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Probability-Based Target Search Method by Collaboration of Drones with Different Altitudes

고도를 달리하는 드론들의 협력에 의한 확률기반 목표물 탐색 방법

  • Ha, Il-Kyu (Department of Computer Engineering, Kyungil University)
  • Received : 2017.10.06
  • Accepted : 2017.10.24
  • Published : 2017.12.31

Abstract

For the drone that is active in a wide search area, the time to grasp the target in the field of applications such as searching for emergency patients, monitoring of natural disasters requiring prompt warning and response, that is, the speediness of target detection is very important. In the actual operation of drone, the time for target detection is highly related to collaboration between drones and search algorithm to efficiently search the navigation area. In this research, we will provide a search method with cooperation of drone based on target existence probability to solve the problem of quickness in drone target search. In particular, the proposed method increases the probability of finding a target and shorten the search time by transmitting high-altitude drone search results to a low-altitude drone after searching first and performing more precise search. We verify the performance of the proposed method through several simulations.

넓은 탐색영역에서 활동하는 드론에서 신속한 처치를 요하는 응급환자의 탐색, 신속한 경보와 대응을 요하는 자연재해의 감시와 같은 응용 분야에서 목표물 파악의 시간(time), 즉 신속성의 문제는 매우 중요한 문제가 된다. 드론의 실제 운영에 있어서 목표물을 파악하는 시간은 탐색 영역을 효율적으로 탐색하기 위한 탐색 알고리즘 및 드론 간의 협업과 매우 연관성이 깊다. 따라서 본 연구에서는 드론을 이용한 목표물 탐색에 있어서 신속성의 문제를 해결하기 위하여, 고도를 달리하는 드론들의 협력에 의한 확률기반 목표물 탐색 방법을 제안한다. 특히 제안한 방법은 고(高)고도 드론이 우선 탐색을 실시하고, 탐색 결과를 저(低)고도 드론에 전달하여 보다 정밀한 탐색을 함으로써 탐색 시간을 줄이고 목표물 발견의 확률을 높이는 방법이다. 시뮬레이션을 통하여 제안된 방법의 성능을 분석한다.

Keywords

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