Inside Unmanned Systems

APR-MAY 2018

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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25 April/May 2018 unmanned systems inside ENGINEERING. PRACTICE. POLICY. algorithms have been formally veri- fied," Dill said, "and we've designed our software to meet safety assurance standards all the way up to those for commercial manned aircraft." In fact, Safeguard is certified and that certification sets it apart because, as yet, there are no standards to en- able such certif ication through the usual aviation process. NASA, how- ever, has standards of its own and Safeguard has achieved a NASA class B certification, "which means that it is up to a level to be mission critical for unmanned spacef light," Dill said. A S a f e g u a r d - e q u ipp e d d r one also cannot be taken over in f light and directed over a geofenced area. Information on no-f ly zones is up- Safeguard A geofence enforcement system that: •  Has certifi ed software •   Is physically separate from autopilot •  Is unhackable in fl ight •  Has GNSS, other location technology s n a p s h o t Safe2Ditch Technology Patent pending This crash management system works with existing autopilots. It autonomously maneuvers a failing drone to a landing spot that minimizes risk to people and property by optimizing battery power and any still-functioning control capabilities. As it approaches the site, Safe2Ditch uses machine vision to check the selected site is clear as expected. Power Line Fault Sensor Patent Pending This technology, which can be installed on a drone, comprises a novel system of detecting, inspecting and analyzing a corona discharge using an ultra- violet camera. UV detection off ers images that isolate the location of the corona discharge with far greater precision—an approach that shows promise for detecting faults in power lines. Lightweight Sensing and Control System Patent 7,962,252 Researchers used micro-electro-mechanical systems (MEMS) to build a sensing and fl ight control system for small UAS that supports semi- autonomous fl ight. Its active fl ight control board and an avionics sensor board work together to compare the UAS' actual position, heading, and orientation with pre-programmed data—then makes adjustments to stay on course. Super Resolution 3-D LiDAR Patents: 8,655,513 and 8,494,687 Flash LiDAR takes advantage of the information in a sequence of 3-D images acquired at video rates. NASA's new image processing algorithm can improve image resolution by eight times by correcting and enhancing the image sequence during processing into a high-resolution 3-D synthetic image. The technique could aid autonomous vehicle guidance and control. Modular Multi-Mode Drone Patent Pending Designed for delivery services or a distributed aerial presence, this drone is capable of delivering multiple independent payloads over a range of more than 60 miles. The aircraft's wings are largely made of small UAS that can separate to perform independent missions. When un-assembled the drones use embedded ducted rotors for lift and propulsion. Wireless Sensor Patent 8,430,327 By using a magnetic fi eld response measurement acquisition system this technology can power a sensor without needing wiring. Sensors can be easily modifi ed to sense diff erent physical properties and arranging multiple sensors together can permit the wireless data acquisition system to read the responses from all of them by powering just one of them. loaded into Safeguard from an up-to- date database before a f light and can't be updated wirelessly. "Once Safeguard begins operation there are no inputs into it," Dill said. "So it is, while it's in operation, for all intents and purposes, hack proof." If a drone gets too close to a geofence Safeguard sends a warning to the air- craft to perform some sort of contin- gency maneuver, Dill said—perhaps a soft landing or a return-to-home order. If the drone continues toward the geo- fence, Safeguard—which, again, is a completely independent system—will terminate the f light, for example, by stopping the rotors. The software can bypass the drone's other systems to end the f light thereby preventing f lyaways

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