• Title, Summary, Keyword: Hover Drones

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Study on Exploration Method of Seabed Around Heuksando Using Hover Drones (수면호버링 드론을 이용한 흑산도 해저지형 탐사 기법 연구)

  • Kim, Hyeong-Gyun;Lee, Young-suk
    • Journal of Korea Multimedia Society
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    • v.23 no.1
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    • pp.102-110
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    • 2020
  • This study covers exploration of seabed around Heuksando Island using hover drones. To do so, we inspected the terrain of the island and set autonomous flight waypoints on each area of the island's shores. Next, we designated seabed scan radius for drones. Then the drones fitted with laser sensor hover autonomously on their assigned area and acquire seabed data. Finally, we match the seabed data on all areas according to GPS. Our final goal is to make immersive VR maritime cultural map based on 『Jasan Urbo』.

Hovering System for Autonomous Flight of Multi-copter (멀티콥터의 자율비행을 위한 호버링 시스템)

  • Kim, Hyung-Su;Park, Byeong-Ho;Han, Young-Hwan
    • 한국정보기술학회논문지
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    • v.16 no.12
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    • pp.49-56
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    • 2018
  • As the era of the 4th industrial revolution comes, there is a growing interest in the use of UAVs. While various technologies are being developed using drones, controlling flight of drones is the most basic. Hovering control is essential in order to enable autonomous flight, especially during flight control of drones. In this paper, we design drones based on ATmega2560, Sonar, Optical Flow, and acceleration / gyro 6 axis sensor for drones hovering control, and developed horizontal control, altitude control, position tracking and fixed algorithm based on PID control. In this research, in order to measure the objective result of the drone, keeping the altitude immediately after the drone takes off according to the time, measure the movement value until the position is fixed and stable hovering is maintained and compared analyzed. Experimental results show that the drones can stably hover within 4cm horizontal and 2cm vertical from 50cm above the reference coordinates.

A Study on Flight Stabilization of Drones by Gyro Sensor and PID Control (자이로 센서와 PID 제어를 이용한 드론 비행 안정화에 관한 연구)

  • Yoon, Dan-Bee;Lee, Kyu-Yeul;Han, Sang-Gi;Kim, Yong-Hun;Lee, Seung-Dae
    • The Journal of the Korea institute of electronic communication sciences
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    • v.12 no.4
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    • pp.591-598
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    • 2017
  • The changes of technology and the size of markets for unmaned aerial vehicle are getting bigger presently. Damage happens because of user's poor operation since accesses to the drones are easy. To minimize the damage, drone's stabilized flight skills are required, and controlling the motor to balanced speed is also needed. Thus, the essay shows that we use Arduino as a main control device for controlling a drone, and used acceleration sensor and gyro sensor for the drone stabilization. Also, we made it able to hover at a certain height by using a sonar sensor. We also controlled a drone by using an Android application, and made the drone hover stably at 0~2 meters.

Developed a test rig for studying the hover performance of a coaxial propeller (동축반전 프로펠러의 제자리 비행 성능연구를 위한 시험장치 개발)

  • Song, Youn-Ha;Song, Jae-Rim;Kim, Deog-Kowan
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • pp.560-562
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    • 2017
  • This paper presents the development and test results of a test rig for confirming the hover performance of the coaxial propeller which is applied to the drone in order to carry out the mission that requires high payload such as the development of the courier drones. the performance of each propeller was measured by varying the thrust and torque according to the H/D ratio. the Thrust sensor and torque sensor were used to measure the thrust and torque generated when the propeller rotated, and a photo sensor was used to measure the rpm. it used the data acquisition system to acquire data from each sensor, and used the Labview softwaer to control data storage, monitoring and BLDC motor control. In the test, each propeller meansured the figure of mefit according to the chansge of the interval at the same rpm.

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A Study on the Flight Safety Test of Drones for the Establishment of Toy Drone Safety Standards (완구용 드론 안전기준 재정을 위한 드론의 비행 안전성 테스트 연구)

  • Jin, Jung-Hoi;Kim, Gyou-Beom;Jin, Sae-Young
    • Journal of Convergence for Information Technology
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    • v.9 no.12
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    • pp.141-146
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    • 2019
  • Economic analysis predicts that the drone market will grow, and the growth of the toy and hobby drone market is expected to gradually expand. Drone expectations are rising due to the net economic function of drone market growth, but accidents due to improper management and operations are also increasing. The difference in toy drone performance is incomparably small compared to industrial drone performance, but the ordinary buyer can not know whether the difference can cause an accident during use. The toy drones used in this study were obtained from KC and CE certification, and 20 kinds of drones were used. The flight time ranged from a minimum of 3 minutes to a maximum of 12 minutes, and the control distance ranged from a minimum of 20m to a maximum of 380m. Therefore, it is necessary to secure product safety through sampling inspection of the radio wave output of toy drones, and it is also necessary to mount an algorithm that automatically lowers the altitude or hover when exceeding the limit flight distance. For future research, we will build data to establish toy drone safety standards through a altitude testing and impact testing of toy drone.