CN114884928A - EAFR data downloading processing method and system of in-process computer type C919 - Google Patents
EAFR data downloading processing method and system of in-process computer type C919 Download PDFInfo
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Abstract
The invention discloses an EAFR data downloading processing method and system of an on-the-go model C919, and the system comprises a data acquisition component, an EAFR recorder, an EAFR data downloading device, an AirFASE software platform and CEFA simulation software, wherein the data acquisition component acquires AFDX frame structure data through an ARINC664 data bus based on an AFDX aviation data network, a recorder electronic recording file is arranged in the EAFR recorder, and the EAFR recorder stores the AFDX frame structure data acquired by the data acquisition component as EAFR frame structure data according to the recorder electronic recording file; and the AirFASE software platform decodes the EAFR data, and the CEFA simulation software carries out flight data simulation manufacture. The EAFR data downloading method and the EAFR data downloading device construct the data communication Ethernet by taking the EAFR recorder as a server and taking the EAFR data downloading device as a client so as to facilitate EAFR data downloading, solve the EAFR data downloading problem of the research model C919 and provide a complete solution of data downloading and simulation manufacturing.
Description
Technical Field
The invention relates to the field of civil aviation flight data, in particular to an EAFR data downloading processing method and system for an in-process aircraft type C919.
Background
Civil aviation regulations of various countries in the world require that passenger or freight aircrafts, helicopters and the like are required to be provided with flight data recorders forcibly; the flight data recorder is used as an airborne data recording device and is used for recording various data of the flight state, unit operation, system and equipment operation, external environment and the like of the aircraft, so that the reason investigation of flight accidents, the data analysis of unsafe events and cases are realized, and detailed data support can be provided for the improvement and maintenance of aircraft design or the improvement of a training scheme. The traditional airplanes (A318/319/320321, B737/747/757/767/777, etc.) are based on ARINC 429 data bus for information transmission, and the new generation airplanes (C919, A380, A350, B787, etc.) use advanced Avionics Full Duplex Switched Ethernet (AFDX for short) for information transmission based on ARINC664 data bus. For the C919 aircraft in research, in order to assist the future high availability of the EAFR as an airborne recording device of an airline company and match with the requirements of accident investigation and event analysis of the civil aviation bureau or the airline company, because no commercial EAFR data downloading cable and device exists at present, the EAFR data recording format of the C919 aircraft is different from that of the models of B787, a380 and the like, and the C919 aircraft has unique data format and characteristics, the development and the configuration of the corresponding EAFR data downloading device and downloading processing method are needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an EAFR data downloading processing method and system of the under-study model C919, which solve the problem of EAFR data downloading of the under-study model C919, construct a data communication Ethernet by taking an EAFR recorder as a server and an EAFR data downloading device as a client so as to facilitate EAFR data downloading, provide a data downloading solution for subsequent C919 operation, and realize data decoding and flight simulation manufacturing.
The purpose of the invention is realized by the following technical scheme:
an EAFR data downloading processing method of an in-research model C919 comprises the following steps:
A. the data acquisition component transmits acquired AFDX frame structure data to an EAFR recorder through an ARINC664 data bus based on an AFDX aviation data network, a recorder electronic recording file is arranged in the EAFR recorder, the recorder electronic recording file has the storage rule and the sequence of an EAFR frame structure and is stored according to an XML file format, and the EAFR recorder stores the AFDX frame structure data into EAFR frame structure data according to the recorder electronic recording file;
B. establishing a data communication Ethernet between the EAFR data downloading device and the EAFR recorder through an RJ-45 connector by taking a computer as the EAFR data downloading device;
C. the data communication Ethernet takes an EAFR recorder as a server and an EAFR data downloading device as a client, an OGP WEB server is arranged in the EAFR recorder, and documents in an HTML format based on an OGP user interface are downloaded and stored by the EAFR data downloading device through a WEB page.
In order to better realize the EAFR data downloading processing method of the invention, the invention also comprises the following method:
D. and decoding the EAFR data downloaded by the EAFR data downloading device on an AirFASE software platform, constructing a parameter profile required by a simulation model drive according to the requirements of a parameter specification file of CEFA simulation software on the decoded data, and deriving a corresponding CSV parameter engineering value file, wherein the CEFA simulation software completes flight data simulation manufacture based on the CSV parameter engineering value file.
The EAFR data downloading processing method comprises the following preferred technical scheme in the step A: the EAFR recorder is configured with 115V, 400Hz AC or 28 + -4V DC powered drive.
The EAFR data downloading processing method comprises the following preferred technical scheme in the step B: the computer is a notebook computer, the EAFR data downloading device is configured with a Microsoft Windows operating system, and meanwhile, the EAFR data downloading device is configured with an IE browser with the version more than 6.0.
The EAFR data downloading processing method comprises the following preferred technical scheme in the step C: in the data communication Ethernet, the EAFR data downloading device utilizes an IE browser to communicate with an OGP web server of the EAFR recorder.
An EAFR data downloading processing system of an in-process grinder type C919 comprises a data acquisition component, an EAFR recorder and an EAFR data downloading device which are sequentially connected, wherein the data acquisition component acquires AFDX frame structure data through an ARINC664 data bus based on an AFDX aviation data network, a recorder electronic recording file is arranged in the EAFR recorder, the EAFR recorder stores the AFDX frame structure data acquired by the data acquisition component into EAFR frame structure data according to the recorder electronic recording file, and an OGP web server is arranged in the EAFR recorder and is in communication connection with the EAFR data downloading device.
Preferably, the EAFR data download processing system of the present invention further includes an airfast ae software platform and CEFA simulation software, the airfast ae software platform is connected to the EAFR data download device, the airfast ae software platform is used for decoding the EAFR data downloaded by the EAFR data download device, and the CEFA simulation software is used for performing flight data simulation.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention solves the EAFR data downloading problem of the research model C919, constructs a data communication Ethernet by taking an EAFR recorder as a server and taking an EAFR data downloading device as a client so as to facilitate EAFR data downloading, provides a data downloading solution for subsequent C919 operation, and further can realize data decoding and flight simulation manufacturing.
(2) The EAFR recorder is internally provided with the recorder electronic recording file for data acquisition and storage standardization, so that the problems of data matching, data fusion and the like can be effectively solved, and the later data decoding efficiency is improved.
Drawings
FIG. 1 is a schematic block diagram of an EAFR data download processing system of the present invention;
fig. 2 is a schematic flowchart illustrating an EAFR data downloading processing method according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of three parts of a FRED file illustrated in a second embodiment of the present invention;
fig. 4 is a simulation diagram of an airplane manufactured in an example of the second embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example one
As shown in fig. 1, a method for processing EAFR data download in a model C919 includes the following steps:
A. the data acquisition component transmits acquired AFDX frame structure data to an EAFR Recorder through an ARINC664 data bus based on an AFDX aviation data network, the EAFR Recorder (Enhanced aircraft Flight Recorder, EAFR for short) of the embodiment selects an Enhanced air Flight Recorder produced by General Electric Company (GE for short), a Recorder Electronic recording file (Flight Recorder Electronic recording for short) is arranged in the EAFR Recorder, the Recorder Electronic recording file of the embodiment is written according to ARINC 647A specification, an XML file format is adopted, the Recorder Electronic recording file is also called an FRED file, the Recorder Electronic recording file has the storage rules and the sequence of the EAFR frame structure and is stored according to the XML file format, the Recorder Electronic recording file is a descriptive file of the storage rules and the sequence, and the preferred data acquisition component is communicated with the FR Recorder and can record the data according to the data content and the data rules of the Recorder Electronic recording file of the embodiment And (5) acquiring data (if the original data acquired by the data acquisition component is inconsistent with the FRED file, the EAFR recorder adjusts the data frame number and the data frame recording parameter position according to the FRED file so as to facilitate the later parameter decoding processing). The EAFR recorder stores AFDX frame structure data as EAFR frame structure data according to an electronic recording file of the recorder, and stores the EAFR frame structure data according to the international universal ARINC 767 standard requirement and ensures the post-decoding processing; preferably, the EAFR recorder is configured with 115V, 400Hz AC or 28 + -4V DC power supply, and the EAFR recorder of the present embodiment is configured with 28 + -4V DC and 1A DC power supply.
B. Establishing a data communication Ethernet between the EAFR data downloading device and the EAFR recorder through an RJ-45 connector by taking a computer as the EAFR data downloading device; the computer is preferably a notebook computer, the EAFR data downloading device is configured with a Microsoft Windows operating system, and the EAFR data downloading device is configured with an IE browser with more than 6.0 version.
C. The data communication Ethernet takes an EAFR recorder as a server and an EAFR data downloading device as a client, an OGP WEB server (the OGP WEB server can be called as a WEB server for short) is arranged in the EAFR recorder, and documents in an HTML format based on an OGP user interface are downloaded and stored by the EAFR data downloading device through a WEB page by the OGP WEB server. Preferably, in the data communication ethernet network, the EAFR data downloading device communicates with the OGP web server of the EAFR recorder using the IE browser. The EAFR recorder of this embodiment includes resident software called ground operating program (OGP), which includes downloading, uploading, and built-in test (BIT), and the OGP provides a visual data downloading web interface for the user to complete EAFR data downloading through a web browser of the EAFR data downloading device (in this embodiment, a notebook computer). An implementation of the OGP WEB server WEB-based technology for handling client-server is that when an EAFR data download device (in this embodiment, a laptop computer) is connected to an EAFR recorder through an RJ-45 connector, an operational data communication ethernet network is established with the EAFR data download device as the client and the EAFR recorder as the server. After the EAFR data downloading device (in this embodiment, a notebook computer) is connected, a user opens an IE browser, the operation directly connects the notebook computer to an HTTP server which runs OGP from the interior of the EAFR, an OGP user interface is implemented by HTML documents, the OGP web server provides the user with a web page containing various options, the user is allowed to download the stored data of the EAFR, and the notebook computer communicates with the OGP by using the IE browser and an Active control of a Windows operating system.
Another preferred embodiment of the present invention, in addition to comprising the above steps a to C, comprises the following method:
D. the method comprises the steps of decoding EAFR data downloaded by an EAFR data downloading device on an AirFASE software platform (AirFASE is short for Airraft Flight analysis and Safety Explorer and is a tool software developed by Teledyne controls company in the United states), then constructing parameter profiles required by simulation model driving according to the requirements of parameter specification files of CEFA simulation software (developed by CEFA Aviation company in France) and deriving corresponding CSV parameter engineering value files, wherein the CEFA simulation software completes Flight data simulation manufacturing based on the CSV parameter engineering value files.
An EAFR data downloading processing system of an in-process grinder type C919 comprises a data acquisition component, an EAFR recorder, an EAFR data downloading device, an AirFASE software platform and CEFA simulation software which are sequentially connected, wherein the data acquisition component acquires AFDX frame structure data through an ARINC664 data bus based on an AFDX aviation data network, a recorder electronic recording file is arranged in the EAFR recorder, the EAFR recorder stores the AFDX frame structure data acquired by the data acquisition component into EAFR frame structure data according to the recorder electronic recording file, and an OGP web server is arranged in the EAFR recorder and is in communication connection with the EAFR data downloading device. The AirFASE software platform is connected with the EAFR data downloading device, the AirFASE software platform is used for decoding the EAFR data downloaded by the EAFR data downloading device, and the CEFA simulation software is used for performing flight data simulation.
Example two
As shown in fig. 2 to 4, an EAFR data download processing method of the research machine C919 includes the following steps:
A. the data acquisition component transmits acquired AFDX frame structure data to an EAFR Recorder through an ARINC664 data bus based on an AFDX aviation data network, a Recorder Electronic recording file (FRED for short) is arranged in the EAFR Recorder, the Recorder Electronic recording file is compiled into an XML file format according to ARINC 647A standard requirements, the Recorder Electronic recording file is also called the FRED file, has the storage rules and the sequence of the EAFR frame structure and is stored according to the XML file format, and the Recorder Electronic recording file is a descriptive file of the storage rules and the sequence. The writing specification of the FRED file according to the ARINC 647A specification mainly comprises the following three parts:
a) header file: the first section of the FRED file has a fixed format; mainly representing the configuration information of the FRED file, such as the FRED version, the applicable model, the machine number, the EAFR part number, the acquisition component part number and the like;
b) frame definition: the second section of FRED, has specific writing requirements; defining EAFR frame, such as frame name, frame list, frame type, frame ID, etc.;
c) parameter definition: the second section of FRED, has specific writing requirements; the intra-frame parameters are mainly defined, such as parameter name, short name, parameter bit length, conversion coefficient, etc. As shown in fig. 3, the present embodiment exemplifies three parts of a FRED file, respectively.
The EAFR recorder stores AFDX frame structure data as EAFR frame structure data according to an electronic recording file of the recorder, and stores the EAFR frame structure data according to the international universal ARINC 767 standard requirement and ensures the post-decoding processing; preferably, the EAFR recorder is configured with 115V, 400Hz AC or 28 + -4V DC power supply, and the EAFR recorder of the present embodiment is configured with 28 + -4V DC and 1A DC power supply.
In addition, in order to ensure highly accurate matching and later decoding of data, the EAFR recorder is configured to actively correct and adjust the data frame ID number and the data frame recording parameter position sequence according to the FRED format file; and if the original data acquired by the data acquisition assembly is inconsistent with the FRED format file, the EAFR recorder completes the proofreading and adjustment processing of the data frame ID number and the data frame recording parameter position sequence of the EAFR original data based on the recorder electronic recording file.
B. A notebook computer is used as an EAFR data downloading device, and a data communication Ethernet between the EAFR data downloading device and an EAFR recorder is established through an RJ-45 connector; the EAFR data downloading device is configured with a Microsoft Windows operating system, and meanwhile, the EAFR data downloading device is configured with an IE browser with the version 6.0 or more.
C. The data communication Ethernet takes an EAFR recorder as a server and an EAFR data downloading device as a client, an OGP WEB server (the OGP WEB server can be called as a WEB server for short) is arranged in the EAFR recorder, and documents in an HTML format based on an OGP user interface are downloaded and stored by the EAFR data downloading device through a WEB page by the OGP WEB server. Preferably, in the data communication ethernet network, the EAFR data downloading device communicates with the OGP web server of the EAFR recorder using the IE browser. After the EAFR data downloading device is connected to the data communication Ethernet, the EAFR data downloading device uses an IE browser and an Active control of a Windows operating system to carry out OGP communication with an OGP WEB server in the EAFR recorder, and the OGP WEB server gives users through a WEB page containing various options and allows the stored data of the EAFR to be downloaded.
D. The EAFR data downloaded by the EAFR data downloading device is decoded on an AirFASE software platform (the AirFASE is short for air Flight analysis and Safety Explorer and is a piece of tool software developed by Teledyne controls company in the United states) (the AirFASE software platform completes decoding processing according to decoding rules), then, the decoded data is used for constructing a simulation model (the CEFA simulation software has a simulation model corresponding to the airplane, and the parameter profile corresponds to a data set of the simulation model) according to the requirements of a parameter specification file (generally comprising a parameter list, and parameter names, sequencing, engineering value range and switching value meaning are defined in the parameter list) of CEFA simulation software (developed by CEFA Aviation company, France) so as to drive a required parameter profile and derive a corresponding CSV parameter engineering value file, and the CEFA simulation software completes flight data simulation based on the CSV parameter engineering value file (as shown in FIG. 4, the embodiment provides a simulation diagram example manufactured for a C919 airplane).
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. An EAFR data downloading processing method of an in-process computer type C919 is characterized by comprising the following steps: the method comprises the following steps:
A. the data acquisition component transmits acquired AFDX frame structure data to an EAFR recorder through an ARINC664 data bus based on an AFDX aviation data network, a recorder electronic recording file is arranged in the EAFR recorder, the recorder electronic recording file has the storage rule and the sequence of an EAFR frame structure and is stored according to an XML file format, and the EAFR recorder stores the AFDX frame structure data into EAFR frame structure data according to the recorder electronic recording file;
B. establishing a data communication Ethernet between the EAFR data downloading device and the EAFR recorder through an RJ-45 connector by taking a computer as the EAFR data downloading device;
C. the data communication Ethernet takes an EAFR recorder as a server and an EAFR data downloading device as a client, an OGP WEB server is arranged in the EAFR recorder, and documents in an HTML format based on an OGP user interface are downloaded and stored by the EAFR data downloading device through a WEB page.
2. The EAFR data download process of in-research model C919, according to claim 1, characterized by: the method also comprises the following steps:
D. and decoding the EAFR data downloaded by the EAFR data downloading device on an AirFASE software platform, constructing a parameter profile required by a simulation model drive according to the requirements of a parameter specification file of CEFA simulation software on the decoded data, and deriving a corresponding CSV parameter engineering value file, wherein the CEFA simulation software completes flight data simulation manufacture based on the CSV parameter engineering value file.
3. The EAFR data download process of in-research model C919, according to claim 1 or 2, characterized by: in the step A, the EAFR recorder is configured with 115V, 400HZ alternating current or 28 +/-4V direct current power supply driving.
4. The EAFR data download process of in-research model C919, according to claim 3, characterized by: in step B, the computer is a notebook computer, the EAFR data downloading device is configured with a Microsoft Windows operating system, and meanwhile, the EAFR data downloading device is configured with an IE browser with the version more than 6.0.
5. The EAFR data download process of in-research model C919, according to claim 4, characterized by: in step C, in the data communication Ethernet, the EAFR data downloading device utilizes the IE browser to communicate with the OGP web server of the EAFR recorder.
6. An EAFR data download processing system of an in-research model C919, characterized in that: the device comprises a data acquisition component, an EAFR recorder and an EAFR data downloading device which are sequentially connected, wherein the data acquisition component acquires AFDX frame structure data through an ARINC664 data bus based on an AFDX aviation data network, a recorder electronic recording file is arranged in the EAFR recorder, the EAFR recorder stores the AFDX frame structure data acquired by the data acquisition component into EAFR frame structure data according to the recorder electronic recording file, and an OGP web server is arranged in the EAFR recorder and is in communication connection with the EAFR data downloading device.
7. The EAFR data download processing method of in-research model C919 according to claim 6, characterized by: the aircraft flight data simulation system further comprises an AirFASE software platform and CEFA simulation software, wherein the AirFASE software platform is connected with the EAFR data downloading device, the AirFASE software platform is used for decoding the EAFR data downloaded by the EAFR data downloading device, and the CEFA simulation software is used for flight data simulation production.
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