• Title, Summary, Keyword: Bluetooth Low Energy

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Customer Preference Analysis System using Bluetooth Low Energy (저전력 블루투스를 사용한 사용자 성향 분석 시스템)

  • Nguyen, Hieu Trong;Park, Jisun;Xi, Yulong;Park, San;Jang, Hyeonjun;Hong, Sungbin;Kim, Junoh;Cho, Kyungeun
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1073-1074
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    • 2017
  • In this paper, we present a customer preference analysis system using the Bluetooth Low Energy technology. Compared to Classic Bluetooth, Bluetooth Low Energy provides considerably reduced power consumption, and cost, as well as some unique characteristics while maintaining a similar communication range. The customer preference analysis system collects nearby Bluetooth Low Energy devices using an Android mobile device via Bluetooth Low Energy. In addition, the system is capable of suggesting, and advertising products that are related to these Bluetooth Low Energy devices based on the name of their manufacturer. This feature aims to attract potential customers to purchase these products.

An Energy-Efficient Broadcast Method based on Nack Mechanism for Bluetooth Low Energy Environment (Bluetooth Low Energy 환경에서 에너지 효율을 위한 Nack 기반 Broadcast 전송 기법 연구)

  • Jung, Yeon-Seung;Son, Bong-Ki;Lee, Jae-Ho
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.457-459
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    • 2015
  • Bluetooth Low Energy 기술은 IoT 환경의 개인 영역 통신 시스템의 발달과 함께 저전력 근거리 통신 기술의 대표되는 기술로써 현재까지 에너지 효율을 우선시하여 개발되어 왔다. 하지만 홈 네트워크 환경이나 공공지역에서 서비스되는 음성안내 등의 환경에서 Bluetooth Low Energy 기술이 적용될 경우 Broadcast 형태의 음성 데이터 전달이 요구될 수 있으며, 이 경우 Bluetooth Low Energy를 포함한 대부분의 저전력 근거리 통신 기술에서는 Duty Cycle 등의 에너지 고효율 정책으로 인하여 Broadcast 데이터 수신에 대한 신뢰성이 보장되기 힘들기 때문에, 보편적으로 n-repetition 방식의 데이터 전달 방식을 적용하고 있다. 본 고에서는 이러한 n-repetition 방식의 데이터 전달에 대한 중복 송신에서 발생되는 에너지 소모를 개선시키고자 Nack 기반의 선택적 재전송 형태의 새로운 Broadcast 기법을 제안하며, 실험을 통하여 이에 대한 효율성을 검증하였다.

Energy-Efficient Voice Data Broadcast Method in Wireless Personal Area Networks for IoT (IoT-WPAN 환경에서 에너지 효율적 음성 데이터 Broadcast 기법)

  • Lee, Jaeho
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.11
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    • pp.2178-2187
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    • 2015
  • Bluetooth Low Energy (Bluetooth LE) is a representative break-through communication technology for wireless personal area networks on nowaday. In this environment, most of significant performance should be aiming to energy efficiency due to the policy for manufacturing light-weighted communication devices derived from requirement of world IoT market, and many researches have been developed to satisfy this requirement. While Bluetooth LE has been leading the low power communication technology required from the current market by employing duty cycle and frequency hopping approaches, it couldn't address the problem of reliability on broadcast transmissions. The main goal of this paper is aiming to addressing this problem by suggesting a new method. Furthermore analytic evaluations would also be proceeded to find objective results in the view point of broadcast transmission efficiency from Master device.

Emergency Rescue Request Notification Service Using Bluetooth Low Energy Technology (Bluetooth Low Energy 기술을 이용한 긴급구조요청 알림서비스)

  • Kim, Sung-Jin;Cho, Kyoung-woo;Oh, Chang-Heon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.529-530
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    • 2016
  • When the mountain accident occurred, the accident victims should inform anyone of information of the location and accident situation rapidly. But if you are in the radio shadow area where you cannot use GPS, 3G/4G, and wireless communication, you can't inform someone your accidents. In this paper, we suggest the emergency rescue request notification service in situation that victims can't report their accidents. This service is to send request message for rescue in radio shadow area, in mountain accident, by BLE(Bluetooth Low Energy).

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Data Transmission Method using Broadcasting in Bluetooth Low Energy Environment (저전력 블루투스 환경에서 브로드캐스팅을 이용한 데이터전송 방법)

  • Jang, Rae-Young;Lee, Jae-Ung;Jung, Sung-Jae;Soh, Woo-Young
    • Journal of Digital Contents Society
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    • v.19 no.5
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    • pp.963-969
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    • 2018
  • Wi-Fi and Bluetooth technologies are perhaps the most prominent examples of wireless communication technologies used in the Internet of Things (IoT) environment. Compared to widely used Wi-Fi, Bluetooth technology has some flaws including 1:1 connection (one-way) between Master and Slave, slow transmission, and limited connection range; Bluetooth is mainly used for connecting audio devices. Since the release of Bluetooth Low Energy (BLE), some of the flaws of Bluetooth technology have been improved but it still failed to become a competitive alternative of Wi-Fi. This paper presents a method of data transmission through broadcasting in BLE and demonstrates its performance, one-to-many data transfer result. The Connection-Free Data Transmission proposed in this paper will hopefully be utilized in special circumstances requiring 1:N data transmission or disaster security network.

Indoor Zone Detection based on Bluetooth Low Energy (블루투스를 이용한 실내 영역 결정 방법)

  • Frisancho, Jorge;Lee, Jemin;Kim, Hyungshin
    • Proceedings of the Korean Society of Computer Information Conference
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    • pp.279-281
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    • 2015
  • Location awareness is an important capability for mobile-based indoor services. Those indoor services have motivated the implementation of methods that need high computational load cost and complex mechanisms for positioning prediction. These mechanisms, such as opportunistic sensing and machine learning, require more energy consumption to achieve accuracy. In this paper, we propose the Bluetooth Low Energy indoor zone detection (BLEIZOD) technique. This method exploits the concept of proximity zone to reduce the load cost and complexity. Our proposed method implements the received signal strength indicator (RSSI) function more effectively to gain accuracy and reduce energy consumption.

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Data acquisition and computation methods for improved location awareness in the indoor location system (실내 위치 시스템에서의 향상된 위치 인식을 위한 데이터 수집 및 연산 기법)

  • Yoon, Chang-Pyo;Hwang, Chi-Gon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.270-271
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    • 2015
  • Recently, There is Increasing interest in the intelligent services using the Internet of Things indoor positioning technologies that enable the communication of information between the objects. In particular Applications and demand for the indoor location based services using smart devices has made active. An indoor location positioning technology for this purpose BLE (Bluetooth Low Energy) has been a lot of interest in technology increases. If iBeacon of BLE(Bluetooth Low Energy) is made available to provide a signal for the indoor location information measurement then reliability of Indoor location information is lowered by signal interference. In this paper, Proposes a technique for data acquisition method for obtaining reliable position information and reliable position information calculation method from signal information data of iBeacon.

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Utilization and Optimized Implementation of Format Preserving Encryption Algorithm for IoT and BLE Communications (IoT와 BLE 통신상의 형태보존암호 활용 및 최적화 구현 기법)

  • Lim, Ji-hwan;Kwon, Hyuk-dong;Woo, Jae-min;An, Kyu-hwang;Kim, Do-young;Seo, Hwa-jeong
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.28 no.6
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    • pp.1371-1378
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    • 2018
  • Bluetooth is the key technology in the wireless connection of many Internet of Things (IoT) devices, especially focused on smartphones today. In addition, Bluetooth communication between the IoT device and the user is mainly performed via Bluetooth Low Energy (BLE), but as the Bluetooth technology gradually develops, the security vulnerability of the existing BLE is more prominent. Research on Bluetooth accessibility has been conducted steadily so far, but there is lack of research for data protection in Bluetooth communication. Therefore, in this paper, when sending and receiving data in BLE communication between IoT and users, we propose effective methods for communicating with each other through the Format Preserving Encryption Algorithm (FEA), not the plain text, and measures performance of FEA which is optimized in Arduino and PC.

A Study on Comparison of Control Methods in Wireless Power Transfer Systems (무선전력전송시스템 제어 기술 비교 연구)

  • Jang, Dong-won;Cho, In-Kwee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.113-116
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    • 2015
  • This paper presented about the system for controlling a wireless power transmission using bluetooth protocol. Bluetooth protocol has been applied in many fields that communicate with data and audio signal in short range. Recently, however, Bluetooth low energy(BLE) more simple than the existing protocol is standardized and is widely used in medical applications and consumer electronics that handle small amount of sensor data and transmit by the low power control signal. It has also been adopted as the standard for the control in the wireless power transfer system. In this paper, We analysed and described the bluetooth low energy protocol techniques for controlling the wireless power transfer system.

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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.