Determination apparatus, determination system, determination method, and recording medium

A determination method comprising:

• receiving operation information corresponding to an action being performed by a machine to be diagnosed and a detection signal of a physical quantity that changes according to the action of the machine, wherein the machine performs an action including an outward movement and a return movement;
• taking out, from the detection signal, an operation detection signal indicating that the machine is operating, based on the operation information;
• extracting feature information of the operation detection signal;
• selecting, from the feature information, particular feature information to be compared with a plurality of reference feature information;
• and
• determining a machining section of the machine in the feature information, based on the plurality of reference feature information and the particular feature information
• wherein circuitry is configured to perform a process of combining the operation information acquired in the outward movement with the operation information acquired in the return movement based on a determination that (a) a time from a stop of acquisition of the operation information of the outward movement to a start of acquisition of the operation information of the return movement is equal to or shorter than a threshold time and (b) the machine is in a predetermined operating state.

A non-transitory recording medium storing a plurality of program codes which, when executed by one or more processors, causes the processors to perform a method, the method comprising:

• receiving operation information corresponding to an action being performed by a machine to be diagnosed and a detection signal of a physical quantity that changes according to the action of the machine, wherein the machine performs an action including an outward movement and a return movement;
• taking out, from the detection signal, an operation detection signal indicating that the machine is operating, based on the operation information;
• extracting feature information of the operation detection signal;
• selecting, from the feature information, particular feature information to be compared with a plurality of reference feature information;
• and
• determining a machining section of the machine in the feature information, based on the plurality of reference feature information and the particular feature information, wherein circuitry is configured to perform a process of combining the operation information acquired in the outward movement with the operation information acquired in the return movement based on a determination that (a) a time from a stop of acquisition of the operation information of the outward movement to a start of acquisition of the operation information of the return movement is equal to or shorter than a threshold time and (b) the machine is in a predetermined operating state.