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. 24, 2023
Filed:
Sep. 07, 2018
Hitachi, Ltd., Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A performance diagnosis device performs data collection of operation data of an air conditioner, and a model database indicates performance corresponding to each operating condition of the air conditioner. The device uses the operation data and the model database to obtain reference data that is a combination of a plurality of operating conditions and a reference value. A performance evaluation unit compares the reference data and evaluation data that is to be evaluated, and evaluates the performance of the air conditioner. A reference data update unit compares the reference data and the evaluation data when the operating conditions match with each other, and updates the reference data. As a result, the deterioration diagnosis technology can update unique reference values that reflect the dimensional errors of each device, differences in installation conditions, and differences in operating conditions to appropriate values with respect to the deterioration of the performance of air conditioners.