Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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Design of Hybrid Communication Structure for Video Transmission in Drone Systems

드론 영상 전송용 하이브리드 통신 구조의 설계

  • Kim, Won (Division of IT Convergence, Woosong University)
  • 김원 (우송대학교 IT융합학부)
  • Received : 2019.10.02
  • Accepted : 2019.11.20
  • Published : 2019.11.28
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Abstract

In modern society drones are actively utilized in the fields of security, defense, agriculture, communication and so on. Smart technology and artificial intelligence software have been developed with convergence, and the field of use is expected to expand further. On the point of the excellent performance of drones one of the essential technologies is the wireless communication that make the ground facility receive the video streaming obtained by the drones in the air. In the research the concept of communication region is proposed to cover the both the low altitude region for Wi-Fi communication and the high altitude region for LTE communication for the sake of video transmission. Also the hybrid communication structure is designed along the proposed concept and the proposed system is implemented as a communication system in the small size which can be mounted in a small size of drone. It is confirmed that the proposed system contains the effectiveness by showing the ability to successfully transmit HD video streaming in the range of 500 meters and the transfer time between two different communication systems is measured in 200msec by the experiments.

현대사회에서 드론은 보안, 국방, 농업, 통신 등의 분야에서 활발하게 사용되고 있다. 스마트 기술, 인공지능 소프트웨어가 융합되어 발전하면서 그 활용 분야는 더 넓어질 것으로 예상된다. 드론이 공중에서 촬영한 영상 스트리밍을 지상 설비에서 수신하는 무선 통신은 드론의 우수한 역할 수행에 있어 필수적인 기술 중에 하나이다. 이 연구에서는 영상 전송을 위하여 WiFi 통신의 저고도 영역과, LTE 통신의 고고도 영역을 모두 다룰 수 있는 통신 영역 개념을 제안한다. 또한 이 개념에 부합하는 하이브리드 통신 구조를 설계하고 제안된 시스템을 소형 드론에 탑재할 수 있는 소형의 크기의 통신 시스템으로 구현하였다. 구현된 시스템은 실험을 통하여 HD급 고화질 영상 스트리밍을 500미터 거리까지 성공적으로 전송할 수 있고, 두 개의 다른 통신 시스템간의 전환시간이 200ms임을 보여 제안된 시스템의 효과성을 확인하였다.

Keywords

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