• Title/Summary/Keyword: embedded controller

Search Result 474, Processing Time 0.03 seconds

A Design of New Real Time Monitoring Embedded Controller using Boundary Scan Architecture (경계 주사 구조를 이용한 새로운 실시간 모니터링 실장 제어기 설계)

  • 박세현
    • Journal of Korea Multimedia Society
    • /
    • v.4 no.6
    • /
    • pp.570-578
    • /
    • 2001
  • Boundary scan architecture test methodology was introduced to facilitate the testing of complex printed circuit board. The boundary scan architecture has a tremendous potential for real time monitoring of the operational status of a system without interference of normal system operation. In this paper, a new type of embedded controller for real time monitoring of the operational status of a system is proposed and designed by using boundary scan architecture. The proposed real time monitoring embedded controller consists of test access port controller and an embedded controller proposed real time monitoring embedded controller using boundary scan architecture can save the hard-wire resource and can easily interface with boundary scan architecture chip. Experimental results show that the real time monitoring using proposed embedded controller is more effective then the real time monitoring using host computer.

  • PDF

Monitoring of Industrial Controller using Web Server On Embedded Linux Platform

  • Park, Byung-Wook;Cho, Duk-Yun
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2001.10a
    • /
    • pp.45.4-45
    • /
    • 2001
  • In this paper, we present the wet-based monitoring system for industrial controller such as inverter controller for hydraulic elevators. The monitoring system is using an embedded web server on embedded Linux platform. The control board of system-On-Chip (SoC) is based on ARM7TDMI with Ethernet controller. Wet-based monitoring system using embedded Linux platform can reduce the cost, and have flexibility both of technical issues and locations If the system to be monitored. The system shows the feasibility of remote monitoring system based on embedded Linux platform.

  • PDF

Development of Unmanned Driving Technologies for Speed Sprayer in Orchard Environment (과수원 환경에서의 방제기 무인주행 기술 개발)

  • Li, Song;Kang, Dongyeop;Lee, Hae-min;An, Su-yong;Kwon, Wookyong;Chung, Yunsu
    • IEMEK Journal of Embedded Systems and Applications
    • /
    • v.15 no.6
    • /
    • pp.269-279
    • /
    • 2020
  • This paper presents the design and implementation of embedded systems and autonomous path generation for autonomous speed sprayer. Autonomous Orchard Systems can be divided into embedded controller and path generation module. Embedded controller receives analog sensor data, on/off switch data and control linear actuator, break, clutch and steering module. In path generation part, we get 3D cloud point using Velodyne VLP16 LIDAR sensor and process the point cloud to generate maps, do localization, generate driving path. Then, it finally generates velocity and rotation angle in real time, and sends the data to embedded controller. Embedded controller controls steering wheel based on the received data. The developed autonomous speed sprayer is verified in test-bed with apple tree-shaped artworks.

Digital Controller of a Diesel Generator using an Embedded System

  • Ahn, Kwang-Seon
    • Journal of Information Processing Systems
    • /
    • v.2 no.3 s.4
    • /
    • pp.143-146
    • /
    • 2006
  • We have designed an embedded controller for the control of a diesel generator using an embedded system. The generator is monitored and controlled remotely via the internet in real-time. The proposed digital controller is designed to handle precisely the distortions and noises of the signals emanating from the diesel generator, and enables abnormal operation of the diesel generator to be notified to the remote manager using the Short Message Service (SMS) of the Internet, which enables the appropriate personnel to take action by remote control according to the incoming messages.

Development of Multi-protocol Controller based on Embedded Linux and Its Application to BAS (임베디드 리눅스 기반의 다중 프로토콜 제어기 개발 및 빌딩자동화시스템과의 연동 적용)

  • 김현기;신은철;최병욱
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.10 no.5
    • /
    • pp.428-433
    • /
    • 2004
  • In this paper, we developed a multi-protocol controller based on SoC and embedded Linux and applied it to integrate with BAS in a unified TCP/IP socket communication. The multi-protocol controller integrates control networks of RS-485 and LonWorks devices to BAS. The system consists of three-tier architecture, such as a BAS, a multi-protocol converter, and control devices. By using UML, we modeled the system architecture. In order to show the feasibility of system architecture, it was applied to a small BAS system. The experimental results show that the multi-protocol controller using embedded Linux is flexible and effective way to develop a building control system.

Web-based Servo Motor Controller Design with Real-time Micro Embedded Operating System

  • Kim, Ga-Gue;Lee, Hyung-Seok
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.1655-1658
    • /
    • 2004
  • In this paper, we design and implement remote servo motor control system with real-time micro embedded operating system. The system, where controller and camera image grabber are mounted, handles control commands transmitted from a remote PC web browser. A hard real-time servo motor driver running on the real-time micro embedded OS and then a digital control application which confirms precise sampling time intervals is constructed. Frame grabber images transmitted from camera are saved in a image data format to view on remote PC web browser.

  • PDF

Xenomai-based Embedded Controller for High-Precision, Synchronized Motion Applications (고정밀 동기 모션 제어 응용을 위한 Xenomai 기반 임베디드 제어기)

  • Kim, Chaerin;Kim, Ikhwan;Kim, Taehyoun
    • KIISE Transactions on Computing Practices
    • /
    • v.21 no.3
    • /
    • pp.173-182
    • /
    • 2015
  • Motion control systems are widely deployed in various industrial automation processes. The motion controller, which is a key element of motion control systems, has stringent real-time constraints. The controller must provide a short and deterministic control message transmission cycle, and minimize the actuation deviation among motor drives. To meet these requirements, hardware-based proprietary controllers have been prevalent. However, since it is becoming difficult for such an approach to meet increasing needs of system interoperability and scalability, nowadays, software-based universal motion controllers are regarded as their substitutes. Recently, embedded motion controller solutions are gaining attention due to low cost and relatively high performance. In this paper, we designed and implemented an embedded motion controller on an ARM-based evaluation board by using Xenomai real-time kernel and other open source software components. We also measured and analyzed the performance of our embedded controller under a realistic test-bed environment. The experimental results show that our embedded motion controller can provide relatively deterministic performance with synchronized control of three motor axis at 2 ms control cycle.

A Simple Power Management Scheme with Enhanced Stability for a Solar PV/Wind/Fuel Cell Fed Standalone Hybrid Power Supply using Embedded and Neural Network Controller

  • Thangavel, S.;Saravanan, S.
    • Journal of Electrical Engineering and Technology
    • /
    • v.9 no.5
    • /
    • pp.1454-1470
    • /
    • 2014
  • This paper propose a new power conditioner topology with intelligent power management controller that integrates multiple renewable energy sources such as solar energy, wind energy and fuel cell energy with battery backup to make best use of their operating characteristics and obtain better reliability than that could be obtained by single renewable energy based power supply. The proposed embedded controller is programmed for maintaining a constant voltage at PCC, maximum power point tracking for solar PV panel and WTG and power flow control by regulating the reference currents of the controller on instantaneous basis based on the power delivered by the sources and load demand. Instantaneous variation in reference currents of the controller enhances the controller response as it accommodates the effect of continuously varying solar insolation and wind speed in the power management. The power conditioner uses a battery bank with embedded controller based online SOC estimation and battery charging system to suitably sink or source the input power based on the load demand. The simulation results of the proposed power management system for a standalone solar/WTG/fuel cell fed hybrid power supply with real time solar radiation and wind velocity data collected from solar centre, KEC for a sporadically varying load demand is presented in this paper and the results are encouraging in reliability and stability perspective.

A Design and Voltage Control of a High Efficiency Generator with PM Exciter (고효율 영구자석 여자기 구조의 발전기 설계와 전압제어)

  • Jo, YeongJun;Lee, Dong-Hee
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.65 no.11
    • /
    • pp.1827-1834
    • /
    • 2016
  • This paper presents a high efficient generator with PM(Permanent Magnet) exciter. The proposed PM exciter for the generator can produce a linear output voltage according to the engine speed. This output voltage is directly used to control the field current of the generator to adjust the generator output voltage. In the proposed generator system, since the field winding current can be supplied by the PM exciter, the generator can self-start without any battery or an external power supply due to the low residential flux. Furthermore, the operating efficiency of the generator is higher than a conventional winding exciter. The main problem of the proposed generator system, the field winding current controller has to be embedded inside the generator, and it rotates according to the generator shaft. In this paper, the proper embedded current controller is designed for the proposed generator system. Due to the embedded controller cannot be connected to the outside the generator controller, the measured instantaneous output voltage of the generator is transferred by the photo isolated communication using shaft aligned infrared transmitter and receiver to keep the constant generator output voltage. In this paper, 10kW, 380V engine generator with PM exciter and the embedded DAVR(Digital Automatic Voltage Regulator) are described. The proposed high efficiency generator is simulated and tested to verify the effectiveness.

Embedded Controller Technology of Injection Molding Machine for Control and Monitoring (사출 성형기 제어/감시용 Embedded Controller 기술)

  • Kim, Han Gyu;Son, Il Ho;Song, Joon Yub;Ha, Tae Ho
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.31 no.7
    • /
    • pp.577-583
    • /
    • 2014
  • In this study, we introduce how to apply "Information and Communication Technology (ICT) to injection molding system. We report the current state of IT technology applied to produce their products in micro lens injection molding system. And we explain key technology of ICT for injection molding system and how to implement. Especially, we also mention about an embedded controller, also called as "M2M device". It provides programmable intelligent functions, communication, various interfaces, amplifier functions and mobile device connection to our application.