Systems and methods to facilitate human/robot interaction
First 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.
1 Assignment
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Accused Products
Abstract
Short range transmissions are used to identify potential interactions between warehouse workers and warehouse robots in automated warehouses. The robot can be equipped with one or more short range transmission tags, such as radio frequency identification (RFID) tags, while the warehouse worker can be equipped with a short range transmission reader, such as an RFID reader. The robot can detect a warehouse worker that is within range when the RFID tags on the robot are written to by the RFID reader. The warehouse robots and warehouse workers can also be equipped with one or more cameras to identify fiducials in the automated warehouse and to report their positions. A central control or interaction server can ensure that warehouse robots and warehouse workers are routed appropriately to avoid incidents.
61 Citations
20 Claims
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1. A method to maintain a threshold distance between a worker and a robot in a workspace, the method comprising:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A system comprising:
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a robot to perform one or more tasks in a workspace, the robot comprising; one or more imaging devices disposed on the robot to provide imagery of portions of the workspace proximate to the robot; a plurality of fiducials, each comprising fiducial data, attached to a floor in the workspace; and a cart to carry objects throughout the workspace, the cart associated with a worker and comprising; one or more imaging devices disposed on the cart to provide imagery of portions of the workspace proximate to the cart; a server in communication with the cart and the robot, the server receiving location information from the cart and the robot and establishing a barrier around the cart, wherein the server is external to the worker and the robot; wherein the server instructs the robot to take evasive action based at least in part on the robot crossing the barrier around the cart. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving, at a server from one or more robot imaging devices associated with a robot, first location information for the robot in a workspace; receiving, at the server from one or more cart imaging devices associated with a cart, second location information for the cart associated with a worker, wherein the server is external to the worker, the cart and the robot, the cart comprising; a carrying tray for carrying one or more objects; the one or more cart imaging devices to provide imagery proximate to the cart to the server; a wireless transceiver to provide wireless communication between the cart and the server; and a processor in communication with the one or more cart imaging devices and the wireless transceiver to send one or more signals to the server via the wireless transceiver; designating, with the server, a barrier encompassing at least the cart; and transmitting, from the server to the robot, an instruction to take evasive action based at least in part on the robot crossing the barrier. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification