• Title/Summary/Keyword: Bluetooth

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Analysis of Features and Applications of Bluetooth Beacon Technology for Utilization in the Mining and Construction Industries (블루투스 비콘 기술의 광업 및 건설 분야 활용을 위한 특징과 적용사례 분석)

  • Jung, Jihoo;Baek, Jieun;Choi, Yosoon
    • Tunnel and Underground Space
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    • v.26 no.3
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    • pp.143-153
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    • 2016
  • This study analyzed the features and various applications of Bluetooth beacon technology for utilization in the mining and construction industries. Through a literature survey, the concept and version-specific features of Bluetooth were reviewed, and representative types of the Bluetooth beacon-based service and its real-world applications in other fields were analyzed. Although a few previous studies that used the Bluetooth Classic (the old version of Bluetooth technology) in the mining industry have been reported, no mine site could be found where the Bluetooth beacon technology was utilized. In the construction industry, this study could find a site where the Bluetooth beacon technology was used to improve the haulage works of construction raw materials. Since the Bluetooth beacon technology has low power consumption and is easy to integrate with smartphones, it will be effectively utilized to improve the productivity and safety in the mining and construction industries.

NBAS: NFT-based Bluetooth Device Authentication System (NBAS: NFT를 활용한 블루투스 장치 인증시스템)

  • Hwang, Seong-Uk;Son, Sung-Moo;Chung, Sung-Wook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.26 no.5
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    • pp.793-801
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    • 2022
  • Most Bluetooth devices are commonly used in various ways these days, but they can be often lost due to small-size devices. However, most Bluetooth protocol do not provide authentication functions to legitimate owners, and thus someone who obtains the lost Bluetooth device can easily connect to their smart devices to use it. In this paper, we propose NBAS can authenticates legitimate owners using NFT on lossy Bluetooth devices.NBAS generates a digital wallet on the blockchain using the decentralized network Ethereum blockchain and facilitating the MAC address of the Bluetooth device in the digital wallet. The owner of the wallet uses a private key to certify the Bluetooth device using NFT. The initial pairing time of NBAS was 10.25 sec, but the reconnection time was 0.007 sec similar to the conventional method, and the pairing rejection time for unapproved users was 1.58 sec on average. Therefore, the proposed NBAS effectively shows the device authentication over the conventional Bluetooth.

Transmission of Image Information in Wireless System (무선 환경에서의 영상 정보의 전송)

  • Jeonh, Sang-Hoon;Lim, Joon-Hong
    • Proceedings of the KIEE Conference
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    • 2004.11c
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    • pp.268-270
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    • 2004
  • There are various researches on MPEG techniques. MPEG technique is used to digital TV(DTV) and internet image communication. Connection method between server and client is usually using wire. Applications may be expanded, if wireless technology is used between server and client system. In this paper, Bluetooth is used for connection method between server and client. Bluetooth offers fast and reliable transmissions of both voice and data over the globally available 2.4GHz ISM (Industrial, Scientific and Medical) band. One of the major application purposes of Bluetooth is the cable replacement for mobile and peripheral devices. Bluetooth has the advantage of small size, low power and low cost. It has the disadvantage of limited bandwidth and limited range. In order to transfer effectively image Information between server and client using Bluetooth, we apply MPEG-2 and MPEG-4 image compression techniques and the results are compared with each other.

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Advanced Indoor Zone Detection with Bluetooth and Ultrasound of Smartphone (스마트폰의 블루투스와 초음파를 이용한 향상된 실내 영역 결정)

  • Kwon, Jin-Se;Lee, Je-Min;Kim, Hyung-Shin
    • IEMEK Journal of Embedded Systems and Applications
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    • v.11 no.3
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    • pp.135-141
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    • 2016
  • Indoor zone-based services have continuously become popular by increased prevalence of smartphones. Bluetooth and ultrasound can be used for zone detection. However, bluetooth does not guarantee precise zone detection if the signal degrades due to the obstacles. Ultrasound can be easily forged by recording sound on the smartphone. For that reason, zone detection based on ultrasound has a security hole. To remedy each limitation, we propose an advanced zone detection method, that combines bluetooth and ultrasound. An authentication server issues a one-time password to the user over bluetooth. The user generates an ultrasound signal that encodes the password. In this manner, the proposed method ensures secure and accurate zone detection.

A Capacity Modeling of Bluetooth Access Points for Location Based Service with Mobile Phone and Bluetooth

  • Kim, In-Hwan;Shin, Soo Young;Song, Young-Ho;Chung, Ki-Dong;Jeong, Gu-Min
    • Journal of Electrical Engineering and Technology
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    • v.8 no.1
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    • pp.183-189
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    • 2013
  • In this paper, we propose a capacity modeling method for Bluetooth based LBSs (Location Based Services) between Bluetooth APs(Access Points) and mobile phones. In order to do this, we consider the entrance and exit of the users to and from the AP. Using parameters such as the connection time, data transmission time and number of users in the AP zone, we analyze the capacity of a Bluetooth AP using an appropriate queuing model. The required number of APs in a certain zone is estimated from the number of users in the zone using the proposed queuing model. By performing simulations and experiments, the validity and applicability of the proposed method are verified.

design of smart card used to bluetooth (Bluetooth를 이용한 스마트 카드 설계)

  • Oh, Se-Ho;Lee, Kyo-Sung;Lee, Yong-Jea;Choi, Hyun-Yung;Kim, Yang-Mo
    • Proceedings of the KIEE Conference
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    • 2002.07d
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    • pp.2580-2582
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    • 2002
  • Currently using of card sway the our community together with developing industry, whether it is credit card or not any type of card, people have the card in the wallet. But these cards have a little problem like ragne of communication, data store term, and so on. So we adopt the bluetooth. Bluetooth has been watched on local wireless communication among the wireless communication method. Bluetooth has ranged from 10m to 100m for communication and dissipated low power. Besides bluetooth has the communication speed faster than communication method of other smart card. In this paper we designed the smart card which is automatically accounted without any payment.

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Integration of WAP with Bluetooth for Controlling Home Appliances (WAP 과 Bluetooth의 결합을 통한 홈 기기 제어)

  • Ahn, Hye-Hwan;Youn, Hee-Yong;Ko, Jae-Jin;Jung, Hye-Dong
    • Proceedings of the Korea Information Processing Society Conference
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    • 2002.11b
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    • pp.1443-1446
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    • 2002
  • This paper proposes to integrate WAP(Wireless Application Protocol) with Bluetooth to implement a home automation system. One of the most important benefits of the proposed approach is the elimination of the problem of limited distance of Bluetooth as less than 10 meter. With WAP providing a data link between the Internet and a mobile phone and embedded WEB camera through Bluetooth, we can control various home appliances whenever and wherever we want. The hardware and software design issues for implementing such system are discussed and a pilot home automation system is implemented.

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A study on the identification system of an object using Bluetooth Scatternets (블루투스 스캐터넷을 이용한 물체 인식 시스템에 관한 연구)

  • Kang Tai-Kyu;Leem Sung-Soo;Kim Chul-Hwan;Lee Key-Sea
    • Proceedings of the KSR Conference
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    • 2003.10c
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    • pp.587-593
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    • 2003
  • There has been much interest in the Bluetooth technology since it could enable users to connect to a wide range of computing and telecommunication devices without the need to carry or connect cables. It delivers opportunities for rapid, ad-hoc connections, and in the future, could possibly enable automatic, unconscious, connections between devices. In this paper, we discussed a scatternet formation protocol for Bluetooth-based ad hoc networks and proposed the identification system of an object using Bluetooth Scatternets. Over the past few years, several studies have been made on the identification of an object by several RF(Radio Frequency) systems. But there are still some problems, the interference of signals as an example, for the identification of an object. The critical question is how to identify an object precisely without the interference of signals. This paper is an investigation of the Scatternet formation protocol for Bluetooth-based ad hoc networks and the identification system of an object using Bluetooth Scatternets composed of multiple Piconets.

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An Implementation of an Open Source Based H.264 Video Player for Bluetooth Input (블루투스 입력의 오픈 소스기반 H.264 비디오 플레이어의 구현)

  • Park, Taejun;cho, Tai-Hoon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.193-195
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    • 2009
  • Bluetooth is a popluar wireless data transmission method with low power consumption. In this paper, we present a open source based player of video stream encoded by H.264 codec, which is transmitted via Bluetooth. An open source JM is used for H.264 decoding and modified for reading H.264 encoded data via Bluetooth. For display of decoded video data, SDL was utilized.

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Attack Analysis of Bluetooth Electrical IT equipment in Smart Grid (Smart Grid에 사용된 Bluetooth 전기IT기기에 대한 공격 분석)

  • Song, Jin-Young;Park, Dea-Woo;Kim, Eung-Sik
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2011.06a
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    • pp.91-94
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    • 2011
  • Smart Grid에 사용되는 전기IT기기에서 Bluetooth의 보안 취약점이 발견되고 있다. 특히 전기안전을 위한 감시센서 정보전달을 맡고 있어서 위험성은 더욱 커진다. 본 논문은 Bluetooth가 탑재된 전기IT기기에 대한 Hacking Tool 분석을 실시하고, Bluetooth 취약점을 이용한 DoS, Sniffing공격 등 Tool 공격을 실행하고, Smart Grid와 U-IT 전기기기와 전력망에 대한 보안 방안 제시를 한다.

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