CN106249967A - Wireless touch system - Google Patents
Wireless touch system Download PDFInfo
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- CN106249967A CN106249967A CN201610598910.3A CN201610598910A CN106249967A CN 106249967 A CN106249967 A CN 106249967A CN 201610598910 A CN201610598910 A CN 201610598910A CN 106249967 A CN106249967 A CN 106249967A
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- 230000003287 optical effect Effects 0.000 claims abstract description 191
- 238000001914 filtration Methods 0.000 claims abstract description 79
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Position Input By Displaying (AREA)
Abstract
The present invention relates to electronic equipment, particularly relate to a kind of touch screen.Wireless touch system, including a touch pad, the touch location detection module of a detected touch point position, touch location detection module includes a signal processing module, it is characterized in that, touch location detection module also includes that an optical signal receives head, optical signal receives head and is provided with light-sensitive element, and light-sensitive element connects signal processing module；Light-sensitive element uses infrared receiving terminal；Optical signal receives head and includes at least four light-filtering channels；Light-filtering channels one end is provided with a light inlet, and the other end of light-filtering channels is provided with light-sensitive element, and the conduit wall of light-filtering channels is the conduit wall being made up of light screening material；The light inlet of light-filtering channels is towards touch pad position.Owing to using technique scheme, the present invention is not only simple in structure, with low cost, and can use less device.
Description
The filing date of the original application of this divisional application: on 06 07th, 2011, Application No.: 2011101503748, name
It is referred to as: optical touch screen.
Technical field
The present invention relates to electronic equipment, particularly relate to a kind of touch screen.
Background technology
Growing along with multimedia technology, touch-screen applications is more and more extensive, such as telecommunication bureau, bank, street corner, city
Information inquiry, Industry Control, multimedia teaching etc..Touch screen has that sturdy and durable, response speed is fast, saves space, is prone to
The advantages such as exchange.Utilize this technology, as long as user finger or other touch parts just touch the picture and text on display screen lightly
Operation can be realized, so that man-machine interaction is the most simple and direct, greatly facilitate user.
Existing touch screen mainly uses infrared touch panel.Infrared touch panel, relative to other touch screens, has performance steady
The series of advantages such as fixed, capacity of resisting disturbance is strong, life-span length, precision height.Almost with overwhelming advantage, gradually capture other and touch
The market of screen.But infrared touch panel still suffers from fatefulue weakness to be difficult to overcome.Additionally infrared emission pipe to be filled outside screen,
Having had influence on the compactedness of structure, on small-sized screen, inconvenience uses, as inconvenience is used on the screen of mobile phone and palm PC.And
And infrared touch panel cost is the highest.
Summary of the invention
It is an object of the invention to provide a kind of wireless touch system, to solve above-mentioned technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
Wireless touch system, including a touch pad, the touch location detection module of a detected touch point position, described touch
Position detecting module includes a signal processing module, it is characterised in that described touch location detection module also includes an optical signal
Receiving head, described optical signal receives head and is provided with light-sensitive element, and described light-sensitive element connects described signal processing module；Described light
Quick element uses infrared receiving terminal；
Described optical signal receives head and includes at least four light-filtering channels；
Described light-filtering channels one end is provided with a light inlet, and the other end of described light-filtering channels is provided with described light-sensitive element, institute
The conduit wall stating light-filtering channels is the conduit wall being made up of light screening material；
The light inlet of described light-filtering channels is towards described touch pad position.
It is additionally provided with a microprocessor system in described wireless touch system；
Forming one on described touch pad can be by the luminous point of described touch location detection module identification (with luminous point for touching
Point), the optical signal sent at described luminous point is received by least one the described light-sensitive element in described touch location detection module
After, produce touch signal, and touch signal is passed to described microprocessor system；Described microprocessor system is considered as institute
State luminous point to be positioned at the optical signal corresponding to light inlet of light-filtering channels described in the light-sensitive element place receiving described optical signal and connect
In receipts region, and optical signal receiving area is associated with on described touch pad.
Above-mentioned design can be easy to control without reference to background picture, is particularly well-suited to control the electrical equipment such as television set, air-conditioning.
Above-mentioned being designed with, makes touch location detection module have simple in construction, with low cost, installation and debugging at light-sensitive element scanning spot
Simply wait remarkable advantage.
Described light-sensitive element can use infrared receiving terminal.With simplified system and the signal of reduction touch location detection module
Treating capacity.
Width within described light-filtering channels is: described light inlet width at one end more than described light-sensitive element place
The width of one end, and width is at one end at one end gradually reduced to described light-sensitive element from described light inlet；Described photosensitive
The element described light inlet of reception is towards the light in region, so that described light inlet front forms an effective optical signal reception area
Territory.
The light inlet of four described light-filtering channels, towards described touch pad position, is formed extremely in described touch pad front
Few four optical signal receiving areas；And four optical signal receiving areas are not exclusively overlapping or the most overlapping；
Described at least four, light-filtering channels is arranged in order, and arrangement mode is that described light-sensitive element institute is the most adjacent, described
Light inlet institute is the most adjacent.Above-mentioned design makes optical signal receiving area towards unanimously.
Light-filtering channels described at least four is arranged in order in a row.Optical signal receives head and is arranged on the avris of touch pad, enters
Row scanning spot.
Light-filtering channels described at least four is arranged in order at least two rows.Before optical signal reception head is arranged on touch pad
Side, is scanned luminous point.
Described light-filtering channels is flat sector, and described sector is parallel with described touch pad place plane；At least four
Described light-filtering channels is sequentially arranged in the plane parallel with described touch pad place plane, and shape is in a row.
Described light-filtering channels can also be hollow tubular, and light-filtering channels described at least four is sequentially arranged in and described touch
In the plane that plate place plane is parallel, shape is in a row.
The light inlet of described light-filtering channels exists towards described touch pad, corresponding optical signal receiving area corresponding (mapping)
On described touch pad.
Described light-filtering channels is taper, and described light-filtering channels is pyramid.
Described light inlet is provided with optical filter.To filter uncorrelated optical signal.
Light inlet described at least four of described optical signal reception head uses same optical filter.
The described passage of described light-filtering channels is kept away and is provided with reflector layer, to strengthen light.To ensure that light-filtering channels is corresponding
Light-sensitive element can receive the optical signal sent at the optical signal region that light-filtering channels is corresponding.
The described passage of described light-filtering channels is kept away and is provided with dark coating, to absorb light.To avoid light-filtering channels corresponding
Light-sensitive element receive the optical signal sent at the optical signal region that other light-filtering channels are corresponding.
Described microprocessor system uses the microprocessor system of television set top box.The wireless touch system of the present invention
System carries out signal with television set top box and is connected, and shares microprocessor system with television set top box, it is achieved to television set
Touch operation.
Described microprocessor system uses the microprocessor system of computer.The wireless touch system of the present invention and computer
Carry out signal connection, and share microprocessor system with computer, it is achieved the touch operation to computer.
Described microprocessor system connects a wireless local area network communications module, wirelessly needs to touch with the external world
The equipment touching operation carries out signal connection, it is achieved touch operation function.
Described microprocessor system connects a bluetooth communication, needs with the external world to touch by the way of Bluetooth transmission
The bluetooth equipment of operation carries out signal connection, it is achieved touch operation function.
Described microprocessor system connects an infrared communication module, needs with the external world to touch by the way of infrared transmission
The infrared equipment of operation carries out signal connection, it is achieved touch operation function.
The light of reflection at described luminous point is received when the light-filtering channels of same row exists light-sensitive element described in even number
Time, it being considered as the middle part that luminous point is positioned at the optical signal region at middle two described light-sensitive element places, described signal processing module produces
Raw touch signal, and touch signal is passed to described microprocessor system, described microprocessor system will be located in centre
The middle part of the optical signal receiving area at two described light-sensitive element places is associated with on described touch pad.
The light of reflection at described luminous point is received when the light-filtering channels of same row exists light-sensitive element described in odd number
Time, it being considered as the optical signal region that luminous point is positioned at the light-sensitive element place of centre, described signal processing module produces touch signal, and
Touch signal passes to described microprocessor system, and described microprocessor system will be located in the light-sensitive element place of centre
Optical signal region be associated with on described touch pad.
In order to improve touch screen precision further, the light inlet of light-filtering channels described at least two of same row touches described
Template front forms at least two optical signal receiving area, and when there is overlapping region, in light-filtering channels described at least two
When light-sensitive element all receives the optical signal sent at described luminous point and responds, described microprocessor system is considered as described luminous point position
Overlapping region in two described signal receiving areas.Described overlapping region can be that two optical signal receiving areas partly overlap
Constitute, it is also possible to be that three, four or more optical signal receiving area partly overlap composition.
Receiving head including optical signal described at least two, described at least two, optical signal receives the optical signal district corresponding to head
Territory exists and intersects.
Optical signal described at least two receives head and is separately positioned on the both sides of described touch pad.
Optical signal described at least two receives head and is separately positioned on the front of described touch pad.
Described signal processing module processes an optical signal and receives header, obtains luminous point and is positioned at an optical signal region；Described
Signal processing module processes another optical signal and receives header, obtains luminous point and is positioned at another optical signal region, described signal processing
Module produces touch signal, and touch signal passes to described microprocessor system, and described microprocessor system is by position
It is associated with on described touch pad in the optical signal region in an optical signal region Yu another optical signal region crossover location, and then determines
Luminous point position on a touchpad.
The photosensitive unit of light-filtering channels described at least two of the same row that the optical signal of one luminous point is received head by an optical signal
Part receives and identifies；The light-sensitive element of at least one the described light-filtering channels also being received head by another optical signal receives and identifies；
Then, described microprocessor system be judged as described luminous point be positioned at one optical signal receive a same row at least two described in filter
The overlapping region in the optical signal region of passage, receives the optical signal district of at least one described light-filtering channels of head with another optical signal
The overlapping region in territory.
By increasing above-mentioned algorithm, touch precision can be effectively improved further.
Also including a touch part, touch part and produce light beam, described light beam forms a luminous point on described touch pad.Described
The light beam touching part generation can use laser, is formed luminous point on a touchpad by laser.
Described touch part can use remote touch pen, described remote touch pen to include laser instrument, power supply, also has signal
Module occurs, and power supply connects signal generating module, signal generating module connecting laser, and signal generating module produces the electricity of vibration
Signal, and drive laser instrument to send the laser signal of the flicker corresponding with the signal of telecommunication.Remote touch pen is by remotely controlling light
Point, realizes corresponding remotely operation to wireless touch system.Remote touch pen is provided with switch.
Touch part and include a light-emitting component, touch part light-emitting component of triggering touch part when touching described touch pad and send out
Light, forms luminous point on a touchpad.
Described touch part can use short range felt pen, described short range touch pad to include a shell, power supply, switch and luminescence unit
Part, the luminous situation of on-off control light-emitting component；Switch is connected with the touch end of short range felt pen, touches end and is touching touch pad
Time trigger switch, light-emitting component is luminous, forms luminous point on a touchpad.Short range felt pen is luminous when contacting with touch pad,
Forming a luminous point on touch pad, luminous point is mobile with the movement of short range felt pen, thus realizes short range felt pen pair by luminous point
The touch operation of wireless touch system.
Also include that linear laser device, described linear laser device are arranged on the side of described touch pad, described linear laser device
One layer of laser emitting line parallel with described touch pad is formed in the range of the touch of described touch pad；
When touching part and touching touch pad, block laser emitting line, form luminous point.
Described linear laser device uses a wordline shape laser instrument, a wordline shape laser instrument can be arranged on described optical signal and connect
Receive the offside of head.When touch pad is bigger, a described wordline shape laser instrument could be arranged to multiple, multiple wordline shape laser instrument
The side of touch pad can be arranged on, it is also possible to be arranged as required to, as long as one layer of multiple wordline shape laser instrument formation is swashed
Light emergent ray covers the touch scope of touch pad.
A described wordline shape laser instrument is at least two, and number is identical with the number that described optical signal receives head, described
One wordline shape laser instrument is arranged on described optical signal and receives the offside of head, sending of a wordline shape laser instrument described at least two
The flicker frequency of light is different, and described optical signal receives head and receives the laser that a wordline shape laser instrument of offside sends respectively.By one
After the frequency of wordline shape laser instrument tunes to open, each touch location detection module can receive a wordline shape laser instrument of correspondence, completes
The scanning of luminous point.
It is at least two that described optical signal receives head, and a described wordline shape laser instrument is one, as long as this wordline shape swashs
One layer of laser emitting line that light device is formed covers the touch scope of touch pad.Described signal processing module uses Time share scanning
Mode, timesharing receives optical signal described at least two and receives the reception information that hair send.Above-mentioned design can reduce linear sharp
The number of light device, and then reduce cost.
Beneficial effect: owing to using technique scheme, the present invention is not only simple in structure, with low cost, and can use
Less device, it is achieved the function that high accuracy touches.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that optical signal of the present invention receives head；
Fig. 2 is the another kind of structural representation that optical signal of the present invention receives head；
Fig. 3 is a kind of structural representation of the present invention；
Fig. 4 is the another kind of structural side view of the present invention；
Fig. 5 is the another kind of structural representation of the present invention；
Fig. 6 is the another kind of structural representation of the present invention；
Fig. 7 is the another kind of structural representation of the present invention；
Fig. 8 is the another kind of structural representation of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Conjunction is specifically illustrating and the present invention is expanded on further.
Referring to figs. 1 through Fig. 8, wireless touch system, the touch location including touch pad 1, detected touch point position is examined
Surveying module, a microprocessor system, touch location detection module includes a signal processing module, and touch location detection module is also
Including an optical signal reception 2, optical signal reception 2 is provided with light-sensitive element, and light-sensitive element connects signal processing module.Light is believed
Number receiving 2 includes at least four light-filtering channels 21.Light-filtering channels 21 one end is provided with a light inlet, the other end of light-filtering channels 21
Being provided with light-sensitive element 22, the conduit wall of light-filtering channels 21 is the conduit wall being made up of light screening material.Light-sensitive element 22 receives into light
Mouth is towards the light in region, so that light inlet front forms an effective optical signal receiving area.Four light-filtering channels 21
Light inlet, towards touch pad 1 position, forms at least four optical signal receiving area in touch pad 1 front.And four light letters
Number receiving area is not exclusively overlapping or the most overlapping.
Forming one on touch pad 1 can be by the luminous point 3 of described touch location detection module identification, with luminous point 3 as touch point.
After at least one light-sensitive element 22 that the optical signal sent at luminous point 3 is touched in position detecting module receives, produce and touch letter
Number, and touch signal is passed to microprocessor system.Light-sensitive element 22 can use infrared receiving terminal.With simplified system and
Reduce the signal processing amount of touch location detection module.
Whether each light-sensitive element 22 in detection module can constantly exist by Time share scanning luminous point 3, and there is position.
Microprocessor system be considered as luminous point 3 be positioned at the light-sensitive element 22 place light-filtering channels 21 receiving optical signal light inlet institute right
In the optical signal receiving area answered, and optical signal receiving area is associated with on touch pad 1.Above-mentioned design can be without reference to background
Picture, easy to control, it is particularly well-suited to control the electrical equipment such as television set, air-conditioning.Above-mentioned it is designed with light-sensitive element 22 scanning spot
3, make touch location detection module have the remarkable advantages such as simple in construction, with low cost, installation and debugging are simple.
With reference to Fig. 1, Fig. 2, width light-filtering channels 21 within is: light inlet width at one end be more than light-sensitive element 22
Width at one end, and width is at one end at one end gradually reduced to light-sensitive element 22 from light inlet.At least four is filtered
Optical channel 21 is arranged in order, and arrangement mode is that light-sensitive element 22 institute is the most adjacent, and light inlet institute is the most adjacent.
With reference to Fig. 1, Fig. 3, at least four light-filtering channels 21 is arranged in order in a row.Realize optical signal reception 2 to be arranged on
The avris of touch pad 1, is scanned luminous point 3.Light-filtering channels 21 is flat sector, and sector is put down with touch pad 1 place plane
OK；At least four light-filtering channels 21 is sequentially arranged in the plane parallel with touch pad 1 place plane, and shape is in a row.Filter logical
Road 21 can also be hollow tubular, and at least four light-filtering channels 21 is sequentially arranged in the plane parallel with touch pad 1 place plane
On, shape is in a row.With reference to Fig. 3, being provided with an optical signal reception 2 at an avris of touch pad 1, optical signal receives 2 bag
Include four light-sensitive elements 22, four light-sensitive elements 22 corresponding optical signal region 1a, optical signal region 1b, light letters on touch pad 1
Number region 1c, optical signal region 1d.When the luminous point 3 touching part formation is at the 1a of optical signal region, light-sensitive element 2a receives
To the light of luminous point 3 reflection, signal processing module receives the reception information that light-sensitive element 2a sends, and determines that touch signal is believed at light
In the range of number region 1a.
With reference to Fig. 2, Fig. 4, at least four light-filtering channels 21 is arranged in order at least two rows.Realize optical signal reception 2 to set
Put the front at touch pad 1, be scanned luminous point 3.The light inlet of light-filtering channels 21 is towards touch pad 1, corresponding optical signal
Receiving area corresponding (mapping) is on touch pad 1.Light-filtering channels 21 is taper, and light-filtering channels 21 is pyramid.
Light inlet is provided with optical filter.To filter uncorrelated optical signal.At least four of optical signal reception 2 enters light
Mouth uses same optical filter.The passage of light-filtering channels 21 is kept away and is provided with reflector layer, to strengthen light.To ensure that light-filtering channels 21 is right
The light-sensitive element 22 answered can receive the optical signal sent at the optical signal region of light-filtering channels 21 correspondence.The passage of light-filtering channels 21
Keep away and be provided with dark coating, to absorb light.So that the light-sensitive element 22 avoiding light-filtering channels 21 correspondence receives other light-filtering channels
The optical signal sent at the optical signal region of 21 correspondences.
Microprocessor system uses the microprocessor system of television set top box.The wireless touch system of the present invention with
Television set top box carries out signal connection, and shares microprocessor system with television set top box, it is achieved touch television set
Touch operation.Microprocessor system uses the microprocessor system of computer.The wireless touch system of the present invention is carried out with computer
Signal connects, and shares microprocessor system with computer, it is achieved the touch operation to computer.Microprocessor system connects one
Wireless local area network communications module, wirelessly needs with the external world equipment of touch operation to carry out signal and is connected, it is achieved touch
Touch operating function.Microprocessor system connects a bluetooth communication, needs with the external world to touch by the way of Bluetooth transmission
The bluetooth equipment of operation carries out signal connection, it is achieved touch operation function.Microprocessor system connects an infrared communication module,
Need the infrared equipment of touch operation to carry out signal with the external world by the way of infrared transmission to be connected, it is achieved touch operation function.
When there is the light that even number light-sensitive element 22 receives reflection at luminous point 3, being considered as luminous point 3 and being positioned at middle two
The middle part in the optical signal region at light-sensitive element 22 place, signal processing module produces touch signal, and is passed to by touch signal
Microprocessor system, microprocessor system will be located in the optical signal receiving area at middle two light-sensitive element 22 places
Portion is associated with on touch pad 1.Such as in Fig. 5, luminous point 3 is positioned at optical signal region 1a and the medium position of optical signal region 1b, light
Quick element 2a and light-sensitive element 2b all receives the light of luminous point 3 reflection, and signal processing module receives light-sensitive element 2a and light respectively
The reception information that quick element 2b sends, according to above-mentioned determination methods, determines touch signal optical signal region 1a on touch pad 1
Middle part with optical signal region 1b.
When there is the light that odd number light-sensitive element 22 receives reflection at luminous point 3, being considered as luminous point 3 and being positioned at the light of centre
The optical signal region at quick element 22 place, signal processing module produces touch signal, and touch signal passes to miniature process
Device system, the optical signal region at light-sensitive element 22 place that microprocessor system will be located in centre is associated with on touch pad 1.Example
In Fig. 6, although luminous point 3 is positioned at the 1b of optical signal region, but light-sensitive element 2a, light-sensitive element 2b, light-sensitive element 2c all receive
To the light of luminous point 3 reflection, signal processing module receives light-sensitive element 2a respectively, light-sensitive element 2b, light-sensitive element 2c send
Reception information, according to above-mentioned determination methods, determines the touch signal optical signal region 1b model at middle light-sensitive element 2b place
In enclosing.
In order to improve touch screen precision further, the light inlet of at least two light-filtering channels 21 of same row is at touch pad 1
Front forms at least two optical signal receiving area, and photosensitive unit when there is overlapping region, at least two light-filtering channels 21
When part 22 all receives the optical signal sent at luminous point 3 and responds.Microprocessor system is considered as luminous point 3 and is positioned at two signals receptions
The overlapping region in region.Overlapping region can be that two optical signal receiving areas partly overlap composition, it is also possible to is three, four
Or more optical signal receiving areas partly overlap composition.
With reference to Fig. 7, the present invention can include at least two optical signal reception 2, and it is right that at least two light meets signal receipts 2 institute
The optical signal region answered exists and intersects.At least two optical signal reception 2 is separately positioned on the both sides of touch pad 1.At least two
Optical signal reception 2 is separately positioned on the front of touch pad 1.Signal processing module processes the information of an optical signal reception 2,
Being positioned at an optical signal region to luminous point 3, signal processing module processes another optical signal and receives the information of head, obtains luminous point 3 and is positioned at
Another optical signal region, signal processing module (or microprocessor system) be considered as luminous point 3 be positioned at an optical signal region and another
Optical signal region crossover location, signal processing module produces touch signal.And touch signal is passed to microprocessor system,
Microprocessor system will be located in the optical signal region of an optical signal region and another optical signal region crossover location and is associated with tactile
In template 1, and then determine the luminous point 3 position on touch pad 1.
Such as in Fig. 7, being respectively equipped with an optical signal reception 2 at two side angles of touch pad 1, each optical signal connects
Receipts 2 include four light-sensitive elements.Four light-sensitive elements of the optical signal reception 2 in left side form optical signal on touch pad 1
Region 1a, optical signal region 1b, optical signal region 1c, optical signal region 1d.Four photosensitive units of the optical signal reception 2 on right side
Part forms optical signal region 1e, optical signal region 1f, optical signal region 1g, optical signal region 1h on touch pad 1.Signal processing
Module first processes the reception information that the light-sensitive element in the optical signal reception 2 in left side sends, and obtains luminous point 3 and is positioned at optical signal district
In the range of the 1b of territory.Then, the reception letter that the light-sensitive element in the optical signal reception 2 on the right side of signal processing module process sends
Breath, obtains in the range of luminous point 3 is positioned at optical signal region 1g.Finally, signal processing module determines that touch signal is positioned at optical signal district
Territory 1b and the overlapping of optical signal region 1g.
The optical signal of one luminous point 3 is by the photosensitive unit of at least two light-filtering channels 21 of the same row of an optical signal reception 2
Part 22 receives and identifies.The light-sensitive element of at least one light-filtering channels also being received head by another optical signal receives and identifies.Then,
Microprocessor system is judged as that luminous point 3 is positioned at the light letter that an optical signal receives at least two light-filtering channels 21 of a 2 same row
The overlapping region in number region, receives the overlapping region in the optical signal region of at least one light-filtering channels of head with another optical signal.
When the light-sensitive element of at least two light-filtering channels that another optical signal receives head receives and identifies.Position residing for luminous point
Putting also, another optical signal receives the overlapping region that head can also be the optical signal region of two light-filtering channels.
The formation of luminous point 3 can take various forms, and such as touches part and produces light beam, and light beam forms one on touch pad 1
Individual luminous point 3.The light beam touching part generation can use laser, forms luminous point 3 by laser on touch pad 1.Touch part is permissible
Using remote touch pen, remote touch pen includes laser instrument, power supply, also has signal generating module, and power supply connects signal and occurs
Module, signal generating module connecting laser, signal generating module produces the signal of telecommunication of vibration, and drives laser instrument to send and electricity
The laser signal of the flicker that signal is corresponding.Wireless touch system, by remotely controlling luminous point 3, is realized corresponding by remote touch pen
Long-range operation.Remote touch pen is provided with switch.
Touch part and include a light-emitting component, touch part light-emitting component of triggering touch part when touching touch pad 1 luminous,
Luminous point 3 is formed on touch pad 1.Touching part can use short range felt pen, short range felt pen to include a shell, power supply, switch and send out
Optical element, the luminous situation of on-off control light-emitting component；Switch is connected with the touch end of short range felt pen, touches end and touches in touch
Triggering switch during template 1, light-emitting component is luminous, forms luminous point 3 on touch pad 1.Short range felt pen is when contacting with touch pad 1
Luminescence, forms a luminous point 3 on touch pad 1, and luminous point 3 is mobile with the movement of short range felt pen, thus is realized closely by luminous point 3
The touch operation to wireless touch system of the journey felt pen.
With reference to Fig. 3, Fig. 5, Fig. 6, also include that linear laser device 4, linear laser device 4 are arranged on the side of touch pad 1, linear
Laser instrument 4 forms one layer of laser emitting line parallel with touch pad 1 in the range of the touch of touch pad 1.Linear laser device 4 is preferred
One wordline shape laser instrument, when touching part and touching touch pad 1, blocks laser emitting line, forms luminous point 3.Linear laser device 4 is permissible
It is arranged on the offside of optical signal reception 2.When touch pad 1 is bigger, linear laser device 4 could be arranged to multiple, multiple linear
Laser instrument 4 can be arranged on the side of touch pad 1, it is also possible to is arranged as required to, as long as the one of the formation of multiple linear laser device 4
Layer laser emitting line covers the touch scope of touch pad 1.With reference to Fig. 7, linear laser device 4 be at least two, and number and
The number of optical signal reception 2 is identical, and linear laser device 4 is arranged on the offside of optical signal reception 2, at least two linear laser
The frequency of device 4 is different, and optical signal receives a laser that the 2 linear laser devices 4 receiving offside respectively send.By linear laser device 4
Frequency tune to open after, each touch location detection module can receive correspondence linear laser device 4, complete the scanning of luminous point 3.Reference
Fig. 8, optical signal reception 2 is at least two, and linear laser device 4 is one, as long as one layer of laser that linear laser device 4 is formed goes out
Ray covers the touch scope of touch pad 1.Signal processing module uses the mode of Time share scanning, and timesharing receives at least two
Optical signal receives a 2 reception information sent.Above-mentioned design can reduce the number of linear laser device 4, and then reduces cost.Figure
In 8, use three optical signals receptions 2, a linear laser device 4.
Light-sensitive element in optical signal of the present invention reception 2 is arranged on the most, touches precision the highest, and optical signal of the present invention connects
Receipts 2 are arranged on the most, touch precision the highest.Such as, 1) an optical signal reception 2 is set, optical signal reception 2 sets
Put four light-sensitive elements, then touch pad front forms four optical signal regions.Arranging an optical signal reception 2, optical signal connects
Be provided with n light-sensitive element in receipts 2, then touch pad front forms n optical signal region.2) two optical signals receptions 2 are set,
Be provided with n light-sensitive element in each optical signal reception 2, then touch pad front forms n × n optical signal region.Arrange four
Optical signal reception 2, is provided with n light-sensitive element in each optical signal reception 2, then touch pad front forms n4Individual optical signal district
Territory.So, touch pad can identify n4Individual luminous point, makes the present invention use simple structure, it is achieved touch function in high precision.
When the touch pad 1 of the present invention is widescreen or mosaic screen, optical signal reception 2 could be arranged to multiple, and light letter
Number receiving 2 can be arranged on touch pad 1 side edge, it is also possible to arrange at the middle part of touch pad 1 or other lateral location
Optical signal reception 2, in order in the light-sensitive element of each optical signal reception 2, at least one can receive the luminous point 3 at touch pad.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (10)
1. wireless touch system, including a touch pad, the touch location detection module of a detected touch point position, described touch position
Put detection module and include a signal processing module, it is characterised in that described touch location detection module also includes that an optical signal connects
Receiving head, described optical signal receives head and is provided with light-sensitive element, and described light-sensitive element connects described signal processing module；Described photosensitive
Element uses infrared receiving terminal；
Described optical signal receives head and includes at least four light-filtering channels；
Described light-filtering channels one end is provided with a light inlet, and the other end of described light-filtering channels is provided with described light-sensitive element, described filter
The conduit wall of optical channel is the conduit wall being made up of light screening material；
The light inlet of described light-filtering channels is towards described touch pad position.
Wireless touch system the most according to claim 1, it is characterised in that be additionally provided with one in described wireless touch system micro-
Type processor system；Forming one on described wireless described touch pad can be by the luminous point of described touch location detection module identification, institute
State after the optical signal that sends at luminous point received by least one the described light-sensitive element in described touch location detection module, produce
Touch signal, and touch signal is passed to described microprocessor system.
Wireless touch system the most according to claim 1, it is characterised in that: it is wireless that described microprocessor system connects one
Local area network communications module, wirelessly needs with the external world equipment of touch operation to carry out signal and is connected, it is achieved touch behaviour
Make function.
Wireless touch system the most according to claim 2, it is characterised in that: it is infrared that described microprocessor system connects one
Communication module, needs the infrared equipment of touch operation to carry out signal with the external world by the way of infrared transmission and is connected, it is achieved touch
Operating function.
5. according to the wireless touch system described in claim 1,2,3 or 4, it is characterised in that: the width within described light-filtering channels
Degree is: described light inlet width at one end more than described light-sensitive element institute width at one end, and width enters light described in oneself
Mouth institute is at one end at one end gradually reduced to described light-sensitive element；
Described light-sensitive element receives described light inlet towards the light in region, to form one effective in described light inlet front
Optical signal receiving area.
Wireless touch system the most according to claim 5, it is characterised in that: the light inlet of four described light-filtering channels towards
Described touch pad position, forms at least four optical signal receiving area in described touch pad front；And four optical signals connect
Receive region not exclusively overlapping or the most overlapping；Described at least four, light-filtering channels is arranged in order, and arrangement mode is described light
Quick element institute is the most adjacent, and described light inlet institute is the most adjacent；Described light-filtering channels is flat sector, described sector
Parallel with described touch pad place plane；Light-filtering channels described at least four is sequentially arranged in puts down with described touch pad place plane
In the plane of row, shape is in a row.
Wireless touch system the most according to claim 5, it is characterised in that: when the light-filtering channels of same row exists odd number
When individual described light-sensitive element receives the light of reflection at described luminous point, it is considered as the light that luminous point is positioned at the light-sensitive element place of centre
Signal area, described signal processing module produces touch signal, and touch signal passes to described microprocessor system, institute
The optical signal region stating the light-sensitive element place that microprocessor system will be located in centre is associated with on described touch pad.
Wireless touch system the most according to claim 5, it is characterised in that: include that optical signal described at least two receives
Head, optical signal described at least two receives the optical signal region corresponding to head and exists and intersect；Described signal processing module processes one
Optical signal receives header, obtains luminous point and is positioned at an optical signal region；Described signal processing module processes another optical signal and receives
Header, obtains luminous point and is positioned at another optical signal region, and described signal processing module produces touch signal, and is passed by touch signal
Passing described microprocessor system, described microprocessor system will be located in an optical signal region and hands over another optical signal region
The optical signal region that vent is put is associated with on described touch pad, and then determines luminous point position on a touchpad.
Wireless touch system the most according to claim 8, it is characterised in that: the optical signal of a luminous point is received by an optical signal
Described at least two of the same row of head, the light-sensitive element of light-filtering channels receives and identifies；Also head is received extremely by another optical signal
The light-sensitive element of a few described light-filtering channels receives and identifies；Then, described microprocessor system is judged as described luminous point position
In the overlapping region in the optical signal region of light-filtering channels described at least two of an optical signal reception same row, believe with another light
Number receive the overlapping region in optical signal region of at least one described light-filtering channels of head.
10. according to the wireless touch system described in claim 1,2,3 or 4, it is characterised in that: also include linear laser device, institute
Stating linear laser device and be arranged on the side of described touch pad, described linear laser device is formed in the range of the touch of described touch pad
One layer of laser emitting line parallel with described touch pad；
When touching part and touching touch pad, block laser emitting line, form luminous point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598910.3A CN106249967B (en) | 2011-06-07 | 2011-06-07 | Wireless touch system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598910.3A CN106249967B (en) | 2011-06-07 | 2011-06-07 | Wireless touch system |
| CN201110150374.8A CN102819356B (en) | 2011-06-07 | 2011-06-07 | Optical touch screen system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110150374.8A Division CN102819356B (en) | 2011-06-07 | 2011-06-07 | Optical touch screen system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106249967A true CN106249967A (en) | 2016-12-21 |
| CN106249967B CN106249967B (en) | 2019-04-30 |
Family
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110150374.8A Expired - Fee Related CN102819356B (en) | 2011-06-07 | 2011-06-07 | Optical touch screen system |
| CN201610598941.9A Expired - Fee Related CN106227391B (en) | 2011-06-07 | 2011-06-07 | Touch screen control system |
| CN201710191452.6A Expired - Fee Related CN107145264B (en) | 2011-06-07 | 2011-06-07 | Optical signal receiving head and application thereof |
| CN201610598910.3A Expired - Fee Related CN106249967B (en) | 2011-06-07 | 2011-06-07 | Wireless touch system |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110150374.8A Expired - Fee Related CN102819356B (en) | 2011-06-07 | 2011-06-07 | Optical touch screen system |
| CN201610598941.9A Expired - Fee Related CN106227391B (en) | 2011-06-07 | 2011-06-07 | Touch screen control system |
| CN201710191452.6A Expired - Fee Related CN107145264B (en) | 2011-06-07 | 2011-06-07 | Optical signal receiving head and application thereof |
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| Country | Link |
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| CN (4) | CN102819356B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075138A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | State identification method and device of target characteristics and electronic equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9367177B2 (en) * | 2013-06-27 | 2016-06-14 | Hong Kong Applied Science and Technology Research Institute Company Limited | Method and system for determining true touch points on input touch panel using sensing modules |
| CN105514766A (en) * | 2016-02-29 | 2016-04-20 | 北京仁光科技有限公司 | Large-angle uniform line laser sector modulation device |
| CN107283442B (en) * | 2017-08-07 | 2023-08-15 | 深圳欧沃机器人有限公司 | Control device and robot system |
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| US20060232830A1 (en) * | 2005-04-15 | 2006-10-19 | Canon Kabushiki Kaisha | Coordinate input apparatus, control method therefore, and program |
| CN101872271A (en) * | 2009-04-27 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Touch control system |
| CN101971128A (en) * | 2007-12-05 | 2011-02-09 | 阿尔梅瓦股份公司 | Interaction device for interaction between a screen and a pointer object |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101344827A (en) * | 2008-08-22 | 2009-01-14 | 李兴文 | Optical touch screen and touch pen |
| CN201465072U (en) * | 2009-04-04 | 2010-05-12 | 李兴文 | Virtual touch screen |
| CN102043575B (en) * | 2009-10-23 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Touch electronic device with optimization configuration function and optimization configuration method of touch electronic device |
| CN102004586B (en) * | 2010-11-23 | 2013-01-09 | 广东威创视讯科技股份有限公司 | Touch point positioning device and method |
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2011
- 2011-06-07 CN CN201110150374.8A patent/CN102819356B/en not_active Expired - Fee Related
- 2011-06-07 CN CN201610598941.9A patent/CN106227391B/en not_active Expired - Fee Related
- 2011-06-07 CN CN201710191452.6A patent/CN107145264B/en not_active Expired - Fee Related
- 2011-06-07 CN CN201610598910.3A patent/CN106249967B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060232830A1 (en) * | 2005-04-15 | 2006-10-19 | Canon Kabushiki Kaisha | Coordinate input apparatus, control method therefore, and program |
| CN101971128A (en) * | 2007-12-05 | 2011-02-09 | 阿尔梅瓦股份公司 | Interaction device for interaction between a screen and a pointer object |
| CN101872271A (en) * | 2009-04-27 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Touch control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075138A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | State identification method and device of target characteristics and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107145264A (en) | 2017-09-08 |
| CN106227391B (en) | 2019-09-17 |
| CN102819356B (en) | 2017-05-10 |
| CN106227391A (en) | 2016-12-14 |
| CN107145264B (en) | 2020-05-15 |
| CN106249967B (en) | 2019-04-30 |
| CN102819356A (en) | 2012-12-12 |
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Effective date of registration: 20201202 Address after: 274300 Zhangji Town Development Zone, Shan county, Heze City, Shandong Province Patentee after: Sui Meiqing Address before: 201111 Shanghai city Minhang District Yuanjiang Road No. 5500 building second room 577 Patentee before: SHANGHAI KE DOU ELECTRONIC TECHNOLOGY Co.,Ltd. |
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