| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an abnormality diagnosis system capable of diagnosing abnormality with high accuracy with less knowledge relating to an air conditioning device to be diagnosed. <P>SOLUTION: This abnormality diagnosis system performing diagnosis of abnormality in an air conditioning device, comprises a first deriving portion, a second deriving portion and an abnormality diagnosing portion. The first deriving portion derives a derived value on the basis of a state value relating to a state of the air conditioning device in diagnosis. The second deriving portion derives a normal value on the basis of the state value in a normal operation of the air conditioning device. The abnormality diagnosing portion compares the derived value with the normal value, and diagnoses the abnormality of the air conditioning device on the basis of whether prescribed change occurs or not. The second deriving portion re-derives the normal value in the normal operation of the air conditioning device. The abnormality diagnosing portion diagnoses the abnormality by comparing the derived value with the latest normal value. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
