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Reference Information Batch Application Model for Improving the Efficiency of MES
박상혁,박구락,김동현,정경록,Park, Sang-Hyock,Park, Koo-Rack,Kim, Dong-Hyun,Chung, Koung-Rock Korea Convergence Society 2021 한국융합학회논문지 Vol.12 No.10
제조업 분야에서는 경쟁력 강화를 위하여 다품종 생산으로의 전환이 이루어지고 있으며, 하이브리드 제조기술이 증가하고 있다. 특히 제조실행시스템과 ERP 등의 도입을 통하여 생산 품질 향상에 많은 노력을 기울이고 있기에, 신속하고 효과적인 관리를 위한 MES 운영이 필요하다. MES는 제품 생산과 관련된 모든 단계를 관리하면서, 생산 활동에 비효율적인 부분은 개선하고, 공정 변경의 경우에 시스템에 변경 사항을 반영해야 한다. 그러나 대부분의 MES는 시스템 관리자를 통하여 수동적이고, 반복적으로 비효율적인 작업을 계속 하고 있는 상황이다. 본 논문에서는 생산과 관련된 요구사항을 시스템 관리자가 특정 라인의 장비에 대한 참조 정보를, 다른 라인의 동일한 장비에도 일괄 적용할 수 있는 모델을 제안한다. 제안 모델을 통하여 참조 정보의 일괄 적용과 선택 적용의 구분으로 생산 라인에 대한 유연한 대처가 가능할 것으로 기대된다. In the manufacturing industry, there is a transition to multi-item production for reinforcement of competitiveness. Therefore, the hybrid manufacturing technology is increasing. Especially, many efforts in production quality improvement are made through the adoption of the manufacturing execution system and ERP, so it is necessary to operate MES for prompt and effective management. MES should improve ineffective parts in production activities while managing all stages related to production of products. If there is change in the process, the changed items should be reflected to the system. However, most manufacturing execution systems are operated passively and repetitively by system administrators. This study presents a model that system administrators can comprehensively apply reference information about production related requirements on specific line's equipment to the same equipment of other lines. The flexible response for application to production lines is possible thanks to the division of blanket application and selective application of reference information through proposed model.
박상혁(Sang-hyuk Park),김종원(Jong-won Kim),조현찬(Hyun-Chan Cho),윤희현(Hee-hyun youn),전홍태(Hong-tae Jeon) 한국지능시스템학회 2004 한국지능시스템학회 학술발표 논문집 Vol.14 No.2
In this paper, we suggest machine control method by the Recognition of Literal Commands. This method that we design is human friendly interface to be able to command easy. We distinguish words that is related to command directly or not in the Literal Commands. And vague expressions to move machine directly make behaviors by intelligent recognition model. We suggest The Literal Commands control method that is able to obtain more realistic output equivalent to users' desire throgh the literary style commands. The proposed method is experimentally tested by a mobile car using bluetooth module and mobile phone in real time using Literal language commands.
표준 업무용건물 모델을 활용한 창호설계변수의 기후존별 총 에너지 소비영향 분석
박상혁(Park, Sang-Hyeok),서동현(Seo, Dong-Hyun) 한국건축친환경설비학회 2020 한국건축친환경설비학회 논문집 Vol.14 No.4
In non-residential buildings, the impact of windows on overall building energy performance is significant. However, domestic commercial and office buildings do not effectively reflect climate characteristics and various thermal and visual aspects of windows due to incomplete building code and lack of reference data for design practices. In this study, the non-residential prototype building energy model developed in 2016 is used to perform parametric simulation to present the design guides for key window design variables for each climate zone. Although the guide is not fully inclusive for all non-residential building, it is believed that at least the possibilities of this procedure will be verified. To this end, 1) the existing related research literatures were analyzed to confirm the pros and cons and the current best research results in Korea, and 2) an energy modeling overview and a parametric simulation plan were established to describe the detailed simulation procedure. 3) Through the simulation result analysis, the energy consumption change according to the window design variables was analyzed in the first step, and the energy performance additionally applicable external shade and daylight control was analyzed in the second step. 4) Finally, optimal window design variable values for each climate zone were derived. As a result, in the central and southern zones, the SC value with the minimum energy consumption was determined according to the U-factor and WWR of the window. In some cities in the southern and Jeju zones, energy performance was determined by the SC value rather than the U-factor. The external shade and daylight control system additionally enabled energy savings of up to 6%, whereas the determined design variable value was not significantly changed.
폴리에틸렌 및 강섬유를 혼입한 팽창형 SHCC로 휨 보강된 콘크리트 보의 휨 성능
양해준,이영오,박상혁,윤현도,Yang, Hae-Jun,Lee, Young-Oh,Park, Sang-Hyuk,Yun, Hyun-Do 대한건축학회 2011 대한건축학회논문집 Vol.27 No.12
This paper provides the flexural test results of concrete prisms with a layer of expansive strain hardening cement-based composite(SHCC) in the tension zone. The objective of this study is to evaluate the effect of the layer thickness(30 and 40mm), SHCC strengths(30, 70 and 100MPa) and SHCC types(conventional and expansive SHCC) on the flexural performance and cracking behavior of SHCC-layered concrete prisms. Both conventional and expansive SHCC materials were reinforced with hybrid 0.75% polyethylene(PE) and 0.75% steel fibers in volume fraction. In expansive SHCC, 10% of cement amount were replaced with calcium sulfo aluminate(CSA) expansive admixture(EXA). The concrete beams were loaded in static four-point bending using a universal testing machine with 0.75 mm/min of strain rate. Test results of SHCC materials indicate that the replacement of EXA leads to significant improvement for the compressive and flexural strength of 30 and 70MPa SHCC materials. From test results of SHCC-layered beams, It is found that concrete beams with a layer of 30 and 70MPa expansive SHCC showed higher flexural strength than concrete beams with a conventional SHCC layer.