• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.443-444
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• 2019

본 논문에서는 라즈베리파이(Raspberry Pi)와 실시간 객체 감지 기술인 YOLO를 이용한 전기차충전기앞불법주차 경고 영상인식 시스템을 제안한다. 최근 전기 자동차의 사용과 더불어 충전 인프라는 점점 늘어나는 중이지만, 여전히 전기차 충전기는 많지 않은 것이 현실이다. 전국 1,000여 곳이 넘는 전기차 충전소에 대해 법령으로 인한 규제를 시행 중임에도 불구하고 불법주차를 하는 일반차 오너들은 여전히 많다. 이로 인해 전기차 오너들은 충전에 많은 불편함이 있다. 이 시스템은 전기 자동차의 번호판을 인식하여 실시간 객체 감지 딥러닝 기법인 YOLO를 이용해 전기 자동차의 번호판에 특정 부분을 인식하고 특정 부분이 없는 일반 자동차가 전기차 충전기 앞 불법 주차를 하게 되면 부저와 LED경고를 통해 주차된 일반 차량에게 경고를 하여, 불법 주차자와 더불어 주변을 지나가는 행인들에게도 전기차 앞 불법 주차에 대해 각인을 시켜줄 수 있는 시스템이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.781-784
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• 2009

IPTV, which is convergence of Communication and Broadcasting, has improved quickly recently. This service can provide high quality and various services to their customers, such as choosing channels freely, VOD and many kinds of Interactive service. As the technology of IPTV rapid development, more and more people worry about its disadvantages during the spread and apply, for instance, the illegal application, illegal copy, access authority abuse and the danger of the IPTV contents. This paper will provide the solution to solve these problems, through the Public Key Certificate of PKI(Public Key Infrastructure) and the Attribute Certificate of PMI(Privilege Management Infrastructure).

• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.6A
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• pp.185-190
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• 2008

The devices for the digital home in ubiquitous environment aim at providing multimedia services which are not limited to the time and space. However, it does not ensure the fair use of digital contents and causes damage to the contents providers because of indiscriminate distribution of digital contents and the use of illegal contents. DRM system for solving this problems cannot protect the license stored on digital home devices and manage license by redistribution of contents. In this paper, digital forensic model that enables the misuse detection and previous interception of large-scale illegal distribution for contents and license, and also enables the creation and management of digital evidence for legal countermeasure.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.12 no.4
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• pp.87-98
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• 2002

Software has been developed very fast as information has become important value. Illegal software copy has been the main problem of developing software business. Recently used protecting lock system for software copy has not guaranteed perfectly from easily cracked-defense system. This paper, therefore, proposes 96-bit block cipher with 112-bit length to replace a DES(Data Encryption Standard) algorithm. Security chip by ASIC(Application Specific Integrated Circuit) security module is presented for software copy protection. Then, an auto block protecting algorithm is designed for the security chip. Finally, controlling driver and library are built for the security chip.

• Journal of the Korean Society of Safety
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• v.36 no.1
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• pp.26-35
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• 2021

Governmental bodies generally conduct investigations for product safety management once new products are released to the market, in order to prevent distribution of illegal and defective items. Further, market surveillance activities are regularly conducted by the government to ensure distribution of safe products and recall any hazardous products. The safety investigations often involve a consumer monitoring system wherein consumer organizations participate in market monitoring to conduct surveys on illegal and defective products. As a result, the monitoring results of individual consumer organizations are available separately, but an integrated analysis of the data from all consumer organizations cannot be performed, thereby deterring comprehensive evaluation of the consumer monitoring system. In this study, we analyze the individual monitoring results of consumer organizations to understand the overall status and performance of comprehensive market monitoring and present the directions for desirable market surveillance policies. To this end, the effectiveness of market surveillance related to the distribution of products is verified through analysis of the interrelationships between the monitoring processes and performances of consumer organizations as well as their impact on the performances of the monitoring implementation processes; moreover, several improvement points and direction points are presented for more desirable monitoring of the consumer markets.

• Journal of Integrative Natural Science
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• v.15 no.1
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• pp.27-36
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• 2022

Metabus, currently represented by Second Life on the Internet, is the next-generation 3DCG Internet world in which the 2D Internet world has evolved, and has grown as a new ICT culture of mankind that can replace real society with virtual society. As such, the reason why the world of metabus has rapidly expanded is that the era of 3D Internet has arrived due to the evolution of the Internet, which only used information, and the spread of 5G communication in user-participating WEB. However, there are many situations in which laws do not exist in this virtual world and various illegal acts occur. As the Internet culture developed earlier, illegal activities by users began to appear, and as the legal responsibility of Internet providers was discussed, mankind quickly passed the Millennium Copyright Act or introduced new copyright protection measures such as technical protection, transmission rights, and rights management information. Therefore, this paper reviews and studies how to accept and further grow this new metabus culture, including the viewpoint of intellectual property.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.175-177
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• 2021

The parking area for the disabled is a parking facility for the pedestrian disabled and is a parking space for securing pedestrian safety passage for the disabled. However, due to the lack of social awareness of areas for the disabled, the use of parking areas is restricted, and violations such as illegal parking and obstruction of parking are increasing every year. Therefore, in this study, we propose a system to crack down on illegal parking in handicapped parking areas using the YOLOv5 model, a deep learning object recognition model to improve parking interference within parking spaces.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.664-666
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• 2021

Anti-drone means a device that detects and blocks the intrusion and activity of illegal drones, and includes technology that crashes illegal drones or destroys them in the air. This paper analyzes the impact of jamming due to remote drone detection with anti-drone technology. The impact of jamming signals may vary depending on the distance of the drone. The present invention has an advantage of simultaneously jamming a drone at a short distance and a drone at a long distance due to the generation of a triangular wave, and efficiently operates a battery by not transmitting the drone at a maximum power.Also, even if the jamming is not affected at a distance, the jamming effect is greater at a close range, so it can be influenced differently.

• Journal of the Korean Society of Food Culture
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• v.21 no.4
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• pp.406-413
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• 2006

This study investigated legal environments on customers' experiences of accidential losses in a restaurant service. A wide review of the cases showed that restaurant customers' experiences of accidential losses are classified into 11 types as follows; loss of personal belongings with posted warning, loss of personal longings without posted warning, injuries in a restaurant with posted warning, injuries in a restaurant without posted warning, injuries while eating, food poisoning, injuries from defective tablewares, allergic reactions, illegal or unsanitary food supplies, and false labeling of countries of origin. The results of this exploratory study revealed that the respondents had experienced some out of those 11 incidents in average 2.6 times in all of their restaurant visits, and the incidents frequently happened in independent restaurants rather than in fast-food establishments, family restaurants, or hotel restaurants. The results also showed that the accidents from illegal or unsanitary food supplies was happened most frequently and false labeling of countries of origin was mostly anticipated increasing in the future.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.315-316
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• 2022

최근 전 세계적인 탄소 중립 정책으로 인해 전기차 보급 속도는 예상보다 훨씬 빠르게 증가하고 있다. 하지만 늘어나는 수요에 비해 전기차 충전기 수는 턱없이 부족하다. 그뿐만 아니라 일반 차들의 전기차 충전소 불법주차로 인해 전기차가 충전하지 못하는 불편함이 발생하고 있다. 본 논문에서는 에지 컴퓨터(edge computer)와 딥러닝 기반 객체 감지 시스템 YOLO(You only look once)를 이용한 전기차 충전소 불법주차 방지 시스템을 개발한다. 먼저, 이 시스템은 카메라를 통해 실시간으로 영상을 받아 YOLO를 이용하여 차량 번호판 인식이 되면 전기차 번호판의 특정 마크를 인식하여 전기차인지 일반 차인지를 판별하여 판별된 값에 따라 주차 차단기가 작동되는 시스템이다. 전기차이면 차단기가 내려가서 충전소를 이용할 수 있게 하고 일반차일 경우 주차 차단기가 내려가지 않고 막아 불법주차를 차단한다. 이와 같은 기술을 활용하여 전기차 충전소 불법주차 방지에 기여하고자 한다.