• Title/Summary/Keyword: Beacon signal analysis

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Analysis system and radio measurements in picocell environment using an AP beacon signal (AP 비콘신호를 이용한 피코셀 환경에서의 전파측정 및 분석시스템)

  • Rho, Jungkyu;Kim, Younggi;Lee, Jinsoo;Cha, Jaesang
    • Journal of Satellite, Information and Communications
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    • v.9 no.3
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    • pp.70-73
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    • 2014
  • In this paper, we measure and analyze strength of Beacon signal in Picocell environment by using the frequency of WiFi of ISM band. It is displaying the value what measured by using a beacon signal measurement smartphone app in using AP area, on Google maps using the PC application. the data measured by using mapped GPS signal and RSSI of beacon signal, and convert this data to Position coordinates for Google map in PC. when use this system, we can understand and analyze changes of radio signal through location where installed AP.

Study on the Beacon Signal Characteristic for Efficiency Analysis of Indoor Positioning (실내 위치 측위 효율성 분석을 위한 비콘 신호 특성 연구)

  • Hyun, Mi-Jin;Kim, Bong-Hyun
    • Journal of the Korea Convergence Society
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    • v.9 no.11
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    • pp.1-7
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    • 2018
  • Recently, the activity area in the indoor space has been widening. Various types of service technologies have been developed and applied user location, tracking, spatial pattern analysis and environmental analysis in indoor space. BLE-based beacon is used for the service technology in the indoor space. Therefore, in this paper, we collected and analyzed signals for indoor positioning based on beacon. For this purpose, a module was designed to analyze the efficiency of indoor location measurement using beacon. Experimental results show that the accuracy of the measured data at close range is improved. Also, it was analyzed that the more accurate the position data is extracted without the obstacle in the indoor space.

A Study on Ontology-based Indoor Positioning Techniques using BLE Beacon (BLE Beacon을 이용한 온톨로지 기반의 실내 위치 지정 기법에 관한 연구)

  • Hwang, Chi-Gon;Yoon, Chang-Pyo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.05a
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    • pp.326-327
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    • 2016
  • A study on Ontology-based indoor positioning techniques using BLE Beacon. Recently BLE beacon has been widely used as a technique for measuring the indoor location. But it requires a filtering technique for the measurement of the correct position, and uses the most fixed beacon. It is not accurate that calculates the position information through the identification of the beacon signal. Therefore, filtering is important. So it takes a lot of time, position measurement and filtering. Thus, we is to measure the exact position at the indoor using a mobile beacon. The measured beacon signal is composed of an ontology for reuse in the same pattern. RSSI is measured the receiver is the distance of the beacon. And this value configure the location ontology to be normalized by the relationship analysis between the values. The ontology is a method for calculating the position information of the moving beacon. It may be detected fast and accurate indoor position information.

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Ontology-based Positioning Systems for Indoor LBS (온톨로지 기반의 실내 LBS를 위한 위치 추적 시스템)

  • Hwang, Chi-Gon;Yoon, Chang-Pyo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.20 no.6
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    • pp.1123-1128
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    • 2016
  • Recently BLE beacon has been widely used as a method for measuring the indoor location in the IoT Technique. But it requires a filtering technique for the measurement of the correct position. It is used the most fixed beacon. It is not accurate that calculates the position information through the identification of the beacon signal. Therefore, filtering is important. So it takes a lot of time, position measurement and filtering. Thus, we is to measure the exact position at the indoor using a mobile beacon. The measured beacon signal is composed of an ontology for reuse in the same pattern. RSSI is measured the receiver is the distance of the beacon. And this value configure the location ontology to be normalized by the relationship analysis between the values. The ontology is a method for calculating the position information of the moving beacon. It can detect fast and accurate indoor position information and provide the service.

Analysis of Received Signal Strength Index from Bluetooth Beacons to Develop Proximity Warning Systems for Underground Mines (지하광산용 근접경고시스템 개발을 위한 블루투스 비콘 신호의 수신 강도 분석)

  • Baek, Jieun;Suh, Jangwon;Choi, Yosoon
    • Journal of the Korean Society of Mineral and Energy Resources Engineers
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    • v.55 no.6
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    • pp.604-613
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    • 2018
  • In this study, we analyzed the variations in the received signal strength index (RSSI) measured from Bluetooth beacons based on the strength and propagation direction of Bluetooth low energy (BLE) signal. Using a smartphone, we performed field experiments to investigate RSSI variations in the BLE signal transmitted by non-directional and directional beacons in an amethyst mine. In case of non-directional beacons, as the distance between the Bluetooth beacon and smartphone decreased, the RSSI increases, whereas as the BLE signal strength increased, the RSSI average gradually increased. The mean value of RSSI measured from the directional beacons was changed without relation to the facing angle between the Bluetooth beacon and smartphone. The results of this study can be used as basic data for developing a Bluetooth beacon-based proximity warning system for underground mines.

Analysis of the Detection Time of Distress Signal for LEOSAR and MEOSAR Systems (LEOSAR 및 MEOSAR 시스템의 조난신호 탐지시간 해석)

  • Lim, Sang-Seok
    • Journal of Advanced Navigation Technology
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    • v.10 no.4
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    • pp.377-384
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    • 2006
  • In this paper the detection time of the distress signal for the satellite-based search and rescue (SAR) system is evaluated. Present LEOSAR system in operation employs a few Low-altitude Earth Orbit (LEO) satellites and hence provides poor and local coverage availability. This results in a considerably long waiting time for a distress beacon to be detected by a rescue mission control center. One can expect that the detection time of the distress signal will be significantly reduced if the proposed MEOSAR system, which is based on the Medium-altitude Earth Orbit (MEO) satellites, is implemented. Taking into account the influence of the obstacles on the beacon signal, simulations are carried out to evaluate the detection time of distress signals for the LEOSAR and MEOSAR systems and the corresponding results are analyzed.

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Analysis of Horizontal Positioning for WADGPS using MTSAT (MTSAT를 이용한 WADGPS의 수평위치 해석)

  • Yeu, Hoon;Kim, Jeok-Kyo;Lim, Soo-Bong;Lee, Yong-Wook
    • Journal of Korean Society for Geospatial Information Science
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    • v.14 no.3 s.37
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    • pp.71-77
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    • 2006
  • MSAS satellite is the geostationary satellite for realizing WADGPS that can get the position of moving object in a wide area receiving the correction signal created from a ground using satellite. In this study, we analyzed two different data. One is using the correction signal transmitted from MTSAT-2 satellite of MSAS and the other is receiving the data of DGPS using BEACON receiver. As we compared both data, we could get the conclusion that the position accuracy of both data is also can get up to the standard or the conventional real-time code DGPS. As a result, we can expect that if we use MTSAT-2 satellite and BEACON receiver together, we can apply them LBS part that require real-time data or the obtaining geospatial information that does not require high accuracy much regardless of topography.

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A Health Management Service with Beacon-Based Identification for Preventive Elderly Care

  • Li, Jian-Wei;Chang, Yi-Chun;Xu, Min-Xiong;Huang, De-Yao
    • Journal of Information Processing Systems
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    • v.16 no.3
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    • pp.648-662
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    • 2020
  • Bluetooth low energy (BLE) beacon is an actively push-to-broadcast electronic signal and can be used for object identification. This paper uses such beacon-based identification and Internet of Things (IoT) technologies for the elder health management service system to simplify the user interfaces and steps for preventive elder care. In the proposed system, an elder's family member, caregiver, or medical worker can conveniently and quickly record daily health management information. Besides, through the statistics and analysis of the data on the back end of the system, it is helpful for the elderly to refer to the data of daily care management and future management trends. Similarly, it is also an essential reference data for system maintenance and the new preventive health care services development.

Beacon Signal Strength Analysis for Efficient Indoor Positioning (효율적인 실내 위치 측위를 위한 비콘 신호세기 분석)

  • Hwang, Hyun-seo;Park, Jin-tae;Yun, Jun-soo;Phyo, Gyung-soo;Moon, Il-young;Lee, Jong-sung
    • Journal of Advanced Navigation Technology
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    • v.19 no.6
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    • pp.552-557
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    • 2015
  • Recent performed by recognizing a user's location, various services have been tailored focus on short-range wireless communication technology. A beacon in which is attracting attention as next-generation technology. Beacon is a terminal by utilizing the frequency of the non-audible area can not be bluetooth and human sending and receiving terminals and information, Apple recently iBeacon like a low-power Bluetooth (BLE; bluetooth low energy) based beacon showing a tendency to rise into the mainstream there. Services using a beacon is basically installs the terminal in a certain place indoor. It is characterized by providing the user the services to catch the user's position, even automatically take a separate action. Various types of location-based service provided by the target interior space began to attract attention. A variety of location-based services are provided in the interior space in order to be successfully deployed and provide guidance to the interior space, the movement route and the like are essentially required to build various types of information. In this paper, for efficient indoor positioning by varying the signal strength of the beacon in such areas were measured and analyzed.

Power Consumption Analysis of Sensor Node According to Beacon Signal Interval in IEEE 802.15.4 Wireless Star Sensor Network (IEEE 802.15.4 무선 스타 센서 네트워크에서 비콘 신호 주기에 따른 센서 노드 전력소모량 분석)

  • Yoo Young-Dae;Choi Jung-Han;Kim Nam
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.9B
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    • pp.811-820
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    • 2006
  • In this paper, The correlation of the power consumption of sensor node is analyzed according to the analyze parameter in IEEE 802.15.4 star sensor network. And It is studied the influence on analysis parameter. The power consumption of sensor network in transmission process and average transmission power consumption drives to numerical formula. And CSEM WiseNET system measurement value is used. As a simulation result, The power consumption of sensor node in star network consist of 10 sensor nodes is more than 20 % that in single network in average. When beacon signal interval is 0.1 second in all frequency bands, the power consumption of sensor node in up-link is more than 2.5 times that in down-link in average. When beacon signal interval is 1 second and the number of sensor nodes increases to 100 and sensing data increases to 100 byte, the power consumption of sensor node increases to 2.3 times. And The superior performance of 2.4 GHz frequency band has than 868/915 MHz frequency band up to $6{\sim}12$ times.