CN201383135Y - Multiple touch control interactive device - Google Patents
Multiple touch control interactive device Download PDFInfo
- Publication number
- CN201383135Y CN201383135Y CN200920117686U CN200920117686U CN201383135Y CN 201383135 Y CN201383135 Y CN 201383135Y CN 200920117686 U CN200920117686 U CN 200920117686U CN 200920117686 U CN200920117686 U CN 200920117686U CN 201383135 Y CN201383135 Y CN 201383135Y
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- touch
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- image collecting
- touch panel
- image acquisition
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Abstract
The utility model relates to a multiple touch control interactive device. An existing device can not simultaneously track a plurality of touch points. The device comprises an image collecting box, a touch panel, a projecting device, an image collecting device and an image processor, wherein the touch panel is arranged on the top surface of the image collecting box, the image collecting box and the touch panel are enclosed into an image collecting cavity, the image collecting device is arranged in the image collecting cavity, a camera of the image collecting device is arranged facing to the touch panel, non-transparent thin film covers on the touch panel, the projecting device is arranged just above a touch screen, and the image processor is connected with signals of the image collecting device. The multiple-point man-machine interactive device of the utility model has high sensibility and precision, is not limited by the dimension, can accurately interact with users in real time, can distinguish a plurality of touch points which simultaneously occur at different positions, and enables the interaction between men and computers to be more natural and convenient.
Description
Technical field
The utility model belongs to the control technology field, relates to a kind of multiplex touch control interactive device.
Background technology
Many types and input equipment computer interactive are arranged at present, as, mouse, keyboard, touch pad, telepilot, touch-screen.And touch-screen is simple to operate because of it, nature, and is more and more universal.Touch-screen allows the user to use finger or felt pen to select and moving cursor by simple touch display screen.
Touch-screen now has been widely used in fields such as public information inquiry, Industry Control, bank, amusement, medical treatment.People have realized the facility that touching technique brings, and government sees that also touching industry will become new growth point of China's information industry, begin to pay close attention and support.Along with the city is developed and the infiltration of computer network in national life to information-based direction, each enterprises and institutions all uses multimedia information inquiry system in a large number, to improve the overall image and the excellent service standard of unit, helps to go on the road of information-based service.
Touch-screen generally comprises a touch panel, a controller, an event response software.Touch panel is the transparent panel that has touch sensitive surface that is positioned at the display front, is used to write down touch event, and signal is sent to controller.Computer system is handled and sent to controller to these signals.Event response software is translated into computer instruction to touch event, operates accordingly then.
Touch-screen on the market main three big kinds: resistive technologies touch-screen, surface acoustic wave technique touch-screen, capacitance technology touch-screen.The major part of electric resistance touch screen is a resistance film screen that cooperates very much with display surface, this is a kind of laminated film of multilayer, it with one deck glass or duroplasts flat board as basic unit, exterior view has layer of transparent oxidized metal (ITO indium oxide, transparent conductive resistance) conductive layer also scribbles one deck ITO coating, has the transparent isolating points of many tiny (less than 1/1000 inches) that two conductive layers is separated insulation between them being stamped one deck outside surface cure process, smooth anti-friction plastic layer, its inside surface above.When the finger touch screen, two conductive layers has just had contact in the position, touch point, and controller detects this contact and calculates that (mode according to analog mouse operates again for X, position Y).The surface acoustic wave technique touch-screen mainly is to utilize sound wave to transmit in object surfaces, when object touches the surface, hinders the transmission of sound wave, and transducer detects this variation, informs computing machine, and then carries out the simulation of mouse.The capacitance technology touch-screen then utilizes the induction by current of human body to carry out work.During user's touch screen, because people's bulk electric field, user and touch screen surface form with a coupling capacitance, and for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current divides the electrode on from touch-screen four jiaos and flows out, and the electric current of these four electrodes of flowing through is directly proportional with the distance of pointing four jiaos, and controller passes through the accurate Calculation to these four current ratios, draws touch point position.
The ubiquitous problem of these touch screen technologies is, even when sensing surface has a plurality of target, also can only report a touch point, and they can't follow the trail of a plurality of touch points simultaneously.
The multipoint mode touch screen technology is also arranged at present, but because the complexity of the manufacture craft difficulty of panel and control counting circuit is very big, and this technology only is useful on the less screen of size, if screen size is bigger, precision can be lower, and cost can be very high.Therefore, provide a kind of high precision, be not subjected to the multiplex touch control interactive device of size restriction extremely important again.
Summary of the invention
The purpose of this utility model is exactly at the deficiencies in the prior art, and a kind of multiplex touch control interactive device is provided, and this device can improve the precision and the sensitivity of touch-screen, is not subjected to the restriction of size, reduces the manufacturing cost of touch-screen.
The utility model comprises image acquisition box, touch panel, light projector device, image collecting device, image processor.Described image acquisition box is contour box body, its end face opening, side and bottom surface sealing.Touch panel is the transparent material panel, the end face coupling of shape and size and image acquisition box, and touch panel is arranged on the end face of image acquisition box, and image acquisition box and touch panel are enclosed the image acquisition chamber, and image collecting device is arranged in the image acquisition chamber.The camera of image collecting device is towards the touch panel setting, and touch panel is positioned at the focal plane of the camera of image collecting device.Image collecting device is used to catch the image behind the object contact membrane, and the interference of external environment to image capture device can be effectively reduced in the image acquisition chamber.Touch panel can adopt simple glass or transparent materials such as organic glass or acrylic plate.Be covered with opaque film on the touch panel, be used to produce the image that touch point and the projection of Display projector equipment go out; Light projector device be arranged on touch screen directly over, display image can be projected on the film.Image processor is connected with the image collecting device signal, the image that image processor collects image capture device is handled and is analyzed, obtain touch point coordinate and touch action intention, convert instruction to, calling program carries out event response, and the control projector equipment shows that respective image feeds back to the user.
Multi-tactile human-computer interaction device high sensitivity of the present utility model, high precision, not limited by size, can be mutual accurately in real time with the user, and replaced traditional expensive touch-screen hardware with cheap infrared image acquiring equipment and projector equipment.The utility model can be discerned a plurality of touch points that occur in diverse location simultaneously; Also can analyze the movement locus of each touch point, obtain the just sincere figure that the user touches, thereby user's touch is fed back accordingly.Can come command computer to operate accordingly by gesture, make more natural alternately, convenience between people and the computing machine.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of multiplex touch control interactive device comprises image acquisition box 4, touch panel 3, light projector device 1, image collecting device 5, image processor.
The concrete job step of this device is:
(1) opens light projector device, white light is impinged upon the white film surface;
Initial pictures (image at the white film back side) when (2) image collecting device collection touch pad is contactless, because illumination, the initial pictures brightness ratio is brighter, and the brightness ratio of entire image is more even;
(3) user touches film surface, and contact portion is shone the light that gets off to the top and blocked, and produces single or multiple dim spots;
(4) image collecting device is to the real-time images acquired of touch pad, and will touch image data transmission and give image processor;
(5) image processor subtracts each other the rejecting background to current touch image and initial pictures, obtain producing several zones of dim spot, then the denoising point is carried out in these zones, increase contrast, the corrosion expansion waits processing, obtain the zone of several regular shape at last according to specific threshold value, these several zones are exactly the position of touch point in entire image.By these zones in image pixel coordinate and the screen coordinate that is converted to the touch point between the screen coordinate.During user's single-point touches, can be to judging this touch point moving direction, the area of touch point, and when the touch point disappear, and can analyze user's touch intention in view of the above; During user's multiple point touching, if newly-increased touch point is arranged, then this touch point is registered, numbered and follows the tracks of, position relation between each touch point of real-time analysis, if there is the touch point to disappear, then nullify this touch point, can draw user's touch intention, will touch and be intended to convert director data to and send to the data convey program according to these information;
(6) the data convey program carries out format conversion, encapsulation so that be suitable for the application program of dissimilar interfaces to data, sends to application program then;
(7) application program is moved according to the data that obtain, and feeds back to the user.
Claims (1)
1, a kind of multiplex touch control interactive device comprises image acquisition box, touch panel, light projector device, image collecting device, image processor, it is characterized in that: described image acquisition box is contour box body, its end face opening, side and bottom surface sealing; Touch panel is the transparent material panel, the end face coupling of shape and size and image acquisition box, and touch panel is arranged on the end face of image acquisition box, and image acquisition box and touch panel are enclosed the image acquisition chamber, and image collecting device is arranged in the image acquisition chamber; Be covered with opaque film on the touch panel, light projector device be arranged on touch screen directly over, image processor is connected with the image collecting device signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117686U CN201383135Y (en) | 2009-04-13 | 2009-04-13 | Multiple touch control interactive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117686U CN201383135Y (en) | 2009-04-13 | 2009-04-13 | Multiple touch control interactive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383135Y true CN201383135Y (en) | 2010-01-13 |
Family
ID=41526606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920117686U Expired - Lifetime CN201383135Y (en) | 2009-04-13 | 2009-04-13 | Multiple touch control interactive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383135Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533322B (en) * | 2009-04-13 | 2012-04-25 | 杭州电子科技大学 | Multi-point touch plate and multi-point touch positioning method |
| CN102763110A (en) * | 2010-02-26 | 2012-10-31 | 通用电气公司 | Systems and methods for using structured libraries of gestures on multi-touch clinical systems |
| CN103176635A (en) * | 2011-12-22 | 2013-06-26 | 腾讯科技（深圳）有限公司 | Multi-control touch method and system |
-
2009
- 2009-04-13 CN CN200920117686U patent/CN201383135Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533322B (en) * | 2009-04-13 | 2012-04-25 | 杭州电子科技大学 | Multi-point touch plate and multi-point touch positioning method |
| CN102763110A (en) * | 2010-02-26 | 2012-10-31 | 通用电气公司 | Systems and methods for using structured libraries of gestures on multi-touch clinical systems |
| CN103176635A (en) * | 2011-12-22 | 2013-06-26 | 腾讯科技（深圳）有限公司 | Multi-control touch method and system |
| CN103176635B (en) * | 2011-12-22 | 2016-04-13 | 腾讯科技（深圳）有限公司 | Multi-control touch method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100113 Effective date of abandoning: 20090413 |