• Korean Journal of Construction Engineering and Management
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• v.10 no.1
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• pp.136-145
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• 2009

The objective of the Intelligent Excavation System (IES) is to recognize the work environment and produce work plan and automatically control the excavator through integrating sensor and robot technologies. This paper discusses one of the core technologies of IES development project, development of 3D work environment modeling. 3D laser scanner is used for 3-dimensional mathematical model that can be visualized in virtual space in 3D. This paper describes (1) how the most appropriate 3D imaging system has been chosen; (2) the development of user interface and customization of the s/w to control the scanner for IES project; (3) the development of the mobile station for the scanner; (4) and the algorithm for the automatic registration of laser scan segments for IES project. The development system has been tested on the construction field and lessons learned and future development requirements are suggested.

• The Journal of Korean Institute for Practical Engineering Education
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• v.4 no.2
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• pp.162-170
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• 2012

It is very important for the robot to recognize its position to accomplish numerous tasks and to go to the goal. In this paper, we suggest Location Recognition System to distinguish robot's locations using land-mark and the odometer in the environment of sensor network. All in all, we created a basic intelligent robot, Location Recognition System, and Environment Sensor Modules; we verified the proposed algorithm through computer simulation.

• Journal of the Korean Institute of Intelligent Systems
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• v.18 no.4
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• pp.476-481
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• 2008

The necessity of intelligent surveillance system is gradually considered seriously from the space where the security is important. From this paper will load Network Camera in Mobile Robot based on embedded Linux and Goal is in the system embodiment will be able to track the intruder. From Network Camera uses Wireless Lan transmits an image with server, grasps direction of the intruder used Block Matching algorithms from server, transmits direction information and tracks an intruder. The robot tracks the intruder according to gets the effective image of an intruder. In compliance with this paper the system which is embodied is linked with a different surveillance system and as intelligent surveillance system there is a possibility of becoming worse a reliability.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.1159-1162
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• 2014

광고 시장 / 채널은 새로운 매체로 전환이 급격히 빠른 분야이다. 과거 TV, 신문 등과 같은 전통적인 매스미디어에서, 현재는 인터넷 및 모바일 광고와 디지털 사이니지를 통한 옥외광고가 주를 이루고 있다. 이에 따라 지속적인 마케팅 패러다임의 변화, 광고시장 / 로봇(서비스형, 지능형) 시장의 성장세를 기반으로 디지털 사이니지와 이동로봇을 결합하여 광고효과를 극대화 시킬 수 있는 커뮤니케이션 마케팅 기반의 신개념 광고기기(Mobile Digital Signage Robot 이하 MDSR)를 제안한다. MDSR의 기본 목표는 로봇이 설정된 루트를 자동으로 이동하며 주변상황을 인지하여 상황에 맞는 광고를 노출시키는 데에 있다. 또한 사용자의 관심을 유도하는 인터랙티브 기능과, 커뮤니케이션 콘텐츠를 탑재하여 주위 사람들의 이목을 집중시키며, 광고노출빈도가 높아지고 흥미유발에 기여하여 광고효과를 극대화 시키고, 이용자 편의성을 제고시킨다. 본고에서는 마케팅 / 디지털 사이니지 / 로봇시장의 실태와 현황을 알아보고, MDSR개발을 위한 HW 필요 탑재부품의 성능정보 수집 및 평가, 로봇 이동제어 및 상황인지와 광고전환을 위한 핵심 SW 알고리즘 개발, 마케팅 전략 및 활용 시나리오, 기대효과 분석 등을 연구해 MDSR 제작 및 활용 방법 등을 살펴본다.

• 전자공학회논문지 IE
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• v.47 no.1
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• pp.12-21
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• 2010

In this paper, we suggest Location Recognition System using Sensor Network; it distinguishes locations. Furthermore, this paper proposes Intelligent Navigation System which presents the proper route for the user. INS evaluates the user's preference, tendency and environmental state using Sensor Network Module and current driving information. This system also uses Soft-computing method to learn and infer the person’s preference and tendency. This paper defines Intelligent Assistance Module (IAM) which is a connector in between a user and a robot; it is portable. All in all, we created a basic intelligent robot, Location Recognition System, and Environment Sensor Modules; we verified the proposed algorithm through computer simulations.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.41 no.6
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• pp.155-164
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• 2004

Recently, we have remarkable developments in intelligent robot systems. The remarkable features of intelligent robot are that it can track user and is able to doface recognition, which is vital for many surveillance-based systems. The advantage of face recognition compared with other biometrics recognition is that coerciveness and contact that usually exist when we acquire characteristics do not exist in face recognition. However, the accuracy of face recognition is lower than other biometric recognition due to the decreasing in dimension from image acquisition step and various changes associated with face pose and background. There are many factors that deteriorate performance of face recognition such as thedistance from camera to the face, changes in lighting, pose change, and change of facial expression. In this paper, we implement a new sliding active camera system to prevent various pose variation that influence face recognition performance andacquired frontal face images using PCA and HMM method to improve the face recognition. This proposed face recognition algorithm can be used for intelligent surveillance system and mobile robot system.

• Journal of the Korean Institute of Intelligent Systems
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• v.26 no.1
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• pp.9-15
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• 2016

In this paper, we propose a method for verifying the location of the books in working order to enhance the effiency of library management. On open libraries, occasionally people relocate the book by mistake or intention after reading one. In this occasion, the book is assorted as a lost property and cannot be lended to others, even though it is still in the library. To solve this problem, the system we propose takes an image of the book selves by a mobile robot and extracts the classifying information of the book. After comparison between current location of the book and assigned location of the library database, information of the mislocated books is notified to the librarian.

• Journal of IKEEE
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• v.27 no.4
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• pp.610-616
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• 2023

In this paper, we implement an unmanned delivery robot system with Robot Operating System(ROS)-based mobile manipulator, and introduce the technologies employed for the system implementation. The robot consists of a mobile robot capable of autonomous navigation inside the building using an elevator and a Selective Compliance Assembly Robot Arm(SCARA)-Type manipulator equipped with a vacuum pump. The robot can determines the position and orientation for picking up a package through image segmentation and corner detection using the camera on the manipulator. The proposed system has a user interface implemented to check the delivery status and determine the real-time location of the robot through a web server linked to the application and ROS, and recognizes the shipment and address at the delivery station through You Only Look Once(YOLO) and Optical Character Recognition(OCR). The effectiveness of the system is validated through delivery experiments conducted within a 4-story building.

• Proceedings of the KSME Conference
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• 2003.04a
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• pp.792-798
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• 2003

This paper is about implementation of intelligent robot based on home network. Existing robots are mainly stand alone type. Home network is spreading rapidly and can play an important role as a path for informations between appliances in home. Robot can be more intelligent and have versatile functions with a junction of home network. By distribution of tasks through home network, robot doesn't have to process every task. In addition, robot can access to appliances through network as appliances are added continuously. In the future, smart space in which robot behaves on various types of network is in expectation. In this research, home network based system which consists of home server, embedded robot, and intelligent robot is proposed and implemented.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2015.11a
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• pp.158-158
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• 2015

전해동박(Electrodeposited Copper Foil)은 전기도금 공정으로 제조되는 얇은 구리 포일로서, 주로 TV, PC, 스마트폰 등 전자제품의 인쇄회로기판에서 전기신호를 전달하는 회로소재로 사용이 되며, 최근에는 모바일 IT, 전기자동차, 지능형 로봇, 그린 에너지 산업 등에서 필수적으로 적용되는 소재로 이용이 급증하고 있는 핵심소재이다. 모바일, Network 고속 통신 기술의 발전에 따라 Data 사용량의 폭증으로 고속/고주파 신호전송이 필요성이 증대되고 있으며 무선 충전 기술의 도입 및 웨어러블 기기의 보급으로 점차 FCCL도 3layer에서 2layer로 점차 그 수요가 바뀌어 가고 있다. 이에 따라 전해동박도 고속/고주파 신호 전송 및 고밀도 특성에 맞추어 저조도, 고밀착력 특성을 요구되는 방향으로 개발 되고 있으며 Line Space 가 기존 $25{\mu}m/25{\mu}m$ 패턴에서 $20{\mu}m/20{\mu}m$ 패턴으로 Fine pitch를 요구함에 따라 전해동박의 박막화, 저조도 고 밀착력 특성이 더 요구되고 있다.