CN113050561B - Dynamic signal analysis control system - Google Patents
Dynamic signal analysis control system Download PDFInfo
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- CN113050561B CN113050561B CN202110264299.1A CN202110264299A CN113050561B CN 113050561 B CN113050561 B CN 113050561B CN 202110264299 A CN202110264299 A CN 202110264299A CN 113050561 B CN113050561 B CN 113050561B
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- 238000012360 testing method Methods 0.000 claims abstract description 65
- 239000011159 matrix material Substances 0.000 claims abstract description 26
- 238000001228 spectrum Methods 0.000 claims abstract description 7
- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 238000000034 method Methods 0.000 description 5
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a dynamic signal analysis control system, which comprises a dynamic signal analyzer, wherein the dynamic signal analyzer is connected with an upper computer through a GPIB board card; the dynamic signal analyzer is integrated by two four-channel spectrum analyzers and a matrix switching box. The dynamic signal analysis control system solves the problems that a large amount of manual repeated work is needed in the traditional sweep frequency test, and the test items cannot be automatically and continuously executed.
Description
Technical Field
The invention belongs to the technical field of flight control design, and particularly relates to a dynamic signal analysis control system.
Background
As an important testing instrument, the sweep generator has wide application in various fields of aviation, aerospace, military industry, industrial control and the like. For example, the ground test on board the flight control system is a critical test that must be performed before the aircraft will fly first, and the sweep generator is the necessary equipment for this test. In the ground test of the flight control system, a plurality of tests such as an open-loop stable reserve test of the fly-by-wire control system, a closed-loop frequency performance test of the fly-by-wire control system, a dynamic performance test of a mechanical control system, a stable reserve test of an automatic flight control system, a structural modal coupling test and the like are required to be completed by using a sweep generator.
However, in the existing traditional sweep test, the product to be tested needs to be manually replaced; for each type of product to be tested, various test parameters need to be manually input and can not be automatically and continuously executed; the test results need to be recorded manually, which is inconvenient for review and secondary calculation. The operation needs a large amount of manual repeated work, and the test items cannot be automatically and continuously executed, so that the junction and the automatic selection of a plurality of sets of products to be tested cannot be realized, and the automatic input, the automatic test and the automatic data recording of the characteristic parameters of the products to be tested cannot be realized.
Disclosure of Invention
The invention aims to provide a dynamic signal analysis control system, which solves the problems that a large amount of manual repeated work is required in the traditional sweep frequency test, and the test item cannot be automatically and continuously executed.
The technical scheme adopted by the invention is that the dynamic signal analysis control system comprises a dynamic signal analyzer, wherein the dynamic signal analyzer is connected with an upper computer through a GPIB board card; the dynamic signal analyzer is integrated by two four-channel spectrum analyzers and a matrix switching box.
The invention is also characterized in that:
the matrix switching box comprises a shell, wherein a PCB (printed circuit board) is arranged in the shell, a main control chip and a switch are integrated on the PCB, and a power line, a serial port line, a signal input line, a signal output line and an LED lamp group are arranged on the shell and are respectively connected with the PCB;
the serial port line is connected with the upper computer, the signal output line is connected with the dynamic signal analyzer, and the signal input line is connected with the signal line of the piece to be tested.
The change-over switch of the matrix change-over box is 8 groups of 4-selection 1 change-over switches, and the change-over switch comprises reed switch relays, and each group is formed by connecting 4 reed switch relays in parallel.
The model of the main control chip is 10M08SE144I7N.
The LED lamp sets are connected with the signal channels of the dynamic signal analyzer in a one-to-one correspondence manner.
The GPIB board is a PCI-GPIB type functional board of NI.
The dynamic signal analyzer comprises a parameter configuration module, a device self-checking module, a system testing module and a data playback module.
The beneficial effects of the invention are as follows:
according to the dynamic signal analysis control system, the products to be tested are connected through the self-grinding matrix switching box, and meanwhile, the functions of switching, parameter input, test execution, test result recording analysis and the like of the products to be tested are realized through the test program; according to the dynamic signal analysis control system, one host can control a plurality of dynamic signal analyzers through the GPIB board card, single-machine expansion can be realized, and data transmission efficiency can be improved through data interaction of the GPIB bus; according to the dynamic signal analysis control system, the number of the existing channels is multiplied through the matrix switching box, so that an automatic test flow of the system can be automatically executed, and a test is simpler and more efficient.
Drawings
FIG. 1 is a schematic diagram of a dynamic signal analysis control system of the present invention;
FIG. 2 is a schematic diagram of the operation of a dynamic signal analyzer in a dynamic signal analysis control system according to the present invention;
fig. 3 is a schematic diagram of a matrix switching box in a dynamic signal analysis control system according to the present invention.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
The first dynamic signal analysis control system of the invention, as shown in figure 1, comprises a dynamic signal analyzer, wherein the dynamic signal analyzer is connected with an upper computer through a GPIB board card; the dynamic signal analyzer is integrated by two four-channel spectrum analyzers and a matrix switching box.
Two channel/four channel frequency response range for dynamic signal analyzer: 102.4kHz 1channel, 51.2kHz 2channel, 25.6kHz 4channel; dynamic range: 90dB; precision: + -0.15 dB; channel error: a range of + -0.04 dB and + -0.5; real-time bandwidth: 25.6kHz per channel; the capture time is greater than 6 samples; the signal source type may be generated: random signals, pulse signals, periodic signals, sinusoidal signals, noise signals, swept signals, etc.
Preferably, the matrix switching box comprises a shell, wherein a PCB (printed circuit board) is arranged in the shell, a main control chip and a switch are integrated on the PCB, and a power line, a serial port line, a signal input line, a signal output line and an LED lamp group are arranged on the shell and are respectively connected with the PCB;
the serial port line is connected with the upper computer, the signal output line is connected with the dynamic signal analyzer, and the signal input line is connected with the signal line of the piece to be tested.
Preferably, the model of the main control chip is 10M08SE144I7N.
Preferably, the change-over switches of the matrix change-over box are 8 groups of 4-selection 1 change-over switches, each group is composed of 4 reed switch relays in parallel connection. As shown in fig. 3.
Preferably, the LED lamp sets are connected with the signal channels of the dynamic signal analyzer in a one-to-one correspondence.
Preferably, the GPIB board is a PCI-GPIB type functional board of NI. Including a 3.3VDC voltage, 120Ma, and is internally powered; compliance with the IEEE488 standard; the maximum cable length is 4m; operating temperature: not higher than 50 ℃;
preferably, the dynamic signal analyzer employs LABVIEW 2015 graphical programming software, including parameter configuration, device self-test, system test and data playback modules:
parameter configuration module: all parameter configuration required by system test is completed, so that a user can test more conveniently and flexibly; parameters such as signal type, signal amplitude, start-stop frequency, scanning mode and the like of the source output of the dynamic signal analyzer can be set through a source output setting function;
and the equipment self-checking module: the dynamic signal analyzer and the GPIB board card can be subjected to self-checking, so that a user can know the running state of the test system; the self-checking item is optional, if the system has only one dynamic signal analyzer, the self-checking one dynamic signal analyzer can be arranged, and if the system is provided with two dynamic signal analyzers, the self-checking of the two dynamic signal analyzers can be supported for convenient later expansion; the dynamic signal analyzer and the GPIB board card in the test system can be automatically self-inspected, the self-inspected result is displayed in a parallel table, and if the self-inspected result fails, error information is displayed in an error information frame;
and a system test module: the final test of the tested equipment is completed through a system test, and the system test function comprises the steps of displaying test data, setting test parameters and recording test results; automatically setting the drawing proportion of X and Y axes and realizing the simultaneous display of a plurality of curves;
and a data playback module: for the recorded data, the playback and analysis of the process data can be realized by opening the corresponding file in the later analysis; the recorded signals can be played back, the corresponding file path is selected to start playing back, the playback process is displayed through a waveform chart, and the dynamic process of the signals can be observed; the data playback can realize simultaneous display of a plurality of curves, and a channel to be displayed can be selected through a channel selection button; the data playback interface is provided with two cursors, and the difference between the two cursors is displayed in real time, so that a user can calculate and analyze data conveniently.
The invention relates to a dynamic signal analysis control system, which has the following main components:
dynamic signal analyzer: the system mainly comprises two FFT-based spectrum/network analyzers with four channels and two groups of GPIB interfaces, can realize the signal interaction and control of 8 channels, has a frequency measurement range from near DC to slightly higher than 100KHz, and can provide the measurement of spectrum, network, time domain and amplitude domain; the working principle is shown in figure 2;
matrix switching box: the method is mainly used for realizing port expansion and switching control, takes an MAX10 FPGA chip of Intel corporation as a main control chip, takes a reed switch relay as a change-over switch, takes an RS422/RS485 bus as a control interface, adopts an ADM2582E isolation type 422/485 level converter for level conversion, realizes 8-way 4-way 1-way change-over switch control through system software program control, and specifically comprises the following steps: the system software sends an instruction to the matrix switching box through the serial port according to a pre-established communication protocol so as to realize the control of the 8-way 4-way 1-selecting switching switch in the matrix switching box; as shown in fig. 3.
The invention relates to a dynamic signal analysis control system, which has the working principle that:
two four-channel spectrum analyzers and a matrix switching box are integrated into a set of dynamic signal analyzers, GPIB (general purpose interface bus) boards are inserted into the slots of the upper computer, and the dynamic signal analyzers are connected to the GPIB boards through GPIB buses, so that communication between the upper computer and the dynamic signal analyzers is realized. The upper computer is communicated with the matrix switching box through serial lines. The excitation output of the dynamic signal analyzer is connected to the matrix switching box to serve as the output of the matrix switching box, the signal line of the piece to be tested is connected to the matrix switching box to serve as the input of the matrix switching box, and the signal output line is connected with the dynamic signal analyzer and used for testing a dynamic signal analysis system.
The system can realize the control of 32 test channels, at most complete continuous tests of a plurality of different products to be tested, and the dynamic signal analysis software can complete the setting of the amplitude and the frequency of the channel signals of the sweep generator, display response curves and store test data.
In addition, the dynamic signal analysis control system is provided with a standard Ethernet interface, can be connected with a remote test management computer through the Ethernet, receives test instructions of the test management computer, completes a test and reports test data, and realizes remote test control and automatic test of products to be tested.
The dynamic signal analyzer is connected with the matrix switching box, each path of spectrum analysis channel can be expanded, and the switching of the tested piece is realized through the disconnection of the matrix switching box. The system integrates various test classes, including test flow modes under the classes, disconnection of the matrix switching box, test parameter movements and the like, so as to be continuously and automatically executed.
When the test is needed, selecting a product to be tested, automatically selecting matrix box connection, test flow and corresponding parameters according to the product to be tested by the system so as to complete parameter setting, and sending an instruction to a dynamic signal analyzer; at this time, the system detects whether the test is completed or not, and stores the test result; after the test is completed, the test is transferred to the next test. The procedures of manually pulling and inserting, switching test pieces, inputting test parameters and the like are omitted, and automatic test execution is realized.
The dynamic signal analysis control system provided by the invention has the advantages that a plurality of tests such as an open-loop stable reserve test of the fly-by-wire control system, a closed-loop frequency performance test of the fly-by-wire control system, a dynamic performance test of a mechanical control system, a stable reserve test of an automatic fly-by-wire control system, a structural modal coupling test and the like are completed.
Claims (5)
1. The dynamic signal analysis control system is characterized by comprising a dynamic signal analyzer, wherein the dynamic signal analyzer is connected with an upper computer through a GPIB board card; the dynamic signal analyzer is integrated by two four-channel spectrum analyzers and a matrix switching box;
the matrix switching box comprises a shell, a PCB (printed circuit board) is arranged in the shell, a main control chip and a switch are integrated on the PCB, and a power line, a serial port line, a signal input line, a signal output line and an LED lamp group are arranged on the shell and are respectively connected with the PCB;
the serial port line is connected with the upper computer, the signal output line is connected with the dynamic signal analyzer, and the signal input line is connected with the signal line of the piece to be tested;
the LED lamp sets are connected with the signal channels of the dynamic signal analyzer in a one-to-one correspondence mode.
2. The dynamic signal analysis control system according to claim 1, wherein the switches of the matrix switching box are 8 groups of 4-to-1 switches, the switches comprise reed switch relays, and each group is composed of 4 reed switch relays in parallel.
3. The system of claim 1, wherein the master chip is 10M08SE144I7N.
4. The system of claim 1 wherein the GPIB card is a PCI-GPIB type functional card of NI.
5. The dynamic signal analysis control system of claim 1, wherein the dynamic signal analyzer comprises a parameter configuration module, a device self-test module, a system test module, and a data playback module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110264299.1A CN113050561B (en) | 2021-03-11 | 2021-03-11 | Dynamic signal analysis control system |
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| CN202110264299.1A CN113050561B (en) | 2021-03-11 | 2021-03-11 | Dynamic signal analysis control system |
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| CN113050561A CN113050561A (en) | 2021-06-29 |
| CN113050561B true CN113050561B (en) | 2024-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2492883Y (en) * | 2000-09-06 | 2002-05-22 | 中国科学院光电技术研究所 | Dynamic signal analyzer |
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| CN106546839A (en) * | 2016-09-28 | 2017-03-29 | 西安航天计量测试研究所 | Attitude control engine ground checkout equipment debugs test system and method automatically |
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2021
- 2021-03-11 CN CN202110264299.1A patent/CN113050561B/en active Active
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| CN2492883Y (en) * | 2000-09-06 | 2002-05-22 | 中国科学院光电技术研究所 | Dynamic signal analyzer |
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| CN106527401A (en) * | 2016-11-30 | 2017-03-22 | 中国航空工业集团公司沈阳飞机设计研究所 | Flight control test automated testing system |
| CN106773791A (en) * | 2017-01-16 | 2017-05-31 | 万微微 | A kind of flight control system experimental rig |
| CN109634261A (en) * | 2018-12-24 | 2019-04-16 | 中国航空工业集团公司西安飞机设计研究所 | Automatic identification pilot system state and the system and method tested |
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