Product description
40
© SICK AG · Germany · All rights reserved · Subject to change without notice
8013889/ZML0/2017-06-09
Operating Instructions
NAV350 Laser positioning sensor
Chapter
3
3.10.6
Reflector placements
Reflector placements are to be planned such that the NAV350 has a clear view of at least
3 reflectors in every position. A clear view of 4 to 5 reflectors is recommended to ensure
reliable positioning even in the case of the operation of several AGV. As far as possible the
same number of reflectors should be fitted to both sides of the route.
The NAV350 identifies a reflector placement by allocating individual reflector position
measurements to the reflector coordinates saved. Specific requirements must be taken
into account for the reflector placement for the
initial positioning
. So that the NAV350 can
clearly unambiguously identify a reflector placement during the
initial positioning
(see
“Ini-
tial positioning” on page 25
), it needs a certain pattern in the placement. In such pattern,
all the distances between the reflectors vary by at least 500 mm (19.69 in).
fig. 24
shows two examples for a correct and an incorrect reflector placement.
Fig. 24:
Correct, asymmetrical placement and incorrect, symmetrical placement of reflectors
During continuous positioning (see
“Continuous positioning” on page 25
) the NAV350 can
also process symmetrical reflector placements.