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1. (CN101213718) Automated precision alignment of data in utility monitoring system

Office : China
Application Number: 200680023572.5 Application Date: 28.06.2006
Publication Number: 101213718 Publication Date: 02.07.2008
Grant Number: 101213718 Grant Date: 01.02.2012
Publication Kind : B
Prior PCT appl.: Application Number:PCTUS2006025445 ; Publication Number:2007005548 Click to see the data
IPC:
H02J 13/00
H02J 3/00
G01R 19/00
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
13
Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3
Circuit arrangements for ac mains or ac distribution networks
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19
Arrangements for measuring currents or voltages or for indicating presence or sign thereof
CPC:
H02J 13/0006
Y02E 60/74
Y04S 10/30
Applicants: Square D Co.
方D公司
Inventors: Bickel Jon A.
乔恩·A.·比克尔
Carter Ronald W.
罗纳尔德·W.·卡特尔
Curtis Larry E.
拉里·E.·库尔迪斯
Agents: lixiang yang
中国国际贸易促进委员会专利商标事务所 11038
Priority Data: 11174099 01.07.2005 US
Title: (EN) Automated precision alignment of data in utility monitoring system
(ZH) 公用事业监视系统中数据的自动化精确对准
Abstract: front page image
(EN) A data alignment algorithm that automatically aligns data from multiple monitoring devices to the same zero-crossings at the same point in time. Cycle-by-cycle frequency data is received from each monitoring device and a cross-correlation algorithm is performed to determine a correlation coefficient between a reference monitoring device and another monitoring device. The data of the other monitoring device is shifted by one cycle and another correlation coefficient is calculated by the cross-correlation algorithm. The data of the two monitoring devices is aligned at the point at which the maximum correlation coefficient is calculated or the point at which the correlation coefficient exceeds a threshold value. The clocks of the monitoring devices can also be synchronized at the same point of alignment.
(ZH)

自动地将来自多个监视设备的数据对准到相同时间点的相同零交点的算法。从每一个监视设备接收每个循环的频率变化数据,并执行互相关算法以确定基准监视设备和另一个监视设备之间的相关系数。将另一个监视设备的数据移动一个循环,通过互相关算法计算另一个相关系数。在计算出了最大相关系数的点或在相关系数超过阈值的点,将两个监视设备的数据对准。也可以在相同的对准点使监视设备的时钟同步。


Also published as:
EP1900076CA2613440ES2711960WO/2007/005548