A company called Knightscope has developed a mobile robot known as the K5 Autonomous Data Machine as a safety and security guard for corporations, schools, neighborhoods, and so on.
As the New York Times (and anyone who has seen Star Wars) will point out, the robot closely resembles the R2D2 robot from the epic science fiction trilogy. The 300 pound, 5-foot-tall robot will be equipped with a video camera, thermal imaging sensors, a laser range finder, radar, air quality sensors, and a microphone. It will autonomously navigate hallways in preplanned routes in order to provide grounds security.