A robot is a machine designed to execute one or more tasks repeatedly, with speed and precision. There are different types of robots as there are tasks for them to perform. Security robots are protecting property and documenting facilities autonomously around the world. An important aspect of robotic security systems is surveillance of specified area. The authors provide surveillance on wheels and may be one of the security industry's best kept secret. The Naval Postgraduate School in Monterey, California first attempted the concept of a fully autonomous indoor security robot in the late 1970s. Other agencies including NASA and US Government of Defense were also working on implementation of robotics technology.