• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.2808-2810
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• 2000

Most measuring devices are equipped with RS232 interface or GPIB interface for communicating with computers. If the measuring devices can be accessed by a server computer, the valuable information from the devices can be effectively shared with other computer via internet. VRML is a web based technology for specifying and delivering three-dimensional interactive visualizations over the internet through a web browser. This paper proposes a remote 3-dimensional monitoring system for digital multimeter equipped with RS232 interface by utilizing VRML.

• 대한안전경영과학회지
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• 제4권3호
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• pp.67-78
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• 2002

Automated manufacturing systems are applied to shop floors as tools for increase of productivity and quality and the decrease of manufacturing lead times and industry accidents. One of the most important issue of the present day is the application of Internet. The development of Internet technologies makes manufacturing enterprises break spacial barriers between users and shop floors, and collect various field data in remote sites. In this research, an Internet-based remote control system for a small-sized automated storage and retrieval system is developed for the purpose of real-time monitoring and control of automatic production equipment. The developed system has a client-server architecture and sends real-time images of the automated storage and retrieval system to clients by an CCD camera connected to a server.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2009년도 춘계학술대회
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• pp.725-728
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• 2009

본 논문은 농촌이나 도심외곽의 대규모 비닐하우스 단지 등에서 비닐하우스 내부의 환경을 관리자가 직접 하우스 내부에 상주하지 않고도 자신의 컴퓨터에서 인터넷으로 접속하여 원격으로 감시하기 위한 시스템에 관한 것이다. 본 논문에서는 온도나 습도 등 비닐하우스 내부의 다양한 환경에 대한 모니터링이 가능한 원격 감시시스템을 테스트 모형을 사용해서 구현하고자 한다. 구현하고자 하는 테스트 모형은 계측용으로는 온도, 습도, 연기 및 적외선 센서를 사용하고, 제어용으로는 AC 220V 전구를 사용해서 USN 시스템 환경을 구현한다. 또한 윈도우용 모니터링 소프트웨어는 NI Labview를 사용해서 개발하고 DAQ 보드와 USN 제어보드를 연동해서 하우스 내부의 환경을 모니터링 할 수 있게 한다. 그리고 CCD 카메라 시스템과 이미지 Grab 보드를 연동해서 원격으로 하우스 내부를 실시간 감시할 수 있게 한다. 원격 접속용 컴퓨터 서버는 윈도우용 Apache 웹 서버와 PHP 및 MySQL ODBC를 연동해서 로컬에 구축하고, 사용자가 인터넷 웹브라우저를 사용해 서버에 접속하면 원격으로 하우스 내부의 환경을 모니터링이 가능하도록 인터넷 통신시스템을 구축한다.

• 제어로봇시스템학회논문지
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• 제7권7호
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• pp.632-639
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• 2001

This paper proposes an improved architecture of web-based monitoring systems for monitor of processes in plants from the soft real-time point of view. The suggested model is designed to be able to guarantee the temporal and spatial consistency and transmit the monitoring data periodically via the intranet and the Internet. The model generates one thread for monitoring management, one DB thread, one common memory, and corresponding monitoring threads to clients. The monitoring thread is executed during the smaller time than the execution time of the process used in the conventional methods such as CGI and servlet method. The Java API for the server API, VRML, EAI(External Authoring Interface) and Java Applets for efficient dimensional WEB monitoring are used. The proposed model is implemented and tested for a FMS plant, Some examples show that the proposed model is useful one.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권1호
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• pp.99-118
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• 2013

Electrocardiograms (ECGs) are widely used by clinicians to identify the functional status of the heart. Thus, there is considerable interest in automated systems for real-time monitoring of arrhythmia. However, intra- and inter-patient variability as well as the computational limits of real-time monitoring poses significant challenges for practical implementations. The former requires that the classification model be adjusted continuously, and the latter requires a reduction in the number and types of ECG features, and thus, the computational burden, necessary to classify different arrhythmias. We propose the use of adaptive learning to automatically train the classifier on up-to-date ECG data, and employ adaptive feature selection to define unique feature subsets pertinent to different types of arrhythmia. Experimental results show that this hybrid technique outperforms conventional approaches and is therefore a promising new intelligent diagnostic tool.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권2호
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• pp.807-825
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• 2020

In recent years, business environments have become more complex; therefore, enterprises must be capable of responding flexibly and agilely. For these purposes, effective enterprise systems service monitoring and early decision making based on the same, emerge as core competency of the enterprise. In addition, enterprise system techniques that filter meaningful data are needed to event processing. However, the existing study related with this is nothing but discovering of service faults by monitoring depending upon API of BPEL engine or middleware, or is nothing but processing of simple events based on low-level events. Accordingly, there would be limitations to provide useful business information. In this study, we present an extended event processing model that enables delivery of more valuable and useful business information through situation detection. Primarily, the event processing architecture in an enterprise system is proposed as a definite approach, and then define an event meta-model suitable for the proposed architecture. Based on the defined model, we propose the syntax and semantics of the elements that make up the event processing language include various and progressive event operators, the rules, complex event pattern, etc. In addition, an event context mechanism is proposed to analyze more delicate events. Finally, the effectiveness and applicability of proposed approach is presented through a case study.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권6호
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• pp.3104-3120
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• 2017

The intelligent monitoring system has been successfully applied in many fields such as: monitoring of production lines, transportation, etc. Smart surveillance systems have been developed and proven effective in some specific areas such as monitoring of human activity, traffic, etc. Most of critical application monitoring systems involve object tracking as one of the key steps. However, task of tracking of moving object is not easy. In this paper, the authors propose a method to implement human object tracking in outdoor environment based on human features in shearlet domain. The proposed method uses shearlet transform which combines the human features with context-sensitiveness in order to improve the accuracy of human tracking. The proposed algorithm not only improves the edge accuracy, but also reduces wrong positions of the object between the frames. The authors validated the proposed method by calculating Euclidean distance and Mahalanobis distance values between centre of actual object and centre of tracked object, and it has been found that the proposed method gives better result than the other recent available methods.

• 인터넷정보학회논문지
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• 제13권3호
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• pp.107-114
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• 2012

본 논문에서는 고객의 불만관리 및 상담원의 상담품질 관리를 위한 고객센터 자동 모니터링 시스템에 대한 연구를 진행하였다. 제안된 시스템에서는 평상/화남의 2가지 감성에 대한 음성 감성인식 기술과 핵심어인식 기술을 사용하여 상담내역에 대한 보다 정확한 모니터링이 가능하고, 욕설, 성희롱 등의 언어폭력을 일삼는 고객에 대한 전문상담 및 관리가 가능하다. 서로 다른 환경에서 구축된 이종 음성 DB를 이용하여 불특정 고객들의 질의 음성에 안정적으로 동작할 수 있는 알고리즘을 개발하였으며, 실제 고객센터 상담내역 데이터를 이용하여 성능을 검증하였다.

• International Journal of Internet, Broadcasting and Communication
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• 제7권2호
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• pp.109-112
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• 2015

The Korean electric railway is growing rapidly such as speed of 300km/h in high speed section and 230km/h in the conventional railway section. But, power supply failure occurs because of loss of contact, defective catenary system and high speed vehicle. Therefore preventive maintenance way based reliability has been applied. Typical example is the facility inspection method using trolley inspection system. But it is required differentiated inspection method to prevent problem such as inspection errors. In this paper, a study on the trolley sliding condition inspection system using monitoring techniques is performed for performance enhancement of inspection system. It proposed the efficient maintenance method through monitoring the deviation and height of contact wire after installing inspection system on the top of train which operates in the metropolitan area. Inspection errors were decreased by virtually monitoring the video of faulty facilities. Also those facilities were identified through the impact sound analysis and tests at the main catenary section.

• 한국인터넷방송통신학회논문지
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• 제12권6호
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• pp.285-289
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• 2012

본 논문에서는 유비쿼터스 컴퓨팅에 의한 농장 정보화 시스템을 설계하였다. 이를 위하여 임산물 생육을 위한 관수시설을 설치하였고 레이더 센서를 장착한 통합 센싱 시스템을 온도와 습도, 풍향 등을 측정하기 위해 구축하였다. 또한 현장 근무자들이 임산물의 생육 조건들을 직접 제어하고 모니터링할 수 있도록 관리 프로그램을 제공하였으며, 데이터베이스를 구축하여 모든 센서들을 연결한 모니터링 시스템과 관리 시스템에서 획득한 정보로 생육 환경을 분석하기 위해 저장하도록 하였다.