• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.11
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• pp.2273-2276
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• 2009

As parents are interested in music education for infants in these days, they require systems to help these infants to actively play music. In this paper, we propose a keyboard solo system using a real time hand recognition method. In order to enable the infants to use the system easily, the proposed system plays some sounds whenever the infants move their fingers on a paper piano. For the purpose of minimizing cost to play music, the proposed system utilizes a general PC with only a paper piano, a web camera, and a speaker. With the aim of precisely and efficiently recognizing both a hand and each key on keyboard, the proposed system divides a recognition step into a hand recognition step and a keyboard recognition step. Also, the hand recognition step considers only skin color, and the keyboard recognition step considers only black and white without other colors.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.6
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• pp.1471-1476
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• 2013

This research examines how PBL(Problem-based Learning; PBL) system affects to 'Self-directed learning ability', by developing and applying it to the participants of "Science Cyber Conference" - the web based on-line debating learning program - among those students of the Affiliated Institute of Science gifted education of K University, for 16weeks. With this, also the cognizance of learners for the PBL class process are looked into together. After conducting the program applied with the web-based PBL strategy, the participants 'Self-directed learning ability' showed the remarkable change statistically (p<.05). Especially it showed the meaningful changes in six sections (p<.05), among those subdivided seven sections of 'Self-directed learning ability', with the one exception, 'Self-confidence as a Learner'. They also showed the positive response to the class which adopted the web-based PBL strategy.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.3
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• pp.475-481
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• 2017

This paper describes an in-depth study on the effect of students' writing of a reflection journal on academic achievement in Linux courses. For this purpose, students who took a Linux class were surveyed. Those participants were divided into two groups; an experimental group and a control group. Their academic achievement was compared and analyzed for this study and reflection journal was applied for 6 weeks after middle test. The results suggests that task achievement, expectation, learning persistence, self-efficacy, learning attitude, satisfaction in writing a reflection journal, and subject study were improved for the students who wrote a reflection journal. In addition to this, it suggests that the writing of a reflection journal has a significant effect on academic achievement in Linux subjects. It is meaningful for teaching skill of computer engineering education.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.374-376
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• 2018

In this study, we developed a mobile home robot using a face recognition method using a camera attached to a raspberry pie. It receives the real time image through the camera attached to the raspberry pie, recognizes the face of the person, and distinguishes the operation of the smart cool air temperature device according to the result. It is expected that the robot will be able to increase the energy utilization efficiency by allowing the robot to operate in cold and hot winds only where there is no human being, instead of operating the hot and cold air conditioner.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.319-322
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• 2018

Unplugged computing, the teaching and learning method, helps you learn the principles and concepts of computer science, and its advantage is that even elementary school students can easily understand it. Most of the North Korean Defector specialized alternative schools in the country have the purpose of having their students pass the qualification exam and be admitted to college. Therefore, the data, or information courses, are comprised of simple typing practices and basic office program handling. The purpose of the present study is to offer a teaching plan for these North Korean refugee adolescents, and we had assessed the courses in terms of its effectivity through a verification process. As a result, during the stage where we analyzed the answers from surveys, that they considered suggested curriculum for these specialized North Korean refugee alternative school was appropriate and have the potential to increase the student's satisfaction and interest.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.371-373
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• 2018

The function of the direction indicator is essential for the safety of bicycle trips and commuters. In this study, the direction indicator function was developed on the prefabricated bicycle using the Arduino. With the simple function of the Arduino, you can attach a switch to the handle to turn the direction indicator on and off. Since it is a simple function, it is judged that it is suitable for the maker activity that can make it by DIY by oneself having a bicycle. In this paper, we have opened the possibility of attaching a lot of services to bicycles through the proposed functions.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.11
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• pp.2145-2152
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• 2017

As the ubiquitous paradigm that allows users to access the Internet anytime and anywhere is expanding, the expectation and interest of the Internet is increasing. As interest in the Internet has increased, interest in open source hardware has also increased. As a result, the maker, who is a creator who actually uses the digital production tools to create a product that he thought, is emerging as a new trend. As these makers shared how to make products, the 'maker movement', an open source manufacturing movement, spread. In the case of the domestic market, the government's policy support is also stimulating the maker movement. However, compared to developed countries, there is not enough awareness and environment of maker culture, and only open platform hardware and software are used without special education / development equipment or kit for maker.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.6
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• pp.737-748
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• 2015

In modern people, smartphone is used in many fields of life styles in world wide. Its convenience and function are improved. Appropriate sleeping is essential to modern people. The overuse of smartphone threats sleeping of modern people. Result of this study shows that the deeper the addiction with smart phones the lower the quality of sleep, especially in troubles staying awake. The quality of sleep also associated with general factors including spending money, type of housing and degree of stress. There is a correlation between smart phone dependency and the quality of sleep and the more severe the dependency the more likely that the quality of sleep might fall. So we need adequate education to use smartphone for saving sleeping of modern people.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.2
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• pp.363-370
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• 2013

The purpose of this study is to investigate the parental distress of disabled children's fathers. The survey was conducted targeting 50 fathers with disabled children who are under 13 years old and undergoing rehabilitation treatment in G city And 38 questionnaires excluding data with inadequate answer were adopted. The questionnaire was composed of general peculiarities of disabled children and their fathers, and K-PSI-SF of parents. The results are as followings. First of all, among the parenting stress of disabled children's fathers, parental distress got the highest score and difficult child and dysfunctional interaction are next in sequence in the sub items of K-PSI-SF. Secondly, fathers' stress upon the children's general characteristics showed the significant difference depending on diagnostic categories and paralysis area. Thirdly, fathers' stress upon fathers' general characteristics showed the significant difference depending on their education level and age.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.8 no.4
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• pp.97-104
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• 2008

Recently the navigation service and LBS (Location based Services) using map supports much information services on mobile terminal. Also Internet Web sites support user much information. But, the user has the difficulty for acquiring the service and the various information based on map because of searching the many Internet sites. Accordingly, this paper supports a convergence information service model of various culture, education, tourism, sport and traffic for accessing synthesizing information based on map. And we design and implement this model using 공개 API. We present a convergence information service model of culture, tourism, sport and bus line information form tour destination and cultural place of Jeju province using the model. Additionally, we develop this service model using apache web server on Linux environment, PHP and JavaScript, MySQL database and Map 공개 API. As this service model supports a convenience action of culture and tourism for Jeju islanders and tourists.