• Title/Summary/Keyword: Lon

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Implementation of LonWorks System for Remote Control and Telemetry Using Web Browser (Web browser를 활용한 원격제어 및 원격검침 LonWorks 시스템 구축에 관한 연구)

  • 홍원표;임구현
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.14 no.6
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    • pp.51-57
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    • 2000
  • This paper proposes the new concept & design method and implementation of LonWorks network system for remote monitoring & lighting dimming control and telemetry using Web network. The Experimental LonWorks network system for telemetry & remote monitoring and control are designed and fabricated. As a result, it is verified that LonWorks is open, inteoperable, reliable network system from the experimental results, especially, it seamlessly links the data and control networks, allowing the IP(internet) network to be treated as an extension of the LonWorks networks, and vice versa.

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Implementation of a modem for home network power line communication based on improved LonWorks technology (향상된 론웍 기반의 홈 네트워크용 전력선 모뎀 구현)

  • 마낙원;김녹원;김우섭;이창은;문경덕;김석기
    • Proceedings of the IEEK Conference
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    • 2002.06a
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    • pp.367-370
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    • 2002
  • In this paper, we propose a new node architecture LonWorh control Network for home network system environmint using power line communications. Using conventional Lon Work technology is a many disputable points for home network. LonWork network system needs high-cost development equipment. Moreover, conventional Lon Work system can not implement high-grade algorithms and variety application operation. because of the limitation of processing ability in Neuron chip. For that reason, the proposed structure is applicable to low-cost and more complex applications which are impossible in home network using conventional Lonworks structure. The proposed structure is implemented with some hardware and かone software for power line home network. The physical layer and the MAC layer of the LonTalk protocol within ton Work are implemented in hardware, which decreases the development costs communication processor. The upper of link layer of the LonTalk protocol is implemented with software, which decreases the development costs of software and increases the flexibility of tile system and increases the extension of the system. We verified the commercial feasibility of the proposed system through the power line tests with the existing LonWorks network in home network. As a result, it is concluded that the proposed architecture provides increasing flexibility and decreasing cost of the system.

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리눅스 기반의 홈 제어 네트워크 구성 관리 소프트웨어 다중 바인딩 연결 구조

  • 이창은;박준희;손영성
    • Proceedings of the Korean Information Science Society Conference
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    • 2003.10c
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    • pp.145-147
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    • 2003
  • 홈 제어 네트워크는 전력선으로 대표되는 물리적 네트워크를 기반으로 저속의 신뢰도 있는 통신을 한다. 현재 홈 제어 네트워크의 표준으로 거론되고 있는 것들은 CEBUS, EIB, LonWorks 등이 있다. 본 논문에서는 ETRI에서 작년에 개발한 론웍스(LonWorks) 시스템을 구성 관리하는 서버 소프트웨어인 LonWare(version 2.0)의 다중 바인딩을 지원하기 위한 연결(Connections) 구조를 제안한다. Echelon사에서 제안하는 LonWorks 시스템의 구성관리 도구로서의 LonMaker는 자체적으로 개발한 LNS (LonWorks Network Service)라고 하는 비 표준화된 구성 관리 기술을 통해서 네트워크를 관리하도록 지원하며, 상기한 LNS를 인프라로 활용하는 도구로서, LNS는 빌딩 혹은 가정 내에 LonWorks 네트워크로 연결되어 있는 디바이스들에 대한 정보를 DB화하여 구축된 자료를 기반 으로 디바이스들간에 연동이 가능하도록 지원한다. 그러나 고가이며, 바인딩 과정 시 론웍스 네트워크 상에 필요 이상의 패킷을 발생시켜 전력선 채널의 Bandwidth를 감소시키며, 또한 바이딩 과정을 마치는데 걸리는 시간을 증가시킨다. 이에 본 논문에서는 다중 바이딩을 지원하는 홈 네트워크 구성 관리 서버 소프트웨어의 연결 구조를 통해서 LonWare v2.0의 유니캐스트(unicast) 바이딩시 발생 했던 모든 문제를 제거하고, 바인딩에 필요한 패킷을 최적화 하여 바인딩에 걸리는 시간을 단축시키며, 성능의 주요한 요소인 디바이스의 리소스를 최소화하는 방법으로 접근하여 바인딩 시 처리능력의 한계를 가지고 있는 뉴런칩 기반의 론웍스 디바이스의 시스템 사양에 영향을 주지 않도록 제안하였다. 제안된 리눅스 기반의 홈 네트워크 구성 관리 소프트웨어의 다중 바인딩 기능을 통해 론웍스 네트워크상의 다양한 디바이스들간의 네트워크 다양화와 분산화 기능을 얻을 수 있었고, 기존의 고가의 해외 솔루션인 Echelon사의 LonMaker 소프트웨어를 사용하지 않고도 국내의 순수 솔루션인 리눅스 기반의 LonWare 3.0 다중 바인딩 기능을 통해 저 비용으로 홈 네트워크 구성 관리 서버 시스템 개발에 대한 비용을 줄일 수 있다.

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Implementation of Telemetry & Remote Monitoring System Using LonWorks (LonWorks를 이용한 원격검침.감시 시스템 구축에 관한 연구)

  • Hong, Won-Pyo;Lee, Won-Gyu;Park, Won-Kuk
    • Proceedings of the KIEE Conference
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    • 2000.07d
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    • pp.2410-2415
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    • 2000
  • This paper propose the new concept & design method and implementation of LonWorks network system for telemetry & remote monitoring and control in BAS. In order to apply this open system, the essential components of LonWorks is analyzed and a new concepts of its design method is proposed. In our experiment, LonWorks network system for telemetry & remote monitoring and control of lighting are designed and fabricated. As a result, it is verified that LonWorks is open, interoperable, reliable network system from the experimental results, especially, node development, network configuration & design, secure communication and MMI.

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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.

Development of Protocol Analyzer Suited for Maintenance of LonWorks Netwo가 for Safety Management of Underground Facilities (지하시설의 안전관리를 위한 LonWorks 네트워크의 유지보수에 적합한 프로토콜 분석기의 개발)

  • Kim, Hyung-Ki;Choi, Gi-Sang;Choi, Gi-Heung
    • Journal of the Korean Society of Safety
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    • v.25 no.6
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    • pp.203-209
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    • 2010
  • A compact ANSI/EIA 709.1 protocol analyzer system suited for maintenance of LonWorks network for safety management of underground facilities was developed and tested. The hardware is based on the TMS320LF2406A embedded system, and the software was designed using Visual C++6.0 under Windows XP environment. Connected to the LonWorks network the developed protocol analyzer decodes the raw packets and pass them to the master PC through USB port. Then on the PC the packets are processed and analyzed in various aspects and the key features that are essential to the maintenance of LonWorks network installed at underground facilities are displayed in a user-friendly format. Performance of the developed protocol analyzer was evaluated through a series of experiments, by measuring the speed of packet analysis and the error rate. The protocol analyzer proved to work reliably even under the increased bandwidth. However, more comprehensive tests under various underground environmental conditions are desired.

Oligomeric Structure of the ATP-dependent Protease La (Lon) of Escherichia coli

  • Park, Seong-Cheol;Jia, Baolei;Yang, Jae-Kyung;Le Van, Duyet;Shao, Yong Gi;Han, Sang Woo;Jeon, Young-Joo;Chung, Chin Ha;Cheong, Gang-Won
    • Molecules and Cells
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    • v.21 no.1
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    • pp.129-134
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    • 2006
  • Lon, also known as protease La, belongs to a class of ATP-dependent serine protease. It plays an essential role in degradation of abnormal proteins and of certain short-lived regulatory proteins, and is thought to possess a Ser-Lys catalytic dyad. To examine the structural organization of Lon, we performed an electron microscope analysis. The averaged images of Lon with end-on orientation revealed a six-membered, ring-shaped structure with a central cavity. The side-on view showed a two-layered structure with an equal distribution of mass across the equatorial plane of the complex. Since a Lon subunit possesses two large regions containing nucleotide binding and proteolytic domains, each layer of the Lon hexamer appears to consist of the side projections of one of the major domains arranged in a ring. Lon showed a strong tendency to form hexamers in the presence of $Mg^{2+}$, but dissociated into monomers and/or dimers in its absence. Moreover, $Mg^{2+}$-dependent hexamer formation was independent of ATP. These results indicate that Lon has a hexameric ring-shaped structure with a central cavity, and that the establishment of this configuration requires $Mg^{2+}$, but not ATP.

Study of Relationship between China BeunJungLonChi and DongEuiBoGam BeunJungLonCh (중의 변증론치와 동의보감의 변증론치에 대한 연구)

  • Ko Heung
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.1
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    • pp.16-21
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    • 2004
  • It is different from the DongEuiBoGam(東醫寶鑑) of Korea traditional medicine that China BeunJungLonChi(中醫辨證論治) was made for the scientific and systematic assortment of China medicine. Symptom(症)is more important than symptom complex(證)in china BeunJungLonChi at DonEuBoGam. And unusual symptoms generally are diseases in DongEuiBoGam. DongEuiBoGam is emphasis on body form, temper, body color, pulse(形氣色脈) and the functional difference of organs by body form and body color. there are many problems in order to unify the theory of Korea traditional medicine by china BeunJungLonChi. I suggest that a new assortment that can combine Sasang constitutional medicine(四象醫學), Constitution-Acupuncture(體質針), and Hyungsang medicine(四象醫學) will be necessary. BeunJungLonChi : diagnosis and treatment based on overall analysis of symptoms and signs, the cause, nature and location of the illness and the patient's physical condition according to the basic theories of traditional Chinese medicine

Transmission Characteristics in LonWorks/IP-based Virtual Device Network (II)

  • Park, Gi-Heung;Song, Ki-Won;Kim, Jong-Hwi;Park, Gi-Sang
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.121.6-121
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    • 2002
  • Web-based virtual machine/manufacturing system (VMS) utilizes Virtual Device Network (VDN.) VDN inevitably involves the implementation of Distributed Monitoring and Control Networks (DMCN). In general, one needs to integrate device (control) network and IP network to realize DMCN over IP network or internet, which can be viewed as a VDN. In this study, LonWorks networking technology is used for device network and the transmission characteristics of LonWorks/IP-based VDN is investigated. A method to minimize the transmission delay in the LonWorks/IP networks is also suggested.

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Implementation of Internet Based Control by Developing LonWorks Intelligent Control Modules

  • W.P. Hong;Park, W.G.
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.70.5-70
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    • 2001
  • This paper proposes a new Internet based control concept & design method and implementation of LonWorks network system for remote intelligent control. The experimental network system using i.LON Web server is designed and fabricated. It is also verified that the developed control modules with LonTalk protocol have available, interoperable, and reliable performance characteristics from the experimental results. Especially, the results provide a available technical data for remote home, building & plant automation control.

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