Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Development of CanSat System for Collecting Weather Information With Autorotating Science Payload Ejection Function

자동회전 과학 탑재체 사출 기능을 갖춘 기상정보 수집용 캔위성 체계 개발

  • Kim, Youngjun (Dept. of Electronics and Communication Engineering, Republic of Korea Air Force Academy) ;
  • Park, Junsoo (Dept. of Computer Science, Republic of Korea Air Force Academy) ;
  • Nam, Jaeyoung (Dept. of Computer Science, Republic of Korea Air Force Academy) ;
  • Lee, Junhyuck (Dept. of Computer Science, Republic of Korea Air Force Academy) ;
  • Choi, Yunwon (Dept. of Electronics and Communication Engineering, Republic of Korea Air Force Academy) ;
  • Yoo, Seunghoon (Dept. of Computer Science, Republic of Korea Air Force Academy) ;
  • Lee, Sanghyun (Dept. of Aerospace Engineering, Republic of Korea Air Force Academy) ;
  • Lee, Younggun (Dept. of Electronics and Communication Engineering, Republic of Korea Air Force Academy)
  • Received : 2022.05.03
  • Accepted : 2022.06.07
  • Published : 2022.08.01
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Abstract

This paper deals with the development of CanSat system, which ejects two maple seed-type autorotating science payloads and collects weather information. The CanSat consists of two autorotating science payloads and a container. The container is equipped with devices for launching science payloads and communication with the ground station, and launches science payloads one by one at different designated altitudes. The science payload consists of a space for loading and a large wing, and rotates to generate lift for slowing down the fall speed. Specifically, after being ejected, it descends at a speed of 20 m/s or less, measures the rotation rate, atmospheric pressure, and temperature, and transmits the measured value to the container at a rate of once per second. The communication system is a master-slave structure, and the science payload transmits all data to the master container, which aggregates both the received data and its own data, and transmits it to the ground station. All telemetry can be checked in real time using the ground station software developed in-house. A simulation was performed in the simulation environment, and the performance of the CanSat system that satisfies the mission requirements was confirmed.

본 논문은 단풍나무 씨앗형 자동회전 과학 탑재체 2개를 사출하고 기상정보를 수집하는 임무를 하는 캔위성을 개발하는 내용을 다루고 있다. 캔위성은 2개의 자동회전형 과학 탑재체와 이를 실을 수 있는 캔위성 본체로 구성된다. 캔위성 본체는 과학 탑재체를 사출하기 위한 장치들과 지상국과의 통신을 위한 장치들을 탑재하고, 각기 다른 지정 고도에서 과학 탑재체를 하나씩 사출한다. 과학 탑재체는 큰 날개와 탑재 공간으로 구성되며, 큰 날개는 회전하면서 양력을 발생시켜 낙하 속도를 늦춘다. 구체적으로, 사출된 이후 20m/s 이하의 속도로 하강하며 회전율, 기압과 온도를 측정하고 초당 1회의 속도로 측정값을 캔위성본체로 송신한다. 통신 시스템은 마스터-슬레이브 구조로 과학 탑재체는 모든 데이터를 마스터인 캔위성본체로 송신하고, 캔위성 본체는 수신받은 데이터와 자체 데이터를 종합하여 지상국으로 전송한다. 자체 개발한 지상국 소프트웨어를 이용해 수신하는 모든 데이터를 실시간으로 확인할 수 있다. 시뮬레이션 환경에서 모의실험을 수행했고, 임무 요구조건을 만족하는 캔위성의 성능을 확인할 수 있었다.

Keywords

Acknowledgement

본 연구는 공군사관학교 교육진흥재단의 지원으로 수행되었습니다.

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