• Title/Summary/Keyword: Warning Function

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Implementation of Smart Control System based on Intelligent Dimming with LEDs

  • Lee, Geum-Boon
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.5
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    • pp.127-133
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    • 2016
  • In this paper, an intelligent dimming control system is designed and implemented with the human visual response function using CDS sensor, PIR sensor and temperature sensor, etc. The proposed system is designed to detect a moving object by PIR sensor and to control the LED dimming considering the human visual response. Also, the dimming of LED light can modulate on the app, and simultaneously control dimming in real-world environments with smart phone app. A high-temperature warning or a fire hazard information is transmitted to user's smart phone according to sensor values and Data graph are provided as part of data visualization. Connecting the hardware controller, the proposed intelligent smart dimming control system is expected to contribute to the power reduction interior LED, smart grid building and saving home combining with internet of things.

Sound Quality Issues in the High Efficient, Low Pollution Energy Vehicles (고효율, 저공해 에너지 이용 차량의 음질 이슈)

  • Ih, Jeong-Guon
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2014.04a
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    • pp.327-328
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    • 2014
  • In enhancing the technologies for the highly efficient and low pollution vehicles, the emitted sound by applying those techniques is degraded, which needs further vibro-acoustic tuning. The point of concern is usually related to the sound quality, and, sometimes, to the direct connection with the pedestrian safety. In this talk, a brief discussion is given to the sound quality issues on the start-stop function, cylinder-on-demand, engine down-sizing, turbo-chargers, road noise, and artificial warning sound.

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Development of Application for Preventing Smart-phone Syndrome (스마트폰 증후군 예방을 위한 애플리케이션 개발)

  • Byeon, Ji-Woon;Cho, Myeon-Gyun
    • IEMEK Journal of Embedded Systems and Applications
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    • v.10 no.1
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    • pp.7-12
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    • 2015
  • As smart phone became popular, its excessive uses cause adverse effects called smart-phone syndrome such as Turtle-neck syndrome in physical side and smart-phone addiction in mental aspects. Turtle-neck syndrome incurred by incorrect posture when you watch smart-phone, which causes a serious health problems. However, these syndromes can be detected by gyro-sensor and timer, and prevented by correcting the posture and halting the function with smart-phone application (App). Thus, this paper proposes App that helps user to realize bad posture and addiction to smart-phone, and to acquire the correct habit by inducing user to stretch neck or to stop operation with warning message. If we tried to adjust bad posture and addiction in using smart-phone through this application, the social losses from smart-phone syndrome would be minimized as a result.

The Development of Digital FHR Monitoring System Using PC and DSP (PC와 디지탈 신호 처리기를 이용한 디지탈 FHR 감시 장치의 개발)

  • Chung, Ji-H.;Kim, Sun-I.;Park, Moon-I.;Lee, Doo-S.
    • Proceedings of the KOSOMBE Conference
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    • v.1991 no.11
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    • pp.79-82
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    • 1991
  • Digital FHR monitoring system based on the personal computer combined wi th the digital signal processing (DSP) board was implemented. The DSP board acquires and digitally processes ultrasound fetal Doppler signal for digital rectification, envelope detection, autocorrealtion function calculation and its peak position detection. The personal computer interfaced with the DSP board is in charge of graphic display, hardcopy, data taransmission and on-line analysis of fetal heart rate change including on-line warning system, base-line estmation, acceleration, deceleration and variability. The advantages of PC-DSP based system can be summarized as follows: 1) Minimum hardware realization. 2) Increased flexibility. 3) Total care system.

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A Study on The Davelopement of Electronic Fetal Heart Rate Monitoring System Using Personal Computer (개인용 컴퓨터를 이용한 전자 태아심음 감시장치의 개발에 관한 연구)

  • 정지환;김선일
    • Journal of Biomedical Engineering Research
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    • v.12 no.3
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    • pp.209-214
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    • 1991
  • Digital fetal monitoring system based on the personal computer combined with the digital signal processing (DSP) board was implemented. The DSP board acquires and digitally processes ultra- sound fetal Doppler signal for digital signal conditioning, rectification, low -pass filtering, autocorrealtion function calculation and its peak detection. The personal computer interfaced with the DSP board is in charge of graphic display, hardcopy, data transmission and on -line analysis of fetal heart rate change including on - line warning system, base -line estmation, acceleration, deceleration and variability. It is one of the most suitable situation to apply the DSP chip for siganl conditioning, digital filtering of ultrasound fetal Dopier signal and fetal heart rate estimation using autocorrelation technique .

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Design of Emergency Fire Fighting and Inspection Robot Riding on Highway Guardrail

  • Ma, Xiaotong;Li, Xiaochen;Liu, Yanqiu;Tao, Xueheng
    • Journal of Korea Multimedia Society
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    • v.25 no.6
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    • pp.833-843
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    • 2022
  • Based on the problems of untimely Expressway fire rescue and backward traditional fire rescue methods, an emergency fire fighting and inspection robot riding on expressway guardrail is designed. The overall mechanical structure design of emergency fire fighting and inspection robot riding on expressway guardrail is completed by using three-dimensional design software. The target fire detection is realized by using the target detection algorithm of Yolov5; By selecting a variety of sensors and using the control method of multi algorithm fusion, the basic function of robot on duty early warning is realized, and it has the ability of intelligent fire extinguishing. The BMS battery charging and discharging system is used to detect the real-time power of the robot. The design of the expressway emergency fire fighting and inspection robot provides a new technical means for the development of emergency fire fighting equipment, and improves the reliability and efficiency of expressway emergency fire fighting.

Expansion of ATSC 3.0-Based Disaster Broadcasting Service for the Visually and Hearing Impaired

  • Song, Chong-Hyun
    • Journal of Multimedia Information System
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    • v.9 no.3
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    • pp.227-232
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    • 2022
  • Disasters are now becoming commonplace and especially the vulnerable group such as the disabled, the elderly, children and foreigners are in a state of overlapping disasters. In this situation, ATSC 3.0-based UHDTV disaster information service for the visually and hearing impaired has been developing. This study focuses on the demand data collected through in-depth interview with the impaired. The demand analysis data is very important to development process of technology. The results of the interview show that it is essential to link the UHDTV disaster signals with home-network, IoT, wearable devices, and various assistive devices for the impaired (hearing aid, smart light bulbs, warning light, etc.). In outdoor space, UHDTV disaster information must be connected to public display media, digital signage, kiosk, screens in bus or taxi. If communication aids for the visually and hearing impaired are equipped with a function that can transmit and receive disaster information, it will help to minimize disaster damage.

A Study on Development Strategies of the Korean Fisheries Outlook Project based on AHP (AHP 기법을 이용한 우리나라 수산업관측사업의 추진방향에 관한 연구)

  • Nam, Jong-Oh;Nho, Seung-Guk
    • The Journal of Fisheries Business Administration
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    • v.41 no.1
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    • pp.25-52
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    • 2010
  • The purpose of this paper is to suggest major strategies and necessary new projects for the medium- and long-term development of the Korean Fisheries Outlook Project. To suggest the Korean Fisheries Outlook Center with the above purpose, this paper employs Analytic Hierarchy Process analysis based on surveys obtained by special groups related with the KFOP. The survey is broadly composed of two goals; the medium- and long-term development directions and setting up of new furtherance projects. Each goal has upper and lower strategies respectively. The first goal, the medium- and long-term development directions, has four factors as upper strategies. The upper strategies are composed of accuracy, efficiency, timeliness, and political effectiveness of the fisheries outlook information. In addition, each upper strategy has three lower strategies respectively. For example, accuracy of the fisheries outlook information includes strength of data collection function, strength of satellite photography function, and strength of data analysis function. The second goal, setting up of new furtherance projects, has three factors as upper strategies. The upper strategies consist of accuracy promotion of outlook information using high-technique, field expansion of outlook species, and strength of analyzing function on oversea fisheries information. Each upper strategy has three lower strategies respectively. For instant, accuracy promotion of outlook information using high-technique has strength of information analysis function covered from production to consumption, strength of satellite information function, and structure of forecasting model on demand and supply by outlook species. The above upper and lower strategies were analytically drawn out through insightful interviews with special groups such as officials of the government, presidents of the producer and distributor groups, and researchers of the Korea Maritime Institute and other research institutes. As a result of AHP analysis, first, priorities of upper strategies with the medium- and long-term development directions are analyzed as accuracy, timeliness, political effectiveness, and efficiency in order. Also, priorities of all lower strategies reflecting priorities of upper strategies are examined as includes strength of data collection function on the fisheries outlook information, delivery of rapid information on outlook products for all people interested, strength of data analysis function on fisheries outlook information, strength of consumption outlook function on fish products, and strength of early warning system for domestic fish products in order. Second, priorities of upper strategies with the setting up of new furtherance projects are analyzed as accuracy promotion of outlook information using high-technique, field expansion of outlook species, and strength of analysis function on oversea fisheries information in order. In addition, priorities of all lower strategies reflecting priorities of upper strategies are examined as building up of forecasting model on demand and supply by outlook species, strength of information analysis function covering all steps from production to consumption, expansion of consumption outlook for consumers, strength of movement analysis function of oversea farming industry, and outlook expansion of farming species.

Development of Embedded Lane Detection Image Processing Algorithm for Car Black Box (차량용 블랙박스를 위한 임베디드 차선감지 영상처리 알고리즘 개발)

  • Yi, Soo-Yeong;Ryu, Ji-Hyoung;Lee, Chang-Goo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.8
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    • pp.2942-2950
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    • 2010
  • Car black box helps to investigate the cause of accident by recording time, position and videos as well as shock information. In addition, the car black box need a function to support safe driving for preventing accident. The representative driving support function is a lane departure warning. In order to implement the function, it is necessary to carry out the image processing to detect the lane first. The image processing algorithm requires computational burden to handle so much data and complicated structure of algorithm. This paper describes the efficient image processing algorithm with relatively low amount of computation for car black box embedded platform to detect lanes from the real-time lane image.

Parameter Calibration and Estimation for SSARR Model for Predicting Flood Hydrograph in Miho Stream (미호천유역 홍수모의 예측을 위한 SSARR 모형의 매개변수 보정 및 추정)

  • Lee, Myungjin;Kim, Bumjun;Kim, Jongsung;Kim, Duckhwan;Lee, Dong ryul;Kim, Hung Soo
    • Journal of Wetlands Research
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    • v.19 no.4
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    • pp.423-432
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    • 2017
  • This study used SSARR model to predict the flood hydrograph for the Miho stream in the Geum river basin. First, we performed the sensitivity analysis on the parameters of SSARR model to know the characteristics of the parameters and set the range. For the parameter calibration, optimization methods such as genetic algorithm, pattern search and SCE-UA were used. WSSR and SSR were applied as objective functions, and the results of optimization method and objective function were compared and analyzed. As a result of this study, flood prediction was most accurate when using pattern search as an optimization method and WSSR as an objective function. If the parameters are optimized based on the results of this study, it can be helpful for decision making such as flood prediction and flood warning.