• 대한의용생체공학회:의공학회지
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• 제16권1호
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• pp.101-106
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• 1995

In this paper, the patient monitor consisting of ECG/Respiration Amplification, Front end CPU, Main CPU, Main Controller, Video Amplifier, Display Controller, Waveform Generator, Bus & Power Supply, 8097 Processor was developed. This patient monitor measures the patient's states in the hospital such as elecctro-cardiography, respiration, blood pressurae and temperature. The control and processing methods based on micro-processor employ the flexibility, extensibility over other conventional system. The followings are incorporated in this system. First, ECG/RESP measures the respiration by impedence pneumography. Second, FECPU utilizes an Intel 8031 microcontroller. Third, Controller function originate from a LSI CRT controller.

• 제어로봇시스템학회논문지
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• 제21권11호
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• pp.989-995
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• 2015

Due to the recent increase of the importance and demand of security services, the importance of a surveillance monitor system that makes an automatic security system possible is increasing. As the market for surveillance monitor systems is growing, price competitiveness is becoming important. As a result of this trend, surveillance monitor systems based on an embedded system are widely used. In this paper, an object detection algorithm based on an embedded system for a surveillance monitor system is introduced. To apply the object detection algorithm to the embedded system, the most important issue is the efficient use of resources, such as memory and processors. Therefore, designing an appropriate algorithm considering the limit of resources is required. The proposed algorithm uses two background models; therefore, the embedded system is designed to have two independent processors. One processor checks the sub-background models for if there are any changes with high update frequency, and another processor makes the main background model, which is used for object detection. In this way, a background model will be made with images that have no objects to detect and improve the object detection performance. The object detection algorithm utilizes one-dimensional histogram distribution, which makes the detection faster. The proposed object detection algorithm works fast and accurately even in a low-priced embedded system.

• 대한의용생체공학회:의공학회지
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• 제10권3호
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• pp.309-316
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• 1989

In this paper, the patient monitor consisting of amplifier, scan converter, A/D converter, CRT amplifier, and micro-controller part was developed. This patient monitor measures the patient's 4 states in the hospital such as electro-cardiography, respiration, blood pressure, and temperature. The control and processing methods based on micro-processor employ the flexibility, extensibility and economy over other conventional system. The followings are incorporated in this system. First, record the heart rate trends for 1 and 4 hours respectively. Second, measures the respiration by impedance pneumography. Third, measures the blood pressure with auto-zero balance. Fourth, linesrize the temperatures by bridge method.

• 조명전기설비학회논문지
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• 제20권6호
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• pp.104-110
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• 2006

본 논문에서는 인텔사의 StrongARM 프로세서에 내장형 리눅스 운영 시스템을 실장하여 내장형 웹 서버를 구현하고 ARM프로세서에 연결된 병렬포트의 입 출력을 HTTP 프로토콜을 이용하여 범용 웹 브라우저에 의하여 제어하는 초소형 웹 서버 시스템을 구현함을 다루었다. 이를 위하여 리눅스 운영 시스템의 HTTP를 실장하고 CGI에 의한 병렬포트 제어 프로그램을 구현하여 프로세서 보드의 메모리에 실장한다. 프로세서의 병렬포트에 입 출력을 제어하는 하드웨어 기능을 웹 서버와 브라우저를 이용하여 원격에서 제어할 수 있도록 구현하고 실험을 통하여 내장형 웹 서버의 구현을 보였다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.425-427
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• 2004

Many of the problems by using the microscope are related to the fact that the eyes of the surgeon must be continually fixed to the microscope eyepieces. In this paper, we describe a development of the stereoscopic monitoring system of the stereo microscope for reduced eyestrain or operator fatigue about the long time observations of the microscope. The system consists of the stereoscopic camera part, the stereoscopic image processor device and the polarized light stereoscopic monitor. The left and right images obtained form the two CCD cameras are the same as the eyepiece images. By use of the image processor, the polarized light stereoscopic monitor displayed a real-time stereo microscope images.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 추계학술대회
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• pp.315-318
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• 1997

The ECG-NIBP patient monitor consist of Noninvasive Blood Pressure(NIBP) module that have micro controller inside. This module transfer data by serial communication to the main processor. This system apply the fuzzy inflating method to reduce the blood pressure measuring time, and moving artifact removing algorithm, several parameters used or more accurate measurement. The ECG monitor use the Digital Signal Processor(DSP) or digital filtering, peak detection, heart rate calculation. This system also offer convenient user interface by rotary key, menu bar. With 7" CRT display, auxiliary TFT LCD display adapted to display information on wide screen.

• 한국항공우주학회지
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• 제38권8호
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• pp.781-789
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• 2010

GPS/INS 통합시스템의 고장검출에는 카이제곱 분포 기반의 알고리즘이 일반적으로 사용된다. 본 논문에서는 기존의 RAIM (Receiver Autonomous Integrity Monitor)과 카이제곱 분포 기반의 알고리즘을 결합하여 무인기용 저급 프로세서에 적용하기 위해 단순화시킨 GPS/INS 고장검출 알고리즘을 제안한다. 제안한 알고리즘의 검증을 위해 고장모델을 사용하여 그 결과를 나타내었다.

• 한국위성정보통신학회논문지
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• 제9권4호
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• pp.97-103
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• 2014

위성탑재컴퓨터의 정상동작을 검증하기 위해 프로세서의 모니터링 및 디버깅은 필수적이며, 현재 Aeroflex Gaisler의 GRMON을 사용하고 있다. GRMON은 LEON 프로세서를 모니터링 및 디버깅하기 위한 다양한 기능을 제공하지만, 국내에서 제작한 위성탑재 컴퓨터에 사용할 수 없는 기능이 많기 때문에 가격 대비 성능이 낮다. 또한 LEON 프로세서의 DSU를 이용하면 모든 메모리맵에 접근이 가능하여 프로그램 실행 중 고장을 주입할 수 있음에도 불구하고, GRMON을 수정할 수 없기 때문에 그동안 위성탑재소프트웨어를 수정하여 하드웨어에 고장을 주입하는 방식을 사용하였다. 이런 고장주입 방법은 위성탑재소프트웨어의 형상을 변경하는 것이므로 고장에 따른 소프트웨어의 영향성을 정확히 판단할 수 없다. 이에 향후 저궤도 관측위성에 적용될 LEON2FT AT697F프로세서를 탑재한 차세대 위성탑재컴퓨터(NGSCB, Next Generation Spacecraft Control Board)에서 프로세서 디버깅을 위한 기본 기능을 제공하고, 실제 위성에 탑재되는 위성탑재소프트웨어와 동일한 환경에서 하드웨어 고장을 주입할 수 있는 시스템을 설계 및 구현하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1560-1565
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• 2007

A surveillance system is used many industrial places, and public places to monitor the present situation. Most of the existing surveillance system is composed of the monitors and a lot of cameras that are installed each place to be monitored. The system is usually using the CCTV, closed circuit television, system that is a passive surveillance system. Urban transit operation corporations use the passive surveillance system to monitor the situation of the passengers, and the status of the important facilities. However the officers or operators cannot monitor all of the situation or status constantly, and cannot respond to emergency. In this paper, we propose a sensor network-based intelligent surveillance system to solve these problems. The proposed system is composed of a lot of intelligent sensors that can determine the present status and integrated processor units to detect more precisely events using the information from the sensors. The sensors and the integrated processor are connected by communication network. The proposed system can be installed and used without a lot of change of the existing facilities such as the enormous communication bandwidth increase.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2005년도 추계종합학술대회
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• pp.1209-1212
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• 2005

By using x86 processor for office environment, an improved Network Display System is implemented in this paper. The Network Display System is developed based on the x86 processor, and the system contains ethernet controller that can be used internet by stand alone. The Windows CE.NET is adopted as an operating system, and TFT-LCD monitor system is embedded..