CN103631382A - Laser projection virtual keyboard - Google Patents
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- CN103631382A CN103631382A CN201310718675.5A CN201310718675A CN103631382A CN 103631382 A CN103631382 A CN 103631382A CN 201310718675 A CN201310718675 A CN 201310718675A CN 103631382 A CN103631382 A CN 103631382A
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Abstract
The invention discloses a laser projection virtual keyboard which comprises three parts including a keyboard image projection module, an infrared image acquisition and processing module and an infrared laser locating system, wherein the keyboard image projection module transmits an optical grating engraved with the keyboard image by a red wave band laser, so that the computer keyboard image is projected; when a user 'clicks' a key of the projected keyboard image, the image information in the keyboard image area is caught by the infrared laser locating system through an infrared camera, and the coordinate of the position where the 'click' action happens is recognized by utilizing an image processing technique; then the coordinate is converted into the position information of an orthogonal coordinate system of the plane of the keyboard; the key command is confirmed and is transmitted into the infrared image acquisition and processing module. The laser projection virtual keyboard has the beneficial effects that the laser projection virtual keyboard is convenient to carry and operate and low in cost, and can be applied in multiple environments such as a mobile telephone, a flat plate type personal computer (PC), a notebook computer, a clean room, a sterile and medical environment, transport and test equipment, etc.
Description
Technical field
The present invention relates to technical field of electronic equipment, be specifically related to a kind of laser projection dummy keyboard.
Background technology
Along with the development of computer technology and universal, keyboard, as the important input equipment of computing machine, is being played the part of irreplaceable role all the time.No matter be the input of data, or the transmission of control signal, all be unable to do without keyboard.And within the foreseeable quite a long period, the effect of keyboard is all indispensable.Yet conventional keyboard is bulky, carry inconvenience, cannot meet the demand of mobile terminal to input equipment, therefore need to design a have volume little, be easy to carry, easy to operate vertical keyboard device, replace traditional mechanical keyboard.
VLK full name is Virtual Laser Keyboard, and virtual laser keyboard, is produced by Hutchison Harbour Ring Limited-HRR company.It is the similar dummy keyboard of a kind of size and small-sized movable phone (90x34x24mm), allows user as operation common keyboard, get easily article or Email.I-Tech dummy keyboard adopts light projection technology, almost can on arbitrary plane, projection go out full-scale computor-keyboard.When dummy keyboard is used on PDA and smart mobile phone, can carries out easily E-mail receiver/send, word processing and electrical form and make, user can stay in notebook computer and tabletop machine.The applicability technology of dummy keyboard is studied user's finger motion, and keyboard stroke is decoded and record.Because dummy keyboard is the formed image of light projection, while not using, can disappear completely.
Google submits new patented claim in January, 2013 to United States Patent (USP) trademark office, and this patent is pointed to laser projection keyboard, user's body can be become to touch screen.Apple has also been applied for the patent of dummy keyboard, has described and how to have allowed dummy keyboard ring more feeling four kinds of methods, and comprising similarly being below touch panel, increasing one deck can be when keyboard comes across screen, and projection increases the assembly of feel.Also allow user after by lower keyboard simultaneously, can experience resilience in various degree, allow feel closer to physical keyboard.Microsoft proposes dummy keyboard patent, and its can your palm of sensing and the position of finger, then utilizes multi-touch technology dummy keyboard to be aimed to your hand, thus you can not worry to press the wrong button because button is just fixed on your finger below.
Vertical keyboard device has following advantage: 1. high brightness, can, under normal room lighting environment, demonstrate keyboard image clearly; 2. high stability and security, can long-time steady operation, can not damage human body; 3. low-cost, be convenient to promote; 4. volume little, be easy to carry, easy to operate.The advantage of these four aspects, thus traditional mechanical keyboard substituted.But, the shortcoming of dummy keyboard is because hardware restriction dummy keyboard can only be inputted English, this is for Chinese user's some disappointment unavoidably of input, although driving (such as Microsoft Windows Mobile2003Second Edition for Pocket PC Phone simplified Chinese edition etc.) can be installed on Chinese mobile system, but only can input English character, can there is supporting the Chinese character coding input method of dummy keyboard in hope as early as possible.
Summary of the invention
The object of the invention is to defect and deficiency for prior art, a kind of laser projection dummy keyboard is provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of laser projection dummy keyboard of the present invention, comprise keyboard image projection module, infrared image acquisition and processing module and infrared laser positioning system three parts form, keyboard image projection module is carved with the grating of keyboard image by the laser instrument transmission of red wave band, projection goes out computor-keyboard image, during certain button of the keyboard image going out when user's " click " projection, infrared laser positioning system catches the image information in keyboard image region by thermal camera, utilize image processing techniques to identify the position coordinates that " click " action occurs, then above-mentioned coordinate conversion is become to the positional information of the orthogonal coordinate system of keyboard plane, determine key commands, and key commands is sent to infrared image acquisition and processing module.
As preferably, described keyboard image projection module comprises that two infrared lasers launch dual light beam and carry out projection.
Adopt after said structure, beneficial effect of the present invention is: easy to carry, and convenient operation, cost is low, and it can apply under mobile phone, flat PC, notebook computer, toilet, aseptic and a lot of environment such as medical environment, transportation and testing apparatus.Along with the maturation of virtual technology, dummy keyboard can be applied under more field and environment, thereby replaces completely mechanical keyboard.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural framing figure of the present invention;
Fig. 2 is workflow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, shown in Fig. 2, a kind of laser projection dummy keyboard, comprise keyboard image projection module, infrared image acquisition and processing module and infrared laser positioning system three parts form, keyboard image projection module is carved with the grating of keyboard image by the laser instrument transmission of red wave band, projection goes out computor-keyboard image, during certain button of the keyboard image going out when user's " click " projection, infrared laser positioning system catches the image information in keyboard image region by thermal camera, utilize image processing techniques to identify the position coordinates that " click " action occurs, then above-mentioned coordinate conversion is become to the positional information of the orthogonal coordinate system of keyboard plane, determine key commands, and key commands is sent to infrared image acquisition and processing module, described keyboard image projection module comprises that two infrared lasers launch dual light beam and carry out projection.
When infrared laser transmitting aligned bundle, it is the dual light beam of transmitting, there are two LASER Light Source to carry out projection, so better touch screen location, when two-beam source all throw into will by letter, just click keyboard, if two-beam source is not thrown on identical letter, illustrate that projection is inaccurate, again project.Can effectively improve the accuracy rate of typewriting like this, also can effectively improve the speed of typewriting.
Dummy keyboard is a simulation actual keyboard function, and interface and actual keyboard have close application program.After keyboard creates, its using method and actual keyboard are basically identical.First, create a dummy keyboard, operation VirtualKB.exe, then creates PVG Net Keyboard, and then creates RD530Net Keyboard, then creates RD530Serial Keyboard, and PVG dummy keyboard has just created like this.Then arrange and remove output, just can content in the Output bar of keyboard below is clear.Arrange and hide output, the Output bar of keyboard below can be hidden, seem more as a keyboard.Adhesion switch is set again, in actual keyboard, when some keyboard operation need to be pressed certain key again, presses again other keys, for the dummy keyboard use adhesion switch of mouse-based operation, just can realize same effect.Such as locking certain monitor, need ALT+MON+ENT, at this time just can first select the switch of adhering, then click successively ALT, MON, ENT is just passable, taps afterwards adhesion switch again, cancels adhesion function.Also have PTZ to control, on real keyboard, generally all can have a three-dimensional rocking bar can control the motion of video camera, also there is a circle on the right of dummy keyboard, and there is a stain in the center of circle, with this round dot of mouse drag, to different directions, the The Cloud Terrace of corresponding video camera will be done corresponding motion.The keyboard quantity that dummy keyboard program can be set up is hard-core in principle, by the tab on a beating keyboard, be free to switch between different keyboards, close a keyboard and only need under this keyboard interface, click closing keyboard, such dummy keyboard just can normally have been used.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. a laser projection dummy keyboard, it is characterized in that: comprise keyboard image projection module, infrared image acquisition and processing module and infrared laser positioning system three parts form, keyboard image projection module is carved with the grating of keyboard image by the laser instrument transmission of red wave band, projection goes out computor-keyboard image, during certain button of the keyboard image going out when user's " click " projection, infrared laser positioning system catches the image information in keyboard image region by thermal camera, utilize image processing techniques to identify the position coordinates that " click " action occurs, then above-mentioned coordinate conversion is become to the positional information of the orthogonal coordinate system of keyboard plane, determine key commands, and key commands is sent to infrared image acquisition and processing module.
2. a kind of laser projection dummy keyboard according to claim 1, is characterized in that: described keyboard image projection module comprises that two infrared lasers launch dual light beam and carry out projection.
3. a kind of laser projection dummy keyboard according to claim 1, is characterized in that: described infrared image acquisition and processing module are to gather image by ccd sensor.
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| CN201310718675.5A CN103631382A (en) | 2013-12-20 | 2013-12-20 | Laser projection virtual keyboard |
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| CN201310718675.5A CN103631382A (en) | 2013-12-20 | 2013-12-20 | Laser projection virtual keyboard |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104850189A (en) * | 2015-06-15 | 2015-08-19 | 蒲婷 | Mobile intelligent terminal with functions of smart phone and personal computer |
| CN105045406A (en) * | 2015-09-12 | 2015-11-11 | 侯明鑫 | Optical projection keyboard and mouse |
| CN105739672A (en) * | 2014-12-09 | 2016-07-06 | 深圳富泰宏精密工业有限公司 | Projection input system and method |
| CN106114519A (en) * | 2016-08-05 | 2016-11-16 | 威马中德汽车科技成都有限公司 | A kind of device and method vehicle being controlled by operation virtual push button |
| CN106155423A (en) * | 2015-04-28 | 2016-11-23 | 长城汽车股份有限公司 | Vehicle-mounted laser projection key system and vehicle |
| CN106205576A (en) * | 2016-08-31 | 2016-12-07 | 哈尔滨固泰电子有限责任公司 | Electronic musical instrument |
| CN106325542A (en) * | 2015-07-02 | 2017-01-11 | 浙江大学自贡创新中心 | Mouse with keyboard projection function and realization method thereof |
| CN106339090A (en) * | 2016-08-31 | 2017-01-18 | 广东虹勤通讯技术有限公司 | Keycap, gloves and input system |
| CN106708330A (en) * | 2015-07-16 | 2017-05-24 | 比亚迪股份有限公司 | Virtual key system of car steering wheel and car with virtual key system |
| CN107613335A (en) * | 2017-08-31 | 2018-01-19 | 广东九联科技股份有限公司 | A kind of set top box with laser-projection keyboard function |
| CN107653950A (en) * | 2017-10-11 | 2018-02-02 | 厦门致杰智能科技有限公司 | A kind of toilet seat with laser keyboard control structure |
| CN107941316A (en) * | 2017-11-16 | 2018-04-20 | 广东永衡良品科技有限公司 | A kind of electronic scale with laser virtual keyboard |
| CN108170321A (en) * | 2017-12-15 | 2018-06-15 | 牧东光电科技有限公司 | A kind of projection smart machine |
| CN108595023A (en) * | 2018-04-27 | 2018-09-28 | 宁波视睿迪光电有限公司 | A kind of interactive handle and system |
| CN108981182A (en) * | 2017-05-31 | 2018-12-11 | 芜湖美的厨卫电器制造有限公司 | Control method, device and the water heater of water heater |
| CN110502121A (en) * | 2019-07-24 | 2019-11-26 | 江苏大学 | A kind of frame dummy keyboard and its Introduced Malaria algorithm for thering is sense of touch height to distinguish rate |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739672A (en) * | 2014-12-09 | 2016-07-06 | 深圳富泰宏精密工业有限公司 | Projection input system and method |
| CN106155423A (en) * | 2015-04-28 | 2016-11-23 | 长城汽车股份有限公司 | Vehicle-mounted laser projection key system and vehicle |
| CN104850189A (en) * | 2015-06-15 | 2015-08-19 | 蒲婷 | Mobile intelligent terminal with functions of smart phone and personal computer |
| CN106325542A (en) * | 2015-07-02 | 2017-01-11 | 浙江大学自贡创新中心 | Mouse with keyboard projection function and realization method thereof |
| CN106708330A (en) * | 2015-07-16 | 2017-05-24 | 比亚迪股份有限公司 | Virtual key system of car steering wheel and car with virtual key system |
| CN106708330B (en) * | 2015-07-16 | 2020-03-31 | 比亚迪股份有限公司 | Virtual key system of automobile steering wheel and automobile with same |
| CN105045406A (en) * | 2015-09-12 | 2015-11-11 | 侯明鑫 | Optical projection keyboard and mouse |
| WO2017041506A1 (en) * | 2015-09-12 | 2017-03-16 | 北京佳拓思科技有限公司 | Light projection keyboard and mouse assembly |
| CN106114519A (en) * | 2016-08-05 | 2016-11-16 | 威马中德汽车科技成都有限公司 | A kind of device and method vehicle being controlled by operation virtual push button |
| CN106205576A (en) * | 2016-08-31 | 2016-12-07 | 哈尔滨固泰电子有限责任公司 | Electronic musical instrument |
| CN106339090A (en) * | 2016-08-31 | 2017-01-18 | 广东虹勤通讯技术有限公司 | Keycap, gloves and input system |
| CN108981182A (en) * | 2017-05-31 | 2018-12-11 | 芜湖美的厨卫电器制造有限公司 | Control method, device and the water heater of water heater |
| CN108981182B (en) * | 2017-05-31 | 2021-04-27 | 芜湖美的厨卫电器制造有限公司 | Control method and device of water heater and water heater |
| CN107613335A (en) * | 2017-08-31 | 2018-01-19 | 广东九联科技股份有限公司 | A kind of set top box with laser-projection keyboard function |
| CN107653950A (en) * | 2017-10-11 | 2018-02-02 | 厦门致杰智能科技有限公司 | A kind of toilet seat with laser keyboard control structure |
| CN107941316A (en) * | 2017-11-16 | 2018-04-20 | 广东永衡良品科技有限公司 | A kind of electronic scale with laser virtual keyboard |
| CN108170321A (en) * | 2017-12-15 | 2018-06-15 | 牧东光电科技有限公司 | A kind of projection smart machine |
| CN108595023A (en) * | 2018-04-27 | 2018-09-28 | 宁波视睿迪光电有限公司 | A kind of interactive handle and system |
| CN110502121A (en) * | 2019-07-24 | 2019-11-26 | 江苏大学 | A kind of frame dummy keyboard and its Introduced Malaria algorithm for thering is sense of touch height to distinguish rate |
| CN110502121B (en) * | 2019-07-24 | 2023-02-17 | 江苏大学 | Frame type virtual keyboard with touch sense and high recognition resolution and input correction algorithm thereof |
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Application publication date: 20140312 |