An evaluation index calculation section (12) calculates an evaluation index using a measured vibration acceleration for each of plural measurement times. A multivariate analysis section (14) derives a category score for each of the plural measurement times by performing multivariate analysis employing a relationship equation in which the evaluation index is a target variable, travel speed is a quantitative explanatory variable, and measurement time is a qualitative explanatory variable. A change-in-condition evaluation section (16) evaluates a change in condition at a predetermined location on a track based on a change in the derived category scores for the plural measurement times. Track condition is thereby evaluated simply and at low cost without influence from variation in the travel speed of a railroad car.
TRACK STATE EVALUATION METHOD, DEVICE, AND PROGRAM
VERFAHREN, VORRICHTUNG UND PROGRAMM ZUR AUSWERTUNG DES GLEISZUSTANDS
PROCÉDÉ, DISPOSITIF ET PROGRAMME D'ÉVALUATION D'ÉTAT DE LA VOIE FERRÉE
2022-09-28
Patent
Electronic Resource
English
IPC: | B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
TRACK STATE MONITORING DEVICE, TRACK STATE MONITORING SYSTEM AND TRACK STATE MONITORING METHOD
European Patent Office | 2024
|TRACK GENERATION DEVICE, TRACK GENERATION METHOD, AND TRACK GENERATION PROGRAM
European Patent Office | 2022
|TRACK GENERATION DEVICE, TRACK GENERATION METHOD, AND TRACK GENERATION PROGRAM
European Patent Office | 2021
|TRACK STATE MONITORING DEVICE, TRACK STATE MONITORING SYSTEM AND TRACK STATE MONITORING METHOD
European Patent Office | 2022
|