• Journal of the Korea Society for Simulation
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• v.29 no.2
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• pp.1-10
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• 2020

Companies that use open source SW must comply with the "Open Source SW License" in order to use it freely. However, despite the potential legal responsibilities and risks associated with compliance, they do not know or neglect the risks. For this reason, cases of disputes, including license violations, are soaring. Recently, Open source SW license compliance platform services have been developed and actively utilized to address these issues. This study designed a business model for open source SW license compliance platform and conducted an economic feasibility analysis. The focus of the study is the establishment of a business model and the estimation of potential customers and actual purchase rates. For this purpose, we designed seven business model scenarios for promotion and sales period, and performed an economic evaluation using an expanded model of the Bass model, the Kalish model and the customer's maximum willingness to pay.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.1163-1165
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• 2017

헬스케어와 IT가 결합한 융합산업이 발전하면서 웨어러블 디바이스와 스마트폰을 연계하여 운동정보를 제공하는 제품이 증가하고 있다. 특히 손목에 착용하는 스마트밴드를 통해 생체신호 및 움직임을 감지하고 신체상태 및 활동량을 제공하고 있다. 그러나 단순한 운동 동작의 횟수나 시간만을 알려주는 서비스를 제공하고 있어 정확한 운동 및 건강의 관리가 힘들다. 이에 본 논문에서는 사용자에게 운동의 정확성 여부를 알려주고 건강 및 운동에 대한 통계 정보를 제공하는 클라우드 서비스 기반의 운동 정보 제공 시스템을 제안한다. 제안 시스템은 스마트밴드와 모션 디바이스를 통해 모션 및 심박데이터를 취득하여 스마트폰을 통해 실시간으로 운동의 정확도 여부 및 활동 정보를 제공한다. 또한 클라우드 플랫폼의 서비스 가상 머신을 통해 세밀한 운동 자세 및 운동량, 신체 상태 통계 등의 피드백 서비스를 제공한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.934-936
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• 2022

현재 사회적인(COVID-19) 영향으로 메타버스에 대한 수요가 급증하였지만, 메타버스 플랫폼 진입을 지원하는 XR(AR/VR) 장비의 높은 가격대와 전문성 요구로 폭넓은 수요층을 포괄하기 어려운 상황이다. 본 논문에서는 이러한 수요층의 어려움을 개선하고자 웹 캠이나 스마트폰 카메라로 생성된 개인의 사진 이미지를 StyleGAN 딥러닝 기술과 접목시켜 캐릭터를 생성해 Mediapipe를 활용하여 모션 측정 및 제어를 처리하는 서비스를 제안하여 메타버스 시장의 대중화에 기여하고자 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.9
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• pp.2006-2013
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• 2015

Deaf are it is difficult to communicate to represent the voice heard, so theay use mostly using the speech, sign language, writing, etc. to communicate. It is the best way to use sign language, in order to communicate deaf and normal people each other. But they must understand to use sign language. In this paper, we designed and implementated finger language translation system to support communicate between deaf and normal people. We used leap motion as input device that can track finger and hand gesture. We used raspberry pi that is low power sing board computer to process input data and translate finger language. We implemented application used Node.js and MongoDB. The client application complied with HTML5 so that can be support any smart device with web browser.

• Journal of the Institute of Convergence Signal Processing
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• v.18 no.1
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• pp.6-12
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• 2017

In this paper, we proposed IoT based Smart Health Service using Motion Recognition for Human UX/UI. Until now, sensor networks using M2M-based u-healthcare are using non-IP protocol instead of TCP / IP protocol. However, in order to increase the service utilization and facilitate the management of the IoT-based sensor network, many sensors are required to be connected to the Internet. Therefore, IoT-based smart health service is designed considering network mobility because it is necessary to communicate not only the data measured by sensors but also the Internet. In addition, IoT-based smart health service developed smart health service for motion detection as well as bio information unlike existing healthcare platform. WBAN communications used in u-healthcare typically consist of many networked devices and gateways. The method proposed in this paper can easily cope with dynamic changes even in a wireless environment by using a technology supporting mobility between WBAN sensor nodes, and systematic management is performed through detection of a user's motion.

• The Journal of the Korea Contents Association
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• v.21 no.6
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• pp.561-571
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• 2021

As the game industry grows, the companies are promoting price discounts to increase game sales and profits. Consumers generally feel guilt when they are purchasing games. Previous studies argue that consumers feel less guilty and justify their consumption more easily when they are purchasing hedonic products at discounted price. In this study, we argue that there are different types of games; multi-game where consumers socialize each other and single games not supporting socializing. In the multi-game, consumers make social relationship which can provide substantial benefits. Since multi-games are promoting consumers' socializing expected to have those benefits. Although most of game consumptions bring a sense of guilty feeling, purchasing multi-game may not cause guilt much because the benefits of socializing justify the consumption. To support my hypothesis, we collect the data from global game platform Steam to analyze the relationship between price promotion and number of consumers. As a result, price promotion has significantly different relationship between multi-and single game. The results of this study suggest several managerial implications.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.6
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• pp.91-101
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• 2019

Tourism or travel business consists of a set of services for people who visit exotic places. Payment is usually marking the end of the series of activities relating to tourism, and it becomes the linkage for the next activity. With the recent advancement of mobile Fintech technologies, we have learned that more convenient and more secure financial transactions are improving the quality of tourism. It should be noted that tourism counts on information technology heavily in terms of mobile Internet and smart devices use, which yields to a wide business opportunities for Fintech startups. However, payment information has not been highlighted for additional marketing promotion activities. The lack of research into information technology-based business models that extend Fintech services related to payment in venture start-up studies hinders the understanding of the possibility of creating new business through the value creation process after payment. This study attempts to investigate this issue based on the theory of smart tourism and service-dominant logic with developing a new information system. More specifically, marketing promotion activities after payment for Chinese tourists visiting Korea are examined. Specifically, WeChat Pay and instant tax refund service were considered while the system was developed by following desing science research methodology. This study is meaningful in that it finds a new possibility of Fintech business model by applying scientific and academic methods, and it reminds the necessity of service automation system centered on instant tax refund.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.40 no.1
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• pp.1-8
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• 2016

In this study, we propose a control algorithm for Inertially Stabilized Platforms (ISP), which combines Disturbance Observer (DOB) with conventional proportional integral derivative (PID) control algorithm. A single axis ISP system was constructed using a direct drive motor. The joint friction was modeled as a nonlinear function of joint speed while the accuracy of the model was verified through experiments and simulation. In addition, various Q-filters, which have different orders and relative degrees of freedom (DOF), were implemented. The stability and performance of the ISP were compared through experimental study. The performance of the proposed PID-plus-DOB algorithm was compared with the experimental results of the conventional double loop PID control under artificial vehicle motion provided motion simulator with six DOF.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.154-157
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• 2016

최근 스마트폰의 보급과 더불어 근거리 무선 통신의 발달로 인해 다양한 서비스들이 연구 개발되고 있다. 한국에 방문하는 외래 관광객 수는 꾸준히 증가하고 있는 추세이며, 이 중 중국인 관광객은 2013년 기준 전체 방한 외국인 관광객 중 약 35.5%를 차지하였다. 중국인 관광객의 82.8%가 쇼핑을 목적에 두고 있으며, 그 중 향수, 화장품, 의류 항목에 가장 많은 여행시간을 투자하고 있다. 또한 방한 중국인 관광객 중 대다수가 인터넷을 사용하여 관광 정보를 입수 하고 있지만, 이러한 정보를 편리하게 제공할 서비스는 부족한 상황이다. 본 논문에서는 현재 발달되고 있는 근거리 무선 통신 중 NFC와 Beacon을 활용하여 안드로이드 기반의 관광 큐레이션 플랫폼을 구현 하였다. NFC 태그를 활용하여 쇼핑, 관광 관련 정보 및 정확한 제품 및 서비스 정보를 제공하고, Beacon을 이용하여 매장정보 및 각종 마케팅 프로모션과 이벤트 정보를 수신하도록 하였다. 추가적으로 현재 많이 사용되고 있는 Zxing 라이브러리를 활용한 QRCode 및 Barcode 리더기를 활용하여 스캔을 통한 제품 정보를 확인 가능하도록 구현하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.71-73
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• 2014

본 논문에서는 지하철 내의 인구밀집도 파악을 통한 승객의 이용 편의성을 극대화하고, 군중밀도가 높은 지하철 구간의 경우 고른 인구분포 측정을 통한 승객의 편의성을 극대화하는 플랫폼 및 모바일 앱을 제안한다. 제안하는 시스템으로 기존의 지하철 역내에 설치된 CCTV에 모션벡터 영상처리와 RFID 기술을 결합한 Hybrid CDE로 구성되며, Size-Filtering을 통해서 재검출 과정을 거친다. 이러한 결과 값은 전동차 각 구간의 인구밀집도 정보를 정확히 측정 할 수 있다. 또한 결과 값을 바탕으로 효율적인 인구 유동을 유도할 수 있으며 정보 소외 계층 및 사회적 약자 등, 승객을 안전하게 보호할 수 있는 환경을 조성한다. 시스템 관리자는 학습기능 알고리즘을 통해서 오차 범위를 최소화한 플랫폼 설계를 통해 실시간 모니터링 함으로써 정보 습득 및 제공면에서도 새로운 시스템 설계 제안이 될 것이다.