• KIPS Transactions on Computer and Communication Systems
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• v.5 no.7
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• pp.159-172
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• 2016

This paper presents a novel algorithm for searching evacuation paths in indoor disaster environments. The proposed method significantly improves the time complexity to find the paths to the evacuation exit by introducing a light-weight Disaster Evacuation Graph (DEG) for a building in terms of the size of the graph. With the DEG, the method also considers load balancing and bottleneck capacity of the paths to the evacuation exit simultaneously. The behavior of the algorithm consists of two phases: horizontal tiering (HT) and vertical tiering (VT). The HT phase finds a possible optimal path from anywhere of a specific floor to the evacuation stairs of the floor. Thus, after finishing the HT phases of all floors in parallel the VT phase begins to integrate all results from the previous HT phases to determine a evacuation path from anywhere of a floor to the safety zone of the building that could be the entrance or the roof of the building. It should be noted that the path produced by the algorithm. And, in order to define the range of graph to process, tiering scheme is used. In order to test the performance of the method, computing times and evacuation times are compared to the existing path searching algorithms. The result shows the proposed method is better than the existing algorithms in terms of the computing time and evacuation time. It is useful in a large-scale building to find the evacuation routes for evacuees quickly.

• Journal of Technology Innovation
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• v.25 no.4
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• pp.263-284
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• 2017

The purpose of this research is to analyze the performance of national R&D projects and to find out measures to improve the performance indicators, focusing on energy HRD projects. The main analysis target is 86 energy manpower projects supported since 2010. The performance indicators of the energy HRD projects are related to the research capacity, the number of emission workers, industry-university linkage, job creation and so on, and analyzed by using the 11 indicators of human resource performance index called KPI index. As a result of analyzing the attainment level of the proposed target by task, the index with the highest achievement level is the corporation linkage rate, and the index with the lowest achievement level is the participating company employment. As a result of examining the effects of job creation in company - linked activities, it was found that the greater the number of participating companies in the business, the greater the employment creation effect of the number of internships. As a result of the above analysis, the following policy alternatives are proposed. First, it is necessary to consider adding indicators that can express the quality performance of the business and performance indicators that can express actual business linkages. Second, it is necessary to strengthen the management of differentiated performance indicators according to policy performance targets and major target groups. Third, it is necessary to improve information input and accumulation system along with improvement of performance index.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.227-236
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• 2021

The purpose of this study is to promote the efficient operation of the Home visit nursing care services by identifying the perception and experience of visiting nurses at the community center. To this end, a methodological triangle study method was applied to visiting nurses. As a result of analysis the delivery system of the home visit nursing care services, the perception and participation experience of nurses, it was found that it is necessary to supplement the program standards such as the number of visiting target, health assesment, and information system for the efficiency of the visit. It is suggested that policy alternatives should be developed by sharing the major issues raised in this study.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.582-585
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• 2017

본 논문에서는 구글 드라이브, 드롭박스 등 여러 회사에서 제공하고 있는 클라우드들을 하나의 플랫폼으로 통합하여 체계적이고 효율적으로 관리할 수 있는 시스템을 제안한다. 또한 해당 시스템을 통한 파일 업로드 및 다운로드를 진행할 경우, 파일을 여러 개의 패킷으로 분할하여 등록 된 클라우드에 각각 저장함으로써, 사용자의 데이터를 안전하게 보호할 수 있는 환경을 구축하고자 한다. 이를 위해 활용된 오픈 API와 독자적으로 구축한 파일 시스템에 대해 설명하고, 실제 구현한 소프트웨어가 정상적으로 작동하는지 실험을 통해 검증하고자 한다. 최근 클라우드 보안 문제가 대두되는 시점에서 제안한 시스템이 향후 데이터를 보호하기 위한 기술로 활용될 수 있기를 기대한다.

• KIPS Transactions on Software and Data Engineering
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• v.5 no.7
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• pp.339-344
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• 2016

With increasing complexity of automotive software it has become important issue in the automotive safety. So, Automotive SPICE process have been proposed to solve this problem. The integrated management system and tools are needed for perform the Automotive SPICE process. It is difficult to adopt an integrated management system and tools because small business are lack of human resource and tools. Therefore, HIS scope items comply with Automotive SPICE minimum requirement should be targeted for the small business. In this paper, an open-source system based on process management tool required to perform the Automotive HIS scope items is proposed. The proposed system can perform the Automotive SPICE HIS scope items are carried and it showed that satisfy the Automotive SPICE HIS scope items.

• Journal of the Korea Convergence Society
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• v.9 no.7
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• pp.55-62
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• 2018

Recently, as the threat of cyber crime increases, the importance of security control to cope with cyber attacks on the information systems in the first place such as real-time detection is increasing. In the name of security control center, cyber terror response center and infringement response center, institutional control personnel are making efforts to prevent cyber attacks. Especially, we are detecting infringement accident by using network security equipment or utilizing control system, but it's not enough to prevent infringement accident by just controlling based on device-driven simple patterns. Therefore, the security control system is continuously being upgraded, and the development and research on the detection method are being actively carried out by the prevention activity against the threat of infringement. In this paper, we have defined the method of detecting infringement of major component module in order to improve the problem of existing infringement detection method. Through the performance tests for each module, we propose measures for effective security control and study effective infringement threat detection method by upgrading the control system using Security Information Event Management (SIEM).

• Proceedings of the KSR Conference
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• 2007.05a
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• pp.1344-1368
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• 2007

The Advanced countries including Japan, USA and European countries are adopting automatic system(e.g., auto-measurement using CCD camera) for measuring pantograph sliding plate and wheel abrasion to minimize manpower for E.M.U(Electric Multiple Unit) inspection and maintenance as part of management rationalization of railroad Corporation since late 1980's. In Korea, as part of scheme of business rationalization, automatic system for measuring pantograph sliding plate and wheel abrasion started to draw industry attention since late 1990s, and the system started to be installed in newly built depots of Korea Railroad Corporation since 2002. This study hopefully provides the base for realizing business rationalization and applying the advanced technology developed by Korea, the country of powerful IT basis, to overseas railroad organizations by examining automatic system for measuring pantograph sliding plate abrasion using existing CCD cameras produced domestically and in foreign countries to study cases(organizations in Korea) for improvement of measurement, management and inspection of pantograph sliding plate abrasion using CCD cameras with new cutting-edge technology; and by applying the study result to railroad organizations in metropolitan areas in Korea.

• The monthly packaging world
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• s.261
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• pp.48-65
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• 2015

(사)한국포장협회는 지난 해 7월 1일부터 총 86개 회원사를 대상으로 "회원사 실태조사 사업"을 추진함으로써 업계의 매출 규모를 비롯해, 재직 인원, 연구개발 및 품질 관리 실태, 그리고 내수 및 대외 수출 활동 현황, 경쟁력 여부 등을 중심으로 조사한 결과 "2014년도 (사)한국포장협회 회원사 실태조사 결과"를 발표했다. 결과 자료는 54개사 회원사들의 설문조사 결과와 32개사의 워크넷 기업정보 및 전자공시시스템 내용을 바탕으로 작성됐으며, 협회는 조사 결과를 바탕으로 2015년부터 추진하는 회원사 상황별 수출 지원을 위한 기초자료로 적극 반영하는 동시에 국내외에 협회 회원사 홍보자료로 적극 활용함은 물론, 대정부 패키징 산업 지원정책(국고 활용)을 유도하기 위한 자료 및 관련 단체와의 협력관계 구축을 위한 정보교류용 등 다방면으로 활용할 계획이다. 협회의 회원사 실태조사는 향후 매 2년 마다 업데이트 될 예정이다. 본 고에서는 실태조사 주요 내용을 살펴보도록 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.349-352
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• 2005

네트워크 프린터 방식은 가정 및 사무환경 내부의 각종 출력 장치를 하나의 통신망으로 통합하여 사용할 수 있는 프린터 솔루션을 제공한다. 네트워크 프린터 환경은 사용 인원 증가로 인한 각종 장애 요인 발생으로 실시간 오류 검지 서비스의 필요성이 요구 되었다. 본 논문에서는 네트워크 프린터 환경의 장애 발생 시에 대한 문제점을 빠르고 정확하게 판단할 수 있도록 오류검지 시스템을 설계 및 구현하였다. 이를 위해 Winsock을 통해 API 설정을 하였고, Packet 분석을 통해 장애를 발생 시켰던 Client PC의 IP를 참조하여 문제를 해결함으로서 네트워크 프린터 솔루션의 효율적인 관리를 할 수 있다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.6
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• pp.163-170
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• 2023

With the introduction of the law regarding severe penalties for major accidents, employers, management executives, and corporations have significantly increased the number of safety managers and invested extensively in acquiring ISO certifications to prevent accidents in industrial sites. Moreover, the implementation of the Smart Safety Management System (SSMS) has facilitated the management of personnel and safety equipment. While IoT-based management systems have been applied to safety gear such as helmets, safety harnesses, and protective clothing, the responsibility for safety shoes still primarily lies with on-site managers and individuals, leaving a vulnerability to accidents. In this study, we aim to implement a Raspberry Pi-based sensor device to proactively detect workers' safety shoe usage upon entering the site. The goal is to confirm the usage of safety shoes and prevent accidents that may occur due to non-compliance with safety shoes regulations.