• Title/Summary/Keyword: Bluetooth Communication

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The Study about the Bluetooth Communication

  • Song, Zhenghua;Shin, Hyun-Sik;Kim, Chun-Suk
    • The Journal of the Korea institute of electronic communication sciences
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    • v.2 no.3
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    • pp.180-184
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    • 2007
  • Bluetooth is a standard for short range, low power, low cost wireless communication that uses radio technology. This paper presents an overview of Bluetooth communication the following article will focus on the formation of Bluetooth scatter nets and some proposed scatter net models.

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A Design and Implementation of Control Application for Arduino Prime Smart Car

  • Park, Jin-Yang
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.11
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    • pp.59-64
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    • 2016
  • In this paper, we design and implement an Application based on android platform, which can control arduino Prime Smart Car using Bluetooth communication. This Application consist of Bluetooth communication module, manual mode module, and line-tracer mode module. In the Bluetooth communication module, it checks the on/off status of Smartphone Bluetooth. If Bluetooth status is off, it activates Bluetooth, selects the corresponding device from Bluetooth device list, and connects with a pair. In order to reduce coding time, we implements Bluetooth communication using inherited class from android Bluetooth package. In the manual mode module, it implements six direction moving button and stop button, which can control arduino Prime Smart Car. In the line-tracer mode module, it implements Prime Smart Car with self-driving function using TCRT5000 sensor. And moving button and stop button is disabled.

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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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.

Remote Measurement of the Automobile′s ECU Signals with KWP2000 using Bluetooth Module (Bluetooth 모듈을 이용한 KWP2000 차량 ECU신호의 원격 계측)

  • Choi Kwang-Hun;Kwon Tae-Kyu;Lee Seong-Cheol
    • Journal of the Korean Society for Precision Engineering
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    • v.21 no.10
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    • pp.86-93
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    • 2004
  • This paper presents the remote measurement of the ECU signals adopted with KWP 2000 protocol using the wireless communication technique of bluetooth. The bluetooth technology will be the most promising network paradigm which can open the new area in the information technology. Especially, bluetooth module is able to link all the electrical products and personal computers to cellular phone or PDA. This research has a try to design a wireless measurement model of ECU signal based on the car telemery system using bluetooth device. In order to measure the ECU signals, we designed the interface circuits which is able to communicate between the ECU system and the terminal circuits according to the ISO, SAE regulation of communication protocol standard. A microprocessor S3c341 OX is used for the system control and communication of ECU signals. The embedded system software is programmed to measure the ECU signals using the ARM compiler and ANCI C based on Micro/OS-II kernel to communicate between two bluetooth modules using bluetooth stack. The remote measurement of ECU signals using the bluetooth was designed and implemented to evaluate the performance of wireless network to the transmit measurement data. The possibility for the remote measurement of the self diagnosis signals of ECU adopted with KWP2000 protocol verified through the developed systems and algorithms in embedded system.

The Practical Application of Bluetooth Media Technology and Outlook for Development

  • Song, Zheng-Hua;Shin, Hyun-Sik;Kim, Chun-Suk;Shin, Yun-Ho
    • The Journal of the Korea institute of electronic communication sciences
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    • v.1 no.1
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    • pp.87-93
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    • 2006
  • This is paper, with the development of computer and network communications technology, the technology of digital computer and modern communications has integrated into the field of intelligent home appliances, making them intelligentize with the function of a network information terminal. The paper introduces the Bluetooth SIG(Special Interesting Group) and the development of the standard of the Bluetooth. Researches the application model and the practical application of the Bluetooth technology, and the component elements of the Bluetooth. Finally deals with the outlook for the development of the Bluetooth technology.

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Identification of Wi-Fi and Bluetooth Signals at the Same Frequency using Software Defined Radio

  • Do, Van An;Rana, Biswarup;Hong, Ic-Pyo
    • Journal of IKEEE
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    • v.25 no.2
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    • pp.252-260
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    • 2021
  • In this paper, a method of using Software Defined Radio (SDR) is proposed for improving the accuracy of identifying two kinds of signals as Wireless Fidelity (Wi-Fi) signal and Bluetooth signal at the same frequency band of 2.4 GHz based on the time-domain signal characteristic. An SDR device was set up for collecting transmitting signals from Wi-Fi access points (Wi-Fi) and mobile phones (Bluetooth). Different characteristics between Wi-Fi and Bluetooth signals were extracted from the measured result. The SDR device is programmed with a Wi-Fi and Bluetooth detection algorithm and a collision detection algorithm to detect and verify the Wi-Fi and Bluetooth signals based on collected IQ data. These methods are necessary for some applications like wireless communication optimization, Wi-Fi fingerprint localization, which helps to avoid interference and collision between two kinds of signals.

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.

Implementation of IoT using Raspberry Pi and Bluetooth Serial Communication (라즈베리파이와 블루투스 시리얼 통신을 활용한 IoT 구현)

  • Choi, Jun-hyeong;Choi, Byeong-yoon;Lee, Sung-jin
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.10a
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    • pp.202-204
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    • 2021
  • The Internet of Things (IoT) is a term first used by Kevin Ashton, director of MIT's Auto ID Center, in 1999, and refers to the connection of things to the Internet. Bluetooth, one of the wireless networks, is a technology developed as an industry standard for personal short-range wireless communication first developed by Ericsson in 1994. Since the Raspberry Pi has Bluetooth built-in, a wireless network is possible. This paper implements a module for the Internet of Things by implementing serial communication in the Bluetooth built-in Raspberry Pi 3 B+. There was a problem that Bluetooth communication was impossible between raspberries, so the discovery function was activated and serial communication was added to successfully link the communication.

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New multiple access technology for Bluetooth to collect the movement pattern of children (어린이 동선 환경정보 수집하기 위한 블루투스 동시접속 기술 설계)

  • Hwang, Seong-kyu
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.20 no.7
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    • pp.1262-1268
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    • 2016
  • Bluetooth has been developed to be applied over the course of several versions in different environments. Especially low is moving to address the constraints, it gives a high utilization rate is faster than the Zigbee wireless LAN communication. To gather information on children's environmental copper transition to multiple versions. There is one limitation of Bluetooth requirements to effectively apply the information collected by Bluetooth. At the same time need to collect several information actions, Bluetooth can not connect to one of only seven Slave Master. In this paper, in order to take advantage of the many benefits of Bluetooth to gather the information by operating the Bluetooth operates in Beacon deliver packets of 168 bits, and the pairing between the master and slave unnecessarily generate a regular signal a large number of connections simultaneously Information We consider how to apply the effective policy that can be collected.