CN201556191U - Big screen multiple touch control device - Google Patents
Big screen multiple touch control device Download PDFInfo
- Publication number
- CN201556191U CN201556191U CN2010200497577U CN201020049757U CN201556191U CN 201556191 U CN201556191 U CN 201556191U CN 2010200497577 U CN2010200497577 U CN 2010200497577U CN 201020049757 U CN201020049757 U CN 201020049757U CN 201556191 U CN201556191 U CN 201556191U
- Authority
- CN
- China
- Prior art keywords
- infrared
- touch
- touch control
- projection
- touch panel
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The utility model relates to a big screen multiple touch control device. The contact precision and the sensitivity of an existing product are not high enough. The upper portions of four vertex angles of a rectangular transparent contact panel in the big screen multiple touch control device are symmetrically provided with infrared lasers, and the back surface of the transparent contact panel is adhered with a projection soft curtain which has the same area with the transparent contact panel. The lower portion of the projection soft curtain is provided with a plurality of sets of infrared image collecting devices and projection devices, the projection devices are connected with signals of the output end of the controller, and the infrared image collecting devices are connected with signals of the input end of the controller. The infrared image collecting device comprises an infrared camera and a visible light filter which is arranged on the front surface of the infrared camera. The big screen multiple touch control device has the characteristics of high sensitivity and high precision, and is not limited by the size and the like through the image treatment technology.
Description
Technical field
The utility model belongs to electronic technology field, relates to a kind of touch-screen electronic equipment, is specifically related to a kind of touch human-computer interaction device that can distinguish multiple point touching and operate simultaneously.
Background technology
At present, touch technology is 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.At home on the market, along with the enhancing of domestic touch-screen manufacturing development ability, the raising of computer utility ability and the progress of display technique, industry experts has been developed various suitable personalized purposes and has been possessed permanance and the touch-screen of reliability.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 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.
But the ubiquitous problem of these touch screen is some touches precision, insufficient sensitivity height, and the high touch-screen manufacturing process complexity of precision, cost is very high again, only is fit to undersized application.Therefore, provide a kind of high sensitivity, high precision does not limit the giant-screen multiplex touch control equipment of size extremely important.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, and a kind of giant-screen multiplex touch control equipment is provided, and this equipment 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 adopts following technical scheme:
A kind of giant-screen multiplex touch control equipment comprises transparent touch panel, the soft curtain of projection, projector equipment, infrared laser, infrared image acquiring equipment.Four drift angle tops of rectangular transparent touch panel are symmetrically arranged with infrared laser, and the back side of transparent touch panel is attached with the soft curtain of the projection identical with the transparent touch panel area; The below of the soft curtain of projection is provided with many infrared image capture devices of cover and projector equipment, and all projector equipments are connected with the output end signal of controller, and all infrared image acquiring equipment are connected with the input end signal of controller.Infrared image acquiring equipment comprises infrared camera and is positioned at the visible light filter plate of infrared camera front.
Described transparent touch panel is a kind of in glass, organic glass, the acrylic plate.
Described infrared laser emergence angle is α, 90 °≤α≤130 °.
The beneficial effect that the utility model had: pass through image processing techniques, realized high sensitivity, high precision, be not subjected to the function of size restriction, this device energy and user are mutual accurately in real time, and have 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;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
As illustrated in fig. 1 and 2, a kind of giant-screen multiplex touch control equipment comprises transparent touch panel 1, the soft curtain 3 of projection, projector equipment 6, infrared laser 2, infrared image acquiring equipment.1 four drift angles of rectangular transparent touch panel top is symmetrically arranged with the laser that 2, four infrared lasers 2 of infrared laser send can cover whole transparent touch panel 1, and the back side of transparent touch panel 1 is attached with the soft curtain 3 of projection that area is identical with it; The below of the soft curtain 3 of projection is provided with the two infrared image capture devices of cover and 6, two projector equipments 6 of projector equipment are connected with the output end signal of controller 7, and two infrared image acquiring equipment are connected with the input end signal of controller 7.Infrared image acquiring equipment comprises infrared camera 5 and is positioned at the visible light filter plate 4 of infrared camera front.Transparent touch panel 1 is a glass in the present embodiment, and the infrared laser emergence angle is 100 °.
The course of work of the present utility model is: open infrared laser, with linear infrared laser parallel be radiated at the touch panel surface, make its surface coverage that the infrared photosphere of layer of even be arranged.Each infrared image acquiring equipment gather touch panel each regional when contactless initial pictures and be spliced into view picture touch pad picture image by controller.The user carries out touch action on touch panel, contact portion is illuminated by the infrared light on surface.Each infrared image acquiring equipment is the real-time images acquired of touch pad area to being responsible for separately respectively, and will touch image data transmission to controller; Controller becomes complete picture to the image mosaic of each collection, and current touch image and initial pictures subtracted each other the rejecting background, obtain producing several zones of dim spot, then the denoising point is carried out in these zones, increase contrast, corrode expansion process, obtain the zone of a plurality of regular shape at last according to specific threshold value, these a plurality of 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, judge the area and the touch point die-out time of this touch point moving direction, touch point, analyze user's touch intention in view of the above; During user's multiple point touching, if newly-increased touch point is arranged, then accession designation number and tracking are carried out in this touch point, position relation between each touch point of real-time analysis, if there is the touch point to disappear, then nullify this touch point, 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.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 by certain protocol then.Controller is divided into a plurality of parts with the display frame of application program and is presented at respectively on the soft curtain of projection of touch panel lower surface by many projector equipments, feeds back to the user.
Claims (3)
1. giant-screen multiplex touch control equipment, comprise transparent touch panel, the soft curtain of projection, projector equipment, infrared laser, infrared image acquiring equipment, it is characterized in that: four drift angle tops of rectangular transparent touch panel are symmetrically arranged with infrared laser, and the back side of transparent touch panel is attached with the soft curtain of the projection identical with the transparent touch panel area; The below of the soft curtain of projection is provided with many infrared image capture devices of cover and projector equipment, and all projector equipments are connected with the output end signal of controller, and all infrared image acquiring equipment are connected with the input end signal of controller; Infrared image acquiring equipment comprises infrared camera and is positioned at the visible light filter plate of infrared camera front.
2. a kind of giant-screen multiplex touch control equipment according to claim 1 is characterized in that: described transparent touch panel is a kind of in glass, organic glass, the acrylic plate.
3. a kind of giant-screen multiplex touch control equipment according to claim 1, it is characterized in that: described infrared laser emergence angle is α, 90 °≤α≤130 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200497577U CN201556191U (en) | 2010-01-12 | 2010-01-12 | Big screen multiple touch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200497577U CN201556191U (en) | 2010-01-12 | 2010-01-12 | Big screen multiple touch control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556191U true CN201556191U (en) | 2010-08-18 |
Family
ID=42615879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200497577U Expired - Fee Related CN201556191U (en) | 2010-01-12 | 2010-01-12 | Big screen multiple touch control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033145A (en) * | 2013-01-08 | 2013-04-10 | 天津锋时互动科技有限公司 | Method and system for identifying shapes of plurality of objects |
| CN104486604A (en) * | 2014-12-30 | 2015-04-01 | 湖南巨手科技发展有限公司 | Touch screen projection display device |
-
2010
- 2010-01-12 CN CN2010200497577U patent/CN201556191U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033145A (en) * | 2013-01-08 | 2013-04-10 | 天津锋时互动科技有限公司 | Method and system for identifying shapes of plurality of objects |
| CN103033145B (en) * | 2013-01-08 | 2015-09-02 | 天津锋时互动科技有限公司 | For identifying the method and system of the shape of multiple object |
| CN104486604A (en) * | 2014-12-30 | 2015-04-01 | 湖南巨手科技发展有限公司 | Touch screen projection display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202189336U (en) | Capture system for capturing and processing handwritten annotation data and capture equipment therefor | |
| CN105183257B (en) | Touch screen and pressure touch detection method thereof | |
| CN105224126B (en) | Touch screen and pressure touch detection method therefor | |
| CN201247458Y (en) | Display device with double-mode input function | |
| CN2567694Y (en) | Touch control display screen with conductor lattice electromagnetic induction layer in it | |
| CN201331752Y (en) | Multi-point touching human-machine interaction apparatus | |
| CN103294319A (en) | Capacitive touch screen | |
| CN101847057A (en) | Method for touchpad to acquire input information | |
| CN204904244U (en) | Contact screen | |
| CN203950284U (en) | A kind of curved surface touch screen with flexible touch membrane | |
| CN102163100A (en) | Contact positioning method and device for electronic touch screen | |
| CN201556191U (en) | Big screen multiple touch control device | |
| CN102645997B (en) | Touch control panel and touch point distinguishing method of touch control panel | |
| CN201383135Y (en) | Multiple touch control interactive device | |
| CN201548929U (en) | Touch system | |
| CN203606780U (en) | Multi-touch and gesture recognition fusion system | |
| CN203324956U (en) | Capacitive touch screen | |
| CN102541447A (en) | System and method for realizing three-dimensional drawing based on touch terminal | |
| CN201084128Y (en) | Image positioning touching device | |
| CN204331693U (en) | A kind of projecting type capacitor touch screen | |
| CN202275386U (en) | Novel touch screen | |
| CN103838416A (en) | Manufacturing method for touch screen module, touch screen module and digital product | |
| CN204367070U (en) | A kind of conductive film for touch screen full automatically punching device | |
| CN201845446U (en) | Electronic book reader | |
| CN201965589U (en) | Novel multipoint man-machine interaction device |
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: 20100818 Termination date: 20130112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |