To provide a security system detecting only an abnormal state of a suspicious person by an electric wave sensor in an enclosed space wherein privacy of an individual is required.
In this security system, because disposing the electric wave sensor in a state that the electric wave sensor is concealed in the enclosed space such as a toilet, a bathroom, or an elevator, a detection range is wide as compared to an optical-system sensor, and the detection not making a user of the enclosed space aware is possible. Because excluding movement of equipment generated in the space and estimating movement of the unsuitable suspicious person or abnormal person from a position/a movement direction/a velocity change, a difference with an equipment user can be easily detected, and information useful to crime prevention or rescue can be immediately transmitted to an optimum place.
COPYRIGHT: (C)2007,JPO&INPIT
IWATA KENGO
NAGAISHI MASAYUKI
MURATA KENSUKE
TSUJITA MASAMI
ABE TOMOYUKI
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