Stanford path-planning algorithm enables autonomous multi-drone aerial surveys of Antarctic penguin colonies

​The Adélie penguin colony at Cape Crozier. Credit: Parker LevinsonA new multi-drone imaging system was put to the test in Antarctica.The task? Documenting a colony of roughly 1 million Adélie penguins. Watch the video here.Stanford University researcher Mac Schwager entered the world of penguin counting through a chance meeting at his sister-in-law’s wedding in June 2016. There, he learned that Annie Schmidt, a biologist at Point Blue Conservation Science, was seeking a better way to image a large penguin colony in Antarctica. Schwager, who is an assistant professor of aeronautics and astronautics, saw an opportunity to collaborate, given his work on controlling swarms of autonomous flying robots.That’s how, three-and-a-half years later, Schwager’s graduate student, Kunal Shah, found himself at the famous McMurdo Station, ready for the first Antarctic test flight of their new multi-drone imaging system, which coordinates the flight of multiple high-end autonomous drones – but can also work with hobby drones.The project did not have an auspicious start. “My hands were freezing. The drone batteries were too cold to work. The drone remote control was too cold. My phone was too cold and was flashing warnings,” recalled Shah. “I just thought, ‘I’m down here for two-and-a-half months and this is day one.’ ”Undeterred, Shah and his colleagues quickly adapted and their system, which is the subject of a paper published Oct. 28 in Science Robotics, repeatedly produced detailed visual surveys of approximately 300,000 nesting pairs of Adélie penguins over a 2-square-kilometer area at Cape Crozier – roughly equivalent to the size of the country of Monaco – and another smaller colony of about 3,000 nesting pairs at Cape Royds. Whereas previous human-piloted drone surveys of the Cape Crozier colony took two days, each round of the new survey, completed in collaboration with National Science Foundation (NSF) and U.S. Antarctic Program (USAP), was completed in about two-and-a-half hours, thanks to a route planning algorithm that coordinated two to four autonomous drones and prioritized efficient coverage of the colony.continue readingOriginally published byTaylor Kubta | October 28, 2020Stanford News via /r/JAAGNet https://ift.tt/2TzNc5C