• Title/Summary/Keyword: Supervisory control

Search Result 351, Processing Time 0.028 seconds

Development of automatic die bonder system for semiconductor parts assembly (반도체 소자용 자동 die bonding system의 개발)

  • 변증남;오상록;서일홍;유범재;안태영;김재옥
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1988.10a
    • /
    • pp.353-359
    • /
    • 1988
  • In this paper, the design and implementation of a multi-processor based die bonder machine for the semiconductor will be described. This is a final research results carried out for two years from June, 1986 to July, 1988. The mechanical system consists of three subsystems such as bonding head module, wafer feeding module, and lead frame feeding module. The overall control system consists of the following three subsystems each of which employs a 16 bit microprocessor MC 68000 : (i) supervisory control system, (ii) visual recognition / inspection system and (iii) the display system. Specifically, the supervisory control system supervises the whole sequence of die bonder machine, performs a self-diagnostics while it controls the bonding head module according to the prespecified bonding cycle. The vision system recognizes the die to inspect the die quality and deviation / orientation of a die with respect to a reference position, while it controls the wafer feeding module. Finally, the display system performs a character display, image display ans various error messages to communicate with operator. Lead frame feeding module is controlled by this subsystem. It is reported that the proposed control system were applied to an engineering sample and tested in real-time, and the results are sucessful as an engineering sample phase.

  • PDF

Development of Unified SCADA System Based on IEC61850 in Wave-Offshore Wind Hybrid Power Generation System (파력-해상풍력 복합발전시스템의 IEC61850기반 통합 SCADA시스템 개발)

  • Lee, Jae-Kyu;Lee, Sang-Yub;Kim, Tae-Hyoung;Ham, Kyung-Sun
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.65 no.5
    • /
    • pp.811-818
    • /
    • 2016
  • This paper suggests a structure of power control system in floating wave-offshore wind hybrid power generation system. We have developed an unified SCADA(Supervisory Control and Data Acquisition) system which can be used to monitor and control PCS(Power Conversion System) based on IEC61850. The SCADA system is essential to perform the algorithm like proportional distribution and data acquisition, monitoring, active power, reactive power control in hybrid power generation system. IEC61850 is an international standard for electrical substation automation systems. It was made to compensate the limitations of the legacy industrial protocols such as Modbus. In order to test the proposed SCADA system and algorithm, we have developed the wind-wave simulator based Modbus. We have designed a protocol conversion device based on real-time Linux for the communication between Modbus and IEC61850. In this study, SCADA system consists of four 3MW class wind turbines and twenty-four 100kW class wave force generator.

A supervisory control system for walking robot (보행 로보트를 위한 관리제어 시스템)

  • 권호열;이도남;변증남;임준홍
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1988.10a
    • /
    • pp.109-112
    • /
    • 1988
  • 다각 보행로보트를 효율적으로 운용하기 위한 총괄적인 관리제어 시스템이 설계되었다. 운영체제인 XINU를 시스템내의 프로세서간의 통신 및 작업 스케쥴링을 효휼적으로 하기위해 채용하였다. 보행로보트의 제어프로그램이 개발되었으며, 1각의 기구 모형에 대한 실험이 수행되었다.

  • PDF

The example of improvement and development for SCARA system operation in Korea Electric Power Corporation (전력회사의 원방 감시 제어 시스템의 운용 개선 사례)

  • 우희곤
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1986.10a
    • /
    • pp.164-168
    • /
    • 1986
  • This paper describes an overview of the remote Supervisory Control And Data Acquisition (SCADA) System for automatic operation of Electric power system in KEPCO. And the example of improvement and development for effective operation of the SCADA is reported briefly.

  • PDF

Decentralized Supervision with Coordinator of Discrete Event Systems (Coordinator를 이용한 이산사건시스템의 분산관리제어)

  • 김성규;임종태
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2000.10a
    • /
    • pp.35-35
    • /
    • 2000
  • In this paper, we introduce a conservative control approach using a full feedback map and suggest a switching control between the conservative and default control. For the conservative control, we use the coordinator which performs the conjunction operation of the full feedback map information of local supervisors. Since the switching control with the coordinator extends the ability of local supervisors in the decentralized supervisory control, we can solve the problem in case the coobservability condition can not be satisfied.

  • PDF

Fuzzy Control Through Singularity (특이성에 대한 퍼지 제어)

  • 이혜린;정정주
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2000.10a
    • /
    • pp.356-356
    • /
    • 2000
  • For irregular nonlinear systems, switching controlk form is proposed recently. This control law is designed to overcome the singularities through the scheme that switches between an approximate tracking law close to the singularities, and an exact tracking law away from the singularities. But, that form has problems which may break the system's stability through unstable control input value at switching procedure. In this paper, We propose new switching control law which supervises approximate tracking control law and exact tracking control law by fuzzy rules to overcome unstability problem in switching procedure.

  • PDF

A Study on Data Security Control Model of the Test System in Financial Institutions (금융기관의 테스트시스템 데이터 보안통제 모델 연구)

  • Choi, Yeong-Jin;Kim, Jeong-Hwan;Lee, Kyeong-Ho
    • Journal of the Korea Institute of Information Security & Cryptology
    • /
    • v.24 no.6
    • /
    • pp.1293-1308
    • /
    • 2014
  • The cause of privacy extrusion in credit card company at 2014 is usage of the original data in test system. By Electronic banking supervision regulations of the Financial Supervisory Service and Information Security business best practices of Finance information technology (IT) sector, the data to identify the customer in the test system should be used to convert. Following this guidelines, Financial firms use converted customer identificaion data by loading in test system. However, there is some risks that may be introduced unintentionally by user mistake or lack of administrative or technical security in the process of testing. also control and risk management processes for those risks did not studied. These situations are conducive to increasing the compliance violation possibility of supervisory institution. So in this paper, we present and prove the process to eliminate the compliance violation possibility of supervisory institution by controlling and managing the unidentified conversion customer identification data and check the effectiveness of the process.