• Title/Summary/Keyword: digital factory

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Development of Real-Time Distributed Simulator and Controller Based on Virtual Machine (가상머신을 이용한 실시간 분산처리 시뮬레이터 및 제어기)

  • 양광웅;박재현
    • Journal of Institute of Control, Robotics and Systems
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    • v.5 no.1
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    • pp.115-121
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    • 1999
  • Advanced digital computer technology enables the computer-based controllers to replace the traditional analog controllers used in factory automations. This replacement, however, brings up the side effects caused by the quantization error and non-real-time execution of control software. This paper describes the structure of real-time simulator and controller that can be used for design and verification of real-time digital controllers. The virtual machine concept adopted by the proposed real-time simulator makes the proposed simulator be independent from the specific hardware platforms. The proposed system can also be used in the loosely coupled distributed environments connected through local area network using real-time message passing algorithm and virtual data table based on the shared memory mechanism.

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A Study on the Design and Control Super-Precision Coarse and Fine Positioning Apparatus (초정밀 조미동 위치결정기구의 설계 및 제어에 관한 연구)

  • Kim, J.Y.;Cho, Y.T.;O, S.M.;Park, K.H.
    • Journal of the Korean Society for Precision Engineering
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    • v.13 no.10
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    • pp.88-93
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    • 1996
  • The study was carried out development a pricision positioning apparatus, consisting of DG servo motor and piezoelectric actuatior. This system is composed of fine and coarse apparatus, measurement system and control system. Peezoelectric actuator is designed for fine positioning. Coarse positioning using lead screw is droved by DC servo motor. Control system output a signal from laser interfermeter and capacitive sensor to amplifer of DC servo motor and piezoelectric actuator after digital signal processing (DSP). Resolution of this apparatus measure with laser interferometer and microsense

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Design of a Vehicle Assembly Line Using PLC Simulation (PLC 시뮬레이션을 이용한 자동차 조립 라인 설계)

  • Lee, Chang-Ho;Wang, Gi-Nam;Park, Sang-Chul
    • Korean Journal of Computational Design and Engineering
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    • v.14 no.5
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    • pp.323-329
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    • 2009
  • Auto-makers can only remain competitive by producing high quality vehicles in an efficient way. In designing a production line, one of the most important objectives of digital manufacturing is to verify design errors as early as possible. In terms of the cost and time saving, it is very essential to start the construction of a production line with a proven design which is error-free. Likewise, this paper aims to implement PLC verification using an example. The verification in automobile manufacturing means verifying PLC program, which control automatic devices. In this paper, we built a virtual factory to implement PLC simulation and introduced verification procedure using PLC Studio. Finally, we can prove the availability for the PLC verification.

Communication of a Model for Education of Identity Based on the Epistles (Referring to the film, Charlie and the Chocolate Factory) (성품교육에 있어서 영화의 모델을 통한 소통연구 (영화 '찰리와 초콜릿공장'을 중심으로))

  • Kim, Deok-Man
    • Journal of Digital Convergence
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    • v.11 no.12
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    • pp.769-775
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    • 2013
  • This paper studies the hermeneutical meaning and educational application of the teaching in "following the model" in the epistles. The film "Charlie and the Chocolate Factory" is also used analogically to supplement the educational communication. It has to be said that following the example involves not just talking about it but also living out the stories of self-renunciation, tolerance and forgiveness.

Development of Distributed Smart Data Monitoring System for Heterogeneous Manufacturing Machines Operation (이종 공작기계 운용 관리를 위한 분산 스마트 데이터 모니터링 시스템 개발)

  • Lee, Young-woon;Choi, Young-ju;Lee, Jong-Hyeok;Kim, Byung-Gyu;Lee, Seung-Woo;Park, Jong-Kweon
    • Journal of Digital Contents Society
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    • v.18 no.6
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    • pp.1175-1182
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    • 2017
  • Recent trend in the manufacturing industry is focused on the convergence with IoT and Big Data, by emergence of the 4th Industrial Revolution. To realize a smart factory, the proposed system based on MTConnect technology collects and integrates various status information of machines from many production facilities including heterogeneous devices. Also it can distribute the acquisited status of heterogeneous manufacturing machines to the remote devices. As a key technology of a flexible automated production line, the proposed system can provide much possibility to manage important information such as error detection and processing state management in the unmanned automation line.

Design and Implementation of Network Self-Configuration Based on Bluetooth (Bluetooth 기반 네트워크 자동형성 설계 및 구현)

  • Kang, Seong-Ho;Choo, Young-Yeol
    • Journal of Korea Multimedia Society
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    • v.11 no.10
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    • pp.1376-1384
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    • 2008
  • Numerous researches on network self-configuration have been conducted on Wireless Sensor Network (WSN) and Ad Hoc network but the results have not been applied yet for factory automation. This paper presents development of intelligent process management systems conducting process monitoring and control irrelevant to physical position of a plant operator. The systems are indispensable for diagnosis of rotating machines which cannot exploit wired network. The system was implemented in a Personal Digital Assistant (PDA) using Bluetooth communication protocol. When a mobile terminal reaches to communication range of the process management server, the server detects the mobile terminal to reconfigure plant network automatically. The server authenticates a user of the terminal to download and installs monitoring and control program considering authorized level of the user. If the terminal leaves communication range of the server, it deletes the node from the network and removes the program automatically to save resources and prevent security problems such as missing terminal. Operation of developed functions was verified in a testbed emulating steel-making plant.

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Influence of smart factor's implementing energy management system on innovation resistance and performance (스마트팩토리의 에너지관리시스템 수용확산요인이 구성원의 혁신저항 및 업무성과에 미치는 영향)

  • Chu, Jin-Young;Lee, Dong-Hun
    • Journal of Digital Convergence
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    • v.16 no.1
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    • pp.103-116
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    • 2018
  • In this study, we investigated the influence of smart factory's implementing energy management system on innovation resistance and work performance. We surveyed and analyzed 211 employees of system construction companies in the metropolitan area. In order to increase the introduction performance through diffusion of the energy management system, it is found that it is important to support the organizational-level management strategy to reduce the user's resistance to innovation. In conclusion, this study has implications for positively leading to the efficiency and management performance of the manufacturing process of the manufacturing enterprises, and it is necessary to follow - up studies considering the characteristics of the energy management system and the expansion of the research scope in the future.

Research on Precision Processing Production System based on Manufacturing Execution System (제조 실행 시스템 기반 정밀 가공 생산 시스템 연구)

  • Seong-Uk Shin;Hyun-Mu Lee;Seung-Ho Park
    • Journal of Digital Policy
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    • v.2 no.4
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    • pp.17-23
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    • 2023
  • In this paper, in order to improve production processing for small and medium-sized precision processing companies, we apply a manufacturing execution system to existing process methods and integrate precision processing data to strengthen process management within the company, increase facility operation efficiency, and realize a reduction in defect rates. The differences in productivity improvement and cost reduction rates were compared and analyzed. As a result, production productivity improved by 7.0% and product defect rate improved by 0.1% point due to the introduction of the manufacturing execution system. It was confirmed that manufacturing cost reduction improved by 10.0% and delivery compliance rate improved by 1.1%. If additional smart factory technology is applied based on the manufacturing execution system proposed in this study in the future, sales and profits in the processing industry are expected to increase due to an increase in the PQCD index.

Innovation and craft in a climate of technological change and diffusion

  • Hann, Michael A.
    • The Research Journal of the Costume Culture
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    • v.25 no.5
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    • pp.708-717
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    • 2017
  • Industrial innovation in Britain, during the eighteenth and nineteenth centuries, stimulated the introduction of the factory system and the migration of people from rural agricultural communities to urban industrial societies. The factory system brought elevated levels of economic growth to the purveyors of capitalism, but forced people to migrate into cities where working conditions in factories were, in general, harsh and brutal, and living conditions were cramped, overcrowded and unsanitary. Industrial developments, known collectively as the 'Industrial Revolution', were driven initially by the harnessing of water and steam power, and the widespread construction of rail, shipping and road networks. Parallel with these changes, came the development of purchasing 'middle class', consumers. Various technological ripples (or waves of innovative activity) continued (worldwide) up to the early-twenty-first century. Of recent note are innovations in digital technology, with associated developments, for example, in artificial intelligence, robotics, 3-D printing, materials technology, computing, energy storage, nano-technology, data storage, biotechnology, 'smart textiles' and the introduction of what has become known as 'e-commerce'. This paper identifies the more important early technological innovations, their influence on textile manufacture, distribution and consumption, and the changed role of the designer and craftsperson over the course of these technological ripples. The implications of non-ethical production, globalisation and so-called 'fast fashion' and non-sustainability of manufacture are examined, and the potential benefits and opportunities offered by new and developing forms of social media are considered. The message is that hand-crafted products are ethical, sustainable and durable.

Quality 4.0: Concept, Elements, Level Evaluation and Deployment Direction (품질 4.0: 개념, 요소, 수준 평가와 전개 방향)

  • Seo, Hojin;Byun, Jai-Hyun;Kim, Dohyun
    • Journal of Korean Society for Quality Management
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    • v.49 no.4
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    • pp.447-466
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    • 2021
  • Purpose: This article aims 1) to propose Quality 4.0 concept through surveying related literature, 2) to suggest key elements of Quality 4.0 by arranging the elements of Quality 4.0 that appeared in the literature, 3) to determine the levels of Quality 4.0, and 4) to suggest ideas for effective deployment of Quality 4.0. Methods: Eleven papers or documents are reviewed for Quality 4.0 concept; two papers and one document are investigated for key element extraction of Quality 4.0; and smart factory roadmap and industry 4.0 maturity model are studied to determine the levels of Quality 4.0. Results: 1) Quality 4.0 definition is proposed. 2) Three key elements are determined: data acquisition and analytics, connection and integration, and leadership and culture. 3) Six Quality 4.0 levels are determined. 4) Some suggestions are addressed for effective deployment of Quality 4.0. Conclusion: 1) Definition, key elements, levels, and some suggestions on effective deployment of Quality 4.0 are addressed. 2) Specific contents of Quality 4.0 education and training courses should be provided in the future. 3) Two future research directions are proposed.