Patent ID: 8750716
Filing Date: 2014-06-10
Classification: H04B,H04J

Abstract:
1. A system for automatic power adjustment of an optical network system, comprising electric-adjustable optical attenuators and a power adjustment module configured in a network management board, wherein, the electric-adjustable optical attenuators is embedded in a line output port of a service forwarding board, a line input port of an optical amplification (OA) board and a line input port of the service forwarding board respectively, and is configured to adjust powers of the service forwarding board and/or the OA board; the power adjustment module is configured to calculate and judge whether a power adjustment is required for the OA board and/or the service forwarding board according to power relevant parameters reported by each OA board and each service forwarding board, and when determining that the adjustment is required, trigger the electric-adjustable optical attenuator on a corresponding OA board and/or service forwarding board to perform the power adjustment; wherein the power adjustment module specifically comprises a first calculation adjustment unit and a second calculation adjustment unit, wherein, the first calculation adjustment unit is configured to judge whether a current output optical power reported by the service forwarding board is greater than a target output optical power preset by the service forwarding board and trigger the electric-adjustable optical attenuators on the corresponding service forwarding board when determining that the current output optical power reported by the service forwarding board is greater than the preset target output optical power; and the second calculation adjustment unit is configured to calculate and then obtain a single-wave expected input optical power of the OA board according to an optical power gain, a saturation output optical power and a wavelength number of an input wave reported by the OA board and trigger the electric-adjustable optical attenuators on the corresponding OA board after determining that a current single-wave input optical power reported by the OA board is greater than the single-wave expected input optical power of the OA board.