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Building machine comprising a presence detection system

  • US 8,622,165 B2
  • Filed: 04/01/2013
  • Issued: 01/07/2014
  • Est. Priority Date: 07/13/2010
  • Status: Active Grant
First Claim
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1. A road building machine comprising:

  • a control panel,a driver'"'"'s seat or a standing work position for an operator, anda presence detection system comprising a sensor configured to detect whether the operator is present on the driver'"'"'s seat or at the standing work position,the sensor of the presence detection system being integrated in the control panel of the building machine,the sensor is configured to detect the distance between the sensor and the operator on activation of the presence detection system, wherein the distance defines a starting value, andthe presence detection system is configured to determine on the basis of the starting value a constant tolerance range around the starting value, and is further configured to check whether the measured distance between the sensor and the operator remains within the tolerance range during operation of the building machine.

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