公开(公告)号：US20240077868A1

公开(公告)日：2024-03-07

申请号：US17930251

申请日：2022-09-07

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Veselin Skendzic ,  Travis C. Mallett ,  Syed Ali Kazi ,  Harshad S. Aherao ,  Dhruba P. Das ,  Sandesh Chitnis

IPC: G05B23/02 ,  G01R15/18 ,  G06F1/26 ,  G06F13/42 ,  H03M1/12

CPC classification number: G05B23/0283 ,  G01R15/181 ,  G06F1/266 ,  G06F13/4221 ,  H03M1/123

Abstract: A configurable multi-sensor analog input may be utilized to connect a power system sensor to an intelligent electronic device. The configurable multi-sensor analog input may include an input port comprising a plurality of input pins and configured to receive electrical signals from one of a plurality of types of power system sensors. The configurable multi-sensor analog input may additionally include a plurality of input channels, each of the plurality of input channels coupled to a subset of the input pins, wherein the subset of input pins in electrical communication with of the plurality of types of power system sensors power system sensor is configured to selectively activate one of the plurality of input channels. A multiplexer may be in electrical communication with the plurality of input channels and configured to select an output based on the subset of input pins in electrical communication with one of the plurality of types of power system sensors.

公开(公告)号：US11811947B2

公开(公告)日：2023-11-07

申请号：US17462246

申请日：2021-08-31

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Colin Gordon

IPC: G06F21/00 ,  H04L9/32 ,  G06F16/23 ,  G06F21/64

CPC classification number: H04L9/3242 ,  G06F16/2379 ,  G06F21/64

Abstract: An intelligent electronic device (IED) of an electric power delivery system includes processing circuitry a memory that includes instructions. The instructions, when executed by the processing circuitry, are configured to cause the processing circuitry to receive first data via parallel redundancy protocol (PRP), generate a first integrity check value using a media access control security (MACsec) integrity check function based on the first data, receive second data via PRP, generate a second integrity check value using the MACsec integrity function based on the second data, compare the first integrity check value and the second integrity check value with one another, and output a notification in response to determining that the first integrity check value and the second integrity check value do not match one another.

公开(公告)号：US20230336347A1

公开(公告)日：2023-10-19

申请号：US17659029

申请日：2022-04-13

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： George W. Masters

IPC: H04L9/32 ,  H04L9/06

CPC classification number: H04L9/3213 ,  H04L9/0643 ,  H04L9/3239

Abstract: The present disclosure relates to token-based authentication that uses authentication data including a personal identification number (PIN). For example, an issuer may obtain privilege information including the PIN. The issuer may combine the privilege information with authentication information. The issuer may determine an issuer hash value based on the combined privilege information and authentication information. The issuer may determine an encrypted hash value based on the issuer hash value and a private key of the issuer. The issuer may combine the privilege information with the encrypted hash value as a token. The issuer may then issue the token. The receiver can restrict allowed operations appropriately based on success decrypting the encrypted hash.

公开(公告)号：US20230324936A1

公开(公告)日：2023-10-12

申请号：US17718496

申请日：2022-04-12

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Erin C. Jessup ,  Austin Edward Wade

IPC: G05F1/46 ,  G01R19/165

CPC classification number: G05F1/462 ,  G01R19/16538

Abstract: The present disclosure pertains to devices, systems, and methods for monitoring a direct current (DC) system. In one specific embodiment, a system may include a centralized protection and control (CPC) system. The CPC system may include a DC interface configured to be in electrical communication with a first DC system and a communication subsystem configured to receive a first measurement, from a remote device, of at least one electrical parameter of the first DC system. The CPC system may also include a DC monitor subsystem to generate a second measurement of at least one electrical parameter of the first DC system based on the electrical communication between the DC interface and the first DC system and generate a comparison of the first measurement and the second measurement. An action subsystem may generate an action based on the comparison between the first measurement and the second measurement.

公开(公告)号：US20230318341A1

公开(公告)日：2023-10-05

申请号：US17711216

申请日：2022-04-01

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Kevin R. Rogerson ,  Anthony L. Zarate ,  Johnathan A. Hubert

IPC: H02J7/00 ,  H02J7/34

CPC classification number: H02J7/00712 ,  H02J7/0047 ,  H02J7/0013 ,  H02J7/345

Abstract: An active capacitor discharge tool may include circuitry for efficiently discharging a capacitor. The active capacitor discharge tool may include batteries (or regulated voltage sources) for actively discharging a capacitor using multiple discharge paths. The active capacitor discharge tool may alternatively short the capacitor to a ground connection using the multiple discharge paths based on a timing associated with a clock frequency of a clock signal. Discharging a capacitor by alternatively grounding the capacitor using different discharge paths may distribute a generated discharging heat and may discharge the capacitor faster. Moreover, when a capacitor includes stored electrical charges corresponding to a capacitor voltage lower than a sufficiently discharged voltage to enable an operator to handle the capacitor, the active capacitor discharge tool may short an anode and a cathode of the capacitor to discharge the capacitor to the ground connection voltage level.

公开(公告)号：US11750502B2

公开(公告)日：2023-09-05

申请号：US17463874

申请日：2021-09-01

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Tristan Lloyd Mullis ,  Rhett Smith

IPC: H04L45/24 ,  H04L45/74 ,  H04L9/40

CPC classification number: H04L45/24 ,  H04L45/74 ,  H04L63/0227 ,  H04L63/166 ,  H04L63/20

Abstract: This disclosure pertains to identifying and configuring an in-band controller operating on a host in a software defined network (SDN), the host configured to use a parallel redundancy protocol (PRP). In one embodiment, a system may include a network in communication with the host, the network comprising a plurality of switches interconnected with a plurality of physical links. The in-band controller is in communication with the network and includes a PRP identification subsystem to generate a packet configured such that the network forwards the packet back to the in-band controller, to analyze the packet and determine that the packet conforms to PRP, and to identify a first communication host in communication with the network and configured to operate using PRP. A traffic routing subsystem of the in-band controller may create a plurality of PRP communication flows between the in-band controller and the first communication host.

公开(公告)号：US11749984B2

公开(公告)日：2023-09-05

申请号：US17316939

申请日：2021-05-11

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Evan J. Penberthy ,  Brian James Peterson

IPC: H02H3/00 ,  H02H7/22 ,  H02H1/00

CPC classification number: H02H7/22 ,  H02H1/0007 ,  H02H1/0092

Abstract: Output circuit devices for use in electric power systems may include a first output subsystem for transmitting a first signal output via an output port to a component of the electric power system, an input subsystem for receiving and monitoring the first signal output transmitted by the first output subsystem, and a second output subsystem for transmitting another signal output to the component of the electric power system. The second output subsystem is to transmit the signal output in response to an indication from the input subsystem. Intelligent electronic devices (IEDs) and associated methods may include one or more output circuit devices.

公开(公告)号：US11733276B2

公开(公告)日：2023-08-22

申请号：US17811482

申请日：2022-07-08

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson ,  Shankar V. Achanta ,  Gregary C. Zweigle ,  Richard M. Edge

IPC: G01R31/08 ,  G01R19/165 ,  H02H7/26 ,  G01B17/00 ,  G01R19/25 ,  G01P15/18 ,  H02H1/00 ,  G01R31/12

CPC classification number: G01R19/2513 ,  G01B17/00 ,  G01P15/18 ,  G01R19/16571 ,  G01R31/085 ,  G01R31/1272 ,  H02H1/0007 ,  H02H1/0023 ,  H02H1/0092 ,  H02H7/26

Abstract: The present disclosure relates to systems and methods of sag in a power line. In an embodiment, a monitoring device may include a distance sensor and an operating parameter sensor. A processor of the monitoring device may acquire, via the distance sensor, a first distance measurement. The processor may acquire, via the operating parameter sensor, a first operating parameter measurement. The processor may provide an output signal indicating that the power line is sagging when a combination of the first distance measurement and the first operating parameter measurement exceed a first combined distance-operating parameter threshold.

公开(公告)号：US20230261991A1

公开(公告)日：2023-08-17

申请号：US18301750

申请日：2023-04-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Tristan Lloyd Mullis ,  Josh Powers

IPC: H04L45/64 ,  H04L45/7453 ,  H04L45/00

CPC classification number: H04L45/64 ,  H04L45/7453 ,  H04L45/38

Abstract: A software-defined network (SDN) rule modification counter system provides counters that track all changes and edits to rules at SDN controllers and SDN switches on an SDN. The system compares counters at the SDN controller and SDN switch to determine if they match. If the counters do not match, a change has been made to the rules. With the addition of rule edit statistics the SDN controller will now have visibility that a rule modification was performed. The SDN controller then verifies that the state of the device is the same as its expected state as a secondary integrity check. Based on the rule modification notification, changes to a central rules table at the SDN controller and changes to rule settings at the SDN switch are made according to pre-programmed logic.

公开(公告)号：USD990886S1

公开(公告)日：2023-07-04

申请号：US29768464

申请日：2021-01-29

Applicant: Schweitzer Engineering Laboratories, Inc.

Designer： Travis Movius ,  Jessica D. Klein ,  Jessica RaeAnn Rigney

Abstract: FIG. 1 is a top perspective view of a utility basket attachment for a travelnig bin showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left elevational view thereof;
FIG. 5 is a right elevational view thereof;
FIG. 6 is a back elevational view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a top perspective view thereof, shown in a state of use; and,
FIG. 10 is another top perspective view thereof, shown in state of use.
The broken lines showing portions of a traveling bin and tools depict environmental subject matter that forms no part of the claimed design.