CN104898898B - A kind of method for extending infrared touch frame service life - Google Patents
A kind of method for extending infrared touch frame service life Download PDFInfo
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- CN104898898B CN104898898B CN201510315937.2A CN201510315937A CN104898898B CN 104898898 B CN104898898 B CN 104898898B CN 201510315937 A CN201510315937 A CN 201510315937A CN 104898898 B CN104898898 B CN 104898898B
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Abstract
The invention discloses a kind of method and system for extending infrared touch frame service life.It includes：Touch-screen is recorded to stop touching duration；If the time reaches the default time cycle, infrared touch frame is entered state of directly sweeping by normal scan state, and the normal scan state includes directly sweeping pattern and tiltedly sweeps pattern.By changing the scan pattern of infrared touch frame under improper scanning mode, its working loss is reduced, so as to extend its service life.
Description
Technical field
The present invention relates to infrared electronic technology field, more particularly to a kind of method for extending infrared touch frame service life and
System.
Background technology
If infrared touch panel is not touched for a long time, but scanning shape when infrared touch frame is also in normal work
State, i.e. infrared transmitting tube, which are constantly in, directly sweeps and tiltedly sweeps working condition alternately, the effective time of infrared transmitting tube
It is not fully utilized so that the loss of infrared touch frame is big, and service life is short.
Chinese patent 200910110480.6 discloses a kind of method of prolonging service life of infrared touch screen, has used one
Individual timer, when unattended touch-screen in a period of time, scanning of the microprocessor control infrared transmitting tube from normal speed
Be transferred to slow scanning state, under slow scanning state respectively driving numbering be odd number and numbering be even number to pipe, to touching
Detected in screen region.The program extends whole infrared touch frame by the sweep span between extending each transmitting tube
The entire scan time, and scanned by odd number and even intervals, the overall extension of scan period and default property are result in, is dropped significantly
The low resolution ratio of infrared touch frame；Simultaneously may be too fast due to user's operation, or touch point is being detected the scanning in region
Outside region, cause touch point None- identified, have a strong impact on the reliability of infrared touch frame in use.
The content of the invention
It is an object of the invention to propose a kind of method and system for extending infrared touch frame service life, stop in touch-screen
When only touch duration reaches the default time cycle, the scanning mode of infrared touch frame is added by the directly pattern of sweeping tiltedly sweeps pattern
Enter and only directly sweep pattern, by changing the scan pattern of infrared touch frame under improper scanning mode, reduce its work damage
Consumption, so as to extend its service life.
To use following technical scheme up to this purpose, the present invention：
On the one hand, the present invention proposes a kind of method for extending infrared touch frame service life, including：
Touch-screen is recorded to stop touching duration；
If the time reaches the default time cycle, infrared touch frame is entered by normal scan state directly sweeps state, institute
Stating normal scan state includes directly sweeping pattern and tiltedly sweeps pattern.
Wherein, the infrared touch frame includes infrared transmitting tube and infrared receiving tube, and described straight to sweep pattern be infrared emission
The infrared receiving tube transmission signal of its face of Guan Xiangyu；It is described tiltedly sweep pattern for infrared transmitting tube in certain angular range to
With its tiltedly to multiple infrared receiving tube transmission signals.
Wherein, after the infrared touch frame sweeps state by the entrance of normal scan state is straight, in addition to infrared emission is reduced
The power of pipe, it is specially：The power of the infrared transmitting tube is reduced to 3/4 of power under normal scan state.
Wherein, in the conducting under the straight ON time for sweeping infrared transmitting tube under pattern is the normal scan state
Between 1/3, the work period of the infrared transmitting tube is constant.
Wherein, before the record touch-screen stops touching duration, in addition to：Touch-screen is detected either with or without touch
Point；
If without touch point, record touch-screen stops touching duration；If there is touch point, the infrared touch frame is protected
Normal scan state is held, new record touch-screen of laying equal stress on stops touching duration.
Wherein, the record touch-screen stops after touching duration, in addition to：Judge whether the time reaches
The default time cycle；If the time is not up to the default time cycle, the infrared touch frame keeps normal scan state.
On the other hand, the present invention proposes a kind of system for extending infrared touch frame service life, including：
Timing unit, stop touching duration for recording touch-screen；
Scan pattern control unit, if reaching the default time cycle for the time, infrared touch frame is by normally sweeping
Retouch state and sweep state into straight, the normal scan state includes directly sweeping pattern and tiltedly sweeps pattern.
Wherein, in addition to：
Directly sweep unit, for start the infrared touch frame enter it is straight sweep pattern, it is described that straight to sweep pattern be infrared transmitting tube
To the infrared receiving tube transmission signal with its face；
Unit tiltedly is swept, enters for starting the infrared touch frame and tiltedly sweeps pattern, described tiltedly to sweep pattern be infrared transmitting tube
In certain angular range to its tiltedly to multiple infrared receiving tube transmission signals.
Wherein, in addition to：
Drive control unit, for it is described it is straight sweep control under pattern the ON time of the infrared transmitting tube for it is described just
Often 1/3 of the ON time under scanning mode, the work period of the infrared transmitting tube is constant.
Power control unit, for reducing the power of infrared transmitting tube, it is specially：The power of the infrared transmitting tube is dropped
It is low to arrive 3/4 of power under normal scan state.
Wherein, in addition to：
Detection unit, for detecting touch-screen either with or without touch point；
If without touch point, record touch-screen stops touching duration；If there is touch point, the infrared touch frame is protected
Normal scan state is held, new record touch-screen of laying equal stress on stops touching duration.
Judging unit, for judging whether the time reaches the default time cycle；
If the time reaches the default time cycle, infrared touch frame, which enters, directly sweeps state；If the time is not up to
Default time cycle, the infrared touch frame keep normal scan state.
The beneficial effect that technical scheme provided by the invention is brought：
Record touch-screen to stop touching duration, if the time reaches default time cycle, infrared touch frame
Enter state of directly sweeping by normal scan state, the normal scan state includes directly sweeping pattern and tiltedly sweeps pattern；Stop in touch-screen
When only touch duration reaches the default time cycle, infrared touch frame adds the oblique pattern of sweeping to enter only by the directly pattern of sweeping
Directly sweep pattern；Technical scheme provided by the invention is by changing the scan pattern of infrared touch frame under improper scanning mode, drop
Its low working loss, so as to extend its service life.
Brief description of the drawings
Fig. 1 is the method flow diagram of one embodiment of the method for the invention that increases the service life.
Fig. 2 is the method flow diagram of second embodiment of the method for the invention that increases the service life.
Fig. 3 is the system schematic of one embodiment of the system of the invention that increases the service life.
Fig. 4 is the system schematic of second embodiment of the system of the invention that increases the service life.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Embodiment one
Reference picture 1, Fig. 1 are the method flow diagrams of one embodiment of the method for the invention that increases the service life.
In the first embodiment, the method for the extension infrared touch frame service life includes：
S101, record touch-screen stop touching duration；
S102, if the time reaches the default time cycle, infrared touch frame is entered by normal scan state directly sweeps shape
State, the normal scan state include directly sweeping pattern and tiltedly sweep pattern.
Start timing when touch-screen stops and touched, it is infrared when timing time reaches the default time cycle
Touching box changes scanning mode, is added by the straight pattern of sweeping before and tiltedly sweeps Mode change only directly to sweep pattern.Wherein, pattern is directly swept
For infrared transmitting tube to the infrared receiving tube transmission signal with its face；Tiltedly sweep pattern for infrared transmitting tube in certain angle model
Enclose it is introversive with its tiltedly to multiple infrared receiving tube transmission signals.
Infrared touch frame is under normal scan state, i.e., directly the pattern of sweeping adds and tiltedly swept under pattern, and single infrared transmitting tube is along axle
Line direction carries out first directly sweeping the switched scan for retreading and sweeping successively, when directly being swept, with infrared transmitting tube in axis direction face
Infrared receiving tube open, and receive the infrared transmitting tube transmitting signal；When tiltedly being swept, with infrared transmitting tube certain
The sector region of angle tiltedly to multiple infrared receiving tubes open successively, and receive the infrared transmitting tube transmitting signal, directly sweep
Pattern is identical with the ON time for tiltedly sweeping each infrared receiving tube under pattern.After pattern closing is tiltedly swept, infrared transmitting tube
ON time is significantly reduced, and its working loss is reduced, i.e. the overall work loss of infrared touch frame is reduced.
To sum up, the method for the extension infrared touch frame service life of the embodiment of the present invention, record touch-screen stop touch and held
The continuous time, if the time reaches the default time cycle, infrared touch frame is entered by normal scan state directly sweeps state, institute
Stating normal scan state includes directly sweeping pattern and tiltedly sweeps pattern；Stop touch duration in touch-screen and reach the default time
During the cycle, that closes infrared touch frame tiltedly sweeps pattern, only carries out the straight touch detection for sweeping pattern；By changing improper scanning shape
The scan pattern of infrared touch frame under state, reduces the working loss of infrared touch frame, so as to extend its service life.
Reference picture 2, Fig. 2 are the method flow diagrams of second embodiment of the method for the invention that increases the service life.
In a second embodiment, the method for the extension infrared touch frame service life includes：
S101, electrification reset；
S102, infrared touch frame enter normal scan state, and the normal scan state includes directly sweeping pattern and tiltedly sweeps mould
Formula；
Enter normal scan state after a reset to electricity, the infrared touch frame on infrared touch frame, i.e., directly the pattern of sweeping adds
Tiltedly sweep the scanning mode of pattern.
S103, detection touch-screen is either with or without touch point, if continuing step S104 without touch point；If there is touch point, continue
Step S105；
S104, record touch-screen stop touching duration；
S105, infrared touch frame keep normal scan state, and new record touch-screen of laying equal stress on stops touching duration；
Detection touch-screen, if touch-screen has touch point, keeps normal scan state, detected tactile either with or without being touched in real time
Touch position a little and export its coordinate, new record touch-screen of laying equal stress on stops by touch duration；If remember without touch point
Record touches duration after stopping.
S106, judges whether the time reaches the default time cycle, if reaching the default time cycle continues step
S107；If the not up to default time cycle continues step S105；
S107, infrared touch frame is entered by normal scan state directly sweeps state；
Record touches duration after stopping, and judges whether the time reaches the default time cycle, is reaching
After the default time cycle, that closes infrared touch frame tiltedly sweeps pattern, into the scanning mode for only directly sweeping pattern.
After closing tiltedly sweeps pattern, the work period of infrared transmitting tube is constant, and due to being only left directly to sweep pattern, it is turned on
Time is changed into 1/3 of ON time under normal scan state, and the ON time of reduction is tiltedly to sweep leading for infrared transmitting tube under pattern
Lead to the time, i.e. ON time under 2/3 normal scan state.
S108, the straight power for sweeping infrared transmitting tube under state is reduced to 3/4 of power under normal scan state.
Infrared transmitting tube forms illuminator by infraluminescence diode square, can be by changing the side of its input current
Formula, change the power of infrared transmitting tube.
To sum up, the method for the extension infrared touch frame service life of the embodiment of the present invention, record touching box stop touch and held
The continuous time, if the time reaches the default time cycle, the scanning mode of infrared touch frame is added by the directly pattern of sweeping and tiltedly sweeps mould
Formula switches to and only directly sweeps pattern, while reduces the power of infrared transmitting tube；Stop touch duration in touch-screen to reach
During the default time cycle, that closes infrared touch frame tiltedly sweeps pattern, only carries out directly sweeping the touch detection of pattern, while reduce red
The power of outer transmitting tube；By changing the scan pattern of infrared touch frame under improper scanning mode, and reduce infrared transmitting tube
Power mode, reduce infrared touch frame working loss, so as to extend its service life.
Embodiment three
Reference picture 3, Fig. 3 are the system schematics of one embodiment of the system of the invention that increases the service life.
In the third embodiment, the system of the extension infrared touch frame service life includes：
Timing unit 101, stop touching duration for recording touch-screen；
Scan pattern control unit 102, if reaching the default time cycle for the time, infrared touch frame is by normal
Scanning mode, which enters, directly sweeps state, and the normal scan state includes directly sweeping pattern and tiltedly sweeps pattern.
Record touch-screen and stop scanning duration, after the time reaches the default time cycle, scan pattern
Scan pattern is directly to sweep state by normal scan State Transferring by control unit 102, is specially closed and is tiltedly swept pattern.
To sum up, the system of the extension infrared touch frame service life of the embodiment of the present invention, record touch-screen stop touch and held
The continuous time, if the time reaches the default time cycle, infrared touch frame adds the oblique pattern of sweeping to enter only by the directly pattern of sweeping
Have and directly sweep pattern；When touch-screen stopping touches duration and reaches the default time cycle, the oblique of infrared touch frame is closed
Pattern is swept, only carries out the straight touch detection for sweeping pattern, by changing the scan pattern of infrared touch frame under improper scanning mode,
The working loss of infrared touch frame is reduced, so as to extend its service life.
Reference picture 4, Fig. 4 are the system schematics of second embodiment of the system of the invention that increases the service life.
On the basis of 3rd embodiment, the system of the extension infrared touch frame service life also includes：
Directly sweep unit 103, for start the infrared touch frame enter it is straight sweep state, it is described that straight to sweep pattern be infrared emission
The infrared receiving tube transmission signal of its face of Guan Xiangyu；
Normal scan state includes directly sweeping pattern and tiltedly sweeps pattern, respectively by directly sweeping unit 103 and tiltedly sweeping unit to control,
Straight unit of sweeping is responsible for controlling infrared receiving tube to receive the signal sent in the infrared transmitting tube of change in coordinate axis direction face with it.
Drive control unit 104, for straight sweeping that the ON time of the infrared transmitting tube is controlled under pattern is institute described
1/3 of the ON time under normal scan state is stated, the work period of the infrared transmitting tube is constant.
It is ON time under the normal scan state to close and tiltedly sweep the ON time of infrared transmitting tube after pattern
1/3, the work period of the infrared transmitting tube is constant, and drive control unit 104, which provides, directly sweeps infrared hair under pattern corresponding to this
Penetrate the pulse drive signal of pipe.
Power control unit 105, for reducing the power of infrared transmitting tube, it is specially：By the work(of the infrared transmitting tube
Rate is reduced to 3/4 of power under normal scan state.The power of infrared transmitting tube is reduced, directly reduces its working loss.
Detection unit 106, for detecting touch-screen either with or without touch point；
If without touch point, record touch-screen stops touching duration；If there is touch point, the infrared touch frame is protected
Normal scan state is held, detects the position of the touch point, and its coordinate is exported, new record touch-screen of laying equal stress on stops touch and held
The continuous time.
Judging unit 107, for judging whether the time reaches the default time cycle；
If the time reaches the default time cycle, infrared touch frame, which enters, directly sweeps state；If the time is not up to
Default time cycle, the infrared touch frame keep normal scan state.
To sum up, the system of the extension infrared touch frame service life of the embodiment of the present invention, record touching box stop touch and held
The continuous time, if the time reaches the default time cycle, the scanning mode of infrared touch frame is added by the directly pattern of sweeping and tiltedly sweeps mould
Formula switches to and only directly sweeps pattern, while reduces the power of infrared transmitting tube；Stop touch duration in touch-screen to reach
During the default time cycle, that closes infrared touch frame tiltedly sweeps pattern, only carries out directly sweeping the touch detection of pattern, while reduce red
The power of outer transmitting tube；By changing the scan pattern of infrared touch frame under improper scanning mode, and reduce infrared transmitting tube
Power, reduce infrared touch frame working loss, so as to extend its service life.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (8)
- A kind of 1. method for extending infrared touch frame service life, it is characterised in that including：Touch-screen is recorded to stop touching duration；If the time reaches the default time cycle, infrared touch frame by normal scan state enter it is straight sweep state, it is described just Normal scanning mode includes directly sweeping pattern and tiltedly sweeps pattern；The infrared touch frame includes infrared transmitting tube and infrared receiving tube, it is described it is straight sweep pattern for infrared transmitting tube to it just To infrared receiving tube transmission signal；It is described tiltedly sweep pattern for infrared transmitting tube in certain angular range to its tiltedly to multiple infrared receiving tubes launch Signal.
- 2. according to the method for claim 1, it is characterised in that the infrared touch frame is entered by normal scan state directly to be swept After state, in addition to the power of infrared transmitting tube is reduced, be specially：The straight power for sweeping infrared transmitting tube under state is dropped It is low to arrive 3/4 of power under normal scan state.
- 3. according to the method for claim 1, it is characterised in that it is described it is straight sweep pattern under infrared transmitting tube ON time For 1/3 of the ON time under the normal scan state, the work period of the infrared transmitting tube is constant.
- 4. according to the method for claim 1, it is characterised in that it is described record touch-screen stop touch duration it Before, in addition to：Touch-screen is detected either with or without touch point；If without touch point, record touch-screen stops touching duration；If there is touch point, the infrared touch frame keeps normal scan state, and it is lasting that new record touch-screen of laying equal stress on stops touch Time.
- 5. according to the method for claim 1, it is characterised in that it is described record touch-screen stop touch duration it Afterwards, in addition to：Judge whether the time reaches the default time cycle, if the time is not up to the default time cycle, The infrared touch frame keeps normal scan state.
- A kind of 6. system for extending infrared touch frame service life, it is characterised in that including：Timing unit, stop touching duration for recording touch-screen；Scan pattern control unit, if reaching the default time cycle for the time, infrared touch frame is by normal scan shape State, which enters, directly sweeps state, and the normal scan state includes directly sweeping pattern and tiltedly sweeps pattern；Directly sweep unit, for start the infrared touch frame enter it is straight sweep state, it is described it is straight sweep pattern for infrared transmitting tube to The infrared receiving tube transmission signal of its face；Unit tiltedly is swept, enters for starting the infrared touch frame and tiltedly sweeps pattern, the pattern of tiltedly sweeping is infrared transmitting tube one In fixed angular range to its tiltedly to multiple infrared receiving tube transmission signals.
- 7. system according to claim 6, it is characterised in that also include：Drive control unit, for controlling the ON time of the infrared transmitting tube normally to be swept to be described under pattern in straight sweep 1/3 of the ON time under state is retouched, the work period of the infrared transmitting tube is constant；Power control unit, for reducing the power of infrared transmitting tube, it is specially：The power of the infrared transmitting tube is reduced to The 3/4 of power under normal scan state.
- 8. system according to claim 6, it is characterised in that also include：Detection unit, for detecting touch-screen either with or without touch point；If without touch point, record touch-screen stops touching duration；If there is touch point, the infrared touch frame is kept just Normal scanning mode, new record touch-screen of laying equal stress on stop touching duration；Judging unit, for judging whether the time reaches the default time cycle；If the time reaches the default time cycle, infrared touch frame, which enters, directly sweeps state；If the time is not up to default Time cycle, the infrared touch frame keeps normal scan state.
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Inventor after: He Limin Inventor after: Fang Yongqi Inventor after: He Xiaolong Inventor after: Zhang Zhicheng Inventor after: Zeng Ranran Inventor after: Zeng Fengpin Inventor after: He Guanghong Inventor after: He Li, Fang Yongqi, He Xiaolong, Zhang Zhicheng, Zeng Wei, Ceng Fengpin, He Guanghong, Wei Kaichen Inventor before: He Limin Inventor before: Fang Yongqi Inventor before: He Xiaolong Inventor before: He Limin, Fang Yongqi, He Xiaolong, Zhang Zhicheng |
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Effective date of registration: 20150923 Address after: 518057 Guangdong city of Shenzhen province Nanshan District No. 2 Arts crafts emporium, 5 floor Ke Feng Lu communications Shenzhen electric digital display Co Ltd Applicant after: Shenzhen SCT Optronics Company Ltd. Applicant after: SCT Optronics Company Ltd. Address before: 518057 Guangdong city of Shenzhen province Nanshan District No. 2 Arts crafts emporium, 5 floor Ke Feng Lu communications Shenzhen electric digital display Co Ltd Applicant before: Shenzhen SCT Optronics Company Ltd. |
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