公开(公告)号：US20220255557A1

公开(公告)日：2022-08-11

申请号：US17172447

申请日：2021-02-10

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Eric Andrew Silk ,  Peter S. LaDow ,  Matthew J. Halladay

IPC: H03M7/40 ,  G05B19/042 ,  H02J13/00 ,  H02J3/00

Abstract: The present disclosure pertains to systems and methods to compress an input signal representing a parameter in an electric power system. In one embodiment, a system includes a data acquisition subsystem to receive an input signal comprising a plurality of high-speed representations of electrical conditions. A linear prediction subsystem generates an excitation signal estimate based on the input signal, a plurality of linear prediction coefficients based on the input signal, and an estimated signal based on the excitation signal estimate and the plurality of linear prediction coefficients. An error encoding subsystem may generate an encoding of an error signal based on a difference between the input signal and the estimated signal. A non-transitory computer-readable storage medium may store an encoded and compressed representation of the input signal comprising the excitation signal estimate, the plurality of linear prediction coefficients, and the encoding of the error signal.

公开(公告)号：US11509329B2

公开(公告)日：2022-11-22

申请号：US17172447

申请日：2021-02-10

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Eric Andrew Silk ,  Peter S. LaDow ,  Matthew J. Halladay

IPC: H03M7/00 ,  H03M7/40 ,  G05B19/042 ,  H02J3/00 ,  H02J13/00 ,  H04B3/54 ,  G01R21/133 ,  G01R21/00

Abstract: The present disclosure pertains to systems and methods to compress an input signal representing a parameter in an electric power system. In one embodiment, a system includes a data acquisition subsystem to receive an input signal comprising a plurality of high-speed representations of electrical conditions. A linear prediction subsystem generates an excitation signal estimate based on the input signal, a plurality of linear prediction coefficients based on the input signal, and an estimated signal based on the excitation signal estimate and the plurality of linear prediction coefficients. An error encoding subsystem may generate an encoding of an error signal based on a difference between the input signal and the estimated signal. A non-transitory computer-readable storage medium may store an encoded and compressed representation of the input signal comprising the excitation signal estimate, the plurality of linear prediction coefficients, and the encoding of the error signal.