CN207301272U - A kind of circuit board functional completeness test platform - Google Patents
A kind of circuit board functional completeness test platform Download PDFInfo
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- CN207301272U CN207301272U CN201721191513.0U CN201721191513U CN207301272U CN 207301272 U CN207301272 U CN 207301272U CN 201721191513 U CN201721191513 U CN 201721191513U CN 207301272 U CN207301272 U CN 207301272U
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Abstract
The utility model discloses a kind of circuit board functional completeness test platform.The test platform of the utility model includes core processing plate, computer, external power supply, signal generator and oscillograph；Test platform possesses unitized feature, and computer can be directed to a variety of circuit board under test and set different testing schemes；The utility model can be directed to the circuit board under test test platform physical interface with different input/output interfaces and be extended transformation；Actual signal can be simulated to circuit board under test, the digital signal of setting can also be inputted, not only may determine that response of the circuit board under test to real input signal, but also may determine that circuit board under test to requiring the response of stringent digital signal；The utility model computer program has the interface with other interprogram communications, can carry out data statistics according to test result and carry out the processing of next step；Whole testing process is connected to power up test from cable only needs 1 people, drastically increases production efficiency.
Description
Technical field
It the utility model is related to electronic product measuring technology, and in particular to a kind of electricity of large medical apparatus PET/CT front ends
The test platform of road plate functional completeness.
Background technology
Circuit board is one of important component of electronic product, undertakes the function of data input, data processing and data output.
Data input and data transfer is referred to as in data output.Subject to really now electronic product function, it is necessary to assure product circuit plate number
According to the correctness of transmission and data processing.
Present electronic product majority is pipelining, just needs to ensure each assembling product portion before electronic product assembling
The qualification of part, includes the qualification of product circuit plate, in particular for large medical apparatus positron emission tomography
(Positron Emission Tomography)/x-ray tomography is imaged (X-ray Computed Tomography), referred to as
PET/CT, circuit-board card value volume and range of product are more, it is desirable to and it is high, with greater need for stringent circuit board testing.Test product circuit board at present
Depart from the front end component of circuit board data input and the rear end interactive component of data output, it is impossible to which circuit board is input to from data
The complete test of data output.Now to the detection of product circuit plate, a carry out circuit board range estimation, upper piezoelectric voltage inspection or letter
Single signal testing, can so omit it is some there is unqualified circuit board hard to find, and these unqualified circuit boards are hidden
The problem of can cause assembling product after the completion of, there is unqualified situation in when test product quality, reduces electronic product production efficiency.
More for large medical apparatus PET/CT circuit board types, there are currently no test platform to be provided simultaneously with to multiple types circuit board function
The function of completely testing.
Utility model content
For above problems of the prior art, the utility model proposes a kind of test of circuit board functional completeness
Platform, the real input signal and real output signal of the test platform analog circuit board of the utility model in the product, is also wrapped
Include and take circuit board stringent signal testing, solve at present because the imperfection of test circuit plate, assemble electronic product
Due to the problem that do not find to hide of circuit board product may be caused unqualified afterwards, cause the waste of product and production efficiency low
Phenomena such as.It can also be directed to and carry out complete function test using different testing schemes in same test platform without class circuit board,
It is unitized to solve the problems, such as that current test process menu one, test circuit plate do not possess.
The circuit board functional completeness test platform of the utility model includes：Core processing plate, computer, external power supply,
Signal generator and oscillograph；Wherein, core processing plate includes central data processor, communication unit, circuit under test board test
Signal output unit, circuit board under test output signal receiving unit, signal switch unit, display unit and board mounted power power supply are single
Member；External power supply is connected to the board mounted power power supply unit of core processing plate by power cable；Circuit board under test and core
Central data processor, communication unit and the display unit of processing board are connected to board mounted power power supply unit；At central data
Reason device is connected with communication unit, signal switch unit, circuit board under test output signal receiving unit and display unit respectively；Letter
Number switch unit includes two input terminals and an output terminal；The signal that signal generator connects core processing plate by cable is cut
Change the first input end of unit；Central data processor is connected to the second input terminal of signal switch unit；Signal switch unit
Output terminal be connected to circuit board under test test signal output unit；Circuit board under test test signal output unit passes through signal wire
Cable is connected to the input terminal of circuit board under test；The output terminal of circuit board under test is connected to circuit board under test output signal and receives list
Member；Circuit board under test output signal receiving unit is respectively connected to central data processor and oscillograph；Communication unit passes through line
Cable is connected to computer.
The external equipment being connected with computer includes printer and server.Printer prints out result.Meter
Calculation machine transmits the result to server, and server is to judging that faulty circuit board under test carries out reprocessing place accordingly in result
Reason.
The circuit board under test type of the utility model is included applied to medical instrument PET/CT prober interfaces plate, PET/CT
Front end PCI board card, PET/CT data fits card and PET/CT clock communication cards.
Computer and the cable that the communication unit of core processing plate is connected use serial ports cable, USB cable, network interface cable with
And one kind in optical fiber cable.
The cable and signal generator that signal generator is connected with the signal switch unit of core processing plate and electricity to be measured
The cable of road board test signal output unit connection, using coaxial radio-frequency cable or winding displacement.
The signal cable that circuit board under test test signal output unit is connected with circuit board under test is using twisted pair wire, winding displacement
With one kind in coaxial radio-frequency cable.
Signal generator produces the actual signal of the simulation of circuit board under test input.The central data processing of core processing plate
Device produces digital signal, and digital signal is clock style, adds 1 one kind or more being incremented by form and by hand setting data mode
Kind.
Central data processor uses CPU, field programmable gate array (Field-Programmable Gate
Array) one kind in FPGA and Digital Signal Processing (Digital Signal Processing) DSP.
Communication unit uses one kind in usb protocol, ICP/IP protocol, serial port protocol and fiber optic communication protocol.
Further, the utility model further includes wire jumper connection unit, central data processor remaining universal input output
Pin I/O is connected to wire jumper connection unit, to carry out Function Extension；Exported for connector and circuit board under test test signal
The circuit board under test that the connector of unit and circuit board under test output signal receiving unit does not match that, then be connected to by wire jumper
On the wire jumper connection unit of core processing plate.Wire jumper connection unit uses double contact pin；Wire jumper is winding displacement or twisted-pair feeder.Wire jumper
One end is double socket, the double contact pin of tie jumper connection unit；According to the company of the input terminal of circuit board under test and output terminal
The contact pin or jack type of device are connect, the wire jumper other end is the socket or contact pin connection to match, realizes test function.
Display unit uses light emitting diode or display screen.
The advantages of the utility model：
1) test platform possesses unitized feature, and computer can be directed to a variety of circuit board under test and set different tests
Scheme, tester only need to carry out cable connection and set, and other processes completely dispense with the intervention of tester；
2) the utility model can be directed to the circuit board under test test platform physical interface with different input/output interfaces
It is extended transformation；The firmware program and computer program of test platform core board central processing unit can also be updated at any time, with
A variety of circuit board under test signal outputs are tested；
3) actual signal can be simulated to circuit board under test, the digital signal of setting can also be inputted, both may determine that and treated
Response of the slowdown monitoring circuit plate to real input signal, and may determine that circuit board under test to requiring the response of stringent digital signal；
4) the utility model computer program has the interface with other interprogram communications, can carry out data according to test result
Statistics and the processing for carrying out next step；
5) whole testing process is connected to power up test from cable only needs 1 people, and production efficiency can be greatly improved.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment one of the circuit board functional completeness test platform of the utility model；
Fig. 2 is the structure diagram of the embodiment two of the circuit board functional completeness test platform of the utility model.
Embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, the utility model is expanded on further.
Embodiment one
In the present embodiment, the connector of circuit board under test and circuit board under test test signal output unit and circuit under test
The connector of plate output signal receiving unit matches.
As shown in Figure 1, the circuit board functional completeness test platform of the present embodiment includes：It is core processing plate, computer, outer
Put power supply, signal generator and oscillograph；Wherein, core processing plate includes central data processor, communication unit, circuit under test
Board test signal output unit, circuit board under test output signal receiving unit, signal switch unit, display unit and board mounted power
Power supply unit；External power supply is connected to the board mounted power power supply unit of core processing plate by power cable；Circuit board under test with
And central data processor, communication unit and the display unit of core processing plate are connected to board mounted power power supply unit；Center
Data processor exports signal receiving unit and display unit phase with communication unit, signal switch unit, circuit board under test respectively
Connection；Signal switch unit includes two input terminals and an output terminal；Signal generator connects core processing plate by cable
Signal switch unit first input end；Central data processor is connected to the second input terminal of signal switch unit；Signal
The output terminal of switch unit is connected to circuit board under test test signal output unit；Circuit board under test test signal output unit leads to
Cross the input terminal that signal cable is connected to circuit board under test；The output terminal of circuit board under test is connected to circuit board under test output signal
Receiving unit；Circuit board under test output signal receiving unit is respectively connected to central data processor and oscillograph；Communication unit
Computer is connected to by cable.
Computer determines testing scheme, sends testing and control and instructs to the central data processor of core processing plate；Calculate
Machine control central data processor sends digital signal, and signal generator sends the actual signal of simulation；Switched by signal single
Signal generator or central data processor are connected to circuit board under test test signal output unit by member, so that signal occurs
The actual signal that device sends simulation is believed as test signal, or the digital signal that central data processor is sent as test
Number, input to circuit board under test test signal output unit；Circuit board under test test signal output unit inputs test signal
To circuit board under test；After circuit board under test performs test function, the output signal transmission of circuit board under test is defeated to circuit board under test
Go out signal receiving unit；Circuit board under test output signal receiving unit will export signal be transmitted separately to central data processor and
Oscillograph；Output signal is shown on oscillograph；Central data processor is transmitted to calculating by signal is exported by communication unit
Machine, computer analyze output signal, obtain the functional status of circuit board under test, and result exported automatically to calculating
The external equipment that machine is connected, carries out result output display or handles in next step；Central data processor judges output letter at the same time
Number correctness, and result is shown by display unit.
The present embodiment illustrates specific implementation process so that practical application tests medical instrument PET/CT front-end circuit plates as an example.
The input of front-end circuit partitioned signal is analog signal, after signal processing, digital signal of the output with specific protocol form.Test
Before beginning, added in computer testing program and the digital signal of this special format is supported.The input of front-end circuit partitioned signal connects
Mouth is connected with test platform core processing plate circuit board under test test signal output unit by twisted pair wire；Front-end circuit partitioned signal
Output interface is connected with the circuit board under test output signal receiving unit of core processing plate by cable；Front-end circuit plate power supply
There is provided by board mounted power power supply unit.Front-end circuit plate and test platform integrally power on；Computer testing program is opened, selection is surveyed
Examination scheme, and testing and control instruction is sent to the central data processor of core processing plate by usb communication；Due to test signal
It is analog signal, the actual signal of setting signal generator output simulation will be believed as test signal by signal switch unit
The actual signal that number generator sends simulation is exported to the circuit board under test test signal output unit of core processing plate, electricity to be measured
Road board test signal output unit output simulation actual signal；Handle and export through front-end circuit partitioned signal, enter at core
Manage the circuit board under test output signal receiving unit of plate.If oscillograph does not have signal to show, or computer testing program connects
Receive data time-out, then circuit board under test is not exported to be unqualified；If oscillograph has signal to show, central data processor
Data are received, if the display LED of core processing plate receives data and do not have for blinking red lamp or computer testing program display
There is the result of matching presumptive test scheme, then front-end circuit plate is unqualified；If the display LED of core processing plate dodges for green light
Bright or computer testing program display receives the result of Data Matching presumptive test scheme, then front-end circuit plate is qualified.Also
The quality that circuit board under test exports signal can be observed by oscillograph, further determines that the performance of front-end circuit plate.
Embodiment two
As shown in Fig. 2, in the present embodiment, connector and the circuit board under test test signal output unit of circuit board under test
Do not matched that with the connector of circuit board under test output signal receiving unit, using wire jumper connection unit, central data processor
Remaining universal input output pin I/O is connected to wire jumper connection unit, and circuit board under test is connected at core by wire jumper
On the wire jumper connection unit for managing plate.Central data processor sends digital signal and passes through wire jumper as test signal, test signal
Connection unit is transmitted to circuit board under test, and after circuit board under test performs test function, the output signal transmission of circuit board under test is extremely
Central data processor.Other are the same as embodiment one.
It is finally noted that the purpose for publicizing and implementing example is that help further understands the utility model, but originally
The technical staff in field is appreciated that：Do not departing from the utility model and appended spirit and scope by the claims, it is various
Substitutions and modifications are all possible.Therefore, the utility model should not be limited to embodiment disclosure of that, and the utility model will
The scope of protection is asked to be subject to the scope that claims define.
Claims (10)
1. a kind of circuit board functional completeness test platform, it is characterised in that the test platform includes：Core processing plate, meter
Calculation machine, external power supply, signal generator and oscillograph；Wherein, core processing plate include central data processor, communication unit,
Circuit board under test test signal output unit, circuit board under test output signal receiving unit, signal switch unit, display unit and
Board mounted power power supply unit；External power supply is connected to the board mounted power power supply unit of core processing plate by power cable；It is to be measured
It is single that the central data processor of circuit board and core processing plate, communication unit and display unit are connected to board mounted power power supply
Member；Central data processor exports signal receiving unit and display with communication unit, signal switch unit, circuit board under test respectively
Unit is connected；Signal switch unit includes two input terminals and an output terminal；Signal generator connects core by cable
The first input end of the signal switch unit of processing board；Central data processor is connected to the second input of signal switch unit
End；The output terminal of signal switch unit is connected to circuit board under test test signal output unit；Circuit board under test test signal is defeated
Go out the input terminal that unit is connected to circuit board under test by signal cable；The output terminal of circuit board under test is connected to circuit board under test
Export signal receiving unit；Circuit board under test output signal receiving unit is respectively connected to central data processor and oscillograph；
Communication unit is connected to computer by cable.
2. test platform as claimed in claim 1, it is characterised in that the external equipment being connected with computer include printer and
Server.
3. test platform as claimed in claim 1, it is characterised in that the communication unit of the computer and core processing plate connects
The cable connect uses one kind in serial ports cable, USB cable, network interface cable and optical fiber cable.
4. test platform as claimed in claim 1, it is characterised in that the signal of the signal generator and core processing plate is cut
The cable that the cable of unit connection and signal generator are connected with circuit board under test test signal output unit is changed, using coaxial
RF cable or winding displacement.
5. test platform as claimed in claim 1, it is characterised in that the circuit board under test test signal output unit is with treating
The signal cable of slowdown monitoring circuit plate connection uses one kind in twisted pair wire, winding displacement and coaxial radio-frequency cable.
6. test platform as claimed in claim 1, it is characterised in that the central data processor of the core processing plate produces
Digital signal, digital signal is clock style plus 1 is incremented by form and sets the one or more in data mode by hand.
7. test platform as claimed in claim 1, it is characterised in that the display unit uses light emitting diode or display
Screen.
8. test platform as claimed in claim 1, it is characterised in that further include wire jumper connection unit, central data processor
Remaining universal input output pin I/O is connected to wire jumper connection unit, to carry out Function Extension, for connector with it is to be measured
The circuit under test that the connector of circuit board testing signal output unit and circuit board under test output signal receiving unit does not match that
Plate, then be connected on the wire jumper connection unit of core processing plate by wire jumper.
9. test platform as claimed in claim 8, it is characterised in that the wire jumper connection unit uses double contact pin；Wire jumper
For winding displacement or twisted-pair feeder.
10. test platform as claimed in claim 1, it is characterised in that the central data processor can using CPU, scene
Program one kind in gate array FPGA and Digital Signal Processing DSP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721191513.0U CN207301272U (en) | 2017-09-15 | 2017-09-15 | A kind of circuit board functional completeness test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721191513.0U CN207301272U (en) | 2017-09-15 | 2017-09-15 | A kind of circuit board functional completeness test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301272U true CN207301272U (en) | 2018-05-01 |
Family
ID=62442801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721191513.0U Active CN207301272U (en) | 2017-09-15 | 2017-09-15 | A kind of circuit board functional completeness test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301272U (en) |
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2017
- 2017-09-15 CN CN201721191513.0U patent/CN207301272U/en active Active
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