| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve more secure state base maintenance and prevent an adverse effect of an unnecessary emergency stop command or the like onto a train operation by absolutely preventing an erroneous determination of abnormality sign due to an adverse effect of maintenance. <P>SOLUTION: The maintenance system of rolling stock includes an abnormality sign determination device that collects and analyzes sensor data or control command values of a rolling stock and determines an abnormality sign in the rolling stock. A maintenance determination device completely determines that the rolling stock is under maintenance on the basis of position data of the rolling stock or the arrival of a predetermined planned maintenance time. When it is determined that the rolling stock is under maintenance, an abnormality sign determination suppression device prohibits determination by the abnormality sign determination device or changes a threshold value to a value that causes abnormality sign detection to become difficult, thereby absolutely preventing an erroneous determination of abnormality sign due to an adverse effect of maintenance. <P>COPYRIGHT: (C)2013,JPO&INPIT |
