The detector (410) detects physical quantities relating to an operation of a vehicle air-conditioning device (300) at a predetermined sampling frequency to generate groups of time-series data items (TDS). A volatile tracking memory (440) has a work area to which the groups of time-series data items (TDS) for a tracking period is writable. A record holding power accumulator (450) supplies, to the tracking memory (440), power used for holding in the work area the groups of time-series data items (TDS). A writer (433) sequentially overwrites the groups of time-series data (TDS) to the work area of the tracking memory (440) and stops overwriting of the groups of time-series data items (TDS) to the work area when an abnormality occurs in the vehicle air-conditioning device (300).
RECORDING DEVICE FOR RAILROAD VEHICLE, AIR CONDITIONING DEVICE FOR RAILROAD VEHICLE, AND RECORDING METHOD FOR RAILROAD VEHICLE
AUFZEICHNUNGSVORRICHTUNG FÜR SCHIENENFAHRZEUG, KLIMAANLAGE FÜR SCHIENENFAHRZEUG UND AUFZEICHNUNGSVERFAHREN FÜR EIN SCHIENENFAHRZEUG
DISPOSITIF D'ENREGISTREMENT POUR VÉHICULE FERROVIAIRE, DISPOSITIF DE CLIMATISATION POUR VÉHICULE FERROVIAIRE ET PROCÉDÉ D'ENREGISTREMENT POUR VÉHICULE FERROVIAIRE
2023-04-05
Patent
Electronic Resource
English
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