• 정보처리학회논문지B
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• 제16B권6호
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• pp.435-442
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• 2009

본 연구에서는 특정개인에 맞춘 정황정보를 제공할 수 있는 개인화 메세지 주석시스템을 제안한다. 본 시스템에서 컨텍스트는 사용자의 신 분, 위치, 시간등을 포함하는 실체로 정의하며 사용자의 정체는 개인화된 메세지 생성의 주된 데이터이다. 컨텍스트를 감지하기 위해 증강현실 기술이 사용되며, 사용자의 위치를 추적하기 위해 실제 물체에 마커가 부착된다. 증강현실 기술은 인간의 지각과 상호작용을 강화시키는 아주 효과적인 주석 방법으로 사용될 수있다. 메시지는 가상 문자메세지 또는 3차원 가상물체일 수 있다. 실험결과는 제안된 시스템이 실시간으로 효과적으로 작동됨을 보여주며 또한 개인화 메시지를 제공하는 모바일 서비스로 사용될 수 있음을 보였다.

• 한국멀티미디어학회논문지
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• 제20권7호
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• pp.1038-1045
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• 2017

The increase in frequency and scale of natural disasters is the typical negative examples of the global climate change and the change of the human living environment. The damage caused by natural disasters in particular including human and physical damage is directly linked to the safety and properties of citizens. Besides, damage occurs directly or indirectly to the SOC facility, and the damaged SOC facility violates the citizens' safety rights. Therefore, a plan to provide prompt and effective risk map information by linking a 3D disaster information display system, which handles the information of the damage that may occur to SOC facilities at the time of disasters, with an on-site assistance application is suggested in this study. The prompt provision of risk map information is defined as a dynamic expression technology in this study. It also processes and compresses the system to display disaster information, a spreading system that can utilize on-site information, and a module developed to organically link with the DB system that builds information and relationships. Based on the module, the effective disaster information compression plan will be prepared, and the prompt information transmission system will be secured.

• 한국전자통신학회논문지
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• 제5권4호
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• pp.464-470
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• 2010

부동산 거래는 본원적으로 인간과 부동산과의 조화 및 관계개선이 요청되는 것이나 거래과정에 따라서 불의의 거래사고가 발생하여 오히려 그 관계가 악화되는 경우가 많다. 우리나라 부동산 거래관행은 부동산 거래와 관련해 체계적인 도움을 받기 매우 어렵고, 부동산을 거래하면서 필수적으로 검토해야 하는 권리관계 역시 세밀하고 정확하게 분석하기에는 한계가 있을 수밖에 없다. 따라서 부동산 거래로 인한 피해예방 및 손해배상제도를 보완하고, 중개거래활동에 있어 현재의 부동산 중개제도의 문제점을 해소하기 위해서 부동산 거래사고의 근본적인 원인중의 하나로 지적되는 공인중개사제도의 질적향상과 전문성을 제고할 것을 제안한다.

• 한국지능시스템학회논문지
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• 제14권3호
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• pp.304-309
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• 2004

본 논문에서는 편리한 방식으로 착용할 수 있으며 지능을 지니고 있는 시스템을 구현하고자 한다. 인간을 보조하는 역할을 수행함과 동시에 착용할 수 있는 장점을 지닌 시스템의 구현은 다양한 제어기에 적용될 수 있다. 이동 중인 로봇의 상태를 파악하고 인간을 대신하여 명령을 전달해주는 시스템의 구현이 가능해진 것이다. 본 논문에서는 이동 로봇의 주행 정보를 받아들여 충돌 회피 주행에 필요한 속도와 회전각을 판단하여 명령을 전달하는 시스템을 착용 형태의 장치를 이용하여 구현하였다. 웨어러블 장치의 지능을 구현하기 위해 계층적 퍼지 논리와 신경망의 학습 능력을 결합하였다.

• 한국전자거래학회:학술대회논문집
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• 한국전자거래학회 2005년도 e-Biz World Conference 2005
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• pp.286-292
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• 2005

Continual attempt to accumulate and apply information eventually gives birth to the concept of the 'Semantic Web'. Thus, the 'Semantic Web' can be defined as a product of mankind's desire to standardize information. A term of knowledge is used as information or data in computer science. These are regarded and are divided sometimes each other in terminologies that have similar meaning. If it is divided, knowledge is different from information. However, some kind of information in Knowledge Representation is called knowledge often if it can be expressed in computing system. Therefore, knowledge representation can talk as information representation. The purpose of the study is systematizing knowledge through knowledge representation that uses Delphi technique and ontology is designed by utilizing assistance editor called protege-2000 to construct semantic web environment's ontology. Level of interest regarding the construction and evaluation of search systems based on ontology is set to increase. If defined well, semantic can reflect human's thinking to knowledge information on web. Furthermore systematizes knowledge, search of information and comprehension about Jeju tour using present computer may be done intelligence.

• International Journal of Naval Architecture and Ocean Engineering
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• 제4권3호
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• pp.199-210
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• 2012

The recent researches on the automatic berthing control problems have used various kinds of tools as a control method such as expert system, fuzzy logic controllers and artificial neural network (ANN). Among them, ANN has proved to be one of the most effective and attractive options. In a marine context, the berthing maneuver is a complicated procedure in which both human experience and intensive control operations are involved. Nowadays, in most cases of berthing operation, auxiliary devices are used to make the schedule safer and faster but none of above researches has taken into account. In this study, ANN is applied to design the controllers for automatic ship berthing using assistant devices such as bow thruster and tug. Using back-propagation algorithm, we trained ANN with set of teaching data to get a minimal error between output values and desired values of four control outputs including rudder, propeller revolution, bow thruster and tug. Then, computer simulations of automatic berthing were carried out to verify the effectiveness of the system. The results of the simulations showed good performance for the proposed berthing control system.

• 한국전자통신학회논문지
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• 제8권12호
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• pp.1793-1802
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• 2013

음원분리 방법으로는 여러 가지가 제안되고 있으나 그 중에서도 주파수영역 두 귀 모델(Frequency Domain Binaural Model : FDBM)은 저 연산량과 울림 제거에 효과적이다. FDBM에 의한 두 귀 보청 시스템은 SNR이나 기여도 함수(Coherence function)에 의한 평가로 하기 때문에 인간의 청취특성을 고려하지 않고 있다. 본 논문에서는 음질의 문제 해결을 위하여 FDBM의 음원분리 성능평가를 하였다. SNR, 기여도 함수, PESQ의 세 가지 수법을 이용하여 기본 특성에 대하여 시뮬레이션을 통하여 확인하였다. 모든 결과가 FDBM에 의해 좌우 채널간 평가치의 차가 작게 되었고, 좌우 채널이 거의 같은 레벨까지 개선되었음을 확인하였다. 그리고 음원방향을 바꾸고 음원 수를 증가시킨 경우에도 일정한 개선이 보였다. SNR과 기여도 함수, PESQ의 결과를 비교하면 PESQ의 평가에서는 입력 SNR를 변동시킨 경우에도 거의 모든 조건에서 분리에 의한 평가가 개선되었다.

• 한국생활과학회지
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• 제19권2호
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• pp.311-323
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• 2010

This study includes definitions and major issues relating to product safety, and reviews about product safety laws of Korea and of other countries. In addition, this study suggests several ideas for a future governmental policy concerning product safety and the government policies to guide in securing consumers' safety of products. First, we need to set up consumer safety policies and laws dealing with complex consumer safety issues and to integrate existing laws for the safety of products. Second, opening a consumer safety agency and training workers who have relation to the safety policy, as a profession, are necessary. Third, it is required to redefine the product safety guidelines, strengthen the safety policy and to minimize safety regulations by the government directly. Fourth, each product of the safety management policies must be regularly evaluated and given feedback for improving its effectiveness. Fifth, information gathering, disclosing, and having a feedback system related to product safety should be rebuilt for the effective management of unsafe products. In addition, laws and the aims of product safety management being changed to focus on the consumers, control on imported products, collaboration with network and mutual-assistance systems of product safety-related agencies including international organizations and major countries and taking leading roles in the world are essential.

• 로봇학회논문지
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• 제12권2호
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• pp.116-123
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• 2017

Wearable robots are receiving great attention from the public, as well as researchers, because its motivation is to improve the quality of lives of people. Above all, complete paraplegic patients due to spinal cord injury (SCI) might be the most adequate target users of the wearable robots, because they definitely need physical assistance due to the complete loss of muscular strength and sensory functions. Furthermore, the medical care of complete paraplegics by using the wearable robots have significantly reduced the mortality rate and improved the life expectancy. The requirements of the wearable robot for complete paraplegics are actuation torque, locomotion speed, wearing sensation, robust gait stability, safety, and practicality (i.e., size, volume, weight, and energy efficiency). A WalkON Suit is the wearable robot that has satisfied the requirements of the wearable robot for complete paraplegics and participated in the powered exoskeleton race of Cybathlon 2016. In this paper, configuration of the WalkON Suit, human-machine interface, gait pattern, control algorithm, and evaluation results are introduced.

• 로봇학회논문지
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• 제15권4호
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• pp.323-329
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• 2020

This paper presents a control algorithm for a wearable walking aid robot for subjects with paraplegia after stroke. After a stroke, a slow, asymmetrical and unstable gait pattern is observed in a number of patients. In many cases, one leg can move in a relatively normal pattern, while the other leg is dysfunctional due to paralysis. We have adopted the so-called assist-as-needed control that encourages the patient to walk as much as possible while the robot assists as necessary to create the gait motion of the paralyzed leg. A virtual wall was implemented for the assist-as-needed control. A position based admittance controller was applied in the swing phase to follow human intentions for both the normal and paralyzed legs. A position controller was applied in the stance phase for both legs. A power controller was applied to obtain stable performance in that the output power of the system was delimited during the sample interval. In order to verify the proposed control algorithm, we performed a simulation with 1-DOF leg models. The preliminary results have shown that the control algorithm can follow human intentions during the swing phase by providing as much assistance as needed. In addition, the virtual wall effectively guided the paralyzed leg with stable force display.