센서네트워크 미들웨어 기술의 비교 연구

민미경 서경대학교 산업기술연구소 2013 産業技術硏究所論文集 Vol.31 No.-

Sensor Network is a distributed network composed of a large number of sensor nodes which automatically collect information of objects and environments. Middleware for sensor network has emerged as an important research area to bridge the gap between applications and low-level constructs. Due to resource constraints of wireless sensor networks, a middleware layer should contain challenging technologies. This paper finds out design criteria and various technologies of sensor network middlewares. Also this paper presents a comparative study of several existing middlewares and how they deploy these technologies. In doing so, some characteristics and limitations of present sensor network middlewares are pointed out.

무선인식기술을 활용한 정품성 인증 시스템의 설계

안해일 서경대학교 산업기술연구소 2004 産業技術硏究所論文集 Vol.15 No.-

Recently, governmental organizations and companies are developing and testing automatic identification technologies using RFID(radio frequency identification), which can provide great benefits in a wide range of businesses. As a company wide infrastructure, RFID ubiquitous sensor network has the potential to track materials, artifacts, goods and assets across the value chain. This paper suggests that governmental organizations or companies, who are willing to invest their time and money to use this timelier, more accurate information to collaborate and achieve new levels of efficiency and responsiveness, can even provide their customers with the information on the genuineness of their products.

다단계 생산공정에 대한 생산기술가격시스템

안웅 서경대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.9 No.-

In this paper we introduce a technology price system for the multi-stage manufacturing process. Also, we show that a technology price system is the fundamental principle to operate the efficient production system.

AHP방법을 이용한 정보기술 등급평가 연구

정진우,김재향 서경대학교 산업기술연구소 2002 産業技術硏究所論文集 Vol.12 No.-

The aim of this study is to evaluate technology`s commercial viability and to obtain the assessment of commercial opportunity of 20 promising technologies. The method of Analytic Hierarchy Process(AHP) is used for the weight allocation of technology`s commercial viability criteria. A survey was conducted with venture capitalists, business managers, and public policy makers in the information technology sector. The weight allocation of technology`s commercial viability criteria is derived from reciprocal paired comparisons. Then overall priority for the commercial viability of 20 technologies is derived by rating 20 alternatives one at a time on a 7 point likert-scale constructed separately for each criterion. In conclusion, we apply a systematic approach to technology`s commercial viability assessment using AHP. Furthermore, an application is used to identify the most commercially viable technology via the Priority Index. This study may be of help for companies and the government to identify technologies with commercial potential and it can assist in assessing the commercial potential of various technologies.

정보 기술(IT) 환경에서 컴퓨터 Software의 구축 및 활용에 관한 연구

김해정 서경대학교 산업기술연구소 2002 産業技術硏究所論文集 Vol.12 No.-

A computer-based information system (CBIS) is a combination of hardware, software, database, telecommunications, people, and procedures. All these should be organized to input, process, and output data and inforamation. Today, software costs is a large percentage of total information costs. Software can represent 75 percent or more of the total cost of information system, because of several reasons: advances in hardware technology have reduced hardware costs, increasingly complex software requires more time and cost to develop, and salaries for software developers have increased because the demand for these workers far exceeds the supply. In this paper, we focus on the software component of a CBIS. Software consists of system and application software. Computer system software should be selected and organized to effectively and efficiently attain computer system objectives, which should support the objectives of the information system and the goals of the organization.

ASIC 용 마이크로콘트롤러 CORE 칩 설계 및 제작

이광엽 서경대학교 산업기술연구소 1996 産業技術硏究所論文集 Vol.1 No.-

마이크로 큰트롤러를 내장하는 ASIC(Application Specific Integrated Circuits)을 구현하기 위한 fully standard cell based 매크로 core칩을 설계한다. 마이크로 콘트롤러 core의 명령어 디코더 및 제어부와 데이터 패스부를 모두 표준 셀 라이브러리를 이용하여 설계하였기 때문에 ASIC의 매크로셀로 사용될 때 hard macro와는 달리 soft macro로써 설계 유연성이 높고 주변회로와 라이브러리 및 칩제작 공정의 일관성을 이률 수 있어서 ASIC의 설계 노력 및 시간을 크게 단축 시킬 수 있다.설계된 마이크로 콘트롤러 core는 111개의 명령어와 8비트,16비트 데이터를 처리할 수 있고 128by1e 내부메모리를 내장하여 고기능의 8비트 마이크로 콘트롤러를 구현할 수 있다.Core 아키텍쳐는 주변회로의 확장이 용이 하도록 SFR(Special Function Resister)과 SFR BUS구조를 사용하였고 명령어 prefetch를 통하여 처리속도를 개선하였다. 설계방법은 Verilog HDL을 사용한 TOP-DOWN방식으로behavioral 및 structural level에서 HDL을 기술하고 설계검증 및 칩제작을 수행하였다. 설계된 칩은 현대의 0.8um COMS HSG30000 gate array 라이브러리를 사용하여 16,000게이트를 내장하며 100QFP패키지로 제작되었다. 본 core칩은 25MHZ 처리속도에서 인텔8051 마이크로큰트롤러용 프로그램이 수행됨을 검증하였다.

최적생산기술(Optimized Production Technology)의 분석

이상복 서경대학교 산업기술연구소 1997 産業技術硏究所論文集 Vol.2 No.-

In this article, we survey of OPT(optimized production technology). OPT is developed since 1980 at U.S, as new Production management. It is suggested by remedy technology of imperfection of MRP(manufacturing resource planning). In this article we give similar and difference of MRP, JIT(just in time) and OPT and detail operation flow of OPT. Simply we render new developed concept of OPT after 1990.

TMN 운용 관리 시스템의 경제성 분석을 위한 평가 지표의 구축에 관한 연구

김재현 서경대학교 산업기술연구소 1996 産業技術硏究所論文集 Vol.1 No.-

정보화 사회의 발달로 인해 각국의 통신 운용체가 보유하고 있는 기간 및 정보통신망의 운용과 구성환경에 커다란 변화가 있어왔다. 통신망이 고도화, 지능화됨에 따라 사용자들은 보다 나은 다양한 서비스를 요구하게 되었으며, 이러한 요구에 부응하기 위해 교환방식, 데이타 전송방식, 신호처리방식등 여러측면에서 통신망과 통신기술이 급속하게 진화되어 가고 있다. 또한, 통신망을 운용관리하는 방식도 수동, 개별관리에서 집중화, 자동화된 관리체제로의 전환은 물론, 단위시설(교환, 전송, 가입자/선로등)별 관리개념을 지나 서비스 및 사업관리 개념으로 확장 발전되어 가고 있다. 통신기술의 발전과 함째 고도화, 지능화 되어가는 통신망 운용환경에 능동적으로 대처하고, 이질적(heterogeneous)이고 복잡하게 구성된 통신망 구성요소들을 효을적으로 관리하기 위해서는 표준화된 개방형 형식의 총체적이고 일원화된 통신망 운영관리 기법이 요구된다. 국제표준화기구인 ITU-T에서는 이를 위해 TMN (Telecommunication Management Network) 개념을 국제표준으로 권고하고 있으며, 세계 각국의 통신운용체(PNOs:Public Network Operators)에서는 이 개념을 통신망 운용관리의 하부 기반구조로 도입하고 있는 상황이다. 본 연구에서는 향후 운용관리 시스템의 경제성을 분석하고 평가할 때, 이러한 TMN 개념을 포함하도록 유도하는 평가 지표를 구축하여 보았다.

외식산업의 물류효율화 방안에 관한 연구 -A社의 사례를 중심으로-

이희영,고현우 서경대학교 산업기술연구소 2007 産業技術硏究所論文集 Vol.19 No.-

This study is written about an operating scheme to make logistics on the restaurant industry efficient. A past process in Korean restaurant industry was so complex and out of date that it took too much lead-time to deal with order-to-delivery and difficult to keep up freshness of foods because of the frequent exposure to the normal temperature. Moreover it took much cost from complexity total process. To improve those things first of all I searched developed cases of similar companies outside and tried to find the present state of the food service industry including the company "A". Based on the data we drew up 3 plans. Going through the list all we was carrying out Infra modeling, center process modeling, information system modeling. The results of plans are same with next. We can expect the effect making dates of inventory lower throughout expanding Cross-docking system , cutting delivery cost and saving lead time throughout the infra modeling, taking efficiency of operation throughout the process modeling, increasing the customer satisfaction throughout the operation system modeling, enlarging the economy of scale and having the flexibility of stock throughout a way adding the function to C.K.

다기능 복합기 재제조산업의 순환형 공급사슬 도입

안해일 서경대학교 산업기술연구소 2010 産業技術硏究所論文集 Vol.24 No.-

For the last two decades, remanufacturing has drawn attention for its expected economic and environmental benefits and becomes a matter of strategic importance not only for manufacturers, but also for nations, as can be seen in such advanced countries as the US and some other European countries. In light of the experiences of those countries, it is highly recommended that Korean manufacturing companies as well as the government take into consideration the remanufacturing of their products, with a view to making contribution to global society by reducing the carbon-foot-prints of their products. This paper shows that the implications of remanufacturing the laser multi-function peripherals(MFPs) can provide with a good start in discussing and implementing the concept of remanufacturing a variety of different industrial products.