http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김석태,박준영,이재경,최인혁,함지완,Kim, Seok-tae,Park, Joon-young,Lee, Jae-kyung,Choi, In-hyuk,Ham, Ji-wan 한국전력공사 2017 KEPCO Journal on electric power and energy Vol.3 No.2
기존의 송전탑 좌표 측정방식은 송전탑 지상중심에서 GPS를 이용하여 좌표를 측정하고 일반적으로 측정시간은 수십 분 정도 소요되었다. 그러나 이러한 방법은 종종 거대한 철골구조물인 송전탑 간섭으로 인해 수십 미터의 좌표 오차를 발생하거나 수 시간씩 측정시간이 소요되기도 한다. 이러한 문제점을 해결하기 위해 본 논문에서는 송전탑의 새로운 GPS 측정 방법을 제안한다. 먼저, 송전탑의 중앙을 측정하던 방법 대신, 3개의 GPS로 구성된 측정장치를 이용하여 송전탑 가장자리 4 지점의 GPS 좌표를 측정하고 그 값들을 평균하여 송전탑의 중앙을 구한다. 측정된 값이 전파간섭에 의해 상당히 벗어난 경우, 새롭게 제시하는 알고리즘이 부정확한 좌표를 걸러내고 다른 가장자리 좌표로 대체하여 송전탑의 중심을 효과적으로 계산할 수 있다. 현장 측정시험을 통해 본 논문에서 제시하는 새로운 알고리즘은 전파간섭 환경에서 송전탑 측정의 효율성과 정확도를 향상시킬 수 있다. Traditionally, the GPS coordinates of a transmission tower have been measured at the center of the tower on the ground, which usually takes dozens of minutes. However, this method often produces errors of tens of meters or sometimes demands several hours due to signal interference from the huge steel structure of the tower. To solve this problem, in this paper, a new measuring method for GPS coordinates of steel towers is proposed. First, instead of measuring the center of a tower, four GPS coordinates of the edges of the tower are obtained by using a measuring device with three GPS modules, and then are averaged to find the center of the tower. When a measured value is deviated considerably by signal interference, a newly proposed algorithm filters out such an inaccurate coordinate, effectively calculating the center of the tower by using other edge coordinates. Through field tests, it was confirmed that this new algorithm could improve the task efficiency and its measuring accuracy for GPS coordinates in a GPS interference environment.
연결특성함수를 이용한 문서화상에서의 영역 분리와 문자열 추출
김석태,이대원,박찬용,남궁재찬 한국통신학회 1997 韓國通信學會論文誌 Vol.22 No.11
This paper describes a method for region segmentation and string extractionin documents which are mixed with text, graphic and picture images by the use of the structural characteristic of connceted components. In segmentation of non-text regionas, with connection-characteristic functions which are made by structural characteristic of connected components, segmentation process is progressed. In the string extraction, first we organize basic-unit-region of which vertical and horizontal length are 1/4 of average length of connection components. Second, by merging the basic-unit-regions one other that have smaller values than a given connection intensity threshold. Third, by linking the word blocks with similar block anagles, initial strings are cresed. Finally the whold strings are generated by merging remaining word blocks whose angles are not decided, if their height and prosition are similar to the initial strings. This method can extract strings that are neither horizontal nor of various character sizes. Through computer exteriments with different style documents, we have shown that the feasibility of our method successes.
Decomposition of transformation semigroups
김석태 한국지능시스템학회 2000 한국지능시스템학회논문지 Vol.10 No.2
We introduce the concepts of TL-finite state machines TL-transformation semigroups and coverings and several decompositions of transformation semigroups and investigate some their algebraic structures.
Heuristic Search기법을 이용한 전시경로 찾기 모델에 관한 연구
김석태 한국문화공간건축학회 2003 한국문화공간건축학회논문집 Vol.- No.9
It is essential to implement appropriate sign systems helping way finding and providing guidance to the visitors in a museum or an exhibit center. In particular, for the extensive exhibits where the spaces are configured in discontinuous paths, the visitors find out their own sequences to look around. However, for the irregular exhibitions or island type exhibitions such as event exhibitions, as way finding function is substantially disregarded, the path of action to look around becomes unnecessarily longer, time required to look around cannot be estimated and the path of action in exhibition halls become congested. In order to solve all these problems, it is required to properly install the guidance signs for visitors and accordingly, to provide efficient information to visitors who visit the exhibit centers. However, it requires too much time and costs to support sign systems for the event exhibitions that are frequently changed and remain for a short time. Consequently, this study suggested the sign systems using interactive navigator based on mobile system as an alternative. For the purpose of realizing this possibility, the factors in way findings were extracted and the features of each factor were examined. Moreover, the relationship between each factor was figured out and the results were used to set up basic models.