CN107632744A - A kind of desktop alternative projection system and control method - Google Patents
A kind of desktop alternative projection system and control method Download PDFInfo
- Publication number
- CN107632744A CN107632744A CN201710935998.8A CN201710935998A CN107632744A CN 107632744 A CN107632744 A CN 107632744A CN 201710935998 A CN201710935998 A CN 201710935998A CN 107632744 A CN107632744 A CN 107632744A
- Authority
- CN
- China
- Prior art keywords
- module
- projection
- image
- user
- action
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a kind of desktop alternative projection system and control method, alternative projection system includes image projection module, image analysing computer module, infrared laser；Infrared induction module, wireless power supply module, bluetooth module and signal processing module.Control method to user by carrying out real-time capture shooting, then fast precise analysis is carried out by message handler, so as to produce the action for the object that is captured, the corresponding various input function of action, the action data combination real-time imaging interaction systems, make to produce the interaction effect combined closely between participant and projection screen.Meanwhile whether have user using infrared induction module automatic detection, and Intelligent mobile equipment can be accessed by bluetooth module and projected, and the power supply of whole device provides by the way that wireless power supply module is unified, and it is easy to operate by wireless charging storage energy.
Description
Technical field
The present invention relates to alternative projection field, and interactive alternative projection system can be realized on the table more particularly to a kind of
System and control method.
Background technology]
Can interactive projector equipment, also known as can immediately perspective plane complete input projector equipment.With projection device use it is general
And can alternative projection it is more obvious compared to the advantage commonly projected.With development in science and technology, occur being mainly used in teaching
Interactive projector equipment, such projection belong to wall projection, and supporting curtain is used together with laser pen instrument, can projected
While, on perspective plane, laser pen writing leaves annotation, but such input inputs for additivity, does not have shadow to project content
Ring, simply projected simultaneously with project content.With the popularization of intelligent mobile terminal, what can be used whenever and wherever possible can alternative projection
Lived closer to people, in order to improve alternative projection automation function, whether may be incorporated into infrared detection technology automatic identification
There is user to need to use alternative projection, reach Auto Power On and shut-off function.The introducing of these functions causes the power consumption of device
Amount is also lifted therewith, and common button cell is not enough to provide the long-time power consumption of device.
Alternative projection species is various, predominantly floor projection, wall projection and aerial line holographic projections etc..But these types
Alternative projection is required for fixing before use premise, since it is desired that connect power supply and can not move, and bulky inconvenience
Carry.The project content of above-mentioned projection and projection can input area excessively immobilization, can not need to change at any time according to user with
Applied to diversified scene.And above-mentioned projection arrangement is limited to projection focal length problem, can only use makes with the more people of large-scale occasion
With, it is impossible to meet that one uses whenever and wherever possible.At present it is new can interactive projector equipment majority based on wearable device, be only capable of
Better simply input function is completed, and it is impracticable.In dining room or library, no alternative projection is applied to order dishes or turn over
Book, therefore it is badly in need of a kind of small-sized desktop interactive projector equipment.
The content of the invention]
The technical problems to be solved by the invention are：Above-mentioned the deficiencies in the prior art are made up, propose a kind of desktop alternative projection system
System and control method.
The technical problem of the present invention is solved by following technical scheme：
An aspect of this disclosure provides a kind of desktop alternative projection system, including image projection module, image analysing computer module,
Infrared laser；Infrared induction module, wireless power supply module, bluetooth module and signal processing module；
Above-mentioned image projection module carries micro-projection device, and projection information is projected screen area by micro-projection device；
Above-mentioned image analysing computer module includes camera, coordinates infrared induction to act target image and carries out real-time capture, carries out fast
Fast rigorous analysis, so as to produce the action of user, act and correspond to various input function, the action data combination image projection,
And the action message for obtaining processing is converted into interactive information, feeds back to signal processing module；
Above-mentioned infrared laser dissipates by gap, for being projected out invisible wire infrared laser, covers projected image, forms one
Individual region, during perspective plane on user's touch desktop, infrared laser propagation is stopped by action.
Above-mentioned infrared induction module coordinates the invisible wire infrared laser that infrared laser is formed, for detecting the dynamic of human body
Make information, feed back to image analysing computer module；
Above-mentioned wireless power supply module is used to power to whole system by wireless charging storage energy；
Above-mentioned signal processing module contains signal processor, and signal processor receives image analysing computer module information, carries out image knowledge
Other places are managed, and according to the action of user, judge pressing position, and the picture for being built in signal transacting sets pressable region,
When judging pressing position for pressable region, then processor carries out built-in operation, then is output to the projection module, makes participant
The interaction effect combined closely is produced between projection screen.
Above-mentioned image projection module is projected by built-in signal or moved by bluetooth connection external smart mobile device, display
Dynamic equipment picture.
Another aspect of the disclosure provides a kind of control method of desktop alternative projection system, including：
S1. when there is user to enter in infrared induction module induction range, infrared induction module is fed back to signal processor starts shooting
Information, or be operated with manual switches and boot up；
S2. built-in miniature projection goes out the setting screen being built in inside signal processor, can also be connected by bluetooth
External smart mobile device is connect, shows mobile device picture；
S3. infrared invisible smooth surface is covered on the perspective plane of micro projection by wire infrared laser, user touches projection
During face, infrared laser propagation is stopped, the camera by assembling high lens catches the invisible smooth surface that infrared laser covers, hair
Signal processor is given, image recognition processing is carried out by signal processor, the action of user is generated, judges pressing position；
The picture for being built in signal transacting sets pressable region, and when judging pressing position for pressable region, then processor is carried out
Built-in operation.
S4. when user stops using this projection, hand have left human testing infrared induction region after five minutes, and device is certainly
Dynamic shutdown, except this can also manually press reset switch shutdown.
The action of above-mentioned user is：Whether finger does slide up and down, and this process is slip retrieval process；If
Finger does not change in the coordinate short time, then enters last location position and handle.
Above-mentioned location position processing is combined judgement, finger with warp image according to finger flare, finger areas coordinate
Crescent hot spot occurs in pressing projection, passes through finger coordinate auxiliary judgment spot center, after determining spot center, signal transacting
Device carries out front and rear contrast to scalloping region, determines warped regions center, and spot center carries out convolution with warped regions center
Weighted superposition, in each position of input signal, a unit response is superimposed, has just obtained output signal.
The beneficial effect that the present invention is compared with the prior art is：
The present invention applies to desktop projection, by using micro projection, closely desktop projection, and subtracting significantly in can completing
Small device volume, by carrying out real-time capture shooting to user, fast precise analysis is then carried out by message handler, so as to
The action for the object that is captured is produced, the corresponding various input function of action, the action data combination real-time imaging interaction systems, makes ginseng
The interaction effect combined closely is produced between person and projection screen.Meanwhile whether have using infrared induction module automatic detection
User, and Intelligent mobile equipment can be accessed by bluetooth module and projected, and the power supply of whole device passes through wireless power supply module
Unified to provide, it is easy to operate by wireless charging storage energy.
Brief description of the drawings]
Fig. 1 is the composition schematic diagram of the desktop alternative projection system of the present invention
Fig. 2 is message handler processing step of the present invention.
Fig. 3 is the crescent moon hot spot left in invisible smooth surface.
Fig. 4 is that image surfaces correct example.
Embodiment]
In order that the technological means that the present invention realizes is clear, the present invention is expanded on further below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of desktop alternative projection system, including image projection module, image analysing computer module, infrared swash
Light；Infrared induction module, wireless power supply module, bluetooth module and signal processing module；Image projection module carries micro projection
Projection information is projected screen area by equipment, micro-projection device；Image analysing computer module includes camera, coordinates infrared induction
Target image is acted and carries out real-time capture, carries out fast precise analysis, so as to produce the action of user, action is corresponding various
Input function, the action data combination image projection, and the action message that processing is obtained is converted into interactive information, feeds back to letter
Number processing module；Infrared laser dissipates by gap, for being projected out invisible wire infrared laser, covers projected image, shape
Into a region, during perspective plane on user's touch desktop, infrared laser propagation has been stopped by action；Infrared induction module
The invisible wire infrared laser for coordinating infrared laser to be formed, for detecting the action message of human body, feeds back to image analysing computer mould
Block；Signal processing module contains signal processor, and signal processor receives image analysing computer module information, carries out at image recognition
Reason, according to the action of user, judges pressing position, and the picture for being built in signal transacting sets pressable region, when sentencing
Disconnected pressing position is pressable region, then processor carries out built-in operation, then is output to the projection module, makes participant with throwing
The interaction effect combined closely is produced between shadow screen.
The energy that electric supply installation is taken wireless power supply module and includes being used to be exported electric energy in a manner of radio magnetic wave is sent out
Power transmission road and the energy acceptance circuit that the energy conversion for radio magnetic wave to be carried is electric energy, the energy transtation mission circuit
It is connected with the power supply of outside, the internal battery connection of the energy acceptance circuit and projection arrangement, to reach whenever and wherever possible
The purpose of this projection arrangement can be used.Wireless power supply module is used for storage energy and powered to whole system；
Camera carries OV7670 wide-angle lens, and real-time capture shooting is carried out to user.
And signal processor respectively with image projection module, image analysing computer module, bluetooth module, infrared induction module,
Wireless power supply module, infrared laser connection.
When being projected using this, overall projection arrangement is placed in horizontal table top, when there is user front close to this device, is used for
The infrared sensor of human testing senses user, to signal processor feedback information, projection arrangement start, except this can also
Manually press reset switch start.When user stops using this projection, hand have left human testing infrared induction region
After five minutes, device automatic shutdown, except this can also manually press reset switch shutdown.
After this projection arrangement is started shooting, built-in miniature projection lenses go out the setting picture being built in inside signal processor
Face, also mobile device picture can be shown by bluetooth connection external smart mobile device.
Infrared invisible smooth surface, user's touch desktop are covered on the perspective plane of micro projection by wire infrared laser
On perspective plane when, it is actual to have stopped infrared laser propagation.
Camera by assembling high lens catches the invisible smooth surface that infrared laser covers, and is sent to signal processor,
Image recognition processing is carried out by signal processor, generates the action of user, pressing position is judged, has been built in signal transacting
Picture sets pressable region, and when judging pressing position for pressable region, then processor carries out built-in operate.
It can be modified with built-in operation according to application scenarios in this built-in pressable region.Citing：If reading, then may be used
To be to select which this book, selection books are either changed in page turning；If dining room is ordered dishes, projection interface can be set as menu, point
Dish record etc..
In order to which user can be more convenient to use intelligence using this projection, the App of the supporting exploitation of this projection arrangement, user
Mobile device enables App, is connected by bluetooth with projector equipment.Supporting App can with autonomous Design project content and projection can be defeated
Enter region, and pressing projection can input area.Platform is provided and allows user according to requirement, voluntarily change project content with
Built-in operation behind pressable region and pressing.
Invisible wire infrared laser：Using projection light source as coordinate origin O, the first coordinate system { O, X, Y, Z }, Z are established
Axle is projected face perpendicular to described；Establishing the second coordinate system, { O', X', Y', Z'}, coordinate origin O' are located at the perspective plane institute
In plane, Z' axles are perpendicular to the perspective plane；Obtain target point on perspective plane and be located at the coordinate D mesh 2 in the second coordinate system, according to
Transformation relation between first coordinate system and the second coordinate system, obtain the target point on perspective plane and be located at the seat in the first coordinate system
Mark D mesh 1；Obtain in the first coordinate system, on perspective plane between the target point and origin O line linear equation；In the first coordinate
In system, obtain the linear equation and be projected the intersecting point coordinate in face, the intersecting point coordinate is to be projected on face and mesh on perspective plane
The position of the corresponding point of punctuate.
Positioned using FPGA exploitation infrared lasers, precision is high, and it is same on the market to handle the solution of image technique scheme by FPGA
The problem of class product input function is excessively single and responds blunt and poor accuracy.FPGA has parallel pipeline, and has
There is complete IP kernel, be suitable as the chip of infrared laser alignment system.With Opencv detections FPGA feasibility, Fig. 4-curved surface
Correction, the shooting picture using camera to black and white chessboard different angle, and corrected using instrument.Fig. 3-finger tip detection,
I.e. after the input of finger tip touching perspective plane, the crescent moon hot spot that is left in invisible smooth surface, carry out relative coordinate and position to obtain hot spot
Coordinate.FPGA has parallel pipeline, and has complete IP kernel, is suitable as the chip of infrared laser positioning.
Message handler, which carries out calculation processes, includes following characteristics：Wire infrared laser dissipates by gap, is formed
Invisible smooth surface covers projected image, and signal processor carries out X to the invisible smooth surface for covering projected image, Y-axis is demarcated, to scheme
Picture symmetrical centre is origin, and projected image is demarcated as into four parts, including（x,y）,（-x,y）,（-x,-y）,（x,-y）, it is easy to
Retrieve afterwards.Projection in user's finger touching perspective plane can input area, finger blocked invisible infrared smooth surface, produces
Infrared reflection, signal processor are reflected by camera receiving infrared-ray, and have demarcated reflector space coordinate, i.e., where finger
Area coordinate A.And project can the projected image portions of input area be radiated on finger, covered, lead by the hot spot on finger
The area image is caused to distort.Camera captured in real-time records the image change on perspective plane, and signal processor is according to finger
Coordinate A xy values positive-negative relationship carries out preindexing, reduces retrieval image-region.It is noted that the irradiation desktop such as sunlight, light also can
Hot spot is produced, but because stopping infrared black light without in kind, will not leave behind reflector space coordinate, can by preindexing
To avoid influence of such use environment to projector equipment.
After being handled by preindexing, retrieval image-region is reduced, signal processor is to new retrieval image-region
Re-scale, method be similar to before X, Y-axis demarcation.New retrieval image-region is divided into（x,y）,（-x,y）,（-x,-y）,
（x,-y）Four parts, if being changed before and after the coordinate A of finger region in the short time, it can be converted and closed according to A x, y positive and negative values
System show whether finger does slide up and down, and this process is slip retrieval process；If finger is not sent out in the coordinate A short time
Changing, then enter last location position and handle, location position processing is according to finger flare, finger areas coordinate with turning round
Diagram picture, which combines, to be judged, because crescent hot spot occurs, it is necessary to finger coordinate auxiliary judgment spot center B in finger pressing, really
After determining spot center, signal processor carries out front and rear contrast to scalloping region, determines warped regions center C, spot center B
Convolution weighted superposition is carried out with warped regions center C, in each position of input signal, a unit response is superimposed, just obtains
Output signal.Three key steps finally are combined, as shown in Fig. 2 excluding external interference, judge the action of user.
According to the main calculation processes of above-mentioned signal processor, user is using supporting App change projections interface
With can input area and signal transacting subsequent automatic operation when, demarcated based on processing subsequent step, that is, set with location revision
Position fixing set, setting means are drawn a circle to approve for figure, that is, after selecting figure, all coordinates in the figure form coordinate set, when
Signal processor judges that generation action in set coordinate set, makes the corresponding subsequent operation of user's setting.
The present invention is based on product-desktop touch-control system, and output is used as using micro projection, it is not necessary to corollary equipment, can
Used in any desktop projection, product is compact to be easy to carry, and completes interaction whenever and wherever possible.Moreover, interact throwing compared to new
Shadow equipment, the invention belongs to desktop projection, alignment system is completed based on FPGA, is verified using Opencv visions storehouse, and positioning is more
It is accurate sensitive, it diversified can input, pursue practical.Different from wearable projector equipment, the present invention uses functional diversities,
Application scenarios are more extensive, pursue and come into people's life as new input equipment.
Every technical scheme for belonging to the principle of the invention belongs to protection scope of the present invention.For those skilled in the art
For member, some improvement for carrying out on the premise of the principle of the present invention is not departed from, these improvement also should be regarded as the guarantor of the present invention
Protect scope.
Claims (5)
- A kind of 1. desktop alternative projection system, it is characterised in that：Including image projection module, image analysing computer module, infrared laser； Infrared induction module, wireless power supply module, bluetooth module and signal processing module；Described image projection module carries micro-projection device, and projection information is projected screen area by micro-projection device；The image analysing computer module includes camera, coordinates infrared induction to act target image and carries out real-time capture, carries out fast Fast rigorous analysis, so as to produce the action of user, act and correspond to various input function, the action data combination image projection, And the action message for obtaining processing is converted into interactive information, feeds back to signal processing module；The infrared laser dissipates by gap, for being projected out invisible wire infrared laser, covers projected image, forms one Individual region, during perspective plane on user's touch desktop, infrared laser propagation is stopped by action；The infrared induction module coordinates the invisible wire infrared laser that infrared laser is formed, and the action for detecting human body is believed Breath, feeds back to image analysing computer module；The wireless power supply module is used to power to whole system by wireless charging storage energy；The signal processing module contains signal processor, and signal processor receives image analysing computer module information, carries out image knowledge Other places are managed, and according to the action of user, judge pressing position, and the picture for being built in signal transacting sets pressable region, When judging pressing position for pressable region, then processor carries out built-in operation, then is output to the projection module, makes participant The interaction effect combined closely is produced between projection screen.
- A kind of 2. desktop alternative projection system according to claim 1, it is characterised in that：Image projection module passes through built-in Signal projects or by bluetooth connection external smart mobile device, shows mobile device picture.
- A kind of 3. control method of alternative projection system as claimed in claim 1, it is characterised in that：S1. when there is user to enter in infrared induction module induction range, infrared induction module is fed back to signal processor starts shooting Information, or be operated with manual switches and boot up；S2. built-in miniature projection goes out the setting screen being built in inside signal processor, can also be connected by bluetooth External smart mobile device is connect, shows mobile device picture；S3. infrared invisible smooth surface is covered on the perspective plane of micro projection by wire infrared laser, user touches projection During face, infrared laser propagation is stopped, the camera by assembling high lens catches the invisible smooth surface that infrared laser covers, hair Signal processor is given, image recognition processing is carried out by signal processor, the action of user is generated, judges pressing position； The picture for being built in signal transacting sets pressable region, and when judging pressing position for pressable region, then processor is carried out Built-in operation；S4. when user stops using this projection, hand have left human testing infrared induction region after five minutes, and device is automatic Shutdown, except this can also manually press reset switch shutdown.
- 4. the control method of a kind of desktop alternative projection system according to claim 3, it is characterised in that user's is dynamic As：Whether finger does slide up and down, and this process is slip retrieval process；If finger does not occur in the coordinate short time Change, then enter last location position and handle.
- 5. the control method of a kind of desktop alternative projection system according to claim 4, it is characterised in that at location position Reason is combined judgement with warp image according to finger flare, finger areas coordinate, and crescent light occurs in finger pressing projection Spot, by finger coordinate auxiliary judgment spot center, after determining spot center, before signal processor is carried out to scalloping region After contrast, determine warped regions center, spot center carries out convolution weighted superposition with warped regions center, in the every of input signal Individual position, a unit response is superimposed, has just obtained output signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808355 | 2017-09-09 | ||
| CN2017108083557 | 2017-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107632744A true CN107632744A (en) | 2018-01-26 |
Family
ID=61104055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710935998.8A Pending CN107632744A (en) | 2017-09-09 | 2017-10-10 | A kind of desktop alternative projection system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107632744A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567415A (en) * | 2018-11-27 | 2019-04-05 | 北京数科技有限公司 | A kind of multi-media desk |
| CN109656372A (en) * | 2018-12-28 | 2019-04-19 | 河南宏昌科技有限公司 | Human-computer interaction device and its operating method based on infrared imperceptible structured light |
| CN110209762A (en) * | 2018-02-11 | 2019-09-06 | 京东方科技集团股份有限公司 | A kind of reading tables and reading method |
| CN110223619A (en) * | 2019-06-11 | 2019-09-10 | 上海易视计算机科技股份有限公司 | Method for controlling projection, device, optical filter and optical projection system |
| CN110558728A (en) * | 2019-09-02 | 2019-12-13 | 海宁钟江智能科技有限公司 | wireless projection type intelligent learning table touch system and method thereof |
| CN110609647A (en) * | 2019-09-02 | 2019-12-24 | 海宁钟江智能科技有限公司 | Wireless capacitance touch projection type whiteboard interactive system and method thereof |
| CN110825214A (en) * | 2018-08-08 | 2020-02-21 | 海南博树创造科技有限公司 | AR intelligent dish ordering system |
| CN112995621A (en) * | 2021-02-04 | 2021-06-18 | 深圳市普汇智联科技有限公司 | Intelligent projection device with infrared awakening function and monitoring method |
| CN113630589A (en) * | 2021-08-12 | 2021-11-09 | 徐金鹏 | Interactive desktop projection system and projection equipment thereof |
| CN113805729A (en) * | 2021-09-16 | 2021-12-17 | 上海逻世智能信息科技有限公司 | Multifunctional multimedia interaction and equipment expansion workstation |
| WO2022127634A1 (en) * | 2020-12-16 | 2022-06-23 | 高勇 | Interactive projection input/output device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508578A (en) * | 2011-10-09 | 2012-06-20 | 清华大学深圳研究生院 | Projection positioning device and method as well as interaction system and method |
| CN102799318A (en) * | 2012-08-13 | 2012-11-28 | 深圳先进技术研究院 | Human-machine interaction method and system based on binocular stereoscopic vision |
| CN202795308U (en) * | 2012-08-31 | 2013-03-13 | 深圳市印天印象科技有限公司 | Tabletop projection touch control system |
| CN202872474U (en) * | 2012-09-26 | 2013-04-10 | 惠州市华阳多媒体电子有限公司 | Projector wireless charger |
| CN103336634A (en) * | 2013-07-24 | 2013-10-02 | 清华大学 | Adaptive hierarchical structure light-based touch detection system and method |
| CN204515685U (en) * | 2015-02-26 | 2015-07-29 | 华南理工大学 | Based on the visual processes man-machine interaction optical projection system of Android |
| CN105807989A (en) * | 2016-02-29 | 2016-07-27 | 深圳柔石科技有限公司 | Gesture touch method and system |
| CN207586888U (en) * | 2017-09-09 | 2018-07-06 | 深圳大学 | A kind of desktop alternative projection system |
-
2017
- 2017-10-10 CN CN201710935998.8A patent/CN107632744A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508578A (en) * | 2011-10-09 | 2012-06-20 | 清华大学深圳研究生院 | Projection positioning device and method as well as interaction system and method |
| CN102799318A (en) * | 2012-08-13 | 2012-11-28 | 深圳先进技术研究院 | Human-machine interaction method and system based on binocular stereoscopic vision |
| CN202795308U (en) * | 2012-08-31 | 2013-03-13 | 深圳市印天印象科技有限公司 | Tabletop projection touch control system |
| CN202872474U (en) * | 2012-09-26 | 2013-04-10 | 惠州市华阳多媒体电子有限公司 | Projector wireless charger |
| CN103336634A (en) * | 2013-07-24 | 2013-10-02 | 清华大学 | Adaptive hierarchical structure light-based touch detection system and method |
| CN204515685U (en) * | 2015-02-26 | 2015-07-29 | 华南理工大学 | Based on the visual processes man-machine interaction optical projection system of Android |
| CN105807989A (en) * | 2016-02-29 | 2016-07-27 | 深圳柔石科技有限公司 | Gesture touch method and system |
| CN207586888U (en) * | 2017-09-09 | 2018-07-06 | 深圳大学 | A kind of desktop alternative projection system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110209762A (en) * | 2018-02-11 | 2019-09-06 | 京东方科技集团股份有限公司 | A kind of reading tables and reading method |
| CN110825214A (en) * | 2018-08-08 | 2020-02-21 | 海南博树创造科技有限公司 | AR intelligent dish ordering system |
| CN109567415A (en) * | 2018-11-27 | 2019-04-05 | 北京数科技有限公司 | A kind of multi-media desk |
| CN109656372A (en) * | 2018-12-28 | 2019-04-19 | 河南宏昌科技有限公司 | Human-computer interaction device and its operating method based on infrared imperceptible structured light |
| CN110223619A (en) * | 2019-06-11 | 2019-09-10 | 上海易视计算机科技股份有限公司 | Method for controlling projection, device, optical filter and optical projection system |
| CN110609647A (en) * | 2019-09-02 | 2019-12-24 | 海宁钟江智能科技有限公司 | Wireless capacitance touch projection type whiteboard interactive system and method thereof |
| CN110558728A (en) * | 2019-09-02 | 2019-12-13 | 海宁钟江智能科技有限公司 | wireless projection type intelligent learning table touch system and method thereof |
| WO2022127634A1 (en) * | 2020-12-16 | 2022-06-23 | 高勇 | Interactive projection input/output device |
| TWI796039B (en) * | 2020-12-16 | 2023-03-11 | 高勇 | Interactive projection input and output devices |
| CN112995621A (en) * | 2021-02-04 | 2021-06-18 | 深圳市普汇智联科技有限公司 | Intelligent projection device with infrared awakening function and monitoring method |
| CN113630589A (en) * | 2021-08-12 | 2021-11-09 | 徐金鹏 | Interactive desktop projection system and projection equipment thereof |
| CN113630589B (en) * | 2021-08-12 | 2023-09-22 | 徐金鹏 | Interactive desktop projection system and projection equipment thereof |
| CN113805729A (en) * | 2021-09-16 | 2021-12-17 | 上海逻世智能信息科技有限公司 | Multifunctional multimedia interaction and equipment expansion workstation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107632744A (en) | A kind of desktop alternative projection system and control method | |
| US20200265234A1 (en) | Electronic device for providing shooting mode based on virtual character and operation method thereof | |
| JP6310556B2 (en) | Screen control method and apparatus | |
| US10101874B2 (en) | Apparatus and method for controlling user interface to select object within image and image input device | |
| US20200201446A1 (en) | Apparatus, method and recording medium for controlling user interface using input image | |
| CN110495819B (en) | Robot control method, robot, terminal, server and control system | |
| CN111382624B (en) | Action recognition method, device, equipment and readable storage medium | |
| CN207586888U (en) | A kind of desktop alternative projection system | |
| CN106445242B (en) | Pressure touch device and electronic equipment | |
| KR102627014B1 (en) | electronic device and method for recognizing gestures | |
| WO2022110800A1 (en) | Positioning method and apparatus, electronic device, storage medium, and computer program product | |
| CN107741783B (en) | Electronic transfer method and system | |
| CN112150560B (en) | Method, device and computer storage medium for determining vanishing point | |
| CN108881544A (en) | A kind of method taken pictures and mobile terminal | |
| CN109684277A (en) | A kind of image display method and terminal | |
| CN112351188A (en) | Apparatus and method for displaying graphic elements according to objects | |
| CN111192072A (en) | User grouping method and device and storage medium | |
| CN112396076A (en) | License plate image generation method and device and computer storage medium | |
| CN116129526A (en) | Method and device for controlling photographing, electronic equipment and storage medium | |
| CN108765321A (en) | It takes pictures restorative procedure, device, storage medium and terminal device | |
| CN116301551A (en) | Touch identification method, touch identification device, electronic equipment and medium | |
| US11620044B2 (en) | Mobile terminal | |
| CN104063043A (en) | Control method and device | |
| TWI666580B (en) | Virtual input system | |
| CN111444945A (en) | Sample information filtering method and device, computer equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180126 |