CN109885213A - Touch signal processing method and intelligent interactive panel - Google Patents

Touch signal processing method and intelligent interactive panel Download PDF

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Publication number
CN109885213A
CN109885213A CN201910182050.9A CN201910182050A CN109885213A CN 109885213 A CN109885213 A CN 109885213A CN 201910182050 A CN201910182050 A CN 201910182050A CN 109885213 A CN109885213 A CN 109885213A
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China
Prior art keywords
touch
touch point
master chip
chip system
point
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CN201910182050.9A
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Chinese (zh)
Inventor
邱伟波
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Priority to CN201910182050.9A priority Critical patent/CN109885213A/en
Publication of CN109885213A publication Critical patent/CN109885213A/en
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Abstract

The embodiment of the application discloses a touch signal processing method and an intelligent interaction panel, wherein the touch signal processing method is applied to the intelligent interaction panel, and the intelligent interaction panel at least comprises the following steps: touch equipment, main chip system, the method includes: the touch equipment acquires a touch signal; the touch equipment sends a touch signal to the main chip system; the main chip system processes the touch signal to obtain position information, area information and moving trend of a touch point; and the main chip system responds according to the position information, the area information and the moving trend of the touch point. Through the embodiment of the application, the problems that the cost of the touch equipment is increased and the size of the touch equipment is increased due to high cost and large size of a high-performance chip are solved, and the effects of reducing the cost of the touch equipment and reducing the size of the touch equipment are achieved.

Description

Touch signal processing method, intelligent interaction plate
Technical field
This application involves intelligent interaction plate fields, in particular to a kind of touch signal processing method, intelligent interaction Plate.
Background technique
Intelligent interaction plate, also known as interactive intelligent tablet computer, be by touch technology to display content on the touchscreen into Row manipulation and the integration apparatus for realizing man-machine interactive operation.This integration of equipments projector, electronic whiteboard, curtain, sound equipment, The multiple functions of television set, video conference terminal.
When user carries out touch operation to the corresponding touch screen of touch apparatus, the touch sensor of touch apparatus can be adopted Collect touch signal, the chip of touch apparatus handles touch signal, and touch signal is sent to master chip system by treated System carries out touch-responsive by master chip system.
And with the raising of touch accuracy, the chip of touch apparatus semaphore to be treated is increasing, to its signal Processing capacity requirement is also higher and higher, and in order to improve signal handling capacity, touch apparatus is needed using high performance chip, and high The chip cost of performance is high, volume is big, and the cost that will cause touch apparatus improves and volume increases.
Summary of the invention
The main purpose of the application is to provide a kind of touch signal processing method, intelligent interaction plate, existing to solve The problem of cost that high performance chip cost is high in technology, volume causes greatly touch apparatus improves and volume increases.
To achieve the goals above, according to the one aspect of the application, a kind of touch signal processing method is provided, it is described Touch signal processing method is applied to intelligent interaction plate, and the intelligent interaction plate includes at least: touch apparatus, master chip system System, which comprises the touch apparatus acquires touch signal;The touch signal is sent to described by the touch apparatus Master chip system;The master chip system handles the touch signal, obtains location information, the area information of touch point And mobile trend;The master chip system is responded according to the location information of the touch point, area information and mobile trend.
Further, the master chip system handles the touch signal, obtains the location information of touch point, packet Include: the master chip system determines the scanning ray being blocked according to the touch signal;The master chip system is according to The scanning ray being blocked determines the location information of the touch point.
Further, the scanning ray being blocked includes the orthogonal scanning light being blocked and what is be blocked oblique sweep Light is retouched, the scanning ray that the master chip system is blocked according to determines the location information of the touch point, comprising: institute State the location information that master chip system determines the touch point according to the orthogonal scanning light being blocked, the touch point packet Include at least one true touch point and at least one deceitful point;The master chip system is according to the oblique scanning ray being blocked Deceitful point in the touch point is filtered, true touch point is obtained;The master chip system determines the true touch point Location information.
Further, after the master chip system determines the location information of the true touch point, the method is also It include: the quantity and lamp that the master chip system determines the corresponding transmitting fluorescent tube of the orthogonal scanning light being blocked, receives fluorescent tube Tube spacing;The master chip system according to the orthogonal scanning light being blocked it is corresponding transmitting fluorescent tube, receive fluorescent tube quantity and Fluorescent tube spacing determines the area information of the true touch point.
Further, the touch point includes number touch point and newly-increased touch point, the master chip system according to Before location information, area information and the mobile trend of the touch point are responded, the method also includes: the master chip System judges whether there is newly-increased touch point according to the mobile trend of the touch point;It is if there is newly-increased touch point, then described The newly-increased touch point is numbered in master chip system, location information of the master chip system according to the touch point, face Product information and mobile trend are responded, comprising: location information, area of the master chip system according to numbered touch point Information and mobile trend are responded.
Further, the corresponding touch screen of the touch apparatus is infrared type touch screen.
Further, the intelligent interaction plate further includes object module system, in the master chip system to the touching Signal is touched to be handled, after obtaining location information, area information and the mobile trend of touch point, the method also includes: institute It states master chip system and sends touch data to the object module system, the touch data carries the position letter of the touch point Breath, area information and mobile trend;The object module system is responded according to the touch data.
Further, the object module system has multiple, and the master chip system is sent to the object module system Touch data, comprising: the master chip system receives selection instruction, and the selection instruction is used to indicate from multiple target moulds One is selected in block system;The master chip system selects one from multiple object module systems according to the selection instruction It is a;The master chip system sends the touch data to the object module system selected.
To achieve the goals above, according to the one aspect of the application, a kind of intelligent interaction plate, the intelligence are provided Interaction plate includes at least: touch apparatus, master chip system, the touch apparatus is for acquiring touch signal;The touch is set It is ready for use on and the touch signal is sent to the master chip system;The master chip system is used to carry out the touch signal Processing, obtains location information, area information and the mobile trend of touch point;The master chip system is also used to according to the touch Location information, area information and the mobile trend of point are responded.
Further, the master chip system is also used to: the scanning ray being blocked is determined according to the touch signal;Root The location information of the touch point is determined according to the scanning ray being blocked.
Further, the scanning ray being blocked includes the orthogonal scanning light being blocked and what is be blocked oblique sweep Light is retouched, the master chip system is also used to: determining the position of the touch point according to the orthogonal scanning light being blocked Information, the touch point include at least one true touch point and at least one deceitful point;According to the oblique scanning being blocked Light is filtered the deceitful point in the touch point, obtains true touch point;Determine the location information of the true touch point.
Further, the master chip system is also used to: after the location information for determining the true touch point, being determined The corresponding transmitting fluorescent tube of the orthogonal scanning light being blocked, the quantity and fluorescent tube spacing for receiving fluorescent tube;It is orthogonal according to what is be blocked The corresponding transmitting fluorescent tube of scanning ray, the quantity for receiving fluorescent tube and fluorescent tube spacing determine the area information of the true touch point.
Further, the touch point is also used to including number touch point and newly-increased touch point, the master chip system: Before being responded according to the location information of the touch point, area information and mobile trend, according to the shifting of the touch point Dynamic Trend judgement whether there is newly-increased touch point;If there is newly-increased touch point, then the newly-increased touch point is numbered;Root It is responded according to the location information of numbered touch point, area information and mobile trend.
Further, the corresponding touch screen of the touch apparatus is infrared type touch screen.
Further, the intelligent interaction plate further includes object module system, and the master chip system is also used to: right The touch signal is handled, after obtaining location information, area information and the mobile trend of touch point, Xiang Suoshu target mould Block system sends touch data, and the touch data carries location information, area information and the mobile trend of the touch point;Institute Object module system is stated for being responded according to the touch data.
Further, the object module system has multiple, and the master chip system is also used to: receiving selection instruction, institute It states selection instruction and is used to indicate the selection one from multiple object module systems;According to the selection instruction from multiple described One is selected in object module system;The touch data is sent to the object module system selected.
In the embodiment of the present application, touch apparatus acquires touch signal, and touch signal is sent to master chip by touch apparatus System, master chip system handle touch signal, obtain location information, area information and the mobile trend of touch point, main Chip system is responded according to the location information of touch point, area information and mobile trend, due to the location information of touch point, Area information and mobile trend are to calculate in master chip system, rather than calculate in the chip of touch apparatus, therefore, The chip of touch apparatus semaphore to be treated is smaller, also relatively low to the requirement of its signal handling capacity, and touch apparatus is not It needs using high performance chip, the chip of general performance also meets requirement, avoids high performance core in the prior art The problem of piece is at high cost, volume causes greatly the cost of touch apparatus to improve and volume increases, reduces the cost of touch apparatus, subtracts The small volume of touch apparatus.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, the schematic reality of the application Example and its explanation are applied for explaining the application, is not constituted an undue limitation on the present application.In the accompanying drawings:
Fig. 1 is the hardware topology schematic diagram of intelligent interaction plate in the related technology;
Fig. 2-1 is a kind of hardware topology schematic diagram of optional intelligent interaction plate provided by the embodiments of the present application;
Fig. 2-2 is a kind of hardware topology schematic diagram of optional intelligent interaction plate provided by the embodiments of the present application;
Fig. 2-3 is a kind of hardware topology schematic diagram of optional intelligent interaction plate provided by the embodiments of the present application;
Fig. 3 is a kind of flow chart of optional touch signal processing method provided by the embodiments of the present application;
Fig. 4-1 is a kind of optional infrared touch frame fluorescent tube schematic layout pattern provided by the embodiments of the present application;
Fig. 4-2 is a kind of optional infrared touch frame fluorescent tube schematic layout pattern provided by the embodiments of the present application;
Fig. 5-1 is a kind of schematic diagram of optional scanning ray and touch point provided by the embodiments of the present application;
Fig. 5-2 is a kind of schematic diagram of optional scanning ray and touch point provided by the embodiments of the present application;
Fig. 5-3 is a kind of schematic diagram of optional scanning ray and touch point provided by the embodiments of the present application;
Fig. 6 is a kind of flow chart of optional touch signal processing method provided by the embodiments of the present application;
Fig. 7 is a kind of flow chart that master chip system handles touch signal provided by the embodiments of the present application.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
Fig. 1 is the hardware topology schematic diagram of intelligent interaction plate in the related technology, and the chip of touching box control panel is to touch Signal is handled (including touch point location, touch areal calculation etc.), and by treated, result is given by communications interface transmission Master chip system.
Fig. 2-1 is a kind of hardware topology schematic diagram of optional intelligent interaction plate provided by the embodiments of the present application, is touched Frame control panel gives touch signal to master chip system by communications interface transmission, and master chip system handles touch signal (including touch point location, touch areal calculation etc.), touch data is obtained, master chip system responds touch data.
Fig. 2-2 is a kind of hardware topology schematic diagram of optional intelligent interaction plate provided by the embodiments of the present application, is touched Frame control panel gives touch signal to master chip system by communications interface transmission, and master chip system handles touch signal (including touch point location, touch areal calculation etc.), obtain touch data.Master chip system responds touch data, and And touch data is sent to the second modular system by communication interface, so that the second modular system rings touch data It answers.
Fig. 2-3 is a kind of hardware topology schematic diagram of optional intelligent interaction plate provided by the embodiments of the present application, is touched Frame control panel gives touch signal to master chip system by communications interface transmission, and master chip system handles touch signal (including touch point location, touch areal calculation etc.), obtain touch data.Switch one object module of selection is selected by USB System, object module system can be one in the second modular system, third modular system or other modular systems.Master chip System responds touch data, and touch data is sent to object module system by communication interface, so that target Modular system responds touch data.
The embodiment of the present application provides a kind of flow chart of optional touch signal processing method, touch signal processing method Applied to intelligent interaction plate, intelligent interaction plate is included at least: touch apparatus, master chip system, as shown in figure 3, this method Include:
Step S102: touch apparatus acquires touch signal.
Step S104: touch signal is sent to master chip system by touch apparatus.
Step S106: master chip system handles touch signal, obtain the location information of touch point, area information and Mobile trend.
Step S108: master chip system is responded according to the location information of touch point, area information and mobile trend.
The corresponding type of touch screens of touch apparatus can be the classes such as electromagnetic type, infrared type, condenser type, resistance-type, pressure-sensitive Type.
When the corresponding type of touch screens difference of touch apparatus, the type of the touch sensor of touch apparatus is different, acquisition Touch signal it is also not exactly the same, enumerate several touch sensors below for different types of touch screen:
Type one: touch screen is infrared type touch screen, and touch sensor is infrared touch frame, and the touch signal of acquisition can To include the signal for indicating infrared ray and being obstructed.
Type two: touch screen is electromagnetical type touch screen, and touch sensor is magnetic board, and the touch signal of acquisition can wrap Include the variable quantity of magnetic flux and the frequency of received electromagnetic signal.
Type three: touch screen is capacitive touch screen, and touch sensor is capacitive type touch pad, the touch signal of acquisition It may include the electric current for flowing through each electrode of touch screen.
Type four: touch screen is resistive touch screen, and touch sensor is resistive touch plate, the touch signal of acquisition It may include the voltage of touch location.
Type five: touch screen is pressure-sensitive touch screen, and touch sensor is pressure sensor, and the touch signal of acquisition can To include pressure signal.
Master chip system handles touch signal, obtains location information, area information and the mobile trend of touch point.
The location information of touch point can refer to the coordinate information of touch point.Since the contact area of touch has certain face Therefore product by calculating contact area covers how many pixel, it is much to be able to know that the area of contact area has.According to touching Mobile trend a little is touched, it is known that whether having newly-increased touch point, it can also be seen that it is that touch signal is corresponding by which type of behaviour It instructs.
In the embodiment of the present application, touch apparatus acquires touch signal, and touch signal is sent to master chip by touch apparatus System, master chip system handle touch signal, obtain location information, area information and the mobile trend of touch point, main Chip system is responded according to the location information of touch point, area information and mobile trend, due to the location information of touch point, Area information and mobile trend are to calculate in master chip system, rather than calculate in the chip of touch apparatus, therefore, The chip of touch apparatus semaphore to be treated is smaller, also relatively low to the requirement of its signal handling capacity, and touch apparatus is not It needs using high performance chip, the chip of general performance also meets requirement, avoids high performance core in the prior art The problem of piece is at high cost, volume causes greatly the cost of touch apparatus to improve and volume increases, reduces the cost of touch apparatus, subtracts The small volume of touch apparatus.
Optionally, the corresponding touch screen of touch apparatus is infrared type touch screen.
Infrared type touch screen, also known as infrared technology touch screen, by the touch screen outline border infrared ray transmitting with It receives sensing element to constitute, in screen surface, forms infra-red detection net, any touching object can be changed infrared on contact Line and realize touch screen operation.The realization principle of infrared-type touch screen is similar to surface acoustic wave type touch-control, it uses red Outside line transmitting and reception sensing element.These elements screen surface formed infra-red detection net, touch control operation object (such as Finger) it can change the infrared ray of electric shock, and then be converted to the coordinate position of touch-control and realize the response of operation.In infrared ray On formula touch screen, the circuit board arrangement of the four sides arrangement of screen has infrared transmitting tube and infrared receiving tube, is correspondingly formed vertical and horizontal friendship The infrared ray matrix of fork.
Fig. 4-1, Fig. 4-2 be according to the optional infrared touch frame fluorescent tube schematic layout pattern of the embodiment of the present application, Fig. 4-1, One shares 500 pairs of fluorescent tubes in Fig. 4-2, and a pair of of fluorescent tube includes a transmitting fluorescent tube and a reception fluorescent tube, for example, Tx-1 signal lamp pipe (transmitting fluorescent tube) and Rx-1, signal lamp pipe (receiving fluorescent tube) are a pair of of fluorescent tube;Tx-2 signal lamp pipe (transmitting fluorescent tube) and Rx-2, signal lamp pipe (receiving fluorescent tube) is a pair of of fluorescent tube;……;Tx-200 signal lamp pipe (transmitting fluorescent tube) and Rx-200, signal lamp pipe (receiving fluorescent tube) are one To fluorescent tube;Tx-201 signal lamp pipe (transmitting fluorescent tube) and Rx-201, signal lamp pipe (receiving fluorescent tube) are a pair of of fluorescent tube;……;Tx-500 Signal lamp pipe (transmitting fluorescent tube) and Rx-500, signal lamp pipe (receiving fluorescent tube) are a pair of of fluorescent tube.
Optionally, master chip system handles touch signal, obtains the location information of touch point, comprising: master chip System determines the scanning ray being blocked according to touch signal;Master chip system determines touch point according to the scanning ray being blocked Location information.
Optionally, the scanning ray being blocked includes the orthogonal scanning light being blocked and the oblique scanning light that is blocked Line, master chip system determine the location information of touch point according to the scanning ray being blocked, comprising: master chip system is according to being hidden The orthogonal scanning light of gear determines the location information of touch point, and touch point includes at least one true touch point and at least one is deceitful Point;Master chip system is filtered the deceitful point in touch point according to the oblique scanning ray being blocked, and obtains true touch point; Master chip system determines the location information of true touch point.
Orthogonal scanning, such as shown in Fig. 4-1, the transmitting of Tx-1 signal lamp pipe, Rx-1, signal lamp pipe are received, this is transversal scanning;Together Reason, the transmitting of Tx-201 signal lamp pipe, Rx-201, signal lamp pipe receive, this is longitudinal scanning.This two light just form orthogonal scanning.
Oblique scanning, such as shown in Fig. 4-2, the transmitting of Tx-1 signal lamp pipe, Rx-2, signal lamp pipe, Rx-3, signal lamp pipe, Rx-4, number Fluorescent tube ..., Rx-200, signal lamp pipe receive, these are oblique scanning.
As shown in fig. 5-1, when finger or pen are in D1 touch, orthogonal scanning light L1 and L2 are blocked.By to touching It touches signal to be handled, determines that orthogonal scanning the light L1 and L2 being blocked, the intersection point of orthogonal scanning light L1 and L2 are Touch point.In the case where multiple point touching, there are deceitful points for the touch point determined by the above method.For example, such as Fig. 5-2 It is shown, when finger or pen are when D1 point and D2 touch simultaneously, by handling touch signal, determine the longitudinal direction being blocked Scanning ray L1, L4 and transversal scanning light L2, L3, the intersection point of orthogonal scanning light L1 and L2 are D1, orthogonal scanning light L1 Intersection point with L3 is D3, and the intersection point of orthogonal scanning light L4 and L2 are D4, and the intersection point of orthogonal scanning light L4 and L3 are D2.This 4 In a intersection point, intersection point D1 and intersection point D2 are true touch point, and intersection point D3 and intersection point D4 are deceitful point.Distinguish true touch point and deceitful point Method be: whether the oblique scanning ray where judging touch point is blocked;If the oblique scanning ray where touch point is hidden Gear, it is determined that the touch point is true touch point;If the oblique scanning ray where touch point is not blocked, it is determined that the touching Touching is a little deceitful point.As shown in Fig. 5-3, scanning ray L5 is an oblique scanning ray where the D3 of touch point, and scanning ray L6 is An oblique scanning ray where the D1 of touch point.Assuming that judging that scanning ray L5 is not blocked, it is determined that touch point D3 is Deceitful point.Assuming that judging that scanning ray L6 is blocked, it is determined that touch point D1 is true touch point.
Optionally, after master chip system determines the location information of true touch point, method further include: master chip system The quantity and fluorescent tube spacing for determining the corresponding transmitting fluorescent tube of the orthogonal scanning light being blocked, receiving fluorescent tube;Master chip system root True touch point is determined according to the corresponding transmitting fluorescent tube of the orthogonal scanning light being blocked, the quantity of reception fluorescent tube and fluorescent tube spacing Area information.
It, can since the contact between finger and touch screen has certain contact area when touching touch screen with finger Multi-strip scanning light can be blocked, according to the quantity and fluorescent tube of the corresponding transmitting fluorescent tube of the scanning ray being blocked, reception fluorescent tube Spacing determines contact area.
Assuming that the fluorescent tube quantity being blocked in the horizontal direction is n1, the fluorescent tube quantity being blocked in the vertical direction is N2, fluorescent tube spacing is d1 in horizontal direction, and fluorescent tube spacing is d2 on vertical direction, then the calculation formula of contact area S is S=n1 ×n2×d1×d2。
Optionally, touch point includes number touch point and newly-increased touch point, in master chip system according to the position of touch point Before confidence breath, area information and mobile trend are responded, method further include: master chip system becomes according to the movement of touch point Gesture judges whether there is newly-increased touch point;If there is newly-increased touch point, then newly-increased touch point is numbered in master chip system, Master chip system is responded according to the location information of touch point, area information and mobile trend, comprising: master chip system according to Location information, area information and the mobile trend of numbered touch point are responded.
In user's writing process, judge whether the first touch point appears in what the second touch point and third touch point were constituted On straight line or within rectilinear periphery preset range, the second touch point and third touch point are upper nearest with the first touch point time Two historical touch points, the second touch point the first touch point of distance upper than the third touch point time are closer;If the first touch point It appears on the straight line that the second touch point and third touch point are constituted or within rectilinear periphery preset range, it is determined that first touches The coordinate of point, obtains the first coordinate, the coordinate of the second touch point is updated to the first coordinate;If the first touch point does not occur On the straight line that the second touch point and third touch point are constituted or within rectilinear periphery preset range, it is determined that the first touch point is Newly-increased touch point is numbered for the first touch point, and records the coordinate of the first touch point.
For example, user is using five fingers touch touch screens and on the touchscreen according to default straight line or curved slide motion hand Refer to, then the variation of the coordinate of the contact point of each finger and touch screen also complies with default straight line or curve, to each finger and touching The contact point for touching screen, is all numbered, and obtains 5 id.
If user is using five fingers touch touch screens and on the touchscreen according to default straight line or curved slide motion finger During, it has increased six roots of sensation finger newly and has touched touch screen, record six roots of sensation finger is newly-increased connect with flat contact point is touched Contact, and be numbered (newly-increased id) for six roots of sensation finger, record six roots of sensation finger and the coordinate for touching flat contact point.
Optionally, intelligent interaction plate further includes object module system, is handled in master chip system touch signal, After obtaining location information, area information and the mobile trend of touch point, method further include: master chip system is to object module system System sends touch data, and touch data carries location information, area information and the mobile trend of touch point;Object module system root It is responded according to touch data.
Optionally, object module system has multiple, and master chip system sends touch data to object module system, comprising: Master chip system receives selection instruction, and selection instruction, which is used to indicate from multiple object module systems, selects one;Master chip system System selects one according to selection instruction from multiple object module systems;Master chip system is sent out to the object module system selected Send touch data.
Object module system can be the second modular system, third modular system shown in Fig. 2-3.Object module system Uniting, it is multiple to have, and is selected by USB selection switch object module system, for example, being selected by USB selection switch Second modular system, then master chip system sends touch data to the second modular system, and the second modular system receives touch data Later, it is responded according to touch data, has selected third modular system alternatively, switching by USB selection, then master chip system Touch data is sent after third modular system receives touch data to third modular system to be responded according to touch data.
Fig. 6 is that the embodiment of the present application provides a kind of flow chart of optional touch signal processing method, as shown in fig. 6, Touching box (i.e. above-mentioned touch apparatus) carries out signal acquisition, and the mode of signal acquisition can scan for infrared lamp, and touching box will The signal of acquisition is sent to the device drives of master chip system, and master chip system handles signal, obtains the seat of touch point Mark and touch area, and carry out ID and chase after point (process i.e. described above for judging whether there is newly-increased touch point).Later, master chip system System response touch data.The coordinate of touch point is obtained in master chip system and touches area, and is carried out after ID chases after a little, master chip Touch data can also be sent to other modular systems by system, such as master chip system is sent out touch data by USB device The second modular system is given, the second modular system responds touch data.Second modular system can be PC module.For example, in electricity Brain is thrown in screen application, it is assumed that carrying out throwing screen is a PPT, then intelligent interaction plate sends touch data to computer, electricity Brain receives touch data and carries out page turning to PPT, to realize touch retransmission function.
Fig. 7 shows the specific steps of the S403 in Fig. 6, as shown in fig. 7, the process of data processing the following steps are included: S500 to S510.
S500, the analysis of orthogonal scanning reception pipe data.
S501 finds touch points, includes deceitful point.
S502 tiltedly scans the analysis of reception pipe data.
S503 finds actual touch points, removes deceitful point.
S504 according to transmitting fluorescent tube serial number and receives fluorescent tube serial number and fluorescent tube spacing, converses coordinate a little.
S505 converses whether current touch point meets trend according to 2 points of the id of history point and corresponding history In range.
S506 traverses the id used, judges whether current touch point meets trend range.If so, executing S507; If not, executing S508.
S507, navigates to the id of touch point, and the coordinate for updating current point is history coordinate.
S508 is retrieved since 0, id of the not used id as current new touch point.
S509 is obtained according to the information (transmitting lamp strip position receives lamp strip position and fluorescent tube spacing parameter) of current point The rectangular area physical message of touch point out.
S510 packages according to protocol format, touch data output.
The embodiment of the present application also provides a kind of intelligent interaction plate, intelligent interaction plate is included at least: touch apparatus, master Chip system.
Touch apparatus is for acquiring touch signal;
Touch apparatus is used to touch signal being sent to master chip system;
Master chip system obtains location information, area information and the movement of touch point for handling touch signal Trend;
Master chip system is also used to be responded according to the location information of touch point, area information and mobile trend.
The corresponding type of touch screens of touch apparatus can be the classes such as electromagnetic type, infrared type, condenser type, resistance-type, pressure-sensitive Type.
When the corresponding type of touch screens difference of touch apparatus, the type of the touch sensor of touch apparatus is different, acquisition Touch signal it is also not exactly the same, enumerate several touch sensors below for different types of touch screen:
Type one: touch screen is infrared type touch screen, and touch sensor is infrared touch frame, and the touch signal of acquisition can To include the signal for indicating infrared ray and being obstructed.
Type two: touch screen is electromagnetical type touch screen, and touch sensor is magnetic board, and the touch signal of acquisition can wrap Include the variable quantity of magnetic flux and the frequency of received electromagnetic signal.
Type three: touch screen is capacitive touch screen, and touch sensor is capacitive type touch pad, the touch signal of acquisition It may include the electric current for flowing through each electrode of touch screen.
Type four: touch screen is resistive touch screen, and touch sensor is resistive touch plate, the touch signal of acquisition It may include the voltage of touch location.
Type five: touch screen is pressure-sensitive touch screen, and touch sensor is pressure sensor, and the touch signal of acquisition can To include pressure signal.
Master chip system handles touch signal, obtains location information, area information and the mobile trend of touch point.
The location information of touch point can refer to the coordinate information of touch point.Since the contact area of touch has certain face Therefore product by calculating contact area covers how many pixel, it is much to be able to know that the area of contact area has.According to touching Mobile trend a little is touched, it is known that whether having newly-increased touch point, it can also be seen that it is that touch signal is corresponding by which type of behaviour It instructs.
In the embodiment of the present application, touch apparatus acquires touch signal, and touch signal is sent to master chip by touch apparatus System, master chip system handle touch signal, obtain location information, area information and the mobile trend of touch point, main Chip system is responded according to the location information of touch point, area information and mobile trend, due to the location information of touch point, Area information and mobile trend are to calculate in master chip system, rather than calculate in the chip of touch apparatus, therefore, The chip of touch apparatus semaphore to be treated is smaller, also relatively low to the requirement of its signal handling capacity, and touch apparatus is not It needs using high performance chip, the chip of general performance also meets requirement, avoids high performance core in the prior art The problem of piece is at high cost, volume causes greatly the cost of touch apparatus to improve and volume increases, reduces the cost of touch apparatus, subtracts The small volume of touch apparatus.
Optionally, the corresponding touch screen of touch apparatus is infrared type touch screen.
Infrared type touch screen, also known as infrared technology touch screen, by the touch screen outline border infrared ray transmitting with It receives sensing element to constitute, in screen surface, forms infra-red detection net, any touching object can be changed infrared on contact Line and realize touch screen operation.The realization principle of infrared-type touch screen is similar to surface acoustic wave type touch-control, it uses red Outside line transmitting and reception sensing element.These elements screen surface formed infra-red detection net, touch control operation object (such as Finger) it can change the infrared ray of electric shock, and then be converted to the coordinate position of touch-control and realize the response of operation.In infrared ray On formula touch screen, the circuit board arrangement of the four sides arrangement of screen has infrared transmitting tube and infrared receiving tube, is correspondingly formed vertical and horizontal friendship The infrared ray matrix of fork.
Fig. 4-1, Fig. 4-2 be according to the optional infrared touch frame fluorescent tube schematic layout pattern of the embodiment of the present application, Fig. 4-1, One shares 500 pairs of fluorescent tubes in Fig. 4-2, and a pair of of fluorescent tube includes a transmitting fluorescent tube and a reception fluorescent tube, for example, Tx-1 signal lamp pipe (transmitting fluorescent tube) and Rx-1, signal lamp pipe (receiving fluorescent tube) are a pair of of fluorescent tube;Tx-2 signal lamp pipe (transmitting fluorescent tube) and Rx-2, signal lamp pipe (receiving fluorescent tube) is a pair of of fluorescent tube;……;Tx-200 signal lamp pipe (transmitting fluorescent tube) and Rx-200, signal lamp pipe (receiving fluorescent tube) are one To fluorescent tube;Tx-201 signal lamp pipe (transmitting fluorescent tube) and Rx-201, signal lamp pipe (receiving fluorescent tube) are a pair of of fluorescent tube;……;Tx-500 Signal lamp pipe (transmitting fluorescent tube) and Rx-500, signal lamp pipe (receiving fluorescent tube) are a pair of of fluorescent tube.
Optionally, master chip system is also used to: the scanning ray being blocked is determined according to touch signal;According to what is be blocked Scanning ray determines the location information of touch point.
Optionally, the scanning ray being blocked includes the orthogonal scanning light being blocked and the oblique scanning light that is blocked Line, master chip system are also used to: the location information of touch point are determined according to the orthogonal scanning light being blocked, touch point includes extremely A few true touch point and at least one deceitful point;The deceitful point in touch point was carried out according to the oblique scanning ray being blocked Filter, obtains true touch point;Determine the location information of true touch point.
Orthogonal scanning, such as shown in Fig. 4-1, the transmitting of Tx-1 signal lamp pipe, Rx-1, signal lamp pipe are received, this is transversal scanning;Together Reason, the transmitting of Tx-201 signal lamp pipe, Rx-201, signal lamp pipe receive, this is longitudinal scanning.This two light just form orthogonal scanning.
Oblique scanning, such as shown in Fig. 4-2, the transmitting of Tx-1 signal lamp pipe, Rx-2, signal lamp pipe, Rx-3, signal lamp pipe, Rx-4, number Fluorescent tube ..., Rx-200, signal lamp pipe receive, these are oblique scanning.
As shown in fig. 5-1, when finger or pen are in D1 touch, orthogonal scanning light L1 and L2 are blocked.By to touching It touches signal to be handled, determines that orthogonal scanning the light L1 and L2 being blocked, the intersection point of orthogonal scanning light L1 and L2 are Touch point.In the case where multiple point touching, there are deceitful points for the touch point determined by the above method.For example, such as Fig. 5-2 It is shown, when finger or pen are when D1 point and D2 touch simultaneously, by handling touch signal, determine the longitudinal direction being blocked Scanning ray L1, L4 and transversal scanning light L2, L3, the intersection point of orthogonal scanning light L1 and L2 are D1, orthogonal scanning light L1 Intersection point with L3 is D3, and the intersection point of orthogonal scanning light L4 and L2 are D4, and the intersection point of orthogonal scanning light L4 and L3 are D2.This 4 In a intersection point, intersection point D1 and intersection point D2 are true touch point, and intersection point D3 and intersection point D4 are deceitful point.Distinguish true touch point and deceitful point Method be: whether the oblique scanning ray where judging touch point is blocked;If the oblique scanning ray where touch point is hidden Gear, it is determined that the touch point is true touch point;If the oblique scanning ray where touch point is not blocked, it is determined that the touching Touching is a little deceitful point.As shown in Fig. 5-3, scanning ray L5 is an oblique scanning ray where the D3 of touch point, and scanning ray L6 is An oblique scanning ray where the D1 of touch point.Assuming that judging that scanning ray L5 is not blocked, it is determined that touch point D3 is Deceitful point.Assuming that judging that scanning ray L6 is blocked, it is determined that touch point D1 is true touch point.
Optionally, master chip system is also used to: after determining the location information of true touch point, determination is blocked just The quantity and fluorescent tube spacing handed over the corresponding transmitting fluorescent tube of scanning ray, receive fluorescent tube;According to the orthogonal scanning light pair being blocked The quantity and fluorescent tube spacing of the transmitting fluorescent tube, reception fluorescent tube answered determine the area information of true touch point.
It, can since the contact between finger and touch screen has certain contact area when touching touch screen with finger Multi-strip scanning light can be blocked, according to the quantity and fluorescent tube of the corresponding transmitting fluorescent tube of the scanning ray being blocked, reception fluorescent tube Spacing determines contact area.
Assuming that the fluorescent tube quantity being blocked in the horizontal direction is n1, the fluorescent tube quantity being blocked in the vertical direction is N2, fluorescent tube spacing is d1 in horizontal direction, and fluorescent tube spacing is d2 on vertical direction, then the calculation formula of contact area S is S=n1 ×n2×d1×d2。
Optionally, touch point is also used to including number touch point and newly-increased touch point, master chip system: according to touch Before location information, area information and the mobile trend of point are responded, judged whether there is according to the mobile trend of touch point Newly-increased touch point;If there is newly-increased touch point, then newly-increased touch point is numbered;According to the position of numbered touch point Information, area information and mobile trend are responded.
In user's writing process, judge whether the first touch point appears in what the second touch point and third touch point were constituted On straight line or within rectilinear periphery preset range, the second touch point and third touch point are upper nearest with the first touch point time Two historical touch points, the second touch point the first touch point of distance upper than the third touch point time are closer;If the first touch point It appears on the straight line that the second touch point and third touch point are constituted or within rectilinear periphery preset range, it is determined that first touches The coordinate of point, obtains the first coordinate, the coordinate of the second touch point is updated to the first coordinate;If the first touch point does not occur On the straight line that the second touch point and third touch point are constituted or within rectilinear periphery preset range, it is determined that the first touch point is Newly-increased touch point is numbered for the first touch point, and records the coordinate of the first touch point.
For example, user is using five fingers touch touch screens and on the touchscreen according to default straight line or curved slide motion hand Refer to, then the variation of the coordinate of the contact point of each finger and touch screen also complies with default straight line or curve, to each finger and touching The contact point for touching screen, is all numbered, and obtains 5 id.
If user is using five fingers touch touch screens and on the touchscreen according to default straight line or curved slide motion finger During, it has increased six roots of sensation finger newly and has touched touch screen, record six roots of sensation finger is newly-increased connect with flat contact point is touched Contact, and be numbered (newly-increased id) for six roots of sensation finger, record six roots of sensation finger and the coordinate for touching flat contact point.
Optionally, intelligent interaction plate further includes object module system, and master chip system is also used to: to touch signal into Row processing after obtaining location information, area information and the mobile trend of touch point, sends to object module system and touches number According to touch data carries location information, area information and the mobile trend of touch point;Object module system is used for according to touch number According to being responded.
Optionally, object module system has multiple, and master chip system is also used to: receiving selection instruction, selection instruction is used for Instruction selects one from multiple object module systems;One is selected from multiple object module systems according to selection instruction;To The object module system selected sends touch data.
Object module system can be the second modular system, third modular system shown in Fig. 2-3.Object module system Uniting, it is multiple to have, and is selected by USB selection switch object module system, for example, being selected by USB selection switch Second modular system, then master chip system sends touch data to the second modular system, and the second modular system receives touch data Later, it is responded according to touch data, has selected third modular system alternatively, switching by USB selection, then master chip system Touch data is sent after third modular system receives touch data to third modular system to be responded according to touch data.
It should be noted that since length is limited, there is no the embodiments that exhaustion is all in the application, as long as not mutually The feature contradicted can be freely optionally combined, and become the optional embodiment of the application.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two ", " third " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/ Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element There is also other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product. Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) Formula.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art, Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement, Improve etc., it should be included within the scope of the claims of this application.

Claims (16)

1. a kind of touch signal processing method, which is characterized in that the touch signal processing method is applied to intelligent interaction plate, The intelligent interaction plate includes at least: touch apparatus, master chip system, which comprises
The touch apparatus acquires touch signal;
The touch signal is sent to the master chip system by the touch apparatus;
The master chip system handles the touch signal, obtains location information, area information and the movement of touch point Trend;
The master chip system is responded according to the location information of the touch point, area information and mobile trend.
2. the method according to claim 1, wherein the master chip system to the touch signal at Reason, obtains the location information of touch point, comprising:
The master chip system determines the scanning ray being blocked according to the touch signal;
The scanning ray that the master chip system is blocked according to determines the location information of the touch point.
3. according to the method described in claim 2, it is characterized in that, the scanning ray being blocked include be blocked it is orthogonal Scanning ray and the oblique scanning ray being blocked, described in the scanning ray determination that the master chip system is blocked according to The location information of touch point, comprising:
The master chip system determines the location information of the touch point, the touching according to the orthogonal scanning light being blocked Touch a little includes at least one true touch point and at least one deceitful point;
The master chip system is filtered the deceitful point in the touch point according to the oblique scanning ray being blocked, and obtains To true touch point;
The master chip system determines the location information of the true touch point.
4. according to the method described in claim 3, it is characterized in that, determining the true touch point in the master chip system After location information, the method also includes:
The quantity and fluorescent tube that the master chip system determines the corresponding transmitting fluorescent tube of the orthogonal scanning light being blocked, receives fluorescent tube Spacing;
The master chip system is according to the corresponding quantity and fluorescent tube for emitting fluorescent tube, receiving fluorescent tube of the orthogonal scanning light being blocked Spacing determines the area information of the true touch point.
5. the method according to claim 1, wherein the touch point includes number touch point and newly-increased touch Point, before the master chip system is responded according to the location information of the touch point, area information and mobile trend, institute State method further include:
The master chip system judges whether there is newly-increased touch point according to the mobile trend of the touch point;
If there is newly-increased touch point, then the newly-increased touch point is numbered in the master chip system, the master chip system System responded according to the location information of the touch point, area information and mobile trend, comprising: the master chip system according to Location information, area information and the mobile trend of numbered touch point are responded.
6. the method according to claim 1, wherein the corresponding touch screen of the touch apparatus is infrared type touch Screen.
7. the method according to claim 1, wherein the intelligent interaction plate further includes object module system, The touch signal is handled in the master chip system, location information, area information and the movement for obtaining touch point become After gesture, the method also includes:
The master chip system sends touch data to the object module system, and the touch data carries the touch point Location information, area information and mobile trend;
The object module system is responded according to the touch data.
8. the method according to the description of claim 7 is characterized in that the object module system has multiple, the master chip system It unites and sends touch data to the object module system, comprising:
The master chip system receives selection instruction, and the selection instruction is used to indicate to be selected from multiple object module systems Select one;
The master chip system selects one according to the selection instruction from multiple object module systems;
The master chip system sends the touch data to the object module system selected.
9. a kind of intelligent interaction plate, the intelligent interaction plate is included at least: touch apparatus, master chip system, feature exist In,
The touch apparatus is for acquiring touch signal;
The touch apparatus is used to the touch signal being sent to the master chip system;
The master chip system for handling the touch signal, obtain the location information of touch point, area information and Mobile trend;
The master chip system is also used to be responded according to the location information of the touch point, area information and mobile trend.
10. intelligent interaction plate according to claim 9, which is characterized in that the master chip system is also used to:
The scanning ray being blocked is determined according to the touch signal;
The location information of the touch point is determined according to the scanning ray being blocked.
11. intelligent interaction plate according to claim 10, the scanning ray being blocked include be blocked it is orthogonal Scanning ray and the oblique scanning ray being blocked, which is characterized in that the master chip system is also used to:
The location information of the touch point is determined according to the orthogonal scanning light being blocked, the touch point includes at least one A true touch point and at least one deceitful point;
The deceitful point in the touch point is filtered according to the oblique scanning ray being blocked, obtains true touch point;
Determine the location information of the true touch point.
12. intelligent interaction plate according to claim 11, which is characterized in that the master chip system is also used to:
After the location information for determining the true touch point, the corresponding emission lamp of orthogonal scanning light being blocked is determined Pipe, the quantity and fluorescent tube spacing for receiving fluorescent tube;
It is determined according to the corresponding transmitting fluorescent tube of the orthogonal scanning light being blocked, the quantity of reception fluorescent tube and fluorescent tube spacing described true The area information of real touch point.
13. intelligent interaction plate according to claim 9, which is characterized in that the touch point includes number touch point With newly-increased touch point, the master chip system is also used to:
Before being responded according to the location information of the touch point, area information and mobile trend, according to the touch point Mobile trend judge whether there is newly-increased touch point;
If there is newly-increased touch point, then the newly-increased touch point is numbered;
It is responded according to the location information of numbered touch point, area information and mobile trend.
14. intelligent interaction plate according to claim 9, which is characterized in that the corresponding touch screen of the touch apparatus is Infrared type touch screen.
15. intelligent interaction plate according to claim 9, which is characterized in that the intelligent interaction plate further includes target Modular system,
The master chip system is also used to: being handled to the touch signal, is obtained location information, the area letter of touch point After breath and mobile trend, Xiang Suoshu object module system sends touch data, and the touch data carries the touch point Location information, area information and mobile trend;
The object module system according to the touch data for being responded.
16. intelligent interaction plate according to claim 15, which is characterized in that the object module system has multiple, institute Master chip system is stated to be also used to:
Selection instruction is received, the selection instruction, which is used to indicate from multiple object module systems, selects one;
One is selected from multiple object module systems according to the selection instruction;
The touch data is sent to the object module system selected.
CN201910182050.9A 2019-03-11 2019-03-11 Touch signal processing method and intelligent interactive panel Pending CN109885213A (en)

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Application publication date: 20190614