• The Journal of Korean Association of Computer Education
• /
• v.16 no.6
• /
• pp.33-43
• /
• 2013

Compiler and language implementation courses have long been recognized as an important subject in Computer Science curricula. It is because not only the knowledge for a compiler plays important roles in understanding programming languages and systems but compiler technologies can be used in many applications. However it requires much effort to teach effectively it due to limited resources and time restriction. We present a compiler teaching model using Edu-IDEC which is a development environment of educational compilers. Edu-IDEC is a tool on the robot platform. It uses the Eclipse plug-ins and has functions like compiler developing tools, a reference compiler, visualization tool of syntax tree, visualization tool of object language, NXT robot controllers, and its simulator. We also present the evaluation results for our model by applying it to an actual class.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2019.05a
• /
• pp.436-438
• /
• 2019

Air hockey robots are machine vision systems that allow users to play hockey balls through the camera. The position detection of the hockey ball is realized by using the color information of the ball using OpenCV library. It senses the position of the hockey ball, predicts its trajectory, and sends the result to the ARM Cortex-M board. The ARM Cortex-M board controls a 2- Axis Cartesian Coordinate Robot to run an air hockey game. Depending on the strategy of the air hockey robot, it can operate in defensive, offensive, defensive and offensive mode. In this paper, we describe a vision system development and trajectory prediction system and propose a new method to control a biaxial orthogonal robot in an air hockey game.

• Journal of the Korean Institute of Intelligent Systems
• /
• v.14 no.6
• /
• pp.720-725
• /
• 2004

Robot systems have applied to manufacturing or industrial field for reducing the need for human presence in dangerous and/or repetitive tasks. However, robot applications are transformed from industrial field to human life in recent tendency Nowadays, final goal of robot is to make a intelligent robot that can understand what human say and learn by itself and have internal emotion. For example Home service robots are able to provice functions such as security, housework, entertainment, education and secretary To provide various functions, home robots need to recognize human`s requirement and environment, and it is indispensable to use artificial intelligence technology for implementation of home robots. In this paper, implemented robot system takes data from several sensors and fuses the data to recognize environment information. Also, it can select a proper behavior for environment using soft computing method. Each behavior is composed with intuitive motion and sound in order to let human realize robot behavior well.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2009.04a
• /
• pp.110-113
• /
• 2009

로봇을 이용한 체조 학습 시스템을 위해서는 영상을 통한 사람의 자세 인식기법이 필요하다. 본 논문에서는 Chamfer Matching을 이용한 두 영상간의 에지 윤곽 비교를 통해 자세를 인식한다. 또한, 비교대상이 되는 에지의 크기를 조절함으로서 여러 사람에 대한 신뢰성 있는 인식 결과를 얻는다. 실험결과를 통해 알 수 있듯 에지의 크기 조절에 의해 서로 다른 사람간의 비교값 편차를 줄임으로써 인식률을 향상시키고 인식 오류를 최소화 하였다.

• 제어로봇시스템학회:학술대회논문집
• /
• 2000.10a
• /
• pp.53-53
• /
• 2000

In this paper, we introduce the real-time skier-training software using DGPS. We used a PCS to receive the pseudorange correction messages from the reference station. We tested the performance of this system and could get a skier's position in real-time with high accuracy. It can help skier-trainers to monitor a skier's trajectory and teach him mote effectively This paper will show you how the system works and prove it has good performance.

• The Journal of Korean Association of Computer Education
• /
• v.18 no.6
• /
• pp.23-31
• /
• 2015

The main aim in software education is to improve problem-solving ability based on computational thinking with the healthy information ethics. For this purpose, many institutions have attempted various educational programs such as Educational Programming Language, Physical Computing, and Robot education. However, it is possible to obscure the essence of computer education for computational thinking if the computer education focuses on using certain special education programming language and products. Therefore, this paper suggests a method of algorithm education using RAPTOR which is a visual programming development environment and is based on flowcharts. In order to verify the effectiveness of the algorithms education using the RAPTOR, 16 high-school students were applied to an educational program for twelve hours on five steps and then we obtained positive results.

• Journal of IKEEE
• /
• v.23 no.1
• /
• pp.44-52
• /
• 2019

We implement an educational indoor autonomous mobile robot system that integrates LiDAR sensing information with RGB-D camera image information and exploits the integrated information. This system uses the existing sensing method employing a LiDAR with a small number of scan channels to acquire LiDAR sensing information. To remedy the weakness of the existing LiDAR sensing method, we propose the 3D structure recognition technique using depth images from a RGB-D camera and the deep learning based object recognition algorithm and apply the proposed technique to the system.

• Journal of The Korean Association of Information Education
• /
• v.13 no.1
• /
• pp.69-76
• /
• 2009

This paper proposes a teaching plan of programming language class for university of education students amusingly with LEGO Mindstorms NXT robot. The goal of class is not fragmentary knowledge acquirement but problem-solving of maze. This robot communicates with GUI named NXT-G installed in computer via USB. GUI is not text-based but icon-based programming tool. This paper designs a semester with 3 steps such as beginner, intermediate, high-rank. Beginner step is consists of learning of basic functions such as GUI usage and several sensors of robot. Intermediate step is consists of solving of maze problem with low complexity. High-rank step is consists of solving maze problem with medium and high complexity. All maze problem-solving have 3 process with algorithm, flowchart, and programming with stack.

• Journal of Digital Convergence
• /
• v.13 no.8
• /
• pp.1-8
• /
• 2015

This paper focuses on analyzing Korean language learning effect through the STEAM class using a robot which is targeted on multicultural elementary school students. For the purpose of it, the degree of difficulty and interest of how students feel has been measured. By using the programing tool of Korean language entering base, they learn the programming commands like as variable, data type, branching statement, loop statement, etc in Korean, the effect of Korean learning has been measured. It has been examined two interviews at the beginning and the end of the second semester to measure the effect of Korean language learning. As a result of this research, It can be realized that multicultural children who have similar linguistic characteristics and cultural sphere understood Korean language easily when they take the Korean language class by utilizing a robot, and the class had an effect on the acquisition of Korean language for multicultural children.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2019.01a
• /
• pp.383-385
• /
• 2019

영유아들은 호기심이 많아 어떤 것을 조작하며 경험을 통해 더욱 더 발달하게 되는데, 아이들의 인지발달을 더욱 정교하고 정확하게 발달할 수 있도록 도움이 되는 놀이를 통해 유도해 주어야 한다. 4차 산업시대를 맞아 로봇을 이용함으로써 호기심을 불러 일으켜 새로운 경험을 할 수 있도록 돕고, 더 나아가 소프트웨어에 대한 호기심까지 이끌어 낼 수 있을 것이라 기대한다. 본 논문에서는 무선 통신을 통해 프로세싱과 ROS를 연동하여 프로세싱에서 그린 그림을 로봇이 돌아다니며 바닥에 그릴 수 있는 S/W, H/W를 구현하였다.