| 摘要 |
PROBLEM TO BE SOLVED: To provide a security system for promptly guarding vicinity of an installation place of a sensor, even when the sensor fails. SOLUTION: The security system has a security device 28 storing undetected information of a detector in a security cancel mode, and sending the undetected information when it is changed to a security start mode, a center device 6 receiving the undetected information and determining that the undetected installation place of the detector as an intensive monitoring place, and a movable body 30 forcibly guarding the intensive monitoring place on the basis of intensive monitor information. COPYRIGHT: (C)2007,JPO&INPIT
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