ABNORMALITY SIGN DIAGNOSTIC DEVICE AND PROGRAM

• Main Authors: KAJITA SHUHEI, NODA TOJIRO
• Format: Patent
• Language: English; Japanese
• Published: 17.05.2024
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

To appropriately determine whether or not a diagnostic model needs to be updated.SOLUTION: An abnormality sign diagnostic device 100 comprises: a sign detection unit 116 which generates abnormality sign alert data D6 indicating occurrence of an abnormality sign of monitoring target equipment 200 based on operation data D2 obtained from a state of the monitoring target equipment and a diagnostic model D3; a detection target determination unit 127 which determines whether or not an abnormal event is a detection target for which the sign detection unit should previously generate the corresponding abnormality sign alert data when the abnormal event occurs in the monitoring target equipment; and a search processing unit 128 which determines whether or not a missing report that the abnormality sign alert data corresponding to the abnormal event has not been previously generated has occurred when a determination result of the detection target determination unit is positive, and determines that the diagnostic model needs to be updated when the missing report occurs.SELECTED DRAWING: Figure 1 【課題】診断モデルの更新の要否を適切に判定できるようにする。【解決手段】監視対象設備２００の状態を取得した稼働データＤ２と、診断モデルＤ３と、に基づいて、前記監視対象設備の異常予兆の発生を示す異常予兆アラート・データＤ６を生成する予兆検知部１１６と、前記監視対象設備に異常事象が発生した場合に、当該異常事象は、前記予兆検知部が対応する前記異常予兆アラート・データを事前に生成すべき検知対象であるか否かを判定する検知対象判断部１２７と、前記検知対象判断部の判定結果が肯定であった場合に、前記異常事象に対応する前記異常予兆アラート・データが事前に生成されていない失報が生じたか否かを判定し、前記失報が生じた場合には、前記診断モデルの更新が必要である旨を判定する検索処理部１２８と、を異常予兆診断装置１００に設けた。【選択図】図１