• 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.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.87-90
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• 2011

Smart Grid는 전기 공급자와 수요자를 이어주는 전기 네트워크를 설치하여, 전기기기와 IT기술이 융합된 형태로 사용자내에서 Bluetooth, Zigbee를 이용한 전기기기를 통제하는 효율적인 에너지 네트워크의 일종이다. 하지만 Bluetooth, Zigbee는 인증과 키관리 문제가 있어 보안의 문제가 일어날 수 있다. 본 논문에서는 스마트 그리드에서 사용될 전기IT기기를 응용하여 제어하는 Bluetooth, Zigbee의 인증과 키관리, 키 생성 프로토콜을 통한 보안성 문제를 연구한다. 또한 Bluetooth, Zigbee에 대한 키 생성 프로토콜을 연구한다. 본 연구는 Smart Grid 시스템의 보안성과 안전성을 강화하여 Smart Grid 기술 발전에 기여할 것이다.

• 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.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.873-875
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• 2014

In this paper, we propose the access control system based bluetooth using the MAC address of the smart device. Access control system that propose compares the smart device MAC address entry and exit and MAC address that is registered with the server. Depending on whether the match was compared, access control is performed. Result of the experiment, control of door is possible only by bluetooth pairing of the bluetooth module and smart device. Therefore, it does not require access to another tool.In addition, Action for access approval is omitted. Therefore, the access authorization procedure is simplified compared to existing access control systems, it is possible to improve the convenience.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.267-269
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• 2016

In this paper, we implement a Smart Mailbox using the Arduino and Bluetooth. Smart Mailbox alarm system was combining to the general mailbox. If a mail is arrived to the ultrasonic sensor mounted on the mailbox Smart Mailbox recognizes the mail and sends the smartphone data in real time through the Bluetooth module. Also it stores ultrasonic sensor data in Arduino when bluetooth communication is interrupted. Again it implemented a system for transferring the stored data when the bluetooth communication is made.

• 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.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.4
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• pp.149-154
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• 2020

This paper presented a design and a implementation of prototype model which is the smart diffuser device controlled by using Bluetooth technology in the smart phone. We used the ultrasonic waves oscillator so that the smart diffuser was able to spray oil into a device. The device was developed to find out the high brightness led colors switched during spraying the oil. By using the Li-Po battery of 40mAh capacity, we were able to design this portable device was prolonged available time to use and to solve the charging time problem. We realized the availability of prototype model which is using the Bluetooth Low Energy for operating the low power driving.

• Journal of Satellite, Information and Communications
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• v.12 no.1
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• pp.114-119
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• 2017

In this paper we present the search on HC-06 Bluetooth based driver module for emergency LED Multi-Directional Indicator. Nowadays, a growing trends in which electronic displays such as LED, LCD or plasma monitors are being installed in public places like bars, stores, entertainment areas, restaurants, lobbies, etc. In this paper, the study is curried out on efficiency of HC-06 Bluetooth module based controller driver that relates generally to the field of emergency signage management systems for displaying various indicator contents remotely on electronic displays in public and privates venues. It allows user smart devices interaction remotely with digital signage by providing content for displaying on at least one display in a venue. Depending on the emergency case, HC-06 Bluetooth based driver module proves the high efficiency as well as good performance of processing and communicating remotely the indicator based message that is displayed from a venue management control system by using smart devices. The system combines smart device that linked to HC-06 Bluetooth module with ATmega168/328 embedded micro controller which result by switching the displayer containing the digital signage indicator based message.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1231-1234
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• 2012

본 연구에서는 Mobile Smart Device와 Bluetooth 기반의 휴대용 센서 모듈을 이용하여 Bluetooth 기반의 USN을 구성하여 상시 건강 관리를 위한 데이터를 측정하고 건강 가이드를 제공하는 Lifestyle 측정 시스템을 설계, 구현하였다. 운동, 도보 등 상시 활동량을 측정하기 위해 3축 가속도 센서로 움직임을 측정하고 Bluetooth 통신을 통해 Mobile Smart Device로 측정 데이터를 전송할 수 있는 LSM(Lifestyle Sensor Module)과 전송된 측정 데이터를 Android Mobile Smart Device를 사용하여 상시 활동량 데이터를 저장, 처리하여 분석결과에 의한 건강 가이드를 제공하는 Android App을 설계 구현하였다. 활동량을 분석하기 위해 3축 가속도 센서로 측정한 2G, 4G, 8G, 16G 3축 데이터를 에너지 값으로 변경 후 임계값을 다양하게 변경하면서 에너지 값을 분석하여 최적의 임계값을 도출하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.578-580
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• 2013

Recently, personal mobile devices increased according to the rise of smart devices. Thus the all smart devices load with a bluetooth of standard specifications. However, it is deficiency to service using multiple connection of bluetooth device connection limit. Also bluetooth have other problem. bluetooth can't data communication until all device connection. In this paper, we proposed multi-connect algorithm based on TDM using AT command to overcome the problems above. As a result, it is confirmed that the real-time connectivity and data transmission between multiple devices is possible.