CN101865182A - Airplane hydraulic test distributed test system and method thereof - Google Patents
Airplane hydraulic test distributed test system and method thereof Download PDFInfo
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Abstract
The invention discloses an airplane hydraulic test distributed test system and a method thereof, belonging to the technical field of measurement and control. The test system comprises a data acquisition instrument module (1), a test controller (2), a signal conditioner (3), a network switch (4), an LXI instrument control data bus (5), a field data module (6), an interface conversion module (7), a field data bus (8), a series communication data bus (9) and test software and is characterized in that a plurality of data buses are simultaneously used, and various data acquisition modules are adopted in the test system to finish the data acquisition in the measurement of various signals and the long-line transmission of the measured signals. The system of the invention has compact and simple structure, small space size, reliable operation, high test accuracy and favorable expansibility and tailorability.
Description
Technical field
The invention belongs to the observation and control technology field, relate to a kind of aircraft hydraulic pressure test distributed test system, particularly finish the distributed test system and the test method thereof of multiple physical quantities such as plane hydraulic system pressure, flow, temperature.
Background technique
In the plane hydraulic system test, requirement is finished the hydraulic fluid special parameter: the measurement of signals such as pressure, flow, temperature and stress/strain, to hydraulic control system and actuating system mechanical motion parameter: the measurement of signals such as linear displacement, angular displacement, power, moment of torsion, rotating speed, and to the measurement of signals such as the voltage in the analyzing logic control, electric current.In the actual tests, need adopt at a high speed data capture to the measurement of fast-changing signals such as pressure pulsation, instantaneous peak value pressure, stress/strain, for temperature, voltage, electric current etc. slowly variable signal then can adopt at a slow speed data capture.
In above-mentioned experimental measurement, because measurement parameter need be drawn from the hydraulic system parts and the annex that are distributed in the aircraft diverse location, be that exploitation is based on GPIB (General PurposeInterface Bus) in traditional measurement, the test system of VXI (VME eXtensions for Instrumentation) or PXI (PCIeXtensions for Instrumentation) instrument control bus, the measurement signal that is dispersed in diverse location is incorporated into test system, disturbs during the energy and time that often needs to cost a lot of money in a large amount of test cables and the transmission of long line goes to solve the signal transmission and tests, problems such as noise; Secondly, to all test signals, often can only use a kind of sampling rate to carry out the data capture operation, be difficult to take into account and carry out the operation that high-speed data acquisition and slow data are gathered simultaneously based on the test system of GPIB or VXI or PXI instrument control bus; The 3rd, in the face of multiple signal measurement in the test, the test record instrument that needs exploitation or configuration plane to measure to unlike signal, as measurement for the stress/strain signal, just need special stress/strain measuring system, and in the measurement for signals such as pressure, displacements, can use conventional data acquistion system.
How in Design of Test System, to adopt different sampling rates to realize the acquisition operations of numerous physical quantitys? how about solve the transmission of a large amount of signals? and the measurement that how to take into account the variety classes signal? in the face of signals disperse in the test, quantity is many, the situation that kind is numerous and diverse, development and exploitation just become optimal selection based on the distributed test system of LXI instrument control data bus and field data bus, can solve the data capture in numerous physical quantity signals measurements satisfactorily, signal transmits, and has realized the collection under different sampling rates, record, analysing and processing.
LXI (LAN eXtensions for Instrumentation) is that a new generation after frame stack gpib interface intelligence instrument, VXI or PXI virtual instrument is based on the test system module framework platform standard of Ethernet LAN.Entered since the new century, in order to satisfy the demand for development of following test system, realize that the interchangeability of hardware and the interoperability manipulation of software become the key that guarantees whole system vitality and life cycle, meanwhile, military ATS test system also will satisfy the requirement of its reliability, mobility and flexibility, and the cost that reduces exploitation, safeguards as much as possible, save human resources, improve the scene of hardware and replace efficient and maintenance center replacement efficient, improve armament systems and tackle area and even the global strategic requirement of supporting fast.The test subscriber and the apparatus manufacture that with the U.S. are representative have proposed new test instrument theory and technology, to solve the problem that traditional C OTS (CommercialOff-the-Shelf) instrument brings, be referred to as NxTest, it just is based on the modular test system of LXI.
The LXI instrument is to be that the basis adds the new instrument that the lan network interface forms with the desk-top instrument, is a kind of novel modularized instrument based on high-speed lan.Be similar to VXI module and PXI module, size is little, and self comprises instrumentla fucction, do not need cabinet, by utilizing PC standard I/O slot, high-speed lan and USB, but set up test system, dispose the test that different software can be realized multiple difference in functionality based on the module composition moduleization of LAN, thereby can form easily based on the various test systems of the instrument module of LAN, reduce expensive frame and MXI interface.LXI module instrument external trigger can be measured external event at random in addition, and IEEE-1588 regularly and provide synchronously between module and the LAN accurately synchronously.
The LXI instrument adopts compactness to encapsulate flexibly, and high speed I/O and measurement function have reliably satisfied the demand of industry such as Aeronautics and Astronautics, boats and ships, automobile and consumption market experimental test effectively.Consider that vxi bus provides desirable standard for the high-speed application of all high density, LAN does not have bandwidth, software or computer bottom plate structural limitations, LXI has merged the advantage of VXI and Ethernet simultaneously, for the user provides a good high-performance instrument platform, satisfy the unappeasable application demand of VXI, the Ethernet throughput that improves is day by day utilized in addition, LXI provides desirable solution for ATS Automatic Test System of future generation, also lays a good foundation for the realization of long lifetime instrument in national defense industry such as Aeronautics and Astronautics, boats and ships.
Based on LXI instrument control data bus and field data bussing technique is the hardware foundation of realizing distributed testing, realize aircraft hydraulic pressure test distributed testing, also needs to develop corresponding testing software.In testing software designs and develops, in order to improve software repeated usage and development efficiency to greatest extent, adopt the software development methodology of object oriented framework, object oriented framework (Framework) is a kind of important software multiplex mode in the modern software engineering, can realize the reusable design of whole or part system, it is multiplexing to comprise that code reuse and software are produced.By cutting out and expanding and to develop the application software that is adapted to various fields apace, alleviated the workload of system design, programming and maintenance based on the design of framework software effectively.
Summary of the invention
The objective of the invention is: design a kind of aircraft hydraulic pressure test distributed test system based on LXI instrument control data bus and field data bus, in this test system, can adopt different sampling rates to realize the acquisition operations of numerous physical quantitys, solve the long line transmission of a large amount of signals, and satisfy the variety classes physical quantity: the measurement of signals such as stress/strain, pressure, temperature.
Technological scheme of the present invention is: a kind of aircraft hydraulic pressure test distributed test system, comprise the data acquisition instrument module, test controller, signal conditioner, the network switch, LXI instrument control data bus, the field data module, interface modular converter, field data bus and serial communication data/address bus, and testing software, it is characterized in that, use several data bus and several data acquisition module to realize the long line transmission of distributed data capture and survey data in this test system simultaneously, and, finish the data capture in the multiple signal measurement at the different different data acquisition rates of data acquisition module execution.
Use LXI instrument control data bus to realize the high-speed data acquisition operation, finish stress/strain in the test, pressure etc. are the measuring recording of variable signal fast, in the high speed acquisition operation, by test controller by the communication between LXI instrument control data bus and the network switch, control data acquisition instrument module is carried out the data acquisition operations, the signal of data acquisition instrument module institute acquisition and recording comes from the output of signal conditioner, or the strain signal of tested hydraulic pipe, signal conditioner be input as pressure in the tested hydraulic system, the output of type sensors such as flow.
Use the field data bus to realize the low speed data acquisition operations, finish measuring recording to slow variable signal such as temperature, switching value in the test, in the low speed data acquisition operations, by test controller by the communication between serial communication data/address bus and the interface convertor, control field data module is carried out the data acquisition operations, come from the output of type sensor such as temperature in the tested hydraulic system or switching value signal by the signal of field data module institute acquisition and recording.
Testing software by man-machine interface operation control, instrument configuration management, System self-test and calibration, the configuration management of measurement engineering, data capture storage, survey data temperature correction, data management and the graph curve analysis that derivation, data readback are browsed, cursor is controlled, report that the formation component module forms, it is as follows that each module is finished function:
Man-machine interface operation control unit module provides the man-machine interaction operation interface, receives the big operation input of user, operates selection according to the user, finishes the setting of parameter, or other assembly module of scheduled for executing, carries out function corresponding;
Instrument configuration Management Unit module has automatic identification instrument module, searches the instrument module in the test system automatically, finishes the initialization operation to the system instrument module;
System self-test and calibration assembly module are finished the functions such as self check, self calibration, the inspection of line, zero testing and compensating resistance of data acquisition instrument module;
Measure engineering configuration management assembly module, setting, data capture engineering definition function with measurement parameter, realize in being provided with of measurement parameter measuring that channel selecting, sensor are selected, engineering unit conversion, gain selection, the selection of bridge circuit parameter, alarm threshold setting etc., comprise Test Information, instrument information, test description, task start and end mode, sample rate selection etc. in the data capture engineering definition, preserve above-mentioned parameter with data capture project file form;
Data capture memory module module according to instrument configuration management with measure set parameter in the engineering configuration management, is finished multi-channel data and is gathered in real time and storage, simultaneously, also finishes the real-time thresholding of multichannel and judges, important parameter is implemented emergency processing;
Survey data temperature compensation component module is used for the data that the strain measurement passage is gathered are carried out temperature correction;
Data management and derivation assembly module, with the database form survey data is managed, deposit trystate information and image data in the measurement in the database, data can be retrieved by multiple condition, data can derive from database, and multiple forms such as .xls .txt .csv., pdf are arranged;
Data readback navigation mechanism module provides test mission data readback function afterwards, can the select time section carry out local playback;
The graph curve analytic unit module of cursor control, provide with the graph curve form and shown survey data, can define a plurality of display windows in the graphic display, y coordinate and abscissa can be set, locally amplify or function such as dwindle each display window, and carry out multiwindow and switch in real time, also provide the analytic function of cursor control,, and carry out analysis of pressure pulsation, stress analysis survey data operation such as carry out that maximum value, minimum value are searched;
Report formation component module provides the function that generates test report, includes correlation test information, survey data, graph curve and to the markup information of graph curve etc.
Aircraft hydraulic pressure test distributed testing method of the present invention may further comprise the steps:
1) in the aircraft hydraulic pressure test test, executor-machine interface operation control unit module, people-machine operation interface environments is provided, operate the selection input according to the user, carry out following arbitrary or a plurality of assembly module: instrument configuration Management Unit module, System self-test and calibration assembly module, measurement engineering configuration management assembly module, finish the setting of parameter;
2) according to present parameter state, carry out data capture memory module module, finish the data capture and the data storage of measurement signal, in the data capture, test controller is worked according to task control LXI instrument module, carry out the data capture storage operation, in carrying out data acquisition, can judge image data, make and reporting to the police or emergency processing, also can be according to user's control operation, carry out and suspend data capture or stop operation such as data capture;
3) select according to operation, carry out survey data temperature compensation component module image data is carried out the temperature correction processing;
4) select according to operation, carry out following arbitrary or a plurality of assembly module: data management and the graph curve analytic unit module that derives assembly module, data readback navigation mechanism module, cursor control, finish each assembly module function corresponding;
5) on the basis of operations such as data capture and data processing, according to practical application request, can carry out data management selectively and derive assembly module, or data readback navigation mechanism module, or the graph curve analytic unit module of cursor control, output then can reports on the implementation formation component module be finished for test report.
Above-mentioned application software component module is finished at Microsoft Visual Studio.NET 2003 environment exploitations, also can select other Software Development Platform, as LabWindows/CVI, LABVIEW etc., Microsoft SQL Server2000 tool environment is adopted in data management, or other database management system.
The present invention has the following advantages:
(1) compact structure is simple, bulk is little, reliable operation, testing precision height, adopts the standard PC case and the instrument module based on the instrument control bus of high reliability, through optimal design, modularization, standardization and seriation can adapt at harsh electromagnetism and mechanical environment and use.
(2) good extensibility by increasing data acquisition instrument module or field data module, increases corresponding measurement signal wiring units and cable thereof, just can finish the expansion of measurement passage easily.
(3) good tailorability and reusability, the component software technology based on framework is adopted in software development, and the optional component module realizes the unitization combination of system test software as required.
(4) reduce cost, owing to realized General design, same system can carry out multiple channel test, is equivalent to the function of original a plurality of special devices on function, greatly reduces equipment cost; Concerning the user, because aircraft hydraulic pressure test distributed testing has improved experimental test efficient greatly, shortened the test period, significantly reduced expense.
Description of drawings
Fig. 1 forms structural drawing for the present invention;
Fig. 2 is the composition structural drawing of one embodiment of the invention;
Fig. 3 is the testing software flow chart of the invention process method.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
Aircraft hydraulic pressure test distributed test system is formed structure as shown in Figure 1, comprise data acquisition instrument module [1], test controller [2], signal conditioner [3], the network switch [4], LXI instrument control data bus [5], field data module [6], interface modular converter [7], field data bus [8] and serial communication data/address bus [9], and testing software, it is characterized in that, use several data bus and several data acquisition module to realize the long line transmission of distributed data capture and survey data in this test system simultaneously, and carry out different data acquisition rates at different data acquisition modules and finish data capture in the multiple signal measurement.
Use LXI instrument control data bus [5] to realize the high-speed data acquisition operation, finish stress/strain in the test, pressure etc. are the measuring recording of variable signal fast, in the high speed acquisition operation, by test controller [2] by the communication between LXI instrument control data bus [5] and the network switch [4], control data acquisition instrument module [1] is carried out the data acquisition operations, the signal of data acquisition instrument module [1] institute acquisition and recording comes from the output of signal conditioner [3], or the strain signal of tested hydraulic pipe, signal conditioner [3] be input as pressure in the tested hydraulic system, the output of type sensors such as flow.
Use field data bus [8] to realize the low speed data acquisition operations, finish measuring recording to slow variable signal such as temperature, switching value in the test, in the low speed data acquisition operations, by test controller [2] by the communication between serial communication data/address bus [9] and the interface convertor [7], control field data module [6] is carried out the data acquisition operations, come from the output of type sensor such as temperature in the tested hydraulic system or switching value signal by the signal of field data module [6] institute acquisition and recording.
Fig. 2 is the composition structural drawing of one embodiment of the invention.
Among the embodiment, data acquisition instrument module [1] adopts the EX1629 data acquisition instrument module of VTI company in a kind of aircraft hydraulic pressure test distributed test system, test controller [2] adopts and grinds the magnificent process control machine IPC-619 of company, signal conditioner [3] is a S6000A multifunctional signal conditioner, can with measuring fluid pressure, flow transducer, and with the linear displacement of measurement mechanical amount, angular displacement, pressure, type sensors such as moment of torsion connect, for the sensor provides the power supply excitation, and sensor output signal nursed one's health, conditioning back signal inserts EX1629 data acquisition instrument module, the network switch adopts the H1008A Ethernet switch, and provides the synchronous triggering function of LXI instrument control data bus;
Field data module [6] adopts grinds the magnificent Adam of company modules A DAM-4018+, interface modular converter [7] adopts and grinds the magnificent Adam of company modules A DAM-4520, finish RS-232/RS-485 interface communication function conversion, field data bus [8] is a RS-485 field data bus, and serial communication data/address bus [9] is a RS-232 serial communication data/address bus.
Above-mentioned feature of the present invention can be done following variation, but they all do not depart from essence of the present invention:
Adopt outside the RS-485 bus as the field data bus, also can select the field data bus of other type, as CAN, Ethernet etc.;
The field data module adopts and grinds outside the magnificent Adam of the company modules A DAM-4018+, can also select to grind other Adam's module of magnificent company, or the field data module of other company;
The data acquisition instrument module adopts outside the EX1629 data acquisition instrument module of VTI company, can also select other categorical data acquisition instrument module, or the data acquisition instrument module of other company;
Test controller adopts and grinds outside the magnificent process control machine IPC-619 of company, can also select to grind other type process control machine of magnificent company, or the process control machine of other company, even selects general business computer;
Signal conditioner adopts outside the S6000A multifunctional signal conditioner, the signal conditioner of all right other type.
Fig. 3 is the testing software flow chart of the invention process method.
The software execution in step is as follows among the embodiment:
Step 1: testing software is from [301];
Step 2: executor-machine interface operation control unit module [302];
Step 3: in man-machine interaction operation, operate selections [303], call according to the operation selection result and carry out instrument configuration Management Unit module [304] or call the executive system self check and calibration assembly module [305] or call and carry out measurement engineering configuration management assembly module [306];
Step 4: carry out data capture memory module module [307];
Step 5: survey data temperature compensation component module [308];
Step 5: select whether carry out data management and derivation [309], carry out data management and derive assembly module [310] if then call, otherwise, direct execution in step 6;
Step 6: select whether carry out data replay browsing [311], carry out data replay browsing assembly modules [312] if then call, otherwise, direct execution in step 7;
Step 7: select whether to carry out the graph curve analysis [313] of cursor control, if then call the graph curve analytic unit module [314] of carrying out cursor control, otherwise, direct execution in step 8;
Step 8: select whether to carry out test operation [315] once more, if execution in step 4 then, otherwise execution in step 9;
Step 9: call reports on the implementation formation component module [316];
Step 10: select whether to carry out another test [317], if execution in step 2 then, otherwise execution in step 11;
Step 11: finish testing software [318].
Among the embodiment, in the aircraft hydraulic pressure test distributed test system testing software execution sequence and flow process as shown in the figure, the assembly module function of the execution of calling is as follows:
Man-machine interface operation control unit module, the man-machine interaction is provided operation interface, receive the big operation input of user, operate selection according to the user, finish the setting of parameter, or scheduled for executing other as instrument configuration management, System self-test and calibration, the configuration management of measurement engineering, data capture storage, survey data temperature correction, data management and derivation, data readback are browsed, the graph curve analysis of cursor control, report formation component module, carry out function corresponding.
Instrument configuration Management Unit module automatically or response user's operation, is searched all appts module in the test system, and on operation interface the status information of display instrument module, comprise instrument title and IP address etc.
Self check and calibration assembly module, its function comprises functions such as instrument self checking, self calibration, the inspection of line, zero testing and compensating resistance.Wherein self check is used to carry out the self check of instrument, and instrument self checking just often could guarantee the data acquistion system proper functioning; Self calibration is used for the self calibration of instrument EX1629 inside, and self-calibration process is preferably in and carries out after data acquistion system starts a period of time; The inspection of line is used for checking the correctness of 1/4 bridge strained channel wiring of all EX1629 instruments of data acquistion system; Strain value when zero testing is used to test and preserve all 1/4 bridge strained channel dead-center positions is eliminated zero error; The test compensating resistance is used to test and preserve resistance on the line of all 1/4 bridge strained channels, eliminates resistance error on the slotted line.
After carrying out self check and calibration assembly module, the channel information that will detect and calibrate is loaded into " inspection of line " automatically, " zero testing " reaches in " compensating resistance test " information table.This function has guaranteed the integrity of system and measurement circuitry, has also improved the measuring accuracy of system simultaneously.
Measure the engineering configuration management function and can define a complete data capture engineering, and configuration information is saved as project file, comprise engineering information configuration, channel arrangement and acquisition configuration.The engineering information configuration is used for the engineering information that definition of data is gathered engineering, comprises test name, test site, time, task description etc.; Channel arrangement is used for each test parameter of acquisition channel that definition of data is gathered engineering, according to different instruments and performance, carry out the configuration of scanning collection (as ADAM-4018+) passages such as strain, pressure parallel acquisition (as EX1629) channel arrangement and temperature, at the channel arrangement interface, the client can finish operations such as the interpolation, deletion of acquisition channel, after finishing channel arrangement, the channel information that configures will be presented in the allocation list; The main definition of data of acquisition configuration is gathered the engineering Starting mode, is stopped mode, sample rate setting and display mode.
Data capture memory module module, be after finishing configuration of data capture engineering and correction function, execution data capture memory module module is carried out data capture, and collecting function comprises that image data shows, warning message shows, acquisition state shows, graph curve is changed demonstration etc.
It is in data acquisition that image data shows, test controller constantly reads image data from the data acquisition instrument module, when being saved in image data in the project file automatically, show every corresponding image data of measuring passage of curve with the graph curve form; It is that current Information Monitoring is shown in the Information that Information Monitoring shows, the information of demonstration comprises sample rate, beginning acquisition time, passage, sensor type and engineering unit; Warning message shows it is that warning message with all passages in the data capture engineering is shown in the warning message table, and warning message comprises: alarm times and time of fire alarming for the first time.Warning message upgrades once each second; The acquisition state demonstration comprises current scanning times, test mode; The graph curve change shows that the change of carrying out curve shows, the curve in interpolation or the deletion figure is revised the curve color, adjusts the maximum value and the minimum value of figure Y-axis.
Survey data temperature compensation component module is used to carry out the match of the temperature compensation curve of 1/4 bridge strain testing passage, when temperature compensation curve is meant the foil gauge dead-center position that 1/4 bridge connected, and the variation relation curve between micro strain and the temperature.The survey data temperature compensation component will go out straight line according to the humid test data fitting, when carrying out the temperature correction match, the micro strain of gathering according to several groups of temperature values and the corresponding instrument module (EX1629) of user record, adopt method of least squares, change curve match between micro strain and the temperature is come out, draw corresponding K and B value and preserve.This function is intended to eliminate the influence of temperature counter stress.
Data management is reduced with inquiry, deletion, playback derivation, data backup and data that the derivation assembly module is finished the data capture engineering record, and the derivation of image data, query function is inquired about the engineering information in the database according to the querying condition of user's input.
Data readback navigation mechanism module finishes that data query, engineering information load and check, data readback, in the data readback data in the loaded data file are shown with the graph curve form, and can the handover operation interface, the interface is switched to configuration interface, reload data.
The graph curve analytic unit module of cursor control is carried out analytical calculation by controlling a plurality of cursors in the demonstration of graph curve.
The Display Realization of graph curve following function:
(1) regulates enlarged view Y-axis coordinate function, in stress analysis or pulsation analysis, can do to revise arbitrarily Y-axis coordinate display area;
(2) enlarging function can amplify the part between Marker1 and the Marker2 in stress analysis or pulsation analysis, so that certain segment data of curve is carried out labor.
(3) fallback function can return to the last curve that shows, returns to the curve before amplifying for three times at most.
(4) cancellation and interpolation curve function, when having many curves among the figure, by the check box in trade-off curve information the place ahead, the curve of show or hide bar.
(5) interpolation and cancellation marker when the user need carry out analytical calculation to the curve among the current figure, carry out analytical calculation to curve after needing to add marker, after finishing the analytical calculation function, and can be with other operation of the cancellation carrying out then of the marker among the figure.
The analytical calculation function be according to measure passage and corresponding diagram deltoid what, be divided into single channel analytical calculation and multichannel analysis and calculate, multichannel analysis calculates can carry out analytical calculation to many curves, result calculated is inserted the multichannel analysis list box; The single channel analytical calculation can only then be carried out analytical calculation to a curve, and result of calculation is inserted single channel and analyzed list box.
In addition, analysis of pressure pulsation function and stress analysis function are in graph curve shows, any selection pressure curve and strain curve, to selected curve, three Marker are provided among the figure, wherein the 1st and 2 Marker is used to identify selected zone, to amplifying or reduce in selected zone, the 3rd Marker is used to identify selected eigenvalue, the abscissa of all Marker and ordinate value all can automatically be presented on the interface, calculate pressure pulsation parameter or stress parameters by the coordinate figure to Marker.
Report formation component module can save as the word form with the calibration curve information below enlarged view and the enlarged view after analysis finishes to curve data the user, utilizes the printing function of word then, prints output, generates report.
Claims (5)
1. aircraft hydraulic pressure test distributed test system, comprise data acquisition instrument module [1], test controller [2], signal conditioner [3], the network switch [4], LXI instrument control data bus [5], field data module [6], interface modular converter [7], field data bus [8] and serial communication data/address bus [9], and testing software, it is characterized in that, use several data bus and several data acquisition module to realize the long line transmission of distributed data capture and survey data in this test system simultaneously, and, finish the data capture in the multiple signal measurement at the different different data acquisition rates of data acquisition module execution.
2. a kind of aircraft hydraulic pressure test distributed test system according to claim 1, it is characterized in that: use LXI instrument control data bus [5] to realize the high-speed data acquisition operation, finish measuring recording quick variable signal such as stress/strain, pressure in the test; In the high speed acquisition operation, by the communication between the LXI instrument control data bus [5] and the network switch [4], control data acquisition instrument module [1] is carried out the data acquisition operations by test controller [2]; The signal of data acquisition instrument module [1] institute acquisition and recording comes from the output of signal conditioner [3], or the strain signal of tested hydraulic pipe; The output that is input as type sensors such as pressure, flow in the tested hydraulic system of signal conditioner [3].
3. a kind of aircraft hydraulic pressure test distributed test system according to claim 1 is characterized in that: use field data bus [8] to realize the low speed data acquisition operations, finish the measuring recording to slow variable signal such as temperature, switching value in the test; In the low speed data acquisition operations, by the communication between serial communication data/address bus [9] and the interface convertor [7], control field data module [6] is carried out the data acquisition operations by test controller [2]; Come from the output of type sensor such as temperature in the tested hydraulic system or switching value signal by the signal of field data module [6] institute acquisition and recording.
4. a kind of aircraft hydraulic pressure test distributed test system according to claim 1, it is characterized in that, testing software by man-machine interface operation control, instrument configuration management, System self-test and calibration, the configuration management of measurement engineering, data capture storage, survey data temperature correction, data management and the graph curve analysis that derivation, data readback are browsed, cursor is controlled, report that the formation component module forms, it is as follows that each module is finished function:
Man-machine interface operation control unit module provides the man-machine interaction operation interface, receives the big operation input of user, operates selection according to the user, finishes the setting of parameter, or other assembly module of scheduled for executing, carries out function corresponding;
Instrument configuration Management Unit module has automatic identification instrument module, searches the instrument module in the test system automatically, finishes the initialization operation to the system instrument module;
System self-test and calibration assembly module are finished the functions such as self check, self calibration, the inspection of line, zero testing and compensating resistance of data acquisition instrument module;
Measure engineering configuration management assembly module, setting, data capture engineering definition function with measurement parameter, realize in being provided with of measurement parameter measuring that channel selecting, sensor are selected, engineering unit conversion, gain selection, the selection of bridge circuit parameter, alarm threshold setting etc., comprise Test Information, instrument information, test description, task start and end mode, sample rate selection etc. in the data capture engineering definition, preserve above-mentioned parameter with data capture project file form;
Data capture memory module module according to instrument configuration management with measure set parameter in the engineering configuration management, is finished multi-channel data and is gathered in real time and storage, simultaneously, also finishes the real-time thresholding of multichannel and judges, important parameter is implemented emergency processing;
Survey data temperature compensation component module is used for the data that the strain measurement passage is gathered are carried out temperature correction;
Data management and derivation assembly module manage survey data with the database form, deposit trystate information and image data in the measurement in the database, and data can be retrieved and can derive from database by multiple condition, and multiple form is arranged;
Data readback navigation mechanism module provides test mission data readback function afterwards, can the select time section carry out local playback;
The graph curve analytic unit module of cursor control, provide with the graph curve form and shown survey data, can define a plurality of display windows in the graphic display, y coordinate and abscissa can be set, locally amplify or function such as dwindle each display window, and carry out multiwindow and switch in real time, also provide the analytic function of cursor control,, and carry out analysis of pressure pulsation, stress analysis survey data operation such as carry out that maximum value, minimum value are searched;
Report formation component module provides the function that generates test report, includes correlation test information, survey data, graph curve and to the markup information of graph curve etc.
5. an aircraft hydraulic pressure test distributed testing method is characterized in that, may further comprise the steps:
1) executor-machine interface operation control unit module, people-machine operation interface environments is provided, operate the selection input according to the user, carry out following arbitrary or a plurality of assembly module: instrument configuration Management Unit module, System self-test and calibration assembly module, measurement engineering configuration management assembly module, finish the setting of parameter;
2) according to present parameter state, carry out data capture memory module module, finish the data capture and the data storage of measurement signal; In the data capture, test controller is judged image data according to task control LXI instrument module work, makes and reporting to the police or emergency processing, also can be according to user's control operation, and carry out and suspend data capture or stop operation such as data capture;
3) select according to operation, carry out survey data temperature compensation component module image data is carried out the temperature correction processing;
4) select according to operation, carry out following arbitrary or a plurality of assembly module: data management and the graph curve analytic unit module that derives assembly module, data readback navigation mechanism module, cursor control, finish each assembly module function corresponding;
5) on the basis of operations such as data capture and data processing, according to practical application request, carry out data management selectively and derive assembly module, or data readback navigation mechanism module, or the graph curve analytic unit module of cursor control, output then can reports on the implementation formation component module be finished for test report.
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| CN102359879A (en) * | 2011-06-21 | 2012-02-22 | 北京瑞风协同科技股份有限公司 | Measurement and control system for test network and data acquisition control method |
| CN102606304A (en) * | 2012-03-21 | 2012-07-25 | 中国北车集团大连机车车辆有限公司 | Method for monitoring heavy oil diesel generator set |
| CN102650569A (en) * | 2011-02-24 | 2012-08-29 | 中国航空工业集团公司西安飞机设计研究所 | Transmission efficiency measuring device and method for airplane high-lift actuating system |
| CN103062155A (en) * | 2012-12-19 | 2013-04-24 | 天津工程机械研究院 | Modularization hydraulic comprehensive testing system and testing method thereof |
| CN103541948A (en) * | 2013-10-25 | 2014-01-29 | 北京理工大学 | Distributed condition monitoring network system for hydraulic element test beds |
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| CN104655082A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Airplane control plane deflection angle measuring system |
| CN104656631A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Distributed frequency response characteristic measuring and analyzing system |
| CN105372530A (en) * | 2015-11-24 | 2016-03-02 | 中国航空工业集团公司沈阳飞机设计研究所 | Single test debugging system with real-time simulation test capability |
| CN106338929A (en) * | 2016-08-09 | 2017-01-18 | 北京航天试验技术研究所 | Multi-type test parameter unified index modeling method |
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| CN111123861A (en) * | 2019-12-11 | 2020-05-08 | 北京航空航天大学 | Distributed data acquisition system and method of large-scale multi-field coupling test equipment |
| CN111721636A (en) * | 2020-06-30 | 2020-09-29 | 江苏永大化工设备有限公司 | Pressure-bearing equipment pressure-resistant test automatic loading control system |
| CN113780824A (en) * | 2021-09-14 | 2021-12-10 | 北京理工大学重庆创新中心 | Data acquisition management system |
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| CN102359879B (en) * | 2011-06-21 | 2014-05-07 | 北京瑞风协同科技股份有限公司 | Measurement and control system for test network and data acquisition control method |
| CN102359879A (en) * | 2011-06-21 | 2012-02-22 | 北京瑞风协同科技股份有限公司 | Measurement and control system for test network and data acquisition control method |
| CN102606304A (en) * | 2012-03-21 | 2012-07-25 | 中国北车集团大连机车车辆有限公司 | Method for monitoring heavy oil diesel generator set |
| CN102606304B (en) * | 2012-03-21 | 2014-01-08 | 中国北车集团大连机车车辆有限公司 | Method for monitoring heavy oil diesel generator set |
| CN103062155B (en) * | 2012-12-19 | 2015-11-18 | 天津工程机械研究院 | A kind of modularization hydraulic pressure comprehensive test system and test method thereof |
| CN103062155A (en) * | 2012-12-19 | 2013-04-24 | 天津工程机械研究院 | Modularization hydraulic comprehensive testing system and testing method thereof |
| CN103970024A (en) * | 2013-01-29 | 2014-08-06 | 中国航空工业集团公司西安飞机设计研究所 | Real-time simulation system of large aircraft hydraulic system |
| CN104568078B (en) * | 2013-10-21 | 2018-01-16 | 哈尔滨飞机工业集团有限责任公司 | A kind of method of field calibration ground hydraulic exerciser |
| CN104568078A (en) * | 2013-10-21 | 2015-04-29 | 哈尔滨飞机工业集团有限责任公司 | On-site ground hydraulic experiment device calibration method |
| CN103541948A (en) * | 2013-10-25 | 2014-01-29 | 北京理工大学 | Distributed condition monitoring network system for hydraulic element test beds |
| CN104655082A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Airplane control plane deflection angle measuring system |
| CN104656631A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Distributed frequency response characteristic measuring and analyzing system |
| CN104142218B (en) * | 2014-04-17 | 2017-11-21 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of airplane Hydraulic Tube Results of Vibration decision method |
| CN104142218A (en) * | 2014-04-17 | 2014-11-12 | 中国航空工业集团公司沈阳飞机设计研究所 | Airplane hydraulic pipeline vibration test result judgment method |
| CN105372530A (en) * | 2015-11-24 | 2016-03-02 | 中国航空工业集团公司沈阳飞机设计研究所 | Single test debugging system with real-time simulation test capability |
| CN106338929A (en) * | 2016-08-09 | 2017-01-18 | 北京航天试验技术研究所 | Multi-type test parameter unified index modeling method |
| CN106741865A (en) * | 2016-11-30 | 2017-05-31 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of airplane servo actuating system hydraulic control method |
| CN106741865B (en) * | 2016-11-30 | 2019-03-08 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of airplane servo actuating system hydraulic control method |
| CN107719699A (en) * | 2017-09-25 | 2018-02-23 | 中国航空工业集团公司西安飞机设计研究所 | One kind experiment comprehensive control management system and method |
| CN107719699B (en) * | 2017-09-25 | 2020-12-01 | 中国航空工业集团公司西安飞机设计研究所 | Comprehensive test control management system and method |
| CN109269759A (en) * | 2018-09-11 | 2019-01-25 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of more equipment synchronization continuous scanning pressure testing method based on udp protocol |
| CN111123861A (en) * | 2019-12-11 | 2020-05-08 | 北京航空航天大学 | Distributed data acquisition system and method of large-scale multi-field coupling test equipment |
| CN111123861B (en) * | 2019-12-11 | 2021-08-31 | 北京航空航天大学 | Distributed data acquisition system and method of large-scale multi-field coupling test equipment |
| CN111721636A (en) * | 2020-06-30 | 2020-09-29 | 江苏永大化工设备有限公司 | Pressure-bearing equipment pressure-resistant test automatic loading control system |
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