A time series sensor data processing device is provided. The time series sensor data processing device includes: a frame generating unit configured to generate a plurality of frames from time series sensor data acquired from a sensor, each of the frames having a predetermined frame size, the sensor being provided in an apparatus; a time information adding unit configured to add a value indicating corresponding time information to each of the generated frames; and a determining unit configured to determine presence or absence of an abnormality of the apparatus by using a neural network, the neural network learning a combination of each of the plurality of frames and the value indicating the corresponding time information and a combination of a data pattern of each frame stored in advance and predetermined timing.
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