Dynamic and Autonomous Nodding LiDAR Mechanism
A mechanism for dynamically and autonomously adjusting the scanning range and nodding speed of a single scan LiDAR
The U.S. Navy seeks to commercialize Navy Case 100892 (A method to dynamically modify the scanning angle range and rotating speed on a mechanism for tilting a single scan LiDAR).
To avoid the high cost of 3D LiDARs, less expensive 2D LiDARs can be nodded to capture a 3rd reference point and generate a 3D image. While existing nodding devices have their benefits, they only operate at a specified range and speed, and do not dynamically modify settings in real time based on the context of the environment.
SSC Pacific has developed a nodding mechanism that can modify a LiDAR’s scanning range and nodding speed in real time, allowing LiDAR data to be expanded to view a large area, or condensed to view a small area of interest. This area of interest can be determined manually by a user making a selection in a graphical user interface, or autonomously by the mechanism identifying and zooming in on changes in data within a scene (such as movement). The area can also be determined autonomously by an unmanned ground vehicle (UGV) or other platform. For example, if a UGV fitted with the mechanism accelerated, the mechanism could automatically scan a smaller range at a higher speed to acquire detailed data directly in front of the vehicle. The current prototype is compact (111 mm x 70 mm x 127 mm) and lightweight (716 g), making it perfect for a variety of robotic and surveillance applications.
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- SD 974, August 2011. SSC Pacific, San Diego, CA 92152–5001. Approved for public release; distribution is unlimited.