• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.101-104
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• 2002

In this parer, a novel architecture for Home gateway is Proposed. In home network system, there exist many different kinds of data types, like audio, video, and control information. And the communication is over multiple networks, like bluetooth, wireless LAN, USB, IEEE1394, and Power Line Communication (PLC). The hardware architecture of the Home gateway presented in this paper is based on ISO/1EC JTC 1/sc 2S/WG 1(1,2). The architecture proposed in this paper takes into account the characteristics of home network environment, so the Packets in the home network system can be processed very efficiently.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.10
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• pp.2052-2058
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• 2009

The standardized and open information model called common language and information exchange format should be firstly defined for the interoperable power system and two-way information exchange among the components of the power system. The information models and information exchange formats for power facilities and power system applications are being defined in power system area, but the information model and information exchange format for the consumer area are not being yet defined besides of metering information model. An architecture and open standard for the information exchange between energy service provider and consumer are required to provide various value added services through the networking with devices in consumer premise. In this paper, an architecture for the two-way communications between energy service provider and consumer is defined and psXML(power system XML) for the information exchange is designed.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.248-258
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• 2011

Hospital Kiosk is a useful means to decrease human resources and to extend service hour to non-working hour for the stance of hospital and to obtain useful services without time loss in waiting in lines for the stance of user. However, various kinds of information kiosks are respectively installed with independent functions, and they have bad usability due to complexity in manipulate and unclear information architecture. In this paper, we tried to analyze usability and respective functions of each kiosk and aimed to suggest alternative information architecture for the integrated hospital kiosk. We categorized users as patient, guardian and visitor and we conducted usability test and in-depth interview with each group of users. based on result analysis from the research, we could suggest proper information architecture for the integrated user centered hospital kiosk. The new information architecture for the integrated hospital kiosk has better accessibility to the menus which reflects users's preemptive needs and it includes more specific information that can support user tasks.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.441-447
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• 2017

In order to provide personalized services on the Web and for mobile services, it is necessary to collect and analyze information processed by users. Typically, information collected by users is managed online. Using information collected online may be sufficient to provide personalized service. However, in terms of O2O services, which are currently mixed with online and offline services, user information from the offline service can also be an important part of personalized service. Therefore, this study suggests an architecture to collect offline user information to provide more precise personalization services. The collection architecture includes Node Analyzer, Distance Checker, Holding Time Checker, and Cross Analyzer as core elements. This study also offers proposals for processing algorithms of key components that make up the proposed architecture. A case study collects user information of interest based on BLE in order to verify the proposed architecture and algorithms.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.5 no.2
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• pp.313-329
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• 2011

To provide a seamless network to customers, Internet service providers must promptly detect and control abnormal traffic. One approach is to shorten the traffic information measurement cycle. However, performance degradation is inevitable if traffic measurement servers merely shorten the cycle and measure all traffic. This paper presents a software architecture that can measure traffic more frequently without degrading performance by estimating the level of abnormal traffic. The algorithm in the architecture estimates the values of the interface group objects in MIB by using the IP group objects thereby reducing the number of measurements and the size of measured data. We evaluated this architecture on part of Internet service provider's IP network. When the traffic was measured 5 times more than before, the CPU usage and TPS of the proposed scheme was 7% and 41% less than that of the original scheme while the false positive rate and false negative rate were 3.2% and 2.7% respectively.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.10
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• pp.3275-3298
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• 2022

Cloud-based architectures for precision agriculture are domain-specific controlled and require remote access to process and analyze the collected data over third-party cloud computing platforms. Due to the dynamic changes in agricultural parameters and restrictions in terms of accessing cloud platforms, developing a locally controlled and real-time configured architecture is crucial for efficient water irrigation and farmers management in agricultural fields. Thus, we present a new implementation of an independent sensor-enabled architecture using variety of wireless-based sensors to capture soil moisture level, amount of supplied water, and compute the reference evapotranspiration (ETo). Both parameters of soil moisture content and ETo values was then used to manage the amount of irrigated water in a small-scale agriculture field for 356 days. We collected around 34,200 experimental data samples to evaluate the performance of the architecture under different agriculture parameters and conditions, which have significant influence on realizing real-time monitoring of agricultural fields. In a proof of concept, we provide empirical results that show that our architecture performs favorably against the cloud-based architecture, as evaluated on collected experimental data through different statistical performance models. Experimental results demonstrate that the architecture has potential practical application in a many of farming activities, including water irrigation management and agricultural condition control.

• Journal of Communications and Networks
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• v.9 no.4
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• pp.457-465
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• 2007

Native information provider(IP) anycast suffers from routing scalability issues and the lack of stateful communication support. For this reason, we propose architecture for scalable and transparent anycast services(ASTAS), a proxy-based architecture that provides support for stateful anycast communications, while retaining the transparency offered by native anycast. Dynamic resource assignment for each initiated session guarantees that a connection is established with the most suitable target server, based on network and server conditions. Traffic engineering in the overlay can be realized in an effective way due to the dissemination of aggregated state information in the anycast overlay. To minimize the total deployment cost for ASTAS architectures, we propose optimized proxy placement and path finding heuristics based on look-ahead information gathered in network nodes. Contrary to a regular integer linear program(ILP) formulation, these heuristics allow to optimize proxy placement in large networks. A use case on a European reference network illustrates that lower proxy costs enable proxy deployment closer to the end-users, resulting in a reduced network load.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.2
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• pp.233-245
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• 2010

This paper proposes security architecture, security audit framework, and audit check item. These are based on the security requirement that has been researched in the information system audit. The proposed information security architecture is built in a way that it could defend a cyber attack. According to its life cycle, it considers a security service and security control that is required by the information system. It is mapped in a way that it can control the security technology and security environment. As a result, an audit framework of the information system is presented based on the security requirement and security architecture. The standard checkpoints of security audit are of the highest level. It was applied to the system introduction for the next generation of D stock and D life insurance company. Also, it was applied to the human resources information system of K institution and was verified. Before applying to institutions, system developers and administrators were educated about their awareness about security so that they can follow guidelines of a developer security. As a result, the systemic security problems were decreased by more than eighty percent.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.25 no.1 s.212
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• pp.34-39
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• 2007

국내외적으로 차세대 아키텍처인 SOA(Service Oriented Architecture)에 대한 관심이 높아지고 있으며, 수년 내에 SOA가 일반적인 아키텍처가 될 것으로 전망되고 있다. 하지만, SOA를 실제로 구축하고 활용하기에는 많은 장벽들이 존재하고 있다. 본 논문에서는 SOA기반의 Application을 구축하기 위해 필요한 컴포넌트 규격에 대한 연구와 함께 기존의 분산 객체 컴포넌트를 확장하여 비즈니스 컴포넌트로 구축 가능하게 지원하는 SCA(Service Component Architecture)를 기반으로 SOA를 구축하는 방안을 제시하여, SOA의 장점인 유연성과 상호운용성을 보장하는 Application 구축에 활용이 가능하도록 하고, 이론 및 사상적인 측면에서 벗어나 현실화된 Architecture로써 SOA가 도입 될 수 있도록 하고자 한다.

• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.931-932
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• 2006

This paper proposes a task modeling architecture -.uFlow-.for home service robots that facilitates the developmental process and let developers implement their services with ease and efficiency.