CN103488340A - 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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- CN103488340A CN103488340A CN201310426937.0A CN201310426937A CN103488340A CN 103488340 A CN103488340 A CN 103488340A CN 201310426937 A CN201310426937 A CN 201310426937A CN 103488340 A CN103488340 A CN 103488340A
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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 the touch technology field, relate in particular to a kind of oversize multi-point touch sensing unit and recognition methods thereof.
Background technology
Increasingly extensive along with touch technology application, its range of application is from mobile phone, PAD, GPS(Global Navigation System), the mass consumption electronic applications such as MP3 expands to rapidly the fields such as Smart Home (as touch-control TV, touch-control refrigerator, touch-control kitchen, touch-control tea table etc.), interactive digital label, interactive display and demonstration, interactive teaching.The characteristics such as simple, convenient, the hommization of touch control operation have become the best interface of human-computer interaction universal rapidly.At present, in the touch technology field, the touch technologies such as infrared, surface acoustic wave, surface capacitance, resistance, optics are arranged, for in, (3.5 ~ 7 inches is small size to large scale screen design requirement, 10 ~ 15 inches is middle large scale, and 17 ~ 22 inches is large scale, more than 30 inches, is oversize), in order to meet integrated touch-control human interface applications, must select to be applicable to than the touch-control sensing technical scheme of giant-screen.
At first, for early stage used electric resistance touch-control detection technology, though can aspect material and technical costs, there is advantage, also can adapt to the small screen in, the integrated demand of the touch technology of large scale screen, but in fact electric resistance touch-control still has material, the congenital restriction of structure and technical elements, for example, the membrane structure of electric resistance touch-control sensing can cause the screen transmittance to be affected, also can be because of the physical construction of diaphragm pressure induction, make serviceable life and be greatly affected because of a large amount of touching by, be easy to expose technical applied defect on the device of frequent use kenel.
Secondly, for the capacitive touch control techniques, due to its principle system, through operator's finger contact screen, affect the faint variation of whole sensing layer capacitance state, and then see through touch-control IC analysis contact position.The initial stage development can meet the product development demand for the touch-control design of the small screen, if but then in dropping into and surpassing, the touch technology of large scale screen is integrated, the giant-screen cover glass laminating difficulty of G/G (Glass to Glass) structure is high, the structural problem of G/G causes the slab strength of large scale screen to be affected, even if the thickness problem of G/G scheme can't have influence on the designing requirement of middle large scale screen product, but in fact the yield of G/G touch-control scheme has affected the cost of end product, thereby have influence on the cost of the middle large touch screen of application capacitive touch control techniques.Therefore, the capacitance touching control technical scheme runs into bottleneck in exploitation in large size.
Originally be used in the touch-control application scheme of electronic whiteboard, public's display, also be applied on the part brand of computer.For example, in surpassing computer with integrated (All-in-one) product of 20 cun, the optical touch control of use scheme is just arranged, and, in larger sized design proposal, part there is the sound wave of use sensing and detecting type touch-control scheme.No matter be optical touch control scheme or sound wave sensing and detecting type touch-control scheme, its degree of accuracy of following the trail of contact has error to a certain degree, this is mainly easily to be subject to the impact of light due to the optics sensing and detecting type, and sound wave sensing and detecting type waterproof ability a little less than, this just causes, and the contact accuracy can't as resistance-type or the capacitance touching control scheme be accurate.In addition, touching of man-machine interface, press and the interface feedback process, consuming time also slightly of a specified duration than resistance or capacitance touching control, under degree of accuracy and system feedback limited speed, therefore the benefit of applying at large-size screen monitors also is affected.Except accuracy and system feedback speed issue, most users multi-point touch use habit familiar at small screen, if adopt optics or sound wave induction touch-control at middle large-size screen monitors touch-control product, also can be because of the Technical Architecture bottleneck aspect the application support of multi-point touch, and can't obtain preferably multi-point touch, experience, and a kind of infrasonic wave's touch-control scheme of low frequency, when the hand-written slip of user, also can be sent a kind of sizzle, affects user's touch-control experience effect.
Finally, infrared touch screen is that a circuit board housing is installed in the front of display, circuit board on screen four limits, arrange infrared transmitting tube and infrared receiving tube, the corresponding infrared ray matrix anyhow intersected that forms one by one.The user is when Touch Screen, and finger will block two infrared rays anyhow through this position, thereby can judge the position of touch point at screen.At present, infrared touch screen is applied to large scale more, but it must be arranged on the display device outside, and aesthetic property is poor.While applying out of doors, a little less than antiknock, waterproof ability, serviceable life is low etc., and shortcoming has also restricted its application.
Known multi-point touch-control panel (as electric capacity, resistance) is the transparency carrier that surface distributed has the induction detection layers, and the signal that uses finger or nib contact to produce by the user is inputted and controlled.Its inside is by two-layer high-transparent glass/thin-film package ITO(indium tin oxide) multi-point touch that forms induction detection layers, the user by this induction detection layers of finger touch corresponding to the relevant position on display screen, thereby carry out touch control operation.Complex manufacturing technology due to described multi-point touch induction detection layers, and indium tin oxide is scarce resource, cause its price high limited with supply, and multi-point touch induction detection layers is applied to more, and on the small-medium size screen, (wherein 3.5 ~ 7 inches is small size, 10 ~ 15 inches is middle large scale, 17 ~ 22 inches is large scale, more than 30 inches, is oversize).On the other hand, the penetration capacity of the multi-point touch of above-mentioned small-medium size induction detection layers is limited as 3mm, because the limitation of technique and technology makes it can not carry out the curved surface touch-control, so the scope of application is limited to very much.On the one hand, in middle large touch scheme, the touch-control precision is poor again, has and postpones and multiple spot technological architecture bottleneck; These have all restricted it and have extensively popularized.
Also has a kind of touch control film that encapsulates the ultrafine wire network electromagnetic inductive layer and preparation method thereof, as the patent No. is as described in 200910181699.5 and 201210236716.2, be characterized in that built-in ultrafine wire cost is lower, wider in the oversize screen application, but, because the touch-control of oversize only limits to single-point, two point touch-control, can't make many people carry out multi-point interaction information on a large touch screen.
In view of deficiency and the defect of above-mentioned technical field, a kind ofly can be applied in multi-point touch sensing unit on oversize but be badly in need of developing, to be applicable to the market demand, widen the range of application in touch-control field.
Summary of the invention
Defect in view of above-mentioned prior art exists, the objective of the invention is to propose a kind of oversize multi-point touch sensing unit and recognition methods thereof.
Purpose of the present invention will be achieved by the following technical programs:
A kind of oversize multi-point touch sensing unit, comprise a network electromagnetic inductive layer, the two layers of surface basic unit of embedded described network electromagnetic inductive layer, one induced signal be connected with described network electromagnetic inductive layer communication gathers the control integration circuit, and described induced signal gathers the control integration circuit and is connected with a calculation control unit communication with touch-control driver.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described network electromagnetic inductive layer comprises that described ultrafine wire is located mutually insulated in point of crossing by ultrafine wire, the intertwining longitude and latitude netting twine interweaved that form along X-axis and Y-axis coiling respectively.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: the pressing mode of described network electromagnetic inductive layer by spray printing and/or silk-screen and/or impression is embedded among two layers of surface basic unit.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described network electromagnetic inductive layer is two-layer or two-layer above longitude and latitude netting twine, on every layer of described longitude and latitude netting twine, is coated with insulation course.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described ultrafine wire comprises nm-class conducting wire and/or plain conductor.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described surperficial basic unit is the flexible and transparent film, smooth wallpaper or carpet, clear glass or acrylic board; The thickness of described surperficial basic unit is less than or equal to 10 millimeters; Described surperficial basic unit is plane or curved-surface structure.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: gather the control integration circuit by a data stream output interface with a data stream input interface and described induced signal after the ultrafine wire of described network electromagnetic inductive layer collects and be connected; Described data stream input interface has the independently ultrafine wire signal output interface of X-axis and Y-axis; Described data stream output interface and data stream input interface are flexible print circuit, electrode or contact pin.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: it is to have the integrated circuit of multi-point touch signals collecting, processing and computer standard output interface function or the circuit main board that integrated circuit combines with P.e.c. that described induced signal gathers the control integration circuit; Described induced signal gathers the control integration circuit and comprises:
Power transfer module, convert the input voltage of communication interface in acquisition system mimic channel and the required voltage of digital circuit, and input power and out-put supply isolated, and to prevent external power source, by communication interface, produces interference;
The transtation mission circuit module, the required pumping signal for generation of capacitance detecting, respectively the X-axis on ultrafine wire, Y-axis point of crossing are discharged and recharged to scanning successively, and the matrix signal that scanning is obtained is sent to the CPU processing module, under the control of CPU processing module, the matrix signal that timesharing receives different receiving cables sends to receiving circuit module;
Receiving circuit module, by the matrix signal received amplified, rectification and filtering conversion, matrix signal converts data-signal to the most at last, and sends into the CPU processing module and processed;
And the CPU processing module, control the operation that described induced signal gathers the control integration circuit, and final collection signal is carried out to digital operation and processing, transfer to calculation control unit and carry out the multiple spot identifying processing.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described touch-control driver comprises the DSP data processor, for carrying out multiple spot identification, and the touch-control sensitivity of described touch-control sensing unit and the calibration of threshold values, whether detect described ultrafine wire has broken string and electromagnetic interference (EMI) degree simultaneously.
Preferably, above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described touch-control driver is arranged in the operating system of calculation control unit, or is arranged in the hardware driving device of independently exempting from Installation and Debugging; The operating system of described calculation control unit comprises Linux, Windows or Android.
The recognition methods of any one above-mentioned oversize multi-point touch sensing unit, comprise the steps:
Step 4, receiving circuit module is amplified the matrix signal received, rectification and filtering conversion, matrix signal converts data-signal to the most at last, send into the CPU processing module and processed, formation rule matrix data stream, be sent to calculation control unit by communication interface output;
Preferably, the recognition methods of above-mentioned a kind of oversize multi-point touch sensing unit, wherein: described DSP data processor comprises centroid algorithm.
Outstanding effect of the present invention is:
1. a kind of recognition methods of oversize multi-point touch sensing unit is provided, and a kind of oversize touch-control sensing unit, realized the application of multi-point touch in oversize touch technology field;
2. the preparation method of oversize multi-point touch sensing unit adopts the streamlined operation, and starting material obtain and are easy to get, and cost is easy to control;
3. but the software manual installation based on the multiple spot algorithm, to calculation control unit, also can be integrated in a hardware driving device, and plug and play, can be adapted to several operation systems, has the hommization visual interface;
4. prepare the abundant raw materials of oversize multi-point touch sensing unit, consumption is few, can replace conventional I TO technology, avoids using the rare materials such as indium tin oxide, and pollution-free;
5. the penetration capacity of oversize multi-point touch sensing unit surpasses 3mm, reaches 10mm, has strengthened anti-riot, waterproof ability, has enlarged its application in the field of the anti-riot water-proof functions of numerous needs such as military affairs, industry, business;
6. can realize the application of oversize multi-point touch sensing unit in curved surface touch-control field.
Following constipation closes the embodiment accompanying drawing, the specific embodiment of the present invention is described in further detail, so that technical solution of the present invention is easier to understand, grasp.
The accompanying drawing explanation
The structural representation of the multi-point touch sensing unit that Fig. 1 is the embodiment of the present invention;
The induced signal that Fig. 2 is the embodiment of the present invention gathers the structural representation of control integration circuit;
The system flowchart that Fig. 3 is the embodiment of the present invention;
The detection distribution schematic diagram of the network electromagnetic inductive layer that Fig. 4 is the embodiment of the present invention.
Embodiment
Embodiment
A kind of oversize multi-point touch sensing unit of the present embodiment, as shown in Fig. 1 ~ Fig. 4, comprise network electromagnetic inductive layer 3, the two layers of surface basic unit (not shown) of embedded grid electromagnetic induction layer 3, is connected induced signal collection control integration circuit 7 with data stream input interface 5 by data stream output interface 4 after the ultrafine wire of network electromagnetic inductive layer 3 collects, data stream input interface 5 has the independently ultrafine wire signal output interface of X-axis and Y-axis; Data stream output interface 4 and data stream input interface 5 are flexible print circuit, electrode or contact pin.Induced signal gathers control integration circuit 7 and is connected with the calculation control unit 9 with touch-control driver by communication interface 6.
Network electromagnetic inductive layer 3 comprises that ultrafine wire is located mutually insulated in point of crossing by ultrafine wire, the intertwining longitude and latitude netting twine interweaved that form along X-axis and Y-axis coiling respectively, and the space that each point of crossing encloses forms a sensing unit.Optionally, described network electromagnetic inductive layer is embedded among two layers of surface basic unit by pressing modes such as spray printing and/or silk-screen and/or impressions, network electromagnetic inductive layer 3 is two-layer or two-layer above longitude and latitude netting twine, be coated with insulation course on every layer of described longitude and latitude netting twine, sensing unit layout interlaced with each other on every layer of longitude and latitude netting twine, be cellular, the rectangular-shaped or diamond shaped of rule, the spacing size between sensing unit is identical, or not identical.Ultrafine wire comprises nm-class conducting wire and/or plain conductor.
Surface basic unit is the flexible and transparent film, smooth wallpaper or carpet, clear glass or acrylic board; The thickness of surface basic unit is less than or equal to 10 millimeters; Surface basic unit is plane or curved-surface structure.
It is to have the integrated circuit of multi-point touch signals collecting, processing and computer standard output interface function or the circuit main board that integrated circuit combines with P.e.c. that induced signal gathers control integration circuit 7; Induced signal gathers the control integration circuit and comprises:
Power transfer module, convert the input voltage of communication interface 6 in acquisition system mimic channel and the required voltage of digital circuit, and input power and out-put supply isolated, and to prevent external power source, by communication interface, produces interference;
The transtation mission circuit module, the required pumping signal for generation of capacitance detecting, respectively the X-axis on ultrafine wire, Y-axis point of crossing are discharged and recharged to scanning successively, and the matrix signal that scanning is obtained is sent to the CPU processing module, under the control of CPU processing module, the matrix signal that timesharing receives different receiving cables sends to receiving circuit module;
Receiving circuit module, by the matrix signal received amplified, rectification and filtering conversion, matrix signal converts data-signal to the most at last, and sends into the CPU processing module and processed;
And the CPU processing module, control the operation that induced signal gathers the control integration circuit, and final collection signal is carried out to digital operation and processing, transfer to calculation control unit 9 and carry out the multiple spot identifying processing.
The touch-control driver comprises the DSP data processor, for carrying out multiple spot identification, and the calibration of the touch-control sensitivity of debugging touch-control sensing unit and threshold values etc., whether detect described ultrafine wire has broken string and electromagnetic interference (EMI) degree simultaneously.The touch-control driver is arranged in the operating system of calculation control unit 9, or is arranged in the hardware driving device of independently exempting from Installation and Debugging.The operating system of calculation control unit 9 comprises Linux, Windows or Android.
A kind of recognition methods of oversize multi-point touch sensing unit, comprise the steps:
Step 2, send pumping signal by the transtation mission circuit module, and to ultrafine wire, each point of crossing on X-axis, Y-axis is discharged and recharged scanning respectively successively, and the matrix signal that scanning is obtained is sent to the CPU processing module; Concrete scan mode as shown in Figure 4, by the transtation mission circuit module, X1 is sent to pumping signal, scan respectively successively the data-signal of X1 and Y1 point of crossing section, the data-signal of X1 and Y2 point of crossing section, the data-signal of X1 and Y3 point of crossing section, until scan the data-signal of X1 and Yn point of crossing section, complete whole data acquisition on the X1 axle.With same scan mode, complete at X2 axle, X3 axle, X4 axle, until data acquisition on the Xm axle.Existence due to coupling capacitance, place, point of crossing in every X-axis and Y-axis has just formed an electric capacity, while supposing that on X1 axle time sharing segment sends an amplitude and the fixing sine wave exciting signal of phase place, at X1 axle and Y1 axle, Y2 axle, Y3 axle ... place, the point of crossing of Yn axle can produce the induced signal that an amplitude is relevant with the coupling capacitance size with the frequency of pumping signal with phase place, now induced signal collection control integration circuit collect the X1 axle respectively with Y1 axle, Y2 axle, Y3 axle ... the capacitance of Yn axle point of crossing is called maximum value Vmax;
Step 4, receiving circuit module is amplified the matrix signal received, rectification and filtering conversion, matrix signal converts data-signal to the most at last, send into the CPU processing module and processed, formation rule matrix data stream, be sent to calculation control unit 9 by communication interface 6 outputs;
Step 5, staff 2 touches multi-point touch network electromagnetic inductive basic unit 3 and carries out multi-point touch operation, the related data flow information exchange produced crosses data stream output interface 4 and data stream input interface 5 is input to induced signal collection control integration circuit 7, and 7 pairs of data stream informations of induced signal collection control integration circuit carry out acquisition and processing and form initial matrix signal by communication interface 6 outputs; As shown in Figure 4, (or multiple spot more when staff 2 touches the some M on the touch-control sensing unit, this sentences this point for giving an example), due to human body be with the conductor of electrostatic induction, can form the contact area that an induction region 1(is more than or equal to finger and touch-control sensing cell surface at the touch-control sensing cell surface), covered the point of crossing of 6 X-axis and Y-axis in this induction region 1, the intersection point M1 that comprises X2 axle Y2 axle, the intersection point M2......X4 axle of X3 axle and Y2 axle and the intersection point M6 of Y3 axle.The capacitance that now induced signal collection control integration circuit collects M1, M2, M3, M4, these 6 point of crossing of M5, M6 will reduce, with M1, give an example, the capacitance of supposing this point of crossing has been reduced to N1, and the data message that can obtain this point by the reversion algorithm is Vmax-N1.In like manner obtain the data message of other 5 point of crossing, form initial matrix signal.
When having a plurality of staff to carry out touch control operation, as the staff 10 in Fig. 1, staff 11. repeat above-mentioned recognition methods, and be not subject to the restriction of touch point quantity.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection scope of the present invention.
Claims (12)
1. an oversize multi-point touch sensing unit, it is characterized in that: comprise a network electromagnetic inductive layer, the two layers of surface basic unit of embedded described network electromagnetic inductive layer, one induced signal be connected with described network electromagnetic inductive layer communication gathers the control integration circuit, and described induced signal gathers the control integration circuit and is connected with a calculation control unit communication with touch-control driver.
2. a kind of oversize multi-point touch sensing unit according to claim 1, it is characterized in that: described network electromagnetic inductive layer comprises that described ultrafine wire is located mutually insulated in point of crossing by ultrafine wire, the intertwining longitude and latitude netting twine interweaved that form along X-axis and Y-axis coiling respectively.
3. a kind of oversize multi-point touch sensing unit according to claim 2 is characterized in that: the pressing mode of described network electromagnetic inductive layer by spray printing and/or silk-screen and/or impression is embedded among two layers of surface basic unit.
4. a kind of oversize multi-point touch sensing unit according to claim 2 is characterized in that: described network electromagnetic inductive layer is two-layer or two-layer above longitude and latitude netting twine, on every layer of described longitude and latitude netting twine, is coated with insulation course.
5. a kind of oversize multi-point touch sensing unit according to claim 2, it is characterized in that: described ultrafine wire comprises nm-class conducting wire and/or plain conductor.
6. a kind of oversize multi-point touch sensing unit according to claim 1, it is characterized in that: described surperficial basic unit is the flexible and transparent film, smooth wallpaper or carpet, clear glass or acrylic board; The thickness of described surperficial basic unit is less than or equal to 10 millimeters; Described surperficial basic unit is plane or curved-surface structure.
7. a kind of oversize multi-point touch sensing unit according to claim 2, is characterized in that: gather the control integration circuit by a data stream output interface with a data stream input interface and described induced signal after the ultrafine wire of described network electromagnetic inductive layer collects and be connected; Described data stream input interface has the independently ultrafine wire signal output interface of X-axis and Y-axis; Described data stream output interface and data stream input interface are flexible print circuit, electrode or contact pin.
8. a kind of oversize multi-point touch sensing unit according to claim 1 is characterized in that: it is to have the integrated circuit of multi-point touch signals collecting, processing and computer standard output interface function or the circuit main board that integrated circuit combines with P.e.c. that described induced signal gathers the control integration circuit; Described induced signal gathers the control integration circuit and comprises:
Power transfer module, convert the input voltage of communication interface in acquisition system mimic channel and the required voltage of digital circuit, and input power and out-put supply isolated, and to prevent external power source, by communication interface, produces interference;
The transtation mission circuit module, the required pumping signal for generation of capacitance detecting, respectively the X-axis on ultrafine wire, Y-axis point of crossing are discharged and recharged to scanning successively, and the matrix signal that scanning is obtained is sent to the CPU processing module, under the control of CPU processing module, the matrix signal that timesharing receives different receiving cables sends to receiving circuit module;
Receiving circuit module, by the matrix signal received amplified, rectification and filtering conversion, matrix signal converts data-signal to the most at last, and sends into the CPU processing module and processed;
And the CPU processing module, control the operation that described induced signal gathers the control integration circuit, and final collection signal is carried out to digital operation and processing, transfer to calculation control unit and carry out the multiple spot identifying processing.
9. a kind of oversize multi-point touch sensing unit according to claim 1, it is characterized in that: described touch-control driver comprises the DSP data processor, for carrying out multiple spot identification, and the touch-control sensitivity of described touch-control sensing unit and the calibration of threshold values, whether detect described ultrafine wire has broken string and electromagnetic interference (EMI) degree simultaneously.
10. a kind of oversize multi-point touch sensing unit according to claim 9, it is characterized in that: described touch-control driver is arranged in the operating system of calculation control unit, or is arranged in the hardware driving device of independently exempting from Installation and Debugging; The operating system of described calculation control unit comprises Linux, Windows or Android.
11. the recognition methods according to described any one oversize multi-point touch sensing unit of claim 1 ~ 10, is characterized in that comprising the steps:
Step 1, by power transfer module, become induced signal to gather mimic channel and digital circuit required voltage in the control integration circuit voltage transitions input voltage of communication interface, and input power and out-put supply are isolated, produce interference to prevent external power source by communication interface;
Step 2, send pumping signal by the transtation mission circuit module, and to ultrafine wire, each point of crossing on X-axis, Y-axis is discharged and recharged scanning respectively successively, and the matrix signal that scanning is obtained is sent to the CPU processing module;
Step 3, under the control of CPU processing module, the matrix signal that timesharing receives different receiving cables sends to receiving circuit module;
Step 4, receiving circuit module is amplified the matrix signal received, rectification and filtering conversion, matrix signal converts data-signal to the most at last, send into the CPU processing module and processed, formation rule matrix data stream, be sent to calculation control unit by communication interface output;
Step 5, network electromagnetic inductive basic unit is carried out to multi-point touch operation, the traffic flow information produced is input to induced signal by data stream output interface and data stream input interface and gathers the control integration circuit, and induced signal gathers the control integration circuit to carry out acquisition and processing to the data stream information and form initial matrix signal and export by communication interface;
Step 6, initial matrix signal, by the input interface input of calculation control unit, carries out the data processing by the DSP data processor, draws the physical location of multi-point touch, thus the identification multi-point touch operation.
12. the recognition methods of a kind of oversize multi-point touch sensing unit according to claim 11 is characterized in that: described DSP data processor comprises centroid algorithm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN201310426937.0A CN103488340B (en) | 2013-09-18 | 2013-09-18 | Oversize multipoint touch sensing unit and recognition method thereof |
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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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| JP2004192093A (en) * | 2002-12-09 | 2004-07-08 | Micro Gijutsu Kenkyusho:Kk | Transparent touch panel and method for manufacturing the same |
| CN101615096A (en) * | 2009-07-28 | 2009-12-30 | 苏州品美信息科技有限公司 | Imaging touch control film and use the large-screen interactive media system of this imaging touch control film |
| CN102023765A (en) * | 2009-09-14 | 2011-04-20 | 义隆电子股份有限公司 | Positioning method for capacitance touch control plate of two dimension type configuration |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015039363A1 (en) | 2015-03-26 |
| CN103488340B (en) | 2017-04-12 |
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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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