CN102523129B - Universal avionics bus test analysis method and device - Google Patents

Universal avionics bus test analysis method and device Download PDF

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CN102523129B
CN102523129B CN201110398998.1A CN201110398998A CN102523129B CN 102523129 B CN102523129 B CN 102523129B CN 201110398998 A CN201110398998 A CN 201110398998A CN 102523129 B CN102523129 B CN 102523129B
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data
icd
interface control
control document
name
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CN102523129A (en
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时洋洋
张建东
乔莎莎
田海宝
张树勇
吴勇
史国庆
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Abstract

The invention discloses a universal avionics bus test analysis method and a universal avionics bus test analysis device. An interface control document (ICD) management module stores an edited ICD file into a database; an equipment mapping module obtains a mapping relationship between a receiving medium and the ICD file, and stores the mapping relationship in the database; and a data acquisition and analysis module dynamically generates a data block according to the mapping relationship, and finishes management over the data block. By the method and the device, ICDs of various buses can be edited, so that the universality of ICD edition and the reusability of codes are ensured; and the ICD file can be flexibly mapped with the bus data receiving medium, so that the flexibility of software and hardware design is improved.

Description

A kind of general avionics bus test analytical method and device thereof
Technical field
The present invention relates to a kind of avionics bus test analytical method, belong to aviation electronic bus technical field of measurement and test.
Background technology
In the process of the test of airplane avionics system, test parameters need to be according to real-time the showing or be recorded in file of research staff's particular demands, is convenient to like this it in real time or ex-post analysis relevant parameter.Therefore in bus test process, collection and the analysis of relevant parameter are necessary.
Different data transmission bus is as 1553B bus, ARINC429 bus, RS422/485 bus, its ICD(Interface Control Document, interface control document) form of Definition difference, also difference to some extent just of ICD editing interface, as 1553B bus does not have data label parameter, and ARINC429 bus has; In prior art, the data symbol position in ICD file all only has one, can not meet the requirement of all data, because data may have one, two bit sign positions, also may there is no sign bit.In addition, in data transmission procedure, for 1553B bus, each RT(Remote Terminal, remote terminal) corresponding ICD will define, if ICD corresponding to certain RT changed, will change accordingly analytical method before test; For ARINC429 bus, each passage is also wanted a corresponding ICD file, if the ICD file of certain passage has changed, also to do corresponding change to analytical method, for software and hardware, all underactions, certainly will cause the reusability of bus test analytical method poor like this, the mapping that is ICD has changed, and analytical method will be changed.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the invention provides a kind of general aviation bus system method of testing, there is universal performance, for different data transmission bus, the method can both complete the test analysis work of bus.
The technical solution adopted for the present invention to solve the technical problems comprises the following steps:
Step 1, to the 1553B board the present invention relates to, ARINC429 board carry out initialization and certainly detect.
Step 2, the ICD file of dissimilar bus is placed under different files, an ICD file is corresponding to a database file.When user need to open an ICD file when editing, if this ICD file exists, directly open, show the particular content in ICD file simultaneously; If do not exist, set up a new ICD file.Then, user is typing ICD as required, typing content comprises data label, data name, data unit, resolution, MSB(Most Significant Bit, highest significant position), LSB(Least Significant Bit, least significant bit), maximum, minimum value, data symbol position 1 and data symbol position 2.The database table of corresponding database file should comprise following attribute: data label, data name, data unit, resolution, MSB, LSB, maximum, minimum value, data symbol position 1, data symbol position 2.
Step 3, device map management.
For 1553B bus, first search for all already present ICD files, and show each ICD filename, then as required for different selecting different ICD files, and this mapping relations be recorded in 1553B devices mirror data storehouse for No. RT, sub-No. RT.The attribute that table in database should comprise is: No. RT, sub-No. RT, ICD filename.
For ARINC429 bus, first search for all already present ICD files, and show each ICD filename, the ICD file that then different channel selecting is different, and corresponding mapping relations are recorded in ARINC429 devices mirror data storehouse.The attribute that table in database should comprise is: channel number, ICD filename.
Step 4, data acquisition, concrete steps are as follows:
First, before real-time data collection, for ARINC429 bus, user need to arrange hardware relevant parameter, these parameters comprise tunnel ends slogan, baud rate, mode of operation, verification, reception data field, after having arranged, above-mentioned parameter are stored into database.Therefore the attribute of showing in capture setting database should comprise tunnel ends slogan, baud rate, mode of operation, verification, reception data field 1, receive data field 2.
Secondly, read bus ICD mapping database, determine corresponding data block name, and then read and the ICD database of hardware context, determine data name corresponding under each data block, then hierarchical relationship is shown with the form of tree, data block name is as the upper level of data name.
Again, log-on data gathers, and shows the data that collect with two lists, and list 1 is for showing the hexadecimal of data block, list 2, for showing concrete physical quantity, comprises data name, data block title, magnitude of physical quantity, unit, resolution, maximum, minimum value.
Finally, when image data, the data that collect are deposited in real time.In order to guarantee not obliterated data, program adopts Memory Mapping File and its technology.For the ease of the data processing in user's later stage, data are deposited take data block as base unit, i.e. a corresponding file of data block, and also deposit data file adopts unified name form.
Step 5, data analysis.Concrete steps are as follows:
First, read bus ICD mapping database, determine corresponding data block name, and then read and the ICD database of hardware context, determine data name corresponding under each data block, then hierarchical relationship is shown with the form of tree, data block name is as the upper level of data name.
Secondly, show data with data list form and graph curve form, wherein data list meeting demonstrates numerical value after the decoding of above-mentioned data name, and graph curve form can demonstrate the curvilinear motion situation of the above-mentioned data in the above-mentioned time period, if necessary, the method can demonstrate the coordinate in a certain moment point on curve.
The present invention also provides a kind of device of realizing said method, comprises System self-test survey module, ICD administration module, device map module, data acquisition module, data analysis module.In ICD administration module, editor's ICD file is stored in database, (1553B bus is corresponding to RT to complete receiver media in device map module, ARINC429 is corresponding to passage) with the mapping relations of ICD file, and mapping relations are stored in database, then in data acquisition module and data analysis module according to the dynamic generated data piece of above-mentioned mapping relations, complete the management work of data block.
Above-mentioned initialization and the self-checking function that has been used for hardware from detection module.
Above-mentioned ICD administration module has been used for the edit-modify function of ICD file.
Above-mentioned device map module has been used for the mapping relations of ICD file and receiver media.
Above-mentioned data acquisition module has been used for the Real-time Collection of bus data, real-time demonstration, real-time storage.
Above-mentioned data analysis module has been used for the playback of bus data, for research work afterwards provides foundation.
Advantage of the present invention is: in ICD editing process, can edit the ICD of various buses (comprising 1553B bus, ARINC429 bus, RS422/485 bus etc.), realize versatility that ICD edits and the reusability of code.Another one advantage of the present invention is that ICD file and bus data receiver media can shine upon flexibly, increase like this flexibility of design of hardware and software, without changing software and hardware, only need to revise ICD mapping relations, can realize the data that different passages or RT receive different IC D form, the method can generate the data block of corresponding form automatically simultaneously.
Accompanying drawing explanation
Fig. 1 is test system structure schematic diagram;
Fig. 2 is method of testing schematic flow sheet.
Embodiment
Bus testing system method of the present invention comprises System self-test survey module, ICD administration module, device map module, data acquisition module, data analysis module.In ICD administration module, editor's ICD file is stored in database, (1553B bus is corresponding to RT to complete receiver media in device map module, ARINC429 is corresponding to passage) with the mapping relations of ICD file, and mapping relations are stored in database, then in data acquisition and data analysis module according to the dynamic generated data piece of above-mentioned mapping relations, complete the management work of data block.
Above-mentioned initialization and the self-checking function that has been used for hardware from detection module.
Above-mentioned ICD administration module has been used for the edit-modify function of ICD file.
Above-mentioned device map module has been used for the mapping relations of ICD file and receiver media.
Above-mentioned data acquisition module has been used for the Real-time Collection of bus data, real-time demonstration, real-time storage.
Above-mentioned data analysis module has been used for the playback of bus data, for research work afterwards provides foundation.
The present invention solves the bus test scheme that its technical problem adopts and comprises the following steps:
Step 1, System self-test are surveyed.Comprise this device related 1553B board, ARINC429 board etc. are carried out initialization and certainly detected.
Step 2, ICD Document Editing.For the ease of the management of ICD file, ICD file is unified under the file that is placed on appointment, and the ICD file of dissimilar bus is placed under different files.In this program, ICD file is with the storage of database form, and an ICD file is corresponding to a database file.The management process of ICD file is as follows:
First, user need to open an ICD file for editor in program interface, if this ICD file exists, program is directly opened, and the particular content in ICD file is presented in program interface simultaneously; If do not exist, new ICD file of program Dynamic Establishing, program interface content is empty simultaneously.
Secondly, the editor who realizes ICD file, user is typing ICD as required, and content comprises data label, data name, data unit, resolution, MSB, LSB, maximum, minimum value, data symbol position 1, data symbol position 2 etc.When database design, database table should comprise following attribute: data label, data name, data unit, resolution, MSB, LSB, maximum, minimum value, data symbol position 1, data symbol position 2.Wherein data symbol position should comprise 3 kinds of situations: one, two, without sign bit.The present invention agreement: when data symbol position is one, data symbol position 1 is corresponding sign bit, and data symbol position 2 is set to-1; When data symbol position is two, data symbol position 1 and 2 is corresponding sign bit; Data are countless during according to sign bit, and data symbol position 1 and 2 is all set to-1.In addition, for 1553B bus, in its ICD form, there is no this concept of data label, the present invention agreement: in the ICD file of 1553B bus, data label is set to-1.Had above agreement, user just can increase ICD file, modification and deletion action, and the ICD file content after upgrading is presented in program interface in real time.
Step 3, device map management.The mapping mode that different bus selection is different, for 1553B bus, user selects corresponding ICD file according to RT address, RT subaddressing; For ARINC429 bus, user selects corresponding ICD file according to channel number.Therefore, the program interface of this step should be in two kinds of situation: the interface of the interface of 1553B type and ARINC429 type, and the database of certainly storing corresponding mapping relations also will be divided into two classes, is specifically described below:
For 1553B bus, first program will search for all already present ICD files, and each ICD filename is shown in program interface, then as required for different selecting different ICD files, and this mapping relations be recorded in 1553B devices mirror data storehouse for No. RT, sub-No. RT.The attribute that table in database should comprise is: No. RT, sub-No. RT, ICD filename.
For ARINC429 bus, program also will be searched for all already present ICD files, and each ICD filename is shown in program interface, the then different different ICD file of channel selecting, and corresponding mapping relations are recorded in ARINC429 devices mirror data storehouse.The attribute that table in database should comprise is: channel number, ICD filename.
ICD file and equipment can be associated by above-mentioned two kinds of approach, and be convenient to automatically generated data piece in subsequent operation.
Step 4, data acquisition.Concrete steps are as follows:
First, before real-time data collection, for ARINC429 bus, user need to arrange hardware relevant parameter, these parameters comprise tunnel ends slogan, baud rate, mode of operation, verification, reception data field etc., after setting completes, above-mentioned parameter need to be stored into database, so that routine call completes the crosslinked of software and hardware.Therefore the attribute of showing in capture setting database should comprise tunnel ends slogan, baud rate, mode of operation, verification, reception data field 1, receive data field 2.As follows for above-mentioned attribute specification: baud rate be represent 100KHz at 0 o'clock, be represent 96KHz at 1 o'clock, be to represent 48KHz at 2 o'clock, mode of operation be within 0 o'clock, represent System self-test survey pattern, be to represent normal mode of operation at 1 o'clock, when check digit 0, represent odd, be represent even parity check at 1 o'clock, be to represent no parity check at 2 o'clock.
Secondly, first program reads bus ICD mapping database, determine corresponding data block name, and then read and the ICD database of hardware context, determine data name corresponding under each data block, then hierarchical relationship is shown in program interface using the form (data block name is as the upper level of data name) of tree.Program, by above-mentioned approach, can realize the dynamic generation of data block.
Again, user setup data capture program, program can show the data that collect with two lists, and list 1 is for showing the hexadecimal of data block, and list 2 is for showing concrete physical quantity.User is if while observing the state of a certain data block, only need click this data block, the hexadecimal form of this data block that at this moment program can collect with the form display system of list 1.If user need to observe the state of some data under this data block, only need to double-click corresponding data name, now program can show the content that it is concrete with another list 2 forms, comprises data name, data block title, magnitude of physical quantity, unit, resolution, maximum, minimum value etc.Further, if user will observe the real-time change situation of some data intuitively, only need to double-click the concrete data strip in list 2, program will show with the form of graph curve the real-time change curve of these data.
Finally, when system acquisition data, program can be deposited the data that collect in real time.In order to guarantee not obliterated data, program adopts Memory Mapping File and its technology.For the ease of the data processing in user's later stage, data are deposited take data block as base unit, i.e. a corresponding file of data block, and deposit data file adopts unified name form, as data block title+current time in system.
Step 5, data analysis.Concrete steps are as follows:
First, first program reads bus ICD mapping database, determine corresponding data block name, and then read and the ICD database of hardware context, determine data name corresponding under each data block, then using the form (data block name is as the upper level of data name) of tree, ICD hierarchical relationship is shown in program interface.Program, by above-mentioned approach, can realize the dynamic generation of data block.
Secondly, user is if observe some data under a certain data block, can this data block of right click, and program will eject the saving file name that data block is relevant therewith, and user only need load corresponding file as required in program.Then, the interested data name of user click, program can show this data with two kinds of forms: data list form and graph curve form.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment of the method:
Suppose that test macro is 1553B bus system, ICD file comprises that an ADC_ICD(is comprising height, latitude, three parameters of longitude), the data that system need to gather are No. 1 RTXia subaddressing 1 and subaddressing 2.
Fig. 1 is test system structure schematic diagram, and whole test macro comprises: from detection module, ICD administration module, device map module, data acquisition module, data analysis module.
The first step: System self-test is surveyed.Complete initialization and the self-checking function of software and hardware.
Second step: ICD management.Select different ICD edit formats according to different bus systems.Editing data title, data unit, resolution, MSB, LSB, maximum, minimum value, data symbol position (comprise sign bit 1, sign bit 2, in the time only having a bit sign position, sign bit 2 is set to-1, and while thering is no sign bit, sign bit 1,2 is all set to-1).Complete editing, be saved in database file ADC_ICD.
The 3rd step: device map management.If gather the data of No. 1 RTXia subaddressing 2, only ADC_ICD need be associated with it, and be saved in mapping (enum) data library file.
The 4th step: real time data acquisition.Software meeting automatically generated data piece, data block name is called ADC, and data block is made up of the design parameter under corresponding ICD file, is height, latitude, precision in this example.Image data, only needs to start bus system, and now program can show the hexadecimal data of the data block of selecting in real time, and shows the physical quantity of the design parameter that user selects simultaneously, as height, and can show its real-time change curve.When image data, system can be deposited data in real time, and saving file name form is: data block title+current time in system, and if filename can be ADC20111031173612.
The 5th step: data analysis.Software meeting automatically generated data piece, concrete production form is as the 4th step.In this example, if data file ADC20111031173612 is carried out to data reproduction, can be by its loader.The playback system of data has two kinds: data list mode and graph curve display mode.

Claims (2)

1. a general avionics bus test analytical method, is characterized in that comprising the steps:
Step 1, to 1553B board, ARINC429 board carry out initialization and certainly detect;
Step 2, the ICD interface control document of dissimilar bus is placed under different files, an ICD interface control document is corresponding to a database file; When user need to open an ICD interface control document when editing, if this ICD interface control document exists, directly open, show the particular content in ICD interface control document simultaneously; If do not exist, set up a new ICD interface control document; Then, typing ICD interface control document, typing content comprises data label, data name, data unit, resolution, MSB, LSB, maximum, minimum value, data symbol position 1 and data symbol position 2; The database table of corresponding database file should comprise data label, data name, data unit, resolution, MSB, LSB, maximum, minimum value, data symbol position 1, data symbol position 2;
Step 3, device map management;
For 1553B bus, first search for all already present ICD interface control document, and show each ICD interface control document name, then as required for different selecting different ICD interface control document, and this mapping relations be recorded in 1553B devices mirror data storehouse for No. RT, sub-No. RT; The attribute that table in database should comprise is: No. RT, sub-No. RT, ICD interface control document name;
For ARINC429 bus, first search for all already present ICD interface control document, and show each ICD interface control document name, the ICD interface control document that then different channel selecting is different, and corresponding mapping relations are recorded in ARINC429 devices mirror data storehouse; The attribute that table in database should comprise is: channel number, ICD interface control document name;
Step 4, data acquisition, concrete steps are as follows:
First, before real-time data collection, for ARINC429 bus, hardware relevant parameter is arranged, these parameters comprise tunnel ends slogan, baud rate, mode of operation, verification, reception data field, after having arranged, above-mentioned parameter are stored into database;
Secondly, read bus ICD interface control document mapping database, determine corresponding data block name, and then read and the ICD interface control document database of hardware context, determine data name corresponding under each data block, then hierarchical relationship is shown with the form of tree, data block name is as the upper level of data name;
Again, log-on data gathers, and shows the data that collect with two lists, and list 1 is for showing the hexadecimal of data block, list 2, for showing concrete physical quantity, comprises data name, data block title, magnitude of physical quantity, unit, resolution, maximum, minimum value;
Finally, when image data, the data that collect are deposited in real time;
Step 5, data analysis, concrete steps are as follows:
First, read bus ICD interface control document mapping database, determine corresponding data block name, and then read and the ICD interface control document database of hardware context, determine data name corresponding under each data block, then hierarchical relationship is shown with the form of tree, data block name is as the upper level of data name;
Secondly, show data with data list form and graph curve form, wherein data list demonstrates numerical value after the decoding of above-mentioned data name, and graph curve form demonstrates the curvilinear motion situation of above-mentioned data.
2. realize the device of general avionics bus test analytical method claimed in claim 1 for one kind, comprise from detection module, ICD interface control document administration module, device map module, data acquisition module, data analysis module, it is characterized in that: in ICD interface control document administration module, editor's ICD interface control document is stored in database, complete the mapping relations of receiver media and ICD interface control document in device map module, and mapping relations are stored in database, then in data acquisition module and data analysis module according to the dynamic generated data piece of above-mentioned mapping relations, complete the management work of data block, described initialization and the self-checking function that has been used for hardware from detection module.
CN201110398998.1A 2011-12-05 2011-12-05 Universal avionics bus test analysis method and device Expired - Fee Related CN102523129B (en)

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