CN101776971B - Multi-point touch screen device and positioning method - Google Patents
Multi-point touch screen device and positioning method Download PDFInfo
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- CN101776971B CN101776971B CN2009100581193A CN200910058119A CN101776971B CN 101776971 B CN101776971 B CN 101776971B CN 2009100581193 A CN2009100581193 A CN 2009100581193A CN 200910058119 A CN200910058119 A CN 200910058119A CN 101776971 B CN101776971 B CN 101776971B
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Abstract
The invention discloses a device for realizing multi-point touch and a positioning method, which aims to provide a device and a method for supporting multi-point touch and article recognition. The device comprises a transparent touch screen made of special materials, an infrared light band, a projection soft screen, an infrared camera, an infrared band-pass filter, a projector and a computer. The infrared light band irradiates infrared light into the touch screen from the periphery, and nanoparticles in the touch screen reflect the infrared light outward; when fingers or objects are close to the touch screen, the camera can capture infrared bright spots or regions and transfer images to the computer; the computer analyzes and processes the images, recognizes touch events and calls corresponding procedures and commands to generate new images; and then, the new images are projected on the projection soft screen through the projector, thereby realizing operation of multi-point touch or recognition of articles.
Description
Technical field
The present invention relates to a kind of multi-point touch screen device electronic equipment, this equipment can be distinguished one or more touch point, and can position this one or more touch point.
Background technology
Touching technique is extensive use of in various electronic equipments, being used for operating electronic equipment realizes various functions. in computer application system, touch input and played the function that alternative keyboard and mouse are imported control, make operating process more directly perceived. usually, touch-screen comprises a transparent touch pad that covers the display screen viewing area, controller and corresponding driving software, touch pad is caught touch event, and touch signal is sent to controller, controller is handled signal, then touch event and touch position data are passed to computing machine, computing machine makes an explanation to touch event and makes feedback to this touch event.
Common touching technique has at present: condenser type, resistance-type, ultrasonic type, echelette formula etc. in capacitive technology, touch screen surface covers the hyaline membrane of one deck energy store charge, when touch event took place, the electric charge of touch point can change, by measuring the position that electric charge can determine that touch event takes place; In the technology of resistance-type, there is the layer of transparent conducting film on the surface of touch pad, the transparent resistance tunic that has level and vertical electrode that also has layer of transparent, when touch event is arranged, this two-layer corresponding position can come in contact, by applying voltage in level and vertical direction, obtain representing the voltage output of touch location, measure this voltage and just can obtain position encoded accordingly; It is right by in level and vertical direction infrared receiving/transmission LED being set that echelette touches technology, form crossed grating, when having touch event to take place, some grating is blocked, cause some LED not receive Infrared, just can determine the occurrence positions of touch event by the conducting situation of measuring the infrared reception LED of horizontal and vertical position. judge the problem of touch event occurrence positions when these technology all can not well solve a plurality of touch events and take place simultaneously at present.
In addition, several multiple point touching technology are also arranged at present: wherein a kind of is condenser type, by increasing the lead-in wire of each little capacitor cell on the touch pad, the capacitance variations of each capacitor cell on the senses touch plate then, realize taking place simultaneously on the touch pad but touch event, and each touch event is carried out location determination at diverse location; Another is a condenser type, be by increasing the number of leads of each strain unit on the touch pad equally, judge the position of touch event by the resistance variations of measuring each strain unit. at present, these two kinds of technology only are applicable to undersized touch-screen, if realize the multiple point touching of giant-screen with these present technology, the manufacture difficulty of touch pad is big, the complexity height of control circuit. except that above two kinds of technology, also has a kind of technology, this technology is used the characteristic of the total internal reflection of materials such as acryl, by the infrared LED light belt is set around touch pad, in infrared light irradiation entrance pressure gram force panel, when having touch event to take place, the total internal reflection characteristic of touch pad is destroyed, the touch location place has infrared ray and is reflected, at this moment, infrared camera as for the touch pad below captures the infrared ray that is reflected, then, the picture that camera captures is sent to computer, computer touches image, determine touch point position. the making of this technology and more complicated is set, need the LED light belt, also to be coated with last layer silica gel uniformly on the touch pad, and, touch event needs certain touching intensity and just can take place, and when the pressure of objects such as finger is not enough, occurs the situation that can't judge or disappear in the touch point easily.
In view of the limitation of above-mentioned prior art, provide a kind of large-sized multi-point touch screen technology and localization method can supported to seem very necessary.
Summary of the invention
First purpose of the present invention provides a kind of multi-point touch screen device.
Second purpose of the present invention provides a kind of method of using the multi-point touch screen device realization multiple point touching in first target.
The 3rd purpose of the present invention provides a kind of by bar code on the identify objects, thus the multi-point touch screen device that realization is discerned article.
The 4th purpose of the present invention provides a kind of multi-point touch screen device that can discern bar code that uses in the 3rd purpose, realizes the identification of object and the method for location.
The 5th purpose of the present invention provides a kind of super large touch panel device that uses the touch panel device in first purpose to be spliced.
The 6th purpose of the present invention provides super large touch panel device in the 5th purpose of a kind of use, realizes the method for multiple point touching point and article identification.
In order to realize above-mentioned first purpose, can adopt following technical scheme, this scheme comprises:
A transparent touch-sensitive panel, its material is a kind of special acrylic, the inside has been covered with nano level reflective particles, people's naked eyes can't be seen, when infrared light is come in from four side-irradiations of touch-screen, can be reflected uniformly by reflective particles, allow the monoblock touch-screen become an infrared even tabula rasa;
Article four, infrared light belt, place touch-screen around;
The soft curtain of projection is as for the touch-screen below;
An infrared camera is positioned at the soft curtain of touch-screen and projection below, and can photographs whole touch screen;
The logical filter of infrared band, place infrared camera before, be used to filter surround lighting;
A projector, this projector are positioned at the below of touch-screen and the soft curtain of projection, are used for to the soft curtain of projection projects images;
A computing machine, be used to receive the picture that infrared camera captures, and the image that receives analyzed and handle, judge touch event and position thereof, and touch event analyzed and handle, identify each touch event, and call corresponding program and order, generate new image and then the image after handling is passed to projector.
Infrared camera is caught the image of touch screen zone, and an image that captures is passed to computing machine, computing machine is analyzed and is handled these images, the position of identification touch event and generation, and touch event analyzed and handles, then the image after handling by projector projects to the soft curtain of projection.
In order to realize above-mentioned second purpose, can adopt following localization method, this method comprises the image of catching the whole touch screen zone with infrared camera, and image is analyzed and handled, the identification touch point; This method also comprises carries out record to the different coordinate positions constantly in each touch point; This method also comprises the different comparisons of coordinate position constantly to each touch point, discerns the movement locus and the direction of each touch point.
The present invention realizes that the method for multiple point touching location mainly may further comprise the steps:
(1) starts infrared light belt, projector, infrared camera and computing machine;
(2) projector with the image projection of computing machine to the soft curtain of projection;
(3) infrared camera catch touch screen zone image and pass to computing machine;
(4) computing machine is analyzed and is handled image, identifies to touch input, and the coordinate position of each touch point is carried out record;
(5) computing machine is made feedback to the touch event that identifies, and calls corresponding program and order, generates new image and passes to projector;
(6) projector with image projection to the soft curtain of projection;
(7) infrared camera is caught the image of touch screen zone, and image is passed to computing machine;
(8) computing machine is analyzed and is handled image, identify and touch input, and the coordinate position of each touch point is carried out record, then new coordinate position and the coordinate position that writes down are before compared, define several touch points, and identify the movement locus and the direction of touch point;
(9) repeating step (5)-(8) begin new circulation.
Adopt multi-point touch screen device of the present invention and multi-point touch locating method, touch panel device just can identify a plurality of touch input points simultaneously, and multiple point touching is achieved; On this basis, computing machine compares the variation of its coordinate position by the recording and tracking to each different touch points, obtains the motion path and the direction of each touch point, realizes the action recognition to the touch point.We can carry out different definition to different actions, realize different functions.Such as, two touch points are arranged, one of them is fixed, and another one moves in a circle around fixing touch point, then can be defined as rotary manipulation, realizes the rotation to picture; Two touch points, towards opposite direction motion, the distance between them is increasing, then may be defined as amplifieroperation, realizes the amplification to picture separately.We can carry out flexible definition to different actions according to actual needs, to satisfy actual needs.
For realizing the 3rd purpose of the present invention, can adopt following technical scheme, this scheme comprises:
A transparent touch-sensitive panel, its material is a kind of special acrylic, the inside has been covered with nano level reflective particles, people's naked eyes can't be seen, when infrared light is come in from four side-irradiations of touch-screen, can be reflected uniformly by reflective particles, allow the monoblock touch-screen become an infrared even tabula rasa;
Article four, infrared light belt, place touch-screen around;
The soft curtain of projection is as for the touch-screen below;
An infrared camera is positioned at the soft curtain of touch-screen and projection below, and can photographs whole touch screen;
The logical filter of infrared band, place infrared camera before, be used to filter surround lighting;
A projector, this projector are positioned at the back side of touch-screen and the soft curtain of projection, are used for to the soft curtain projection of projection image;
Various bar code is attached to the article bottom, is used for the different article of mark;
A computing machine is used to receive the picture that camera captures, and handles image, and the identification bar code also calls corresponding program and order, generates new images then.
Infrared camera captures the image of touch screen zone, and image passed to computing machine, computing machine is analyzed and is handled these images, identify bar code and position thereof, then, computing machine calls corresponding program and order to according to different bar codes, generate new image, then with image by projector projects to the soft curtain of projection.
For realizing above-mentioned the 4th purpose, can adopt following method, bar code is attached to the article bottom, then article are placed on the touch-screen, infrared camera captures the image of touch screen zone and image is passed to computing machine, and computing machine is analyzed and handled image, identify bar code and article position on the article, according to the corresponding relation of bar code that pre-sets and article, realize identification to article, call corresponding program and order then.
The present invention realizes the method for article identification and location mainly be may further comprise the steps:
(1) starts infrared light belt, projector, infrared camera and computing machine;
(2) projector with the image projection of computing machine to the soft curtain of projection;
(3) article that the bottom posted bar code are placed on the touch-screen;
(4) infrared camera catch touch screen zone image and pass to computing machine;
(5) computing machine is analyzed and is handled image, identifies bar code and article position on the article;
(6) computing machine is finished the identification to article, and is called corresponding program and order according to the bar code that pre-sets and the corresponding relation data of article, generates new image and passes to projector;
(7) repeating step (2)-(6) begin new circulation;
For realizing above-mentioned the 5th purpose, can be by the following technical solutions, this scheme comprises:
A super large transparent touch-sensitive panel, its material is a kind of special acrylic, the inside has been covered with nano level reflective particles, people's naked eyes can't be seen, when infrared light is come in from four side-irradiations of touch-screen, can be reflected uniformly by reflective particles, allow the monoblock touch-screen become an infrared even tabula rasa;
Article four, infrared light belt, place touch-screen around;
The soft curtain of super-large projection is as for the touch-screen below;
A plurality of infrared cameras are positioned at the soft curtain below of super large touch-screen and super-large projection, and each infrared camera is caught a zone of super large touch-screen, all infrared cameras add together just in time can be seamless the whole super large touch screen zone of seizure;
The infrared band of polylith leads to filter, place each infrared camera before, be used to filter surround lighting;
Many projector, each projector is the respective regions of image projection to the soft curtain of super-large projection, and all projector are worked together, just in time can be with seamless the projecting on the soft curtain of whole super-large projection of image;
A computing machine, be used to receive the picture that each infrared camera captures, and be spliced into a complete picture, then spliced image is analyzed and handled, judge touch event and position thereof, and touch event is analyzed and handled, generate new image then, and image cut apart, the image after will cutting apart is then passed to each corresponding projector respectively.
Each infrared camera is caught the image of corresponding region separately, and image passed to computing machine, computing machine splices these images, then spliced image is analyzed and handled, identify touch event and position thereof, and call corresponding program and order, generate new image, and image cut apart, pass to the respective projection instrument then, each projector image projection to the soft curtain of projection of corresponding region separately.
For realizing above-mentioned the 6th purpose, can adopt following method, this method comprises the image of catching corresponding separately super large touch screen zone with a plurality of infrared cameras, then image is passed to computing machine; Computing machine splices the image that each infrared camera captures, and analyzes then and handles, and identifies touch event and position thereof, simultaneously the different coordinate positions constantly of touch event is carried out record; This method comprises that also computing machine carries out dividing processing to the image that generates, and passes to the respective projection instrument; This method comprises that also the coordinate positions to the different moment of each touch point compare, and discern the movement locus and the direction of each touch point; This method can also realize identification and the location to the article that post bar code simultaneously.
The present invention realizes that the method for super large multi-point touch screen device multiple point touching location mainly may further comprise the steps:
(1) starts infrared light belt, each projector, each infrared camera and computing machine;
(2) each projector is with the zone of image projection to the soft curtain of each self-corresponding super-large projection;
(3) each infrared camera is passed to computing machine with the image that captures;
(4) computing machine splices the image that each infrared camera transmits;
(5) computing machine is analyzed and is handled spliced image, identifies to touch input, and the coordinate position of each touch point is carried out record;
(6) computing machine is made feedback to the touch event that identifies, and calls corresponding program and order, generates new image;
(7) computing machine is cut apart image, and passes to each projector;
(8) each projector is with the respective regions of image projection to the soft curtain of super-large projection;
(9) each infrared camera is caught the image of corresponding region separately, and passes to computing machine;
(10) computing machine splices the image that each camera transmits;
(11) computing machine is analyzed and is handled spliced image, identify and touch input, and the coordinate position of each touch point carried out record, then new coordinate position and the coordinate position that writes down are before compared, define several touch points, and identify the movement locus and the direction of touch point;
(12) repeating step (6)-(11) begin new circulation.
Adopt super large multi-point touch screen device of the present invention and multi-point touch locating method, the super large touch-screen just can identify a plurality of touch input points simultaneously, and super large touch-screen multiple point touching is achieved; On this basis, computing machine compares the variation of its coordinate position by the recording and tracking to each different touch points, obtains the motion path and the direction of each touch point, realizes the action recognition to the touch point.We can carry out different definition to different actions, realize different functions.Such as, two touch points are arranged, one of them is fixed, and another one moves in a circle around fixing touch point, then can be defined as rotary manipulation, realizes the rotation to picture; Two touch points, towards opposite direction motion, the distance between them is increasing, then may be defined as amplifieroperation, realizes the amplification to picture separately.We can carry out flexible definition to different actions according to actual needs, to satisfy actual needs.In addition, by at article bottom joint strip font code, can also discern article.
Description of drawings
Fig. 1 is one of multi-point touch screen device embodiment synoptic diagram among the present invention.
Fig. 2 is that principle is caught in the touch point of installing among Fig. 1.
Fig. 3 is the original image of the touch input that captures of the infrared camera that installs among Fig. 1.
Fig. 4 is that the original image among Fig. 3 passes through the touch input point that obtains after Computer Analysis and the processing.
Fig. 5 is the process flow diagram of the method for realization multiple point touching embodiment illustrated in fig. 1.
Fig. 6 is the synoptic diagram of the another one embodiment of multi-point touch screen device among the present invention.
Fig. 7 is the bar code synoptic diagram among the embodiment shown in Figure 6.
Fig. 8 is the article synoptic diagram that sticks bar code among the embodiment shown in Figure 6.
Fig. 9 is the synoptic diagram when article are placed on the touch-screen among the embodiment shown in Figure 6.
Figure 10 is the synoptic diagram of the touch screen areas area image that camera captures among the embodiment shown in Figure 6.
Figure 11 is the process flow diagram that embodiment shown in Figure 6 realizes article identification.
Figure 12 is the structural representation according to the splicing of the device in embodiment illustrated in fig. 1 super large touch-screen.
Figure 13 is the process flow diagram that super large touch-screen shown in Figure 12 is realized the method for multiple point touching.
Embodiment
Fig. 1 is the structural representation of one of multi-point touch screen device of the present invention embodiment, and this device comprises a transparent touch-sensitive panel 2, and its material is special acrylic, and there are many nano level reflective particles the inside, energy reflects infrared light, polishing around this touch-screen; Article four, infrared light belt 1, this infrared light belt can send the infrared light of 850 nanometers; The soft curtain 3 of projection is affixed on touch-screen 2 belows, is used to receive projector 4 and projects image; An infrared camera 5 places the soft curtain of touch-screen 2 and projection 3 belows, and can take the image in whole touch screen 3 zones fully, and image is passed to computing machine 7; The logical filter 6 of infrared band owing to filter 850 nanometers light in addition, prevents to produce and disturbs; A computing machine 7 is used to receive and handle the image of infrared camera 5, and handles, and identifies touch event and position thereof, and generates new image, then image is passed to projector 4; A projector 4 is used for the image projection of computing machine 7 to the soft curtain 3 of projection.
Fig. 2 is that embodiment 1 realizes the principle schematic that touch event is caught.The finger reflection is captured (as shown in Figure 3) by infrared camera 5, and image is passed to computing machine 7 from the infrared light that touch-screen 2 scatters out, and 7 pairs of images of computing machine are analyzed and handled, and identify touch event and position thereof (as shown in Figure 4).
Fig. 5 is the process flow diagram that multipoint touching device is realized the method for multiple point touching among the embodiment 1.
When a plurality of finger touch during to touch-screen 2, infrared camera 5 captures the image (as shown in Figure 3) on the touch-screen, and image passed to computing machine 7,7 pairs of original images of computing machine are analyzed and are handled, obtain touch point as shown in Figure 4, and these touch points are write down and followed the trail of, call corresponding program and order then, effect with touch event and generation projects on the soft curtain 3 of projection by projector 4 again, thereby realizes multiple point touching.
Fig. 6 is second embodiment synoptic diagram of multi-point touch screen device of the present invention.This device comprises a transparent touch-sensitive panel 2, and its material is special acrylic, and there are many nano level reflective particles the inside, energy reflects infrared light, polishing around this touch-screen; Article four, infrared light belt 1, this infrared light belt can send the infrared light of 850 nanometers; The soft curtain 3 of projection is affixed on touch-screen 2 belows, is used to receive projector 4 and projects image; An infrared camera 5 places the soft curtain of touch-screen 2 and projection 3 belows, and can take the image in whole touch screen 3 zones fully, and image is passed to computing machine 7; The logical filter 6 of infrared band and since filter 850 nanometers with UV light, prevent to produce and disturb; A computing machine 7 is used to receive and handle the image of infrared camera 5, and handles, and identifies bar code 9 and position thereof, calls corresponding program and order, and generates new image, then image is passed to projector 4; A projector 4 is used for the image projection of computing machine 7 to the soft curtain 3 of projection.Various bar code 9 (as shown in Figure 7) is attached to the bottom of article 8, is used to distinguish different article.One or more article 8, bottom post bar code 9 (as shown in Figure 8).
When the article 8 that post bar code 9 are placed on the touch-screen 2 (as shown in Figure 9), infrared camera 5 is passed to computing machine 7 with the image that captures, computing machine 7 is analyzed and is handled these images, obtain image as shown in figure 10, thereby identify bar code 9, and definite its position, then according to the bar code that pre-sets and the data of article corresponding relation, call corresponding program and order, generate new image, project on the soft curtain 3 of projection by projector 4, like this, just realized identification article.
Figure 11 is the process flow diagram that present embodiment is realized article identification.
Present embodiment can not only be discerned bar code 9, can also discern other dissimilar images, in actual applications, can carry out design of patterns as required.
Figure 12 is that the present invention utilizes the multipoint touching device shown in the embodiment 1, utilizes splicing to realize the structural representation of super large touch-screen.This device comprises a super large transparent touch-sensitive panel 2, and its material is special acrylic, and there are many nano level reflective particles the inside, energy reflects infrared light, polishing around this touch-screen; Article four, infrared light belt 1, this infrared light belt can send the infrared light of 850 nanometers; The soft curtain 3 of super-large projection is affixed on touch-screen 2 belows, is used to receive projector 4 and projects image; A plurality of infrared cameras 5 place the soft curtain of touch-screen 2 and projection 3 belows, and a plurality of infrared cameras 5 just in time can be taken the image in whole super large touch-screen 3 zones together fully, and image is passed to computing machine 7; The infrared band of polylith leads to filter 6, place the camera lens of each infrared camera 5 respectively before owing to filter light beyond 850 nanometers, prevent to produce and disturb; A computing machine 7 is used to receive and handle the image of each infrared camera 5, and splices and handle, and identifies touch event and position thereof, and generates new image, then head portrait is cut apart, and image is passed to projector 4 again; Many projector 4 are used for the image projection of computing machine 7 to the soft curtain 3 of super-large projection of corresponding region separately.
When having touch event to take place, each infrared camera 5 is caught the image in whole super large touch-screen 2 zones, and pass to computing machine 7 respectively, computing machine 7 splices these images, analyze then and handle, identify touch event and position thereof, and call corresponding program and order, generate new image, again image is cut apart, pass to each projector 4 respectively, image projection after projector 4 will be cut apart is to the soft curtain 3 of super-large projection, and seamlessly be spliced into a complete picture, like this, just realized the multiple point touching of super large screen.
Figure 13 is the process flow diagram that the oversize multi-point touch panel is realized the method for multiple point touching in the present embodiment.
Theoretically, the technical scheme of utilizing present embodiment to adopt can realize infinitely-great multi-point touch screen device.
Simultaneously, the super large touch panel device of present embodiment can be realized the identification to object as embodiment 2 equally.
Claims (6)
1. multi-point touch screen device, its feature comprises:
A transparent touch-sensitive panel, its material is a kind of special acrylic, the inside has been covered with nano level reflective particles, people's naked eyes can't be seen, when infrared light is come in from four side-irradiations of touch-screen, can be reflected uniformly by reflective particles, allow the monoblock touch-screen become an infrared even tabula rasa;
Article four, infrared light belt, place touch-screen around;
The soft curtain of projection is as for the touch-screen below;
An infrared camera is positioned at the soft curtain of touch-screen and projection below, and can photographs whole touch screen;
The logical filter of infrared band, place infrared camera before, be used to filter surround lighting;
A projector, this projector are positioned at the back side of touch-screen and the soft curtain of projection, are used for to the soft curtain projection of projection image;
A computing machine, be used to receive the image that camera captures, and the image that receives carried out Flame Image Process, judge touch event and position thereof, and touch event analyzed and handle, identify each touch event, and call corresponding program and order, generate new image and then the image after handling is passed to projector;
Infrared camera is caught the image of touch screen zone, and an image that captures is passed to computing machine, computing machine is analyzed and is handled these images, the position of identification touch event and generation, and touch event analyzed and handles, then the image after handling by projector projects to the soft curtain of projection.
2. multi-point touch screen device, its feature comprises:
A transparent touch-sensitive panel, its material is a kind of special acrylic, the inside has been covered with nano level reflective particles, people's naked eyes can't be seen, when infrared light is come in from four side-irradiations of touch-screen, can be reflected uniformly by reflective particles, allow the monoblock touch-screen become an infrared even tabula rasa;
Article four, infrared light belt, place touch-screen around;
The soft curtain of projection is as for the touch-screen below;
An infrared camera is positioned at the soft curtain of touch-screen and projection below, and can photographs whole touch screen;
The logical filter of infrared band, place infrared camera before, be used to filter surround lighting;
A projector, this projector are positioned at the back side of touch-screen and the soft curtain of projection, are used for to the soft curtain projection of projection image;
Various bar code is attached to the article bottom, is used for the different article of mark;
A computing machine is used to receive the image that camera captures, and handles image, and the identification bar code also calls corresponding program and order, generates new images then;
Infrared camera captures the image of touch screen zone, and image passed to computing machine, computing machine is analyzed and is handled these images, identify bar code and position thereof, then, computing machine calls corresponding program and order to according to different bar codes, generate new image, then with image by projector projects to the soft curtain of projection.
3. multi-point touch screen device, its feature comprises:
A super large transparent touch-sensitive panel, its material is a kind of special acrylic, the inside has been covered with nano level reflective particles, people's naked eyes can't be seen, when infrared light is come in from four side-irradiations of touch-screen, can be reflected uniformly by reflective particles, allow the monoblock touch-screen become an infrared even tabula rasa;
Article four, infrared light belt, place touch-screen around;
The soft curtain of super-large projection is as for the touch-screen below;
A plurality of infrared cameras are positioned at the soft curtain below of super large touch-screen and super-large projection, and each infrared camera is caught a zone of super large touch-screen, all infrared cameras add together just in time can be seamless the whole super large touch screen zone of seizure;
The infrared band of polylith leads to filter, place each infrared camera before, be used to filter surround lighting;
Many projector, each projector is the respective regions of image projection to the soft curtain of super-large projection, and all projector are worked together, just in time can be with seamless the projecting on the soft curtain of whole super-large projection of image;
A computing machine, be used to receive the image that each infrared camera captures, and be spliced into a complete image, then spliced image is analyzed and handled, judge touch event and position thereof, and touch event is analyzed and handled, generate new image then, and image cut apart, the image after will cutting apart is then passed to each corresponding projector respectively;
Each infrared camera is caught the image of corresponding region separately, and image passed to computing machine, computing machine splices these images, then spliced image is analyzed and handled, identify touch event and position thereof, again these touch events are analyzed and handled, identify each touch event, and call corresponding program and order, generate new image, and image cut apart, pass to the respective projection instrument then, each projector image projection to the soft curtain of projection of corresponding region separately.
4. one kind is used the described multi-point touch screen device of claim 1 to realize the multiple point touching point methods, it is characterized in that comprising following steps:
(1) starts infrared light belt, projector, infrared camera and computing machine;
(2) projector with the image projection of computing machine to the soft curtain of projection;
(3) infrared camera catch touch screen zone image and pass to computing machine;
(4) computing machine is analyzed and is handled image, identifies to touch input, and the coordinate position of each touch point is carried out record;
(5) computing machine is made feedback to the touch event that identifies, and calls corresponding program and order, generates new image and passes to projector;
(6) projector with image projection to the soft curtain of projection;
(7) infrared camera is caught the image of touch screen zone, and image is passed to computing machine;
(8) computing machine is analyzed and is handled image, identify and touch input, and the coordinate position of each touch point is carried out record, then new coordinate position and the coordinate position that writes down are before compared, define several touch points, and identify the movement locus and the direction of touch point;
(9) repeating step (5)-(8) begin new circulation.
5. one kind is used the described multi-point touch screen device of claim 2 to realize the identification of article and the method for location be is characterized in that comprising following steps:
(1) starts infrared light belt, projector, infrared camera and computing machine;
(2) projector with the image projection of computing machine to the soft curtain of projection;
(3) article that the bottom posted bar code are placed on the touch-screen;
(4) infrared camera catch touch screen zone image and pass to computing machine;
(5) computing machine is analyzed and is handled image, identifies bar code and article position on the article;
(6) computing machine is finished the identification to article, and is called corresponding program and order according to the bar code that pre-sets and the corresponding relation data of article, generates new image and passes to projector;
(7) repeating step (2)-(6) begin new circulation.
6. one kind is used the described multi-point touch screen device of claim 3 to realize super large multi-point touch panel multiple point touching point methods, it is characterized in that comprising following steps:
(1) starts infrared light belt, each projector, each infrared camera and computing machine;
(2) each projector is with the zone of image projection to the soft curtain of each self-corresponding super-large projection;
(3) each infrared camera is passed to computing machine with the image that captures;
(4) computing machine splices the image that each infrared camera transmits;
(5) computing machine is analyzed and is handled spliced image, identifies to touch input, and the coordinate position of each touch point is carried out record;
(6) computing machine is made feedback to the touch event that identifies, and calls corresponding program and order, generates new image;
(7) computing machine is cut apart image, and passes to each projector;
(8) each projector is with the respective regions of image projection to the soft curtain of super-large projection;
(9) each infrared camera is caught the image of corresponding region separately, and passes to computing machine;
(10) computing machine splices the image that each camera transmits;
(11) computing machine is analyzed and is handled spliced image, identify and touch input, and the coordinate position of each touch point carried out record, then new coordinate position and the coordinate position that writes down are before compared, define several touch points, and identify the movement locus and the direction of touch point;
(12) repeating step (6)-(11) begin new circulation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100581193A CN101776971B (en) | 2009-01-10 | 2009-01-10 | Multi-point touch screen device and positioning method |
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| CN2009100581193A CN101776971B (en) | 2009-01-10 | 2009-01-10 | Multi-point touch screen device and positioning method |
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| CN101776971A CN101776971A (en) | 2010-07-14 |
| CN101776971B true CN101776971B (en) | 2011-11-16 |
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| CN101950221A (en) * | 2010-09-07 | 2011-01-19 | 陈龙 | Multi-touch device based on sphere display and multi-touch method thereof |
| TWI467427B (en) * | 2011-10-07 | 2015-01-01 | Young Optics Inc | Touch display apparatus |
| KR101885216B1 (en) * | 2011-12-30 | 2018-08-30 | 삼성전자주식회사 | Multi touch segmentation method in a touch sensing system |
| CN103383609A (en) * | 2012-05-02 | 2013-11-06 | 师涛 | Multi-camera synchronous tracking method for touch screen |
| CN103383611A (en) * | 2012-05-02 | 2013-11-06 | 北京通世舟数字科技有限责任公司 | Multi-point touch interaction splicing method |
| CN105320364B (en) * | 2014-11-11 | 2018-07-31 | 扬州永利宁科技有限公司 | A kind of body-sensing multi-point touch control apparatus |
| CN106372558B (en) * | 2016-09-21 | 2019-03-22 | 讯飞幻境(北京)科技有限公司 | A kind of the capture identifying system and method for Marker information coding |
| CN110069198B (en) * | 2019-03-11 | 2021-01-05 | 清华大学 | User interaction platform and user interaction information identification display method |
| CN113301315B (en) * | 2021-04-30 | 2023-04-07 | 广西佳微科技股份有限公司 | Projection system based on infrared touch screen frame |
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| CN1918532A (en) * | 2003-12-09 | 2007-02-21 | 雷阿卡特瑞克斯系统公司 | Interactive video window display system |
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