• Title/Summary/Keyword: unmanned control system

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A Study on the System Configuration and Communication Equipment Operation for Mission and Control of Small UAV (소형 무인항공기의 임무 및 제어를 위한 시스템 구성과 통신 장비 운용에 대한 연구)

  • Ha, Young-Seok
    • Journal of Convergence for Information Technology
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    • v.9 no.11
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    • pp.118-124
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    • 2019
  • As Unmanned Aerial Vehicles technology has been widespread, various types of unmanned aircraft and mission equipment have been developed in line with mission diversification. Especially in Korea, small unmanned aerial vehicles have been actively developed. In addition, flight control system and mission equipment interface system for effective control of small unmanned aerial vehicles, efficient communication system configuration and operation for transmission to ground operated systems by processing data are required. This paper addresses efficient system structure and operation of communication equipment for missions and control of small unmanned aerial vehicles.

Development of Low-Cost Automatic Flight Control System for an Unmanned Target Drone (무인표적기용 저가형 자동비행시스템 개발)

  • Lee, Jang-Ho;Ryu, Hyeok;Kim, Jae-Eun;Ahn, Iee-Ki
    • Journal of Advanced Navigation Technology
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    • v.8 no.1
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    • pp.19-26
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    • 2004
  • This paper deals with the automatic flight control system for an unmanned target drone which is operated by an army as an anti-air gun shooting training. By automation of unmanned target drone that is manually operated by external pilot, pilot can reduce workload and an army can reduce the budget. Most UAVs which are developed until today use high-cost sensors as AHRS and IMU to measure the attitude, but those are contradictory for the reduction of budget. This paper says the development of low-cost automatic flight control system which makes possible of automatic flight with low-cost sensors. We have developed the integrated automatic flight control system by integrating electricity module, switching module, monitoring module and RC receiver as an one module. We also prove the performance of automatic flight control system by flight test.

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Study on Unmanned Hybrid Unmanned Surface Vehicle and Unmanned Underwater Vehicle System

  • Jin, Han-Sol;Cho, Hyunjoon;Lee, Ji-Hyeong;Jiafeng, Huang;Kim, Myung-Jun;Oh, Ji-Youn;Choi, Hyeung-Sik
    • Journal of Ocean Engineering and Technology
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    • v.34 no.6
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    • pp.475-480
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    • 2020
  • Underwater operating platforms face difficulties regarding power supply and communications. To overcome these difficulties, this study proposes a hybrid surface and underwater vehicle (HSUV) and presents the development of the platform, control algorithms, and results of field tests. The HSUV is capable of supplying reliable power to the unmanned underwater vehicle (UUV) and obtaining data in real time by using a tether cable between the UUV and the unmanned surface vehicle (USV). The HSUV uses global positioning system (GPS) and ultra-short base line sensors to determine the relative location of the UUV. Way point (WP) and dynamic positioning (DP) algorithms were developed to enable the HSUV to perform unmanned exploration. After reaching the target point using the WP algorithm, the DP algorithm enables USV to maintain position while withstanding environmental disturbances. To ensure the navigation performance at sea, performance tests of GPS, attitude/heading reference system, and side scan sonar were conducted. Based on these results, manual operation, WP, and DP tests were conducted at sea. WP and DP test results and side scan sonar images during the sea trials are presented.

A Hovering Control of an Unmanned Helicopter Using Fuzzy Rules (Fuzzy규칙을 사용한 무인헬리콥터 호버링 제어)

  • Chae, H.S.;Chon, J.C.;Kim, B.S.;Kim, H.S.
    • Proceedings of the KIEE Conference
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    • 1998.07b
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    • pp.525-527
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    • 1998
  • The fuzzy-based autonomous position control system for hovering of an unmanned helicopter has been developed. An unmanned helicopter Is flying vehicle which can aviate freely even at narrow or hazardous space. The bottleneck of the full utilization of the unmanned helicopter is mainly on the control difficulty caused from its nonlinear and unstable characteristics. This paper presents a Fuzzy control technique to have the unmanned helicopter perform hovering. Experimental results of real unmanned helicopter control are included.

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Design of Satellite System for the Back-up System of Unmanned Control Plant

  • Chung, Kee-Heon;Yoon, Young-Hwan;Byun, Doo-Gyoon
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.170.4-170
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    • 2001
  • Safety and confidence of the communications network is the main purpose for the unmanned control systems, in terms of appling a satellite communications network to the water treatment and supply plant communication system. Since the unmanned control systems were applied in the industrial site, the lack of confidence on the communications network has been presented continuously as a main problem for the unmanned and automation systems. Therefore, satellite communications network was presented as one of the methods to solve this problem, supporting the wire used telecommunication. In addition to the safety of a communications network, there is the retrenchment of expenditure. This dual communications network has ...

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Design of Multiple Channel Wireless Remote Control System for Unmanned Vehicle (무인차량용 다중채널 무선원격 제어시스템의 설계)

  • Kim, Jin-Kwan;Ryoo, Young-Jae
    • Journal of the Korean Institute of Intelligent Systems
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    • v.24 no.5
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    • pp.489-494
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    • 2014
  • In this paper, a design of multiple channel wireless remote control system for unmanned vehicle is proposed. One of serious problems of the previous wireless remote control system is that it does not work when a control channel is damaged in case of emergency because it's composed of single control channel. Therefore, we propose the multiple channel wireless remote system which is composed of a portable wireless remote controller and a stationary wireless remote controller. The portable wireless remote controller and stationary wireless remote controller are designed and the multiple channel wireless remote control system for unmanned vehicles in developed. By applying to the unmanned vehicle to check its performance. The wireless remote control system is tested. Emergency stop using the portable wireless remote controller is tested when the stationary wireless remote controller is damaged. Also, emergency stop using the stationary wireless remote controller is tested when the portable wireless remote controller is damaged. The result of emergency stop test shows satisfied performance.

Development of Flight Control Application for Unmanned Aerial Vehicle Employing Linux OS (리눅스 기반 무인항공기 제어 애플리케이션 개발)

  • Kim Myoung-Hyun;Moon Seungbin;Hong Sung Kyung
    • Journal of Institute of Control, Robotics and Systems
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    • v.12 no.1
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    • pp.78-84
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    • 2006
  • This paper describes UAV (Unmanned Aerial Vehicle) control system which employs PC104 modules. It is controlled by application program based on Linux OS. This application consists of both Linux device driver in kernel-space and user application in user-space. In order to get data required in the unmanned flight, external devices are connected to PC104 modules. We explain how Linux device drivers deal with data transmitted by external devices and we account for how the user application controls UAV on the basis of data processed in the device driver as well. Furthermore we look into the role of GCS (Ground Control Station) which is to monitor the state of UAV.

Development of an Intelligent Unmanned Vehicle Control System (지능형 무인자동차 제어시스템 개발)

  • Kim, Yoon-Gu;Lee, Ki-Dong
    • IEMEK Journal of Embedded Systems and Applications
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    • v.3 no.3
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    • pp.126-135
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    • 2008
  • The development of an unmanned vehicle basically requires the robust and reliable performance of major functions which include global localization, lane detection, obstacle avoidance, path planning, etc. The implementation of major functional subsystems are possible by integrating and fusing data acquired from various sensory systems such as GPS, vision, ultrasonic sensor, encoder, and electric compass. This paper focuses on implementing the functional subsystems, which are designed and developed by a graphical programming tool, NI LabVIEW, and also verifying the autonomous navigation and remote control of the unmanned vehicle.

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Development of System Architecture and Communication Protocol for Unmanned Ground Vehicle (무인자율주행차량의 시스템 아키텍쳐 및 통신 프로토콜 설계)

  • Moon, Hee-Chang;Woo, Hoon-Je;Kim, Jung-Ha
    • Journal of Institute of Control, Robotics and Systems
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    • v.14 no.9
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    • pp.873-880
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    • 2008
  • This paper deals with the peer-to-peer data communication to connect each distributed levels of developed unmanned system according to the JAUS. The JAUS is to support the acquisition of unmanned system by providing a mechanism for reducing system life-cycle costs. Each of distributed levels of the JAUS protocol divides into a system, some of subsystems, nodes and components/instances, each of which may be independent or interdependence. We have to distribute each of the levels because high performance is supported in order to create several sub-processor computing data in one processor with high CPU speed performance. To complement such disadvantage, we must think the concept that a distributed processing agrees with separating each of levels from the JAUS protocol. Therefore, each of distributed independent levels send data to another level and then it has to be able to process the received data in other levels. So, peer-to-peer communication has to control a data flow of distributed levels. In this research, we explain each of levels of the JAUS and peer-to-peer communication structure among the levels using our developed unmanned ground vehicle.

An obstacle avoidance system of an unmanned aerial vehicle using a laser range finder

  • Kim, Hyun;Miwa, Masafumi;Shim, Joonhwan
    • Journal of Advanced Marine Engineering and Technology
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    • v.37 no.7
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    • pp.737-742
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    • 2013
  • Recently, unmanned aircrafts for safe measurement in hazardous locations have been developed. In a method of operation of unmanned aircraft vehicles (UAV), there are two methods of manual control and automatic control. Small UAVs are used for low altitude surveillance flights where unknown obstacles can be encountered. Obstacle avoidance is one of the most challenging tasks which the UAV has to perform with high level of accuracy. In this study, we used a laser range finder as an obstacle detector in automatic navigation of unmanned aircraft to patrol the destination automatically. We proposed a system to avoid obstacles automatically by measuring the angle and distance of the obstacle using the laser range finder.