• Title, Summary, Keyword: Bluetooth

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A Overview of Bluetooth Technology Trends (블루투스 기술동향)

  • 여운동;김강회;이창환
    • Proceedings of the IEEK Conference
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    • pp.601-604
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    • 2003
  • Bluetooth is a cable replacement technology designed for short-range ad hoc connections, which most likely change the way we handle and access information in the near future. In this paper we give an overview of the Bluetooth technology and its ongoing trends to whoever has interests in Bluetooth, not only with the background of Bluetooth technology but also without it.

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A Performance Comparison of Bluetooth and IEEE 802.11 (Bluetooth와 IEEE 802.11의 성능비교)

  • 심기섭;김한규
    • Proceedings of the Korean Information Science Society Conference
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    • pp.226-228
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    • 2003
  • 무선통신과 관련된 대표적인 프로토콜로써 Bluetooth, IEEE 802.11, HomeRF등이 있다. 이러한 프로토콜들을 이용한 제품들이 생산되면서, 동일한 환경에서 어느 프로토콜이 더 적합한지를 결정할 필요가 있다. 본 논문에서는 Bluetooth와 IEEE 802.11의 표준을 기반으로 무선 노트북이나 이동전화에서의 성능을 평가하고 그 결과를 보여준다.

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BtPDR: Bluetooth and PDR-Based Indoor Fusion Localization Using Smartphones

  • Yao, Yingbiao;Bao, Qiaojing;Han, Qi;Yao, Ruili;Xu, Xiaorong;Yan, Junrong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.12 no.8
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    • pp.3657-3682
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    • 2018
  • This paper presents a Bluetooth and pedestrian dead reckoning (PDR)-based indoor fusion localization approach (BtPDR) using smartphones. A Bluetooth and PDR-based indoor fusion localization approach can localize the initial position of a smartphone with the received signal strength (RSS) of Bluetooth. While a smartphone is moving, BtPDR can track its position by fusing the localization results of PDR and Bluetooth RSS. In addition, BtPDR can adaptively modify the parameters of PDR. The contributions of BtPDR include: a Bluetooth RSS-based Probabilistic Voting (BRPV) localization mechanism, a probabilistic voting-based Bluetooth RSS and PDR fusion method, and a heuristic search approach for reducing the complexity of BRPV. The experiment results in a real scene show that the average positioning error is < 2m, which is considered adequate for indoor location-based service applications. Moreover, compared to the traditional PDR method, BtPDR improves the location accuracy by 42.6%, on average. Compared to state-of-the-art Wireless Local Area Network (WLAN) fingerprint + PDR-based fusion indoor localization approaches, BtPDR has better positioning accuracy and does not need the same offline workload as a fingerprint algorithm.

Implementation of bluetooth LAN Access Point for the wireless Local access (근거리 무선 제어를 위한 Bluetooth LAN Access Point 구현)

  • Lee, Byeong-Woong;Oh, Won-Geun;Yoe, Hyun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.6 no.5
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    • pp.676-683
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    • 2002
  • In this paper, LAN Access Point is realized by making out bluetooth protocol stack in Linux Kernel, porting Linux in an embeded system employed bluetooth module. Hardware for a general-purpose embeded system is designed and Linux Kernel is ported after deploying Bluetooth Module. Also, Boot loader for system booting and management is composed, and Kernel is modified to meet with the system. Finally, Ethernet devise driver is made out, and bluetooth protocol Stack and Lan Access Point are realized. The possibility of TCP/IP communication through LAN Access Point to PC employed Bluetooth module, which is considered as client, is evaluated. From the evaluation results, we can see that the performance in Telnet FTP, Web browsing through Bluetooth LAN Access Point is satisfactory.

Bluetooth Scatternet Formation Protocol for Ad hoc Networking (Ad hoc Networking을 위한 블루투스 스캐터넷 형성 프로토콜)

  • Lim, Chae-Gwin;Huh, Myung-Sun;Jeong, Gu-Min
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.33 no.4A
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    • pp.411-417
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    • 2008
  • This paper proposes BSFP (Bluetooth Scatternet Formation Protocol), which establishes a multi-hop bluetooth scatternet. BSFP independently operates on each bluetooth device, does not require any information on neighbor devices at the very beginning, and can establish a scatternet even though all the devices are spreaded beyond the bluetooth transmission range. BSFP is composed of the following three stages; 1) Init stage to investigate neighbor nodes, 2) Ready stage to establish a scatternet using gathered local information at each node, and 3) Complete stage to use the determined scatternet links. In BSFP, the scatternet formation time does not significantly affected by the number of bluetooth devices and a robust mobile ad hoc network is formed because BSFP formulates a scatternet with many adjacent links to neighbor devices.

Mobile Healthcare System Based on Bluetooth Medical Device

  • Kim, Jeong-Heon;Lee, Seung-Chul;Lee, Boon-Giin;Chung, Wan-Young
    • Journal of Sensor Science and Technology
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    • v.21 no.4
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    • pp.241-248
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    • 2012
  • Recently healthcare industry such as pharmaceutical, medical device and healthcare service technology is growing significantly. Mobile healthcare has attracted big attention due to IT convergence technology. Paradigm of healthcare has been changed from the 1st generation(communicable disease prevention) and the 2nd generation(treatment of disease due to extended life expectancy) to the 3rd generation(extended life expectancy due to prevention and control). In our study, we suggest the 3rd generation mobile healthcare system using Bluetooth based wearable ECG monitoring system and smart phone technology. The mobile healthcare system consists of wearable shirts with Bluetooth communication module, ECG sensor, battery, and mobile phone. The ECG data is obtained by a miniaturized sensor and the data is transferred to a mobile phone using Bluetooth communication. Then, user can monitor his/her own ECG signal on an application using Android in mobile phone. The Bluetooth communication device is used due to highly reliable data transmission property and the Bluetooth chip is embedded in every mobile phone. The wearable shirts with chest belt of Bluetooth ECG module is designed with a focus on convenience in the daily life of a wearer. The ECG signal evaluation software in Android based mobile phone is developed for the health check and the ECG signal variation is tested according to the activities of the wearer such as walking, climbing stairs, stand up and sit down, and so on.

Implementation of LED Dimming System Using Bluetooth and Smartphone (Bluetooth와 Smartphone을 이용한 LED 디밍 시스템 구현)

  • Yang, Woo-Seok;Kim, Hye-Myeong;Cho, Young-Seek;Park, Dae-Hee
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.28 no.1
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    • pp.64-68
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    • 2015
  • In this paper, LED lighting system is realized by using Bluetooth wireless communications and smartphones. A bluetooth module with a lighting control function is manufactured by miniaturizing a development board of TI company and the volume of LED dimming system as a whole is reduced. And a trial product is materialized by designing a hardware composed of the manufactured bluetooth module, LED down light equipped with degree warm white and cool white, and 2-channel LED driver; and LED dimming software. The materialized trial product is controled in terms of the brightness and color temperature of LED light source using an application of a smartphone. The experiment showed that the users can easily control the intensity of illumination of LED light source by using the scroll bar of the applications of smartphones. In addition, the color temperatures of both warm white and cool white can be controlled, and when the color temperature of the trial product using the manufactured bluetooth module is compared with that of a trial product of TI company, they show the same color temperatures.

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.

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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    • 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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    • 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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