System and device for a self orienting device

  • US 5,935,179 A
  • Filed: 12/29/1997
  • Issued: 08/10/1999
  • Est. Priority Date: 04/30/1996
  • Status: Expired due to Term
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First Claim
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1. A proximity sensing system for an autonomous device being provided with motor driven wheels for carrying out a specific cleaning function, said device comprising members for the orientation and guiding of the device by means of a microprocessor system forming a proximity sensing system which comprises at least one transmitting member and one receiving member and a mechanical sensing member in form of a forward directed bumper, characterized in thatsaid transmitting member is a stripe-shaped ultrasound transducer extending along the front perimeter of the device and transmitting ultrasonic waves with a narrow vertical distribution within a wide sector in front of the device.

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