CN205958681U - Signal testing system based on PXI bus - Google Patents
Signal testing system based on PXI bus Download PDFInfo
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- CN205958681U CN205958681U CN201621016224.2U CN201621016224U CN205958681U CN 205958681 U CN205958681 U CN 205958681U CN 201621016224 U CN201621016224 U CN 201621016224U CN 205958681 U CN205958681 U CN 205958681U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
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- 238000004891 communication Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
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Abstract
The utility model discloses a signal testing system based on PXI bus belongs to electronic equipment and measures the field. Including display, signal conditioning case, PXI computer, PXI integrated circuit board, adapter, power, cable, interface arrangement, signal testing device, the PXI integrated circuit board is pegged graft in the inside expansion slot of PXI computer, display and PXI computer link, and signal conditioning case, adapter, power be separated sets respectively, and the signal conditioning integrated circuit board is placed to the signal conditioning incasement, signal conditioning board card, signal testing device, interface arrangement, power, PXI computer pass through cable connection adapter respectively. The utility model discloses a modularization is handled, and with the integrated circuit board and the device classification place of different grade type, the rethread adapter is integrated the device of different grade type together, inside will walking that the line is whole and placing the adapter, has not only reduced the outside of system and has walked the line, and the messenger system is more pleasing to the eye, has reduced the cost of maintenance of system moreover.
Description
Technical field
The utility model belongs to a kind of test system, specifically, more particularly, to a kind of signal testing based on PXI bus
System.
Background technology
PXI is a kind of firm measurement based on PC and automation platform, PXI combine the electric bus feature of PCI with
The characteristic of the robustness of CompactPCI, modularization and Eurocard mechanical encapsulation, and increased special synchronous bus and master
Want software feature.This makes PXI become measurement and the high-performance of automated system, inexpensive carrying platform.PXI system can be used for all
As manufactured in test, military affairs and the various field such as aviation, machine monitors, automobile production and industrial test.
In each field, the virtual instrument board of PXI bus is widely used at present.The signal type kind such as similar aircraft
Class is complicated, the various equipment of quantity, is from the special equipment grinding by traditional instrument with some mostly to its method of testing at present
The method of testing combining, test equipment is bulky, and single function is it is impossible to the synchronization detection meeting all signals requires, same
When the interface detected can only be single display numeral or waveform it is impossible to realize the abundant interface display such as numeral, figure and waveform
Demand.Because if when signal type and quantity are more, desired signal conditioning plate quantity increases therewith, is all placed in adaptive box
Portion, can lead to adaptation box body huge, troubleshooting difficulty.
Utility model content
The utility model purpose is to provide a kind of signal test system based on PXI bus, is surveyed with overcoming in prior art
Examination equipment volume is huge, and single function is it is impossible to meet the defect of the synchronization detection requirement of all signals.
The utility model employs the following technical solutions realization：A kind of signal test system based on PXI bus, including
Display, signal process box, PXI computer, PXI board, adapter, power supply, cable, interface arrangement, signal-testing apparatus, institute
State PXI board to be plugged in the expansion slot of PXI computer-internal, described display is connected with PXI computer, described signal condition
Case, adapter, power supply are individually separated setting, placement signal condition board in described signal process box, described signal condition board,
Signal-testing apparatus, interface arrangement, power supply, PXI computer connect adapter respectively by cable.
Also include load simulating device, described load simulating device is connected with adapter.
Described cable is arranged in cable drawer.
Compared with prior art, the beneficial effects of the utility model are：
1) the utility model adopts modularized processing, different types of board and device classification is placed, can arrange more
Many signal condition board quantity, it is achieved thereby that the test of more signal with different type, then by intermediate structures such as adapters
By different types of device integration to together, cabling is all placed into adapter inner, the outside not only reducing system is walked
Line, makes system more attractive in appearance, and reduces the maintenance cost of system；
2) the utility model utilizes PXI bus structures, can difference according to demand, place different PXI boards, realize
The detection of signal with different type, enhances the versatility of equipment；
3) in the utility model, adapter functions only as distribution and the transmitting effect of signal, and internal do not have signal regulating panel
And the device such as integrated power supply, more signal condition board quantity can be arranged, thus realizing more signal with different type
Test.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the signal flow graph of the utility model test system.
In figure：1st, display；2nd, signal process box；3rd, PXI computer；4th, load simulating device；5th, cable drawer；6th, electricity
Source；7th, signal-testing apparatus.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of signal test system based on PXI bus, including display 1, signal process box 2, PXI meter
Calculation machine 3, PXI board, adapter, power supply 6, cable, signal-testing apparatus 7, interface arrangement, described PXI board is plugged on PXI meter
In expansion slot within calculation machine 3, described display 1 is connected with PXI computer 3, described signal process box 2, adapter, power supply 6
It is separately positioned in respectively in different body structures, in described signal process box 2, place signal condition board, described signal condition
Board, signal-testing apparatus 7, interface arrangement, power supply 6, PXI computer 3 connect adapter respectively by cable.
Described PXI computer 3 is the core of whole test system, can place different types of PXI according to semaphore request
Board, realizes all standing of signal；Described adapter is the key of whole test system, is responsible for the same signal of diverse location
Connect together, also act as the shunting action of signal, reduce the outside cabling of whole system, make whole system more directly perceived, high
Effect；Described signal regulating panel is the extension of whole test system and upgrading it is achieved that the realization of various different demands signal.
Preferably, up to 50 modules can be placed in adapter, and each module can provide inserting of up to 296 cores
Pin, can easily realize the test on the same stage of all kinds signal, and the PXI hardware board involved by the utility model is ripe base
In the goods shelf productses of PXI bus, each board technology maturation, reliability is high.
Preferably, described cable is placed in cable drawer 5, and cable drawer 5 carries out to cable arranging storage, it is to avoid electricity
The mixed and disorderly discharge of cable, makes system appearance more attractive in appearance.
Preferably, the utility model also includes load simulating device 4, and described load simulating device 4 is connected with adapter, bears
Carry analogue means and be mainly used in calibration tape load input signal, be the supplement to signal condition board function.
As shown in Fig. 2 when signal testing is carried out using the test system of Fig. 1, needing the letter of each port of clear and definite unit under test
Number definition and parameter, only parameter clearly could select suitable process circuit, the corresponding signal regulating panel of making, tester couple
Signal flow direction needs clearly, to malfunction once test or can find error place when inaccurate as early as possible, at system
Reason and reparation, the concrete method of testing of various types of signal is as follows：
1st, on-off model：
The control of on-off model adopt PXI single-pole single-throw(SPST relay board, by the two ends of switch be connected respectively to by
Survey the two ends of signal, realize the test of on-off model by the break-make of program control switch.
2nd, DC quantity signal
DC quantity signal is divided into many types, such as pressure signal, d. c. voltage signal, DC current signal, thermocouple
Signal etc., can realize simulation and the test of signal by the change of voltage or electric current, and the height of PXI is selected in the test of direct current signal
Fast voltage output board, not only signal stabilization and also precision is controlled, can preferably realize simulation and the test of DC quantity signal.
3rd, resistance signal
Resistance signal is primarily referred to as the difference according to environment and condition for the unit under test needs, produces different resistance values, leads to
Cross resistance and produce board, realize the input of different valued resistor, realize simulation and the test of resistance signal.
4th, frequency signal
Frequency signal is mainly used for the signal of measure the cycle change, exports fixed frequency value by board and simulates frequency
Rate signal, realizes the test of some signals by the frequency reading or testing output.
5th, band carries input signal
Refer to gather voltage or the current signal that unit under test exports with carrying input signal, by load simulating device 4 mould
Intend the size of external loading, realize the test to signal output ability and acquisition capacity.
6th, communication signal
Realize the communication of host computer and unit under test by Communication Card, lead to including RS232, RS422, RS485, network etc.
Communication function all can be simulated and be tested.
Claims (3)
1. a kind of signal test system based on PXI bus, including display (1), signal process box (2), PXI computer (3),
PXI board, adapter, power supply (6), cable, signal-testing apparatus (7), interface arrangement it is characterised in that：Described PXI board is inserted
It is connected in the internal expansion slot of PXI computer (3), described display (1) is connected with PXI computer (3), described signal process box
(2), adapter, power supply (6) are individually separated setting, place signal condition board in described signal process box (2), and described signal is adjusted
Reason board, signal-testing apparatus (7), interface arrangement, power supply (6), PXI computer (3) connect adapter respectively by cable.
2. a kind of signal test system based on PXI bus according to claim 1 it is characterised in that：Also include loading
Analogue means (4), described load simulating device (4) is connected with adapter.
3. a kind of signal test system based on PXI bus according to claim 1 and 2 it is characterised in that：Described cable
It is arranged in cable drawer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621016224.2U CN205958681U (en) | 2016-08-31 | 2016-08-31 | Signal testing system based on PXI bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621016224.2U CN205958681U (en) | 2016-08-31 | 2016-08-31 | Signal testing system based on PXI bus |
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| Publication Number | Publication Date |
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| CN205958681U true CN205958681U (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621016224.2U Active CN205958681U (en) | 2016-08-31 | 2016-08-31 | Signal testing system based on PXI bus |
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| Country | Link |
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| CN (1) | CN205958681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106933215A (en) * | 2017-03-09 | 2017-07-07 | 北京宇航系统工程研究所 | A kind of telemetry system external tapping generalized equivalent device based on PXI buses |
| CN110764436A (en) * | 2019-10-29 | 2020-02-07 | 海鹰企业集团有限责任公司 | Automated testing equipment, control method and control device for shooting inspection table |
-
2016
- 2016-08-31 CN CN201621016224.2U patent/CN205958681U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106933215A (en) * | 2017-03-09 | 2017-07-07 | 北京宇航系统工程研究所 | A kind of telemetry system external tapping generalized equivalent device based on PXI buses |
| CN106933215B (en) * | 2017-03-09 | 2020-02-14 | 北京宇航系统工程研究所 | PXI bus-based universal equivalent device for external interface of telemetry system |
| CN110764436A (en) * | 2019-10-29 | 2020-02-07 | 海鹰企业集团有限责任公司 | Automated testing equipment, control method and control device for shooting inspection table |
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