• IEMEK Journal of Embedded Systems and Applications
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• v.9 no.3
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• pp.183-191
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• 2014

The software running on avionic system is required to be highly reliable and productive. The air transport industry has developed ARINC Specification 653(ARINC653) as a standardized software requirement of avionics computers. The document specifies the interface boundary between avionics application software and the core executive software. Dependability in ARINC 653 is provided by spatial and temporal partitioning whilst fault-tolerance is provided by health monitoring mechanism. Legacy real-time operating systems are used to support ARINC653 health monitor on integrated modular avionics(IMA). However, legacy real-time operating systems are costly and difficult to modify the kernel. In this paper, we suggest a Linux-based ARINC653 health monitor. Functionalities to support ARINC653 health monitor are implemented as a Linux kernel module and its performance is evaluated.

• Telecommunications review
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• v.24 no.4
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• pp.468-480
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• 2014

The current-generation avionics systems are based on a federated architecture, where an electronic device runs a single software module or application that collaborates with other devices through a network. This architecture makes the internal system architecture very complicate, and gives rise to issues of Size, Weight, and Power (SWaP). In this paper, we show that the partitioning defined by ARINC 653 can efficiently deal with the SWaP issues on small unmanned aerial vehicles, where the SWaP issues are extremely severe. We especially install the integrated mission system on real hexacopter and quadcopter and perform successful flight tests. The presented software technology for integrated mission system and software consolidation methodology can provide a valuable reference for other SWaP sensitive real-time systems.

• Journal of Advanced Navigation Technology
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• v.19 no.5
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• pp.423-432
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• 2015

This paper shows that design, manufacture and the performance of FC-NIC (fibre channel network interface card) for network unit configuration which is based on one of the 5 main configuration items of the common functional module for IMA (integrated modular Avionics) architecture. Especially, FC-NIC uses zynq SoC (system on chip) for host load reductions. The host merely transmit FC destination address, source memory location and size information to the FC-NIC. After then the FC-NIC read the host memory via DMA (direct memory access). FC upper layer protocol and sequence process at local processor and programmable logic of FC-NIC zynq SoC. It enables to free from host load for external communication. The performance of FC-NIC shows average 5.47 us low end-to-end latency at 2.125 Gbps line speed. It represent that FC-NIC is one of good candidate network for IMA.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06b
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• pp.90-93
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• 2011

항공 전자 시스템은 다양하고 중요한 임무를 수행하는 다양한 전자 장치들로 이루어지며 전자 장치들은 점차 통합 구조 시스템(IMA, Integrated Modular Avionics)으로 구성되고 있다. 이러한 통합 구조 시스템은 전자 장치의 다양한 종류와 육중한 중량을 이유로 단일 컴퓨터 환경에서 구성된다. 이러한 이유로 항공 전자 시스템에서 사용되는 응용프로그램들 또한 단일 컴퓨터에서 효율적으로 통합될 수 있어야 한다. 응용프로그램들은 각기 다른 기관에서 개발되는 경우가 많으며 그중 일부는 다른 항공 전자 시스템에 재사용 될 수 있다. 이와 같은 통합구조에서 갖는 응용프로그램들의 특성을 고려하여 시 공간적으로 분리된 파티션으로 구분하는 ARINC 653과 같은 표준이 등장 하였다. 가상화 기술은 여러 개의 가상머신을 제공하고 다양한 장치에 대하여 에뮬레이션 함으로써 하나의 가상 머신은 ARINC 653의 파티션 개념을 적용하는데 충분한 잠재력을 가지고 있다. ARINC 653을 많은 타겟 운영체제나 반 가상화 환경에서 적용된 예는 많다. 하지만 아직까지 전 가상화 환경에서 ARINC 653을 적용한 예는 없다. 따라서 본 논문에서는 두 종류의 전 가상화 환경(VMware, VirtualBox)에서 ARINC 653을 적용하기 위한 구조를 제시하고 구현한다.

• Journal of Aerospace System Engineering
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• v.13 no.5
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• pp.1-8
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• 2019

Recently, avionics has been migrating from a federated architecture to an integrated modular architecture based on a multi-core to reduce the number of systems, weight, power consumption, and platform redundancy. The volume of data which must bo provided to the pilot through the display device has increased, because an integrated single device performs multiple functions. For this reason, the volume of data processed by the graphic processor within a fixed operation period has increased. In this paper, we provide a multi-core-based rendering engine in to perform more graphics processing within a fixed operation period. We assume the proposed method uses a multi-core-based partitioning operating system using the AMP (Asymmetric Multi-Processing) architecture.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.104-105
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• 2012

최근 항공용 전자 시스템은 IMA (Integrated Modular Avionics) 방식으로 개발되고 있고 여기에는 실시간 운영체제의 표준인 ARINC 653이 적용되고 있다. ARINC 653은 시간적 공간적 파티셔닝을 제공함으로써 항공용 시스템의 안전성을 보장하며, OS 커널과 응용 소프트웨어 사이에 표준 API를 제공함으로써 두 파트가 서로 독립적으로 개발될 수 있게 한다. 이러한 방식은 시스템의 이식성을 높일 수 있는데, 이를 보장하는 핵심 기법이 ARINC 653 설정이다. 본 논문에서는 산업현장에서 ARINC 653 설정을 쉽게 적용하여 응용 소프트웨어를 개발할 수 있는 도구를 소개한다.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.11
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• pp.1056-1060
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• 2010

The software running on avionic systems is required to be highly reliable and productive. Due to these demands, the standard such as ARINC 653 has been suggested, which includes the abstraction of resource partitioning and defines interfaces between avionic operating system and applications. Though there are many manned aerial vehicles employing ARINC 653 based operating systems, Linux-based ARINC 653 for unmanned aerial vehicles has not been studied yet. In this paper, we propose the design of Linux-based ARINC 653 process model and present preliminary implementation. The experiment results present that the implementation is enough to support control software of unmanned helicopter.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.12
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• pp.1884-1891
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• 2016

With the various usage of civil drones, such as hobby, filmmaking and surveillance, the need for technology that safely reconstructs software for target application domains has been increasingly rising. In order to support a reliable software integration of avionic systems, the ARINC 653 standard has been proposed and adapted mainly on manned aircrafts. Therefore, applying ARINC 653 on civil drones could be desirable. Though, various researches on implementing ARINC 653 has been conducted, there are still additional requirements to apply ARINC 653 to civil drones that use various platforms and have a wide range of use. In this paper, taking account of these requirements, we implement a portable and extensible ARINC 653 and analyze its performance. We offer the portability with the OS abstraction layer that reduces dependency on a specific operating system, and provide the design that can extend internal functions, such as partition scheduler and process scheduler.