• Title/Summary/Keyword: 1553B

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A Design of Interface Module for Multiple Level MIL-STD-1553 Bus Topology (다중 MIL-STD-1553 버스 구조를 위한 인터페이스 모듈의 설계)

  • Seung Gi-Taek
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.6
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    • pp.1045-1054
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    • 2006
  • In this paper, described a design result of bus interface modulo for multiple level MU-SID-1553 data bus network. In general, MIL-SID-1553 network is used for single level data bus topology. But, according to applied system's structure. multiple level bus architecture is required., And for his, micro processor must be involved for system be, and a additional hardware and software functions are needed. The designed data bus interface module is simply consists of communication transceivers and simple electronic circuit without micro processor. Through the hardware testing and software simulation, the functional performance of the designed interface module was successfully validated.

Study of Analysis Technique of Flight Compatibility Test Data using Instrumented Pod for External Store (외부장착 계측포드를 사용한 비행적합성 자료 분석기법 연구)

  • Kim, Jong-Heon;Jun, Oo-Chul;Jun, Seung-Moon
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.33 no.8
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    • pp.105-110
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    • 2005
  • Analysis technique of flight compatibility test results using instrumented pod for external store is studied. Raw data of sensors and MIL-STD-1553B acquired from instrumented pod are analyzed separately. Besides, tuning and synchronization of sensor data enable the analysis of those two type of data simultaneously. Evaluation of analysis result shows that the analyzed data represent maneuvers of the aircraft successfully and agree the values of the real flight tests.

The Development of MFD with CDTI Using the MIL-STD-1553B Data Bus (MIL-STD-1553B 데이터 버스를 이용한 CDTI 기능을 구현한 MFD 제작)

  • Hong, Gyo-Young;Ahn, Dong-Man;Hong, Seung-Beom
    • Journal of Advanced Navigation Technology
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    • v.14 no.3
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    • pp.313-320
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    • 2010
  • Preparing for the rapidly increment of air traffic volume of the 21st century, International Civi1 Aviation Organization(ICAO) started for studying a newly developed CNS/ATM System from the 1980s and after 2010, expect that the existing aeronautical facility is overloaded because air traffic volume increase rapidly. For this reason new CNS/ATM System will be the international standard system in the future. Especially, ADS-B(Automatic Dependent Surveillance-Broadcast) as the key component of Surveillance and ATM in new CNS/ATM System provides the real-time and same air traffic information to pilots in the aircraft cockpit, air traffic controllers on the ground and surface vehicles at the same time. Information provided is displayed precisely and accurately through Multi-Function Display(MFD). We implement the MFD system being supporting for new CNS/ATM System. And we show the good performance of MFD system in labortory environment using the MIL-STD-1553B data bus.

Development of a Data Bus Analyzer for Avionics Interfaces of Various Types (다종 항공전자 인터페이스를 위한 데이터 버스 분석 장비 개발)

  • Kim, Min-Su
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.44 no.9
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    • pp.825-832
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    • 2016
  • This paper describes the development of a data bus analyzer for use in avionics systems integration test. The data bus analyzer is equipped with MIL-STD-1553B, CAN and Ethernet interface cards which is incorporated in a majority of the avionics systems to accommodate a variety of interfaces. It has an individual hardware for a capture engine and a analyzing engine in order to perform the collection and the analysis of the bus data at the same time efficiently. It provides a data display function of the grid, 2-dimensional and 3-dimensional form to increase the data analysis efficiency. Verification of the data bus analyzer was carried out module unit testing and inter-module integration testing on the basis of the test procedures. Verification of interlocking requirement and usefulness of developed equipment was confirmed through an integration test result performed on a system integration laboratory of aircraft which is an actual testing environment.

An Indirect Data Transfer Technique based on MIL-STD-1553B for the Software Upgrade of Embedded Equipments on a Missile Assembly with Booster (완성 유도탄 탑재장비의 소프트웨어 업그레이드를 위한 MIL-STD-1553B 기반 간접적 데이터 전송 기술)

  • Kim, Kipyo;Yu, Haesung;Lee, Heoncheol;Yun, Seokjae;Ahn, Keehyun;Woo, Deogyoung
    • Journal of the Korea Institute of Military Science and Technology
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    • v.19 no.1
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    • pp.43-49
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    • 2016
  • This paper addresses the problem of the software update or upgrade of embedded equipments on a missile assembly with booster. Because the embedded equipments are assembled delicately and closely one another with various communication and power cables, they should be very carefully disassembled to directly upgrade the software of a certain embedded equipment. This may cause not only the costs for disassembly and reassembly but also additional tests to verify the completeness of the reassembled missile as a missile assembly with booster. This paper presents an indirect data transfer technique based on MIL-STD-1553B through Guidance Control Unit to easily upgrade the software of other equipments without any additional costs caused by disassembly and reassembly. The presented technique was successfully applied to the software upgrade of various equipments on real missile assembly with booster.

Dynamic Routing and Priority-based Data Transmission Schemes in Avionic Ethernet for Improving Network QoS (항공전자 이더넷의 네트워크 성능 향상을 위한 동적 라우팅 기법 및 우선순위기반 데이터 전송 기법)

  • Lee, Won Jin;Kim, Yong Min
    • Journal of Advanced Navigation Technology
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    • v.23 no.4
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    • pp.302-308
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    • 2019
  • Aircraft data network (ADN) is a data networking for signal transmission among avionic systems in aircraft, and it mostly has been applied MIL-STD-1553B that guarantees high reliability considering its application environments. However, commercial Ethernet has been widely applied for ADN recently, and its range of applications have increased. Ethernet provides high speed of data transmission, however, it could not guarantee quality of service (QoS) so high as MIL-STD-1553B. In this paper, we propose dynamic routing and priority based data transmission schemes in order to improve the QoS of legacy Ethernet. Our propose schemes can be applied to Ethernet switch, and it is able to manage network traffic efficiently, and reduce the time for data transmission. We analyze the packet transmission time for both legacy and proposed schemes in Ethernet environments using simulation, and we show that our proposed scheme can reduce the time for data transmission compare to legacy spanning tree protocol.

전장품 접속을 위한 UART 시리얼 버스 구현에 대한 평가

  • Won, Ju-Ho;Jo, Yeong-Ho;Lee, Yun-Gi;Kim, Ui-Chan;Jo, Yeong-Jun;Lee, Sang-Gon
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.2
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    • pp.184.2-184.2
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    • 2012
  • 위성의 전장품은 전기적 접속을 위해서 1:1 연결을 하는 Point-to-Point 버스 방식과 여러개의 Slave (Remote Terminal)을 갖고, 일반적으로 1개의 Master (Controller)에 의해서 연결하게 되는 버스 구조를 갖는 접속 채널을 통해서 연결이 된다. 가장 많이 사용되는 방식인 MIL-STD-1553B는 데이터 전송속도가 1Mbps이고, Transformer에 의해서 완전하게 버스와 각 전장품이 완전하게 절연이 되는 구조로, 전기적 고장이 전달되는 것을 방지할 수가 있지만, 설계의 난이도가 높다. 고속 버스는 SpaceWire를 사용하고, 100Mbps이상의 속도를 지원할 수가 있지만, LVDS등의 고속 채널 설계 및 노이즈에 민감한 특성 때문에, 저속의 통신채널에서는 사용하기 어렵다. 저속의 데이터 채널을 위해서는 UART 방식이 사용된다. UART 방식은 RS-422 방식과 RS-485 방식이 사용되지만, 1553B 또는 SpaceWire 등과 같이 프로토콜이 정해지지 않아서, 사용자가 직접 프로토콜을 지정해야하는 문제가 있다. 또한 RS-422은 1:1 방식의 Point-to-Point UART를 위해서 사용되고, RS-485는 버스 방식의 연결을 지원할 수가 있지만, 동시에 여러개의 TX가 enable되는 경우에는 TX사이에 고장을 일으킬 수 있어서, 1번에 TX가 1개만 사용되도록 제어할 필요가 있다. 또한 RS-485방식의 버스를 구현할 경우에는 1553B처럼 와전하게 절연이 불가능하므로, 전기적이나 기능적으로 485버스에 문제가 발생할 경우에 절연과 같은 기능이 지원되도록 구현이 되어야 한다. 본 논문에서는 안정적인 485 UART버스 구현을 위한 기술에 대해서 평가하고 분석하도록 하겠다.

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The Design of Inter-processor Communication of KOMPSAT (아리랑위성 프로세서간 통신 설계)

  • 천이진;이종인;정창호;강수연
    • Proceedings of the Korean Information Science Society Conference
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    • 1998.10a
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    • pp.574-576
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    • 1998
  • 아리랑 위성은 자세, 전력, 열 제어 및 지상 명령 수신, 측정 데이터 수집 그리고 탑재체 지원을 위해서 3개의 80CI86 프로세서를 사용하고 있다. 단일 프로세서가 아니 여러 프로세서가 존재하게 되면 상호 간의 메시지 전달을 위해 통신 채널이 요구된다. 프로세서간의 상호 통신을 위해서 직접 연결을 사용하기도 하지만 아리랑 위성은 모듈화 개념 및 향후 확장을 위해서 MIL-STD-1553B 표준 버스 방식을 채택하고 있다. 메시지는 지상 명령 전송 및 측정 데이터 수집을 포함하므로 원활한 통신이 이루어지지 않을 경우, 위성 시스템에 심각한 문제를 발생킨다. 일반적으로 위성설계는 안정성과 신뢰성을 추구하므로 통신 설계는 다중 프로세서가 존재하는 위성의 경우 매우 중요한 의미를 지닌다. 본 논문에서는 아리랑 위성 MIL-STD-1553B 데이터 버스의 버퍼링(Buffering) 설계와 메시지의 적절한 배치를 통한 Timed-Scheduling설계 개념을 설명한다.

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Data Handling System Design for COMS (통신해양기상위성의 데이터처리 시스템 설계)

  • Cho, Young-Ho;Won, Joo-Ho;Choi, Jae-Dong;Yang, Koon-Ho
    • Proceedings of the IEEK Conference
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    • 2009.05a
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    • pp.246-248
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    • 2009
  • In this paper, we will describe architecture and key characteristic for the DHS which is used in COMS. DHS is implemented in the fully redundant SCU, the dual redundant MIL-STD-1553B system bus, the payload interface units(MPIU and MI2U), the redundant ADE. the SCU interface with the other main digital units of the spacecraft through the MIL-STD-1553B.

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