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US 2021/0356928 A1Published application
System and method for detecting change over in manufacturing field
AssigneeHitachi, Ltd.
InventorNobuyuki MURANAKA
Life of this patent
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Abstract
Example implementations described herein are directed to a change over detection system and method. Such example implementations facilitate updating the information of the production line in an Internet of Things (IoT) system to the latest version. Through the example implementations described herein, device rearrangement in manufacturing field can thereby be detected.
Claims15
A method, comprising:
- for a detection of a stoppage and a restart of the PLC within a threshold period of time:
- retrieving first metrics from the PLC from before the stoppage and second metrics from the PLC from after the restart;
- extracting first features from the first metrics and second features from the second metrics;
- and
- for a difference between the first features and the second features exceeding a threshold, transmitting a notification to an asset management server indicative of a changeover of an asset of the PLC.
2 more elements
A non-transitory computer readable medium, storing instructions for executing a process, the instructions comprising:
- for a detection of a stoppage and a restart of the PLC within a threshold period of time:
- retrieving first metrics from the PLC from before the stoppage and second metrics from the PLC from after the restart;
- extracting first features from the first metrics and second features from the second metrics;
- and
- for a difference between the first features and the second features exceeding a threshold, transmitting a notification to an asset management server indicative of a changeover of an asset of the PLC.
2 more elements
An apparatus, comprising:
- a processor, configured to, for a detection of a stoppage and a restart of the PLC within a threshold period of time:
- retrieve first metrics from the PLC from before the stoppage and second metrics from the PLC from after the restart;
- extract first features from the first metrics and second features from the second metrics;
- and
- for a difference between the first features and the second features exceeding a threshold, transmit a notification to an asset management server indicative of a changeover of an asset of the PLC.
2 more elements
Dependencies are inferred from the claim text.