Experiments on Dextrous Manipulation without Prior Object Models 1

نویسندگان

  • Olac Fuentes
  • Randal C. Nelson
چکیده

In this paper we present a kinematic method for 6-degree-of-freedom manipulation of rigid objects using a dextrous robotic hand. Our method does not require prior models of the objects to be manipulated; all the information needed can be obtained directly from the hand's sensors. The method allows arbitrary (within the robot's physical limits) translations and rotations of the object, and its low computational cost makes real-time performance easy to achieve. We present experimental results of manipulation using the Utah/MIT hand 1, 2], a 16-DOF dextrous manip-ulator, and show that with the addition of a Cartesian controller a high degree of accuracy can be attained.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Experiments on Dextrous Manipulation without Prior Object Models

In this paper we present a kinematic method for 6-degree-of-freedom manipulation of rigid objects using a dextrous robotic hand. Our method requires no prior models of the objects being manipulated, instead it obtains all the information needed directly from the hand's sensors. Its low computational cost makes real-time performance easy to achieve. We present experimental results showing the im...

متن کامل

Acquiring Visual-Motor Models for Precision Manipulation with Robot Hands

Dextrous high degree of freedom (DOF) robotic hands provide versatile motions for fine manipulation of potentially very different objects. However, fine manipulation of an object grasped by a multifinger hand is much more complex than if the object is rigidly attached to a robot arm. Creating an accurate model is difficult if not impossible. We instead propose a combination of two techniques: t...

متن کامل

The Planning and Control of Robot Dextrous Manipultation

Dextrous manipulation is a fundamental problem in the study of multi ngered robotic hands. Given a robotic hand and an object to be manipulated by the hand in an environment lled with obstacles, the main objectives of dextrous manipulation are to have the hand grasp the object and transfer it from a start con guration to a goal con guration without collision. To ful ll such a task in general, w...

متن کامل

Passive Non-Prehensile Manipulation of a Specific Object on Predictable Helix Path Based on Mechanical Intelligence

Object manipulation techniques in robotics can be categorized in two major groups including manipulation with and without grasp. The aim of this paper is to develop an object manipulation method where in addition to being grasp-less, the manipulation task is done in a passive approach. In this method, linear and angular positions of the object are changed and its manipulation path is controlled...

متن کامل

Fast Dextrous Regrasping with Optimal Contact Forces and Contact Sensor-Based Impedance Control

This paper presents an approach to fast object manipulation by dextrous regrasping of multingered hands. The approach is based on a real-time grasping force optimization algorithm (GFO) and a ngertip impedance control scheme. Both the controller and the GFO make use of 6D contact force sensor data at run-time. The latter keeps contact forces as small as possible while considering friction limit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1996