CN103488340B - Oversize multipoint touch sensing unit and recognition method thereof - Google Patents
Oversize multipoint touch sensing unit and recognition method thereof Download PDFInfo
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- CN103488340B CN103488340B CN201310426937.0A CN201310426937A CN103488340B CN 103488340 B CN103488340 B CN 103488340B CN 201310426937 A CN201310426937 A CN 201310426937A CN 103488340 B CN103488340 B CN 103488340B
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- oversize
- point touch
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- touch
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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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
Abstract
The invention discloses an oversize multipoint touch sensing unit and a recognition method thereof. On the basis of multipoint recognition method, the oversize multipoint touch sensing unit comprises a gridded electromagnetic sensing layer, a two-layer surface substrate with the gridded electromagnetic sensing layer embedded inside, and a sensing signal collection and control integrated circuit in communication connection with the gridded electromagnetic sensing layer, and the sensing signal collection and control integrated circuit is in communication connection with a calculation control unit with a touch driving program. By the oversize multipoint touch sensing unit and the recognition method thereof, application of multipoint touch in the technical field of oversize touch is realized.
Description
Technical field
The invention belongs to technical field of touch control, more particularly to a kind of oversize multi-point touch sensing unit and its identification side
Method.
Background technology
Increasingly extensive with touch technology application, its range of application is from mobile phone, PAD, GPS (Global Navigation System), MP3
Deng mass consumption electronic applications smart home is rapidly spread to (such as touch-control TV, touch-control refrigerator, touch-control kitchen, touch-control tea table
Deng), interactive digital label, interactive display and demonstration, the field such as interactive teaching.The features such as the simple, convenient of touch control operation, hommization
The optimal interface of human-computer interaction is become and has popularized rapidly.At present, in technical field of touch control, there are infrared, surface acoustic wave, surface electricity
The touch technologies such as appearance, resistance, optics, in, for large scale screen design requirement (3.5～7 inches be small size, 10～
15 inches is middle large scale, and 17～22 inches is large scale, and more than 30 inches is oversize), in order to meet integrated touch-control people
Machine Application of Interface, it is necessary to select the touch-control sensing technical scheme for being adapted to larger screen.
Firstly, for the electric resistance touch-control detection technology that early stage is used, though can have in terms of material with technical costs
Advantage, also adapts to the small screen into, the integrated demand of touch technology of large scale screen, but actually electric resistance touch-control still has material
The congenital restriction of material, structure and technical elements, for example, the membrane structure of electric resistance touch-control sensing can cause screen light transmittance to be subject to
Affect, as the frame for movement of diaphragm pressure sensing so that service life is greatly affected because of a large amount of touching by, frequent
Using being easy to expose technical applied defect above the device of kenel.
Secondly, for capacitance touching control technology, due to its principle system Jing operator's finger contact screens, overall sensing is affected
The faint change of layer capacitance state, and then through touch-control IC analysis contact position.Initial stage develops for the touch-control of the small screen is designed
Product development demand can be met, if but then during input exceedes, the touch technology of large scale screen it is integrated, G/G (Glass
ToGlass) the giant-screen protective glass laminating difficulty of structure is high, and G/G structural problem causes the panel of large scale screen strong
Degree is affected, even if the thickness problem of G/G schemes does not interfere with the design requirement of middle large scale screen product, but it is actual
The yield of upper G/G touch schemes have impact on the cost of end product, so as to have influence on using big chi in capacitance touching control technology
The cost of very little Touch Screen.Therefore, capacitance touching control technical scheme runs into bottleneck in exploitation in large size.
Electronic whiteboard, the touch-control application scheme of public's display were originally used in, were also employed in the brand of computer of part.Example
Such as, in computer with integrated (All-in-one) product more than 20 cun, just have using optical touch control scheme, and bigger
The design of size, then partly have using sound wave sensing and detecting type touch scheme.Either optical touch control scheme or sound wave sense
Survey formula touch scheme, its accuracy for following the trail of contact has a certain degree of error, and this is easy mainly due to optical sensing formula
Affected by light, and sound wave sensing and detecting type waterproof ability is weaker, this results in the contact degree of accuracy cannot be such as resistance-type or electric capacity
Formula touch scheme is accurate.In addition, pressing and interface feedback process in touching for man-machine interface, take also compared with resistance or capacitance touching control slightly
Long, under accuracy and system feedback limited speed, also therefore suffer from affecting in the benefit of large-size screen monitors application.Except the degree of accuracy it is anti-with system
Outside feedback speed issue, most users in small screen familiar multi-point touch use habit, if in middle large-size screen monitors touch-control product
Optics or sound wave sensing touch-control are adopted, also because of Technical Architecture bottleneck, and be able to cannot be obtained in terms of the application support of multi-point touch
Preferably multi-point touch experience is obtained, and a kind of infrasonic wave's touch scheme of low frequency can also send one in the hand-written slip of user
Hiss is planted, user's touch experience effect is affected.
Finally, infrared touch screen is one circuit board housing of installation before display, and circuit board is arranged on the side of screen four
Cloth infrared transmitting tube and infrared receiving tube, correspond and form the infrared ray matrix for intersecting anyhow.User in Touch Screen, hand
Finger will block two infrared rays anyhow through the position, thus may determine that touch point in the position of screen.At present, it is red
Large scale is applied to outer touch screen more, but it is necessarily mounted at display device outside, and aesthetic property is poor.When applying out of doors,
Antiknock, waterproof ability are weak, and the low shortcoming of service life also constrains its application.
Known multi-point touch-control panel (such as electric capacity, resistance) is the transparency carrier that surface distributed has sensing detection layers, is passed through
User is input into and is controlled using the signal produced by finger or Stylus contact.Be inside it by two-layer high-transparent glass/
The multi-point touch sensing detection layers that thin-film package ITO (indium tin oxide) is constituted, user is by the finger touch sensing detection
Layer corresponds to the relevant position on display screen, so as to carry out touch control operation.Because the multi-point touch senses the making of detection layers
Complex process, and indium tin oxide is scarce resource, causes its price high and supply is limited, and multi-point touch sensing inspection
Survey layer more be applied on small-medium size screen (wherein 3.5～7 inches be small size, 10～15 inches be middle large scale, 17～22
Inch is large scale, and more than 30 inches is oversize).On the other hand, the multi-point touch sensing detection layers of above-mentioned small-medium size
Penetration capacity be limited as 3mm, because the limitation of technique and technology prevents it from carrying out curved surface touch-control, so the scope of application is very
Limitation.Another further aspect, touch-control precision is poor in middle large touch scheme, there is delay and multiple spot technological architecture bottleneck；These
All constrain its widely available.
Also a kind of touch control film of encapsulation ultrafine wire network electromagnetic inductive layer and preparation method thereof, such as Patent No.
Described in 200910181699.5 and 201210236716.2, it is characterized in that built-in ultrafine wire cost is relatively low, in oversize
Screen application is wider, but because the touch-control of oversize is only limitted to single-point, two point touch-control, it is impossible to so that many people are in a big touch-control
Multi-point interaction information is carried out on screen.
In view of the not enough and defect of above-mentioned technical field, urgent need develop one kind can apply oversize, can multiple spot touch
Control sensing unit, to be adapted to the market demand, widens the range of application in touch-control field.
The content of the invention
In view of the defect that above-mentioned prior art is present, the purpose of the present invention is to propose to a kind of sensing of oversize multi-point touch
Unit and its recognition methods.
The purpose of the present invention will be achieved by the following technical programs：
A kind of oversize multi-point touch sensing unit, the oversize means more than 30 inches, including grid electricity
Magnetic induction layer, embeds the two layers of surface basic unit of the network electromagnetic inductive layer, and one is connected with network electromagnetic inductive layer communication
Induced signal acquisition control integrated circuit, the induced signal acquisition control integrated circuit and has touch-control driver
Calculation control unit communication connection.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The network electromagnetic inductive layer includes
By ultrafine wire respectively along X-axis and Y-axis coiling, intertwining intertexture longitude and latitude netting twine, the ultrafine wire is in intersection
Mutually insulated.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The network electromagnetic inductive layer passes through
The pressing mode of spray printing and/or silk-screen and/or impressing is embedded among two layers of surface basic unit.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The network electromagnetic inductive layer is two
Longitude and latitude netting twine more than layer or two-layer, on per layer of longitude and latitude netting twine insulating barrier is coated with.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The ultrafine wire is led including nanometer
Line and/or plain conductor.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The surface basic unit is flexible and transparent
Film, smooth wallpaper or carpet, clear glass or acrylic board；The thickness of the surface basic unit is less than or equal to 10 millimeters；Institute
Surface basic unit is stated for plane or curved-surface structure.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The network electromagnetic inductive layer it is super
Thin wire is integrated with the induced signal acquisition control by a data flow output interface and a data flow input interface after collecting
Circuit is connected；The data flow input interface has the ultrafine wire signal output interface of independent X-axis and Y-axis；The number
It is flexible print circuit, electrode or contact pin according to stream output interface and data flow input interface.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The induced signal acquisition control collection
It is integrated circuit or integrated circuit with multi-point touch signals collecting, process and computer standard output interface function into circuit
Circuit main board in combination with printed circuit；The induced signal acquisition control integrated circuit includes：
Power transfer module, by the input voltage of communication interface analog circuit and digital circuit institute in acquisition system are converted into
The voltage for needing, and input power and out-put supply are isolated, to prevent external power source from producing interference by communication interface；
Transtation mission circuit module, the pumping signal needed for for producing capacitance detecting, successively respectively to the X on ultrafine wire
Axle, Y-axis crosspoint carry out charge and discharge electric scanning, and the matrix signal that scanning is obtained is sent to into CPU processing modules, in CPU process
Under the control of module, the matrix signal that different receiving channels are received is sent to receiving circuit module by timesharing；
Receiving circuit module, the matrix signal for receiving is amplified, rectification and filtering conversion, most matrix signal at last
It is converted into data-signal, and sends into CPU processing modules being processed；
And CPU processing modules, the operation of the induced signal acquisition control integrated circuit is controlled, and will finally gather letter
Number digital operation and process are carried out, transmitting to calculation control unit carries out multiple spot identifying processing.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The touch-control driver includes
DSP data processors, for carrying out multiple spot identification, and touch-control sensitivity and the school of threshold value of the touch-control sensing unit
Standard, while detecting whether the ultrafine wire has broken string and electromagnetic interference degree.
Preferably, above-mentioned oversize multi-point touch sensing unit, wherein：The touch-control driver is arranged on and calculates
In the operating system of control unit, or in the independent hard drive device for exempting from installation and debugging；It is described to calculate control
The operating system of unit includes Linux, Windows or Android.
The recognition methods of any one above-mentioned oversize multi-point touch sensing unit, the oversize means 30 English
More than very little, comprise the steps：
Step one, is converted into induced signal acquisition control integrated by the input voltage of communication interface by power transfer module
Analog circuit and digital circuit required voltage in circuit, and input power and out-put supply are isolated, to prevent external electrical
Source produces interference by communication interface；
Step 2, by transtation mission circuit module pumping signal, successively respectively to ultrafine wire in X-axis, Y-axis each are sent
Crosspoint carries out charge and discharge electric scanning, and the matrix signal that scanning is obtained is sent to into CPU processing modules；
Step 3, under the control of CPU processing modules, timesharing is sent to the matrix signal that different receiving channels are received
Receiving circuit module；
Step 4, receiving circuit module is amplified the matrix signal for receiving, rectification and filtering conversion, most square at last
Battle array signal is converted into data-signal, sends into CPU processing modules and is processed, and formation rule matrix data stream is defeated by communication interface
Go out to be sent to calculation control unit；
Step 5, multi-point touch operation is carried out to network electromagnetic inductive basic unit, and the traffic flow information of generation passes through data flow
Output interface and data flow input interface are input to induced signal acquisition control integrated circuit, the integrated electricity of induced signal acquisition control
Road is acquired to traffic flow information and process is formed initial matrix signal and exported by communication interface；
Step 6, initial matrix signal is input into by the input interface of calculation control unit, by DSP data processing journeys
Sequence carries out data processing, draws the physical location of multi-point touch, so as to recognize multi-point touch operation.
Preferably, the recognition methods of above-mentioned a kind of oversize multi-point touch sensing unit, wherein：The DSP data
Processing routine includes centroid algorithm.
The present invention prominent effect be：
1. a kind of recognition methods of oversize multi-point touch sensing unit, and a kind of oversize touch-control sense are provided
Unit is answered, application of the multi-point touch in super large technical field of touch control is realized；
2. the preparation method of oversize multi-point touch sensing unit adopts streamlined operation, raw material to obtain and be easy to get, into
This is easy to control；
3. calculation control unit can be manually attached to based on the software of multiple spot algorithm, can also be integrated in a hardware driving dress
In putting, plug and play is adaptable to several operation systems, with hommization visual interface；
4. the abundant raw materials of oversize multi-point touch sensing unit are prepared, consumption is few, traditional ITO technologies can be replaced,
Avoid using the rare materials such as indium tin oxide, and it is pollution-free；
5. the penetration capacity of oversize multi-point touch sensing unit reaches 10mm more than 3mm, enhances anti-riot, waterproof
Ability, expands its application in the field of the anti-riot water-proof function of numerous needs such as military, industry, business；
6. application of the oversize multi-point touch sensing unit in curved surface touch-control field is capable of achieving.
Hereinafter just accompanying drawing in conjunction with the embodiments, is described in further detail, so that of the invention to the specific embodiment of the present invention
Technical scheme is more readily understood, grasps.
Description of the drawings
Fig. 1 is the structural representation of the multi-point touch sensing unit of the embodiment of the present invention；
Fig. 2 is the structural representation of the induced signal acquisition control integrated circuit of the embodiment of the present invention；
Fig. 3 is the system flow chart of the embodiment of the present invention；
Fig. 4 is the detection distribution schematic diagram of the network electromagnetic inductive layer of the embodiment of the present invention.
Specific embodiment
Embodiment
A kind of oversize multi-point touch sensing unit of the present embodiment, the oversize means more than 30 inches, such as
Shown in Fig. 1～Fig. 4, including network electromagnetic inductive layer 3, the two layers of surface basic unit of embedded grid electromagnetic induction layer 3 (does not show in figure
Go out), the ultrafine wire of network electromagnetic inductive layer 3 is felt after collecting by data flow output interface 4 and the connection of data flow input interface 5
Induction signal acquisition control integrated circuit 7, the ultrafine wire signal output that data flow input interface 5 has independent X-axis and Y-axis connects
Mouthful；Data flow output interface 4 and data flow input interface 5 are flexible print circuit, electrode or contact pin.Induced signal collection control
Integrated circuit processed 7 is connected by communication interface 6 with the calculation control unit 9 with touch-control driver.
Network electromagnetic inductive layer 3 is included by ultrafine wire respectively along X-axis and Y-axis coiling, intertwining intertexture longitude and latitude
Netting twine, ultrafine wire in intersection mutually insulated, enclose the space for setting and constitute a sensing unit by each crosspoint.Optionally,
The network electromagnetic inductive layer is embedded among two layers of surface basic unit by the pressing mode such as spray printing and/or silk-screen and/or impressing,
Network electromagnetic inductive layer 3 is longitude and latitude netting twine more than two-layer or two-layer, is coated with insulating barrier on per layer of longitude and latitude netting twine, per layer
Sensing unit arrangement interlaced with each other on longitude and latitude netting twine, in rule cellular, rectangular-shaped or diamond shaped, between sensing unit between
It is identical away from size, or differ.Ultrafine wire includes nm-class conducting wire and/or plain conductor.
Surface basic unit is flexible transparent film, smooth wallpaper or carpet, clear glass or acrylic board；Surface basic unit
Thickness is less than or equal to 10 millimeters；Surface basic unit is plane or curved-surface structure.
Induced signal acquisition control integrated circuit 7 is with multi-point touch signals collecting, processes and computer standard output
Circuit main board of the integrated circuit or integrated circuit of interface function in combination with printed circuit；The integrated electricity of induced signal acquisition control
Road includes：
Power transfer module, by the input voltage of communication interface 6 analog circuit and digital circuit in acquisition system are converted into
Required voltage, and input power and out-put supply are isolated, to prevent external power source from producing interference by communication interface；
Transtation mission circuit module, the pumping signal needed for for producing capacitance detecting, successively respectively to the X on ultrafine wire
Axle, Y-axis crosspoint carry out charge and discharge electric scanning, and the matrix signal that scanning is obtained is sent to into CPU processing modules, in CPU process
Under the control of module, the matrix signal that different receiving channels are received is sent to receiving circuit module by timesharing；
Receiving circuit module, the matrix signal for receiving is amplified, rectification and filtering conversion, most matrix signal at last
It is converted into data-signal, and sends into CPU processing modules being processed；
And CPU processing modules, the operation of induced signal acquisition control integrated circuit is controlled, and final collection signal is entered
Line number word arithmetic and process, transmitting to calculation control unit 9 carries out multiple spot identifying processing.
Touch-control driver includes DSP data processors, for carrying out multiple spot identification, and debugging touch-control sensing list
The calibration of the touch-control sensitivity of unit and threshold value etc., while detecting whether the ultrafine wire has broken string and electromagnetic interference degree.Touch
Control driver is arranged in the operating system of calculation control unit 9, or is driven installed in the independent hardware for exempting from installation and debugging
In dynamic device.The operating system of calculation control unit 9 includes Linux, Windows or Android.
A kind of recognition methods of oversize multi-point touch sensing unit, the oversize means more than 30 inches, bag
Include following steps：
Step one, induced signal acquisition control collection is converted into by the input voltage of communication interface 6 by power transfer module
Analog circuit and digital circuit required voltage in circuit, and input power and out-put supply are isolated, to prevent outside
Power supply produces interference by communication interface；
Step 2, by transtation mission circuit module pumping signal, successively respectively to ultrafine wire in X-axis, Y-axis each are sent
Crosspoint carries out charge and discharge electric scanning, and the matrix signal that scanning is obtained is sent to into CPU processing modules；Concrete scan mode is as schemed
Shown in 4, pumping signal is sent to X1 by transtation mission circuit module, scan the data-signal of X1 and Y1 crosspoints section, X1 respectively successively
With the data-signal of Y2 crosspoints section, the data-signal of X1 and Y3 crosspoints section, until scanning to X1 and the number of Yn crosspoints section
It is believed that number, complete the whole data acquisition on X1 axles.Completed in X2 axles, X3 axles, X4 axles, until Xm with same scan mode
Data acquisition on axle.Due to the presence of coupled capacitor, in the intersection of every X-axis and Y-axis an electric capacity is formed, it is assumed that
When time sharing segment sends the sine wave exciting signal that an amplitude and phase place are fixed on X1 axles, then X1 axles and Y1 axles, Y2 axles,
It is related to the frequency of pumping signal and coupled capacitor size that the intersection of Y3 axle ... Yn axles can produce an amplitude and phase place
Induced signal, now induced signal acquisition control integrated circuit acquisition to X1 axles respectively with Y1 axles, Y2 axles, Y3 axles ... Yn
The capacitance in axle crosspoint is referred to as maximum Vmax；
Step 3, under the control of CPU processing modules, timesharing is sent to the matrix signal that different receiving channels are received
Receiving circuit module；
Step 4, receiving circuit module is amplified the matrix signal for receiving, rectification and filtering conversion, most square at last
Battle array signal is converted into data-signal, sends into CPU processing modules and is processed, and formation rule matrix data stream is defeated by communication interface 6
Go out to be sent to calculation control unit 9；
Step 5, staff 2 touches multi-point touch network electromagnetic inductive basic unit 3 and carries out multi-point touch operation, the phase of generation
Close traffic flow information and the integrated electricity of induced signal acquisition control is input to by data flow output interface 4 and data flow input interface 5
Road 7, induced signal acquisition control integrated circuit 7 is acquired to traffic flow information and process forms initial matrix signal and passes through
Communication interface 6 is exported；As shown in figure 4, when staff 2 touches the point M on touch-control sensing unit (or more points, this sentences this
Individual point is citing), because human body is the conductor of the electrostatic induction for carrying, an induction zone can be formed in touch-control sensing cell surface
Domain 1 (more than or equal to the contact area of finger and touch-control sensing cell surface), covered in this induction region 16 X-axis with
The crosspoint of Y-axis, including the intersection point M1 of X2 axle Y2 axles, X3 axles and the intersection point M2......X4 axles of Y2 axles and the intersection point M6 of Y3 axles.
Now induced signal acquisition control integrated circuit acquisition will reduce to the capacitance in this 6 crosspoints of M1, M2, M3, M4, M5, M6,
With M1 citings, it is assumed that the capacitance in the crosspoint has been reduced to N1, the data message that the point can be obtained by inverting algorithm is
Vmax-N1.The data message in other 5 crosspoints is obtained in the same manner, forms initial matrix signal.
Step 6, initial matrix signal is input into by the input interface 8 of calculation control unit 9, by DSP data processings
Program carries out data processing, and (DSP data processors can be integrated with calculation control unit 9, it is also possible to separately from meter
Calculate outside control unit 9)；DSP data processors are by the data message Vmax- in initial matrix signal, i.e. each crosspoint
N1 carries out centroid algorithm, calculates actual position information M of the touch-control.Touch-control driver is converted into positional information M
The signal transmission that calculation control unit 9 is capable of identify that is to calculation control unit 9, you can show that staff touch-control is grasped in the touch-control of the point
Make.
When there is multiple staff to carry out touch control operation, the staff 10, staff 11. in such as Fig. 1 repeats above-mentioned recognition methods, and
Do not limited by touch point quantity.
All technical sides that the present invention still has numerous embodiments, all employing equivalents or an equivalent transformation and formed
Case, is within the scope of the present invention.
Claims (11)
1. a kind of oversize multi-point touch sensing unit, the oversize means more than 30 inches, it is characterised in that：Including
One network electromagnetic inductive layer, embed the network electromagnetic inductive layer two layers of surface basic unit, one with the network electromagnetic inductive layer
The induced signal acquisition control integrated circuit of communication connection,
The induced signal acquisition control integrated circuit is connect with multi-point touch signals collecting, process and computer standard output
Circuit main board of the integrated circuit or integrated circuit of mouth function in combination with printed circuit；
The induced signal acquisition control integrated circuit includes：
Power transfer module, the input voltage of communication interface is converted in acquisition system needed for analog circuit and digital circuit
Voltage, and input power and out-put supply are isolated, to prevent external power source from producing interference by communication interface；
Transtation mission circuit module, the pumping signal needed for for producing capacitance detecting, successively respectively to X axles, the Y on ultrafine wire
Axle crosspoint carries out charge and discharge electric scanning, and the matrix signal that scanning is obtained is sent to into CPU processing modules, and in CPU mould is processed
Under the control of block, the matrix signal that different receiving channels are received is sent to receiving circuit module by timesharing；
Receiving circuit module, the matrix signal for receiving is amplified, rectification and filtering conversion, most at last matrix signal conversion
Into data-signal, and send into CPU processing modules and processed；
And CPU processing modules, the operation of the induced signal acquisition control integrated circuit is controlled, and will finally gather signal
Digital operation and process are carried out, transmitting to calculation control unit carries out multiple spot identifying processing；
The calculation control unit communication that the induced signal acquisition control integrated circuit has touch-control driver with one is connected.
2. a kind of oversize multi-point touch sensing unit according to claim 1, it is characterised in that：The grid electromagnetism
Inductive layer includes by ultrafine wire respectively along X axles and Y axle coilings, intertwining intertexture longitude and latitude netting twine, described ultra-fine to lead
Line is in intersection mutually insulated.
3. a kind of oversize multi-point touch sensing unit according to claim 2, it is characterised in that：The grid electricity
Magnetic induction layer is embedded among two layers of surface basic unit by the pressing mode of spray printing and/or silk-screen and/or impressing.
4. a kind of oversize multi-point touch sensing unit according to claim 2, it is characterised in that：The grid electromagnetism
Inductive layer is two-layer or longitude and latitude netting twine more than two-layer, and on per layer of longitude and latitude netting twine insulating barrier is coated with.
5. a kind of oversize multi-point touch sensing unit according to claim 2, it is characterised in that：The ultrafine wire
Including nm-class conducting wire and/or plain conductor.
6. a kind of oversize multi-point touch sensing unit according to claim 1, it is characterised in that：The surface base
Layer is flexible transparent film, smooth wallpaper or carpet, clear glass or acrylic board；The thickness of the surface basic unit less than etc.
In 10 millimeters；The surface basic unit is plane or curved-surface structure.
7. a kind of oversize multi-point touch sensing unit according to claim 2, it is characterised in that：The grid electromagnetism
The ultrafine wire of inductive layer is adopted by a data flow output interface and a data flow input interface after collecting with the induced signal
Set dominating set is connected into circuit；The data flow input interface has the ultrafine wire signal output of independent X axles and Y axles
Interface；The data flow output interface and data flow input interface are flexible print circuit, electrode or contact pin.
8. a kind of oversize multi-point touch sensing unit according to claim 1, it is characterised in that：The touch-control drives
Program includes DSP data processors, for carrying out multiple spot identification, and the touch-control sensitivity of the touch-control sensing unit
With the calibration of threshold value, while detect the ultrafine wire whether have broken string and electromagnetic interference degree.
9. a kind of oversize multi-point touch sensing unit according to claim 8, it is characterised in that：The touch-control drives
Program is arranged in the operating system of calculation control unit, or installed in the independent hard drive device for exempting from installation and debugging
In；The operating system of the calculation control unit includes Linux, Windows or Android.
10. the recognition methods of any one the oversize multi-point touch sensing unit according to claim 1 ~ 9, described
Oversize means more than 30 inches, it is characterised in that comprise the steps：
Step one, induced signal acquisition control integrated circuit is converted into by the input voltage of communication interface by power transfer module
Middle analog circuit and digital circuit required voltage, and input power and out-put supply are isolated, to prevent external power source from leading to
Cross communication interface and produce interference；
Step 2, by transtation mission circuit module pumping signal is sent, successively each friendship respectively to ultrafine wire on X axles, Y axles
Crunode carries out charge and discharge electric scanning, and the matrix signal that scanning is obtained is sent to into CPU processing modules；
Step 3, under the control of CPU processing modules, the matrix signal that different receiving channels are received is sent to and is connect by timesharing
Receive circuit module；
Step 4, receiving circuit module is amplified the matrix signal for receiving, and rectification and filtering are changed, and most at last matrix is believed
Data-signal number is converted into, CPU processing modules is sent into and is processed, formation rule matrix data stream is passed by communication interface output
It is sent to calculation control unit；
Step 5, multi-point touch operation is carried out to network electromagnetic inductive basic unit, and the traffic flow information of generation is exported by data flow
Interface and data flow input interface are input to induced signal acquisition control integrated circuit, induced signal acquisition control integrated circuit pair
Traffic flow information is acquired and process is formed initial matrix signal and exported by communication interface；
Step 6, initial matrix signal is input into by the input interface of calculation control unit, by DSP data processors
Data processing is carried out, the physical location of multi-point touch is drawn, so as to recognize multi-point touch operation.
A kind of recognition methods of the 11. oversize multi-point touch sensing units according to claim 10, its feature exists
In：The DSP data processors include centroid algorithm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426937.0A CN103488340B (en) | 2013-09-18 | 2013-09-18 | Oversize multipoint touch sensing unit and recognition method thereof |
| PCT/CN2013/084548 WO2015039363A1 (en) | 2013-09-18 | 2013-09-27 | Oversize multipoint touch-control induction unit and identification method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426937.0A CN103488340B (en) | 2013-09-18 | 2013-09-18 | Oversize multipoint touch sensing unit and recognition method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103488340A CN103488340A (en) | 2014-01-01 |
| CN103488340B true CN103488340B (en) | 2017-04-12 |
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|---|---|---|---|
| CN201310426937.0A Ceased CN103488340B (en) | 2013-09-18 | 2013-09-18 | Oversize multipoint touch sensing unit and recognition method thereof |
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| CN (1) | CN103488340B (en) |
| WO (1) | WO2015039363A1 (en) |
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| CN107015702A (en) * | 2017-03-02 | 2017-08-04 | 南昌欧菲显示科技有限公司 | conductive module and touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203502931U (en) * | 2013-09-18 | 2014-03-26 | 苏州泛普纳米科技有限公司 | Oversize multipoint touch sensing unit |
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| CN2567694Y (en) * | 2002-09-16 | 2003-08-20 | 台均实业有限公司 | Touch control display screen with conductor lattice electromagnetic induction layer in it |
| JP2004192093A (en) * | 2002-12-09 | 2004-07-08 | Micro Gijutsu Kenkyusho:Kk | Transparent touch panel and method for manufacturing the same |
| CN101615096B (en) * | 2009-07-28 | 2012-01-25 | 苏州品美信息科技有限公司 | Manufacture method of imaging touch control film and uses |
| CN102023765B (en) * | 2009-09-14 | 2015-07-15 | 义隆电子股份有限公司 | Positioning method for capacitance touch control plate of two dimension type configuration |
| CN102789334B (en) * | 2012-07-10 | 2015-02-18 | 苏州泛普纳米科技有限公司 | Nanometer touch film production method |
| CN203149515U (en) * | 2013-02-05 | 2013-08-21 | 苏州泛普纳米科技有限公司 | Anti-interference touch system based on nanometer touch membrane |
| CN103246419B (en) * | 2013-04-28 | 2016-04-20 | 肖衣鉴 | The method of the judgement touch point of a kind of capacitance touch screen and touch-screen |
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| CN203502931U (en) * | 2013-09-18 | 2014-03-26 | 苏州泛普纳米科技有限公司 | Oversize multipoint touch sensing unit |
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| WO2015039363A1 (en) | 2015-03-26 |
| CN103488340A (en) | 2014-01-01 |
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Address after: 215000 C22 building, bio nano Park, 218 Xing Hu Street, Suzhou Industrial Park, Jiangsu. Patentee after: Suzhou universal Polytron Technologies Inc Address before: 215123 C22 Biological Park, No. 218 Xing Hu Street, Suzhou Industrial Park, Jiangsu. Patentee before: Suzhou Fanpu Nano Technology Co., Ltd. |
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