4.1 Observing
PROPER
Installation
SCENE REQUIREMENTS:
•
good proportion to the frame width
•
well illuminated
•
sufficient contrast
•
acceptable tilt angle
•
good proportion to the frame width
•
perfect IR power
•
sufficient contrast
•
critical yet acceptable tilt angle
Fig. 1
Daytime
Fig. 2
Night time
HAN 0123
> 130px
<30˚
<30˚
<5˚
<5˚
License/number plate is
more than 130 px in width
23 | RoadWatch
Quick Reference Guide
License/number
plate is readable
Vertical angle is less
than 30°
Tilt angle is less
than 5°
Horizontal angle
is less than 30°
4
