CN104166087A - Circuit board fault detecting system based on VXI instrument - Google Patents
Circuit board fault detecting system based on VXI instrument Download PDFInfo
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- CN104166087A CN104166087A CN201410410099.2A CN201410410099A CN104166087A CN 104166087 A CN104166087 A CN 104166087A CN 201410410099 A CN201410410099 A CN 201410410099A CN 104166087 A CN104166087 A CN 104166087A
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Abstract
The invention discloses a circuit board fault detecting system based on a VXI instrument. The circuit board fault detecting system based on the VXI instrument comprises a system controller, an IEEE488 programmable instrument, an adapting device, a universal adaptor and a VXI bus mainframe box. The system controller is an externally-mounted main control computer, and the system controller is connected with the VXI bus mainframe box through a GPIB-VXI translator. The main control computer is connected with a displayer. One end of the IEEE488 programmable instrument is connected with the adapting device. The other end of the IEEE488 programmable instrument is connected with the main control computer through a GPIB bus. The IEEE488 programmable instrument is provided with a programmable excitation source. One end of the programmable excitation source is connected with the adapting device. The other end of the programmable excitation source is connected with the main control computer through a GPIB bus. The adapting device is connected with the IEEE488 programmable instrument and the programmable excitation source. The universal adaptor is connected with the adapting device. According to the circuit board fault detecting system with the structure, the debugging time can be shortened, the maintenance quality is improved, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to computer realm, be specifically related to the board failure detection system based on VXI instrument.
Background technology
At present, a lot of Mechatronic control systems have adopted concentrated distributed computer, it is powerful, easy and simple to handle, but configures huge, complicated, the hundreds of printed circuit board comprising is the link easily breaking down, maintainability test technical requirement is high, so not only will expend the plenty of time and get rid of board failure, but also can not guarantee repair quality, when having increased whole maintenance consuming time, also increased whole maintenance cost.
Summary of the invention
The object of the present invention is to provide the board failure detection system based on VXI instrument, solve current board failure and detect more time-consumingly, repair quality can not be guaranteed, the problem that maintenance cost is high.
The present invention for achieving the above object, realizes: the board failure detection system based on VXI instrument, comprises system controller, IEEE488 programmable instrument, breakout box, universal adapter, vxi mainframe case by the following technical solutions;
Described system controller is external hanging type main control computer, and it is connected with vxi mainframe case by GPIB-VXI translater, and main control computer is connected with display;
One end of described IEEE488 programmable instrument is connected with breakout box, the other end is connected with main control computer by gpib bus, described IEEE488 programmable instrument is provided with program control driving source, and one end of program control driving source is connected with breakout box, and the other end is connected with main control computer by gpib bus;
Described breakout box is connected with IEEE488 programmable instrument, program control driving source respectively;
Described universal adapter is connected with breakout box.
Further, as preferred version, this programme also comprises printer, and described printer is connected with main control computer.
Further, as preferred version, this programme also comprises signal generator, and described signal generator is connected with breakout box by cable.
Further, as preferred version, signal generator is DF1631 power function signal generator described in this programme.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) to take system controller, vxi mainframe case and testing tool module thereof be core in the present invention, be aided with part IEEE488 programmable instrument, not only realized the fault detect to circuit board, and localization of fault is arrived to components and parts level, shortened the time of getting rid of board failure, improve repair quality, and then reduced maintenance cost to a certain extent.
(2) the present invention is by linking together main control computer and vxi mainframe case by gpib bus, formed the integrated test system that GPIB and vxi bus mix, VXI cassette surveying instrument equipment and GPIB programmable instrument equipment that system is used meet international standard, standardization, universalization, the degree of modularity are higher, compatible strong, easily carry out system extension and update, for evening and the development of system later laid a solid foundation.
Accompanying drawing explanation
Fig. 1 is system architecture composition frame chart of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment:
As shown in Figure 1, the board failure detection system based on VXI instrument described in the present embodiment, comprises system controller, IEEE488 programmable instrument, breakout box, universal adapter, vxi mainframe case;
System controller is external hanging type main control computer, it is connected with vxi mainframe case by GPIB-VXI translater, main control computer is connected with display, main control computer is selected external hanging type main control computer, in it, join GPIB communication interface card, by GPIB-VXI translater, be connected with vxi mainframe case.Embedded computing machine has that speed is fast, volume is little and the advantage such as easy to use, but its cost is too high and difficult upgrading, therefore still selects external hanging type.
One end of IEEE488 programmable instrument is connected with breakout box, the other end is connected with main control computer by gpib bus, described IEEE488 programmable instrument is provided with program control driving source, and one end of program control driving source is connected with breakout box, and the other end is connected with main control computer by gpib bus; In order to provide stable voltage source to be convenient to again programmed control simultaneously to circuit board under test, select desk-top instrument HPE3631A and HPE3632A as the program control driving source of system.
In vxi mainframe case, adopting HPE1406A command module is zero channel mould piece, and it is connected with external controller by GPIB.VXI translater, has translater and interface function, common system resource is provided and carries out resource management; Adopt HPE1418A (8 passage D/A change) module to provide required simulating signal into circuit board under test; Adopt HPE1458A (96 passage numeral V0) module to be connected with data bus, address bus and the control bus of circuit board under test, to complete the control of circuit board and read-write operation; Adopt HPE1411B (5 Semi-digital multimeters) as signal parameter test module.
Breakout box is connected with IEEE488 programmable instrument, program control driving source respectively, and universal adapter is connected with breakout box.This part is mainly between driving source and surveying instrument equipment and tested object and sets up substantially unified being connected and communication mode.Because circuit under test board type is a lot, only adopt single adapter cannot meet test request, so on the basis being connected with circuit board under test as much as possible at each universal adapter, designed a breakout box.Design breakout box is plug repeatedly and the connection for fear of electric wire and cable when changing universal adapter.The extension line of all driving sources, VXI surveying instrument module is all concentrated and is connected on breakout box, then is connected with universal adapter by 96 pin plug receptacles.Because circuit board under test is standard design, major part all has 96 pin anode plug receptacles, so universal adapter can be connected with multiple circuit board under test again, and fault diagnosis system and circuit board under test connect into complete one the most at last.
The present embodiment also comprises printer, and printer is connected with main control computer.
The present embodiment also comprises signal generator, and signal generator is connected with breakout box by cable, and signal generator is DF1631 power function signal generator.
GPIB (general p11Epose interface bus) is Hewlett-Packard Corporation at a kind of 8 bit parallel interfaces of the invention seventies, it can make upper frame type and desk-top instrument mutual, and and host computer between communicate.Due to its simple and flexible, this interface is used in nearly all instrument manufacturing commercial city, and [mouth, until today, it is still the first-selected interface of the Auto-Test System consisting of independent instrument.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, and any simple modification, equivalent variations that every foundation technical spirit of the present invention is done above embodiment, within all falling into protection scope of the present invention.
Claims (4)
1. the board failure detection system based on VXI instrument, is characterized in that: comprise system controller, IEEE488 programmable instrument, breakout box, universal adapter, vxi mainframe case;
Described system controller is external hanging type main control computer, and it is connected with vxi mainframe case by GPIB-VXI translater, and main control computer is connected with display;
One end of described IEEE488 programmable instrument is connected with breakout box, the other end is connected with main control computer by gpib bus, described IEEE488 programmable instrument is provided with program control driving source, and one end of program control driving source is connected with breakout box, and the other end is connected with main control computer by gpib bus;
Described breakout box is connected with IEEE488 programmable instrument, program control driving source respectively;
Described universal adapter is connected with breakout box.
2. the board failure detection system based on VXI instrument according to claim 1, is characterized in that: also comprise printer, described printer is connected with main control computer.
3. the board failure detection system based on VXI instrument according to claim 1, is characterized in that: also comprise signal generator, described signal generator is connected with breakout box by cable.
4. the board failure detection system based on VXI instrument according to claim 3, is characterized in that: described signal generator is DF1631 power function signal generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410099.2A CN104166087A (en) | 2014-08-20 | 2014-08-20 | Circuit board fault detecting system based on VXI instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410099.2A CN104166087A (en) | 2014-08-20 | 2014-08-20 | Circuit board fault detecting system based on VXI instrument |
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| Publication Number | Publication Date |
|---|---|
| CN104166087A true CN104166087A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410410099.2A Pending CN104166087A (en) | 2014-08-20 | 2014-08-20 | Circuit board fault detecting system based on VXI instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977526A (en) * | 2015-07-27 | 2015-10-14 | 佛山市中格威电子有限公司 | Universal test fixture for air conditioner |
| CN109406868A (en) * | 2018-12-21 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | Circuit board, system and program-controlled power signal device applied to simulated failure detection |
| CN109407041A (en) * | 2018-12-21 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of simulated failure detection circuit board and simulated failure detection system |
-
2014
- 2014-08-20 CN CN201410410099.2A patent/CN104166087A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977526A (en) * | 2015-07-27 | 2015-10-14 | 佛山市中格威电子有限公司 | Universal test fixture for air conditioner |
| CN109406868A (en) * | 2018-12-21 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | Circuit board, system and program-controlled power signal device applied to simulated failure detection |
| CN109407041A (en) * | 2018-12-21 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of simulated failure detection circuit board and simulated failure detection system |
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Application publication date: 20141126 |
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| WD01 | Invention patent application deemed withdrawn after publication |