새마을금고의 최종사용자 특성과 조직 특성별 회계정보시스템 성과에 관한 연구

손성호,문성병 한국산업경제학회 2008 산업경제연구 Vol.21 No.3

회계정보시스템의 구축에는 많은 비용과 시간이 투자 되므로 회계정보시스템이 효율적으로 사용되고 있는가에 대한 평가가 필요하다. 여러 가지 요소 중 정보시스템의 성과는 시스템 설계와 개발 및 평가에서 가장 중요한 요소로 생각되어 왔으며 회계정보시스템의 성과에 관한 연구는 많지 않으나 최근 활발하게 연구가 이루어지고 있다. 본 연구는 새마을금고의 최종사용자 특성(직무, 직위)과 조직특성(형태, 규모)별 회계정보시스템의 성과(회계정보시스템 만족도, 회계정보시스템 이용도, 관리프로그램 만족도)에 대해 실증 연구를 함으로써 새마을금고 회계정보시스템의 개발 방향을 제시하고, 평가 자료를 제공하여 경영성과 증진에 기여하고자 한다. 본 연구는 성과 측정방법 중에서 가장 보편적으로 이용되는 정보시스템의 사용자 만족도와 이용도를 측정하여 새마을금고의 최종사용자 특성과 조직 특성별로 회계정보시스템의 성과를 평가한다. 그리고 관리프로그램 만족도를 회계정보시스템의 성과에 포함하여 최종사용자 특성과 조직 특성별 관리프로그램 만족도 또한 측정하고 분석한다. 새마을금고의 최종사용자 특성과 조직 특성별 회계정보시스템의 성과에 대한 분석결과는 다음과 같다. 첫째, 최종사용자 특성과 조직 특성별 회계정보시스템의 성과는 회계정보시스템 이용도를 제외하고는 유의한 차이가 없는 것으로 나타났다. 즉 최종사용자 특성 중 직위와 회계정보시스템 이용도가 5% 수준에서 통계적으로 유의한 차이를 보였다. 둘째, 최종사용자 특성과 조직 특성은 회계정보시스템 성과와는 상관관계가 없는 것으로 나타났다. 셋째, 회계정보시스템 만족도, 회계정보시스템 이용도, 관리프로그램 만족도의 세 가지 회계정보시스템 성과 간에는 높은 상관관계를 보이고 있다. 이러한 결과는 새마을금고가 최종사용자의 특성과 조직의 특성에 따른 프로그램을 별도로 만들 필요성이 없는 것으로 판단할 수 있으나, 관리프로그램의 질을 높여 회계정보시스템 이용도를 향상시키려는 노력이 새마을금고의 회계정보시스템 성과 중 회계정보시스템 만족도를 높이는 방법이라고 생각할 수 있다. It is necessary to evaluate accounting information systems is used efficiently, as much expense and time is invested in construction of accounting information systems. The performance of information systems in various element is thought with the important element most from system design, development and evaluation. The research on accounting information systems is not many, but in recent, it is become accomplished actively. Through the empirical study which investigates accounting information systems performance(accounting information systems satisfaction and accounting information systems availability and management program satisfaction) by end-user characteristics (duty form and position) and organization characteristics(business form and size) of the KFCCC(Korean Federation of Community Credit Cooperative), the research presents the development direction of accounting information systems and contributes the management performance increase. The research evaluates the performance of accounting information systems by end-user and organization characteristics of the KFCCC with the end-user satisfaction and availability of the information systems used widely in performance measurement. Including management program satisfaction in performance of accounting information systems, the research measures and analyzes management program satisfaction by end-user and organization characteristics of KFCCC. The analytical result with afterwards is same about performance of end-user and organization characteristics by the accounting information systems of the KFCCC. First, the performance of the accounting information systems excluding the accounting information systems availability by end-user and organization characteristics is not statistically significant. With duty position in end-user characteristics and the accounting information systems availability was visible in the difference which considers statistically from 5% level. Second, the end-user and organization characteristics appeared not to be interrelated to accounting information systems performance. Third, three accounting information systems performance with accounting information systems satisfaction, accounting information systems availability and management program satisfaction shows a high interrelation. Like this result will be able to judge with the fact that does not have the necessity which will develop the program which the KFCCC follows in end-user and organization characteristics with separate way. But the effort of improving the accounting information systems availability by increasing management program quality is one way which raises the accounting information systems satisfaction among accounting information systems performance in KFCCC.

미국의 지역 기반 관계금융시스템

김은경 ( Eun Kyung Kim ) 한국질서경제학회 2018 질서경제저널 Vol.21 No.1

Since the mid-1990s, the importance of the regional economy has grown because of the decentralization. The decentralized countries such as Germany and Japan, have developed the region-based financial systems. The regional financial system has a close relationship with the regional economic activation and regional policy. However, despite the various regional policies, the Korean government was not interested in the financial system that could support regional development. A region-based financial system is important to promote local economic development based on decentralization and local autonomy, and to promote autonomous and independent regional policies. In addition, regional policies based on fiscal expenditures are difficult to sustain regional economic growth due to limitations of tax revenue. Therefore, a region-based financial system should be established to strengthen regional autonomy and sustain long-term economic development. It is important to support SMEs, self-employed persons, and vulnerable groups and to realize social responsibility in the region. In order to build region-based relationship banking in Korea, it is necessary to establish a differentiated regional financial system, and to form a system of division of role between national wide finance and regional finance. In particular, regional balanced development and continuous development of the regional economy require differentiated regional financial systems that are tailored to the local characteristics. In a liberalized and globalized financial market environment, region-based financial institutions can contribute to the financing of local vulnerable groups and to eliminate the economic polarization. The purpose of this study is to analyze the case of the United States and to derive the policy direction of Korea in order to build a region-based relationship banking system that supports the continuous development of regional and local economy and social integration. This study suggests the following policy directions. First, it is necessary to establish a region-based relationship banking centered on cooperatives such as credit unions, MG community credit cooperatives, Mutual Banking etc.. In addition, the financial supervision system centered on the central government should be reorganized in line with the expansion of decentralization, so that the supervisory authority over the cooperative financial institution, which has a strong character of regional financial institutions, will be transferred from the central government to regional or local governments. Second, a policy that takes into account the specificity of local financial institutions is necessary to establish region-based relationship banking. It is important to expand the guarantees of the central government or local governments, if necessary, for local financial institutions to develop and activate local financial products for SMEs, small businesses and vulnerable groups. In addition, local financial institutions can enjoy favorable interest rates for local-based enterprises and stable loans to local residents with autonomy to develop and operate products flexibly according to the characteristics of the local economy. Third, the division of role and cooperation between regional branches of the national wide financial institutions and regional financial institutions should be established. It is also necessary for the national wide banks to organize their functions and roles so that their savings banks can become a regional financial institution in order to contribute to the formation of region-based relationship banking. Fourth, to build region-based relationship banking, local financial institutions should enhance their ability to provide consulting services. In order to strengthen region-based relationship banking, non-financial support such as business or management consultation is required. Fifth, it is necessary to rationalize the central government’s regulation on the local financial system. The central government should create a system for protecting and nurturing regional finance like the United States, in order to revitalize regional economy based on regional characteristics and promote balanced regional development. Sixth, the regional financial institutions need to innovate themselves and reform their activities.

겐트시스템이 우리나라 자영업자 고용보험에 주는 시사점

오민홍 ( Min Hong Oh ),정남기 ( Namki Chung ) 한국질서경제학회 2020 질서경제저널 Vol.23 No.3

This study analyzed social safety nets for the self-employed in the Nordic countries of Denmark and Sweden. These countries operate voluntarybased unemployment insurance for the self-employed as well as unemployment assistance at the same time. The unemployment insurance system for the self-employed is developed and operated by the Union and thus there exist various types of unemployment insurance funds across the trade unions. Although the system is operated by the unions, it is controlled by the government regulation. The unemployment insurance operated by the unions is called ‘Ghent system.’ The unemployment benefits under Ghent system is mostly financed by the government budget which collected through the payroll taxes. Since the payroll taxes is collected from income, the unemployment insurance systems in the Nordic contries are designed as a measure of income redistribution. The tax rate is about 5-8%. Under the circumstances, the system has been characterized as lower insurance premium, generous eligibility criteria, and relatively higher participation rates. Like wage workers, the income of the self-employed is based on the amount of income reported to the tax office. The unemployment insurance systems in Denmark and Sweden are very favorable to the self-employed in the sense that the massive financial input financed from the government. On top of this generous insurance systems, these Nordic countries operates insurance assistance system as well. Thus the self-employed who end up the payment period of insurance benefits or who do not even participated in the system could be supported by the unemployment assistance system. Compared with these Nordic countries, the self-employed in Korea where most of them is not covered by the unemployment insurance and without unemployment assistance system is in blind spots when they go out of business. This paper suggests several policy implications to eliminate the blind spots.

융합적 혁신가 빌 게이츠 : 기술시스템의 관점에서

남영(Nam Young) 한양대학교 수행인문학연구소 2011 수행인문학 Vol.41 No.2

This research examines the roles and characteristics of Bill Gates within the modern IT technological system using Thomas Hughes's point of view on technological system. For this purpose, the history of Bill Gates and Microsoft have been classified into three periods to analyze the characteristlcs of Bill Gatcs from the technological syscem point of view. Through this process, we can understand how Bill Gates has led the world of technological systems in the revolutionary IT era when numerous start-up comparues were collapsing, and we can summarize some characteristic roles that Bill Gates had played in that era. Bill Gates' life can be classified into three periods, Which are; the 1980's- when he could continue to grow relatively easily in the shadow of IBM after launching MS-DOS; the 1990's- when he had dominated the world of technologial systems after launching Windw: and the 2000 's-when he had transformed himself into a philanthropist as he had handed over his power after the lawsuit for breach of antitrust laws. Summing up the analysis results of each period, Bill Gates can be seen as a system builder who had worked over the course of growth, competition and consolidation of technological systems. This implies that he was at the top of his game not when the IT technological system were in the early stage of development but when a huge-scale technological system was being developed after the development of the technical system had been completed to a certain degree. Gates started to build the technological system after the technical system of the PC-based IT technological system had been almost completed. Also, Bill Gates's success story clearly shows why it is so difficult to complete a technological system by one innovator who has an engineer identity. The ultimate technological systems have been completed by the people who had focused on the extension of technologies. When it comes to individual technologies, it may seem like there is not much that Bill Gates has accomplished. However, in fact, he had developed a technological system which was able to process details. Bills Gates's successful revolution can be explained as a typical example of the Joan of Arc Syndrome because of the features of a new technology. Gates was lucky enough to be in the leading position during a new era like other many innovators. Bill Gates himself has enormous significance to the history of modern IT technology and which of America. Looking over Bill Gates from the technological system point of view, he can provide a new vision for the modern technology.

세무대리인 회계정보시스템의 특성변수가 회계정보시스템 성과에 미치는 영향

오효경(Hyo-Kyoung Oh),고대영(Dae-Young Ko) 한국산업경제학회 2018 산업경제연구 Vol.31 No.5

본 연구는 국내 세무대리 분야의 회계정보시스템 활용 실태와 회계정보시스템 특성변수인 시스템특성, 이용자특성, 업무특성변수가 회계정보시스템 성과변수로 선정된 이용자 가치와 의사결정효율성에 미치는 영향을 검증하였다. 본 연구를 통해 나타난 연구결과를 요약하면 다음과 같다. 첫째, 세무대리 분야의 회계정보시스템 시스템특성 중 시스템 활용정도만이 이용자 가치와 의사결정 유용성에 대하여 유의한 정(+)의 영향을 미치는 것으로 나타났다. 따라서 세무대리 업무에서 활용하고 있는 회계정보시스템의 시스템 활용정도가 높을수록 이용자 가치와 의사결정 효율성이 향상되어짐을 알 수 있다. 둘째, 세무대리 분야의 회계정보시스템 이용자 특성 중 이용자의 시스템 활용능력이 이용자 가치와 의사결정 유용성에 대하여 유의한 정(+)의 영향을 미치는 것으로 나타났으며, 이용자의 교육정도는 이용자 가치에는 유의한 정(+)의 영향을 미치지만, 의사결정 효율성에는 같은 결과를 보여주지 못하고 있다. 이는 이용자의 시스템 활용능력이 높을수록 이용자 가치와 의사결정 효율성이 향상되어짐을 의미한다. 셋째, 세무대리 분야의 회계정보시스템 업무 특성 중 업무의 구조화가 이용자 가치와 의사결정 유용성에 대하여 유의한 정(+)의 영향을 미치는 것으로 나타났다. 또한 업무의 다양성은 이용자 가치에는 유의한 정(+)의 영향을 미치지만, 의사결정 효율성에는 유의한 영향을 미치지 못하였다. 이는 세무대리업무에서 구조화된 업무를 할수록 이용자 가치와 의사결정 효율성이 높게 나타남을 알 수 있는 결과이다. This study attempts to analyze the practicability of the application of accounting information system to the field of Tax Information Service. Specifically, this study verifies the effects of accounting information system characteristic variables on the performance of accounting information system such as user values and decision making usefulness, The results of the study are as follows. First, the study finds that among accounting information system characteristic, system use is positively influence performance of accounting information system. Second, the accounting information system user"s utilization ability increase user values and decision making usefulness. The user"s participation of system variable are negatively influence the performance of accounting information system. Third, the structuration of accounting information system job characteristic variables significantly affected the user values and decision making usefulness.

직류기반 가변속 발전 시스템을 이용한 에너지 절감에 관한 연구

박기도,노길태,김경화,문창재,김종수 해양환경안전학회 2023 해양환경안전학회지 Vol.29 No.6

As international environmental regulations on ship emissions are gradually strengthened, interest in electric propulsion and hybrid propulsion ships is increasing, and various solutions are being developed and applied to these ships, especially stabilization of the power system and system efficiency. The direct current distribution system is being applied as a way to increase the power. In addition, verification and testing of safety and performance of marine DC distribution systems is required. As a result of establishing a DC distribution test bed, verifying the performance of the DC distribution (variable speed power generation) system, and analyzing fuel consumption, this study applied a variable speed power generation system that is applied to DC power distribution for ships, and converted the power output from the generator into a rectifier. A system was developed to convert direct current power to connect to the system and monitor and control these devices. Through tests using this DC distribution system, the maximum voltage was 751.5V and the minimum voltage was 731.4V, and the voltage fluctuation rate was 2.7%, confirming that the voltage is stably supplied within 3%, and a variable speed power generation system was installed according to load fluctuations. When applied, it was confirmed through testing that fuel consumption could be reduced by more than 20% depending on the section compared to the existing constant speed power generation system. 국제적인 선박 배출 가스에 대한 환경 규제가 점차 강화됨에 따라 전기추진 및 하이브리드 추진선박에 대한 관심이 증대되고 있으며, 이러한 선박에 적용하기 위한 다양한 솔루션이 개발 및 적용되고 있는데 특히 전력계통의 안정화, 시스템의 효율성을 높이기 위한 방안으로 직류배전시스템이 적용되고 있다. 또한, 선박용 직류배전시스템에 대한 안전 및 성능에 대한 검증 및 시험의 중요성이 요구되고 있다. 본 연구는 직류배전 테스트베드 구축 및 직류배전(가변속 발전)시스템에 대한 성능을 검증하고 연료소모량 분석한 결과로서 선박용 직류배전에 적용되고 있는 가변속 발전시스템을 적용하였으며, 발전기에서 출력되는 전력을 정류기를 통해 직류전력으로 변환하여 시스템에 연계하고 이러한 장치들을 감시 및 제어하기 위한 시스템을 개발하였다. 이러한 직류배전 시스템을 적용한 시험을 통해 최대 전압은 751.5V이고 최소전압은 731.4V가 계측되어 전압변동률은 2.7%로 3% 이내에서 안정적으로 전압이 공급되는 것을 확인하였고 부하변동에 따라 가변속 발전시스템을 적용하였을 경우 연료소모량이 기존 정속발전시스템과 비교하여 구간에 따라 최대 20%이상 연료절감이 되는 것을 시험을 통해 확인하였다.

에이전트기반 개방병원 간호기록시스템 설계에 관한 연구

김경환(Kim Kyoung-Hwan) 한국지능정보시스템학회 2010 지능정보연구 Vol.16 No.2

The attending system is a medical system that allows doctors in clinics to use the extra equipment in hospitals-beds, laboratory, operating room, etc-for their patient’s care under a contract between the doctors and hospitals. Therefore, the system is very beneficial in terms of the efficiency of the usage of medical resources. However, it is necessary to develop a strong support system to strengthen its weaknesses and supplement its merits. If doctors use hospital beds under the attending system of hospitals, they would be able to check a patient’s condition often and provide them with nursing care services. However, the current attending system lacks delivery and assistance support. Thus, for the successful performance of the attending system, a networking system should be developed to facilitate communication between the doctors and nurses. In particular, the nursing records in the attending system could help doctors monitor the patient’s condition and provision of nursing care services. A nursing record is the formal documentation associated with nursing care. It is merely a data repository that helps nurses to track their activities; nursing records thus represent a resource of primary information that can be reused. In order to maximize their usefulness, nursing records have been introduced as part of computerized patient records. However, nursing records are internal data that are not disclosed by hospitals. Moreover, the lack of standardization of the record list makes it difficult to share nursing records. Under the attending system, nurses would want to minimize the amount of effort they have to put in for the maintenance of additional records. Hence, they would try to maintain the current level of nursing records in the form of record lists and record attributes, while doctors would require more detailed and real-time information about their patients in order to monitor their condition. Therefore, this study developed a system for assisting in the maintenance and sharing of the nursing records under the attending system. In contrast to previous research on the functionality of computer-based nursing records, we have emphasized the practical usefulness of nursing records from the viewpoint of the actual imp lementation of the attending system. We suggested that nurses could design a nursing record dictionary for their convenience, and that doctors and nurses could confirm the definitions that they looked up in the dictionary through negotiations with intelligent agents. Such an agent-based system could facilitate networking among medical institutes. Multi-agent systems are a widely accepted paradigm for the distribution and sharing of computation workloads in the scientific community. Agent-based systems have been developed with differences in functional cooperation, coordination, and negotiation. To increase such communication, a framework for a multi-agent based system is proposed in this study. The agent-based approach is useful for developing a system that promotes trade-offs between transactions involving multiple attributes. A brief summary of our contributions follows. First, we propose an efficient and accurate utility representation and acquisition mechanism based on a preference scale while minimizing user interactions with the agent. Trade-offs between various transaction attributes can also be easily computed. Second, by providing a multi-attribute negotiation framework based on the attribute utility evaluation mechanism, we allow both the doctors in charge and nurses to negotiate over various transaction attributes in the nursing record lists that are defined by the latter. Third, we have designed the architecture of the nursing record management server and a system of agents that provides support to the doctors and nurses with regard to the framework and mechanisms proposed above. A formal protocol has also been developed to create and control the communication required for

연구논문 : 통제제도와 조직성과간의 관계에서 조직학습의 역할

이상완 ( Sang Wan Lee ),신성호 ( Sung Ho Shin ),김순기 ( Soon Kee Kim ) 한국회계학회 2012 회계저널 Vol.21 No.5

최근의 기업환경은 정보기술의 발전과 시장의 글로벌화에 따라 급격하게 변화하고 있다. 이런환경 하에서 기업들이 경쟁력을 갖추고 장기적으로 성장하기 위해서는 MCS를 정교하게 구축하고 활용해야 할 것이다. MCS는 다양한 통제시스템으로 구성되어 있다(Otley 1980). 과거 선행연구들은 대부분 진단적 통제를 중심으로 연구되었으며, 최근에는 진단적 통제와 함께 상호작용적 통제의 중요성이 강조되고 있다. 그러나 선행연구들에는 신념시스템과 경계시스템에 대한 고려를 거의 찾아 볼 수 없다. MCS의 이용과 조직성과에 미치는 영향에 관한 실증연구들의 결과를 종합해 보면 일관된 결론을 내리기가 쉽지 않다. 대부분의 선행연구들은 성과측정지표의 이용과같은 하나의 통제시스템에 초점을 두어 연구를 진행해왔으며, 진단적 통제와 상호작용적 통제의 측정 방법에도 차이가 존재하였다. 또한 MCS의 특징에 따라 이에 적합한 조직학습의 유형이 달라 질 수 있는데 대부분의 선행연구들은 단일고리학습과 이중고리학습과 같은 상이한 조직학습에 대한 고려가 부족하였다. 본 연구의 목적은 제조기업을 대상으로 통제제도(신념시스템, 경계시스템, 진단적 통제, 상호작용적 통제)의 선행변수로 환경불확실성을 고려하고 통제제도의 후행변수로 조직학습(단일고리학습, 이중고리학습)과 조직성과를 고려하여 이들간의 관계에 대해 보다 나은 이해를 제공하는 데 있다. 이를 위해 2010년 매출액을 기준으로 국내 300대 제조기업을 대상으로 설문조사를 통해 자료를 수집하여 분석을 수행하였다. 이 연구의 결과 및 시사점을 요약하면 다음과 같다. 첫째, 기업은 환경불확실성을 극복하기 위해 조직의 가치, 목적 그리고 조직이 나아가야 할 방향 등을 조직구성원들에게 제공해주는 신념시스템을 강조하는 것으로 나타났다. 둘째, 경영자들은 환경불확실성 하에서 조직성과를 개선시키기 위해 하나의 통제시스템만으로는 한계가 있을 것이며, 신념시스템, 경계시스템, 진단적 통제, 그리고 상호작용적 통제의 보완적 관계를 고려하여 더 정교하게 사용해야 한다. 경계시스템, 진단적 통제, 그리고 상호작용적 통제는 신념시스템을 보완하며, 궁극적으로 조직성과를 개선시키는 것으로 나타났다. 셋째, 조직구성원들의 행동을 제약하는 부정적인 방법인 경계시스템과 진단적 통제의 강조 보다는 동기부여와 의사소통을 촉진하는 긍정적인방법인 신념시스템과 상호작용적 통제의 강조가 조직학습을 더 강화시키는 것으로 나타났다. 따라서 기업은 불확실한 경영환경 속에서 조직성과를 개선시키기 위해 단일고리학습보다 이중고리학습을 강화시켜야 한다. 즉 경영자들은 MCS의 구축목적을 달성하기 위해 이중고리학습의 활용을 보다 적극적으로 고려해야 할 것이다. 마지막으로 신념시스템과 상호작용적 통제는 이중고리 학습을 강화시키고, 이중고리학습은 조직성과를 개선시키고 있음을 보여주었다. Recent business environment is undergoing rapid changes due to the advancement of the information technology and the globalization of market. In such business environment, many business enterprises need to build and utilize complicated management control systems(MCS) in order to improve competitiveness and ensure long-term growth. MCS is a compound system consisting of variety of control systems(Otley 1980). However, there has been almost no studies that also considered beliefs system and boundary system. Review of empirical studies on the use of MCS and its effect on organizational performance do not allow to easily draw one consistent general conclusion. Many past studies were conducted with special focus on only one control such as the use of performance measures and employed different measures of the construct such as diagnostic controls and interactive controls. Additionally organizational learning could be further classified into single loop learning and double loop learning and appropriate type of organizational learning may differ depending on the characteristics of MCS. The purpose of this study is to consider environmental uncertainties such as the antecedent variable of MCS(beliefs system, boundary system, diagnostic controls and interactive controls), organizational learning(single loop learning and double loop learning) and organizational performance as consequence variables of MCS and to present better understanding of their relationships using manufacturing companies as subjects. A survey was conducted using a questionnaire on 300 manufacturing companies in Korea selected based on annual sales for the year 2010 and collected data were analyzed. The results and suggestions of the study can be summarized as follows: First, the results showed that, in order to overcome the uncertainties of the business environment, emphasis must be made on beliefs system for communication on the values, purpose and future direction of organization to the members of organization and for motivation of the members of organization for exploration, creation, and commission. Second, there is a limitation of implementing MCS alone to improve organizational performance under the uncertainties of environment and use of complicated system would be necessary taking into account the complementary relation between beliefs system, boundary system, diagnostic controls and interactive controls. The results suggested that boundary system, diagnostic controls and interactive controls can complement beliefs system and can eventually lead to the improvement of organizational performance. Third, the results showed that emphasis on beliefs system and interactive controls, which are positive methods that facilitate motivation and communication, can improve organizational learning more effectively than the emphasis on boundary system and diagnostic controls, which are negative methods that restrict the activities of the members of the organization. Companies would need to promote double loop learning instead of single loop learning if it is to improve organizational performance in environmental uncertainties. The results also showed that boundary system and interactive controls improve double loop learning and double loop learning, in turn, improves organizational performance.

나로우주센터 추적/발사통제시스템의 통합운용 성능분석

최용태,나성웅 한국항공우주학회 2011 한국항공우주학회 학술발표회 논문집 Vol.2011 No.11

레인지시스템(추적시스템 및 발사통제시스템)은 우주 발사체를 지상에서 추적하여 위치 및 상태정보를 취득, 처리한다. 나로우주센터의 레인지시스템은 추적레이더, 원격자료수신장비, 광학추적장비 및 발사통제시스템으로 구성되어 발사체의 지상 추적임무를 수행한다. 나로호 발사임무에서 추적장비에서 취득된 각종 정보는 발사통제시스템의 처리를 거쳐서 관련운용자에 공급되어진다. 또한, 처리된 발사체의 위치 정보는 각 추적 장비들의 추적 실패 시 재추적 시도를 위한 연동 자료로 공급됨과 동시에 비행안전 감시의 목적으로 사용되어진다. 또한, 레인지시스템은 카운트다운 제어, 음성/데이터통신, 기상정보 제공등의 역할을 수행한다. 본 논문에서는 레인지시스템 구성요소들의 통합운용개념과 이에 따른 성능분석결과를 기술하였다. Tracking and Mission Control System, i.e. Range System, m launch site is to provide target tracking and range instrumentation capabilities of launch vehicle. In NARO space center, range system consists of tracking means such as tracking radars, ground telemetry systems, electro-optical system and mission control system. In KSLV-I launch, real-time data from the tracking means are acquired, processed and distributed by the mission control system to the user group who need to monitor processed data for safety and flight monitoring purposes. The processed trajectory data by the mission control system is sent to each tracking mean for target designation in case of tracking failure. Especially, the processed data are used for decision making for flight termination when anomalies occur during flight of the launch vehicle. Range system also provide function of countdown control, voice and data communication and meteorology information. In this paper, operation concept of tracking and mission control system in NARO space center is described and test results of KSLV-I launch are analyzed and discussed.

감항인증 시스템 안전 절차에 관한 연구

배기형,이광석,최준형 한국지식정보기술학회 2021 한국지식정보기술학회 논문지 Vol.16 No.6

In that the operating environment of the aircraft is in the air, aircraft failure can cause enormous human and material damage and requires a very high level of safety compared to other means of transportation or systems. In order to operate an aircraft, it must obtain the airworthiness certification specified in the law, and through this, the flight safety of the aircraft must be approved. In this paper, system safety was studied based on military aircraft airworthiness certification. Military aircraft airworthiness certification, system safety, and system safety procedures were summarized, and various civil and military system safety standards and guidelines were examined. As standards and guidelines related to system safety procedures, we looked at MIL-STD-882E, SAE ARP4754A, SAE ARP4761, 14 CFR, and DoDI 5000.02 and studied the correlation. For example, when the aircraft is partially modified, the system safety task was analyzed and examples of matters to be addressed in the system safety program plan were presented. Individual system safety tasks were analyzed based on MIL-STD-882E, a system safety standard applied to the airworthiness certification of military aircraft, and were divided into applied and non-applied items. Establishing a system safety program plan is very important at the stage where a general design of system configuration is made, and an example of the matters to be covered in the system safety program plan is presented based on MIL-STD-882E.