CN104394029B - A kind of total line detecting methods of AFDX based on hybrid channel - Google Patents
A kind of total line detecting methods of AFDX based on hybrid channel Download PDFInfo
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Abstract
The invention provides a kind of total line detecting methods of the AFDX based on hybrid channel, the model of equipment under test clear and definite first counts the AFDX physical channels quantity of equipment under test；Then the AFDX terminal prots of each physical simulation card are opened according to the configuration list file of generation respectively；The test option of AFDX bus physical passages is selected, the passback test data of the one or more passages received is subjected to sample comparison or Effective judgement, final test result is drawn, final test report is generated.The present invention can be realized as carrying out the function and performance of many avionic devices the Distributed Detection of real-time high-efficiency using only an independent AFDX bus comprehensive test platform, highly efficient and easy AFDX bus tests are realized, financial resources and manpower are greatly saved.
Description
Technical field
The invention belongs to avionics bus test technical field, it is related to avionic full-duplex switched-type Ethernet
Multiple terminals of (Avionics Full Duplex Switched Ethernet) and the monitoring of a variety of passage real-time bus are with surveying
Method for testing.
Background technology
AFDX full name are avionic full-duplex switched-type Ethernet (Avionics Full Duplex Switched
Ethernet), it, to carry out a kind of consensus standard that data exchange is defined between avionics system, is to be based on that it, which is,
A kind of bus communication protocol specification (Part7 of ARINC 664) on ARINC429 and 1553B bases.It is right that AFDX networks pass through
Traditional ethernet technology is improved, by its virtual link technology, and dual redundant is managed, confirmability of communication network delay etc.
Superior network service performance, it has also become avionics system data transmission network of new generation.AFDX networks are come from interchanger
For the switching Ethernet of core, it is made up of and communication pattern with typical Ethernet similar, but is due to its birth
From with regard to Aviation electronic equipment, so AFDX buses have high security, certainty and reliability, and form
The relevant criterion of the series of ARINGC 664.
As domestic big Aircraft Project introduces domestic, the various equipment developments based on AFDX bussing techniques just accelerate expansion,
Although foreign countries have the measuring technology of more ripe and system to AFDX bussing techniques, physical layer and link layer are only limitted to, such as
What realizes that carrying out distributed testing to the function and performance of airborne equipment based on a variety of hybrid channel technologies becomes the country at present
The major domain of AFDX researchs.
The content of the invention
In order to overcome the data that commercial board and its software kit are limited only to physical layer and link layer in the prior art to catch
Obtain, to upper level network layers and the unlapped deficiency of application layer, the present invention provides a kind of AFDX buses detection based on hybrid channel
Method, by using the hybrid channel detection technique of single channel and multichannel, realizes dividing in real time to a variety of AFDX terminal devices
Cloth remote detection, according to the function and performance characteristics of these terminal devices, functional simulation that emphasis has been customized, Performance Assessment,
In real time detection, result collect with analysis etc. function, reached and realized a variety of avionic devices without going through AFDX interchangers
The Distributed Detection of AFDX terminals.
The technical solution adopted for the present invention to solve the technical problems comprises the following steps：
1) model of clear and definite equipment under test, counts the AFDX physical channels quantity of equipment under test；
2) configured according to the interface ICD of each AFDX physical channels, the quantity according to AFDX artificial cards is automatically generated equally
The AFDX configuration list files of quantity, one piece of AFDX artificial cards correspondence one AFDX allocation list of configuration；According to AFDX LI(link interface)s
Data content, edits the port 1 of every 1 AFDX terminal and virtual link number, source port number, destination slogan, the UDP of port 2
Port numbers and MTU, generation configuration list file；
3) call AFDX to emulate the api function that card driver is encapsulated respectively according to AFDX allocation lists, open each respectively
The AFDX terminal prots of physical simulation card；
4) according to the testing requirement of different avionic devices, the test option of AFDX bus physical passages is selected
Select, including single channel, multichannel and hybrid channel selection；The test process of every kind of passage is as follows：
A) single channel test process：1 terminal passageway for completing 1 AFDX artificial card is set, and the passage is selected first
Test item quantity, next calls the single channel test case for configuring and generating according to interface ICD；Then these test cases are entered
Row sequence, event or periodically through AFDX buses single channel to be devices under send, while collecting what is be devices under
Return test result；
B) multiple channel test process：2 terminal passageways to 1 AFDX artificial card are configured, and are selected respectively first eventually
The test item species and quantity of A and terminal channel B are held, if terminal A is identical with the species of terminal channel B, one species are used
Test item can just complete test, need to select terminal A and the test item number of terminal channel B respectively if species is different
Amount；Next calls the multiple channel test use-case for configuring and generating according to interface ICD；Then it is these test cases are suitable according to testing
Sequence event or periodically through AFDX bus terminations A and terminal channel B to being devices under sending, while collecting these passages
In the passback test result that is devices under；
C) hybrid channel test process：Multiple terminal passageways to multiple AFDX artificial cards are configured, and are respectively configured every
The test item species and quantity of each terminal passageway of one piece of artificial card, call what is configured and generate according to interface ICD respectively
The test case of each TCH test channel；Then these test cases are ranked up according to different TCH test channels, event or
Periodically through multiple hybrid channels to being devices under sending, while collecting the passback test being devices under in these passages
As a result；
5) the passback test data of the one or more passages received is subjected to sample comparison or Effective judgement, drawn
Final test result, generates final test report.
The beneficial effects of the invention are as follows：Realize using only an independent AFDX bus comprehensive test platform, be not required to lead to
Cross connection and configuration AFDX interchangers, it becomes possible to by the hybrid channel technology of polylith AFDX boards, called using application software
The network configuration of a variety of avionic devices and test data option, so as to realize the function and property to many avionic devices
The Distributed Detection of real-time high-efficiency can be carried out.AFDX bus test technologies based on hybrid channel in the present invention, are solved previously
A variety of aviations that the interchanger that AFDX bus tests concentrate merely on physical layer and link layer and need configuration complicated could be realized
The distributed parallel test of electronic equipment, is improved to not only test AFDX bus tests physical layer and link layer, can be with
By software transfer different avionics data configured to test Internet and application layer, highly efficient and simplicity is realized
AFDX bus tests, be greatly saved financial resources and manpower.
Brief description of the drawings
Fig. 1 is AFDX virtual link principle schematics；
Fig. 2 is traditional AFDX bus testing systems composition schematic diagram；
Fig. 3 is AFDX bus comprehensive test platform composition schematic diagrams；
Fig. 4 is AFDX bus comprehensive test platform test flow charts.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following implementations
Example.
The present invention provides one in real time, efficiently and accurately for big Airplane Avionics are distributed with synthesization test
E measurement technology.Total line detecting method is that the AFDX bussing techniques of the avionic device based on big aircraft realize that emphasis is fixed
Repertoire and the dynamic monitoring of main performance, in real time detection, fault statistics and analysis of some avionic devices etc. are made
Function.
It is embedded into by using more than the two pieces AFDX artificial cards based on pci interface in AFDX bus comprehensive test platforms,
The AFDX network configuration list file different by loading, calls the application software processing module for having developed completion, total using AFDX
Line hybrid channel measuring technology, to realize the Distributed Detection to a variety of avionic devices.
The major function that the present invention is realized is as follows：
1. realize AFDX artificial cards single channel, multichannel or hybrid channel configuration；
2. realize general single channel physical layer data test item selection and monitoring；
3. realize the selection of universal multi-channel physical layer data test item and monitoring；
4. realize multiple avionic device hybrid channels data test selection and monitoring；
5. pair a variety of channel data test result analysis are with assessing；
The specific detection process of the present invention is as follows：
1. according to testing requirement generation configuration list file, realize that AFDX boards are initialized；
According to the function to avionic device and performance test demand, it can use using test software according to each survey
The interface ICD configurations pinged, automatically generate same amount of AFDX according to the quantity of AFDX artificial cards and configure list file.According to
Configuration list file can open corresponding AFDX terminal prots, complete the initialization of AFDX boards.
Hybrid channel test item option is devices under 2. calling
The function of different avionic devices is different from performance detection demand, passes through the application software dynamic of independent research
The test module and physics AFDX terminals for calling the corresponding avionic device editted carry out Software match.Application software can
To be called according to the different handling processes to carrying out corresponding software module of test option.Mainly include single channel physical layer data
Test option, multichannel physical layer data test option and hybrid channel physics and application layer test option.
3. completing the automatic detection to being devices under function and performance, test report is generated.
After the test item of completion hybrid channel is called, test data is called automatically by software to being tested avionic device
Function and performance tested item by item.The detection data that application software is expected according to comparing and the detection data difference of actual passback
It is different, the test report to each tested avionic device is generated item by item, and carries out collecting display.
This method provides one in real time, efficiently and accurately for big Airplane Avionics are distributed with synthesization test
E measurement technology.Total line detecting method is to realize a variety of aviations of big aircraft based on AFDX buses hybrid channel measuring technology
The AFDX buses of electronic equipment, emphasis customized some avionic devices repertoire and main performance dynamic monitoring,
The functions such as detection in real time, fault statistics and analysis.Reach and realized a variety of avionic devices without going through AFDX interchangers
The Distributed Detection of AFDX terminals.
As seen from Figure 1, necessarily need to carry out the exchange of data frame by a VL in avionics system AFDX terminals, can
To say that VL is AFDX communication basis.Virtual Link (virtual link) are a notional communication channel, each VL
A unidirectional connection in logic is defined, i.e., from a source end system to one or more purpose end systems.Each VL exists
It is mutually isolated in logic, and each VL has special Bandwidth guaranteed, and multiple VL data transfer is in effective bandwidth
Interior phase is independent of each other.Between one typical AFDX end system, there must be two independent physical pathways i.e. port A and port B,
The two ES terminals constitute the data transfer approach of AFDX buses, as shown in Figure 1 all can be from the same of source ES terminals per frame data
When purpose ES terminals are transferred to by two-way physical pathway, purpose ES terminals are received after first effective frame, at once can on
It is transmitted to application program processing；After purpose ES terminal on receipt is to a valid data frame, the frame of the same hereinafter serial number is just
It can be dropped.
As seen from Figure 2, traditional AFDX bus testing systems are main is emulated by aobvious control main frame, single commercial AFDX
Card, commercial test software, AFDX exchange mechanisms into.Show first and be only capable of that 1 piece of commercialization AFDX artificial card is installed in control main frame, so will
When testing multiple avionic devices, it is necessary to connection and the matching used commercial AFDX interchangers of artificial card, pass through
Complicated AFDX interchangers configuration, which could be realized, to be tested multiple passages of multiple avionic devices, when test object changes
During change, it is necessary to AFDX interchangers are configured again.Secondly the test software of the system is typically from developer's maturation
Commercial test software, is only capable of realizing simple AFDX bus physical layers and link layer monitoring, it is impossible to carry out for avionic device
The customization of Internet and application layer, and carry out also supporting what single channel was used in mixed way with multichannel during secondary software exploitation
Strategy, larger limits test flexibility.
As seen from Figure 3, AFDX buses comprehensive test platform of the invention is mainly made up of three parts：Aobvious control main frame,
Using test software and AFDX artificial cards.Wherein application test software is run controls on main frame with aobvious, and AFDX artificial cards are total by PCI
Line is inserted into aobvious control main frame.In the test platform, tested at present using two pieces of AFDX artificial cards, every piece of AFDX is imitated
True card includes two terminal interfaces of ES1 and ES2.Specific composition and related request are as follows.
1. aobvious control main frame
Aobvious control host hardware configuration should select to be not less than following configuration：More than 1Ghz processors, more than 512Mb internal memories,
More than 100Gb hard disks.The AFDX simulation cards of more than two pieces pci interfaces should be installed.
Aobvious control host operating system should configure one kind in windows2000 or windows xp or windows vista,
And it successful installation of Visual C++6.0 above versions.
Aobvious control main frame answers the related driver programs of AFDX artificial cards selected by installation, can normally open AFDX artificial cards
Operation software.
2. apply test software
Under the windows operating systems for running on aobvious control main frame, using the programming framework of object-oriented, mainly complete man-machine
Interaction, AFDX artificial cards single channel or multichannel configuration, the selection of general single-channel data test item, general single-channel data prison
Survey, general single-channel data test statisticses are analyzed, each avionic device dedicated program hybrid channel test item is selected, specially
Monitored with program hybrid channel data item, dedicated program hybrid channel sends data item selection, dedicated program hybrid channel and received
Data item is shown and dedicated program hybrid channel test result analysis.
3.AFDX artificial cards
AFDX simulation cards used in current AFDX bus comprehensive test platforms are certain domestic research institute's independent researches
Simulation card, the sharpest edges of this board are exactly under the premise of the standards of 664 PART of ARINC 7 are strictly met, it is possible to achieve
Polylith board is integrated on a comprehensive test platform, while upper application software parallel calling can be supported, so as to prop up
Hold the AFDX bus test technologies based on hybrid channel.
As seen from Figure 4, the step of specific detection method of the invention is as follows：
1) clear and definite test equipment model and required port number；
Because the present invention can carry out function and performance distributed and simultaneously by AFDX buses to multiple avionic devices
Row test, the AFDX bus runs of each equipment pass content and form is not quite similar, and are set so needing to count to be tested
Standby AFDX physical channels quantity, is allowed to be attached with AFDX bus comprehensive test platforms by dedicated connection.
2) AFDX allocation lists are generated on demand；
After the AFDX physical channels quantity of required test has been primarily determined that, matched somebody with somebody according to the interface ICD of each TCH test channel
Put, the quantity according to AFDX artificial cards automatically generates same amount of AFDX configurations list file, i.e., one piece AFDX artificial cards correspondence
Configure an AFDX allocation list.According to the data content of AFDX LI(link interface)s, the port 1 and port 2 of every 1 AFDX terminal are edited
Virtual link number, source port number, destination slogan, UDP port number and MTU, generation configuration list file.
3) corresponding AFDX ports are opened；
According to the relevant configuration information in AFDX allocation lists, AFDX is called to emulate the API letters of card driver encapsulation respectively
Number, opens the AFDX terminal prots of each physical simulation card respectively, completes test preparation.
4) call and be devices under hybrid channel test item option；
According to the testing requirement of different avionic devices, the test option of AFDX bus physical passages is selected,
Current AFDX buses comprehensive test platform supports three kinds of selections：Single channel, multichannel and hybrid channel selection.The survey of every kind of passage
Examination process is as follows：
A) single channel test process：
Single pass method of testing flow is relatively easy, and 1 terminal passageway that need to only complete 1 AFDX artificial card is set i.e.
Can.The test item quantity of the passage is selected first, i.e., to complete the detection of how many to being detected measurement equipment by the passage；Secondly
Call the single channel test case for configuring and generating according to interface ICD；Then these test cases are ranked up, event or
It is complete while collect the passback test result being devices under periodically through AFDX buses single channel to being devices under sending
Into single channel automatic detection.
B) multiple channel test process：
The method of testing of multichannel needs to be configured 2 terminal passageways of 1 AFDX artificial card.Select respectively first
Terminal A and terminal channel B test item species and quantity, if terminal A is identical with the species of terminal channel B, using same
Class testing item can just complete test, need to select terminal A and the test item number of terminal channel B respectively if species is different
Amount；Next calls the multiple channel test use-case for configuring and generating according to interface ICD；Then it is these test cases are suitable according to testing
Sequence event or periodically through AFDX bus terminations A and terminal channel B to being devices under sending, while collecting these passages
In the passback test result that is devices under, complete multicenter auto-inspected.
C) hybrid channel test process：
The method of testing of hybrid channel needs to be configured multiple terminal passageways of multiple AFDX artificial cards.The present invention with
Exemplified by two AFDX artificial cards, the terminal A of first piece of artificial card and the test item species and number of terminal channel B are respectively configured first
Amount, is then reconfigured at the terminal A of second piece of artificial card and the test item species and quantity of terminal channel B；Due to being selection mixing
Passage, the species of adjacency channel is different from, it is necessary to select the test item species and quantity of each TCH test channel respectively；Secondly
The test case for each TCH test channel for configuring and generating according to interface ICD is called respectively；Then by these test cases according to
Different TCH test channels are ranked up, event or periodically through multiple hybrid channels to be devices under send, simultaneously receive
The passback test result being devices under in these passages is taken, hybrid channel automatic detection is completed.
5) test report is generated；
By calling no software module to realize after the automatic test to being devices under, receive one or more logical
The passback test data in road, by the way that these data are carried out into sample comparison or Effective judgement, so as to draw final test knot
Really.According to the different testabilities being devices under whether by and generate final test report.
This technology may apply in multiple Aerial Electronic Equipment integrated test systems, can save to greatest extent to multiple boats
The flexibility ratio and complexity of electric equipment test.
A kind of above-described AFDX bus detection technique methods based on hybrid channel, do not constitute and this technology are protected
The restriction of scope.Any modification equivalent substitution made within the new spirit and principle of this technology and improvement etc., all should
Within the new claims of this technology.
Claims (1)
1. the total line detecting methods of a kind of AFDX based on hybrid channel, it is characterised in that comprise the steps：
1) model of clear and definite equipment under test, counts the AFDX physical channels quantity of equipment under test；
2) configured according to each AFDX LI(link interface)s ICD, the quantity according to AFDX artificial cards automatically generates same amount of AFDX
Configure list file, one piece of AFDX artificial cards correspondence one AFDX allocation list of configuration；According to the data content of AFDX LI(link interface)s, compile
The port 1 of every 1 AFDX terminal and virtual link number, source port number, destination slogan, UDP port number and the MTU of port 2 are collected,
Generation configuration list file；
3) call AFDX to emulate the api function that card driver is encapsulated respectively according to AFDX allocation lists, each AFDX is opened respectively
The AFDX terminal prots of artificial card；
4) according to the testing requirement of different avionic devices, the test option of AFDX bus physical passages is selected, wrapped
Include single channel, multichannel and hybrid channel selection；The test process of every kind of passage is as follows：
A) single channel test process：1 terminal passageway for completing 1 AFDX artificial card is set, and the test of the passage is selected first
Item quantity, next calls the single channel test case for configuring and generating according to interface ICD；Then these test cases are arranged
Sequence, event or periodically through AFDX buses single channel to be devices under send, while collecting the passback being devices under
Test result；
B) multiple channel test process：2 terminal passageways to 1 AFDX artificial card are configured, first respectively selection terminal A and
The test item species and quantity of terminal channel B, if terminal A is identical with the species of terminal channel B, use same kind of test
Item can just complete test, need to select the test item quantity of terminal A and terminal channel B respectively if species is different；Secondly
Call the multiple channel test use-case for configuring and generating according to interface ICD；Then by these test cases according to testing sequence event
Property or periodically through AFDX bus terminations A and terminal channel B to being devices under sending, be tested while collecting in these passages
Try the passback test result of equipment；
C) hybrid channel test process：Multiple terminal passageways to multiple AFDX artificial cards are configured, and are respectively configured each piece
The test item species and quantity of each terminal passageway of artificial card, call respectively according to interface ICD configure and generate it is each
The test case of TCH test channel；Then these test cases are ranked up according to different TCH test channels, event or cycle
Property by multiple hybrid channels to be devices under send, while collect be devices under in these passages passback test knot
Really；
5) the passback test data of the one or more passages received is subjected to sample comparison or Effective judgement, drawn final
Test result, generate final test report.
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| CN105376118B (en) * | 2015-12-12 | 2018-08-21 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of test method of AFDX interchangers sending performance |
| CN106776192B (en) * | 2016-12-28 | 2023-09-19 | 上海埃威航空电子有限公司 | Multifunctional simulation bus test equipment |
| CN107968722B (en) * | 2017-11-10 | 2020-11-13 | 中国航空工业集团公司西安航空计算技术研究所 | Method for converting interface control file into AFDX (avionics full Duplex switched Ethernet) network equipment configuration file |
| CN109218005B (en) * | 2018-11-15 | 2021-03-23 | 苏州裕太微电子有限公司 | Parallel detection method of Ethernet equipment without auto-negotiation signal |
| CN110166316B (en) * | 2019-05-09 | 2022-05-17 | 中国航空工业集团公司西安航空计算技术研究所 | Test method of AFDX (avionics full Duplex switched Ethernet) network selection module |
| CN111770001A (en) * | 2020-06-11 | 2020-10-13 | 中国民航大学 | AFDX (avionics full Duplex switched Ethernet) bus transmission characteristic detection system and method |
| CN112256512B (en) * | 2020-10-27 | 2024-05-07 | 重庆航天工业有限公司 | GLINK bus-based verification and test universal system |
| CN112181850B (en) * | 2020-10-27 | 2023-07-07 | 中航雷华柯林斯(无锡)航空电子设备有限公司 | Comprehensive monitoring system software test platform |
| CN112737872B (en) * | 2020-12-11 | 2022-07-26 | 中国航空工业集团公司西安航空计算技术研究所 | ARINC664P7 end system cross-network testing system and method |
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