RAIL BREAKAGE DETECTION SYSTEM AND RAIL BREAKAGE DETECTION METHOD
SWITCHING DEVICE FOR SWITCHING FROM DOUBLE-ACTING POINT SWITCH TO SINGLE-ACTING POINT SWITCH
TRACK STATE DIAGNOSTIC SYSTEM AND TRACK STATE DIAGNOSTIC METHOD
FAILURE SIGN DIAGNOSIS SYSTEM AND FAILURE SIGN DIAGNOSIS METHOD FOR DOOR SYSTEM
FAILURE PREDICTIVE DIAGNOSTIC SYSTEM AND FAILURE PREDICTIVE DIAGNOSTIC METHOD FOR DOOR SYSTEM
OBSTACLE AVOIDANCE SUPPORT SYSTEM AND MAINTENANCE VEHICLE
DERIVATION METHOD, DERIVATION DEVICE, DERIVATION SYSTEM AND PROGRAM
DERIVATION METHOD, DERIVATION DEVICE, DERIVATION SYSTEM AND PROGRAM