CN103713779A - Non-contact touch device and implementation method thereof - Google Patents
Non-contact touch device and implementation method thereof Download PDFInfo
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- CN103713779A CN103713779A CN201310752770.7A CN201310752770A CN103713779A CN 103713779 A CN103713779 A CN 103713779A CN 201310752770 A CN201310752770 A CN 201310752770A CN 103713779 A CN103713779 A CN 103713779A
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Abstract
The invention relates to the field of touch display, and discloses a non-contact touch device and an implementation method thereof. The non-contact touch device is suitable for large-scale display equipment. According to the technical scheme, the non-contact touch device is arranged on the display equipment and comprises a laser scanning distance measurement instrument and a signal processing module used for formatting the scanned hand position and analyzing and processing touch events, the laser scanning distance measurement instrument is connected with the signal processing module, and the signal processing module is connected with the display equipment. According to the non-contact touch device and the implementation method thereof, the laser scanning distance measurement instrument is utilized for identifying identification points, and the touch requirement of non-contact touch can be met. The non-contact touch device is simple in structure and convenient to install, and the user experience is good.
Description
Technical field
The present invention relates to touch-control and show field, particularly a kind of non-contact type touch control device and its implementation.
Background technology
Traditional main flow touch technology is mainly resistance-type, infrared-type, ultrasonic type, condenser type, CCV technology etc., in operation, all need to use finger contact display device surface to carry out touch control operation, on the display device of the miniature dimensions of 3 cun～15 cun, experience sense is better, because moving range is little, moveable finger carries out various touch control operations very easily.
But while operating on large-scale display device surfaces such as large area LED screen or mosaic screens, because touch area is larger, finger moving range increases, and simultaneously because viewing distance increases, display frame, over the visual field, is given the sense of discomfort that causes user.
And various main flow touch technologies are to production and installation requirement and higher.
Assistant officer waits to occur a kind of touch technology that is suitable for large-scale display device.
Summary of the invention
A kind of non-contact type touch control device and its implementation that the present invention proposes, its object is to provide a kind of non-contact type touch control device that is suitable for large-scale display device.
Technical scheme of the present invention is achieved in that a kind of non-contact type touch control device, be arranged on display device, comprise laser scanning and ranging instrument and for the hand position scanning being formatd and resolved, processes the signal processing module of touch-control event; Described laser scanning and ranging instrument connects signal processing module, and described signal processing module connects display device.
Further, described signal processing module comprises TUIO protocol element.
Further, described signal processing module also comprises touch-control event handling unit.
Further, described touch-control event handling unit connects display device.
Optimally, described laser scanning and ranging instrument is the laser scanning and ranging instrument that comprises rotary optical parts.
An implementation method for non-contact type touch control device, comprises the following steps: laser scanner scans direction scans; Identification point detected, and obtain identification point relatively and angle and the distance of scan origin, and be translated into the coordinate points under rectangular coordinate system; The TUIO protocol element of signal processing module is converted to screen coordinate point by the rectangular coordinate point obtaining, and screen coordinate point is converted to the relative coordinate of value between 0～1 again, and it is encoded, and by UDP serve port, sends; The touch-control event handling unit of described signal processing module carries out dissection process to the TUIO message receiving by UDP serve port; Touch-control event handling unit resolves result is controlled display device.
A kind of non-contact type touch control device provided by the invention and its implementation, disclose a kind of laser scanning and ranging instrument that utilizes identification point identified, and to be suitable for the needs of large-scale display device non-contact type touch control, simple in structure, easy for installation, user experiences.
Embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A non-contact type touch control device, is arranged on display device, comprises laser scanning and ranging instrument and for the hand position scanning being formatd and resolved, processes the signal processing module of touch-control event; Described laser scanning and ranging instrument connects signal processing module, and described signal processing module connects display device.Further, described signal processing module comprises TUIO protocol element.Further, described signal processing module also comprises touch-control event handling unit.Further, described touch-control event handling unit connects display device.Optimally, described laser scanning and ranging instrument is the laser scanning and ranging instrument that comprises rotary optical parts.
An implementation method for non-contact type touch control device, comprises the following steps: laser scanner scans direction scans; Identification point detected, and obtain identification point relatively and angle and the distance of scan origin, and be translated into the coordinate points under rectangular coordinate system; The TUIO protocol element of signal processing module is converted to screen coordinate point by the rectangular coordinate point obtaining, and screen coordinate point is converted to the relative coordinate of value between 0～1 again, and it is encoded, and by UDP serve port, sends; The touch-control event handling unit of described signal processing module carries out dissection process to the TUIO message receiving by UDP serve port; Touch-control event handling unit resolves result is controlled display device.
Non-contact type touch control device of the present invention, be arranged on large-scale display device, comprise laser scanning and ranging instrument, TUIO protocol element, touch-control event handling unit, the rotary optical parts of laser scanning and ranging instrument scan user, by TUIO protocol element, the position of user's hand is identified and encoded, and being sent to touch-control event handling unit, touch-control event handling unit carries out dissection process to TUIO message, controls display device.
Described laser scanning and ranging instrument is based on laser distance measuring principle, to utilize time flight theory to carry out a kind of instrument of other information such as the size of measuring workpieces and shape, optics transmitting by rotation forms two-dimentional scanning plane, with feasible region scanner uni profile measurement function.Be mainly used in range determination, direction distinguishing, outward appearance scanning, environment and the work such as distinguish.
Above-mentioned identification point relatively with the angle of scan origin and two coordinate ρ and θ apart from being same as in polar coordinates, can be converted to by formula below the coordinate figure under rectangular coordinate system: x=ρ cos θ y=ρ sin θ, consider interactive operation feature, only calculate the identification point of 0～180 degree angular range.
TUIO agreement be one for can touch the open architecture that multiple spot surface has defined standard agreement and application programming interface.Allow the transmission of the abstractdesription on digitizer surface, for example transmission touches and the state that contacts object.This agreement is to following the tracks of application person's control data encoding and it being sent to any client application that can decode.
A kind of non-contact type touch control device provided by the invention and its implementation, disclose a kind of laser scanning and ranging instrument that utilizes identification point identified, and to be suitable for the needs of large-scale display device non-contact type touch control, simple in structure, easy for installation, user experiences.
Certainly; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art should make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (6)
1. a non-contact type touch control device, is arranged on display device, it is characterized in that: comprise laser scanning and ranging instrument and for the hand position scanning being formatd and resolved, processes the signal processing module of touch-control event; Described laser scanning and ranging instrument connects signal processing module, and described signal processing module connects display device.
2. a kind of non-contact type touch control device according to claim 1, is characterized in that: described signal processing module comprises TUIO protocol element.
3. a kind of non-contact type touch control device according to claim 1 and 2, is characterized in that: described signal processing module also comprises touch-control event handling unit.
4. a kind of non-contact type touch control device according to claim 3, is characterized in that: described touch-control event handling unit connects display device.
5. according to a kind of non-contact type touch control device described in any one in claim 1,2,4, it is characterized in that: described laser scanning and ranging instrument is the laser scanning and ranging instrument that comprises rotary optical parts.
6. an implementation method for non-contact type touch control device, is characterized in that: comprise the following steps:
Laser scanner scans direction scans;
Identification point detected, and obtain identification point relatively and angle and the distance of scan origin, and be translated into the coordinate points under rectangular coordinate system;
The TUIO protocol element of signal processing module is converted to screen coordinate point by the rectangular coordinate point obtaining, and screen coordinate point is converted to the relative coordinate of value between 0～1 again, and it is encoded, and by UDP serve port, sends;
The touch-control event handling unit of described signal processing module carries out dissection process to the TUIO message receiving by UDP serve port;
Touch-control event handling unit resolves result is controlled display device.
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| CN201310752770.7A CN103713779A (en) | 2013-12-31 | 2013-12-31 | Non-contact touch device and implementation method thereof |
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| CN201310752770.7A CN103713779A (en) | 2013-12-31 | 2013-12-31 | Non-contact touch device and implementation method thereof |
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Cited By (4)
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| CN105094306A (en) * | 2014-05-23 | 2015-11-25 | 陈正涛 | Interactive shop window based on laser scanning rangefinder and implementation method thereof |
| CN105700748A (en) * | 2016-01-13 | 2016-06-22 | 北京京东尚科信息技术有限公司 | Touch control processing method and device |
| CN108334247A (en) * | 2018-01-29 | 2018-07-27 | 宁波视睿迪光电有限公司 | Signal picker and working method applied to display device |
| CN109240502A (en) * | 2018-09-20 | 2019-01-18 | 江苏电力信息技术有限公司 | A kind of gesture identification method adapting to a variety of touch manners automatically |
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| CN109240502B (en) * | 2018-09-20 | 2021-06-29 | 江苏电力信息技术有限公司 | Gesture recognition method capable of automatically adapting to multiple touch modes |
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Owner name: CHENGDU GOLDFINGER CROSSYOUR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHENGDU CROSSYOUR TECHNOLOGY CO., LTD. Effective date: 20150215 |
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Effective date of registration: 20150215 Address after: 610000, No. 11, No. 6, No. 599, No. 1102 South City Road, Chengdu hi tech Development Zone, Sichuan Applicant after: CHENGDU GOLDFINGER CROSSYOUR INTERACTIVE TECHNOLOGY CO., LTD. Address before: 610000, No. 11, No. 6, No. 599, No. 1104 South City Road, Chengdu hi tech Development Zone, Sichuan Applicant before: CHENGDU CROSSYOUR SCIENCE & TECHNOLOGY CO., LTD. |
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Application publication date: 20140409 |