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차량 추적 시스템에서 RCP를 식별하기 위한 방법 설계 및 구현
이용권,장청룡,이대식,Lee, Yongkwon,Jang, Chungryong,Lee, Daesik 디지털산업정보학회 2016 디지털산업정보학회논문지 Vol.12 No.2
GPS(Global Positioning System) location tracking is a method for taking the precise coordinates after the coordinates are obtained by a GPS receiver, and displaying them on the map. In this paper with WAVE(Wireless Access for Vehicular Environment) simulation, we show that various services such as vehicle tracking service, real-time road conditions service and logistics can go tracking service, control and operation services according to the vehicle position and the traveling direction by using the GPS position data. A vehicle tracking system using GPS is automatically able to manage multiple RCP when exchanging data between RMA and the RCP, and it provides rapid requests and responses. To verify that multiple sessions between RMA and RM, as well as multiple sessions between RMA and RCP are able to be implemented, we take RMA as a RCP application on an OBU, until the RMA is receiving data response from corresponding RM. As a result of this experiment, we show that the response speeds of single session between RMA and RM using 1, 2, 3, and 4 kbyte unit data are similar, 62.32ms, 62.65ms, 63.02ms, and 63.48ms, respectively. Likewise, those of 128 muliple sessions using 1, 2, 3, and 4 kbyte unit data are not much more time difference, 298.08ms, 302.21ms, 322.85ms, and 329.62ms, respectively.
러시아 에너지 자원과 푸틴의 동북아 전략의 상관관계 분석
이용권(Lee Yongkwon) 한국슬라브유라시아학회 2007 슬라브학보 Vol.22 No.3
Russian Northeast Asia policy is considered relatively successful in Putin's time. Moreover, compared to Yeltsin's time, it executes Northeast Asia policy in more active and realistic dimension. This is a result of normalization of Russian economy, maintenance of high economic growth and political stability based on Putin's leadership. However, the important fact is that the basis for normalization of russian economy and the quick economic growth was the energy resources of Russia. That is, Russia was able to secure large scale finances by exporting energy resources in the high oil price structure formed after 1999 and on that basis, it was able to accumulate industrial resources and maintain high economic growth. Russian energy resources played an important role in raising Russia's profile in international economy and politics and specially became an important element in strengthening russian influence in Northeast Asia. Through such strengthening of profile, Russia was able to establish and practice its Northeast Asia policy. In the end, energy resources were embossed as the Russian Northeast Asia foreign policy's major card and the effects were ever increased as they were tuned to the political and economic characteristics of Northeast Asia nations.
Steer-by-Wire의 조향 반력 제어 유닛 개발에 대한 연구
이상준(Sangjun Lee),이용권(Yongkwon Lee),정현진(Hyunjin Jeong),이민혁(Minhyuk Lee) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11
This paper is about Steer-by-Wire of the next generation steering system to be applied to autonomous driving vehicles. This paper covers a study of the Force Feedback Unit in the Steer-by-Wire system that affects the driver’s steering feel. To provide the driver with the same steering feel as the existing Electronic Power Steering system, we selected the target vehicle. And then, we measured and analyzed the results of the Electronic Power Steering system evaluation and applied them to the study before starting the study. To design the Force Feedback Unit, we analyzed the dynamic motion of the vehicle and related parameters and applied them to the vehicle dynamics simulation (dSPACE, ASM). In the Steer-by-Wire system, the column’s Force Feedback Unit control algorithm was model-based designed and the performance was validated at the Hardware in the Loop level.
모바일 인스턴스 메신저를 이용한 양방향 검색 알고리즘의 설계 및 구현
이대식,장청룡,이용권,Lee, Daesik,Jang, Chungryong,Lee, Yongkwon 디지털산업정보학회 2015 디지털산업정보학회논문지 Vol.11 No.2
In this paper, we design and implement a two-way search algorithm that can provide a customized service through the user with real-time two-way communication using a mobile instant messaging service. Therefore, we design and implement the automative search system which enables delivering message to each user mobile terminal from a plurality of relay mobile terminals by utilizing the mobile instant messenger, not to deliver a message from the main server to the mobile instant messenger user directly. Two-way search system using the mobile instant messenger can be immediately collect the user's response is easy to identify the orientation of each user, and thus can be provided to establish a differentiated service plan. Also, It provides a number of services(text, photos, videos, etc) in real-time information to the user by utilizing the mobile instant messenger service without the need to install a separate application. Experiment results, data processing speed of the category processing way to search for the data of the DB server from a user mobile terminal is about 7.06sec, data processing number per minute is about 13 times. The data processing speed of the instruction processing way is about 3.10sec, data processing number per minute is about 10 times. The data processing speed of the natural language processing way is about 5.13sec, per data processing number per minute is about 7 times. Therefore in category processing way, command processing way and natural language processing way, instruction processing way is the most excellent in aspect of data processing speed, otherwise in aspect of per data processing number per minute, the category processing way is the best method.
안경익(Kyungik AN),이용권(Yongkwon LEE),류동수(Dongsoo RYU) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.2
Most of plant facilities are modified many times, often without proper support needed to confirm with their design base and to update their engineering data, maintenance rules and operating procedures. This lack of equilibrium between the requirements, design information and physical plant still remains a significant issue. Configuration management is a process of identifying and documenting the characteristics of a plant"s structures, systems and components, and of ensuring that changes to these characteristics are properly developed, assessed, approved, issued, implemented and verified. This study focuses on how to manage the major equipment engineering information of nuclear power plant using systems engineering V-model approach, and proposes a data model to manage the information in relation to manage their life cycle. In addition, this study conducted a research and development project in nuclear power plant, and developed a prototype system based on this approach to verify its feasibility. It has been demonstrated that this approach can provide not only provide an explicit configuration management and control on the information, but can also provide a more efficient method to integrate, manage and visualize complex plant information.