• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.51-53
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• 2011

Data collection and classification of products for factory automation is one of important processes. If conveyor systems corresponding to factory automation have crossroads, a lot of difficulties arise. These issues can be solved by using Zig-Bee technology capable of network configuration. Network with Zig-Bee is configured to coordinators, routers, and end-device. And Zig-Bee for up to 65,536 network formation is possible. In this paper, system to transmit the data of RFID tag to the host PC has been implemented, after connecting multiple EM4095 RFID system to Zig-Bee transmitter/receiver system.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04b
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• pp.853-856
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• 2002

인터넷이라는 거대한 네트워크에 연결되어 있는 시스템의 보안 상태를 주기적으로 점검하여 외부로부터의 공격에 취약한 부분을 보완하여 주는 일은 공격에 대한 방어를 위하여 가장 기본적인 일이다. 그러나 수많은 호스트가 상호 연결된 네트워크 관리 시스템에서 관리자가 각 시스템의 보안상 취약점을 전부 인지하고 이에 대한 보완을 수행하는 것은 상당히 어려운 일이다. 따라서 관리자의 수작업에 의한 취약점 분석 작업보다는 자동화된 관리 도구에 의한 취약점 분석이 효율적이다. 이에 본 논문에서는 네트워크 서비스인 HTTP, SMTP의 취약점을 원격에서 분석하는 시스템을 설계 및 구현하였다. WAVAMS는 에이전트와 독립된 mobile 코드의 이동에 의한 동적 분석 모듈의 추가로 가장 최근의 취약점을 신속하게 분석 할 수 있으며 확장성이 높다. 또한 웹 기반으로 설계되어 관리자가 용이하게 관리할 수 있다.

• Journal of KIISE:Software and Applications
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• v.30 no.3_4
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• pp.347-357
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• 2003

The web is an important source of information and most of Web applications are based on form documents in HTML-based form documents only play a role as user interfaces, and they do not involve the procedures or rules if business process which form document designers assume. However, from documents imply methods for treating documents, and these embedded procedural knowledge can be utilized.actively in automation of business process. In this respect, we Investigate the activeness of documents with cognitive science to automate business processes based on from documents. Through this, we have a new concept and applicability of active documents. Our active documents include business rules and declarative knowledge to support the automation of document processing. Also, we propose a processing framework for the active documents. The framework has two phases: build-time and run-time. in order to demonstrate the usefulness of the proposed framework, a prototype called ActiveForm is designed and implemented for requisition processing them in an inference engine can enhance the intelligence of Internet applications.

• Korean Journal of Cognitive Science
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• v.13 no.1
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• pp.41-51
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• 2002

In this paper, I describe a knowledge-based question-answering system and significance of the system with a view to constructing a fact database. The knowledge-based system takes advantage of existing NLP-resources such as conceptual structures of ontologies along with morphotogical, syntactic and semantic analysis. The use of conceptual structures allows us to select right answers through inferences basically made by expansions of concepts. However, the work of constructing factual knowledge requires a great amount of acquisition time in large-scale applications because of the nature of human interference. This is why the procedure of acquiring factual knowledge cannot be fully automated. Apart from efficiency considerations. the knowledge-based system deserves serious consideration, I point out benefits of the system and describe the whole procedure of building the system in terms of a fact database.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.5
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• pp.1609-1623
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• 2014

A number of studies have been conducted recently regarding the development of automation systems for the construction sector. Much of this attention has focused on earthwork because it is highly dependent on construction machines and is regarded as being basic for the construction of buildings and civil works. For example, technologies are being developed in order to enable earthwork planning based on construction site models that are constructed by automatic systems and to enable construction equipment to perform the work based on the plan and the environment. There are many problems that need to be solved in order to enable the use of automatic earthwork systems in construction sites. For example, technologies are needed for enabling collaborations between similar and different kinds of construction equipment. This study aims to develop a construction system that imitates collaborative systems and decision-making methods that are used by humans. The proposed system relies on the multi-agent concept from the field of artificial intelligence. In order to develop a multi-agent-based system, configurations and functions are proposed for the agents and a framework for collaboration and arbitration between agents is presented. Furthermore, methods are introduced for preventing duplicate work and minimizing interference effects during the collaboration process. Methods are also presented for performing advance planning for the excavators and compactors that are involved in the construction. The current study suggests a theoretical framework and evaluates the results using virtual simulations. However, in the future, an empirical study will be conducted in order to apply these concepts to actual construction sites through the development of a physical system.

• Korean Journal of Construction Engineering and Management
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• v.21 no.2
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• pp.98-106
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• 2020

Conventional method of PHC pile head cutting work has several challenges with regard to safety, convenience, productivity, and quality. To address such problems, a prototype of the all-in-one attachment-based PHC pile cutting robot is developed(Yeom, 2018). The Primary objective of this study are to develop a final prototype of all-in-one attachment-based PHC pile cutting robot and to analyze technical feasibility and field applicability of final prototype. According to the technical feasibility and field applicability analysis result, at least 74.2% of the respondents are selected positive answer about technical feasibility of the final prototype, at least 66.6% of the respondents are selected positive answer about field applicability of the final prototype. It is expected that when deployed onsite, the final prototype can not only increase the practical use but also improvement the work safety and productivity of work at the PHC pile head cutting job site.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.24 no.1
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• pp.215-219
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• 2014

C programming language has undefined behaviors, which cause unintended execution of a program. When a programmer adds sanity checks without caring about undefined behaviors, compilers may misunderstand and invalidate the sanity checks. Thus, we propose an automated system to detect invalidated sanity checks by marking sanity checks in source code and checking the marks in binary code.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06c
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• pp.163-166
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• 2007

인간은 문서를 읽고 그 내용을 머릿속에서 개념적으로 정리하여 몇 개의 명사를 이용하여 키워드로 인지한다. 본 논문은 이러한 점에 착안하여 문서를 대표하는 키워드를 추출하는 시스템을 설계하고 구현하였다. 본 논문에서는 단어의 개별적인 개념 정보를 동의어와 유의어 사전을 통해 주요 개념어를 추출하고, 추출된 개념어들 사이의 공기 관계를 계산하여 키워드로써의 중요도를 계산하고자 한다. 이를 통해 문서를 대표할 수 있는 키워드 후보를 생성하는 생성 규칙을 자동화하고 문서를 잘 대표할 수 있는 키워드 추출기를 제안하였다.

• Proceedings of the KSRS Conference
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• 2008.03a
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• pp.48-52
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• 2008

지형지물은 각각의 특징적 요인을 내포하고 있다. 이 특징적 요인들은, 공간해상도에 따라 정도의 차이가 있겠지만, 수집된 위성영상에도 반영된다. 이러한 요인들 중에서는 영상분류에 활용될 경우 영상 분류의 정확도를 높혀 주고, 때로는 이것이 거의 물체인식의 수준까지 기여할 수 있는 것들이 있다. 이 연구에서는 텍스춰 및 지형지물의 배열에 있어서 특징적 현상을 보이는 비닐하우스를 대상으로 spatial auto-corelation 개념을 기반으로 자동적으로 이를 인지하는 방법을 개발하였다. 사용된 알고리즘은 디지타이징과 같은 사람의 직접적인 개입이 없이 자동화된 방법으로 비닐하우스의 특정한 패턴이 반복적으로 나타나는 것을 감지할 수 있도록 개발되었다. 패턴의 인식에 더하여 비닐하우스의 기하학적 모양을 고려하는 방법도 도입하였다. 그럼으로써 비닐하우스의 추출에 단순히 화소 단위의 분석이 아닌 보다 객체지향적인 방법으로 비닐하우스를 추출하도록 하였다. 개발된 방법을 제주지역의 IKONOS에 적용시켜 본 결과, 연구대상지역 내의 비닐하우스가 매우 정확하게 적출되었다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.232-234
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• 2016

실내 환경은 해당지역의 날씨, 계절 등에 영향을 받고, 화재나 외부에서의 침입 등 불의의 사고가 발생할 수 있다. 본 논문은 센싱 정보와 실내 환경 조성 장치들 간의 통신을 통하여 쾌적한 환경조성의 자동화와 사고발생을 즉각적으로 인지할 수 있도록 하고, 스마트폰을 이용하여 환경에 대한 정보제공 및 제어를 할 수 있는 시스템을 제안한다.