• Journal of KIISE:Software and Applications
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• v.31 no.9
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• pp.1226-1232
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• 2004

Biometric authentication is rising technology for the security market of the next generation. But most of biometric systems are developed using only one of various biological features. Recently, there is a vigorous research for the standardization of various biometric systems. In this paper, we propose a web-based authentication system using three other verifiers based on functional, parametric, and structural approaches for one biometrics of handwritten signature, which is conformable to a specification of BioAPI introduced by BioAPI Consortium for a standardization of biometric technology. This system is developed with a client-server structure, and clients and servers consist of three layers according to the BioAPI structure. The proposed neb-based multiple authentication system of one biometrics can be used to highly increase confidence degree of authentication without additional several biological measurements, although rejection rate is a little increased. That is, the false accept rate(FAR) decreases on the scale of about 1:40,000, although false reject rate(FRR) increases about 2.7 times in the case of combining above three signature verifiers. So the proposed approach can be used as an effective identification method on the internet of an open network. Also, it can be easily extended to a security system using multimodal biometrics.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2014.06a
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• pp.118-121
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• 2014

본 논문은 TTA 에서 제정된 "HTML5 기반 스마트 TV 플랫폼" 표준(TTAK.KO-07.0111/R1)에 따라 개발되는 스마트 TV 수신기 앱이 표준의 기술 요구사항을 준수하여 적합하게 구현되고 있는지 검증할 수 있는 앱 검증 도구를 소개한다. 이 도구는 개발자에게 제공되는 통합개발환경에 포함되는 개발 툴의 하나로, 표준기반 스마트 TV 앱의 소스코드를 해석하고 의미를 분석하여, 표준의 기술 요구사항에 따라 정의된 검증 규격(Rule)을 준수하는지 검증해주는 역할을 한다. 도구의 기능범위는 JSLint, JSHint, ESLint 와 같은 기존 Open Source 기반 툴의 문법 검사 기능을 수용하고, 스마트 TV 플랫폼 특성에 따른 미지원 API, 확장 API 사용 및 웹 브라우저에서 지원되지 않는 기능에 대한 검증을 추가하였다. 스마트 TV 앱 개발자들은 이 도구를 사용하여 개발 비용이 적게 드는 초기 단계에 표준을 준수하는 앱을 구현 함으로서 TV 정합 시간을 줄일 수 있으며, 다른 디바이스나 플랫폼으로 앱을 이식하는 작업을 효율적, 경제적으로 할 수 있다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.6
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• pp.1455-1461
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• 2015

Micro Grid is a new concept of electrical grid to solve several problems of Mega-Grid and it is under research and development at the national level around the world. With this background, Micro Grid Common Platform has been developed for interoperability technology of devices-systems in Micro Grid and securing enabler for new market. For supporting business models, Micro Grid Common Platform provides electric power information to Third-Party licensee via Open API function. Licensee, who want to develop electric power application by connecting to Micro Grid Common Platform, needs IDE(Integrated Development Environment) for service development and distribution. The paper proposes a service development tool for developing applications of Micro Grid Common Platform as a PaaS (Platform as a Service).

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.659-662
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• 2008

최근 모바일 단말의 종류가 크게 증가하고 있으며, 그 기능과 성능이 크게 향상되고 있다. 또한 이동통신 기술의 발전으로 통신 방식이 다양해지고 있으며 속도도 크게 개선되고 있어 모바일 단말을 통한 인터넷 서비스의 활용에 대한 요구가 크게 증가하고 있다. 이러한 상황의 변화는 모바일 단말의 기능이 통신 기능보다는 서비스 기능을 강화하는 방향으로 진화하게 만들었으며, 이는 실제로 모바일 단말 제조사들이 구글 폰, 야후 폰 등 기존의 인터넷 서비스와 긴밀하게 통합된 기능을 제공하는 제품을 제품화하고 있다. 최근 국내 및 국외의 주요 인터넷 서비스 업체들은 자신들의 서비스를 플랫폼화하여 서비스를 제공하고 있다. 특히 구글, 야후, 아마존, 이베이 등 국외의 주요 업체들은 자신들의 서비스 플랫폼에 대한 개방형 API(Open API)를 공개하여 다양한 클라이언트 응용들이 자신의 서비스를 쉽게 활용할 수 있도록 환경을 구축하고 있으며 이를 기반으로 응용 개발자들을 전폭적으로 지원하고 있다. 이러한 상황에서 모바일 서비스 환경도 사용자들이 유선상에서 사용하던 다양한 인터넷 서비스를 모바일 환경에서 사용하고자 하는 요구가 크게 증가하고 있다. 이는 모바일 단말 시장에서 중요한 요구사항으로 인식되어 향후 모바일 플랫폼들은 편리한 인터넷 서비스와의 연동 기능을 지원할 것으로 예상된다. 본 논문에서는 모바일 단말을 위한 차세대 모바일 웹 플랫폼에 대한 요구사항을 정리해보고, 이를 위한 플랫폼을 설계하여 제안한다.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.27 no.11
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• pp.949-958
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• 2016

This paper presents the new development result of the multi-band, the multi-mode SDR(Software Defined Radar) platform. The SDR hardware platform is implemented by using the reconfigurable multi-band RF transceiver and antenna modules of S, X, and K-bands, and a programmable signal processing module. The SDR software platform is implemented by using the multi-mode waveform generation of CW, Pulse, FMCW, and LFM Chirp as well as the adaptable algorithm library of signal processing and open API software modules. Through the integrated test of the SDR platform, the operational performance was verified in real-time. Also, through the field-application test, the ground target and air-vehicle drone target were successfully detected and their test results were presented.

• Journal of Advanced Marine Engineering and Technology
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• v.34 no.8
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• pp.1135-1144
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• 2010

The high tech marine transportation infrastructure is an innovative transportation infrastructure that may be able to secure a safe transportation environment as well as efficient operation by connecting up-to-date skills including a broad range of wire and wireless communication-based information, control and electronics technologies. When integrated into the marine transportation infrastructure by the standard requirements, these standard technologies help monitoring and managing navigational aids. This paper defined a concept of middleware in the marine traffic management systems which gives characteristics of system independency, scalability, extensibility, and researches a functionality of the middleware and a software block of the middleware.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.01a
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• pp.281-282
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• 2021

본 논문에서는 항공 수요예측을 위한 빅데이터 기반 플랫폼의 설계 및 실증 결과를 제시한다. 항공 수요예측 통합 플랫폼은 항공산업 관련 데이터를 Open API, RSS Feed, 웹크롤러(Web Crawler) 등을 이용하여 수집 및 분석하여 자체 개발한 항공 수요예측 알고리즘을 기반으로 결과를 시각화하여 보여주도록 구현되어 있다. 또한, 제안하는 플랫폼의 사용자 인터페이스를 통해 변수 설정을 하여 단위별(Global, National 등), 기간별(단기, 중장기 등), 유형별(여객, 화물 등) 예측 통계 자료를 도출할 수 있다. 플랫폼의 성능 검증을 위해 정형화된 데이터를 비롯하여 소셜네트워크서비스(SNS), 검색엔진 등에서 수집한 비정형 데이터까지 활용하여 특정 키워드의 빈도와 특정 노선에 대한 항공 수요간 상관관계를 분석하였다. 개발한 통합 플랫폼의 지능형 항공 수요예측 알고리즘을 통해 전반적인 공항 운영 및 공항 운영 정책 수립에 기여할 것으로 예상한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.11
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• pp.6830-6837
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• 2014

Since the advent of global warming and energy depletion, there has been great interest in eco-driving (energy-efficient driving). In this paper, a system is proposed to monitor the idle running of an engine and steady driving for a vehicle equipped with an ISG (Idling Stop & Go system). The system consists of a G/W device to acquire the vehicle operation data, a smartphone app for monitoring eco-driving and a server system. The main contribution of this paper is that it defines the integrated functions, the architecture and operation mechanisms of a system for monitoring eco-driving including the prohibition of running idle. The system enables the users to check the idling stop times, driving speeds, fuel savings, and $CO_2$ emissions, resulting in the driving style for eco-driving. The server system, which is a part of this system, provides OpenAPI-style web services for the storage and retrieval of car operation data, which facilitates the development of applications.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.7
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• pp.277-282
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• 2015

HL7 released V3 CDA(Clinical Document Architecture) and V2.x message standards for medical information exchange. Currently, these standards are successfully adopted by a number of nations across the globe. However, substantial amount of time is required to develop and implement these standards. Moreover, developers need a lot of time to understand these standards. To solve these issues from 2011, the HL7 standard framework started to discuss Fast Healthcare Interoperability Resources(FHIR) as next generation standard of healthcare information exchange. People's interests toward personal health record and smartphone penetration rate are growing and increasing rapidly. Therefore, our research team believes it is necessary to develop a PHR profiling system which could be accessed by using a smartphone and we developed the system. Through a FHIR Profile editor tool developed in Furore, we found that improvements could be made in generating and changing the profile. In order to build the PHR Profiling system, an Open-API on FHIR is used for exchanging information between electronic medical record system and PHR Profiling system. In the PHR Profiling system, the transactions of information between two systems are provided by RESTful service. In this study, we verify the efficiency of development of the PHR Profiling system through FHIR.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.232-237
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• 2008

Korea is one of the most advanced countries in terms of nation-wide readiness for conducting complex trade processes in an electronic way. Since various trade processes are well-known for their complexity and cost as well as time consuming characteristics due to required collaborations with involving parties, automation and efficiency are always the main concern of trade-related practitioners. Using information technology can be a possible solution to this problem and Korea has developed the national e-trade infrastructure called "u-Trade Hub." In this paper, we propose the framework to enhance the national integrated e-trade system called "u-Trade Hub," which is ready to be released for commercial use in near future. We propose the framework to upgrade u-Trade Hub in four directions: (1) opening, (2) strengthening community feature, (3) modularization, (4) seeking profitability. In this paper, we study and compare national e-trade environment of other countries such as Singapore and Japan. Then, we analyze and design the enhanced e-trade infrastructure based on Web 2.0.