• Title/Summary/Keyword: bluetooth smart

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A Smart Lighting Management System with Satisfaction of User's Lighting Requirements (사용자 요구조도 만족 스마트 조명 관리시스템)

  • Shin, Dae-Sik;Kim, Hoon
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.27 no.6
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    • pp.1-8
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    • 2013
  • In this paper, we proposed a smart lighting management system controls the lighting efficiently to reduce energy consumption while satisfying user's lighting requirements. The proposed system considers the available daylight intensity and indoor light source to satisfy the lighting requirements of each user according to the work environment. In addition, for user convenience, we have developed different user interfaces for lighting control including local interface, and remote interface through internet or Bluetooth for personal computer as well as smart phones. The proposed system satisfies the lighting requirements of each user according to the corresponding work environment. The proposed smart lighting management system utilizes the lighting energy efficiently, and can be considered a significant contribution towards future green buildings.

Hearing aid application of feedback cancellation algorithm in frequency domain (주파수 대역에서의 피드백 제거 알고리즘의 보청기 응용)

  • Jarng, Soon-Suck
    • The Journal of the Acoustical Society of Korea
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    • v.35 no.4
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    • pp.272-279
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    • 2016
  • In this paper, the realization of a hearing aid adaptively cancelling feedback noise was considered. Conventional least mean square method in time domain was transformed into frequency domain in order to minimize computational burden. The adaptive filter algorithm was evaluated by Matlab (Matrix laboratory), and it was confirmed by CSR 8675 Bluetooth DSP IC (Digital Signal Processor Integrated Circuit) chip firmware realization. Some remote control features by a smart phone was added to the smart hearing aid for user interface easiness.

Development of efficient smart library resource management system based on IoT (IoT 기반의 효율적인 스마트도서관 자원 관리 시스템 개발)

  • Lee, Joohwa;Lee, Myungsuk
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.15 no.2
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    • pp.1-9
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    • 2019
  • In this study, we constructed a system to operating and manage the resources of the Smart Library Reading Room automatically using the Internet of things. The persistent problem of smart library or unattended library is electric energy waste and efficient seat management. The electricity and seat layout management method of the existing library reading room is being treated as concentrated management in the central system. However, this approach results in wasting electricity and seats do not provide a fair opportunity for each user. In this study, IoT sensor was used to turn off electricity and empty seat for about 20 minutes, so that it could be marked as vacant and managed efficiently, so that opportunities for seats were evenly maintained. In the future, we will improve this and construct a model in the reading room of actual village library or school library, and analyze and reflect the result.

A Study on DID Implementation for Wireless Calling System using Smart-device (스마트 기기를 이용한 무선호출용 DID구현에 대한 연구)

  • Cho, Youngseok
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.11 no.1
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    • pp.19-25
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    • 2015
  • In this time, as an industrial society developed to a welfare society, more and more people want their quality of lives upgraded and specially customized service by mass production/mass consumption. And it leads to an increase of requiring service. There're active developments and studies on various IT equipment as the requirement made IT devices used in service. In this paper, we try to design and realize radio paging DID by using smart device to be used as a receiver of a radio pager which is broadly used at face to face service. Firstly, we used MCU to design and implement Wireless Calling Gateway which change radio calling signal of ISM band to smart device. A receiver of wireless caller used original receiver module. Also it used bluetooth module to communicate with smart device. It was possible to have satisfactory communication since radio paging signal converter and smart device were linked in 3M. Secondly, to indicate various paging information delivered from a radio pager, we realized DID application program by using Smart PAD. As a result, we could indicate various information compared to an original receiver which only could indicate letters or numeric data. Secondly, we implemented the DID app for wireless calls that can display a variety of information sent from a wireless pager. Was implemented using the Smart Pad. As a result, it is shown that can display a variety of information than the existing receiver.

Smart Parenting System using FFT (FFT를 활용한 스마트 양육 시스템)

  • Kim, Jun-Hoe;Lee, Jeong-Soo;Joo, Jeong-Woo;Bae, Ji-Su;Lee, Boong-Joo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.13 no.4
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    • pp.865-874
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    • 2018
  • This paper is about a smart pillow, and a smart diaper. The smart pillow analyzes the frequency of a baby's cry and applies its digital value to the band pass filter. If the crying is between 300-600Hz, the white noise comes out. The smart diaper alerts to the smart phone if the humidity outside the diaper is over 99%, or the temperature is over $29^{\circ}C$ after the defecation of the baby. The smart diaper also prevents choking of the baby by alert to smart phone if they are in a dangerous position by sensing the location of the infant.

A near control technology using high frequencies in audible frequency between smart devices

  • Chung, Myoungbeom
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.8
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    • pp.61-67
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    • 2015
  • The existing methods for control between smart devices in near used Bluetooth, WiFi-Direct, or socket communication using Wi-Fi. However, those have a problem that can not use when operating system of each smart devices is different or when socket server is not working. In this paper, we proposed a new near control technology using High frequencies in audible frequency between smart devices to supplement the problem of existing methods. High frequencies use micro-phone and speaker of smart device and are a control signals that is combined high frequencies within 18kHz ~ 22kHz among audible frequency range. The proposed technology using High frequencies do not need any extra communication modules or socket servers and can use the most smart devices without operating system of devices. To evaluate the performance of the proposed technology, we developed a music play and music control application applied the proposed technology and tested a control experiment using the developed applications. The control success rate was 97% and recognition rate of surrounding people about using high frequencies was under 5%. Therefore, the proposed technology will be the useful technology to control between smart devices in near.

Development and Utilization of Smart Festival Costumes for Korean Traditional Costumes and Chinese Traditional Costumes (한국과 중국의 전통복식을 이용한 스마트 축제의상의 개발 및 활용)

  • Kim, Hee-Sook;Ko, Jooyoung;Yi, Wang;Kim, Suhyun;Lim, Hyeong-Gyu
    • Journal of Korea Multimedia Society
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    • v.22 no.1
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    • pp.70-78
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    • 2019
  • The smart festival costume developed in this study maximizes the design elements by attaching electronic device to clothing, and uses voice, movement, and light sensor to utilize as expression elements. In addition, as a way to maximize cultural exchanges between Korea and China, smart festival costume was developed by applying smart clothing technology to the traditional costumes of both countries. and it was exhibited for 10 days at the 'Andong International Mask Dance Festival 2018'. The smart festival costume has the effect of multiplying the dynamism and excitement of the festival by the use of colorful lighting and it has been evaluated that the experience of wearing traditional costume of both countries contributes greatly to promote international cultural exchange. However, since smart clothing is inconvenient to wear due to the use of electronic products, meticulous research for consumer safety is required for practical use. Smart devices is expected to utilize for the development of traditional culture resources and the fashion industry in the future.

Using Genetic Algorithms for Effective Location Determination Method in the Positioning System (유전 알고리즘을 이용한 위치 시스템에서의 효과적인 실내 위치 측위 기법)

  • Yoon, Chang-Pyo;Hwang, Chi-Gon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.05a
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    • pp.241-243
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    • 2015
  • Recently, There is increasing interest in the IoT(Internet of Thing) as intelligent information service that enables communication between people and things based on internet. In particular the demand for indoor location-based services with the development of smart devices is rapidly increasing. If iBeacon of BLE(Bluetooth Low Energy) is made available to provide a basic signal for the indoor location information measurement then reliability of Indoor location information for unreliable signal data for a variety of reasons, such as signal interference is significantly lowered. In this paper, Proposes a technique for obtaining an effective and reliable location information via genetic operations in order to obtain reliable location information from the iBeacon signal information.

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Implementation of Low-Cost Baby Monitor for deaf and Visually Impaired Person (시각·청각장애인을 위한 저비용 베이비 모니터 구현)

  • Oh, Pa-Do;Kim, Hyeon-Hui;Lee, Boo-Hyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.10a
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    • pp.159-162
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    • 2015
  • In this paper, implement a baby monitor using the arduino for deaf and Visually Impaired. The proposed baby monitors are divided into measuring part & transmit part and linked with the application. The measuring part consists of a sound volume sensor, a transmit part consists of a bluetooth module. The measuring part and transmit part are controlled by the Arduino board. Measure the value of the sound by the sound sensor and delivers value to the arduino board. The measured value is sent to the application by the bluetooth module of transmit part. The application determines the received value and control the smart phone, and outputs the light from the sound and vibration for the value. It showed that the proposed baby monitor and an application is correctly operating in accordance with the value.

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A Reliable Indoor Positioning Techniques through iBeacon Signal Verification (iBeacon 신호 검증을 통한 신뢰성 있는 실내 측위 기법)

  • Shin, Hong-gi;Yoon, Chang-Pyo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.05a
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    • pp.352-354
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    • 2016
  • Recent with the progress of smart devices, there is an increasing demand for indoor location-based services. For this reason, research on indoor positioning system using a iBeacon techniques added to BLE(Bluetooth Low Energy) specifications of Bluetooth4.0 has been actively. However, RSSI signal used for the measurement of the distance between the iBeacon and the receiving terminal has the problems of inaccurate distance measurement to environmental factors such as obstacles. In this paper, we propose an implemented indoor positioning technique to use filtering technology enhance the reliability of the RSSI signal and the broadcasting signal of the terminal access point function.

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