• Title/Summary/Keyword: Portable Ground Control System

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Development of Portable Ground Control System for Operation of Unmanned Aerial Vehicle (무인항공기 운용을 위한 이동형 지상제어 시스템 개발)

  • Lee, Jang-Ho;Ryu, Hyeok;Kim, Jae-Eun;Ahn, Iee-Ki
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.32 no.10
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    • pp.127-133
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    • 2004
  • This paper described development of the portable ground control system(PGCS) for unmanned aerial vehicle. In the design of GCS, it upload mission planning that aircraft has to perform and has to receive position, attitude, state, navigation information all about the aircraft. Aircraft states and trajectory are displayed using this system on line. The PGCS is composed of commercial notebook computer, RF modem for communication between aircraft and PGCS, input/output board, remote control receiver, switches and lamps. Performance of this system is verified by flight test of small unmanned aerial vehicle.

Development of a Portable Multi-sensor System for Geo-referenced Images and its Accuracy Evaluation (Geo-referenced 영상 획득을 위한 휴대용 멀티센서 시스템 구축 및 정확도 평가)

  • Lee, Ji-Hun;Choi, Kyoung-Ah;Lee, Im-Pyeong
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.6
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    • pp.637-643
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    • 2010
  • In this study, we developed a Portable Multi-sensor System, which consists of a video camera, a GPS/MEMS IMU and a UMPC to acquire video images and position/attitude data. We performed image georeferencing based on the bundle adjustment without ground control points using the acquired data and then evaluated the effectiveness of our system through the accuracy verification. The experimental results showed that the RMSE of relative coordinates on the ground point coordinates obtained from our system was several centimeters. Our system can be efficiently utilized to obtain the 3D model of object and their relative coordinates. In future, we plan to improve the accuracy of absolute coordinates through the rigorous calibration of the system and camera.

Development of a Monitoring Equipment of Current and Potential on Power Transmission Line for 66kV

  • Nisiyama, Eiji;Kuwanami, Kenshi;Kawano, Mitsunori;Matsuda, Toyonori;Oota, I.
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.41-44
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    • 2003
  • We propose portable equipment that monitors current and voltage of high-potential power transmission lines. In the equipment, a current and voltage sensor are attached to an insulator that supports a power transmission line: A clamped to the power line and the detected current signal is transmitted to the ground station by a wireless optical link using transmission line is detected by a high resistance element, zinc oxide (ZnO). That acts as a potential divider between the power line and ground. We make an experimental device for 66kV power line and demonstrate that it can monitor currents proposed equipment is small-sized, light, and inexpensive in comparison with the conventional CT (current transformer) and PT (potential transformer) since it does not require high potential insulators and magnetic cores, further, the equipment is easily installed owing to its small size and its simple structure.

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Hazardous Gas Detecting and Capturing Robot (유해가스 탐지·포집 로봇)

  • Shin, Juseong;Pyo, Juhyun;Lee, Meungsuk;Park, Sanghyun;Park, Seoyeon;Suh, Jinho;Jin, Maolin
    • Journal of Drive and Control
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    • v.19 no.2
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    • pp.27-35
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    • 2022
  • This study presents one man-portable, hazardous gas detecting and capturing robot. The robot can be fit in the trunk of a sedan car. Its weight is less than 20 kg. A dedicated gas intake mechanism is proposed for the robot. The robot can detect and capture gases at a height of 2 m above the ground, although the height of the robot is about 0.2 m. The performance of the gas intake mechanism is verified through computational fluid dynamics (CFD) analysis and experiments. Its gas detecting signals were acquired by serial communication and processed in Robot Operating System (ROS) based control software. The proposed robot can successfully move on rough terrains such as stairs, sand roads, and rock roads.

A Study on the Possibility of Securing Command of the Air in Local War (지상군의 국지제공권 확보 가능성 연구)

  • Lee, Chang In;Jung, Min Sup;Cho, Sang Keun;Park, Sang-Hyuk
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.4
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    • pp.173-179
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    • 2022
  • Through the 2014 Donbas conflict and the 2022 Ukraine-Russia war, we are experiencing that the command of the air is no longer only secured by the Air Force. Long-range surveillance reconnaissance and strikes carried out by the Air Force could be replaced by drones and missiles, and the enemy's aerial attacks could be controlled by air defense systems such as Panchir and portable anti-aircraft missiles, allowing ground forces to carry out maneuvers freely. In other words, it is much more advantageous for the air force and the navy to take control of the air through long-distance operations, and the ground forces should support them. Therefore, this study aims to consider the cost-effectiveness aspect of the delivery command of the air; it provides implications for quickly responding to enemy air attacks by developing the air defense weapon system, drones, missiles, precision-guided munitions, etc rather than focusing on expensive fighter jets.