IP Library › Granted Patent US 10,875,198
Granted Patent B2
US 10,875,198 · App. 16/141,173 · Granted Dec 29, 2020

Robot system

Inventors: Tomoyuki Yamamoto (Yamanashi, JP); Nao Ooshima (Yamanashi, JP)
Assignee: FANUC CORPORATION
B25J19/06B25J9/1676B25J9/1697B25J13/089F16P3/14B25J19/022B25J19/023G05B2219/37563G05B2219/37572G05B2219/39082
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Quick Facts
Patent No.
US 10,875,198
App. No.
16/141,173
Granted
Dec 29, 2020
Kind
B2
Abstract

To provide a robot system capable of ensuring safety while giving consideration to the occurrence of a trouble in image capture means. A robot system with a camera for monitoring a robot comprises: current position model generation means that generates a current position model for the robot based on current position data about the robot and robot model data about the robot; simulation image generation means that generates a simulation image of the robot viewed from the direction of the camera based on set position data about the camera, set position data about the robot, and the current position model; detection means that compares the simulation image and a monitoring image acquired from the camera to detect the robot in the monitoring image; and safety ensuring means that ensures the safety of the robot system if the detection means does not detect the robot in the monitoring image.

Claims (11)

1. A robot system with a camera for monitoring a robot, comprising:

current position model generation means that generates a current position model for the robot based on current position data about the robot and robot model data about the robot;

simulation image generation means that generates a simulation image of the robot viewed from a direction of the camera based on set position data about the camera, set position data about the robot, and the current position model;

detection means that compares the simulation image and a monitoring image acquired from the camera to detect the robot in the monitoring image;

safety ensuring means that ensures a safety of the robot system when the detection means does not detect the robot in the monitoring image;

input means for input of a detection expected area in which the robot is to be detected in the monitoring image acquired from the camera; and

storage means that stores the detection expected area input through the input means, wherein

the safety ensuring means compares an area in which the robot is actually detected and the detection expected area, and when there is a difference exceeding a predetermined amount between the area in which the robot is actually detected and the detection expected area, the safety ensuring means ensures the safety of the robot system, and

wherein the current position model is data about a 3-dimensional model for the robot.

2. The robot system according to claim 1 , wherein the detection means comprises: detection area acquisition means that acquires the area in which the robot is actually detected in the monitoring image; and entry detection means that monitors a range determined by excluding the area from the monitoring image to detect entry of a human or an object other than the robot, and

when the entry detection means detects entry of a human or an object, the safety ensuring means ensures the safety of the robot system.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2018
From: YAMAMOTO, TOMOYUKI; OOSHIMA, NAO
To: FANUC CORPORATION
Reel/Frame 046965/0731 →
Priority Claims (1)
JP 2017-192902 · Oct 2, 2017 · national
Continuity (1)
Related Publication 20190099902A1 · Apr 4, 2019