• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 추계종합학술대회 논문집(2)
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• pp.120-123
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• 2000

In this paper, A target architecture and interface synthesizer are proposed for processor-embedded codesign. The target architecture has the form of ARM processor based on AMBA. The interface synthesizer automatically generates an interface circuit for the communication between HW and SW. A memory map is used as the communication channel and an interrupt-based interface is applied for synchronized communication between HW and SW modules. In order to verify the function and performance of proposed target architecture and the interface synthesizer, practical test example is applied. Experimental results show the proposed interface synthesizer functioned correctly in the HW/SW codesign environment.

• 한국통신학회논문지
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• 제29권4A호
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• pp.390-398
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• 2004

본 논문은 SoC 설계시 AMBA 버스와 다른 프로토콜을 갖는 IP간의 통신을 위한 인터페이스 설계를 위한 확장 STG 표현을 제안하며, 이를 적용하여 다양한 IP간의 통신을 위한 프로토콜 탐색 알고리즘과 인터페이스를 자동 생성하는 시스템의 구축을 제시한다. 시스템은 동기/비동기 전송타입, 데이터 사이즈 등이 서로 다른 프로토콜을 갖는 IP 간의 데이터 전송이 가능한 인터페이스 모듈을 생성한다. AMBA AHB 버스와 타겟 IP로써 비디오 디코더간의 매뉴얼한 인터폐이스 설계와 자동생성된 모듈간의 성능을 비교한 결과 burst 통신의 성능은 거의 차이를 보이지 않았다. Single 통신의 경우 매뉴얼한 설계에 비해 다소 떨어지는 성능을 보여줬으나 전체 IP의 면적을 고려할 때 극히 미미한 면적 증가만을 보였다.

• 한국통신학회논문지
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• 제37C권10호
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• pp.915-924
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• 2012

일반적으로 하나의 모바일 디바이스에 직비, 블루투스, 와이파이, 3G 와 같은 무선통신 인터페이스가 여러 개 구비되어 있지만 서비스를 이용할 때는 고정적으로 하나의 통신 인터페이스만 이용하고 있다. 본 논문에서는 다양한 통신 인터페이스를 효율적으로 사용하기 위하여 무선통신 인터페이스들 간의 능동적인 전환 기법을 제안한다. 이 기법은 통신 서비스에 따라 각 무선통신 인터페이스의 특징을 살려서 적합한 무선통신 인터페이스를 선택하고 전환하는 기법으로서, 전력 소비를 줄일 수 있고 인터페이스의 효율성을 높이는 효과가 있다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 하계종합학술대회 논문집(5)
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• pp.89-92
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• 2000

A wire communication module for PLC controller was developed. This system consists of RF module interface part, RS232 serial communication control part, LED display part and control S/W with GUI interface. RF communication frequency is controlled by PLL controlling and communication rate is also controlled as 1200 and 4800 bps. Communication and control status are displayed on LED. As a S/W part, graphic user interface on Window 95 O.S. was developed. To show the validity of the developed system, severial communication and control of PLC system were experemented.

• 한국철도학회논문집
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• 제6권2호
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• pp.135-141
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• 2003

According to the computerization of railway signaling systems, the interface link between these signaling equipment is also replaced by digital communication channel, expecially communication link for interface between EIS and LDTS, but there are some problems in the present state of railway signaling. First of all, different communication protocol is applied to interface between above two signaling equipment although they have same functions. The other is that the communication protocol currently used in railway field has some unreasonable points such as structure, formation of byte, error correction scheme and etc. To solve these problems, the standard communication protocol for railway signaling is designed. The structure of designed communication protocol and the results of performance analyses are represented in this paper. It will be expected the increase of safety, reliability and efficiency of maintenance of signaling system by using of the designed communication protocol for railway signaling.

• 산업기술연구
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• 제21권A호
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• pp.97-103
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• 2001

This paper presents the development of the I/O Interface for the real time parallel data communication between controller of a six-axis industrial robot(CRS-A460) and an external computer. The proposed I/O Interface consists of the hardware I/O interface and the software that is downloaded to the robot controller and executed by the controller operating system. The constitution of the digital I/O Port for CRS-A460 robot controller and the digital I/O board for IBM-PC are presented as well as the Process Control Program of the robot controller. The developed protocol for the parallel data communication is described. The data communication is tested, and the performance is analysed. In particular, it is shown that the real-time constraint of the robot controller process is satisfied.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 1부
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• pp.225-229
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• 2006

햅틱 인터페이스 장치는 가상공간 상에서 얻어지는 시각적 효과와 더불어 힘(촉각)을 전달하여 사용자에게 현실감을 줄 수 있는 장치이다. 본 논문에서는 다양한 용도로 사용할 수 있는 2 차원 햅틱 인터페이스 장치를 설계 및 제작하고, 입체영상 시스템과 연동하여 오락실에서 흔히 볼 수 있는 에어하키 시스템을 가상현실 기술로 구현하였다. 이때 적절한 모델링과 햅틱 렌더링을 통하여 가상 에어하키 공을 칠 때 사용자가 핸들을 잡은 손으로 느끼는 충격과 반력을 2 차원 햅틱 인터페이스 장치를 통하여 느낄 수 있도록 하였다. 구현된 시스템의 시연을 통하여 공과 핸들의 충돌 시 공이 튕겨 나가는 방향과 속도가 실제와 유사하고 공과 핸들에서 충돌이 일어날 때 실제와 상당히 유사한 느낌은 얻을 수 있음을 확인하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.49-51
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• 2005

Robot control involves advance programming, scientific and high technology. The systematic and methodological aspects of robot controls often results in having superficial control design problems that can negatively affect the robot application, usability and appeal. User friendly interface of robot control is extremely advantageous and more attractive. To illustrate, the application of medical robot is usually handled by clients who have little background in advance programming language. Thus, it would be difficult if the client needs to use programming language to control the robot. It would justify better if the robot control is presented in a meaningful interface to the client. This way the robot application would be more natural and user friendly. This paper describes the method of developing the user interface for web based communication to control an internet robot named Tarou. The web based communication tasks involves three levels. The first one accommodates on the client sending commands to robot through the internet. The next communication level relates to the robot receiving the commands sent by the client. The final communication level generates on sending feedback on status of commands by the robot to the client. The methodology used here can be elaborated in four hierarchical steps; identify user needs and robot tasks, identify the enhancing tag reference used by the server, induce the tag into HTML, present the HTML in attractive user interface as the client control panel.

• Journal of Welding and Joining
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• 제16권3호
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• pp.129-140
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• 1998

An interface system was developed to offer the welding capability to a robot controller which had not any embedded function for arc welding before, and also an arc sensor algorithm was proposed for weld seam tracking of the welding robot. For the interface system between the robot controller and welding equipments, data communication software and interface connections were composed. The interface system was mae to correspond welding condition, correction data, operation sequence and current status with the robot controller by mutual had shaking and digital signal transfer. Graphic user interface program developed under the environment of windows made it easy to monitor data communication and operation status, and to control welding and sensing sequence. Arc sensing algorithm proposed in this study to compensate torch position error was based on a fuzzy logic with the variables of current difference and current differenced change at torch weaving extremities. The developed interface system could be successfully implemented in between welding equipments and the robot controller, and showed normal status and exact function in data and signal communication between the systems. The whole robot welding system was then examined to verify its welding and seam tracking capabilities in horizontal fillet, vertical fillet, and 3-dimensional fillet weldment. The experiments revealed sound weld bead shapes and also good seam tracing results.

• 디지털융복합연구
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• 제4권1호
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• pp.31-41
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• 2006

This article introduces developing trends of an 'Ubiquitous Interface' as an access method for use of various network resources, such as public wireless networks and un-licensed wireless networks in ubiquitous sensor network environments, without troublesome settings or operations by users. 'Ubiquitous Interface' is a relatively wide sense meaning not only physical interface of specified device or between processors, but anything method for access USN. These 'Ubiquitous Interface' able to provide seamless services that adapt autonomously to the user's movements and changes in the state of wireless resources. Recently, strongly recommended current technologies are RFID, NFC, Multi-mode mobile terminal, UMA mobile terminal and Wearable computer as a future ubiquitous interface. These technologies are have to have flexibility and multiple physical communication channels for seamless service hand over and serve easy connection at huge USN to user. Also, they have to must have flexible software structure. Finally, through the 'Ubiquitous Interface', we will be experience of seamless communication and realize a real liberty of communication.