• Journal of Advanced Marine Engineering and Technology
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• 제29권5호
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• pp.587-592
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• 2005

The ESS(Energy Saving System) is designed to have functions of controlling. monitoring for cooling system. etc. ESS consists of the I/O module, CPU module and Display module I/O module detects various ESS data on local area and treats signals via I/O interface system. The interface system receives various status data and outputs control signals. ESS is tested with dummy signal to verify proposed functions and is shown good results. For future study ESS will be tested under real condition in the ship.

• 경영과학
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• 제17권2호
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• pp.67-73
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• 2000

This paper describes a scheduling support system for a plant where the machine environment may be modeled as non-identical parallel machine lines (NPML). That is, there are a number of stages in series with various different-capability-machines at each stage. Arriving continuously are jobs with their specific due dates, processing times and candidate processing machines. We’ve developed a real-time scheduling module in conjunction with a supporting production information system which supplies necessary data to the module. This scheduling module is one of the 9 modules in this system, and is composed of both a scheduling interface and a production monitoring interface. This module allows users to generate many candidate schedules by selecting their business policies. The selective arguments which are available consist of allocation costs, batch sizes and machine selection intervals. They are now being implemented at a powder metallurgy plant.

• 경영과학
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• 제17권1호
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• pp.55-64
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• 2000

By managing not only geographical information but also various kinds of attribute data. GIS presents useful information for decision-makings. Most of decision-making problems using GIS can be formulated into network-optimization problems. In this study we deal with the implementation of network optimization system that extracts data from the database in GIS. solves a network optimization problem and present optimal solutions through GIS' graphical user interface. We design a nitwork optimization system and present some implementation techniques by showing a prototype of the network optimization system. Our network optimization system consists of three components : the interface module for user and GIS the basic network the program module the advanced network optimization program module. To handle large-scale networks the program module including various techniques for large sparse networks is also considered, For the implementation of the network optimization system we consider two approaches : the method using script languages supported by GIS and the method using client tools of GIS. Finally some execution results displayed by the prototype version of network optimization system are given.

• 전기학회논문지P
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• 제56권3호
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• pp.117-122
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• 2007

In this paper, we described a design and implementation of a sensor node for environmental monitoring. The main focus of design for sensor nodes is to isolate MCU for treating sensors from the RF module for considering various communication environment. The second is to make the interface between MCU and varity of sensor. In addition, we choose a narrow band communication module, cc1020, for the admittance of Korea government communication law. We also use a uC/OS-II as an operating system which is famous for 8bit MCUs. We showed that the communication performance is sufficient to use the communication module in a out-door environment through several experiments in that it is possible to transmit between 100m distance through experiments in a mountain.

• 대한산업공학회지
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• 제19권2호
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• pp.119-132
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• 1993

This paper deals with the development of an expert process design system interfaced with CAD for porismatic parts in injection mold manufacture. The developed CAD/CAPP system consists of two modules such as CAD interface module and process design module. Parts are represented using AutoCAD system on the IBM PC/AT. CAD interface module recognizes form features and manufacturing features of the part using form feature recognition algorithm and manufacturing feature recognition rule base. Process design module selects operations and determines machine tools, cutting tools and operation sequencing by using knowledge base which is acquired from expert process planners. A case study is implemented to evaluate feasibilities of the function of the proposed system. The CAD/CAPP system can improve the efficiency of process design activities and reduce the time required for process design.

• 융합보안논문지
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• 제11권1호
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• pp.19-24
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• 2011

센서 모듈을 이용한 물리적인 정보보호 기능을 제공하는 수동 SID 센서 태그를 제안한다. 제안한 보안 센서 태그는 기본적으로 직렬 I/O 인터페이스 모듈, 제어 모듈, 센서모듈로 구성된다. 본 논문에서는, 저항 기반의 센서 신호 데이터를 비교하고 암호화하여 센서 태그의 정보보호 기능을 나타냈다. 제안한 수동형 SID 센서 태그는 상품의 안전, 위조 및 변조 식별, 등을 실시간으로 관리할 수 있다. 또한, 변환기를 이용한 수동형 SID 센서 태그는 광범위한 물리적 정보보호응용에 활용될 것으로 기대한다.

• 스마트미디어저널
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• 제8권3호
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• pp.47-52
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• 2019

In this paper, we designed HW / SW interfaces for processing the signals of capacitive sensors like Electric Potential Sensor (EPS) to detect the surrounding electric field disturbance as feature signals in motion recognition systems. We implemented a smart light control system with those interfaces. In the system, the on/off switch and brightness adjustment are controlled by hand gestures using the designed and fabricated interface circuits. PWM (Pulse Width Modulation) signals of the controller with a driver IC are used to drive the LED and to control the brightness and on/off operation. Using the hand-gesture signals obtained through EPS sensors and the interface HW/SW, we can not only construct a gesture instructing system but also accomplish the faster recognition speed by developing dedicated interface hardware including control circuitry. Finally, using the proposed hand-gesture recognition and signal processing methods, the light control module was also designed and implemented. The experimental result shows that the smart light control system can control the LED module properly by accurate motion detection and gesture classification.

• Journal of information and communication convergence engineering
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• 제6권3호
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• pp.266-269
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• 2008

Layered structure of the Korean terrestrial Digital Multimedia Broadcasting (TDMB) transmission system for multimedia broadcasting service is presented in this paper. We made a switching module which is called the Ensemble Remultiplexer. It is designed to remultiplex the Ensemble Transport Interface (ETI) for T-DMB service. This paper describes the remultiplexing process of the Ensemble Remultiplexer.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 19-21 Oct. 1992
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• pp.31-36
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• 1992

This paper describes the development of a 'General-purpose ETRI MAP interface module' (GEM) for a Mini-MAP network. GEM operates as a Mini-MAP node in our FA system. To communicate between GEM and programmable devices such as PLC, CNC, and robot, RS232C is used, which is a traditional method. A Mini-MAP host system controls and monitors programmable devices via GEM. The Mini-MAP function of GEM is implemented and tested on the basis of the MAP V3.0.

• 한국통신학회논문지
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• 제34권6B호
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• pp.630-640
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• 2009

본 논문에서는 고성능 모바일 TFT LCD/OLED 모듈(이하, 모듈)을 위한 헨드헬드 검사장비를 제안한다. 기존 모듈 검사장비는 명멸현상을 구분하기 위해선 동영상 데이터를 모듈에 출력시켜 구분할 수 있으나, 저속 시스템으로는 불가능하다. 또한 기존 검사장치는 저속의 CPU와 FPGA 시스템에서 필요한 몇 가지의 기능을 IP로 설계하고 사용하기 때문에 시스템의 한계를 지니고 있다. 이에 제안한 시스템은 고성능 모바일 모듈을 위한 검사장비로 다양한 크기의 모듈을 H/W나 FPGA의 설계 변경 없이 검사 장비를 휴대하여 여러 가지 부가기능들을 동시에 확인할 수 있다. 시스템은 크게 헨드헬드 검사장비와 내장된 테스터 소프트웨어, 정밀 분석을 위한 PC기반의 소프트웨어로 구성되며, USB 인터페이스 하여 헨드헬드 검사장비의 모든 모듈 테스트 내용을 확인, 저장, 출력 할 수 있도록 설계되어 있다. 제안된 시스템의 유효성 검증은 현장에서 사용하는 9가지의 대표 항목으로 설정하여, 고성능 모바일 TFT LCD/OLED에서 중요한 명멸현상에 대한 풀 프레임 동영상 구동시 별도의 모듈 없이 확인이 가능하였고, 기타 스캔타임 설정, 감마설정, 레지스터 변경, 인터페이스 지원, 다 인치 모듈지원 등이 가능하였다.