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Person Tracking with a Mobile Robot using Particle Filters in Complex Environment (복잡한 환경에서 파티클 필터를 이용한 자율이동로봇의 사람추적방법)

  • Kwon, Ho-Sang;Kim, Young-Joong;Lim, Myo-Taeg
    • Proceedings of the KIEE Conference
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    • 2005.07d
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    • pp.2796-2798
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    • 2005
  • This Paper presents a method that a mobile robot can track persons in complex environment using particle filters. The topic of person following using mobile robot is researched in many different areas. The main problems of following a person are real time constraint, motion change of person during the tracking and occlusion with other objects. We present appearance adaptive models in a particle filter to realize robust visual tracking algorithm. Adaptive appearance model can handle occlusion with other people while target is moving.

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The Trend of the Standardization of the Urban Guided Transport Management System in Europe (유럽 도시철도 신호시스템의 표준화 동향)

  • Lee Young-Hoon;Kim Jong-Ki
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.1266-1273
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    • 2004
  • Urban railway signaling system is for train operation with safety in the urban crowded area, that has been increasing the demand of use of advanced train control systems with safe. European Commission is supporting the UGTMS(Urban Guided Transport Management System) project for the research and development. The main objective of UGTMS is to provide the European urban guided transport sector (comprising metro, tram and light rail systems) with a common Management System. A key topic is the extent to which the specifications for the successful ERTMS(European Rail Transport Management System) can be adapted to UGTMS needs. Beyond this, it is necessary to define the relevant functional and system requirements for all types of urban guided transport management systems in order to improve interoperability and intermodality. Also to be explored are the prospects for open system standards. In this article, we look into the trend of the standardization through the UGTMS project in Europe and consider any benefit to the project of the standardization for the urban railway signaling system in Korea.

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Optimal Power Allocation of Opportunistic Transmission Relay Systems in Rayleigh Fading Channel (레일레이 페이딩 채널에서 기회전송 릴레이 시스템의 최적 전력 할당)

  • Kim, Nam-Soo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.9 no.6
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    • pp.1-8
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    • 2009
  • Though the wireless ad-hoc network which is recently highly focused is power limited network, one of the main research topic is power saving. We propose a optimal power allocation strategy and derive the optimal power of the opportunistic transmission relays for minimum outage probability of the power limited network. It is shown that the proposed optimal power allocation has always better performance than that of the equal power allocation.

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Study and Implementation on Compensation of Step Jump Errors and Integrated Filter in the INS/GPS System

  • Hong, Woon-Seon;Choi, Sang-Wook;Park, Heung-Won;Kim, Chen-Jung
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.114.3-114
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    • 2001
  • The pure navigation system using Inertial Navigation Unit(INU) which has very accurate short term stabilities but not long term gives rise to position errors propotional to time. On the contrary, Global Positioning System(GPS) which is bounded its errors to some fixed ranges shows higher accuracy in the long term, and lower accuracy in the short term than that of INS. Recently the integration of these two systems is one of the main topic in the field of navigation system. In this thesis, the implementation of kalman filter on the real time navigation computer and step jump error compensation method is suggested.

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Study on the MQTT protocol design for the application of the real-time HVAC System

  • Jung, Hun
    • International Journal of Internet, Broadcasting and Communication
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    • v.8 no.1
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    • pp.19-26
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    • 2016
  • In this paper, the existing domestic HVAC systems, devices TCP / IP does not support the most, thereby, not performed remote management, it is necessary to regularly field service, inefficiency and cost bring a burden. This is through a comparison of the IoT-based primary, real-time protocol of what has become a hot topic recently, to be able to control and real-time monitoring through the CCU device in the HVAC system. Compare for this Internet of Things device for real-time monitoring and control of the XMPP, CoAP, MQTT main real-time protocol is used on. Finally, flexibility, light weight, based on MQTT a two-way messaging protocols with reliable message delivery, implements the protocol on the real-time HVAC system in the cloud platform.

Feminine Aspirations with the Real World of Men in George Eliot's Middlemarch

  • Shim, Jae-Hwang
    • English Language & Literature Teaching
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    • v.13 no.4
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    • pp.153-165
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    • 2007
  • The story treats each individual's vision as well as social reality that the author intends to describe. The purpose of this article is to search for the conflict between vision and reality, especially in feminist problem that critics have treated on the works of women writers. Though some articles have studied on the issue similar to this article, I try to analyze the narratives in the text that the author herself confesses to us. I think that we can find out clear messages from the individuals who construct the human relationship and build up their personal history through their dialogue or monologue. We can also catch their main problems in the community. I discuss the topic by mentioning the detailed discourses referred to the heroine and other characters in the text. The passages mentioned by the characters in the story may be a confession for the present and future generation that the author tries to confess. From the excerpts of some discourse, I can conclude that though Dorothea has a vision for her ideal, she is a failed feminist, for society is too strong for her as Miller (1990) argues.

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A Study on the Metadata Authority Description Schema for the Interoperability of Authority Data (MADS를 기반으로 한 전거데이터 상호운용성에 관한 연구)

  • Lee, Hyewon
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.23 no.4
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    • pp.25-44
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    • 2012
  • This study analyzed the current condition of authority control, introduced the MADS(Metadata Authority Description Schema) for authority data. MADS supports encoding an authority description for a agent(person, organization), event, term(topic, temporal entity, genre, geographic entity, hierarchical geographic entity, occupation) and defines main elements, subelements, and attributes using the XML schema language. Lastly, using the MADS's characteristics, this study proposed the effective use plans of interoperability of authority data.

An Empirical Study on Critical Success Factors in Internet Shopping Mall (인터넷쇼핑몰 성공요인에 관한 실증적 연구)

  • Kim, Chi-Ho;Eom, Kwang-Yeol
    • International Commerce and Information Review
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    • v.7 no.1
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    • pp.3-18
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    • 2005
  • The purpose of this study is to investigate the determinants of critical success and to analyze the main factors which are affecting the successful implementation of Internet shopping mall. The major findings of empirical analysis are as follows : 1) The degree of searching easuness in the internet shopping mall is statistical significance. 2) The degree of customer response is the important success factor. 3) The speed of connection exert a beneficial influence upon the performance of shopping mall. 4) The standard of security system is be in direct proportion to the performance of shopping mall The result of this study will be useful for the chief executive officers to make more rational decision making for e-Business strategies is related to the Internet shopping mall. The paper also strives to provoke debate in this area with to encouraging further research on the topic.

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A Method for Key Generators Using Algorithms in Stream Ciphers (스트림 암호에서 개선된 알고리즘을 이용한 암호 키 발생 방법)

  • 최진탁;송영재
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.14 no.6
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    • pp.604-610
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    • 1989
  • As the volume of communication data and information exchange, the protection of data which we want to keep secret from invalid users would be a main topic nowadays. This paper describes the use of an arbitrary bit-sequence generating algorithm as the cryptographic key for a stream cipher. Emphasis is places on methods for combining stream generators into more complex ones, with and without randomization.

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An Empirical Study on the Development of Behavior Model of Insurance Fraud (보험사기행동모형 개발에 관한 실증적 연구)

  • Lee, Myung-Jin;Gim, Gwang-Yong
    • Journal of Information Technology Services
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    • v.6 no.2
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    • pp.1-18
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    • 2007
  • Many researches have been done in insurance fraud as the amount and frequency of insurance fraud have been increasing continuously. In particular, the development of insurance fraud detection system using large database management techniques including data mining or link analysis based on visual method have been the main research topic in insurance fraud. However, this kinds of detection system were very ineffective to find unintentional insurance fraud happened by accident even though it was so good to find intentional and organized crime insurance fraud. Therefore, this research suggests insurance fraud as an ethical decision making and applies TPB(Theory of Planned Behavior) for the finding of reasons and prevention strategies of unintentional insurance fraud happened by accident. The results of research show that TPB is very appropriate model to explain the behavior of insurance fraud and that insurance agents force to do insurance fraud as affecting perceived behavior control. Therefore, education and pubic relations for insurance fraud are very effective for preventing insurance fraud and developing insurance service industry.