EARLY SIGN DETECTION SYSTEM AND EARLY SIGN DETECTION METHOD

WIPO Patent Application WO/2024/048428

A1

In order to improve the accuracy of detection of early signs of cooling performance degradation, this early sign detection system comprises: a pre-processing unit for acquiring chronological operational data of a device to be cooled that has a temperature elevation source and a cooling unit for cooling the temperature elevation source, and extracting a feature quantity from the operational data; and an early sign detection unit for diagnosing cooling performance on the basis of an output obtained by inputting a feature quantity extracted from diagnostic operational data to an early sign detection model constructed using training data generated on the basis of a feature quantity extracted from training operational data, and on the basis of labels indicating a state of cooling performance by the cooling unit. The early sign detection model has been constructed with the use of training data generated on the basis of a feature quantity extracted from operational data including operational states falling under ongoing operation and ongoing standby. When diagnosing cooling performance, the early sign detection unit inputs, to the early sign detection model, a feature quantity extracted from the operational data including operating states relevant only to ongoing operations.

NOJIRI TOHRU (JP)
TAKANO MASAHIKO (JP)
NAKAGAWA YUUSUKE (JP)
OJIMA MASAYOSHI (JP)

PCT/JP2023/030621

March 07, 2024

August 24, 2023

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HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)

G05B23/02

JP2019191799A	2019-10-31
JP2020154455A	2020-09-24

SUNNEXT INTERNATIONAL PATENT OFFICE (JP)

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