• Title/Summary/Keyword: 비행데이터기록장치

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Research on the Method of a Composite Navigation Algorithm Using Aircraft Recorder Data (비행기록자료를 이용한 복합항법 알고리즘 구성)

  • Kim, Jae-Hyung;Lyou, Joon
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.36 no.5
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    • pp.462-471
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    • 2008
  • Flight recoder is used to analyze the accident factors and prevent the accident. In the analysis of the flight recorder, the most important factor is how to estimate the precise location of the flight. Traditional aviation navigation is based on stable sensors such as DME and VOR. In order to enhance the precision of the location estimation, the integrated navigation algorithm is designed to incorporate DME, Air data sensors and INS(Inertial Navigation System). The results demonstrate that the proposed algorithm can achieve better accuracy, comparing with the traditional navigation schemes, in flight location estimation.

A Method of Deriving UAS Flight Recording System Parameters for Aviation Accident and Incident Investigation (항공사고 및 준사고 조사를 위한 UAS 비행 기록 시스템 파라미터 도출 방안)

  • Keon-hee Lee;Joong-yoon Lee
    • Journal of Advanced Navigation Technology
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    • v.28 no.1
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    • pp.77-86
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    • 2024
  • 'UAS flight recording system' is a system that is mounted on an unmanned aircraft system consisting of various components and records flight-related data. The data recorded by this system should be used for aviation accident and incident investigations to prevent similar accidents. In particular, for the category of UAS with high operating risk, safety devices close to that of manned aircraft are required, and it is urgent to develop flight recording systems reflecting the characteristics of the UAS to secure airworthiness. This paper highlights the need for UAS flight recording systems for aviation accident and incident investigations and seek a method to derive flight recording system parameters for 'Certified Category' with high operational risk. To this end, Inter-City UAM was used as a concrete use case, and the process of approaching system parameters was devised by assuming accident occurrences and hazards from mission profiles and scenarios. As a result of the study, it was confirmed that parameters could be derived through this process.

Design and Verification of Housing and Memory Board for Downsizing for Crash Protected Memory Module (충돌보호메모리모듈의 소형화를 위한 하우징 및 메모리 보드 설계와 검증)

  • Kim, Jun-Hyoung;Kim, Jung-Pil;Kim, Jeong-Yeol;Kim, Tae-Won
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.48 no.1
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    • pp.81-88
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    • 2020
  • Flight data recorder is a equipment that records data required for investigation of aircraft accidents and should be developed in compliance with the ED-112A standard. Unlike general data storage device, flight data recorder must be able to recover data after an aircraft accident, requiring a housing and a memory board to protect data in extreme environments. To attain this performance, we designed a housing that can withstand the test by analyzing the physical environment of the impact, shear/tensile, penetration resistance and static crush test of the crash survival test and minimized the size and weight compared to the existing one in consideration of the installation of the aircraft in this paper. Insulation material and thermal block material were applied to endure high and low temperature fire so that the internal temperature does not rise above 150℃ even in 260℃, 10 hour environment. In addition, the memory board is designed to minimize the size and we devise a hoping programming method to prevent continuous data loss of more than 16 seconds. Through this, Crash protected memory module that satisfies ED-112A was completed.

Study on Production of Power Monitoring Unit for Electric Propulsion UAV (전기동력 무인항공기용 PMU의 개선 및 제작에 대한 연구)

  • Kang, Jin-Myeong;Jeong, Jin-Seok;Kang, Beom-Soo;Kim, Jang-Mok
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.45 no.2
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    • pp.140-147
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    • 2017
  • This paper describes the design and implementation of previously developed PMU (Power Monitoring Unit) for LiPB (Lithium-ion Polymer Battery) that is electric propulsion used as unmanned aerial vehicle's power source. Improved PMU provides stable voltage and current to various sensors and elctric motors necessary during flight. Voltage and current monitoring function that is measured by improved PMU more precisely be enhanced and the monitoring channel and temperature sensor is added. To verify the improved performance of the equipment, it is integrated to electric propulsion system of unmanned aerial vehicle. PMU is calibrated through the ground test. And PMU's performance is checked through the flight test.

Study of the Telemetry Ground Station for FA-50 Flight Test Instrumentation System (신규 형상에 따른 FA-50 지상계측 방안 연구)

  • Lee, Ju-Ha;Kim, Bo-Sung;Yoo, Byeong-Seon
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.16 no.4
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    • pp.20-25
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    • 2008
  • The purpose of this study is leading to reduce the setup time and cost of the ground telemetry system for FA-50 program. And using the accumulated experience during T-50 and TA-50 development period, remove the risk of development and construct the optimal ground telemetry system for FA-50. For this study, collect the ground telemetry data of the T-50/TA-50, analyze the data and problems and then suggest the optimal telemetry ground system for FA-50.

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The Digital Redundancy Design for Back-up Mode Operation of Aviation Intercom (항공용 인터콤의 백업 모드 운용을 위한 디지털 방식의 이중화 설계)

  • Jeong, Seong-jae;Cho, Kyung-hak;Kim, Dong-hyouk;Lee, Seong-woo
    • Journal of Advanced Navigation Technology
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    • v.26 no.5
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    • pp.358-364
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    • 2022
  • The Inter Communication System for avionics is in charge of processing all voice signals that internal calls between Pilot and Co-pilot, internal calls between Pilots and Crews, external calls through communication equipment such as Ultra/Very High Frequency Receiver/Transmitter(U/VHF RT), audio signal monitoring for navigation and mission equipment such as VHF Omnidirectional Range/Instrument Landing System(VOR/ILS), Tactical Air Navigation(TACAN), audio signal output for voice recording to Flight Data Recorder(FDR) and Data Transfer System(DTS), and warning/caution audio signal generate about the status and threat of aircraft. Because Inter Communication System for avionics is sensitive to noise in the case of analog audio signals, a redundant design that can protect audio signal from electromagnetic noise inside/outside of aircraft is required for the mission of pilots and crews. In this paper, Normal/Back-up operation mode and redundancy design plan based on digital method for the redundancy of the digital Inter Communication System for avionics and manufacturing, verification results are described.

Privilege and Immunity of Information and Data from Aviation Safety Program in Unites States (미국 항공안전데이터 프로그램의 비공개 특권과 제재 면제에 관한 연구)

  • Moon, Joon-Jo
    • The Korean Journal of Air & Space Law and Policy
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    • v.23 no.2
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    • pp.137-172
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    • 2008
  • The earliest safety data programs, the FDR and CVR, were electronic reporting systems that generate data "automatically." The FDR program, originally instituted in 1958, had no publicly available restrictions for protections against sanctions by the FAA or an airline, although there are agreements and union contracts forbidding the use of FDR data for FAA enforcement actions. This FDR program still has the least formalized protections. With the advent of the CVR program in 1966, the precursor to the current FAR 91.25 was already in place, having been promulgated in 1964. It stated that the FAA would not use CVR data for enforcement actions. In 1982, Congress began restricting the disclosure of the CVR tape and transcripts. Congress added further clarification of the availability of discovery in civil litigation in 1994. Thus, the CVR data have more definitive protections in place than do FDR data. The ASRS was the first non-automatic reporting system; and built into its original design in 1975 was a promise of limited protection from enforcement sanctions. That promise was further codified in an FAR in 1979. As with the CVR, from its inception, the ASRS had some protections built in for the person who might have had a safety problem. However, the program did not (and to this day does not) explicitly deal with issues of use by airlines, litigants, or the public media, although it appears that airlines will either take a non-punitive stance if an ASRS report is filed, or the airline may ignore the fact that it has been filed at all. The FAA worked with several U.S. airlines in the early 1990s on developing ASAP programs, and the FAA issued an Advisory Circular about the program in 1997. From its inception, the ASAP program contained some FAA enforcement protections and company discipline protections, although some protection against litigation disclosure and public disclosure was not added until 2003, when FAA Order 8000.82 was promulgated, placing the program under the protections of FAR 193, which had been added in 2001. The FOQA program, when it was first instituted through a demonstration program in 1995, did not contain protections against sanctions. Now, however, the FAA cannot take enforcement action based on FOQA safety data, and an airline is limited to "corrective action" under the program. Union contracts can exclude FOQA from the realm of disciplinary action, although airline practice may be for airlines to require retraining if there is no contract in place forbidding it. The data is protected against disclosure for litigation and public media purposes by FAA Order 8000.81, issued in 2003, which placed FOQA under the protections of FAR 193. The figure on the next page shows when each program began, and when each statute, regulation, or order became effective for that program.

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