Comparison of Spatial Coverage of LiDAR Systems for In Home Activity of Daily Living Applications

LiDAR devices have potential for assessing Activities of Daily Living (ADL) within a residence. As LiDAR becomes ubiquitous in smartphones and autonomous vehicles, these devices are reducing in cost and becoming available with diverse performance and function. This paper models the coverage for 6 different commercially available LiDARs, including 3 rotational devices and 3 fixed systems, to assess the coverage provided for typical residential rooms. Field of view and range are key factors in determining coverage across several residential monitoring scenarios examined. The paper shows that one rotational LiDAR with the largest vertical field of view can provide coverage for 100% of each of the scenarios through an elevated deployment with a tilt to maximize the field of view within the lower 2m of the room.