CN106325606A - Signal scanning method and device of infrared touch equipment and touch equipment - Google Patents
Signal scanning method and device of infrared touch equipment and touch equipment Download PDFInfo
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- CN106325606A CN106325606A CN201610824469.6A CN201610824469A CN106325606A CN 106325606 A CN106325606 A CN 106325606A CN 201610824469 A CN201610824469 A CN 201610824469A CN 106325606 A CN106325606 A CN 106325606A
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- control device
- touch control
- infrared
- infrared touch
- signal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- 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
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to a signal scanning method and device of infrared touch equipment and the touch equipment. The signal scanning method particularly comprises the steps that the first infrared touch equipment receives a synchronizing signal from the second infrared touch equipment, wherein the synchronizing signal is used for indicating the signal scanning direction of the second infrared touch equipment; the first infrared touch equipment determines the signal scanning direction of the first infrared touch equipment according to the signal scanning direction indicated by the synchronizing signal, wherein the signal scanning direction of the first infrared touch equipment is different from the signal scanning direction indicated by the synchronizing signal; the first infrared touch equipment conducts signal scanning on an infrared tube in the first infrared touch equipment according to the determined signal scanning direction of the first infrared touch equipment. Due to the fact that the first infrared touch equipment and the second infrared touch equipment conduct signal scanning on the infrared tubes in the devices according to the different scanning directions in the working process, signal interference between the two devices can be avoided, and the accuracy of user touch positioning is improved.
Description
Technical field
The present invention relates to technical field of touch control, particularly relate to the signal scanning method of a kind of infrared touch control device, device and
Touch control device.
Background technology
Infrared touch frame has low cost and reliability high, therefore obtains in large-sized touch control device extensively
Application.For making infrared touch control device can support more touch control operation function, generally multiple equipment are arranged together and make simultaneously
With.Such as, in the classroom being furnished with infrared touch control device, for recording the written contents in normal blackboard, at the four of normal blackboard
Arranging an infrared touch frame week, this infrared touch frame is connected with infrared touch control device by USB interface, and above-mentioned have infrared touching
The infrared touch panel of the control blackboard of frame and infrared touch control device is arranged together, both cooperatings, it is achieved the content of courses in
Now with writing function.
Fig. 1 is the touch-control system structural representation that two infrared touch control devices are arranged together.As it is shown in figure 1, this system
Including the first infrared touch panel 10 and the second infrared touch panel 20 of laid out in parallel, each infrared touch panel all includes scanning circuit
110, micro-control unit 120 (English: Microcontroller Unit, be called for short: MCU) and around being arranged on touch control device screen
The infrared touch frame of curtain surrounding, wherein, infrared touch frame includes infrared transmitting tube 131 and infrared receiving tube 132, infrared transmitting tube
131 respectively along the side that the two of which being horizontally and vertically evenly distributed on screen is adjacent, and infrared receiving tube 132 is the most respectively along horizontal
Axle and the longitudinal axis are evenly distributed on the side that the another two of screen is adjacent, and scanning circuit 110 includes launching scanning circuit and reception is swept
Scanning circuit, launches scanning circuit and connects infrared transmitting tube 131, receives scanning circuit and connects infrared receiving tube 132.Above-mentioned infrared
During touch control device work, the infrared transmitting tube 131 that MCU120 controls to launch in scanning circuit triggering transverse and longitudinal axle is swept with controlling reception
The infrared receiving tube 132 that scanning circuit scanning is corresponding with infrared transmitting tube 131, this work process is otherwise known as to infrared touch control device
In infrared tube carry out the process of signal scanning.If user touches the screen of touch control device, infrared linear to relevant position
One-tenth blocks, and then makes the amplitude of infrared signal that infrared receiving tube 132 receives change, according to infrared signal amplitude by becoming
Change, it is achieved user touch location positions.
Owing to above-mentioned two infrared touch panel is laterally arranged setting, thus the infrared transmitting tube in two infrared touch panels and
Close together between infrared receiving tube, and then cause when two infrared touch panels work simultaneously, the second infrared touch frame 20
The infrared ray that the infrared transmitting tube 131 of the middle longitudinal axis is launched may be connect by the infrared receiving tube of the longitudinal axis in the first infrared touch frame 10
Receive, and then the first infrared touch frame 10 is caused signal disturbing, affect the first infrared touch frame 10 and user is touched the standard of location
Really property judges.
Summary of the invention
For overcoming problem present in correlation technique, the present invention provides the scan method of a kind of infrared touch control device, device
And touch control device.
First aspect according to embodiments of the present invention, it is provided that the scan method of a kind of infrared touch control device, the method includes:
First infrared touch control device receives the synchronizing signal from the second infrared touch control device, and described synchronizing signal is used for referring to
Show the signal scanning direction of described second infrared touch control device；
Described first infrared touch control device, according to the signal scanning direction indicated by described synchronizing signal, determines described first
The signal scanning direction of infrared touch control device, wherein, the signal scanning direction of described first infrared touch control device is synchronization with described
The signal scanning direction of signal designation is different；
Described first infrared touch control device is according to the signal scanning direction of the described first infrared touch control device determined, right
Infrared tube in described first infrared touch control device carries out signal scanning.
Second aspect according to embodiments of the present invention, it is provided that the scanning means of a kind of infrared touch control device, this device includes:
Processor, memorizer and communication interface, described processor, described memorizer and described communication interface communication bus phase
Even；
Described communication interface, is used for receiving and sending signal；
Described memorizer, is used for storing program code；
Described processor, for reading the program code of storage in described memorizer, and performs above-mentioned infrared touch control device
Scan method.
The third aspect according to embodiments of the present invention, it is provided that a kind of touch control device, this equipment includes that above-mentioned infrared touch-control sets
Standby scanning means, also includes infrared touch frame:
Described device is connected with described infrared touch frame；
Being additionally provided with two communication interfaces on described device, a communication interface is used for sending synchronizing signal, another communication
Interface is used for receiving synchronizing signal.
From above technical scheme, the present invention implement provide the scan method of a kind of infrared touch control device, device and
Touch control device, when two infrared touch control devices are arranged together use, one of them infrared touch control device receive from
After the synchronizing signal of another infrared touch control device, first, this equipment is obtaining another touch control device according to this synchronizing signal
The signal scanning direction carried out, then, according to the direction different from the signal scanning direction of another touch control device, in its equipment
Infrared tube carry out signal scanning.Owing to, in two infrared touch control device work process, two equipment are according to different scanning sides
To, the infrared tube in equipment of itself is carried out signal scanning, therefore can avoid the signal disturbing between two equipment, improve
User is touched the accuracy of location.
It should be appreciated that it is only exemplary and explanatory, not that above general description and details hereinafter describe
The present invention can be limited.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the enforcement of the present invention
Example, and for explaining the principle of the present invention together with description.
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the touch-control system that two infrared touch control devices are arranged together；
The structure signal of the touch-control system knot that two infrared touch control devices that Fig. 2 provides for the embodiment of the present invention are arranged together
Figure；
The flow chart of the signal scanning method of a kind of infrared touch control device that Fig. 3 provides for the embodiment of the present invention；
The oscillogram of a kind of synchronizing signal that Fig. 4 provides for the embodiment of the present invention；
The flow chart of the signal scanning method of the infrared touch control device of another kind that Fig. 5 provides for the embodiment of the present invention；
Fig. 6 is in the stream of signal scanning method during main equipment pattern for the infrared touch control device that the embodiment of the present invention provides
Cheng Tu；
Fig. 7 is the structural representation of the signal scanning device of a kind of infrared touch control device that the embodiment of the present invention provides；
Fig. 8 is the structural representation of a kind of touch control device that the embodiment of the present invention provides.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the present invention.On the contrary, they are only with the most appended
The example of the apparatus and method that some aspects that described in detail in claims, the present invention are consistent.
In order to solve two infrared touch control devices be arranged together use time, infrared due in two infrared touch control devices
Touch frame close together, the signal interference problem during the signal scanning caused, embodiments provide one
The signal scanning method of infrared touch control device, device and touch control terminal.
The structure signal of the touch-control system knot that two infrared touch control devices that Fig. 2 provides for the embodiment of the present invention are arranged together
Figure.The setting as in figure 2 it is shown, the first infrared touch panel 10 of two touch control devices and the second infrared touch panel 20 are laterally arranged.
Wherein, the first infrared touch panel 10 includes scanning circuit 110, MCU120, sample circuit 130 and infrared touch frame
Including launching scanning circuit and receiving scanning circuit Deng, scanning circuit 110, infrared touch frame includes infrared transmitting tube 141 and red
External closed tube 142.
Launch scanning circuit to be connected with MCU120, for driving infrared transmitting tube 141 to launch red under the control of MCU120
Outside line；Receive scanning circuit to be connected with MCU120, for driving infrared receiving tube 142 to receive infrared under the control of MCU120
Line；Sample circuit 130 is connected with infrared receiving tube 142 and MCU120 respectively, for connecing infrared under the control of MCU120
The infrared ray that closed tube 142 receives is sampled, and sampled signal is sent to MCU120 for MCU120 determine whether receive
Touch control operation to user.
Same, the second infrared touch panel 20 also includes scanning circuit 210, MCU220, sample circuit 230 and infrared touches
Control frames etc., scanning circuit 210 includes launching scanning circuit and receiving scanning circuit, and infrared touch frame includes infrared transmitting tube 241
With infrared receiving tube 242, the annexation of above-mentioned each parts and effect be referred to the description about the first infrared touch panel 10,
Do not repeat them here.
Further, above-mentioned two MCU is all drawn two communication interfaces by the present embodiment, wherein, one be defined as
Receiving the signal receiving interface RX of data, one is defined as the signal transmission interface TX for sending data, in being embodied as,
Above-mentioned two interface is specifically configurable to GPIO, UART, I2C mouth etc..Wherein, in the MCU120 of the first infrared touch panel 10
Signal transmission interface 121 communicates to connect with the signal receiving interface 222 of the MCU220 of the second infrared touch panel 20, and first is infrared tactile
Touch the signal transmission interface 221 of the MCU220 of the signal receiving interface 122 in the MCU120 of screen 10 and the second infrared touch panel 20
Communication connection, by above-mentioned connection interface, couples together the touch frame on two touch screens.
In signal scanning work process, utilizing above-mentioned signaling interface to receive and send synchronizing signal, this synchronizing signal is used
In the signal scanning direction that its touch control device of instruction is current.When one of them infrared touch control device receives from another red
After the synchronizing signal of outer touch control device, first, this equipment obtains the ongoing letter of another touch control device according to this synchronizing signal
Number scanning direction, then, according to the signal scanning direction of another touch control device, according to the signal scanning side with another touch control device
To different directions, the infrared tube in its equipment is carried out signal scanning.Due in two infrared touch control device work process, two
Individual equipment, according to different scanning directions, carries out signal scanning, therefore can avoid two and set the infrared tube in equipment of itself
Signal disturbing between Bei.
Below with reference to accompanying drawing, the signal scanning method of the infrared touch control device of the embodiment of the present invention is described in detail.
The flow chart of the signal scanning method of a kind of infrared touch control device that Fig. 3 provides for the embodiment of the present invention, the method
Can be applicable in the system in Fig. 2, mainly include following process step:
S110: the first infrared touch control device receives the synchronizing signal from the second infrared touch control device, and this synchronizing signal is used
Signal scanning direction in instruction the second infrared touch control device.
First infrared touch control device passes through the signal receiving interface reception of MCU from the signal of the MCU of the second infrared tactile equipment
The synchronizing signal that transmission interface sends.
Concrete, this synchronizing signal can indicate the direction of its signal scanning in the way of using high and low level signal.As
Shown in Fig. 4, for the oscillogram of a kind of synchronizing signal that the embodiment of the present invention provides, two data communication interface acquiescences on MCU
For low level (can also be high level), T1 be the time of scanning transverse axis, for high level；T2 is the time of the scanning longitudinal axis, for low
Level is (if two data communication interfaces are defaulted as high level, the most on the contrary).
Owing to when having touch control operation in infrared touch control device, the signal disturbing between two equipment just can affect in equipment
Infrared touch frame user touched the accuracy of location judge, so, wherein in a kind of implementation, when infrared touch-control sets
When having touch operation in Bei, the MCU in infrared touch control device then generates above-mentioned synchronizing signal, and two equipment are pressed in other conditions
Carry out signal scanning according to self scan procedure, and produce without synchronizing signal.
S120: the first infrared touch control device, according to the signal scanning direction indicated by synchronizing signal, determines that first is infrared tactile
The signal scanning direction of control equipment, wherein, the signal that the signal scanning direction of the first infrared touch control device indicates with synchronizing signal
Scanning direction is different.
First infrared touch control device receives after the synchronizing signal of the second infrared touch control device, then initially enter from setting
Standby mode of operation, the mode of operation of the corresponding second infrared touch control device of touch-control is main equipment pattern.Meanwhile, same according to receiving
The signal scanning direction of the step the second infrared touch control device indicated by signal, determines the signal scanning direction of himself.
Wherein, the first infrared tactile equipment can obtain indicated by synchronizing signal according to the level state of synchronizing signal
The signal scanning direction of two infrared touch control devices.Such as, the first infrared touch control device receives from the second infrared touch control device
High level synchronizing signal, be appreciated that the second infrared touch control device is to the infrared tube of transverse axis in touch frame by this signal
Carrying out signal scanning, for preventing the signal disturbing between two equipment, then the first infrared touch control device will control its signal and sweeps
Scanning circuit carries out signal scanning to the infrared tube of the longitudinal axis in touch frame, and so, the signal scanning direction of two equipment is orthogonal
, and then the infrared signal that the infrared receiving tube in two equipment occurs all without the infrared transmitting tube receiving the other side.
S130: the first infrared touch control device is according to the signal scanning direction of the infrared touch control device of first determined, to
Infrared tube in one infrared touch control device carries out signal scanning.
For ensureing the synchronicity on two device scan circuit times, in the present embodiment, can the first infrared touch control device
The signal scanning that the infrared tube in touch frame is carried out one week by its scanning circuit can be controlled.At the same time it can also be often performed one
The signal scanning in week, then carry out arranging the scanning circuit time synchronized in two equipment, two equipment so can be prevented at letter
Number scanning during because by the reasons such as external interference, the problem causing the scanning circuit time irreversibility of two equipment.
The signal scanning method that the embodiment of the present invention provides, indicates infrared touch control device signal scanning to enter by being provided for
The synchronizing signal of journey, when an infrared touch control device receives after the synchronizing signal of another infrared touch control device, then enters
Entering from equipment mode of operation, concrete, first, this equipment obtains the ongoing letter of another touch control device according to this synchronizing signal
Number scanning direction, then, according to the signal scanning direction of another touch control device, according to the signal scanning side with another touch control device
To different directions, the infrared tube in its equipment is carried out signal scanning.Owing to, in two equipment work process, two equipment are pressed
According to different scanning directions, the infrared tube in equipment of itself is carried out signal scanning, therefore can avoid between two equipment
Signal disturbing, improves the accuracy that user touches location.
Wherein, in a kind of detailed description of the invention of the embodiment of the present invention, determine the Working mould of two infrared touch control devices
Formula is main equipment pattern or from the method for equipment mode, can be by arbitration mode, and i.e. two equipment scan mould in normal signal
Work under formula, when one of them equipment has touch control operation, then by the signal transmission interface of its MCU to another equipment
Signal receiving interface sends synchronizing signal, simultaneously enters main equipment pattern, and the infrared touch control device receiving this synchronizing signal enters
Enter from equipment mode, two equipment first receive synchronizing signal for from equipment.
It is, of course, also possible to define master-slave equipment by artificial mode, such as, main equipment is defined by physical button mode
With from equipment time, concrete, can increase on each infrared touch control device physical button definition three kinds of mode of operations, including just
Norm formula, main equipment pattern, from equipment mode.Wherein, in the normal mode, infrared touch control device is carried out according to by normal mode
Signal scanning；Under main equipment pattern, infrared touch control device carries out signal scanning according to self scan procedure, passes through MCU simultaneously
Signal transmission interface send synchronizing signal to from equipment；Under equipment mode, infrared touch control device is connect by the signal of MCU
Receive interface and carry out the synchronizing signal of autonomous device, according to the signal scanning direction indicated by this synchronizing signal, determine self
Signal scanning direction, and do not send synchronizing signal at the signal transmission interface of its MCU under equipment mode.
Arbitration mode based on above-mentioned master-slave equipment, the embodiment of the present invention additionally provides alternative infrared touch control device
Signal scanning method.
The flow chart of the signal scanning method of the infrared touch control device of another kind that Fig. 5 provides for the embodiment of the present invention, the party
Method can be applicable in the system in Fig. 2, mainly includes following process step:
S210: the first infrared touch control device under default scan pattern, infrared in described first infrared touch control device
Pipe carries out signal scanning.
Owing to, in the touch frame in infrared touch control device, the number of the infrared lamp in two adjacent side is the most inconsistent
, or the size of the touch frame in two equipment is also likely to be inconsistent, and the sweep time of each touch frame also differs
Cause, different in order to ensure the signal scanning direction of two equipment, need to ensure that two equipment are to each side in its touch frame
The signal scanning time on limit is consistent, and the present embodiment realizes the demand by the quantity of virtual infrared lamp.Concrete,
Before step S210, after two infrared touch control devices set up communication connection relation, execution following step:
1) the first infrared touch control device corresponding infrared in each signal scanning direction in obtaining the first infrared touch control device respectively
The number of the infrared tube that each signal scanning direction is corresponding in the number of pipe and the second infrared touch control device.
2) the first infrared touch control device is according to infrared tube corresponding to signal scanning direction each in the first infrared touch control device
In number and the second infrared touch control device, the number of the infrared tube that each signal scanning direction is corresponding, obtains the first infrared touch-control
Equipment and the second infrared touch control device have the signal scanning direction of most number infrared tube.
3) the first infrared touch control device is according to infrared tube number corresponding to the signal scanning direction with most quantity infrared tube
Mesh H, sets up the infrared tube of each signal scanning direction correspondence scanning to the first infrared touch control device and the second infrared touch control device
Total number mesh is the dynamic scan pattern of H.
I.e. under dynamic scan pattern, by complete for scan lamp number corresponding for each signal scanning direction of infrared touch control device
Portion is modeled as H.Such as, during signal scanning, when after X the infrared tube scanned through in transverse axis, the completeer H-X of virtual scan
Individual infrared tube, the most just carries out the infrared tube signal scanning to the longitudinal axis, time equally to the infrared tube signal scanning of the longitudinal axis, is also first
Scan through complete H-Y the infrared tube of Y infrared tube in the longitudinal axis, again virtual scan.
Utilize above-mentioned signal scanning mode, when two infrared touch control devices respectively enter main equipment pattern and from equipment mode
After, just according to the scan mode of above-mentioned dynamic scan pattern, the infrared tube in touch frame carried out signal scanning, and then can expire
The requirement that the signal scanning direction of two equipment is different enough.
Further, the default scan pattern in the embodiment of the present invention can be above-mentioned dynamic scan pattern, it is also possible to be
Each signal scanning direction is carried out to the normal scan of signal scanning according to the infrared lamp number that the touch frame of the direction is actual
Pattern.
S220: the first infrared touch control device judges whether to receive the synchronizing signal from the second infrared touch control device, its
In, this synchronizing signal is for the signal scanning direction of instruction the second infrared touch control device.
When receiving the synchronizing signal from the second infrared touch control device, then enter from equipment mode, and perform step
S230；When not receiving the synchronizing signal from the second infrared touch control device, then perform step S210.
S230: the first infrared touch control device, according to the signal scanning direction indicated by synchronizing signal, determines that first is infrared tactile
The signal scanning direction of control equipment, wherein, the signal that the signal scanning direction of the first infrared touch control device indicates with synchronizing signal
Scanning direction is different.
S240: the first infrared touch control device is according to the signal scanning direction of the infrared touch control device of first determined, to
Infrared tube in one infrared touch control device carries out signal scanning.
The data analyzed the second concrete scan procedure of infrared touch control device to reduce by the first infrared touch control device process
Amount, the embodiment of the present invention additionally provides a kind of first infrared touch control device and enters the concrete signal scanning side after equipment mode
Method, concrete comprises the steps:
1) the first infrared touch control device is according to the signal scanning direction of the infrared touch control device of first determined, enters the
Infrared tube in one infrared touch control device carries out the waiting state of signal scanning.
Such as, the synchronizing signal that the first infrared touch control device receives is high level signal, this high level signal instruction the
Two infrared touch control devices are carrying out the signal scanning of the infrared tube of transverse axis in touch frame, then the first infrared touch control device controls it
The state of first infrared tube of transverse axis in its touch frame to be scanned such as scanning circuit entrance.
2) the first infrared touch control device judges whether synchronizing signal produces level saltus step.
When the synchronizing signal received is high level signal, then judge whether this synchronizing signal produces trailing edge；When connecing
When the synchronizing signal received is low level signal, then judge whether this synchronizing signal produces rising edge.
3) when synchronizing signal produces level saltus step, then start the infrared tube in the first infrared touch control device is carried out signal
Scanning.
When synchronizing signal produces level saltus step, then can control the scanning circuit in the first infrared touch control device built
Under the dynamic scan pattern stood, from the beginning of first infrared tube of above-mentioned transverse axis, infrared in the first infrared touch control device
Pipe carries out the signal scanning in a cycle.
Utilizing above-mentioned scan mode, the first infrared touch control device is without analyzing the second infrared touch control device at its signal scanning
The particular location of the infrared lamp that direction is being scanned, not only reduces data processing amount, also improves the accuracy that data process.
S250: the first infrared touch control device judges to carry out the infrared tube in the first infrared touch control device the mistake of signal scanning
Cheng Zhong, whether the level state of synchronizing signal changes.
When the level state of synchronizing signal does not changes, then explanation the second infrared touch control device do not has touch-control
Operation, then immediately exit from from equipment mode, and perform step S260；When the level state of synchronizing signal changes, then say
Bright second infrared touch control device still there is touch control operation, then continues executing with step S230.
S260: judge whether have touch operation in the first infrared touch control device.
Concrete, can be changed by the amplitude of the infrared signal that the infrared receiving tube in its touch frame receives,
Determine whether touch operation.
When the first infrared touch control device has touch operation, then enter main equipment pattern, and perform step S270.When
In one infrared touch control device during no touch operation, then two infrared touch control devices of explanation all do not have touch control operation, then perform step
Rapid S210.
S270: send synchronizing signal to the second infrared touch control device.
After second infrared touch control device receives this synchronizing signal, then enter from equipment mode, and according to from equipment mode
Under signal scanning method the infrared tube in its touch frame is carried out signal scanning.
At the first infrared touch control device after the second infrared touch control device sends synchronizing signal, the present embodiment additionally provides
First infrared touch control device enters the signal scanning method after main equipment pattern.
Fig. 6 is in the stream of signal scanning method during main equipment pattern for the infrared touch control device that the embodiment of the present invention provides
Cheng Tu, the method can be applicable in the system in Fig. 2, mainly includes following process step:
S310: the first infrared touch control device sends synchronizing signal to the second infrared touch control device.
MCU in first touch control device is connect by its signal transmission interface signal of MCU in the second infrared touch control device
Receive interface and send synchronizing signal.
Infrared tube in first infrared touch control device, under dynamic scan pattern, is entered by the S320: the first infrared touch control device
Row signal scanning.
S330: according to the result that the infrared tube in the first infrared touch control device is carried out signal scanning, it is judged that first is infrared
Whether touch control device there is touch operation.
When the first infrared touch control device does not has touch operation, then exit main equipment pattern, and perform step S340；When
When first infrared touch control device does not has touch operation, then continue executing with step S320.
S340: under default scan pattern, carries out signal scanning to the infrared tube in the first infrared touch control device.
The arbitration mode that the present invention implements to provide determines the main equipment of two infrared touch control devices and from equipment, can make two
The signal scanning process of individual equipment is the most flexible.Time in two equipment all without touch control operation, will under default scan pattern,
Infrared tube in respective equipment is carried out signal scanning, saves the time of the signal scanning in a cycle.
Fig. 7 is the structural representation of the signal scanning device of a kind of infrared touch control device that the embodiment of the present invention provides.As
Shown in Fig. 7, this device 700 comprises the steps that at least one processor (processor) 701, internal memory (memory) 702, ancillary equipment
Interface (peripheral interface) 703, input/output subsystem (I/O subsystem) 704, power circuit 705 and
Communication line 706.
In the figure 7, arrow represents the communication between the element that can carry out computer system and data transmission, and it can profit
By high-speed serial bus (high-speed serial bus), parallel bus (parallel bus), storage area network
(SAN, Storage Area Network) and/or other suitable communication technologys and realize.
Internal memory 702 can include operating system 712 and signal scanning routine 722.Such as, internal memory 702 can include the most random
Access memorizer (high-speed random access memory), disk, static RAM (SPAM), move
State random access memory (DRAM), read only memory (ROM), flash memory or non-voltile memory.Internal memory 702 can store for grasping
Make system 712 and the program coding of signal scanning routine 722, say, that needed for the action of signal scanning device 700 can be included
Software module, instruction set architecture or the multiple data outside it.Now, processor 701 or peripheral interface 706 etc. other
Controller can be controlled by processor 701 with the access of internal memory 702.
Peripheral interface 703 can be by the input of signal scanning device 700 and/or output ancillary equipment and processor 701
Combine with internal memory 702.Further, multiple input/output ancillary equipment can be connect by input/output subsystem 704 with ancillary equipment
Mouth 706 combines.Such as, input/output subsystem 704 can include display, keyboard, mouse, printer or use as required
In the controller that the ancillary equipment such as photographing unit, various sensors is combined with peripheral interface 703.Concrete, input/
Output subsystem 704 includes for infrared touch-control radiating circuit and infrared touch-control are received circuit and peripheral interface 703
The controller combined.
Power circuit 705 can completely or partially supply electric power to the component of terminal unit.Such as, power circuit
705 can include such as electric power management system, battery or the exchange more than one power supply of (AC), charging system, power failure monitor
Circuit (power failure detection circuit), power converter or inverter, power state marker character or be used for
Other components any that electric power generates, manages, distributes.
Communication line 706 can utilize at least one interface to communicate with other computer systems.
Processor 701 is stored in the software module in internal memory 702 by execution or instruction set architecture can perform signal scanning
The several functions of device 700 and process data.It is to say, processor 701 is by performing basic arithmetic, logic and calculating
The input/output calculation of machine system, may be configured as processing the order of computer program.
The method that processor 701 is structured to perform the signal scanning in above-described embodiment.
The embodiment of Fig. 7 is only an example of the signal scanning device 700 of terminal unit, and signal scanning device 700 can
There is following structure or configuration: omit the partial circuit element shown in Fig. 7, or be further equipped with not shown in Fig. 7 adding
Component, or combine plural component.Such as, for mobile environment communication terminal computer system except
Outside component shown in Fig. 7, also can farther include sensor etc., and may also comprise for many in communication line 706
Plant the circuit of the RF communication of communication mode (WiFi, 6G, LTE, Bluetooth, NFC, Zigbee etc.).Can be included in signal scanning
Component in device 700 can be by including the hard of integrated circuit that more than one signal processing or application program are becomed privileged
Part, software or hardware and software a combination of both and realize.
The signal scanning device 700 of above-mentioned composition receives the synchronizing signal from another infrared touch control device, and according to this
Signal scanning direction indicated by synchronizing signal, determines the signal scanning direction of its equipment, then according to its scanning determined
The signal scanning direction of circuit, according to the direction different from the signal scanning direction of another touch control device, red in its equipment
Outer tube carries out signal scanning, such that it is able to avoid the signal disturbing between two equipment, improves the standard that user touches location
Really property.
Device based on the signal scanning shown in Fig. 7, embodiments provides a kind of touch control device, and this equipment includes
The device 800 of the signal scanning shown in Fig. 8, the wherein MCU shown in device 700 corresponding diagram 2 of the signal scanning shown in Fig. 8,
This equipment also includes further: scanning circuit, touch frame and sample circuit 806；Wherein, scanning circuit includes launching scanning electricity
Road 802 and reception scanning circuit 802, touch frame includes infrared transmitting tube 804 and infrared receiving tube 805.Under this implementation,
Other parts structure in Fig. 8 is identical with Fig. 2, repeats no more.
For convenience of description, it is divided into various unit to be respectively described with function when describing apparatus above.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during invention.
Each embodiment in this specification all uses the mode gone forward one by one to describe, identical similar portion between each embodiment
Dividing and see mutually, what each embodiment stressed is the difference with other embodiments.Especially for device or
For system embodiment, owing to it is substantially similar to embodiment of the method, so describing fairly simple, relevant part sees method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematically, wherein as separating
The unit of part description can be or may not be physically separate, and the parts shown as unit can be or also
Can not be physical location, i.e. may be located at a place, or can also be distributed on multiple NE.Can be according to reality
The needing of border selects some or all of module therein to realize the purpose of the present embodiment scheme.Those of ordinary skill in the art
In the case of not paying creative work, i.e. it is appreciated that and implements.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (10)
1. the signal scanning method of an infrared touch control device, it is characterised in that including:
First infrared touch control device receives the synchronizing signal from the second infrared touch control device, and described synchronizing signal is used for indicating institute
State the signal scanning direction of the second infrared touch control device；
Described first infrared touch control device, according to the signal scanning direction indicated by described synchronizing signal, determines described first infrared
The signal scanning direction of touch control device, wherein, the signal scanning direction of described first infrared touch control device and described synchronizing signal
The signal scanning direction of instruction is different；
Described first infrared touch control device is according to the signal scanning direction of the described first infrared touch control device determined, to described
Infrared tube in first infrared touch control device carries out signal scanning.
Method the most according to claim 1, it is characterised in that described first infrared touch control device is according to described synchronizing signal
Indicated signal scanning direction, including:
Described first infrared tactile equipment is according to the level state of described synchronizing signal, and obtain indicated by described synchronizing signal is described
The signal scanning direction of the second infrared touch control device.
Method the most according to claim 2, it is characterised in that described first infrared touch control device is according to described in determining
The signal scanning direction of the first infrared touch control device, carries out signal scanning to the infrared tube in described first infrared touch control device,
Including:
Described first infrared touch control device is according to the signal scanning direction of the described first infrared touch control device determined, it is right to enter
Infrared tube in described first infrared touch control device carries out the waiting state of signal scanning；
Described first infrared touch control device judges whether described synchronizing signal produces level saltus step；
When described synchronizing signal produces level saltus step, then start the infrared tube in described first infrared touch control device is carried out letter
Number scanning.
Method the most according to claim 1, it is characterised in that the first infrared touch control device receives from the second infrared touch-control
Before the synchronizing signal of equipment, described method also includes:
Described first infrared touch control device obtains corresponding red, each signal scanning direction in described first infrared touch control device respectively
The number of the infrared tube that each signal scanning direction is corresponding in the number of outer tube and described second infrared touch control device；
Described first infrared touch control device is according to infrared tube corresponding to each signal scanning direction in described first infrared touch control device
Number and described second infrared touch control device in the number of infrared tube corresponding to each signal scanning direction, obtain described
One infrared touch control device and described second infrared touch control device have the signal scanning direction of most number infrared tube；
Described first infrared touch control device according to described in there is the infrared tube that the signal scanning direction of most quantity infrared tube is corresponding
Number H, sets up and sweeps described first infrared touch control device is corresponding with each signal scanning direction of described second infrared touch control device
The infrared tube total number mesh retouched is the dynamic scan pattern of H.
Method the most according to claim 4, it is characterised in that the infrared tube in described first infrared touch control device is carried out
Signal scanning, including:
Control the scanning circuit in described first infrared touch control device under dynamic scan pattern, described first infrared touch-control is set
Infrared tube in Bei carries out signal scanning.
Method the most according to claim 1, it is characterised in that the infrared tube in described first infrared touch control device is carried out
After signal scanning, described method also includes:
Described first infrared touch control device judges to carry out the infrared tube in described first infrared touch control device the mistake of signal scanning
Cheng Zhong, whether the level state of described synchronizing signal changes；
When the level state of described synchronizing signal does not changes, then judge whether described first infrared touch control device has tactile
Touch operation；
When described first infrared touch control device has touch operation, then send to described second infrared touch control device and synchronize letter
Number；
When described first infrared touch control device does not has touch operation, then under default scan pattern, to described first infrared
Infrared tube in touch control device carries out signal scanning.
Method the most according to claim 6, it is characterised in that to described second infrared touch control device send synchronizing signal it
After, described method also includes:
Infrared tube in described first infrared touch control device, under dynamic scan pattern, is carried out by described first infrared touch control device
Signal scanning；
According to the result that the infrared tube in described first infrared touch control device is carried out signal scanning, it is judged that described first infrared touch
Whether control equipment there is touch operation；
When described first infrared touch control device does not has touch operation, then under default scan pattern, to described first infrared
Infrared tube in touch control device carries out signal scanning.
Method the most according to claim 1, it is characterised in that the infrared tube in described first infrared touch control device is carried out
Before signal scanning, described method also includes:
When the scanning circuit of described first infrared touch control device is carried out with the scanning circuit in described second infrared touch control device
Between synchronize arrange.
9. the signal scanning device of an infrared touch control device, it is characterised in that including: processor, memorizer and communication interface,
Described processor, described memorizer are connected with described communication interface communication bus；
Described communication interface, is used for receiving and sending signal；
Described memorizer, is used for storing program code；
Described processor, for reading the program code of storage in described memorizer, and performs as arbitrary in claim 1 to 6
Method described in Xiang.
10. a touch control device, it is characterised in that include device as claimed in claim 9, also include: infrared touch frame；
Described device is connected with described infrared touch frame；
Being additionally provided with two communication interfaces on described device, a communication interface is used for sending synchronizing signal, another communication interface
For receiving synchronizing signal.
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| CN201610824469.6A CN106325606B (en) | 2016-09-14 | 2016-09-14 | Signal scanning method, device and the touch control device of infrared touch control device |
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| CN201610824469.6A CN106325606B (en) | 2016-09-14 | 2016-09-14 | Signal scanning method, device and the touch control device of infrared touch control device |
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| CN111949166A (en) * | 2020-08-10 | 2020-11-17 | 青岛海信商用显示股份有限公司 | Infrared touch large screen control method, infrared touch large screen and control equipment |
| CN116483224A (en) * | 2022-01-14 | 2023-07-25 | 广州众远智慧科技有限公司 | Control method of infrared touch device and infrared touch system |
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| Publication number | Publication date |
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| CN106325606B (en) | 2019-05-28 |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Video Technology Co., Ltd Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: HISENSE ELECTRIC Co.,Ltd. |