• Title/Summary/Keyword: 실내 위치확인시스템

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Implementation of Location-Based Smart Campus and Class Guide System Using Beacon (비콘을 이용한 위치 기반의 스마트 학교 및 수업 안내 시스템 구현)

  • Kim, Myung-Ah;Kim, Da-Sol;Hwang, Ji-Yeon;Chang, Byeong-Mo
    • The Journal of the Korea Contents Association
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    • v.18 no.2
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    • pp.419-426
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    • 2018
  • Recently, indoor locating using beacon has gained much attention as an indoor locating technology. This technology has been used for various indoor LBS(location-based services). However, there is a lack of research on LBS service specialized in university yet. In this paper, we designed and implemented a smart LBS system using beacon for campus and class guide in the university. This system provides for campus and class guide services based on the current specific location in the campus, This system can be improved as more precise becon technology is developed.

Scholarly Assessment of Aruco Marker-Driven Worker Localization Techniques within Construction Environments (Aruco marker 기반 건설 현장 작업자 위치 파악 적용성 분석)

  • Choi, Tae-Hun;Kim, Do-Kuen;Jang, Se-Jun
    • Journal of the Korea Institute of Building Construction
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    • v.23 no.5
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    • pp.629-638
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    • 2023
  • This study introduces an innovative approach to monitor the whereabouts of workers within indoor construction settings. While traditional modalities such as GPS and NTRIP have demonstrated efficacy for outdoor localizations, their precision dwindles in indoor environments. In response, this research advocates for the adoption of Aruco markers. Leveraging computer vision technology, these markers facilitate the quantification of the distance between a worker and the marker, subsequently pinpointing the worker's instantaneous location with heightened accuracy. The methodology's efficacy was rigorously evaluated in a real-world construction scenario. Parameters including system stability, the influence of lighting conditions, the extremity of measurable distances, and the breadth of recognition angles were methodically appraised. System stability was ascertained by maneuvering the camera at a uniform velocity, gauging its marker recognition prowess. The impact of varying luminosity on marker discernibility was scrutinized by modulating the ambient lighting. Furthermore, the camera's spatial movement ascertained both the upper threshold of distance until marker recognition waned and the maximal angle at which markers remained discernible.

Indoor Position Technology in Geo-Magnetic Field (지구 자기장 기반의 Fingerprint 실내 위치추정 방법 연구)

  • Hur, Soojung;Song, Junyeol;Park, Yongwan
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.38C no.1
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    • pp.131-140
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    • 2013
  • Due to the limitations of the existing indoor positioning system depending on the radio wave, at present, it is required to introduce a new method in order to improve the accuracy in indoor environment. Recently, bio-inspired technology has become the future core technology. Thus, this study examined the accurate positioning method applying the abilities that animals with homing instinct measure their position by searching geomagnetic field with the use of their biomagnets. In order to confirm the applicability of geomagnetic field, a new source for indoor positioning, this study separated the constituent materials and building structure and designed the structures that can carry the actual magnetic field sensor and the data collection module. Subsequently, this study investigated the applicability of geomagnetic field as a positioning source by establishing the positioning system of Fingerprint method. In performance evaluation of the positioning system, the geomagnetic strength-based positioning system was similar to or approximately 20 percent higher than the wireless LAN-based positioning system in the buildings with the existing wireless LAN. Thus, in the environment without infrastructure for indoor positioning, the geomagnetic, an independent earth resource, can make it possible to realize the indoor positioning.

Implementation of Smart Asset Management System based on IoT at Incheon Airport (인천공항 IoT 기반 스마트 자산관리시스템의 구현 및 실증)

  • Cha, Hee-June;Son, Seokhyun
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2021.01a
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    • pp.305-306
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    • 2021
  • 본 논문에서는 인천공항 Airside와 Landside에 위치한 자산의 효율적인 관리를 위한 사물인터넷(IoT) 기반 스마트 자산관리 시스템의 구성과 실증을 제시한다. IoT기반 스마트 자산관리시스템은 위치정보를 생성하는 IoT 태그와 게이트웨이, 수집된 위치정보를 수신하고 표출하는 서버로 구성되어 있으며, IoT 태그를 자산에 부착하여 자산의 실내외 위치정보를 자산관리 시스템에서 실시간으로 확인할 수 있다. 실내 위치정보는 BLE(Bluetooth Low Energy)를 통해 취득하며, 실외 위치정보는 GPS와 LoRa(Long Range)를 통해 취득 가능하다. 개발한 시스템의 성능 검증을 위해 인천공항 제1여객터미널 내 기설치된 AP를 활용하였으며, 공항 전역을 커버할 수 있는 LoRa Gateway를 설치하였다. 개발한 자산관리 시스템은 공항이 보유한 자산의 도난 방지 등 효율적인 관리 와 공항운영에 기여할 것으로 예상된다.

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ARVisualizer : A Markerless Augmented Reality Approach for Indoor Building Information Visualization System

  • Kim, Albert Hee-Kwan;Cho, Hyeon-Dal
    • Spatial Information Research
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    • v.16 no.4
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    • pp.455-465
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    • 2008
  • Augmented reality (AR) has tremendous potential in visualizing geospatial information, especially on the actual physical scenes. However, to utilize augmented reality in mobile system, many researches have undergone with GPS or ubiquitous marker based approaches. Although there are several papers written with vision based markerless tracking, previous approaches provide fairly good results only in largely under "controlled environments." Localization and tracking of current position become more complex problem when it is used in indoor environments. Many proposed Radio Frequency (RF) based tracking and localization. However, it does cause deployment problems of large RF-based sensors and readers. In this paper, we present a noble markerless AR approach for indoor (possible outdoor, too) navigation system only using monoSLAM (Monocular Simultaneous Localization and Map building) algorithm to full-fill our grand effort to develop mobile seamless indoor/outdoor u-GIS system. The paper briefly explains the basic SLAM algorithm, then the implementation of our system.

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Performance Analysis of Indoor Localization Algorithm Using Virtual Access Points in Wi-Fi Environment (Wi-Fi 환경에서 가상 Access Point를 이용한 실내 위치추정 알고리즘의 성능분석)

  • Labinghisa, Boney;Lee, Dong Myung
    • KIPS Transactions on Computer and Communication Systems
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    • v.6 no.3
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    • pp.113-120
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    • 2017
  • In recent years, indoor localization has been researched for the improvement of its localization accuracy capability in Wi-Fi environment. The fingerprint and RF propagation models has been the main approach in determining indoor positioning. With the use of fingerprint, a low-cost, versatile localization system can be achieved without the use of external hardware. However, only a few research have been made on virtual access points (VAPs) among indoor localization models. In this paper, the idea of indoor localization system using fingerprint with the addition of VAP in Wi-Fi environment is discussed. The idea is to virtually add APs in the existing indoor Wi-Fi system, this would mean additional virtually APs in the network. The experiments of the proposed algorithm shows the positive results when 2VAPs are used compared with only APs. A combination of 3APs and 2VAPs in the 3rd case had the lowest average error of 3.99 among its 4 scenarios.

Implementation of Indoor Location-Aware System based on Probability Distribution of RSSI (RSSI 확률분포를 사용한 실내 위치 인식 시스템의 구현)

  • Kim, Myung Gwan;Kim, Jin Woo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.8 no.4
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    • pp.9-14
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    • 2008
  • Ubiquitous implementation of indoor location-based technology is recognized that one of the important elements of the technology. Specifically, the hospital management of patients, the silver-town management, the implementation of the smart home for the indoors rather than outdoors in a range of broadband users for location-aware technology is needed. This paper in wireless devices with an indoor location awareness shows about the system's technical design and implementation. Location-based technology for wireless LAN users aware of the strength of radio signals (Received Signal Strength Indication, RSSI) using trilateration. Topographic mapping system will be implemented wireless devices and servers, Access Point (AP), which is the system's development and testing throughout the physical environment to determine the potential for real-life applications.

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A Study on the Indoor/Outdoor Positioning System Based on Multiple Sensors (다중 센서 기반의 실내외 측위 시스템에 관한 연구)

  • Hwang, Chi-Gon;Lee, Hae-Jun;Yoon, Chang-Pyo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2018.10a
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    • pp.643-644
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    • 2018
  • Recently indoor and outdoor location tracking systems are operated in different ways. The indoor positioning method uses WiFi and BLE beacon positioning, and the outdoor positioning uses GPS and PDR. In this paper, it is a device to measure position by using it. It is used to check whether it is indoors or outdoors when measuring based on a smart phone, A automatic conversion method is needed. When using GPS in the room, it is difficult to distinguish the floor or space. We propose a method to solve this problem.

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Cheking System using FingerPrint method (핑거프린트 기법을 이용한 출결 시스템)

  • Lee, SunMin;Kim, JiEun;Moon, Nammee
    • Proceedings of the Korea Information Processing Society Conference
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    • 2016.10a
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    • pp.129-130
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    • 2016
  • 실내 위치인식 기술인 핑거 프린트 기법을 이용해 출결을 확인함으로써 짧은 수업시간에 신속하고 정확하게 출석을 확인하는 것이 본 연구의 목적이다. 부정 출석을 막기 위해 핑거프린트를 이용한 실내 위치인식으로 학생들이 수업장소에 와있는지를 확인하고, 대리 출석을 막기 위해 출석확인을 하는 모바일기기의 고유 정보를 가져와 하나의 모바일 기기에서 한 번의 출석확인만 가능하도록 하였다. 또한 출석체크만 하고 수업을 빠져나가는 것을 방지하기 위해 수업 장소에 머무른 시간 또한 체크를 하였다. 향후 출석 시스템만이 아니라 출석 데이터로 출석이 성적에 미치는 영향 등 다양한 방면으로 활용될 수 있을 것이라 생각한다.

A Study on Visible Light Communication Indoor location of iGS Robot (가시광통신을 이용한 실내형 자율 주행 로봇의 위치 추정에 관한 연구)

  • Park, Ki-Hyun;Jo, Kyung-Hwa;Lee, Jang-Woo;Lee, Seung-Yup;Kim, Eung-Soo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2015.10a
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    • pp.377-378
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    • 2015
  • 실내형 자율 주행 로봇에서의 가장 중요한 기술력은 IGS(indoor GPS System)라 할 수 있다. 재난로봇이나 정찰로봇, 경계로봇등 새로운 로봇의 영역이 늘어남에 따라 실내에서 로봇을 안전하게 구동시키는 연구가 활발히 진행되고 있다. 기존 GPS를 사용할 수 없는 실내에서, LED 조명으로 통신이 가능한 가시광통신은 실내위치 정보를 정밀히 파악하기에 적합하다. 이에 가시광통신을 이용하여 LED 조명별 기준위치를 파악하는 서로 다른 16진수의 데이터를 전송하고, 그 위치를 파악하여 LED 조명의 위치를 식별할 수 있음을 확인한다. 이러한 실험결과를 통하여 가시광통신을 이용해 실내형 자율 주행 로봇의 실내 위치 추정 시스템을 제안한다.