Equipment status estimation method and system
AssigneeHitachi, Ltd.
InventorsSatoshi Katsunuma, Michiko Yoshida
Life of this patent
Estimating the term…
Abstract
Example implementations described herein estimate parameters for equipment that cannot be sensed directly, including determining if such equipment is running or stopping. Example implementations determine the standard throughput per equipment and product, based on history of equipment production data, extract previous and next equipment of robotic arms on the line by using physical topology information of robot arms and equipment, senses and determines throughput of associated robot arms and compares the robot arm throughput with the standard throughputs of the previous and next equipment, which help determine whether the previous/next equipment have stopped.
Claims17
A method, comprising:
- determining a throughput of a robotic arm;
- determining an equipment and product pair from one or more equipment and product a pairs associated with the robotic arm based on comparing the throughput to a standard throughput of the robotic arm for the one or more equipment and product pairs;
- identifying idle equipment from the determined equipment and product pairs and a topology of the robotic arm;
- and
- identifying offline equipment from the determined equipment and product pair and the topology of the robotic arm, and alerting an offline status associated with the identified offline equipment.
A non-transitory computer readable medium, storing instructions for executing a process, the instructions comprising:
- determining a throughput of a robotic arm;
- determining an equipment and product pair from one or more equipment and product pairs associated with the robotic arm based on comparing the throughput to a standard throughput of the robotic arm for the one or more equipment and product pairs;
- identifying idle equipment from the determined equipment and product pair and a topology of the robotic arm;
- and
- identifying offline equipment from the determined equipment and product pair and the topology of the robotic arm, and alerting an offline status associated with the identified offline equipment.
A server connected to one or more programmable logic controllers (PLCs) associated with a robotic arm over a network, and wherein equipment associated with the robotic arm is isolated from the network, the server comprising:
- a processor, configured to:
- determine a throughput of a robotic arm;
- determine an equipment and product pair from one or more equipment and product pairs associated with the robotic arm based on comparing the throughput to a standard throughput of the robotic arm for the one or more equipment and product pairs;
- identify idle equipment from the determined equipment and product pair and a topology of the robotic arm;
- and
- identify offline equipment from the determined equipment and product pair and the topology of the robotic arm, and alert an offline status associated with the identified offline equipment.
Dependencies are inferred from the claim text.