Transmitters (beacons) are installed at 50 cm intervals on the outer guide trough side links and connected by cable. They transmit their positions to a single antenna fixed to the floating moving end. The system uses the relative position of the beacon to the antenna and the transmitted position to calculate the trolley position and sends it via Profinet to the customer control system as information for the EC. PR push/pull force monitoring system and for precise crane trolley positioning. The repeatability envisioned is indicated to be +/-5mm!
1 E-mail of 9/4/2020 from the CEO of a well-known manufacturer of position measuring systems on crane systems