• 제목/요약/키워드: on-board autonomy

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AT697F/VxWorks 플랫폼에서 Lua 가상머신 기반의 OBCP 엔진 설계 및 구현 (Design and Implementation of OBCP Engine based on Lua VM for AT697F/VxWorks Platform)

  • 최종욱;박수현
    • 한국위성정보통신학회논문지
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    • 제12권3호
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    • pp.108-113
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    • 2017
  • 일반적으로 Operator on Board로 불리는 OBCP (On-Board Control Procedure)는 기존 탑재소프트웨어를 변경하지 않으면서 동적으로 지상 또는 온보드에서 명령과 로직이 포함된 특정 프로시저를 로딩, 언로딩 및 실행 할 수 있으며, OBCP를 통해 기존 위성의 제한된 자율성 및 강인성을 증대 시킬 수 있다. 탑재소프트웨어의 OBCP의 핵심은 OBCP 엔진이며, OBCP 엔진은 스크립트 기반의 프로시저를 해석 및 실행 할 수 있는 인터프리터 형태로 구현되어 있으며 내부적으로 가상머신을 가지고 있다. 탑재소프트웨어팀에서는 2010년부터 내부적으로 OBCP에 대해서 계속 연구를 수행하였으며 ERC32 프로세서 기반의 Java KVM, RTCS/C 및 KKOMA와 같은 자체 OBCP 엔진을 개발하였다. 최근에는 ESA OBCP 표준에 대한 연구를 계속 진행하고 있으며 LEON2-FT/AT697F 프로세서 기반에서 Lua와 MicroPython을 이용한 OBCP 엔진 연구를 진행하고 있다. 본 논문에서는 현재 가장 활발히 사용되고 있는 오픈소스 기반의 Lua를 탑재소프트웨어의 OBCP 엔진으로 사용하기 위하여 VxWorks 기반의 AT697F 프로세서에서의 설계 및 구현 방법에 대해서 기술하며, 시뮬레이터와 실제 하드웨어의 테스트 결과와 함께 성능 비교 분석을 수행한다.

AN EXPERIMENTAL STUDY ON THE ESTABLISHMENT OF PRODUCT VALIDATION SITE AND THE RELATED ACTIVITIES

  • Lee Kwangjae;Kim Younsoo;Kim Yongseung;Hoersch Bianca
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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    • pp.426-429
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    • 2005
  • In order to evaluate KOrea Multi-Purpose SATellite (KOMPSAT) application products and develop the multi-sensor data application technologies, the Product Validation Site (PVS) will be designed and constructed by Korea Aerospace Research Institute (KARI). Also KARl has a plan for acquisition of multi-sensor data such as ENVISAT ASAR and Project for On Board Autonomy (PROBA) Compact High Resolution Imaging Spectrometer (CHRIS) data through international cooperation with European Space Agency (ESA). These data will be utilized with KOMPSAT-2 Multi-Spectral Camera (MSC) data. KARI and ESA have identified a mutual interest in creating synergy in the joint exploitation of Earth Observation data for science and applications both in Korea and Europe. This paper summarizes the status of joint experimental studies between KARI and ESA for further applications and presents some expected results from related activities.

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A Study on the Improvement of Local Education Autonomy System

  • Park, Jong-Ryeol;Noe, Sang-Ouk
    • 한국컴퓨터정보학회논문지
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    • 제26권2호
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    • pp.141-150
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    • 2021
  • 「헌법」제117조 제1항에서 "지방자치단체는 법령의 범위 안에서 자치에 관한 규정을 제정할 수 있다"고 밝히고 있다는 문제로 실효성 있는 자치법규를 제정하는 데 한계가 있어,. 근본적인 문제해결은 헌법 개정을 통한 자치입법권을 확보하는 것이다. 따라서 "지방자치단체는 보충성의 원칙에 따라 주민 복리에 관한 사무 등을 처리하며 법률에 저촉되지 아니하는 범위 안에서 자치에 관한 규정을 제정할 수 있다"로 개정을 해야 하는 것이다. 헌법에 위배되는 현행의 교육의원 문제는 장기적인 관점에서는 합헌인 독립적인 교육위원회 제도로 부활하여 의결기관과 집행기관이 짝으로 이루어져야 하고, 자격요건은 10년의 교육행정 경력이 있어야 한다. 현행 교육감직선제는 민주적 정당성 확립의 의미가 있지만, 제도 시행이 짧은 상황에서 나타나는 부작용이 커서 교육감직선제에 대한 폐지 주장에서 나오는 지방자치단체장의 임명제, 러닝메이트제, 공동등록제 등은 헌법에 위배되어 또 다시 제도개선을 하기 보다는 부작용을 보완하는 방안이 필요하다고 생각된다.

Roles of Authentic Leadership, Psychological Empowerment and Intrinsic Motivation on Workers' Creativity in e-business

  • 함상우
    • 인터넷정보학회논문지
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    • 제19권1호
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    • pp.113-122
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    • 2018
  • In today's rapidly changing environment, companies need to have proper strategies in place to meet the challenges that constant change presents. Being flexible, responding and adapting to changes can be valuable. However, they are essentially passive ways of dealing with situations. Creating new values and innovation are more active and effective strategies fora constantly changing environment. As such, most companies in e-business should focus on developing creativity across the board. Employees' creativity has become a critical factor in e-business. This paper explains how to increase workers' creativity through authentic leadership and psychological empowerment. As it is not machines or computers, but people, that are ultimately still responsible for creating novel outcomes, this study emphasizes the overriding importance of members' ability and leader's roles, which greatly influence followers' levels of motivation. Authentic leadership encourages members to reach and display their potential, and enhances their intrinsic motivation. Moreover, members' psychological empowerment is directly associated with both intrinsic motivation and autonomy, preconditions for creativity. Hence, these two dimensions- leadership and an individual's psychological state- will increase workers' creativity, which works to increase performance and create more opportunities not only at the individual level, but also at the team or organization level. The purpose of this paper is to explain the effects of authentic leadership on creativity and the moderating effects of psychological empowerment between authentic leadership and creativity in the e-business environment.

비영리 재단의 유형과 활성화 방안 (A Study on the pattern and activating method of non-profit corporation)

  • 이재호
    • 경영과정보연구
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    • 제22권
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    • pp.61-84
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    • 2007
  • This research aims to find the legal classification of non-profit corporation, to check the pattern of non-profit corporation, to examine thoroughly the present condition of non-profit corporation, and to make a good solution of the problems of non-profit corporation. The findings of this study about the present condition of non-profit corporation are as follows. First, there is an unclear understanding of non-profit corporation and an public fund, Second, a board of directors and a founder control an aim of non-profit corporation freely, Third, there is an unclear management of activity and accounts of non-profit corporation, forth, there is an vague mission of foundation, fifth, some of non-profit corporation supported social welfare project for marketing strategy. and the last non-profit corporation made an competition unnecessarily. On the basis of study result, the researcher make some suggestion for an revitalizing of non-profit corporation. First, it is very important of making a clear mission to manage the non-profit corporation. Second, there is an autonomy and neutrality of non-profit corporation. Third, we make an irrational law better, forth, we make a settled the donation culture. and the last it is necessary of make an foundation for international society.

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디지털 미디어 환경에서의 공영방송 지배구조에 대한 국내 연구동향 분석: 2000년 이후를 중심으로 (Analysis of Research Trends on Public Broadcasting Governance: Focusing on Korean Studies since 2000)

  • 홍원식;김창숙
    • 정보화정책
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    • 제29권4호
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    • pp.3-25
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    • 2022
  • 공영방송의 지배구조는 국내 미디어 정책과 관련한 가장 뜨거운 논쟁거리이다. 본 연구는 디지털 환경으로 전환되는 시점인 지난 2000년 통합방송법 이후 국내 공영방송 지배구조에 대한 연구 문헌을 종합하여 그동안 국내에서 진행되어온 논의의 흐름을 시기별로 나누어 살펴보았다. 그 결과, 공영방송의 지배구조에 대한 논의가 활발하게 나타난 것은 2008년 이후 이명박 정부와 박근혜 정부로 이어지는 보수정부의 시기 이후의 현상이며, 이는 '공영방송의 위기론'에서 비롯된 것임을 확인하였다. 이후 연구에서, 공영방송 지배구조에 대한 논의는 공영방송의 공적가치와 제도 개선의 방향성을 중심으로 진행되었으며, 이 속에서 공영방송의 정치적 독립성과 이사회 구성, 그리고 사장 선출 제도에 대한 논의가 가장 많이 다뤄졌음을 확인하였다. 본 연구는 향후 공영방송 지배구조에 대한 논의는 기존 정치적 독립성 논의를 확장하여 시민의 참여를 전제하는 공영방송의 가치와 책무, 그리고 제도를 포괄하는 논의가 되어야 한다고 제언하였다.

간호교육에서의 전문직 간 교육에 대한 현황과 발전방향 (Current Status and Future Direction of Interprofessional Education in Nursing Education)

  • 김건희;황은희;신수진
    • 의학교육논단
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    • 제19권1호
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    • pp.18-24
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    • 2017
  • This study examined the perception and readiness of nursing educators regarding interprofessional education (IPE), and discussed the validity and application of IPE in nursing. From December 2016 to January 2017, 239 nursing professors and nurses completed a structured questionnaire consisting of general characteristics, the Interdisciplinary Education Perception Scale, the Readiness for Interprofessional Learning Survey (RIPLS), and an IPE action plan. The collected data were analyzed by descriptive statistics and t-test using the IBM SPSS ver. 23.0 program (IBM Corp., Armonk, NY, USA). The analysis revealed that 91.6% of the participants had not experienced IPE, and only 11.7% knew about IPE. However, approximately 80.0% answered that IPE is necessary. The results of this study showed that the score of the perceived need for cooperation was higher in nurses than it was in professors, while the score on competency and autonomy was higher in professors than it was in nurses. With reference to the scores on the RIPLS, those of professors were high on the sub-scales of teamwork and collaboration, professional identity, and roles and responsibility. The results revealed that participants considered the upper-grade undergraduate years as the ideal time for imparting IPE, and it was deemed suitable to include communication, simulation, and clinical practice in IPE. Doctors, pharmacists, and physiotherapists were thought to require cooperation for IPE the most. Despite the presence of several barriers to IPE, the participants thought that IPE can achieve learning outcomes such as interprofessional communication and cooperation, conflict resolution, and teamwork. It is necessary to cooperate with professionals in the complex clinical environment as professional areas are specialized and subdivided. Therefore, it is necessary to examine the application of IPE in undergraduate education and in on-the-job training.

Simulator of Underwater Navigation

  • Waz, Mariusz
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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    • pp.333-335
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    • 2006
  • Position of surface objects can be fixed in many ways. The most popular radionavigational systems, including satellite systems, make possible obtaining nearly continuous and very precise ship's position. However, under the water application of radionavigational systems is impossible. Underwater navigation requires other tools and solutions then these encountered in surface and air navigation. In underwater environment vehicles and submarines, operate that have to possess alternative navigational systems. Underwater vehicles, in order to perform their tasks require accurate information about their own, current position. At present, they are equipped with inertial navigational systems (INS). Accuracy of INS is very high but in relatively short periods. Position error is directly proportional to time of working of the system. The basic feature of INS is its autonomy and passivity. This characteristic mainly decides that INS is broadly used on submarines and other underwater vehicles. However, due to previously mentioned shortcoming i.e. gradually increasing position error, periodical calibration of the system is necessary. The simplest calibration method is surface or nearly surface application of GPS system. Another solution, which does not require interruption of performed task and emergence on the surface, is application of comparative navigation technique. Information about surrounding environment of the ship, obtained e.g. by means sonic depth finder or board sonar, and comparing it with accessible pattern can be used in order to fix ship's position. The article presents a structure and a description of working of underwater vehicle navigation system simulator. The simulator works on the basis of comparative navigation methods which exploit in turn digital images of echograms and sonograms. The additional option of the simulator is ability to robust estimation of measurements. One can do it in order to increase accuracy of position fixed with comparative navigation methods application. The simulator can be a basis to build future underwater navigation system.

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중국 투자기업의 중국 국내중재기구 이용 가능성에 관한 연구 (A Study on the Availability of Chinese Internal Arbitration Institution by the Company invested from Korea)

  • 윤진기
    • 한국중재학회지:중재연구
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    • 제24권4호
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    • pp.49-97
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    • 2014
  • This study is about the availability of Chinese internal arbitration institutions by Korean invested companies. Generally, Chinese internal arbitration institutions lack independence from government. However, because parties seeking an arbitration award have ways to get neutrality from internal arbitration institutions that guarantee party autonomy, these Korean companies can use Chinese internal arbitration institutions to resolve disputes in China. Special attention should be given to the following. First, because Korean companies invested in China are legally in the same position as Chinese companies, unless foreign-related factors intervene, when disputes occur with Chinese companies or individuals, the disputes correspond to internal dispute, and when it comes to choosing the arbitration institution, these Korean companies must choose either a Chinese internal arbitration institution or foreign-related arbitration institution. Second, most Chinese internal arbitration institutions still lack independence from government, which can influence the fairness of arbitration in the future. Therefore, Korean companies invested in China should think about alternative ways to get a minimum impartiality in arbitration cases. Third, the parties are allowed to choose arbitration rules freely in Beijing, Xian, Chongqing, Guangzhou, and Hangzhou arbitration commissions. Therefore, in arbitration cases, the parties can get impartiality by choosing arbitrators according to the arbitration rules which they agree on, or by choosing partially modified arbitration rules of those arbitration commissions. Fourth, in order to get an impartial arbitration award from Chinese internal arbitration institutions in China, it is important for Korean lawyers or arbitration experts -- fluent in Chinese -- to be registered in the List of Arbitrators of Chinese internal arbitration institution by way of signing a MOU between the Korean Commercial Arbitration Board, or the Korean Association of Arbitration Studies and arbitration commissions such as those of Beijing, Xian, Chongqing, Guangzhou, and Hangzhou which comparatively do guarantee party autonomy. Fifth, because application of the preservation of property before application of arbitration is not approved in China, in practice, in order to preserve property before application of arbitration, it is best to file another suit in China based on other legal issue (e.g., tort) independent from the contract which an arbitration agreement is applied to. Sixth, in arbitration commissions which allow different agreement regarding arbitration procedures or arbitration rules, it is possible to choose a neutral arbitrator from a third country as a presiding arbitrator via UNCITRAL arbitration rules or ICC arbitration rules. Seventh, in the case of Chinese internal arbitral award, because the court reviews the substantive matters to decide the refusal of compulsory execution, the execution rate could be relatively lower than that of foreign-related cases. Therefore, when Korean companies invested in China use Chinese internal arbitration institution, they should endure low rate of execution. Eighth, considering the operational experiences of public policy on foreign-related arbitration awards so far, in cases of Chinese internal arbitration award, the possibility of cancellation of arbitral award or the possibility to refuse to execute the award due to public policy is thought to be higher than that of foreign arbitral awards. Ninth, even though a treaty on judicial assistance in civil and commercial matters has been signed between Korea and China, and it includes a provision on acknowledgement and enforcement of arbitral award, when trying to resolve disputes through Chinese internal arbitration institution, the treaty would not be a big help to resolve the disputes, because the disputes between Korean companies invested in China and the party in China are not subject to the treaty. Tenth, considering recent tendency of conciliation by the arbitral tribunal in China and the voluntary execution rate of the parties, the system of conciliation by the arbitral tribunal is expected to affect as a positive factor the Korean companies that use Chinese internal arbitration institution. Finally, when using online arbitration, arbitration fees can be reduced, and if the arbitration commissions guaranteeing party autonomy have online arbitration system, the possibility of getting impartial arbitration award through them is higher. Therefore, the use of online arbitration system is recommended.

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지방자치 활성화를 위한 자치경찰제 도입 방안에 관한 연구 - 제주자치경찰제 사례를 중심으로 - (A Study on Introduce Measures for Local Government Activation Local & Municipal Police - Focus on Jeju Local & Municipal Police Case -)

  • 유상용
    • 시큐리티연구
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    • 제41호
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    • pp.327-356
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    • 2014
  • 지방자치의 궁극적인 목적은 지역사회의 주인인 주민의 복리증진이다. 주민의 복리증진은 주민의 생명과 재산의 보호로부터 시작된다. 이러한 보호활동의 대부분은 경찰의 기능이다. 따라서 주민의 복리증진을 위해서는 지역의 자율성을 바탕으로 하는 자치경찰이 개념적으로 전제가 되어야 한다. 지역사회에 뿌리를 두고 지역사회를 위하여 활동하는 자치경찰활동은 경찰과 지역사회를 재결합시켜주는 것이며, 지역의 문제해결을 중심으로 이루어지는 자치경찰활동은 범죄와 무질서, 범죄에 대한 두려움을 감소시킬 뿐만 아니라 지역주민을 동반자로 인식하며 지역사회의 전반적인 삶의 질을 개선시키기 위한 지역주민 자체의 노력의 표현이다. 자치경찰이 전면적으로 도입될 경우 정부와 지방자치단체에서는 그동안 준비해 온 여러가지 대안들을 면밀히 검토 분석하여 최적의 대안을 마련하여 시행착오를 줄이는 것이 무엇보다 중요하다. 최우선적으로는 자치경찰을 도입하려는 이유가 무엇인지 정확하게 파악해야 한다. 즉, 자치경찰의 도입은 중앙정부와 지방정부, 국가경찰과 자치경찰, 여당과 야당, 광역자치단체와 기초자치단체 간의 보이지 않는 주도권 다툼이 아니라 지방자치시대를 맞아 진정으로 지역주민들의 '안전'과 '삶의 질 향상'에 있음을 직시해야 한다.

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