• Title/Summary/Keyword: location awareness

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The development of localization server system for location-awareness in smart home (지능형 홈에서 위치인지를 위한 localization server system 기술 개발)

  • Lim, Ho-Jung;Kang, Jeong-Hoon;Lee, Min-Goo;Yoo, June-Jae;Yoon, Myung-Hyun
    • Proceedings of the KIEE Conference
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    • 2005.10b
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    • pp.606-608
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    • 2005
  • In this paper, we introduce localization server system calculated real location of objects using raw data of location-awareness from sensor node gateway. The software architecture of localization server system consists of location calculation and actuator control based on location. Also, this system supports for collecting raw data, calculating location of real objects using raw data, correcting error from outer environment, and server for applications based on location.

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A Study on the Suggestion of a Lighting Control System Applying General Illumination and Technology of User and Location Awareness (전반조명 기반 사용자 및 위치인식기술 적용 조명제어 시스템 제안 연구)

  • Park, Juil;Lee, Haengwoo;Seo, Janghoo;Kim, Yongseong
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.27 no.10
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    • pp.527-536
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    • 2015
  • Studies for the reduction of lighting energy have been done using technologies such as user and location awareness. However, the focus of current research on location-based lighting control has been on energy reduction, which can lead to other issues including an imbalance in indoor illumination. This study proposes a lighting control system applying general illumination and technology for user and location awareness. The proposed lighting control system reduced lighting energy by 72.1%, 66.5% and 62.3% for 1, 2 and 3 users, respectively, compared to the On/Off lighting control system. This lighting control system causes an increase in lighting energy of 35.8% and 10.9% for 1 and 2 users compared to the lighting control system with user and location awareness, while a reduction of 9.4% was seen for 3 users. This means that the proposed system provides more effective energy reduction for a room with multiple occupants as it is based on the general lighting control scheme. The lighting control system applying general illumination and technology of user and location awareness improved the uniformity factor by 32.0%, 39.4% and 33.4% for 1, 2 and 3 users, respectively.

A Study on RFID Cell Planning Schemes for Indoor Location-awareness (실내 위치 인식을 고려한 RFID 기반 셀 구성 방안에 관한 연구)

  • Kim, Taehoon;Tak, Sungwoo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.9
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    • pp.2191-2198
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    • 2013
  • This paper proposes a RFID cell planning scheme for indoor location-awareness. We theoretically develop four objective functions that yield objective goals significant to the optimal design of a RFID cell topology and simulation is conducted to evaluate the performance of the proposed RFID cell planning scheme. We also evaluate the performance of the proposed technique after practically installing RFID readers in an indoor space to configure a RFID cell topology. Performance evaluations are conducted in terms of the following objective goals: minimal number of RFID readers for configuring a RFID cell topology, maximal RFID cell coverage areas for indoor location-awareness, minimal overlapping cells, and maximal indoor location-awareness accuracy.

Context-Awareness for Location Based-Service for Ubiquitous Learning with underlying Principles of Ontology, Constructivism, Artificial Intelligence

  • Gelogo, Yvette;Kim, Hye-jin
    • International Journal of Internet, Broadcasting and Communication
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    • v.4 no.2
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    • pp.7-11
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    • 2012
  • In this paper, we defined constructivism and ontology theory and associate it in ubiquitous learning. The typical ubiquitous learning involving the Context Aware Intelligent system was presented. Also the Architecture for learning environment including the key idea and technical concept is being presented in this paper. Guided with these principles and with the advancement of information and communication technology the context-awareness based on Artificial intelligence for Location based Service for ubiquitous Learning was conceptualized.

Analysis of road, irrigation facilities site for application of location awareness technology (위치인식기술 적용을 위한 도로 및 수리시설 현장 분석)

  • Kim, Chang-Shik;Kim, Sang-Kuk;Hwang, Tae-Ha;Pyeon, Mu-Wook
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2010.04a
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    • pp.325-326
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    • 2010
  • The purpose of study is an analysis of requirements for application of location awareness and looking for suitable road, irrigation facilities site.

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Research of Interference Minimization Method Between Node In Indoor Location Awareness System (실내 위치인지 시스템에서의 노드 간 간섭 최소화 방안 연구)

  • Shin, Jun-Ho;Kim, Dae-Hwan
    • Proceedings of the IEEK Conference
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    • 2006.06a
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    • pp.955-956
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    • 2006
  • In indoor location awareness system, Generally the system uses the difference of ultrasonic waves and RF arrival times. In this paper, We researched the interference minimization method between node in indoor location awareness system.

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uPaging : A Voice Message Delivery System Based on Real-Time Location-Awareness (uPaging : 실시간 위치 인식 기반의 음성메시지 전송 시스템)

  • Park, Yu-Jin;Jun, Sang-Ho;Kang, Soon-Ju
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37B no.11
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    • pp.1004-1013
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    • 2012
  • The legacy voice broadcast systems are used to broadcast the voice over an entire space or a specific zone. these broadcast systems generate unnecessary noise and waste of resources. In this paper, we propose a ubiquitous voice message broadcast system called uPaging, by combining the technique of location-awareness and the voice message delivery service in ubiquitous sensor network environment. In uPaging system, the wire/wireless hybrid network is used to implement the network system. Also, in order to actualize the location-awareness service, we use the Bidirectional Location ID-Exchange protocol was suggested by our previous research. the uPaging system can deliver the voice to a selected user or the location in which the user is present by this location awareness.

A Precise Location Tracking System with Smart Context-Awareness Based-on Doppler Radar Sensors (스마트한 상황인지를 적용한 도플러 레이더 센서 기반의 정밀 위치추정 시스템)

  • Moon, Seung-Jin;Kim, Hong-Kyu
    • Journal of Institute of Control, Robotics and Systems
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    • v.16 no.12
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    • pp.1159-1166
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    • 2010
  • Today, detecting the location of moving object has been traced as various methods in our world. In this paper, we preset the system to improve the estimation accuracy utilizing detail localization using radar sensor based on WSN and situational awareness for a calibration (context aware) database, Rail concept. A variety of existing location tracking method has a problem with receiving of data and accuracy as tracking methodology, and since these located data are the only data to be collected for location tracing, the context aware or monitering as the surrounding environment is limited. So, in this paper, we enhanced the distance aware accuracy using radar sensor utilizing the Doppler effect among the distance measuring method, estimated the location using the Triangulation algorithm. Also, since we composed the environment data(temperature, illuminancem, humidity, noise) to entry of the database, it can be utilized in location-based service according to the later action information inference and positive context decision. In order to verify the validity of the suggested method, we give a few random situation and built test bed of designed node, and over the various test we proved the utilizing the context information through route tracking of moving and data processing.