A method for force-free control is proposed to realize pull-out work by an industrial articulated robot arm. This method achieves not only non-gravity and non-friction motion of an articulated robot arm according to an exerted force but also reflects no change in the structure of the servo controller. Ideal performance of a pull-out work by the force-free control method was assured by means of ...

This paper describes the first prototype of a “Programming by demonstration” (PbD) system for position teaching of a robot manipulator. A new approach for enabling PbD using supervised learning is presented, by connecting a wearable input device for sensing human arm movements to the software controller of a robot arm. The method does not require analytical modelling of either the human arm or ...

recent developments in the area of smart structures indicate that variable geometry / stiffness truss network is of fundamental importance in designing smart transformable structures and systems for space applications. this paper presents the conceptual design and dynamic modeling of a cooperative re-configurabel dual-arm robotic structure called dual-arm cam-lock manipulator. the manipulator i...

The concept of wearability will be recognized very important in future robotics as in computer science. There is a strong possibility that wearable robots suggest a new direction for human-robot interaction. In this paper, we propose RoboWear, a wearable robot that a human operator wears on his arm for the purpose of human-robot interaction. The wearable robot can be used to amplify human power...

This technical report gives an overview of our work on control algorithms dealing with redundant robot systems for achieving human-like motion characteristics. Previously, we developed a novel control law to exhibit humanmotion characteristics in redundant robot arm systems as well as arm-trunk systems for reaching tasks [1], [2]. This newly developed method nullifies the need for the computati...

The robots are interacting with humans in various aspects. Safety issues are increased in various robot applications. Many robot arms have been introduced for safety. The passive compliance methods have faster and high reliability than active methods. In this paper, a new safety mechanism based on passive compliance is proposed. The variable stiffness joint employed spring and roller is economi...

In this paper, an intelligent Active Force Control (AFC) of a single-link Pneumatic Artificial Muscle (PAM) actuated robot arm employing Fuzzy Logic (FL) element has been applied and tested through an experimental study. The robot arm is desired to move along a one radian circular trajectory as a joint angle tracking control in the wake of the introduced disturbances. To demonstrate the practic...

This paper presents a novel robot vision architecture for perceiving generic 3D clothes configurations. Our architecture is hierarchically structured, starting from low-level curvatures, across mid-level geometric shapes & topology descriptions; and finally approaching high-level semantic surface structure descriptions. We demonstrate our robot vision architecture in a customised dual-arm indus...

The human upper limb possesses a high degree of freedom (DOF) and its redundant structure permits greater flexibility in various dexterous manipulations. The simplest structure of a multifingered robot arm is constructed by fixing a robot finger onto the end effector of a robot arm. A robot with such a structure is also called a macro-micro manipulator (Nagai & Yoshigawa, 1994, 1995; Yoshikawa,...

In this study, as an application of robotics in hazardous tasks, a dual arm cooperative robot system is considered. The robot system is consisting of two planar arms; each of them has two degrees of freedom. The robot arms are in a task which requires handling and transporting a load in horizontal plane from its initial position to desired location with reliability. Dynamic equations of the phy...