• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.280-282
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• 2001

무선 어플리케이션 서비스 시스템 구축시 가장 중요한 역할을 담당하는 장비는 WAP(Wireless Application Protocol) 프록시 서버이다 WAP 프록시 서버는 WAP 프로토콜과 인터넷 TCP/IP 프로토콜을 중간에서 변환해 주는 역할을 한다. 따라서, 무선 단말기로부터 요청은 WAP 프록시 서버를 통해 유선망의 서버로 보내지게 되고, 서버로부터 보내진 무선 콘텐츠는 다시 WAP 프록시 서버를 통해 무선 단말기로 전해진다. 이때, 무선 컨텐츠가 WAP 프록시 서버에 캐싱된다면, 동일한 무선 콘텐츠 요청시, 유선망을 거치지 않고도 WAP 프록시 서버에서 무선 컨텐츠를 서비스 할 수 있을 것이다. 본 논문에서는 WAP 프록시 서버에 캐싱 기능을 추가하여, 그 성능을 분석하였다. 성능 측정을 위해 C와 서블릿으로 측정 모듈을 작성 했으며, 웹 브라우저를 통해 실시간으로 측정 결과를 확인 가능하도록 하였다.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.71-72
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• 2016

본 논문은 건식 내부 굴착 매립 간척공법(Dry Internal Project Land Digging Reclamation Method, DIPLDRM)[3] 호소의 대기 환경 개선을 위한 미세먼지 조절 IOT 모듈을 개발하는데 목적으로 하고 있다. 이를 위해 공기오염 중 인체에 가장 영향을 많이 미치는 미세먼지를 측정할 수 있는 공기오염 측정 시스템을 위한 공기 상태 변화를 Web 브라우저를 제안한다. 또한 본 연구는 외부 대기 상태와 디바이스로부터 측정된 내부 대기상태를 비교할 수 있도록 시각화함으로써 사용자의 편의성을 증대시킬 수 있을 것으로 판단된다.

• Journal of Digital Contents Society
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• v.8 no.4
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• pp.555-562
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• 2007

In this paper we present a system architecture for the distributed measurement system of instrumentation over the network. The proposed architecture allows remote control & monitoring of the instrument by using web browser.

• Journal of Digital Contents Society
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• v.9 no.4
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• pp.607-616
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• 2008

By the advancement of computer & network technology, the paridigm of 'Network Computer' has been realizing`. In what is called network computer, computer system and computing resource is incomparably seem to be expanded compared with conventional network technology[1]. Network connected computer system consitute a massive virtual computer, it is possible for people to use an enourmous amout of computing resource distributed widely through the network. It is also possible that we make client lightweight by the use of computer system & all shared computing resources on the network in our computer processing and we call this type of client system as thin-client. Thin-client and network computer are on and the same network paradigm in that both paradigm featuring the active use of computer system and resource on the network[2]. In network computer paragem, network itself is regarded as a basic platform for the transfer of application, so it is possible that client access remote serve system to run remote applications through the network[3]. In this paper, we propose the system architecture for the implementation of network computer by the use of Web browser, X window system and Pyjamas. By the use of network computer proposed in this paper, it is possible for people to run application on the server system as if he run local application, and it is expected to improve the security and maintenance efficiency.

• Journal of Industrial Convergence
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• v.17 no.2
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• pp.15-20
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• 2019

The purpose of this study is to provide customized experience learning service platform that enables consumers to easily search for various content information about on - site experiential learning, exhibitions, events, and culture, and to provide services. To provide customized experiential learning information that meets the requirements of the consumer. Beacon technology implemented through this study is a BLE technology that broadcasts a URL in Eddystone format developed by Google. This means that even if a user does not install a separate application, Making it easier and faster to access. Based on this, when the database of local cultural contents is completed, it will be expanded to the whole country, and it is expected that more diverse and high quality self - directed cultural contents experiential learning activity education programs will be provided to consumers by diversifying contents and expanding the market.

• Journal of Broadcast Engineering
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• v.11 no.3 s.32
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• pp.276-283
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• 2006

This paper analyzes metadata workflow from creation to browsing, and discusses metadata authoring and browsing technology. Unlike usual multimedia authoring, broadcast metadata authoring means metadata editing synchronized with video. In order to make practical application of other systems, the result is in XML or MXF(Material eXchange Format) based on common metadata scheme. The MXF Browser developed with the consideration of broadcast metadata that is time-synchronized with AV content provides not only metadata authoring capability but also advanced content browsing services such as summary playback and highlight browsing based on metadata multi-track.

• The Journal of the Korea Contents Association
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• v.6 no.8
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• pp.8-19
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• 2006

In the ubiquitous environment, the real-time remote control and monitoring technology for intelligent robot creates service as a sharable and independent of time-location for various contents to get from a sensor or camera of the robot. In this paper, We propose the real-time monitor and control mechanism for intelligent robot called URC(Ubiquitous Robotic Companion). URC are intelligent robots designed as to interact with external digital device that can communicate through wire or wireless by integration the network and information technology into traditional robot. It has been carried out by implementing this technology into the target robot called ISSAC4 and proving its practical worth. We designed feasibly to control on remote site by web-browser. It guarantees a continuity of real-time image transferring by Client-Pull method.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.136-139
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• 2006

In this paper, We are proposed the real-time monitor and control mechanism for intelligent robot called URC(Ubiquitous Robotic Companion). URC are intelligent robots designed as to interact with external digital device that can communicate through wire or wireless by integration the network and information technology into traditional robot. In this paper, we implemented the result of this study into the target robot called ISSAC4 and proved its practical worth. We designed it as be able to control on remote by such web browser as anywhere and anytime that show a status information for several controllers, devices, actuators and sensors of robot and guarantee a continuity of real-time image transferring by Client-Pull method and moving control of robot.

• The Journal of the Korea Contents Association
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• v.12 no.5
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• pp.40-51
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• 2012

In this paper, we design and implement a SNS-web platform based video seminar system which supports effective information sharing and cooperation. The proposed system has 3 characteristics. First, a user can take part in Web-based video seminar without installing a specific hardware or software because our system has been developed with Java Web Start. Secondly, our system can be executed on various operating systems and internet web browsers. Thirdly, our system can support the expert knowledge sharing and cooperation among experts who are connected on SNS because the system operate on SNS-web platform. Finally, we show from our performance analysis that our system is efficient in terms of average delay time.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.564-567
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• 2005

In this paper, we develop RFID reader with integrated GPS functionality. Most RFID readers only read the Tag data attached on the products then send them to the local servers. However the new reader can get the location data of the products because of the integrated GPS module. One more feature is the TCP/IP port as well as commonly used serial port. We can transfer the Tag data very fast and can access direlectly by internet using web browsers.