Haptic control interfaces can significantly improve the quality of teleoperation in robotic and mechatronic systems. However, the required force feedback introduces new challenges when highly constrained environments and systems hinder the use of conventional force sensors. In this article, we propose a haptic control method that provides feedback to the operator when force … [Read more...] about Touching the Sound: Audible Features Enable Haptics for Robot Control
Robot control
Biomimetic Force and Impedance Adaptation Based on Broad Learning System in Stable and Unstable Tasks
This article presents a novel biomimetic force and impedance adaption framework based on the broad learning system (BLS) for robot control in stable and unstable environments. Different from iterative learning control, the adaptation process is realized by a neural network (NN)-based framework, similar to a BLS, to realize a varying learning rate for feedforward force and … [Read more...] about Biomimetic Force and Impedance Adaptation Based on Broad Learning System in Stable and Unstable Tasks
Cable-Driven Parallel Robots: Typical Configurations, Analysis Techniques, and Control Methods
Cable-driven parallel robots (CDPRs) have applications in large workspaces and at high operating speeds, which necessitates considering the mass and elasticity of cables for accurate analyses of kinematics, dynamics, workspace, trajectory planning, and control. In this article, first, the typical CDPR configurations along with their application areas are summarized. Then, … [Read more...] about Cable-Driven Parallel Robots: Typical Configurations, Analysis Techniques, and Control Methods
Safety and Efficiency in Robotics: The Control Barrier Functions Approach
This article aims at presenting an introductory overview of the theoretical framework of control barrier functions (CBFs) and of their application to the design of safety-related controllers for robotic systems. The article starts by describing the basic concepts of CBFs and how they can be used to build optimization problems embedding CBF-based constraints, whose solutions … [Read more...] about Safety and Efficiency in Robotics: The Control Barrier Functions Approach
