CN103869236B - The method of testing of infrared touch panel PCBA and measurement jig - Google Patents
The method of testing of infrared touch panel PCBA and measurement jig Download PDFInfo
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- CN103869236B CN103869236B CN201410128949.XA CN201410128949A CN103869236B CN 103869236 B CN103869236 B CN 103869236B CN 201410128949 A CN201410128949 A CN 201410128949A CN 103869236 B CN103869236 B CN 103869236B
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Abstract
The embodiment of the invention discloses the method for testing of infrared touch panel PCBA, for individually one piece of test board being tested, learn that the function of this test board is the most normal, the trouble point of infrared touch panel PCBA can be positioned exactly, test process, without mounting or dismounting, simple to operate, improves test and the efficiency produced.The method comprise the steps that and input control signal to A plate so that infrared signal launched by described A plate;Getting analogue signal from B plate, described analogue signal exports after being received described infrared signal by described B plate;Judging whether described analogue signal meets default condition, the test board function in the most described A plate and B plate is normal, if it is not, the most described test board dysfunction.The embodiment of the present invention also provides for the measurement jig of infrared touch panel PCBA.
Description
Technical field
The present invention relates to automatic test field, particularly relate to the method for testing of infrared touch panel PCBA
And measurement jig.
Background technology
Infrared technology touch screen (Infrared Touch Screen Technology is called for short infrared touch panel)
It is made up of the Infrared emitting and receiving sensing element being contained on touch screen housing, in screen surface, shape
Becoming infra-red detection net, any touching object can change the infrared ray on contact and realize touch screen operation.
Infrared-type touch screen to realize principle similar to surface acoustic wave type touch-control, it uses infrared emitting
With reception sensing element.These elements form infra-red detection net, the object of touch control operation in screen surface
(such as finger) can change the infrared ray of touch, and then be converted to the coordinate position of touch-control and realize
The response of operation.On infrared-type touch screen, the circuit board arrangement of four limit arrangements of screen has infrared
Penetrate pipe and infrared receiving tube, be correspondingly formed the infrared ray matrix anyhow intersected.
PCBA is the abbreviation of English Printed Circuit Board+Assembly, say, that PCB is empty
Plate is through SMT(surface mounting technology) upper part, then through DIP(dual-inline package technology) insert
The whole processing procedure of part, is called for short PCBA.Infrared touch panel PCBA is then through this whole processing procedure
Infrared touch panel pcb board
At present, the common practices to infrared touch panel PCBA is first to be assembled into red by all of PCBA
One housing of outside line touch screen, is then tested whole housing by test software.
But, by test software, whole housing being carried out test cannot be accurately positioned housing by trouble point
Certain PCBA on, and if testing and find, when this housing exists the PCBA of fault, to need this outer
Frame is taken apart and is keeped in repair, and is assembled by housing again and test after maintenance, and whole test process is loaded down with trivial details multiple
Miscellaneous, reduce test and the efficiency produced.
Summary of the invention
Embodiments provide method of testing and the measurement jig of infrared touch panel PCBA, it is possible to
Individually one piece of test board is tested, learn that the function of this test board is the most normal, it is possible to be fixed exactly
The trouble point of position infrared touch panel PCBA, test process, without mounting or dismounting, simple to operate, improves survey
Examination and the efficiency produced.
The method of testing of a kind of infrared touch panel PCBA that the embodiment of the present invention provides, including:
Control signal is inputted so that infrared signal launched by described A plate to A plate;
Getting analogue signal from B plate, described analogue signal is received described infrared letter by described B plate
Export after number;
Judge whether described analogue signal meets default condition, in the most described A plate and B plate
Test board function is normal, if it is not, the most described test board dysfunction;
In described A plate and B plate, a plate is test board, and another plate is on-gauge plate.
Alternatively, described method also includes:
By obtaining the voltage of the sampling resistor of series connection on the power path of PCBA circuit board, detect institute
State the electric current of PCBA circuit board;
Short circuit is opened by what the size of described electric current learnt described PCBA circuit board;
Described PCBA circuit board is the test board in described A plate and described B plate.
Alternatively, it is judged that whether described analogue signal meets default condition specifically includes:
Described analogue signal is amplified and/or Filtering Processing;
The signal magnitude of described analogue signal after reading process;
Judge whether described signal magnitude exceedes default threshold value.
Alternatively,
Described A plate is infrared emission PCBA test board, and described B plate is infrared receiver PCBA on-gauge plate;
Or,
Described A plate is infrared emission PCBA on-gauge plate, and described B plate is infrared receiver PCBA test board.
Alternatively, described method also includes:
When test board dysfunction in described A plate and B plate, perform operation of reporting to the police;
Described warning operation is warning light flicker, buzzer sounding or sends warning message to far-end.
The measurement jig of a kind of infrared touch panel PCBA that the embodiment of the present invention provides, including:
Input control module, for inputting control signal to A plate so that infrared signal launched by described A plate;
Signal acquisition module, for getting analogue signal from B plate, described analogue signal is by described B
Plate exports after receiving described infrared signal;
Judging treatmenting module, for judging whether described analogue signal meets default condition, the most then
Test board function in described A plate and B plate is normal, if it is not, the most described test board dysfunction;
In described A plate and B plate, a plate is test board, and another plate is on-gauge plate.
Alternatively, described measurement jig also includes:
Detection current module, for the sampling electricity by obtaining series connection on the power path of PCBA circuit board
The voltage of resistance, detects the electric current of described PCBA circuit board;
Open short-circuit analysis module, for learning opening of described PCBA circuit board by the size of described electric current
Short circuit;
Described PCBA circuit board is the test board in described A plate and described B plate.
Alternatively, described judging treatmenting module specifically includes:
Amplify filter unit, for described analogue signal is amplified and/or Filtering Processing;
Read unit, for reading the letter of the described analogue signal after described amplification filter unit processes
Number size;
Discriminatory analysis unit, for judging whether described signal magnitude exceedes default threshold value, the most then
Test board function in described A plate and B plate is normal, if it is not, the most described test board dysfunction.
Alternatively, described measurement jig also includes:
Mode selection module, for selecting the test pattern of described measurement jig to be test according to level switching
Pattern one or test pattern two;
Described test pattern one is infrared emission PCBA test board for described A plate, and described B plate is infrared
Receive PCBA on-gauge plate;
Described test pattern two is infrared emission PCBA on-gauge plate for described A plate, and described B plate is infrared
Receive PCBA test board.
Alternatively, described measurement jig also includes:
Alarm module, for during when test board dysfunction in described A plate and B plate, performs the behaviour that reports to the police
Make;
Described warning operation is warning light flicker, buzzer sounding or sends warning message to far-end.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
In the embodiment of the present invention, first input control signal to A plate so that infrared letter launched by described A plate
Number;Then, getting analogue signal from B plate, described analogue signal is received described by described B plate
Export after infrared signal;Finally, it is judged that whether described analogue signal meets default condition, the most then
Test board function in described A plate and B plate is normal, if it is not, the most described test board dysfunction;Described
In A plate and B plate, a plate is test board, and another plate is on-gauge plate.In embodiments of the present invention, may be used
Individually one piece of test board to be tested, learn that the function of this test board is the most normal, it is possible to exactly
The trouble point of location infrared touch panel PCBA, test process, without mounting or dismounting, simple to operate, improves
Test and the efficiency produced.
Accompanying drawing explanation
Fig. 1 is one embodiment flow process of method of testing of embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Figure;
Fig. 2 is another embodiment stream of method of testing of embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Cheng Tu;
Fig. 3 is one example structure of measurement jig of embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Figure;
Fig. 4 is another embodiment of measurement jig knot of embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Composition.
Detailed description of the invention
Embodiments provide method of testing and the measurement jig of infrared touch panel PCBA, be used for
Individually one piece of test board is tested, learn that the function of this test board is the most normal, it is possible to be fixed exactly
The trouble point of position infrared touch panel PCBA, test process, without mounting or dismounting, simple to operate, improves survey
Examination and the efficiency produced.
For making the goal of the invention of the present invention, feature, the advantage can be the most obvious and understandable, below will
In conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that the embodiments described below are only a part of embodiment of the present invention, and not all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The all other embodiments obtained under work premise, broadly fall into the scope of protection of the invention.
Refer to one embodiment of method of testing of Fig. 1, embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Including:
101, control signal is inputted to A plate so that infrared signal launched by this A plate;
When starting testing infrared ray touch screen PCBA, measurement jig can input control signal to A plate,
This A plate is made to launch infrared signal.
102, from B plate, analogue signal is got;
A plate is launched after infrared signal, after this B plate can receive this infrared signal and export analogue signal,
Then, measurement jig can get this analogue signal from B plate.
103, judge whether this analogue signal meets default condition, the most then perform step 104, if
No, then perform step 105;
Measurement jig is after getting this analogue signal, it is judged that whether this analogue signal meets default condition,
The most then perform step 104, if it is not, then perform step 105.
104, the test board function in A plate and B plate is normal;
If this analogue signal meets default condition, then can be determined that the test board function in A plate and B plate
Normally.
105, the test board dysfunction in A plate and B plate.
If this analogue signal does not meets default condition, then can be determined that the test board merit in A plate and B plate
Can be bad.
It should be noted that a plate is test board in this A plate and B plate, another plate is on-gauge plate.
It is understood that test board is the infrared touch panel PCBA that functional status is unknown, need by surveying
Examination knows that its functional status is normal or bad, and on-gauge plate is then that known functional status is the reddest
Outside line touch screen PCBA.
In the present embodiment, the method for testing step of infrared touch panel PCBA said before is: first
Control signal is inputted so that infrared signal launched by this A plate to A plate;Then, from B plate, mould is got
Intending signal, this analogue signal exports after being received this infrared signal by this B plate;Finally, it is judged that this simulation
Whether signal meets default condition, the most then the test board function in this A plate and B plate is normal, if
No, then this test board dysfunction;In this A plate and B plate, a plate is test board, and another plate is mark
Quasi-plate.In the present embodiment, individually one piece of test board can be tested, learn the merit of this test board
Can be the most normal, it is possible to exactly position infrared touch panel PCBA trouble point, test process without
Mounting or dismounting, simple to operate, improve test and the efficiency produced.
For ease of understanding, the method for testing to the infrared touch panel PCBA in the embodiment of the present invention below
It is described in detail, refers to Fig. 2, the method for testing of embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Another embodiment includes:
201, control signal is inputted to A plate so that infrared signal launched by this A plate;
When starting testing infrared ray touch screen PCBA, measurement jig can input control signal to A plate,
This A plate is made to launch infrared signal.
202, from B plate, analogue signal is got;
A plate is launched after infrared signal, after this B plate can receive this infrared signal and export analogue signal,
Then, measurement jig can get this analogue signal from B plate.
203, this analogue signal is amplified and/or Filtering Processing;
After measurement jig gets this analogue signal, this analogue signal can be amplified by measurement jig
And/or Filtering Processing.It is understood that the analogue signal of output is the most micro-from B plate
Weak and there may be interference signal, therefore by this analogue signal through processing and amplifying, so that test
Tool preferably analyzes this analogue signal, it is thus achieved that the signal magnitude of this analogue signal is the most accurate.In like manner
, being filtered process is to remove interference signal that may be present, it is to avoid interference signal is to calibration tape
Disturb.
204, the signal magnitude of this analogue signal after reading process;
This analogue signal is amplified and/or after Filtering Processing, can be with this analogue signal after reading process
Signal magnitude.
205, judge whether this signal magnitude exceedes default threshold value, the most then perform step 206, if
No, then perform step 207;
Measurement jig is after reading this signal magnitude, it can be determined that it is default whether this signal magnitude exceedes
Threshold value, the most then perform step 206, if it is not, then perform step 207.
It should be noted that the threshold value preset can be according to the letter of normal infrared touch panel PCBA board
Number size is configured, and is such as set to the half of the value of normal signal size, and in concrete test
In can be adjusted according to actual needs.When this signal magnitude is more than this threshold value, then it is believed that be somebody's turn to do
Signal magnitude is normal, performs step 206, when this signal magnitude is less than this threshold value, then it is assumed that this letter
Number size is abnormal, performs step 207.
206, the test board function in A plate and B plate is normal;
If this signal magnitude exceedes default threshold value, it is believed that this signal magnitude is normal, the most permissible
Judge that the test board function in A plate and B plate is normal.
207, the test board dysfunction in A plate and B plate.
If this signal magnitude is not above default threshold value, it is believed that this signal magnitude is abnormal, then
Can be determined that the test board dysfunction in A plate and B plate.
It should be noted that a plate is test board in this A plate and B plate, another plate is on-gauge plate.
It is understood that test board is the infrared touch panel PCBA that functional status is unknown, need by surveying
Examination knows that its functional status is normal or bad, and on-gauge plate is then that known functional status is the reddest
Outside line touch screen PCBA.
208, when test board dysfunction in this A plate and B plate, operation of reporting to the police is performed;
When test board dysfunction in this A plate and B plate, perform operation of reporting to the police.It is understood that
When the test board dysfunction in this A plate and B plate is learnt in test, can be operated intuitively by warning
Inform that tester occurs in that the test board of dysfunction, this is because general in production test procedure,
The focus of tester can be mainly the test board of the dysfunction in production line, and reports
Alert operation can provide test result for tester more quickly.
It should be noted that this warning operation can be warning light flicker, buzzer sounding or send out to far-end
Deliver newspaper alarming information, can carry out specifically chosen in actual applications as required.
209, by obtaining the voltage of the sampling resistor of series connection on the power path of PCBA circuit board, detection
Go out the electric current of this PCBA circuit board;
When measurement jig detection PCBA circuit board functional status, measurement jig can also be by obtaining
On the power path of PCBA circuit board, the voltage of the sampling resistor of series connection, detects this PCBA circuit board
Electric current.
It should be noted that the electric current of the voltage of this sampling resistor and this PCBA circuit board can be by
Ratiometric conversion, this proportionality coefficient can be set as K, the voltage of sampling resistor is divided by Proportional coefficient K then
Obtain the electric current of this PCBA circuit board.It is understood that the size of this Proportional coefficient K is by electricity of sampling
In the resistance size of resistance and measurement jig, the amplification of amplifying circuit determines.
210, short circuit is opened by what the size of this electric current learnt this PCBA circuit board;
Measurement jig, can be by the size of this electric current after detecting the electric current of this PCBA circuit board
That learns this PCBA circuit board opens short circuit.If it is understood that this electric current is more than empirical value, then
It is believed that this PCBA circuit board short circuit, this empirical value can be set by normal current size,
Such as normal current 2 times;If this electric current is close to 0 or more much smaller than normal current value, the most permissible
Think that this PCBA circuit board is opened a way.
It should be noted that this PCBA circuit board is the test board in this A plate and this B plate.
During it should be noted that this A plate is infrared emission PCBA test board, this B plate is infrared receiver
PCBA on-gauge plate, or when this A plate is infrared emission PCBA on-gauge plate, this B plate is infrared receiver
PCBA test board.
For ease of understanding, according to the embodiment described by Fig. 2, below with an actual application scenarios to this
The method of testing of the infrared touch panel PCBA in inventive embodiments is described:
Actual application scenarios one: A plate is infrared emission PCBA test board (hereinafter referred to as launching test board),
B plate is infrared receiver PCBA on-gauge plate (hereinafter referred to as receiving on-gauge plate).
1, measurement jig is to launching test board input control signal;
2, the RF transmitter launching test board sends infrared letter to the infrared remote receiver receiving on-gauge plate
Number;
3, after reception on-gauge plate receives this infrared signal, an analogue signal is exported to measurement jig;
4, measurement jig this analogue signal is amplified, Filtering Processing;
5, the signal magnitude of the analogue signal after measurement jig reading process;
6, this signal magnitude is contrasted with standard value (threshold value), find that the value of this signal magnitude is than mark
Quasi-value is big, then this transmitting test board function is normal;
If the value of 7 these signal magnitude is less than standard value, then this transmitting test board dysfunction.
Actual application scenarios two: A plate is infrared emission PCBA on-gauge plate (hereinafter referred to as emission standard plate),
B plate is infrared receiver PCBA test board (hereinafter referred to as receiving test board).
1, measurement jig inputs control signal to emission standard plate;
2, the RF transmitter of emission standard plate sends infrared letter to the infrared remote receiver receiving test board
Number;
3, after reception test board receives this infrared signal, an analogue signal is exported to measurement jig;
4, measurement jig this analogue signal is amplified, Filtering Processing;
5, the signal magnitude of the analogue signal after measurement jig reading process;
6, this signal magnitude is contrasted with standard value (threshold value), find that the value of this signal magnitude is than mark
Quasi-value is big, then this reception test board function is normal;
If the value of 7 these signal magnitude is less than standard value, then this reception test board dysfunction;
8, when measurement jig finds this reception test board dysfunction, the red LED on measurement jig
Lamp flicker is reported to the police, and the buzzer of measurement jig sends alarm sound;
9, one sampling resistor of series connection on the power path of this reception test board, obtains the electricity of sampling resistor
Pressure value;
10, this magnitude of voltage obtains current value divided by known Proportional coefficient K;
If 11 these current values are close to known normal current value, then show the circuit of this reception test board even
Connect and there is not out short circuit problem;
If 12 these current values are close to 0, then show that the circuit of this reception test board exists open circuit;
If 13 these current values are close to infinitely great, then show that the circuit of this reception test board exists short circuit.
Essentially describe the method for testing of infrared touch panel PCBA above, below mainly infrared ray is touched
The measurement jig touching screen PCBA is described in detail, and refers to Fig. 3, embodiment of the present invention middle infrared (Mid-IR)
One embodiment of the measurement jig of touch screen PCBA includes:
Input control module 301, for inputting control signal to A plate so that infrared letter launched by this A plate
Number;
Signal acquisition module 302, for getting analogue signal from B plate, this analogue signal is by this B
Plate exports after receiving this infrared signal;
Judging treatmenting module 303, for judging whether this analogue signal meets default condition, the most then
Test board function in this A plate and B plate is normal, if it is not, then this test board dysfunction;
It should be noted that a plate is test board in this A plate and B plate, another plate is on-gauge plate.
In the present embodiment, first, input control module 301 inputs control signal to A plate so that this A
Infrared signal launched by plate;Then, signal acquisition module 302 gets analogue signal from B plate, this mould
Intend exporting after signal is received this infrared signal by this B plate;Finally, it is judged that processing module 303 judges should
Whether analogue signal meets default condition, the most then the test board function in this A plate and B plate is normal,
If it is not, then this test board dysfunction;In this A plate and B plate, a plate is test board, and another plate is
On-gauge plate.In the present embodiment, individually one piece of test board can be tested, learn this test board
Function is the most normal, it is possible to exactly position infrared touch panel PCBA trouble point, test process without
Need mounting or dismounting, simple to operate, improve test and the efficiency produced.
For ease of understanding, the measurement jig to the infrared touch panel PCBA in the embodiment of the present invention below
It is described in detail, refers to Fig. 4, the measurement jig of embodiment of the present invention middle infrared (Mid-IR) touch screen PCBA
Another embodiment includes:
Input control module 401, for inputting control signal to A plate so that infrared letter launched by this A plate
Number;
Signal acquisition module 402, for getting analogue signal from B plate, this analogue signal is by this B
Plate exports after receiving this infrared signal;
Judging treatmenting module 403, for judging whether this analogue signal meets default condition, the most then
Test board function in this A plate and B plate is normal, if it is not, then this test board dysfunction;
It should be noted that a plate is test board in this A plate and B plate, another plate is on-gauge plate.
The measurement jig of the present embodiment middle infrared (Mid-IR) touch screen PCBA can also include:
Detection current module 404, for by obtaining the sampling of series connection on the power path of PCBA circuit board
The voltage of resistance, detects the electric current of this PCBA circuit board;
Open short-circuit analysis module 405, for learning that opening of this PCBA circuit board is short by the size of this electric current
Road;
This PCBA circuit board is the test board in this A plate and this B plate.
In the present embodiment, judging treatmenting module 403 specifically includes:
Amplify filter unit 4031, for this analogue signal is amplified and/or Filtering Processing;
Read unit 4032, for reading this analogue signal after this amplification filter unit 4031 processes
Signal magnitude;
Discriminatory analysis unit 4033, for judging whether this signal magnitude exceedes default threshold value, if so,
Then the test board function in this A plate and B plate is normal, if it is not, then this test board dysfunction.
The measurement jig of the present embodiment middle infrared (Mid-IR) touch screen PCBA can also include:
Mode selection module 406, for selecting the test pattern of this measurement jig to be test according to level switching
Pattern one or test pattern two;
This test pattern one is infrared emission PCBA test board for this A plate, and this B plate is infrared receiver
PCBA on-gauge plate;
This test pattern two is infrared emission PCBA on-gauge plate for this A plate, and this B plate is infrared receiver
PCBA test board.
The measurement jig of the present embodiment middle infrared (Mid-IR) touch screen PCBA can also include:
Alarm module 407, for, during when test board dysfunction in this A plate and B plate, performing warning
Operation;
This warning operation can be warning light flicker, buzzer sounding or send warning message to far-end.
In the present embodiment, the input control module 401 of the measurement jig of infrared touch panel PCBA to
A plate input control signal so that infrared signal launched by this A plate, after B plate receives this infrared signal
Output analogue signal, then, signal acquisition module 402 gets this analogue signal from B plate and gives
Judging treatmenting module 403, next, it is determined that the amplification filter unit 4031 of processing module 403 is to this simulation
Signal is amplified and/or Filtering Processing, reads unit 4032 and reads through this amplification filter unit 4031
The signal magnitude of this analogue signal after process, it is judged that analytic unit 4033 judges whether this signal magnitude surpasses
Cross the threshold value preset, the most then the test board function in this A plate and B plate is normal, if it is not, then this survey
Test plate (panel) dysfunction.In the present embodiment, also include mode selection module 406, this mode selection module
406 according to level switching select this measurement jig test pattern be test pattern one or test pattern two, can
So that the measurement jig of infrared touch panel PCBA is by selecting different test patterns to send out infrared ray
Penetrate PCBA test board and infrared receiver PCBA test board carries out selecting test, improve measurement jig
Compatibility and motility.Further, when test board dysfunction in this A plate and B plate,
Alarm module 407 performs operation of reporting to the police, so that measurement jig is humanized, notifies test in time
There is defective products in personnel's test board.
Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches
The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment
Process, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit,
Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a list
In unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ software function list
The form of unit realizes.
If described integrated unit realizes and as independent production marketing using the form of SFU software functional unit
Or when using, can be stored in a computer read/write memory medium.Based on such understanding, this
The part that the most in other words prior art contributed of technical scheme of invention or this technical scheme
Completely or partially can embody with the form of software product, this computer software product is stored in one
In storage medium, including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention
Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. the various media that can store program code.
The above, above example only in order to technical scheme to be described, is not intended to limit;
Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should
Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent;And these amendments or replacement, do not make appropriate technical solution
Essence depart from various embodiments of the present invention technical scheme spirit and scope.
Claims (8)
1. the method for testing of an infrared touch panel PCBA, it is characterised in that including:
Control signal is inputted so that infrared signal launched by described A plate to A plate;
Getting analogue signal from B plate, described analogue signal is received described infrared letter by described B plate
Export after number;
Judge whether described analogue signal meets default condition, in the most described A plate and B plate
Test board function is normal, if it is not, the most described test board dysfunction;
Described A plate is infrared emission PCBA test board, and described B plate is infrared receiver PCBA on-gauge plate;
Or, described A plate is infrared emission PCBA on-gauge plate, and described B plate is infrared receiver PCBA test board.
Method the most according to claim 1, it is characterised in that described method also includes:
By obtaining the voltage of the sampling resistor of series connection on the power path of PCBA circuit board, detect institute
State the electric current of PCBA circuit board;
Short circuit is opened by what the size of described electric current learnt described PCBA circuit board;
Described PCBA circuit board is the test board in described A plate and described B plate.
Method the most according to claim 1, it is characterised in that judge whether described analogue signal accords with
Close the condition preset to specifically include:
Described analogue signal is amplified and/or Filtering Processing;
The signal magnitude of described analogue signal after reading process;
Judge whether described signal magnitude exceedes default threshold value.
The most according to the method in any one of claims 1 to 3, it is characterised in that described method is also
Including:
When test board dysfunction in described A plate and B plate, perform operation of reporting to the police;
Described warning operation is warning light flicker, buzzer sounding or sends warning message to far-end.
5. the measurement jig of an infrared touch panel PCBA, it is characterised in that including:
Input control module, for inputting control signal to A plate so that infrared signal launched by described A plate;
Signal acquisition module, for getting analogue signal from B plate, described analogue signal is by described B
Plate exports after receiving described infrared signal;
Judging treatmenting module, for judging whether described analogue signal meets default condition, the most then
Test board function in described A plate and B plate is normal, if it is not, the most described test board dysfunction;
In described A plate and B plate, a plate is test board, and another plate is on-gauge plate;
Described measurement jig also includes:
Mode selection module, for selecting the test pattern of described measurement jig to be test according to level switching
Pattern one or test pattern two;
Described test pattern one is infrared emission PCBA test board for described A plate, and described B plate is infrared
Receive PCBA on-gauge plate;
Described test pattern two is infrared emission PCBA on-gauge plate for described A plate, and described B plate is infrared
Receive PCBA test board.
Measurement jig the most according to claim 5, it is characterised in that described measurement jig also includes:
Detection current module, for the sampling electricity by obtaining series connection on the power path of PCBA circuit board
The voltage of resistance, detects the electric current of described PCBA circuit board;
Open short-circuit analysis module, for learning opening of described PCBA circuit board by the size of described electric current
Short circuit;
Described PCBA circuit board is the test board in described A plate and described B plate.
Measurement jig the most according to claim 5, it is characterised in that described judging treatmenting module has
Body includes:
Amplify filter unit, for described analogue signal is amplified and/or Filtering Processing;
Read unit, for reading the letter of the described analogue signal after described amplification filter unit processes
Number size;
Discriminatory analysis unit, for judging whether described signal magnitude exceedes default threshold value, the most then
Test board function in described A plate and B plate is normal, if it is not, the most described test board dysfunction.
8. according to the measurement jig according to any one of claim 5 to 7, it is characterised in that described survey
Examination tool also includes:
Alarm module, for during when test board dysfunction in described A plate and B plate, performs the behaviour that reports to the police
Make;
Described warning operation is warning light flicker, buzzer sounding or sends warning message to far-end.
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CN113539349B (en) * | 2021-07-23 | 2024-05-28 | 曙光信息产业股份有限公司 | Test substrate, LLCR measurement method and test substrate test method |
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