CN110514949A - Detection method, device, storage medium and the processor of printed circuit board assembly - Google Patents
Detection method, device, storage medium and the processor of printed circuit board assembly Download PDFInfo
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- CN110514949A CN110514949A CN201910848899.5A CN201910848899A CN110514949A CN 110514949 A CN110514949 A CN 110514949A CN 201910848899 A CN201910848899 A CN 201910848899A CN 110514949 A CN110514949 A CN 110514949A
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- wiring board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2805—Bare printed circuit boards
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
This application provides a kind of detection method of printed circuit board assembly, device, storage medium and processors.The detection method of the printed wiring board component includes: to apply detection voltage to printed wiring board component to be measured；The voltage for detecting each measuring point to be checked of printed wiring board component to be measured, obtains multiple voltage signals, wherein voltage signal and measuring point to be checked correspond, and measuring point to be checked is the pin of the element of printed wiring board component to be measured；In the case where voltage difference is greater than the first threshold of corresponding measuring point to be checked, abnormal signal is issued, wherein the absolute value of the voltage difference of voltage difference, voltage difference are the difference of voltage signal and the predetermined voltage signals of corresponding measuring point to be checked.The detection method of the printed wiring board component can detect the exception of each measuring point to be checked in time, and then avoid printed wiring board component damage during the test.
Description
Technical field
This application involves printed circuit board detection technique fields, in particular to a kind of inspection of printed circuit board assembly
Survey method, apparatus, storage medium and processor.
Background technique
Online ICT+FCT detector is the test equipment of hyundai electronics enterprise indispensability, and the detector use scope is wide and surveys
It is high to measure accuracy, it is clear to being indicated the problem of detecting, even if the horizontal general worker of electronic technology checks printed circuit board group
The problem of part (PCBA), is also very easy to, and online ICT detector has controller on-line testing, scans bar code, test online
Result judgement and mark, the output of qualified and substandard product automatic branching and the continuous output at least functions such as 2 pieces of on-gauge plates.
Online ICT+FCT detector is mainly that the test point passed through in test probe contact printed circuit board (pcb board) is come
The route of printed circuit board assembly (PCBA) is detected, detection project is broadly divided into the fault tests such as open circuit and short circuit.Circuit board into
When row detection, if certain element functions are problematic or loading error, it is possible to will lead to and occur circuit board during the test
The problems such as damage, so as to cause that can not be detected in time to circuit board.
Disclosed information above is used only to reinforce the background technique to technology described herein in the background section
Understanding may include therefore certain information in background technique, these information are to those skilled in the art and not formed
The home known prior art.
Summary of the invention
The main purpose of the application be to provide a kind of detection method of printed circuit board assembly, device, storage medium and
Processor, to solve the problems, such as in the prior art during the test since certain element functions or loading error cause to damage
The problem of printed circuit board assembly.
To achieve the goals above, according to the one aspect of the application, a kind of detection of printed wiring board component is provided
Method, comprising: detection voltage is applied to printed wiring board component to be measured；Detect each to be checked of the printed wiring board component to be measured
The voltage of measuring point obtains multiple voltage signals, wherein the voltage signal and the measuring point to be checked correspond, described to be checked
Measuring point is the pin of the element of the printed wiring board component to be measured；It is greater than the first of the corresponding measuring point to be checked in voltage difference
In the case where threshold value, abnormal signal is issued, wherein the voltage difference is the absolute value of voltage difference, and the voltage difference is institute
State the difference of voltage signal with the predetermined voltage signals of the corresponding measuring point to be checked.
Further, the detection method further include: obtain the predetermined voltage signals, obtain the predetermined voltage signals
Process include: that the detection voltage is applied to reference printed wiring board component, wherein it is described to be with reference to printed wiring board component
Assemble qualified printed wiring board component；The voltage for detecting each test point with reference to printed wiring board component, obtains multiple
The predetermined voltage signals, wherein the predetermined voltage signals and the test point correspond.
Further, the abnormal signal includes control signal, is greater than the first of the corresponding test point in voltage difference
In the case where threshold value, abnormal signal is issued, comprising: the case where voltage difference is greater than the second threshold of the corresponding test point
Under, the control signal is sent to controller, and the control signal is for controlling the controller to the printed wiring to be measured
Board group part is powered off, wherein the second threshold is greater than the first threshold.
Further, the abnormal signal further includes alarm signal, is greater than the of the corresponding test point in voltage difference
In the case where one threshold value, abnormal signal is issued, further includes: be less than or equal to the corresponding test point in the voltage difference
In the case where second threshold, the alarm signal is sent.
Further, the first threshold is less than 0.5 times of the predetermined voltage signals, and the second threshold is less than described
9 times of predetermined voltage signals.
Further, the detection method further include: obtain the rate of change of the voltage signal；In the voltage signal
Rate of change not within the predefined range in the case where, issue the abnormal signal, the preset range is the predetermined voltage
The range of the corresponding rate of change of signal.
Further, the process for obtaining the rate of change includes: to determine the test point based on the voltage signal
Voltage oscillogram；The rate of change of the voltage signal is calculated according to the voltage oscillogram.
According to the another aspect of the application, a kind of detection device of printed wiring board component is provided, comprising: the first control
Unit applies detection voltage to printed wiring board component to be measured for controlling；First detection unit, for detecting the print to be measured
The voltage of each measuring point to be checked of circuit board module processed, obtains multiple voltage signals, wherein the voltage signal with it is described to be detected
Point corresponds, and the measuring point to be checked is the pin of the element of the printed wiring board component to be measured；Second control unit, is used for
In the case where voltage difference is greater than the first threshold of the corresponding test point, abnormal signal is issued, wherein the voltage difference is
The absolute value of voltage difference, the voltage difference are the predetermined voltage signals of the voltage signal and the corresponding measuring point to be checked
Difference.
According to the another aspect of the application, a kind of storage medium is provided, the storage medium includes the program of storage,
In, described program executes the detection method of the printed wiring board component described in any one.
According to the another aspect of the application, a kind of processor is provided, the processor is for running program, wherein institute
State the detection method that the printed wiring board component described in any one is executed when program operation.
Using the technical solution of the application, in the detection method of above-mentioned printed wiring board component, first to track to be measured
Road board group part applies detection voltage, then detects the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains more
A voltage signal, wherein voltage signal is the voltage value of the measuring point to be checked in a period of time, and voltage signal and measuring point one to be checked
One is corresponding, finally in the case where voltage difference is greater than the first threshold of corresponding test point, issues abnormal signal, small in voltage difference
In the case where the first threshold of corresponding test point, i.e., the voltage signal of measuring point to be checked and the difference of predetermined voltage signals are just
In normal range, the measuring point to be checked can continue to detect without exception at this time.Wherein, voltage difference is the absolute of voltage difference
Value, voltage difference are the difference of voltage signal and the predetermined voltage signals of corresponding measuring point to be checked, the predetermined voltage of measuring point to be checked
Signal is the voltage signal detected when measuring point to be checked is without exception.Due to the voltage that voltage signal is the measuring point to be checked in a period of time
Value is greater than corresponding measuring point to be checked in any one voltage difference so voltage difference is also multiple voltage values in a period of time
In the case where first threshold, abnormal signal will be issued, to detect the exception of each measuring point to be checked in time, and then avoids surveying
Printed wiring board component damages during examination.Subsequent, testing staff can carry out breakdown maintenance according to abnormal signal or fill again
Match, and then printed circuit-board assembly is tested.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the flow chart of the detection method of printed circuit board assembly according to an embodiment of the present invention；And
Fig. 2 is the schematic diagram of the detection device of printed circuit board assembly according to an embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
It should be understood that when element (such as layer, film, region or substrate) is described as at another element "upper", this yuan
Part can be directly on another element, or intermediary element also may be present.Moreover, in specification and claims, when
When description has element " connected " to another element, which " can be directly connected to " to another element, or pass through third element
" connected " to another element.
As background technique is introduced, in the prior art, the problem of due to certain element functions or loading error, just
It may result in and occur the problems such as circuit board damage during the test, so as to cause that can not be detected in time to circuit board,
As above in order to solve the problems, such as, present applicant proposes a kind of detection methods of printed wiring board component.
Fig. 1 is the flow chart of the detection method of printed wiring board component according to an embodiment of the present invention, as shown in Figure 1, should
The detection method of printed wiring board component includes the following steps:
Step S101 applies detection voltage to printed wiring board component to be measured；
Step S102 detects the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains multiple voltage letters
Number, wherein above-mentioned voltage signal and above-mentioned measuring point to be checked correspond, and above-mentioned measuring point to be checked is above-mentioned printed wiring board group to be measured
The pin of the element of part；
Step S103 issues abnormal letter in the case where voltage difference is greater than the first threshold of corresponding above-mentioned measuring point to be checked
Number, wherein above-mentioned voltage difference be voltage difference absolute value, above-mentioned voltage difference be above-mentioned voltage signal with it is corresponding it is above-mentioned to
The difference of the predetermined voltage signals of test point.
In the detection method of above-mentioned printed wiring board component, detection voltage is applied to printed wiring board component to be measured first,
Then the voltage for detecting each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains multiple voltage signals, wherein voltage letter
Number for the measuring point to be checked in a period of time voltage value, and voltage signal and measuring point to be checked correspond, finally big in voltage difference
In the case where the first threshold of corresponding test point, abnormal signal is issued, is less than the first of corresponding test point in voltage difference
In the case where threshold value, i.e., in the normal range, this is to be checked at this time for the difference of the voltage signal of measuring point to be checked and predetermined voltage signals
Measuring point can continue to detect without exception.Wherein, voltage difference is the absolute value of voltage difference, and voltage difference is voltage letter
Number with the difference of the predetermined voltage signals of corresponding measuring point to be checked, the predetermined voltage signals of measuring point to be checked are that measuring point to be checked is without exception
When the voltage signal that detects.Due to the voltage value that voltage signal is the measuring point to be checked in a period of time, so voltage difference is also one
Multiple voltage values in the section time, in the case where any one voltage difference is greater than the first threshold of corresponding measuring point to be checked, just
Abnormal signal can be issued, to detect the exception of each measuring point to be checked in time, and then avoids printed wiring board during the test
Component damage.Subsequent, testing staff can carry out breakdown maintenance or be ressembled according to abnormal signal, and then to printing electricity
Road board group part is tested.
It should be noted that above-mentioned abnormal signal is used to characterize at least partly element on printed circuit board assembly to be measured
Failure or loading error, wherein failure includes short trouble and open-circuit fault.
In order to improve the accuracy of detection, in a kind of embodiment of the application, above-mentioned detection method further include: obtain above-mentioned
Predetermined voltage signals, the process for obtaining above-mentioned predetermined voltage signals include: to apply above-mentioned detection to reference printed wiring board component
Voltage, wherein above-mentioned with reference to printed wiring board component is the qualified printed wiring board component of assembly；It detects above-mentioned with reference to track
The voltage of each test point of road board group part obtains multiple above-mentioned predetermined voltage signals, wherein above-mentioned predetermined voltage signals with it is above-mentioned
Test point corresponds.Certainly, the predetermined voltage signals for obtaining measuring point to be checked can also be using any feasible mode, as long as can
With the predetermined voltage signals of acquisition.
It should be noted that this is the circuit of same model with reference to printed circuit-board assembly and test print circuit board assemblies
Board group part, since the test point of reference printed wiring board component and the measuring point to be checked of printed wiring board component to be measured correspond,
And predetermined voltage signals and reference printed wiring board component detection point correspond, so predetermined voltage signals and measuring point one to be checked
One is corresponding.
In a kind of embodiment of the application, above-mentioned abnormal signal includes control signal, is greater than in voltage difference corresponding above-mentioned
In the case where the first threshold of test point, abnormal signal is issued, comprising: be greater than the second of corresponding above-mentioned test point in voltage difference
In the case where threshold value, send above-mentioned control signal to controller, above-mentioned control signal for control above controller to it is above-mentioned to
It surveys printed wiring board component to be powered off, wherein above-mentioned second threshold is greater than above-mentioned first threshold.Those skilled in the art can be with
The suitable second threshold selected according to the actual situation, as long as can guarantee to be less than or equal to corresponding test point in voltage difference
Second threshold in the case where, printed wiring board component will not damage.Intelligent power-off may be implemented in above-mentioned detection method,
Printed wiring board component to be measured is powered off in time so as to be further ensured that.
Abnormal signal is quickly handled for the ease of testing staff, to avoid printed wiring board during the test
Component damages, and in a kind of embodiment of the application, above-mentioned abnormal signal further includes alarm signal, is greater than on corresponding in voltage difference
In the case where the first threshold for stating test point, abnormal signal is issued, further includes: be less than or equal in above-mentioned voltage difference corresponding
In the case where the second threshold of above-mentioned test point, that is, the case where being greater than first threshold and be less than or equal to corresponding second threshold
Under, send above-mentioned alarm signal.Above-mentioned alarm signal can remind testing staff's measuring point to be checked to have exception, testing staff's root in time
Respective handling is quickly carried out according to alarm signal.
In a kind of embodiment of the application, above-mentioned first threshold is less than 0.5 times of above-mentioned predetermined voltage signals, and above-mentioned second
Threshold value is less than 9 times of above-mentioned predetermined voltage signals.Certainly, the above-mentioned first threshold of the application and second threshold are not limited to above-mentioned
Range, specifically, the different corresponding first thresholds of measuring point to be checked and the second threshold be not also identical, and those skilled in the art can be with
Select suitable first threshold and second threshold within the above range according to the actual situation.
In actual detection process, when point to be detected occurs abnormal, the voltage signal of the test point may result in
Rate of change cataclysm, still, voltage signal is not larger than first threshold, in order to detect test point in time in these cases
It is abnormal, so that the accuracy of detection is further increased, in a kind of embodiment of the application, above-mentioned detection method further include: obtain
The rate of change of above-mentioned voltage signal；The rate of change of above-mentioned voltage signal not within the predefined range in the case where, in sending
Abnormal signal is stated, above-mentioned preset range is the range of the corresponding rate of change of above-mentioned predetermined voltage signals.Specifically, above-mentioned detection
Method checks that measuring point to be checked with the presence or absence of exception, can detect the change of voltage signal in time according to the rate of change of voltage signal
The Sudden Anomalies for changing rate, further improve the accuracy of detection.
In a kind of embodiment of the application, the process for obtaining above-mentioned rate of change includes: to be determined based on above-mentioned voltage signal
The voltage oscillogram of above-mentioned test point；The rate of change of above-mentioned voltage signal is calculated according to above-mentioned voltage oscillogram.Certainly, above-mentioned
The mode for obtaining rate of change can also be any feasible mode, and those skilled in the art can select to close according to the actual situation
Suitable mode.
A kind of detection device of printed wiring board component is additionally provided according to embodiments of the present invention, it should be noted that this
The detection device of the printed wiring board component of inventive embodiments can be used for executing printed wiring provided by the embodiment of the present invention
The detection method of board group part.The detection device of printed wiring board component provided in an embodiment of the present invention is introduced below.
Fig. 2 is the schematic diagram of the detection device of printed wiring board component according to an embodiment of the present invention, as shown in Fig. 2, should
The detection device of printed wiring board component includes:
First control unit 10 applies detection voltage to printed wiring board component to be measured for controlling；
First detection unit 20, the voltage of each measuring point to be checked for detecting above-mentioned printed wiring board component to be measured, obtains
Multiple voltage signals, wherein above-mentioned voltage signal and above-mentioned measuring point to be checked correspond, and above-mentioned measuring point to be checked is above-mentioned print to be measured
The pin of the element of circuit board module processed；
Second control unit 30, in the case where for being greater than the first threshold of corresponding above-mentioned test point in voltage difference, hair
Abnormal signal out, wherein above-mentioned voltage difference be voltage difference absolute value, above-mentioned voltage difference be above-mentioned voltage signal with it is corresponding
Above-mentioned measuring point to be checked predetermined voltage signals difference.
In the detection device of above-mentioned printed wiring board component, first control unit, which applies printed wiring board component to be measured, to be examined
Voltage is surveyed, first detection unit detects the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains multiple voltages
Signal, wherein voltage signal is the voltage value of the measuring point to be checked in a period of time, and voltage signal and measuring point to be checked are right one by one
It answers, the second control unit issues abnormal signal, in voltage in the case where voltage difference is greater than the first threshold of corresponding test point
In the case that difference is less than the first threshold of corresponding test point, i.e., the voltage signal of measuring point to be checked and the difference of predetermined voltage signals
In the normal range, the measuring point to be checked can continue to detect without exception at this time.Wherein, voltage difference is voltage difference
Absolute value, voltage difference are the difference of voltage signal and the predetermined voltage signals of corresponding measuring point to be checked, and measuring point to be checked makes a reservation for
Voltage signal is the voltage signal detected when measuring point to be checked is without exception.Since voltage signal is the measuring point to be checked in a period of time
Voltage value is greater than corresponding to be detected so voltage difference is also multiple voltage values in a period of time in any one voltage difference
In the case where the first threshold of point, abnormal signal will be issued, to detect the exception of each measuring point to be checked in time, and then is avoided
Printed wiring board component damages during the test.Subsequent, testing staff can carry out breakdown maintenance or again according to abnormal signal
New clothes are matched, and then are tested printed circuit-board assembly.
It should be noted that above-mentioned abnormal signal is used to characterize at least partly element on printed circuit board assembly to be measured
Failure or loading error, wherein failure includes short trouble and open-circuit fault.
In order to improve the accuracy of detection, in a kind of embodiment of the application, above-mentioned detection device further includes acquiring unit,
Above-mentioned acquiring unit includes the first control module and detection module for obtaining above-mentioned predetermined voltage signals, above-mentioned acquiring unit,
Wherein, the first control module is used to apply above-mentioned detection voltage to reference printed wiring board component, wherein above-mentioned to refer to track
Road board group part is the qualified printed wiring board component of assembly；Detection module is above-mentioned with reference to each of printed wiring board component for detecting
The voltage of test point obtains multiple above-mentioned predetermined voltage signals, wherein above-mentioned predetermined voltage signals and above-mentioned test point one are a pair of
It answers.Certainly, the predetermined voltage signals for obtaining measuring point to be checked can also be using any feasible processing mode, as long as available
Voltage signal is the predetermined voltage signals detected when measuring point to be checked is without exception.
It should be noted that this is the circuit of same model with reference to printed circuit-board assembly and test print circuit board assemblies
Board group part, since the test point of reference printed wiring board component and the measuring point to be checked of printed wiring board component to be measured correspond,
And predetermined voltage signals and reference printed wiring board component detection point correspond, so predetermined voltage signals and measuring point one to be checked
One is corresponding.
In a kind of embodiment of the application, above-mentioned abnormal signal includes control signal, and the second control unit includes the second control
Molding block, the second control module is used in the case where voltage difference is greater than the second threshold of corresponding above-mentioned test point, in transmission
Control signal is stated to controller, above-mentioned control signal carries out above-mentioned printed wiring board component to be measured for controlling above controller
Power-off, wherein above-mentioned second threshold is greater than above-mentioned first threshold.The conjunction that those skilled in the art can select according to the actual situation
Suitable second threshold, as long as can guarantee in the case where voltage difference is less than or equal to the second threshold of corresponding test point,
Printed wiring board component will not damage.Intelligent power-off may be implemented in above-mentioned detection method, so as to be further ensured that
Printed wiring board component to be measured is powered off in time.
Abnormal signal is quickly handled for the ease of testing staff, to avoid printed wiring board during the test
Component damages, and in a kind of embodiment of the application, above-mentioned abnormal signal further includes alarm signal, and the second control unit includes third
Control module, third control module are used to be less than or equal to the second threshold of corresponding above-mentioned test point in above-mentioned voltage difference
In the case of, that is, in the case where being greater than first threshold and being less than or equal to corresponding second threshold, send above-mentioned alarm signal.On
Stating alarm signal can remind testing staff's measuring point to be checked to have exception in time, and testing staff quickly carries out accordingly according to alarm signal
Processing.
Specifically, in the case where voltage difference is less than the first threshold of corresponding test point, i.e., the voltage letter of measuring point to be checked
In the normal range number with the differences of predetermined voltage signals, the measuring point to be checked can continue to detect without abnormal at this time.
In a kind of embodiment of the application, above-mentioned first threshold is less than 0.5 times of above-mentioned predetermined voltage signals, and above-mentioned second
Threshold value is less than 9 times of above-mentioned predetermined voltage signals.Certainly, the above-mentioned first threshold of the application and second threshold are not limited to above-mentioned
Range, specifically, the different corresponding first thresholds of measuring point to be checked and the second threshold be not also identical, and those skilled in the art can be with
Select suitable first threshold and second threshold within the above range according to the actual situation.
In actual detection process, when point to be detected occurs abnormal, the voltage signal of the test point may result in
Rate of change cataclysm, still, voltage signal is not larger than first threshold, in order to detect test point in time in these cases
Abnormal, to further increase the accuracy of detection, in a kind of embodiment of the application, above-mentioned detection device further includes the second inspection
Unit is surveyed, second detection unit includes obtaining module and the 4th control module, wherein obtain module for obtaining above-mentioned voltage letter
Number rate of change；4th control module be used for the rate of change of above-mentioned voltage signal not within the predefined range in the case where,
Above-mentioned abnormal signal is issued, above-mentioned preset range is the range of the corresponding rate of change of above-mentioned predetermined voltage signals.Specifically, on
It states detection method and checks that measuring point to be checked with the presence or absence of exception, can detect that voltage is believed in time according to the rate of change of voltage signal
Number the mutation of rate of change further improve the accuracy of detection so that it is abnormal to confirm that measuring point to be checked exists.
In a kind of embodiment of the application, obtaining module includes acquisition submodule and computational submodule, wherein obtains submodule
Block is used to determine the voltage oscillogram of above-mentioned test point based on above-mentioned voltage signal；Computational submodule is used for according to above-mentioned voltage wave
Shape figure calculates the rate of change of above-mentioned voltage signal.Certainly, the mode of above-mentioned acquisition rate of change can also be any feasible
Module, those skilled in the art can select suitable module according to the actual situation.
Another aspect according to an embodiment of the present invention, additionally provides a kind of storage medium, above-mentioned storage medium includes
The program of storage, wherein above procedure executes the detection method of any one of above-mentioned printed wiring board component.
Another aspect according to an embodiment of the present invention, additionally provides a kind of processor, above-mentioned processor is for running
Program, wherein above procedure executes the detection method of any one of above-mentioned printed wiring board component when running.
The detection device of above-mentioned printed wiring board component includes processor and memory, above-mentioned first control unit, first
Detection unit and the second control unit etc. store in memory as program unit, are stored in memory by processor execution
In above procedure unit realize corresponding function.
Include kernel in processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be set one
Or more, to detect the exception of printed circuit board assembly in time by adjusting kernel parameter.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, if read-only memory (ROM) or flash memory (flash RAM), memory include that at least one is deposited
Store up chip.
The embodiment of the invention provides a kind of storage mediums, are stored thereon with program, real when which is executed by processor
The detection method of existing above-mentioned printed wiring board component.
The embodiment of the invention provides a kind of processor, above-mentioned processor is for running program, wherein above procedure operation
The detection method of the above-mentioned printed wiring board component of Shi Zhihang.
The embodiment of the invention provides a kind of equipment, equipment include processor, memory and storage on a memory and can
The program run on a processor, processor realize at least following steps when executing program:
Step S101 applies detection voltage to printed wiring board component to be measured；
Step S102 detects the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains multiple voltage letters
Number, wherein above-mentioned voltage signal and above-mentioned measuring point to be checked correspond, and above-mentioned measuring point to be checked is above-mentioned printed wiring board group to be measured
The pin of the element of part；
Step S103 issues abnormal letter in the case where voltage difference is greater than the first threshold of corresponding above-mentioned measuring point to be checked
Number, wherein above-mentioned voltage difference be voltage difference absolute value, above-mentioned voltage difference be above-mentioned voltage signal with it is corresponding it is above-mentioned to
The difference of the predetermined voltage signals of test point.
Equipment herein can be server, PC, PAD, mobile phone etc..
Present invention also provides a kind of computer program products, when executing on data processing equipment, are adapted for carrying out just
Beginningization has the program of at least following method and step:
Step S101 applies detection voltage to printed wiring board component to be measured；
Step S102 detects the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains multiple voltage letters
Number, wherein above-mentioned voltage signal and above-mentioned measuring point to be checked correspond, and above-mentioned measuring point to be checked is above-mentioned printed wiring board group to be measured
The pin of the element of part；
Step S103 issues abnormal letter in the case where voltage difference is greater than the first threshold of corresponding above-mentioned measuring point to be checked
Number, wherein above-mentioned voltage difference be voltage difference absolute value, above-mentioned voltage difference be above-mentioned voltage signal with it is corresponding it is above-mentioned to
The difference of the predetermined voltage signals of test point.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It can be seen from the above description that the application the above embodiments realize following technical effect:
1), in the detection method of the printed wiring board component of the application, printed wiring board component to be measured is applied examine first
Voltage is surveyed, the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured is then detected, obtains multiple voltage signals,
In, voltage signal is the voltage value of the measuring point to be checked in a period of time, and voltage signal and measuring point to be checked correspond, and finally exist
In the case that voltage difference is greater than the first threshold of corresponding test point, abnormal signal is issued, wherein voltage difference is voltage difference
Absolute value, voltage difference are the difference of voltage signal and the predetermined voltage signals of corresponding measuring point to be checked, and measuring point to be checked makes a reservation for
Voltage signal is the voltage signal detected when measuring point to be checked is without exception.Since voltage signal is the measuring point to be checked in a period of time
Voltage value is greater than corresponding to be detected so voltage difference is also multiple voltage values in a period of time in any one voltage difference
In the case where the first threshold of point, abnormal signal will be issued, to detect the exception of each measuring point to be checked in time, and then is avoided
Printed wiring board component damages during the test.
2), in the detection device of the printed wiring board component of the application, first control unit is to printed wiring board group to be measured
Part applies detection voltage, and first detection unit detects the voltage of each measuring point to be checked of above-mentioned printed wiring board component to be measured, obtains
Multiple voltage signals, wherein voltage signal is the voltage value of the measuring point to be checked in a period of time, and voltage signal and measuring point to be checked
It corresponding, the second control unit issues abnormal signal in the case where voltage difference is greater than the first threshold of corresponding test point,
Wherein, voltage difference is the absolute value of voltage difference, and voltage difference is that voltage signal is believed with the predetermined voltage of corresponding measuring point to be checked
Number difference, the predetermined voltage signals of measuring point to be checked are the voltage signal detected when measuring point to be checked is without exception.Due to voltage signal
For the voltage value of the measuring point to be checked in a period of time, so voltage difference is also multiple voltage values in a period of time, any one
In the case that a voltage difference is greater than the first threshold of corresponding measuring point to be checked, abnormal signal will be issued, to detect in time
The exception of each measuring point to be checked, and then avoid printed wiring board component damage during the test.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of detection method of printed wiring board component characterized by comprising
Detection voltage is applied to printed wiring board component to be measured；
The voltage for detecting each measuring point to be checked of the printed wiring board component to be measured, obtains multiple voltage signals, wherein the electricity
Signal and the measuring point to be checked is pressed to correspond, the measuring point to be checked is drawing for the element of the printed wiring board component to be measured
Foot；
In the case where voltage difference is greater than the first threshold of the corresponding measuring point to be checked, abnormal signal is issued, wherein the electricity
Pressure difference is the absolute value of voltage difference, and the voltage difference is the predetermined electricity of the voltage signal and the corresponding measuring point to be checked
Press the difference of signal.
2. the method according to claim 1, wherein the detection method further include: obtain the predetermined voltage
Signal, the process for obtaining the predetermined voltage signals include:
The detection voltage is applied to reference printed wiring board component, wherein described to close with reference to printed wiring board component for assembly
The printed wiring board component of lattice；
The voltage for detecting each test point with reference to printed wiring board component, obtains multiple predetermined voltage signals, wherein
The predetermined voltage signals and the test point correspond.
3. the method according to claim 1, wherein the abnormal signal include control signal, it is big in voltage difference
In the case where the first threshold of the corresponding test point, abnormal signal is issued, comprising:
In the case where voltage difference is greater than the second threshold of the corresponding test point, the transmission control signal to controller,
The control signal powers off the printed wiring board component to be measured for controlling the controller, wherein described second
Threshold value is greater than the first threshold.
4. the method according to claim 1, wherein the abnormal signal further includes alarm signal, in voltage difference
In the case where first threshold greater than the corresponding test point, abnormal signal is issued, further includes:
In the case where the voltage difference is less than or equal to the second threshold of the corresponding test point, the alarm signal is sent
Number.
5. according to the method described in claim 3, it is characterized in that, the first threshold is less than the predetermined voltage signals
0.5 times, the second threshold is less than 9 times of the predetermined voltage signals.
6. method according to any one of claim 3 to 5, which is characterized in that the detection method further include:
Obtain the rate of change of the voltage signal；
The rate of change of the voltage signal not within the predefined range in the case where, issue the abnormal signal, it is described predetermined
Range is the range of the corresponding rate of change of the predetermined voltage signals.
7. according to the method described in claim 6, it is characterized in that, the process for obtaining the rate of change includes:
The voltage oscillogram of the test point is determined based on the voltage signal；
The rate of change of the voltage signal is calculated according to the voltage oscillogram.
8. a kind of detection device of printed wiring board component characterized by comprising
First control unit applies detection voltage to printed wiring board component to be measured for controlling；
First detection unit, the voltage of each measuring point to be checked for detecting the printed wiring board component to be measured, obtains multiple electricity
Press signal, wherein the voltage signal and the measuring point to be checked correspond, and the measuring point to be checked is the printed wiring to be measured
The pin of the element of board group part；
Second control unit in the case where for being greater than the first threshold of the corresponding test point in voltage difference, issues abnormal
Signal, wherein the voltage difference be voltage difference absolute value, the voltage difference be the voltage signal with it is corresponding described
The difference of the predetermined voltage signals of measuring point to be checked.
9. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein described program right of execution
Benefit require any one of 1 to 7 described in printed wiring board component detection method.
10. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 7 described in printed wiring board component detection method.
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| CN201910848899.5A CN110514949A (en) | 2019-09-09 | 2019-09-09 | Detection method, device, storage medium and the processor of printed circuit board assembly |
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| CN201910848899.5A CN110514949A (en) | 2019-09-09 | 2019-09-09 | Detection method, device, storage medium and the processor of printed circuit board assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180150A (en) * | 2020-09-29 | 2021-01-05 | 山东云海国创云计算装备产业创新中心有限公司 | Multi-point voltage detection method and system of server and related components |
| CN112345922A (en) * | 2020-11-23 | 2021-02-09 | 意力(广州)电子科技有限公司 | Circuit fault detection device and detection method |
| CN112345982A (en) * | 2020-09-29 | 2021-02-09 | 歌尔科技有限公司 | Method and device for detecting welding condition of circuit element |
| CN112505393A (en) * | 2020-11-13 | 2021-03-16 | 杭州辰汉智能科技有限公司 | Electric vehicle instrument signal detection method and system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2281403A (en) * | 1993-08-31 | 1995-03-01 | Hewlett Packard Co | Detecting faults on a printed circuit board |
| KR20000054963A (en) * | 1999-02-02 | 2000-09-05 | 윤종용 | Pcb inspection appratus and method |
| CN101799507A (en) * | 2009-02-10 | 2010-08-11 | 迈克珂来富株式会社 | Printed circuit board testing device and testing method |
| EP2629103A1 (en) * | 2010-10-14 | 2013-08-21 | Yazaki Corporation | Voltage measurement device for plurality of assembled batteries |
| CN105183611A (en) * | 2015-09-23 | 2015-12-23 | 浪潮电子信息产业股份有限公司 | Method for preventing PCB card from being burnt out by means of detecting voltages |
| CN106526456A (en) * | 2016-12-02 | 2017-03-22 | 河南中烟工业有限责任公司 | Online test device and method of integrated circuit |
| CN107179495A (en) * | 2017-06-06 | 2017-09-19 | 上海传英信息技术有限公司 | Welding circuit board detection method and device |
| CN107192940A (en) * | 2017-04-27 | 2017-09-22 | 中国石油天然气股份有限公司 | A kind of device for detecting circuit board working condition |
| CN107478950A (en) * | 2017-07-28 | 2017-12-15 | 许继集团有限公司 | A kind of discrimination method of the bipolar short trouble of DC line |
| CN108008281A (en) * | 2017-11-16 | 2018-05-08 | 易事特集团股份有限公司 | Fault detection method, system, computer equipment and storage medium |
| CN108983074A (en) * | 2018-08-09 | 2018-12-11 | 珠海格力智能装备有限公司 | The detection method and device of circuit board |
| CN109581195A (en) * | 2018-12-19 | 2019-04-05 | 广东小天才科技有限公司 | A kind of detection method and device of PCBA |
-
2019
- 2019-09-09 CN CN201910848899.5A patent/CN110514949A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2281403A (en) * | 1993-08-31 | 1995-03-01 | Hewlett Packard Co | Detecting faults on a printed circuit board |
| US5504432A (en) * | 1993-08-31 | 1996-04-02 | Hewlett-Packard Company | System and method for detecting short, opens and connected pins on a printed circuit board using automatic test equipment |
| KR20000054963A (en) * | 1999-02-02 | 2000-09-05 | 윤종용 | Pcb inspection appratus and method |
| CN101799507A (en) * | 2009-02-10 | 2010-08-11 | 迈克珂来富株式会社 | Printed circuit board testing device and testing method |
| EP2629103A1 (en) * | 2010-10-14 | 2013-08-21 | Yazaki Corporation | Voltage measurement device for plurality of assembled batteries |
| CN105183611A (en) * | 2015-09-23 | 2015-12-23 | 浪潮电子信息产业股份有限公司 | Method for preventing PCB card from being burnt out by means of detecting voltages |
| CN106526456A (en) * | 2016-12-02 | 2017-03-22 | 河南中烟工业有限责任公司 | Online test device and method of integrated circuit |
| CN107192940A (en) * | 2017-04-27 | 2017-09-22 | 中国石油天然气股份有限公司 | A kind of device for detecting circuit board working condition |
| CN107179495A (en) * | 2017-06-06 | 2017-09-19 | 上海传英信息技术有限公司 | Welding circuit board detection method and device |
| CN107478950A (en) * | 2017-07-28 | 2017-12-15 | 许继集团有限公司 | A kind of discrimination method of the bipolar short trouble of DC line |
| CN108008281A (en) * | 2017-11-16 | 2018-05-08 | 易事特集团股份有限公司 | Fault detection method, system, computer equipment and storage medium |
| CN108983074A (en) * | 2018-08-09 | 2018-12-11 | 珠海格力智能装备有限公司 | The detection method and device of circuit board |
| CN109581195A (en) * | 2018-12-19 | 2019-04-05 | 广东小天才科技有限公司 | A kind of detection method and device of PCBA |
Non-Patent Citations (3)
| Title |
|---|
| KONSTANTIN O. PETROSYANTS ETC.: "Simulation of CMOS IC’s Waveforms", 《24TH TELECOMMUNICATIONS FORUM TELFOR 2016》 * |
| 冯文魁 等: "印制板组件的在线测试技术", 《检验与测试》 * |
| 赵虎强 等: "PCB反设计***中的探测电路", 《微计算机信息》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180150A (en) * | 2020-09-29 | 2021-01-05 | 山东云海国创云计算装备产业创新中心有限公司 | Multi-point voltage detection method and system of server and related components |
| CN112345982A (en) * | 2020-09-29 | 2021-02-09 | 歌尔科技有限公司 | Method and device for detecting welding condition of circuit element |
| CN112505393A (en) * | 2020-11-13 | 2021-03-16 | 杭州辰汉智能科技有限公司 | Electric vehicle instrument signal detection method and system |
| CN112505393B (en) * | 2020-11-13 | 2022-09-20 | 杭州辰汉智能科技有限公司 | Electric vehicle instrument signal detection method and system |
| CN112345922A (en) * | 2020-11-23 | 2021-02-09 | 意力(广州)电子科技有限公司 | Circuit fault detection device and detection method |
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Application publication date: 20191129 |