• 제목/요약/키워드: Position Awareness

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이동로봇을 위한 RFID tag 기반의 위치 오차 보정 기법 (A Position Error Revision Techniques of RFID tag Base for Mobile Robot)

  • 최종훈;정대섭;정기호;심현민;권오상;이응혁
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년 학술대회 논문집 정보 및 제어부문
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    • pp.560-562
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    • 2006
  • In this paper, Correct problem in dead reckoning system and proposed about position error revision techniques of mobile robot to use RFID tag for position awareness. With the dead reckoning system, as the accumulation of error are unavoidable because of accumulation of informations as the time passage, so it is impossible to get correct information about posture, including torrent direction, movement distance, etc. As one of compensation method, the suggested method is that after selecting special area (corridor), compensate absolute location information by arranging two line of RFID tag along two side of corridor. Through this suggested method, it could be used when robot wants to move in limited areas.

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기혼여성의 자기지각이 혼외관계 수용성에 미치는 영향: TV 불륜 드라마에 대한 비판의식이 미치는 매개효과를 중심으로 (The Effect of Married Women's Self-Awareness on the Acceptance of Extra-Marital Relationship: Focused on the Mediated Effect of Individuals' Criticism of TV drama regarding Infidelity)

  • 이희진
    • 한국산학기술학회논문지
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    • 제21권2호
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    • pp.115-123
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    • 2020
  • 본 연구의 목적은 기혼여성들의 혼외관계 수용성에 자기지각이 미치는 영향에 TV 불륜 드라마에 대한 비판인식의 매개효과를 실증적으로 규명하는 것이다. 본 연구는 위해 기혼여성(304명)을 대상으로 설문조사를 실시하여 얻은 자료를 구조방정식 모델(SEM: Structural Equational Model)에 기초하여 분석하였다. 분석결과 밝혀진 주요 내용은 다음과 같다. 첫째, 응답자들은 혼외관계 수용성(Mean=2.6346, 5점 척도) 수준은 전반적으로 낮은 편이다. 전체 응답자들 중에서 혼외관계를 수용하지 않는다고 밝힌 응답자는 46.7%였다. 혼인관계에 대해서 불분명한 입장을 보여준 응답자들이 43.8%였고, 혼외관계에 수용적인 입장을 보인 응답자들도 약 10%정도 되었다. 혼외관계문제가 기혼여성들에게 중요한 현실문제로 대두될 수 있음을 시사해준다. 둘째, 기혼여성의 '혼외관계 수용성'에 '자기지각성'은 직접적으로는 영향을 미치지는 않았지만, 불륜을 주제로 한 TV 드라마에 대한 '비판의식'을 완전매개(full mediation)로 하여, '자기지각성'은 '혼외관계 수용성'에 유의한 영향을 미칠 수 있음이 밝혀졌다. 기혼여성들이 불륜 TV 드라마의 콘텐츠에 대해서 얼마나 비판적인 사고와 판단을 할 수 있는지 여부가 기혼여성들이 혼외관계에 대한 인식을 이해하는데, 매우 중요한 측면임을 확인하였다. 연구결과를 토대로 실천적 함의를 논의하며 제안하였다.

유비쿼터스 컴퓨팅을 위한 초음파 위치인식 시스템의 인식영역 확장 기법에 관한 연구 (A Study on the Recognizing Range Expansion Techniques of the Ultrasonic Location Awareness System for the Ubiquitous Computing)

  • 박종진;이동활;김수용;문영성
    • 한국통신학회논문지
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    • 제31권7B호
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    • pp.595-601
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    • 2006
  • 이 연구는 유비쿼터스 컴퓨팅 환경에서 절대 위치 좌표를 제공할 수 있는 초음파 위치인식 시스템에 관한 것이다. 무선(RF: Radio Frequency) 신호에 의해 동기화된 다수의 고정된 발신기가 순차적으로 초음파를 발신하며, 초음파 신호들을 수신한 수신기에서 TOF를 파악하여 이를 거리로 환산한 다음 위치정보를 계산한다. 초음파의 전파시간(TOF: Time of Flight)은 주기인식 방법을 통해 파악한다. 또한 유비쿼터스 컴퓨팅을 위한 인식 영역의 확장을 위해 셀 매칭 기법과 부호화된 초음파 기법을 제안한다. 초음파 위치인식 시스템인 U-SAT을 사용하여 주기인식 기법의 유용성을 입증하기 위하여 다양한 거리에서 실험을 수행하였다. 또한 셀 매칭 기법에 의한 영역 확장에서도 위치 측정의 정확도를 검증하였으며 부호화된 초음파 기법의 분석으로 그 유용성도 입증하였다. 그 결과로 인해 저가격, 높은 갱신율, 그리고 상대적으로 뛰어난 정밀도의 입장에서 GPS가 적용될 수 없는 환경에서의 유비쿼터스 컴퓨팅의 위치인식 시스템으로서의 가능성을 입증하였다.

국내 의류상품의 트래디셔널 브랜드 마켓에 대한 연구 (A Study on Traditional Brand Market for Fashion Merchandise in Korea)

  • 박송애;이선재
    • 복식
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    • 제52권2호
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    • pp.1-17
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    • 2002
  • The Traditional Look, a class of fashion, represents image based on British aristocratic authenticity and cultural heritage as unchangeable and lasting classic fashion style. And recently, it keeps up with the trend of modern and young consumers' desire by putting various images. The purpose of the study is to investigate the concept, image and present market condition and to analyze degree of consumers' brand awareness of Traditional brand in pursuit of developing new market and ensuring power between competitive brands. From above work, surveyed on degree of brand awareness and interest, preference, associable image and purchase factors coming from consumers. 606 data were analyzed with SPSS package. Frequency, Factor analysis, one-way ANOVA, Multiple response, and correlation were applied. The results of this study were as follows. 1. Traditional brand has a high degree at consumers' brand awareness but comparatively lower at interest in it. In band name, while the Burberry has the highest brand awareness, the Polo and the Hunt take first and second position in a purchasing rate. Brand preference has tendency to be concentrated on certain brands showing the outstanding highest degree like the Polo in the 20s, and the Burberry in the 50s in aspect of age structure. 2. In associable image of Traditional brand, it is associate with noble image as dignified, classical and intellectual with itself strongly among practical, individuality, confidential and noble image. 3. As the purchase factors of traditional brand products, it depends on mainly the reliability and esthetic factors like design and quality rather than ostentatious and practical factors. 4. Associable image except individuality image is correlated with the purchase factors of traditional brand.

수술실 간호사의 병원감염관리 실천정도에 영향을 미치는 요인 (Factors Affecting on the Level of Practice on Nosocomial Infection Management among Operating Room Nurses)

  • 허선;김인숙;김계하
    • 성인간호학회지
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    • 제20권3호
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    • pp.375-385
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    • 2008
  • Purpose: This study is to identify factors affecting on the level of practice on nosocomial infection management of operating room nurses. Methods: The subjects of this study were 155 nurses who worked in operating rooms of six medical centers in located Gwangju and Chonanam area. Data were collected during October, 2006 by the questionnaire including a total of 124 questions. Data collected were analysed with use of SPSS 12.0 program. Results: There was a significant difference of the level of practice by marital status(t=3.957, p=.048), education level(F=3.691, p=.027), position(F=6.588, p=.002), type of hospital(t=4.857, p=.029), number of nurse(F=4.243, p=.007), education about nosocomial infection management(F=3.069, p=.030), management council(t=6.397, p=.012) and management manual(t=6.961, p=.009). There were significant correlations between knowledge and practice (r=.389, p=.000), and between awareness and practice(r=.389, p=.000). Knowledge on nosocomial infection management, awareness of hands washing and positions were affecting factors on the level of practice. Conclusion: This study suggests that knowledge and awareness on nosocomial infection prevention and management of operating room nurses should be improved through consistent education. and support of administrator's of hospitals is needed.

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ELS: 유비쿼터스 센서 네트워크를 위한 GPS 기반의 효율적인 위치인지 기법 (ELS: An Efficient Localization Scheme based on GPS for Ubiquitous Sensor Network)

  • 윤재근;고두현;김범진;안순신
    • 전기학회논문지
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    • 제59권1호
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    • pp.197-203
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    • 2010
  • The problem of location awareness in wireless sensor networks where nodes use GPS (Global Positioning System), remains challenging problem, when considering the required large energy consumption during the localization phase. In this paper we designed hardware for GPS based localization and propose a framework, called ELS, to consume low cost energy. In the ELS framework, sensor nodes are equipped with GPS. Because GPS spends large energy for position awareness, conventional localization algorithms cannot use GPS-device. We try to find a solution for efficient energy expenditure of GPS. Finally, we derive optimal transmission power of GPS data and a scheme of localization through experiment and simulation.

브랜드 인지도와 관여도가 제품 품질 선택에 미치는 영향에 관한 연구 (An Effect of Brand Awareness and Involvement upon Choice of Product Quality)

  • 한경희;조재립
    • 품질경영학회지
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    • 제32권1호
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    • pp.102-112
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    • 2004
  • Keep in step in trend that interest for brand is rising and enterprise should tries to customer to Inform own brand. The mayor is diversified and work this which make correct product or brand on customer need is work which our enterprise does now. And should judge the availability whether customer is satisfied to product according to the brand. Because this can be the most important matter which is kept customer and create profit that is enterprise's ultimate object. In this study, customer measured brand enforcing to blue jeans clothing company how is recognizing and distinguishes brand forefinger to low rank group with high position group. And, measured satisfaction by each group. Measured new concept that is when enforce customer satisfaction, expectation which is existent theory, result, Involvement with inconsistency theory making grafting and confirmed that involvement is factor influencing in customer satisfaction measurement.

A Study on Advanced Location Awareness Component using Smart Phone GPS in BIS

  • Lee, Hwajeong;Koh, Jingwang;Lim, Gyugeun;Lee, Seookcheol
    • 한국컴퓨터정보학회논문지
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    • 제24권5호
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    • pp.41-47
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    • 2019
  • A BIS(Bus Information System) collects, processes and analyzes information such as real-time location and operation status during bus operation. And It is a system that provides valid information to citizens, drivers, traffic centers and bus companies. Transport information system sent by an each bus is collected through GPS(Global Positioning System), DSRC(Dedicated Short Range Communications), Beacon and passed to transport information center. BIS data by collected is handled and analyzed. Next, it is transmitted to citizen, drivers and bus companies in real time. The result of 5 times simulation satisfied the test criteria(error range ${\pm}10m$) with an average error range of 3.306m, and the reliability is increased. In this paper, we propose a improved location transfer component that can provide users to quicker and more accurate location information than existing BIS using GPS of smart phone. It can be seen that reliability is improved by securing improved bus position data.

Utilization of Planned Routes and Dead Reckoning Positions to Improve Situation Awareness at Sea

  • Kim, Joo-Sung;Jeong, Jung Sik;Park, Gyei-Kark
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제14권4호
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    • pp.288-294
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    • 2014
  • Understanding a ship's present position has been one of the most important tasks during a ship's voyage, in both ancient and modern times. Particularly, a ship's dead reckoning (DR) has been used for predicting traffic situations and collision avoidance actions. However, the current system that uses the traditional method of calculating DR employs the received position and speed data only. Therefore, it is not applicable for predicting navigation within the harbor limits, owing to the frequent changes in the ship's course and speed in this region. In this study, planned routes were applied for improving the reliability of the proposed system and predicting the traffic patterns in advance. The proposed method of determining the dead reckoning position (DRP) uses not only the ships' received data but also the navigational patterns and tracking data in harbor limits. The Mercator sailing formulas were used for calculating the ships' DRPs and planned routes. The data on the traffic patterns were collected from the automatic identification system and analyzed using MATLAB. Two randomly chosen ships were analyzed for simulating their tracks and comparing the DR method during the timeframes of the ships' movement. The proposed method of calculating DR, combined with the information on planned routes and DRPs, is expected to contribute towards improving the decision-making abilities of operators.

실내 위치 인식 시스템에서의 위치 정보 관리를 위한 실시간 위치 데이터 관리 기법 (A realtime location positioning data management methods for location information managements in the indoor location awareness system)

  • 윤창표;황치곤
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2015년도 추계학술대회
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    • pp.278-279
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    • 2015
  • 최근, 스마트 기기의 발전과 더불어 스마트 단말을 이용한 지능형 실내 위치 인식 서비스에 대한 관심이 증대되고 있다. 이때 실내 위치 측위 기술로서 BLE(Bluetooth Low Energy) 기술이 관심을 받고 있다. 그러나 방대한 위치 정보를 수신하는 스마트 단말에서 수집된 위치 정보의 신뢰성을 확인할 수 있는 방법은 없다. 이는 신호 간섭 등의 이유로 실내 위치 정보의 신뢰성가 떨어지기 때문이다. 본 논문에서는 iBeacon의 위치 정보로 부터 신뢰성 있는 위치 정보를 얻기 위해 수집된 빅 데이터의 관리 기법을 제안한다.

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