Safety Instructions

Table Of Contents
SYMEO LPR
®
LPR-1D
Product Documentation
System Description
Copyright © Symeo GmbH 2010
Page 16 of 87
2.6.2 Positioning of Crane Crab (LPR
®
1DP2)
In order to determine positions in two dimensions (x-y coordinates), three LPR
®
units can be
arranged in an L-shape (see Figure 7). In this case, the unit that is configured as the
transponder (station 1) is equipped with 2 antennas. This unit measures against the first
base station (station 2) with the first antenna, and against the second base station (station 3)
with the other antenna, for example. In this way, the position of a crane crab can be
determined, for example.
Crane Bridge
Crane Crab
LPR 1DP2
(Plan View)
Antenna
LPR Base
Station
LPR
Transponder
Radio Path
Figure 7: LPR
®
1DP2 L-shaped arrangement