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

Claim 0:
1. A lifting system, which comprises
a plurality of lifting apparatuses which are actuatable by means of a control system, the control system comprising
a control device and
a plurality of control units, each control unit provided on a respective lifting apparatus and actuating a load-bearing means of the respective lifting apparatus, wherein
the control device being provided separately from the control units, and
each control unit and the control device include a transceiver configured for a wireless transmission and/or receipt of the control signal and/or a presence signal, wherein
a data interface for the wireless transmission of the presence signal is provided on each control unit and on the control device, and
the data interface on the control device is configured to produce a signal cone which is oriented differently from the load-bearing means, wherein
the control device is positioned within the signal cone of the data interface of a respective control unit; and
the respective control unit releases the actuation of a respective lifting apparatus upon receipt of the presence signal and the control signal from the control device within a time window.