CN107037326A - A kind of cable system conducting insulation Auto-Test System based on PXI - Google Patents
A kind of cable system conducting insulation Auto-Test System based on PXI Download PDFInfo
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- CN107037326A CN107037326A CN201710385341.9A CN201710385341A CN107037326A CN 107037326 A CN107037326 A CN 107037326A CN 201710385341 A CN201710385341 A CN 201710385341A CN 107037326 A CN107037326 A CN 107037326A
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- 238000012360 testing method Methods 0.000 title claims abstract description 165
- 238000009413 insulation Methods 0.000 title claims abstract description 79
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- 230000005540 biological transmission Effects 0.000 claims description 6
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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Abstract
The invention provides a kind of cable system conducting insulation Auto-Test System based on PXI, including the combination of portable PXI cabinets, relay switchover combination, program control insulation tester, printer, test cable etc..Wherein, portable PXI cabinets combination includes PXI embedded controllers, multiplexer module, relay driving module, digital multimeter module and keyboard display combination etc., and relay switchover combination includes high voltage relay plate, power module and test cable interconnecting device etc..PXI embedded controllers are the control axis of whole Auto-Test System, and by controlling 2 pieces of multiplexer modules to realize, conducting tested point switches, and controls digital multimeter module to realize the passive continuity test of cable system；By controlling 3 pieces of relay driving modules and 1 piece of multiplexer module to realize that insulation tested point switches, and program control insulation tester is controlled to realize cable system Insulation test function.
Description
Technical field
Patent of the present invention is related to a kind of cable system conducting insulation Auto-Test System based on PXI, using modularized design
Theory, has the advantages that good operating stability, testing efficiency are high, reliability is high, scalability is good, realizes that cable system is passive to lead
Logical test and the automatic test of Insulation test, effectively increase the automatic test level and testing efficiency of cable system test,
More than 300% is improved compared with conventional test methodologies efficiency.
Background technology
Cable system dispatch from the factory before, be required in cable assembling process and after assembling carrying out cable system passive continuity test and
Insulation test, to verify whether its electric property is qualified.Conventional test methodologies are directly to cable system with universal meter and insulation meter
Carry out manual test point-to-pointly, this method testing efficiency is low, and measurement accuracy is low, and in test process cable system exist it is physical
The risk of destruction, it is clear that manual test can not meet the requirement of growing batch production test task.And it is currently marketed
Cable testing equipment, otherwise price is sufficiently expensive, otherwise job stability is not good, it is difficult to meet wanting for cable system batch production test
Ask.To solve problem above, patent of the present invention proposes a kind of cable system conducting insulation Auto-Test System based on PXI.
PXI is a kind of development platform based on PC, PXI combine PCI/PCI Express electric bus characteristic with
CompactPCI modularization and the characteristic of Eurocard mechanical encapsulations, and add special synchronous bus and main software is special
Property, there is high flexibility, high-performance, low price, be widely used in industrial automation manufacture and machinery monitoring test, army
The multiple fields such as thing national defence and Aero-Space, automobile and industrial test, embedded system.PXI systems are main by PXI cabinets, control
Device processed, modular i/O, the part of software four composition.There is PXI cabinets strong and reliable mechanical structure to be inserted there is provided multiple I/O modules
Groove, supports a variety of flexible modularized hardwares, such as signal generator, switch module, signal acquisition module, instrument and meter module
Deng in addition, PXI cabinets, which optimize Power Management Design, heat dissipation design etc., ensure that overall performance and stability.PXI embedded Controls
Device integrated processor, hard disk drive, internal memory, Ethernet, GPIB, USB and other peripheral I/O equipment, generally prepackage
Windows operating system, using computer technology, realizes the communication and control with each module.PXI softwares use visual programming
Software Labview carries out building blocks bridging type programming, and patterned Virtual instrument is set up using built-in mathematics and signal process function
Device panel, realization such as shows at the function to the control of instrument, data acquisition, DATA REASONING and analysis and measurement result.
The content of the invention
To solve the contradiction that traditional cable net manual test testing efficiency is low, patent of the present invention proposes a kind of modularization and set
Meter, good operating stability, testing efficiency are high, the high cable system conducting insulation Auto-Test System based on PXI of automaticity.
The technical solution of patent of the present invention is as described below：
Cable system conducting insulation Auto-Test System uses modularized design, including portable PXI cabinets combination 1, after
Electrical equipment switchover combination 13, program control insulation tester 8, test cable 12, printer 4 etc., wherein, PXI cabinets combination 1 includes PXI
Embedded controller 3,3 multiplexer module PXIe-2575-5,3 relay driving module PXI-2567-6, numerals
Universal meter module PXI-4072-7 and keyboard display combine the modules such as 2, and relay switchover combination 13 includes high voltage relay
Plate 9, power module 10 and test cable interconnecting device 11 etc..
Keyboard display combination 2：It is the interactive interface of test operation personnel and PXI embedded controllers 3, is embedded in PXI
Formula controller 3 is connected, and the functions such as observing and controlling instruction hair is controlled, test data is shown can be achieved；
PXI embedded controllers 3：It is the control axis of Auto-Test System of the present invention, passes through PXI buses and multiplexing
Device module PXIe-2575-5, relay driving module PXI-2567-6 and digital multimeter module PXI-4072-7 communications,
Communicated, communicated by WALN netting twines with printer 4 with program control insulation tester 8 by RS432 universal serial bus.
Multiplexer module PXIe-2575-5：It is the multiplexer relay switch with the line passage of 196 tunnel 1,
Wherein 2 pieces multiplexer modules 5 are connected with PXI embedded controllers 3 and test cable interconnecting device 11, embedding by receiving PXI
Enter the control instruction of formula controller 3, can be achieved to switch the function of tested point in passive continuity test；Another piece of multiplexer mould
Block 5 is connected with PXI embedded controllers 3, high voltage relay plate 9 and power module 10, by receiving PXI embedded controllers
3 control instruction, may be selected and drive single high voltage relay, so as to realize the work(of selection switching tested point in Insulation test
Energy.
Relay driving module PXI-2567-6：It is a kind of 64 passage external relay drive module, it is embedded with PXI
Controller 3, high voltage relay plate 9 and power module 10 are connected, can by receiving the control instruction of PXI embedded controllers 3
Select and drive multiple high voltage relays, so as to realize the function of selection and the multiple tested points of short circuit in Insulation test.
High voltage relay plate 9：Highest is pressure-resistant 1000VDC, is connected with power module 10 and test cable interconnecting device 11, real
The function of the selection switching of tested point in existing Insulation test；
Power module 10：It is connected with high voltage relay plate 9,24V driving voltages is provided for high voltage relay；
Digital multimeter module PXI-4072-7：It is connected, leads to PXI embedded controllers 3 and test cable interconnecting device 11
The control instruction for receiving PXI embedded controllers 3 is crossed, the function such as passive continuity test and test data transmission can be achieved；
Program control insulation tester 8：It is connected with PXI embedded controllers 3 and test cable interconnecting device 11, by receiving PXI
The control instruction of embedded controller 3, can be achieved to apply the functions such as high direct voltage, Insulation test and test data transmission；
Test cable interconnecting device 11：With digital multimeter module PXI-4072-7, program control insulation tester 8, it is high pressure resistant after
Appliance plate 9, test cable 12 etc. are connected, the main conversion completed between PXI test control signals and cable system measured signal；
Printer 4：It is connected with PXI embedded controllers 3, completes test data export printing function.
The test software of the present invention just carries out building blocks bridging type programming mode, profit using visual programming software Labview
Patterned Virtual Instrument is set up with built-in mathematics and signal transacting subfunction, realizes that the passive conducting of cable system is automatic and surveys
The function that examination and insulation are tested automatically.
The invention possesses passive conducting autorun, and its implementation is that PXI embedded controllers 3 are controlled more than two
Path multiplexer module PXIe-2575-5 completes the selection switching of a pair of tested points in continuity test, then controls digital multimeter mould
Block PXI-4072-7 measures conducting resistance and single measurements is returned into the storage of PXI embedded controllers 3 and handles.
The invention possesses insulation autorun, its control strategy be single-point to multiple spot testing insulation between plates, i.e.,：If right
N number of point carries out Insulation test, and by N-1 tested point short circuit (not including i-th of tested point), (i-th to be measured with non-short circuit point
Point) Insulation test is carried out, i changes to N-1 from 1, and the insulation that can be achieved between any two points need to be only tested by N-1 minor insulation
Test.Concrete methods of realizing be the control relay drive module PXI-2567-6 of PXI embedded controllers 3 driving it is high pressure resistant after
Appliance plate 9 gates N-1 high voltage relay, realizes the purpose of N-1 tested point of short circuit (not including i-th of tested point)；Together
When, the control multiplexer module driving high voltage relays of PXIe-2575-5 of PXI embedded controllers 3 plate 9 is gated i-th
High voltage relay, realizes the purpose of i-th of tested point of selection；Program control insulation tester 8 is controlled to realize that tested point applies again straight
High pressure, Insulation test are flowed, and single measurement result is returned into the storage of PXI embedded controllers 3 and is handled.
The advantage of patent of the present invention compared with prior art is：Patent of the present invention is designed based on PXI platform developments, is used
Modular design concept, with the construction cycle is short, good operating stability, the advantages of reliability is high, scalability is good；Software programming
Building blocks bridging type programming mode is carried out using visualization Labview, programming development is simple, and it is convenient to debug；Insulation test controls plan
Slightly single-point substantially reduces the testing time to multiple spot testing insulation between plates, improves testing efficiency.Realize the passive conducting of cable system
Test and the automatic test of Insulation test, effectively increase the automatic test level and testing efficiency of cable system test, compared with
Conventional test methodologies efficiency improves more than 300%.
Brief description of the drawings
Fig. 1 is the Auto-Test System structure composition and connection figure of patent of the present invention；
Fig. 2 is the principle schematic of the passive continuity test of patent of the present invention；
Fig. 3 is the principle schematic of the Insulation test of patent of the present invention；
Fig. 4 is the software implementation process figure of the Insulation test of the present invention.
Embodiment
Further to illustrate the specific embodiment of patent of the present invention, below in conjunction with the accompanying drawings to the technology of patent of the present invention
Scheme discuss detailed completely.
As shown in figure 1, patent of the present invention uses modularized design scheme, including the combination of portable PXI cabinets, relay to turn
Combination, program control insulation tester, test cable, printer etc. are connect, wherein, the combination of PXI cabinets includes PXI embedded controllers, 3
Individual multiplexer module PXIe-2575,3 relay driving module PXI-2567, digital multimeter module PXI-4072 and
The modules such as keyboard display combination, relay switchover combination includes high voltage relay plate, power module and test cable switching
Box etc..
Keyboard display is combined：It is the interactive interface of test operation personnel and PXI embedded controllers, it is embedded with PXI
Controller is connected, and the functions such as observing and controlling instruction hair is controlled, test data is shown can be achieved；
PXI embedded controllers：It is the control axis of Auto-Test System of the present invention, passes through PXI buses and multiplexing
Device module PXIe-2575, relay driving module PXI-2567 and digital multimeter module PXI-4072 communications, pass through RS432
Universal serial bus communicates with program control insulation tester, passes through WALN netting twines and printer communication.
Multiplexer module PXIe-2575：It is the multiplexer relay switch with the line passage of 196 tunnel 1, wherein
2 pieces of multiplexer modules are connected with PXI embedded controllers and test cable interconnecting device, by receiving PXI embedded Controls
The control instruction of device, can be achieved to switch the function of tested point in passive continuity test；Another piece of multiplexer module and PXI are embedding
Enter formula controller, high voltage relay plate and power module connection, can by receiving the control instruction of PXI embedded controllers
Select and drive single high voltage relay, so as to realize the function of selection switching tested point in Insulation test.
Relay driving module PXI-2567：It is a kind of 64 passage external relay drive module, with PXI embedded Controls
Device, high voltage relay plate and power module connection, by receiving the control instruction of PXI embedded controllers, may be selected and drive
Multiple high voltage relays are moved, so as to realize the function of selection and the multiple tested points of short circuit in Insulation test.
High voltage relay plate：Highest is pressure-resistant 1000VDC, is connected with power module and test cable interconnecting device, realizes exhausted
The function of the selection switching of tested point in edge test；
Power module：It is connected with high voltage relay plate, 24V driving voltages is provided for high voltage relay；
Digital multimeter module PXI-4072：It is connected with PXI embedded controllers and test cable interconnecting device, by receiving
The control instruction of PXI embedded controllers, can be achieved the function such as passive continuity test and test data transmission；
Program control insulation tester：It is connected with PXI embedded controllers and test cable interconnecting device, by receiving PXI insertions
The control instruction of formula controller, can be achieved to apply the functions such as high direct voltage, Insulation test and test data transmission；
Test cable interconnecting device：With digital multimeter module PXI-4072, program control insulation tester, high voltage relay
Plate, test cable etc. are connected, the main conversion completed between PXI test control signals and cable system measured signal；
Printer：It is connected with PXI embedded controllers, completes test data export printing function.
As shown in Fig. 2 giving the concrete methods of realizing of passive continuity test.
Fig. 2-(B) gives multiplexer PXIe-2575 and tested point, the connection diagram of test instrumentation, and multichannel is multiple
Digital multimeter module PXI-4072 "+" end or "-" end, output end difference are connected to device module PXIe-2575 COM ends
It is connected one by one with cable tested point by test cable interconnecting device.
Fig. 2-(A) gives passive continuity test hardware configuration schematic diagram, and two multichannels of PXI embedded controller controls are answered
Switched with the device module PXIe-2575 selections for completing a pair of tested points in continuity test, then control digital multimeter module PXI-
Single measurements are simultaneously returned to PXI embedded controllers storage processing by 4072 measurement conducting resistances.
As shown in Figure 3,4, the concrete methods of realizing of Insulation test is given.
Its control strategy be single-point to multiple spot testing insulation between plates, it is if carrying out Insulation test to N number of point, N-1 is to be measured
Point short circuit (not including i-th of tested point), Insulation test is carried out with non-short circuit point (i-th of tested point), and i changes to N-1 from 1,
The Insulation test that can be achieved between any two points need to be only tested by N-1 minor insulation.
Fig. 3-(B) gives high voltage relay plate, multiplexer PXIe-2575, relay driving module PXI-
2567th, the connection diagram between power module, tested point, program control insulation tester.It is all resistance on high voltage relay plate
1 pin of high-voltage relay is connected to insulation test pencil "+" end or "-" end, 2 pins respectively by test cable interconnecting device with it is to be measured
Point connects one to one, and 3 pins are connected to the 24VDC forward ends of power module, 4 pins respectively with relay driving module PXI-
2567 or multiplexer module PXIe-2575 path inputs, relay driving module PXI-2567 and multiplexer mould
Block PXIe-2575 COM ends are connected to the 24VDC negative ends of power module, so as to constitute loop.
Fig. 3-(A) gives Insulation test hardware architecture diagram, PXI embedded controller controls relay driving modules
PXI-2567 driving high voltage relay plates gate N-1 high voltage relay, realize N-1 tested point short circuit (not including i-th
Individual tested point) purpose；Meanwhile, PXI embedded controller controls multiplexer modules PXIe-2575 drives high pressure resistant relay
Device plate gates i-th of high voltage relay, realizes the purpose of i-th of tested point of selection；Program control insulation tester is controlled to realize again
Tested point applies high direct voltage, Insulation test, and single measurement result is returned into PXI embedded controllers storage processing.
Shown in Fig. 4, the flow chart that test program uses Labview programming realization Insulation test is given.Program enters exhausted
Edge test system, first initializes to program control insulation tester, then test program is initialized again, then performs exhausted
Edge test operation, including following three link：
A) attracting electric relay switching tested point：PXI embedded controller controls relay driving modules PXI-2567 is simultaneously
N-1 high voltage relay of adhesive, control multiplexer module PXIe-2575 gating i-th of relay adhesive, i-th of resistance to height
Potential relay, realizes the purpose of i-th of tested point of N-1 tested point of short circuit and selection.
B) insulation table handling：It is high that PXI embedded controller controls control program control insulation tester to apply direct current to tested point
Pressure, Insulation test, return to the function of single test data；
C) relay is closed：Disconnect the relay of adhesive in a) step；
Circulation perform a), b), c) step, test terminates, and interpretation test result finally exports and preserves test result.
Compared with prior art, patent of the present invention is designed based on PXI platform developments, using modular design concept, is had
Construction cycle is short, good operating stability, the advantages of reliability is high, scalability is good；Software programming is entered using visualization Labview
Row building blocks bridging type programming mode, programming development is simple, and it is convenient to debug；Insulation test control strategy is that single-point insulate to multi-point
Test, substantially reduces the testing time, improves testing efficiency.Realize the automatic of the passive continuity test of cable system and Insulation test
Change test, effectively increase the automatic test level and testing efficiency of cable system test, improved compared with conventional test methodologies efficiency
More than 300%.
Though patent of the present invention is the cable system conducting insulation Auto-Test System based on PXI, it is not limited solely to electricity
Cable net carries out passive continuity test and Insulation test, can also carry out other necks as a kind of general conducting Insulation test platform
The electric performance test in domain.It should be pointed out that for the ordinary skill in the art, not departing from patent of the present invention
On the premise of design, some deformations can also be made and extension is improved, these belong to the protection domain of patent of the present invention.Cause
This, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of cable system conducting insulation Auto-Test System based on PXI, it is characterised in that：Including portable PXI cabinets group
(1), relay switchover combination (13), program control insulation tester (8), test cable (12), printer (4) etc. are closed, wherein, PXI
Cabinet combination (1) includes PXI embedded controllers (3), 3 multiplexer module PXIe-2575 (5), 3 relay drivings
The module such as module PXI-2567 (6), digital multimeter module PXI-4072 (7) and keyboard display combination (2), relay switching
Combine (13) and include high voltage relay plate (9), power module (10) and test cable interconnecting device (11)；
Keyboard display combines (2)：It is the interactive interface of test operation personnel and PXI embedded controllers (3), is embedded in PXI
Formula controller (3) is connected, and the control of observing and controlling instruction hair, test data display function can be achieved；
PXI embedded controllers (3)：It is the control axis of Auto-Test System of the present invention, passes through PXI buses and multiplexer
Module PXIe-2575 (5), relay driving module PXI-2567 (6) and digital multimeter module PXI-4072 (7) communications, lead to
Cross RS432 universal serial bus to communicate with program control insulation tester (8), pass through WALN netting twines and printer communication；
Multiplexer module PXIe-2575 (5)：It is the multiplexer relay switch with the line passage of 196 tunnel 1, wherein 2
Block multiplexer module (5) is connected with PXI embedded controllers (3) and test cable interconnecting device (11), embedding by receiving PXI
Enter the control instruction of formula controller (3), the function that tested point switches in passive continuity test can be achieved；Another piece of multiplexer
Module (5) is connected with PXI embedded controllers (3), high voltage relay plate (9) and power module (10), embedding by receiving PXI
Enter the control instruction of formula controller (3), may be selected and drive single high voltage relay, so as to realize that selection is cut in Insulation test
Change the function of tested point；
Relay driving module PXI-2567 (6)：It is a kind of 64 passage external relay drive module, with PXI embedded Controls
Device (3), high voltage relay plate (9) and power module (10) connection, are referred to by the control for receiving PXI embedded controllers (3)
Order, may be selected and drive multiple high voltage relays, so as to realize the function of selection and the multiple tested points of short circuit in Insulation test；
High voltage relay plate (9)：Highest is pressure-resistant 1000VDC, is connected with power module (10) and test cable interconnecting device (11),
Realize the function of the selection switching of tested point in Insulation test；
Power module (10)：It is connected with high voltage relay plate (9), 24V driving voltages is provided for high voltage relay；
Digital multimeter module PXI-4072 (7)：It is connected, leads to PXI embedded controllers (3) and test cable interconnecting device (11)
The control instruction of reception PXI embedded controllers (3) is crossed, the function such as passive continuity test and test data transmission can be achieved；
Program control insulation tester (8)：It is connected with PXI embedded controllers (3) and test cable interconnecting device (11), by receiving
The control instruction of PXI embedded controllers (3), can be achieved to apply the functions such as high direct voltage, Insulation test and test data transmission；
Test cable interconnecting device (11)：With digital multimeter module PXI-4072 (7), program control insulation tester (8), it is high pressure resistant after
Appliance plate (9), test cable (12) etc. are connected, main turn completed between PXI test control signals and cable system measured signal
Change；
Printer (4)：It is connected with PXI embedded controllers (3), completes test data export printing function.
2. the cable system conducting insulation Auto-Test System according to claim 1 based on PXI, it is characterised in that：Test
Software carries out building blocks bridging type programming mode using visual programming software Labview, utilizes built-in mathematics and signal transacting
Subfunction sets up patterned Virtual Instrument, realizes the automatic test work(of the passive continuity test of cable system and Insulation test
Energy.
3. the cable system conducting insulation Auto-Test System according to claim 1 or 2 based on PXI, it is characterised in that：Should
Invention possesses passive conducting autorun, and its implementation is that PXI embedded controllers (3) control two multiplexers
Module PXIe-2575 (5) completes the selection switching of a pair of tested points in continuity test, then controls digital multimeter module PXI-
4072 (7) measure conducting resistance and single measurements are returned into PXI embedded controllers (3) storage processing.
4. the cable system conducting insulation Auto-Test System according to claim 1 or 2 based on PXI, it is characterised in that：
PXI embedded controllers (3) control relay drive module PXI-2567 (6) driving high voltage relay plates (9) gating N-1
High voltage relay, realizes the purpose of N-1 tested point of short circuit；Meanwhile, PXI embedded controllers (3) control multiplexer
Module PXIe-2575 (5) driving high voltage relay plate (9) gate i-th of high voltage relay, realize selection i-th it is to be measured
The purpose of point；Program control insulation tester (8) is controlled to realize that tested point applies high direct voltage, Insulation test again, and by single measurement
As a result PXI embedded controllers (3) storage processing is returned.
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| CN201710385341.9A CN107037326A (en) | 2017-05-26 | 2017-05-26 | A kind of cable system conducting insulation Auto-Test System based on PXI |
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| CN112578316A (en) * | 2020-12-10 | 2021-03-30 | 上海航天精密机械研究所 | Portable multi-channel automatic conduction testing device and method |
| CN112666497A (en) * | 2020-12-25 | 2021-04-16 | 湖南高至科技有限公司 | Multipurpose conduction insulation test equipment |
| CN112881844B (en) * | 2021-01-26 | 2021-12-10 | 中国科学院微小卫星创新研究院 | Automatic test system for satellite cable network |
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| CN116754908A (en) * | 2023-07-04 | 2023-09-15 | 北京交通大学 | Multichannel conduction insulation test system and test method based on solid-state relay |
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Application publication date: 20170811 |