The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2025
Filed:
Sep. 26, 2019
Daikin Industries, Ltd., Osaka, JP;
Kiichirou Satou, Osaka, JP;
Masataka Nakano, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
An abnormality determination device () includes a calculator () calculating a deviation degree of a compressor () from a normal state based on data related to operation of a refrigeration apparatus () and a determination unit () determining whether the compressor () has an abnormality or estimating an abnormality occurrence time based on a calculation result of the calculator (). The calculator () calculates a first index value from data related to operation of the refrigeration apparatus () in a first period and a second index value from data related to operation of the refrigeration apparatus () in a second period that differs in length from the first period. The calculator () calculates the deviation degree of the compressor () from the normal state based on the first index value and the second index value. The determination unit () determines whether the compressor () has an abnormality or estimates an abnormality occurrence time based on the deviation degree of the compressor () from the normal state.