CN202257528U - Screen input system - Google Patents
Screen input system Download PDFInfo
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- CN202257528U CN202257528U CN2011203943057U CN201120394305U CN202257528U CN 202257528 U CN202257528 U CN 202257528U CN 2011203943057 U CN2011203943057 U CN 2011203943057U CN 201120394305 U CN201120394305 U CN 201120394305U CN 202257528 U CN202257528 U CN 202257528U
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- screen
- receiving trap
- input system
- light curtain
- laser light
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Abstract
The utility model discloses a screen input system, which comprises an operation screen, a touch screen device, a laser light curtain transmitter, a receiving device and a computer host, wherein the receiving device is arranged in front of a side surface of the operation screen and comprises an infrared filter, a camera module and a signal processing module; a connector which is in communication with the computer host is arranged at an output end of the signal processing module; the laser light curtain transmitter is arranged at the top of the operation screen and forms a light curtain on the surface of the operation screen; the touch screen device is contacted with the operation screen and forms a reflected light point at a contact position; the camera module acquires light which is emitted from the light curtain and reflected by the reflected light point; and the signal processing module processes a light image which is acquired by the camera module. By arranging the laser light curtain transmitter and the receiving device on the operation screen, the operation screen can be automatically calibrated; the touch screen device is diversified; and the screen input system is low in manufacturing cost, simple in structure, convenient and practical.
Description
Technical field
The utility model relates to the computer entry device technical field, especially relates to a kind of screen input system.
Background technology
Along with the development of digital technology, the input technology in the man-machine interaction just develops into diversified input mode from traditional mouse, keyboard entry method.Popular along with smart mobile phone and panel computer; The direct screen gesture input method of hommization is widely used more; Up-to-date Windows7 has formally supported the gesture input method; This feasible input can be directly carried out on the screen of output image being used for, and promptly screen is directly imported, and need not external connection keyboard and mouse.
Patented claim CN200810035544.6 discloses a kind of laser pen indication and luminescent spot track recognizing method; The light spot position that the marking tools that utilizes monochrome information to extract user's use indicates on the target screen; But, influenced discrimination because luminous point and display image mix.Patented claim CN200620044540.0 discloses a kind of photoelectricity location and the infrared projector of writing and has had the optical projection system of this projector; But the perception operation of starting writing, start to write automatically; And it is confined to projection screen; Can not be applied on the display devices such as large scale liquid crystal display, rear-projection, be not a kind of general input equipment device.Patented claim CN200710039996.7 discloses a kind of mouse system based on vision track and speech recognition; But only the mobile cursor of mouse that converts into of the light spot image through detect following the tracks of infrared mark is in the motion that shows on the desktop; But not the light spot position on the screen, and can't realize the interactive writing on the screen.Patented claim CN200910157908.2 discloses a kind of multiple identified surface infrared laser curtain apparatus and method; But need the infrared laser transmitter to be installed four corners; Do not propose supporting receiving trap and image processing method yet, do not reach a kind of computer input.
Touch-screen input is to realize through certain location pick-up unit (like capactive film, resistive film, infrared electro matrix etc.) is installed on screen; Produce signal transformation by user's finger in the touch screen surface touching and realize control operation; Can realize the input of contact gesture, directly writing words, rolling mouse pointer etc. on screen through using special touch-screen or electronic whiteboard.
The method of on screen, directly importing is the development in future direction; Directly touch-screen input of small-sized electronic product; The input area when less cost very low, be widely used, but then there are problems in the touch screen technology in fields such as common computer screen and giant-screen displaying, Entertainments.
1. special equipment is adopted in touch-screen input; Upgrade cost to existing screen is too high; This need be replaced with touch-screen display with current widely used LCD and CRT monitor, and the projection screen of widespread use then need be replaced by electronic whiteboard in teaching, exhibition, amusement.
2. not only price is higher for electronic whiteboard, laser projection system, and takes up room, needs independent installation wiring, and the location calibration operation of screen is loaded down with trivial details.Current infrared electro blank adopts infrared transmitting tube and receiving trap, manufacturing and the installation of grid type loaded down with trivial details, can not on existing ordinary screen, upgrade.
3. the input of present gesture is the input of contact gesture, promptly must contact or carry out near screen very much, has problems such as screen wearing and tearing and health like this, surpasses also inconvenience realization contact gesture input on the large-scale projection screen of physical activity scope.
The utility model content
The purpose of the utility model is to overcome deficiency of the prior art, and a kind of a kind of screen input system of simple in structure, the restriction that do not receive screen size and kind is provided.
For reaching above-mentioned purpose; A kind of screen input system of the utility model; It comprises function screen, touch screen-device, laser light curtain transmitter, receiving trap and host computer; Said receiving trap is installed in said function screen one side surface the place ahead; Said receiving trap comprises infrared filter, is arranged at the camera module of said infrared filter rear side and the signal processing module that is connected with said camera module output terminal, and said signal processing module output terminal is provided with host computer and sets up the connector of communicating by letter, and the corresponding said receiving trap of said laser light curtain transmitter is installed on said function screen the same side; Said laser light curtain transmitter forms a light curtain on said function screen surface; Said touch screen-device contacts said function screen and causes reflection light point in the contact position, and said camera module obtains the light of light curtain from said reflection light point reflection, and said signal processing module is handled the light image that said camera module obtains.
Further, said receiving trap is installed in said function screen top surface the place ahead, and said laser light curtain transmitter is installed on said function screen top.
Further, said laser light curtain transmitter is provided with LASER Discharge Tube and glass lens, and said LASER Discharge Tube is launched a branch of infrared laser light, and said infrared laser light sees through said glass lens formation and expands light forward.
Further, said receiving trap also comprises shell, and said infrared filter, camera module and signal processing module are arranged at respectively in the said shell, and said shell bottom is provided with pedestal, offers pilot hole on the said pedestal.
Further, the vertical join line angle of said receiving trap and said function screen top and bottom margin is 45 ~ 60 degree.
Further, said touch screen-device is operator's finger or pencil type apparatus.
Further, said host computer installing drive application software.
Further, said connector is said receiving trap of wired connection and host computer, comprises USB plug and cable, and perhaps said connector is the transmitter and the wireless receiver of said receiving trap of wireless connections and host computer.
In sum; A kind of screen input system of the utility model is through installing laser light curtain transmitter and receiving trap and can calibrating automatically on the function screen of different size or material; Said function screen surface forms a light curtain; Utilize touch screen-device to contact said function screen and cause reflection light point in the contact position, the light curtain forms the infrared light of all directions under the diffuse reflection of reflection light point, and receiving trap obtains the infrared light image of reflection light point and judges actual coordinate and then the realization information input of reflection light point on function screen; Cooperate the diversity of touch screen-device, cheap for manufacturing cost, simple in structure, convenient and practical.
Description of drawings
Fig. 1 is the enforcement scene graph of a kind of screen input system of the utility model.
Fig. 2 is the side view of a kind of screen input system of the utility model shown in Figure 1.
Fig. 3 is the structural representation of the utility model receiving trap shown in Figure 1.
Fig. 4 is the utility model function screen shown in Figure 1 and laser light curtain transmitter combinations figure.
Fig. 5 is the utility model function screen shown in Figure 1 and another constitutional diagram of laser light curtain transmitter.
Embodiment
For further understanding characteristic, technological means and the specific purposes that reached, the function of the utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
See also Fig. 1 to Fig. 5, a kind of screen input system of the utility model comprises function screen 10, touch screen-device 20, laser light curtain transmitter 30, receiving trap 40 and host computer 50.Said function screen 10 can be set to the different size of CRT display screen, projection cloth, wall curtain and led array or the device of material; Said function screen 10 tops and bottom are provided with groove; Said touch screen-device 20 is operator's finger or pencil type apparatus; Said laser light curtain transmitter 30 is installed on function screen 10 top groove, fixes through pre-designed clamper stationary installation clamper.Said laser light curtain transmitter 30 is provided with LASER Discharge Tube 31 and semilune glass lens 32; Said LASER Discharge Tube 31 can be launched a branch of infrared laser light 33; Said infrared laser light 33 arrives said glass lens 32 through a light path; Said infrared laser light 33 sees through said glass lens 32 formation and expands light forward; Fixedly make light form a fan-shaped light curtain 34 on said function screen 10 surfaces through clamper, the said touch screen-device 20 said function screens 10 of contact also cause reflection light point 21 in the contact position.
Said receiving trap 40 comprises shell 41, infrared filter 42, camera module 43 and signal processing module 44; Said shell 41 is a hemispherical dome structure; Said shell 41 comprises transparent window 411; Said shell 41 bottoms are provided with pedestal 412, offer pilot hole 413 on the said pedestal 412, so that said receiving trap 40 is fixed on wall or the work top.Said infrared filter 42, camera module 43 and signal processing module 44 are arranged at respectively in the said shell 41, and said infrared filter 42 can filter visible light.Said camera module 43 is arranged at said infrared filter 42 rear sides, to obtain light curtain 34 reflects and see through said infrared filter 42 from said reflection light point 21 IR.Said signal processing module 44 is provided with microprocessor 441; Said microprocessor 441 adopts a slice STM32F103 enhanced high-speed 32 bit processors; Said microprocessor 441 input ends link to each other with the output terminal of said camera module 43; Thereby the IR image that 441 pairs of said camera modules 43 of said microprocessor obtain carries out the image coordinate that the filtering denoising Processing is discerned said reflection light point 21; The coordinate method of the said reflection light point 21 of said microprocessor 441 identifications is that the video frame images on the said function screen 10 is scanned, and the amount of pixels in the clear zone of adding up judges then that when amount of pixels reaches setting value there is reflection light point 21 in this position; Add up amount of pixels when reaching setting value when scanning another clear zone, and then judging has more than one reflection light point 21.The output terminal of said signal processing module 44 is provided with host computer 50 and sets up the connector 60 of communicating by letter; Said connector 60 is said receiving trap 40 of wired connection and host computer 50; Comprise USB plug 61 and cable 62, perhaps said connector 60 is the transmitter and the wireless receiver (figure does not show) of said receiving trap of wireless connections and host computer.
Said host computer 50 installing drive application software are to realize the drafting and the character identification function of handwriting trace.
When the utility model was installed, when the operator carried out the touch screen operation in the certain altitude of said function screen 10, said laser light curtain transmitter 30 was vertically mounted on function screen 10 tops, and said sector optical curtain 34 shines downwards with 120 degree angles; When the operator carries out the touch screen operation to whole operation screen 10; Said laser light curtain transmitter 30 is installed in function screen both sides, 10 top respectively and is 45 degree angles with said function screen 10, and said sector optical curtain 34 covers said function screen 10 surface rectangle zone with an angle of 90 degrees degree.Said receiving trap 40 is installed in said function screen 10 top surface the place aheads; Said receiving trap 40 is 45 ~ 60 degree with the vertical join line angle of said function screen 10 tops and bottom margin; After said receiving trap 40 installation sites are tentatively confirmed; The operation application software is finely tuned the said receiving trap 40 and the vertical join line angle of said function screen 10 tops and bottom margin, makes said camera module 43 detect complete function screen 10.
In sum; A kind of screen input system of the utility model is through installing laser light curtain transmitter 30 and receiving trap 40 and can calibrating automatically on the function screen 10 of different size or material; Said function screen 10 surfaces form a light curtain 34; Utilize the touch screen-device 20 said function screens 10 of contact and cause reflection light point 21 in the contact position; Light curtain 34 forms the infrared light of all directions under the diffuse reflection of reflection light point 21; Receiving trap 40 obtains the infrared light image of reflection light point 21 and judges actual coordinate and then the realization information input of reflection light point 21 on function screen 10, cooperates the diversity of touch screen-device 20, and is cheap for manufacturing cost, simple in structure, convenient and practical.
The above embodiment has only expressed a kind of embodiment of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with accompanying claims.
Claims (8)
1. screen input system; Comprise function screen (10), touch screen-device (20), laser light curtain transmitter (30), receiving trap (40) and host computer (50); Said receiving trap (40) is installed in said function screen (10) one side surface the place aheads; Said receiving trap (40) comprises infrared filter (42), is arranged at the camera module (43) of said infrared filter (42) rear side and the signal processing module (44) that is connected with said camera module (43) output terminal; Said signal processing module (44) output terminal is provided with host computer (50) and sets up the connector (60) of communicating by letter; It is characterized in that: the corresponding said receiving trap of said laser light curtain transmitter (30) (40) is installed on said function screen (10) the same side; Said laser light curtain transmitter (30) forms a light curtain (34) on said function screen (10) surface; Said touch screen-device (20) contacts said function screen (10) and causes reflection light point (21) in the contact position; Said camera module (43) obtains the light of light curtain (34) from said reflection light point (21) reflection, and said signal processing module (44) is handled the light image that said camera module (43) obtains.
2. a kind of screen input system according to claim 1 is characterized in that: said receiving trap (40) is installed in said function screen (10) top surface the place ahead, and said laser light curtain transmitter (30) is installed on said function screen (10) top.
3. a kind of screen input system according to claim 1; It is characterized in that: said laser light curtain transmitter (30) is provided with LASER Discharge Tube (31) and glass lens (32); Said LASER Discharge Tube (31) emission a branch of infrared laser light (33), said infrared laser light (33) see through said glass lens (32) formation and expand light forward.
4. a kind of screen input system according to claim 1; It is characterized in that: said receiving trap (40) also comprises shell (41); Said infrared filter (42), camera module (43) and signal processing module (44) are arranged at respectively in the said shell (41); Said shell (41) bottom is provided with pedestal (412), offers pilot hole (413) on the said pedestal (412).
5. a kind of screen input system according to claim 1 is characterized in that: said receiving trap (40) is 45 ~ 60 degree with the vertical join line angle of said function screen (10) top and bottom margin.
6. a kind of screen input system according to claim 1 is characterized in that: said touch screen-device (20) is operator's finger or pencil type apparatus.
7. a kind of screen input system according to claim 1 is characterized in that: said host computer (50) installing drive application software.
8. a kind of screen input system according to claim 1; It is characterized in that: said connector (60) is said receiving trap of wired connection (40) and host computer (50); Comprise USB plug (61) and cable (62), perhaps said connector (60) is the transmitter and the wireless receiver of said receiving trap of wireless connections (40) and host computer (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203943057U CN202257528U (en) | 2011-10-17 | 2011-10-17 | Screen input system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203943057U CN202257528U (en) | 2011-10-17 | 2011-10-17 | Screen input system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257528U true CN202257528U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203943057U Expired - Fee Related CN202257528U (en) | 2011-10-17 | 2011-10-17 | Screen input system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257528U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436327A (en) * | 2011-10-17 | 2012-05-02 | 东莞华中科技大学制造工程研究院 | Screen input system and implementation method thereof |
| US10073529B2 (en) | 2014-11-14 | 2018-09-11 | Coretronic Corporation | Touch and gesture control system and touch and gesture control method |
| US10216331B2 (en) | 2016-02-16 | 2019-02-26 | Coretronic Corporation | Touch projection system and touch sensitivity adjusting method thereof |
| US10310668B2 (en) | 2016-01-18 | 2019-06-04 | Coretronic Corporation | Touch screen display system and a method for controlling a touch screen display system |
-
2011
- 2011-10-17 CN CN2011203943057U patent/CN202257528U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436327A (en) * | 2011-10-17 | 2012-05-02 | 东莞华中科技大学制造工程研究院 | Screen input system and implementation method thereof |
| CN102436327B (en) * | 2011-10-17 | 2014-07-30 | 东莞华中科技大学制造工程研究院 | Screen input system and implementation method thereof |
| US10073529B2 (en) | 2014-11-14 | 2018-09-11 | Coretronic Corporation | Touch and gesture control system and touch and gesture control method |
| US10310668B2 (en) | 2016-01-18 | 2019-06-04 | Coretronic Corporation | Touch screen display system and a method for controlling a touch screen display system |
| US10216331B2 (en) | 2016-02-16 | 2019-02-26 | Coretronic Corporation | Touch projection system and touch sensitivity adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |