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A novel ultrasonic sensing system for autonomous mobile systems

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1 Author(s)
Bank, D. ; Autonomous Syst. Div., Res. Inst. for Appl. Knowledge Process., Ulm, Germany

This paper presents a novel ultrasonic sensing system for autonomous mobile systems. We describe how wide-angled ultrasonic transducers can be used to obtain substantial information from the environment. This can be achieved by exploiting the overlapping of detection cones from neighbor sensors and by receiving cross echoes between them. The ultrasonic sensing system also allows the detection of multiple echoes from different echo paths for each sensor. In this way, a significantly higher number of echoes can be obtained in comparison to conventional ultrasonic sensing systems for mobile robots. In order to benefit from the increased sensor information, algorithms for adequate data post-processing are required. In this context, we describe how an environment model can be created from ultrasonic sensor data.

Published in:

Sensors Journal, IEEE  (Volume:2 ,  Issue: 6 )

Date of Publication:

Dec 2002

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