Amazon, Alibaba, Walmart and others are all experimenting with novel ideas to make drone delivery a reality. One of the major concerns that is yet to really be addressed is how to make this safe both for humans and other aircraft. Thousands of delivery drones, after all, would lead to some crowded airspace and were always just one catastrophic event from panic that could kill this sort of idea before it really takes off.
Google thinks it has the answer — at least as it relates to drone-to-human collisions — in a new patent. The patent details an autonomous delivery system that attempts to keep humans at a safe distance from delivery drones using a low-tech vocal warning.
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