• The Korean Journal of Air & Space Law and Policy
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• v.28 no.2
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• pp.37-61
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• 2013

In modern international law, the absence of legal definition regarding drone(Unmanned Aerial Vehicle) has made legal scholars work on an typical analogy between aircraft codified in the international document and drone. The wording of the Convention on International Civil Aviation is limited to two categories of aircraft, such as civil aircraft and state aircraft, whereas military aircraft is not legally defined. As such it is, the current practices of the State regarding the drone flight over foreign territory have proven a hypothese that drone is being deemed as military aircraft. Principal usage of drone lies in reconnaissance and surveillance mission as well as so-called targeted killing, which is prohibited if the killing is treacherous. Claimed war against terrorism, however, is providing a legal rationale that targeted killing is not treacherous, and that the targeted person is not civilian but combatant. In such context, armed attack of drone is deemed legal and justified. Consequently, such attack is legal in the general context of the war. The rules that govern targeting do not turn on the type of weapon system used, and there is no prohibition under the laws of war on the use of technologically advanced weapons systems in armed conflict so long as they are employed in conformity with applicable laws of war. Drones may present interesting new challenges because of their sophistication and the technological advantage they convey to their operators.

• Journal of Aerospace System Engineering
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• v.13 no.3
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• pp.40-47
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• 2019

This paper proposes the environment construction and test method of system integration laboratory (SIL) and system integration test (SIT) for verification of interface between onboard equipment and ground control equipment of unmanned aerial systems (UAS). This research also describes the interface environment between subsystems built in SIL and verification methods for the systems' operation logic through simulated flights. Similarly, the paper handles the ground integration test process of UAS in the real testing environments.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.57-60
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• 2007

국방 연구개발은 사용군의 요구사항을 만족시키는 무기체계를 최단 기간, 최소 비용 및 고품질로 개발하고자 노력하고 있으며, 통합 무기체계 데이터베이스 전산 환경 하에서 체계공학 및 동시공학을 체계적으로 구현하기 위한 연구개발 프로세스 및 도구들이 개발되고 있다. 항공 무기체계 분야에서 본 논문의 연구개발 과정에서 생성되는 기술 자료를 효율적으로 관리하기 위한 웹기반 체계운영관리시스템을 개발 및 운용하고 있으며, 기존 항공 무기체계 연구개발 사업에 적용하여 그 효율성을 입증 및 검증하였다. 이에 본 논문에서는 통합 무기체계 데이터베이스 기반으로 향후 개발 예정인 보라매 사업, 무인항공기 및 무인전투기에 적용 가능한 통합 연구개발 프레임웍(Framework) 및 체계운영관리시스템의 발전 방안에 대해서 기술한다.

• The Korean Journal of Air & Space Law and Policy
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• v.28 no.1
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• pp.3-54
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• 2013

Nowadays, major advanced countries in aviation technology are putting their effort to develop commercial and civil Unmanned Aircraft System(UAS) due to its highly promising market demand in the future. The market scale of commercial and civil UAS is expected to increase up to approximately 8.8 billon U.S. dollars by the year 2020. The usage of commercial and civil UAS covers various areas such as remote sensing, relaying communications, pollution monitoring, fire detection, aerial reconnaissance and photography, coastline monitoring, traffic monitoring and control, disaster control, search and rescue, etc. With the introduction of UAS, changes need to be made on current Air Traffic Management Systems which are focused mainly manned aircrafts to support the operation of UAS. Accordingly, the legislation for the UAS operation should be followed. Currently, ICAO's Unmanned Aircraft System Study Group(UASSG) is leading the standardization process of legislation for UAS operation internationally. However, some advanced countries such as United States, United Kingdom, Australia have adopted its own legislation. Among these countries, United States is most forth going with President Obama signing a bill to integrate UAS into U.S. national airspace by 2015. In case of Korea, legislation for the unmanned aircraft system is just in the beginning stage. There are no regulations regarding the operation of unmanned aircraft in Korea's domestic aviation law except some clauses regarding definition and permission of the unmanned aircraft flight. However, the unmanned aircrafts are currently being used in military and under development for commercial use. In addition, the Ministry of Land, Infrastructure and Transport has a ambitious plan to develop commercial and civil UAS as Korea's most competitive area in aircraft production and export. Thus, Korea is in need of the legislation for the UAS operation domestically. In this regards, I personally think that Korea's domestic legislation for UAS operation will be enacted focusing on following 12 areas : (1)use of airspace, (2)licenses of personnel, (3)certification of airworthiness, (4)definition, (5)classification, (6)equipments and documents, (7)communication, (8)rules of air, (9)training, (10)security, (11)insurance, (12)others. Im parallel with enacting domestic legislation, korea should contribute to the development of international standards for UAS operation by actively participating ICAO's UASSG.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2003.02a
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• pp.63-68
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• 2003

현 방제작업의 노동집약적, 비효율적, 작업기피성 등을 고려할 때, 농산물의 경제적 생산을 위한 소형무인 항공방제기술을 개발하여 효율적이며 안정된 생산과 농업종사자의 작업환경을 개선하고 생력화함으로써 품질 및 가격에서 경쟁력을 갖출 수 있다. 연구에서 고찰한 내용을 요약하면 다음과 같다. \circled1 노동강도가 큰 수도작의 발제작업 및 적기성에 있어서 항공방제기술의 도입이 절실하다. \circled2 소형헬기의 작업능률은 30-50 ㏊/day로 소규모 지역에서 효율적으로 수행할 수 있다. \circled3 ULV (ultra low volume) 항공방제용 등록약제의 실적용이 가능하다. \circled4 일본의 경우 무인헬기를 이용한 방제 연면적은 44만 ㏊에 이르고 점차 증가하고 있다. \circled5 적기방제, 소규모 정밀방제, 환경과 소음 대책이 타 방법에 비하여 양호하다. \circled6 무인헬기를 이용한 방제작업은 작업자의 노동강도를 현저히 줄일 수 있다. \circled7 농업항공협회 등 안전운용체계를 확립하여 소형헬기의 안전한 운용을 추구해야한다. 현재 일부 방제 및 파종에 사용되는 유인헬기가 외국으로부터 도입되어 일부 사용되고 있으나 상기의 이유로 무인으로 작업이 가능한 소형 헬기의 개발이 절실한 실정이며 특히 항법시스템은 국가 간 기술적으로 폐쇄성이 강한 분야로 독자개발이 필요하다. 소형 무인 헬기의 농업이외의 적용 분야는 많으며 상업용 촬영, 군경용 감시 및 레저용 등으로 그 경제/산업적 파급 효과는 크다 하겠다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.85-86
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• 2022

Traditionally, the facility inspection was visually conducted by the managers, and consequently the result can be subjective because of different perspective and experience of them. To solve this problem, the studies on this topic has tried to integrate the UAS. However, it is still concerned to use in practice due to the lack of analysis of the performance factors affecting the UAS-based facility condition inspection. Hence, the purpose of this study is to identify the critical factors as well as their correlations by modeling causal loop diagram (CLD). A total of 20 variables were derived in four categorized groups, and the relationships were analyzed. Further study will develop a system dynamics (SD) model to simulate various scenarios based on stock-flow diagram through the defined relationships in this study.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.05a
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• pp.172-173
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• 2021

In recent, unmanned Aircraft Systems (UAS) have been widely used for various purposes, such as safety inspection, facility condition inspection, progress monitoring, in the architecture engineering, and construction (AEC) industry. This technology can provide visual assets regarding the conditions of construction jobsites as well as constructed facilities during flying over the point of interests. With the significant interests in this advancement, the recent studies have presented how the UAS can be applied fro different types of facilities (e.g., buildings, power genereation systems, roads, or bridges) to inspect the current conditions of them for safe operations as well as public's safety. This study reviewed the receent studies to document their scientific findings and practical contributions, as well as provided the overview of further implications for future studies.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.369-370
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• 2023

Although the construction industry has become highly advanced, traditional accidents still occur on construction sites, prompting numerous studies and systems aimed at accident prevention using smart construction technology. This study is an exploratory investigation of utilizing unmanned aerial vehicles (UAVs) for safety management. The study aims to verify harmful and hazardous factors that UAVs can detect on construction sites, classify management factors, and define improvement measures to present a checklist for each process. Through this, we hope that smart construction technology will be further expanded and applied for on-site safety management.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.28 no.4
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• pp.47-54
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• 2020

This study carries out a basic study of ways to calculate navigation errors for aircraft operating in the unmanned aerial system traffic management(UTM). Recently, research by UTM has been carried out both at home and abroad, along with the initial study of system definitions at the basic stage, operational techniques of the aircraft, and the practicality of the concept of necessary operations at the actual operational stage. This study presented after a review the factors that should be considered for the calculation of navigation errors among the factors that examine whether the actual low altitude aircraft can operate properly within UTM during its actual operation and the need to apply them in practice.

• Journal of Aerospace System Engineering
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• v.13 no.3
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• pp.48-55
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• 2019

This paper presents a study on Fault History Management Equipment (FHME) of Unmanned Aerial Systems (UAS). UAS comprise of various types of electronic equipment for high reliability design for flight safety. Consequently, it is mandatory for each on-board equipment to have its own Built-In-Test (BIT) function, because rapid fault-detections for UAS are necessary. FHME is developed for the purposes of display, storage and management of such BIT results on ground. This paper describes the outline, development requirements, design and verification process of FHME.