Detecting apparatus, detection method, and program

A system for detecting defects in a physical operating body, the system comprising:

• a set of sensors configured to measure physical motion of the operating body to generate one or more data sequences that correspond to the physical motion of the operating body;
• a memory;
• and
• a processor communicatively coupled to the memory and the set of sensors, wherein the processor is configured to perform a method comprising:
• receiving the one or more data sequences from the set of sensors;
• temporally dividing the one or more data sequences into a plurality of divided data sequences, the plurality of divided data sequences being arranged according to an operating period of the operating body;
• obtaining a plurality of model components that correspond to a normal operation state of the operating body based on the operating period, each model component corresponding to a divided data sequence in the plurality of divided data sequences;
• calculating a plurality of non-periodic components using the plurality of divided data sequences and the plurality of model components;
• determining an operation state for the operating body based on at least the plurality of non-periodic components;
• and
• transmitting a notification that the operating body has an anomaly to another system in response to determining that the operation state for the operating body is not the normal operation state.