CN109696899A - A kind of dedicated quality synthesis evaluation system of aircraft ARINC429 bus - Google Patents
A kind of dedicated quality synthesis evaluation system of aircraft ARINC429 bus Download PDFInfo
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- CN109696899A CN109696899A CN201710985729.2A CN201710985729A CN109696899A CN 109696899 A CN109696899 A CN 109696899A CN 201710985729 A CN201710985729 A CN 201710985729A CN 109696899 A CN109696899 A CN 109696899A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The present invention provides a kind of dedicated quality synthesis evaluation system of aircraft ARINC429 bus, including controller and difference protocol layer test module connected to the controller, electrical layer test module and physical layer test module, wherein the protocol layer test module is detected based on the bit error rate and packet loss of the Interface Control File database to ARINC429 bus signals, the electrical layer test module detects the electric parameter of ARINC429 bus signals according to the relevant provision in ARINC429 specification, the physical layer test module is based on spread-spectrum time domain reflectometry and tests ARINC429 bus cable connectivity.
Description
Technical field
The present invention relates to a kind of bus mass assessment system, especially a kind of dedicated quality comprehensive of aircraft ARINC429 bus
Assessment system.
Background technique
With the development and progress of aeronautical technology, electronic information, computer technology, control technology etc., more and more electricity
Subsystem popularizes its use due to its high efficiency, rapidity and reliability.Civil aircraft must assure that its safety
Property, reliability, thus between avionics system and between some airborne sensors or other electronic equipments information friendship
Mutually become a great problem in airplane design." skeleton " and " nerve " of the aeronautical data bus as avionics system, it is right
Aircraft overall performance is improved to play a crucial role.
In Avionics data bus development process, in order to improve its safety, reliability, a series of standard and rule have been formulated
Model, airborne-bus has ARINC-429/629, CSDB, STAN-AG-3838/3910, LTPB, FDDI, AFDX etc., army in terms of mass movement
There are MIL-STD-1553B, 1773, SCI and FC etc. with typical airborne databus.Wherein ARINC429 be a kind of research and development it is relatively early,
The good Avionics data bus of engineer application at present, specification definition is simple and practical, and design maintenance is relatively easy, and design cost is low, electricity
A series of advantages such as sub- equipment and existing avionics system good compatibility become one of the important selection of research and development aircraft.
When in the installation or the ARINC429 bus after maintenance for completing aircraft ARINC429 bus, the matter of signal
Can amount guarantee that the normal transmission of aircraft coherent signal is particularly important, it is therefore necessary to design a set of ARINC429 bus letter
Number assessment system, to complete the quality inspection of ARINC429 bus signals, just can guarantee in this way aircraft ARINC429 bus into
The data transmission of row safety.
Development and the Protocol layer data of signal receiving board card are concentrated mainly on for the research of ARINC429 bus at present
Monitoring.Hardware design is concentrated mainly on for the research of the reception mode of ARINC429 bus signals, using such as ARM, DSP
Or the different processing units such as FPGA realize the acquisition and parsing to data.It is main to the research of ARINC429 bus data monitoring
Protocol layer test is concentrated on, is tested according to quality and reliability of the bus specification to transmission data.And bus data transfer
Quality be not limited only to the integrality on protocol layer, such as certain buses are tested through protocol layer, and the bit error rate remains at
Safe range, but the electrical characteristic of its signal still needs to repair already close to critical state for such bus cable.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of dedicated quality synthesis evaluation system of aircraft ARINC429 bus
System, the on-off connectivity for capableing of electrical characteristic and bus to ARINC429 bus signals are tested, truly real
Now the transmission quality of bus signals is monitored.
Building for present system is based primarily upon NI PXI bus cabinet, one piece of independent high-speed controller, and is applied to
The I/O board of different test modules.Wherein PXI bus cabinet provides the communication connection of controller and test board, and controls
Device is mainly responsible for logic control, the functions such as data processing and Labcard driver.
According to the technique and scheme of the present invention, the dedicated quality synthesis evaluation system of aircraft ARINC429 bus includes that protocol layer is surveyed
Three die trial block, electrical layer test module and physical layer test module component parts.Wherein, protocol layer test module is based on interface
Control file (ICD) database realizing detects the bit error rate and packet loss of ARINC429 bus signals, electrical layer test
Module is according to the relevant provision in ARINC429 specification, to the level of bus signals, rising edge and failing edge, time delay and noise
Than etc. parameters detected, physical layer test module be based primarily upon spread-spectrum time domain reflectometry to bus cable connectivity carry out
Test, predominantly detects the break-make situation of bus cable.
Wherein, protocol layer test module includes 429 buses transmitting-receiving board and 429 buses (protocol layer test bus).Wherein
429 buses transmitting-receiving board is responsible for transmitting and receiving 429 bus data packets, and 429 buses are responsible for the transmission of data.
Wherein, electrical layer test module includes 429 buses transmitting-receiving board, collection of simulant signal board and 429 buses (electricity
Gas-bearing formation tests bus).Wherein, 429 buses transmitting-receiving board is served only for sending 429 bus datas, and collection of simulant signal board is responsible for
High-speed sampling is carried out to the waveform of bus signals, to carry out bus signals waveform electrical characteristics test, 429 buses are responsible for data
Transmission.
(3) physical layer test module includes that random waveform sends board, collection of simulant signal board, 429 bus (physical layers
Test bus) and transfer box.Wherein, random waveform sends board for generating independent pulse and test square wave, analog signal
Analog input card is responsible for carrying out test square wave or test pulse high-speed sampling, and 429 buses are responsible for the transmission of data, and transfer box is responsible for
The on-off connectivity of bus is set.
It is an advantage of the present invention that the test of electrical layer and physical layer is increased on the basis of the test of legacy protocol layer,
It is limited only to bus test no longer in the transmission result of bus signals, and truly realizes the transmission to bus signals
Quality is monitored.
Detailed description of the invention
Other feature and advantage of the invention will be more preferable by the preferred embodiment being described in detail below in conjunction with attached drawing
Ground understands, in which:
Fig. 1 is the structural block diagram of the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to the present invention；And
Fig. 2 is the test flow chart of the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to the present invention.
Specific embodiment
Implementation and use according to the preferred embodiment of the present invention is discussed in detail with reference to the accompanying drawing.However, should manage
Solution, the specific embodiment discussed is merely illustrative implementation and uses ad hoc fashion of the invention, rather than limits this
The range of invention.In description, the statement in the directions such as locations of structures such as upper and lower, left and right, top, bottom of all parts is not
It is absolute, but opposite.When all parts are arranged as shown in the figure, the statement of these directions be it is appropriate, when each in figure
When the position change of a component, the statement of these directions is also corresponding to be changed.
The dedicated quality synthesis evaluation system of aircraft ARINC429 bus is as shown in Figure 1, mainly by NI PXI bus cabinet, control
Device and I/O board composition processed.Wherein PXI bus cabinet provides the communication connection of controller and test board, and controller
It is mainly responsible for logic control, the functions such as data processing and Labcard driver.
Protocol layer test module includes that 429 buses that connect of 429 buses transmitting-receiving board and 429 buses transmitting-receiving board (or are assisted
Discuss layer and test bus), wherein 429 buses transmitting-receiving board is responsible for transmitting and receiving 429 bus data packets, 429 buses are responsible for data
Transmission.Protocol layer test module mainly applies the transmitting-receiving of ARINC429 bus transmitting-receiving board realization data, and then to bus transfer
The bit error rate, packet loss and the transmission rate of data are tested.
Electrical layer test module includes that 429 buses transmitting-receiving board, collection of simulant signal board and 429 buses are (or electrical
Layer test bus), wherein being connected between 429 buses transmitting-receiving board and collection of simulant signal board by 429 buses.Electrical layer is surveyed
Die trial block mainly applies ARINC429 bus board and collection of simulant signal board, wherein 429 buses transmitting-receiving board is only responsible for number
According to transmission, collection of simulant signal board is responsible for acquisition to data waveform, and then realizes the test to electric parameter, such as electricity
Flat, edge, delay and signal-to-noise ratio etc..
Physical layer test module includes that random waveform sends board, collection of simulant signal board, 429 buses (or physical layer
Test bus) and transfer box, wherein random waveform sends and is connected between board and collection of simulant signal board by 429 buses
It connects.Physical layer test module mainly applies random waveform that board and collection of simulant signal board occurs, and wherein random waveform occurs
Board is responsible for acquiring waveform, be realized according to spread-spectrum time domain reflectometry to total for sending square wave and impulse wave, analog input card
The judgement and positioning of line cable connectivity fault.
The testing process of the dedicated quality synthesis evaluation system of aircraft ARINC429 bus is as shown in Figure 2.First by user into
Row model selection automatically selects corresponding hardware board according to different test pattern systems, then begins to guidance user and surveys
Try the setting of data.According to the difference of model selection, test data is not also identical.
Protocol layer test includes test data parameter setting, test data is sent, test data receives, data parsing, number
According to comparison.
Electrical layer test includes test data parameter setting, test data is sent, test data receives, electrical characteristic analysis
Parsing.
Physical layer test include square wave generate, square wave receive, fault type judgement, impulse wave generate, impulse wave receive with
And fault distance judgement.
Protocol layer and electrical layer are tested, test data type, test data quantity and survey are defined by the user first
Try the parameter of rate.Then system realizes the generation of initial data, and hardware board is driven to carry out by calling ICD database
It sends.The reception of data is completed by digital board (ARINC429 bus receives and dispatches board) in protocol layer test module, and by controlling
Device is completed to send data and receives the comparison of data, and then calculates the parameters such as the analysis bit error rate, packet loss.And electrical layer is tested,
The acquisition of data is completed by collection of simulant signal board, realizes Waveform reproduction, and analyzed by controller and extract relevant parameter, example
Such as level, edge, delay and signal-to-noise ratio.
Physical layer is tested, test data is by system automatically generated.Board sender is occurred by random waveform first
Wave number evidence, and received by collection of simulant signal board, and then realize the judgement to fault type.If judging faulty deposit
Board is then being occurred by random waveform and is sending pulse data, is equally being received by collection of simulant signal board, and then is being realized
Fault location.
It is an advantage of the present invention that the test of electrical layer and physical layer is increased on the basis of the test of legacy protocol layer,
It is limited only to bus test no longer in the transmission result of bus signals, and truly realizes the transmission to bus signals
Quality is monitored.
The technology contents and technical characterstic of specific embodiments of the present invention are had revealed that above, it being understood, however, that in this hair
Under bright creative ideas, those skilled in the art can be to various features disclosed above and the feature not being explicitly illustrated herein
Combination make various changes and improve, but belong to protection scope of the present invention.The description of above-described embodiment be exemplary and
It is not limiting, protection scope of the present invention is determined by claim.
Claims (6)
1. a kind of dedicated quality synthesis evaluation system of aircraft ARINC429 bus, which is characterized in that including controller and respectively with
Protocol layer test module, electrical layer test module and the physical layer test module of controller connection, wherein the protocol layer is surveyed
Die trial block is detected based on the bit error rate and packet loss of the Interface Control File database to ARINC429 bus signals, the electricity
Gas-bearing formation test module detects the electric parameter of ARINC429 bus signals according to the relevant provision in ARINC429 specification,
The physical layer test module is based on spread-spectrum time domain reflectometry and tests ARINC429 bus cable connectivity.
2. the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to claim 1, which is characterized in that also wrap
NI PXI bus cabinet is included, the controller and the protocol layer test module, the controller and described electrical are provided
Communication connection between layer test module and the controller and the physical layer test module.
3. the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to claim 1 or 2, which is characterized in that
The protocol layer test module includes 429 buses transmitting-receiving board and tests bus, the agreement by the protocol layer that 429 buses are formed
Layer test bus and 429 bus transmitting-receiving board connect, wherein 429 bus transmitting-receiving board is responsible for transmitting and receiving 429 always
Line data packet, the protocol layer test bus are responsible for the transmission of data.
4. the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to claim 3, which is characterized in that described
Electrical layer test module includes 429 bus transmitting-receiving board, the collection of simulant signal board and is formed by 429 buses electrical
Layer test bus, wherein being surveyed between 429 bus transmitting-receiving board and the collection of simulant signal board by the electrical layer
Bus connection is tried, wherein 429 bus transmitting-receiving board is responsible for for sending 429 bus datas, the electrical layer test bus
The transmission of data, the collection of simulant signal board is responsible for carrying out high-speed sampling to the waveform of 429 bus signals, to carry out total
Line signal waveform electrical characteristics test.
5. the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to claim 4, which is characterized in that described
Physical layer test module includes that random waveform sends board, the collection of simulant signal board, the physical layer formed by 429 buses
Bus and transfer box are tested, wherein the random waveform is sent between board and the collection of simulant signal board by described
Physical layer tests bus connection, wherein the random waveform sends board for generating independent pulse and test square wave, the mould
Quasi- signal acquisition board is responsible for carrying out test square wave or test pulse high-speed sampling, and the physical layer test bus is responsible for data
Transmission, the transfer box is responsible for being arranged the on-off connectivity of the physical layer test bus.
6. the dedicated quality synthesis evaluation system of aircraft ARINC429 bus according to claim 1 or 2, which is characterized in that
The electric parameter of ARINC429 bus signals include level, rising edge and the failing edge of ARINC429 bus signals, time delay and
Signal-to-noise ratio parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985729.2A CN109696899B (en) | 2017-10-20 | 2017-10-20 | Special quality comprehensive evaluation system for aircraft ARINC429 bus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710985729.2A CN109696899B (en) | 2017-10-20 | 2017-10-20 | Special quality comprehensive evaluation system for aircraft ARINC429 bus |
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| Publication Number | Publication Date |
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| CN109696899A true CN109696899A (en) | 2019-04-30 |
| CN109696899B CN109696899B (en) | 2022-02-18 |
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Cited By (4)
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| CN111770006A (en) * | 2020-07-29 | 2020-10-13 | 上海仁童电子科技有限公司 | Communication quality evaluation method and device of multifunctional vehicle bus network |
| CN112069601A (en) * | 2020-09-07 | 2020-12-11 | 电子科技大学 | Domain-based multi-level motorized chassis optimization design method |
| CN113609057A (en) * | 2021-06-28 | 2021-11-05 | 陕西星辰电子技术有限责任公司 | Portable CSDB bus coding and decoding device and method |
| CN114859388A (en) * | 2022-04-21 | 2022-08-05 | 中国人民解放军61081部队 | Satellite navigation receiver bit error rate test method and system based on signal ICD |
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| CN112069601A (en) * | 2020-09-07 | 2020-12-11 | 电子科技大学 | Domain-based multi-level motorized chassis optimization design method |
| CN113609057A (en) * | 2021-06-28 | 2021-11-05 | 陕西星辰电子技术有限责任公司 | Portable CSDB bus coding and decoding device and method |
| CN114859388A (en) * | 2022-04-21 | 2022-08-05 | 中国人民解放军61081部队 | Satellite navigation receiver bit error rate test method and system based on signal ICD |
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| CN109696899B (en) | 2022-02-18 |
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