• International Journal of Advanced Culture Technology
• /
• 제6권4호
• /
• pp.226-232
• /
• 2018

The rapid pace of growth in internet usage and rich mobile applications and with the advantage of incredible usage of internet enabled mobile devices the Green Mobile Crowd Computing will be the suitable area to research combining with cloud services architecture. Our proposed Framework will deploy the eHealth among various health care sectors and pave a way to create a Green Mobile Application to provide a better and secured way to access the Products/ Information/ Knowledge, eHealth services, experts / doctors globally. This green mobile crowd computing and cloud architecture for healthcare information systems are expected to lower costs, improve efficiency and reduce error by also providing better consumer care and service with great transparency to the patient universally in the field of medical health information technology. Here we introduced novel architecture to use of cloud services with crowd sourcing.

• International Journal of Internet, Broadcasting and Communication
• /
• 제10권1호
• /
• pp.71-76
• /
• 2018

The technology convergence of television, communication, and computing devices enables the rich social and entertaining experience through Smart TV in personal living space. The powerful smart TV computing platform allows to provide various user interaction interfaces like IR remote control, web based control, body gesture based control, etc. The presently used smart TV interaction user control methods are not efficient and user-friendly to access different type of media content and services and strongly required advanced way to control and access to the smart TV with easy user interface. This paper propose the optical wireless communication (OWC) based remote controller design for Smart TV using smart device Flashlights. In this approach, the user smart device act as a remote controller with touch based interactive smart device application and transfer the user control interface data to smart TV trough Flashlight using visible light communication method. The smart TV built-in camera follows the optical camera communication (OCC) principle to decode data and control smart TV user access functions according. This proposed method is not harmful as radio frequency (RF) radiation does it on human health and very simple to use as well user does need to any gesture moves to control the smart TV.

• 한국정보통신학회논문지
• /
• 제9권5호
• /
• pp.912-919
• /
• 2005

무선 인터넷(Wireless Internet)의 발달로 인해 언제 어디서나 네트워킹이 가능한 환경이 구축되면서 휴대폰과 PDA 등의 모바일 단말기가 여러 분야에서 활용되고 있다. 특히 원격 제어에 있어서 모바일 단말기의 이동성은 큰 장점을 가진다. 본 논문은 모바일 단말기 중에서 가장 대중적인 휴대폰을 사용하여 원격 컴퓨터의 스크린 이미지를 전송받고, GUI 제어와 모니터링을 수행하는 Mobile VNC(Virtual Network Computing) 시스템을 설계 및 구현하였다. 제안하는 시스템은 휴대폰 상의 Mobile Viewer, 다수의 원격 컴퓨터 상의 VNC Server, VNC Monitor로 구성된다 VNC 서버와 모바일 뷰어 사이의 통신을 위해서 MRFB(Mobile RFB) 프로토콜을 사용하고, 모바일 뷰어로 전송되는 스크린 이미지는 휴대폰의 자바 실행 환경인 SK-VM이 지원하는 PNG 포맷으로 엔코딩한다. 구현 결과, 이미지 용량은 2KB-8KB로 측정되었고, 65회 전송 결과 평균 초당 전송률은 에뮬레이터에서 4.93fps, 실제 휴대폰은 0.8fps로 기존 시스템보다 빠른 성능을 보였다.

• 한국컴퓨터정보학회논문지
• /
• 제13권4호
• /
• pp.115-126
• /
• 2008

VNC(Virtual Network Computing)는 RFB (Remote Framebuffer)프로토콜을 사용하여 데스크탑을 공유하는 소프트웨어로, VNC 서버가 실행되고 있는 원격 컴퓨터를 로컬 컴퓨터에 설치된 VNC 클라이언트(또는 뷰어)를 통해 제어할 수 있다. 원격 컴퓨터와 로컬 컴퓨터의 정보를 서로 교환하기 위하여, VNC는 클립보드 콘텐츠를 공유할 수 있는 기능을 제공한다. 그러나 현재 사용중인 VNC 소프트웨어들은 단지 텍스트 형식의 클립보드 콘텐츠를 공유하는 기능을 제공하며, 이미지와 같은 멀티미디어 클립보드 콘텐츠를 공유하는 방법을 제공하고 있지 않다. 본 논문에서는 텍스트와 이미지로 구성된 클립보드 콘텐츠를 공유할 수 있도록 RFB 프로토콜을 확장한다. 또한 개발된 프로토콜을 지원하기 위하여 무료 오픈소스 소프트웨어인 UltraVNC 서버와 JavaViewer 클라이언트를 확장한다. 개발된 VNC 소프트웨어를 통하여, 사용자는 원격 컴퓨터와 로컬 컴퓨터 사이에서 이미지와 텍스트가 포함된 클립보드 콘텐츠를 공유할 수 있다.

• 대한원격탐사학회지
• /
• 제33권4호
• /
• pp.339-350
• /
• 2017

In recent, cloud computing paradigm and open source as a huge trend in the Information Communication Technology (ICT) are widely applied, being closely interrelated to each other in the various applications. The integrated services by both technologies is generally regarded as one of a prospective web-based business models impacting the concerned industries. In spite of progressing those technologies, there are a few application cases in the geo-based application domains. The purpose of this study is to develop a cloud-based service system for satellite image processing based on the pure and full open source. On the OpenStack, cloud computing open source, virtual servers for system management by open source stack and image processing functionalities provided by OTB have been built or constructed. In this stage, practical image processing functions for KOMPSAT within this service system are thresholding segmentation, pan-sharpening with multi-resolution image sets, change detection with paired image sets. This is the first case in which a government-supporting space science institution provides cloud-based services for satellite image processing functionalities based on pure open source stack. It is expected that this implemented system can expand with further image processing algorithms using public and open data sets.

• Journal of Computing Science and Engineering
• /
• 제5권2호
• /
• pp.141-149
• /
• 2011

Many distributed and heterogeneous services and devices are accessible in ubiquitous computing environment, so interoperating those services and devices is one of the key tasks in implementing ubiquitous applications. We used to use script languages in integrating such interoperating components and services. However currently available most script languages are not suitable for ubiquitous environment because there are so diverse forms of interoperation targets such as service objects, web, legacy objects and programmable devices. So it is worthwhile designing a new script language well-suited to ubiquitous environment. In this paper, we propose a new script language, called Ubiscript, for the ubiquitous environment. We develop and adopt several unique language features such as remote scope, multiple contexts, web and legacy objects, remote exception handling, etc. in Ubiscript to overcome the limitations of conventional script languages. In this paper, we also describe the implementation of Ubiscript and its runtime system. A couple of ubiquitous applications were developed in Ubiscript, and the applications are tested on the runtime system. According to our experiences and evaluation, Ubiscript turned out to have a high potential in its expression power and contribution to improving ubiquitous application developers' productivity.

• Nuclear Engineering and Technology
• /
• 제53권10호
• /
• pp.3449-3459
• /
• 2021

With the increasing availability of high-performance computing (HPC) platforms, uncertainty quantification (UQ) and sensitivity analyses (SA) can be efficiently leveraged to optimize design parameters of complex engineering problems using modeling and simulation tools. The workflow involved in such studies heavily relies on HPC resources and hence requires pre-processing and post-processing capabilities of large amounts of data along with remote submission capabilities. The NEAMS Workbench addresses all aspects of the workflows involved in these studies by relying on a user-friendly graphical user interface and a python application program interface. This paper highlights the NEAMS Workbench capabilities by presenting a semiautomated coupling scheme between Dakota and any given package integrated with the NEAMS Workbench, yielding a simplified workflow for users. This new capability is demonstrated by running a SA of a turbulent flow in a pipe using the open-source Nek5000 CFD code. A total of 54 jobs were run on a HPC platform using the remote capabilities of the NEAMS Workbench. The results demonstrate that the semiautomated coupling scheme involving Dakota can be efficiently used for UQ and SA while keeping scripting tasks to a minimum for users. All input and output files used in this work are available in https://code.ornl.gov/neams-workbench/dakota-nek5000-study.

• 한국화재소방학회:학술대회논문집
• /
• 한국화재소방학회 2005년도 춘계학술논문발표회 논문집
• /
• pp.189-189
• /
• 2005

• 전기의세계
• /
• 제23권2호
• /
• pp.23-27
• /
• 1974

On-line real time system은 보통 중앙장치(computing center), 단말장치(remote terminal) 및 통신회선(communication link)의 세부분시스템(subsystem)으로 구성되어 있는데, 이들 각각에 대한 구성요소와 그 기능에 대하여 약술하려고 한다.

• International Journal of Internet, Broadcasting and Communication
• /
• 제9권4호
• /
• pp.59-66
• /
• 2017

Cloud computing has evolved into a core computing infrastructure for the internet that encompasses content, as well as communications, applications and commerce. By providing powerful computing and communications capabilities in the palm of the hand everywhere with a variety of smart devices, mobile applications such as virtual reality, sensing and navigation have emerged and radically changed the patterns people live. The data that is generated is getting bigger. Cloud computing, on the other hand, has problems with system load and speed due to the collection, processing and control of remote data. To solve this problem, fog computing has been proposed in which data is collected and processed at an edge. In this paper, we propose a system that dynamically selects a fog server that acts as a cloud in the edge. It serves as a mediator in the cloud, and provides information on the services and systems belonging to the cloud to the mobile device so that the mobile device can act as a fog. When the role of the fog system is complete, we provide it to the cloud to virtualize the fog. The heterogeneous problem of data of mobile nodes can be solved by using mDBaaS (Mobile DataBase as a Service) and we propose a system design method for this.