Patent ID: 8029198

Claim:
A sentry robot comprising: a base; a main body disposed on the base and capable of pivoting; a master camera disposed on the main body and capable of moving with the motion of the main body; an actuation mechanism having two degrees of freedom of movement comprising: a pivot driving portion, which comprises: a platform; a first connection portion rotatably installed on the platform; and a first motor which rotates the first connection portion; and a vertical driving portion, which comprises: a second connection portion connected to an upper side of the first connection portion; a column disposed on the second connection portion; a mount rotatably disposed adjacent an upper portion of the column; and a second motor rotating the mount, with respect to the column, at least partially around a first y-axis, wherein the vertical driving portion is at least partially rotated around a first z-axis when the first motor rotates the first connection portion; and an active camera disposed on the actuation mechanism and capable of moving with the motion of the actuation mechanism to at least partially rotate around the first z-axis and to at least partially rotate around the first y-axis, wherein the master camera is capable of rotating around a second y-axis.