• Title/Summary/Keyword: Remote Condition System

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Real time remote management for home network system using bio-physical sensor (생체 센서 시스템을 이용한 실시간 원격 홈 네트워크 시스템)

  • Kim, Jeong-Lae
    • Journal of the Korea Society of Computer and Information
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    • v.16 no.1
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    • pp.117-124
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    • 2011
  • This study was realized the home network system for home care by bio-physical sensor system, to convey for the remote physical signal. The composition condition has four functions of displacement point for a Vision, Somatosensory, Vestibular and CNS that the basic measurement used to a Heart Rate, Temperature, Weight. Physical signal are decided to search a max and min point with adjustment of 0.01 unit in the reference level. There were checked physical condition of body balance to compounded a physical neuroceptor of sensory organ for the measurement such as a Vision, Somatosensory, Vestibular, CNS, BMI. There are to check a health care condition through a combination of physical organ with a posturography of a exercise. The service of home network system can be used to support health care management system through health assistants in health care center and central health care system. It was expected to monitor a physical parameter for the remote control health management system.

인터넷을 이용한 공작기계 원격 고장 진단 시스템 구축에 관한 연구

  • 강대천;강무진
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.868-871
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    • 1995
  • In order to remain competitive, a manufacturing company needs to maintain the optimal condition of its manufacturing system. Machine tools as an important element of a manufacturing system comprises complex mechanical as well as electronic components. Therefore, diagnosing the troubles of machine tools is a tricky process which requires a lot of experience and knowledge. Since providing machine tool users with necessary services at the right time is very difficult and expensive, a remote diagnosis system is to be regarded as a good alternative,with which users can diagnose and fix the machine troubles. This paper presents a framework for a remote machine tool diagnosis system using the world wide web technology and backward reasoning expert system.

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Condition assessment of reinforced concrete bridges using structural health monitoring techniques - A case study

  • Mehrani, E.;Ayoub, A.;Ayoub, A.
    • Smart Structures and Systems
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    • v.5 no.4
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    • pp.381-395
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    • 2009
  • The paper presents a case study in which the structural condition assessment of the East Bay bridge in Gibsonton, Florida is evaluated with the help of remote health monitoring techniques. The bridge is a four-span, continuous, deck-type reinforced concrete structure supported on prestressed pile bents, and is instrumented with smart Fiber Optic Sensors. The sensors used for remote health monitoring are the newly emerged Fabry-Perot (FP), and are both surface-mounted and embedded in the deck. The sensing system can be accessed remotely through fast Digital Subscriber Lines (DSL), which permits the evaluation of the bridge behavior under live traffic loads. The bridge was open to traffic since March 2005, and the collected structural data have been continuously analyzed since. The data revealed an increase in strain readings, which suggests a progression in damage. Recent visual observations also indicated the presence of longitudinal cracks along the bridge length. After the formation of these cracks, the sensors readings were analyzed and used to extrapolate the values of the maximum stresses at the crack location. The data obtained were also compared to initial design values of the bridge under factored gravity and live loads. The study showed that the proposed structural health monitoring technique proved to provide an efficient mean for condition assessment of bridge structures providing it is implemented and analyzed with care.

Development of Remote control Speed Sprayer(l) -Trial-made Model- (원격제어(遠隔制御) 스피드 스프레이어의 개발(開發)(1) -시작기(詩作機)의 제작(製作)-)

  • Jang, Ik Joo;Lee, Ki Myung
    • Current Research on Agriculture and Life Sciences
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    • v.9
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    • pp.11-20
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    • 1991
  • This study was performed to avoid the chemical spraying environment condition during spraying operation for operator's safety through the development of a remote controlled speed sprayer. The summerized results of this study are as followings. 1. The developed VHF electric wave remote controlling system which could operate sixteen type of operation conditions with the circuit channels of 234 was highly adaptable to speed sprayer for the remote control. 2. The commerical wireless telephones adapted the DTMF type electric wave remote control system need not the tranceiver. 3. The wireless electric wave remote control system combined with one-chip microcomputer, which are low cost with compact in size, could be adaptable to the remote control of the speed sprayer for the wheel steering and speed control system, and to the remote control chemical application system.

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Influencing Factors on Dynamic Characteristics of Pantograph of Korean High Speed Train

  • Eom, Beom-Gyu;Mok, Jin-Yong;Lee, Hi-Sung
    • International Journal of Railway
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    • v.2 no.4
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    • pp.187-192
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    • 2009
  • Running test of the Korean High-Speed Train using remote controlled measuring system have been executed on the high speed track in order to evaluate and verify the performance of the train. In this paper, influencing factors on the contact force which represents dynamic characteristics between the pantograph and contact wire are analyzed, according to the track condition, span type and running condition. By the analytical study on the test data, we figured out that contact force and dynamic characteristics of the pantograph are mainly affected by running behavior of the train and the span distance which the train passes.

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Load Test and Remote Monitoring of P.C. Box Girder Bridge (P.C. BOX 교량의 재하시험 및 원격계측 유지관리 시스템)

  • Lee, Sung-Woo;Doobyong Bae;Lee, Sun-Goo
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1995.10a
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    • pp.122-131
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    • 1995
  • Load test for newly introduced precast segmental bridge is carried out to experimentally evaluate load carrying capacity, Analysis accompanied with the test is also performed and the results are used in the evaluation. In addition to initial evaluation of the bridge by load test, remote dynamic monitoring system to perform realtime assessment of the bridge condition is also under development. In this paper the procedure and results of load test and evaluation are presented along with introduction of dynamic monitoring system.

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Development of a Web-Based Remote Monitoring System for Evaluating Degradation of Machine Tools Using ART2 (ART2 신경회로망을 이용한 공작기계의 웹기반 원격 성능저하 모니터링 시스템 개발)

  • Kim, Cho-Won;Choi, Kook-Jin;Jung, Sung-Hwan;Hong, Dae-Sun
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.18 no.1
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    • pp.42-49
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    • 2009
  • This study proposes a web-based remote monitoring system for evaluating degradation of machine tools using ART2(Adaptive Resonance Theory 2) neural network. A number of studies on the monitoring of machine tools using neural networks have been reported. However, when normal condition is changed due to factors such as maintenance, tool change etc., or a new failure signal is generated, such algorithms need to be entirely retrained in order to accommodate the new signals. To cope with such problems, this study develops a remote monitoring system using ART2 in which new signals when required are simply added to the classes previously trained. This system can monitor degradation as well as failure of machine tools. To show the effectiveness of the proposed approach, the system is experimentally applied to monitoring a simulator similar to the main spindle of a machine tool, and the results show that the proposed system can be extended to monitoring of real industrial machine tools and equipment.

Iot Based Vision and Remote Control a Compact Mobile Robot System (IoT 기반의 비전 및 원격제어 소형 이동 로봇 시스템)

  • Jeon, Yun Chae;Choi, Hyeri;Yoon, Ki-Cheol;Kim, Gwang Gi
    • Journal of Korea Multimedia Society
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    • v.24 no.2
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    • pp.267-273
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    • 2021
  • Recently, the small-size mobile robots with remote-control are rapidly growth which market of mobile is increased in the world. Especially, the smart-phones are widely used for interface device in the small size of a mobile robot. The research goal is control system design which is applied to miniaturization of a mobile robot using smart-phone and it can be confirmed performance for designed system. Meanwhile, the fabrication of mini-mobile robot can also be remote-control operation through the WIFI performance of a smart-phone. The smart-phone is used to remote-control for robot operation which control data transmit to robot via the WIFI network. To drive the robot, we can observe by the smart-phone screen and it can easily adjust the robot drive condition and direction by smart-phone button. Consequentially, there was no malfunction and images were printed out well. However, in drive, because of blind spot, robot was bumped into obstacle. Therefore, the additional test is necessary to sensor for blind spot which sensor can be equipment to mobile robot. In addition, the experiment with robot object recognition is needed.

On-line Remote Diagnosis System for DC Bus Capacitor of Power Converters Using Zigbee Communication (Zigbee통신을 이용한 전력변환기기의 DC Bus 커패시터의 온라인 원격 고장진단 시스템)

  • Chung, Wan-Sup;Shon, Jin-Geun
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.64 no.1
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    • pp.29-34
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    • 2015
  • DC bus electrolytic capacitors are used in variety of equipments as smoothing element of the power converters because it has high capacitance for its size and low price. It is responsible for frequent breakdowns of many static converters and inverter drive systems. Therefore it is important to diagnosis monitoring the condition of an electrolytic capacitor in real-time to predict the failure of power converter. In this paper, the on-line remote diagnosis monitoring system for DC BUS electrolytic capacitors of power converter using low-cost type Zigbee communication modules is developed. To estimate the health status of the capacitor, the equivalent series resistor(ESR) of the component has to be determined. The capacitor ESR is estimated by using RMS computation using AC coupling method of DC link ripple voltage/current. The Zigbee communication-based experimental results show that the proposed remote DC capacitor diagnosis monitoring system can be applied to DC/DC converter and UPS successfully.

Design and Implementation of Optimal Control Algorithms for Building Energy Management (빌딩 에너지 관리 최적화 알고리즘 설계 및 구현)

  • Jin Jung-Hwa;Chung Sun-Tae
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.16 no.10
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    • pp.969-976
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    • 2004
  • Building energy saving is one of the most important issues in these days. Energy saving control strategies should be developed properly to achieve the saving. One of such area we could apply is the HVAC (Heating, Ventilation and Air-Conditioning) system. Through the optimal control algorithm for building energy management system (EMS), you can not only save the cost of building energy, but also protect HVAC system components against the unexpected condition. In order to verify the effectiveness of building energy saving, field test was accomplished for several months at 'A' building. And to get the measured data, remote control was used. If the remote control is used in BAS (Building Automation System), control and monitoring can be done for all of the building systems, such as HVAC, power, lighting, security and fire-alarm etc. anywhere any time. Using the remote control, Control and monitoring is possible for the testing system without going there. As the results of field test, we could reduce $5{\sim}10\%$ of the building energy cost.