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Method for managing mobile operating devices

  • US 8,125,313 B2
  • Filed: 07/24/2008
  • Issued: 02/28/2012
  • Est. Priority Date: 08/02/2007
  • Status: Active Grant
First Claim
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1. A method for managing a mobile operating device for operating each of a plurality of machines that are controlled by a controller, the method comprising:

  • establishing a wireless communication link between the operating device and the controller;

    providing an RFID transponder on each machine, wherein the RFID transponder establishes an active area for the respective machine;

    providing a restricted logon for the operating device within each active area via recognition of one of the RFID transponders by the operating device;

    wherein the controller implements the following alternative steps in case of an error on the wireless communication link;

    providing an emergency global stop of all of the machines if the error occurs while establishing the wireless communications link;

    providing a local shutdown of only the respective machine if the error occurs after a logon of the operating device to the active area;

    providing a global ramp-down of all of the machines according to a user-specified schedule if the error occurs while the operating device is logged off; and

    providing a local ramp-down of the respective machine according to a user-specified schedule if the operating device leaves the active area for more than a specified duration without logging-off.

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