Title:
ELECTRICAL LOAD DETERMINATION APPARATUS AND METHOD USING MODIFIED MFCC
Document Type and Number:
WIPO Patent Application WO/2019/182166
Kind Code:
A1
Abstract:
An electrical load determination apparatus and method using a modified MFCC are disclosed. According to a particular embodiment of the present invention, an electrical load-specific feature vector showing a clear difference in an electrical load-specific current signal waveform can be efficiently extracted by using a predetermined number of filters of frequency bands that differ from the frequency bands used in a conventional MFCC algorithm, and processing time and size can be reduced by performing a modified MFCC algorithm. In addition, the accuracy of arc accident cause determination of an electrical load identified using a feature vector of a measured current signal can also be improved by selecting an arc mode matched with the identified electrical load when the arc of the identified electrical load occurs and performing an arc analysis of the identified electrical load through an arc analysis algorithm corresponding to the selected arc mode, and the safety of the identified electrical load can be evaluated on the basis of the arc analysis result. Therefore, power supply control is performed through a relay provided to a plug of the identified electrical load according to the safety evaluation result of the identified electrical load such that the energy saving and the safety of the identified electrical load can be improved.
Inventors:
CHOI DONG-HWAN (KR)
LIM YOUNG-BAE (KR)
KIM DONG-WOO (KR)
LEE KI-YEON (KR)
MOON HYUN-WOOK (KR)
LIM YOUNG-BAE (KR)
KIM DONG-WOO (KR)
LEE KI-YEON (KR)
MOON HYUN-WOOK (KR)
Application Number:
PCT/KR2018/003143
Publication Date:
September 26, 2019
Filing Date:
March 19, 2018
Export Citation:
Assignee:
KOREA ELECTRICAL SAFETY CORP (KR)
International Classes:
G01R19/25; G01R15/18; G01R23/167; G06F17/14; G06N7/04
Foreign References:
| KR101299183B1 | 2013-08-22 | |||
| JP2014509396A | 2014-04-17 | |||
| KR20080063128A | 2008-07-03 | |||
| KR20110035087A | 2011-04-06 | |||
| JPH063376A | 1994-01-11 |
Attorney, Agent or Firm:
LEE, Un Cheol (KR)
Download PDF: