CN201796348U - Touch screen adopting wireless way for transmitting data - Google Patents
Touch screen adopting wireless way for transmitting data Download PDFInfo
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- CN201796348U CN201796348U CN2010202901086U CN201020290108U CN201796348U CN 201796348 U CN201796348 U CN 201796348U CN 2010202901086 U CN2010202901086 U CN 2010202901086U CN 201020290108 U CN201020290108 U CN 201020290108U CN 201796348 U CN201796348 U CN 201796348U
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Abstract
The utility model discloses a touch screen adopting the wireless way for transmitting data and relates to a touch screen. The touch screen adopting the wireless way for transmitting data comprises a touch sensing system and a communication system, wherein the communication system is a communication system adopting a wireless communication mode; the communication system further comprises a signal conversion module for converting a touch signal responded by the touch sensing system to a wireless communication signal, and the communication system further comprises a wireless communication module. During the specific using process, a touch point is generated on the touch screen, the touch sensing system responds out a corresponding electrical signal, the electrical signal is converted to a signal which is suitable for transmission of the wireless communication system through the signal conversion module, and then the communication with a computer is carried out. Information received by the computer can be processed through software, thereby completing the response to the touch point. With the design, original hardware does not need to be mounted for driving a circuit system any longer, a connecting wire is not needed and the requirement on the expansibility of a main board of the computer does not exist any longer.
Description
Technical field
The utility model relates to computer realm, is specifically related to a kind of touch-screen.
Background technology
Existing touch-screen and computing machine ways of connecting are connected to computer motherboard by a hardware driving Circuits System often.This just needs computing machine itself to have the position of the described hardware driving Circuits System of grafting, that is to say that existing touch-screen mostly to computer motherboard requirement to some extent, does not have extensive applicability.
The utility model content
The purpose of this utility model is to provide a kind of touch-screen that adopts wireless mode transmission data, to solve the problems of the technologies described above.
The utility model is by the following technical solutions for achieving the above object:
Adopt the touch-screen of wireless mode transmission data to comprise touch-sensing system, communication system, it is characterized in that, described communication system is for adopting the communication system of wireless communications mode, described communication system comprises that also one is used for the touch signal of described touch-sensing system response is converted to the signal conversion module of wireless communication signals, and described communication system also comprises a wireless communication module.Be connected to computing machine by described wireless communication module.Described communication system can be the communication system of an employing infrared communication pattern, and described wireless communication module is an infrared communication module.Described communication system can also be the communication system of an employing bluetooth communication mode, and described wireless communication module is a bluetooth communication.Described communication system can also be a communication system that communicates by means of wireless network, and described wireless communication module is a wireless communication terminal.
In the concrete use, when producing the touch point on touch-screen, touch-sensing system responds out corresponding electric signal, and electric signal is converted to the signal that is suitable for the wireless communication system transmission by described signal conversion module, and then communicates with computing machine.The information that computing machine receives can be handled by software, and then finishes the response to the touch point.This design no longer needs to install original hardware driving Circuits System, and does not need connecting line, not in the extendability requirement to some extent to computer motherboard.Described computing machine can be mobile phone, computer, perhaps other smart machines.
Touch-sensing system comprises an image collection disposal system, and described image collection disposal system comprises that one is used to obtain the image collecting module of touch pad place image information, and described image collecting module comprises at least two image collection devices;
At least two described image collection devices connect at least two described signal conversion module respectively, and at least two described signal conversion module are connected to a wireless coupler module, connect a wireless communication module by described wireless coupler module.Wireless coupler module merges multiple signals.
By above-mentioned design at least two image collection devices are inserted computing machine by a wireless communication module.So that the simplification mode of connection.
Described touch-sensing system can also be other conventional touch-sensing systems, as infrared type, resistance-type, condenser type, ultrasonic type etc.
Described at least two image collection devices lay respectively at the touch pad avris.The image collection device can be a camera.
Described image collection device connects the image information processing module that image information that a pair of described image collection device obtains is handled, and connects described signal conversion module by described image information processing module.So that computer data is handled.
The image at least two image collection device picked-up touch pad places generates image information.Comprise coherent video in the image information, coherent video is meant the image information that the image relevant with touch operation presents.After described computing machine receives described image information, analyze the information of coherent video, and the relevant touch operation information of generation, pass through communication system, touch operation information is sent to the external world, as send to host computer, in machine processor system etc., finish touch operation, promptly the touch operation of optical touch screen is to utilize associated picture to finish.
The touch-screen of described employing wireless mode transmission data, obtain respectively by described at least two image collection devices, the coherent video that includes the positional information of associated picture, the positional information of the associated picture that comprises in the coherent video that described at least two image collection devices is obtained by described computing machine is carried out integration processing again, obtain coherent video positional information accurately, the coherent video positional information is as finishing one of information of touch operation.
By the two-dimensional coordinate information that includes imaging object in the experience image that the image collection device obtains as can be known, contain the two-dimensional coordinate information of imaging object in the photo of breaking forth such as camera.The coherent video of the associated picture at the touch pad place that obtains with an image collection device that is arranged in the touch pad avris includes the one dimension coordinate information of associated picture position.Described at least two image collection devices, obtain at least two coherent videos relevant with associated picture, at least two one dimension coordinate informations that comprise the associated picture position at least two coherent videos, described computing machine obtains the information of two-dimensional coordinate at least of associated picture position by at least two one dimension coordinate informations are integrated.
In two coherent videos for two image collection devices acquisitions, two one dimension coordinate informations that include the associated picture position, by two one dimension coordinate informations are integrated, can obtain the two-dimensional coordinate information of associated picture position, promptly can determine the two-dimensional coordinate information of associated picture at the touch pad place.Still can obtain coherent video positional information accurately when therefore the image collection device being placed on the screen avris, use for finishing touch operation.
Increase image collection device number and can obtain more coherent video, help to improve the precision of associated picture positional information, help to enlarge the touch pad area.
Touch pad generally is positioned at the place ahead of screen, perhaps directly uses screen as touch pad, and the touch pad in the utility model allows not have screen independently to exist, such as can being an independently glass plate, or mural painting etc.In the above-mentioned design image collection device is placed the touch pad avris, can guarantee that the image collection device neither can take up room, and can not influence the visual effect of screen again more.In the existing image interactive technology, wherein in the projection interaction technique of widespread use, also be to adopt particularly, the mode that obtains image information by the image collection device realizes image interactive or touch operation, and what the image collection device adopted is camera.But camera can not be placed on the screen avris according to existing image interactive technology, otherwise can't obtain image position information accurately, influence work.
Obtain accurately that the method for image position information can be, at first utilize first image collection device to obtain the angular relationship between associated picture and described first image collection device on touch pad; Utilize second image collection device to obtain the angular relationship between associated picture and described second image collection device on the touch pad again; Computing machine is integrated the associated picture angular relationship of first image collection device acquisition and the associated picture angular relationship of second image collection device acquisition, thereby obtains the position of associated picture at the touch pad place.Described image collection device can be a camera, or other image modalities.Described angular relationship is presented as the position of coherent video on the sensitive chip of image collection device that associated picture presents.
When determining the angular relationship between image collection device and associated picture, allow to select various reference object, the direction of collection image that for example can select the image collection device is as first reference object, a bit is considered as reference point with on the image collection device certain again, as second reference object.
A straight line as boost line draws to described reference point in autocorrelogram picture place, and the angle between the direction of the collection image of described boost line and described image collection device is as the angle between described image collection device and associated picture.Above content keypoint is to illustrate operation logic of the present utility model, and irrelevant with the selection of above-mentioned reference point in the actual motion, concrete angular relationship is embodied in the position of coherent video on sensitive chip.
The touch-screen of described employing wireless mode transmission data comprises two image collection devices, is respectively the first image collection device and the second image collection device; The first image collection device and the second image collection device lay respectively at the upper left side and the upper right side of touch pad.Design can reduce when carrying out touch operation like this, and when particularly short range touched, operating personnel's health or other objects blocked the light of associated picture.
Touch pad can be that the front portion is the touch pad of transparent medium, and described image collection device is positioned at described transparent medium side, obtains the associated picture information in the touch pad transparent front medium.When having luminous point or other associated pictures to be presented on the transparent touch pad, the light signal of luminous point or other associated pictures not only can reflect, also transmission can take place, and then enter in the touch pad transparent front medium, and in transparent medium, propagate, can acquisition and luminous point or the relevant image information of other associated pictures from the transparent medium side.Anterior for the touch pad of transparent medium (touch pad that also comprises whole clearing naturally) can be the preceding cover plate of display, also can be indicator screen.
In the above-mentioned design, the image collection device is positioned at described transparent medium side, obtain the associated picture information of transparent medium inside, therefore can be in same plane with touch pad, even can directly be embedded in transparent medium inside, the propagation of light signal can not be subjected to blocking of external object, thus the image collection device that the position is set is comparatively flexible.
Because the luminous point at touch pad place or other associated pictures, and the variable in distance scope between the image collection device is bigger, so the image collection device can be provided with a focal length self-checking device of regulating described image collection device focal length automatically, so that obtain image more clearly.The focusing multiple can be used as the parameter of determining the associated picture positional information.
The focusing lens of described image collection device adopts the liquid focusing lens, so that adjust focal length accurately, flexibly.
Described image collection device the place ahead is provided with a filtering device, and filtering device is provided with a printing opacity mouth, and described printing opacity mouth allows the light on the plane parallel with described indicator screen at described printing opacity mouth place to enter, and weakens the light of other directions.So that confirm clearly to touch face as far as possible.
The printing opacity mouth of described filtering device can be the fine strip shape structure with degree of depth of being pressed from both sides by two light-shielding structures.
Described image collection device the place ahead is provided with the fender of area greater than the camera lens area.Perhaps state image collection device the place ahead and be provided with the fender of area greater than described printing opacity open area.To improve the oil rub resistance ability.
Adopt the touch-screen of wireless mode transmission data also to comprise a light source.The touch pad front portion is a transparent medium, and the light that described light source produces is radiated at the front more uniformly to be had on the touch pad of transparent medium, and to the transmission of touch pad exterior front.
Light source is radiated on the touch pad more uniformly from the touch pad back side or side, and to the transmission uniformly of the touch pad outside.Touch part with one and touch touch pad, touch the irradiation that part is subjected to the light of light source, form luminous point.Described touch part is meant the object that touches touch pad, can be finger, pen etc.Luminous point is with touching moving of part, by the moving of luminous point, luminous point have or not and the information such as flicker frequency of luminous point realize touching part transmits the touch-screen of data to the employing wireless mode touch operation.When the touch part contacted with touch pad, the light that the image collection device of side receives was particularly strong.
The utility model and image interactive technology all need to gather image information, and analyze, some point of crossing of technical existence.Technical measures in some image interactives can be applied to the utility model, such as technical measures such as background eliminations.The background elimination system or the background elimination software that are used to eliminate background information can be housed in the utility model.Utilize background elimination system or background to eliminate software and can eliminate background information, so that obtain coherent video information accurately.
In addition as shown in the above, the touch-screen of employing wireless mode in the utility model transmission data utilizes optical principle to determine the position of associated picture, and has or not greasy dirt irrelevant on the power of luminous point light intensity, the touch pad.Antijamming capability is strong, be not afraid of greasy dirt, is applicable to the heavier occasions of greasy dirt such as factory floor, mining area.Touch part in the use and do not contact, so long service life with the electron device of the touch-screen that adopts wireless mode transmission data itself.Touch pad can adopt the original parts of display, does not take up room.
For the situation that adopts luminous point as associated picture, can be provided with the frequency-selecting module, background is eliminated system, so it is wide not to be subject to light intensity influence, the temperature applicable range of luminous point.Be easy to the touch-screen of realizing that area is very big.
Description of drawings
Fig. 1 is for adopting the touch screen circuitry structural representation of wireless mode transmission data;
Fig. 2 transmits the image collection device arrangement synoptic diagram of the touch-screen of data for adopting wireless mode;
Fig. 3 determines the principle schematic of coherent video position for optical touch screen;
Fig. 4 is for adopting the touch-screen and the user mode synoptic diagram that touches part of wireless mode transmission data;
Fig. 5 is a kind of opticator structural representation of image collection device;
Fig. 6 is the structural representation of the touch-screen of the employing wireless mode transmission data of band light source.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
See figures.1.and.2, adopt the touch-screen of wireless mode transmission data mainly to comprise touch-sensing system, communication system.Communication system is for adopting the communication system of wireless communications mode.Communication system comprises that one is used for the touch signal of touch-sensing system response is converted to the signal conversion module of wireless communication signals, and communication system also comprises a wireless communication module.Be connected to computing machine by wireless communication module.In the concrete use, when producing the touch point on touch-screen, touch-sensing system responds out corresponding electric signal, and electric signal is converted to the signal that is suitable for the wireless communication system transmission by signal conversion module, and then communicates with computing machine.The information that computing machine receives can be handled by software, and then finishes the response to the touch point.Computing machine can be mobile phone, computer, perhaps other smart machines.Communication system can be the communication system of an employing infrared communication pattern, and wireless communication module is an infrared communication module.Communication system can also be the communication system of an employing bluetooth communication mode, and wireless communication module is a bluetooth communication.Communication system can also be a communication system that communicates by means of wireless network, and wireless communication module is a wireless communication terminal.
Touch-sensing system comprises an image collection disposal system.The image collection disposal system comprises that one is used to obtain the image collecting module of touch pad 11 place's image informations.Image collecting module comprises at least two image collection devices, at least two image collection devices connect at least two signal conversion module respectively, at least two signal conversion module are connected to a wireless coupler module, connect a wireless communication module by wireless coupler module.Wireless coupler module merges multiple signals.Touch-sensing system can also be other conventional touch-sensing systems, as infrared type, resistance-type, condenser type, ultrasonic type etc.
At least two image collection devices lay respectively at touch pad 11 avris.The image collection device can be a camera.The image collection device connects the image information processing module that image information that a pair of image collection device obtains is handled, and connects signal conversion module by the image information processing module.The image at least two image collection device picked-up touch pad 11 places generates image information.What should be noted that the collection of image collection device is the image at touch pad 11 places, can be the image on touch pad 11 surfaces, but might not only be the image on touch pad 11 surfaces, even can not gather the image on touch pad 11 surfaces.Comprise coherent video in the image information, coherent video is meant the image information that the image relevant with touch operation presents.After computing machine receives image information, analyze the information of coherent video, and the relevant touch operation information of generation, pass through communication system, touch operation information is sent to the external world, as send to host computer, handset processes device system etc., and finish touch operation, promptly the touch operation of optical touch screen is to utilize associated picture to finish.
Adopt the touch-screen of wireless mode transmission data, obtain respectively by at least two image collection devices, the coherent video that includes the positional information of associated picture, the positional information of the associated picture that will at least two comprises in the coherent video that obtains of image collection devices by computing machine is carried out integration processing again, obtain coherent video positional information accurately, the coherent video positional information is as finishing one of information of touch operation.With two image collection devices is example, in two coherent videos for two image collection devices acquisitions, two one dimension coordinate informations that include the associated picture position, by two one dimension coordinate informations are integrated, can obtain the two-dimensional coordinate information of associated picture position, promptly can determine the two-dimensional coordinate information of associated picture at touch pad 11 places.Still can obtain coherent video positional information accurately when therefore the image collection device being placed on the screen avris, use for finishing touch operation.Increase image collection device number and can obtain more coherent video, help to improve the precision of associated picture positional information, help to enlarge touch pad 11 areas.
With reference to Fig. 2 and Fig. 3, touch pad 11 generally is positioned at the place ahead of screen, perhaps directly uses screen as touch pad.Touch pad 11 in the utility model allows not have screen independently to exist, such as can being an independently glass plate, or mural painting etc. Image collection device 2211,2212 etc. is placed touch pad 11 avris, can guarantee image collection device 2211,2212 etc., neither can take up room more, can not influence the visual effect of screen display again.The utility model is compared with existing image interactive technology, need realize image interactive or touch operation by the mode of image collection device acquisition image information equally, and what the image collection device adopted is camera.But existing image interactive technology and the camera as the image collection device can not be placed on screen (touch pad 11) avris, otherwise can't obtain image position information accurately, can influence work.The technical program is different with existing image interactive technology, is to position by the position to associated picture such as at least two image collection devices 2211,2212.
By the single as can be known image collection device of experience, include the two-dimensional coordinate information of imaging object in the image information as acquisitions such as image collection device 2211, image collection devices 2212, contain the two-dimensional coordinate information of imaging object in the photo of breaking forth such as camera.The one dimension coordinate information that also includes the associated picture position with the coherent video of the associated picture at an image collection device 2211 that is arranged in touch pad 11 avris or 2212 touch pad 11 places that obtain.Be provided with at least two image collection devices 2211,2212 in the utility model, therefore two one dimension coordinate informations that include the associated picture position in two coherent videos that obtain, by two one dimension coordinate informations are integrated, can obtain the two-dimensional coordinate information of associated picture position, promptly can determine the two-dimensional coordinate information of associated picture at touch pad 11 places.Therefore still can obtain associated picture positional information accurately when image collection device 2211,2212 etc. being placed on the screen avris, for finishing the touch operation use.In any case two image collection devices 2211,2212 are arranged, the probability that two one dimension coordinates of the associated picture that obtains are identical is all very little, almost can think does not have, therefore can not consider, as long as two image collection devices 2211,2212 obtain the coherent video of an associated picture simultaneously, can determine the coordinate of associated picture, improper meeting causes accurate inadequately that the associated picture coordinate position determines but two image collection devices 2211,2212 are arranged.Increase image collection device number in addition and can obtain more coherent video, help to improve the precision of associated picture positional information, also help to enlarge touch pad 11 areas.
With two image collection devices, the i.e. first image collection device and the second image collection device, and upper left side and upper right side that the first image collection device and the second image collection device lay respectively at touch pad 11 are example, obtain accurately that the method for image position information can be, at first utilize first image collection device 2211 to obtain the angular relationship of 2211 of touch pad 11 place's associated pictures and first image collection devices; Utilize second image collection device 2212 to obtain the angular relationship of 2212 of associated picture on the touch pads 11 and second image collection devices again; The image information processing module is integrated the associated picture angular relationship of first image collection device 2211 acquisitions and the associated picture angular relationship of second image collection device 2212 acquisition, thereby obtains the position of associated picture at touch pad 11 places.First image collection device 2211 and second image collection device 2212 can be prior camera, or other image modalities.Angular relationship can be presented as, the position of the coherent video that associated picture presents on the sensitive chip 32 of image collection device.
Determine image collection device 2211 or 2212 and associated picture between angular relationship the time, allow to select various reference object, the direction of collection image that for example can select image collection device 2211 or 2212 is as first reference object, a bit be considered as reference point with on the image collection device certain again, as second reference object.A straight line as boost line draws to described reference point in autocorrelogram picture place, and the angle between the direction of the collection image of described boost line and described image collection device is as the angle between described image collection device and associated picture.Above content keypoint is to illustrate operation logic of the present utility model, and irrelevant with the selection of above-mentioned reference point in the actual motion, concrete angular relationship is embodied in the position of coherent video on sensitive chip 32.
Further specify the method that positional information in the coherent video is carried out integration processing with reference to Fig. 3.The index path that image collection device 2211,2212 obtains touch pad 11 place's light signals has been shown among Fig. 3.With image collection device 2211 is example, and image collection device 2211 comprises convex lens 31, a sensitive chip 32.There are associated picture a, b, c, d in touch pad 11 places.Associated picture a, b, c, d present picture point a1, b1, c1, d1 respectively on sensitive chip 32.
According to the convex lens image-forming principle as can be known: touch pad 11 places are positioned at a and all can present picture point at the a1 place with relevant picture point on the a1 line; Be positioned at b and all can present picture point at the b1 place with relevant picture point on the b1 line; Be positioned at c and all can present picture point at the c1 place with relevant picture point on the c1 line, the relevant picture point on the touch pad 11 corresponds on the sensitive chip 32 by that analogy, thereby obtains the one dimension image information about touch pad 11 places.As seen embody the angular relationship that has between image collection device 2211 and associated picture in this one dimension image information.
In like manner, associated picture a, b, c, d present picture point a2, b2, c2, d2 respectively on sensitive chip 33, and the relevant picture point on the touch pad 11 corresponds on the sensitive chip 33 by that analogy, thereby obtain the one dimension image information about touch pad 11 places.This one dimension image information embodies the angular relationship that has between image collection device 2211 and associated picture.The characteristic of above-mentioned each bar line is definite by the optical characteristics of convex lens, not necessarily straight line.
The utility model can determine that by picture point a1 on the sensitive chip 32 and the picture point a2 on the sensitive chip 33 associated picture is positioned at a place; By the picture point b2 on picture point b1 on the sensitive chip 32 and the sensitive chip 33, can determine that associated picture is positioned at the b place; By the picture point c2 on picture point c1 on the sensitive chip 32 and the sensitive chip 33, can determine that associated picture is positioned at the c place, by that analogy, as seen can determine the position of the associated picture at touch pad 11 places by two image collection devices 2211,2212.
Shall also be noted that image collection device 2211,2212 etc. can obtain the one dimension image information, but might not be only to obtain the one dimension image information.The information of other dimensions that obtain also has a lot of purposes for the utility model.
As seen from the above technical solution, when there was a plurality of associated picture in touch pad 11 places, each associated picture can be respectively by receptions such as image collection devices 2211,2212, and what interference each associated picture does not have basically.Therefore the utility model can well be realized multi-touch.Realize multi-touch based on the utility model, focus on the software aspect, do not do detailed description.
As the luminous point of associated picture, emphasis is presented as planar structure, and the image collection device as image collection device 2211,2212, can not adopt camera, and adopts simpler structure.With reference to Fig. 5, be example with image collection device 2211, comprise convex lens 31 and sensitive chip 32.Sensitive chip 32 is provided with a large amount of pixels 321.Pixel 321 can be the pixel of strip, and pixel 321 is single arrangement on sensitive chip 32.Can reduce the number of pixel 321 like this, reduce the operand of system.
What the image collection disposal system needed is that the one dimension positional information of the picture point of luminous point 6 on sensitive chip 32 do not have direct relation with the picture point readability.Therefore image collection device 2211 can dispense some image processing circuits and image processing program with respect to camera.
Image collection disposal system even can be reduced to following structure, with reference to Fig. 5, a large amount of pixels on the sensitive chip 32, be a large amount of photodiode structure or phototriode structures, a large amount of pixels connects a scrambler, by scrambler the signal on the pixel is encoded, export to the image information processing module behind the generation correlative coding.Pixel adopts photodiode structure or phototriode structure, helps to improve response speed.In order to reduce the operand of scrambler, pixel can be connected into an array structure earlier, be connected to scrambler.Based on the response speed of photodiode, phototriode, said structure allows signal frequency-selecting module to choose higher frequency-selecting frequency.
Because there is a dimensioning in coherent video, the picture point that presents is not to be presented on the pixel of sensitive chip 32 probably, but be presented on a plurality of pixels, the pixel of choosing the centre in a plurality of pixels that picture point is presented on that can try one's best by software is as effective pixel.The processing of this problem has obtained solving preferably in the image interactive technology, and concrete settling mode can comparatively directly be used for reference.In order to make being presented on the less pixel that picture point tries one's best, and then reduce operand, increase light signal strength, in addition, because the luminous point at touch pad 11 places or other associated pictures, and the variable in distance scope between the image collection device is bigger, and image collection device 2211,2212 etc. can be provided with an automatic focal length self-checking device of regulating image collection device focal length.The focusing multiple of focal length self-checking device can be used as the corrected parameter of determining the associated picture position.Concrete modification method, the personnel that are engaged in optical research can draw formula more easily, therefore no longer describe in detail.The focusing multiple can be used as the parameter of determining the associated picture positional information.The focusing lens of image collection device can adopt the liquid focusing lens, so that adjust focal length accurately, flexibly.
For the ease of confirming clearly to touch face.Image collection device the place ahead is provided with a filtering device, and filtering device is provided with a printing opacity mouth, and the printing opacity mouth allows the light on the plane parallel with indicator screen at described printing opacity mouth place to enter, and weakens the light of other directions.The printing opacity mouth of filtering device can be the fine strip shape structure with degree of depth of being pressed from both sides by two light-shielding structures.
In order to improve the oil rub resistance ability, image collection device the place ahead is provided with the fender of area greater than the camera lens area.Perhaps image collection device the place ahead is provided with the fender of area greater than the printing opacity open area.
With reference to Fig. 4 and Fig. 6, adopt the touch-screen of wireless mode transmission data also to comprise a light source 91, touch pad 11 is the touch pad of transparent medium for the place ahead.The light that light source 91 sends is radiated on the touch pad 11 more uniformly, to touch pad 11 the place ahead transmissions.When touching part 5 touch touch pads 11, be subjected to the irradiation of the light of light source 91 ejaculations, form luminous point 6.Touching part 5 and be meant the object that touches touch pad 11, can be finger, pen etc.Part 5 and 6 brightness of touch pad 11 position contacting luminous points are the strongest touching.Optical touch screen with this luminous point 6 as associated picture.Luminous point 6 is with touching moving of part 5, by the moving of luminous point 6, luminous point 6 have or not and the information such as flicker frequency of luminous point 6 realize touching the touch operation that 5 pairs of employings of part wireless mode transmits the touch-screen of data.
In order to improve reliability and sensitivity, light source 91 is provided with a signal generating module, and signal generating module has specific one or more oscillation frequency, and driving light source 91 sends the light signal with the certain frequency flicker.Reload signal frequency-selecting module in the image collection disposal system.The frequency-selecting frequency of signal frequency-selecting module and the oscillation frequency of signal generating module adapt.Thereby make the uncorrelated light signal of image collection disposal system filtering, improve sensitivity relative light signal.
For the situation that adopts luminous point 6 as associated picture because can be provided with the frequency-selecting module, background is eliminated system, so it is wide not to be subject to light intensity influence, the temperature applicable range of luminous point 6.Be easy to the touch-screen of realizing that area is very big.Touch-screen for large-scale employing wireless mode transmission data, can use a plurality of image collection devices 2211,2212, form the touch-screen that a plurality of small-sized employing wireless modes transmit data, the touch-screen that then a plurality of small-sized employing wireless modes is transmitted data is integrated into the touch-screen of large-scale employing wireless mode transmission data by hardware or software.
The utility model and image interactive technology all need to gather image information, and analyze, some point of crossing of technical existence.Technical measures in some image interactives can be applied to the utility model, such as technical measures such as background eliminations.The background elimination system or the background elimination software that are used to eliminate background information can be housed in the utility model.Utilize background elimination system or background to eliminate software and can eliminate background information, so that obtain coherent video information accurately.
In addition as shown in the above, the touch-screen of employing wireless mode in the utility model transmission data utilizes optical principle to determine the position of associated picture, and has or not greasy dirt irrelevant on the power of luminous point 6 light intensity, the touch pad.Antijamming capability is strong, be not afraid of greasy dirt, is applicable to the heavier occasions of greasy dirt such as factory floor, mining area.Touch part in the use and do not contact, so long service life with the electron device of the touch-screen that adopts wireless mode transmission data itself.Touch pad can adopt the original parts of display, does not take up room.Touch pad can adopt the reception screen of projection display system.Help improving the dirigibility of touch-screen assembling.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not subjected to the restriction of above-mentioned using method; that describes in above-mentioned using method and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. adopt the touch-screen of wireless mode transmission data, comprise touch-sensing system, communication system, it is characterized in that, described communication system is for adopting the communication system of wireless communications mode;
Described communication system comprises that also one is used for the touch signal of described touch-sensing system response is converted to the signal conversion module of wireless communication signals, and described communication system also comprises a wireless communication module.
2. the touch-screen of employing wireless mode transmission data according to claim 1 is characterized in that, described communication system is the communication system of an employing infrared communication pattern, and described wireless communication module is an infrared communication module.
3. the touch-screen of employing wireless mode transmission data according to claim 1 is characterized in that described communication system is the communication system of an employing bluetooth communication mode, and described wireless communication module is a bluetooth communication.
4. the touch-screen of employing wireless mode according to claim 1 transmission data is characterized in that, described communication system is a communication system that communicates by means of wireless network, and described wireless communication module is a wireless communication terminal.
5. transmit the touch-screen of data according to any described employing wireless mode in the claim 1 to 4, it is characterized in that, described touch-sensing system comprises an image collection disposal system, described image collection disposal system comprises that one is used to obtain the image collecting module of touch pad place image information, and described image collecting module comprises at least two image collection devices;
At least two described image collection devices connect at least two described signal conversion module respectively, and at least two described signal conversion module are connected to a wireless coupler module, connect a wireless communication module by described wireless coupler module.
6. the touch-screen of employing wireless mode transmission data according to claim 5, it is characterized in that, described touch-sensing system is conventional touch-sensing system, and described conventional touch-sensing system is infrared type touch-sensing system, resistive touch sensor-based system, capacitance touch sensor-based system or ultrasonic type touch-sensing system.
7. the touch-screen of employing wireless mode transmission data according to claim 5 is characterized in that described image collection device is a camera.
8. the touch-screen of employing wireless mode transmission data according to claim 7 is characterized in that, the touch-screen of described employing wireless mode transmission data comprises two cameras, lays respectively at the upper left side and the upper right side of touch pad.
9. the touch-screen of employing wireless mode transmission data according to claim 7, it is characterized in that, described camera the place ahead is provided with a filtering device, and described filtering device is provided with one and allows the light on the plane parallel with described indicator screen at place to enter and weaken the printing opacity mouth of the light of other direction;
The fine strip shape structure with degree of depth of the printing opacity mouth of described filtering device for pressing from both sides by two light-shielding structures.
10. the touch-screen of employing wireless mode transmission data according to claim 1 is characterized in that the touch pad of described touch-sensing system adopts the reception screen of projection display system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202901086U CN201796348U (en) | 2010-08-12 | 2010-08-12 | Touch screen adopting wireless way for transmitting data |
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| CN2010202901086U CN201796348U (en) | 2010-08-12 | 2010-08-12 | Touch screen adopting wireless way for transmitting data |
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| CN201796348U true CN201796348U (en) | 2011-04-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111751A (en) * | 2014-04-25 | 2014-10-22 | 苏州太游信息科技有限公司 | Unidirectional information transmission method, touch extension system and multi-point touch equipment |
| CN104111795A (en) * | 2014-04-25 | 2014-10-22 | 苏州太游信息科技有限公司 | Bidirectional information transmission method, touch extension system and multi-point touch bidirectional extension equipment |
| CN104813694A (en) * | 2012-11-23 | 2015-07-29 | 聚集股份有限公司 | Data transmission apparatus for recording visit data of wireless communication device |
| CN105743576A (en) * | 2016-01-29 | 2016-07-06 | 浪潮(北京)电子信息产业有限公司 | Server |
-
2010
- 2010-08-12 CN CN2010202901086U patent/CN201796348U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104813694A (en) * | 2012-11-23 | 2015-07-29 | 聚集股份有限公司 | Data transmission apparatus for recording visit data of wireless communication device |
| CN104111751A (en) * | 2014-04-25 | 2014-10-22 | 苏州太游信息科技有限公司 | Unidirectional information transmission method, touch extension system and multi-point touch equipment |
| CN104111795A (en) * | 2014-04-25 | 2014-10-22 | 苏州太游信息科技有限公司 | Bidirectional information transmission method, touch extension system and multi-point touch bidirectional extension equipment |
| CN105743576A (en) * | 2016-01-29 | 2016-07-06 | 浪潮(北京)电子信息产业有限公司 | Server |
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