Controlling an automated wheelchair via joystick/head-joystick supported by smart driving assistance

With this work, we encourage the application of smart driving assistance algorithms to support the operator of an automated wheelchair in complex navigational situations. On the basis of an empirical study in which eight untrained subjects performed a given course using a conventional joystick and a proportional head-joystick respectively, we are able to prove benefits resulting from the application of a newly developed driving assistance module. Altering the translational and rotational velocities in situations where an obstacle blocks the user-commanded way, the driving assistance module significantly improves driver-performance by preventing all collisions along the way.

[1]  S. P. Levine,et al.  Voice control of a powered wheelchair , 2002, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

[2]  David A. Bell,et al.  NavChair: An Assistive Wheelchair Navigation System with Automatic Adaptation , 1998, Assistive Technology and Artificial Intelligence.

[3]  Axel Lankenau,et al.  Smart Wheelchairs - State of the Art in an Emerging Market , 2000, Künstliche Intell..

[4]  Axel Lankenau,et al.  A versatile and safe mobility assistant , 2001, IEEE Robotics Autom. Mag..

[5]  Christian Mandel,et al.  Comparison of Wheelchair User Interfaces for the Paralysed: Head-Joystick vs. Verbal Path Selection from an offered Route-Set , 2007, EMCR.

[6]  S P Levine,et al.  The NavChair Assistive Wheelchair Navigation System. , 1999, IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society.

[7]  Christian Mandel,et al.  Design Improvements for Proportional Control of Autonomous Wheelchairs Via 3DOF Orientation Tracker , 2007, IWANN.

[8]  Christian Mandel,et al.  Robot Navigation based on the Mapping of Coarse Qualitative Route Descriptions to Route Graphs , 2006, 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[9]  Cuntai Guan,et al.  Controlling a wheelchair using a BCI with low information transfer rate , 2007, 2007 IEEE 10th International Conference on Rehabilitation Robotics.

[10]  Wolfram Burgard,et al.  Improved Techniques for Grid Mapping With Rao-Blackwellized Particle Filters , 2007, IEEE Transactions on Robotics.

[11]  R. Simpson.  Smart wheelchairs: A literature review. , 2005, Journal of rehabilitation research and development.

[12]  U. Frese,et al.  Applying a 3DOF Orientation Tracker as a Human-Robot Interface for Autonomous Wheelchairs , 2007, 2007 IEEE 10th International Conference on Rehabilitation Robotics.

[13]  Alfons Schuster.  Robust Intelligent Systems , 2008 .

[14]  James Gips,et al.  On Building Intelligence into EagleEyes , 1998, Assistive Technology and Artificial Intelligence.

[15]  M. Bureau,et al.  Non-Invasive, Wireless and Universal Interface for the Control of Peripheral Devices by Means of Head Movements , 2007, 2007 IEEE 10th International Conference on Rehabilitation Robotics.