A home “guard dragon” robot has been unveiled in Japan. The four-legged robot can sense smoke and alert its owners to a smouldering fire – via a howl or a mobile phone text message.



The Banryu was developed by two companies, Sanyo and Tmsuk. It is one metre long, 80 centimetres high, 70 centimetres wide and weighs 40 kilogrammes. It can move at a top speed of 15 metres per minute, which is “more than fast enough for a home robot designed to travel in confined, cluttered spaces,” Sanyo says.



The guard dragon can “confidently” walk over 10-centimetre gaps or climb a 15-centimetre high step using sensors located on its legs.

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