MALFUNCTION DIAGNOSIS DEVICE, MALFUNCTION DIAGNOSIS METHOD, AND COMPUTER PROGRAM

PROBLEM TO BE SOLVED: To provide a malfunction diagnosis device that is able to accurately diagnose a malfunctioning component, a malfunction diagnosis method, and a computer program.SOLUTION: A malfunction diagnosis device has a model creation server 12 that acquires a sensor value of each sensor,...

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1. Verfasser: WAKAMORI TAKUMA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a malfunction diagnosis device that is able to accurately diagnose a malfunctioning component, a malfunction diagnosis method, and a computer program.SOLUTION: A malfunction diagnosis device has a model creation server 12 that acquires a sensor value of each sensor, computes, on the basis of a sensor value when a component is normal and a sensor value when the component is malfunctioning from among the acquired sensor values, a degree of contribution of each of the acquired sensor values to a malfunction of each component, and creates a table indicating the relations of the sensor values with degrees of contributions to component malfunctions. In addition, for each component, the device analyzes a main constituent by using a degree of contribution, and creates a malfunction component prediction model. When a sensor value is sent from a transceiver 15, the device refers to the malfunction component prediction model and computes the malfunction probability of each component. When there is a component whose malfunction probability exceeds a threshold probability, the device displays this component on a display terminal 16.SELECTED DRAWING: Figure 1 【課題】故障した部品を的確に診断することができる故障診断装置、故障診断方法、及びコンピュータプログラムを提供する。【解決手段】各センサのセンサ値を取得し、取得したセンサ値のうち、部品が正常時のセンサ値と、故障時のセンサ値に基づき、各センサ値の各部品故障に対する寄与度を演算し、センサ値の部品故障に対する寄与度との関係を示すテーブルを作成するモデル作成サーバ12を有する。更に、各部品について、寄与度を用いて主成分分析を行い、故障部品予測モデルを作成する。送受信機15よりセンサ値が送信されたとき、故障部品予測モデルを参照して、各部品の故障確率を演算する。故障確率が所定の閾値確率を超える部品が存在するとき、この部品を表示用端末16に表示する。【選択図】図1