| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prepare for power failure or short break which can happen in the near future and to prevent system down by starting power supply in one system and doubling power feeding when a report is received from a management device, the power feeding is judged to be in an unstable state, and the system has been operated by the power supply from the other system only. <P>SOLUTION: The information processor 14 is provided with doubled power supply parts 11 and 12 and has: power supply abnormality detection circuits 111 and 121 for supplying the respective power supply parts with CD power supply of different systems, detecting warning potentials that output potentials do not reach minimum permissible potentials but voltage lowers to notify a diagnosis processor 15 of them as well; a history part 151 for recording the notification in the diagnosis processor 15 as history; an analysis part 152 for reading the history to judge whether or not the number of occurrence times of the warning potentials reaches a predetermined condition; and a notification part 154 for reporting the judgement made to a maintenance personnel terminal 2 or console 3. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
