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Enhancing Quadcopter Capabilities via Design and Control- [electronic resource]
Enhancing Quadcopter Capabilities via Design and Control- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214095900
- ISBN
- 9798380619837
- DDC
- 629.8
- 서명/저자
- Enhancing Quadcopter Capabilities via Design and Control - [electronic resource]
- 발행사항
- [S.l.]: : University of California, Berkeley., 2021
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2021
- 형태사항
- 1 online resource(106 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-04, Section: B.
- 주기사항
- Advisor: Mueller, Mark.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2021.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약In recent years, quadcopters have gained remarkable popularity in a wide range of industries. Given that the utility of quadcopters has already been extensively demonstrated, this dissertation explores changes to the design and control of conventional quadcopters which either enable operation in new environments, allow for novel tasks to be performed, or reduce computational hardware requirements.Two novel designs are presented in this dissertation. First, we explore the use of angular momentum to reduce the sensitivity of a vehicle to torque disturbances. We show both theoretically and experimentally how torque disturbance sensitivity monotonically decreases with increasing net angular momentum of the vehicle when using an appropriately designed controller, and discuss how this effect scales with vehicle size. Second, we consider the use of passive (i.e. unactuated) mechanisms to expand the types of tasks a quadcopter can perform. Specifically, we demonstrate how a vehicle with freely rotating arms can change shape mid-flight, allowing for traversal of narrow passageways, simple manipulation, and perching behaviors.Next, two algorithms are presented which enable autonomous flight in known and unknown environments. Both algorithms are focused on improving the time required to check whether a given trajectory collides with the environment, reducing the computational power requirements of onboard computers used the fly the vehicle. The first method is used to quickly determine whether a given trajectory collides with a convex obstacle, enabling the avoidance of both static and dynamic obstacles. The second method allows for operation in previously unseen environments by using depth images from an onboard sensor to represent the environment. Rectangular pyramids are used to partition the free-space of the depth image, which enable highly efficient collision checking between trajectories and the environment.Each proposed design and algorithm is demonstrated experimentally on custom hardware, and relevant code has been made publicly available where appropriate.
- 일반주제명
- Robotics.
- 일반주제명
- Design.
- 일반주제명
- Computer science.
- 키워드
- Aerial vehicles
- 키워드
- Control
- 키워드
- Path planning
- 키워드
- Quadcopters
- 기타저자
- University of California, Berkeley Mechanical Engineering
- 기본자료저록
- Dissertations Abstracts International. 85-04B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2021 us |||||||||||||||c||eng d■001000016931046
■00520240214095900
■006m o d
■007cr#unu||||||||
■020 ▼a9798380619837
■035 ▼a(MiAaPQ)AAI28774410
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a629.8
■1001 ▼aBucki, Nathan Leo.
■24510▼aEnhancing Quadcopter Capabilities via Design and Control▼h[electronic resource]
■260 ▼a[S.l.]:▼bUniversity of California, Berkeley. ▼c2021
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2021
■300 ▼a1 online resource(106 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-04, Section: B.
■500 ▼aAdvisor: Mueller, Mark.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2021.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aIn recent years, quadcopters have gained remarkable popularity in a wide range of industries. Given that the utility of quadcopters has already been extensively demonstrated, this dissertation explores changes to the design and control of conventional quadcopters which either enable operation in new environments, allow for novel tasks to be performed, or reduce computational hardware requirements.Two novel designs are presented in this dissertation. First, we explore the use of angular momentum to reduce the sensitivity of a vehicle to torque disturbances. We show both theoretically and experimentally how torque disturbance sensitivity monotonically decreases with increasing net angular momentum of the vehicle when using an appropriately designed controller, and discuss how this effect scales with vehicle size. Second, we consider the use of passive (i.e. unactuated) mechanisms to expand the types of tasks a quadcopter can perform. Specifically, we demonstrate how a vehicle with freely rotating arms can change shape mid-flight, allowing for traversal of narrow passageways, simple manipulation, and perching behaviors.Next, two algorithms are presented which enable autonomous flight in known and unknown environments. Both algorithms are focused on improving the time required to check whether a given trajectory collides with the environment, reducing the computational power requirements of onboard computers used the fly the vehicle. The first method is used to quickly determine whether a given trajectory collides with a convex obstacle, enabling the avoidance of both static and dynamic obstacles. The second method allows for operation in previously unseen environments by using depth images from an onboard sensor to represent the environment. Rectangular pyramids are used to partition the free-space of the depth image, which enable highly efficient collision checking between trajectories and the environment.Each proposed design and algorithm is demonstrated experimentally on custom hardware, and relevant code has been made publicly available where appropriate.
■590 ▼aSchool code: 0028.
■650 4▼aRobotics.
■650 4▼aDesign.
■650 4▼aComputer science.
■653 ▼aAerial vehicles
■653 ▼aControl
■653 ▼aPath planning
■653 ▼aQuadcopters
■690 ▼a0771
■690 ▼a0389
■690 ▼a0984
■71020▼aUniversity of California, Berkeley▼bMechanical Engineering.
■7730 ▼tDissertations Abstracts International▼g85-04B.
■773 ▼tDissertation Abstract International
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2021
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931046▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
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