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Utilization of AeroMACS Infrastructure for Airports and Airlines (공항 및 항공사를 위한 AeroMACS 인프라 활용 연구)

  • Lim, In-Kyu;Kang, Ja-Young
    • Journal of Advanced Navigation Technology
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    • v.23 no.5
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    • pp.373-379
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    • 2019
  • AeroMACS spectrum is a national resource internationally allocated by ITU at WRC-07. AeroMACS is an airport broadband mobile communication infrastructure based on WiMAX-based IEEE 802.16e that enables real-time video, graphics, voice, and high-speed data transmission. With the approval of ICAO's development technology standards in 2008, 50 airports in 11 countries have already completed the testing of D-TAXI or A-SMGCS technology using the AeroMACS infrastructure in 2019, starting in the United States in 2009. With many advantages in safety and convenience in terrestrial telecommunications operations, the system is becoming an area of performance improvement for airport operations in accordance with ICAO's ASBU plan. This paper examines the current status of domestic development of AeroMACS and lists service areas applicable to airlines and operators. It also seeks to promote safe and efficient next-generation airport mobile communication system services by presenting feasible partners management in the mobile area and use of aircraft communication systems for active technology development.

The Effects of Leadership on the Cockpit Culture in Commercial Airlines (리더십이 민간항공 조종실 문화에 미치는 영향)

  • Kim, Young-Kil;Byeon, Soon-cheol
    • Journal of Advanced Navigation Technology
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    • v.25 no.5
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    • pp.344-356
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    • 2021
  • In the field of civil aviation in Korea, inappropriate crew resources management(CRM) constantly occurs between captains and first officers during flight. Therefore, the active role of first officers is emphasized in pilot training for CRM, threat & error management(TEM), safety management system(SMS), fatigue risk management system(FRMS), and training in simulators. Thus, it is urgent for captains to change their transformational leadership to emotional leadership, advantages of which include horizontal interpersonal relationship, open-mindedness, leading by example, considerateness, mutual respect, and using informal language. For the direction to improve 'the cockpit culture' in civil aviation, the key idea of the current thesis paper is the influence of captains' transformational and emotional leadership on the emotions of first officers.

Factors Affecting the Security Ability of Port Logistics Organization Members (항만물류조직구성원들의 보안능력에 영향을 미치는 요인)

  • Kang, Da-Yeon
    • Journal of Navigation and Port Research
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    • v.43 no.3
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    • pp.179-185
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    • 2019
  • Currently, despite having active movements related to port logistics security, there is lack of awareness, education, and security systems related to port technology. Before implementing port logistics security, a mutual authentication agreement should be reached through the establishment of an integrated network that can share port logistics security information in real time. In order to achieve port competitiveness and strengthen logistics service, establishment of national strategy for logistics security is necessary. However, there is an urgent need to raise the security consciousness among the port logistics organization members and enhance the information security ability which is a crucial feature of the port logistics organization. Therefore, the objective of this study is to analyze the factors affecting the information security capacity of port logistics organization members. Even though the analysis rejected the hypothesis that security regulations affect security awareness, the security activities and security awareness were significantly correlated. It also has a positive impact on the relationship between security norms and security abilities, and security awareness and security abilities.

Development and Experimental Evaluation of a Ship Berthing System Using Active Fenders (능동형 펜더 기반의 접안지원시스템 개발 및 실선실험)

  • Kim, Chang-Woo;Lee, Dong-Hun;Park, Jung-Suk;Kim, Young-Bok
    • Journal of Navigation and Port Research
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    • v.44 no.6
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    • pp.494-500
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    • 2020
  • Maneuvering vessels in the harbor is an interesting problem in marine cybernetics. The vessel, operated by the pilot and moving very slowly in shallow water, usually is assisted by thrusters, the main propulsion system, and tugboats. In this paper, we suggest a new vessel berthing technique using dampers (cylinder-type fenders) and a system of winches for complex and dangerous berthing situations. We found that control of the fender stroke and rope tension enabled a safe and quick berthing process. The effectiveness and usefulness of this berthing system was verified using a ship of about 2,000 tons.

A Study on the Operational Risk Assessment of cargo transport Korean Urban Air Mobility(K-UAM) trial operation corridor applying SORA Model (SORA 모델을 적용한 화물운송 한국형 도심항공교통(K-UAM) 시범운용 회랑의 운용위험도 평가 연구)

  • Namgung, Pyeong;Eom, Jeongho;Lee, Seungkeun;Kwon, Thawha
    • Journal of Advanced Navigation Technology
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    • v.26 no.3
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    • pp.125-135
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    • 2022
  • UAM is emerging as the biggest issue in the aviation industry and which is attracting a lot of attention not only domestically but also internationally. In Korea, active research is being conducted centered on the government and industry-university research institutes, such as the establishment of a future K-UAM concept of operation. Therefore, in this study applies the SORA (Specific Operation Risk Assessment) model established by the European JARUS (Joint Authorities for Rulemaking on Unmanned Systems) to apply the K-UAM operation environment and specific corridor for the purpose of cargo transportation that will be operated in the future that the government is promoting. We intend to suggest policy and technical measures for risk mitigation in the initial operating environment by evaluating the level of risk and analyzing the results.

Analysis of Interferences into a Space Weather Observation Receiver in 2.8GHz Band (2.8GHz 대역 우주기상 관측 수신기에 미치는 간섭 분석)

  • Kang, Young-Heung
    • Journal of Advanced Navigation Technology
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    • v.26 no.5
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    • pp.350-357
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    • 2022
  • With the recent prediction of 'Cycle 25', the importance of space weather research increases. Accordingly, the World Radiocommunication Conference (WRC)-23 has adopted Agenda Item 9.1a) and carried out sharing researches between active/passive space weather observation systems and existing services. Therefore, in this paper, in order to increase the precision of space weather environment data and secure the frequency spectrum for observation systems, the direct interference effect from the weather radar in Gosan, Jeju on the space weather observation receiver in Hallim, Jeju, and the indirect interference on the observation receiver by diffraction and scattering from the radar target have been analyzed. As a result, it can be known that the radar direction, the propagation direction diffracted and scattered from the target, and the Rradar Cross Section (RCS) of the radar target, the reception area of the space weather observation antenna, and the antenna off-boresight are important parameters for the interference effect analysis.

A study on the datalink Interface between fighter jet RADAR and BVR AA guided missile (전투기 레이다의 시계 외 중거리 공대공 유도탄 데이터링크 연동방안 연구)

  • Yong-min Kim
    • Journal of Advanced Navigation Technology
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    • v.27 no.4
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    • pp.453-456
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    • 2023
  • Fighter jets employ guided missiles equipped with seekers to counter enemy air threats. Short range guided missiles(SRM) usually carry infrared(IR) seekers and are used to engage targets within visual range. On the other hand, medium range guided missiles(MRM) often utilize radio frequency(RF) seekers to engage targets beyond visual range. Medium range guided missiles do not activate their seekers until they reach the detection range of the seeker, and the aircraft's radar guides them for a certain distance. This guidance method is called Missile Data Link(MDL), and it can be implemented in either one-way or two-way communication modes, depending on the missile's communication system. In this paper, we discuss MDL based on these two communication modes, along with the integration of RADAR, mission computers, and guided missiles.

A Study on the Construction of Sustainable Connected Transportation in Kepulauan Riau, Indonesia Using Advanced Air Mobility (AAM) (AAM을 활용한 인도네시아 Kepulauan Riau의 지속 가능한 연결 교통 구축에 관한 연구)

  • Prastyoutomo, Puguh;Kwang-Byeng, Lee
    • Journal of Advanced Navigation Technology
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    • v.28 no.3
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    • pp.288-299
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    • 2024
  • Indonesia's Keplauan Liau region is facing limitations in the development of connected transportation infrastructure due to its archipelago nature, budget constraints, and lack of land. Transportation demand is increasing due to its strategic location in the Malacca Strait Business Triangle and many tourist visits from Singapore and Malaysia. However, due to the nature of connecting many islands, the establishment of transportation infrastructure has not been achieved. This paper aims to predict the innovations that can be brought about by the introduction of advanced air mobility (AAM) with an electric vertical take-off and landing (e-VTOL) system through analysis and application consideration of the actual situation in Indonesia's Kepulauan Liau region. In addition, it intends to contribute to national-level review and policy establishment on the establishment of innovative transportation infrastructure using AAM, reflection in infrastructure construction plans, and active global cooperation.

Artificial Intelligence-Based Construction Equipment Safety Technology (인공지능 기반 건설장비 안전 기술)

  • Young-Kyo Lee
    • Journal of Advanced Navigation Technology
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    • v.28 no.4
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    • pp.566-573
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    • 2024
  • Applying autonomous driving technology to construction sites is very difficult due to safety issues. However, the application of various positioning and sensing devices, such as cameras and radars, to construction equipment is very active. Based on these technological trends, the government is making various efforts, including the Serious Accident Punishment Act and support for industrial safety management expenses, to reduce the incidence of accidents caused by construction equipment and industrial vehicles. And, related industries have been developing various safety equipment over the past few years and applying them to the field. In this paper, we investigate the current status of safety equipment-related technologies currently applied to construction equipment and industrial vehicles, and propose a direction for the development of safety technology in construction equipment based on artificial intelligence. Improving the safety and work efficiency of construction equipment based on the technology proposed in this paper should be reviewed through simulation in the future.

A Study on the Safety Handling Method of KCG's Water Jet Propulsion Ship (해양경찰 Water Jet 추진함정의 안전 조함법 연구)

  • Yun, Chong-Gum;Pak, Chae-Hong;Park, Deuk-Jin;Jung, Cho-Yeong
    • Journal of Navigation and Port Research
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    • v.41 no.6
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    • pp.373-380
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    • 2017
  • Operational errors caused by human factors, which is the major cause of marine accidents, include lack of knowledge, misunderstanding knowledge, and inadequate procedures. Recently, the type of propulsion mounted on KCG cutters has been diversified. In particular, the water jet propulsion unit, which was mainly installed in small boats, have been gradually expanded to medium and large size Coast Guard cutters, reaching 50% of the total. Axes types are divided into 2 to 4, and the bucket types are divided into Double Reverse Bucket(DRB) and Single Reverse Bucket(SRB); in these, the backward and steering control methods are completely different. Diversification of these operating systems can increase factors causing human error by the ships' operators. However, there is a lack of research on the maneuvering methods, considering the inherent active characteristics of each type of water jet. In this paper, we analyze the sideway method suitable for the condition of Coast Guard Exclusive wharf without assistance, based on the astern performance of each type. Then, a ship handling simulator was used for the experiment; they compared and verified through interviews of captains.