• 제목/요약/키워드: Microcomputer

Search Result 416, Processing Time 0.024 seconds

해외과학기술동향

  • 김명환
    • 전기의세계
    • /
    • v.31 no.10
    • /
    • pp.719-727
    • /
    • 1982
  • 마이크로 프로세서 구조를 설명하고 대표적인 8 bit microprocessor로서 Intel의 8085를 다룬다. 또한 Microcomputer System으로 쓸 수 있는 One-Chip-Processor를 토의한다.

  • PDF

Design of a Modular Microcomputer System (모듀울형 마이크로 컴퓨터 시스템의 설계)

  • 임제탁
    • Journal of the Korean Institute of Telematics and Electronics
    • /
    • v.15 no.1
    • /
    • pp.19-22
    • /
    • 1978
  • A modular microcomputer system based on the Intel 8080 microprocessor is designed. Each module communicate via common bus system. The different modules can be placed anywhere on the bus. Address for memory and I/O modules are determined by switch registers situated on the modules. The system is intended to be used as a base equipment for continuing study, expansion, development and for teaching students.

  • PDF

Development of Multi-Channel Cardiac Mapping System Using Microcomputer (마이크로 컴퓨터를 이용한 다중 채널 심장 전기도 시스템 개발)

  • Chang, Byung-Chul;Kim, Won-Ky;Kim, Nam-Hyun;Jung, Sung-Hun
    • Proceedings of the KOSOMBE Conference
    • /
    • v.1991 no.05
    • /
    • pp.94-97
    • /
    • 1991
  • It is well known that multipoint and computerized intraoperative mapping systems improve the results of surgery for Wolff-Parkinson-White syndrome and show tremendous potential for opening an entirely new era of surgical intervention for the more common and lethal types of supraventricular tachyarrhythmias such as atrial flutter and atrial fibrillation. In addition, the ability to map and ablate the sometimes fleeting automatic atrial tachycardia is greatly enhanced by computerized mapping systems. In this study, we have developed 16 channel computerized data analysis system using microcomputer for basic research of electrophysiology and electrical propagation. This system is expected to enable us to study pathophysiology of cardiac arrhythmia and to improve the results of diagnosis and surgical treatment for cardiac arrhythmia.

  • PDF

The Digital Position Control System for PM Step Motor Using Microcomputer (마이크로컴퓨터를 이용한 PM스텝모터의 디지탈 위치제어시스템)

  • 성원기;최종수;하용수
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.10 no.5
    • /
    • pp.229-239
    • /
    • 1985
  • This paper presents the digital position control system for PM step motor using microcomputer. An algorithm is developed not only for the reduction of a lorge number of logiccircuits of the existing positon control system but also for the substitution to software for logic functions. The program to sotisfy this algorithm is studied out, which is written into the EPROM to make up the digital position control system. The justfiability of the system is proved by experiment.

  • PDF

The Interactive Use of Microcomputer for Distance Learning

  • Hong, Sung-Ryong
    • Journal of Digital Contents Society
    • /
    • v.8 no.2
    • /
    • pp.121-127
    • /
    • 2007
  • For human beings, language is the most important means of communication. Bloom and Lahey see successful language development as an interaction between form, content, and use. Language knowledge is a social phenomenon produced in a socio-cultural environment through interaction. Teachers have traditionally concentrated on the structure of their student's writing rather than on the message. If writing is to be seen as an interactive social process between humans, it is the content which is responded to. Language acquisition could be a major problem for hearing-impaired children and their acquisition of written language is characteristically problematic. This study is to search the use of microcomputers in written conversational methods, which enable the hearing-impaired student to hear their conversations in a visual form and which usefully extend their written language learning opportunities.

  • PDF

Servo Drives State of the Art in Industrial Applications - A Survey

  • Kennel R.;Kobs G.;Weber R.
    • Proceedings of the KIPE Conference
    • /
    • 2001.10a
    • /
    • pp.321-325
    • /
    • 2001
  • Servo drives with microcomputer control provide the possibility of using modem and sophisticated control algorithms. As an additional feature it is possible to implement parallel and/or redundant software and hardware structures to realise safe motion or similar security functions. Unfortunately microcomputer control also has some impact on the behaviour of servo drives. Control algorithm, cycle time, sensors and interface have to be perfectly synchronised. Special control schemes are necessary on the line side (power supply) to meet the actual requirements concerning EMC. This contribution presents experiences and results obtained from a modem digital drive system pointing out the influences of low and high accuracy position sensors and the interdependencies mentioned above.

  • PDF

Cross Flow Filtration of Pichia stipitis by a Hollow Fiber Membrane (Hollow Fiber 막에 의한 Pichia stipitis의 Cross Flow여과)

  • Kim, H.;Chung, I. S.
    • KSBB Journal
    • /
    • v.4 no.1
    • /
    • pp.57-61
    • /
    • 1989
  • The feasibility of separating Pichia stipitis from a fermentation broth using a hollow fiber membrane was evaluated. The permeate flux was affected by such parameters as cell concentration, pH, content of antifoam agents, suction pressure, and recirculation rate. A minor effect of temperature on the flux loss was also observed. A microcomputer-aided backflush was proven effective in alleviating membrane fouling and allowing long term separation of P. stipitis from a fermentation broth.

  • PDF

Development of Floationg Seal Inspection System Using Line Scan Camera (라인스캔 카메라를 이용한 Floating Seal 시각 검사 시스템의 개발)

  • Park, Chang-Mok;Wang, Gi-Nam
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.16 no.12
    • /
    • pp.60-70
    • /
    • 1999
  • An efficient automatic inspection system for Floating Seal is developed, The proposed system consists of a high resolution line scan camera, microcomputer, and PLC (Programmable Logic Controller). In order to perform rapid inspection, The ROI (Region of Interest) is extracted from the original image. There are types of defects; shape defects and surface defects. Each features of defects are captured by edge detect, segmentation, morphological operation, and threshold analysis. PLC controller is used to synchronize the whole system and store the inspection results temporarily to reduce the overhead of microcomputer. As a result, the system is being utilized successfully in a teal inspection line.

  • PDF

Dynamic Mass-measurement control System of Acceleration and Displacement Sensing Type (가속도 변위 검출형 동적 질량 측정 제어 시스템)

  • Kim, B.S.
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.11 no.6
    • /
    • pp.109-116
    • /
    • 1994
  • Quickness and precision are the two most important requirements for an industrial scale used in production lines. In this paper, a new approach, "Dynamic-Mass measurement control System of Acceleration and Displacement(DMS-AD) sensing", is presented to improve some of drowbacks in conventional scales. The system, consisted of acceleration and displace- ment sensors, spring scale and microcomputer, is based on full utilization of dynamic mass measurement of acceleration and displacement via microcomputer-assisted real time monitoring. The rsulting system, when combined with appropriate dynamic mass estimation algorithm software, has shown its effectiveness in terms of two desirable characteristics required. required.

  • PDF