CN1983144A - Linear compensating method of touch-controlling system - Google Patents
Linear compensating method of touch-controlling system Download PDFInfo
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- CN1983144A CN1983144A CN 200510131916 CN200510131916A CN1983144A CN 1983144 A CN1983144 A CN 1983144A CN 200510131916 CN200510131916 CN 200510131916 CN 200510131916 A CN200510131916 A CN 200510131916A CN 1983144 A CN1983144 A CN 1983144A
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Abstract
A linear compensating method of touch control system carries out linear compensation data update to ensure press electric field accuracy of actual operation voltage according to voltage D-value between actual operation voltage and rated operation voltage when actual operation voltage is inputted under environment of touch control system being actually operated after factory rated operation voltage is calibrated.
Description
Technical field
The present invention relates to a kind of linear compensation method of touch-control system, particularly a kind of touch-control system that is used for carries out the linear compensation method of proofreading and correct by the piezoelectric field degree of accuracy when real work voltage is imported.
Background technology
But the technology of contact panel is sub-resistance formula (film is attached on glass, Film onGlass), condenser type, ultrasonic formula, optics (infrared ray) formula etc. roughly.Whole world contact panel market share, accounts for more than 60% for the highest with resistance-type, secondly is 24% capacitance type touch-control panel.Condenser type is used for the high unit price market more than 10.4 cun more, as the information guiding and browsing system of public places such as library, station, ATM (automatic teller machine) etc.Its advantage be waterproof, scratch resistant, penetrability is high and the Applicable temperature scope is big etc.Its shortcoming is that process steps is more, and drive IC and circuit complexity, therefore is unfavorable for being applied in the product of small-medium size aspect cost and technical progress.Resistance-type is mainly used in consumption electronic products, as self-service meal ordering system, PDA(Personal Digital Assistant), electronic dictionary, mobile phone, inventory management make an inventory machine, POS accounting machine, credit card POS signature machine, medical monitoring system etc.Electric resistance touch-control panel also is divided into digital and analog, and analog contact panel technology also can be divided into 4 line formulas, 5 line formulas, 6 line formulas and 8 line formulas etc.The know-why of contact panel is that according to different induction modes, detecting voltage, electric current, sound wave or infrared ray etc. are to measure the coordinate position of touch point when finger or other medium when touching screen.For example, resistance-type is utilized upper and lower interelectrode potential difference (PD), calculates the compression point position to detect the touch point position.
No matter be the contact panel of which kind of type, when being combined into completing of finished product state with glass substrate, all can carry out on the touch-control system by the piezoelectric field correction program, the correction purpose is to define the operating voltage of this touch-control system in predetermined installing operation place and is applicable to the linear correction data table of pushing curve by the piezoelectric field equipotential, and definition mode can be the linear correction data storehouse of preparing out earlier nominal working range voltage.Behind the real work voltage of determining this touch-control system workplace, contrast this linear correction data storehouse, set out the linear correction data table of this touch-control system workplace.
But touch-control system finds that but the linear error degree of touch-control system is quite bad after being installed to the real work occasion and connecting real work voltage, and this type of situation is even more serious when touch screen being installed in open space (especially outdoor).Its main cause is not except being equal to the operating voltage of factory setting by each workplace actual converted electric power and the voltage quasi position that supplies power to touch-control system, and the voltage difference that produces influences beyond its linear degree of accuracy, comprise that also temperature, humidity and external interference source influence voltage quasi position, thereby cause touch-control system to produce degree of accuracy situation on the low side.
Summary of the invention
Fundamental purpose of the present invention is to overcome above-mentioned defective, for avoiding the existence of this defective, the invention provides a kind of touch-control system that is used for when real work voltage is imported, and carries out the linear compensation method of proofreading and correct by the piezoelectric field degree of accuracy.
Linear compensation method according to touch-control system of the present invention comprises: set rated operational voltage, a touch-control system is set in a rated operational voltage; Build and put the substantially linear correction data table, this rated operational voltage is defined as the accurate position of operating voltage of this touch-control system and contrasts to build put out the substantially linear correction data table that meets this rated operational voltage; Input and detecting real work voltage make this touch-control system input real work voltage and detecting obtain the voltage difference of this real work voltage and this rated operational voltage; And computing linearity correction offset, utilize this voltage difference contrast to obtain a linearity correction offset, and this linearity correction offset is reflected on this substantially linear correction data table, the linear correction data of revising this touch-control system thus to be meeting the voltage-operated state of this real work, thereby guarantees its degree of accuracy.
Therefore, the present invention has following advantage, promptly, even rated operational voltage and real work voltage have voltage difference, but carry out the linearity correction compensation by the present invention, can effectively remedy the linear error degree of its voltage quasi position difference, thereby make promoting of touch-control system, to meet user's operational requirements by the piezoelectric field degree of accuracy.In addition, touch-control system of the present invention also can just be allowed to during fabrication at a rated range voltage, by setting operating voltage as the initial linear rectification building-out, thus, benefits the degree of accuracy of touch-control system by piezoelectric field with more helping.
Description of drawings
Fig. 1 is the synoptic diagram of linear compensation method flow process of the present invention.
Fig. 2 illustrates the schematic representation of apparatus of implementing linear compensation method of the present invention.
Fig. 3 is the synoptic diagram of another linear compensation method flow process of the present invention.
Embodiment
About detailed content of the present invention and technical descriptioon, existing accompanying drawings is as follows:
Seeing also shown in Figure 1ly, is the synoptic diagram of linear compensation method flow process of the present invention.As shown in the figure, the present invention is a kind of linear compensation method of touch-control system, and this linear compensation method comprises:
Set rated operational voltage, set a touch-control system for a rated operational voltage, this step is when touch-control system dispatches from the factory, and the voltage quasi position of the working environment of the predetermined installing of contrast touch-control system is realized.
Build and put the substantially linear correction data table, this rated operational voltage is defined as the accurate position of operating voltage of this touch-control system and contrasts to build put out the substantially linear correction data table that meets this rated operational voltage.This substantially linear correction data table is meant the substantially linear correction data table of pushing curve on this touch-control system by the piezoelectric field equipotential.
Input and detecting real work voltage make this touch-control system input real work voltage and detecting obtain the voltage difference of this real work voltage and this rated operational voltage.If the voltage difference of this real work voltage and this rated operational voltage is 0 or in the tolerable error range of setting, then this touch-control system will be pushed curve as the equipotential by piezoelectric field with the existing substantially linear correction data table of setting.If voltage difference is greater than 0 or surpass permissible error amount, then enter next step.
Computing linearity correction offset, utilize this voltage difference contrast to obtain a linearity correction offset, and this linearity correction offset is reflected on this substantially linear correction data table, put substantially linear correction data table step and also can comprise and build the step of putting a voltage difference offset data table last building of the present invention.This step contrasts voltage difference and this voltage difference offset data table, thereby obtains a linear compensation value.This linear compensation value can be fed back after computing and upgrade this substantially linear correction data table, thereby produce new linear correction data table as pushing curve by the equipotential of piezoelectric field, perhaps with this linear compensation value and this substantially linear correction data table simultaneously as pushing the electric pulse field parameter value, and import touch-control system and carry out interacting operation and obtain and newly push curve by the equipotential of piezoelectric field.
Can carry out linear compensation method of the present invention with reference to the device synoptic diagram of Fig. 2.In the drawings, comprise a controller 20 and a detecting voltage device 30, and the device of carrying out this linear compensation method can place this touch-control system 10 inner or connect this touch-control system 10 with external form in order to the device of carrying out this linear compensation method.These detecting voltage device 30 detectings obtain the real work voltage 40 of these touch-control system 10 inputs, and the voltage difference of this real work voltage 40 and rated operational voltage is inputed to this controller 20.This controller 20 is built the substantially linear correction data table of putting in order to store rated operational voltage, and this controller 20 also can build and put voltage difference offset data table, and provides the voltage difference computing with generation linearity correction offset.Compute mode can select for use the new linear correction data table that upgrades this substantially linear correction data table and produce as pushing curve by the equipotential of piezoelectric field, perhaps this linear compensation value and this substantially linear correction data table while is imported touch-control system 10 as pushing the electric pulse field parameter value and is carried out interacting operation and obtain and newly push curve by the equipotential of piezoelectric field.
The linear compensation method of comprehensive the invention described above, touch-control system will be provided behind factory setting, even rated operational voltage and real work voltage have voltage difference, but carry out the linearity correction compensation by the present invention, can effectively remedy the linear error degree of its voltage quasi position difference, thereby make promoting of touch-control system, to meet user's operational requirements by the piezoelectric field degree of accuracy.
Seeing also shown in Figure 3ly, is the synoptic diagram of another linear compensation method flow process of the present invention.As shown in the figure, this linear compensation method comprises:
Set nominal working range voltage, one touch-control system is set in a nominal working range voltage, this step is when touch-control system dispatches from the factory, because each working environment has different voltage quasi positions, has different nominal working range voltage thereby touch-control system definable in designing for manufacturing goes out it by piezoelectric field.
Build and put a linear correction data storehouse, the linearity correction value contrast of this nominal working range voltage and the accurate position of this touch-control system operating voltage is built with contrast put out the linear correction data storehouse that meets this nominal working range voltage.
Operating voltage is set in input, when this touch-control system dispatches from the factory when completing, makes this touch-control system input set operating voltage.Should set operating voltage and put out a substantially linear correction data table should the linear correction data storehouse building.The voltage quasi position of the working environment of the predetermined installing of this setting voltage contrast touch-control system is set, and this substantially linear correction data table is meant the substantially linear correction data table of pushing curve on this touch-control system by the piezoelectric field equipotential.Except the substantially linear correction data table, also can build earlier and put a voltage difference offset data table.
Input and detecting real work voltage make this touch-control system input real work voltage and detecting obtain the voltage difference of this real work voltage and this setting operating voltage.If the voltage difference of this real work voltage and this setting operating voltage is 0 or in the permissible error range of setting, then this touch-control system will be pushed curve as the equipotential by piezoelectric field with the existing substantially linear correction data table of setting.If voltage difference is greater than 0 or surpass the tolerable error amount, then enter next step.
Computing linearity correction offset utilizes this voltage difference contrast to obtain a linearity correction offset.This step obtains a linear compensation value with the contrast of voltage difference and this voltage difference offset data table.This linear compensation value can be fed back this substantially linear correction data table of renewal and produce new linear correction data table as pushing curve by the equipotential of piezoelectric field after computing, perhaps with this linear compensation value and this substantially linear correction data table simultaneously as pushing the electric pulse field parameter value, and import touch-control system and carry out interacting operation and obtain and newly push curve by the equipotential of piezoelectric field.
The process flow diagram of present embodiment can be realized by the device of Fig. 2 equally, and present embodiment is except providing touch-control system behind factory setting, even operating voltage and the real work voltage set have voltage difference, carry out the linearity correction compensation by the present invention, also can effectively remedy the linear error degree of its voltage quasi position difference.Thereby being promoted to by the piezoelectric field degree of accuracy of touch-control system met beyond user's operational requirements, and the touch-control system of present embodiment can just be allowed to during fabrication at a rated range voltage, by setting operating voltage as the initial linear rectification building-out.Thus, benefit the degree of accuracy of touch-control system with more helping by piezoelectric field.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. the linear compensation method of a touch-control system comprises:
Set rated operational voltage, a touch-control system is set in a rated operational voltage;
Build and put the substantially linear correction data table, described rated operational voltage is defined as the accurate position of operating voltage of described touch-control system and contrasts to build put out the substantially linear correction data table that meets described rated operational voltage;
Input and detecting real work voltage make described touch-control system input real work voltage and detecting obtain the voltage difference of described real work voltage and described rated operational voltage; And
Computing linearity correction offset, utilize described voltage difference contrast to obtain a linearity correction offset, and described linearity correction offset is reflected on the described substantially linear correction data table, the linear correction data of revising described touch-control system thus to be meeting the voltage-operated state of described real work, thereby guarantees its degree of accuracy.
2. the linear compensation method of touch-control system according to claim 1 is characterized in that, described building put substantially linear correction data table step and also comprised and build the step of putting a voltage difference offset data table.
3. the linear compensation method of touch-control system according to claim 2 is characterized in that, described voltage difference offset data table is used for feedback and upgrades described substantially linear correction data table.
4. the linear compensation method of touch-control system according to claim 2 is characterized in that, described voltage difference offset data table and described substantially linear correction data table are imported touch-control system simultaneously and realized proofreading and correct to carry out interacting operation.
5. the linear compensation method of touch-control system according to claim 1 is characterized in that, the device that is used to carry out described linear compensation method comprises:
One controller is used to store rated operational voltage and builds the substantially linear correction data table of putting, and provides the voltage difference computing to produce the linearity correction offset; And
One detecting voltage device, detecting are obtained the real work voltage of described touch-control system input, and described real work voltage is inputed to described controller.
6. the linear compensation method of touch-control system according to claim 5 is characterized in that, described controller comprises building puts a voltage difference offset data table.
7. the linear compensation method of touch-control system according to claim 6 is characterized in that, described controller contrasts described voltage difference offset data table with described voltage difference and described substantially linear correction data table is upgraded in computing.
8. the linear compensation method of touch-control system according to claim 6 is characterized in that, described controller contrasts described voltage difference and exports linear correction data after described voltage difference offset data table links the described substantially linear correction data table of computing.
9. the linear compensation method of a touch-control system comprises:
Set nominal working range voltage, a touch-control system is set in a nominal working range voltage;
Build and put a linear correction data storehouse, the linearity correction value contrast of described nominal working range voltage and the accurate position of described touch-control system operating voltage is built with contrast put out the linear correction data storehouse that meets described nominal working range voltage;
Operating voltage is set in input, makes described touch-control system input set operating voltage, the corresponding described linear correction data of described setting operating voltage storehouse is built put out a substantially linear correction data table;
Input and detecting real work voltage make described touch-control system input real work voltage and detecting obtain the voltage difference of described real work voltage and described setting operating voltage; And
Computing linearity correction offset, utilize described voltage difference contrast to obtain a linearity correction offset, and this linearity correction offset is reflected into described substantially linear correction data table, revise the linear correction data of described touch-control system thus and guarantee its degree of accuracy to meet the voltage-operated state of described real work.
10. the linear compensation method of touch-control system according to claim 9 is characterized in that, described building put substantially linear correction data table step and also comprised building and put a voltage difference offset data table.
11. the linear compensation method of touch-control system according to claim 10 is characterized in that, described voltage difference offset data table is used for feedback and upgrades described substantially linear correction data table.
12. the linear compensation method of touch-control system according to claim 10 is characterized in that, described voltage difference offset data table and described substantially linear correction data table are imported touch-control system simultaneously and are carried out interacting operation and realize proofreading and correct.
13. the linear compensation method of touch-control system according to claim 9 is characterized in that, the device that is used to carry out described linear compensation method comprises:
One controller is used to store nominal working range voltage and builds the substantially linear correction data table of putting, and provides the voltage difference computing to produce the linearity correction offset; And
One detecting voltage device, detecting are obtained the real work voltage of described touch-control system input, and described real work voltage is inputed to described controller.
14. the linear compensation method according to the described touch-control system of claim 13 is characterized in that, described controller comprises building puts a voltage difference offset data table.
Described substantially linear correction data table is upgraded in computing 15. the linear compensation method of touch-control system according to claim 14 is characterized in that, described controller contrasts described voltage difference offset data table with described voltage difference.
16. the linear compensation method of touch-control system according to claim 14 is characterized in that, described controller contrasts described voltage difference and exports linear correction data after described voltage difference offset data table links the described substantially linear correction data table of computing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131916 CN1983144A (en) | 2005-12-15 | 2005-12-15 | Linear compensating method of touch-controlling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510131916 CN1983144A (en) | 2005-12-15 | 2005-12-15 | Linear compensating method of touch-controlling system |
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| CN1983144A true CN1983144A (en) | 2007-06-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546232B (en) * | 2008-03-24 | 2011-07-13 | 达诺光电股份有限公司 | Panel voltage active compensation circuit |
| CN101840279B (en) * | 2009-03-18 | 2012-08-22 | 宏碁股份有限公司 | Method for correcting flexible plate |
-
2005
- 2005-12-15 CN CN 200510131916 patent/CN1983144A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546232B (en) * | 2008-03-24 | 2011-07-13 | 达诺光电股份有限公司 | Panel voltage active compensation circuit |
| CN101840279B (en) * | 2009-03-18 | 2012-08-22 | 宏碁股份有限公司 | Method for correcting flexible plate |
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