• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.145-152
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• 2021

In the Recent times, various technological enhancements in the field of artificial intelligence and big data has been noticed. This advancement coupled with the evolution of the 5G communication and Internet of Things technologies, has helped in the development in the domain of smart mine construction. The development of unmanned vehicles with enhanced and smart scheduling system for open-pit mine transportation is one such much needed application. Traditional open-pit mining systems, which often cause vehicle delays and congestion, are controlled by human authority. The number of sensors has been used to operate unmanned cars in an open-pit mine. The sensors haves been used to prove the real-time data in large quantity. Using this data, we analyses and create an improved transportation scheduling mechanism so as to optimize the paths for the vehicles. Considering the huge amount the data received and aggregated through various sensors or sources like, the GPS data of the unmanned vehicle, the equipment information, an intelligent, and multi-target, open-pit mine unmanned vehicle schedules model was developed. It is also matched with real open-pit mine product to reduce transport costs, overall unmanned vehicle wait times and fluctuation in ore quality. To resolve the issue of scheduling the transportation, we prefer to use algorithms based on artificial intelligence. To improve the convergence, distribution, and diversity of the classic, rapidly non-dominated genetic trial algorithm, to solve limited high-dimensional multi-objective problems, we propose a decomposition-based restricted genetic algorithm for dominance (DBCDP-NSGA-II).

• 디지털융복합연구
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• 제13권1호
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• pp.297-304
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• 2015

최근 들어 무인 자율주행 기반의 수요응답형 순환교통(PRT)시스템에 대한 수요가 증가하고 있다. 이에 따라 유형 궤도 및 일반적인 도로에서 운용 가능한 PRT 시스템의 적용이 다양하게 검토되고 있다. 유형 궤도가 없이 일반 도로 상에서 운행되는 무인자동 차량의 경우, 실시간으로 차량의 위치 정보를 계측하는 것은 무인 차량의 자동안내를 위해 매우 중요하다. 위성항법장치(GPS)는 차량의 위치 확인을 위해 상업적으로 적용되어 활용되고 있다. 하지만 터널 또는 빌딩 등의 실내 환경에서 적용될 수 없다. 본 논문에서는 이러한 환경적 제약을 극복할 수 있는 자기표지 기반의 PRT 차량 무인운전 시스템의 구성장치와 제어시스템에서 사용하기 위한 차량의 주행제어 모델을 제시하였다. 또한 차량의 주행중 실시간 위치를 추정하기 위해 개발된 자기검출센서를 제시하였고 차량의 무인운전에 필요한 지령을 생성하기 위한 제어SW와 이를 통한 제어시험 결과를 제시하였다.

• 무역학회지
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• 제46권5호
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• pp.49-63
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• 2021

The HS Convention is an agreement on the harmonized commodity description and coding system enacted by the World Customs Organization in January 1988 to promote international trade and unify the commodity classification systems internationally, and the seventh revision will take effect in January 2022. This study's main purpose is to consider criteria for classifying unmanned autonomous transport systems(UATS) in accordance with Section 17 of the HS nomenclature and to present recommendations for improvement of laws related to tariff classification which may be used to amend related laws in Korea. Currently, there are no provisions within the HS Nomenclature that classify unmanned autonomous transportation systems and equipments. Although such technologies have yet to be commercially deployed, they are being actively developed globally. Thus, this study aims to classify UATS and suggest appropriate amendments to the new edition of the HS Nomenclature and Korean law. This paper examines advance ruling cases from domestic and foreign HS classification under the revision of the HS Convention and the criteria for the classification of UATS and Domestic Korean and foreign classification case studies were investigated, along with a survey of the literature on UATS, in order to derive reasonable tariff classification criteria and present legislative implications. In conclusion, this study aims to provide legislative recommendations for how to improve the system to apply the revisions to the HS Convention to the domestic Korean statutes.

• 한국전자파학회논문지
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• 제28권9호
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• pp.713-722
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• 2017

미래의 전장에서는 무인 이동체의 역할이 매우 중요할 것으로 예측된다. 최근 사용되는 무인 이동체는 충전과 관리를 위하여 유선의 충전선과 데이터 연결선을 가지고 있다. 하지만 편리성과 안정성을 위하여 무인 이동체의 무선 충전과 무선 데이터 전송을 이용한 무선 전력전달 시스템을 사용하는 것이 요구되어지고 있다. 이 논문에서, 우리는 이러한 요구를 만족시키기 위하여 무인 이동체에 적용 가능한 무선 충전 기술을 연구하였다. 자기장 유한 요소 시뮬레이션을 통해 무인 이동체의 크기와 무인 이동체에서 사용하는 전력을 고려한 송, 수신 코일의 설계를 하였다. 또한, 시뮬레이션 결과를 바탕으로 최적의 코일을 제작하였고, 실험을 통하여 시뮬레이션 결과와 비교하여 검증하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.915-919
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• 2005

It is materialized an unmanned vehicle system as a part of Intelligent Transportation System (ITS) which is a fundamental constituent for unmanned vehicle. Remote control system, monitoring system and remote operating system which are consisted of unmanned vehicle system. Network program by TCP/IP socket, and real-time control & operating controlled by servo-motors from a remote place, those are used to verify safety and stability of the unmanned vehicle system in this research. This unmanned vehicle is divided into two major sections which are an unmanned vehicle part and control station part. The server PC is installed on the unmanned vehicle and a client PC is installed at a remote place, which can control the u manned vehicle. In this research work, main theme is that we experimented and tested to check the speed and utilization of the wireless LAN communication.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.139-139
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• 2000

The subject of this paper is the tole operation for unmanned vehicle. The aim is studied in context of motor control system and algorithms for the mid to low level control of tele operation unmanned vehicle described. Modern, vehicle related researches have been implemented about control, chassis, body and safe쇼 but now is to driving comfort, I.T.S. and human factor, etc. As a result of this fact, unmanned vehicle is main research topic over the world but it is still very expensive and unreasonable. A hierarchical approach is studied in context of motor control system and algorithms for the mid to low level control of tele operation unmanned vehicle described. The real time control and monitoring of longitudinal, lateral, Pitching motion is to be solved by system integration and optimization technique. We show the experimental result about fixed brake range test and acceleration test. And all system is to integrated for driving simulator and unmanned vehicle.

• International Journal of Aeronautical and Space Sciences
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• 제8권2호
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• pp.54-66
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• 2007

Traffic and emergency monitoring systems are essential constituents of Intelligent Transportation System (ITS) technologies, but the lack of traffic monitoring has become a primary weakness in providing prompt emergency services. Demonstrated in numerous military applications, unmanned aerial vehicles (UAVs) have great potentials as a part of ITS infrastructure for providing quick and real-time aerial video images of large surface area to the ground. Despite of obvious advantages of UAVs for traffic monitoring and many other civil applications, it is rare to encounter success stories of UAVs in civil application including transportation. The objective of this paper is to report the outcomes of research supported by the state agency in US to investigate the feasibility of integrating UAVs into urban highway traffic monitoring as a part of ITS infrastructure. These include current technical and regulatory issues, and possible suggestions for a future UAV system in civil applications.

• 대한교통학회지
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• 제28권6호
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• pp.17-24
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• 2010

교통사고로 인한 여러 가지 사회적 문제들로 인해 정부에서는 강력하게 교통사고를 줄이기 위한 여러 가지 정책들을 시행하여 왔다. 이러한 결과들로 인해 최근 들어 교통사고 발생건수 및 사망자 수가 감소추세에 있다. 그러나 이러한 교통사고 감소를 위한 여러 가지 정책들을 시행하기 위해서는 비용이 수반되게 마련이며, 이에 대한 비용 대비 효과 평가도 이루어질 필요가 있다. 본 연구에서는 최근 교통단속에 투자되는 비용 가운데 단속효과가 입증된 무인과속단속시스템에 의한 단속과 교통경찰에 의한 인력단속의 경우를 단속이 없는 경우와 비교하였다. 그 결과 평균속도에서 설치전 조건이 평균속도 82.66km/h, 인력단속 조건이 70.57km/h, 기계적 단속조건이 67.85km/h순으로 높게 나타났고 통계적으로도 유의한 차이가 있었다. 또한 제한속도 위반율에서도 설치전 조건이 65%, 인력단속조건이 32%, 기계적 단속조건이 19%의 순으로 나타났다. 차종별로는 승용차, 승합차, 화물차의 순으로 평균속도 및 위반율이 높았으며, 차로별로는 1차로가 2차로에 비해 높게 나타났다. 이와 같은 결과를 토대로 사고율을 추정하여 투입비용 대비 편익을 측정하였는데 무인과속단속시스템 설치전 조건의 경우와 비교하여 연간비용대비편익을 추정하였다. 그 결과 교통경찰에 의한 인력단속조건의 경우 76,130,590원의 마이너스편익이 발생하였고, 무인과속단속시스템에 의한 기계적 단속의 경우 38,577,670원의 편익이 발생하는 것으로 추정되었다

• 항공우주시스템공학회지
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• 제15권4호
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• pp.64-74
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• 2021

Unmanned Aircraft Systems (UAS) are rapidly emerging not only as a key military power, such as surveillance and reconnaissance for military purposes but also as a new air transportation means in the form of Urban Air Mobility (UAM). Currently, airworthiness certification is carried out focused on the verification of technical standards for flight safety suitability of aircraft design in accordance with the Military Aircraft Flight Safety Certification Act and does not employ the model for operational risk assessment for mission areas and airspace. In this study, in order to evaluate the risk of the mission area from the perspective of the UAS operator, a risk assessment simulation has been conducted by applying the Specific Operations Risk Assessment (SORA) model to the operating environment of the Korean military UAS. Also, the validity of the SORA model has been verified through the analysis of simulation results, and a new application plan for airworthiness certification of the military unmanned aerial system has been presented.

• 대한안전경영과학회지
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• 제24권3호
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• pp.29-37
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• 2022

The development of technology related to the Fourth Industrial Revolution and the growth of the online market due to pandemic are continuing the growth of the logistics market for product delivery. If it is difficult to deliver the product directly to the customer during delivery, storage and delivery using the unmanned courier box are being carried out. However, existing storage boxes are not actively used due to lack of usability even though they have the advantage of storing goods and delivering non-face-to-face. In addition, existing courier boxes are not prepared for cold chain transportation. The unmanned delivery storage device with ICT cold chain technology should be developed to prepare for the transition to non-face-to-face society, to improve logistics efficiency and meet user's requirements. Also, it is necessary to consider the measures to reduce the safety problems that may occur during the use and maintenance of the automatic system. This study conducted a model-based analysis for the development of unmanned delivery storage devices with ICT cold chain technology, and conducted a study to derive the system development specifications that meet the requirements and secure safety and apply them to the development process.