CN104166046A - Transient signal processing method and transient signal processing system - Google Patents
Transient signal processing method and transient signal processing system Download PDFInfo
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Abstract
The invention discloses a transient signal processing method and a transient signal processing system. The system comprises a plurality of acquisition cards respectively connected to a tested device and used for synchronously acquiring a transient signal transmitted by the tested device, and a controller connected with the acquisition cards through a PXIe bus and used for triggering the plurality of acquisition cards to start transient signal acquisition. By adopting the transient signal processing method and the transient signal processing system, high adoption rate and high sampling precision of an acquisition system can be achieved.
Description
Technical field
The present invention relates to field of power, in particular to a kind of disposal route and system of transient signal.
Background technology
The transient signal of electric system refer to some duration shorter, sudden change with the signal of transient state.Generally need higher sampling rate to gather, in addition in the acquisition applications of the transient signal of a lot of electric system, often require to realize multichannel high-speed synchronous collection, such as whether the each device in the power electronic devices group in order to analyze multiple series connection all presses in the process turning on and off, need to monitor the voltage of each device, and the device count of series connection exceedes 4 conventionally, the port number that collection signal needs is more than 4; And for example, in the grid-connected experimentation of generator car, need to carry out high-speed synchronous collection to the voltage and current of multiple measuring points, gather the port number needing more than 4.The cost of carrying out a test in electric system generally all higher simultaneously, often wishes to record the test figure of long period, to carry out follow-up analysis and processing.
The common method that gathers transient signal is to utilize desk-top oscillograph to carry out collection and the record of electric system transient signal.But the port number of common desk-top oscillograph energy synchronous acquisition is few, general maximum can only synchronous acquisition 4 channel signals, in the time that needs gather the above signal of 4 passage, desk-top oscillograph cannot carry out multichannel collecting.And desk-top oscillographic data storage capacity is low, generally in several megabyte of every passage (MB), under the condition of high sampling rate, can only store the data of very short time.
The problem that cannot meet at present the collection of multi channel signals for the mode of electric system collection transient signal in correlation technique, not yet proposes effective solution at present.
Summary of the invention
Cannot meet the problem of the collection of multi channel signals for the mode of electric system collection transient signal in correlation technique, effective solution is not yet proposed at present, for this reason, fundamental purpose of the present invention is to provide a kind of disposal route and device of transient signal, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of disposal system of transient signal, this system comprises: multiple capture cards, are connected to device under test, the transient signal sending for synchronous acquisition device under test; Controller, is connected with each capture card by PXIe bus, starts to start collection transient signal for triggering multiple capture cards.
To achieve these goals, according to a further aspect in the invention, provide a kind of disposal route of transient signal, the method comprises: controller triggers multiple capture cards and starts collection transient signal; The transient signal that multiple capture card synchronous acquisition device under tests send.
By the present invention, adopt multiple capture cards, be connected to device under test, the transient signal sending for synchronous acquisition device under test; Controller, be connected with each capture card by PXIe bus, be used for triggering multiple capture cards and start to start collection transient signal, solve the problem that mode that electric system in related art gathers transient signal cannot meet the collection of multi channel signals, and then realized by hyperchannel and gather transient signal, realize the effect of the high employing rate of acquisition system, high sampling precision.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the structural representation of the disposal system of the transient signal of the embodiment of the present invention;
Fig. 2 is according to the process flow diagram of the disposal route of the transient signal of the embodiment of the present invention.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Before describing the further details of various embodiments of the present invention, a suitable counting system structure of the principle can be used in the present invention is described with reference to Fig. 1.In the following description, except as otherwise noted, otherwise represent to describe various embodiments of the present invention with reference to the symbol of the action of being carried out by one or more computing machines and operation.Thus, be appreciated that and be sometimes called as this class action of computing machine execution and operate the processing unit that comprises computing machine to represent the manipulation of the electric signal of data with structured form.This manipulation transforms on data or the position in the accumulator system of computing machine, safeguard it, the operation of computing machine is reshuffled or changed to this mode of all understanding with those skilled in the art.The data structure of service data is the physical location with the storer of the defined particular community of form of data.But although describe the present invention in above-mentioned context, it does not also mean that restrictively, as understood by those skilled in the art, the each side of hereinafter described action and operation also available hardware realizes.
Turn to accompanying drawing, wherein identical reference number refers to identical element, and principle of the present invention is shown in a suitable computing environment and realizes.Below describe the embodiments of the invention based on described, and should not think to limit the present invention about the alternative embodiment of clearly not describing herein.
Fig. 2 shows the schematic diagram of an example computer architecture that can be used for these equipment.For purposes of illustration, the architecture of painting only, for an example of proper environment, not proposes any limitation to usable range of the present invention or function.This computing system should be interpreted as to the arbitrary assembly shown in Fig. 2 or its combination are had to any dependence or demand yet.
In its most basic configuration, Fig. 1 is according to the structural representation of the disposal system of the transient signal of the embodiment of the present invention.Describe according to figure below.
As shown in Figure 1, the disposal system of this transient signal can comprise: multiple capture cards and a controller.
Wherein, multiple capture cards, are connected to device under test, the transient signal sending for synchronous acquisition device under test.Concrete, device under test can be tested object 4, capture card gathers the signal data of tested object 4 transient signals.System can arrange multiple draw-in grooves, for each capture card is arranged on respectively to corresponding draw-in groove.
Controller, is connected with each capture card by PXIe bus, starts to start collection transient signal for triggering multiple capture cards.
As from the foregoing, in the disposal system of the transient signal of the electric system that the above embodiments of the present application provide, high-speed multiple channel synchronous acquisition part is by PXIe controller, high-speed synchronous capture card, PXIe bus composition, polylith high-speed synchronous capture card is connected by high speed PXIe bus with PXIe controller, complete the high-speed multiple channel synchronous acquisition function to tested object, realized by the each capture card of controller control and carried out synchronous acquisition transient signal, for example, analyze multiple series connection power electronic devices group in each device in the process turning on and off, whether all press, voltage or electric current that now transient signal is each power electronic devices, because the data of capture card are prolongable, and controller control capture card is synchronous acquisition, therefore, solve the problem that mode that electric system in prior art gathers transient signal cannot meet the collection of multi channel signals, and then realize by hyperchannel and gathered transient signal, realize the high employing rate of acquisition system, the effect of high sampling precision, so that follow-up processing and analysis.
Preferably, one's own profession is gloomy goes the capture card in above-described embodiment can adopt high-speed synchronous capture card, by the high speed acquisition passage on high-speed synchronous capture card, tested object is carried out to multichannel collecting, more than the sampling rate of high-speed synchronous capture card can reach 1GS/s.
Wherein, multiple draw-in grooves that system provides comprise one or more expansion draw-in grooves, can one or more cards need to be installed according to the signals collecting of tested object.And PXIe bus is connected respectively with multiple draw-in grooves, wherein, multiple capture cards are connected with PXIe bus via a draw-in groove in multiple draw-in grooves respectively.In this embodiment, multiple capture cards can be arranged on respectively on multiple draw-in grooves of PXI system, can realize the multichannel synchronousing collection of transient signal.
Concrete, the scheme that the above embodiments of the present application provide, for the application of electric system multichannel transient signal synchronous acquisition and record, a kind of hyperchannel, high-precise synchronization, big data quantity flow table are provided, be easy to expansion electric system transient signal multichannel synchronousing collection and pen recorder.
Electric system transient signal multichannel synchronousing collection and pen recorder that the present invention proposes, based on PXI system and PXIe bussing technique, be made up of PXIe bus, PXIe controller, high-speed synchronous capture card, magnetic disc array interface card and disk array, its structure as shown in Figure 1.The present invention has adopted PXIe bussing technique of new generation, and than the PXI bus of 132MB/s, PXIe bus bandwidth can reach several GB/s.Making bus transfer speed faster than disk read-write speed, is no longer the bottleneck of acquisition and recording equipment.
The high-speed synchronous capture card based on PXIe of simultaneously selecting in the present invention, its sampling rate can meet or exceed the sampling rate of desk-top oscillograph up-sampling passage, the highlyest can reach several GS/s.Framework based on PXIe system simultaneously, system is easily expanded, the spreading number upper limit is limited by PXIe cabinet slot count only, PXIe cabinet can be inserted at most 17 capture cards, in 2 high speed acquisition passages of every card, a device can high-speed synchronous gather 34 passages at most, considerably beyond common desk-top oscillograph.
On PXIe controller, be furnished with CPU and the Windows operating system of multinuclear, it is coordination and the command centre of whole acquisition system, is responsible for the operation of capture program and man-machine interface program.
Preferably, the controller in the above embodiments of the present application can comprise: treating apparatus is reference signal for the synchronous clock taking PXIe bus, and the sampling clock that each capture card is set is identical proportion; Control device, for sending collection signal to each synchronous collecting card according to proportion, gathers transient signal to trigger to start.
Concrete, said system device of the present invention is supported two kinds of drainage patterns, the one, the collection of the short time frame based on trigger pip, the shortcoming of this acquisition mode is the omission that has data between Frame and Frame, but it is little that advantage is data volume, data show that load is light, is suitable for the application of collection limit, limit Real Time Observation waveform; The 2nd, the long high-speed and continuous based on disk array gathers continuous recording, and this acquisition mode is suitable for wishing the whole process of the test data of complete documentation, then the occasion of ex-post analysis.
In the present invention, data acquisition function is completed by PXIe controller, high-speed synchronous capture card, PXIe bus, and PXIe controller is connected by high speed PXIe bus with high-speed synchronous capture card.Concrete, the difficult point of synchronized sampling clock in gathering for high-speed synchronous, can adopt PHASE-LOCKED LOOP PLL TECHNIQUE, treating apparatus is taking the synchronous clock of PXIe bus as reference signal, arrange each capture card sampling clock is separately locked in to sample frequency by point frequency multiplication in phaselocked loop, completed like this synchronous of sampling clock between each capture card.
Preferably, the application's said system can also comprise: magnetic disc array interface card, is connected the transient signal collecting for forwarding each synchronous collecting card with each synchronous collecting card by PXIe bus; Disk array, is connected with magnetic disc array interface card, for receiving and preserve transient signal.
Hence one can see that, the high-speed data recording part of the above embodiments of the present application is made up of magnetic disc array interface card and disk array, magnetic disc array interface card is connected with PXI system other parts by high speed PXIe bus, magnetic disc array interface card is connected by high speed data transmission line with disk array, completes high-speed data recording function.
Preferably, magnetic disc array interface card can be arranged in multiple draw-in grooves, is connected with PXIe bus.
Concrete, the high-speed data recording function providing in the present invention is completed by magnetic disc array interface card and disk array.By high speed PXIe bus, high-speed synchronous capture card is by the data transmission collecting to magnetic disc array interface card, and magnetic disc array interface card transmits data by high-speed data alignment disk array, completes the record of data.Than traditional hard disk, the data of disk array are dispersed on polylith hard disk, and polylith hard disk access simultaneously, therefore speed can reach tens times of traditional single hard disk, disk array application RAID array (RAID) technology simultaneously, by multiple disk composition disk groups, coordinates the design of data dispersed arrangement, in ensureing fast reading and writing reaction, promote the security of data by redundancy mirror image etc.
System provided by the present invention, based on PXIe bussing technique, meet the performance requirements such as hyperchannel, high sampling precision, high synchronization accuracy, high speed flow table, and the one-piece construction of system has the features such as dirigibility, reliability, high-performance.
Therefore, harvester provided by the present invention also can have the function of record, thereby, harvester of the present invention also can be used as electric system transient signal multichannel synchronousing collection and pen recorder, be divided into high-speed multiple channel synchronous acquisition part and high-speed record part, formed by PXI system, disk array 6, display 8 and tested object 4, wherein PXI system further comprises: PXIe bus 1, PXIe controller 2, high-speed synchronous capture card 3, magnetic disc array interface card 5, gather and be connected with PXIe controller 2 with the display 8 in pen recorder.
High-speed multiple channel synchronous acquisition part is made up of PXIe controller, high-speed synchronous capture card, PXIe bus, and polylith high-speed synchronous capture card is connected by high speed PXIe bus with PXIe controller, completes the high-speed multiple channel synchronous acquisition function to tested object.
High-speed data recording part is made up of magnetic disc array interface card and disk array, magnetic disc array interface card is connected with PXI system other parts by high speed PXIe bus, magnetic disc array interface card is connected by high speed data transmission line with disk array, completes high-speed data recording function.
In addition, the system of the above embodiments of the present application can also comprise: a display, is connected with controller, for the transient signal that shows that the device under test that collects sends.
As an example of three-phase inverter example, the system to the application is described in detail below.Be that acquisition target is three-phase inverter, transient signal is 6 road voltage and currents under three-phase inverter duty and malfunction.
In the present invention, 6 road voltage and current high-speed synchronous under three-phase inverter duty and malfunction gather and record ripple.The present invention has successfully recorded the voltage and current signal of three-phase inverter.And transient voltage under malfunction and the details waveform of electric current are successfully caught and have recorded.
In the present invention, the high-speed synchronous collection of the grid-connected Shi 12 road voltage and current signals of multiple generator car and record ripple.The present invention successfully gathers and has recorded following experimental data: three generator car unit startings, grid-connected, loading, unloading, fault, automatically start, automatically suspension, off-grid, event and two generator car unit startings, grid-connected, loading, unloading, the fault such as stop, automatically starting, automatically suspension, off-grid, the event such as stop.
Preferably, this transient signal harvester is except comprising that capture card 3 and PXI system, PXI system also comprises PXIe bus 1, PXIe controller 2, and transient signal harvester also comprises display 8, magnetic disc array interface card 5 and disk array 6.PXIe bus 1 is connected respectively with multiple draw-in grooves, for data transmission, more than PXIe bus 1 bandwidth can reach 1GB/s, thereby guarantee that bus transfer speed is faster than disk read-write speed, make the record of data not be subject to the impact of data rate, in high-speed synchronous gathers, taking the synchronous clock of PXIe bus 1 as reference signal, arrange each capture card sampling clock is separately locked in to sample frequency by point frequency multiplication in phaselocked loop, thereby complete the synchronous of sampling clock between each capture card.PXIe controller 2 is connected with PXIe bus 1, is furnished with CPU and the Windows operating system of multinuclear, for the operation of capture program and man-machine interface program on PXIe controller 2.Display 8 is connected with PXIe controller 2, for operation display interface and observation signal waveform.Magnetic disc array interface card 5 is arranged on the draw-in groove of PXI system, is connected with PXIe bus 1, and capture card sends the data that collect to magnetic disc array interface card 5 by PXIe bus 1, and magnetic disc array interface card 5 sends data to disk array 6 again.Disk array 6 is connected with magnetic disc array interface card 5, the data that send for recording disc array interface card 5, the data of disk array 5 are dispersed on polylith hard disk, and polylith hard disk access simultaneously, application RAID array (RAID) technology, disk array 5, by multiple disk composition disk groups, coordinates the design of data dispersed arrangement, can, in ensureing fast reading and writing reaction, promote the security of data by redundancy mirror image etc.
Further, magnetic disc array interface card 5 is connected by high speed data transmission line 7 with disk array 6.
Transient signal harvester in the preferred embodiment is supported two kinds of drainage patterns, a kind of pattern is the collection of the short time frame based on trigger pip, this acquisition mode is applicable to collection limit, limit Real Time Observation signal waveform, another kind of pattern is the long high-speed and continuous collection based on disk array, and this acquisition mode is applicable to the whole gatherer process data of complete documentation to carry out ex-post analysis.
As can be seen from the above description, the PXIe bussing technique of the present invention program based on ripe, has higher reliability.Realize according to application scenario extended channel number, carried out the technique effect of multichannel synchronousing collection.Can expand easily the performance of front-end collection: port number, sampling rate, bandwidth, precision etc., the disk array capacity of rear end is easily expansion also.Further, because based on high performance PXI platform and PXIe bus, so the Performance Ratio of entire system is higher, the present invention can meet the performance requirement that high sampling rate, high sampling precision, high synchronization accuracy, high speed flow table, memory capacity are high and storage time is long simultaneously.
Fig. 2 is that the method comprises the steps: as shown in Figure 2 according to the process flow diagram of the disposal route of the transient signal of the embodiment of the present invention
Step S102, controller triggers multiple capture cards and starts collection transient signal.
Step S104, the transient signal that the above-mentioned device under test of each capture card synchronous acquisition sends.
As from the foregoing, in the disposal system of the transient signal of the electric system that the above embodiments of the present application provide, high-speed multiple channel synchronous acquisition part is by PXIe controller, high-speed synchronous capture card, PXIe bus composition, polylith high-speed synchronous capture card is connected by high speed PXIe bus with PXIe controller, complete the high-speed multiple channel synchronous acquisition function to tested object, realized by the each capture card of controller control and carried out synchronous acquisition transient signal, for example, analyze multiple series connection power electronic devices group in each device in the process turning on and off, whether all press, voltage or electric current that now transient signal is each power electronic devices, because the data of capture card are prolongable, and controller control capture card is synchronous acquisition, therefore, solve the problem that mode that electric system in prior art gathers transient signal cannot meet the collection of multi channel signals, and then realize by hyperchannel and gathered transient signal, realize the high employing rate of acquisition system, the effect of high sampling precision, so that follow-up processing and analysis.
Preferably, one's own profession is gloomy goes the capture card in above-described embodiment can adopt high-speed synchronous capture card, by the high speed acquisition passage on high-speed synchronous capture card, tested object is carried out to multichannel collecting, more than the sampling rate of high-speed synchronous capture card can reach 1GS/s.
Wherein, multiple draw-in grooves that system provides comprise one or more expansion draw-in grooves, can one or more cards need to be installed according to the signals collecting of tested object.And PXIe bus is connected respectively with multiple draw-in grooves, wherein, multiple capture cards are connected with PXIe bus via a draw-in groove in multiple draw-in grooves respectively.In this embodiment, multiple capture cards can be arranged on respectively on multiple draw-in grooves of PXI system, can realize the multichannel synchronousing collection of transient signal.
Electric system transient signal multichannel synchronousing collection and pen recorder that the present invention proposes, based on PXI system and PXIe bussing technique, be made up of PXIe bus, PXIe controller, high-speed synchronous capture card, magnetic disc array interface card and disk array, its structure as shown in Figure 1.The present invention has adopted PXIe bussing technique of new generation, and than the PXI bus of 132MB/s, PXIe bus bandwidth can reach several GB/s.Making bus transfer speed faster than disk read-write speed, is no longer the bottleneck of acquisition and recording equipment.
The high-speed synchronous capture card based on PXIe of simultaneously selecting in the present invention, its sampling rate can meet or exceed the sampling rate of desk-top oscillograph up-sampling passage, the highlyest can reach several GS/s.Framework based on PXIe system simultaneously, system is easily expanded, the spreading number upper limit is limited by PXIe cabinet slot count only, PXIe cabinet can be inserted at most 17 capture cards, in 2 high speed acquisition passages of every card, a device can high-speed synchronous gather 34 passages at most, considerably beyond common desk-top oscillograph.
Preferably, controller triggers multiple capture cards and starts the step that gathers transient signals and comprise the steps: that synchronous clock taking PXIe bus is as reference signal, and the sampling clock that each capture card is set is identical proportion; Send collection signal to each synchronous collecting card according to proportion, gather transient signal to trigger to start.Wherein, in above-described embodiment, capture card adopts indirect acquisition mode and continuity way.
Concrete, said system device of the present invention is supported two kinds of drainage patterns, the one, the collection of the short time frame based on trigger pip, the shortcoming of this acquisition mode is the omission that has data between Frame and Frame, but it is little that advantage is data volume, data show that load is light, is suitable for the application of collection limit, limit Real Time Observation waveform; The 2nd, the long high-speed and continuous based on disk array gathers continuous recording, and this acquisition mode is suitable for wishing the whole process of the test data of complete documentation, then the occasion of ex-post analysis.
In the present invention, data acquisition function is completed by PXIe controller, high-speed synchronous capture card, PXIe bus, and PXIe controller is connected by high speed PXIe bus with high-speed synchronous capture card.Concrete, the difficult point of synchronized sampling clock in gathering for high-speed synchronous, can adopt PHASE-LOCKED LOOP PLL TECHNIQUE, treating apparatus is taking the synchronous clock of PXIe bus as reference signal, arrange each capture card sampling clock is separately locked in to sample frequency by point frequency multiplication in phaselocked loop, completed like this synchronous of sampling clock between each capture card.
Preferably, after the transient signal sending at multiple capture card synchronous acquisition device under tests, method can also comprise the steps: that the transient signal each synchronous collecting card being collected by magnetic disc array interface card spreads out of to disk array.
Hence one can see that, the high-speed data recording part of the above embodiments of the present application is made up of magnetic disc array interface card and disk array, magnetic disc array interface card is connected with PXI system other parts by high speed PXIe bus, magnetic disc array interface card is connected by high speed data transmission line with disk array, completes high-speed data recording function.
Preferably, magnetic disc array interface card can be arranged in multiple draw-in grooves, is connected with PXIe bus.
Concrete, the high-speed data recording function providing in the present invention is completed by magnetic disc array interface card and disk array.By high speed PXIe bus, high-speed synchronous capture card is by the data transmission collecting to magnetic disc array interface card, and magnetic disc array interface card transmits data by high-speed data alignment disk array, completes the record of data.Than traditional hard disk, the data of disk array are dispersed on polylith hard disk, and polylith hard disk access simultaneously, therefore speed can reach tens times of traditional single hard disk, disk array application RAID array (RAID) technology simultaneously, by multiple disk composition disk groups, coordinates the design of data dispersed arrangement, in ensureing fast reading and writing reaction, promote the security of data by redundancy mirror image etc.
Preferably, trigger after multiple capture cards start and gather transient signals at controller, method can also comprise the steps: to show by display the transient signal that the device under test that collects sends.
It should be noted that, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the process flow diagram of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
As can be seen from the above description, the present invention has realized following technique effect:
1) reliability is high: the PXIe bussing technique of scheme based on ripe, has higher reliability.
2) extensibility: the performance that can expand easily front-end collection: port number, sampling rate, bandwidth, precision etc., the disk array capacity of rear end is easily expansion also.
3) high-performance: because based on high performance PXI platform and PXIe bus, so the Performance Ratio of entire system is higher, can simultaneously meet the performance requirements such as high sampling rate, high sampling precision, high synchronization accuracy, large buffer memory, high speed flow table and long-time flow table.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.Especially,, for system embodiment, because it is substantially similar in appearance to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
The application can be used in numerous general or special purpose computingasystem environment or configuration.For example: personal computer, server computer, handheld device or portable set, laptop device, multicomputer system, system based on microprocessor, set top box, programmable consumer-elcetronics devices, network PC, small-size computer, mainframe computer, the distributed computing environment that comprises above any system or equipment etc.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a disposal system for transient signal, is characterized in that, comprising:
Multiple capture cards, are connected to device under test, the transient signal sending for device under test described in synchronous acquisition;
Controller, is connected with capture card described in each by PXIe bus, starts to start the described transient signal of collection for triggering described multiple capture card.
2. system according to claim 1, is characterized in that, described controller comprises:
Treating apparatus, is reference signal for the synchronous clock taking described PXIe bus, and the sampling clock that described each capture card is set is identical proportion;
Control device, for sending collection signal to described each synchronous collecting card according to described proportion, gathers described transient signal to trigger to start.
3. system according to claim 2, is characterized in that, described system also comprises:
Magnetic disc array interface card, is connected with synchronous collecting card described in each by described PXIe bus, the transient signal collecting for forwarding described each synchronous collecting card;
Disk array, is connected with described magnetic disc array interface card, for receiving and preserve described transient signal.
4. system according to claim 3, is characterized in that, described system also comprises:
Display, is connected with described controller, for the transient signal that shows that the described device under test that collects sends.
5. according to the system described in any one in claim 1 to 4, it is characterized in that, in described system, be provided with multiple draw-in grooves, described each capture card is arranged on respectively on described draw-in groove.
6. system according to claim 5, is characterized in that, described PXIe bus is connected respectively with described multiple draw-in grooves, and wherein, described multiple capture cards are connected with described PXIe bus via a draw-in groove in described multiple draw-in grooves respectively.
7. system according to claim 6, is characterized in that, described magnetic disc array interface card is arranged in described multiple draw-in groove, is connected with described PXIe bus.
8. a disposal route for transient signal, is characterized in that, comprising:
Controller triggers multiple capture cards and starts collection transient signal;
The described transient signal that described multiple capture card synchronous acquisition device under test sends.
9. method according to claim 8, is characterized in that, the step that controller triggers multiple capture cards startup collection transient signals comprises:
Taking the synchronous clock of described PXIe bus as reference signal, the sampling clock that described each capture card is set is identical proportion;
Send collection signal to described each synchronous collecting card according to described proportion, gather described transient signal to trigger to start.
10. method according to claim 9, is characterized in that, after the described transient signal sending at described multiple capture card synchronous acquisition device under tests, described method also comprises:
The transient signal described each synchronous collecting card being collected by magnetic disc array interface card spreads out of to disk array.
11. methods according to claim 10, is characterized in that, after controller triggers multiple capture cards startup collection transient signals, described method also comprises:
Show by display the transient signal that the described device under test that collects sends.
12. methods according to claim 8, is characterized in that, described capture card adopts indirect acquisition mode and continuity way.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310565867.7A CN104166046A (en) | 2013-05-16 | 2013-11-13 | Transient signal processing method and transient signal processing system |
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| CN201320268818.2 | 2013-05-16 | ||
| CN201320268818 | 2013-05-16 | ||
| CN201310565867.7A CN104166046A (en) | 2013-05-16 | 2013-11-13 | Transient signal processing method and transient signal processing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241483A (en) * | 2015-11-04 | 2016-01-13 | 长春理工大学 | Transient field signal display method and device |
| CN108107251A (en) * | 2017-12-05 | 2018-06-01 | 南京海道普数据技术有限公司 | Multichannel instantaneous state recorder and acquisition method |
| CN110488718A (en) * | 2019-09-03 | 2019-11-22 | 哈尔滨工业大学 | The super full Channels Synchronous Data Acquisition System of multichannel |
-
2013
- 2013-11-13 CN CN201310565867.7A patent/CN104166046A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241483A (en) * | 2015-11-04 | 2016-01-13 | 长春理工大学 | Transient field signal display method and device |
| CN108107251A (en) * | 2017-12-05 | 2018-06-01 | 南京海道普数据技术有限公司 | Multichannel instantaneous state recorder and acquisition method |
| CN110488718A (en) * | 2019-09-03 | 2019-11-22 | 哈尔滨工业大学 | The super full Channels Synchronous Data Acquisition System of multichannel |
| CN110488718B (en) * | 2019-09-03 | 2020-07-31 | 哈尔滨工业大学 | Ultra-multi-channel full-synchronization data acquisition system |
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