• 한국컴퓨터정보학회:학술대회논문집
• /
• 한국컴퓨터정보학회 2017년도 제56차 하계학술대회논문집 25권2호
• /
• pp.330-333
• /
• 2017

본 논문에서는 기존 인터넷 체계의 문제점을 보완하고 근본적인 대안을 제시하기 위해 CCN개념을 이용한 보안 강화 기법을 제안하고 이를 통해 네트워크의 안전한 전송 시스템을 제안한다. 또한 기존의 복잡한 구조와 사이버 공격 및 해킹에 쉽게 노출되는 TCP/IP 체계의 현재 인터넷 구조에서 네트워크 시스템구조를 단순화하고 획기적 성능 향상과 더불어 사이버 공격에 대응할 수 있는 기술을 제안하고 이를 프로토타입으로 설계하여 증명하고자 한다. 본 논문에서는 파일롯 시스템의 실험을 통하여 제안하는 CCN개념을 이용한 네트워크 보안 변환 시스템 기법의 우수함을 보인다.

• 로봇학회논문지
• /
• 제2권1호
• /
• pp.48-54
• /
• 2007

A network-based robot [1] is a robot that explores service servers in the network environment for analyzing sensor data and making decision. Since network-based robot architecture was proposed, it's possible to reduce costs of robots. We hope robots would be all around at home environment. Therefore, normal users who are not experts need to be able to control those robots by using easy commands. We developed a scripting language, named CCSLR, to help users and developers who control various robots in ubiquitous environment. We focused on how to design the common language for various robots and how to translate a CCSLR script into a sequence of low-level commands of the target robot. In this paper, we propose scripting methods, with three layers. The CCSLR system reads the profile information from the knowledge representation database. Users don't have to know all about kinematical and mechanical details of a robot. Then again, the CCSLR system will use the profile information to translate the script into separated executable library commands. The CCSLR system manages robot's changing state every time a robot executes a command.

• 한국멀티미디어학회논문지
• /
• 제6권1호
• /
• pp.15-27
• /
• 2003

Recently, the volume of data is increasing rapidly in server for multimedia service, according to development of multimedia application environment. In recent research for storage technology the technology like of the SAN(Storage Area Network) advantages in scalibility of storage devices, and can read data from multiple disk arrays through RAID 0, 5. The RAID 0 and 5 translate to logical address to physical address using equation, but in case of adding disks at the system with equation -based mapping, the problem that we must rearrange the whole data in the previous disks happens. We use the mapping table to solve this problem in recent, but we can not load the whole mapping table in main memory because it occupies too large space. Therefore the extra I/Os are demanded to evaluate real physical address of data, so total performance of the system is degraded. In this paper, we propose the mapping method that supports the scalibility in RAID 0 or 5 system. The proposing method applies small metadata, so- called SZIT and simple equation, so it is possible that we make translate logical address to physical address rapidly and it is scalable in disk extending simultaneously Our suggesting method, if we add disks to the striping system for expanding of storage capacity, has an advantage of never stop service. So, SZlT-based mapping method can do online-disk-expanding in real-time service.

• 전기전자학회논문지
• /
• 제22권3호
• /
• pp.570-577
• /
• 2018

With the increasing number of network nodes, traditional client/server node selection mechanisms are under tremendous pressure. In order to select efficient cooperative nodes in a highly dynamic P2P network topology, this article uses greedy algorithm to translate the overall optimization into multiple local optimal problems, and to quickly select service nodes. Therefore, the service node with the largest comprehensive capacity is selected to reduce the transmission delay and improve the throughput of the service node. The final simulation results show that the node selection strategy based on greedy algorithm can effectively improve the overall performance of P2P streaming media system.

• 대한전자공학회논문지
• /
• 제24권2호
• /
• pp.190-195
• /
• 1987

This approach to the transmultiplexer is for the 12-channel TDM/FDM translation system with the polyphase network and the FDCT. For the reduction of the conversion time the 14-point FDCT algorithm is used and the polyphase network which translate the protorype filter into the channel filtrs required in each channel is designed. The prototype filters is designed by the IIR/FIR hybrid filter. The number of numerator terms of the hybrid filter is very large compaired to the denomiator terms. Because of symmetrical properties for numerator terms, required multiplication rate is 0.11396x10**6M/sec.ch. and reduced to 25%-45% of the rate required in the other papers. The proposed system is simulated with the computer and by the results it is proved that the proposed conversion method is valid.

• 한국항만학회지
• /
• 제6권2호
• /
• pp.3-24
• /
• 1992

In the fuzzy control of shop the qualitative knowledge and information that the ship's operators have acquired through their experience can be logically described by the Linguistic control Rule (LCR). The algorithm of the control is made of the LCR and the control of the shop is performed by processing this algorithm implementing a computer. The problem in the fuzzy control is that it is very difficult to describe qualitative human knowledge in the LCR correctly. To tackle this difficulty a Fuzzy Neural Network (FNN) was introduced in this paper. The characteristics of the multi-layer FNN control system applied to the ship's steering system is investigated through the computer simulation, and the results were compared with those of the ordinary fuzzy control system of a ship. The results showed that the FNN method is a very effective to translate human knowledge into the LCR.

• International Journal of Computer Science & Network Security
• /
• 제24권2호
• /
• pp.25-30
• /
• 2024

Various new technologies and aiding instruments are always being introduced for the betterment of the challenged. This project focuses on aiding the mute in expressing their views and ideas in a much efficient and effective manner thereby creating their own place in this world. The proposed system focuses on using various gestures traced into texts which could in turn be transformed into speech. The gesture identification and mapping is performed by the Kinect device, which is found to cost effective and reliable. A suitable text to speech convertor is used to translate the texts generated from Kinect into a speech. The proposed system though cannot be applied to man-to-man conversation owing to the hardware complexities, but could find itself very much of use under addressing environments such as auditoriums, classrooms, etc

• 한국정보통신학회:학술대회논문집
• /
• 한국해양정보통신학회 2008년도 춘계종합학술대회 A
• /
• pp.345-348
• /
• 2008

최근 용접공정은 무인화 및 자동화 시스템의 구축이 급속하게 발전하고 있으며 정확한 용접현상의 해석을 위하여 여러 가지 신호처리 알고리즘을 적용하고 있다. 본 논문에서는 아크용접의 모니터링시스템의 구성에 있어서 용접 품질을 실시간으로 판단할 수 있는 효율적인 신경회로망을 제시하고, 학습 데이터의 선정을 위한 전처리 과정을 제시하며, 학습된 신경회로망을 이용하여 실제 용접이 이루어지는 파형에 대한 평가를 보다 정밀하고 정확하게 평가 할 수 있는 방법을 제시한다.

• 한국정보통신학회논문지
• /
• 제13권2호
• /
• pp.407-412
• /
• 2009

최근 용접공정은 무인화 및 자동화 시스템의 구축이 급속하게 발전하고 있으며 정확한 용접현상의 해석을 위하여 여러 가지 신호처리 알고리즘을 적용하고 있다. 본 논문에서는 아크용접의 모니터링시스템 구성에 있어서 용접품질을 실시간으로 판단할 수 있는 효율적인 신경회로망을 제시하고, 학습 데이터의 선정을 위한 전처리 과정을 제시하며, 학습된 신경회로망을 이용하여 실제 용접이 이루어지는 파형에 대한 평가를 보다 정밀하고 정확하게 평가할 수 있는 방법을 제시한다.

• 한국컴퓨터정보학회논문지
• /
• 제8권1호
• /
• pp.44-50
• /
• 2003

이동(Wireless ＆ Mobile) 통신단말기 사용자가 내부 네트워크 안의 정보서버로 접속을 원할 시에, 불법적인 침입으로부터 무선네트워크의 자원을 보호하기 위해 무선 정보보안이 요구된다. 이동통신단말기의 무선네트워크에 접속 시 정보보호를 위해 유일한 경로에 설치된 무선방화벽이 필요하다. 본 논문에서 방화벽의 주요 기능인 패킷필터링, NAT(Network Address Translate), 인증, 무결성, 그리고 감사기록 기능들이 무선상태에서 이루어지도록 무선방화벽을 설계한다. 그리고 무선방화벽상태에서 패킷 필터링, NAT, 인증, 무결성, 그리고 감사기록 기능을 구현하고, 기능들을 확인한다. 그리고 무선 방화벽의 연구개발을 위한 발전적인 제안을 통해 한국 무선방화벽의 기능향상과 성능개선에 도움을 주고자 한다.