• 디지털융복합연구
• /
• 제12권4호
• /
• pp.85-92
• /
• 2014

최근 정부에서는 창조경제 실현을 위해 IT, 과학기술의 융합과 혁신을 지속적으로 추진하고 있으며, 이에 중소기업이 성장하고 소상공인이 행복한 창조경제를 구현하기 위한 창조경제 생태계를 조성하고 있다. 최근 IT 변화를 주도하는 모바일의 확산에 따라 모바일 앱, SNS, 빅데이터 등 모바일 관련 다양한 융합기술 개발이 추진되고 있다. 본 논문에서는 정부의 창조경제 실현을 위해 중소기업이 상상력과 창의성을 기반으로 모바일 융합 기술개발을 통해 새로운 부가가치 시장과 일자리를 창출할 수 있는 체계적인 육성방안을 제안하였다.

• 한국정보통신설비학회:학술대회논문집
• /
• 한국정보통신설비학회 2005년도 하계학술대회
• /
• pp.318-322
• /
• 2005

An IP address plays both endpoint identifier and location identifier in wire based network. However, one IP address can not provide both endpoint identifier and location identifier for mobile Internet environment such as cellular network and portable Internet. To resolve this problem, mobile IPv4 and mobile IPv6 technologies are developed. These technologies are based on the concept of separation the endpoint identifier from location identifier. This paper describes some results of the recent studies such as mobile IPv4, mobile IPv6, host identify protocol and so on. Also, we propose the criteria to decide which technologies are suitable for deployment in the practical network environment.

• 한국컴퓨터정보학회논문지
• /
• 제22권10호
• /
• pp.47-54
• /
• 2017

In this paper, we propose a connected car platform architecture called Mobile Second for developing of verity convergence services. A Mobile Second platform architecture is designed to provide more powerful and diverse convergence services for vehicles and drivers by applying technologies of Connected Car and ICT Convergence in various ways. The Mobile Second platform is implemented by applying Tizen IVI and Android to hardware platforms for IVI, Nexcom's VTC1010 and Freescale's i.MX6q/dl respectively. The Mobile Second platform provides the driver with the vehicle's information via IVI devices, mobile devices and PCs, etc., and provides Vehicle Selective Gateway(VSG) and Vehicle Control Framework for the driver to control his/her vehicle, and also provides a web framework to enable the use of VSG's APIs for the monitoring and controlling the vehicle information in various mobile environments as well as IVI devices. Since the Mobile Second platform aims to create new variety of services for Connected Car, it includes service frameworks for Smart Care / Self diagonostics, Mood & Entertainment services, and Runtime, libraries and APIs needed for the development of related applications. The libraries given by the Mobile Second Platform provides both a native library for native application support and a Java Script-based library for web application support, minimizing the dependency on the platform and contributing the convenience of developers at the same time.

• 정보통신설비학회논문지
• /
• 제9권4호
• /
• pp.131-140
• /
• 2010

Recently, mobile wireless data traffic has been dramatically increased due to not only the popularization of digital convergence devices including smart phone, Net-book, and Tablet PC, but also the vitalization of wireless Internet related eco-systems such as AppStore. In addition, it is expected that a tremendous increase in mobile data is caused by the release of unlimited mobile data plans (flat-fee). In order to deal with such mobile data traffic explosion, it is necessary that network operators should make efforts to offload wireless data traffic. This paper reviews the condition of mobile wireless data traffic in domestic and international telecommunication industry and looks for various action plans to overcome the difficulty of network operators.

• 로봇학회논문지
• /
• 제17권2호
• /
• pp.183-190
• /
• 2022

Accurate kinematic parameters of mobile robots are essential because inaccurate kinematic model produces considerable uncertainties on its odometry and control. Especially, kinematic parameters of caster type mobile robots are important due to their complex kinematic model. Despite the importance of accurate kinematic parameters for caster type mobile robots, few research dealt with the calibration of the kinematic model. Previous study proposed a calibration method that can only calibrate double-wheeled caster type mobile robot and requires direct-measuring of robot center point and distance between casters. This paper proposes a calibration method based on geometric approach that can calibrate single-wheeled caster type mobile robot with two or more casters, does not require direct-measuring, and can successfully acquire all kinematic parameters required for control and odometry. Simulation and hardware experiments conducted in this paper validates the proposed calibration method and shows its performance.

• 한국IT서비스학회지
• /
• 제9권4호
• /
• pp.243-259
• /
• 2010

It is expected that the next generation mobile communication system will be a service-driven developed system capable to realize the human-centric mobile convergence services. and it is different from the technology-driven development approach of the second and the third generation mobile communication systems. As a preliminary research work on such service-driven system development approach for the next generation mobile communication system. we developed the scenario based service analysis process (2SAP) framework to derive core service technologies and functionalities. In this paper. we propose the next generation mobile convergence service business model creation methodology based on research results of the 2SAP framework. To achieve this goal, we first establish a service model contains several components such as infrastructures. operations. and provision of services that are indispensible for providing next generation mobile services. Then, the next generation mobile services and its corresponding business models can be created by adding service and value flows to the developed service model after defining necessary components of business model including actors, their relationships, and roles.

• ETRI Journal
• /
• 제28권4호
• /
• pp.525-528
• /
• 2006

In this letter, we present a design of a single chip video decoder called advanced mobile video ASIC (A-MoVa) for mobile multimedia applications. This chip uses a mixed hardware/software architecture to improve both its performance and its flexibility. We designed the chip using a partition between the hardware and software blocks, and developed the architecture of an H.264 decoder based on the system-on-a-chip (SoC) platform. This chip contains 290,000 logic gates, 670,000 memory gates, and its size is $7.5\;mm{\times}7.5\;mm$ (using 0.25 micron 4-layers metal CMOS technology).

• ETRI Journal
• /
• 제32권2호
• /
• pp.255-264
• /
• 2010

Interference scenarios and methodologies between a terrestrial mobile service (MS) system and mobile-satellite service (MSS) system in a co-channel environment are established. Taking into account a practical deployment situation for both systems, we perform computational simulation of interference in terms of carrier-to-interference ratio (C/I) and interference-to-noise ratio (I/N) to evaluate the cofrequency interference from an MS system into an MSS system, and from an MSS system into an MS system, respectively. The methodology and results can be used as a guide when planning the deployment of MSS and MS systems with no unacceptable interference impact between them.

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회 2007년도 추계학술대회 및 정기총회
• /
• pp.358-373
• /
• 2007

In this paper, we proposed the next generation mobile convergence service business model creation methodology. In order to establish such a business model creation methodology framework, we first introduce the service model based on our previous research results on next generation mobile convergence services. The service model contains several components such as infrastructures, operations, and provision of services that are indispensible for providing the next generation mobile services. Finally, by adding service and value flows to the developed service model, we propose the next generation mobile services business model creation methodology. To achieve this objective, we first derive necessary components of business model including actors, their relationships, and roles. In addition, we propose service composition methodology for creating new mobile services and its corresponding business models.

• 디지털융복합연구
• /
• 제13권9호
• /
• pp.243-250
• /
• 2015

모바일 학습 콘텐츠 구현은 IT와 관광을 융합하는 IT관광 융합 학문이다. 학습의 효과를 증대하기 위해서 모바일 학습 콘텐츠를 학습 모듈별로 분류한다. 본 논문은 u-스마트 관광정보2.0 시스템을 제안한다. 모바일 학습 콘텐츠 구현은 IT 관광 융합인 u-스마트 관광정보2.0 시스템을 이용한다. 이것은 디자인 패턴과 XML를 융합하여 학습자에게 재미와 흥미를 준다. 이것은 국가 직무 능력 표준구조로 학습자들의 디자인 패턴으로 나뉘어 학습 모듈별로 수업진행이 최대 장점이다. 그 결과 학습자 출석률이 향상되며 더욱 좋은 학습효과가 나왔다. 다른 장점은 관광정보 콘텐츠 정보품질에 맞는 모바일 학습 콘텐츠를 생성하고 관광정보콘텐츠를 실시간으로 학습 할 수 있다. 또한 모바일 학습 콘텐츠 구현은 향후 국가 직무 능력 표준 학습에 많은 도움을 줄 것으로 기대된다.