Pig farmers in Denmark have helped design a £13,000 robot they hope
will do their dirty work for them. Their pigsty-cleaning droid is simple but
effective. It’s a wheeled blue box 1.5 metres long that carries a spray nozzle
attached to a 2-metre arm, and is designed to spray large volumes of water at
the muck until it floats down drainage channels. Infrared sensors keep the droid
on track between the pigpens, and pressure switches tell it to reverse if it
bumps into anything.
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