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한국형 달 탐사 프로그램을 위한 LRO 비행 소프트웨어 사례 분석
김창균,권재욱,문상만,김인규,민승용,Kim, Changkyoon,Kwon, Jae-Wook,Moon, Sang-Man,Kim, In-Kyu,Min, Seung Yong 항공우주시스템공학회 2015 항공우주시스템공학회지 Vol.9 No.4
For Korean first lunar exploration program, KARI(Korea Aerospace Research Institute) has been researching in various fields and investigating cases of abroad lunar exploration spacecrafts. In the field of the flight software, KARI has been analysing some cases such as NASA LRO, and this paper describes the result of the case study on LRO flight software.
고령자를 고려한 내비게이션의 인간공학적 설계에 관한 연구
김창균(Changkyoon Kim),최재호(Jaeho Choe),임영재(Youngjae Im),정의승(Eui S. Jung) 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.5
Today, the number of elderly drivers who use navigation is increasing with the growing number of elderly drivers. The purpose of this study is to provide guidelines on the interface of car navigation for elderly users. To extract significant factors which were distinguished between young and elderly users, both young and elderly users executed the driving test by installing two car navigation alternatives. The analysis was conducted through t-test. The results show that significantly different factors were the number and the meaning of the menu items in the initial screen, the location and the meaning of the menu icons in the map screen, the ease of search of the menu and the text size in the menu screen. Improvements for the factors of the initial screen and map screen were made with reference to ergonomic guidelines, and suggested through experiments comparing design alternatives for the menu screen. Design alternatives were made through a combination of investigative variables, and the analysis was conducted through ANOVA. The results show that Alternative 7 (the location of the tab was placed at the bottom, menu representation was done with the text font size of 18pt and the location of menu navigation icons was shown at the upper left) was preferred in terms of user's preference and the execution time. So if the suggested menu for elderly users are added to the existing design, both users will satisfy their desires. The guidelines suggested in this study will help the designer of car navigation take elderly users into consideration.
심우주통신용 파일데이터 프로토콜 시험/분석 지원 장비개발
김창균(Changkyoon Kim),권재욱(Jae-Wook Kwon),구철회(Cheol-Hea Koo),송영재(Young-jae Song),장석래(Seok Rae Jang) 한국항공우주연구원 2014 항공우주기술 Vol.13 No.2
본 논문은 신뢰성 높은 심우주통신을 위해 명령 및 데이터를 파일의 형태로 송/수신하는 프로토콜인 CFDP(CCSDS File Delivery Protocol)의 개발을 지원하기 위한 시험 및 분석 장비에 대한 소개이다. 본 논문에서는 기본적인 CFDP 설명과 CFDP-TASS(CFDP - Test Analysis & Support Set)의 개발 목적 및 기능을 소개하였다. CFDP-TASS는 OBC(On-Board Computer)와 연동하여 정상적인 상황에서의 시험뿐만 아니라 사용자가 의도적으로 오류를 생성하여 CFDP 시험 및 검증하는 기능을 보유하고 있으며, 결과 분석을 용이하게 하기 위해 시험 시 발생하는 모든 데이터를 보관/관리하고, 다양한 형태로 시험 데이터를 표시하는 기능을 보유하고 있다. This paper cites about a test & analysis support set to support a testing and analysis of CFDP(CCSDS File Delivery Protocol) that processes commands and data as a series of file for reliable deep space communication. And this paper includes a basic description of CFDP and an objective and functions of CFDP-TASS(CFDP ? Test Analysis & Support Set). CFDP-TASS is an equipment to examine OBC(On-Board Computer) CFDP in normal and abnormal cases, gather all packets in test, and support to analyze effectively the result of tests.