Applications

Events

21.03.2012
Crane Conference
Dresden, Germany

13.-15.03.2012
TOC Asia
Hong Kong

Downloads

Measurement of Crane and Crab Position

crane 4Dust and ambient conditions are a typical reason for failure of conventional crane positioning sensors. Long measurement distances and / or several cranes on a single crane rail provide an additional challenge. crane 7

Cranes in production processes must communicate their position with the highest possible reliability. Each scheduled or unscheduled maintenance stop can cause a significant loss in production.


Symeo LPR - maintenance free positioning of cranes and crane trolleys

There are 2 different ways to determine crane positions with LPR sensors:

- LPR-2D, with fixed reference marks (transponders), that are used by all crane (trolleys) on the same rail. Each trolley carries a base station that continuously measures the actual position of the crane and the trolley (the load position respectively).

crane with LPR A

Symeo datasheet: LPR-2D

 

- LPR-1D, where every movement (e.g. crane bridge and crane trolley) is measured separately. The position is then composed from the separated distance readings. LPR-1D can communicate its own distance data and additional user data through the LPR radio communication channel. Thus, the use of a wireless LAN to transfer crane positions can be avoided.

crane with LPR B

Symeo datasheet: LPR-1DP/2, LPR-1DHP for position measurement and drive sync control .

Measurement is contact-free with no wear and tear. Even under dusty conditions and in outdoor applications, LPR operates completey maintenance-free.