SECURITY SYSTEM, PORTABLE TERMINAL AND SECURITY METHOD

摘要

PROBLEM TO BE SOLVED: To provide a security system capable of performing a security operation when a user of a portable terminal intrudes in a specific area.

SOLUTION: The security system 100 is provided with the portable terminal 10 with a bidirectional communication type RF-ID 15 and a server 20 which transmits a radio signal receivable by the RF-ID 15 in the specific area 40. The portable terminal 10 performs the security operation when the RF-ID 15 receives the radio signal from the server 20. The RF-ID 15 transmits a response signal to the server 20 when the radio signal from the server 20 is received and the server 20 performs the security operation when the response signal from the RF-ID 15 is received.

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