Patent ID: 9588519
Date: 2017-03-07
CPC Classifications: B25J,G05D,G06K,Y10S

Claim:
1. A method to maintain a threshold distance between a worker and a robot in a workspace, the method comprising: receiving, at a server from an imaging device associated with the robot, first location information for the robot in the workspace at a first time, wherein the server is external to the worker and the robot; receiving, at the server from an imaging device associated with the worker, second location information for the worker in the workspace at the first time; designating, with the server, a work zone encompassing at least the worker and comprising at least an inner barrier and an outer barrier; calculating, with the server, a distance between the robot and the worker based at least in part on the first location information for the robot and the second location information for the worker; and transmitting, from the server to the robot, an instruction to take evasive action based at least in part on the robot crossing the outer barrier; wherein the first location information for the robot comprises first fiducial data from a first fiducial, the first fiducial proximate to the robot at the first time; wherein the second location information for the worker comprises second fiducial data from a second fiducial, the second fiducial proximate to the worker at the first time.