| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for monitoring the state of a car, which apparatus can carry out the preventive maintenance by analyzing the operating state of instruments. SOLUTION: The apparatus for monitoring the state of the car comprises an operating state information collecting means 5 for collecting time series data about the operating state of the instruments sampled for every required period of time during running of an electric rail car, a data server 7 for downloading and storing the time series data when the electric rail car has entered into a car barn, an operating state analyzing means 8 for preparing reference time series data from the time series data stored in the data server 7 by a statistical method and for extracting the singular points of new time series data newly obtained this time by comparing the new time series data with the reference time series data, and an outputting means 9 for outputting the reference time series data, the new time series data, and the singular points. COPYRIGHT: (C)2007,JPO&INPIT
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