Abstract: A machine learning device, which learns an operation program of a robot, includes a state observation unit which observes as a state variable at least one of a shaking of an arm of the robot and a length of an operation trajectory of the arm of the robot; a determination data obtaining unit which obtains as determination data a cycle time in which the robot performs processing; and a learning unit which learns the operation program of the robot based on an output of the state observation unit and an output of the determination data obtaining unit.

Abstract: A robot system having a communication established between a robot controller and a teach pendant. The robot system includes a robot; a detecting section for detecting a sign received by the robot; a robot controller for controlling the robot; a teach pendant capable of communicating with the robot controller and inputting an operational instruction for the robot into the robot controller; and an input permission section for permitting input of the operational instruction from the teach pendant into the robot controller when the sign is detected by the detecting section.

Abstract: An emergency stop system includes: an emergency stop switch including an operation button, a state output unit which outputs a state different in accordance with whether or not the operation button is pushed down, and an attachment unit which attaches the operation button and the state output unit to the mobile device in a detachable manner in such a manner that the state of the state output unit is positioned at a side facing a camera of the mobile device at the time of attachment to the mobile device; and an information processing unit determines in accordance with an image related to the state of the state output unit as imaged by the camera whether to output an emergency stop signal indicating an emergency stop of the machine operated by the mobile device or to output an emergency stop signal indicating no emergency stop of the machine.

Abstract: An emergency stop system includes: an emergency stop switch including an operation button, a state output unit which outputs a state different in accordance with whether or not the operation button is pushed down, and an attachment unit which attaches the operation button and the state output unit to the mobile device in a detachable manner in such a manner that the state of the state output unit is positioned at a side facing a camera of the mobile device at the time of attachment to the mobile device; and an information processing unit determines in accordance with an image related to the state of the state output unit as imaged by the camera whether to output an emergency stop signal indicating an emergency stop of the machine operated by the mobile device or to output an emergency stop signal indicating no emergency stop of the machine.

Abstract: A machine learning device, which learns an operation program of a robot, includes a state observation unit which observes as a state variable at least one of a shaking of an arm of the robot and a length of an operation trajectory of the arm of the robot; a determination data obtaining unit which obtains as determination data a cycle time in which the robot performs processing; and a learning unit which learns the operation program of the robot based on an output of the state observation unit and an output of the determination data obtaining unit.

Abstract: A robot system having a communication established between a robot controller and a teach pendant. The robot system includes a robot; a detecting section for detecting a sign received by the robot; a robot controller for controlling the robot; a teach pendant capable of communicating with the robot controller and inputting an operational instruction for the robot into the robot controller; and an input permission section for permitting input of the operational instruction from the teach pendant into the robot controller when the sign is detected by the detecting section.