The DLR bimanual haptic device with optimized workspace

This article accompanies a video that presents a bimanual haptic device composed of two DLR/KUKA Light-Weight Robot (LWR) arms. The LWRs have similar dimensions to human arms, and can be operated in torque and position control mode at an update rate of 1 kHz. The two robots are mounted behind the user, such that the intersecting workspace of the robots and the human arms becomes maximal. In order to enhance user interaction, various hand interfaces and additional tactile feedback devices can be used together with the robots. The presented system is equipped with a thorough safety architecture that assures safe operation for human and robot. Additionally, sophisticated control strategies improve performance and guarantee stability. The introduced haptic system is well suited for versatile applications in remote and virtual environments, especially for large unscaled movements.

[1]  Emilio Jesús Lázaro Sánchez,et al.  Control Algorithms for Haptic Interaction and Modifying the Dynamical Behavior of the Interface , 2005 .

[2]  M. Buss,et al.  Control and performance evaluation of a new redundant haptic interface , 2007, SICE Annual Conference 2007.

[3]  Thomas Hulin,et al.  Evaluating Two Novel Tactile Feedback Devices , 2007 .

[4]  Thomas Hulin,et al.  Workspace comparisons of setup configurations for human-robot interaction , 2010, 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[5]  Mikel Sagardia,et al.  Human-Scale Bimanual Haptic Interface , 2008 .

[6]  Alessandro De Luca,et al.  Collision detection and reaction: A contribution to safe physical Human-Robot Interaction , 2008, 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[7]  Florian Schmidt,et al.  Multimodal telepresent control of DLR's Rollin' JUSTIN , 2009, 2009 IEEE International Conference on Robotics and Automation.

[8]  Alin Albu-Schäffer,et al.  DLR's torque-controlled light weight robot III-are we reaching the technological limits now? , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).

[9]  Tobias Ende,et al.  VibroTac: An ergonomic and versatile usable vibrotactile feedback device , 2010, 19th International Symposium in Robot and Human Interactive Communication.

[10]  Alin Albu-Schäffer,et al.  A humanoid upper body system for two-handed manipulation , 2007, Proceedings 2007 IEEE International Conference on Robotics and Automation.

[11]  Alin Albu-Schäffer,et al.  Safe Physical Human-Robot Interaction: Measurements, Analysis and New Insights , 2007, ISRR.