• Title, Summary, Keyword: On-board controller

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Development of an Operating Software for a Model Plant using INTERBUSs (INTERBUSs를 이용한 모델 플랜트의 구동 소프트웨어의 개발)

  • Jo, Young-Ho;Jeong, Byung-Ho
    • IE interfaces
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    • v.12 no.4
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    • pp.575-585
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    • 1999
  • This study develops and operating software for a model plant. The model plant consists of an AS/RS system, two machining centers, an assembly line, and supplementary material handling equipments. Devices of each component are connected with the IBS RT24 DIO 16/16-T I/O module. Each I/O module communicates digital signals with the INTERBUS controller board via SUB-D 9 Connector cable. This study is a previous stage for developing an educational CIM software. Petri Nets is used for modelling the storage/retrieval of the AS/RS system, the flow of workpieces and the assembly line for parts. The operating software is coded with Microsoft Visual $C^{++}$ 5.0 and Interbus Library which is a software driver for the controller board. The operating software can be run on a MS Windows 95. Microsoft Access is used for the implementation of databases for BOM, AS/RS, and parts.

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Design of high speed data processing controller for the full color LED display board system (풀칼라 LED 전광판용 고속 데이터처리 제어장치 설계)

  • Ha, Young-Jae;Jin, Byung-Yun;Kim, Sun-Hyung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.2
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    • pp.462-468
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    • 2010
  • In this paper, the new efficient drive control technology based on the conventional full-color electric display board image processing method is proposed. This technology can be applied to high-fidelity large size panel TV and LCD Display, and makes high-fidelity-display-drive control possible in those. The proposed drive control technology can strengthen the image processing function of the conventional technology. Also, the automatic or manual adjustment of contrast, bright, tint, color, gamma revision, etc. can help to achieve high-fidelity vision. This technology can be adopted with lower price.

A study on implementation of beam forming system for LED communication using micro controller (마이크로 컨트롤러를 이용한 LED 통신의 선택적 빔 포밍 시스템 구현에 관한 연구)

  • Lee, JungHoon;Kim, Chan;Cha, Jaesang
    • Journal of Satellite, Information and Communications
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    • v.7 no.2
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    • pp.25-29
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    • 2012
  • In this paper, we implemented LED beam forming communication system controlled by stepping motor. ATMega1284 was used as a MCU of main control board which has two main external IO, one is RS232 for connection with PC, the other is PORT for connection with motor driving board. Stepping motor rotated 360 degree when provided 160 clock and its rotation radius was increased by Archimedian Spiral. So LED can provide its light anywhere in the space and its beam forming was controlled by PC connected with RS232 of main control board. The action of beam forming was verified via actual HW/SW implementation.

Development of On-board Computer Module for Formation Flying and Cluster Operation Nano-satellites (초소형 위성의 편대 및 군집 운용을 위한 모듈형 온보드 컴퓨터 개발)

  • Oh, Hyungjik;Kim, Do-hyun;Park, Ki-Yun;Lee, Ju-in;Jung, Insun;Lee, Seonghwan;Park, Jae-Pil
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.47 no.10
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    • pp.728-737
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    • 2019
  • In this study, the minimized on-board computer (OBC) module for integrated navigation is developed, which provides satellites' relative position information in formation flying and cluster operation situations. The scalability is considered to apply the user-selected wireless communication module and Global Positioning System (GPS) receiver for navigation, while considering to meet the structural design standard of nano-satellites. As a result of the product development and production, the processing speed of integrated navigation and real-time data synchronization is satisfied for cluster operation nano-satellites by using micro controller unit (MCU). From a heat/vacuum, vibration and radiation test, the OBC was confirmed to be operated in space environments. From these results, a mass production system of OBC was made which is a key part of development on satellite formation flying and cluster/constellation missions that the community demands are increasing.

Engineering Model Design and Implementation of STSAT-2 On-board computer (과학기술위성 2호 탑재 컴퓨터의 EM 개발 및 구현)

  • Yu, Chang-Wan;Im, Jong-Tae;Nam, Myeong-Ryong
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.34 no.2
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    • pp.101-105
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    • 2006
  • The Engineering Model of STSAT-2 on-board computer(OBC) was developed and tested completely with other sub-systems. The on-board computer of STSAT-2 has a high- performance PowerPC processors and a structure of centralized network communication. In addition, a lot of logics are implemented by Field Programmable Gate Array, such as interrupt controller, watchdog timer and UART. It could make the weight and size of OBC lighter and smaller. Also, the STSAT-2 on-board computer has more improved tolerance against Single Event Upsets and faults than that of the STSAT-1.

Feasibility Study of Improved Train Control System Using On-board Controller for Intelligent Control of Trackside Facilities (선로변 시설물의 지능적 제어를 위한 차상중심 열차제어시스템 시뮬레이션 기반 성능 평가)

  • Baek, Jong-Hyen;Jo, Hyun-Jeong;Chae, Eun-Kyung;Choi, Hyun-Young;Kim, Yong-Gyu
    • Journal of the Korean Society for Railway
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    • v.16 no.6
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    • pp.528-533
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    • 2013
  • To improve the efficiency and safety of railway systems, the train control system has considerably evolved from the ground-equipment-based control system (e.g. track circuit, interlocking system, etc.) into the on-board-equipment-based control system. In addition, this train control system enables the rolling stock to intelligently control the trackside facilities by introducing information and communication technologies (ICT). Accordingly, since the ICT-based train control system simplifies the railway system (i.e. the heavy ground-equipment can be removed), an efficient and cost-effective railway system can be realized. In this paper, we perform a feasibility test of the ICT-based train control system using a simulation. To this end, we implement a test-bed consisting of prototype machines of on-board/ground equipment and introduce an integrated operation scenario for the train control. The simulation results satisfy all the requirements of train operation according to the scenario and show the effectiveness of the proposed train control system.

Implemention of RCCL on PUMA (PUMA robot에서의 RCCL(robot control C library)의 구현)

  • 배본호;이진수
    • 제어로봇시스템학회:학술대회논문집
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    • pp.24-29
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    • 1991
  • RCCL(Robot Control C Library) is general purpose robot control language. It is programmed with C language and composed of C library. So it is well portable and supports sensor integration control and high level force control algorithms. We implemented RCCL on PUMA. We developed servo controller of DDC(Direct Digital Control). We used intel 8097BH one chip micro controller as CPU. One digital servo board controls three motors. Host computer is IBM PC 386DX-33 with RCCL.

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A Linear Photodiode Array Detector System for Multichannel Spectroscopic Applications

  • Kim, Hai-Dong;Han, Seung-Hee
    • Bulletin of the Korean Chemical Society
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    • v.14 no.2
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    • pp.211-215
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    • 1993
  • A multichannel optical detector system employing a self-scanning linear photodiode array has been developed. The photodiode array detector system is designed for various applications which require fast, multichannel detection of transient signals. The detector system consists of a controller which runs on an IBM personal computer and a detector head connected to the controller through a DB-15 cable. The entire scanning of 1024 detector elements is achieved in 20 ms. By using an on-board 16-bit counter/timer, the operational mode of the photodiode array detector is fully programmable by software. The design considerations and the performance of the photodiode array detector system is presented.

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A Design of LAS data processing board using PowerPC and VxWorks (PowerPC 및 VxWorks를 이용한 예인배열센서 데이터처리보드 개발)

  • Lim, Byeong-Seon;Kim, Young-Kil
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.371-374
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    • 2009
  • This Paper deal with a design, making a prtotype and test methods of Real-time towed Line Array Sensor Data processing board for fast data communication and long range transmission with SFM(Serial FPDP Module) through Optic-fiber channel. The LAS A,B,C group Data from towed line array sensor which is installed in FFX(Fast Frigate eXperimental) of Korean Navy is packed a previously agreed protocol and transmitted to the Signal processing unit. Consider the limited space of VME 6U size, LAS Data processing board is designed with MPC8265 PowerPC Controller of Freescale for main system control and Altera's CycloneIII FPGA for sensor data packing, self-test simulation data generation, S/W FIFO et cetera. LAS Data processing board have VxWorks, the RTOS(Real Time Operating System) that present many device drivers, peripheral control libraries on board for real-time data processing.

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Experimental Studies of neural Network Control Technique for Nonlinear Systems (신경회로망을 이용한 비선형 시스템 제어의 실험적 연구)

  • Jeong, Seul;Yim, Sun-Bin
    • Journal of Institute of Control, Robotics and Systems
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    • v.7 no.11
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    • pp.918-926
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    • 2001
  • In this paper, intelligent control method using neural network as a nonlinear controller is presented. Simulation studies for three link rotary robot are performed. Neural network controller is implemented on DSP board in PC to make real time computing possible. On-line training algorithms for neural network control are proposed. As a test-bed, a large x-y table was build and interface with PC has been implemented. Experiments such as inverted pendulum control and large x-y table position control are performed. The results for different PD controller gains with neural network show excellent position tracking for circular trajectory compared with those for PD controller only. Neural control scheme also works better for controlling inverted pendulum on x-y table.

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