• Title, Summary, Keyword: Bluetooth

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Smart-clothes System for Realtime Privacy Monitoring on Smart-phones (스마트폰에서 실시간 개인 모니터링을 위한 스마트의류 시스템)

  • Park, Hyun-Moon;Jeon, Byung-Chan;Park, Won-Ki;Park, Soo-Hyun;Lee, Sung-Chul
    • Journal of Korea Multimedia Society
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    • v.16 no.8
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    • pp.962-971
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    • 2013
  • In this paper, we propose a method to infer the user's behavior and situation through collected data from multi-sensor equipped with a smart clothing and it was implemented as a smart-phone App. This smart-clothes is able to monitor wearer users' health condition and activity levels through the gyro, temp and acceleration sensor. Sensed vital signs are transmitted to a bluetooth-enabled smart-phone in the smart-clothes. Thus, users are able to have real time information about their user condition, including activities level on the smart-application. User context reasoning and behavior determine is very difficult using multi-sensor depending on the measured value of the sensor varies from environmental noise. So, the reasoning and the digital filter algorithms to determine user behavior reducing noise and are required. In this paper, we used Multi-black Filter and SVM processing behavior for 3-axis value as a representative value of one.

Radio Beacon-based Seamless Indoor and Outdoor Positioning for Personal Navigation Systems (개인 휴대용 네비게이션을 위한 라디오 비컨 기반 실내외 연속측위 시스템)

  • Kim, Sang-Kyoon;Jang, Yoon-Ho;Bae, Sang-Jun;Kwak, Kyung-Sup
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.8 no.4
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    • pp.84-92
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    • 2009
  • In this paper, using the received signal strength of radio beacon such as Wi-Fi, Bluetooth, CDMA and GPS signal from the satellite, we propose the system of positioning which considered indoor and outdoor based on the Place Lab. Conventional Place Lab utilize the various positioning parameters to estimate the indoor location. However, this conventional system has limitations with respect to the range and efficiency of usage. Therefore, we defined the converged model of multisensor data and re-organized the Place Lab to overcome the limitation of a conventional system. Proposed system uses the radio beacon signal and GPS signal together to estimate the location. Furthermore, it provides the seamless PNS service with many mobile devices because this system realized by the OSGi bundle. This proposed system has evaluated the performance with SAMSUNG T*OMNIA SCH-M490 smart phone and the result shows the system is able to support the PNS service.

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Implementation of Network-based Robot System to Guide a way (길안내를 위한 네트워크 기반 로봇 시스템 구현)

  • Kim, Hyung-Sun;Lee, Jun-Yeon;Lim, Jae-Hyun
    • Journal of Internet Computing and Services
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    • v.10 no.5
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    • pp.117-125
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    • 2009
  • Early in 21st century, researches about intelligent service robot that provide various services for a human out of the industrial robot only has simple pattern repetition. It concentrates in the research regarding the URC(Ubiquitous Robotic Companion) robot which connects the network in the intelligent service. This paper proposes the robot system based on network to guide a way. The robot has made by lego brick and used ultrasonic sensor, rotation sensor and RFID tag to recognize external environment. Also, it includes a PDA to process the data between robot and server. The network server transmits information to robot controller by bluetooth and it controls the course movement and evasion of the robot. In this research, the robot system based on network to guide a way is easy to expand service and is able to process a data in real time due to data processing in the server as a part of intelligent robot. And it can reduce the cost to build a robot thank to use cheaper sensor equipment.

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Development a Mobile Transportation Payment System of Used Smartcard (스마트카드를 이용한 모바일 교통결재 시스템 개발)

  • Lee, Sang-Bum;Jung, Hyun-Ho;Choi, Lee-Kwon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.2
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    • pp.171-179
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    • 2011
  • In these days, various wireless internet services are possible since the advanced wireless networks enable to transfer more data than before and smarter devices have developed to display the multimedia information more efficiently. Therefore, Korean MIPS such as SKT and LGT provide many kinds of advanced services such as wireless on-line shopping, mobile banking system and etc using 2.5 generation wireless network technology and smartcards. In a transportation system, a cellular phone can be used as a useful payment tool since most people always keep it and a mobile payment system has developed as infrastructure for wireless on-line services. In this paper, a mobile transportation payment system is introduced. A driver needs to pay a toll fee when he/she uses the highways. Recently, a high pass system has introduced, in which a vehicle can pass a toll gate without stopping to pay the fee to a counter. The payment is done automatically by an attached payment device. We have developed an advanced mobile system in which a smartcard embedded cellular phone is used as a payment device. The personnel and financial information is stored at a smartcard and the communication between the phone and OBU(On Board Unit) is done by Bluetooth.

Wrist Wearable Device for the Measurement and Analysis of Physiological Signals (생체신호 측정 및 분석을 위한 손목 착용형 단말기)

  • Im, Jae Joong;Li, Ming Kui;Hwang, Chan Song
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.12 no.6
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    • pp.65-73
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    • 2012
  • Wrist wearable device for the measurement of pulse rate, ECG, and activity during normal daily life, which could be used for the continuous monitoring and remote transmission of acquired data, was developed. Pressure sensor, device attached electrodes, and 3-degree accelerometer were used. Analysis algorithm and firmware program were established for providing diagnostic information for the users. Results of this study, possible for the management of health report and transmission of the results through bluetooth by wearing simple personal wrist device, could be used for the development of portable device in the u-healthcare environment.

Display System Design for Signifying the Received Signals of the Mobile Phone (휴대폰 착신 알림을 위한 모바일 디스플레이 시스템 설계)

  • Park, Jong-An;Chun, Jong-Hun;Kang, Sung-Kwan
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.6
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    • pp.289-294
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    • 2011
  • In this paper, we developed a phone call display system or "alimi" for displaying the received phone data at limited space that can not carry a mobile phone and and its validity was confirmed. It consists of a data communication application transmitting the phone data via bluetooth, a RF data repeater to extend the range of data communication, and a display system part for displaying the received phone data to the phone user. It has economy in terms of system installation because the implementation of the proposed system is simple and low cost installation is possible. As ordinary mobile phones users using the system can easily utilize it by downloading the application on the app. store, it has economy and convenience checking whether a call is received.

Bicycle Accident Position Tracing and Alarm System (자전거 사고 위치 추적 및 알림 시스템)

  • Kim, Jang-Won
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.14 no.6
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    • pp.93-98
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    • 2014
  • Bicycle accidents increase as the number of people riding bicycles increases following the trend try to enhance health and looking for alternative energy sources in the era of high oil price. In bicycle accident cases, physical risk is higher because the impact of the accident has a direct effect on the body of the rider. Therefore, the bicycle rider in an accident might unable to report the accident by themselves, thus, unable to quickly respond to the accident situation. This study developed a system for informing bicycle accidents upon bicycle accident by reporting and texting the accident location using a smart phone application after identifying the accident location using a GPS equipment based on the signal that senses the accident through the system installed in the bicycle for the purpose to improve bicycle riders' safety. This study confirmed the effectiveness of the system developed to quickly respond to the accident to prevent secondary damage through an experiment.

A TDMA-based Relay Protocol for Voice Communication on a Small Group (소규모 그룹에서의 음성 통신을 위한 TDMA 기반의 릴레이 프로토콜)

  • Hwang, Sangho;Park, Chang-Hyeon;Ahn, Byoungchul
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.13 no.1
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    • pp.259-266
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    • 2013
  • Since the wireless communications have a limited transmission, the devices just around a master node can exchange data. Though Bluetooth and Zigbee support ad hoc, they are not appropriate for real-time voice communications. In this paper, we present a TDMA-based relay protocol for several users to communicate simultaneously. The proposed protocol can relay data or voice to other nodes in real-time by the multi-hop transmission method using TDMA. And the proposed protocol improves the network performance by allocating different frequencies to the slaves depending on the routing path scheduled by the routing table. NS-2 simulation shows that the performance of the proposed protocol is good in terms of the transmission delay and pecket loss probability in the real-time voice transmission.

Ring-type Heart Rate Sensor and Monitoring system for Sensor Network Application (센서 네트워크 응용을 위한 반지형 맥박센서와 모니터링 시스템)

  • Jang, In-Hun;Sim, Kwee-Bo
    • Journal of the Korean Institute of Intelligent Systems
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    • v.17 no.5
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    • pp.619-625
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    • 2007
  • As low power, low cost wireless communication technology like Bluetooth, Zigbee, RFID has been put to practical use together with the wellbeing trend, the concern about ubiquitous health care has been greatly increased and u-Health is becoming one of the most important application in the sensor network field. Especially, development of the medical services to be able to cope with a state of emergency for solitary senior citizens and the aged in silver town is very meaningful itself and their needs are also expected to continuously increase with a rapid increase in an aging population. In this paper we demonstrate the feasibility of extracting accurate heart rate variability (HRV) measurements from photoelectric plethysmography(PPG) signals gathered by a ring type pulse oximeter sensor attached to the finger. For this, we made 2 types of ring sensor, that is reflective and pervious type, and developed the remote monitoring system which is able to collect HR data from ring sensor, analyze and cope with a state of emergency.

Development of Personal Hypertension Management System Using PDA (PDA를 이용한 개인 심혈관리 시스템 개발)

  • Kwon, Seok-Young;Kwon, Mann-Jun;Park, Kyoung-Soon;Chun, Myung-Geun;Cha, Eun-Jong
    • Journal of the Korean Institute of Intelligent Systems
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    • v.17 no.5
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    • pp.718-723
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    • 2007
  • In this paper, we developed a personal hypertension management system (PHMS) having self-diagnosis function with PDA. The developed PHMS consists of five modules such as a personal information management, a life management, a food management, a sickness management, and network management modules. The personal information management module offers physical and fatness information as well as personal information. The life management module gives exercise and body mass index. The food management module includes caloric intake and the sickness management module renders a personal blood pressure and a subjective symptom. Finally, wireless networks are implemented for the network management. From these, it is possible to make a self diagnosis and be examined and treated remotely by sending the stored blood pressure related information to a medical doctor.