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The Research on Validation and Verification Method of Configuration Data for IMA Resources Allocation

CETC Avionics Co., Ltd.-Yan-xiao Li
UESTC; CETC Avionics Co., Ltd.-Yunsheng Wang
Published 2019-09-16 by SAE International in United States
Integrated Modular Avionics (IMA) system comprises IMA platform and hosted applications. The IMA platform provides the hosted applications with shared resources, e.g. computing, memory, communication, health monitoring resources. As a bridge between them, the IMA configuration data specifies how these shared resources are allocated to each hosted application. The IMA configuration data, which is different from real hardware and software code, should be validated and verified as an important portion of IMA system. After a brief introduction of IMA system, development processes, and general means of compliance for certification, this paper proposed an Architecture Analysis and Design Language (AADL) model of IMA configuration based on a case study of airborne datalink system. Based on the model, the IMA configuration data is abstracted and categorized into several types, with the correspondent means of compliance identified for each type. Furthermore, the associated roles and responsibilities are discussed for IMA configuration data validation and verification. The IMA configuration data specific means of compliance, the validation and verification processes, the roles and responsibilities, together form a method for validating…
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The Right Stuff for Aging Electronics/Intermittence/No Fault Found

Universal Synaptics-Hector I. Knudsen
Published 2019-09-16 by SAE International in United States
For those in the avionics repair and maintenance business, the acronyms NFF (No Fault Found), NTF (No Trouble Found), and CND (Cannot Duplicate) are, unfortunately, all too familiar terms. After several decades of frustration with this illusive phenomenon, it continues to consume an enormous amount of test and diagnostic effort and is the source of considerable cost and discomfort within the multi-level avionics repair model.There are undoubtedly many causes of NFF and all of them should be addressed. The question is: Where do you start and which solution will be the most beneficial?Our particular efforts have focused on the literal or statistical analysis of NFF, recognizing that if the system’s MTBF (Mean Time Between Failure) has decreased, or if the device's NFF rate has increased with age and deterioration, a physical fault is most likely present. However, if it isn’t found during conventional testing then it probably only fails intermittently. Similarly, having an intermittent failure mode, it in all probability cannot be detected or diagnosed at testing time because of known and demonstrated limitations in…
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Data Recorder and Mission Computer

  • Magazine Article
  • TBMG-35112
Published 2019-09-01 by Tech Briefs Media Group in United States

Curtiss-Wright Corporation Ashburn, VA 703-779-7800

Understanding Fiber Optic Transceiver Design and Test Rules

  • Magazine Article
  • TBMG-35119
Published 2019-09-01 by Tech Briefs Media Group in United States

The design of avionics systems must balance several factors. First, engineers want to increase the performance of the systems installed in aircraft or spacecraft. Second, they want to reduce the size and weight of the equipment that must be carried. Third, they want to maximize the safety of the in-flight systems and maintain communication between the aircraft or spacecraft and other flight vessels and the command center, regardless of the circumstances.

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Understanding Fiber Optic Transceiver Design and Test Rules

Aerospace & Defense Technology: September 2019

  • Magazine Article
  • 19AERP09_03
Published 2019-09-01 by SAE International in United States

The design of avionics systems must balance several factors. First, engineers want to increase the performance of the systems installed in aircraft or spacecraft. Second, they want to reduce the size and weight of the equipment that must be carried. Third, they want to maximize the safety of the in-flight systems and maintain communication between the aircraft or spacecraft and other flight vessels and the command center, regardless of the circumstances.

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Flight Computer

  • Magazine Article
  • TBMG-35114
Published 2019-09-01 by Tech Briefs Media Group in United States

Abaco Systems Huntsville, AL 866-652-2226

How Miniaturized Distributed Modular Architecture Advances Avionics Design

  • Magazine Article
  • TBMG-34865
Published 2019-08-01 by Tech Briefs Media Group in United States

Most of today’s collision-avoidance, in-flight-entertainment (IFE), air-to-ground-communications, and other avionics systems employ electronics packaging based on the Aeronautics Radio INC (ARINC) 600 standard. Compared to the older ARINC 404 standard dating from the 1970s that defined “black box” enclosures and racks within aircraft, ARINC 600 specified a Modular Concept Unit (MCU) – the basic building block module for avionics. An ARINC 600 metal enclosure can hold up to 12 MCUs, allowing a lot of computing power to be placed in a centralized “box.” By making it possible to run numerous applications over a real-time network, ARINC 600 enabled “next generation” integrated modular avionics (IMA).

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How Miniaturized Distributed Modular Architecture Advances Avionics Design

Aerospace & Defense Technology: August 2019

  • Magazine Article
  • 19AERP08_01
Published 2019-08-01 by SAE International in United States

Most of today's collision-avoidance, in-flight-entertainment (IFE), air-to-ground-communications, and other avionics systems employ electronics packaging based on the Aeronautics Radio INC (ARINC) 600 standard. Compared to the older ARINC 404 standard dating from the 1970s that defined “black box” enclosures and racks within aircraft, ARINC 600 specified a Modular Concept Unit (MCU) - the basic building block module for avionics. An ARINC 600 metal enclosure can hold up to 12 MCUs, allowing a lot of computing power to be placed in a centralized “box.” By making it possible to run numerous applications over a real-time network, ARINC 600 enabled “next generation” integrated modular avionics (IMA).

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DO -326A and ED-202A : An Introduction to the New and Mandatory Aviation Cyber-Security Essentials

  • Professional Development
  • C1949
Published 2019-06-10

The international standards D-326A (U.S.) and ED-202A (Europe) titled "Airworthiness Security Process Specification" are the cornerstones of the "DO-326/ED-202 Set" and they are the only Acceptable Means of Compliance (AMC) by FAA & EASA for aviation cyber-security airworthiness certification, as of 2019. The "DO-326/ED-202 Set" also includes companion documents DO-356A/ED-203A: "Airworthiness Security Methods and Considerations" & DO-355/ED-204: "Information Security Guidance for Continuing Airworthiness" (U.S. & Europe) and ED-201: "Aeronautical Information System Security (AISS) Framework Guidance" & ED-205: "Process Standard for Security Certification / Declaration of Air Traffic Management / Air Navigation Services (ATM/ANS) Ground Systems“ (Europe only).

Modified USAF T-1A Aircraft

  • Magazine Article
  • TBMG-34538
Published 2019-06-01 by Tech Briefs Media Group in United States

Field Aerospace Oklahoma City, OK 405-219-3400