CN106249967B - Wireless touch system - Google Patents
Wireless touch system Download PDFInfo
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- CN106249967B CN106249967B CN201610598910.3A CN201610598910A CN106249967B CN 106249967 B CN106249967 B CN 106249967B CN 201610598910 A CN201610598910 A CN 201610598910A CN 106249967 B CN106249967 B CN 106249967B
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- 230000003287 optical effect Effects 0.000 claims abstract description 233
- 238000001914 filtration Methods 0.000 claims abstract description 94
- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000012216 screening Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 9
- 210000004209 hair Anatomy 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
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- 239000011248 coating agent Substances 0.000 claims description 3
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- 230000008901 benefit Effects 0.000 description 7
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- 238000004378 air conditioning 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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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The present invention relates to electronic equipment more particularly to a kind of touch screens.Wireless touch system, touch location detection module including a touch tablet, a detected touch point position, touch location detection module includes a signal processing module, it is characterized in that, touch location detection module further includes that an optical signal receives head, optical signal receives head and is equipped with light-sensitive element, light-sensitive element connection signal processing module；Light-sensitive element uses infrared receiving terminal；It includes at least four light-filtering channels that optical signal, which receives head,；Light-filtering channels one end is equipped with a light inlet, and the other end of light-filtering channels is equipped with light-sensitive element, and the conduit wall of light-filtering channels is the conduit wall being made of light screening material；The light inlet of light-filtering channels is towards touch tablet position.Due to the adoption of the above technical scheme, the present invention is not only simple in structure, is low in cost, and can use less device.
Description
The applying date of the original application of the divisional application are as follows: on 06 07th, 2011, application No. is: 2011101503748, name
Referred to as: optical touch screen.
Technical field
The present invention relates to electronic equipment more particularly to a kind of touch screens.
Background technique
Increasingly developed with multimedia technology, touch-screen applications are more and more extensive, such as telecommunication bureau, bank, city street corner
Information inquiry, Industry Control, multimedia teaching etc..Touch screen is with sturdy and durable, reaction speed is fast, saving space, is easy to
The advantages that exchange.Using this technology, user is as long as lightly touching the picture and text on display screen with finger or other touch parts
It is able to achieve operation, to keep human-computer interaction more simple and direct, greatly facilitates user.
Existing touch screen mainly uses infrared touch panel.Infrared touch panel has performance steady relative to other touch screens
The series of advantages such as fixed, strong antijamming capability, service life length, precision height.Almost with overwhelming advantage, other touches are gradually captured
The market of screen.But there are still fatefulue weakness to be difficult to overcome for infrared touch panel.In addition infrared emission pipe is filled on the outside of screen,
The compactedness of structure is influenced, inconvenient use on small-sized screen, such as inconvenience is on the screen of mobile phone and palm PC.And
And infrared touch panel cost is still higher.
Summary of the invention
The purpose of the present invention is to provide a kind of wireless touch systems, to solve the above technical problems.
Technical problem solved by the invention can be realized using following technical scheme:
Wireless touch system, the touch location detection module including a touch tablet, a detected touch point position, the touch
Position detecting module includes a signal processing module, which is characterized in that the touch location detection module further includes an optical signal
Head is received, the optical signal receives head and is equipped with light-sensitive element, and the light-sensitive element connects the signal processing module；The light
Quick element uses infrared receiving terminal；
It includes at least four light-filtering channels that the optical signal, which receives head,；
Described light-filtering channels one end is equipped with a light inlet, and the other end of the light-filtering channels is equipped with the light-sensitive element, institute
The conduit wall for stating light-filtering channels is the conduit wall being made of light screening material；
The light inlet of the light-filtering channels is towards the touch tablet position.
A microprocessor system is additionally provided in the wireless touch system；
It (is to touch with luminous point that the luminous point that one can be identified by the touch location detection module is formed on the touch tablet
Point), the optical signal light-sensitive element described at least one of described touch location detection module issued at the luminous point receives
Afterwards, touch signal is generated, and touch signal is passed into the microprocessor system；The microprocessor system is considered as institute
Optical signal corresponding to the light inlet of the light-filtering channels where luminous point is located at the light-sensitive element for receiving the optical signal is stated to connect
It receives in region, and optical signal receiving area is associated on the touch tablet.
Above-mentioned design can be easy to control without reference to background picture, especially suitable for electric appliances such as control television set, air-conditionings.
Above-mentioned design uses light-sensitive element scanning point, and touch location detection module is made to have of simple structure and low cost, installation and debugging
It is simple to wait remarkable advantages.
The light-sensitive element can use infrared receiving terminal.To simplify system and reduce the signal of touch location detection module
Treating capacity.
Width inside the light-filtering channels are as follows: the light inlet width at one end be greater than where the light-sensitive element
The width of one end, and width is gradually reduced to the light-sensitive element at one end at one end from the light inlet；It is described photosensitive
Element receives the light inlet towards the light in region, so as to form an effective optical signal reception area in front of the light inlet
Domain.
The light inlet of four light-filtering channels towards the touch tablet position, formed in front of the touch tablet to
Few four optical signal receiving areas；And four optical signal receiving areas are not exclusively overlapped or are not overlapped completely；
At least four light-filtering channels are arranged successively, and arrangement mode is adjacent at one end for the light-sensitive element institute, described
Light inlet institute is adjacent at one end.Above-mentioned design makes optical signal receiving area towards unanimously.
At least four light-filtering channels are arranged successively in a row.Optical signal receives the avris that touch tablet is arranged in head, into
Row scanning point.
At least four light-filtering channels are arranged successively at least two rows of.Before touch tablet is arranged in optical signal reception head
Side, is scanned luminous point.
The light-filtering channels are flat sector, and the fan-shaped surface is parallel with plane where the touch tablet；At least four
The light-filtering channels are sequentially arranged in the plane parallel with plane where the touch tablet, and shape is in a row.
The light-filtering channels may be hollow tubular, and at least four light-filtering channels are sequentially arranged in and the touch
In the parallel plane of plane where plate, shape is in a row.
The light inlet of the light-filtering channels exists towards the touch tablet, corresponding optical signal receiving area corresponding (mapping)
On the touch tablet.
The light-filtering channels are taper, and the light-filtering channels are pyramid.
The light inlet is equipped with optical filter.To filter out irrelevant optical signal.
At least four light inlets that the optical signal receives head use same optical filter.
The channel of the light-filtering channels is kept away equipped with reflective layer, to enhance light.To guarantee that light-filtering channels are corresponding
Light-sensitive element can receive the optical signal issued at the corresponding optical signal region of light-filtering channels.
The channel of the light-filtering channels, which is kept away, is equipped with dark coating, to absorb light.To avoid light-filtering channels corresponding
Light-sensitive element receive at the corresponding optical signal region of other light-filtering channels issue optical signal.
The microprocessor system uses the microprocessor system of television set top box.Wireless touch system of the invention
System carries out signal connection with television set top box, and shares microprocessor system with television set top box, realizes to television set
Touch operation.
The microprocessor system uses the microprocessor system of computer.Wireless touch system of the invention and computer
Signal connection is carried out, and shares microprocessor system with computer, realizes the touch operation to computer.
The microprocessor system connects a wireless local area network communications module, wirelessly needs to touch with the external world
The equipment for touching operation carries out signal connection, realizes touch operation function.
The microprocessor system connects a bluetooth communication, needs to touch with the external world by way of Bluetooth transmission
The bluetooth equipment of operation carries out signal connection, realizes touch operation function.
The microprocessor system connects an infrared communication module, needs to touch with the external world by way of Infrared Transmission
The infrared equipment of operation carries out signal connection, realizes touch operation function.
When there are the light that light-sensitive element described in even number receives reflection at the luminous point in the light-filtering channels of same row
When, it is considered as the middle part in the optical signal region that luminous point is located at where intermediate two light-sensitive elements, the signal processing module produces
Raw touch signal, and touch signal is passed into the microprocessor system, the microprocessor system will be located at centre
It is associated on the touch tablet in the middle part of optical signal receiving area where two light-sensitive elements.
When there are the light that light-sensitive element described in odd number receives reflection at the luminous point in the light-filtering channels of same row
When, it is considered as the optical signal region that luminous point is located in the middle where light-sensitive element, the signal processing module generates touch signal, and
Touch signal is passed into the microprocessor system, the microprocessor system will be located in the middle where light-sensitive element
Optical signal region be associated on the touch tablet.
In order to further increase touch screen precision, the light inlet of the light-filtering channels of at least two of same row is in the touching
At least two optical signal receiving areas are formed in front of template, and there are when overlapping region, at least two light-filtering channels
When light-sensitive element receives the optical signal issued at the luminous point and response, the microprocessor system is considered as the luminous point position
In the overlapping region of two signal receiving areas.The overlapping region can be two optical signal receiving areas and partly overlap
It constitutes, is also possible to three, four or more optical signal receiving areas partly overlap composition.
Head is received including at least two optical signals, at least two optical signals receive optical signal area corresponding to head
Domain, which exists, to intersect.
At least two optical signals receive the two sides that head is separately positioned on the touch tablet.
At least two optical signals receive the front that head is separately positioned on the touch tablet.
The signal processing module handles an optical signal and receives head information, obtains luminous point and is located at an optical signal region；It is described
Another optical signal of signal processing module processing receives head information, obtains luminous point and is located at another optical signal region, the signal processing
Module generates touch signal, and touch signal is passed to the microprocessor system, and the microprocessor system is by position
It is associated on the touch tablet, and then determines in the optical signal region of an optical signal region and another optical signal region crossover location
The position of luminous point on a touchpad.
The optical signal of one luminous point is received the photosensitive member of at least two light-filtering channels of the same row of head by an optical signal
Part receives and identifies；Also the light-sensitive element that at least one light-filtering channels of head are received by another optical signal receives and identifies；
Then, the microprocessor system is judged as that the luminous point is located at least two optical filterings that an optical signal receives a same row
The overlapping region in the optical signal region in channel receives the optical signal area of at least one light-filtering channels of head with another optical signal
The overlapping region in domain.
By increasing above-mentioned algorithm, touch precision can be further effectively improved.
Further include a touch part, touches part and generate light beam, the light beam forms a luminous point on the touch tablet.It is described
Laser can be used by touching the light beam that part generates, and form luminous point on a touchpad by laser.
The touch part can use remote touch pen, and the remote touch pen includes laser, power supply, also have signal
Module occurs, module, signal generating module connecting laser occur for power supply connection signal, and signal generating module generates the electricity of oscillation
Signal, and drive the laser signal of laser sending flashing corresponding with electric signal.Remote touch pen is by remotely controlling light
Point realizes corresponding remote operation to wireless touch system.Remote touch pen is equipped with switch.
Touching part includes a light-emitting component, touches part and triggers the light-emitting component hair for touching part when touching the touch tablet
Light forms luminous point on a touchpad.
The touch part can use short range felt pen, and the short range touch tablet includes a shell, power supply, switch and the member that shines
Part, the luminous situation of switch control light-emitting component；Switch is connect with the touch end of short range felt pen, is touched end and is being touched touch tablet
When trigger switch, light-emitting component shine, form luminous point on a touchpad.Short range felt pen shines when contacting with touch tablet,
A luminous point is formed on touch tablet, luminous point is moved with the movement of short range felt pen, to realize short range felt pen pair by luminous point
The touch operation of wireless touch system.
It further include linear laser device, the side of the touch tablet, the linear laser device is arranged in the linear laser device
One layer of laser emitting line parallel with the touch tablet is formed within the scope of the touch of the touch tablet；
When touching part touch touch tablet, laser emitting line is blocked, luminous point is formed.
The linear laser device uses a wordline shape laser, and a wordline shape laser can be set to be connect in the optical signal
Receive the opposite side of head.When touch tablet is larger, the wordline shape laser can be set to multiple, multiple wordline shape lasers
It can be set in the side of touch tablet, also can according to need setting, as long as one layer of the formation of multiple wordline shape lasers is swashed
The touch range of light emergent ray covering touch tablet.
The one wordline shape laser is at least two, and number is identical as the optical signal reception number of head, described
The opposite side that the optical signal receives head is arranged in one wordline shape laser, the sending of at least two wordline shape lasers
The flicker frequency of light is different, and the optical signal receives head and receives the laser that a wordline shape laser of opposite side issues respectively.By one
After the frequency of wordline shape laser tunes to open, each touch location detection module can receive corresponding wordline shape laser, complete
The scanning of luminous point.
It is at least two that the optical signal, which receives head, and the wordline shape laser is one, as long as this wordline shape swashs
The touch range for one layer of laser emitting line covering touch tablet that light device is formed.The signal processing module uses Time share scanning
Mode, timesharing receives at least two optical signals and receives the reception information that hairs are sent.Above-mentioned design can reduce linear sharp
The number of light device, and then reduce cost.
The utility model has the advantages that due to the adoption of the above technical scheme, the present invention is not only simple in structure, is low in cost, and can use
Less device realizes the function that high-precision touches.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram that optical signal of the present invention receives head；
Fig. 2 is another structural schematic diagram that optical signal of the present invention receives head；
Fig. 3 is a kind of structural schematic diagram of the invention；
Fig. 4 is another structural side view of the invention；
Fig. 5 is another structural schematic diagram of the invention；
Fig. 6 is another structural schematic diagram of the invention；
Fig. 7 is another structural schematic diagram of the invention；
Fig. 8 is another structural schematic diagram of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating that the present invention is further explained.
Referring to figs. 1 to Fig. 8, wireless touch system, the touch location inspection including a touch tablet 1, a detected touch point position
Module, a microprocessor system are surveyed, touch location detection module includes a signal processing module, and touch location detection module is also
Head 2 is received including an optical signal, optical signal receives head 2 and is equipped with light-sensitive element, light-sensitive element connection signal processing module.Light letter
Number receive head 2 include at least four light-filtering channels 21.21 one end of light-filtering channels is equipped with a light inlet, the other end of light-filtering channels 21
Equipped with light-sensitive element 22, the conduit wall of light-filtering channels 21 is the conduit wall being made of light screening material.Light-sensitive element 22 is received into light
Mouth is towards the light in region, so as to form an effective optical signal receiving area in front of light inlet.Four light-filtering channels 21
Light inlet forms at least four optical signal receiving areas towards 1 position of touch tablet in front of touch tablet 1.And four light letters
Number receiving area is not exclusively overlapped or is not overlapped completely.
A luminous point 3 that can be identified by the touch location detection module is formed on touch tablet 1, is touch point with luminous point 3.
After the optical signal issued at luminous point 3 is received by least one light-sensitive element 22 in touch location detection module, generates and touch letter
Number, and touch signal is passed into microprocessor system.Light-sensitive element 22 can use infrared receiving terminal.With simplify system and
Reduce the signal processing amount of touch location detection module.
Each light-sensitive element 22 in detection module can constantly Time share scanning luminous point 3 whether there is, and there are positions.
It is right positioned at the light inlet institute for the 22 place light-filtering channels 21 of light-sensitive element for receiving optical signal that microprocessor system is considered as luminous point 3
In the optical signal receiving area answered, and optical signal receiving area is associated on touch tablet 1.Above-mentioned design can be without reference to background
Picture, it is easy to control, especially suitable for electric appliances such as control television set, air-conditionings.Above-mentioned design uses 22 scanning point of light-sensitive element
3, make touch location detection module that there are the remarkable advantages such as of simple structure and low cost, installation and debugging are simple.
Referring to Fig.1, Fig. 2, the width inside light-filtering channels 21 are as follows: light inlet width at one end be greater than light-sensitive element 22
Width at one end, and width is gradually reduced to light-sensitive element 22 at one end at one end from light inlet.At least four filters
Optical channel 21 is arranged successively, and arrangement mode is adjacent at one end for 22 institute of light-sensitive element, and light inlet institute is adjacent at one end.
Referring to Fig.1, Fig. 3, at least four light-filtering channels 21 are arranged successively in a row.Realize that optical signal receives the setting of head 2 and exists
The avris of touch tablet 1 is scanned luminous point 3.Light-filtering channels 21 are flat sector, and fan-shaped surface and 1 place plane of touch tablet are flat
Row；At least four light-filtering channels 21 are sequentially arranged in the plane parallel with 1 place plane of touch tablet, and shape is in a row.It filters logical
Road 21 or hollow tubular, at least four light-filtering channels 21 are sequentially arranged in the plane parallel with 1 place plane of touch tablet
On, shape is in a row.Referring to Fig. 3, it is equipped with an optical signal at an avris of touch tablet 1 and receives head 2, optical signal receives head 2 and wraps
Four light-sensitive elements 22 are included, four light-sensitive elements 22 correspond to optical signal region 1a, optical signal region 1b, light letter on touch tablet 1
Number region 1c, optical signal region 1d.When the luminous point 3 for touching part formation is at the 1a of optical signal region, light-sensitive element 2a is received
The light reflected to luminous point 3, signal processing module receive the reception information of light-sensitive element 2a transmission, determine that touch signal is believed in light
Within the scope of number region 1a.
Referring to Fig. 2, Fig. 4, at least four light-filtering channels 21 are arranged successively at least two rows of.Realize that optical signal receives head 2 and sets
It sets in the front of touch tablet 1, is scanned luminous point 3.The light inlet of light-filtering channels 21 is towards touch tablet 1, corresponding optical signal
Receiving area corresponding (mapping) is on touch tablet 1.Light-filtering channels 21 are taper, and light-filtering channels 21 are pyramid.
Light inlet is equipped with optical filter.To filter out irrelevant optical signal.At least four of optical signal reception head 2 enter light
Mouth uses same optical filter.The channel of light-filtering channels 21 is kept away equipped with reflective layer, to enhance light.To guarantee that light-filtering channels 21 are right
The light-sensitive element 22 answered can receive the optical signal issued at the corresponding optical signal region of light-filtering channels 21.The channel of light-filtering channels 21
It keeps away and is equipped with dark coating, to absorb light.To avoid the corresponding light-sensitive element 22 of light-filtering channels 21 from receiving other light-filtering channels
The optical signal issued at 21 corresponding optical signal regions.
Microprocessor system uses the microprocessor system of television set top box.Wireless touch system of the invention with
Television set top box carries out signal connection, and shares microprocessor system with television set top box, realizes the touching to television set
Touch operation.Microprocessor system uses the microprocessor system of computer.Wireless touch system and computer of the invention carries out
Signal connection, and microprocessor system is shared with computer, realize the touch operation to computer.Microprocessor system connection one
Wireless local area network communications module wirelessly needs the equipment of touch operation to carry out signal connection with the external world, realizes touching
Touch operating function.Microprocessor system connects a bluetooth communication, needs to touch with the external world by way of Bluetooth transmission
The bluetooth equipment of operation carries out signal connection, realizes touch operation function.Microprocessor system connects an infrared communication module,
Signal connection is carried out with the extraneous infrared equipment for needing touch operation by way of Infrared Transmission, realizes touch operation function.
When receiving the light reflected at luminous point 3 there are even number light-sensitive element 22, it is considered as luminous point 3 and is located at centre two
The middle part in the optical signal region where light-sensitive element 22, signal processing module generates touch signal, and touch signal is passed to
Microprocessor system, microprocessor system will be in the optical signal receiving areas where being located at intermediate two light-sensitive elements 22
Portion is associated on touch tablet 1.Such as in Fig. 5, luminous point 3 is located at the medium position of optical signal region 1a and optical signal region 1b, light
Quick element 2a and light-sensitive element 2b receives the light of the reflection of luminous point 3, and signal processing module receives light-sensitive element 2a and light respectively
The reception information that quick element 2b is sent determines optical signal region 1a of the touch signal on touch tablet 1 according to above-mentioned judgment method
With the middle part of optical signal region 1b.
When receiving the light reflected at luminous point 3 there are odd number light-sensitive element 22, it is considered as luminous point 3 and is located in the middle light
Optical signal region where quick element 22, signal processing module generates touch signal, and touch signal is passed to miniature processing
Optical signal region where being located in the middle light-sensitive element 22 is associated on touch tablet 1 by device system, microprocessor system.Example
In Fig. 6, although luminous point 3 is located at the 1b of optical signal region, light-sensitive element 2a, light-sensitive element 2b, light-sensitive element 2c are received
The light reflected to luminous point 3, signal processing module receive light-sensitive element 2a, light-sensitive element 2b, light-sensitive element 2c respectively and send
Information is received, according to above-mentioned judgment method, determines touch signal in the optical signal region 1b model where intermediate light-sensitive element 2b
In enclosing.
In order to further increase touch screen precision, the light inlet of at least two light-filtering channels 21 of same row is in touch tablet 1
Front forms at least two optical signal receiving areas, and there are photosensitive members when overlapping region, at least two light-filtering channels 21
When part 22 receives the optical signal issued at luminous point 3 and response.Microprocessor system is considered as luminous point 3 and receives positioned at two signals
The overlapping region in region.Overlapping region can be two optical signal receiving areas and partly overlap composition, be also possible to three, four
Or more optical signal receiving areas partly overlap composition.
Referring to Fig. 7, the present invention may include that at least two optical signals receive head 2, and it is right that at least two light meet 2 institutes of signal receipts head
The optical signal region answered, which exists, to intersect.At least two optical signals receive the two sides that head 2 is separately positioned on touch tablet 1.At least two
Optical signal receives the front that head 2 is separately positioned on touch tablet 1.Signal processing module handles the information that an optical signal receives head 2, obtains
It is located at an optical signal region to luminous point 3, signal processing module handles the information that another optical signal receives head, obtains luminous point 3 and be located at
Another optical signal region, signal processing module (or microprocessor system) be considered as luminous point 3 be located at an optical signal region with it is another
Optical signal region crossover location, signal processing module generate touch signal.And touch signal is passed into microprocessor system,
The optical signal region for being located at an optical signal region and another optical signal region crossover location is associated with touching by microprocessor system
In template 1, and then determine position of the luminous point 3 on touch tablet 1.
Such as in Fig. 7, two side Jiao Chu of touch tablet 1 are respectively equipped with an optical signal and receive head 2, and each optical signal connects
Receiving head 2 includes four light-sensitive elements.Four light-sensitive elements that the optical signal in left side receives head 2 form optical signal on touch tablet 1
Region 1a, optical signal region 1b, optical signal region 1c, optical signal region 1d.The optical signal on right side receives four photosensitive members of head 2
Part forms optical signal region 1e, optical signal region 1f, optical signal region 1g, optical signal region 1h on touch tablet 1.Signal processing
The optical signal that module first handles left side receives the reception information that the light-sensitive element in head 2 is sent, and obtains luminous point 3 and is located at optical signal area
Within the scope of the 1b of domain.Then, the optical signal on signal processing module processing right side receives the reception letter that the light-sensitive element in head 2 is sent
Breath, obtains luminous point 3 and is located within the scope of the 1g of optical signal region.Finally, signal processing module determines that touch signal is located at optical signal area
The overlapping of domain 1b and optical signal region 1g.
The optical signal of one luminous point 3 is received the photosensitive member of at least two light-filtering channels 21 of the same row of head 2 by an optical signal
Part 22 receives and identifies.Also the light-sensitive element that at least one light-filtering channels of head are received by another optical signal receives and identifies.Then,
Microprocessor system is judged as that luminous point 3 is located at the light letter that an optical signal receives at least two light-filtering channels 21 of the same row of head 2
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 that another optical signal receives at least two light-filtering channels of head receives and identifies.Position locating for luminous point
Setting is also, and another optical signal receives the overlapping region that head is also possible to the optical signal region of two light-filtering channels.
The formation of luminous point 3 can take various forms, for example touch part and generate light beam, and light beam forms one on touch tablet 1
A luminous point 3.Laser can be used by touching the light beam that part generates, and luminous point 3 is formed on touch tablet 1 by laser.Touching part can be with
Using remote touch pen, remote touch pen includes laser, power supply, also has signal generating module, and power supply connection signal occurs
Module, signal generating module connecting laser, signal generating module generate the electric signal of oscillation, and laser is driven to issue and electricity
The laser signal of the corresponding flashing of signal.Remote touch pen is realized wireless touch system corresponding by remotely controlling luminous point 3
Remote operation.Remote touch pen is equipped with switch.
Touching part includes a light-emitting component, and the light-emitting component that touch part triggers touch part when touching touch tablet 1 shines,
Luminous point 3 is formed on touch tablet 1.Short range felt pen can be used by touching part, and short range felt pen includes a shell, power supply, switch and hair
Optical element, the luminous situation of switch control light-emitting component；Switch is connect with the touch end of short range felt pen, is touched end and is being touched touching
Trigger switch when template 1, light-emitting component shine, and luminous point 3 is formed on touch tablet 1.Short range felt pen with touch tablet 1 when contacting
It shines, forms a luminous point 3 on touch tablet 1, luminous point 3 is moved with the movement of short range felt pen, to be realized closely by luminous point 3
Touch operation of the journey felt pen to wireless touch system.
It further include linear laser device 4, the side of touch tablet 1 is arranged in linear laser device 4, linear referring to Fig. 3, Fig. 5, Fig. 6
Laser 4 forms one layer of laser emitting line parallel with touch tablet 1 within the scope of the touch of touch tablet 1.Linear laser device 4 is preferred
One wordline shape laser blocks laser emitting line, forms luminous point 3 when touching part touch touch tablet 1.Linear laser device 4 can be with
The opposite side that optical signal receives head 2 is set.When touch tablet 1 is larger, linear laser device 4 can be set to it is multiple, it is multiple linear
Laser 4 can be set in the side of touch tablet 1, also can according to need setting, as long as the one of the formation of multiple linear laser devices 4
The touch range of layer laser emitting line covering touch tablet 1.Referring to Fig. 7, linear laser device 4 is at least two, and number with
The number that optical signal receives head 2 is identical, and the opposite side that optical signal receives head 2, at least two linear lasers are arranged in linear laser device 4
The frequency of device 4 is different, and optical signal receives head 2 and receives the laser that the linear laser device 4 of opposite side issues respectively.By linear laser device 4
Frequency tune to open after, each touch location detection module can receive corresponding linear laser device 4, complete the scanning of luminous point 3.Reference
Fig. 8, it is at least two that optical signal, which receives head 2, and linear laser device 4 is one, as long as one layer of laser that linear laser device 4 is formed goes out
The touch range of ray covering touch tablet 1.For signal processing module by the way of Time share scanning, timesharing receives at least two
Optical signal receives the reception information that head 2 is sent.Above-mentioned design can reduce the number of linear laser device 4, and then reduce cost.Figure
In 8, head 2, a linear laser device 4 are received using three optical signals.
Optical signal of the present invention receives the light-sensitive element setting in head 2 more, touches that precision is higher, and optical signal of the present invention connects
The setting of head 2 is received more, it is also higher to touch precision.For example, 1) optical signal, which is arranged, receives head 2, optical signal receives to be set in head 2
Four light-sensitive elements are set, then form four optical signal regions in front of touch tablet.One optical signal is set and receives head 2, optical signal connects
It receives and is equipped with n light-sensitive element in head 2, then form n optical signal region in front of touch tablet.2) two optical signals are set and receive head 2,
Each optical signal, which receives, is equipped with n light-sensitive element in head 2, then n × n optical signal region is formed in front of touch tablet.Setting four
Optical signal receives head 2, and each optical signal, which receives, is equipped with n light-sensitive element in head 2, then n is formed in front of touch tablet4A optical signal area
Domain.In this way, touch tablet can identify n4A luminous point makes the present invention using simple structure, realizes high-precision touch function.
When touch tablet 1 of the invention be widescreen or mosaic screen when, optical signal receive head 2 can be set to it is multiple, and light believe
Number receiving head 2 can be set in 1 side edge of touch tablet, can also be arranged in the middle part of touch tablet 1 or other lateral locations
Optical signal receives head 2, can receive the luminous point 3 at touch tablet so that each optical signal receives at least one in the light-sensitive element of head 2.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (46)
1. wireless touch system, the touch location detection module including a touch tablet, a detected touch point position, the touch position
Setting detection module includes a signal processing module, which is characterized in that the touch location detection module further includes that an optical signal connects
Head is received, the optical signal receives head and is equipped with light-sensitive element, and the light-sensitive element connects the signal processing module；It is described photosensitive
Element uses infrared receiving terminal；It includes at least four light-filtering channels that the optical signal, which receives head,；Described light-filtering channels one end is equipped with
One light inlet, the other end of the light-filtering channels are equipped with the light-sensitive element, and the conduit wall of the light-filtering channels is by lightproof material
Expect the conduit wall constituted；The light inlet of the light-filtering channels is towards the touch tablet position.
2. wireless touch system according to claim 1, which is characterized in that it is micro- to be additionally provided with one in the wireless touch system
Type processor system；A luminous point that can be identified by the touch location detection module is formed on the touch tablet, at the luminous point
After the optical signal of sending light-sensitive element described at least one of described touch location detection module receives, generates and touch letter
Number, and touch signal is passed into the microprocessor system.
3. wireless touch system according to claim 2, which is characterized in that the microprocessor system is considered as the light
Optical signal reception area corresponding to the light inlet of the light-filtering channels where point is located at the light-sensitive element for receiving the optical signal
In domain, and optical signal receiving area is associated on the touch tablet.
4. wireless touch system according to claim 1, which is characterized in that the width inside the light-filtering channels are as follows: institute
State light inlet width at one end be greater than the width of light-sensitive element institute at one end, and width is from the light inlet place one
It holds to the light-sensitive element and is gradually reduced at one end.
5. wireless touch system according to claim 1, which is characterized in that the light-sensitive element receives the light inlet court
Light into region makes to form an effective optical signal receiving area in front of the light inlet, four light-filtering channels
Light inlet forms at least four optical signal receiving areas towards the touch tablet position in front of the touch tablet.
6. wireless touch system according to claim 5, which is characterized in that four optical signal receiving areas are incomplete
Overlapping is not overlapped completely.
7. wireless touch system according to claim 1, which is characterized in that at least four light-filtering channels are successively arranged
Column, arrangement mode is adjacent at one end for the light-sensitive element institute, and the light inlet institute is adjacent at one end.
8. wireless touch system according to claim 1, which is characterized in that at least four light-filtering channels are arranged successively
It is in a row.
9. wireless touch system according to claim 1, which is characterized in that the light-filtering channels are flat sector, institute
It is parallel with plane where the touch tablet to state fan-shaped surface.
10. wireless touch system according to claim 9, which is characterized in that at least four light-filtering channels are successively arranged
It is listed in the plane parallel with plane where the touch tablet, shape is in a row.
11. wireless touch system according to claim 1, which is characterized in that the light-filtering channels are hollow tubular.
12. wireless touch system according to claim 1, which is characterized in that be equipped at an avris of the touch tablet
One optical signal receives head, and it includes four light-sensitive elements that the optical signal, which receives head, and four light-sensitive elements are distinguished on a touchpad
Corresponding different optical signal region；
When the luminous point for touching part formation is at a certain optical signal region, corresponding light-sensitive element receives the light of light point reflection
Line, signal processing module receive the reception information of light-sensitive element transmission, determine touch signal in the corresponding light letter of the light-sensitive element
In number regional scope.
13. wireless touch system according to claim 4, which is characterized in that the light-filtering channels are taper or pyramid
Shape.
14. wireless touch system according to claim 1, which is characterized in that the light inlet is equipped with optical filter.
15. wireless touch system according to claim 14, which is characterized in that the optical signal receives at least four of head
The light inlet uses same optical filter.
16. wireless touch system according to claim 1, which is characterized in that the conduit wall of the light-filtering channels is set
There are reflective layer or dark coating.
17. wireless touch system according to claim 1, which is characterized in that wireless touch system and television set top box
Signal connection is carried out, and shares microprocessor system with television set top box, realizes the touch operation to television set.
18. wireless touch system according to claim 1, which is characterized in that the wireless touch system and computer carry out
Signal connection, and microprocessor system is shared with computer, realize the touch operation to computer.
19. wireless touch system according to claim 2, which is characterized in that the microprocessor system connects a nothing
Line local area network communications module, bluetooth communication or infrared communication module.
20. wireless touch system according to claim 2, which is characterized in that even when existing in the light-filtering channels of same row
When several light-sensitive elements receive the light reflected at the luminous point, it is considered as luminous point and is located at intermediate two light-sensitive elements
The middle part in the optical signal region at place, the signal processing module generate touch signal, and touch signal are passed to described micro-
Type processor system, the microprocessor system will be positioned at the optical signal receiving areas where intermediate two light-sensitive elements
Middle part be associated on the touch tablet.
21. wireless touch system according to claim 2, which is characterized in that exist when in the light-filtering channels of same row
When light-sensitive element described in odd number receives the light reflected at the luminous point, it is considered as luminous point and is located in the middle where light-sensitive element
Optical signal region, the signal processing module generates touch signal, and touch signal is passed to the microprocessor system
System, the optical signal region where the microprocessor system will be located in the middle light-sensitive element is associated on the touch tablet.
22. wireless touch system according to claim 2, which is characterized in that described filter of at least two of same row is led to
The light inlet in road forms at least two optical signal receiving areas in front of the touch tablet, and there are when overlapping region, and at least two
When light-sensitive element in a light-filtering channels receives the optical signal issued at the luminous point and response, the microprocessor
System is considered as the overlapping region that the luminous point is located at two signal receiving areas.
23. according to claim 1 to wireless touch system described in any one of 22, which is characterized in that the touch location
Detection module includes that at least two optical signals receive head, and at least two optical signals receive optical signal area corresponding to head
Domain, which exists, to intersect.
24. wireless touch system according to claim 23, which is characterized in that at least two optical signals receive head point
The two sides, front or side edge of the touch tablet are not set.
25. wireless touch system according to claim 2, which is characterized in that the signal processing module handles light letter
Number receive head information, obtain luminous point and be located at an optical signal region；The signal processing module handles another optical signal and receives head letter
Breath obtains luminous point and is located at another optical signal region, and the signal processing module generates touch signal, and touch signal is passed to
The microprocessor system, the microprocessor system will be located at an optical signal region and intersect position with another optical signal region
The optical signal region set is associated on the touch tablet, and then determines position of the luminous point on the touch tablet.
26. wireless touch system according to claim 25, which is characterized in that the optical signal of a luminous point is connect by an optical signal
The light-sensitive element for receiving at least two light-filtering channels of the same row of head receives and identifies；Also head is received by another optical signal
The light-sensitive element of at least one light-filtering channels receives and identifies；Then, the microprocessor system is judged as the luminous point
The overlapping region that the optical signal region of at least two light-filtering channels of a same row is received positioned at an optical signal, with another light
Signal receives the overlapping region in the optical signal region of at least one light-filtering channels of head.
27. according to claim 1 to wireless touch system described in any one of 22, which is characterized in that the wireless touch
System further includes a touch part, and the touch part generates light beam, and the light beam forms a luminous point on the touch tablet.
28. wireless touch system according to claim 27, which is characterized in that the touch part uses remote touch pen,
The remote touch pen includes laser, power supply, also has signal generating module, and module, signal hair occur for power supply connection signal
Raw module connecting laser, signal generating module generate the electric signal of oscillation, and it is corresponding with electric signal to drive laser to issue
Flashing laser signal, the remote touch pen realizes wireless touch system corresponding long-range by remotely controlling luminous point
Operation.
29. wireless touch system according to claim 27, which is characterized in that the touch part uses short range felt pen,
The short range felt pen includes a shell, power supply, switch and light-emitting component, and the luminous situation of switch control light-emitting component is described close
The switch of journey felt pen is connect with the touch end of the short range felt pen, touches end trigger switch when touching touch tablet, is shone
Element shines, and forms luminous point on the touch tablet；
The short range felt pen shines when contacting with the touch tablet, forms a luminous point on a touchpad, luminous point is touched with short range
It touches the movement of pen and moves, to realize touch operation of the short range felt pen to wireless touch system by luminous point.
30. wireless touch system according to claim 27, which is characterized in that the touch part further includes linear laser
The side of the touch tablet, touch range of the linear laser device in the touch tablet is arranged in device, the linear laser device
One layer of laser emitting line parallel with the touch tablet of interior formation blocks laser and goes out when the touch part touches the touch tablet
Ray forms luminous point.
31. wireless touch system according to claim 30, which is characterized in that the linear laser device uses a wordline shape
The opposite side that the optical signal receives head is arranged in laser, a wordline shape laser.
32. wireless touch system according to claim 31, which is characterized in that the wordline shape laser be set as to
Two few, the side of the touch tablet is arranged in multiple wordline shape lasers.
33. wireless touch system according to claim 32, which is characterized in that the linear laser device number and the light
The number that signal receives head is identical, and the flicker frequency of the light of the sending of at least two wordline shape lasers is different, described
Optical signal receives head and receives the laser that the wordline shape laser of opposite side issues respectively.
34. wireless touch system according to claim 31, which is characterized in that it is at least two that the optical signal, which receives head,
A, the wordline shape laser is one, is touched as long as one layer of laser emitting line that this wordline shape laser is formed covers
The touch range of plate.
35. according to claim 1 to wireless touch system described in any one of 22, which is characterized in that the signal processing
By the way of Time share scanning, timesharing receives at least two optical signals and receives the reception information that hair is sent module.
36. according to claim 1 to wireless touch system described in any one of 22, which is characterized in that when touch tablet is width
Screen or when mosaic screen, optical signal receive head and are equipped with multiple, and optical signal receives head and is arranged in touch tablet side edge or touch
The middle part of plate.
37. linear laser system, including touch a part, a touch tablet, a touch location detection module, which is characterized in that described
Touch tablet includes linear laser device, and the side of touch tablet is arranged in the linear laser device, and the linear laser device is in the touching
One layer of laser emitting line parallel with the touch tablet is formed within the scope of the touch of template；The touch location detection module includes
One optical signal receives head, and the optical signal receives head and is equipped with light-sensitive element, and the light-sensitive element connects a signal processing module；
It includes at least four light-filtering channels that the optical signal, which receives head, and described light-filtering channels one end is equipped with a light inlet, and described filter is led to
The other end in road is equipped with the light-sensitive element, and the light-sensitive element receives the light inlet towards the light in region, makes described
An effective optical signal receiving area is formed in front of light inlet；The light inlet of the light-filtering channels is in place towards the touch tablet institute
It sets, forms the optical signal receiving area in front of the touch tablet, the optical signal receiving area is not exclusively overlapped or complete
It is not overlapped entirely.
38. the linear laser system according to claim 37, which is characterized in that when the touch part touches the touch tablet
When, laser emitting line is blocked, luminous point is formed.
39. the linear laser system according to claim 37, which is characterized in that the linear laser device uses a wordline shape
The opposite side that the optical signal receives head is arranged in laser, a wordline shape laser.
40. linear laser system according to claim 39, which is characterized in that the wordline shape laser be set as to
Two few, the side of touch tablet is arranged in multiple wordline shape lasers.
41. linear laser system according to claim 40, which is characterized in that linear laser device number and the optical signal
The number for receiving head is identical, and the opposite side that the optical signal receives head, at least two wordline shapes are arranged in linear laser device
The flicker frequency of the light of the sending of laser is different, and the optical signal receives the wordline shape laser hair that head receives opposite side respectively
Laser out.
42. linear laser system according to claim 39, which is characterized in that it is at least two that the optical signal, which receives head,
A, the wordline shape laser is one, is touched as long as one layer of laser emitting line that this wordline shape laser is formed covers
The touch range of plate.
43. the linear laser system according to any one of claim 37 to 42, which is characterized in that the light-filtering channels
Conduit wall be the conduit wall being made of light screening material.
44. the linear laser system according to any one of claim 37 to 42, which is characterized in that the light-filtering channels
Internal width are as follows: the width of light inlet institute at one end be greater than the light-sensitive element width at one end, and width oneself
The light inlet is gradually reduced to the light-sensitive element at one end at one end；At least four light-filtering channels are successively arranged
Column, arrangement mode is adjacent at one end for the light-sensitive element institute, and the light inlet institute is adjacent at one end.
45. the linear laser system according to any one of claim 37 to 42, which is characterized in that the optical signal connects
Receive the avris that the touch tablet is arranged in head；For the signal processing module by the way of Time share scanning, timesharing receives at least two
A optical signal receives the reception information that hair is sent；Three optical signals receive head, a corresponding linear laser device；
When the touch tablet be widescreen or mosaic screen when, optical signal receive head be equipped with it is multiple, and optical signal receive head be arranged in touch tablet
Side edge.
46. the linear laser system according to any one of claim 37 to 42, which is characterized in that the optical signal connects
Receive the avris that the touch tablet is arranged in head；For the signal processing module by the way of Time share scanning, timesharing receives at least two
A optical signal receives the reception information that hair is sent；Three optical signals receive head, a corresponding linear laser device；
When the touch tablet be widescreen or mosaic screen when, optical signal receive head be equipped with it is multiple, and optical signal receive head be arranged in touch tablet
Middle part.
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 |
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| Publication Number | Publication Date |
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| CN106249967A CN106249967A (en) | 2016-12-21 |
| CN106249967B true CN106249967B (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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| 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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| 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 |
| 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 |
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|---|---|---|---|---|
| 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 |
|---|---|---|---|---|
| JP4455391B2 (en) * | 2005-04-15 | 2010-04-21 | キヤノン株式会社 | Coordinate input device, control method therefor, and program |
| 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
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
| CN106249967A (en) | 2016-12-21 |
| 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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