Inside Unmanned Systems

OCT-NOV 2016

Inside Unmanned Systems provides actionable business intelligence to decision-makers and influencers operating within the global UAS community. Features include analysis of key technologies, policy/regulatory developments and new product design.

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49 unmanned systems inside October/November 2016 ENGINEERING. PRACTICE. POLICY. control than a mobile sensor. Where mobile LiDAR is important is when you have tun- nels or overpasses or anything you can't see from the air." Puttagunta and the team at Civil Maps is developing a technology that creates 3D maps for autonomous vehicles in real time. Typically the map creating process happens off line after the data is collected, he said. With this technology, algorithms in the car tap into the LiDAR data stream as it's being generated, creating the maps automatically. This makes it possible to update the maps more economically and more often. Civil Maps is working with car manu- facturers as well as city governments and plans to enter the pre-production stage soon with a solution, that overcomes many of the challenges this type of mapping presents, Puttagunta said. They've re- duced the amount of raw data going into the map, which means less computation and the ability to leverage cellular con- nections for crowd sourcing from multiple cars. The solution also corrects the data using information from inertial measure- ment unit (IMU) on the vehicles to ensure precise locations. "Imagine you have 100 cars driving through San Francisco and each car is tagging what they see in their sensor data. One car might la- bel all stop signs and another might label lane markings," Puttagunta said. "When we aggre- gate that information we need to make sure everything is spatially consistent. The dis- tance between the stop sign and lane mark- ings needs to represent the distance we see in the real world. Each car might have different 0.1° Roll & Pitch 0.2° Heading 2 cm RTK » Immune to magnetic disturbances » L1/L2 GNSS receiver Ellipse-D Dual GNSS/INS Inertial Navigation System » Accurate heading even under low dynamics » Post-processing Harris Geospatial Solutions Geiger-mode LiDAR The Geiger-mode LiDAR sensor provides a 10 times improvement in 3D resolution and can collect data up to 10 times faster than standard linear LiDAR sensors.

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