公开(公告)号：EP3913836A1

公开(公告)日：2021-11-24

申请号：EP21178980.5

申请日：2012-04-13

Applicant: Howard University

Inventor： KIM, Charles J.

IPC: H04L1/24 ,  H04L12/26 ,  H04L27/00

Abstract: Data associated with at least one building condition or status is sensed by one or more sensors. The data from these sensors may be sent over a data bus and received by the central computer. In addition, a modulated signal may be transmitted by one or both of the transmitters across the data bus. The modulated signal is received at the receiver, which analyzes the received modulated signal, and determines whether an intermittent fault has occurred on the data bus based upon the analyzing. For example, the receiver may compare the received signal to an expected pattern and when a discrepancy exists, an intermittent fault is determined to exist. The receiver may also determine the location of the fault based upon the analysis.

公开(公告)号：EP2647262A2

公开(公告)日：2013-10-09

申请号：EP11844199.7

申请日：2011-11-29

Applicant: Howard University

Inventor： KIM, Charles J.

IPC: H05B37/02 ,  F21S2/00 ,  F21V23/00

CPC classification number: F21V23/0457 ,  F21S2/005 ,  F21W2131/406 ,  F21Y2105/10 ,  F21Y2113/13 ,  F21Y2115/10 ,  H05B33/0851 ,  H05B33/0869 ,  H05B37/029

Abstract: A lighting element is disposed in an array of lighting elements. At the lighting element, a lighting status of at least one neighboring lighting element is sensed. Independent of any other lighting element, a lighting adjustment for the lighting element by applying the sensed lighting status to a predetermined rule is determined. The lighting adjustment is applied to the lighting element to adjust an illumination of the lighting element.

Abstract translation: 照明元件设置在照明元件的阵列中。 在照明元件处，感测至少一个相邻照明元件的照明状态。 独立于任何其他照明元件，确定通过将感测到的照明状态应用于预定规则的照明元件的照明调整。 照明调节被施加到照明元件以调节照明元件的照明。

公开(公告)号：EP3224754A1

公开(公告)日：2017-10-04

申请号：EP15863918.7

申请日：2015-11-23

Applicant: Howard University

Inventor： KIM, Charles J.

IPC: G06F21/50 ,  G06F11/20

CPC classification number: G06F21/567 ,  G05B9/02 ,  G06F11/1487 ,  G06F11/1641 ,  G06F11/165 ,  G06F21/552

Abstract: A redundant and diverse secondary control system mirrors a primary control system but has some fundamental structural difference as compared to the primary control system to prevent a spread of a security breach from the primary control system to the secondary control system. The secondary control system may operate on different hardware built on different software written with different programming language as compared to the primary control system while performing the same function as that of the primary system. By hardware coding the algorithm to produce actuation signals, software based viruses and worms cannot interfere with the secondary control system's operation. A monitor device receives actuation signals from both the primary and secondary controls signals to determine whether an error occurred and to provide correct actuation signals to the controlled system.

Abstract translation: 冗余和多样化的辅助控制系统反映了主要控制系统，但与主要控制系统相比具有一些基本的结构差异，以防止安全漏洞从主要控制系统扩散到辅助控制系统。 与主控制系统相比，次控制系统可以在建立在用不同编程语言编写的不同软件上的不同硬件上运行，同时执行与主系统相同的功能。 通过对算法进行硬件编码以生成驱动信号，基于软件的病毒和蠕虫不会干扰辅助控制系统的操作。 监视器装置接收来自主控制信号和辅助控制信号的致动信号，以确定是否发生错误并向受控系统提供正确的致动信号。

公开(公告)号：EP2847601A1

公开(公告)日：2015-03-18

申请号：EP13787570.4

申请日：2013-05-06

Applicant: Howard University

Inventor： KIM, Charles J.

IPC: G01R31/08 ,  G01R31/12 ,  G01R31/02

CPC classification number: G01R31/083

Abstract: A distance from a measurement point to a fault in a three-phase circuit is determined. The measurement point is located at an output of a power sub-station and the three phase circuit has a loop circuit having an associated net fault line current and a ground current. A derivative of the net fault line current of the loop circuit as measured from the measurement point is calculated. An uncompensated distance to the sub-cycle fault using at least the derivative of the net fault current is determined, and configured, to compensate for the ground current of the loop circuit. The compensation is applied to the uncompensated distance to produce a compensated distance to the sub-cycle fault.

公开(公告)号：EP2700199A2

公开(公告)日：2014-02-26

申请号：EP12774777.2

申请日：2012-04-13

Applicant: Howard University

Inventor： KIM, Charles J.

IPC: H04L12/26 ,  H04L27/00

CPC classification number: G01R31/02 ,  H04B10/0771 ,  H04L1/243 ,  H04L25/0266 ,  H04L25/0268 ,  H04L27/02 ,  H04L27/10 ,  H04L27/18 ,  H04L41/0677 ,  H04L2001/0094 ,  Y04S40/166

Abstract: Data associated with at least one building condition or status is sensed by one or more sensors. The data from these sensors may be sent over a data bus and received by the central computer. In addition, a modulated signal may be transmitted by one or both of the transmitters across the data bus. The modulated signal is received at the receiver, which analyzes the received modulated signal, and determines whether an intermittent fault has occurred on the data bus based upon the analyzing. For example, the receiver may compare the received signal to an expected pattern and when a discrepancy exists, an intermittent fault is determined to exist. The receiver may also determine the location of the fault based upon the analysis.

公开(公告)号：WO2016085861A1

公开(公告)日：2016-06-02

申请号：PCT/US2015/062159

申请日：2015-11-23

Applicant: HOWARD UNIVERSITY

Inventor： KIM, Charles J.

IPC: G06F21/50 ,  G06F11/20

CPC classification number: G06F21/567 ,  G05B9/02 ,  G06F11/1487 ,  G06F11/1641 ,  G06F11/165 ,  G06F21/552

Abstract: A redundant and diverse secondary control system mirrors a primary control system but has some fundamental structural difference as compared to the primary control system to prevent a spread of a security breach from the primary control system to the secondary control system. The secondary control system may operate on different hardware built on different software written with different programming language as compared to the primary control system while performing the same function as that of the primary system. By hardware coding the algorithm to produce actuation signals, software based viruses and worms cannot interfere with the secondary control system's operation. A monitor device receives actuation signals from both the primary and secondary controls signals to determine whether an error occurred and to provide correct actuation signals to the controlled system.

Abstract translation: 冗余和多样化的二级控制系统反映了主控制系统，但与主控制系统相比具有一些基本的结构差异，以防止安全漏洞从主控制系统扩展到二级控制系统。 与主控制系统相比，辅助控制系统可以在不同的硬件上运行，该不同的硬件基于用不同的编程语言编写的不同的软件，同时执行与主系统相同的功能。 通过硬件编码该算法来产生致动信号，基于软件的病毒和蠕虫不能干扰二次控制系统的操作。 监视器装置从主控制信号和次控制信号接收致动信号，以确定是否发生错误并向受控系统提供正确的致动信号。

公开(公告)号：WO2012145246A2

公开(公告)日：2012-10-26

申请号：PCT/US2012/033543

申请日：2012-04-13

Applicant: HOWARD UNIVERSITY ,  KIM, Charles J.

Inventor： KIM, Charles J.

IPC: H04L12/26 ,  H04L27/00

CPC classification number: G01R31/02 ,  H04B10/0771 ,  H04L1/243 ,  H04L25/0266 ,  H04L25/0268 ,  H04L27/02 ,  H04L27/10 ,  H04L27/18 ,  H04L41/0677 ,  H04L2001/0094 ,  Y04S40/166

Abstract: Data associated with at least one building condition or status is sensed by one or more sensors. The data from these sensors may be sent over a data bus and received by the central computer. In addition, a modulated signal may be transmitted by one or both of the transmitters across the data bus. The modulated signal is received at the receiver, which analyzes the received modulated signal, and determines whether an intermittent fault has occurred on the data bus based upon the analyzing. For example, the receiver may compare the received signal to an expected pattern and when a discrepancy exists, an intermittent fault is determined to exist. The receiver may also determine the location of the fault based upon the analysis.

Abstract translation: 与至少一个建筑物状况或状态相关联的数据由一个或多个传感器感测。 来自这些传感器的数据可以通过数据总线发送并由中央计算机接收。 此外，调制信号可以由数据总线中的一个或两个发射器发送。 在接收机处接收调制信号，该接收机分析接收到的调制信号，并基于分析确定数据总线上是否发生间歇故障。 例如，接收机可以将接收到的信号与预期模式进行比较，并且当存在差异时，确定存在间歇性故障。 接收机还可以基于分析来确定故障的位置。

公开(公告)号：WO2010132353A3

公开(公告)日：2010-11-18

申请号：PCT/US2010/034228

申请日：2010-05-10

Applicant: HOWARD UNIVERSITY ,  KIM, Charles J.

Inventor： KIM, Charles J.

IPC: H04L12/26 ,  H04B10/08

Abstract: A signal is conducted from a controller module onto a network via a first coupling. The signal is transmitted across the network and received at one or more receiver modules via one or more second couplings. At the one or more receiver modules, the received signal is analyzed and based upon the analysis, a determination is made as to whether a fault has occurred in the network and/or where the occurrence occurred.

公开(公告)号：WO2010051221A1

公开(公告)日：2010-05-06

申请号：PCT/US2009/061770

申请日：2009-10-23

Applicant: HOWARD UNIVERSITY ,  KIM, Charles J.

Inventor： KIM, Charles J.

IPC: G01R31/02

CPC classification number: G01R31/024 ,  G01R31/008 ,  G01R31/086 ,  H04B3/46 ,  H04B3/546

Abstract: A fault determination apparatus includes a housing. The housing includes a circuit board disposed there within. The housing is shaped and dimensioned for non-intrusive placement within an existing electrical system. The circuit board is configured to provide one of a transmitter or a receiver within a fault determination system. A first set of connectors is disposed at a first side of the housing and a second set of connectors disposed at the second end of the housing. The first set of connectors and the second set of connectors are directly connected through the wires provided inside the apparatus while at least one wires under fault monitoring are tapped to the circuit board and configured so as to be electrically coupled to the existing electrical system.

Abstract translation: 故障确定装置包括壳体。 壳体包括设置在其内的电路板。 外壳的形状和尺寸适用于现有电气系统内的非侵入式放置。 电路板被配置为在故障确定系统内提供发射机或接收机之一。 第一组连接器设置在壳体的第一侧，并且第二组连接器设置在壳体的第二端。 第一组连接器和第二组连接器通过设置在设备内部的电线直接连接，同时至少一根故障监控线被分接到电路板并被配置为电耦合到现有的电气系统。

公开(公告)号：WO2013169656A1

公开(公告)日：2013-11-14

申请号：PCT/US2013/039722

申请日：2013-05-06

Applicant: HOWARD UNIVERSITY

Inventor： KIM, Charles J.

IPC: G01R31/08 ,  G01R31/12 ,  G01R31/02

CPC classification number: G01R31/083

Abstract: A distance from a measurement point to a fault in a three-phase circuit is determined. The measurement point is located at an output of a power sub-station and the three phase circuit has a loop circuit having an associated net fault line current and a ground current. A derivative of the net fault line current of the loop circuit as measured from the measurement point is calculated. An uncompensated distance to the sub-cycle fault using at least the derivative of the net fault current is determined, and configured, to compensate for the ground current of the loop circuit. The compensation is applied to the uncompensated distance to produce a compensated distance to the sub-cycle fault.

Abstract translation: 确定三相电路中从测量点到故障的距离。 测量点位于电力子站的输出端，并且三相电路具有具有相关联的净故障线电流和接地电流的回路电路。 计算从测量点测量的环路电路的净故障线电流的导数。 确定至少与净故障电流的导数对子周期故障的无补偿距离，并配置为补偿环路电路的接地电流。 补偿应用于无补偿距离，以产生到子周期故障的补偿距离。