To provide a security system which manages the number of residents in a security area and prevents or suppresses single residence of the one who is permitted to enter a building and a system which prevents setting a burglar prevention or the like from being forgot.
A control part 10 is equipped with an entranced/exit monitoring means which stores an entrance/exit history of an individual who is identified by a personal identification device such as an individual identification device 5, a weight sensor 11 or the like provided to a two-door entrance/exit permitting device 1, that is, checks the number of people entering/exiting within a security area 100 and the number of residents calculating means which finds a difference between the number of entering people and the number of existing people and calculates the number of present people. When the number of residents calculated by the number of residents calculating device becomes one, warning information is outputted into the security area by a warning outputting device 2 and the last resident is promoted to leave. On the other hand, when the last person forgets to set a burglar prevention system 3 before the leaves, exit of the last resident is limited by the two-door entrance/exit permitted device 1.
YAMAGUCHI YOSHIHIRO
YAMAMOTO TOSHIYUKI
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