To provide a security service such as home security on demand by a metered charging system.
This security service management system 2 has a security service management terminal 10 and a center device 5. The security service management terminal 10 has a sensor control part 21 for transmitting a detection signal acquired from a sensor 12 to a monitor 7 or a user terminal 8, an operation history recording part 21 for recording the operation history of the sensor 12, and a service history report part 22b for transmitting the operation history to the center device 5. The center device 5 has a rate calculation part 52b for calculating the rate based on the operation history of the sensor 12 received from the security service management terminal 10. According to this, the rate only for the service used by a user can be charged.
SUZUKI TOSHIHIRO