| 摘要 |
PROBLEM TO BE SOLVED: To provide a supervisory camera system capable of efficiently identifying the cause of failure occurrence by selectively and collectively acquiring only image signals related to a caused alarm. SOLUTION: Each of cameras C1 to Cn carries out photographing when an alarm is detected or a server 12 issues a command. A flag is set to an image signal when the alarm is detected. The server 12 divides the cameras C1 to Cn into a plurality of groups, and when receiving an image signal with the flag set thereto from any one of the cameras C1 to Cn, the server 12 particularizes other cameras belonging to the same group and issues a command to the particularized camera. COPYRIGHT: (C)2005,JPO&NCIPI
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