Open AccessDesign of onboard data server for the implementation as a part of onboard avionics equipment using concept of integrated modular avionics
Author(s) -
А. Г. Титов,
E S Neretin,
S. O. Dudkin,
P. M. Brusnikin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1353/1/012012
Subject(s) - avionics , integrated modular avionics , computer science , embedded system , modular design , operating system , database server , usb , data processing , crew , database , real time computing , engineering , software , aerospace engineering , aeronautics
Modern onboard equipment (OBE) includes systems that require storage and processing of large amount of information. At the same time real-time access to data is required. On the samples of national aircrafts, information is most often stored in computers, where the main functions are not data storage, but data processing. Most of the computing resources are spent on running applications. This results in slow processing of requests to a database (DB), which in turn affects the speed of systems that need data from the database or that keep records to the database. The article is devoted to the development of Onboard Data server (ODS) using the concept of integrated modular avionics (IMA) for the onboard avionics equipment of medium-range MS-21 aircraft. ODS is a separate data server computing platform, which provides running of several independent functional applications and carrying out interaction with onboard equipment via AFDX, USB, Ethernet, RS-232 interfaces. The article provides the requirements for the Onboard Data Server, software requirements, architecture, calculation of reliability indicators, four modes of operation: start mode, operating mode, extended control mode and technological mode, describes the algorithm of transition between the modes of operation of the ODS. The use of the ODS will allow reducing the load on the computers of the functional applications of the aircraft systems, simplifying the work of the ground crew interacting with the onboard maintenance system and the aircraft crew, which prepares the flight plan using the navigation data processed on the server.