• Title, Summary, Keyword: Bluetooth

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Routing Algorithm in Bluetooth Ad Hoc Networks of Mobile Hosts (Bluetooth Ad Hoc 망 모바일 호스트상의 라우팅 알고리즘 분석)

  • 이광재;김동현;최삼길;김동일
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.117-120
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    • 2002
  • Bluetooth uses baseband of 2.4G ISM and composes radio Ad Hoc network based on Ad Hoc wireless connectivity which it used low power and low complexity solution. Bluetooth designed as can play detect, connect, discover service by surrounding other device even if users do not get acquainted all to Bluetooth. This paper operate wish to recognize mobility to routing algorithm how communication method and radio network in Bluetooth.

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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.

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.

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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Implementation Of Moving Picture Transfer System Using Bluetooth (Bluetooth를 이용한 동영상 전송 시스템 구현)

  • 조경연;이승은;최종찬
    • Proceedings of the IEEK Conference
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    • pp.25-28
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    • 2001
  • In this paper we implement moving picture transfer system using bluetooth Development Kit (DK). To reduce the size of the image data, we use M-JPEG compression. We use bluetooth Synchronous Connection-Oriented (SCO) link to transfer voice data. Server receive image data from camera and compress the image data in M-JPEG format, and then transmit the image data to client using bluetooth Asynchronous connection-less (ACL) link. Client receive image data from bluetooth ACL link and decode the compressed image and then display the image to screen. Sever and Client can transmit and receive voice data simultaneously using bluetooth SCO link. In this paper bluetooth HCI commands and events generated by host controller to return the results of HCI commands are explained and the flow of bluetooth connection procedure is presented.

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Performance Analysis of WAP Packet Considering Multi-Slot SAR-QT Algorithm in Bluetooth Ad hoc Network (Bluetooth Ad hoc 망에서 멀티 슬롯 SAR-QT 알고리즘을 고려한 WAP 패킷의 성능 분석)

  • Moon, Il-Young;Roh, Jae-Sung;Cho, Sung-Joon
    • The Journal of Advanced Navigation Technology
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    • v.6 no.2
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    • pp.158-167
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    • 2002
  • In this paper, it is analyzed that WAP packet transmission time to improve performance of WAP using SAR-QT algorithm in Bluetooth channel. The order for SAR-QT algorithm to improve the transfer capability, it is fragmented in WTP total messages that are coming down from upper layer and then the packets are sent one at time in baseband. And it is studied that transmission time for WAP over Bluetooth according to DMI, DM3 or DM5 packet type using SAR-QT algorithm in Bluetooth piconet environment. This SAR-QT algorithm decreases WAP packet transmission time of L2CAP baseband packets by sending packet that are spanning multiple slots. From the results, in WAP over Bluetooth channels, it is found out that WTP packet size ought to be increased to decrease transmission time of WAP packet. In addition, considering BER in wireless channel, optimal WTP packet size is achieved for WAP over Bluetooth in a Rician fading environment.

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Design of a bluetooth-based interactive control network

  • Kwak, Jae-Hyuk;Lim, Joon-Hong
    • 제어로봇시스템학회:학술대회논문집
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    • pp.922-925
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    • 2004
  • Bluetooth technology is essentially a method for wireless connection of a diverse set of devices ranging from PDAs, mobile phone, notebook computers, to another equipments. The bluetooth system supports both point-to-point connection and point-to-multipoint connections. In point-to-multipoint connection, the channel is shared among several bluetooth devices. Two or more devices sharing the same channel form a piconet. There is one master device and up to seven active slave devices in a piconet. The radio operates in the unlicensed 2.45GHz ISM band. This allows users who travel world-wide to use bluetooth equipments anywhere. Since the link is based on frequency-hop spread spectrum, multiple channels can exist at the same time. The Bluetooth standard has been suggested that Bluetooth equipments can be used in the short-range, maximum 100 meters . It has been defined that the time takes to setup and establish a bluetooth connection among devices is 10 seconds. It is a long time and may be a cause to lose a chance of finding other non-fixed devices. We propose a routing protocols for scatternets which can be used to control a mobile units(MUs) in this network. The proposed routing protocol is composed of two kinds of bluetooth information, access point(AP) and MU.

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Bluetooth Network for Mobile System Control (이동 시스템 제어를 위한 블루투스 네트워크)

  • 임준홍;곽재혁
    • Journal of Institute of Control, Robotics and Systems
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    • v.10 no.11
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    • pp.1052-1057
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    • 2004
  • Bluetooth technology is essentially a method for wireless connectivity of a diverse set of devices ranging from PDAs, mobile phone, notebook computers, to another equipments, The bluetooth system both point-to point connection and point-to multipoint connection. In point-to multipoint connection, the channel is shared among several bluetooth devices. Two or more devices sharing the same channel form a piconet. There one master device and up to seven active slave devices in a piconet. The radio operates in the unlicensed 2.45GHz ISM band. This allows users who travel world-wide to use bluetooth equipments anywhere. Since the link is based on frequency-hop spread spectrum, multiple channels can exist at the same time. The bluetooth standard ha s been suggested that bluetooth equipments can be used in the short-range, maximum 100 meters. It has been defined that the time takes to setup and establish a bluetooth connection among devices is 10 seconds. It is a long time and may be a cause to lose a chance of finding other non-fixed devices. We propose a routing protocols for scatternets which can be used to control a mobile units(MUs) in this network. The proposed routing protocol is composed of two kinds of bluetooth information, access point(AP) and MU.

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.

An Emotion Transfer System Based on LED Using Bluetooth and ZigBee (Bluetooth와 Zigbee를 연동하는 LED 기반 감성전파장치)

  • Kang, Dong-Byeong;Ji, Sang-Hoon;Lee, Young-Dae;Bae, Sung-Han;Jeong, Gu-Min
    • The Journal of The Institute of Internet, Broadcasting and Communication
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    • v.11 no.6
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    • pp.163-168
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    • 2011
  • In this paper, we propose an emotion transfer system based on LED, which presents and transmitts users emotion through Bluetooth and ZigBee using LED light. We propose an emotional LED system interacting multiple LED lighting system and implement the proposed system using smartphone and WPAN network with Bluetooth and ZigBee. For the transmission of data, ZigBee is adopted for each LED lighting system and Bluetooth is utilized for the smartphone. Also, the LED lighting systems which are connected to smartphone have both ZigBee and Bluetooth module for the heterogeneous network. The implemented system shows the validity and applicability of the proposed system.