Further topics
•
"SICK support and further services", page 90
•
"About localization", page 44
•
"About maps", page 38
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"About pose accuracy", page 42
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"About Dynamic Environment Handling", page 42
3.2 System requirements
Requirements for the environment
Consider the following requirements for using LiDAR-LOC.
•
The system is suitable for navigation in closed buildings with even floors.
•
Walls, columns, and other fixed structures represented in the map must be suffi‐
ciently visible from all positions in the building.
The LiDAR scan data of all sensors combined shall at least detect 60 % of the
static mapped surrounding contour. The map produced during commissioning
should include structures in the direction of motion as well as transverse direction.
The scans measured during operation should be able to reproduce these struc‐
tures. Localisation might also be possible with less than 60 % detected contour.
However, this must be tested in each individual environment.
•
The surrounding ambient conditions for individual components, for example, the
temperature, must comply with the data sheets.
NOTE
SICK Service can assess your factory site and create a reference map.
Requirements for the vehicle configuration
Consider the following aspects when configuring your vehicle.
•
Ensure that you use a suitable sensor type for your application. Use a 2D LiDAR
sensor with high values for accuracy, range, resolution, and cycle time to improve
the accuracy of the overall system. (Data sheet)
•
To increase the accuracy and robustness of the localization, a field of view of
360° from all LiDAR sensors combined is recommended. If necessary, use several
LiDAR sensors to achieve a maximum field of view of 360°.
•
The field of view of all LiDAR sensors together must be at least 200° to operate
LiDAR-LOC reliably.
•
It is recommended to use additional odometry components to further increase the
reliability of the localization. (About odometry for support)
Requirements for the 2D LiDAR sensor
Consider the following aspects when choosing the mounting height of the sensor.
•
The sensor must be installed at a height that ensures a good field of view of
the fixed elements in the facility from every location. Fixed elements include, for
example, walls, columns, and fixed racks.
•
The angular scan range of the 2D LiDAR sensor should not be obstructed.
LiDAR-LOC tolerates individual objects that move into the scan plane. This means that
less than 100 % of the scan points can match the reference map. The system works
even if the scan data deviates from the contour, for example, because the hall layout
changes slightly or because objects move into the scan plane.
PRODUCT DESCRIPTION 3
8024728/19NW/2020-10-22 | SICK O P E R A T I N G I N S T R U C T I O N S | LiDAR localization software
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Subject to change without notice