Time calibration method for security system using sensors

Details Time calibration method for security system using sensors Time calibration method for security system using sensors

2006-04-04

2006-04-04

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Timing

C702S116000

Reexamination Certificate

active

07024325

ABSTRACT:
Among multiple surveillance devices for mechanical security monitoring provided in a security system using sensors at least one of the multiple surveillance devices is equipped with a receiver for receiving standard time data and the standard time data received by the receiver is sent over a distribution line to required surveillance devices not equipped with receivers. This enables highly accurate time calibration among the multiple surveillance devices for mechanical security monitoring to be efficiently achieved using a power-line carrier (PLC) technology and, as such, allows sharing of accurate time data among the surveillance devices.

REFERENCES:
patent: 5374936 (1994-12-01), Feng
patent: 5801940 (1998-09-01), Russ et al.
patent: 6789182 (2004-09-01), Brothers et al.
patent: 10036016 (1998-02-01), None

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