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This paper presents a new variable admittance control scheme for improving physical human-robot interaction. For achieving effective assistance, an intuitive cooperation must be achieved by the human operator, in which the detection of the human inference is required. The proposed controller employs a new algorithm for inferring human intention, i.e., acceleration or deceleration, by monitoring the...
In contrast to precise position control of the robot arms and manipulators, the force control has been studied recently. The robust position control does not allow the robots to share the same space with humans because the robots faithfully follow the position command, and it may lead to break the contacted environments. The impedance and compliance control could set impedances of robots so that the...
In-circuit tests play a key role in manufacturing electronic devices with a high level of reliability. One of the most flexible technology for the tests is based on flying probes, in which a set of conductive needles is automatically positioned on multiple test points of the device under test. The probes are controlled at high speed within the working space, to increase the production rate, Position...
This paper aims to develop the method for identifying human and environmental impedances with information in the frequency domain by using bilateral control system. In the conventional method, a sinusoidal wave is added to the common mode of bilateral control system, however, this method cannot extract haptic information in frequency domain. Human impedances are assumed to change every moment, and...
Wireless bilateral control based haptic teleoperation is a potential and challenging technique that extends human beings' sensing to a remote environment. However, communication delay in a bilateral control system directly influences the performance and even produces instability. This paper presents a stable and high performance bilateral control with a switching algorithm. This proposal uses the...
Precise force control and position control is essential for many robotic applications. During unilateral or bilateral object handling remote applications, human operators apply excess forces on the actuators with the intention of better grip and it is possible to damage the handled objects. This paper proposes position control and force control techniques when human applies excess force. The controllers...
This paper proposes the improvement method of operability in a bilateral control by using visual information. The bilateral control system consists of a master system which is manipulated by the operator and a slave system which contacts remove environment. Considering the actual use of the bilateral control, the operator manipulates the master system while watching the visual information from the...
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