![background image](http://html.mh-extra.com/html/sick/lms511-se/lms511-se_operating-instructions-manual_1264310027.webp)
SYSTEM DESCRIPTION
3
27
8017768/12AX/2019-05-31|SICK
Subject to change without notice
O P E R A T I N G I N S T R U C T I O N S | TIC
3.3
The measurement site
3.3.1
Typical layout of the measurement site
The system components for vehicle detection are mounted either above the road on a
gantry or to the side of the road on a mast or post. This position enables the profile of the
vehicle to be captured perfectly and the length to be calculated. Depending on the system
configuration, one or more 2D LiDAR sensors are responsible for monitoring up to four
lanes of a road. One direction of travel is assigned to each lane.
The system components for axle counting are mounted on the side on the right and/or left
edge of the lane.
A side strip can be visualized in the layout of the measurement site. The side strip is not
included in any system function.
Within all layouts, the system components are precisely positioned in
a 3-dimensional coordinate system.
Fig. 12: Coordinate system
The following axes are used in this coordinate system:
•
The horizontal axis (X-axis) points orthogonally across the lane. The zero-point of this
axis is the right-hand edge of the lane (or the right edge of the side stripe).
•
The vertical axis (Y-axis) points upward perpendicular to the road surface.
•
The movement axis (Z-axis) points in the direction of travel. The third distance value is
measured in relation to the measuring plane.