I have a very small and cheap robot and I wanted to mount a 2D LiDAR on a bottom of it (3cm above the ground). It seems to be great as during the mapping the lidar will detect even small elevations from the ground.
But what happens when a chair will be in front of this LiDAR? I guess it will see only its legs due to a limited optical window (as it is 2D). How can I cope with that? So my robot will not try to go under the chair.
This is the LiDAR: LINK