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公开(公告)号：US20170248635A1
公开(公告)日：2017-08-31
申请号：US15056319
申请日：2016-02-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Carl V. Mattoon , Travis L. Mooney
IPC: G01R13/02 , G01R21/133 , G01R31/40
CPC classification number: G06F11/00 , G01R19/2513
Abstract: The present disclosure pertains correcting linear interpolation errors. In one embodiment, a system comprises an input configured to receive the periodic signal at a first sampling rate and an output configured to provide an interpolated representation of the periodic signal at a second sampling rate. A linear interpolation subsystem may establish a ratio between the first sampling rate and the second sampling rate to determine a slip frequency. The linear interpolation subsystem creates an interpolated representation of the periodic signal based on the ratio. The interpolated representation of the periodic signal includes a deterministic error attributable to interpolation. A linear interpolation correction subsystem may correct the deterministic error attributable to the linear interpolation subsystem and create a corrected interpolated representation. An application interface subsystem may provide the corrected interpolated representation to an application.
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公开(公告)号：US20170211669A1
公开(公告)日：2017-07-27
申请号：US15007770
申请日：2016-01-27
Applicant: Schweitzer Engineering Laboratories, Inc.
CPC classification number: F16H21/44 , H01H71/00 , H01H71/56 , H01H2071/042
Abstract: This disclosure relates to various embodiments of rotary actuation devices that may be utilized in a variety of applications. In one embodiment, a rotary actuation device is configured to transition between a first position and a second position in response to each of a manual adjustment, an activation of an electrical actuator, and a force generated by a deck device. The rotary actuation device may be at least one deck device configured to exert a force in response to a condition. The force may cause the rotary actuation device to transition between the first position and the second position. The rotary actuation device may further include an electrical actuator configured to generate a motion upon activation. A rotary latch mechanism coupled to the electrical actuator and may cause the rotary actuation device to transition from the first position to the second position.
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公开(公告)号：US20170207792A1
公开(公告)日：2017-07-20
申请号：US15417083
申请日：2017-01-26
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Travis C. Mallett
CPC classification number: H03M1/1071 , G01R19/2509 , G01R22/10 , G01R35/00 , H03F3/04 , H03F2200/129 , H03M1/0631 , H03M1/1009 , H03M1/1076 , H03M1/1245 , H03M1/34
Abstract: The present disclosure provides systems and methods for identifying and reporting failures of an analog to digital (A/D) conversion system. The systems and methods may detect and report a problem of input circuitry of an A/D converter and/or an A/D converter itself. For example, an identifiable characteristic can be introduced into the input signal provided to an A/D converter. The A/D converter may output a digital value that includes the identifiable characteristic of the A/D converter input. A monitoring system may determine and/or report a change in, or a failure of, the A/D converter or input circuitry thereto, based on the identification, non-existence of, or variation in the identifiable characteristic in the digital output.
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公开(公告)号：US09709682B2
公开(公告)日：2017-07-18
申请号：US13887602
申请日：2013-05-06
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Shankar V. Achanta
CPC classification number: G01S19/215 , H04K3/22 , H04K3/65 , H04K3/90
Abstract: The present application discloses detecting manipulation of GNSS signals using a second time source. If two or more GNSS constellation signals are being detected, the phase error between the GNSS constellation signals may be monitored. When the phase error drifts, then manipulation is determined. The integrity of a GNSS constellation signal may be monitored using an internal time source such as a crystal oscillator by monitoring a slope of the free running counter at the detected rising edges of a pulse-per-second signal from the GNSS constellation. If more than two GNSS constellations are monitored, a voting scheme may be used to determine the manipulated GNSS constellation.
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公开(公告)号：US09686125B2
公开(公告)日：2017-06-20
申请号：US14803661
申请日：2015-07-20
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Rhett Smith , Marc Ryan Berner , Jason A. Dearien , Josh Powers
IPC: H04L12/701 , H04L12/24 , H04L12/939 , H04L12/803
CPC classification number: H04L41/0654 , H04L41/147 , H04L43/087 , H04L43/0894 , H04L47/122 , H04L49/557 , Y04S40/166 , Y04S40/168
Abstract: The present disclosure pertains to systems and methods for assessing reliability of communication links in a software defined network (SDN). In one embodiment, a system may include an SDN architecture subsystem configured to generate SDN architecture information and a bandwidth subsystem configured to generate bandwidth information. A latency subsystem may receive the bandwidth information from the bandwidth subsystem and may be configured to generate latency information using the bandwidth information. A failover subsystem may receive the SDN architecture information, the bandwidth information, and the latency information and generate a failover assessment and a failover route for the communication link. A reliability assessment subsystem may receive the SDN architecture information, the bandwidth information, and the latency information, and the failover assessment and generate a reliability assessment. A traffic routing subsystem may receive the reliability assessment and route data traffic to the failover route based on the reliability assessment.
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Patent Agency Ranking
公开(公告)号：US20170160301A1
公开(公告)日：2017-06-08
申请号：US14962155
申请日：2015-12-08
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Marcos A. Donolo
Abstract: Disclosed herein is a shaft-mounted sensor for determining a rotational component of a rotating shaft. The rotational component may be a rotational speed and an angular position of the rotating shaft. The shaft-mounted sensor may include an accelerometer for measuring a radial acceleration or a tangential acceleration. The rotational component of the rotating shaft may be calculated using one or both of the measured radial acceleration and the tangential acceleration. The shaft-mounted sensor may be in wireless communication with a device for monitoring and protecting rotating machinery.
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公开(公告)号：US20170110875A1
公开(公告)日：2017-04-20
申请号：US15294580
申请日：2016-10-14
Applicant: Schweitzer Engineering Laboratories, Inc.
CPC classification number: H02H3/50 , G01R31/021 , G01R31/085 , G01R31/11 , G01R31/40 , H02H1/0007 , H02H7/22 , H02H7/263 , H02H7/265
Abstract: The present disclosure pertains to systems and methods for obtaining and processing high-frequency electric power system measurements for control and monitoring of an electric power system. High-frequency measurements may be used to detect traveling waves and/or to detect faults in the electric power system. In various embodiments, a processing device may receive high-frequency electric power system measurements from each of a local location and a remote location and may process the high-frequency electric power system measurements to identify and locate a fault. The occurrence of and location of a fault and may be used to implement protective actions to remediate identified faults.
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公开(公告)号：US20170102444A1
公开(公告)日：2017-04-13
申请号：US15293171
申请日：2016-10-13
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： David E. Whitehead , Tony J. Lee , Zachary King Sheffield , Tracey G. Windley
CPC classification number: G01R35/00 , G01R31/086 , G01R31/11 , G01R31/3272
Abstract: A testing apparatus for imposing a traveling wave signal on an electric system signal for testing a fault detector is disclosed herein. The fault detector may be configured to simulate a fault at a particular location by controlling the timing of the traveling wave signal. The testing apparatus may be configured to impose multiple traveling wave signals to test the accuracy of the fault location determined by the fault detector. The testing apparatus may be configured to determine the calculation accuracy of the fault detector. The testing apparatus may impose a traveling wave signal on a signal simulating an electrical signal on an electric power delivery system. The testing apparatus may be used to test capabilities of a fault detector of detecting a fault using traveling waves or incremental quantities.
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公开(公告)号：US20170046895A1
公开(公告)日：2017-02-16
申请号：US14823219
申请日：2015-08-11
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Dennis Gammel , George W. Masters , Kylan T. Robinson
IPC: G07C9/00
CPC classification number: G07C9/00134 , G07C9/00174 , G07C9/00571 , G07C9/0069 , G07C2209/04 , H04W4/08 , H04W4/80
Abstract: Systems and methods are disclosed that provide for management of resources of one or more systems included in an access-controlled area of a distributed site of an electric power delivery system. In certain embodiments, one or more users entering and access-controlled area may be identified via physical access control credentials provided to an associated access control system. A determination may be made as to whether the users have access rights to one or more hardware and/or software resources of systems included in the access-controlled area. Based on the determination, control signals may be generated by the access control system to enable and/or disable associated resources.
Abstract translation: 公开了提供对包括在电力输送系统的分布式站点的访问控制区域中的一个或多个系统的资源的管理的系统和方法。 在某些实施例中，可以通过提供给相关联的访问控制系统的物理访问控制凭证来识别一个或多个用户输入和访问控制区域。 可以确定用户是否具有对包括在访问控制区域中的系统的一个或多个硬件和/或软件资源的访问权限。 基于该确定，控制信号可以由访问控制系统生成以启用和/或禁用相关资源。
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公开(公告)号：US20170026292A1
公开(公告)日：2017-01-26
申请号：US14803773
申请日：2015-07-20
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Rhett Smith , Marc Ryan Berner
IPC: H04L12/801 , H04L12/26
Abstract: The present disclosure pertains to systems and methods of monitoring communication devices and communication links in a software defined network (SDN). In one embodiment a system may include a data bus and a communication interface in communication with the data bus. The system may further include a communication link monitoring subsystem configured to receive an indication of a status of the communication devices and the communication links over time. The system may associate the status of the communication devices and the communication links over time. The system may determine a deviation from normal parameters based on a current status, and may assess a likelihood of a change in the status based on the deviation from normal parameters. If necessary, a traffic rerouting subsystem configured to reroute data traffic to a failover path based on the likelihood of a change in the status.
Abstract translation: 本公开涉及在软件定义网络（SDN）中监视通信设备和通信链路的系统和方法。 在一个实施例中，系统可以包括与数据总线通信的数据总线和通信接口。 该系统可以进一步包括通信链路监视子系统，该子系统被配置为随时间接收通信设备和通信链路的状态的指示。 该系统可以随着时间将关联通信设备和通信链路的状态相关联。 系统可以基于当前状态确定与正常参数的偏差，并且可以基于与正常参数的偏差来评估状态改变的可能性。 如果需要，配置了根据状态发生变化的可能性将数据流量重新路由到故障转移路径的流量重新路由子系统。
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