• Title/Summary/Keyword: Remote maintenance

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Design and Implementation of Data Logger for Elevator Remote Monitoring (승강기 원격 관제를 위한 데이터 수집기 설계 및 구현)

  • Gu, Bongen
    • Journal of Platform Technology
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    • v.8 no.4
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    • pp.3-10
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    • 2020
  • An elevator maintenance company maintains many types of elevators from many manufactures. So, they want to use manufacture- or type-independent elevator remote monitoring system. To do this, data logger, that receives elevator operating state data from sensor module installed in elevator and transfers the data to database, is required. In this paper, we design and implement data logger of elevator remote monitoring system for providing elevator operation state information to elevator maintenance company. Data logger receives elevator operation state data from sensor module installed in elevator, decodes data, and converts to API data for transferring elevator operation state data to server. In this paper, we describe the implementation of data logger using python, and show that our implementation of data logger is successfully operating in a real elevator operating environment via log message displayed at screen.

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Remote NDT for Inspection of Reactor Vessel Components of fast Breeder Test Reactor

  • Anandapadmanaban, B.;Srinivasan, G.;Kapoor, R.P.
    • Journal of the Korean Society for Nondestructive Testing
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    • v.23 no.5
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    • pp.520-525
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    • 2003
  • Fast Breeder Test Reactor (FBTR) is a 40MW (thermal) / 13.2MW (electrical), Plutonium - Uranium mixed carbide fuelled, sodium cooled, loop type nuclear reactor operating at Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam. Its main aim is to generate experience in operation of fast reactors and sodium systems and to serve as an irradiation facility for development of fuels and structural materials fur fast reactors. Nuclear reactors pose difficulties to the NDT techniques used to monitor the conditions of the internal components. Sodium cooled fast breeder reactors have their own typical difficulties in using the NDT techniques. These are due to the need for operation in aggressive environment of nuclear radiation and sodium (molten/vapour), as well as the need to maintain leak tightness of a very high order during all states of reactor operation and shutdown for fuel handling, maintenance and remote inspection. This paper discusses the following NDT techniques, which have been successfully used for the past 15 years in FBTR: (i) Periscope and Projector, (ii) Core Co-ordinate Measuring Device and, (iii) Optical fiberscope. The inspection using these techniques have given confidence for further reactor operation at high power by giving useful data on the conditions of the components inside the reactor vessel.

A Method of Select Sequence Control by Remote Control in Process Control designed by SFC (SFC로 설계된 공정제어에서 Remote Control에 의한 선택 시퀀스 제어 방법)

  • You, Jeong-Bong
    • Proceedings of the KIEE Conference
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    • 2007.04a
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    • pp.134-136
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    • 2007
  • Sequential Function Chart(SFC) is very easy to grasp the sequential flow of control logic and has the compatability for a maintenance, In process control, when an error is occurred, to execute other routine by force, we control the process by remote control. In this paper, we proposed the method of select sequence control by remote control in process control designed by Sequential Function Chart(SFC).

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A JAVA Client/Server Development for CAN-Based Remote Controls (CAN 기반의 원격제어 시스템을 위한 JAVA Client/Server 개발)

  • 정민식;박진우;이장명;이만형
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.324-324
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    • 2000
  • This paper presents a CAN-based control system, which supports tole-operations over the Internet. As a result, CAN-based control systems are opened up for remote control, monitoring and maintenance using WWW-technology. Most of the system is written in JAVA because it is small, powerful package and can easily be reused in the whole system on different platforms and implemented in embedded system. The effectiveness of proposed method is demonstrated through the experiments using a CAN-based manipulator, which allow remote access for Web-based Java clients.

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Development of Remote Laser Welding-Cutting Process for Maintenance of Hydraulic Connection Module on ITER Project (핵융합 발전로 냉각수 연결모듈의 원격 유지보수를 위한 레이저 용접-절단 공정개발)

  • Kim, Yong;Park, Ki-Young;Lee, Kyoung-Don
    • Journal of Welding and Joining
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    • v.30 no.1
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    • pp.51-58
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    • 2012
  • To assess hydraulic connections between sub-components of the International Thermonuclear Experimental Reactor (ITER) diagnostic port plug, the laser welding and ablation cutting process were investigated in order to be applied the remote handling maintenance. In this study, laser ablation cutting, which vaporizes a small amount of solid material directly into gas by focusing a laser beam of high density energy, is adopted in order to overcome the limitation of the normal laser cutting technology that the head should be placed as close to the work piece as possible to blow out melt metal at a distance. Complete cutting of a work piece is obtained by repetitive multi-passes of the laser beam. The welding and cutting process were tested on the sample work pieces and finally on a prototype of a hydraulic connection module for remote handling. The results showed that this process can be a promising candidate for hydraulic connections by remote handling.

A Design of Air Compressor Remote Control System Using USN Technology (USN 기술을 이용한 공기압축기 원격관리 시스템 설계)

  • Hwang, Moon-Young
    • Korean Journal of Artificial Intelligence
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    • v.6 no.1
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    • pp.1-10
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    • 2018
  • Compressed Air is an important energy source used in most factories nowadays. The automation trend using air compressor has been gradually increasing with the interest of the 4th industry in recent years. With the air compressor system, it is possible to construct the device at low cost and easily achieve automation and energy saving. In addition, With trend of FA, miniaturation and light weight manufacturing trend expand their use in the electronics, medical, and food sectors. Research method is to design the technology for the remote control of the following information as USN base. Development of flexible sensing module from real time observation module for fusion of IT technology in compressed air systems, design and manufacture of flexible sensing module, and realiability assessment. Design of real-time integrated management system for observation data of compressed air system - Ability to process observation data measured in real time into pre-processing and analysis data. This study expects unconventionally decreasing effect of energy cost that takes up 60~70% of air compressor layout and operation and maintenance management cost through USN(Ubiquitous Sensor Network) technology by using optimum operational condition from real time observation module. In addition, by preventing maintenance cost from malfunction of air compressor beforehand, maintenance cost is anticipated to cut back.

Graphic Simulator of Master/Slave Manipulator in Virtual Hot Cell

  • Kim, Sung-Hyun;Song, Tae-Gil;Lee, Jong-Yul;Yoon, Ji-Sup
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.100.6-100
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    • 2002
  • The crane and the master-slave manipulators (MSM) are widely used as a remote handling device in nuclear facilities such as the hot cell. The equipment to be installed in the hot cell should be optimally placed within the workspace of the wall-mounted slave manipulator for the maintenance operation. Also, the slave manipulator with the end effectors should be properly positioned and oriented for the dedicated maintenance operation. Hence, the workspace and the motion of the slave manipulator, as well as, the remote operation task should be analyzed before installing the manipulators and the hot cell equipment. For this purpose, the 3D graphic simulator, which simulates the remote operation o...

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Research of Real-Time Remote Operation for Quality Improvement of the Air-compressor : Case Study of Reciprocating Air-compressor (공기압축기의 품질향상을 위한 실시간 원격 운영시스템 연구 : 왕복동형 공기압축기 대상으로)

  • Im, Sang-Don;Kim, Jong-Rae
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.37 no.1
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    • pp.33-40
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    • 2014
  • Air compressor is an important facility with electric power in the industry. However, because of the noise and vibration of air compressor and is installed outside the building management difficulty. In this study, MCP (Micro Control Processor) to remote monitoring of the air compressor via the compressed air through improved quality and allows stable maintenance were designed. So, increase the productivity improvement of energy-saving effect can be obtained. Remote real-time information stored on your PC to manage air compressor equipment was higher reliability. Monitoring system is developed in this study was applied to embedded systems. It is easy to install air compressor, and low maintenance costs was to raise the economic impact.

Systemic Development of Tele-Robotic Interface for the Hot-Line Maintenance (활선 작업을 위한 원격 조종 인터페이스 개발)

  • Kim Min-Soeng;Lee Ju-Jang;Kim Chang-Hyun
    • Journal of Institute of Control, Robotics and Systems
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    • v.10 no.12
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    • pp.1217-1222
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    • 2004
  • This paper describes the development of tele-robotic interface for the hot-line maintenance robot system. One of main issues in designing human-robot interface for the hot-line maintenance robot system is to plan the control procedure for each part of the robotic system. Another issue is that the actual degree of freedom (DOF) in the hot-line maintenance robot system is much greater than that of available control devices such as joysticks and gloves in the remote-cabin. For this purpose, a virtual simulator, which includes the virtual hot-line maintenance robot system and the environment, is developed in the 3D environment using CAD data. It is assumed that the control operation is done in the remote cabin and the overall work process is observed using the main-camera with 2 DOFs. For the input device, two joysticks, one pedal, two data gloves, and a Head Mounted Display (HMD) with tracker sensor were used. The interface is developed for each control mode. Designed human-interface system is operated using high-level control commands which are intuitive and easy to understand without any special training.

A Bridge Transported Bilateral Force-Reflecting Servo-Manipulator for Maintenance of Nuclear Pyroprocessing Equipment

  • Park, B.S.;Jin, J.H.;Ko, B.S.;Lee, J.K.;Yoon, J.S.
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.2226-2230
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    • 2005
  • The Advanced Spent Fuel Conditioning Process (ACP), which is a pre-disposal treatment process for spent fuel is being developed at the Korea Atomic Energy Research Institute (KAERI). The ACP equipment is operated in an intense radiation field as well as in a high temperature. Thus, the equipment is designed in consideration of the remote handling and maintenance. This paper describes a Bridge Transported Bilateral Force-Reflecting Servo-Manipulator (BTSM) system, which is being developed to overcome the limitation of access that is a drawback of the mechanical Master-Slave Manipulators (MSMs), which are mounted on the ACP hot cell wall for the operation and the maintenance of the ACP equipment. The BTSM system was manufactured and temporally installed at the mockup to test its performance. The manufactured BTSM system will be installed at the ACP hot cell on June 2005 after the accomplishment of the performance test. The BTSM system consists of four components: a transporter with a telescoping tubeset, a slave manipulator, a master manipulator, and a remote control system. This system will highly increase the volume of coverage for the operation and maintenance of the ACP equipment.

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