• Title/Summary/Keyword: networking for manufacturing automation

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A Study on the Digitalization of the Fashion Industry

  • Lee, Mi-Ryang;Kim, Moon-Sook
    • The International Journal of Costume Culture
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    • v.4 no.2
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    • pp.124-137
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    • 2001
  • The digitalization of the fashion industry refers to 'the reception of the digital environment by the industry.'Re paper presented 3 conceptual categories of 'technological environment','information environment'and 'business environment'concerning the scope of digitalization, including from the introduction and use of new technical media to new ways of thinking following the paradigm changes. And it demonstratively analyzed digitalization factors and digitalization level of fashion businesses related to the factors by 7 fashion categories. The analytic result and its suggestions are as follows. First, the five digitalization factor of the fashion industry are defined : manufacturing Process automation, computer systemization, information networking, e-business, and small batch production. Second the digitalization degree of fashion firms decreases in the order of information networking, small batch Production, manufacturing Process automation, computer systemization, and e-business, with information networking on the top and e-business, recent focal point of interest, at the bottom. Third, as for the digitalization of each clothing category, men's formal dress and unisex display the highest level of the general digitalization.

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The Implementation of Communication Protocol for Semiconductor Equipments using Directed Diffusion (직접 확산 방식을 이용한 반도체 장비 통신 프로토콜 구현)

  • Kim, Doo Yong;Cho, Hyun Chan
    • Journal of the Semiconductor & Display Technology
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    • v.12 no.2
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    • pp.39-43
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    • 2013
  • The semiconductor equipments generate necessary data through communication networks for the effective manufacturing processes and automation of semiconductor equipments. For transferring data between semiconductor equipments and sending data to monitor equipments, several standards for communication protocols have been proposed. Communication networks in semiconductor manufacturing systems will transmit a lot of data traffic, which can be vulnerable in data delay and network failure. Therefore, it is required that data traffic need to be distributed. To accomplish this objective, we recommend the use of a redundant and valuable communication path which is constructed by a wireless sensor network. In this paper, the directed diffusion method for wireless sensor networking is suggested for networking semiconductor equipments. It is shown that how the directed diffusion is employed to connect semiconductor equipments. Also, we show how to implement the SECS of semiconductor equipments communication protocols based on the directed diffusion.

On-line Fussy Performance Management of Profibus Networks

  • Lee, Kyung-Chang;Song Kang;Kim, Dong-Wook;Lee, Suk
    • International Journal of Precision Engineering and Manufacturing
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    • v.1 no.2
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    • pp.5-13
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    • 2000
  • Most networks for automation are tuned to an expected traffic condition ar their design stage. During their actual operations, however, the networks experience considerable changes in traffic from time to time. These traffic changes caused by common events like machine failure and production schedule change may adversely affect th network performance and, in turn , the performance of the connected devices. This paper presents experimental results for performance management of a Profibus-FMS network. The performance management aims to maintain a uniform level of network performance at all stations under changing network traffic. The performance management algorithm monitors the performance of individual network stations and commands the stations to change their timer values in order to have comparable performance at all stations. In order to determine the amount of timer change, the algorithm employs a set of fuzzy rules. The algorithm has been evaluated on a Profibus network.

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Evaluation of Fieldbus Protocal for Factory Automation (공장자동화를 위한 필드버스 프로토골의 평가)

  • Lee, Gyoung-Chang;Kim, In-Joon;Lee, Suk
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.3 s.96
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    • pp.116-127
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    • 1999
  • Networking for manufacturing is gaining importance as a nerve system of computer-integrated manufacturing (CIM). Among the various network types, the most inexpensive type called fieldbus is specifically aimed to interconnect simple devices such as sensors and actuators. For this purpose, there are several choices of the protocols such as Profibus. WorldFIP, Foundation Fieldbus, and IEC/ISA fieldbus. This paper presents the simulation results of Profibus and WorldFIP. Both protocols have been simulated in order to evaluate the performance such as transmission delay and throughput under different protocol parameter settings and traffic conditions.

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The Study of the Lean Printing System on the Prepress (Prepress 중심으로 한 Lean Printing System에 관한 연구)

  • Lee, Sang-Hyun;Ha, Young-Baeck;Oh, Sung-Sang;Choi, Jae-Hyuk;Yoo, Keun-Ryong;Lee, Jae-Su
    • Journal of the Korean Graphic Arts Communication Society
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    • v.29 no.3
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    • pp.77-96
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    • 2011
  • Most of all manufacturing industries are pursuing the manufacturing process innovation through the production process automation but the printing industry still does not get out of the analog ways of the entire process compared the entire manufacturing industry. Today, many printing enterprises have the difficulties by the short for delivery, multi-item small amount printing, high quality, rise in raw material cost, drop in receiving order cost, and etc. The printing industry can get over these difficulties and issues by implementing the compact workflow line, merge with the others, automatization and networking, minimization of the repetitive operation, efficiency of the working process, optimization of the operators' value creation, minimization of cost and materials and fast make-ready. The object of this thesis establishes the experimental data and study cases applicable in the printing industry by having high labor productivity and work in line with printing industry processes through "lean printing system".

On-line Fuzzy Performance Management of Profibus Networks (지능제어를 이용한 Profibus Network의 온라인 성능 관리)

  • Lee, Kyung-Chang;Kang, Song;Kim, Tae-Jun;Lee, Seok
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.117-117
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    • 2000
  • This paper presents experimental results for peformance management of a Profibus-FMS network. The performance management alms to maintain a uniform level of network performance at all stations under changing network traffic. The performance management algorithm monitors the performance of individual network stations and commands the stations to change their timer values in order to have comparable performance at all stations. In order to determine the amount of timer change, the algorithm employs a set of fuzzy rules. This algorithm has been evaluated on a Profibus network

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