• 한국정보통신학회논문지
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• 제21권11호
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• pp.2139-2144
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• 2017

산업 현장에 적용되는 통신방식 및 프로토콜의 경우 적용 현장의 환경 및 하드웨어 구성 사양에 따라 다양한 종류와 방식으로 현장에 적용이 되어 있다. 산업용 모니터링 시스템 개발 및 구축을 위해서는 해당 장비에 대하여 매번 하드웨어 시스템 분석과 통신 프로토콜 해석 작업을 통해 개발을 하고 있어 많은 개발 비용 및 시간이 들어가고 있다. 본 논문에서는 다양한 프로토콜을 사용하는 산업용 장비들의 통합 모니터링을 지원하기 위하여 사용자 요구에 맞도록 프로그램 가능한 프로토콜 변환 알고리즘을 소개하였다. 이 방법은 직렬통신, NMEA, CAN, Modbus 통신 방식으로 전송된 데이터에서 필요한 데이터를 추출하여 Ethernet으로 전송이 가능하다. 실험을 위하여 여러 통신 방식을 지원하는 통신 게이트웨이 모듈을 구현하였고 이를 통하여 데이터 변환 및 전송 실험을 진행하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 A
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• pp.181-183
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• 2003

This paper presents an operator training simulator for power system restoration against massive black-out. The system is designed especially focused on the generality and convenient setting up for initial condition of simulation. The former is accomplished by using on line calculation methodology, and PSS/E data is used to define the initial situation. The proposed simulator consists of three major components - the Power flow(PF) module, data conversion(CONV) module and CUI subsystem. PF module calculates power flow, and then checks overvoltage of buses and overflow of lines. CONV module composes an Y-Bus array and a data base at each restoration action. The initial Y-Bus array is constructed from PSS/E data. The user friendly GUI module is developed including graphic editor and built-in operation manual. As a result, the maximum processing time for one step operation is 15 seconds, which is adequate for training purpose. Comparison with PSS/E simulation proves the accuracy and reliability of the training system.

• 한국콘텐츠학회논문지
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• 제10권8호
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• pp.59-65
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• 2010

본 논문은 MPEG-2 Transport Stream (TS) 데이터를 인터넷 망에 전송하기 위한 하드웨어 설계를 제안한다. 제안한 설계는 1개에서 7개 내의 비디오/오디오 스트림을 IP 패킷으로 변환하는 캡슐화 모듈과 연속적인 여러 개의 TS 패킷들로부터 DSM-CC PS 패킷을 추출하여 재구성한 후 IP 패킷으로 변환하는 패킷변환 모듈로 구성된다. 그래서 출력되는 IP 패킷들을 150Mbps 이상의 처리속도를 지원한다. 제안된 모듈들은 ALTERA사의 참조디자인을 토대로 수정 보완한 후 패킷변환 모듈을 추가한 것으로써 하드웨어 기술언어인 Verilog-HDL로 설계하였으며 모의실험을 통해 기능을 검증하였다.

• 융복합기술연구소 논문집
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• 제3권2호
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• pp.45-49
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• 2013

Instant custom embroidered souvenir manufacturing system was studied. Recently customers want to get individually specialized souvenir. We present a modular manufacturing system and implementation of image processing, conversion of punching data. The manufacturing system consist of main module, photographing module and U/I module. We can change the system easily through modularization. Image Processing was necessary for making punching data. We developed sketch typed image processing and image processing which used brightness. Brightness type is suitable for instant embroidered souvenir. This study showed that fusion of embroidery technology and image processing technology can make a new business successfully.

• 한국정보통신학회논문지
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• 제23권12호
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• pp.1673-1678
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• 2019

산업 통신에는 다양한 네트워크가 있으며 여러 가지 통신 방식을 사용한다. 기업에서는 생산 라인 확장, 공장 업그레이드, 네트워크 세분화, 시스템 통합 등을 위하여 산업용 장치와 네트워크 간에 통신 변환이 필요하다. 이것은 많은 제조회사가 제작한 설계자가 다른 다양한 기계 장치를 네트워크에 연결하고 전송하기 위하여 데이터 또는 프로토콜 변환을 위한 통신 장비가 제공되어야함을 의미한다. 본 논문에서는 적층형 통신 모듈을 사용하여 산업 통신 프로토콜 변환을 지원할 수 있는 산업용 통신 게이트웨이를 설계하였다. 제작된 게이트웨이는 RS485 시리얼 통신을 이용하는 개별 통신 모듈을 다층으로 연결하는 구조를 가지고 있다. 각각의 통신 모듈은 아날로그 데이터 카드, 디지털 데이터 카드, CAN 및 LAN 지원 카드로 구성하였다. 메인 보드 프로세서는 Atmega micro-processor를 사용하였고, RS485 시리얼 슬롯을 배치하여 적층형 통신 모듈 구조를 가지도록 하였다. 본 논문에서 제작된 적층형 산업용 통신 게이트웨이는 아날로그 및 디지털 I/O 기능과 CAN과 LAN을 지원할 수 있기 때문에 산업용 통신 제어 및 모니터링에 폭넓게 활용될 수 있다.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 1999년도 추계학술대회 논문집 - 한국공작기계학회
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• pp.269-274
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• 1999

This paper aims to DNC application of car fuel tank die working. DNC system is consist of CAD, CAM software and CNC milling machine. CAM software is purpose to G-code generation for CNC programming. Then CAM software and CNC milling machine are connect to RS-232-C cable for networking.

• 산업공학
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• 제6권1호
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• pp.31-45
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• 1993

Setup planning for machining processes is a part of fixture planning which is also a part of process planning. A setup of a part is defined as a group of features which are machined while the part is fixtured in one single fixture. Setup planning includes a number of tasks such as the selection of setup, sequence of setups and datum frame for each setup. Setup planning is an important function in fixture planning which must be able to support and to clamp a workpiece to prevent deflections caused by machining and clamping loads. This paper presents setup planning system using expert system approach(SPES) for prismatic parts which can be machined on vertical milling machine. SPES consists of preprocessing module and main processing module. Preprocessing module executes the conversion of feature data to frame type data and the determination of setups, and main processing module executes the determination of datum frame of each setup and sequance of setups. Preprocessing module is coded by C language and main processing module is a rule-based expert system using EXSYS pro. The performance of SPES is evaluated through case studies and the results show successful work except for operation sequence of machining holes. This is due to the limited rules for machining holes.

• 대한전기학회논문지:전력기술부문A
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• 제54권7호
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• pp.323-327
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• 2005

This paper presents an operator training simulator for power system restoration against massive black-out. The system is designed especially focused on the generality and convenient setting up for initial condition of simulation. The former is accomplished by using power flow calculation methodology, and PSS/E data is used to define the initial situation. The proposed simulator consists of three major components - the power flow(PF) module, data conversion(COW) module and GU subsystem. PF module calculates power flow, and then checks overvoltage of buses and overflow of lines. COW module composes an Y-Bus array and a data base at each restoration action. The initial Y-Bus array is constructed from PSS/E data. The user friendly GUI subsystem is developed including graphic editor and built-in operation manual. As a result, the maximum processing time for one step operation is 15 seconds, which is adequate for training purpose. Comparison with PSS/E simulation proves the accuracy and reliability of the training system.

• Architectural research
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• 제17권2호
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• pp.75-81
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• 2015

Insulation and condensation performance evaluation (I&CPE) is an important energy analysis. While considerable amount of data are already represented in a Building Information Model (BIM), the lack of interoperability between BIM modeling and I&CPE programs prevents the simulation process from being efficient and accurate. This study proposes a prototype of a BIM-based I&CPE simulation program, in order to enhance the interoperability between BIM modeling and I&CPE programs. This study discusses the information flow process, defines the required information and its level of detail, develops standardized libraries, and finally proposes a prototype that consists of a data extraction module, conversion module, and performance module. The assurance of interoperability between systems might greatly benefit architects and energy professionals.

• 전기학회논문지
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• 제62권5호
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• pp.717-722
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• 2013

The wastewater reclamation and reusing system has been rising as an alternative of water resource exhaustion that the whole world is experiencing. In order to be able to bring about improvement of the existing wastewater reclamation and reusing system, this research has developed of Conversion-Human Machine Interaction (C-HMI) based real-time control and monitoring system such as a sensor module and gate module, web monitoring system. This system was communication almost-error-free in various environment and situation. As a result, we have achieved our goal that has to doing work correctly as a sensor and gateway module that communication error is less than 0.2% throughout the embodied system and add that it can be easily controled and configured as an interface equipment to a complex sensor of water quality. According to this, the construction of a database capable of analyzing and assessing collection, storage and various elements of reliable water quality and flow rate data can be possible.