公开(公告)号：US20210405105A1

公开(公告)日：2021-12-30

申请号：US17364061

申请日：2021-06-30

Applicant: Howard University

Inventor： Charles J. KIM

IPC: G01R31/08 ,  G06F17/17 ,  G01R31/52 ,  G01R31/58

Abstract: A method, computer program, and computer system is provided for fault detection in an electrical network. An inductance between a reference point and a fault is determined at a first time based on measuring a fault current. A resistance between the reference point and the fault may be determined at a second time based on measuring a differential of the fault current as zero. A location of the fault may be identified based on the inductance and the resistance.

公开(公告)号：US20150008938A1

公开(公告)日：2015-01-08

申请号：US14261642

申请日：2014-04-25

Applicant: HOWARD UNIVERSITY

Inventor： Charles J. KIM

IPC: G01R31/02

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了间歇故障。 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。