• 제목/요약/키워드: Intelligent Distribution

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SCADA 기능과 전기품질 온라인 감시 및 배전설비 열화감시 기능을 갖는 배전지능화 시스템 개발 (Development of intelligent distribution automation system with the function of substation SCADA, power quality monitoring and diagnosis condition monitoring)

  • 하복남;이성우;신창훈;서인용;장문종;박민호;윤기갑;송일근;이병성;이정철;남궁원
    • 전기학회논문지
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    • 제59권10호
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    • pp.1776-1786
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    • 2010
  • Intelligent distribution automation system have total monitoring and control capability. The system covers substation, distribution network, distributed generations and customers at HV system. Various intelligent distribution facilities installed at distribution systems have voltage sensor, current sensor, aging monitoring sensor. Intelligent Feeder Remote Terminal Unit (IFRTU) tied to intelligent distribution facilities process information from facilities and it checks information of fault, power quality and aging of distribution facilities. The information is transmitted to master station through communication line. The master station have remote monitoring system covers substation, distribution network, distributed generations and customers. It also have various application programs that maintain optimal network operation by using information from on-site devices.

배전지능화 시스템을 위한 배전계통 구분개폐기 교체 우선순위 결정에 관한 연구 (A Study on the Prioritization of Sectional Switchgear Replacement for Intelligent Distribution Automation in Distribution System)

  • 성인제;채희석;문종필;서인용;김재철
    • 조명전기설비학회논문지
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    • 제29권9호
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    • pp.51-58
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    • 2015
  • Intelligent distribution automation system includes operating a switchgear of distribution system remotely when switchgear are not available to operate quickly. This system makes it possible to reduce the interrupt time. It also aims to improve the reliability of customers. Currently, Intelligent distribution automation improves the reliability by replacing manual switchgear, which is installed as sectional switchgear. However the prioritization of the replacement for the switchgear is required for its intellectualization. Many studies have been conducted related with prioritization of switchgear replacement. But it is difficult to interpret and apply to the power distribution system. That is because most of the studies just considers customer numbers for prioritizing the replacement. In this paper presents an algorithm to determine the intelligent swichgear replacement priority considering customer number, load quantity and interruption cost. Further, this algorithm is verified by using system reliability index.

지능형 통합 생산 물류 시스템의 동기화된 시스템 설계 (A Synchronous System Design of an Intelligent-Integrated Production & Logistics Systems)

  • 배재호;왕지남
    • 산업공학
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    • 제12권2호
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    • pp.222-236
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    • 1999
  • This paper presents a design and implementation of an intelligent-integrated production-logistics systems. The situation considered here is that there are multiple manufacturing plants and multiple distribution centers. Effective distribution resource and production planning are required to reduce inventory cost and to avoid inventory shortage. We propose an intelligent forecasting scheme of each distribution centers, adaptive inventory replenishment planning, distribution resource planning, and integrated production planning system. In forecasting a huge number of on-line model identification is performed using neural network approximation capability. An efficient adaptive replenishment planning and distribution resource planning are also presented in connection with forecasting scheme. An appropriate production is also requested based on production lead-time and the results of distribution planning. Experimental simulations are presented to verify the proposed approach using real data.

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Study on the Distribution Environmental Characteristics of Unmanned Stores

  • Soyeon, PARK
    • 유통과학연구
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    • 제21권3호
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    • pp.101-111
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    • 2023
  • Purpose: The first purpose of this study is deriving in-store characteristics that affect the experience of customers using unmanned stores and reveals the value of major services that customers feel and experience. Also, an empirical analysis is conducted on the effect of intelligent consumption value after using unmanned stores on consumption emotions and continuous use intention, and the modulating effect of customers' untact tendency on environmental characteristics and the value of intelligent services is verified. Research design, data and methodology: Samples were taken from 186 people who visited the unmanned store from April to June 2022 to investigate the research model. Results: It was found that the environmental characteristics of unmanned stores had a positive effect on the intelligent service value. Also, the higher the value of intelligent service, the stronger the influence on consumption emotions, and the higher the value of the intelligence service and consumption emotions, the stronger the impact on the intention to use intention. The untact propensity played a role in controlling the relationship between ease of using technology and the intelligent service value and the relationship between spatial arrangement and functionality and intelligent service value. Conclusion: In order to improve unmanned store service in the trend of spreading unmanned stores, it is necessary to not only improve the technology using convenience in terms of store environmental characteristics but also create innovative consumption experiences in terms of space layout, function, and convenience of payment.

퍼지측도의 auto-연속성과 집합치 쇼케이적분 (The autocontinuity of fuzzy measures and set-valued Choquet integrals)

  • 장이채;전종덕
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2001년도 춘계학술대회 학술발표 논문집
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    • pp.1-3
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    • 2001
  • In this paper, we define the convergence in measure and convergence in distribution for set-valued Choquet integrals. Using there definitions, we discuss convergence theorems for set-valued Choquet integrals.

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Usability Evaluation Scale for Product of Intelligent Homecare based on Retail Consumer

  • KWON, Jieun;LEE, Jin-Suk
    • 유통과학연구
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    • 제17권12호
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    • pp.55-62
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    • 2019
  • Purpose: The number intelligent homecare products are focused on the development of technology, resulting in a lack of realistic environments or requirements for consumers. The purpose of this paper is to define the consumer and context for intelligent homecare products and to develop a usability evaluation scale. Research design, data and methodology: For this study, first, consumer and contexts related to intelligent homecare products were analyzed through literature review. Second, the primary usability evaluation factors were derived for intelligent homecare products by collecting the factors related to usability evaluation and conducting in-depth interviews with experts. Third, the second usability evaluation factors were derived through survey and statistical analysis based on the derived usability evaluation factors. Results: As a result, users of intelligent homecare products were classified as primary users and secondary consumers and six related contexts. The usability evaluation scale was established with four factors - Functionality, Error, Convenience, and Emotion - and 13 items. Conclusions: This study can be the basis for developing and distributing products that meet the consumer environment and requirements related to intelligent homecare products that will contribute to securing the competitiveness of companies and developing the technology and service value of related industries.

실현성분포의 개정에 의한 베이지안 퍼지 가설 검정 (Bayesian an Fuzzy Hypotheses by Revision of Possibility Distribution)

  • Kang, Man-Ki;Lee, Chang-Eun;Park, Kue-Tak
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2001년도 추계학술대회 학술발표 논문집
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    • pp.349-352
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    • 2001
  • We propose one properties of Bayesian fuzzy hypotheses testing by revision for prior possibility distribution and posterior possibility distribution using weighted fuzzy hypotheses H$\sub$0/($\theta$) versus H$_1$($\theta$) on $\theta$.

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A Note on Possibilistic Correlation

  • Hong, Dug-Hun
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제9권1호
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    • pp.1-3
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    • 2009
  • Recently, Carlsson, Full\acute{e}$r and Majlender [1] presented the concept of possibilitic correlation representing an average degree of interaction between marginal distribution of a joint possibility distribution as compared to their respective dispersions. They also formulated the weak and strong forms of the possibilistic Cauchy-Schwarz inequality. In this paper, we define a new probability measure. Then the weak and strong forms of the Cauchy-Schwarz inequality are immediate consequence of probabilistic Cauchy-Schwarz inequality with respect to the new probability measure.

지능망에서 서비스 제어 로직의 호 분배 서비스 특성을 위한 방법 (Methods for Call Distribution Service Feature of Service Control Logic in Intelligent Network)

  • Tae-Gyu Kang;Su-Ki Paik
    • 인터넷정보학회논문지
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    • 제2권4호
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    • pp.1-10
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    • 2001
  • 본 논문에서는 지능망에서 서비스 제어 로직의 호 분배 서비스 특징에 대한 요구사항을 정의한다. 또한. 각 가입자마다 지정한 호 분배률에 따라 호 분배할 수 있도록 호 분배 메커니즘을 제안한다. 호 분배 메커니즘은 지능망에서 정보료 수납대행 서비스에서 발전되었다. 본 논문에서의 호 분배 메커니즘은 순환 분배 또는 계층 분배 방식이 아닌 퍼센티지 분배 방식을 채택하였다. 호 분배 메커니즘은 호 입력, 출력, 호 분배 처리 로직 부, 랜덤넘버 생성기 가입자 데이터베이스 등으로 구성된다. 본 논문에서는 호 분배 메커니즘을 위한 실제적인 구현 알고리즘을 제시하고. 이를 위한 호 분배 결정 지시 산출 방법을 제안하였다. 호 분배 결정 지시 산출 방법에는 C 언어에서 제공하는 rand( ) 함수, 시스템 클럭, 제안된 알고리즘 등이 있다. 최적의 호 분배 메커니즘을 위하여, 3가지 방법에 대한 발생 패턴. 발생 수 등을 측정하여 평가하였다.

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