• Title/Summary/Keyword: Bluetooth

Search Result 1,531, Processing Time 0.025 seconds

Blackbox-Based a Vehicle Emergency Situation Detection and Notification System (블랙박스 기반의 차량용 응급상황 감지 및 통보시스템)

  • Kwon, Doo-Wy;Lee, Hoon-Jae;Park, Su-Hyun;Do, Kyeong-Hoon
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.14 no.11
    • /
    • pp.2423-2428
    • /
    • 2010
  • The number of motor vehicle registrations in Korea is increasing steadily each year, driven by industry development and economic growth. The number of traffic accidents is also rapidly increasing. Korea has a relatively high number of traffic accidents among OECD member countries, and it ranks among the highest in traffic accident death rates. This death rate is higher compared to death rates as a proportion of the number of traffic accidents in each country. It is very common for drivers to lose consciousness in traffic collisions, which leads to a failure to carry out early emergency measures. In order to prevent such situations as well as hit-and-runs and people left uncared for after traffic accidents, there is a need for motor vehicle black boxes and accident report systems. This study addressed the need for an emergency evacuation system for people injured in traffic accidents and a secondary traffic accident prevention system by developing a motor vehicle emergency situation detection and report system combined with a black box, and materializing it as an actual system.

Short-range Monitoring of Marine AtoN Charge and Discharge Controller (해상용 항로표지 충·방전조절기의 근거리 모니터링)

  • Ye, Seong-Hyeon;Han, Soonhee
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.19 no.4
    • /
    • pp.933-939
    • /
    • 2015
  • If the Visual Aids(light wave signs) is not supplied the general power it is using solar power system. These power supply systems, the role of the charge/discharge control is very important. Introduction of IT(AIS etc.) for the effective management of the AtoN(Aids to Navigation) is a Visual Aids has been added to the device using the power to charge/discharge control, the need increases. The current charge/discharge controller is attached to the inside of the AtoN and checks on and verification of the maritime environment, depending on the difficulty. In order to resolve these issues in this paper, the Bluetooth module is mounted on the inside of the charge/discharge controller and proposed a possible system monitoring at close range. Advantage of the system implemented is a simple configuration and low installation cost. In addition, it can be applied to a variety of AtoN. Also, it has been able to check the real-time status information of the charge/discharge controller at a short distance in to reduce inspection costs, and reduce risk factors that might occur during check.

A Study on Automatic Switch Control System for Systematic Control and History Management of Underground Utility Tunnel Work (지하공동구의 체계적인 통제 및 이력관리를 위한 자동개폐시스템에 대한 연구)

  • Oh, Am-suk
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.19 no.6
    • /
    • pp.1443-1448
    • /
    • 2015
  • Most of access control systems for underground utility tunnel work through wired network between central system and the automatic switch control unit. However, there are several issues regarding the absence of network infrastructure and an outdoor reader in a relatively unique environment. To solve these issues we propose an authenticated key based smart phone control system for secure access to the underground utility tunnel and this scheme is anticipated providing us with crucial information about a systemic entrance history and effective management procedures of utility tunnel. In addition, the proposed scheme enables to access to secured control system in smart phone based bluetooth network and it provides information about systemic control and history management for the switch controls through smart phone applications.

Validation Testing Tool for Light-Weight Stream Ciphers (경량 스트림 암호 구현 적합성 검증 도구)

  • Kang Ju-Sung;Shin Hyun Koo;Yi Okyeon;Hong Dowon
    • The KIPS Transactions:PartC
    • /
    • v.12C no.4 s.100
    • /
    • pp.495-502
    • /
    • 2005
  • Cryptographic algorithm testing is performed to ensure that a specific algorithm implementation is implemented correctly and functions correctly. CMVP(Cryptographic Module Validation Program) of NIST in US is the well-known testing system that validates cryptographic modules to Federal Information Processing Standards (FIPS). There is no FIPS-approved stream cipher, and CMVP doesn't involve its validation testing procedure. In this paper we provide validation systems for three currently used light-weight stream ciphers: Bluetooth encryption algorithm E0, 3GPP encryption algorithm A5/3, and RC4 used for WEP and SSL/TLS Protocols. Moreover we describe our validation tools implemented by JAVA programing.

A Study on Effective Management Method of the Flood Forecast System using PDA (PDA를 활용한 홍수예보시스템의 효율적 관리방안에 대한 연구)

  • Jung, Seung-Back;Yang, Seung-In
    • The KIPS Transactions:PartA
    • /
    • v.17A no.4
    • /
    • pp.197-202
    • /
    • 2010
  • The recorder at observatory can save the measured data from water gauge and rain gauge at an interval of five minutes. And then, the RTU (Remote Terminal Unit) in observatory sends the measured data in the recorder to the TM (Telemetering) in FCO (Flood Control Office) at an interval of ten minutes using VHF or satellite communication. But the transmitted data is not the stored data at the recorder, it is just data that is measured at an interval of ten minutes. In the FCO, the transmitted data is analyzed in order to forecast the flood. And also one of the most important things is the maintenance of an observatory. In this paper, an effective management system for the flood forecast is proposed. It uses the CDMA and the Blutooth technology on PDA. The proposed system is very portable, and also easily able to send the data stored at the recorder in observatory to TM in FCO without RTU. And it allows us to view remotely the data of other observatories by downloading from the FCO. Hence the system can do efficiently the maintenance of observatory without wasting manpower and time.

Optimization for Electro Deposition Process of PC/ABS Resin Surface Treatment (수지의 하전 입자빔 전처리 공정의 최적화)

  • Park, Young Sik;Shim, Ha-Mong;Na, Myung Hwan;Song, Ho-Chun;Yoon, Sanghoo;Jang, Keun Sam
    • The Korean Journal of Applied Statistics
    • /
    • v.27 no.4
    • /
    • pp.543-552
    • /
    • 2014
  • High bandwidth RF such as Bluetooth, GPRS, EDGE, 3GSM, HSDPA is papular in the mobile phone market. A non-conducting metal coating process requires an e-beam deposition of metal, two steps of UV hard coating primer and top coating; however, it is inefficient. We navigate to the electron beam irradiation conditions(resin surface treatment conditions) in the PC/ABS resin injection process. By analyzing the experimental results, we find the optimum development conditions for the electro deposition pre-treatment process and mass production lines using the plasma generated electron beam source.

Development and Clinical Evaluation of the Upper Extremity Rehabilitation Game Program for Patients with Upper Extremity Hemiplegia After Stroke Using Smartphone: Preliminary Study (스마트폰을 이용한 뇌졸중 후 상지 편마비 환자의 상지 게임재활훈련 프로그램 개발 및 임상적 유용성 평가에 대한 예비연구)

  • Lim, Hyunmi;Choi, Yoon-Hee;Paik, Nam-Jong;Ku, Jeonghun
    • Journal of Biomedical Engineering Research
    • /
    • v.36 no.5
    • /
    • pp.155-161
    • /
    • 2015
  • In the paper, we developed the mobile based rehabilitation system for patients with upper extremity hemiplegia after stroke and evaluated clinical usefulness and effectiveness of the system. The sensors built in the smartphone were used to track patients' upper limb motion and the movements was transferred to the tablet PC through bluetooth connection so that the game contents could be interact with the movements. The rehabilitation game contents was based on Brunnstrom stage(B-stage), and was designed to lead accurate movement of upper limb. For the clinical evaluation of the effectiveness, 11 patients were recruited and make them perform an exercise of their wrist, shoulder, and forearm using the system for two weeks. The change of upper limb motor function was measured using fugl-meyer assessment(FMA), Brunnstrom stage(B-stage). And the change of quality of life was measured using EuroQoL-5 Dimension(EQ-5D), Beck Depression Inventory(BDI). The results showed significant improvement in upper limb function but not in quality of life. We verified mobile based rehabilitation program could be useful and effective for the clinical use.

Steady-State Visual Evoked Potential (SSVEP)-based Rehabilitation Training System with Functional Electrical Stimulation (안정상태 시각유발전위 기반의 기능적 전기자극 재활훈련 시스템)

  • Sohn, R.H.;Son, J.;Hwang, H.J.;Im, C.H.;Kim, Y.H.
    • Journal of Biomedical Engineering Research
    • /
    • v.31 no.5
    • /
    • pp.359-364
    • /
    • 2010
  • The purpose of the brain-computer (machine) interface (BCI or BMI) is to provide a method for people with damaged sensory and motor functions to use their brain to control artificial devices and restore lost ability via the devices. Functional electrical stimulation (FES) is a method of applying low level electrical currents to the body to restore or to improve motor function. The purpose of this study was to develop a SSVEP-based BCI rehabilitation training system with FES for spinal cord injured individuals. Six electrodes were attached on the subjects' scalp ($PO_Z$, $PO_3$, $PO_4$, $O_z$, $O_1$ and $O_2$) according to the extended international 10-20 system, and reference electrodes placed at A1 and A2. EEG signals were recorded at the sampling rate of 256Hz with 10-bit resolution using a BIOPAC system. Fast Fourier transform(FFT) based spectrum estimation method was applied to control the rehabilitation system. FES control signals were digitized and transferred from PC to the microcontroller using Bluetooth communication. This study showed that a rehabilitation training system based on BCI technique could make successfully muscle movements, inducing electrical stimulation of forearm muscles in healthy volunteers.

A Study on the Development of Electric Signal Measuring Device Using a Smart Phone (스마트 폰을 이용한 전기신호 측정기 개발에 관한 연구)

  • Son, Young-Dal;Eun, Chang-Soo
    • The Journal of the Korea Contents Association
    • /
    • v.17 no.11
    • /
    • pp.9-17
    • /
    • 2017
  • In this paper, we propose a method to develop a multimeter which is used for measuring electric signals in industrial field by using battery and display of smart phone. Most of the multimeters that are linked to existing smartphones are connected to Bluetooth, which is inconvenient for battery use and low in measurement accuracy. To improve this, we developed smart multimeter that can supply power and data at the same time by USB OTG method which can be used by sharing the power of smartphone. We also developed a smart multimeter that can measure resistance, DC voltage, current, AC voltage and current. Developed an Android app with a button that displays measurement data and can select the type of electric signal to be measured, and tests whether the manufactured system is operating normally or not. Respectively.The results of this study confirm that it is possible to fabricate a smart meter that has equal or better performance compared to existing instruments and does not require a separate power source or display, and it is expected to be a reference for the development of various smart instruments in the future.

The Development of Cleaning and Monitoring System for Pipeline Type UV Sterilizer (관로형 UV 소독기를 위한 세척 및 모니터링 시스템 개발)

  • Park, Byeung-Jun;Ryu, Ji-Hyoung;Park, Jae-Byung
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.14 no.12
    • /
    • pp.6434-6440
    • /
    • 2013
  • In this paper, an integrated control system is proposed for automatic control and remote monitoring of pipeline type UV sterilizer. The proposed system can control the cleaning wiper in the sterilizer with various cleaning motions, and periodically check the contamination level of the UV lamps with the UV power sensors. Therefore, sterilizer repair and maintenance can be more effectively done. In addition, the control system based on the open-source processor can communicate with external smart devices via Bluetooth, and thus wirelessly exchange control commands and sensor data. Furthermore, the system is able to flexibly cope with changes of cleaning motions and sensors since its firmware can be wirelessly upgraded by using the smart device. Consequently, the proposed system is suitable to construct a smart sewage treatment system in small towns.