• Title/Summary/Keyword: embedded system integration

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Design and Implementation of LonWorks/IP Router for Network-based Control (네트워크 기반 제어를 위한 Lonworks/IP 라우터의 설계 및 구현)

  • Hyun, Jin-Waok;Choi, Gi-Sang;Choi, Gi-Heung
    • Proceedings of the KIEE Conference
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    • 2007.04a
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    • pp.409-412
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    • 2007
  • Demand for the technology for access to device control network in industry and for access to building automation system via internet is on the increase. In such technology integration of a device control network with a data network such as internet and organizing wide-ranging DCS(distributed control system) is needed, and it can be realized in the framework of VDN(virtual device network). Specifications for device control network and data network are quite different because of the differences in application. So a router that translates the communication protocol between device control network and data network, and efficiently transmits information to destination is needed for implementation of the VDN(virtual device network). This paper proposes the concept of NCS(networked control system) based on VDN(virtual device network) and suggests the routing algorithm that uses embedded system.

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PC based Open Architecture Machine Controller for Intelligent Manufacturing system (지능생산시스템을 위한 PC 기반 개방형 머신제어기)

  • Park, Kyung-Su;Choi, Kyung-Hyun;Lee, Seok-Hee
    • Proceedings of the KSME Conference
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    • 2000.04a
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    • pp.884-889
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    • 2000
  • This paper describes the design and implementation of PCOAMC(PC-based Open Architecture Machine Controller) to be flexible and independent from the vendor-oriented hardware and software structure. This openness approach is able to enhance an intelligence and integration of a manufacturing system. The development methodology of PcOAMC is an Object-Oriented approach, and all modules in PcOAMC are modelled using UML(Unified Modelling Language) that provides an easy understanding and modification. In order to demonstrate an applicability of PcOAMC, a simple test has been executed by using the Client-Server system consisting of two PcOAMCS and bus monitoring system. The good results have been obtained, so that the developed controller is expected to be embedded into IMS(Intelligent Manufacturing System) as a basic unit.

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A Study on the Adoption of SPICE in the Railway Software (철도분야 소프트웨어로의 SPICE 적용연구)

  • Joung, Eui-Jin;Shin, Kyung-Ho
    • Proceedings of the KIEE Conference
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    • 2006.04b
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    • pp.316-318
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    • 2006
  • It can be considered that the safety of software is combined with that of hardware, and also directly connected to system safety. Because the software in the railway system takes the form of Embedded that let it behave at the system level, instead of independent operation, the safety of the railway S/W is also important. The approach, for ensuring the quality and safety of those software, can be considered with two points of view. Those are views seeing from products, and from processes. The two points of approach are all necessary in the railway system. For the first of all, the process approach is to validate maturity of the organizations in accordance to the judging processes of organizations, which are specified by CMMI(Capability Maturity Model Integration) or SPICE(Software Process Improvement and Capability dEtermination: ISO/IECl5504). In this paper, as the first step of them, we are trying to find approaches to estimate the maturity of manufacturer and assessment organization in the railway system.

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Design of Multi-protocol IED for Networked Control System of Multi-Induction Motor in Industrial Fields

  • Hong, Won-Pyo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.26 no.10
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    • pp.60-71
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    • 2012
  • This paper proposes a new design and implementation of multi-protocol IED for networked control system of multi-induction motor in industrial fields. The experimental multi-induction motor based multi-protocol IED of Modbus/LonTalks/TCP/IP module is designed and fabricated. This article addresses issues in architecture of LonWorks/Ethernet sever, embedded processors architecture for converting Modbus protocol to LonTalks protocol, integrating preconfigured software, and Internet technologies. It is also verified that the multi-induction motor control and monitoring system using LonWorks/Ethernet server have available, interoperable, reliable performance characteristics from the experimental results, especially, the seamless integration of TCP/IP networks with control networks allows access to any control point from anywhere. Thus, the results provide available technical data for remote distributed motor control system of industrial field or building microgrid with LonWorks BAS.

Application Software Modeling and Integration Methodology using AUTOSAR-ready Light Software Architecture (AUTOSAR 대응 경량화 소프트웨어 아키텍처를 이용한 어플리케이션 소프트웨어 모델링 및 통합 방법)

  • Park, In-Seok;Lee, Woo-Taik;SunWoo, Myoung-Ho
    • Transactions of the Korean Society of Automotive Engineers
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    • v.20 no.6
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    • pp.117-125
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    • 2012
  • This paper describes a model-based software development methodology for AUTOSAR-ready light software architecture(AUTOSAR-Lite). The proposed methodology briefly represents an application software modeling technique using Matlab/Simulink. Using the proposed technique, application software architecture elements (e.g. software components, runnables, and interfaces) and functional behaviors can be designed in a single modeling environment. From the designed model, the codes of application software is automatically generated using Real-Time Workshop Embedded Coder. The generated application software is easily integrated with hand-coded basic software using the proposed method. In order to evaluate the proposed methodology, a diesel engine management system for a passenger car was employed as a case study. Based on the methodology, 8 atomic software components and 52 runnables are successfully developed, and they are evaluated by engine experiments. From this case study, AUTOSAR compatible model-based application software was successfully developed, and the effectiveness of the proposed methodology was evaluated.

A Design and Implementation of the Integrated Framework linked Manufacturer-Specifications of the Elevators based on Android System (안드로이드 시스템 기반 승강기 제조사별 통합 연동 프레임워크 설계 및 구현)

  • Kim, Woon-Yong;Park, Seok-Gyu
    • Journal of Advanced Navigation Technology
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    • v.17 no.6
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    • pp.785-791
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    • 2013
  • Recently, Elevator industry is pursuing new challenges to the model of the IT convergence. The core of the convergence technologies may be the effective control and maintenance of the machine. However, because current elevator management model provides each specific model for his elevator, the management models have a variety of heterogeneous configuration so that it makes management companies to manage the elevators with many overhead. In this paper, we propose the integration framework for the various elevator models. We use proposed system based on the Android framework that is rapidly expanding technology in the embedded environment, and we propose design approach for the integration of variety of lift devices so that it provide a more efficient and stable service environment. In this way, we could integrate various device models of an elevator for the management and maintenance effectively and quickly.

A System-in-Package (SiP) Integration of a 62GHz Transmitter for MM-wave Communication Terminals Applications

  • Lee, Young-Chul;Park, Chul-Soon
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.4 no.3
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    • pp.182-188
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    • 2004
  • We demonstrate a $2.1\;{\times}\;1.0\;{\times}\;0.1cm^3$ sized compact transmitter using LTCC System-in-Package (SiP) technology for 60GHz-band wireless communication applications. For low-attenuation characteristics and resonance suppression of the SiP, we have proposed and demonstrated a coplanar double wire-bond transition and novel CPW-to-stripline transition integrating air-cavities as well as novel air-cavities embedded CPW line. The fabricated transmitter achieves an output of 13dBm at a RF frequency of 62GHz, an IF frequency of 2.4GHz, and a LO frequency of 59.6GHz. The up-conversion gain is 11dB, while the LO signal is suppressed with the image rejection mixer below -21.4dBc, and the image and spurious signals are also suppressed below -31dBc.

Numerical Analysis of Tip Leakage Flows in Axial Flow Turbine Rotors (축류터빈 동익 내부의 누설유동에 관한 수치해석)

  • Chung, H.T.
    • Journal of Power System Engineering
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    • v.9 no.1
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    • pp.23-29
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    • 2005
  • Numerical analysis of three-dimensional viscous flow-fields in the turbine rotor passages was carried out to investigate flow physics including the interaction between secondary vortices, tip leakage vortex, and the rotor wake. The blade tip geometry was accurately modeled adopting the embedded H grid system. An explicit four-stage Runge-Kutta scheme was used for the time integration of both the mean flow and turbulence equations. The computational results for the entire turbine rotor flows, particularly the tip clearance flow and the secondary flows, were interpreted and compared with the experimental data from the Penn State turbine stage. The predictions for major features of the flow field have been found to be in good agreement with the experimental data.

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A Modeling Optimization for Numerical Analysis of GPR in Multi-Grounding Systems (다중 접지계 GPR 수치 해석을 위한 최적 모델링 기법)

  • Lee, Jae-Bok;Chang, Sug-Hun;Myung, Sung-Ho;Cho, Yeon-Gyu
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.17 no.11 s.114
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    • pp.1120-1131
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    • 2006
  • This paper describes the numerical analysis techniques using the Combined Integration/Matrix Method to calculate ground potential rise which can be occurred in the various grounding systems. Combined Integration/Matrix Method is used to reduce the error and computation time with the analytical integration equation and the proper segmentaion of earth embedded conductor. To do it, optimal segmentaion method for the buried conductors is presented through error analysis which is capable of applying the practical scaled various grounding systems. The optimum length of segmented element is much co-related with the buried depth of grounding electrode and the maximum length of buried electrode. As a result, less 3 precent errors was obtained by proposed model. The proposed model is applied to verify an effect of multi-grounding problems which was aroused much controversy with separated or common grounding between the high power grounding system and low power grounding system such as signal and telecommunication grounding.

Framework for Improving Mobile Embedded Software Process (모바일 임베디드 소프트웨어 프로세스 개선 프레임워크)

  • Shin, Seung-Woo;Kim, Haeng-Kon;Kim, Soung-Won
    • Journal of Internet Computing and Services
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    • v.10 no.5
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    • pp.195-209
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    • 2009
  • The embedded software has been become more important than the hardware in mobile systems in ubiquitous society. The improvement models such as CMMI(Capability Maturity Model Integration) and SPICE(Software Process Improvement and Capability dEtermination) are used to improve the quality of software in general systems. Software process improvement is also necessary for mobile embedded software development to improve its quality. It is not easy to apply the general software improvement model to the mobile embedded software development due to the high cost effectiveness and heavy process. On the other hand, XP has the characteristics on focused communications with customers and iteration development. It is specially suitable for mobile embedded software development as depending on customer's frequent requirement changes and hardware attributes. In this paper, we propose a framework for development small process improvement based XP(eXtreme Programming)'s practice in order to accomplish CMMI level 2 or 3 in mobile embedded software development at the small organizations. We design and implement the Mobile Embedded Software Process Improvement System(MESPIS) to support process improvement. We also suggest the evaluation method for the mobile embedded software development process improvement framework with CMMI coverage check by comparing other process improvement model. In the future, we need to apply this proposed framework to real project for practical effectiveness and the real cases quantitative. It also include the enhance the functionality of MESPIS.

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