CN107315121A - Automated test device is disturbed between a kind of extensive twisted-pair cable - Google Patents
Automated test device is disturbed between a kind of extensive twisted-pair cable Download PDFInfo
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- CN107315121A CN107315121A CN201710637798.4A CN201710637798A CN107315121A CN 107315121 A CN107315121 A CN 107315121A CN 201710637798 A CN201710637798 A CN 201710637798A CN 107315121 A CN107315121 A CN 107315121A
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- 238000012360 testing method Methods 0.000 title claims abstract description 173
- 238000005259 measurement Methods 0.000 claims abstract description 40
- 230000005284 excitation Effects 0.000 claims abstract description 35
- 239000011159 matrix material Substances 0.000 claims description 37
- 238000005086 pumping Methods 0.000 claims description 16
- 230000003750 conditioning effect Effects 0.000 claims description 12
- 230000002452 interceptive effect Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses disturbing automated test device between a kind of extensive twisted-pair cable, including：Automatic test control module (1), test and excitation source module (2), test collection measurement module (3), test input handover module (4)；The automatic test control module (1) is connected with test and excitation source module (2), test collection measurement module (3) and test input handover module (4) respectively；The test input handover module (4) is connected with test and excitation source module (2) and test collection measurement module (3)；The test input handover module (4) is controlled by automatic test control module (1), the link of the tested cable input measurement of switching；The test and excitation source module (2) is controlled by automatic test control module (1) and exports the signal of certain frequency and peak-to-peak value voltage to test input handover module (4)；The signal of test collection measurement module (3) collecting test input handover module (4) output simultaneously sends automatic test control module (1) to.
Description
Technical field
The present invention relates to disturb automatic test between automatization testing technique field, more particularly to a kind of extensive twisted-pair feeder
Equipment.
Background technology
Twisted-pair feeder is the most frequently used transmission medium in a kind of generic cabling engineering, is by the plain conductor of a pair of mutually insulateds
It is stranded to form.Wherein, unshielded twisted pair does not shield overcoat, is a kind of data line, with diameter it is small, save space,
Cost is low, lightweight, flexible, it is easy to install the advantages of, with independence and flexibility, it is adaptable to structuring and comprehensive wiring,
It is widely used in Etherloop and telephone wire, is also gradually widely used in recent years in the fields such as space flight and aviation, weaponry.
But, due to no shielding overcoat, the signal between unshielded twisted pair line produces string in the presence of electromagnetic induction
Disturb, and then cause signal to be easily lost and malfunction during transmission.Therefore unshielded twisted pair is before type selecting, assembling, dress
Waited after matching somebody with somebody needs to test the disturbed condition its internal core using link, so as to grasp and whether judge the twisted-pair feeder
It is adapted to use.
Disturbed test mainly uses manual test between current twisted-pair cable, has as a drawback that：Efficiency is low, human factor shadow
Ring big, the reliability of test can not ensure.Secondly, present crosstalk test approach mainly by whetheing there is crosstalk in measurement circuitry when
The difference of silent noise, to measure the size of crosstalk., it is necessary to individually activate every circuit during test, measurement
Silent noise of the circuit in the case of without All other routes crosstalk, by the difference of silent noise twice, measures this disturbed two-by-two
Silent noise of the circuit in the case of crosstalking line activation.But, time-consuming, it is necessary to frequently deactivate circuit for measurement one by one,
It is larger to service impact, it is necessary to which the number of times of measurement is huge when especially line size is larger.Therefore, the automation of interference signal
The collection measurement of interference signal turns into crosstalk test urgent problem between measurement and extensive twisted-pair cable.
The content of the invention
The present invention is intended to provide disturbing automated test device between a kind of extensive twisted-pair cable, automatic measurement is extensive
Interference between twisted-pair cable.
To achieve these goals, this invention takes following technical scheme：
Automated test device, including automatic test control module test and excitation are disturbed between a kind of extensive twisted-pair cable
Source module, test collection measurement module, test input handover module；The automatic test control module and test and excitation source mould
Block, test collection measurement module, test input handover module connection；The test input handover module and test and excitation source module
With test collection measurement module connection；The test input handover module is controlled by automatic test control module, and switching is tested
The link of cable input measurement；The test and excitation source module is controlled by automatic test control module, output certain frequency and
Peak-to-peak value voltage signal is simultaneously output to test input handover module, and then be output to tested cable core；The test collection is surveyed
Amount module collecting test is by inputting the signal for the tested cable core output that handover module is exported and being sent to automatic test
Control module.
Further, the test input handover module includes switching command parsing module, switching switch matrix module；Institute
Switching command parsing module is stated to be connected with switching switch matrix module；The switching command parsing module receives and parses through automation
The switching command of test module output, matrix switch output drive signal to switching switch matrix module；The switching cubicle switchboard
Array module receives the switch matrix drive signal of switching command parsing module output, the link of the tested cable input measurement of switching；
The switching switch matrix module receives signal and the input of the certain frequency and peak-to-peak value voltage of test and excitation source module output
To tested cable core.
Further, the test input handover module also includes pumping signal conditioning module；The pumping signal conditioning
Module is connected with switching switch matrix module；The pumping signal conditioning module uses designing impedance matching, realizes test and excitation
The impedance matching of source module and test input handover module；The pumping signal conditioning module receives the output of test and excitation source module
Signal and be sent to switching switch matrix module.
Further, the switching command parsing module uses FPGA；The FPGA is surveyed using internal logic to automation
The instruction of examination control module output is parsed and produces switch matrix drive signal；The switch matrix drive signal is from FPGA
IO pin output.
Further, the FPGA has programmable interface RS422, the finger for receiving automation testing control module output
Order.
Further, the switching switch matrix module is switched from magnetic latching relay as switching；The magnetic is kept
Relay makes circuit turn on automatically or disconnection, the link of the tested cable input measurement of switching according to switch matrix drive signal.
Further, the test and excitation source module selects program control arbitrarily signal generating device；The arbitrary signal occurs
Device provides various frequencies, waveform, the electric signal of level.
Further, the test collection measurement module selects high accuracy number oscillograph；The high accuracy number oscillography
Device collection and Analysis interference signal, obtain Wave data.
Further, automated test device is disturbed also to include interactive module between the extensive twisted-pair cable；It is described to hand over
Mutual module is connected with automatic test control module.
Further, the automatic test control module uses industrial computer, passes through peripheral programmable interface and test
Encourage source module, test collection measurement module, test input handover module, interactive module connection.
Beneficial effects of the present invention：
From above technical scheme, automatic test control module control test and excitation source module send pumping signal to
Tested cable core, the signal of the tested cable core output of test acquisition module collection in real time is simultaneously sent to automatic test control
Module is analyzed, and realizes the automatic test of crosstalk signal between twisted-pair cable.Test input handover module is controlled by automatically
Change testing control module, the link of the tested cable input test of switching realizes the automation of extensive twisted-pair feeder line-to-line crosstalk
Test.Switch matrix module in test input handover module is switched using magnetic latching relay as switching, and PCB design is used
Signal integrity and Anti-interference Design, while the impedance to transmission link is smoothed, have reached the tested electricity of true reduction
The purpose of cable core crosstalk signal.Test input handover module include pumping signal conditioning module, using designing impedance matching with
Test and excitation source module impedance matching, enhances the driving force of test and excitation source module.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, simple Jie is done to the required accompanying drawing used in embodiment below
Continue.Drawings in the following description are only the embodiment in the present invention, for one of ordinary skill in the art, are not being paid
On the premise of going out creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 be the embodiment of the present invention described in extensive twisted-pair cable between disturb automated test device the general frame；
Fig. 2 cuts for the test input of interference automated test device between the extensive twisted-pair cable described in the embodiment of the present invention
Change the mold the theory diagram of block；
Fig. 3 is the interactive module of interference automated test device between the extensive twisted-pair cable described in the embodiment of the present invention
Theory diagram.
Embodiment
Below in conjunction with the accompanying drawings, the present invention will be described in detail.
In order that the purpose of invention, technical scheme, advantage are more clearly understood, below in conjunction with drawings and Examples to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
As shown in figure 1, automated test device 100 is disturbed between a kind of extensive twisted-pair cable, including automatic test control
Molding block 1, test and excitation source module 2, test collection measurement module 3, test input handover module 4, interactive module 5.
As shown in figure 1, automatic test control module 1 is connected with test input handover module 4, control test input switching
The link of the tested cable input measurement of the switching of module 4.Automatic test control module 1 is connected with test and excitation source module 2, control
Test and excitation source module 2 exports the signal of certain frequency and peak-to-peak value voltage.Test and excitation source module 2 and test input switching mould
Block 4 is connected, and test input handover module is input to using the signal of the certain frequency of output and peak-to-peak value voltage as pumping signal
4, and then it is input to tested cable core.Test input handover module 4 is connected with test collection measurement module 3, by tested cable
The signal of core output is input to collection measurement module.Test collection measurement module 3 is connected with automatic test control module 1,
The signal of tested cable core output is gathered and analyzed, the signal after analysis is then input to automatic test module 1 and entered
Row further analysis.
In the present embodiment, automatic test control module 1 uses industrial computer, passes through peripheral programmable interface and test
Excitation source module 2, test collection measurement module 3, test input handover module 4, interactive module 5 are connected.Automatic test is controlled
Module 1 is according to testing process runs software, control test and excitation source module 2, test collection measurement module 3, test input switching
Module 4, interactive module 5.
In the present embodiment, test and excitation source module 1 is used with program control arbitrarily signal generating device.Arbitrarily signal generating device
As signal source provide various frequencies, waveform, level electric signal.Automatic test control module 1 is optional by programmable interface
Certain frequency, the signal of certain peak-to-peak value voltage are selected as pumping signal.
In the present embodiment, test collection measurement module 3 selects high accuracy number oscillograph.High accuracy number oscillograph can
Quickly, accurately to gather simultaneously Analysis interference signal, Wave data is obtained.
As shown in Fig. 2 test input handover module 4 includes switching command parsing module 41, switching switch matrix module 42
And pumping signal conditioning module 43.Switch switch matrix module 42 to adjust with switching command parsing module 41, pumping signal respectively
Reason module 43 is connected.Switching command parsing module 41 receives and parses through the switching command of automatic test module output, and output is opened
Matrix driving signal is closed to switching switch matrix module 42.Switch the reception switching command parsing module 41 of switch matrix module 42 defeated
The switch matrix drive signal gone out, the link of the tested cable input measurement of switching.Pumping signal conditioning module 43 and test and excitation
Source module 2 is connected, and is carried out impedance conversion by the output interface to test and excitation source module 2, is realized test and excitation source module 2
With the impedance matching of the link of tested cable input measurement, the driving force of the test and excitation source module 2 is enhanced.Test swashs
Encourage source module 2 and the signal of certain frequency and peak-to-peak value voltage is input to switching switch matrix by pumping signal conditioning module 43
Module 42, and then it is input to tested cable core.
In the present embodiment, switching command parsing module 41 uses FPGA, and FPGA is using internal logic to automatic test
The instruction that control module 1 is exported is parsed and then produces switch matrix drive signal, and is exported from FPGA IO pin.
In the present embodiment, the FPGA that switching command parsing module 41 is used has programmable interface RS422, for receiving
The instruction of automatic test control module output.
In the present embodiment, switching switch matrix module 42 is switched from magnetic latching relay as switching.Magnetic keep after
The switch matrix drive signal that electrical equipment is exported according to switching command parsing module 41 makes circuit turn on automatically or disconnection, and switching is tested
The link of cable input measurement.The PCB design for switching switch matrix module 42 uses signal integrity and Anti-interference Design, right
The crosstalk between handoff links on pcb board is strictly controlled, while the impedance to transmission link is smoothed, is reached
The purpose of the true tested cable core crosstalk signal of reduction.
As shown in figure 3, interactive module 5 includes display module 51, key-press module 52, mouse 53 and printer 54.Show mould
Block 51 is connected with automatic test control module 1, display device job information.Key-press module 52 and automatic test control module
1 connection, receives instruction in the way of sense switch signal.Mouse 53 and automatic test control mould 1 are connected, by infrared ray or
The displacement of laser detection Genius mouse, and displacement signal is converted into electric impulse signal, control the shifting of the cursor on display module 51
It is dynamic.Printer 54 is connected with automatic test control module 1, is controlled by automatic test control module 1, and required test is joined
Number is printed.
Described above is only the preferred embodiments of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. disturb automated test device between a kind of extensive twisted-pair cable, it is characterised in that：Mould is controlled including automatic test
Block (1), test and excitation source module (2), test collection measurement module (3), test input handover module (4)；The automation is surveyed
Examination control module (1) is connected with test and excitation source module (2), test collection measurement module (3), test input handover module (4)；
The test input handover module (4) is connected with test and excitation source module (2) and test collection measurement module (3)；The test
Input handover module (4) is controlled by automatic test control module (1), the link of the tested cable input measurement of switching；It is described to survey
Examination excitation source module (2) is controlled by automatic test control module (1), output certain frequency and peak-to-peak value voltage signal and exported
To test input handover module (4), and then it is output to tested cable core；Described test collection measurement module (3) collecting test
By inputting the signal for the tested cable core output that handover module (4) is exported and being sent to automatic test control module (1).
2. disturb automated test device between a kind of extensive twisted-pair feeder according to claim 1, it is characterised in that：It is described
Test input handover module (4) includes switching command parsing module (41), switching switch matrix module (42)；The switching command
Parsing module (41) is connected with switching switch matrix module (42)；The switching command parsing module (41) receives and parses through automatically
Change the switching command of test module (1) output, matrix switch output drive signal to switching switch matrix module (42)；It is described to cut
Change the switch matrix drive signal that switch matrix module (42) receives switching command parsing module (41) output, the tested cable of switching
The link of input measurement；It is described switching switch matrix module (42) receive test and excitation source module (2) output certain frequency and
The signal of peak-to-peak value voltage is simultaneously input to tested cable core.
3. disturb automated test device between a kind of extensive twisted-pair feeder according to claim 2, it is characterised in that：It is described
Test input handover module (4) also includes pumping signal conditioning module (43)；The pumping signal conditioning module (43) and switching
Switch matrix module (42) is connected；The pumping signal conditioning module (43) uses designing impedance matching, realizes test and excitation source
Module (2) and the impedance matching of test input handover module (4)；The pumping signal conditioning module (43) receives test and excitation source
The signal of module (2) output is simultaneously sent to switching switch matrix module (42).
4. disturb automated test device between a kind of extensive twisted-pair feeder according to claim 2, it is characterised in that：It is described
Switching command parsing module (41) uses FPGA；The FPGA is exported using internal logic to automatic test control module (1)
Instruction parsed and produce switch matrix drive signal；The switch matrix drive signal is exported from FPGA IO pin.
5. disturb automated test device between a kind of extensive twisted-pair feeder according to claim 4, it is characterised in that：It is described
FPGA has programmable interface RS422, the instruction for receiving automation testing control module (1) output.
6. disturb automated test device between a kind of extensive twisted-pair feeder according to claim 2, it is characterised in that：It is described
Switch switch matrix module (42) to switch as switching using magnetic latching relay；The magnetic latching relay is according to switch matrix
Drive signal makes circuit turn on automatically or disconnection, the link of the tested cable input measurement of switching.
7. disturbing automated test device between a kind of extensive twisted-pair feeder according to claim 1-6 any one, it is special
Levy and be：The test and excitation source module (2) selects program control arbitrarily signal generating device；The arbitrarily signal generating device provides each
Plant frequency, waveform, the electric signal of level.
8. disturbing automated test device between a kind of extensive twisted-pair feeder according to claim 1-6 any one, it is special
Levy and be：The test collection measurement module (3) selects high accuracy number oscillograph；The high accuracy number oscillograph collection is simultaneously
Analysis interference signal, obtains Wave data.
9. disturbing automated test device between a kind of extensive twisted-pair feeder according to claim 1-6 any one, it is special
Levy and be：Also include interactive module (5)；The interactive module (5) is connected with automation control module (1).
10. disturbing automated test device between a kind of extensive twisted-pair feeder according to claim 1-6 any one, it is special
Levy and be：The automatic test control module (1) uses industrial computer, passes through peripheral programmable interface and test and excitation source mould
Block (2), test collection measurement module (3), test input handover module (4), interactive module (5) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637798.4A CN107315121A (en) | 2017-07-28 | 2017-07-28 | Automated test device is disturbed between a kind of extensive twisted-pair cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637798.4A CN107315121A (en) | 2017-07-28 | 2017-07-28 | Automated test device is disturbed between a kind of extensive twisted-pair cable |
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| CN107315121A true CN107315121A (en) | 2017-11-03 |
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| CN201710637798.4A Pending CN107315121A (en) | 2017-07-28 | 2017-07-28 | Automated test device is disturbed between a kind of extensive twisted-pair cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442004A (en) * | 2022-04-08 | 2022-05-06 | 河北南皮铁路器材有限责任公司 | Automatic checking table for relay combined wiring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570029A (en) * | 1994-03-30 | 1996-10-29 | Fluke Corporation | Cable crosstalk measurement system |
| CN1858609A (en) * | 2005-08-02 | 2006-11-08 | 华为技术有限公司 | Cable component test system and device |
| CN103063937A (en) * | 2011-10-19 | 2013-04-24 | 北京强度环境研究所 | Analog quantity converter test bench |
| CN103560810A (en) * | 2013-11-15 | 2014-02-05 | 哈尔滨工业大学 | Cable testing controller based on CAN bus communication |
| CN203608196U (en) * | 2013-07-19 | 2014-05-21 | 珠海欧比特控制工程股份有限公司 | 4M-transmission-rate 1553B bus cable test system |
-
2017
- 2017-07-28 CN CN201710637798.4A patent/CN107315121A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570029A (en) * | 1994-03-30 | 1996-10-29 | Fluke Corporation | Cable crosstalk measurement system |
| CN1858609A (en) * | 2005-08-02 | 2006-11-08 | 华为技术有限公司 | Cable component test system and device |
| CN103063937A (en) * | 2011-10-19 | 2013-04-24 | 北京强度环境研究所 | Analog quantity converter test bench |
| CN203608196U (en) * | 2013-07-19 | 2014-05-21 | 珠海欧比特控制工程股份有限公司 | 4M-transmission-rate 1553B bus cable test system |
| CN103560810A (en) * | 2013-11-15 | 2014-02-05 | 哈尔滨工业大学 | Cable testing controller based on CAN bus communication |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442004A (en) * | 2022-04-08 | 2022-05-06 | 河北南皮铁路器材有限责任公司 | Automatic checking table for relay combined wiring |
| CN114442004B (en) * | 2022-04-08 | 2022-07-15 | 河北南皮铁路器材有限责任公司 | Automatic checking table for relay combined wiring |
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