公开(公告)号：US09709680B2

公开(公告)日：2017-07-18

申请号：US14017522

申请日：2013-09-04

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Henry Loehner

IPC: G01S19/20 ,  G01S19/13 ,  G01S19/03 ,  G01S19/21 ,  H04J3/06

CPC classification number: G01S19/13 ,  G01S19/03 ,  G01S19/215 ,  H04J3/0688

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

公开(公告)号：US20170351223A1

公开(公告)日：2017-12-07

申请号：US15683327

申请日：2017-08-22

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Henry Loehner

IPC: G04F10/10 ,  G01S19/23

CPC classification number: G04F10/10 ,  G01S19/23

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

公开(公告)号：US20140114608A1

公开(公告)日：2014-04-24

申请号：US14056170

申请日：2013-10-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Henry Loehner

IPC: G04F10/10

CPC classification number: G04F10/10 ,  G01S19/23

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

Abstract translation: 公开了使用独立时间源检测精密时间源故障的系统和方法。 另外，公开了基于GNSS接收机的计算位置来检测基于GNSS的精确时间源的故障。 此外，该系统还可以被配置为将从精度时间源导出的时间作为时间相关设备的精确时间基准分配。 在精度时间源发生故障的情况下，系统可以被配置为在保持期内将从第二精度时间源导出的时间分配为精度时间信号。

公开(公告)号：US09760062B2

公开(公告)日：2017-09-12

申请号：US14056170

申请日：2013-10-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Henry Loehner

IPC: G04F10/10 ,  G01S19/23

CPC classification number: G04F10/10 ,  G01S19/23

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

公开(公告)号：US20140111249A1

公开(公告)日：2014-04-24

申请号：US14057803

申请日：2013-10-18

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： David E. Whitehead ,  Shankar V. Achanta ,  Henry Loehner

IPC: H03K3/01

CPC classification number: H04J3/0688 ,  G01S19/00 ,  G06F1/14 ,  H02H7/261 ,  H02H7/28 ,  H03K3/01 ,  H04J3/0644

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

Abstract translation: 公开了使用独立时间源检测精密时间源故障的系统和方法。 另外，公开了基于GNSS接收机的计算位置来检测基于GNSS的精确时间源的故障。 此外，该系统还可以被配置为将从精度时间源导出的时间作为时间相关设备的精确时间基准分配。 在精度时间源发生故障的情况下，系统可以被配置为在保持期内将从第二精度时间源导出的时间分配为精度时间信号。

公开(公告)号：US20240295622A1

公开(公告)日：2024-09-05

申请号：US18500428

申请日：2023-11-02

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Henry Loehner ,  Naiden K. Spasov ,  Stephen F. Witt ,  Miralem Cosic ,  Jeff Bassett ,  Anatoliy V. Kozlov ,  Kenneth J. Van Den Heuvel

IPC: G01R35/00 ,  G01R15/16 ,  G01R19/165

CPC classification number: G01R35/005 ,  G01R15/16 ,  G01R19/16576

Abstract: A system for monitoring a voltage of a conductor of an electric power delivery system after automatic voltage sensor calibration. The system includes a sensor for capacitive coupling with an access point. The system includes an IED in electrical communication with the sensor to obtain signals therefrom. The IED may be configured to automatically calibrate to accommodate the signals from the conductor obtained using the sensor. The IED may provide an output depending on the determined voltage on the conductor.

公开(公告)号：US10379500B2

公开(公告)日：2019-08-13

申请号：US15683327

申请日：2017-08-22

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Henry Loehner

IPC: G04F10/10 ,  G01S19/23

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

公开(公告)号：US10122487B2

公开(公告)日：2018-11-06

申请号：US15349526

申请日：2016-11-11

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： David E. Whitehead ,  Shankar V. Achanta ,  Henry Loehner

IPC: H04J3/06 ,  H03K3/01 ,  G06F1/14 ,  G01S19/00 ,  H02H7/26 ,  H02H7/28

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

公开(公告)号：US20170063482A1

公开(公告)日：2017-03-02

申请号：US15349526

申请日：2016-11-11

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： David E. Whitehead ,  Shankar V. Achanta ,  Henry Loehner

IPC: H04J3/06 ,  G06F1/14 ,  H03K3/01

CPC classification number: H04J3/0688 ,  G01S19/00 ,  G06F1/14 ,  H02H7/261 ,  H02H7/28 ,  H03K3/01 ,  H04J3/0644

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

Abstract translation: 公开了使用独立时间源检测精密时间源故障的系统和方法。 另外，公开了基于GNSS接收机的计算位置来检测基于GNSS的精确时间源的故障。 此外，该系统还可以被配置为将从精度时间源导出的时间作为时间相关设备的精确时间基准分配。 在精度时间源发生故障的情况下，系统可以被配置为在保持期内将从第二精度时间源导出的时间分配为精度时间信号。

公开(公告)号：US09520860B2

公开(公告)日：2016-12-13

申请号：US14057803

申请日：2013-10-18

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： David E. Whitehead ,  Shankar V. Achanta ,  Henry Loehner

IPC: G01S19/20 ,  G01S19/34 ,  H03K3/01 ,  G06F1/14 ,  G01S19/00 ,  H04J3/06 ,  H02H7/26 ,  H02H7/28

CPC classification number: H04J3/0688 ,  G01S19/00 ,  G06F1/14 ,  H02H7/261 ,  H02H7/28 ,  H03K3/01 ,  H04J3/0644

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

Abstract translation: 公开了使用独立时间源检测精密时间源故障的系统和方法。 另外，公开了基于GNSS接收机的计算位置来检测基于GNSS的精确时间源的故障。 此外，该系统还可以被配置为将从精度时间源导出的时间作为时间相关设备的精确时间基准分配。 在精度时间源发生故障的情况下，系统可以被配置为在保持期内将从第二精度时间源导出的时间分配为精度时间信号。