• Title/Summary/Keyword: System Interface

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LPG/CNG Interface Box Hardware Design (LPG/CNG Interface Box 제품 Hardware 설계)

  • An, Jeong-Hoon;Jung, Jae-Min
    • Transactions of the Korean Society of Automotive Engineers
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    • v.15 no.6
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    • pp.23-29
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    • 2007
  • In Korea, the number of LPG vehicles is increasing continuously because LPG is cheaper than Gasoline. Also in Europe, the CNG fuel is a good solution to meet $CO_2$ regulation. In order to use LPG/CNG fuel, new EMS ECU must be developed for every type of vehicles and it requires huge development cost. In order to reduce development cost and time, SIEMENS VDO has developed an Interface Box. It supports EMS ECU in the car and manages LPG/CNG fuel injection system. Basically the Interface box can be used with any kind of EMS ECU. The Interface Box controls LPG/CNG injector through the injection command of gasoline EMS ECU. It calculates required amount of based on the fuel temperature and pressure and sends feedback signal to ECU for fuel correction. Also, it controls LPG/CNG specific actuator such a Shut off valves and LPG switch inputs.

Implementation of Stable Interface for Clinic Laboratory Equipment (임상검사장비를 위한 안정적 인터페이스의 구현)

  • Lee, Jong-Hyeok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.11
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    • pp.2355-2360
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    • 2009
  • As for information system in hospital which digital hospital aims at, there are LIS(Laboratory Information System) and so on. Interface program gather the results from the clinic laboratory equipment and manage the results efficiently as well. To implement interface program, multi tasking and multi thread method is used. In this paper, we proposed the stable method after comparing and analyzing these two methods we present above through the simulation. Also we designed and implemented Interface program which satisfy the users' requirements applying the proposed method. The result of using the built interface program in the hospital field confirms that the program operates safely.

A User Interface Style Guide for the Cabinet Operator Module (캐비닛운전원모듈을 위한 사용자인터페이스 스타일가이드)

  • Lee, Hyun-Chul;Lee, Dong-Young;Lee, Jung-Woon
    • Proceedings of the KIEE Conference
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    • 2005.05a
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    • pp.203-205
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    • 2005
  • A reactor protection system (RPS) plays the roles of generating the reactor trip signal and the engineered safety features (ESF) actuation signal when the monitored plant processes reach predefined limits. A Korean project group is developing a new digitalized RPS and the Cabinet Operator Module (COM) of the RPS which is used for the RPS integrity testing and monitoring by an equipment operator. A flat panel display (FPD) with a touch screen capability is provided as a main user interface for the RPS operation. To support the RPS COM user interface design, actually the FPD screen design, we developed a user interface style guide because the system designer could not properly deal with the many general human factors design guidelines. To develop the user interface style guide, various design guideline gatherings, a walk-though with a video recorder, guideline selection with respect to user interface design elements, determination of the properties of the design elements, discussion with the system designers, and a conversion of the properties into a screen design were carried out. This paper describes the process in detail and the findings in the course of the style guide development.

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Development of the MVS (Muscle Volume Sensor) for Human-Machine Interface (인간-기계 인터페이스를 위한 근 부피 센서 개발)

  • Lim, Dong Hwan;Lee, Hee Don;Kim, Wan Soo;Han, Jung Soo;Han, Chang Soo;An, Jae Yong
    • Journal of the Korean Society for Precision Engineering
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    • v.30 no.8
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    • pp.870-877
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    • 2013
  • There has been much recent research interest in developing numerous kinds of human-machine interface. This field currently requires more accurate and reliable sensing systems to detect the intended human motion. Most conventional human-machine interface use electromyography (EMG) sensors to detect the intended motion. However, EMG sensors have a number of disadvantages and, as a consequence, the human-machine interface is difficult to use. This study describes a muscle volume sensor (MVS) that has been developed to measure variation in the outline of a muscle, for use as a human-machine interface. We developed an algorithm to calibrate the system, and the feasibility of using MVS for detecting muscular activity was demonstrated experimentally. We evaluated the performance of the MVS via isotonic contraction using the KIN-COM$^{(R)}$ equipment at torques of 5, 10, and 15 Nm.

Simulator Design Using a General Purpose PC and Off-The-Shelf Interface Boards for GNSS/INS Integrated Navigation System (GNSS/INS 통합항법 시스템을 위한 범용 PC와 Off-The-Shelf 인터페이스 보드를 이용한 시뮬레이터 설계)

  • Jae Hoon Son;Sang Heon Oh;Dong-Hwan Hwang
    • Journal of Positioning, Navigation, and Timing
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    • v.13 no.1
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    • pp.93-102
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    • 2024
  • Global Navigation Satellite System (GNSS)/Inertial Navigation System (INS) integrated navigation systems provide highly accurate and reliable navigation solutions and are widely used as civil and military navigation systems. In order to facilitate the GNSS/INS integrated navigation system development task, a simulator can be used to provide inputs for the GNSS/INS integrated navigation system. In this paper, a simulator design using general-purpose Personal Computer (PC) and Off-The-Shelf (OTS) interface boards for a GNSS/INS integrated navigation system is proposed and implementation results are presented. Requirements of the GNSS/INS integrated navigation system simulator are presented and a design method that satisfies the requirements is described. In order to show the usefulness of the proposed design method, a simulator using a general-purpose PC and OTS interface boards for the GPS/INS integrated navigation system are implemented and verified. The implementation results show that the simulator designed by the proposed method generates the GPS L1 C/A signal and IMU data without any problems.

Development of Interface Inspection System for On-board Signal Equipment (열차 차상신호 인터페이스 검사 시스템 개발)

  • Park, Jae-Young;Lim, In-Taek
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.4
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    • pp.2324-2329
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    • 2014
  • The inspection of distance to go train control system conducted only when train is in main line or inspecting line, that affects low work efficiency and hazard elements to safe operation. Before or after train operation, the interface test between on-board and wayside signal system must be conducted. In this paper, onboard signal interface inspection system based on the real-time automatic analysis of onboard system status information that is transmitted to the wayside system and the operation status check of the onboard signal device operates as a virtual train information that is transmitted to the onboard system have been proposed. And after building the inspection system to the inspecting track of Daejeon Subway Line 1, Panam Depot, the verification algorithm of proposed interface test and the results was presented. therefore, it has enhanced work efficiency to do not carry train operation of a half hour in test line to test on-board system.

Seismic Performance Evaluation of Piping System Crossing the Isolation Interface in Seismically Isolated NPP (면진 원전 면진-비면진구간 연결 배관의 내진성능 평가)

  • Hahm, Daegi;Park, Junhee;Choi, In-Kil
    • Journal of the Earthquake Engineering Society of Korea
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    • v.18 no.3
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    • pp.141-150
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    • 2014
  • A methodology to evaluate the seismic performance of interface piping systems that cross the isolation interface in the seismically isolated nuclear power plant (NPP) was developed. The developed methodology was applied to the safety-related interface piping system to demonstrate the seismic performance of the target piping system. Not only the seismic performance for the design level earthquakes but also the performance for the beyond design level earthquakes were evaluated. Two artificial seismic ground input motions which were matched to the design response spectra and two historical earthquake ground motions were used for the seismic analysis of piping system. The preliminary performance evaluation results show that the excessive relative displacements can occur in the seismically isolated piping system. If the input ground motion contained relatively high energy in the low frequency region, we could find that the stress response of the piping system exceed the allowable stress level even though the intensity of the input ground motion is equal to the design level earthquake. The structural responses and seismic performances of piping system were varied sensitively with respect to the intensities and frequency contents of input ground motions. Therefore, for the application of isolation system to NPPs and the verification of the safety of piping system, the seismic performance of the piping system subjected to the earthquake at the target NPP site should be evaluated firstly.

Implementation of HL7 Interface Engine for Medical Information Exchange (의료정보 공유를 위한 HL7 인터페이스 엔진 구현)

  • Hwang, Deuk-Young
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.8
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    • pp.89-98
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    • 2010
  • Recently supply of Internet is bringing a important change in medical environments. The hospitals which had a different system is required the system that can efficiently share and exchange medical information. In order to transmission medical information between systems, the Health Level Seven(HL7) interface engine development that can convert medical data to HL7 messages is necessary. The HL7 is a standard protocol for data exchange in healthcare environments. In this paper, I implemented HL7 interface engine for Alzheimer's disease in elderly care facility. The interface engine is composed of the client system and the server system. The client system inputs user's medical care data for the aged, and builds them into HL7 message stream. HL7 messages in the client system transmitted over TCP/IP protocol to the server system. The server system parses and validates this messages stream to the segments and fields and then transmits acknowledgement to the client system. I implemented it using the Java and JavaCC. The study of interface engine implementation can be used meaningfully in electronic health record, telemedicine system, and medical information sharing among various healthcare institutions.

A study of the design and the implementation for the Human-Machine Interface Evaluation System in the In-Vehicle Navigation System (자동차 항법장치 HMI 평가시스템 설계 및 구축에 관한 연구)

  • Cha, Doo-Won;Park, Peom;Lee, Soo-Young
    • Proceedings of the ESK Conference
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    • 1998.04a
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    • pp.13.1-18
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    • 1998
  • IVNS(In-Vehicle Navigation System) which developed by the advance of technological system including computer, display and communication will procide the important interface functions between the driver and the ITS (Intelligent Transport System). However, hat the human factors engineer can actually offer to the designer is by no means a complete set of design specifications. Therefore, a set of boundary conditions and operational ranges within which the designer can be assured that physical, perceptual and cognitive abilities and limitations of drivers will be accommodated system atically[6]. Also, this will be the considerations to compose the IVNS HMI (Human-Machine Interface) design guidelines and IVNS HMI evaluation system. As the first phase of developing the IVNS HMI evaluation system, this paper describe the architecture and the content of this system.

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