• 한국컴퓨터정보학회논문지
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• 제21권3호
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• pp.33-38
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• 2016

Research on the development of key technologies of social work protection and content mashup tools has been carried out as an R&D project granted by the Korea Copyright Commission from 2013. The research aims to provide efficiency of the production environment of the secondary work of the digital contents as well as a systematic solution to the regulation-related problems. The essential features of the distribution management system for cooperative works developed though this study are the decision of the selling prices reflecting various license fee factors and the transparent distribution of the license fees. This paper represents a model which can automatically calculate the amount of the license fee in each derivative stage, independently of the license fee policies on each of the subsidiary contents when N-th works are producted on the basis of a previously approved first work.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1662-1664
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• 2007

As the logistic environment of digital contents is rapidly changing, the protection of the digital rights for digital content has been recognized as one of critical issues. Digital Right Management(DRM) has taken much interest Internet Service Provider(ISP), authors and publishers of digital content as an interested approach to create a trusted environment for access and use of digital resources. This paper propose an interested digital rights protection scheme using license agent to address problems facing contemporary DRM approached : static digital rights management, and limited application to on-line environment. We introduce a dynamic mission control technology to realize dynamic digital rights management. And we incorporate license agent to on- and off-line monitoring and tracking. The proposed system prevent illegal access and use by using PKI security method, real time action monitoring for user, data security for itself.

• 방사성폐기물학회지
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• 제21권4호
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• pp.531-541
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• 2023

The Wolsong Nuclear Power Plant (NPP) operates an on-site spent fuel dry storage facility using concrete silo and vertical module systems. This facility must be safely maintained until the spent nuclear fuel (SNF) is transferred to an external interim or final disposal facility, aligning with national policies on spent nuclear fuel management. The concrete silo system, operational since 1992, requires an aging management review for its long-term operation and potential license renewal. This involves comparing aging management programs of different dry storage systems against the U.S. NRC's guidelines for license renewal of spent nuclear fuel dry storage facilities and the U.S. DOE's program for long-term storage. Based on this comparison, a specific aging management program for the silo system was developed. Furthermore, the facility's current practices-periodic checks of surface dose rate, contamination, weld integrity, leakage, surface and groundwater, cumulative dose, and concrete structure-were evaluated for their suitability in managing the silo system's aging. Based on this review, several improvements were proposed.

• 디지털콘텐츠학회 논문지
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• 제19권1호
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• pp.173-179
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• 2018

최근 차량의 증가와 주차공간의 부족으로 주차를 이용한 사업이 늘어나고 있다. 주차사업에서 주차관제가 필수적인 요소가 되고 있고, 주차관제업체가 점점 늘어나는 계기가 되었다. 그러나 업체수가 점점 늘어나고 경쟁이 치열해 짐에 따라, 새로운 서비스를 창출하거나, 기술적 우수성을 가지거나, 현재 시스템 개선을 통해서 비용을 절감하려는 노력이 이루어지고 있다. 본 논문에서는 효과적인 주차산업을 위한 클라우드 기반의 자동차번호인식(LPR) 서비스를 이용한 주차관제시스템을 구현하였다. 제안하는 시스템은 구조적인 개선을 통해 비용을 절감하고, 설치를 간소화 하며, 장애나 업데이트시 빠르게 대응 가능하다.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제7권1호
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• pp.77-86
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• 2001

전자 상거래의 발전과 더불어 인터넷을 통한 소프트웨어의 분배 및 구매가 활성화되고 있다. 전자 소프트웨어 분배(ESD: Electronic Software Distribution) 모델중 선지불(Buy-first) 방법과 후지불(Try-before-buy) 방법은 소프트웨어의 불법 복제 문제를 해결하지 못한다. 최근 연구된 전자 사용권(EL: Electronic License) 모델은 소프트웨어와 사용권을 분리하여 불법 복제 문제를 해결한다. 그러나 이 방법 역시 소프트웨어에 대하여 다양한 지불 방법을 해결하지 못하다. 따라서 본 논문에서는 새로운 형태의 ESD 모델인 소프트웨어 사용권 관리 에이전트 시스템을 제안한다. 제안된 시스템은 새로운 형식의 사용권(NL: New License)을 제안하여 사용자가 원하는 다양한 지불 방법을 해결한다. 또한 사용 내역서(SC: Software Charge)를 제안하여 사용자가 사용한 소프트웨어 값을 판매자가 받는 것을 보장한다. 제안된 시스템의 에이전트는 NL과 SC를 관리하여 불법 복제 방지 효과 및 시스템간의 확장성을 제공한다.

• 디지털산업정보학회논문지
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• 제18권4호
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• pp.1-11
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• 2022

Recently, research on license plate recognition, which is a core technology of an intelligent transportation system(ITS), is being actively conducted. In this paper, we propose a method to extract numbers and characters from low-quality license plate images by applying the YOLOv4 algorithm. YOLOv4 is a one-stage object detection method using convolution neural network including BACKBONE, NECK, and HEAD parts. It is a method of detecting objects in real time rather than the previous two-stage object detection method such as the faster R-CNN. In this paper, we studied a method to directly extract number and character regions from low-quality license plate images without additional edge detection and image segmentation processes. In order to evaluate the performance of the proposed method we experimented with 500 license plate images. In this experiment, 350 images were used for training and the remaining 150 images were used for the testing process. Computer simulations show that the mean average precision of detecting number and character regions on vehicle license plates was about 93.8%.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.172-178
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• 2007

The purpose of Railroad Vehicles License Management in accordance with the Railroad Safety Law is to improve the quality of railroad safety. And the train simulators come into use for training of train operation and testing to issue Railroad Vehicles License. So, It is very important that the simulators for the Railroad Vehicles License Test require to work correctly, to measure driver's operation quality in numerical system and to ensure the justice of license test. In fact, nobody can guarantee that the simulators are feasible performance to use in license test. The simulator for train driver license test can be used effectively for studying of needed performance and quality to test new driver's skill. This study hopefully provides the base for improving the quality of the simulator for train driver's license test and contributes furthermore to improve the simulator development technology and railroad safety.

• 인터넷정보학회논문지
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• 제8권6호
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• pp.9-19
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• 2007

DRM 시스템의 재배포 서비스는 디지털 콘텐츠의 배포를 활성화시키는 중요한 요소이다. 그러나 기존 서비스는 재배포 범위를 소비자간으로 국한시키고 있다. 최근, 소비자 요구가 증가하면서 소비자는 자신의 여러 디바이스에서 콘텐츠를 실행하고자 한다. 본 논문에서는 소비자 소유의 디바이스간 재배포 서비스를 지원하는 라이센스 관리 기법을 제안한다. 제안된 기법에서는 소비자가 소유한 디바이스들의 식별 정보를 이용하여 디바이스 인증에 사용되는 도메인 키를 생성하고 라이센스에 저장한다. 디바이스에 변경이 생기면 도메인 키와 라이센스는 갱신된다. 이를 통하여 디바이스간 콘텐츠 배포가 안전하고 효율적으로 이루어 질 수 있도록 한다. 또한 제안된 라이센스 기법은 소비자간의 재배포 서비스에도 적용될 수 있음을 보인다.

• Current Photovoltaic Research
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• 제1권2호
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• pp.126-139
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• 2013

New national certified license tests for the facility management of new and renewable energy is given from this year. There are three national certified licenses including craftsman, industrial engineer and engineer. The subjects for the craftsman are photovoltaic facility for written exam and practical business of photovoltaic facility for writing exam. The subjects for the industrial engineer are theory, construction, management and law of the photovoltaic system for written exam and practical business of photovoltaic system for writing exam. The subjects for the engineer add one more subject compared with the industrial engineer, such as design of photovoltaic system. The first tests were given in september 28 in this year. The tests will be given three in 2014.

• 디지털산업정보학회논문지
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• 제9권3호
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• pp.1-12
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• 2013

Illegal software use have been abroad through online (internet) and offline (CD, DVD, USB, etc.). It infringes intellectual property rights and weakens the will to software development. Also, it generates the software errors and virus intrusion in PC. It hinders national software industry and induces the personal and national trade friction. Many group (company, office, organization, institution, etc.) have been realized the prohibition of illegal software use. But, it is too hard to monitor and control illegal software use. In this paper, we propose a method of software management in a group. A software module of client agency is installed in all PC of the group. A main server of the software management controls the all of the PC through the communication. The server blocks the install of illegal software, permits the install / use of honest goods software, monitors the license (term, amount) in all the PC. The system prevents errors of illegal software use, all cuts the virus intrude through the illegal software, improves the performance of PC relatively.