• Journal of Industrial Technology
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• v.34
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• pp.27-32
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• 2014

Infrared remote controllers are widely used in controlling electronic devices due to its simplicity and convenience. This paper presents a smart phone application unifying any infrared remote controllers. We can select a device from device list menu of the application. Any new device can be added easily by downloading the protocol file of the device from protocol file server. Remote controller protocol files are stored in audio file format, and the file related to a specific menu button is transmitted through the audio jack of smart phones. The protocol file server is a standard file server, and protocol files for various devices are collected by infrared receiver module. For smart phones without infrared facility, a small infrared module translating audio signal to infrared signal is applied.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.04b
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• pp.1081-1084
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• 2001

리눅스 시스템의 급격한 사용증가에 비해 리눅스 보안에 대한 인식은 취약한 상태이며, 응용수준에서 제공되는 로깅시스템은 위.변조의 가능성이 높다. 특히 서버 데몬에서의 감시나 추적은 전적으로 응용수준에 의존하고 있는 상태이므로 현재의 특정한 자료나 연결 요청이 공격인지 아닌지를 판단하기에는 어려움이 많다. 본 논문에서는 리눅스의 시스템 호출 로깅 모듈인 리눅스 보안 모듈(LSM:Linux Security Module)을 이용하여 서버 데몬이나 유틸리티 등에 대해 선택적으로 응용프로그램에 대한 동작상태를 감사 및 추적하여 침입여부를 판단할 수 있도록 지원하는 응용 프로그램 로깅 시스템(ALOGS: Application Program Logging System)을 설계 및 구현하고자 한다.

• Proceedings of the KIEE Conference
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• 2002.07d
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• pp.2364-2367
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• 2002

Recently PDA(Personal Digital Assistance) can be purchased at a lower cost than ever before. Therefore, it can be effectively used in various ways such as a personal information management system and wireless mobile internet application. Manufacturers of PDA try to develope various application modules for its extensive utilizations. In this work, a CF typed GPS and data logger module for PDA is designed. It can give us valuable informations about the precise position of measuring site and corresponding sensor values. The proposed CF module can make it possible for PDA to be used as a hand-held measurement device.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1998.10a
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• pp.342-351
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• 1998

The purpose of this study is to develop a central database and a database management system to store and manage information systematically from each module of an integrated structural design system. In order to efficiently express structural design process related to the data which is very complex, we used an object-oriented modeling methodology to propose the possibility to apply a database schema for application programs in an integrated system for reinforced concrete structural design. Based on this model, we developed an interface between each module and central database. After modeled by using object modeling technique, the database was mapped by the relational database table. Then the central database and the interface were programed by using Visual C/syo ++/, a windows environmental development tool.

• Computational Structural Engineering
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• v.8 no.3
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• pp.123-133
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• 1995

This study presents an application of object-oriented methodology for structural design process. A prototype of integrated structural design system is developed by introducing a structural analysis object model(SAOM) and structural design object model (SDOM). This SAOM module, which models structural member, performs structural analysis using FEM approach and the SDOM module checks structural members based on Korea steel design standard. The abstraction, encapsulation and reusability properties of the proposed models are in establishing the integrated structural design system.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2003.05a
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• pp.251-256
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• 2003

Recently, world market requires powerful management information system which cover all territory of business as competition becomes intensified. it introduce the recently ERP package in like this tendency and enterprise which construct management information system is increasing at a day. The research which it sees hereupon suggests ERP module application method which is suitable to shipping business through such as theoretical consideration and a case study

• The Journal of Korean Institute of Communications and Information Sciences
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• v.17 no.11
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• pp.1279-1289
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• 1992

Fault-tolerant system in improved the reliability and safety by using hardware and software redundancy. Fault mask and detection, identification techniques are conditionally used with system's application areas. Here DMR system is operated with standby and fail-safe module method that has minimal hardware and software redundancy, then its reliablity and safety comparison is presented respectively. Also this paper proposed an effective methods of dealing with transient faults as compared system's MTTFs to transient faults tolerance capabilities of self-diagnosis program.

• Proceedings of the KIEE Conference
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• 2004.05a
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• pp.147-149
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• 2004

Although most of the people have studied English for a long time, their English conversation capability is low. When we provide them portable conversational-type English learners by the application of computer and information process technology, such portable learners can be used to enhance their English conversation capability by their conventional conversation exercises. The core technology to develop such learner is the development of a voice recognition and synthesis module under an embedded environment. This paper deals with voice recognition and synthesis, prototype of the learner module using a DSP(Digital Signal Processing) chip for voice processing, voice playback function, flash memory file system, PC download function using USB ports, English conversation text function by the use of SMC(Smart Media Card) flash memory, LCD display function, MP3 music listening function, etc. Application areas of the prototype equipped with such various functions are vast, i.e. portable language learners, amusement devices, kids toy, control by voice, security by the use of voice, etc.

• Journal of the Korea Safety Management & Science
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• v.3 no.4
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• pp.145-154
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• 2001

This paper deals with a network model for the efficient transportation of post and consists of the formulation based on the network model and the LINGO programming model including the operations of the post transportation. This network model is represented by using Time Space Network. The generalized formulation is built up with the input variables and the decision variables, which are defined on the basis of the network model. And LINGO programming model to be proposed with DB and LINGO is constructed in consideration of how to manage the post transportation and the intermodal transport. The results of the model implementation were represented on Time Space Network and they are analyzed and verified. The LINGO programming model is used as the module to be set in application software. Specifically with using GEOmania, GIS tool, the LINGO Model is applied to develop the application for Mail Transportation Decision Support System.

• Proceedings of the Korean Nuclear Society Conference
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• 2004.10a
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• pp.1243-1244
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• 2004