Patent ID: 11953883
Assignee: GERHARD FINKBEINER
Field: Control (Instruments)
Classification: CPC G  B | IPC B  G

Claim 10:
11. A method for controlling a lifting system comprising a plurality of lifting apparatuses, each of which has a load-bearing means which is movable up and down, the method comprising:
activating a control system configured to actuate the plurality of lifting apparatuses, wherein the control system consists includes a control device and a plurality of control units arranged separately therefrom and one on each lifting apparatus,
the control device and the control units each have a transceiver by means of which control signals are transmitted and received wirelessly, wherein
the control device and the control units each have data interfaces by means of which at least one presence signal is transmitted between the control device and a respective control unit, and
the control device is positioned within a signal cone of the data interface of the respective control unit, and
the respective control unit releases the actuation of the lifting apparatus upon receipt of the presence signal and the control signal from the control device within a time window.