CN104181458B - The detection method and detection means of a kind of PCBA board - Google Patents
The detection method and detection means of a kind of PCBA board Download PDFInfo
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- CN104181458B CN104181458B CN201410425065.0A CN201410425065A CN104181458B CN 104181458 B CN104181458 B CN 104181458B CN 201410425065 A CN201410425065 A CN 201410425065A CN 104181458 B CN104181458 B CN 104181458B
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Abstract
The present invention discloses the detection method and detection means that a kind of infrared tube touches the PCBA board of frame, detected by this method, short circuit and the open circuit conditions of PCBA board internal module can first be detected, and some internal module static state are not turned in PCBA board, when signal cannot be continuously transmitted, detection means can be not turned on module by triggering PCBA board internal stationary to be measured makes to be formed path so as to realize the purpose of detection short circuit and open circuit.In the detection process of this method, additionally it is possible to detect short circuit or path, the company's of the occurring in that tin such as in product processing between PCBA board inside contact pin pin to be measured and contact pin pin, cause some to form path, influence the function of PCBA board.
Description
Technical field
Detection method and the inspection of the PCBA board of frame are touched the present invention relates to field of circuit boards, more particularly to a kind of infrared tube
Survey device.
Background technology
Existing infrared tube is touched in frame PCBA making, general infrared tube touch frame PCBA is entered using encapsulation technology
Row encapsulation.But uprised as infrared tube touches frame PCBA integration degrees, detect that its quality is also increasingly difficult to.
Present detection mode is to rely on artificial range estimation, or does not check, is detected when when rear end being assembled by functional test,
, easily there is missing inspection in this detection mode inefficiency, defective products is mixed into finished product, have an impact to product quality.For
If there is can not be by follow-up Function detection by bad detection if short circuit or breaking phenomena for the address wire of PCBA
Out, this can have an impact to the effect of product, but can not possibly be very fine during production test test effect, therefore missing inspection probability
It is very big.
The content of the invention
The embodiment of the present invention provides the detection method and detection means that a kind of infrared tube touches the PCBA board of frame, including：
Step one：Detection means detects to the contact pin pin of PCBA board to be measured, judges the detection mode of contact pin pin
To be directly connected to detect or be indirectly connected with detection, and detect to be measured by being directly connected to detection mode or being indirectly connected with detection mode
The all of contact pin pin of PCBA board；
Step 2：When detection means detects the contact pin pin of module to be checked using detection mode is directly connected to, detection dress
Put and be input into the first pulse signal to the input contact pin pin of the module to be checked, detection means is judged in the module to be checked
Can output end contact pin pin receive the first pulse signal；
Step 3：Detection means receives the first pulse signal in the output end contact pin pin of the module to be checked, while
Whether the contact pin pin not electrically connected with the module to be checked on detection means decision logic receives the first pulse signal；
Step 4：Detection means receives the first pulse signal in the output end contact pin pin of the module to be checked, while
Detection means is not detected by the first pulse signal of the contact pin pin not electrically connected with the module to be checked in logic, described to be checked
Module meets the requirements, return to step one；
Step 5：Detection means receives the first pulse signal in the output contact pin pin of the module to be checked, while inspection
The first pulse signal that device receives the contact pin pin not electrically connected with the module to be checked in logic is surveyed, PCBA board to be measured
There is short circuit between inside contact pin pin, the contact pin pin of short circuit is recorded and stored by detection means, return to step one；
Step 6：Detection mode is directly connected to when detection means detects that the contact pin pin of module to be checked is used according to step 2
When, the first pulse signal is input into the input contact pin pin of the module to be checked, detection means is defeated the module to be checked
Go out to hold contact pin pin not receive the first pulse signal, the inside modules to be checked have open circuit, and detection device records simultaneously store institute
State the information of module to be measured, return to step one；
Step 7：Detection mode is indirectly connected with when detection means detects that the contact pin pin of module to be checked is used according to step one
When, detection means is input into the second pulse signal to the input contact pin pin of the module to be checked indirectly, while to described indirect
Module to be checked is input into start pulse signal, triggers the module to be checked indirectly, makes the defeated of the module contact pin pin to be checked indirectly
Enter end and output end conducting, can detection means receive second according to the output end contact pin pin in the module to be checked indirectly
Pulse signal, judges whether the module to be checked indirectly meets the requirements, and the testing result of the module to be checked indirectly is recorded
And store.
Preferably, also include before the step one：PCBA board to be measured is docked with detection means, detection means reads and treats
PCBA board parameter is surveyed, the type of PCBA board to be measured is determined；
Determining the type of the PCBA board to be measured includes transmitting PCBA board and receives PCBA board.
Preferably, detection means judges according to PCBA board to be measured is arranged on the sensing module that docks of detection means docking section
Whether PCBA board to be measured docks.
Preferably, the step 7 method also includes：
Detection means receives the first pulse signal in the output end contact pin pin of the module to be checked indirectly, while detection
Whether the contact pin pin on device decision logic not with other modules that module to be checked is electrically connected indirectly receives the second arteries and veins
Rush signal；
Detection means receives the second pulse signal in the output end contact pin pin of the module to be checked indirectly, while detection
Device does not receive the second pulse signal of the contact pin pin not electrically connected with the indirect module to be checked in logic, described indirect
Module to be checked is met the requirements, and the result of detection is recorded and stored；
Detection means receives the second pulse signal in the output contact pin pin of the module to be checked indirectly, while detecting dress
The second pulse signal for receiving the contact pin pin not electrically connected with the module to be checked in logic is put, indirect PCBA board to be measured
There is short circuit between contact pin pin, detection device records simultaneously store the letter that there is short circuit between contact pin pin to be measured indirectly
Breath.
Preferably, the step 7 method also includes：
When detection means is input into the second pulse signal to the input contact pin pin of the module to be checked indirectly, while to institute
Module input start pulse signal to be checked indirectly is stated, the module to be checked indirectly is triggered, draws the module contact pin to be checked indirectly
The input of pin is turned on output end, and detection means does not receive second in the output end contact pin pin of the module to be checked indirectly
Pulse signal, the inside modules to be checked indirectly have an open circuit, and detection device records simultaneously store the information of the module to be measured indirectly.
Preferably, include after the step 7：
After detection means detection completes the contact pin pin of PCBA board to be measured, according to the type of PCBA board to be measured, select and treat
The standard PCBA board that PCBA board is engaged is surveyed, the infrared emission in PCBA board to be measured is detected by simulating normal PCBA board work
Whether pipe meets the requirements with the infra-red intensity and angle of infrared receiving tube；
PCBA board function information to be measured after by detection is recorded and stored.
Preferably, when PCBA board to be measured is for transmitting PCBA board to be measured, standard PCBA board receives PCBA board using standard；
The transmitting PCBA board to be measured sends infrared ray under the control of detection means by infrared transmitting tube to be measured；
The standard of detection means receives PCBA board reception infrared transmitting tube to be measured and sends infrared ray, detects infrared emission to be measured
Pipe sends ultrared intensity and whether angle meets the requirements, and records storage.
Preferably, when PCBA board to be measured is for reception PCBA board to be measured, standard PCBA board uses standard emission PCBA board；
The standard emission PCBA board sends standard infrared ray, the reception PCBA board to be measured under the control of detection means
Receive the standard emission PCBA board and send standard IR line；
Whether detection means meets the requirements according to the intensity and angle that reception PCBA board to be measured receives standard IR line, and remembers
Record storage.
Preferably, also include after the step 7：
Detection means passes through display module by the quality information display output of PCBA board to be measured；
When PCBA board to be measured does not meet quality requirement, detection means starts audible alarm module, points out user.
A kind of detection means, including：For being connected with PCBA board to be measured and after PCBA board to be measured connection to the micro-control
Device processed sends the docking sensing module of signal, and the standard PCBA for detecting PCBA board function to be measured is engaged with PCBA board to be measured
Plate, for the display module of the quality information of display output PCBA board to be measured, when not meeting quality requirement for PCBA board to be measured
The audible alarm module of user is pointed out, for setting the parameter setting module of PCBA board standard information and described right for receiving
The signal of sensing module is connect, and the contact pin of pulse signal and start pulse signal test PCBA board to be measured is sent in detection process
Pin, and PCBA board matter to be measured can be obtained by the parameter of PCBA board relatively more to be measured and the parameter setting module canonical parameter
The microcontroller of amount information；
The display module is electrically connected with the microcontroller, is treated for the control display output according to the microcontroller
Survey the quality information of PCBA board；
The audible alarm module is electrically connected with the microcontroller, to be measured for the control according to the microcontroller
PCBA board points out user when not meeting quality requirement；
The parameter setting module is electrically connected with the microcontroller, for the microcontroller according to the parameter setting
The PCBA board standard information of module setting relatively draws PCBA board quality information to be measured；
The microcontroller is additionally operable to determine that the PCBA board to be measured is transmitting PCBA board, or receives PCBA board；
The PCBA board standard information that the microcontroller is additionally operable to be set according to the parameter setting module distinguishes to be measured
The contact pin pin of PCBA board internal module detects or is indirectly connected with detection by being directly connected to.
As can be seen from the above technical solutions, the present invention has advantages below：
Infrared tube touches frame and is made up of substantial amounts of independent PCBA board, and its plug connector is more and pin of plug connector is also more, is
Ensure the efficiency and yield of production, check before final assembly the quality of PCBA board to greatly promote using the method for the present invention
The production efficiency and quality of whole machine.
Detected by this method, can first detect short circuit and the open circuit conditions of PCBA board internal module, and in PCBA
Plate some internal module static state are not turned on, and when signal cannot be continuously transmitted, detection means can be by triggering in PCBA board to be measured
Portion's static state is not turned on module to be made to form purpose of the path so as to realize detection short circuit and open circuit.
In the detection process of this method, additionally it is possible to detect between PCBA board inside contact pin pin to be measured and contact pin pin
Short circuit or path, the company's of occurring in that tin such as in product processing, cause some to form path, the work(of influence PCBA board
Energy.This method from the module input input pulse signal of PCBA board to be measured, while detecting the PCBA board to be measured non-output of the module
Whether the contact pin pin at end receives input pulse signal.So serve detection PCBA board inside contact pin pin to be measured and contact pin
The function of short circuit or path between pin.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, will make simple to the accompanying drawing to be used needed for description below
Introduce on ground, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill
For personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The overall flow figure of the detection method of the PCBA board that Fig. 1 is provided for the present invention；
The PCBA board Function detection flow chart of the detection method of the PCBA board that Fig. 2 is provided for the present invention；
The radiation schematic diagram of the infrared tube of the PCBA board that Fig. 3 is provided for the present invention；
The detection means schematic diagram that Fig. 4 is provided for the present invention.
Specific embodiment
To enable that the purpose of the present invention, feature, advantage are more obvious and understandable, below will be with specific implementation
Example and accompanying drawing, the technical scheme to present invention protection are clearly and completely described, it is clear that the embodiments described below are only
Only it is a part of embodiment of the invention, and not all embodiment.Based on the embodiment in this patent, ordinary skill people
All other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of this patent protection.
The present embodiment provides the detection method that a kind of infrared tube touches the PCBA board of frame, refers to shown in Fig. 1,
S11：Whether the docking sensing module sensing of detection means has PCBA board to be measured to access；
When docking sensing module sensing has PCBA board to be measured to access, the signal that will have PCBA board to be measured to access is transmitted to detection
The microcontroller of device.
S12：The microcontroller of detection means reads PCBA board parameter to be measured, determines the type of PCBA board to be measured；
In this method embodiment, the type of PCBA board to be measured includes transmitting PCBA board and receives PCBA board, before detection,
Microcontroller needs according to transmitting PCBA board and receives the type that the respective parameter attribute of PCBA board distinguishes PCBA board to be measured, so
It is easy to determine follow-up detection mode.Here microcontroller distinguish the type of PCBA board to be measured be before detection according to transmitting PCBA
Plate and the reception respective parameter attribute of PCBA board pre-set, and microcontroller compares according to PCBA board parameter to be measured with parameter preset
The type of PCBA board to be measured can be drawn.
S13：After determining the type of PCBA board to be measured, detection means starts detection.
In this method embodiment, all contact pin pins of PCBA board to be measured are detected first, when owning for PCBA board to be measured
All after the completion of detection, detection means carries out Function detection to contact pin pin to PCBA board to be measured again.
S14：Detection is carried out to the contact pin pin of PCBA board to be measured for detection means until all of contact pin pin is all detected
Complete.
S15：Detection means detects that the contact pin pin of PCBA board to be measured is by the defeated of the modules in PCBA board to be measured
Enter end and send pulse signal, whether the output end according to corresponding module receives the pulse signal that sends or in other modules
It is detection foundation that contact pin pin receives the pulse signal for sending.Due to the work of PCBA board internal logic relation to be measured and module
Mode, in the state of not triggering, pulse signal cannot pass through some modules, thus have influence on testing result.
In this method embodiment, detection means firstly the need of the detection mode for judging contact pin pin for be directly connected to detection
Or detection is indirectly connected with, and detect that PCBA board to be measured is all of slotting by being directly connected to detection mode or being indirectly connected with detection mode
Pin pin.
Specifically, the detection mode for judging contact pin pin of detection means is to be directly connected to detect or be indirectly connected with detection,
By presetting the parameter of PCBA board module to be measured and connected mode in detection means, the microcontroller of such detection means according to
Default parameter judges to take to be directly connected to detect or be indirectly connected with detection mode.
S17：It is directly connected to detection mode：Detection is directly connected to when detection means detects that the contact pin pin of module to be checked is used
During mode, detection means is input into the first pulse signal to the input contact pin pin of the module to be checked, and detection means judges
Can the output end contact pin pin of the module to be checked receive the first pulse signal；
Detection means receives the first pulse signal in the output end contact pin pin of the module to be checked, while detection means
Whether the contact pin pin not electrically connected with the module to be checked on decision logic receives the first pulse signal；
In this method embodiment, the contact pin pin not electrically connected with the module to be checked in logic is referred to be measured
By having difference in functionality and the module of structural relation to constitute one by one, each module has independence for the realization of function in PCBA board
Structure annexation, be that modules play respective effect only in the whole function of realizing PCBA board to be measured.In detection
, it is necessary to the module of PCBA board to be measured is broken the whole up into parts during contact pin pin, individually detect whether the quality of each module meets the requirements.
Here refer in logic detection process, module is considered as a single unit to detect, such as sends infrared module, receive
Infrared module etc..
In this method embodiment, the quality of the single module for detecting PCBA board to be measured is not only, in addition it is also necessary to detect to be measured
Short circuit or path between PCBA board inside contact pin pin and contact pin pin.Specifically detect that PCBA board inside contact pin to be measured is drawn
Short circuit or path, the company's of occurring in that tin such as in product processing between pin and contact pin pin, cause some to be formed logical
Road, influences the function of PCBA board.This method is from the module input input pulse signal of PCBA board to be measured, while detection is to be measured
Whether the contact pin pin of the PCBA board module non-corresponding output end receives input pulse signal.So serve detection to be measured
The function of short circuit or path between PCBA board inside contact pin pin and contact pin pin.
In this method embodiment, detection means receives the first pulse in the output end contact pin pin of the module to be checked
Signal, while detection means is not detected by the first pulse letter of the contact pin pin not electrically connected with the module to be checked in logic
Number, the module to be checked meets the requirements, and continues next module detection；
In this method embodiment, detection means receives the first pulse letter in the output contact pin pin of the module to be checked
Number, while detection means receives the first pulse signal of the contact pin pin not electrically connected with the module to be checked in logic, treat
Survey PCBA board inside contact pin pin between exist short circuit, detection device records and store in the presence of short circuit contact pin pin letter
, there is short circuit in breath, detection device records simultaneously store the information, knot to be detected here between the inside contact pin pin of PCBA board to be measured
Collected after beam and collect display, do not do individually display here, the system resource of detection means can be saved.
In this method embodiment, detection mode is directly connected to when detection means detects that the contact pin pin of module to be checked is used
When, the first pulse signal is input into the input contact pin pin of the module to be checked, detection means is defeated the module to be checked
Go out to hold contact pin pin not receive the first pulse signal, the inside modules to be checked have open circuit, and detection device records simultaneously store institute
State the information of module to be measured.
S16：It is indirectly connected with detection mode：Input contact pin pin input the from detection means to the module to be checked indirectly
Two pulse signals, while to the module input start pulse signal indirectly to be checked, triggering the module to be checked indirectly, make described
The input of indirect module contact pin pin to be checked is turned on output end, and detection means is according to the output in the module to be checked indirectly
Between can end contact pin pin receive the second pulse signal, judge whether the module to be checked indirectly meets the requirements, and general is described
The detection structure of reception inspection module is recorded and stored.
In embodiment in this law, the first pulse signal is meant that using when being directly connected to detection mode, is treated to described
The input contact pin pin for examining module is input into the first pulse signal, output end contact pin pin of the detection means in the module to be checked
Judge whether to receive the first pulse signal.
And the second pulse signal is meant that, using when being indirectly connected with detection mode, detection means is to the mould to be checked indirectly
The input contact pin pin of block is input into the second pulse signal, and detection means judges in the output end contact pin pin of the module to be checked
Whether second pulse signal is received.
Here first and second are intended merely to distinguish pulse signal, prevent ambiguity, and pulse signals do not do rising limit
It is fixed.In present specification, first or second etc. of the introducing of other parts technical characteristic, equally it is to play differentiation technical characteristic
Ambiguity is prevented, restriction is not made to technical characteristic.
In this method embodiment, the first pulse signal that detection mode is directly connected to for detecting can be 1 microsecond, or
2 microseconds, or 5 microsecond pulses, the specific burst length do not limit here.
For detecting that it equally can be 1 microsecond to be indirectly connected with the second pulse signal of detection mode, or 2 microseconds, or 5 microseconds
Pulse, the specific burst length does not limit here.But in order to distinguish the second pulse signal and the first pulse signal, can adopt
The different burst lengths are taken, such as the first pulse signal is 2 microsecond pulses, the second pulse signal is 5 microsecond pulses.It is being indirectly connected with
Input start pulse signal is needed in detection mode just can turn on the input of indirect module contact pin pin to be checked and output end.
The output form of start pulse signal here is the trigger condition according to indirect module to be checked to be set.For example：It is indirectly to be checked
Proximity switch needs to receive five start pulse signal triggering and conductings of 6 microseconds in module, then detection means first send five it is 6 micro-
The start pulse signal of second turns on proximity switch, and then turns on inside modules to be checked indirectly, and detection means sends second again
The quality of the indirect module to be checked of pulsed test signal.
In this method embodiment, detection means receives first in the output end contact pin pin of the module to be checked indirectly
Pulse signal, while the contact pin pin of other modules not electrically connected with the indirect module to be checked on detection means decision logic
Whether second pulse signal is received；
Detection means receives the second pulse signal in the output end contact pin pin of the module to be checked indirectly, while detection
Device does not receive the second pulse signal of the contact pin pin not electrically connected with the indirect module to be checked in logic, described indirect
Module to be checked is met the requirements, and the result of detection is recorded and stored；
Detection means receives the second pulse signal in the output contact pin pin of the module to be checked indirectly, while detecting dress
The second pulse signal for receiving the contact pin pin not electrically connected with the module to be checked in logic is put, indirect PCBA board to be measured
There is short circuit between contact pin pin, detection device records simultaneously store the letter that there is short circuit between contact pin pin to be measured indirectly
Breath.
When detection means is input into the second pulse signal to the input contact pin pin of the module to be checked indirectly, while to institute
Module input start pulse signal to be checked indirectly is stated, the module to be checked indirectly is triggered, draws the module contact pin to be checked indirectly
The input of pin is turned on output end, and detection means does not receive second in the output end contact pin pin of the module to be checked indirectly
Pulse signal, the inside modules to be checked indirectly have an open circuit, and detection device records simultaneously store the information of the module to be measured indirectly.
In this method embodiment, detection mode is specifically first directly connected to, is still indirectly connected with detection mode here not
Limit, performed according to the default detection program of detection means.
S18:After detection means detection completes the contact pin pin of PCBA board to be measured, detection means using standard PCBA board with treat
Survey PCBA board to be coordinated, complete the Function detection of PCBA board to be measured, and the result of detection is recorded and stored.
S19：Complete after above-mentioned detection program, it is necessary to judge whether PCBA board to be measured conforms to quality requirements.
S20：If PCBA board to be measured conforms to quality requirements, detection means passes through display module by the quality of PCBA board to be measured
Presentation of information is exported.
S21：When PCBA board to be measured does not meet quality requirement, the quality information of PCBA board to be measured is shown, detection means is opened
Dynamic audible alarm module, points out user, and the PCBA board to be measured has mass defect.
So whole testing process terminates, and detection means returns to just beginning and end detection state.
In this method embodiment, also including referring to shown in Fig. 2, the Function detection of PCBA board to be measured is specifically included：
PCBA board to be measured is determined for infrared transmitting tube or infrared receiving tube, the standard that selection is engaged with PCBA board to be measured
PCBA board, works strong with the infrared ray of infrared receiving tube to check the infrared transmitting tube in PCBA board by simulating normal PCBA board
Whether degree and angle meet the requirements.
When PCBA board to be measured is for transmitting PCBA board to be measured, standard PCBA board receives PCBA board using standard；It is described to be measured
Transmitting PCBA board sends infrared ray under the control of detection means by infrared transmitting tube to be measured；The standard of detection means receives PCBA
Plate receives infrared transmitting tube to be measured and sends infrared ray, detects that infrared transmitting tube to be measured sends ultrared intensity and whether angle accords with
Close and require, and record storage.
When PCBA board to be measured is for reception PCBA board to be measured, standard PCBA board uses standard emission PCBA board；The standard
Transmitting PCBA board sends standard infrared ray under the control of detection means, and the reception PCBA board to be measured receives the standard emission
PCBA board sends standard IR line；Detection means according to it is to be measured reception PCBA board receive standard IR line intensity and angle whether
Meet the requirements, and record storage.
In this method embodiment, the principal functional parame-ters of PCBA board to be measured are infra-red intensity and angle, specific inspection
Survey method is referred to shown in Fig. 3, and infrared transmitting tube 41 sends infrared ray, infrared receiving tube receiving infrared-ray.Infra-red intensity is
Power according to infrared radiation measures infra-red intensity.
The detection of infrared angle is that have a range of infrared ray according to infrared emission tube transmitting, at certain angle
Can ensure ultrared intensity in degree, will decay therewith when beyond the ultrared intensity of certain angle scope, attenuation degree
When reaching infra-red intensity critical value, this angle is exactly the angle of infrared detection.The angle and standard angle detected with this
Degree compares the quality condition that can be derived that infrared angle parameter.
In the present invention, there is provided a kind of detection means, refer to shown in Fig. 4, including：For being connected with PCBA board to be measured 11
And the docking sensing module 2 of signal is sent to the microcontroller 1 after the connection of PCBA board to be measured 11, with the phase of PCBA board to be measured 11
Coordinate the standard PCBA board 12 for detecting the function of PCBA board to be measured 11, for the quality information of display output PCBA board 11 to be measured
Display module 5, the audible alarm module 4 of prompting user when not meeting quality requirement for PCBA board to be measured 11, for setting
The parameter setting module 3 of PCBA board standard information and the signal for receiving the docking sensing module 2, and in detection process
In send the contact pin pin that pulse signal and start pulse signal test PCBA board 11 to be measured, and can be by PCBA relatively more to be measured
The parameter of plate 11 obtains the microcontroller 1 of the quality information of PCBA board 11 to be measured with the canonical parameter of the parameter setting module 3；
The display module 5 is electrically connected with the microcontroller 1, for showing defeated according to the control of the microcontroller 1
Go out the quality information of PCBA board to be measured 11；
The audible alarm module 4 is electrically connected with the microcontroller 1, for being treated according to the control of the microcontroller 1
Survey when PCBA board 11 does not meet quality requirement and point out user；
The parameter setting module 3 is electrically connected with the microcontroller 1, for the microcontroller 1 according to the parameter
The PCBA board standard information of the setting of setting module 3 relatively draws the quality information of PCBA board to be measured 11；
The microcontroller 1 is additionally operable to determine that the PCBA board to be measured 11 is transmitting PCBA board, or receives PCBA board；
The PCBA board standard information that the microcontroller 1 is additionally operable to be set according to the parameter setting module 3 distinguishes to be measured
The contact pin pin of the internal module of PCBA board 11 detects or is indirectly connected with detection by being directly connected to.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (9)
1. a kind of detection method of PCBA board, it is characterised in that including：
PCBA board to be measured is docked with detection means, detection means reads PCBA board parameter to be measured, determines the class of PCBA board to be measured
Type, the standard PCBA board that selection is engaged with the PCBA board to be measured is for completing the Function detection to PCBA board to be measured；
Determining the type of the PCBA board to be measured includes transmitting PCBA board and receives PCBA board；
Step one：Detection means detects that the detection mode for judging contact pin pin is straight to the contact pin pin of PCBA board to be measured
Connect connecting detection or be indirectly connected with detection, and PCBA to be measured is detected by being directly connected to detection mode or being indirectly connected with detection mode
The all of contact pin pin of plate；
Step 2：When detection means detects the contact pin pin of module to be checked using detection mode is directly connected to, detection means to
The input contact pin pin of the module to be checked is input into the first pulse signal, and detection means judges the output in the module to be checked
Can end contact pin pin receive the first pulse signal；
Step 3：Detection means receives the first pulse signal in the output end contact pin pin of the module to be checked, while detection
Whether the contact pin pin not electrically connected with the module to be checked on device decision logic receives the first pulse signal；
Step 4：Detection means receives the first pulse signal in the output end contact pin pin of the module to be checked, while detection
Device is not detected by the first pulse signal of the contact pin pin not electrically connected with the module to be checked in logic, the module to be checked
Meet the requirements, return to step one；
Step 5：Detection means receives the first pulse signal in the output contact pin pin of the module to be checked, while detecting dress
Put the first pulse signal for receiving the contact pin pin not electrically connected with the module to be checked in logic, the inside of PCBA board to be measured
There is short circuit between contact pin pin, the contact pin pin of short circuit is recorded and stored by detection means, return to step one；
Step 6：According to step 2 when detection means detects the contact pin pin of module to be checked using detection mode is directly connected to,
The first pulse signal, output end of the detection means in the module to be checked are input into the input contact pin pin of the module to be checked
Contact pin pin does not receive the first pulse signal, and the inside modules to be checked have an open circuit, and detection device records are simultaneously treated described in storing
Examine the information of module, return to step one；
Step 7：According to step one when detection means detects the contact pin pin of module to be checked using detection mode is indirectly connected with,
Detection means is input into the second pulse signal to the input contact pin pin of indirect module to be checked, while to the module to be checked indirectly
Input start pulse signal, trigger it is described indirectly module to be checked, make it is described indirectly module contact pin pin to be checked input with it is defeated
Go out end conducting, can detection means receive the second pulse letter according to the output end contact pin pin in the module to be checked indirectly
Number, judge whether the module to be checked indirectly meets the requirements, and the testing result of the module to be checked indirectly is recorded and stored.
2. the detection method of PCBA board according to claim 1, it is characterised in that
Detection means judges PCBA board to be measured according to PCBA board to be measured is arranged on the sensing module that docks of detection means docking section
Whether dock.
3. the detection method of PCBA board according to claim 1, it is characterised in that
The step 7 method also includes：
Detection means receives the second pulse signal in the output end contact pin pin of the module to be checked indirectly, while detection means
Do not believe with whether the contact pin pin of other modules that module to be checked is electrically connected indirectly receives the second pulse on decision logic
Number；
Detection means receives the second pulse signal in the output end contact pin pin of the module to be checked indirectly, while detection means
The second pulse signal of the contact pin pin not electrically connected with the indirect module to be checked in logic is not received, it is described indirectly to be checked
Module is met the requirements, and the result of detection is recorded and stored；
Detection means receives the second pulse signal in the output contact pin pin of the module to be checked indirectly, while detection means connects
The second pulse signal of the contact pin pin not electrically connected with the module to be checked in logic is received, the contact pin of indirect PCBA board to be measured
Between pin exist short circuit, detection device records and store it is described indirectly PCBA board to be measured contact pin pin between exist short circuit
Information.
4. the detection method of PCBA board according to claim 1, it is characterised in that
The step 7 method also includes：
When detection means is input into the second pulse signal to the input contact pin pin of the module to be checked indirectly, while between described
Reception inspection module input start pulse signal, triggers the module to be checked indirectly, makes the module contact pin pin to be checked indirectly
Input is turned on output end, and detection means does not receive the second pulse in the output end contact pin pin of the module to be checked indirectly
Signal, the inside modules to be checked indirectly have an open circuit, and detection device records simultaneously store the information of the module to be checked indirectly.
5. the detection method of PCBA board according to claim 1, it is characterised in that
Include after the step 7：
After detection means detection completes the contact pin pin of PCBA board to be measured, according to the type of PCBA board to be measured, selection with it is to be measured
The standard PCBA board that PCBA board is engaged, the infrared transmitting tube in PCBA board to be measured is detected by simulating normal PCBA board work
Or whether the infra-red intensity and angle of infrared receiving tube meet the requirements；
PCBA board function information to be measured after by detection is recorded and stored.
6. the detection method of PCBA board according to claim 5, it is characterised in that
When PCBA board to be measured is for transmitting PCBA board to be measured, standard PCBA board receives PCBA board using standard；
The transmitting PCBA board to be measured sends infrared ray under the control of detection means by infrared transmitting tube to be measured；
The standard of detection means receives PCBA board reception infrared transmitting tube to be measured and sends infrared ray, detects infrared transmitting tube hair to be measured
Go out ultrared intensity and whether angle meets the requirements, and record storage.
7. the detection method of PCBA board according to claim 5, it is characterised in that
When PCBA board to be measured is for reception PCBA board to be measured, standard PCBA board uses standard emission PCBA board；
The standard emission PCBA board sends standard infrared ray under the control of detection means, and the reception PCBA board to be measured is received
The standard emission PCBA board sends standard IR line；
Whether detection means meets the requirements according to the intensity and angle that reception PCBA board to be measured receives standard IR line, and records storage
Deposit.
8. the detection method of PCBA board according to claim 1, it is characterised in that
Also include after the step 7：
Detection means passes through display module by the quality information display output of PCBA board to be measured；
When PCBA board to be measured does not meet quality requirement, detection means starts audible alarm module, points out user.
9. a kind of detection means, it is characterised in that including：For be connected with PCBA board to be measured and PCBA board to be measured connection after to
Microcontroller sends the docking sensing module of signal, and the standard for detecting PCBA board function to be measured is engaged with PCBA board to be measured
PCBA board, for the display module of the quality information of display output PCBA board to be measured, not meeting quality for PCBA board to be measured will
The audible alarm module of user is pointed out when asking, for setting the parameter setting module of PCBA board standard information and for receiving
The signal of docking sensing module is stated, and pulse signal and start pulse signal are sent in detection process and test PCBA board to be measured
Contact pin pin, and PCBA to be measured can be obtained by the parameter of PCBA board relatively more to be measured and the parameter setting module canonical parameter
The microcontroller of plate quality information；
The display module is electrically connected with the microcontroller, to be measured for the control display output according to the microcontroller
The quality information of PCBA board；
The audible alarm module is electrically connected with the microcontroller, for the control according to the microcontroller in PCBA to be measured
Plate points out user when not meeting quality requirement；
The parameter setting module is electrically connected with the microcontroller, for the microcontroller according to the parameter setting module
The PCBA board standard information of setting relatively draws PCBA board quality information to be measured；
The microcontroller is additionally operable to determine that the PCBA board to be measured is transmitting PCBA board, or receives PCBA board；
The PCBA board standard information that the microcontroller is additionally operable to be set according to the parameter setting module distinguishes PCBA board to be measured
The contact pin pin of internal module detects or is indirectly connected with detection by being directly connected to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410425065.0A CN104181458B (en) | 2014-08-26 | 2014-08-26 | The detection method and detection means of a kind of PCBA board |
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| CN201410425065.0A CN104181458B (en) | 2014-08-26 | 2014-08-26 | The detection method and detection means of a kind of PCBA board |
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| CN106556794A (en) * | 2016-11-18 | 2017-04-05 | 广州视源电子科技股份有限公司 | Method and apparatus for realizing PCBA board detection |
| CN108037444B (en) * | 2017-12-29 | 2023-12-15 | 广州市中海达测绘仪器有限公司 | GNSS PCBA automatic test system and application method thereof |
| CN109164311A (en) * | 2018-07-13 | 2019-01-08 | 智车优行科技（上海）有限公司 | Fault detection method and device, electronic equipment |
| CN113406477A (en) * | 2021-06-18 | 2021-09-17 | 广州市诺的电子有限公司 | PCBA test method, system, computer equipment and storage medium |
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| US5391993A (en) * | 1994-01-27 | 1995-02-21 | Genrad, Inc. | Capacitive open-circuit test employing threshold determination |
| CN1435695A (en) * | 2002-02-01 | 2003-08-13 | 华为技术有限公司 | Method for testing circuit board interconnction line based on boundary scanning device |
| CN1286282C (en) * | 2002-07-12 | 2006-11-22 | 华为技术有限公司 | Method for processing transparent element in boundary scan interconnection test |
| KR100734290B1 (en) * | 2005-11-28 | 2007-07-02 | 삼성전자주식회사 | Film type semiconductor package including test pad with common output channel and method thereof, test device and semiconductor device including pattern with common test channel and method thereof |
| CN102209902A (en) * | 2008-11-14 | 2011-10-05 | 泰拉丁公司 | Method and apparatus for testing electrical connections on a printed circuit board |
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