• Title/Summary/Keyword: Multi-interface

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Oil Spill Response System using Server-client GIS

  • Kim, Hye-Jin;Lee, Moon-Jin;Oh, Se-Woong
    • Journal of Navigation and Port Research
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    • v.35 no.9
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    • pp.735-740
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    • 2011
  • It is necessary to develop the one stop system in order to protect our marine environment rapidly from oil spill accident. The purpose of this study is to develop real time database for oil spill prediction modeling and implement real time prediction modelling with ESI and server-client GIS based user interface. The existing oil spill prediction model cannot provide one stop information system for public and government who should protect sea from oil spill accident. The development of multi user based information system permits integrated handling of real time meteorological data from external ftp. A server-client GIS based model is integrated on the basis of real time database and ESI map to provide the result of the oil spill prediction model. End users can access through the client interface and request analysis such as oil spill prediction and GIS functions on the network as their own purpose.

An Implementation of Smartphone-based Multiple Musical Instruments Application supporting Social Playing (소셜 연주를 지원하는 스마트폰기반 다중 악기 애플리케이션 구현)

  • Hwang, Byung-Kon
    • Journal of Digital Contents Society
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    • v.12 no.4
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    • pp.575-583
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    • 2011
  • Due to the development of mobile devices and communication technology, cell phones have radically evolved from portable phones into smartphones and provided variety of services to a society. This paper presents Multi-user Musical Instrument application for smart phones based on band instruments such as piano, guitar, bass guitar, and drum. This application makes music playing from smartphone to integrative music data stream using the synchronization function of server. In addition, user can play it of smartphone efficiently by implementing a graphic user interface similar to real musical instruments.

A Study on Processor Monitoring for Integration Test of Flight Control Computer equipped with A Modern Processor (최신 프로세서 탑재 비행제어 컴퓨터의 통합시험을 위한 프로세서 모니터링 연구)

  • Lee, Cheol;Kim, Jae-Cheol;Cho, In-Jae
    • Journal of Institute of Control, Robotics and Systems
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    • v.14 no.10
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    • pp.1081-1087
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    • 2008
  • This paper describes limitations and solutions of the existing processor-monitoring concept for a military supersonics aircraft Flight Control Computer (FLCC) equipped with modern architecture processor to perform the system integration test. Safecritical FLCC integration test, which requires automatic test for thousands of test cases and real-time input/output test condition generation, depends on the processor-monitoring device called Processor Interface (PI). The PI, which relies upon on the FLCC processor's external address and data-bus data, has some limitations due to multi-fetching capability of the modern sophisticated military processors, like C6000's VLIW (Very-Long Instruction Word) architecture and PowerPC's Superscalar architecture. Several techniques for limitations were developed and proper monitoring approach was presented for modem processor-adopted FLCC system integration test.

A study on digital interface and signal process of pressure sensor (압력센서의 디지털 인터페이스와 신호처리에 관한 연구)

  • Kang, Hyung-Goo;Lee, Jong-Ho;An, Kwang-He;Lee, Chung-Ho;Park, Chan-Won
    • Journal of Industrial Technology
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    • v.17
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    • pp.95-101
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    • 1997
  • A smart pressure measurement system is described, which provides a precise A/D conversion and is highly suitable for communication with microprocessors. In order to avoid unstable problems of remote pressure sensing we have developed a new interface board which performs the A/D conversion and smart signal processing of the measured pressure data. Serial communication software which is based on ASCII code commands is also developed to process initial setup and calibration functions as well as multi-drop communication with PC. The test and evaluation of the proposed system has been shown as having the better performance compared to the other types of existing pressure measuring systems and will give good applications to the industrial use where a highly precision remote sensing is needed.

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EEG Feature Classification Based on Grip Strength for BCI Applications

  • Kim, Dong-Eun;Yu, Je-Hun;Sim, Kwee-Bo
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.15 no.4
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    • pp.277-282
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    • 2015
  • Braincomputer interface (BCI) technology is making advances in the field of humancomputer interaction (HCI). To improve the BCI technology, we study the changes in the electroencephalogram (EEG) signals for six levels of grip strength: 10%, 20%, 40%, 50%, 70%, and 80% of the maximum voluntary contraction (MVC). The measured EEG data are categorized into three classes: Weak, Medium, and Strong. Features are then extracted using power spectrum analysis and multiclass-common spatial pattern (multiclass-CSP). Feature datasets are classified using a support vector machine (SVM). The accuracy rate is higher for the Strong class than the other classes.

Validation of Efficient Welding Technique to Reduce Welding Displacements of Ships using the Elastic Finite Element Method

  • Woo, Donghan
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.3
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    • pp.254-261
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    • 2020
  • Welding is the most convenient method for fabricating steel materials to build ships and of shore structures. However, welding using high heat processes inevitably produces welding displacements on welded structures. To mitigate these, heavy industries introduce various welding techniques such as back-step welding and skip-step welding. These techniques effect on the change of the distribution of high heat on welded structures, leading to a reduction of welding displacements. In the present study, various cases using different and newly introduced welding techniques are numerically simulated to ascertain the most efficient technique to minimize welding displacements. A numerical simulation using a finite element method based on the inherent strain, interface element and multi-point constraint function is introduced herein. Based on several simulation results, the optimal welding technique for minimizing welding displacements to build a general ship grillage structure is finally proposed.

Fronthaul Technology Trends for 5G Mobile Communications (5G 이동통신을 위한 프론트홀 기술 동향)

  • Oh, D.S.;Lyu, D.S.;Lee, H.
    • Electronics and Telecommunications Trends
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    • v.32 no.5
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    • pp.97-106
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    • 2017
  • The introduction of new access technologies in 5G radio networks has had a considerable impact on the design of transport networks. Research activities are underway on new transport technologies in both the wireless and optical domains to support 5G transport. This paper provides an overview of the concept and requirements of a fronthaul. We also discuss the research activities of a new fronthaul interface for future 5G networks, a 5G integrated fronthaul/backhaul transport network (5G-Crosshaul), a next-generation fronthaul interface (NGFI), a mobile xhaul network (MXN), and a next-generation mobile fronthaul architecture with multi-IF carrier transmission scheme.

Case study of VR experience studying for smart education support (스마트 교육 지원을 위한 VR 체험학습 사례 연구)

  • Kim, Moon Seok
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.2
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    • pp.131-141
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    • 2014
  • UX design e-learning systems in order to establish the reasonable structured modules that are based on interdisciplinary research. E-learning by focusing on technology-related education, information technology and psychology, business administration, etc. has been studied in the field. However, an important part of smart education, one of the students in the field of self-directed research is lacking UX design. UX Design the User Interface and Visual Identity is central to the success of the content of the important research areas in modern smart society. This case study is for smart education digital textbooks considered the characteristics of the study. Presented by the Ministry of Education on the basis of the standard of digital textbook content of the e-learning features, including multi-disciplinary analysis of UX design requires a structured model is proposed. Research data on the smart education and virtual education in UX design being used as the basis for studies forward.

THE INTERFACE CONFIGURATION OF OVERSEA STATIONS AND OPERATION PLAN FOR KOMPSAT-2 LEOP

  • Baek Hyun-Chul;Kim Hae-Dong;Ahn Sang-Il;Kim Eun-Kyou
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.557-560
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    • 2005
  • The Korea Multi-Purpose SATellite-2 (KOMPSAT -2) will be launched into a circular sun synchronous orbit in Dec. 2005. For the mission operation of the KOMPSAT-2 satellite, KARl Ground Station (KGS) consists of the Mission Control Elements (MCE), Image Reception & Processing Elements (IRPE) and the overseas stations. For the oversea stations, the Kongsberg Satellite Services (KSAT) is the prime supplier of support service. KSAT has the capability to provide Tracking Telemetry and Commanding (TT&C) nominal, contingency and anomaly support for every single orbit for most polar orbiting satellites. Also KSAT provides nodal service through the network management functionality for all oversea ground stations. This paper describes the oversea stations and the support for Launch and nominal TT&C services for KOMPSAT-2 and the operation plan for KOMPSAT-2.

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Development of High Performance LonWorks Fieldbus Control Modules for Network-based Induction Motor Control (네트워크 기반 유도전동기 제어를 위한 고성능 LonWorks 제어모듈 개발)

  • Kim, Jung-Gon;Hong, Won-Pyo
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.319-324
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    • 2005
  • The interface between host processor and the ShortStack Micro Server may be a Serial Communication Interface(SCI). The LonWorks control module with a high performance is developed, which is composed of the 8 bit PIC Microprocessor for host processor and the smart neuron chip for the ShoretStack Micro Server. This intelligent control board is verified as proceeding the various function tests from experimental system with an boost pump and inverter driving systems. It is also confirmed that the developed control module provides stably 0-10VDC linear signal to the input signal of inverter driving system for varying the induction motor speed. Thus, the experimental results show that the fabricating intelligent board carried out very well the various functions in the wide operating ranges of boost pump system. This developed control module expect to apply to industrial fields to require the comparatively exact control and monitoring such as multi-motor driving system with inverter, variable air volume system and the boost pump water supply systems.

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