• 로봇학회논문지
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• 제9권2호
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• pp.104-110
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• 2014

Mapping is a fundamental element for robotic services. There are available many types of map data representation such as grid map, metric map, topology map, etc. As more robots are deployed for services, more chances of exchanging map data among the robots emerge and standardization of map data representation (MDR) becomes more valuable. Currently, activities in developing MDR standard are underway in IEEE Robotics and Automation Society. The MDR standard is for a common representation and encoding of the two-dimensional map data used for navigation by mobile robots. The standard focuses on interchange of map data among components and systems, particularly those that may be supplied by different vendors. This paper aims to introduce MDR standard and its application to map merging. We have applied the basic structure of the MDR standard to a grid map and Voronoi graph as a kind of topology map and performed map merging between two different maps. Simulation results show that the proposed MDR is suitable for map data exchange among robots.

• 대한산업공학회지
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• 제4권1호
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• pp.21-27
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• 1978

For labor-intensive sewing industry, productivity could be enhanced with the proper utilization of standard time system. This paper develops a standard data for sewing operations through three stages. The first is to identify the manual motions from sewing operations. The second is to simplify the MTM-1 data considering the frequency and the nature of basic motions occuring in the operations. Finally we synthesize the standard data using the simplified MTM-1 by the film analysis of the actual operations pictured in the field. The standard data developed is shown to be easier and faster with reasonable accuracy in determining the standard time compared to the MTM-1.

• 한국토양비료학회지
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• 제46권5호
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• pp.313-321
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• 2013

The Average daily PET (Potential evapotranspiration), evaluated based on the last 30 years meteorological data and the lysimeter experiment carried out by RDA during 11 years, of 9 regions in Korea for the tomato cultivated in greenhouse, was $3.41mm\;day^{-1}$. Two kinds of water saving irrigation standard (WSIS), deficit irrigation standard (DIS) and partial root-zone drying irrigation standard (PRDIS) that include the irrigation interval and the amount of irrigation water according to the region, soil texture and growing stage, were established. According to the DIS and PRDIS, the cultivator can save water up to 29.2% and 53.7%, respectively, for tomato cultivation in greenhouse compared to the full irrigation standard (FIS) which established in 1999. WSIS can be used easily by the cultivator without complicate procedures such as soil sampling and measurement of soil water status by expensive sensors. But the cultivator should care about irrigation method such as PRDI (partial root-zone drying irrigation) without yield decrease.

• Journal of the Korean Data and Information Science Society
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• 제16권2호
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• pp.451-456
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• 2005

We introduce the standard two-sided power normal distribution and consider the relation between the probability in standard two-sided power distribution and the probability in standard two-sided power normal distribution and obtain the even moment of the special two-sided power normal distribution including the cases considered by Gupta and Nadarajah(2004)

• 한국전자거래학회지
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• 제4권2호
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• pp.161-175
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• 1999

CALS is a strategy to share integrated product data through a set of standards to achieve efficiencies in business and operational mission areas. In this paper, we studied current status for CALS standard and then analyzed the case of US DoD. The results can be summarized as implementing for two major standard in defense CALS system. They are STEP and XML. Korea Defense can be used to set direction for CALS standard implementation and standard selection process based on this paper's recommendations.

• 한국측량학회지
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• 제38권3호
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• pp.197-209
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• 2020

간판은 점포의 특성에 따라 서로 다른 유형과 크기로 건물에 설치되어있다. 하지만, 지방자치단체에서는 잦은 점포의 개업·폐업과 부족한 관리 인원으로 간판을 관리하는데 어려움을 겪고 있다. 이에 본 연구에서는 간판의 정보를 효율적으로 관리할 수 있도록 표준화하여 관리하는 방안을 제안하였다. 이를 위해, 옥외광고물 관련 시행령의 간판 표시방법을 분석하여 간판 표준 데이터의 속성 요소를 정의하였다. 또한, 선행 연구인 간판 인식 기술을 통해 간판의 물리적 정보를 얻고, 맨눈으로 판독 가능한 정보, 행정안전부의 건물통합정보, 도로명 주소를 통해 간판 표준 데이터의 속성 요소를 정의하였다. 간판 표준 데이터는 호환성을 위해 XML 형식으로 설계하였고, XML의 무결성을 위해 XSD를 정의하여 데이터의 유효성이 검증될 수 있도록 하였다. 마지막으로, 간판의 정보를 공간적 특성에 의해 표준화하기 위하여 국가 공간정보 표준에 따라 데이터 제품 사양과 메타데이터를 정의하였다. 이를 통해 간판의 정보화를 위한 표준 데이터 모델을 설계하였다.

• 한국철도학회논문집
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• 제3권3호
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• pp.139-146
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• 2000

Recently, many kinds of research have been actively developing for a standardization and information to the field of design, construction, supervision, maintenance and management on facilities. The establishment of standard classification system on tunnel facilities and inspection data is most important among the things to have a efficiently maintenance and management. This paper suggests standard classification system on tunnel facilities and inspection data, and, on the basis of that, code work with standard classification system and input work was practised. The purpose of this paper is to suggest a kind of statistics data and investigate a characteristics of inspection using statistic data on railway tunnel.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 춘계학술대회
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• pp.19-24
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• 2004

A number of creep data were collected and filed for type 316LN stainless steels through literature survey and experimental data produced in KAERI. Using these data, polynomial equations for predicting creep life were obtained for Larson Miller (L-M), Qrr-Sherby-Dorn (O-S-D) and Manson-Haferd (M-H) parametric methods. In order to find out the suitability for them, the relative standard error (RSE) and standard error of estimate (SEE) values were obtained by statistical process of creep data. The O-S-D parameter showed better fitting to creep-rupture data than the L-M or the M-H parameters, and the three parametric methods did not generate the large difference in the SEE and the RSE values.

• 산업경영시스템학회지
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• 제28권1호
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• pp.41-48
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• 2005

In this paper, we propose a systematic procedure to determine standard time and cycle time in a TFT-LCD factory. The proposed procedure mainly consists of data preprocessing, hypothesis testing and Group technology. Data preprocessing extracts relevant data from large on-line data sets by eliminating corrupt and noisy data. Hypothesis test techniques have been used to determine whether the standard information has been changed. Also, Group technology has been applied to generate standard information for newly developed products. The proposed procedure has been successfully applied to the production information system of a TFT-LCD factory in Korea.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.507-509
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• 2022

자동차 내부 진단 데이터를 수집하기 위해서는 다양한 자동차 부품에 포함되어 있는 ECU(Electronic Control Unit)의 진단데이터를 수집하여야 한다. ECU의 진단데이터를 수집하기 위해서는 진단통신을 활용할 수 있다. 본 논문에서는 표준 진단 통신을 통해 ECU의 기능에 따른 진단데이터를 수집하는 방법과 진단통신 모듈에 대해서 분석하였다. 많은 자동차 제조사가 사용하는 자동차 전장 표준인 AUTOSAR의 표준 모듈 중에서 진단 통신 모듈에 대해서 연구하였으며, 진단데이터 처리가 ECU를 통해 처리되는 과정에 대해서 연구하였다.