Abstract:
PURPOSE: An error detecting device of a periodic driving system, a processing device including the periodic driving system, an error detecting method of the periodic driving system, and a computer program are provided to understand a difference between an error situation and a normal situation sufficiently regardless of deterministic or probabilistic values, thereby detecting the error of the periodic driving system accurately. CONSTITUTION: A data acquisition unit(31) acquires time series data from a data logger. A condition setting unit(32) sets a condition for detecting an error. A translational error operation unit(33) calculates a translational error from the time series data. A probability distribution output unit(34) calculates the probability distribution of the translation error. A histogram preparation unit(35) prepares the histogram of the probability distribution. An error determination unit(36) determines the error of a periodic driving system by comparing the prepared histogram with a normal sound model histogram and an error sound model histogram. [Reference numerals] (1) Non-contact microphone sensor; (11) Data logger; (12) Control unit; (13) Main memory unit; (14) External memory unit; (2) Free amp; (21) Operation unit; (22) Display unit; (23) Carrier unit; (24) Normal noise screening unit; (300) Rotation driving system; (31) Data acquisition unit; (32) Condition setting unit; (33) Translational error operation unit; (34) Probability distribution output unit; (35) Histogram preparation unit; (36) Error determination unit; (37) Rotation determination unit; (38) Disturbance noise determination unit; (39) Display process unit; (41) Collection time series data; (42) Embedded vector data; (43) Nearest vector data; (44) First translational error data; (45) Second translational error data; (46) Probability distribution data; (47) Histogram data; (51) Program group; (52) Normal sound model data; (53) Error sound model data; (54) Disturbance noise model data; (55) Error sound determination data; (56) Inspection condition data