• Title/Summary/Keyword: Real-time monitoring

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Modeling and Interoperability Test Case Generation of a Real-Time QoS Monitoring Protocol

  • Chin, Byoung-Moon;Kim, Sung-Un;Kang, Sung-Won;Park, Chee-Hang
    • ETRI Journal
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    • v.21 no.4
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    • pp.52-64
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    • 1999
  • QoS monitoring is a kind of real-time systems which allows each level of the system to track the ongoing QoS levels achieved by the lower network layers. For these systems, real-time communications between corresponding transport protocol objects is essential for their correct behavior. When two or more entities are employed to perform a certain task as in the case of communication protocols, the capability to do so is called interoperability and considered as the essential aspect of correctness of communication systems. This paper describes a formal approach on modeling and interoperability test case generation of a real-time QoS monitoring protocol. For this, we specify the behavior of flow monitoring of transport layer QoS protocol, i.e., METS protocol, which is proposed to address QoS from an end-to-end's point of view, based on QoS architecture model which includes ATM net work in lower layers. We use a real-time Input/Output finite State Machine to model the behavior of real-time flow monitoring over time. From the modeled real-time I/OFSM, we generate interoperability test cases to check the correctness of METS protocol's flow monitoring behaviors for two end systems. A new approach to efficient interoperability testing is described and the method of interoperability test cases generation is shown with the example of METS protocol's flow monitoring. The current TTCN is not appropriate for testing real-time and multimedia systems. Because test events in TTCN are for message-based system and not for stream-based systems, the real-time in TTCN can only be approximated. This paper also proposes the notation of real-time Abstract Test Suite by means of real-time extension of TTCN. This approach gives the advantages that only a few syntactical changes are necessary, and TTCN and real-time TTCN are compatible. This formal approach on interoperability testing can be applied to the real-time protocols related to IMT-2000, B-ISDN and real-time systems.

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Real time positioning system for Logistics using GPS (GPS에 의한 물류의 모니터링 시스템 개발)

  • 최병길;유창환
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2003.04a
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    • pp.425-428
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    • 2003
  • Real time monitoring of object position is very important in Customs Free Zone like Incheon Airport and Incheon Harbor because all logistics must be controled spatially for effective management. Real time positioning system using GPS(Global Positioning System) is apt for the monitoring of logistics. In this study, we aims to develope real time monitoring system for logistics using GPS.

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The Implementation and Performance Testing of Real Time Information Processing System (실시간 정보처리 시스템 구축 및 성능 검증)

  • Jeong, Yoon-Seok;Kim, In-Su;Kim, Tae-Wan;Kim, Kee-Cheon;Chang, Chun-Hyon
    • The KIPS Transactions:PartA
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    • v.8A no.4
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    • pp.353-358
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    • 2001
  • In recent days, pc can process many things that mainframe have processed. Especially, in the transition from mainframe to pc, industries have needed the capabilities of Real Time information processing and Real Time monitoring for information control. But to support Real Time properties, it's needed to add Real Time modules and verify them. In this dissertation, we implemented and verified the Real Time System to support Real Time property. In addition, we implemented Web-based Real Time Monitoring System for Real Time information monitoring.

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Real Time Implementittion of Time Varying Nonstationary Signal Identifier and Its Application to Muscle Fatigue Monitoring (비정상 시변 신호 인식기의 실시간 구현 및 근피로도 측정에의 응용)

  • Lee, Jin;Lee, Young-Seock;Kim, Sung-Hwan
    • Journal of Biomedical Engineering Research
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    • v.16 no.3
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    • pp.317-324
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    • 1995
  • A need exists for the accurate identification of time series models having time varying parameters, as is important in the case of real time identification of nonstationary EMG signal. Thls paper describes real time identification and muscle fatigue monitoring method of nonstationary EMG signal. The method is composed of the efficient identifier which estimates the autoregressive parameters of nonstationary EMG signal model, and its real time implementation by using T805 parallel processing computer. The method is verified through experiment with real EMG signals which are obtained from surface electrode. As a result, the proposed method provides a new approach for real time Implementation of muscle fatigue monitoring and the execution time is 0.894ms/sample for 1024Hz EMG signal.

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A Design of New Real Time Monitoring Embedded Controller using Boundary Scan Architecture (경계 주사 구조를 이용한 새로운 실시간 모니터링 실장 제어기 설계)

  • 박세현
    • Journal of Korea Multimedia Society
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    • v.4 no.6
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    • pp.570-578
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    • 2001
  • Boundary scan architecture test methodology was introduced to facilitate the testing of complex printed circuit board. The boundary scan architecture has a tremendous potential for real time monitoring of the operational status of a system without interference of normal system operation. In this paper, a new type of embedded controller for real time monitoring of the operational status of a system is proposed and designed by using boundary scan architecture. The proposed real time monitoring embedded controller consists of test access port controller and an embedded controller proposed real time monitoring embedded controller using boundary scan architecture can save the hard-wire resource and can easily interface with boundary scan architecture chip. Experimental results show that the real time monitoring using proposed embedded controller is more effective then the real time monitoring using host computer.

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A Real Time, Internet Accessed, Monitoring System of the Ocean and Harbor Environment (인터넷을 이용한 실시간 해양항만 환경모니터링 시스템의 설계)

  • 서규우;김가야
    • Journal of Ocean Engineering and Technology
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    • v.18 no.1
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    • pp.10-15
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    • 2004
  • For effective conservation of the oceans and harbors, long-term and systematic development of the ocean and harbor monitoring system is essential. A monitoring system capable of real-time and accurate data acquisition is necessary for dealing with the level of contamination by situations, such as red tide and foods. This paper introduces an effective and economical real-time harbor environmental monitoring system that utilizes PCS wireless data communication technology. The monitoring system has various functions, such as multiple communication, TCP/IP protocol for wireless internet access, system time synchronization, and bi-directional communication between the measuring device and the server. The system has been implemented at Shinseondae harbor pier in Busan to validate the system's stability and effectiveness in data acquisition. The acquired real-time ocean and harbor environmental data is expected to have a large effect, when shared with the public through the Internet.

Design of Real Time Monitoring System of Ocean & Harbor Environment Using by Internet (인터넷을 이용한 실시간 해양항만 환경모니터링 시스템의 설계)

  • Seo, Kyu-Woo
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2003.05a
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    • pp.63-68
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    • 2003
  • For effective conservation of ocean and harbor, long-term and systematic development of the ocean and harbor monitoring system is essential. The monitoring system capable of real-time and accurate data acquisition is necessary for dealing with contamination such as red tide and the flood. This paper introduces the effective and economical real-time harbor environmental monitoring system that utilizes PCS wireless data communication technology. The monitoring system has various functions such as multiple communication, TCP/IP protocol for wireless internet access, system time synchronization, bi-directional communication between the measuring device and the server. The system has been implemented at Shinseondae harbor pier in Busan to validate the systems stability and effectiveness in data acquisition. The acquired real-time ocean and harbor environmental data is expected to have a large effect, when shared by public through internet.

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Development of Smartphone Application for Monitoring Container Cargo (컨테이너화물 모니터링을 위한 스마트폰 애플리케이션 개발)

  • Choi, Hyung-Rim;Son, Hee-Mok
    • Journal of Information Technology Services
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    • v.13 no.1
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    • pp.209-220
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    • 2014
  • Most of monitoring systems in logistics industry have limitations on monitoring container information in real-time. And customers only could check information gathered from certain points through web browser. That is why it is very hard to take actions in advance when emergency situation has happened. But if customers could check information such as position and status of freight in real-time through their mobile devices, they could take prompt actions. So, in this study, mobile application based on mobile devices is developed to monitor position and status information of the container in real-time. Entire devices monitoring container in aspect of logistics security are handled by workers in the field. So it is strongly required to develop monitoring system operated in mobile devices. For that reason this study aims to develop mobile application in order to monitor information related to container security and safety in real-time.

Runtime Software Monitoring Based on Binary Code Translation for Real-Time Software

  • Choi, Kiho;Kim, Seongseop;Park, Daejin;Cho, Jeonghun
    • Journal of Information Processing Systems
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    • v.15 no.6
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    • pp.1462-1471
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    • 2019
  • Real-time embedded systems have become pervasive in general industry. They also began to be applied in such domains as avionics, automotive, aerospace, healthcare, and industrial Internet. However, the system failure of such domains could result in catastrophic consequences. Runtime software testing is required in such domains that demands very high accuracy. Traditional runtime software testing based on handwork is very inefficient and time consuming. Hence, test automation methodologies in runtime is demanding. In this paper, we introduce a software testing system that translates a real-time software into a monitorable real-time software. The monitorable real-time software means the software provides the monitoring information in runtime. The monitoring target are time constraints of the input real-time software. We anticipate that our system lessens the burden of runtime software testing.

Design of Real-Time Monitoring System for Recycling Agricultural Resourcing Based on USN

  • Ji, Geun-Seok;Min, Byoung-Won;Oh, Yong-Sun;Mishima, Nobuo
    • International Journal of Contents
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    • v.9 no.4
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    • pp.22-29
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    • 2013
  • In this paper, we propose a integrated real-time monitoring system for recycling agriculture resourcing based on USN. We design and implement the monitoring system so that we can integrate the quality control of farmyard and liquid manures, barn environment monitoring, and positioning information control into a total management system performing recycling of excrement and manure. Selection of sensors and sensor-node construction and requirements, structure of wire/wireless communication networks, and design of monitoring program are also presented. As a result of operating our system, we can get over various drawbacks of conventional separated system and promote the proper circulation of excrement up to the farmyard. We confirm that these advanced effects arise from the effective management of the total system integrating quality control of farmyard/liquid manure, barn/farmhouse information, and vehicle moving monitoring information etc. Moreover, this monitoring system is able to exchange real-time information throughout communication networks so that we can construct a convenient information environment for agricultural community by converging IT technology with farm and stockbreeding industries. Finally we present some results of processing using our monitoring system. Sensing data and their graphs are processed in real-time, positioning information on the v-world map offers various moving paths of vehicles, and statistical analysis shows all the procedure from excrement occurrence to recycling and resourcing.