| 摘要 |
PROBLEM TO BE SOLVED: To provide a safer security system capable of appropriately changing a security system alert level according to change in security states.SOLUTION: A security system 1 comprises: a controller 3 that is installed in a specified security zone R; and detection means 2 that detects an abnormality in the security zone R and transmits an abnormality detection signal i to the controller 3 when detecting the abnormality in the security zone R. The controller 3 comprises: alarm issuance determination means 31 that determines whether to issue an alarm on the basis of the abnormality detection signal i; determination condition change means 32 that changes determination conditions for the alarm issuance determination means 31 to determine whether to issue the alarm; and security information reception means 33 that receives security information in target areas including the security zone R. The determination condition changing means 32 changes the determination conditions on the basis of the security information received by the security information reception means 33. |
