CN105988041A - Capacitance measuring system and capacitance measuring method - Google Patents
Capacitance measuring system and capacitance measuring method Download PDFInfo
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- CN105988041A CN105988041A CN201510078923.3A CN201510078923A CN105988041A CN 105988041 A CN105988041 A CN 105988041A CN 201510078923 A CN201510078923 A CN 201510078923A CN 105988041 A CN105988041 A CN 105988041A
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- capacitance
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- contact panel
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Abstract
The invention discloses a capacitance measuring system and a capacitance measuring method. The capacitance measuring system comprises a three-dimensional mobile device, a touch control head and a control host, wherein the touch control head is connected with the three-dimensional mobile device; and the control host is electrically connected with the three-dimensional mobile device and a touch control panel. The control host moves the touch control head through controlling the three-dimensional mobile device, the touch control panel is touched according to positions of multiple measurement points arranged in a matrix mode on the whole surface of the touch control panel, and the measured capacitance value when each measurement point on the touch control panel is touched is read. According to the measured capacitance values of the measurement points, the control host generates a color image to express the distribution of the measured capacitance values on the whole surface of the touch control panel.
Description
Technical field
The present invention relates to a kind of contact panel, and particularly to a kind of capacitance measurement being applied to contact panel
System and capacitance measurement method.
Background technology
The application of contact panel (touch panel) widely, such as ATM, point of sales terminal
Machine, industrial control system etc..In recent years, along with portable type electronic product (such as smart mobile phone and flat board
Computer) universal, contact panel provides more easily input mode.Contact panel is broadly divided into resistance
Formula (resistive) contact panel and condenser type (capacitive) contact panel.With regard to capacitance type touch-control panel
For, operate with finger touch panel.
In the manufacturing of capacitance type touch-control panel (being generally called contact panel below), in order to ensure touch-control
The precision demand up to specification of panel, it will usually contact panel by the gross is inspected by random samples, and inspects by random samples
Process can be touched contact panel on multiple selected measurement points and read via contact panel measured
Capacitance.When measured capacitance falls in preset range, then assert this batch of contact panel
It is qualified to inspect by random samples.
But, above-mentioned sampling observation process measures only for the capacitance of some point of contact panel, with
Whether the capacitance measured by judgement falls in preset range.But, user can reflect contact panel sometimes
Some region have the bad situation of touch-control to occur, but above-mentioned sampling observation process cannot be for contact panel
Whole face be estimated.
Summary of the invention
The present invention provides a kind of capacitance measurement system, in order to measure the capacitance of contact panel corresponding measurement
Result produces coloured image.
The present invention provides a kind of capacitance measurement method, in order to measure the capacitance of contact panel corresponding measurement
Result produces coloured image.
A kind of capacitance measurement system of the present invention includes that a three-dimensional mobile device, a contact cotrol head and control main
Machine.Contact cotrol head is connected to three-dimensional mobile device.Control main frame and be electrically connected to three-dimensional mobile device and touch-control
Panel.Control main frame and move contact cotrol head, with according to a contact panel by controlling three-dimensional mobile device
The position of the multiple measurement points arranged in a matrix fashion on whole is to touch contact panel, and reads touch surface
Each measurement capacitance measured when point is touched by contact cotrol head of plate.Control main frame measures this of point according to these
A little capacitances of measuring produce a coloured image, to show the distribution measuring capacitance of whole of contact panel.
A kind of capacitance measurement method of the present invention comprises the following steps.Host computer control one is controlled three-dimensional by one
Mobile device is with a mobile contact cotrol head, many to arrange in a matrix fashion on whole according to a contact panel
Contact panel is touched in the individual position measuring point, and each point of measuring reading contact panel is touched by contact cotrol head
Time measurement capacitance.Color according to these these measurement capacitances generations one measuring point by controlling main frame
Color image, to show the distribution measuring capacitance of whole of contact panel.
Based on above-mentioned, in the present invention, measure the capacitance of whole of contact panel, and according to measured
Capacitance produces a coloured image, to show the distribution of the capacitance of whole of contact panel.Therefore, use
According to the color of coloured image, family can judge whether all capacitances measuring point of contact panel are being preset
In the range of, it is possible to change the electric capacity in certain region judging contact panel according to the color of coloured image
Value drop is the most excessive.
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate
Accompanying drawing is described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of capacitance measurement system of one embodiment of the invention.
Fig. 2 is the schematic diagram measuring whole the measurement result drawn of contact panel.
Fig. 3 is the schematic diagram that the measurement result of Fig. 2 is converted into coloured image.
Fig. 4 is the schematic diagram of a kind of capacitance measurement system of one embodiment of the invention.
[symbol description]
50: contact panel
100: capacitance measurement system
110: three-dimensional mobile device
120: contact cotrol head
130: control main frame
200: coloured image
201: color lump
S102, S104: step
Detailed description of the invention
Refer to Fig. 1, in the present embodiment, capacitance measurement system 100 include a three-dimensional mobile device 110,
One contact cotrol head 120 and controls main frame 130.Contact cotrol head 120 is connected to three-dimensional mobile device 110.Control
Main frame 130 is electrically connected to three-dimensional mobile device 110 and a contact panel 50.Three-dimensional mobile device 110
Contact panel 50 to be measured can be positioned.Control main frame 130 and move by controlling three-dimensional mobile device 110
Contact cotrol head 120, the position of the multiple measurement points to arrange in a matrix fashion on whole according to contact panel 50
Put and touch contact panel 50, and when each measurement point reading contact panel 50 is touched by contact cotrol head 120
Measurement capacitance.The measurement capacitance of these positions measuring point and correspondence is as shown in Figure 2.
Refer to Fig. 1 to Fig. 3, controlling main frame 130 can be according to these measurement capacitance of these measurement points
(such as Fig. 2) produces a coloured image 200 (such as Fig. 3), to show the measurement electricity of whole of contact panel 50
The distribution of capacitance.Therefore, user can visually judge measured touch surface by coloured image 200
Whether the quality of plate 50 meets the requirements.User can judge contact panel according to the color of coloured image 200
Whether the capacitance of all measurement points of 50 is in preset range, it is possible to according to the color of coloured image 200
Change judges that the capacitance drop in certain region of contact panel 50 is the most excessive.
Refer again to Fig. 1 to Fig. 3, in the present embodiment, coloured image 200 is by multiple color lump 201 institutes
Constituting, these color lumps 201 these positions measuring point corresponding respectively are arranged on coloured image 200, and
Control main frame 130 according to each measurement capacitance (such as Fig. 2) measuring point determine corresponding color lump 201 (as
Color Fig. 3) presented.
Refer again to Fig. 1 to Fig. 3, in the present embodiment, control main frame 130 and more can store a look-up table
(or comparison list), look-up table includes that the multiple capacitance of continuous print is interval, and these capacitance intervals are respectively
Corresponding multiple different colors, and control main frame 130 by each measurement capacitance comparison look-up table measuring point
To obtain the color that each color lump 201 measured corresponding to point is presented.In the present embodiment, can be according to this
The size in a little capacitances intervals selects these colors along a colour circle or color stage.Therefore, user can be by
The distribution of color of colour circle or the light and shade distribution of color range judge the measurement capacitance of whole of contact panel 50
Distribution.
Refer to Fig. 1 to Fig. 4, coordinate the capacitance measurement system 100 of Fig. 1 that the electricity of the present embodiment is described
Hold measuring method.First, as shown in step S102, control three-dimensional mobile device by controlling main frame 130
110 to move contact cotrol head 120, with many according to arranging in a matrix fashion on whole of a contact panel 50
Contact panel 50 is touched in the individual position measuring point, and reads each point of measuring of contact panel 50 by touch-control
Measurement capacitance during 120 touching.Then, as shown in step S104, depend on by controlling main frame 130
A coloured image 200 (such as Fig. 3) is produced according to these these measurements capacitance (such as Fig. 2) measuring point,
The distribution measuring capacitance with whole of contact panel 50 of performance.
Refer to Fig. 1 to Fig. 4, in step S104 producing coloured image 200, coloured image 200
It is made up of multiple color lumps 201, controls main frame 130 and measure according to the most corresponding these of these color lumps 201
The position of point is arranged on coloured image 200, and controls main frame 130 according to each measurement electric capacity measuring point
Value (such as Fig. 2) determines the color that corresponding color lump 201 (such as Fig. 3) is presented.Additionally, producing coloured silk
In the step of color image 200, control main frame 130 and more can store a look-up table (or comparison list), search
Table includes that the multiple capacitance of continuous print is interval, and the most corresponding multiple different colors in these capacitance intervals,
And control main frame 130 by the measurement capacitance comparison look-up table of each measurement point to obtain each measurement corresponding to point
The color that presented of color lump 201.In the present embodiment, can be according to the size edge in these capacitances intervals
A colour circle or color stage selects these colors.
When contact panel by the gross is inspected by random samples, several contact panels can be selected and carry out comprehensive electricity
Capacitance is measured, to judge whether that all measurement capacitances measuring point all fall within preset range.If from coloured silk
Whether the variability measuring capacitance of on color image it is observed that local is excessive, then can differentiate further
It is working condition or other factors are caused, to avoid continuing to produce defective products.
In sum, in the present invention, the capacitance of whole of contact panel is measured, and according to measured
Capacitance produces a coloured image, to show the distribution of the capacitance of whole of contact panel.Therefore, use
According to the color of coloured image, family can judge whether all capacitances measuring point of contact panel are being preset
In the range of, it is possible to change the electric capacity in certain region judging contact panel according to the color of coloured image
Value drop is the most excessive.
Although the present invention is open as above with embodiment, so it is not limited to the present invention, this area skill
Art personnel without departing from the spirit and scope of the present invention, when making a little change and retouching, thus this
Bright protection domain is when being as the criterion depending on the defined person of appending claims.
Claims (10)
1. a capacitance measurement system, it is characterised in that this capacitance measurement system includes:
Three-dimensional mobile device；
Contact cotrol head, is connected to this three-dimensional mobile device；And
Control main frame, be electrically connected to this three-dimensional mobile device and contact panel, wherein this control main frame mat
By control this three-dimensional mobile device move this contact cotrol head, with on whole according to this contact panel with matrix
The position of multiple measurement points that mode arranges is to touch this contact panel, and reads respectively should of this contact panel
Measure measurement capacitance when point is touched by this contact cotrol head, and this control main frame measures this of point according to these
A little capacitances of measuring produce coloured image, to show the distribution measuring capacitance of whole of this contact panel.
2. capacitance measurement system as claimed in claim 1, wherein this coloured image is by multiple color lump institutes structure
Becoming, these color lumps these positions measuring point corresponding respectively are arranged on this coloured image, and this control master
Machine determines, according to this measurement capacitance of respectively this measurement point, the color that this corresponding color lump is presented.
3. capacitance measurement system as claimed in claim 2, wherein this control main frame storage look-up table, should
Look-up table includes that the multiple capacitance of continuous print is interval, and these capacitance intervals are the most corresponding multiple different
Color, and this control main frame by this measurement this look-up table of capacitance comparison of respectively this measurement point with obtain respectively should
Measure the color that this color lump corresponding to point is presented.
4. capacitance measurement system as claimed in claim 3, wherein according to the size that these capacitances are interval
These colors are selected along colored rings.
5. capacitance measurement system as claimed in claim 3, wherein according to the size that these capacitances are interval
These colors are selected along color range.
6. a capacitance measurement method, it is characterised in that this capacitance measurement method includes:
By controlling host computer control three-dimensional mobile device to move contact cotrol head, with according to whole of contact panel
On the positions of multiple measurement points that arrange in a matrix fashion to touch this contact panel, and read this touch surface
Measurement capacitance when respectively this measurement point is touched by this contact cotrol head of plate；And
Coloured image is produced, with table according to these these measurement capacitances measuring point by this control main frame
The now distribution measuring capacitance of whole of this contact panel.
7. capacitance measurement method as claimed in claim 6, wherein in the step producing this coloured image,
This coloured image is made up of multiple color lumps, and this control main frame measures point according to the most corresponding these of these color lumps
Position be arranged on this coloured image, and this control main frame is according to this measurement capacitance of respectively this measurement point
Determine the color that this corresponding color lump is presented.
8. capacitance measurement method as claimed in claim 7, wherein in the step producing this coloured image,
This control main frame storage look-up table, this look-up table includes that the multiple capacitance of continuous print is interval, and these electric capacity
The most corresponding multiple different colors in value interval, and this control main frame is by this measurement electric capacity of respectively this measurement point
The color that this look-up table of value comparison is presented with this color lump corresponding to acquisition respectively this measurement point.
9. capacitance measurement method as claimed in claim 8, wherein according to the size that these capacitances are interval
These colors are selected along colored rings.
10. capacitance measurement method as claimed in claim 8, wherein according to the size that these capacitances are interval
These colors are selected along color range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078923.3A CN105988041A (en) | 2015-02-13 | 2015-02-13 | Capacitance measuring system and capacitance measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078923.3A CN105988041A (en) | 2015-02-13 | 2015-02-13 | Capacitance measuring system and capacitance measuring method |
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| CN201510078923.3A Pending CN105988041A (en) | 2015-02-13 | 2015-02-13 | Capacitance measuring system and capacitance measuring method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120019479A1 (en) * | 2009-03-13 | 2012-01-26 | Sentrend Corporation | Touch pad for multiple sensing |
| CN102520291A (en) * | 2011-12-23 | 2012-06-27 | 南京熊猫电子股份有限公司 | Capacitive touch screen detection device |
| CN102636718A (en) * | 2012-05-10 | 2012-08-15 | 意力(广州)电子科技有限公司 | Mutual capacitance touch screen detection method |
| CN102866322A (en) * | 2012-08-29 | 2013-01-09 | 北京集创北方科技有限公司 | Touch device detection method |
| CN103308776A (en) * | 2013-05-08 | 2013-09-18 | 漳州宝发光电科技有限公司 | Testing circuit of capacitive screen and testing method thereof |
-
2015
- 2015-02-13 CN CN201510078923.3A patent/CN105988041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120019479A1 (en) * | 2009-03-13 | 2012-01-26 | Sentrend Corporation | Touch pad for multiple sensing |
| CN102520291A (en) * | 2011-12-23 | 2012-06-27 | 南京熊猫电子股份有限公司 | Capacitive touch screen detection device |
| CN102636718A (en) * | 2012-05-10 | 2012-08-15 | 意力(广州)电子科技有限公司 | Mutual capacitance touch screen detection method |
| CN102866322A (en) * | 2012-08-29 | 2013-01-09 | 北京集创北方科技有限公司 | Touch device detection method |
| CN103308776A (en) * | 2013-05-08 | 2013-09-18 | 漳州宝发光电科技有限公司 | Testing circuit of capacitive screen and testing method thereof |
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Application publication date: 20161005 |
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