• Title/Summary/Keyword: System Interface

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Design and Implementation of Real-time Audio and Video System Using Red5 and Node.js (Red5와 Node.js를 활용한 실시간 음성 및 영상 시스템의 설계 및 구현)

  • Kim, Hyeock-Jin;Kwark, Woo-Young
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.10
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    • pp.159-168
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    • 2014
  • The Web is a way to share documents and communicate. However, voice and video data can be transmission in real time and currently being developed by the objects and the objects that interact to further develop the Internet. Existing video and audio programs to transmission data to the interface of different types of systems a lot of constraint condition on the cost of the interface, extensibility. In this paper, voice and audio transmission system a different operating system, improve the constraints of the ERP system compatibility and extensibility is a open source based system developed by the research. The program is different types of systems and interface, extensibility with program design and development methodologies, and open source-based system composed This system is good for cost saving and extensibility. Therefore, systems research and development, Extensibility and excellent on the interface, system design and development methodologies, such as real-time video conferencing, HMI, and take advantage of your video available from SNS.

Implementation of a ECG monitoring system and portable pulse oximeter for $SpO_2$ using Compact Flash Interface (컴팩트 플래쉬 방식의 휴대형 산소포화도 측정 및 ECG 감시 시스템의 구현)

  • Kim, Dong-Hak;Kim, Young-Gil
    • Proceedings of the KIEE Conference
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    • 2002.11c
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    • pp.19-22
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    • 2002
  • In this paper, we aims to develop a microcontroll er-based ECG monitoring system and portable pulse oximeter using Compact Flash Interface. First, portable pulse oximeter system is designed to record 2 channel of biosignals simultaneously, including 1 channel of $SpO_2$ and 1 channel of pulse rate. It is very small and portable. Besides, the system makes it possible to measure a patient's condition without an additional medical equipment. We tried to solve the problems generated by a patient's motion. That is, we added an analog circuit to a traditional pulse oximeter in order to eliminate the change of the base line. And we used 2D sector algorithm. As present, SpO2 modules are completed. But there are still many further development needed in order to enhance the function. Especially, compact falsh interface remains the most to complete. Second, ECG monitoring system uses almost same as present 3-lead ECG system. But we focus on the analog part, especially in filter. The proposed filter is composed of two parts. One is a filter to remove the power-line interface. The other is a filter to remove the baseline drift. A filter to remove the power-line and the baseline drift is necessarily used in the ECG system. The implemented filter have three features; minimizing the distortion in DC component, removing the harmonic component of power-line frequency. Using compact flash interface, we can easily transfer a patient's personal information and the measured signal data to a network based server environment. That means, it is possible to implement a patient's monitoring system with low cost.

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A Study on Automatic Generation of Interface Circuits Based on FSM between Standard Buses and Ips (FSM을 이용한 표준화된 버스와 IP간의 인터페이스 회로 자동생성에 관한 연구)

  • Lee, Ser-Hoon;Moon, Jong-Uk;Hwang, Sun-Young
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.30 no.2A
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    • pp.137-146
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    • 2005
  • IP-based design methodology has been popularly employed for SoC design to reduce design complexity and to cope with time-to-market pressure. Interface modules for communication between system buses and IPs are required, since many IPs employ different protocols. Automatic generation of these interface modules would enhance designer's productivity and IP's reusability. This paper proposes an automatic interface generation system based on FSM generated from the protocol description of IPs. The proposed system provides the library modules for the standard buses to reduce the burdens of describing the protocols for data transfer from/to standard buses. Experimental results show that the area of the interface circuits generated by the proposed system had been increased slightly by 4.5% on the average when compared to manual designs. In the experiment, where bus clock is 100 Mhz and slave module clock is 34 Mhz, the latency of the interface had been increased by 7.1% in burst mode to transfer 16 data words. However, occupation of system bus can be reduce by 64.9%. A chip designer can generate an interface that improves the efficiency of system bus, by using this system.

A study on the computer application for efficient management of the power distribution system (효율적인 배전관리를 위한 컴퓨터 응용연구)

  • 이병철;서영노;정진현;고윤석;김호용
    • 제어로봇시스템학회:학술대회논문집
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    • 1993.10a
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    • pp.975-980
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    • 1993
  • In accordance with increase, if electronic power demanded, more efficient supervisory control of distribution system will be required. This study contains development of MMI(man-machine-interface) system with GUI(graphic-user-interface), for the automatic power distribution system. The main function of MMI system is to edit network of power distribution and to management of data base for network. The GUI function of MMI system enables more efficient management of power distribution system.

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A Study of Hypermedia System Based on Human- Computer Interface Perspective (이용자-컴퓨터 인터페이스 측면에서 고찰한 하이퍼미디어 시스템)

  • 김미진
    • Journal of the Korean Society for information Management
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    • v.9 no.2
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    • pp.154-180
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    • 1992
  • This article examined an overview of historical background and human factors issues/topics in the area of human-computer interface and identified various aspects of hypermedia systems such as concepts, characteristics, representative softwares. The integration of other information systems with hypermedia system for the improvement of user interface was investigated.

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The Analysis of the Contact Stresses at the Cam and Follower Interface in the Direct Acting Type Valve Train System (직접 구동형 밸브트레인 시스템의 캠-팔로워 접촉면의 접촉 응력 해석)

  • 조명래;신흥주;한동철
    • Tribology and Lubricants
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    • v.16 no.4
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    • pp.289-294
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    • 2000
  • This paper present the contact stresses, which considers the shear stress at the cam and follower interface in the direct acting type valve train system of a high speed engine. To determine the contact condition, the normal contact forces are calculated by using the lumped mass dynamic modeling. The line contact is considered between the cam and follower interface. The variations of dynamic stresses are presented as a function of camshaft rotational angle. Also the effects of various design parameters are investigated.

A Study for Component-based Integration Framework for Design System using Standard Interface (표준 인터페이스를 이용한 컴포넌트 기반의 설계 자원 시스템 통합에 관한 연구)

  • 이창근;이수홍;방건동
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.703-706
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    • 2001
  • This paper presents a component-based integration framework and its software component architecture for supporting the rapid integration of legacy design supporting systems in the distributed environment. Also, using standard interface, this software component architecture provides flexibility, extensibility and compatibility which ensure software components to be independent of the integration middleware and systems to be integrated.

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Development of a general purpose operator interface for a process control system (공정제어용 범용 Operator Interface 개발)

  • 이재만;김정훈;채영도
    • 제어로봇시스템학회:학술대회논문집
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    • 1986.10a
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    • pp.191-196
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    • 1986
  • This paper describes the development of general purpose operator interface which uses a color graphics terminal with a touch-sensitive screen as the control console. Operators interact with a process through a collection of application-dependent displays generated interactively by users familiar with the physical process. The use of real-time operating system(iRMX-86) and multitasking results in a straightforward and reliable development which may easily be extended to support multiple devices of varying types in the control console.

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An Effective Intention Reading from User Face for Human-Friendly Interface (인간친화형 인터페이스를 위한 사용자 얼굴에서의 효과적인 의도 파악)

  • 김대진;송원경;김종성;변증남
    • Proceedings of the IEEK Conference
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    • 2000.11c
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    • pp.25-28
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    • 2000
  • In this paper, an effective intention reading scheme is proposed for human-friendly interface. Soft computing techniques such as fuzzy logic and artificial neural networks are used for this. And Gabor filter based feature(GG feature) is also proposed to deal with local activity in the human face. It is based on human visual system and Gabor filter based approach is very popular in these days. The proposed scheme is adopted for human-friendly interface for rehabilitation service robotic system KARES II.

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