Patent ID: 8284051

Claim:
A security system comprising: a detecting unit that detects a dangerous substance; an identification section unit that identifies an inspection object; an alarm activating unit that activates an alarm; a security center apparatus; and a communication line that connects the detecting unit, the alarm activating unit, and the security center apparatus to one another, wherein the detecting unit includes a unit that transmits sensing information including at least detection information of the dangerous substance detected by the detecting unit, to the security center apparatus via the communication line, wherein the security center apparatus provides the sensing information with a management number: wherein the security center apparatus includes: a database where the sensing information including the at least detection information of the dangerous substance detected by the detecting unit, and received from the detecting unit, is recorded together with the management number, as a dangerous substance entry for managing the sensing information; a unit that compares the entry of the sensing information with entries of other sensing information previously recorded in the database, to determine multiple dangerous substance entries which have a same said management number; and a determination unit that determines a risk of the sensing information by considering the multiple dangerous substance entries in view of a predetermined determination standard; wherein the security center apparatus makes the alarm activating unit activate the alarm via the communication line, based on the result of the determination; wherein there are plural detecting units, and the plural detecting units communicate with the security center apparatus via the communication line; and wherein the predetermined determination standard is different for each management number of a plurality of management numbers.