The Robotics Institute

Carnegie Mellon Robotics Institute

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Abstract

Autonomous and teleoperated mobile robots require an accurate knowledge of their spatial location in order to accomplish many tasks. Many mobile robots make use of dead reckoning navigation because of its simplicity, low cost and robustness. Although dead reckoning navigation has been used for centuries for ships and wheeled vehicles, the application to a walking machine is novel. Since walking machines differ greatly from ships and wheeled vehicles, a new approach to dead reckoning was developed to solve this problem. This paper discusses the problem, a solution, preliminary test results and future goals for dead reckoning navigation. Experiments were done with the CMU Ambler, an autonomous, six-legged walking robot, but the results are general and apply to any statically stable walking robot. The current results show a systematic bias of two percent of body advance in the direction of travel. Although the cause of this bias is unknown, it is corrected in the position estimation routines.

Notes

Sponsor: NASA

Grant ID: NAGW-1175

Associated Center(s) / Consortia: Vision and Autonomous Systems Center and Field Robotics Center

Associated Project(s): Ambler

Number of pages: 18

Text Reference

G. P. Roston and Eric Krotkov, "Dead Reckoning Navigation for Walking Robots," tech. report CMU-RI-TR-91-27, Robotics Institute, Carnegie Mellon University, November, 1991

BibTeX Reference

@techreport{Krotkov_1991_271,
   author = "G. P. Roston and Eric Krotkov",
   title = "Dead Reckoning Navigation for Walking Robots",
   booktitle = "",
   institution = "Robotics Institute",
   month = "November",
   year = "1991",
   number= "CMU-RI-TR-91-27",
   address= "Pittsburgh, PA",
}

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