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Sensing, Actuation, and Intelligence Integration in Micro-Robotics
Sensing, Actuation, and Intelligence Integration in Micro-Robotics
Sensing, Actuation, and Intelligence Integration in Micro-Robotics

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105506
ISBN  
9798263327149
DDC  
600
저자명  
Hao, Zhijian.
서명/저자  
Sensing, Actuation, and Intelligence Integration in Micro-Robotics
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
275 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Ansari, Azadeh.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약The field of micro-robotics has seen significant advancements in the recent years, including innovative actuation mechanisms for sub-millimeter robots, emergent behaviors in miniaturized robot swarms, and promising applications in critical industries such as healthcare, environmental surveying, defense, and security, among others. Despite the promising applications, the robot miniaturization faces additional challenges due to constraints on size, weight, power and cost (SWaP-C).This work focuses on enabling technologies to enhance micro-robot performance and system integration across the domains of mechanical engineering, electrical engineering, physics, chemistry, and computer science. Four projects are presented, each showcasing unique implementations of micro-robots with advancements in their sensing, actuation, intelligence and swarm capabilities. From the smallest 3-mm robots with no on-board systems to fully integrated robots measuring a few centimeters in size aiming to explore the extraterrestrial ocean, the work demonstrates the trade-offs between form factors and functionalities and pathways to meaningful integration at different scales.Collective behaviors enable micron- and millimeter-scale micro-robots to coordinate and carry out tasks beyond individual's capacity. Such behaviors are often preconditioned on the formation of high-density aggregations of the robot swarm. By leveraging the physics phenomenon of motility-induced phase separation (MIPS), we demonstrated for the first time the control of the degree of aggregation in a swarm of 300 3-mm microrobots without any integrated sensing or communication capabilities. The robot swarm is uniformly controlled by global vibration actuation frequency and magnitude, yet, due to changes in motion characterization and collision physics, the robots can be controlled to either disperse for coverage of the domain or aggregate into clusters. This project delves into the fundamental physics of controlling micro-swarm aggregation, which is broadly applicable to various micro-robot designs.Besides using global actuation control for inducing emergent swarm behaviors in microrobots, on-board piezoelectric thin-film actuators are integrated on individual micro-robots at a few centimeter scale. These micro-robots demonstrated a novel single-actuator steering mechanism based on the concept of mechanical resonance. The integrated thin-film piezoelectric actuator is used to induce different frequencies and excite various resonance modes achieved by asymmetrical robot design, allowing for frequency-controlled motion in the 2-dimensional plane. Compared to differential drive systems that use multiple motors or actuators, the novel use of a single actuator achieves the same functionality with scalable miniaturization prospects.The adoption of the single piezoelectric actuator steering mechanism preserves the precious space for critical integration of subsystems such as sensing and intelligence. In a 3-cm robot, the steering mechanism is accompanied by an autonomous vision system enabled by the integration of a camera and convolution neural network (CNN) based computer vision intelligence, presenting the first implementation of a fully autonomous micro-robot capable of searching and tracking targets at this scale.The final project intensifies the focus on system integration within micro-robotic platforms and their real-life applications. Developed for potential extraterrestrial oceanographic exploration on Jupiter's moon Europa, the micro swimming robot swarm is equipped with on-board communication, power, actuation, computation, and sensing subsystems. To minimize payload impact, these micro-robots are a few centimeters long, posing significant integration challenges. A custom multi-modal sensing module, developed using microelectromechanical system (MEMS) technology, equips the micro-robot with the ability to sense temperature, conductivity, pressure, pH, and biochemical markers simultaneously. Together with the swarm implementation, this sensing module aims to provide comprehensive data on Europa's ocean environment, assisting scientific understanding and the search for extraterrestrial life.In conclusion, this thesis advances the field of micro-robotics through innovative developments in actuation, sensing, and intelligence across various scales of micro-robots. The integration of multidisciplinary technologies has resulted in highly functional micro-robots with the potential for groundbreaking applications. Future research can build on these findings, aiming to overcome the challenges of SWaP-C constraints, further enhancing the capabilities and applications of micro-robots.
일반주제명  
Friction
일반주제명  
Microelectromechanical systems
일반주제명  
Computer vision
일반주제명  
Swimming
일반주제명  
Neural networks
일반주제명  
Robots
일반주제명  
Motility
일반주제명  
Vibration
일반주제명  
Robotics
일반주제명  
Computer science
일반주제명  
Electrical engineering
일반주제명  
Mechanical engineering
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■1001  ▼aHao,  Zhijian.
■24510▼aSensing,  Actuation,  and  Intelligence  Integration  in  Micro-Robotics
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a275  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Ansari,  Azadeh.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aThe  field  of  micro-robotics  has  seen  significant  advancements  in  the  recent  years,  including  innovative  actuation  mechanisms  for  sub-millimeter  robots,  emergent  behaviors  in  miniaturized  robot  swarms,  and  promising  applications  in  critical  industries  such  as  healthcare,  environmental  surveying,  defense,  and  security,  among  others.  Despite  the  promising  applications,  the  robot  miniaturization  faces  additional  challenges  due  to  constraints  on  size,  weight,  power  and  cost  (SWaP-C).This  work  focuses  on  enabling  technologies  to  enhance  micro-robot  performance  and  system  integration  across  the  domains  of  mechanical  engineering,  electrical  engineering,  physics,  chemistry,  and  computer  science.  Four  projects  are  presented,  each  showcasing  unique  implementations  of  micro-robots  with  advancements  in  their  sensing,  actuation,  intelligence  and  swarm  capabilities.  From  the  smallest  3-mm  robots  with  no  on-board  systems  to  fully  integrated  robots  measuring  a  few  centimeters  in  size  aiming  to  explore  the  extraterrestrial  ocean,  the  work  demonstrates  the  trade-offs  between  form  factors  and  functionalities  and  pathways  to  meaningful  integration  at  different  scales.Collective  behaviors  enable  micron-  and  millimeter-scale  micro-robots  to  coordinate  and  carry  out  tasks  beyond  individual's  capacity.  Such  behaviors  are  often  preconditioned  on  the  formation  of  high-density  aggregations  of  the  robot  swarm.  By  leveraging  the  physics  phenomenon  of  motility-induced  phase  separation  (MIPS),  we  demonstrated  for  the  first  time  the  control  of  the  degree  of  aggregation  in  a  swarm  of  300  3-mm  microrobots  without  any  integrated  sensing  or  communication  capabilities.  The  robot  swarm  is  uniformly  controlled  by  global  vibration  actuation  frequency  and  magnitude,  yet,  due  to  changes  in  motion  characterization  and  collision  physics,  the  robots  can  be  controlled  to  either  disperse  for  coverage  of  the  domain  or  aggregate  into  clusters.  This  project  delves  into  the  fundamental  physics  of  controlling  micro-swarm  aggregation,  which  is  broadly  applicable  to  various  micro-robot  designs.Besides  using  global  actuation  control  for  inducing  emergent  swarm  behaviors  in  microrobots,  on-board  piezoelectric  thin-film  actuators  are  integrated  on  individual  micro-robots  at  a  few  centimeter  scale.  These  micro-robots  demonstrated  a  novel  single-actuator  steering  mechanism  based  on  the  concept  of  mechanical  resonance.  The  integrated  thin-film  piezoelectric  actuator  is  used  to  induce  different  frequencies  and  excite  various  resonance  modes  achieved  by  asymmetrical  robot  design,  allowing  for  frequency-controlled  motion  in  the  2-dimensional  plane.  Compared  to  differential  drive  systems  that  use  multiple  motors  or  actuators,  the  novel  use  of  a  single  actuator  achieves  the  same  functionality  with  scalable  miniaturization  prospects.The  adoption  of  the  single  piezoelectric  actuator  steering  mechanism  preserves  the  precious  space  for  critical  integration  of  subsystems  such  as  sensing  and  intelligence.  In  a  3-cm  robot,  the  steering  mechanism  is  accompanied  by  an  autonomous  vision  system  enabled  by  the  integration  of  a  camera  and  convolution  neural  network  (CNN)  based  computer  vision  intelligence,  presenting  the  first  implementation  of  a  fully  autonomous  micro-robot  capable  of  searching  and  tracking  targets  at  this  scale.The  final  project  intensifies  the  focus  on  system  integration  within  micro-robotic  platforms  and  their  real-life  applications.  Developed  for  potential  extraterrestrial  oceanographic  exploration  on  Jupiter's  moon  Europa,  the  micro  swimming  robot  swarm  is  equipped  with  on-board  communication,  power,  actuation,  computation,  and  sensing  subsystems.  To  minimize  payload  impact,  these  micro-robots  are  a  few  centimeters  long,  posing  significant  integration  challenges.  A  custom  multi-modal  sensing  module,  developed  using  microelectromechanical  system  (MEMS)  technology,  equips  the  micro-robot  with  the  ability  to  sense  temperature,  conductivity,  pressure,  pH,  and  biochemical  markers  simultaneously.  Together  with  the  swarm  implementation,  this  sensing  module  aims  to  provide  comprehensive  data  on  Europa's  ocean  environment,  assisting  scientific  understanding  and  the  search  for  extraterrestrial  life.In  conclusion,  this  thesis  advances  the  field  of  micro-robotics  through  innovative  developments  in  actuation,  sensing,  and  intelligence  across  various  scales  of  micro-robots.  The  integration  of  multidisciplinary  technologies  has  resulted  in  highly  functional  micro-robots  with  the  potential  for  groundbreaking  applications.  Future  research  can  build  on  these  findings,  aiming  to  overcome  the  challenges  of  SWaP-C  constraints,  further  enhancing  the  capabilities  and  applications  of  micro-robots.
■590    ▼aSchool  code:  0078.
■650  4▼aFriction
■650  4▼aMicroelectromechanical  systems
■650  4▼aComputer  vision
■650  4▼aSwimming
■650  4▼aNeural  networks
■650  4▼aRobots
■650  4▼aMotility
■650  4▼aVibration
■650  4▼aRobotics
■650  4▼aComputer  science
■650  4▼aElectrical  engineering
■650  4▼aMechanical  engineering
■690    ▼a0771
■690    ▼a0800
■690    ▼a0984
■690    ▼a0544
■690    ▼a0548
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360319▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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