RTS Labs, an Iranian research firm, has started work on a drone lifeguard. Tired of hearing stories about people drowning in the Caspian Sea, the researchers sought out a way to improve water rescue. Drones can help in several ways humans can't - they can move faster over choppy seas, they always remain calm, and a drone will never fall asleep on the job. Iran has an unusually high rate of unintentional drownings compared with European countries. A robot that helps lifeguards save lives faster could presumably lower that rate.
The Pars Aerial Rescue Robot is designed to work as a mobile lifesaver dispensary, flying out to those in need and dropping vital flotation aids until better help can be secured. As currently designed, Pars starts with a quadrotor, which makes sense: quadrotors are versatile platforms, beloved by scientists because the machines can do things like test eagle arms and kinect-based navigation. Quadrotors are also relatively strong. That means Pars wouldn't have any trouble carrying life preservers as well as a sophisticated navigation software and infrared cameras.
In its current iteration, Pars carries up to three life preservers; in future iterations, it could carry as many as 15, the researchers say. To fit that many life preservers on a drone without the whole thing looking like a precarious stack of Oreos, researchers want Pars to carry self-inflating life preservers that use chemical materials to bloat. Pars would also be able to land on water and float until a rescue vessel picks it up.
Source : http://www.nexpected.com