ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-01012021-194308


Tipo di tesi
Tesi di laurea magistrale
Autore
LOVECCHIO, ROSSANA
URN
etd-01012021-194308
Titolo
Autonomous behaviour of a six-legged benthic robot for seabed operations
Dipartimento
INGEGNERIA DELL'INFORMAZIONE
Corso di studi
BIONICS ENGINEERING
Relatori
relatore Prof. Calisti, Marcello
Parole chiave
  • robot
  • robotics
  • benthic robot
  • autonomous behavior
  • robotica marina
  • marine robotics
  • engineering
  • ingegneria
  • legged robot
Data inizio appello
12/02/2021
Consultabilità
Non consultabile
Data di rilascio
12/02/2091
Riassunto
This thesis regards the development of a controlling algorithm for a six-legged benthic robot, called SILVER2, that allows it to autonomously move around the seabed and reach targets.
This work starts with the analysis of a simpler dynamic model, the Underwater Single-Leg Inverted Pendulum (USLIP), which is modeled to be the dynamic equivalent of the robot's six legs. The USLIP model is implemented on Simulink to first test its stability in several different conditions, and then to control the single leg in order to follow a predefined path.
Therefore, SILVER2 is simulated on the platform Webots and the same type of control is implemented. Being a more complex structure, a stability problem arises and another parallel control is developed to resolve it. Once the trajectory can be followed steadily, the robot can be used to reach objects in the environment. A computer vision algorithm is used to recognize them and a new control routine takes place to reach them.
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