• Journal of Korea Game Society
• /
• v.10 no.2
• /
• pp.29-36
• /
• 2010

As more and more advanced technology implemented in Computer Game, various of technical skill must be applied to satisfy the demand of the users specifically in the immersion and convenience of the games. As a result, The number of interactive games, which are controlled by user's physical action so that make the games more immersible, are increasing. In Addition, as the amount of information that happens in the games increases, many studies are going on to provide efficient user-interface. In this study, we develop an interactive game using a controller designed by us, which consist of Wii controller and an attached secondary display that provides game information to user. In addition, we conduct a survey with questions about immersion and convenience of the game to understand how users feel when doing the suggested game, and to compare our game environment with general FPS game environment that uses mouse and keyboard.

• Journal of Korean Society of Transportation
• /
• v.33 no.2
• /
• pp.204-213
• /
• 2015

The congestion of pedestrians impedes the utilization efficiency of a subway station. Conflicts among pedestrians due to unseparated pedestrian flows not only increase the impedance of pedestrian mobility but also negatively affect on pedestrian safety. This paper analyzes the travel characteristics of bi-directional pedestrian flow based on microscopic movements, and evaluates the operation efficiency on separating the traffic line. The subway station was simulated in a 2-D grid structure by applying Discrete Element Method, and the movement is organized in each cell of the grid. As a result, the model explicates that separating the traffic line and encouraging the 'Keep right rule' would be mostly effective for the conflicting flows. Therefore, applying the 'Walking Guidance System' would be efficient to improve the pedestrian convenience and mobility.

• The Journal of the Korea Contents Association
• /
• v.13 no.3
• /
• pp.22-31
• /
• 2013

For the case of test equipments requiring data accuracy, real-time is highly required in acceptance test for performance evaluation of developed weapons. For convenience' sake, test equipments are usually developed using Windows. However Windows does not support real-time in itself. Thus, in this paper, so as to reduce development time and expenses, we design and implement an integrated middleware for real-time device drivers using RTiK-MP. Using DLL, we also support user API's for the sake of development convenience without details of the complex RTiK-MP structure. We evaluate the performance of the proposed integrated middleware using the RDTSC command which returns the number of CPU clock ticks. The evaluation results show that it operates correctly within error ranges in the periods of 1ms and 4ms for the cases of TCP/IP and RS-232, respectively.

• Journal of Korea Society of Industrial Information Systems
• /
• v.17 no.2
• /
• pp.65-72
• /
• 2012

In the 21st century of information systems, the amount of information resources are ever increasing and the role of information searching system is becoming criticalto easily acquire required information from the web. Generally, it requires the user to have enough pre-knowledge and superior capabilities to identify keywords of information to effectively search the web. However, most of the users undertake searching of the information without holding enough pre-knowledge and spend a lot of time associating key words which are related to their required information. Furthermore, many search engines support the keywords searching system but this only provides collection of similar words, and do not provide the user with exact relational search information with the keywords. Therefore this research report proposes a method of offering expanded user relationship search keywords by analyzing user query patterns to provide the user a system, which conveniently support their searching of the information.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.2
• /
• pp.164-170
• /
• 2016

The initial urban railway was only required to perform its role as means of transportation. As the time of staying in an underground platform was extended, it has been faced with the issues of environmental improvement as a living space. Therefore, the sliding automatic door, which is the basis of the screen door, is used widely for large distribution stores, hospitals, restaurants, and public offices for customers' convenience and as a convenient method to control access. Therefore, screen doors are required for the purpose of customers' convenience, securing safety, establishing pleasant station buildings, and energy savings. It would be also necessary to develop the optimal design technology for a screen door system through the design of element parts and to ensure reliability. Therefore, this paper calculated, interpreted, and verified the theoretical weight of the composition parts to verify the design drive hardness of the motor for screen doors necessary for the safety of subways.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.42 no.3
• /
• pp.142-156
• /
• 2019

[Purpose] It aims to suggest the differential factors to enhance the customer satisfaction and to activate the shopping in the convenience store (CVS). [Methodology] Convenience store service convenience (CVS SERVCON) was developed at the first time and the gap of relative importance level between the owners and the consumers was assessed by AHP analysis method..[Findings] First, the importance of access convenience was assessed as the first priority in both CVS owners' group and the consumers' group, while the detailed elements showed the differences which required the improvements. Based on the consumers' assessment, the importance of location was relatively low. They assessed relatively high on 24 hours operation of CVS and personal services. Second with respect to the transaction convenience, CVS owners' group rated it as the fourth priority while the consumers' group rated as the second, which requires the improvement. Third in terms of benefit utility and value-added service of post-benefit convenience which are the sub-factors of benefit convenience, the rate on the importance from the consumers showed higher than that from the owners, which requires the improvement. [Implications] Based on this study results, CVS operating companies are anticipated to be able to satisfy the customers, moreover, to secure the loyal customers if they concentrate the resources to develop the differentiation strategy on the areas where the consumers' demands are high while performs the maintenance strategy on the areas where their demands are low. In addition, this study contributed the theoretical expansion of SERVCON upon development of CVS SERVCON to comply with its definition.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.18 no.5
• /
• pp.156-170
• /
• 2019

Rapid increasing of smartphones has changed people's lifestyles, and location-based services are providing a platform to provide various conveniences in accordance with these changes. In particular, it may provide convenience to many users if location-based services are provided in an indoor area such as subway station. However, it is still a difficult task to ensure accurate positioning result for guiding routes in subway stations. This study proposes a KAI-R system that allows all processes to be performed in one system for indoor navigation in subway stations. The proposed system includes a new pedestrian step detection method for continuous positioning along with an improved fusion positioning algorithm.

• Journal of the Korean Institute of Gas
• /
• v.15 no.6
• /
• pp.1-7
• /
• 2011

The Measurement of risk parameter in city-gas equipments have been measured and confirmed by human, and evolved into remote monitoring system using wireless communication. Furthermore, domestic and international industry increase the efficiency of management, which can develop remote monitoring and control system using wireless communication. However, Those wireless system might be decrease the efficiency and ease because of connecting PDA and lap-top using wire-cable when data have checked immediately from outside. This paper is able to improve efficiency of safety management on city-gas equipments by developing mobile city-gas safety management system on AR.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2009.05a
• /
• pp.1327-1331
• /
• 2009

SWAT(Soil and Water Assessment Tool)은 대규모의 복잡한 유역에서 장기간에 걸친 다양한 종류의 토양과 토지이용 및 토지관리 상태에 따른 물과 유사 및 농업화학물질의 거동이 토지관리방법에 미치는 영향을 예측하기 위해 미국 농무성 농업연구소(USDA Agricultural Research Service, ARS)의 Jeff Arnold에 의해 1990년대 초에 개발된 유역모델이며, 최근에는 SWAT2005 모형이 개발되었다. SWAT 모형은 SWAT2000 모형을 구동하기 위한 ArcView 3.2a 기반의 인터페이스 시스템이 널리 이용되어 왔으나, 최근에는 SWAT2005 모형과 ArcGIS를 연계 운영하기 위한 ArcSWAT(Winchell et al, 2008)이 개발된 바 있다. 국내에서는 GIS와 데이터베이스를 기반으로 SWAT2000 모형의 구동 및 입출력 자료의 관리 등을 효과적으로 수행할 수 있는 SWAT2000 모형과 HyGIS(Hydro Geographic Information System)를 연계시스템인 HyGIS-SWAT(김경탁과 최윤석, 2006)이 개발된 바 있다. 본 연구에서는 최근 들어 SWAT2005 모형의 활용성이 높아짐에 따라 HyGIS와 SWAT2005 모형의 연계시스템을 개발하고자 하며, 이를 통해서 SWAT2005 모형 구동의 효율성과 편의성을 증대시킬 뿐만 아니라, 개선된 SWAT2005 모형으로 기존의 HyGIS-SWAT을 개선하고자 한다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2006.10c
• /
• pp.540-543
• /
• 2006

DTV는 방송 서비스 운영에 가입자 개념을 추가하여 무료방송 외에 정당한 수신료를 지불하는 사람만이 프로그램을 시청할 수 있도록 하며, 그러한 수익을 이용하여 보다 양질의 서비스를 제공할 수 있게 되었다. 가입자간의 구분을 가능하게 해주기 위한 방법이 제한수신시스템(CAS: Conditional Access System)이다. IPTV는 웹 브라우저를 기반으로 동작하며, 방송 콘텐츠라는 기본 TV기능에서 벗어나 T-commerce, E-commerce 등의 다른 도메인으로 사용자의 요구에 따라 자유롭게 이동하며 사용자인증이 요구되기 때문에 기존의 제한수신시스템으로는 그 기능을 다 하기 힘들어졌다. Single-Sign-On은 사용자가 단한번의 인증을 통하여 추가적으로 인증할 필요가 있는 다른 서비스로의 자동적인 인증을 제공한다. 다수의 사용자가 다수의 서비스를 제공받기를 원하는 IPTV환경에서는 단순한 사용자 인증과 접근제어의 기능을 가진 제한수신시스템과 빈번한 사용자인증의 번거로움을 해결할 수 있는 편의성을 제공하는 SSO의 융합은 필연적이라 할 수 있다. 그러므로 Single-Sign-On은 사용자의 요구에 따라 이동하기 쉬운 IPTV 환경에 매우 적합하다. 이 논문에서는 제한수신시스템, SSO, IPTV에 대해 설명하고 제한수신시스템과 SSO의 기능을 통합하여 IPTV환경에 적합한 새로운 인증방안을 제안한다.