HEALTH MANAGEMENT SYSTEM, FAULT DIAGNOSIS SYSTEM, HEALTH MANAGEMENT METHOD, AND FAULT DIAGNOSIS METHOD

摘要

An objective is to identify the health state of mechanical equipment and provide information usable for determining maintenance work timing or the like. A health management system includes a time-series data acquisition unit configured to acquire multi-dimensional sensor data and environmental data from mechanical equipment; a first discrimination unit configured to quantify the equipment state of the mechanical equipment by a statistical method using normal data as learning data; a second discrimination unit configured to quantify the health state indicating the performance or quality of the mechanical equipment by a statistical method using normal data; and an output unit configured to display and/or output to the outside the quantified equipment state and health state.

主权项

1. A fault diagnosis system of diagnosing a fault of mechanical equipment, the system comprising:
a time-series data acquisition unit configured to acquire, as time-series data, sensor data from a plurality of sensors installed in the mechanical equipment, or the sensor data and environmental data indicating an installation environment of the mechanical equipment; a multi-dimensional vector calculation unit configured to calculate a multi-dimensional vector extending from a normal state to a fault state of the mechanical equipment by a statistical method using the time-series data as learning data; a state estimation unit configured to estimate an equipment state or health state of the mechanical equipment using the multi-dimensional vector; a starting point change detection unit configured to detect whether a starting point position of the multi-dimensional vector calculated by the multi-dimensional vector calculation unit changes by a predetermined value or more, the multi-dimensional vector calculated from time-series data acquired by the time-series data acquisition unit in a period before and after a maintenance work is performed on the mechanical equipment; a sensor data extraction unit configured to extract, from the time-series data, sensor data that contributes to the change in the starting point position of the multi-dimensional vector; and an output unit configured to display or output to an outside the extracted sensor data as an index indicating the health state of the mechanical equipment, wherein the environmental data, if included in the time-series data, includes at least one type of data among event data indicating an operation state of the mechanical equipment, operation data indicating an operation time of the mechanical equipment, load data indicating a load state of the mechanical equipment, and maintenance history data indicating a history of the maintenance work of the mechanical equipment.