The virtual bumper is a safeguarding mechanism for autonomous and remotely operated robots. In this paper we take a new approach to the virtual bumper system by using an old statistical test. By using a modified version of Wald's sequential probability ratio test we demonstrate that we can reduce the number of false positive reported by the virtual bumper, thereby saving valuable mission time. We use the concept of sequential probability ratio to control vehicle speed in the presence of possible obstacles in order to increase certainty about whether or not obstacles are present. Our new algorithm reduces the chances of collision by approximately 98 relative to traditional virtual bumper safeguarding without speed control.


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    Title :

    Safeguarding a Lunar Rover with Wald's Sequential Probability Ratio Test


    Contributors:

    Conference:

    2016 International Conference on Robotics and Automation (ICRA 2016) ; 2016 ; Stockholm, Sweden


    Publication date :

    2016-05-16


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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