• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.31-33
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• 2001

최근 web기반에서 언제 어디서나 사용자만의 컴퓨터환경을 제공하는 Virtual OS를 구현한 사례가 많이 발표되고 있다. [1, 2, 3]. Virtual OS는 Unix나 Windows같은 Real OS를 기반으로 하여 web에서 OS의 기능을 구현한 것으로 Real OS에 있는 프로그램을 실행하고 파일을 관리한다. 본 논문에서는 Web기반 Virtual OS에서 동작하는 C 언어 Preprocessor를 설계한다. Web기반으로 preprocessor를 설계하면 어디서나 사용자가 프로그래밍을 할 수 있는 환경을 구축할 수 있다. 본 논문에서는 Linux를 기반으로 preprocessor를 구현하였으며, 분석 결과를 시뮬레이션을 통해 알아보았다.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.121-123
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• 2001

최근 인터넷관련 기술은 사용의 편의성이 강조되고 있다. 이에 많은 연구자들은 언제 어디서나 사용자만의 컴퓨터환경을 제공하는 가상 OS(WebOS: Web Operating System)를 개발하였다[1,2,3]. 그러나 가상 OS를 구현할 때 기존 시스템(Unix, Linux, Windows등)의 File System을 사용하면 시스템의 정보를 사용자가 예측할 수 있기 때문에 시스템 안전성 문제가 발생할 수 있다. 본 논문에서는 기존 시스템의 File System을 이용하지 않고 가상의 File System을 사용함으로써 기존 시스템보다 안전하며 향후 가상 OS에서 개발되어질 프로그램들에 사용할 수 있는 DB구조의 File System을 설계 및 구현한다.

• Journal of Digital Forensics
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• v.12 no.3
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• pp.55-70
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• 2018

With the diversification of mobile devices, the development of web technologies, and the popularization of the cloud, an internet-centric web OS that is not dependent on devices has become necessary. Chromebooks are mobile devices in the form of convertible laptops featuring a web OS developed by Google. These Web OS mobile devices have advantages of multi-user characteristics of the same device and storage and sharing of data through internet and cloud, but it is easy to collect and analyze evidence from the forensic point of view because of excellent security and easy destruction of evidence not. In this paper, we propose an evidence collection procedure and an analysis method considering the cloud environment by dividing the Chromebook, which is a web OS mobile device popularized in the future, into user and administrator modes.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.223-223
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• 2000

Embedded system area has brought an innovation and has been spread rapidly by the growth of the Internet, wireless telephony and multimedia recently. Many embedded systems are required to be real-time systems in that it needs multi-tasking and priority based scheduling. This paper introduces a real-time system that was developed with web server ability for control and monitoring system employing a real-time operating system. It discusses the design model, structure, and applications of web server system. We used SNDS100 board which has a 32-bit RISC microcontroller of ARM7TDMI core as a hardware platform. MicroC/OS kernel was used as Real-time operating system that supports a preemptive and multitasking functions. We developed a hierarhchical control and monitoring system that not only reduced system and management costs, but also enhanced reusability and portability.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.336-339
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• 2014

전자제품의 스마트화 열풍으로 임베디드 시스템의 하드웨어 및 소프트웨어의 발전이 경쟁적으로 이루어지고 있지만, 하드웨어 발전 속도에 비해 그 활용도는 미진한 편이다. 특히, 스마트 TV 는 대형 스크린을 갖고 있다는 장점이 있고, 사물인터넷 시대의 중추 역할을 할 것으로 기대되기 때문에 많은 계산의 신속한 처리를 요구 받을 가능성이 크다. 따라서 본 논문에서는 webOS 기반 스마트 TV 에서, 계산자원을 충분한 활용하기 위한 병렬처리 가능성을 확인하고자 webOS 시스템을 프로파일링하고 그 결과를 분석하였다.

• The Journal of the Korea Contents Association
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• v.11 no.11
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• pp.28-33
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• 2011

Recently the market of smart phone applications grows very fast. And users want more various and rich experiments using enhanced smart phone functions. But the development of smart phone applications is not an easy job. Specially to control smart phone sensors can be realized by using each native programming languages in experts level. Moreover the process needs separate development based on each smart phone OS. Development of the Web-based smart phone application using Web Common APIs, known as 'WebApp', is one of solutions to overcome these problems. The method includes interface constructions with HTML, and Web Common API calls and accesses to smart phone device APIs with Java scripts. In this paper, the experience in development of the smart phone e-book application is introduced, which is implemented with comport and OS independent WebApp development method.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.30 no.11
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• pp.16-22
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• 2012

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.460-462
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• 2005

센서 네트워크 노드는 각각 초저전력, 초소형, 저비용을 지향하는데 이러한 하드웨어 리소스를 사용하는 임베디드 OS가 TinyOS이다. TinyDB는 이러한 TinyOS 센서 네트워크로부터 정보를 추출하기 위한 쿼리프로세싱 시스템이다. 이러한 TinyDB를 활용해서 X-Scale 기반의 임베디드 리눅스 환경에서 네트워크를 통한 Host서버와의 연계 및 센서 네트워크 응용에 관한 연구를 하였다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.5
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• pp.731-742
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• 2022

PIPO is the latest domestic lightweight block cipher announced in ICISC'20, which is characterized by being lightweight to facilitate implementation on IoT with limited resources. In this paper, PIPO 64/128-bit and 64/256-bit were implemented using web-based languages such as Javascript and WebAsembly. Two methods of performance evaluation were conducted by implementing bitsice and TLU, and the performance was compared by implementing Looped written using for statements and Unrolled written for statements. It performs performance evaluations in various web browsers such as Google Chrome, Mozilla Firefox, Opera, and Microsoft Edge, as well as OS-specific environments such as Windows, Linux, Mac, iOS, and Android. In addition, a performance comparison was performed with PIPO implemented in C language. This can be used as an indicator for applying PIPO block cipher on the web.

• Journal of Satellite, Information and Communications
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• v.10 no.4
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• pp.23-27
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• 2015

This paper, discusses about the implementation of the remote control LED Lights in elevator facility Since 1990, the elevator dissemination has greatly increasing. Currently in the elevator most of people they can use smart devices anytime or anywhere to view and retrieve the information by using internet. Therefore, in this paper, efficient management of power LED and LED remote control LED lighting fluid, in order to control features and smart devices can be applied to Web services platform and OS-specific proposals. Additionally based on the configured UI technology and programs offered by the present, and the LED lights are offered through the simulation to efficiently manage technology to demonstrate the usefulness.