control instruction in gesture information and controls the projector, projects teaching image, " the left side moved to left such as gesture
Control instructions, the acquisition module such as page turning ", " the right page turning " that moves to right and " upper page turning " that moves up pass through photosensitive unit acquisition environment
Illumination intensity information is simultaneously sent to main control module, and main control module control projector when intensity of illumination is less than threshold value continuously projects
Teaching image, i.e., only play out displaying to various teaching images under darker environment, switch over without user, uses
It is more convenient.
When specifically used, image information to be projected on host is sent to main control module by communication module by user, by
Main control module controls each projector and projects image information on each side of polygonal pyramid display screen 3, polygonal pyramid display screen 3
Interference is carried out to throw light and diffraction forms aerial three-dimensional mirage, in imaging, user can push claw aside and no longer block by claw
Firmly ratchet 8, rotary bottom plate 4 make each side face projector of polygonal pyramid display screen 3, unclamp claw after the completion of adjusting and block spine
Wheel 8 avoids the arbitrarily swing of polygonal pyramid display screen 3 in use, allows 3 center position of polygonal pyramid display screen to show most clear
Clear complete three-dimensional mirage, avoids image blur caused by polygonal pyramid display screen 3 or projector positional shift.
When user needs to switch or replaces the image of projection, the voice collecting unit acquisition user in acquisition module is said
" switching ", " replacement " or corresponding image name " engine " be used as control instruction, or by the Image Acquisition in acquisition module
Unit acquires " left page turning ", " right page turning " and " upper page turning " in user gesture and is used as control instruction, or by acquisition module
Photosensitive unit acquisition environment intensity of illumination send as control instruction, and by control instruction to main control module, main control module control
The projector processed projects the image after replacement, improves the frequency of interaction of user Yu this instructional device, without in use
Control button or touch screen are found, it is more simple and convenient for use.
When compared with dark situation playing display image, the light of projector projection image is irradiated to 5 top of open tubular column and through convex
The amplification of lens 6 is irradiated into open tubular column 5, and because being coated with total reflection layer 7 on 5 inner wall of open tubular column, light is in open tubular column 5 through excessive
Secondary reflection is irradiated to transparent 1 side of cabinet body on ground from 5 bottom end of open tubular column, plays illuminating effect, avoids environment too dark and makes to see
The person of seeing is tripped when mobile by barrier, and light is projected onto ground and is illuminated, and will not influence the imaging of image projection.
Embodiment two
Difference with embodiment one is, as shown in figure 5, being welded with pillar 13 between polygonal pyramid display screen 3 and bottom plate 4, props up
Column 13 makes have gap between polygonal pyramid display screen 3 and bottom plate 4, and the projector is mounted on barn door 2 towards 3 side of polygonal pyramid display screen
On, cavity is offered in barn door 2, the thermovent of the projector is located in cavity, and installation is dissipated to cavity on the right side wall of barn door 2
The fan 11 of heat, is connected with gas-guide tube 12 between barn door 2 and bottom plate 4, gas-guide tube 12 is connected to cavity and polygonal pyramid display screen 3, leads
Tracheae 12 is connected on the interior bottom of polygonal pyramid display screen 3, and gas-guide tube 12 is by the air in cavity from the bottom of polygonal pyramid display screen 3
It imports.
When present apparatus progress stereopsis displaying is used continuously, heat dissipation air is discharged into cavity by multiple projectors
In, air is blown into cavity since fan 11 starts always, the air pressure in cavity increases, and air enters in gas-guide tube 12
And be directed at the bottom of polygonal pyramid display screen 3, and because hot-air is smaller than the density of ambient air, hot-air is to moving up
Dynamic, cold air of the hot-air in the gap location contact environment of bottom plate 4 and polygonal pyramid display screen 3 makes in polygonal pyramid display screen 3
Stereopsis generates a small amount of distortion, reinforces the visual effect of stereopsis, while 3 bottom size of polygonal pyramid display screen is greater than top
Size, hot-air pressure in polygonal pyramid display screen 3 increase, overflow hot-air acceleration at the top of polygonal pyramid display screen 3, accelerate
The heat dissipation of the projector avoids projector temperature excessively high, moreover, hot-air spills into barn door 2 at the top of polygonal pyramid display screen 3
When, barn door 2 hinders hot-air to move up and supported back downwards, on the side wall of hot air impingement to polygonal pyramid display screen 3, blows
Fall the dust on 3 side wall of polygonal pyramid display screen, keeps the clear of 3 side wall of polygonal pyramid display screen, guarantee the clear of vision.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. a kind of interactive mode line holographic projections instructional device, it is characterised in that: including transparent cabinet body, be located at the intracorporal more ribs of transparent cabinet
Display screen and multiple projectors that teaching image is projected to polygonal pyramid display screen are bored, the projector is hung down with polygonal pyramid display screen
Symmetrical centered on straight center of gravity line, polygonal pyramid display screen bottom is equipped with the rotating mechanism of adjusting position, the transparent cabinet
Control system is equipped in body, the control system receives the teaching image from tutoring system, and the control system receives user
Control information and control the projector and project teaching image, the control information includes voice messaging, gesture information and environment
Luminance information.
2. interactive mode line holographic projections instructional device according to claim 1, it is characterised in that: the control system includes master
Module, communication module and acquisition module are controlled, the communication module receives the teaching image of tutoring system and is sent to main control module,
The voice messaging and gesture information of acquisition module acquisition user is sent to main control module, and the main control module identifies in voice messaging
Control instruction and control the projector and project teaching image, control instruction and control in the main control module identification gesture information
The projector processed projects teaching image.
3. interactive mode line holographic projections instructional device according to claim 2, it is characterised in that: the acquisition module acquires ring
The illumination intensity information in border is simultaneously sent to main control module, and main control module control projector when intensity of illumination is less than threshold value connects
It is continuous to project teaching image.
4. interactive mode line holographic projections instructional device according to claim 1, it is characterised in that: the rotating mechanism includes bottom
Plate, the bottom of the bottom plate are installed with the open tubular column through bottom plate, and the open tubular column is rotatably assorted in the bottom of transparent cabinet body, institute
It states and is installed with position-limited wheel on open tubular column, the claw of hinged restricted position-limited wheel rotation on the open tubular column.
5. interactive mode line holographic projections instructional device according to claim 4, it is characterised in that: on the top of the open tubular column
It is installed with convex lens, the inner wall of the open tubular column is equipped with reflection coating, and the bottom end of the open tubular column is directed to transparent cabinet body
On lateral bottom surface.
6. interactive mode line holographic projections instructional device according to claim 1, it is characterised in that: the top of the transparent cabinet body
It is installed with barn door, the projector is arranged on barn door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968851.3A CN109035886B (en) | 2018-08-23 | 2018-08-23 | Interactive holographic projection teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968851.3A CN109035886B (en) | 2018-08-23 | 2018-08-23 | Interactive holographic projection teaching device |
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| Publication Number | Publication Date |
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| CN109035886A true CN109035886A (en) | 2018-12-18 |
| CN109035886B CN109035886B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810968851.3A Active CN109035886B (en) | 2018-08-23 | 2018-08-23 | Interactive holographic projection teaching device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979267A (en) * | 2019-05-16 | 2019-07-05 | 齐鲁工业大学 | A kind of literal arts Virtual Simulative Experiment teaching line holographic projections teaching equipment |
| WO2021248515A1 (en) * | 2020-06-12 | 2021-12-16 | 湖州青米传媒科技有限公司 | Advertisement device and working method on basis of 3d holographic projection technology |
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| US20130194644A1 (en) * | 2012-01-30 | 2013-08-01 | Light Blue Optics Ltd | Image display systems |
| CN104898394A (en) * | 2015-04-27 | 2015-09-09 | 华北电力大学 | Holographic projection technology-based man-machine interaction system and method |
| CN206179471U (en) * | 2016-08-31 | 2017-05-17 | 杭州耀晶科技有限公司 | Holographically projected showcase |
| CN107767704A (en) * | 2017-01-23 | 2018-03-06 | 青岛陶知电子科技有限公司 | A kind of holographic intelligent teaching one-piece |
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| CN201198986Y (en) * | 2007-12-19 | 2009-02-25 | 张洪延 | Mixing daylight illuminating system |
| US20130194644A1 (en) * | 2012-01-30 | 2013-08-01 | Light Blue Optics Ltd | Image display systems |
| CN104898394A (en) * | 2015-04-27 | 2015-09-09 | 华北电力大学 | Holographic projection technology-based man-machine interaction system and method |
| CN206179471U (en) * | 2016-08-31 | 2017-05-17 | 杭州耀晶科技有限公司 | Holographically projected showcase |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109979267A (en) * | 2019-05-16 | 2019-07-05 | 齐鲁工业大学 | A kind of literal arts Virtual Simulative Experiment teaching line holographic projections teaching equipment |
| WO2021248515A1 (en) * | 2020-06-12 | 2021-12-16 | 湖州青米传媒科技有限公司 | Advertisement device and working method on basis of 3d holographic projection technology |
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| Publication number | Publication date |
|---|---|
| CN109035886B (en) | 2020-11-03 |
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