Robot security guard 机器人保安
2014年 7月 2日 最后更新时间：13:12 GMT
Meet Bob, the metal minder.
He's on patrol in the offices of the security company G4S.
Bob does a 3D scan of each room to check if anything's missing.
This technology is just one of many new developments in the UK's robotics sector.
And while he's no substitute for a human security guard, Bob has already learned some basic office etiquette.
"Thank you, I will be on my way."
on patrol 巡逻