• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.8
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• pp.1842-1850
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• 2013

ETSI M2M Platforms provide general infra services for machine-to-machine communication. In this paper, we propose a service-level integration methodology which can integrate a ETSI M2M platform with heterogeneous web applications based on WSDL 2.0. Considered heterogeneous web applications are the ones that use SOAP, HTTP and CoAP protocols for inter-communication. The proposed WSDL 2.0-based service-level integration methodology includes the followings; (1) We present a method of how to describe standardized M2M platform service interfaces into a WSDL 2.0 document. (2) A proposed web client generator is used to generates SOAP, HTTP and CoAP client codes from the WDSL 2.0 document. (3) We propose protocol conversion proxies which translate protocols into other protocols in web service run-time.

• KIISE Transactions on Computing Practices
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• v.21 no.9
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• pp.587-595
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• 2015

Several fields of science have traditionally demanded large-scale workflow support, which requires thousands of central processing unit (CPU) cores. In order to support such large-scale scientific workflows, large-capacity cluster systems such as supercomputers are widely used. However, as users require a diversity of software packages and configurations, a system administrator has some trouble in making a service environment in real time. In this paper, we present a container-based cluster management platform and introduce an implementation case to minimize performance reduction and dynamically provide a distributed computing environment desired by users. This paper offers the following contributions. First, a container-based virtualization technology is assimilated with a resource and job management system to expand applicability to support large-scale scientific workflows. Second, an implementation case in which docker and HTCondor are interlocked is introduced. Lastly, docker and native performance comparison results using two widely known benchmark tools and Monte-Carlo simulation implemented using various programming languages are presented.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.355-355
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• 2017

현재 국내외적으로 가뭄, 홍수 등 물 관련 재해 발생 규모가 커지고 빈도 또한 많아지고 있으며 이러한 자연재해 및 이상현상으로 인해 체계적인 대응을 위한 수재해와 관련된 연구들이 지속적으로 수행되고 있는 실정이다. 수재해 관련 연구를 수행함에 있어 많은 물관련 자료들이 필요하며, 이러한 자료들을 각 연구자별로 수집하여 수행하게 되는데 자료를 수집하는데 소요되는 시간 및 요구되는 정확도를 확보하지 못하는 경우가 발생하게 된다. 이처럼 강수량, 기온 등과 같은 기초데이터와 수위, 유량 등 물관련 데이터 등 연구 수행지원을 위한 체계적인 데이터 활용 및 체계 구축관련 연구가 필요하다. 이를 위해 수재해 관련 정보시스템에서는 데이터 연계 구축 항목으로 위성, 레이더 등 광역 관측 장비를 이용한 관측데이터와 관련 연구를 수행하는 기관의 데이터를 제공할 예정이다. 제공할 항목은 홍수, 가뭄 등 자체 생산된 수재해 관련 데이터와 공개된 데이터를 가지고 있는 미항공우주국(NASA) SEDAC(Socioeconomic Data and Applications Center)에서 제공해주는 약 51개의 토지이용도, 수재해, 물 등의 데이터가 있으며, 미국해양대기관리처(NOAA)에서 주제도별 데이터로 가뭄정보, 기온, 월평균강수, 월 총강수량 등이 있다. 자체 수집된 데이터를 UX기반의 형식으로 제공하며, 또한, 관련기관의 물관련 데이터를 해당 홈페이지 제공 및 연동 등의 방법과 데이터 DB화를 이용한 서비스 제공 방안 등으로 수재해 정보 서비스 사용자의 유연한 데이터 활용에 도움을 줄 수 있으며, 기초데이터를 사용자의 경험을 통한 UX디자인으로 수재해 정보 서비스를 구축할 예정이다. 이에 본 연구에서는 광역 관측 장비인 위성으로부터 생성된 강우와 증발산량, 토양수분량 등과 고정밀소형레이더 기반의 도심 내 국지호우를 예상할 수 있는 강수량 등을 제공해 줄 수 있으며, NASA와 NOAA의 데이터를 활용하여 물관련 연구 및 수재해 관련 연구 등에 도움을 주기 위해 기초조사 및 데이터 제공방법을 제시하였다. 국가 물 관련 재해 데이터를 관련 사용자들이 기초조사 및 분석할 때 쉽게 접근하며 사용할 수 있는 데이터 활용 방안연구에 도움을 줄 것으로 사료되며 관련 연구를 진행할 때 데이터 수집의 시간을 단축시키며 필요한 데이터의 정확도를 높일 것으로 판단된다.

• Journal of Advanced Navigation Technology
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• v.23 no.5
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• pp.367-372
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• 2019

With the development of various IT technologies, data generated in the ship can be controlled through CAN communication, autonomous operation, and information provision in various situation. In addition, electronic navigation vessels with various functions have emerged, and navigation and communication equipment used in these vessels are mainly following the NMEA standard. Currently, NMEA-0183 is still mainly used, but more efficient multimedia transmission processing method is needed for multimedia transmission and USN equipment compatible using NMEA-2000 standard. Furthermore, Ethernet-based ship control is required. However, this paper proposes a multimedia transmission scheme to be smoothly linked with existing ship devices by utilizing CAN communication that can be easily used in the ship.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1204-1212
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• 2008

This study enables to troubleshoot the problems of the existing dual system with the help of the implementation of totally dualized fault-tolerant system to L-CTC computer and HADAX, and equipments are simplified and systems are modernized with the addition of the control function, as a upgraded LCP control system, to L-CTC computer on the basis of WINDOWS based O/S switched from DOS environment. An error on Microlok, which is aninterlocking apparatus, forwarded to L-CTC computer ensures to handle the false data during the operation of the system. This paper discusses a sure way to prevent the deterioration of (SMRT) L-CYC system and to bolster its stability with formation of the dual system. Additionally, WINDOW based O/S consisting of L-CTC computer leads to simplification and modernization of facilities and enhances maintenance functions offering centralization for branch offices and machine rooms as well.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.6
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• pp.757-765
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• 2021

To carry out multi-domain operations included in the U.S. Department of Defense's national security strategy in 2018, timely data sharing between C4I systems is critical. Several studies of the Korean military have also raised the problems of interface and standardization between C4I systems, and it is necessary to establish a new plan to solve this problem. In this study, a solution to the problem was derived through case analysis that the U.S. Department of Defense has been pursuing for about 20 years to implement the data strategy after establishing the data strategy in 2003. and by establishing a data strategy suitable for the ROK military C4I system operating environment, developing a data model, selecting a standard for data sharing, and proposing a shared data development procedure, we intend to improve the data sharing capability between ROK military C4I systems.

• Convergence Security Journal
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• v.20 no.4
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• pp.47-59
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• 2020

The Army, which is dreaming of a military leap forward through the fourth industrial revolution, needs to also consider the side effects and adverse functions of the fourth industrial revolution. In particular, this study conducted an analysis of whether it was consistent with the global technological trend of normal 'military security'. This paper focuses on the countermeasures that could result from 4th industrial revolution by utilizing the text-mining technique and social network technique of big data. 1. Active promotion of a convergence program with private, public, militaryand industrial, academic, and solidarity, 2. Information Sharing for International Cooperation and Cooperation in Cyber security, 3. Military Innovation and Military Unsymmetric Cyber security innovation, 4.The Establishment of Military Security Convergence Interface Management System in accordance with the Fourth Industrial Revolution, 5. Cooperation in the transition from technology engineering to social technology, 6. Establishing a military security governance system in the military, 7. Specifying confidential military digital data We look forward to providing useful information so that the results of this study can help develop the military and enhance military confidentiality.

• Journal of the Korea Organic Resources Recycling Association
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• v.20 no.1
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• pp.23-30
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• 2012

In the state that re-evaluation of calculating optimum amount of incineration in the future is needed, as considering the amount of waste, increase of heat value and change in floating population in each area in city B, the purpose of this research was to predict optimum available capacity in incineration plant and to study alternatives for the amount of disposal in each incineration plant based on the available capacity that was predicted. As a result of predicting the change in population based on progress of population in city B in the past, it is expected that an overall population is decreasing, but in some areas, population is concentrated due to increased apartment complexes, showing similar figures as the present. Moreover, when predicting the amount of waste through forecasting population, it is considered that the amount of waste by decreased population is also decreasing. However, the amount of combustible component among a total amount of waste is expected to increase, so it is predicted that the amount of incineration and combustible component will be reasonable except D incineration plant, Therefore, D incinerating plant showed 72.7% of rate of utilization of incineration facility compared to 59.1% of national rate. However, if shortfall of waste in the future can be used wisely in other areas, the use of renewable energy using burner useless heat can be maximized.

• Spatial Information Research
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• v.22 no.6
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• pp.91-103
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• 2014

The high popularity of geo-referenced mash-up improves the quality and availability of geo-referenced contents. Such contents which accurately represent the real world in street level as well as in aerial level have appeared. Despite the advent of geo-referenced contents of street level, it is still hardly used for mash-up. In this study, we thus find out its obstacles to spatial mash-up and solutions to overcome them to activate the mash-up based on street level contents. By analyzing the current geo-referenced content with respect to its spatial scope and the way of representation, we draw the limitations of current street level contents. Furthermore, we propose the 'new media geo-referenced content' as a solution to overcome those limitations. With 'new media geo-referenced content', it is able to determine the 3D coordinates of given object in real world. Using those coordinates, database linkage can be more closer, flexible and organic. Such 'new media geo-referenced content' can contribute to activation of geo-referenced contents in street level and its mash-up.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.8B
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• pp.1105-1114
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• 2010

The Proxy Mobile IPv6 (PMIPv6) has been standardized by the IETF NETLMM WG for network-based mobility management. The PMIPv6 can provide IP mobility for Mobile Nodes (MNs) with low handover latency and less wireless resource usage. But, since the PMIPv6 is basically designed for local mobility management, it cannot support directly global mobility management between different PMIPv6 domains. In the PMIPv6, since all traffic is routed through a Local Mobility Anchor (LMA), it causes a long end-to-end delay and triangular routing problem. Therefore, in this paper, we propose a fast network-based global mobility management scheme and route optimization scheme with a new network entity, called Global Mobility Agent (GMA). Numerical analysis and simulation results show that the proposed scheme is able to support global mobility between different public domains with low handover latency and low end-to-end delay, compared with the PMIPv6.