| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To perform determination of failure occurrence and specification of a broken device, with respect to abnormality of monitoring information functions of a plurality of monitoring devices, disposed around a plant facility or an important monitoring management object. <P>SOLUTION: From at least three or more monitoring devices 1-3, the three devices or optionally adjacent three devices are taken out and called successively from one side second, first and third monitoring devices 2, 1 and 3. A monitoring information comparing device 7 compares monitoring information for overlapping monitoring areas 4 and 5 of the monitoring range of the first monitoring device, with the monitoring ranges of the second and third monitoring devices 2 and 3 via a line 6, to check the first to third monitoring devices 1-3 for monitoring functional abnormalities. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
