CN104181908B - A kind of DFDAU test platform and method of testing - Google Patents
A kind of DFDAU test platform and method of testing Download PDFInfo
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Abstract
The present invention relates to a kind of test platform and method of testing of digital flight data acquisition component.Airborne vehicle DFDAU test platform, including：Input interface, it receives test data；Signal generating module is emulated, it produces emulation signal according to the test data；Wiring expansion equipment, it is used for forming gateable termination, wherein the emulation signal is accessed in DFDAU to be tested by the wiring expanding unit；And comparison module, it compares from test data and the test data of input to the input interface of the DFDAU to be tested based on the emulation signal.
Description
Technical field
The present invention relates to a kind of airborne vehicle test equipment and method of testing, especially, is related to a kind of digital airborne vehicle and flies
Row data acquisition component DFDAU test platform and method of testing.
Background technology
The core component for being acquired and handling for aircraft states data or control command data on airborne vehicle is several
Word formula aircraft flight data securing component DFDAU（Digital Flight Data Acquisition Unit）.DFDAU is
A kind of integrated on-board data collection and processing system.All the sensors collection and relevant device transmission aircraft states number
According to or control command data be all sent in airborne vehicle DFDAU this device.
DFDAU includes data acquisition subsystem and data process subsystem.DFDAU data acquisition subsystem is used for gathering
The control command data of real-time the aircraft states data or control system of each sensor on airborne vehicle, and will obtain
Data conversion into data signal storage arrive quick access recorder QAR（Quick Access Recorder）In.
DFDAU data process subsystem, such as aircraft states monitoring system ACMS（Aircraft Condition
Monitoring System）It can be realized according to the data that DFDAU is collected in real time fashion and aircraft states are monitored.
When meeting certain triggering logic, ACMS generations include particular aircraft status data or the report of control command data accordingly
Text.Message can be shown by airborne indicator, be printed by airborne printing device, or be stored in data disks for navigational matters
Or flight crew uses after airborne vehicle misses the stop or navigates.Message can also be through airborne Aircraft Communication addressing and reporting system
(ACARS) ground SITA receiving stations, are sent to by equipment such as very high frequency(VHF), high frequency, satellite receivers, finally proceed to aviation public affairs
On the terminal computer of department.
Although DFDAU is extremely important for airborne vehicle, due to lacking corresponding DFDAU test platforms, DFDAU is to boat
Pocket status data or the failure of control command data processing are but difficult to be found.Especially for some aircraft states data
Or control command data, it could be exported after having to pass through DFDAU processing on display or printer, and DFDAU is to this
The failure that a little aircraft states data or control command data processing occur can not almost be found.Therefore, this area needs
It is a kind of for DFDAU equipment test platform in itself and method of testing.
The content of the invention
For technical problem present in prior art, according to an aspect of the present invention, a kind of airborne vehicle DFDAU is proposed
Test platform, including：Input interface, it receives test data；Emulate signal generating module, its according to the test data,
Produce emulation signal；Wiring expansion equipment, its be used for form gateable termination, wherein it is described emulation signal pass through it is described
Wiring expanding unit is accessed in DFDAU to be tested；And comparison module, it compares from the DFDAU to be tested based on described
Emulate the test data and the test data of input to the input interface of signal.
According to another aspect of the present invention, propose it is a kind of on upper described airborne vehicle DFDAU test platforms to be measured
The method that examination DFDAU is tested, including：Test data is loaded on described test platform；Produced according to the test data
Raw emulation signal；By the emulation signal access wiring expansion equipment；The emulation signal from the wiring expansion equipment is received,
And the emulation signal is accessed in DFDAU to be tested；And compare and be based on the emulation signal from the DFDAU to be tested
Test data and be loaded into the test data of the test platform.
Brief description of the drawings
Below, the preferred embodiment of the present invention will be described in more detail with reference to accompanying drawing, wherein：
Fig. 1 is the schematic diagram of DFDAU working conditions on airborne vehicle；
Fig. 2 is the test platform architecture schematic diagram according to an embodiment of the invention for being used to test DFDAU；
Fig. 3 is emulation signal generating module structural representation according to an embodiment of the invention；
Fig. 4 is that the structure of alternating voltage ratio signal ACVR signal generating units according to an embodiment of the invention is shown
It is intended to；
Fig. 5 is the structure of alternating voltage ratio signal ACVR signal generating units according to another embodiment of the invention
Schematic diagram；
Fig. 6 is the structural representation of alternating voltage synchronization SYNC signal generating unit according to an embodiment of the invention
Figure；
Fig. 7 is the structural representation of alternating voltage synchronization SYNC signal generating unit according to another embodiment of the invention
Figure；
Fig. 8 is the structural representation of patchboard according to an embodiment of the invention；
Fig. 9 is the schematic diagram of patchboard panel according to an embodiment of the invention；
Figure 10 is test DFDAU according to an embodiment of the invention method flow diagram；
Figure 11 is the test airborne vehicle message triggering according to one embodiment of present invention on the test platform of the present invention
The method flow diagram of logic.
Embodiment
Fig. 1 is the schematic diagram of airborne vehicle DFDAU working conditions.Digital flight data acquisition component DFDAU（Digital
Flight Data Acquisition Unit）Receive from airborne sensor or the aircraft states data of other equipment or control
Order data processed.The aircraft states data or control command data of acquisition are converted to number by DFDAU data acquisition subsystem
Word signal is broadcasted.Quick access recorder QAR（Quick Access Recorder）Receive the aircraft states of broadcast
Data or control command data are simultaneously stored.Wherein, a part of data are stored in flight data recorder FDR（Flight
Data Recorder）, i.e., in black box, so as to which after unexpected incidents occur for airborne vehicle, investigation point is carried out for the relevant personnel
Analysis.
Aircraft states monitoring system ACMS（Aircraft Condition Monitoring System）Also from DFDAU
Data acquisition subsystem receive broadcast aircraft states data or control command data.ACMS is monitored, is collected, and records aviation
Device status data or control command data, and predetermined aircraft states data or control command are exported under the conditions of certain trigger
Data, used for navigational matters and the daily monitoring aircraft states of flight crew and performance.Due to its data content and form can by with
Family is changed, so referred to as message.
ACMS messages are controlled by integrated application software and produced.Message by particular aircraft state parameter threshold value or multinomial
The combinational logic of particular aircraft state parameter, i.e., specific message trigger logic to trigger.ACMS manufacturer design and
ACMS messages caused by the message triggering logic of test are referred to as basic message.Many basic messages have become civil aviation pipe
Manage the standard of agencies dictate.By taking Boeing-737 NG aircrafts as an example, its basic message of ACMS used there are about more than 20.
Fig. 2 is the test platform architecture schematic diagram according to an embodiment of the invention for being used to test DFDAU.According to this
One embodiment of invention, the DFDAU that DFDAU test platforms can be tested include the 2233000- of Teledyne companies production
8XX types, the 967-0212-XXX types of HoneyWell companies production, or the 261303879-XXXX types of Sagem companies production,
Wherein X.. represents concrete model.It will be appreciated by those skilled in the art that above model is only for example.The test platform of the present invention
Other DFDAU test can also be applied to.
As illustrated, the test platform of the present invention includes input interface, for inputting aircraft states data or control life
Make data.According to one embodiment of the present invention, input interface be wired network interface, USB interface, radio network interface,
Blue tooth interface etc..It will be appreciated by those skilled in the art that the implementation of any data input is used equally for test platform
The configuration of input interface.
For the signal environment on accurate reproduction airborne vehicle, the DFDAU of test platform of the invention input is from imitative
Emulation signal caused by module occurs for true signal.The type and characteristic and the boat of aircraft sensors collection of these emulation signals
The data that pocket signal and other aircraft states components transmit are completely the same.
According to one embodiment of present invention, the data source of the emulation signal of signal generating module, i.e. test data, bag
Include two kinds：A kind of is that the airborne vehicle running status write according to aircraft data specification emulates data, and another kind is stored in machine
Carry the aircraft states data or control command data on quick access recorder QAR.
Using the airborne vehicle running status emulation more preferable simulation of data write according to aircraft data specification and reproduce each
The generation of class event.Because airborne vehicle operation is very high to reliability requirement, there is a certain particular event in operation in airborne vehicle
Probability is unpredictable, and any of arbitrary signal can be provided by using emulation data are voluntarily write according to aircraft data specification
Combination between value and arbitrary signal, the generation of manual control particular event, so as to greatly improve testing efficiency.
Use the True Data or control command of the aircraft states that are stored on airborne quick access recorder QAR
True Data can completely reproduce the true environment of airborne vehicle, can preferably reproduce the situation during generation of failure.
According to one embodiment of present invention, the emulation signal that DFDAU is inputted on test platform of the invention is related to navigating
Multiple systems on pocket, including：Housing construction, engine, avionics system, Mechatronic Systems, hydraulic pressure, fuel oil, ring control, with
And steerable system etc..The signal kinds being related to are a lot, including：Analog signal, discrete signal and aviation dedicated bus signal
Deng；Also, these signals have the correlation on time and value.
According to one embodiment of present invention, test data via input interface by being connected to based on data highway system
Signal generating module.These data/address bus include but are not limited to PXI buses, pci bus, PCIE buses, vxi bus etc..
According to one embodiment of present invention, test platform further comprises signal condition adapter.Signal condition is adapted to
Device is further nursed one's health emulating signal caused by the signal generating module based on data highway system, such as is amplified or declined
Subtract, isolate, the means such as multipath conversion, to ensure the quality and stability of signal, satisfaction is directed to aircraft states aircraft data
The high requirement of signal accuracy.
According to one embodiment of present invention, test platform further comprises wiring expansion equipment.By the signal of conditioning
Before DFDAU is inputed to, strengthen the alternative of input by wiring expansion equipment, form the optional wiring dress for leading to and connecing
Put.According to one embodiment of present invention, wiring expansion equipment includes different subregions, and each subregion is directed to a kind of class signal
Type.Thus, the importing joint of various signals is very clear in wiring expansion equipment, both facilitates management, is also convenient for realizing various
The logical combination of signal.
The emulation signal of signal generating module generation is input in wiring expansion equipment after conditioning, enters back into DFDAU
In, realize the simulation of working environments of the DFDAU in airborne vehicle running.
According to one embodiment of the present invention, the aircraft states data that DFDAU data acquisition subsystems are broadcasted are received
Or control command data, then it is compared with the initial data of input, it is possible to determine whether DFDAU is working properly, from
And realize the test to DFDAU.
According to one embodiment of present invention, test platform includes a comparison module, compares and carrys out the defeated of test platform
The aircraft states data or control command data of incoming interface and the aircraft states of DFDAU data acquisition subsystems broadcast
Data or control command data, and export comparative result.According to one embodiment of present invention, when multinomial aircraft states being present
When data or control command data need to compare, comparison module can be automatically performed the aircraft states data of each input interface
Or in control command data and the message corresponding aircraft states data or control command data comparison, and export the two
Different aircraft states data or control command data.
According to another embodiment of the invention, the data signal of DFDAU broadcast is not received directly, and can pass through solution
The analysis DFDAU messages that issue obtain DFDAU output data.Visitor can be produced by voluntarily writing ACMS messages triggering logic
Family message.Customization message can make it that those skilled in the art are no longer limited by the limitation of parameter in basic message, and energy
Directly facing tens thousand of individual aircraft states parameters.
For DFDAU test, according to one embodiment of present invention, problem is likely to occur for DFDAU processing
Parameter write customization message triggering logic.After corresponding message is obtained, by the aircraft states data in message or control
Order data processed is contrasted with the aircraft states data or control command data inputted, it is possible to determines DFDAU to the boat
Whether the processing of pocket status data or control command data is correct.
According to one embodiment of present invention, test platform includes a comparison module, compares and carrys out the defeated of test platform
Aircraft states data or control command number in the aircraft states data or control command data and the message of incoming interface
According to, and export comparative result.According to one embodiment of present invention, when multinomial aircraft states data or control command number being present
During according to needing to compare, comparison module can be automatically performed each input interface aircraft states data or control command data and
The comparison of corresponding aircraft states data or control command data in the message.
According to one embodiment of present invention, test platform includes printer and/or display.Printer and/or display
Device receives DFDAU output, is decoded by the output to DFDAU, and the message of DFDAU outputs is printed and/or shown
Come, check and use for operating personnel.According to one embodiment of present invention, the printer of test platform is virtual printer.
According to one embodiment of present invention, test platform further comprises general printing and/or display device, and it shows
Or the result of printing comparison module output.
According to one embodiment of present invention, the emulation signal generation point of test platform and part of detecting respectively include one
Power supply is used to provide power supply to provide the various pieces of test platform.For example, 115V400Hz AC powers.
Fig. 3 is emulation signal generating module structural representation according to an embodiment of the invention.As shown in figure 3,
In the present embodiment, emulation signal generating module is integrated with multiple emulation signal generating units.According to one embodiment of present invention,
Test data is inputted by the test data input interface of test platform, is connected under the control of bus control unit by data/address bus
To each emulation signal generating unit of emulation signal generating module.
According to one embodiment of present invention, using the data acquisition processing system of PXI bus Open architecture, by each
Kind interface board realizes the acquisition and control of signal on the platform of bussing technique.Wherein, PXI buses are National Instruments
(NI) opening, the modular instrument bus of a kind of high-performance low price of issue.It will be appreciated by those skilled in the art that PXI
Bus is only described and illustrated as an optional example.Other kinds of data/address bus can also be applied to the side of the present invention
In case.
According to one embodiment of present invention, the integrated emulation signal generating unit of signal generating module is emulated including discrete
Signal generating unit, voltage signal generating unit, analog signal generating unit and bus signals generating unit.
According to one embodiment of present invention, discrete signal generating unit includes on-off model generating unit；Simulation letter
Number generating unit includes：Alternating voltage ratio signal ACVR generating units, and synchronizing signal SYNC generating units；Bus signals
Generating unit includes ARINC429 bus signals generating units, and ARINC619 bus signals generating units.
According to one embodiment of present invention, switching value generating unit includes high density general-purpose relay matrix, and it is through matching somebody with somebody
Put to emulate the on-off model of hundreds of passages, such as the general hilted broadsword list of high density puts relay card.According to one of the present invention
Embodiment, switching value generating unit include digital switch array.
According to one embodiment of present invention, voltage signal generating unit includes quiescent voltage output board card, emulates low pressure
Direct current LLDC（Low Level Direct Current）Signal.According to one embodiment of present invention, voltage signal occurs single
Member can be the PXI-6704 multifunctional static voltage output boards of NI companies production.
According to one embodiment of present invention, the substandard data signal generating units of ARINC429 include 429 bus boards
Card.According to one embodiment of present invention, 429 bus boards can be the ACX429 boards of AIM companies production.
According to one embodiment of present invention, the substandard data signal generating units of ARINC619 include 619 bus boards
Card.According to one embodiment of present invention, 619 bus boards can be the ACX619 boards of AIM companies production.
Fig. 4 is that the structure of alternating voltage ratio signal ACVR signal generating units according to an embodiment of the invention is shown
It is intended to.As shown in figure 4, ACVR signal generating units 400 include ac voltage signal converting unit 401, it is connected to power supply will
115V400Hz ac voltage signal is converted to 26V400Hz reference ac voltage signal；Data signal branch road 402, it connects
Receive the data signal from bus system；Modulator 403, it receives the ac voltage signal and data signal, and the numeral is believed
Number be converted to alternating voltage ratio signal;And output transformer 404, it exports the alternating voltage ratio signal of generation.According to
One embodiment of the present invention, ac voltage signal converting unit 401 are carried out by the ac voltage signal provided power supply
Frequency conversion and/or transformation, produce required reference ac voltage signal.According to one embodiment of present invention, ACVR signals are sent out
Raw unit is D/A converting unit of the data signal to alternating voltage ratio signal.
Fig. 5 is the structure of alternating voltage ratio signal ACVR signal generating units according to another embodiment of the invention
Schematic diagram.As shown in figure 5, ACVR signal generating units 500 include ac voltage signal converting unit 501, it passes through to power supply
Ac voltage signal carry out frequency conversion and/or transformation, produce 26V400Hz ac voltage signals.
ACVR signal generating units 500 also include data signal branch road 502, modulator 503, and output transformer 504.
Data signal branch road 502 further comprises bus adapter 5021, bus driving circuits 5022 and level shifting circuit 5023.Always
Line adapter 5021 is connected with external bus system, for obtaining the data signal from external bus.Bus driving circuits
5022 are used for driving the data signal.The level of the data signal is adjusted to needed for modulator 503 by level shifting circuit 5023
Level.Modulator 503 receives from ac voltage signal converting unit 501 and refers to ac voltage signal, according to by data signal
The data signal from data/address bus of branch road input, corresponding alternating voltage is generated to carrying out amplitude modulation with reference to ac voltage signal
Rate signal.
Export transformer 504 and export the alternating voltage ratio signal.
For example, redundant hydraulic pressure value is represented by alternating voltage ratio signal on airborne vehicle.In order to realize to this
The emulation of one signal, modulator 503 complete the modulation to reference voltage signal according to below equation：
Up（AC）=26（-0.49E-5Pressure+0.5985）；
Wherein, Up（AC）Represent the virtual value of ac voltage signal；Pressure represents the pressure value of input, and its value is
0-4000PSI.Thus, simulated by the can of ACVR signal generating units 500 standby on airborne vehicle in the range of 0-4000PSI
With hydraulic pressure value alternating voltage ratio signal.
Fig. 6 is the schematic diagram of synchronous SYNC signal generating unit according to an embodiment of the invention.Synchronous SYNC letters
Number also referred to as shaft angle signal.As shown in fig. 6, SYNC signal generating unit includes an ac voltage signal converting unit 601, its
The ac voltage signal for being connected to power supply offer is converted to required two groups and refers to alternating voltage synchronizing signal；Data signal branch road
602, it receives the data signal from bus system；Modulator 603, it receives the alternating voltage synchronizing signal and numeral is believed
Number, the data signal is converted into alternating voltage synchronizing signal；And output transformer 604, it exports the synchronizing signal of generation.
According to one embodiment of present invention, SYNC signal generating unit is D/A of the data signal to alternating voltage synchronizing signal
Converting unit.
Fig. 7 is the structural representation of alternating voltage synchronization SYNC signal generating unit according to another embodiment of the invention
Figure.As shown in fig. 7, SYNC signal generating unit 700 includes ac voltage signal converting unit 701, it is connected to power supply will
115V400Hz ac voltage signal is converted to two groups of 28V400Hz reference ac voltage signal.
SYNC signal generating unit 700 also includes data signal branch road 702 and modulator 703.Data signal branch road 702 wraps
Include bus adapter 7021, bus driving circuits 7022 and level shifting circuit 7023.Bus adapter 7021 and external bus
System connects, for obtaining the data signal from external bus.Bus driving circuits 7022 are used for driving the data signal.Electricity
The level of the data signal is adjusted to the level needed for modulator 703 by flat change-over circuit 7023.
The modulator 703 of SYNC signal generating unit includes quadrant switches 7031, sin multipliers 7032 and cos multipliers
7033.Two groups of ac voltage signals respectively enter sin multipliers 7032 and cos multipliers 7033 after quadrant switches 7031
In.First 2 quadrants for illustrating angle of data signal from external bus, remainder represent the angle of a 0-90 degree
Value.Thus, the angle value of 0-360 degree is represented.First 2 of data signal are input in quadrant switches 7031, remainder input
Into sin multipliers 7032 and cos multipliers 7033.After sin multipliers 7032 and cos multipliers 7033, two groups of exchanges
Phase difference between voltage signal has meant that the angle value.
SYNC signal generating unit 700 further comprises amplifier 7041 and 7042, and sin multipliers 7032 and cos are multiplied
The output signal of musical instruments used in a Buddhist or Taoist mass 7033 carries out power amplification；And output transformer 705, for exporting the synchronizing signal.Hereby it is achieved that
The simulation of shaft angle signal.
According to one embodiment of present invention, said modulator can be realized by four-quadrant multiplier.
According to one embodiment of present invention, the wiring expansion equipment of test platform part of detecting includes patchboard.Fig. 8 is
The structural representation of patchboard according to an embodiment of the invention.As illustrated, patchboard 800 includes：Patchboard panel
801 and multiple output interface 802-804 etc..According to one embodiment of present invention, patchboard 801 includes multiple plug wire holes, often
Individual plug wire hole can be communicated with certain type of aircraft signal transmission equipment grafting.Each output interface corresponds to a type of
Signal, it is connected respectively to the input interface of DFDAU corresponding types.Each output interface includes multiple lead-out terminals, each defeated
A plug wire hole for going out terminal with patchboard 801 is corresponding.
Fig. 9 is the schematic diagram of patchboard panel according to an embodiment of the invention.As shown in figure 9, patchboard panel
Including multiple regions：Aircraft type designator selection region 901, analog signal region 902 and bus signals region 903.It is optional
Ground, patchboard panel include on-off model region.Aircraft type designator selection region 901 is used to refer to the type of aircraft.
By the way that different types of signal is placed individually into different regions, tester is facilitated to carry out test signal
Management.Also, by patchboard, tester can complete the logical groups of a variety of different types of test signals as needed
Close, aircraft states data or the collection situation of control command data signal under simulating realistic environment.Patchboard panel is further
Including plant-grid connection region 904 and ground wire access area 905.
According to one embodiment of present invention, alternatively, patchboard includes automatic switching module.From patchboard panel
801 input signal is linked into the input of automatic switching module, and the output end of automatic switching module is connected to multiple outputs and connect
Mouth 802-804.Automatic switching module realizes that each road input signal of patchboard panel 801 and multiple output interface 802-804's is each
Automatic switchover between individual lead-out terminal.Using automatic switching module, operating personnel need not be manually operated in patchboard panel 801
Switching between each road signal, can greatly facilitate test operation.
According to another embodiment of the invention, wiring expansion equipment includes automatic switching module, input interface and output
Interface.The input interface includes multiple input terminals, and each input terminal can be transmitted with certain type of aircraft signal and set
Standby connection communication.The output interface includes multiple lead-out terminals, an input of each lead-out terminal and the input interface
Son is corresponding.The automatic switching module of wiring expansion equipment, for the patchboard panel Shang Ge road input signals with it is described
Automatic switchover between each lead-out terminal of multiple output interfaces.
According to one embodiment of present invention, automatic switching module can include the switch matrix being arranged in rows and columns.Institute
Some input signals form each row and all lead-out terminals form each row.One is set on the crosspoint of each row and column
Switch, so as to form switch matrix.Input signal and output end are realized by these switch cans in controlling switch matrix
Automatic switchover between son.
According to one embodiment of present invention, alternatively, patchboard includes universal meter module and line scanning module.Due to
Patchboard includes the large number of connection line between input and output end, and these connection lines may be due to a variety of causes
And fail.And the inspection for the circuit that fails is a cumbersome and laborious job.Universal meter module is by measuring connection line
Electric current and voltage, can examine whether connection line fails.Line scanning module can be automatic between each connection line
Switching, so as to be connected to universal meter module in different connection lines.Can be with by universal meter module and line scanning module
It is convenient to realize " self-test ", check all failure circuits.
Figure 10 is test DFDAU according to an embodiment of the invention method flow diagram.As illustrated, method of testing
In 1000, in step 1010, be loaded into by input interface on test platform be used as test data according to air communications standard
The aircraft states data or control command data voluntarily write or the aircraft states data from QAR or control command number
According to.In step 1020, according to test data is loaded into, airborne vehicle real running environment is simulated by emulating signal generating module generation
Emulation signal.In step 1030, the emulation signal of generation is inputted into DFDAU to be tested.According to some specific realities of the present invention
Apply example, the step for may further include conditioning and adaptation to emulating signal.According to the present invention some specific embodiments,
The step for may further include manual wiring configuration input DFDAU various signals.In step 1040, pass through comparison module
Whether the data of DFDAU broadcast more to be tested and the test data being loaded into are consistent.Or in step 1050, by comparing mould
Whether the data in the message that block DFDAU more to be tested is issued are consistent with the test data of loading.In step 1060, according to than
Relatively result draws test result.
Figure 11 is the method flow of the test DFDAU on the test platform of the present invention according to one embodiment of present invention
Figure.As shown in figure 11, in method of testing 1100, in step 1110, aircraft type designator is selected on patchboard, and by required mould
Intend in signal, bus signals lead access patchboard.In step 1120, the aircraft states data voluntarily write or control are imported
Order data or aircraft states data or control command data from QAR.In step 1130, bus control unit connects from input
Aircraft states data or control command data are read in mouthful, and is occurred to each signal in emulation signal generating module
Generating unit, produce respective switch amount signal, analog signal and/or bus signals.In step 1140, each signal generating unit
After the caused conditioned adapter conditioning of signal, by patchboard, DFDAU to be tested is inputted.
After step 1150, DFDAU reception signals to be tested, it is translated into data signal and outwards broadcasts.In step
1160, the aircraft states data or control command data of DFDAU broadcast to be tested are obtained, DFDAU broadcast more to be tested
Aircraft states data or control command data be loaded into whether aircraft states data or control command data it is consistent.If
To consistent result, then into step 1170, the result that DFDAU to be tested is tested by this is drawn；If not obtaining, in step
Rapid 1180, export the corresponding fault messages of DFDAU.
After step 1151, DFDAU reception signals to be tested, its internal ACMS system is according to acquisition particular aircraft state
The message of data or control command data triggers logic, report of the generation comprising corresponding aircraft states data or control command data
Text.In step 1161, comparison module receives, analytic message, and judges aircraft states data acquired in message or control
Order data be loaded into whether aircraft states data or control command data it is consistent.If obtaining consistent result, enter
Step 1170, the result that DFDAU to be tested is tested by this is drawn；If not obtaining, in step 1180, DFDAU phases are exported
The fault message answered.
The test platform of the present invention has completely reproduced the data environment on airborne vehicle.Carried out on the test platform of the present invention
Test result and the test result carried out on actual airborne vehicle are completely the same.Therefore, DFDAU is put down in the test of the present invention
After completing test on platform, it may be directly applied in airborne vehicle.The test platform and method of testing of the present invention realizes DFDAU's
Fast and accurately test.Thus, operating personnel can more accurately monitor the state of airborne vehicle, ensure the safety of flight.
Above-described embodiment is used for illustrative purposes only, and is not limitation of the present invention, about the general of technical field
Logical technical staff, without departing from the present invention, it can also make a variety of changes and modification, it is therefore, all equivalent
Technical scheme should also belong to category disclosed by the invention.
Claims (27)
1. a kind of airborne vehicle DFDAU test platform, including：
Input interface, it receives test data and exports the test data to emulation signal generating module；
The emulation signal generating module, it produces emulation signal according to the test data；
Wiring expansion equipment, it is used for forming gateable termination, wherein the emulation signal is extended by the wiring
Equipment is accessed in DFDAU to be tested；And
Comparison module, it compares from test datas of the DFDAU to be tested based on the emulation signal with inputting to described
Input interface is simultaneously exported to the test data of the emulation signal generating module by the input interface；
Wherein emulating signal generating module includes discrete signal generating unit, voltage signal generating unit, analog signal generation list
Member and/or bus signals generating unit；Wherein described input interface is connected to various discrete signal by bus system and list occurs
Member, voltage signal generating unit, analog signal generating unit and/or bus signals generating unit；
Analog signal generating unit includes alternating voltage ratio signal ACVR signal generating units, the alternating voltage ratio signal
ACVR signal generating units include ac voltage signal converting unit, and it, which is connected to power supply and produced, has required virtual value and frequency
The ac voltage signal of rate；Data signal branch road, it receives the data signal from the bus system；Modulator, it is received
The ac voltage signal and data signal, the data signal is converted into alternating voltage ratio signal；And output transformation
Device, it exports the alternating voltage ratio signal.
2. test platform according to claim 1, wherein aircraft states data or control command data are included according to boat
The aircraft states data or control command data that empty communication specification is write.
3. test platform according to claim 1, wherein aircraft states data or control command data are included from boat
Pocket quick access recorder QAR aircraft states data or control command data.
4. the test platform according to Claims 2 or 3, wherein the comparison module DFDAU broadcast to be tested
Based on it is described emulation signal test data with input to the input interface test data it is whether consistent, and output differ
The aircraft states data or control command data of cause.
5. test platform according to claim 1, wherein being reported caused by the comparison module DFDAU to be tested
Test data and the test data of input to the input interface based on the emulation signal in text.
6. test platform according to claim 1, wherein discrete signal generating unit include on-off model generating unit；
Wherein described on-off model generating unit includes relay array.
7. test platform according to claim 1, wherein discrete signal generating unit include on-off model generating unit；
Wherein described on-off model generating unit includes switch arrays.
8. test platform according to claim 1, wherein the data signal branch road includes bus adapter, itself and outside
Bus system connects, for obtaining the data signal from external bus；Bus driving circuits, it is used for driving the numeral letter
Number；And level shifting circuit, the level of the data signal is adjusted to the level needed for the modulator by it.
9. test platform according to claim 1, wherein the modulator by the data signal branch road according to being inputted
Data signal from the bus system, the corresponding alternating current of generation is modulated to the virtual value of the ac voltage signal
Press rate signal.
10. test platform according to claim 1, wherein analog signal generating unit, which include synchronous SYNC signal, occurs list
Member, the synchronous SYNC signal generating unit include ac voltage signal converting unit, and it, which is connected to needed for power supply and generation, has
The ac voltage signal of valid value and frequency；Data signal branch road, it receives the data signal from bus system；Modulator, its
The ac voltage signal and data signal are received, the data signal is converted into alternating voltage synchronizing signal；And output transformation
Device, it exports the alternating voltage synchronizing signal.
11. test platform according to claim 1, wherein analog signal generating unit, which include synchronous SYNC signal, occurs list
Member, the synchronous SYNC signal generating unit include：
Ac voltage signal converting unit, it is connected to power supply and produces two groups of ac voltage signals；
Data signal branch road, it includes：
Bus adapter, it is connected with external bus system, for obtaining the data signal from external bus；
Bus driving circuits, it is used for driving the data signal；And
Level shifting circuit, the level of the data signal is adjusted to required level by it；
Modulator, it includes：
Quadrant switches；
Sin multipliers；And
Cos multipliers,
Wherein described two groups of ac voltage signals respectively enter the sin multipliers and the cos after the quadrant switches
Multiplier, the data signal is converted to the ac voltage signal of two groups of phase bits of difference one；
First amplifier and the second amplifier, it is used for putting the output signal of sin multipliers and cos multipliers progress power
Greatly；And
Transformer is exported, it is used for the ac voltage signal for exporting two groups of differences one phase bit.
12. test platform according to claim 1, wherein the bus signals generating unit is believed including ARINC429 buses
Number generating unit and ARINC629 bus signals generating units.
13. test platform according to claim 1, further comprising signal condition adapter, mould is occurred to the signal
Emulation signal is nursed one's health caused by block.
14. test platform according to claim 1, the wiring expansion equipment includes patchboard, and the patchboard includes：
Patchboard panel；And multiple output interfaces；
Wherein, patchboard panel includes multiple plug wire holes, and each plug wire hole can be with the emulation signal generating module all the way
Output signal grafting communicates；
Wherein, each output interface corresponds to a type of signal, and the input for being connected respectively to DFDAU corresponding types connects
Mouthful；
Wherein, each output interface includes multiple lead-out terminals, a plug wire of each lead-out terminal and the patchboard panel
Hole is corresponding.
15. test platform according to claim 14, the patchboard panel includes：Analog signal region, bus signals
Region, plant-grid connection region and ground wire access area.
16. test platform according to claim 14, the patchboard includes automatic switching module, and it is used for connecing described
Automatic switchover between drum panel Shang Ge road input signals and each lead-out terminal of the multiple output interface.
17. test platform according to claim 14, wherein the wiring expansion equipment includes input interface and output connects
Mouthful；The input interface includes multiple input terminals, and each input terminal can be with the emulation signal generating module all the way
Output signal grafting communicates；The output interface includes multiple lead-out terminals, each lead-out terminal and the patchboard panel
One plug wire hole is corresponding；
The wiring expansion equipment includes automatic switching module, its be used for the input interface each input terminal with it is described
Automatic switchover between each lead-out terminal of multiple output interfaces.
18. the test platform according to claim 16 or 17, wherein the automatic switching module includes being arranged in rows and columns
Switch matrix.
19. test platform according to claim 1, wherein the wiring expansion equipment includes universal meter module and circuit is swept
Retouch module；Wherein described universal meter module can examine whether connection line loses by measuring the electric current and voltage of connection line
Effect；Wherein described line scanning module can automatically switch between each connection line, so as to which universal meter module be connected to
In different connection lines.
20. it is a kind of on the test platform of the airborne vehicle DFDAU as described in any one of claim 1-19 to be tested
The method that DFDAU is tested, including：
Test data is loaded on described test platform；
Emulation signal is produced according to the test data；
By the emulation signal access wiring expansion equipment；
The emulation signal from the wiring expansion equipment is received, and the emulation signal is accessed in DFDAU to be tested；And
Compare from test datas of the DFDAU to be tested based on the emulation signal and be loaded into the survey of the test platform
Try data；
Aircraft states data or control command data or control command data are read in from input interface using bus control unit,
And each signal generating unit sent it in the emulation signal generating module, produce respective switch amount signal, simulation
Signal and/or bus signals；
The analog signal includes the ac voltage signal as caused by analog signal generating unit, and the bus signals are included by total
Data signal caused by linear system system, the data signal modulate the ac voltage signal with required virtual value and frequency
Generate alternating voltage ratio signal.
21. method of testing according to claim 20, write wherein the test data bag includes according to air communications specification
Aircraft states data or control command data.
22. method of testing according to claim 20, wherein the test data bag, which includes, quickly accesses note from airborne vehicle
Record device QAR aircraft states data or control command data.
23. the method for testing according to claim 21 or 22, extended wherein the DFDAU to be tested will come from the wiring
The emulation signal of equipment is converted to aircraft states data or control command data and broadcasted；Wherein described comparison step includes：
Compare input to the test data and the aircraft states data or control command data of DFDAU broadcast of input interface.
24. the method for testing according to claim 21 or 22, further comprises：Wherein described DFDAU to be tested will come from
The emulation signal of the wiring expansion equipment is converted to aircraft states data or control command data and patrolled according to message triggering
Collect the generation message relevant with aircraft signal transmission equipment to be tested；Wherein described comparison step includes comparing input to input
The test data of interface and the aircraft states number in the message relevant with aircraft signal transmission equipment to be tested
According to or control command data.
25. method of testing according to claim 24, further comprises：Adjust message triggering logic.
26. method of testing according to claim 20, further comprises：For particular aircraft status data on airborne vehicle
Or control command data, it is determined that in the message comprising the particular aircraft status data or control command data and the message
Message triggering logic.
27. method of testing according to claim 20, further comprises：By switching value caused by each signal generating unit
Signal, analog signal and/or the conditioned adapter conditioning of bus signals.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310191379.4A CN104181908B (en) | 2013-05-22 | 2013-05-22 | A kind of DFDAU test platform and method of testing |
| CA2852080A CA2852080C (en) | 2013-05-22 | 2014-05-21 | Test apparatus and test method based on dfdau |
| US14/284,017 US9639997B2 (en) | 2013-05-22 | 2014-05-21 | Test apparatus and test method based on DFDAU |
| EP14169533.8A EP2818953B1 (en) | 2013-05-22 | 2014-05-22 | Test apparatus and test method based on DFDAU |
| KR1020140061831A KR102052219B1 (en) | 2013-05-22 | 2014-05-22 | Test apparatus and test method based on dfdau |
| AU2014202810A AU2014202810B2 (en) | 2013-05-22 | 2014-05-22 | Test apparatus and test method based on dfdau |
| TW103117845A TWI616377B (en) | 2013-05-22 | 2014-05-22 | Test appartus based on digital flight data acquisition unit (dfdau) |
| JP2014106166A JP6223277B2 (en) | 2013-05-22 | 2014-05-22 | Test apparatus and test method based on DFDAU |
| SG10201402576SA SG10201402576SA (en) | 2013-05-22 | 2014-05-22 | Test Apparatus and Test Method based on DFDAU |
| HK15100979.8A HK1200546A1 (en) | 2013-05-22 | 2015-01-28 | Test apparatus and test method based on dfdau dfdau |
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| CN201310191379.4A CN104181908B (en) | 2013-05-22 | 2013-05-22 | A kind of DFDAU test platform and method of testing |
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| CN104181908B true CN104181908B (en) | 2017-12-01 |
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| CN104965143A (en) * | 2015-07-13 | 2015-10-07 | 北京博曼迪汽车科技有限公司 | Combustion gas ECU test system |
| CN105159141B (en) * | 2015-08-11 | 2019-03-22 | 中国航空工业集团公司西安飞机设计研究所 | The verification method and device of Flying by wire rule transmission ratio |
| CN107450013B (en) * | 2017-09-15 | 2023-05-12 | 北京锐视康科技发展有限公司 | Circuit board functional integrity test platform and test method |
| CN112498736B (en) * | 2019-09-16 | 2022-09-09 | 上海飞机制造有限公司 | Universal bus test system suitable for AFDX bus |
| CN111210668B (en) * | 2019-12-30 | 2022-02-15 | 四川函钛科技有限公司 | Landing stage flight trajectory offset correction method based on time sequence QAR parameter |
| CN111071481B (en) * | 2020-01-02 | 2021-06-01 | 北京航天测控技术有限公司 | Universal test platform integration method and system |
| CN114002590B (en) * | 2020-07-28 | 2024-01-30 | 北京机械设备研究所 | Travel switch detection method and system |
| CN112441255B (en) * | 2020-11-10 | 2022-08-30 | 山东盖特航空科技有限公司 | Automatic testing device and method for flight parameter quick-taking recording system |
| CN113885392B (en) * | 2021-10-18 | 2024-04-26 | 卡斯柯信号有限公司 | Fuse-free discrete output safety state escape protection system for safety output |
| CN114217599B (en) * | 2021-12-14 | 2023-10-17 | 北京机电工程研究所 | An aircraft ground energy console |
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