CN109279048A - A kind of engine and APU revolving speed and avionics system are crosslinked closed loop detection method - Google Patents
A kind of engine and APU revolving speed and avionics system are crosslinked closed loop detection method Download PDFInfo
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- CN109279048A CN109279048A CN201811382812.1A CN201811382812A CN109279048A CN 109279048 A CN109279048 A CN 109279048A CN 201811382812 A CN201811382812 A CN 201811382812A CN 109279048 A CN109279048 A CN 109279048A
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- revolving speed
- back production
- physical quantity
- master controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of engine/APU revolving speeds and avionics system to be crosslinked closed loop detection method, the method includes the output end of function signal generator module is connected with aircraft system under test (SUT) by test cable, revolving speed physical quantity back production module is connected with the bus interface on aircraft parting surface by bus cable again, revolving speed physical quantity back production module acquires in real time and parses the rotary speed data that back production is arrived by bus cable according to the acquisition and analysis mode being arranged in preparatory software programming, the rotary speed data is fed back into master controller, the signal that function signal generator module exports is compared last master controller with the data of revolving speed physical quantity back production module back production, judgement tests whether normal.Detection method of the invention reduces cable fabrication cycle, is easy to use, improves testing efficiency, while constituting closed loop test system, be easy to judge test failure situation.
Description
Technical field
The present invention relates to test technique automatic field, in particular to a kind of simulation based on virtual instrument platform exploitation flies
Machine engine and APU revolving speed and avionics system are crosslinked, while carrying out the automated detection method of closed loop back production.
Background technique
Engine and APU revolving speed on aircraft cannot be provided actually in ground debugging mode, can only be defeated using analog form
Out.
Since large-scale amphibious aircraft engine rotational speed signal has 4 tunnels, in addition auxiliary power (APU) revolving speed, needs 5 tunnels altogether
Tach signal is currently by function signal generator by being attached with each road test interface, operation signal generator,
According to the conversion requirements of revolving speed and frequency, required signal frequency is issued, this method need to make independent cable, and can only survey one by one
Examination is not easy the disadvantages of forming automatic detection, while not having signal back production function, it is difficult to form fault location.
Summary of the invention
It is cumbersome the purpose of the present invention is issuing frequency signal using function signal generator for existing, it is not easy
The disadvantages of forming automatic detection provides a kind of large-scale amphibious aircraft engine of simulation and APU revolving speed and avionics system friendship
Join closed loop detection method, improve testing efficiency, forms closed loop detection.
The technical solution of the present invention is as follows:
A kind of engine/APU revolving speed and avionics system are crosslinked closed loop detection method, which is characterized in that the method is based on
One industrial personal computer, the industrial personal computer include master controller and the function signal generator module connecting with master controller and revolving speed object
Reason amount back production module, the method includes engine/APU tach signal is carried out software programming, and in the control of master controller
System is lower to be converted to frequency signal output by the function signal generator module, is then detected, detection method includes:
The output end of function signal generator is connected with aircraft system under test (SUT) by test cable, then passes through bus cable
Revolving speed physical quantity back production module is connected with the bus interface on aircraft parting surface, revolving speed physical quantity back production module is according to soft in advance
The acquisition and analysis mode being arranged in part programming pass through bus cable and acquire and parse the rotary speed data that back production is arrived in real time, by this turn
To master controller, the signal and revolving speed physical quantity that last master controller exports function signal generator module return fast data feedback
The data for adopting module back production are compared, and judgement tests whether normal.
Preferably, the industrial personal computer is using the industrial personal computer of integration PXI platform, and the master controller is based on the industrial personal computer
Master controller, the function signal generator module use PXI-3303 function signal generator board, the revolving speed physics
It measures back production module and uses PXI-3705ARINC429 board, the PXI-3705ARINC429 module passes through 429 bus of ARINC
Master controller and the bus interface on aircraft parting surface are connected.
Preferably, the method will also carry out closed-loop regulation, the method for closed-loop regulation to industrial personal computer before being detected
Are as follows: after tach signal being carried out software programming by test request by master controller, turned by function signal generator module
It is changed to frequency signal to be exported, then under main controller controls, revolving speed physical quantity back production module is according to preparatory software programming
The data of the acquisition of middle setting and analysis mode acquisition function signal generator module output, and compare sending and back production data
Consistency.
Preferably, by engine/APU tach signal carry out software programming method comprising steps of
Step 11: first being initialized the board of function signal generator module using RS3303_Init () function, setting
The board handle；
Step 12: using RS3303_OutputSettingWrite () function, collocation channel parameter information；
Step 13: selection of speed, the revolving speed n tested needed for choosing, and the value is transmitted as global variable；
Step 14: when tachometer value is greater than 0, according to the formula of f=83.333 × n, tach signal is become into frequency signal,
Middle n indicates tachometer value, is indicated with percents, such as n=80%, i.e. n is 0.8.
Step 15: tach signal output is referred to using RS3303_OuputWaveformSettingWrite () function sets
Routing reference waveform output parameter is exported using RS3303_OutputStart () function starting waveform, while by timer
It is enabled；
Step 16: timer timing draws continuous wave according to sampling number and collected array of data；
Step 17: stopping the output of certain channel using RS3303_OutputStop () function；
Step: 18: closing the board handle using RS3303_Close () function.
Preferably, revolving speed physical quantity back production module according to the acquisition and analysis mode being arranged in preparatory software programming software
Programmed method comprising steps of
Step 21: first using RS3705_Init () function by revolving speed physical quantity back production module board card initialization, setting should
Board handle；
Step 22: using RS3705_RecvChannelReset () function to channel reset is received, using RS3705_
SendChannelReset () function resets sendaisle；
Step 23: parameter configuration being carried out to receiving channel using RS3705_RecvChannelConfigWrite (), is used
RS3705_SendChannelConfigWrite () carries out parameter configuration to sendaisle；
Step 24: creating a new thread ReceiveThread () in revolving speed physical quantity back production module, then use
RS3705_RecvChannelStart () function starts to acquire；
Step 25: in new thread ReceiveThread (), being obtained by RS3705_RecvChannelRecv () function
Take collecting quantity；If quantity is greater than 0, label, ssm and sdi are read, and intercepts valid data position from data, passes through judgement
Sign bit, then data are parsed, obtain required physical quantity；
Step 26: terminating thread using TerminateThread () function；
Step 27: closing the board handle using RS3705_Close () function.
The invention has the benefit that detection method of the invention, reduces cable fabrication cycle, it is easy to use, improves
Testing efficiency, while closed loop test system is constituted, it is easy to judge test failure situation.
Detailed description of the invention
Fig. 1 is the flow chart of the method for the invention that engine/APU tach signal is carried out to software programming；
Fig. 2 is the method flow diagram of revolving speed physical quantity back production module software programming.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in detail.It should be noted that in the feelings not conflicted
Under condition, the feature in following embodiment and embodiment can be combined with each other.
A kind of engine/APU revolving speed and avionics system are crosslinked closed loop detection method, and the method is based on an industrial personal computer,
The industrial personal computer includes master controller and the function signal generator module connecting with master controller and revolving speed physical quantity back production mould
Block the method includes engine/APU tach signal is carried out software programming, and passes through institute under the control of master controller
It states function signal generator module and is converted to frequency signal output, large-scale amphibious aircraft engine and APU tach signal
It is required that being that obtain duty ratio be 50%, amplitude is ± 6V, and the square-wave signal of frequency f=83.333 × n (n be revolving speed %) is shown,
The function signal generator of this detection method requires to be fixed on ± 6V with amplitude, and duty ratio 50%, the adjustable form of frequency connects
Continuous output square-wave signal.
For the industrial personal computer of the present embodiment using the industrial personal computer of integration PXI platform, the master controller is based on the industry control
The master controller of machine, the function signal generator module use PXI-3303 function signal generator module, the revolving speed object
Reason amount back production module uses PXI-3705ARINC429 module.Software programming includes using LabWindows/CVI virtual instrument skill
Art, by using drawing in the function and virtual instrument software of PXI-3303 function signal generator board, wave function progress is soft
Part programming, it further includes by using PXI-3705ARINC that is obtained by the programming software, which is engine/APU tach signal,
Multithreading carries out software programming in the function and virtual instrument software of 429 boards, and by the software programming, what is obtained is to turn
The method of the acquisition and analysis mode of fast physical quantity back production module.
Specifically, by engine/APU tach signal carry out software programming method comprising steps of
Step 11: first being initialized the board of function signal generator module using RS3303_Init () function, setting
The board handle；
Step 12: using RS3303_OutputSettingWrite () function, collocation channel parameter information；
Step 13: selection of speed, the revolving speed n tested needed for choosing, and the value is transmitted as global variable；
Step 14: when tachometer value is greater than 0, according to the formula of f=83.333 × n, tach signal is become into frequency signal,
In, n indicates tachometer value, is indicated with percents, such as n=80%, i.e. n is 0.8.
Step 15: tach signal output is referred to using RS3303_OuputWaveformSettingWrite () function sets
Routing reference waveform output parameter is exported using RS3303_OutputStart () function starting waveform, while by timer
It is enabled；
Step 16: timer timing draws continuous wave according to sampling number and collected array of data；
Step 17: stopping the output of certain channel using RS3303_OutputStop () function；
Step: 18: closing the board handle using RS3303_Close () function.
Specifically, software of the revolving speed physical quantity back production module according to the acquisition and analysis mode being arranged in preparatory software programming
Programmed method comprising steps of
Step 21: first using RS3705_Init () function by revolving speed physical quantity back production module board card initialization, setting should
Board handle；
Step 22: using RS3705_RecvChannelReset () function to channel reset is received, using RS3705_
SendChannelReset () function resets sendaisle；
Step 23: parameter configuration being carried out to receiving channel using RS3705_RecvChannelConfigWrite (), is used
RS3705_SendChannelConfigWrite () carries out parameter configuration to sendaisle；
Step 24: creating a new thread ReceiveThread () in revolving speed physical quantity back production module, then use
RS3705_RecvChannelStart () function starts to acquire；
Step 25: in new thread ReceiveThread (), being obtained by RS3705_RecvChannelRecv () function
Take collecting quantity；If quantity is greater than 0, label, ssm and sdi are read, and intercepts valid data position from data, passes through judgement
Sign bit, then data are parsed, obtain required physical quantity；
Step 26: terminating thread using TerminateThread () function；
Step 27: closing the board handle using RS3705_Close () function.
After above-mentioned software programming is ready to, before to engine/APU revolving speed and avionics system crosslinking closed loop detection, first
Closed-loop regulation is carried out to industrial personal computer, the method for closed-loop regulation includes carrying out tach signal by test request by master controller
After software programming, frequency signal is converted to by function signal generator module and is exported, then under main controller controls,
Revolving speed physical quantity back production module acquires function signal generator mould according to the acquisition being arranged in preparatory software programming and analysis mode
The data of block output, and compare the consistency of sending and back production data.
After the completion of program debugging, start formally to be detected, formal detection specifically includes:
The output end of function signal generator is docked with the electric connector of aircraft system under test (SUT) by test cable, then is led to
It crosses 429 bus cable of ARINC and revolving speed physical quantity back production module is connected with the bus interface on aircraft parting surface；
Then, the revolving speed to be exported is set, tach signal output order is then clicked, at this point, connect with master controller
The waveform output in 5 channels should be shown on the interface of display, while starting the receive capabilities of 429 bus of ARINC, revolving speed object
Reason amount back production module is acquired and is parsed in real time by bus cable according to the acquisition and analysis mode being arranged in preparatory software programming
The rotary speed data is fed back to master controller by the rotary speed data that back production is arrived, and real-time display is through ARINC429 bus according to ICD agreement
Revolving speed physical quantity after acquisition parsing.
The signal that last master controller exports function signal generator module and revolving speed physical quantity back production module back production
Data are compared, while the data on observable aircraft EICAS display show qualification if three is consistent；If any appoint
What side is inconsistent, then can carry out fault location to inconsistent equipment, be analyzed and processed respectively.
Embodiment belonging to above only expresses concentration embodiment of the invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as, it is noted that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (5)
1. a kind of engine/APU revolving speed and avionics system are crosslinked closed loop detection method, which is characterized in that the method is based on one
Platform industrial personal computer, the industrial personal computer include master controller and the function signal generator module connecting with master controller and revolving speed physics
Back production module is measured, the method includes engine/APU tach signal is carried out software programming, and in the control of master controller
Frequency signal output is converted to by the function signal generator module down, is then detected, detection method includes:
The output end of function signal generator module is connected with aircraft system under test (SUT) by test cable, then passes through bus cable
Revolving speed physical quantity back production module is connected with the bus interface on aircraft parting surface, revolving speed physical quantity back production module is according to soft in advance
The acquisition and analysis mode being arranged in part programming pass through bus cable and acquire and parse the rotary speed data that back production is arrived in real time, by this turn
To master controller, the signal and revolving speed physical quantity that last master controller exports function signal generator module return fast data feedback
The data for adopting module back production are compared, and judgement tests whether normal.
2. engine as described in claim 1/APU revolving speed and avionics system are crosslinked closed loop detection method, which is characterized in that institute
Industrial personal computer is stated using the industrial personal computer of integration PXI platform, master controller of the master controller based on the industrial personal computer, the letter
Number signal generator module uses PXI-3303 function signal generator module, and the revolving speed physical quantity back production module uses PXI-
3705 ARINC429 modules, the PXI-3705 ARINC429 module pass through 429 bus of ARINC for master controller and aircraft
Bus interface on parting surface connects.
3. engine as described in claim 1/APU revolving speed and avionics system are crosslinked closed loop detection method, which is characterized in that institute
Stating method will also carry out closed-loop regulation, the method for closed-loop regulation to industrial personal computer before being detected are as follows: will by master controller
After tach signal carries out software programming by test request, it is defeated that frequency signal progress is converted to by function signal generator module
Out, then under main controller controls, revolving speed physical quantity back production module is according to the acquisition and parsing being arranged in preparatory software programming
Mode acquires the data of function signal generator module output, and compares the consistency of sending and back production data.
4. engine as described in claim 1/APU revolving speed and avionics system are crosslinked closed loop detection method, which is characterized in that will
Engine/APU tach signal carry out software programming method comprising steps of
Step 11: the board of function signal generator module being initialized using RS3303_Init () function first, which is set
Card handle；
Step 12: using RS3303_OutputSettingWrite () function, collocation channel parameter information；
Step 13: selection of speed, the revolving speed n tested needed for choosing, and the value is transmitted as global variable；
Step 14: when tachometer value is greater than 0, according to the formula of f=83.333 × n, tach signal being become into frequency signal；
Step 15: tach signal output, it is specified logical using RS3303_OuputWaveformSettingWrite () function sets
Road reference waveform output parameter is exported using RS3303_OutputStart () function starting waveform, while timer being made
Energy；
Step 16: timer timing draws continuous wave according to sampling number and collected array of data；
Step 17: stopping the output of certain channel using RS3303_OutputStop () function；
Step: 18: closing the board handle using RS3303_Close () function.
5. engine as claimed in claim 1 or 2/APU revolving speed and avionics system are crosslinked closed loop detection method, feature exists
In revolving speed physical quantity back production module includes according to the software program method of the acquisition and analysis mode that are arranged in preparatory software programming
Step:
Step 21: the board is arranged in revolving speed physical quantity back production module board card initialization using RS3705_Init () function first
Handle；
Step 22: using RS3705_RecvChannelReset () function to channel reset is received, using RS3705_
SendChannelReset () function resets sendaisle；
Step 23: parameter configuration being carried out to receiving channel using RS3705_RecvChannelConfigWrite (), is used
RS3705_SendChannelConfigWrite () carries out parameter configuration to sendaisle；
Step 24: creating a new thread ReceiveThread () in revolving speed physical quantity back production module, then use RS3705_
RecvChannelStart () function starts to acquire；
Step 25: in new thread ReceiveThread (), being adopted by the acquisition of RS3705_RecvChannelRecv () function
Collect quantity；If quantity is greater than 0, label, ssm and sdi are read, and intercepts valid data position from data, by judging symbol
Position, then data are parsed, obtain required physical quantity；
Step 26: terminating thread using TerminateThread () function；
Step 27: closing the board handle using RS3705_Close () function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382812.1A CN109279048B (en) | 2018-11-20 | 2018-11-20 | Engine and APU (auxiliary Power Unit) rotating speed and avionics system cross-linking closed-loop detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382812.1A CN109279048B (en) | 2018-11-20 | 2018-11-20 | Engine and APU (auxiliary Power Unit) rotating speed and avionics system cross-linking closed-loop detection method |
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| Publication Number | Publication Date |
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| CN109279048A true CN109279048A (en) | 2019-01-29 |
| CN109279048B CN109279048B (en) | 2021-09-24 |
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Cited By (2)
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| CN112070654A (en) * | 2020-07-27 | 2020-12-11 | 恒宇信通航空装备(北京)股份有限公司 | Graphic display control module of multifunctional display of aircraft avionics system |
| CN117446203A (en) * | 2023-10-26 | 2024-01-26 | 中航通飞华南飞机工业有限公司 | 429 bus general aircraft avionics cross-linking fault test method |
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| CN108241358A (en) * | 2017-12-08 | 2018-07-03 | 西安飞机工业（集团）有限责任公司 | A kind of method for the interaction of airplane complete machine avionics data |
| CN108803568A (en) * | 2018-06-08 | 2018-11-13 | 西安应用光学研究所 | One kind is based on ARINC429 bus avionics manipulation simulation system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112070654A (en) * | 2020-07-27 | 2020-12-11 | 恒宇信通航空装备(北京)股份有限公司 | Graphic display control module of multifunctional display of aircraft avionics system |
| CN117446203A (en) * | 2023-10-26 | 2024-01-26 | 中航通飞华南飞机工业有限公司 | 429 bus general aircraft avionics cross-linking fault test method |
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