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Author: | Zebenay, Melak Mekonen |
Title: | Manipulator control for physical astronaut-robot interaction |
Publication type: | Master's thesis |
Publication year: | 2009 |
Pages: | 62 s. + liitt. Language: eng |
Department/School: | Automaatio- ja systeemitekniikan laitos |
Main subject: | Automaatiotekniikka (Aut-84) |
Supervisor: | Halme, Aarne ; Hyyppä, Kalevi |
Instructor: | Heikkilä, Seppo |
Electronic version URL: | http://urn.fi/URN:NBN:fi:aalto-201203071286 |
OEVS: | Electronic archive copy is available via Aalto Thesis Database.
Instructions Reading digital theses in the closed network of the Aalto University Harald Herlin Learning CentreIn the closed network of Learning Centre you can read digital and digitized theses not available in the open network. The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/ You can read theses on the Learning Centre customer computers, which are available on all floors.
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Location: | P1 Ark TKK 6582 | Archive |
Keywords: | impedance control admittance control position control |
Abstract (eng): | The future of human-robot interaction applications is highly dependent on the capability to perform safe and efficient physical interaction using the robot's manipulators with a human. Even though the optimal use of Human-Robot Interaction (HRI) is a challenging problem, it can improve the quality and efficiency of the task execution since humans and robots are both able to perform certain tasks in some situations better than the others. WorkPartner, TKK's mobile service robot, has no support for manipulator control system for the purpose of safe human-robot physical interaction application. Additionally, the existing manipulator control system has no position controller to he upgraded for human-robot physical interaction applications. This thesis addresses those problems by developing the compliance control capabilities of the WorkPartner manipulator. First, the state-of-the-art of physical human robot interaction is presented focusing on commonly used manipulator control algorithms, such as stiffness control and impedance control as well as force/torque sensors, such as the six-axis force/torque sensor and motor current sensor. Second, a manipulator control algorithm is suggested based on admittance control. These algorithms is implemented on the WorkPartner simulator and on the WorkPartner manipulator to examine the four selected manipulator behavior modes which are follow movement, hold position, adapt movement and push with force. The thesis test results show that selected admittance based manipulator control algorithm is capable to provide all the four examined manipulator behaviour modes. The thesis is part of the SpacePartner project which is a co-sponsored PhD project of the European Space Agency (ESA) and the Helsinki University of Technology (TKK). |
ED: | 2009-09-09 |
INSSI record number: 38305
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