• Title/Summary/Keyword: Embedded System

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Development of a Program Outcomes Assessment System based on Course Embedded Assessment for Nursing Education (Course Embedded Assessment 기반 간호교육 프로그램학습성과 평가체제 개발)

  • Nam, Soung Mi
    • The Journal of Korean Academic Society of Nursing Education
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    • v.23 no.2
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    • pp.135-145
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    • 2017
  • Purpose: The purpose of this study was to develop a program outcomes assessment system based on Course Embedded Assessment for nursing education. Methods: This study was conducted in accordance with the procedures of the developmental research method. Results: The major results are as follows. 1) The program outcomes were measured according to the Analytic Hierarchy Process. 2) The Course Embedded Assessment matrix was made according to program outcomes' weight, the curriculum-organizing principle, and achievement levels. 3) The Course Embedded Assessment rubric was developed in logical process, and consisted of a performance criterion, and rating scale. The content validity index of the Course Embedded Assessment rubric was 0.85. 4) An evaluation guideline and 12 documents were developed to facilitate the performance of the assessment system. 5) The average content validity index of the Course Embedded Assessment-based program outcomes assessment system was as high as 0.89. Conclusion: A Course Embedded Assessment-based program outcomes assessment system is more suitable for accreditation of nursing education than previous studies. Because this system evaluates the process of achievement as well as program outcomes, the results can also serve as immediate feedback to improve the educational process. Above all, this system facilitates that students check their achievements and strive to acquire core competencies in nursing.

Implementation of a network-based Real-Time Embedded Linux platform

  • Choi, Byoung-Wook;Shin, Eun-Cheol;Lee, Ho-Gil
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.1840-1845
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    • 2005
  • The SoC and digital technology development recently enabled the emergence of information devices and control devices because the SoC present many advantages such as lower power consumption, greater reliability, and lower cost. It is required to use an embedded operating system for building control systems. So far, the Real-Time operating system is widely used to implement a Real-Time system since it meets developer's requirements. However, Real-Time operating systems reveal a lack of standards, expensive development, and license costs. Embedded Linux is able to overcome these disadvantages. In this paper, the implementation of control system platform using Real-Time Embedded Linux is described. As a control system platform, we use XScale of a Soc and build Real-Time control platform using RTAI and Real-Time device driver. Finally, we address the feasibility study of the Real-Time Embedded Linux as a Real-Time operating system for mobile robots.

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Embedded Linux System for IEEE-1394 Realization. (IEEE-1394 구현을 위한 Embedded LINUX System)

  • 서원호;이정훈;임중규;엄기환
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2001.05a
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    • pp.700-705
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    • 2001
  • IEEE1394 is a new interface standard for connecting peripheral devices to embedded linux system. A IEEE1394 system consists of a embedded Linux system and a number of peripherals with IEEE1394 interfaces. In this paper, we Embedded Linux System for IEEE-1394 Realization described with IEEE1394 interface. Using hardware used board on MPC860 processor, Linux kernel used kernel 2.2.14 for a stabilization version, Hardware Interface inspected a test and quality improvement On board with IEEE1394 Application.

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Implementation of the Embedded Screen Control System using Image-Based Mobile Network (이미지기반 모바일 네트워크를 이용한 임베디드 전광판의 원격제어 시스템의 구현)

  • Lee Yeon-Seok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.5
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    • pp.970-974
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    • 2006
  • In his paper, a remote screen control system by mobile networks on embedded system is implemented. For this system a server program is ported on the embedded system connected to the internet. And on the side of a mobile phone, a client program is ported using general virtual machine. The embedded system can display the image from the mobile phone on its LCD. In the implemented embedded system, the image data from GVM emulator is sent to the system for display on its LCD. The realization of the proposed embedded system can display the image from a working mobile phone.

Multiple-Background Model-Based Object Detection for Fixed-Embedded Surveillance System (고정형 임베디드 감시 카메라 시스템을 위한 다중 배경모델기반 객체검출)

  • Park, Su-In;Kim, Min Young
    • Journal of Institute of Control, Robotics and Systems
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    • v.21 no.11
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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.

Regular File Access of Embedded System Using Flash Memory as a Storage (플래시 메모리를 저장매체로 사용하는 임베디드 시스템에서의 정규파일 접근)

  • 이은주;박현주
    • Journal of Information Technology Applications and Management
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    • v.11 no.1
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    • pp.189-200
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    • 2004
  • Recently Flash Memory which is small and low-powered is widely used as a storage of embedded system, because an embedded system requests portability and a fast response. To resolve a difference of access time between a storage and RAM, Linux is using disk caching which copies a part of file on disk into RAM. It is not also an exception on embedded system. A READ access-time of flash memory is similar to RAMs. So, when a process on an embedded system reads data, it is similar to the time to access cached data in RAM and to access directly data on a flash memory. On the embedded system using limited memory, using a disk cache is that wastes much time and memory spaces to manage it and can not reflects the characteristic of a flash memory. This paper proposes the regular file access of limited using a page cache in the file system based on a flash memory and reflects the characteristic of a flash memory. The proposed algorithm minimizes power consumption because access numbers of the RAM are reduced and doesn't waste a memory space because it accesses directly to a flash memory Therefore, the performance improvement of the system applying the proposed algorithm is expected.

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A Study of Wireless LAN Communication using Embedded System (임베디드 시스템을 이용한 무선랜 통신에 관한 연구)

  • Lee, Chang-Keun;Choi, Jae-Woo;Ro, Bang-Hyun;Hwang, Hee-Yeung
    • Proceedings of the KIEE Conference
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    • 2003.11c
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    • pp.673-676
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    • 2003
  • In this paper, we designed the embedded system used for wireless LAN communication. Embedded system kernel is made from general linux kernel 2.4.18 by applying the ARM patch (2.4.18-rmk7) and the SA1100 patch(2.4.18-rmk7), then porting board level suitable to target system. The SA-1110 PCMCIA interface provides controls for one PCMCIA card slot with a PSKTSEL pin for support of a second slot. The embedded system requires external logic to complete the PCMCIA socket interface. For dual-voltage support, level shifting buffers are required for all SA-1110 input signals. Hot insertion capability requires that each socket be electrically isolated from each other, and from the remainder of the memory system. embedded system is for socket services approaching PCMCIA socket, detecting number of sockets, sensing insertion and removal, and applying power. It also provides interface with Card services. Embedded system supports Host driver for lucent chips that is installed orinoco driver cross compiled. The meaning can say that is doing wireless LAN communication through wireless LAN in imbedded system.

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A Study On The Development Of a Home Networking System Using An Embedded Linux Board (임베디드 리눅스 보드를 이용한 홈 네트워킹 시스템 구현에 관한 연구)

  • Lee, Heon-Joo;Lee, Jong-Su;Choi, Kyung-Sam
    • Proceedings of the KIEE Conference
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    • 2003.11c
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    • pp.592-595
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    • 2003
  • In this paper, we have designed a Home Networking System using an embedded linux board. The system based on the World-Wide-Web is composed of three parts - a Server, a Client and a Simulator. The Home Networking Server is built in an embedded board using an embedded linux kernel. A web-server and Home Networking Server Seryice Demon programming with a Jaya-Language is included in the board. Clients can connect to the server board using a web-browser in the desktop computer, PDA or any other machines which include a web-browser. For this purpose, we made the client program using a Java-Applet. So, the clients who connect to the server for the control of the applications, download the class-file and execute the client-program in the web-browser. So, the clients don't need any other programs to control the applications from a remote place. The size of server board is very small (86.3$\times$74mm), which makes it very useful not only for the Home-Networking-System but also in many other fields, e.g., embedded robot control system, etc. Using an embedded board instead of a desktop computer is good for a simple network environment and it occupies only a small space to make the system.

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Design of an Embedded Linux File System with LZSS Algorithm for the PDA System (LZSS 압축 알고리즘을 적용한 PDA용 Embedded Linux 파일 시스템 설계)

  • Jang Seung-Ju
    • The KIPS Transactions:PartA
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    • v.13A no.2 s.99
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    • pp.95-100
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    • 2006
  • I design an Embedded File System in Linux Operating System by applying modified LZSS compressed algorithm. This suggested Compressed File System which is modified file system of the Linux O.S saves the storage space. The compressed file system supports efficient use of storage space. The suggesting file system solves the small space of embedded system. The suggesting file system of this paper gives effect of the large storage space without extending the storage space.

Efficient Applications Based on OSEK OS (OSEK OS를 적용한 어플리케이션 효율화)

  • Park, Won-Yong;You, Choon-Young;Kim, Jae-O;Jeong, Gu-Min;Moon, Chan-Woo;Ahn, Hyun-Sik
    • Proceedings of the KIEE Conference
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    • 2008.04a
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    • pp.143-144
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    • 2008
  • 본 논문에서는 차량용 실시간 운영체제인 OSEK/VDX가 어떠한 구조로 이루어졌는지 알아보고 간단한 Application에 응용해 보았다. OSEK/VDX의 표준화 되어있는 기본 구성요소인 OS, COM, NM, OIL에 대하여 각각의 기능에 대하여 소개하고 OIL파일을 작성해서 ECU에 적용하기 위한 설계 가이드를 제시한다.

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