Patent ID: 7990096
Filing Date: 2011-08-02
Classification: F16P

Abstract:
1. A method for using a mobile operating device to operate at least one machine in a safety-relevant manner in a plant, comprising: providing the mobile operating device having a read device for receiving radio signals and an evaluation unit for evaluation of the radio signals; operating the machine within an effective range assigned to the machine, which is delimited by one or more RFID transponders; receiving the radio signals of an RFID transponder located in the receive zone of the read device by the read device; receiving the radio signals by the evaluation unit; determining an identification number of this RFID transponder by the evaluation unit based upon the received radio signals; determining a distance of the RFID transponder to the operating by the evaluation unit based upon the received radio signals; forwarding the data to a safety module in the operating device by the evaluation unit; receiving from at least one reference transponder its identification number and distance at predetermined intervals by the safety module via the transmission chain read device, evaluation unit and safety module; and checking as to whether the data of the reference transponder as regards the identification number and the distance as well as the predetermined intervals, is being received as expected by the safety module.