• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.281-283
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• 2012

유비쿼터스(Ubiquitous)를 주제로 현대사회의 흐름을 반영한 스마트하고 편리한 시스템 구축을 목표로 한다. 현재 국내 스마트폰 사용자가 2천만명을 돌파하였고, 경제활동인구 2,500만명 중 80%가 스마트폰을 사용하고 있는 것으로 나타난다. 이러한 시대 흐름에 맞는 스마트폰을 활용한 편리함과 가정의 보안을 고려, Mindstorms NXT를 활용한 출입문 관리 시스템 및 Smart Home Security 시스템이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.635-637
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• 2016

The purpose of this study was to apply other programming tools such as robots parish. The robot was utilized for Lego Mindstorms NXT. Programming tools were used to block generic programming tools were used in the NXT-G, was used as a simulation programming tools MSRDS, mobile App Inventor is a programming tool (App Inventor). It can lead to interesting effects of learning and learning based on three programming tool above.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.961-964
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• 2009

본 논문에서는 휴대폰과 LEGO Mindstorms NXT를 이용한 원격제어로봇 개발 모델을 제안하고 이를 기반으로 원격제어 로봇을 설계하였다. 제안하는 원격제어로봇 개발 방법은 LEGO Mindstorms NXT를 이용한 하드웨어 설계, 다양한 Tool을 이용한 소프트웨어 설계, Host System의 응용프로그램 개발로 구성되며, Host System으로는 WPAN Platform을 탑재한 휴대폰을, 통신 방식으로는 블루투스를 적용한다.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.146-151
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• 2009

A reward of the work which used physical computing in fields artistic modern installation is becoming large. But the example that used a robot cannot try to easily look it up on a tool of the drawing which isn't robot use for interaction. I will mention it about a user and a drawing system design and the developmental process which I can communicate with at these papers. I used a Mindstorm NXT system to have been said in Lego companies in the robot which composed working environment, and I classified it to virtual environments that I forecasted environmental actual drawing this, and I did simulate. I used an Icommand library to control a NXT system, and drawing used a processing library in actual environments for the purpose of in order to to express to virtual environment. I got image information, and I expressed to a vector method SVG file to bases for line drawing. This system can have already made it according to demand of a user as real-time communication is possible by bluetooth working together. These figures can work to one performance not being stopping to the results of already in processes doing drawing.

• Journal of Korea Society of Digital Industry and Information Management
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• v.10 no.2
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• pp.13-20
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• 2014

In this paper, we implemented the object scanning with nxtOSEK which is an open source platform. nxtOSEK consists of device driver of leJOS NXJ C/Assembly source code, TOPPERS/ATK(Automotive real time Kernel) and TOPPERS/JSP Real-Time Operating System source code that includes ARM7 specific porting part, and glue code make them work together. nxtOSEK can provide ANSI C by using GCC tool chain and C API and apply for real-time multi tasking features. We experimented the 3D scanning with ultra sonic and laser sensor which are made directly by laser module diode and experimented the measurement of scanning the object by knowing x, y, and z coordinates for every points that it scans. In this paper, the laser module is the dimension of $6{\times}10[mm]$ requiring 5volts/5[mW], and used the laser light of wavelength in the 650[nm] range. For detecting the object, we used the beacon detection algorithm and as the laser light swept the objects, the photodiode monitored the ambient light at interval of 10[ms] which is called a real time. We communicated the 3D scanning platform via bluetooth protocol with host platform and the results are displayed via DPlot graphic tool. And therefore we enhanced the functionality of the 3D scanner for identifying the image scanning with laser sensor modules compared to ultra sonic sensor.

• Advances in Traditional Medicine
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• v.5 no.2
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• pp.156-159
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• 2005

The protective effect of Naoxingtong (NXT) on rat cerebral microvascular endothelial cell (rCMEC) was investigated. rCMEC was injured in vitro by incubating for 4 hours at 100% NO in a hypoxia chamber. After treated with NXT-containing serum, the cellular viability rate (90.3%) was significantly elevated when compared with that of control group and the inhibitive rate of lactic dehydrogenase activity (9.2%) was far lower than the control group with dose-dependent effect. The results indicate that NXT can increase viability of rCMEC, and protect cell membrane from injury during hypoxia.

• 한국정보교육학회:학술대회논문집
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• 2011.01a
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• pp.23-28
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• 2011

It is possible to solve many structural problems such as the occurrence of a lot of errors involving misspelling which may occur during the learning of existing programming language, difficulty in grammatical expression and understanding, and difficulty in the expression of algorithm if the program learning tool of the department of computer education in a college of education is utilized as an educational robot. This study developed a learning model (curriculum and a textbook) so that students who major in computer education may easily learn programming by using the NXT software of a Mindstorms robot.

• The Journal of Korean Association of Computer Education
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• v.10 no.6
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• pp.19-27
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• 2007

To help programming learning, we have designed a robot programming course that improves complex cognitive abilities. The developed course was implemented in college programming classes and educational effects were analysed. While students are learning through LEGO Mindstorms NXT and NXT-G software, the students' problem solving abilities have been enhanced. The developed robot programming course gives positive effects on learners' problem solving abilities. It means that the developed course helps a learner in a cognitive domain.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.11-14
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• 2012

본 논문에서는 임베디드 시스템 기반 NXT 로봇을 제어하여 길찾기, 미로찾기, 장애물오르기 등의 주행을 수행하는 프로그램을 개발하는 것이다. 미로 찾기는 RBG 센서를 통해 트랙의 색을 구분하여 정해진 색을 따라 주행하는 하는 것이며, 장애물 미로구간에서는 NXT 로봇 자신이 장애물을 넘지 못한다는 것을 인식하여 미로를 찾아 빠져나가도록 초음파 센서를 이용한다. 초음파 센서로 자신이 통과할 수 있는 진입로로 판단되면 주행을 계속하며, 그렇지 않은 경우에는 좌우회전을 통해 미로구간을 통과한다. 마지막 계단식 장애물 구간에서는 접촉센서와 초음파 센서를 통해서 물체의 높이를 가늠하여, 접촉센서 값과 초음파 센서 값을 통해 프로그램은 통과 여부와 계단높이를 판단한다. 실험결과 로봇은 제어프로그램 시나리오에 따라 적절하게 수행함을 확인할 수 있었으며, 이와 같은 로봇 제어를 확대하면 사람을 대신하는 재난구조 활동, 전쟁시 지뢰탐지 및 적 정찰활동, 지하공동구 및 지하매설물 안전 점검활동 등을 수행하는 업무로 적용이 가능할 것으로 판단된다. 본 연구에서 사용한 로봇은 I-Brick이라는 마이크로프로세서를 통해 프로그램을 구동되며, 저 전력으로 I-Brick과 그와 연결된 센서와 서브 모터 등을 구동하고 제어하도록 설계하였다.

• The Journal of Korean Association of Computer Education
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• v.16 no.6
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• pp.111-120
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• 2013

Programming novices have various difficulties when they learn C language for the first time. Novices have a large burden for understanding of a C language grammar, and have a tendency to focus on the grammar rather than problem solving. Moreover, it requires programming domains to arouse student's interest for software development. This paper presents a programming environment for C languages education focusing on a problem solving. To this end, this paper defines Tiny-VPL that is a simple visual programming language for NXT robot programming and presents robot programming environment using Tiny-VPL. This paper also presents an environment for NXT robot programming using Mini-C language which is a subset of C language. For the purpose of helping to understand the C syntax and semantics, the visual and interactive conversion system of Tiny-VPL to Mini-C is provided. Our programming environment can arouse student's interest through robot programming and can be used effectively for C language education focusing on problem solving with graphical and interactive conversion of the visual language Tiny-VPL to the textual language Mini-C.