CN104714147B - Conductive film detection method and system - Google Patents
Conductive film detection method and system Download PDFInfo
- Publication number
- CN104714147B CN104714147B CN201510126687.8A CN201510126687A CN104714147B CN 104714147 B CN104714147 B CN 104714147B CN 201510126687 A CN201510126687 A CN 201510126687A CN 104714147 B CN104714147 B CN 104714147B
- Authority
- CN
- China
- Prior art keywords
- conductive film
- resonant tank
- reading device
- electric signal
- active point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 34
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention provides a conductive film detection method, which comprises the following steps: the method comprises the following steps of (1) enabling an active point-reading device to move in a contact mode on a conductive film, wherein the active point-reading device emits electromagnetic signals with fixed frequency; opening a resonant circuit in the contact of the conductive film and the active point reading device, and closing the resonant circuit after the resonant circuit receives the electromagnetic signal and generates a corresponding electric signal; judging the state of the corresponding resonant circuit according to the value of the electric signal, and when the difference between the values of the electric signal between the two resonant circuits is smaller than a signal threshold value, short-circuiting the two resonant circuits; when no electric signal is output from the resonant circuit, the resonant circuit is open. Whether the conductive film has an open circuit or a short circuit or not is tested, the conductive film is tested before and after installation in a traditional mode, and the method only needs to test once after installation, so that the efficiency is improved.
Description
Technical field
The present invention relates to detection technique, more particularly to a kind of conductive film detection method and system.
Background technology
Conductive film uses test clip with that will be detected after assembling before machine assembling used in present point reader
For the detection conductive film of tool and universal meter with the presence or absence of open circuit, short circuit, it is low whether impedance meets this method of testing efficiency of standard,
It has impact on the efficiency of complete machine production.
The content of the invention
Based on this, it is necessary to provide one kind can quick detection conductive film with the presence or absence of open circuit, short circuit, whether impedance meet
Standard, the conductive film detection method of testing efficiency can be effectively improved.
The invention provides a kind of conductive film detection method, comprise the following steps：
Active point-of-reading device is contacted to movement, the electromagnetism of the active point-of-reading device transmitting fixed frequency on conductive film
Signal；
The resonant tank in being contacted on the conductive film with the active point-of-reading device is opened, is received in the resonant tank
Closed after corresponding electric signal is produced after the electromagnetic signal；
The state of the corresponding resonant tank is judged according to the value of the electric signal, when have two resonant tanks it
Between the difference of value of electric signal be less than signal threshold value, then two resonant tank short circuits；When having the resonant tank without electric signal
Output, then the resonant tank is open circuit.
The invention provides also a kind of conductive film detecting system, including：
Active point-of-reading device, for contacting movement, and the active point-of-reading device transmitting fixed frequency on conductive film
Electromagnetic signal；
Control module, for opening the resonant tank in being contacted on the conductive film with the active point-of-reading device, and
Closed after corresponding electric signal is produced after the resonant tank receives the electromagnetic signal；
Judge module, for judging the state of the corresponding resonant tank according to the value of the electric signal, when there is two
The difference of the value of electric signal between the resonant tank is less than signal threshold value, then two resonant tank short circuits；It is described humorous when having
Loop shake without electric signal output, then the resonant tank is open circuit.
Compared with conventional conductive thin film testing mode, above-mentioned conductive film detection method and system have at least following excellent
Point：First, with the presence or absence of open circuit and short circuit, traditional mode will be surveyed testing conductive film before installation and after installation
Examination, this method only need to test after installation once, improve efficiency；Second, traditional test mode is needed by it
Its instrument or equipment, this method only needs equipment to can be carried out testing in itself, more convenient, saves production cost.
Brief description of the drawings
Fig. 1 is the flow chart of conductive film detection method in present pre-ferred embodiments；
Fig. 2 is the module map of conductive film detecting system in present pre-ferred embodiments；.
Embodiment
In order that technical problems, technical solutions and advantageous effects to be solved by the present invention are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, conductive film detection method is, it is necessary to which point reader is started shooting, and is entered in present pre-ferred embodiments
Specific conducting film detection program interface, method comprise the following steps：
Step S110, active point-of-reading device is contacted on conductive film movement, and the active point-of-reading device transmitting is fixed
The electromagnetic signal of frequency.
Specifically, active point-of-reading device is active talking pen.In other embodiments, active point-of-reading device can ask tool
Stylus active, that electromagnetic signal can be sent etc..After point reader enters conducting film detection program, by talking pen in point reader
Press on panel (conductive film), and slowly moved along panel.During this, after talking pen is pressed, in the nib of talking pen
Thin film switch is opened, and LC loops are formed on talking pen, starts the electromagnetic signal of externally transmitting fixed frequency.In the present embodiment, electricity
The fixed frequency of magnetic signal is predeterminated frequency, such as 450KHz)
Step S120, the resonant tank in being contacted on the conductive film with the active point-of-reading device is opened, it is humorous at this
Shake loop receive produce corresponding electric signal after the electromagnetic signal after close.
Specifically, open with corresponding resonant tank in active point-of-reading device moving process in conductive film, now this is humorous
The loop that shakes starts to receive and sends the electromagnetic signal that frequency is 450KHz from talking pen, and this process need to keep preset time, such as protect
Hold us, the resonant tank on conductive film reaches saturation state and produce electrical number according to resonance principle.In the present embodiment,
Resonant tank is LC loops.
The electric signal on LC loops on conductive film is output to analog to digital conversion circuit or mould after filtering, after enhanced processing
Number conversion chip, afterwards on MCU (Micro Control Unit, micro-control unit) the reading analog to digital conversion circuits of point reader
Signal value, it is then shut off the loop.
Step S130, the value of the electric signal according to caused by LC loops judge the state of the corresponding resonant tank,
The difference of the value of electric signal between having two resonant tanks is less than signal threshold value, then two resonant tank short circuits；When
There is the resonant tank without electric signal output, then the resonant tank is open circuit.Telecommunications between having two resonant tanks
Number the difference of value be more than signal threshold value, then two resonant tanks are without short circuit.In the present embodiment, signal threshold value 300mv.
In in general embodiment, also include before step S130：The active point-of-reading device is traveled through into the conduction
The step of all resonant tanks on film.Specifically, talking pen slowly moves along the diagonal on conductive film panel, with true
All resonant tanks can receive the signal on talking pen on guarantor's conductive film.
With reference to figure 2, a kind of conductive film detecting system provided by the invention, including：Active point-of-reading device 11, control module
12 and judge module.Control module 12 and judge module 13 are disposed in point reader.
Active point-of-reading device 11 is used to contact movement on conductive film, and the fixed frequency of the active point-of-reading device 11 transmitting
The electromagnetic signal of rate.
Control module 12 is used to open the resonant tank in contacting with the active point-of-reading device 11 on the conductive film,
And closed after corresponding electric signal is produced after the resonant tank receives the electromagnetic signal.
Judge module 13 is used for the state that the corresponding resonant tank is judged according to the value of the electric signal, when there is two
The difference of the value of electric signal between the resonant tank is less than signal threshold value, then two resonant tank short circuits；It is described humorous when having
Loop shake without electric signal output, then the resonant tank is open circuit.
Preferably, it is described to sentence after the active point-of-reading device 11 being traveled through into all resonant tanks on the conductive film
Disconnected module 13 judges the state of the corresponding resonant tank further according to the value of the electric signal.
Preferably, the resonant tank is LC loops.Preferably, the active point-of-reading device 11 is active talking pen.
Compared with conventional conductive thin film testing mode, above-mentioned conductive film detection method and system have at least following excellent
Point：First, with the presence or absence of open circuit and short circuit, traditional mode will be surveyed testing conductive film before installation and after installation
Examination, this method only need to test after installation once, improve efficiency；Second, traditional test mode is needed by it
Its instrument or equipment, this method only needs equipment to can be carried out testing in itself, more convenient, saves production cost.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each work(
Can unit division progress for example, in practical application, can be as needed and by above-mentioned function distribution by different functions
Unit is completed, i.e., the internal structure of described device is divided into different functional units or module, described above complete to complete
Portion or partial function.Each functional unit in embodiment can be integrated in a processing unit or unit
Individually be physically present, can also two or more units it is integrated in a unit, above-mentioned integrated unit can both be adopted
Realized, can also be realized in the form of SFU software functional unit with the form of hardware.In addition, the specific name of each functional unit
Only to facilitate mutually distinguishing, the protection domain of the application is not limited to.The specific works mistake of unit in said apparatus
Journey, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the module or unit,
Only a kind of division of logic function, can there is an other dividing mode when actually realizing, such as multiple units or component can be with
With reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection, can be electrical, mechanical or other forms.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to foregoing reality
Example is applied the present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed
Or replace, the essence of appropriate technical solution is departed from the spirit and model of each embodiment technical scheme of the embodiment of the present invention
Enclose.
Claims (8)
1. a kind of conductive film detection method, it is characterised in that comprise the following steps：
Active point-of-reading device is contacted to movement, the electromagnetism letter of the active point-of-reading device transmitting fixed frequency on conductive film
Number；
The resonant tank in being contacted on the conductive film with the active point-of-reading device is opened, the electricity is received in the resonant tank
Closed after corresponding electric signal is produced after magnetic signal；
The state of the corresponding resonant tank is judged according to the value of the electric signal, between there are two resonant tanks
The difference of the value of electric signal is less than signal threshold value, then two resonant tank short circuits；When having the resonant tank without electric signal output,
Then the resonant tank is open circuit.
2. conductive film detection method according to claim 1, it is characterised in that in the value according to the electric signal
Also include before the step of judging the state of the corresponding resonant tank：
The active point-of-reading device is traveled through to all resonant tanks on the conductive film.
3. conductive film detection method according to claim 1 or 2, it is characterised in that the resonant tank is LC loops.
4. conductive film detection method according to claim 1 or 2, it is characterised in that the active point-of-reading device is to have
Source talking pen.
A kind of 5. conductive film detecting system, it is characterised in that including：
Active point-of-reading device, for contacting movement, and the electricity of the active point-of-reading device transmitting fixed frequency on conductive film
Magnetic signal；
Control module, for opening the resonant tank in being contacted on the conductive film with the active point-of-reading device, and at this
Resonant tank receives produce corresponding electric signal after the electromagnetic signal after close；
Judge module, for judging the state of the corresponding resonant tank according to the value of the electric signal, when having described in two
The difference of the value of electric signal between resonant tank is less than signal threshold value, then two resonant tank short circuits；Returned when there is the resonance
Road is open circuit without electric signal output, the then resonant tank.
6. conductive film detecting system according to claim 5, it is characterised in that the active point-of-reading device is traveled through into institute
After stating all resonant tanks on conductive film, the judge module judges corresponding described humorous further according to the value of the electric signal
Shake the state in loop.
7. the conductive film detecting system according to claim 5 or 6, it is characterised in that the resonant tank is LC loops.
8. the conductive film detecting system according to claim 5 or 6, it is characterised in that the active point-of-reading device is to have
Source talking pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126687.8A CN104714147B (en) | 2015-03-20 | 2015-03-20 | Conductive film detection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126687.8A CN104714147B (en) | 2015-03-20 | 2015-03-20 | Conductive film detection method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104714147A CN104714147A (en) | 2015-06-17 |
| CN104714147B true CN104714147B (en) | 2017-12-01 |
Family
ID=53413641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510126687.8A Active CN104714147B (en) | 2015-03-20 | 2015-03-20 | Conductive film detection method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104714147B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590996A (en) * | 2003-09-05 | 2005-03-09 | 致茂电子股份有限公司 | Oscillation detecting method and its device |
| CN101477751A (en) * | 2008-10-14 | 2009-07-08 | 章健 | Acoustic reference book for the blind and automatic information inquiry voice playing system |
| KR20100067618A (en) * | 2008-12-11 | 2010-06-21 | 오에이치티 가부시끼가이샤 | Circuit pattern inspection device and circuit pattern inspection method thereof |
| CN104076252A (en) * | 2013-03-29 | 2014-10-01 | 致茂电子(苏州)有限公司 | Electrical performance test device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI221922B (en) * | 2001-02-19 | 2004-10-11 | Nihon Densan Read Kabushiki Ka | A circuit board testing apparatus and method for testing a circuit board |
-
2015
- 2015-03-20 CN CN201510126687.8A patent/CN104714147B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590996A (en) * | 2003-09-05 | 2005-03-09 | 致茂电子股份有限公司 | Oscillation detecting method and its device |
| CN101477751A (en) * | 2008-10-14 | 2009-07-08 | 章健 | Acoustic reference book for the blind and automatic information inquiry voice playing system |
| KR20100067618A (en) * | 2008-12-11 | 2010-06-21 | 오에이치티 가부시끼가이샤 | Circuit pattern inspection device and circuit pattern inspection method thereof |
| CN104076252A (en) * | 2013-03-29 | 2014-10-01 | 致茂电子(苏州)有限公司 | Electrical performance test device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104714147A (en) | 2015-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170048370A1 (en) | Method and apparatus for operating electronic device detachable from another electronic device | |
| CN103376411B (en) | The device in mobile terminal, inverter state reported to the police and the device analyzing motor status | |
| CN105898678B (en) | A kind of matching method and electronic equipment | |
| CN203720859U (en) | Touch-control cover plate with function of fingerprint recognition, and electronic equipment | |
| CN106375478B (en) | A kind of synchronous method of mobile terminal data, apparatus and system | |
| CN103198033A (en) | Apparatus and method of identifying a USB or an MHL device | |
| CN105828588A (en) | Mobile terminal and device for improving EMC performance of mobile terminal display screen | |
| CN201765291U (en) | Tester using electromagnetic induction principle to look for short circuit point position | |
| CN105677990B (en) | Simplify the method for verifying model realization in a kind of chip checking | |
| CN105183678A (en) | Communication method and apparatus of terminal interface | |
| CN104346262B (en) | Method and device for acquiring power consumption information of application program and mobile terminal | |
| CN102298112B (en) | The method of testing of a kind of PLD and system | |
| CN104714147B (en) | Conductive film detection method and system | |
| CN201392383Y (en) | Test device | |
| CN105933506A (en) | Mobile terminal unlocking method, device, mobile terminal and earphone | |
| CN104123253B (en) | A kind of method and apparatus for realizing chip interconnection to be verified | |
| CN103838699B (en) | A kind of pluggable Multifunctional mobile financial terminal and port numbers fixing means thereof | |
| CN109145570A (en) | Solve lock control method and relevant apparatus | |
| CN205281452U (en) | Integrated touch -control display panel and integrated touch -sensitive display device | |
| CN103135874B (en) | Scan method, device, processor and electronic equipment towards projection-type touch screen | |
| CN105893203A (en) | CEC verification method and device | |
| CN106155378A (en) | A kind of touch screen terminal and near field communication method, device and system | |
| CN115294648A (en) | Man-machine gesture interaction method and device, mobile terminal and storage medium | |
| CN111711942B (en) | Electronic device, control method of electronic device, and readable storage medium | |
| CN205139289U (en) | Distribution test system of on -vehicle rack of 200T type row accuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |