A Robust Statistical Collision Detection Framework for Quadruped Robots

  • Tekin Meriçli
  • Çetin Meriçli
  • H. Levent Akın
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5399)

Abstract

In order to achieve its tasks in an effective manner, an autonomous mobile robot must be able to detect and quickly recover from collisions. This paper proposes a new solution to the problem of detecting collisions during omnidirectional motion of a quadruped robot equipped with an internal accelerometer. We consider this as an instance of general signal processing and statistical anomaly detection problems. We find that temporal accelerometer readings examined in the frequency domain are good indicators of regularities (normal motion) and novel situations (collisions). In the course of time, the robot builds a probabilistic model that captures its proprioceptive properties while walking without obstruction and uses that model to determine whether there is an abnormality in the case of an unfamiliar pattern. The approach does not depend on walk characteristics and the walking algorithm used, and is insensitive to the surface texture that the robot walks on as long as the surface is flat. The experiments demonstrate quite fast and successful detection of collisions independent of the point of contact with an acceptably low false positive rate.

Keywords

Mobile Robot Collision Detection Quadruped Robot Legged Robot Robot Soccer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Tekin Meriçli
    • 1
  • Çetin Meriçli
    • 1
  • H. Levent Akın
    • 1
  1. 1.Department of Computer EngineeringBoğaziçi UniversityIstanbulTurkey

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