• Title/Summary/Keyword: Information Platform

Search Result 5,874, Processing Time 0.034 seconds

Development of a Metamodel-Based Healthcare Service System using OSGi Component Platform (OSGi 컴포넌트 플랫폼을 이용한 메타모델 기반의 건강관리 서비스 시스템 개발)

  • Kim, Tae-Woong;Kim, Hee-Cheol
    • Journal of Korea Multimedia Society
    • /
    • v.14 no.1
    • /
    • pp.121-132
    • /
    • 2011
  • A healthcare system is a type of medical information system that performs early detection and prevention in diseases by checking one's health condition periodically. Such a healthcare system is based on the signal obtained from the body. However, the developed existing system represents certain differences in the storage and description of vital signs according to medicare devices and the evaluation method of the system. It brings some disadvantages, such as lacks in the interoperability between systems, increases in the development cost of systems, and absence of a unified system. Thus, this study develops a healthcare system based on a meta model. For establishing this objective, this study describes and stores vital sign data based on the standard meta model of HL7 and applies OCL, which is a mathematical specification language, for defining wellness indexes and extracting data in order to evaluate health risk appraisals in health. In addition, this study implements components based on OSGi and assemble them in order to easily extend various devices and systems. By describing vital data based on the meta model, it represents some advantages that it makes possible to ensure the interoperability between systems and introduce the standardization of the evaluation method of health conditions through defining the wellness index using OCL. Also, it provides dear specifications.

Design of a XML-based Data Store Architecture for Run-time Process Monitor (실행시간 프로세스 모니터를 위한 XML 기반의 데이터 저장소의 설계)

  • Jeong, Yoon-Seok;Kim, Tae-Wan;Chang, Chun-Hyon
    • The KIPS Transactions:PartA
    • /
    • v.10A no.6
    • /
    • pp.715-722
    • /
    • 2003
  • Monitoring is used to see if a real-time system provides a service on time. The target of monitoring is not only an interior system but also a remote system which is located in the remote network. Monitoring needs data store to monitor data from each system. But a data store should be designed on the considerations of time constraints and data accessibility. In this paper, we present an architecture of XML-based data store and network delivery. XML-based data store is based on XML which is a standardized data format. So any platform which supports TCP/IP and HTTP can access data in the data store without any conversion. The XML-based delivery architecture is designed to reduce the time of data access and delivery. In addition, some experiments were tested to provide the timing guideline to be kept by a real-time system which uses the architecture presented in this paper. The architecture of XML-based data store and delivery designed in this paper can be used in the domains of remote real-time monitoring and control.

Development of Real-time and Simultaneous Quantification of Volatile Organic Compounds in Ambient with SIFT-MS (Selected Ion Flow Tube-Mass Spectrometry) (선택적다중이온질량분석기를 이용한 대기 중 휘발성유기화합물 실시간 동시분석법 개발 및 적용)

  • Son, Hyun Dong;An, Joon Geon;Ha, Sung Yong;Kim, Gi Beum;Yim, Un Hyuk
    • Journal of Korean Society for Atmospheric Environment
    • /
    • v.34 no.3
    • /
    • pp.393-405
    • /
    • 2018
  • Volatile organic compounds (VOCs) are representative air pollutants due to their detrimental effects on human health and their role in formation of secondary organic aerosols. Assessments and monitoring programs of VOCs using periodic grab sampling like Tedlar bags, canisters, and sorbent traps provide limited information, often with delay times of days or weeks. Selected ion flow tube mass spectrometry (SIFT-MS) is an emerging analytical technique for the real-time quantification of VOCs in air. It relies on chemical ionization of the VOCs molecules in air introduced into helium carrier gas using $H_3O^+$, $NO^+$, and $O_2{^+}$ precursor ions. Real-time monitoring method of 60 VOCs in the ambient air was developed using TO-15 standard gas mixture. Calibration curves, method detection limit, and quantitation reproducibility of the target compounds were tested. Dynamic dilution system was used to dilute standard gas from 0.174 ppbv to 100 ppbv, where calibration curves showed good linearity with $r^2$> 0.95 in all target analytes. Limit of detection (LOD) all compounds were sub ppbv, and some halogenated compounds showed pptv levels. Seven consecutive analyses of target compounds showed good repeatability with relative standard deviation of less than 10%. One day monitoring of VOCs in ambient air was conducted in Geoje. Average concentration of target VOCs in Geoje were relatively lower than other regions, among which formaldehyde showed the highest concentration ($15.4{\pm}5.78ppbv$). SIFT-MS provided good temporal resolution data (1 data per 3.2 minute), which can be used for identifying ephemeral short-term event. It is expected that SIFT-MS will be a versatile monitoring platform for VOCs in ambient air.

Development of Integrated Type Main Frame and Downhole Sonde Apparatus for Hydraulic Packer Testing in Seabed Rock under High Water Pressure (고수압 해저지반 수리특성 조사용 일체형 메인 프레임과 공내 측정장치 개발)

  • Bae, SeongHo;Kim, Jangsoon;Jeon, Seokwon;Kim, Hagsoo
    • Tunnel and Underground Space
    • /
    • v.28 no.3
    • /
    • pp.258-276
    • /
    • 2018
  • The accurate and quantitative ground information on the hydraulic conductivity characteristics of rock mass is one of the key factors for evaluation of the hydro-geological behaviour of rock mass around an excavated opening under high water pressure. For tunnel and rock structures in seabed, where the sea acts as an infinite source of water, its importance become greater with increasing construction depth below sea level. In this study, to improve the problems related with poor system configuration and incorrect data acquisition of previous hydraulic packer testing equipment, we newly developed an integrated main frame and 30 bar level waterproof downhole sonde apparatus, which were optimized for deep hydraulic packer test in seabed rock mass. Integration of individual test equipment into one frame allows safe and efficient field testing work on a narrow offshore drilling platform. For the integrated type main frame, it is possible to make precise stepwise control of downhole net injection pressure at intervals of $2.0kg_f/cm^2$ or less with dual hydraulic oil volume controller. To ensure the system performance and the operational stability of the prototype mainframe and downhole sonde apparatus, the field feasibility tests were completed in two research boreholes, and using the developed apparatus, the REV(Representative Elementary Volume) scale deep hydraulic packer tests were successfully carried out at a borehole located in the basalt region, Jeju. In this paper, the characteristics of the new testing apparatus are briefly introduced and also some results from the laboratory and in-situ performance tests are shown.

Architecture Design for the Image Processing System of Meteorological Satellite (기상위성 영상처리 기본체계 아키텍처 설계)

  • Kuk, Seung-Hak;Choi, Chang-Min;Seo, Yong-Jin;Kim, Hyeon-Soo;SaKong, Young-Bo;Lee, Bong-Ju;Jang, Jae-Dong;Oh, Hyun-Jong
    • Korean Journal of Remote Sensing
    • /
    • v.28 no.1
    • /
    • pp.79-93
    • /
    • 2012
  • This paper suggests a system architecture for the advanced meteorological satellite image processing system that is developing by NMSC(National Meteorological Satellite Center). The meteorology satellite image processing system has basically the image acquisition, the image processing, the data management, and the data dissemination functionalities. However, the existing system has some problems with respect to system integration as well as maintenance to accommodate new satellites and/or the new image processing systems for them which will be developed in the near future. To cope with these problems we propose a new system architecture for the advanced meteorology satellite image processing system. To do this we select as the architectural drivers the quality attributes such as modifiability, inter-operability, extendability, reusability, and platform independency and design the architecture to achieve such quality attributes. We expect that the new approach will solve current issues such as system integration, system dependency, or data management problems and will provide easy ways to incorporate new systems and to maintain them.

Low Frequency Characteristic of Seoul Subway Noise (서울지하철의 저주파소음 특성)

  • Jung, Sung-Soo;Shin, Su-Hyun;Kim, Ho-Chul;Lee, Woo-Seop
    • Journal of Korean Society of Environmental Engineers
    • /
    • v.27 no.11
    • /
    • pp.1193-1197
    • /
    • 2005
  • The low frequency noise below 200 Hz, including inaudible infra-sound, is known to affect human physiology ; circulation, respiration, nerve, endocrine, etc. Legislation has been introduced in several countries regarding evaluation guideline and measurement method of low frequency noise. In this work, low frequency characteristics of the Seoul subway transportation system was investigated in terms of the noise level and spectrum in the interior of running passenger car and the subway station. The interior sound pressure level of the passenger car was between 60 and 105 dB in the frequency range of $1{\sim}200\;Hz$ and varied with car speed. The marked sound pressure level peak at 8 Hz, infra-sound, observed for the most of Lines is shown to correspond to the resonance frequency of passenger car. The level of station platform noise was lower than the interior noise of running car because of the lower speed at arriving/departure. The results indicated that the interior noise level of running passenger car was inside the oppressive feeling region, proposed by Ochiai, in the frequency range of $20{\sim}80\;Hz$ which makes a little concern.

IoT Middleware for Effective Operation in Heterogeneous Things (이기종 사물들의 효과적 동작을 위한 사물인터넷 미들웨어)

  • Jeon, Soobin;Han, Youngtak;Lee, Chungshan;Seo, Dongmahn;Jung, Inbum
    • KIISE Transactions on Computing Practices
    • /
    • v.23 no.9
    • /
    • pp.517-534
    • /
    • 2017
  • This paper proposes an Internet of Things (IoT) middleware called Middleware for Cooperative Interaction of Things (MinT). MinT supports a fully distributed IoT environment in which IoT devices directly connect to peripheral devices, easily constructing a local or global network and sharing their data in an energy efficient manner. MinT provides a sensor abstract layer, a system layer and an interaction layer. These layers enable integrated sensing device operations, efficient resource management, and interconnection between peripheral IoT devices. In addition, MinT provides a high-level API, allowing easy development of IoT devices by developers. We aim to enhance the energy efficiency and performance of IoT devices through the performance improvements offered by MinT resource management and request processing. The experimental results show that the average request rate increased by 25% compared to existing middlewares, average response times decreased by 90% when resource management was used, and power consumption decreased by up to 68%. Finally, the proposed platform can reduce the latency and power consumption of IoT devices.

Development of Conversion Solutions for Interoperability of Applications on Different Mobile Internet Platforms (이기종 무선인터넷 플랫폼의 어플리케이션 상호 호환을 위한 변환 솔루션 개발)

  • Kang, Kyung-Bo;Kang, Dong-Hyun;Hong, Chang-Pyo;Ryu, Jong-Min;Lee, Joong-Hoon;Yoon, Jung-Han;Jwa, Jeong-Woo
    • The Journal of the Korea Contents Association
    • /
    • v.7 no.4
    • /
    • pp.1-9
    • /
    • 2007
  • Cellular operators develop high speed mobile internet and multi-function cellular phones to activate new business model based on mobile internet services. Domestic cellular operators evolve their mobile networks from cdma2000-1x and EvDo to HSDPA to activate high speed mobile internet services. They also develop mobile internet platforms such as WIPI, BREW, and J2ME on multi-function cellular phones having multimedia solutions such as camera, MP3, MPEG, 3D game engine, DMB, PAN such as bluetooth, IrDA, W-LAN, and location information using GPS. But, content providers have problems of redevelopment of the same mobile internet application on different mobile internet platforms provided by cellular operators. In this paper, we develop conversion solutions for interoperability of mobile internet applications on WIPI and BREW using an one-pass compiler. We confirm the performance the proposed conversion solutions for the API conversion rate, the converted file size, and the full conversion time using the popular mobile games which are the killer applications on WiPI and BREW.

Static Worst-Case Execution Time Analysis Tool for Scheduling Primitives about Embedded OS (임베디드 운영체제의 스케줄링 프리미티브를 고려한 정적 최악실행시간 분석도구)

  • Park, Hyeon-Hui;Yang, Seung-Min;Choi, Yong-Hoon
    • Journal of KIISE:Computing Practices and Letters
    • /
    • v.13 no.5
    • /
    • pp.271-281
    • /
    • 2007
  • Real-time support of embedded OS is not optional, but essential in contemporary embedded systems. In order to achieve these system#s real-time property, it is crucial that schedulability analysis for tasks having its property have been accomplished before system execution. Acquiring Worst-Case Execution Time(WCET) of task is a core part of schedulability analysis. Because traditional WCET tools analyze only its estimation of application task(i.e. program), it is not considered that application tasks are affected by scheduling primitives(e.g. scheduler, interrupt service routine, etc.) of OS when it schedules them. In this paper, we design and implement WCET analysis tool which deliberates on scheduling primitives of system using embedded Linux widely used in embedded OSes. This tool can estimate either WCET of normal application programs or corresponding primitives which have an influence on schduling property in embedded Linux kernel. Therefore, precision of estimation about schedulability analysis is improved. We develop this tool as Eclipse#s plug-in to work properly in any platform and support convenient interface or functionality for user.

Design of an OMNeT++ based Parallel Simulator for a Bio-Inspired System and Its Performance on PC-Clusters (생태계 모방 시스템을 위한 OMNeT++ 기반 병렬 시뮬레이터의 설계 및 PC 클러스터 상에서의 성능 분석)

  • Moon, Joo-Sun;Nang, Jong-Ho
    • Journal of KIISE:Computer Systems and Theory
    • /
    • v.34 no.9
    • /
    • pp.416-424
    • /
    • 2007
  • The Bio-Inspired system is a computing model that emulates the objects in ecosystem which are evolving themselves and cooperate each other to perform some tasks. Since it could be used to solved the complex problems that have been very difficult to resolve with previous algorithms, there have been a lot of researches to develop an application based on the Bio-Inspired system. However, since this computing model requires the process of evolving and cooperating with a lot of objects and this process takes a lot of times, it has been very hard to develop an application based on this computing model. This paper presents a parallel simulator for a Bio-Inspired system that is designed and implemented with OMNeT++ on PC clusters, and proves its usefulness by showing its simulation performance for a couple of applications. In the proposed parallel simulator, the functions required in the ERS platform for evolving and cooperating between objects (called Ecogent) are mapped onto the functions of OMNeT++, and they are simulated on PC clusters simultaneously to reduce the total simulation time. The simulation results could be monitored with a GUI In realtime, and they are also recorded into DBMS for systematic analyses afterward. This paper shows the usefulness of the proposed system by analyzing its performances for simulating various applications based on Bio-Inspired system on PC clusters with 4 PCs.