Unmanned aircraft must stay within visual line of sight with the remote pilot in command and the person manipulating the flight controls of the small unmanned aircraft method, or, alternately within VLOS in the visual observer. A 2015 experiment in Austin, Texas, showed one method to Incorporate drones and IoT. https://documenttranslationservic90111.blogproducer.com/34400599/the-smart-trick-of-wildlife-drones-that-no-one-is-discussing