Robots ring the alarm Summary: Sanyo and Tmsuk have developed guard robots which can communicate problems or irregularities via cell phones. By Bill Detwiler | July 19, 2006 -- 11:37 GMT (04:37 PDT) Follow @billdetwiler Previous | Next Image 4 of 4 Roborior with the light switched off. Topic: Emerging Tech Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.