• International Journal of Contents
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• v.14 no.1
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• pp.28-33
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• 2018

In this paper, we design and implement a distributed, moving objects management system for processing locations and sensor data from smart black boxes. The proposed system is designed and implemented based on Apache Kafka, Apache Spark & Spark Streaming, Hbase, HDFS. Apache Kafka is used to collect the data from smart black boxes and queries from users. Received location data from smart black boxes and queries from users becomes input of Apache Spark Streaming. Apache Spark Streaming preprocesses the input data for indexing. Recent location data and indexes are stored in-memory managed by Apache Spark. Old data and indexes are flushed into HBase later. We perform experiments to show the throughput of the index manager. Finally, we describe the implementation detail in Scala function level.

• International Journal of Contents
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• v.11 no.4
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• pp.25-30
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• 2015

The objective of this study is to identify the current state of usage and needs for Smart Technology (ST) in the elderly care facilities based on the point of view of staff members. Using survey via mails, data were analyzed with responses from top- or middle-level staff members working in 171 elderly care facilities located in Seoul, Gyeonggi-do, and Chungcheongnam-do. Results indicated that the most needed smart technology was home automation, followed by nurse call system and health monitoring. The technology with the highest feasibility was health monitoring, followed by nurse call system and video phone. Staff members in higher positions working in the elderly care facilities had the highest expectation in improving the image of their facilities by using ST, while they had low expectation for the fact that ST may increase the locus of control of the elderly. This study implies that ST implementations may vary depending on the level of responsibility of staff members and ST how people responsible for the elderly care facilities subjectively perceive the ST.

• International Journal of Contents
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• v.8 no.3
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• pp.12-19
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• 2012

This study investigated what factors affect consumers' decision making concerning the adoption of smart TVs. For this purpose, the integrated adoption model that consists of six major constructs from the diffusion of innovation theory (DIT), the technology acceptance model (TAM), and the model of innovation resistance(MIR) was employed. To collect data, an online survey was used. Data collected were analyzed with the structural equation model (SEM). Findings showed that the innovativeness has a positive influence on the both of perceived usefulness and perceived ease of use. It was also shown that both of perceived usefulness and perceived ease of use affect the intention to use smart TVs in a positive way. The innovation resistance has a negative influence on the intention to use. The mediating role of the innovation resistance was also found. The implications of these results are discussed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.442-444
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• 2015

While Internet of things(IoT) era arrives, the communication capable world between various smart devices is realized. In this study, to reduce the inconvenience of daily life, in research on a smart refrigerator, it is possible to confirm the presence or absence of abnormality of the contents by sending the expiration date of the contents in the refrigerator to the user's smart phone.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.271-272
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• 2018

4차 혁명을 맞으며 최대 키워드인 사물인터넷(IoT)이 부각되면서 다양한 분야의 산업에 IoT 제품들이 소비시장에 등장하고 있다. 사물인터넷(IoT) 기술은 최근 주택의 주거 공간 내에서 삶의 질을 높여주는 스마트홈(Smart Home)에 적용 확대되고 있다. 이에 본 연구는 국내 스마트홈(Smart Home) 기술현황을 분석하고자 하며, 그 분석 대상을 국내 주요 3개의 이동통신사의 스마트홈(Smart Home) 사물인터넷(IoT) 홈 서비스로 한다. 본 연구는 국내 주요이동통신사에서 제공하고 있는 사물인터넷(IoT) 홈서비스의 기술사례를 통해 안전성, 편리성, 절약성 3가지의 유형으로 나누어 분석하였다.

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.467-468
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• 2019

Alcoholics Anonymous(AA)/Narcotic Anonymous(NA)의 12 단계 중독 회복 프로그램과 선배 회복자의 지지는 중독 치료 모델에서 성공적인 회복에 기여하는 주요한 역할을 한다. 12단계 중독회복 프로그램의 특징은 특정 종교를 기반으로 하지 않지만 자신의 무력감과 영적 존재에 대한 인정을 바탕으로 한다. 어떤 이들에게는 성공의 요인으로 작용하는 이 특징이 일부 참여자에게 거부하게 하는 요인으로 작용한다. 또한 AA/NA의 오프라인 모임에서 발생하는 다양한 부작용으로 인해 사회적 지지가 필요하지만 사회적 지지를 포기하는 이탈이 발생하여 참석자의 회복에 지장을 주기도 한다. 이에 서구 여러 나라에서 AA/NA와 유사하지만 오프라인뿐만 아니라 온라인 모임이 가능하고, 외부의 존재에 대한 의존이 아닌 중독자 스스로가 중독을 극복하게 도와주며 다양한 형태의 중독의 문제를 다루도록 돕는 SMART(Self Management and Recovery Training) Recovery가 대안으로 부상하였다. 따라서 본 연구에서는 중독회복에 상호자조집단의 도움이 필요하지만 12단계 프로그램이나 오프라인 모임 외에 다른 대안이 없는 국내 상황에 대한 새로운 대안으로 SMART Recovery에 대한 정보와 접근방법들을 심도 있게 탐색하고자 한다.

• Journal of Multimedia Information System
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• v.8 no.4
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• pp.243-250
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• 2021

Instructional contents are used to demonstrate a technical process to teach and walkthrough certain procedures to carry out a task. This type of informational content is widely used for teaching and lectures in form of tutorial videos and training videos. Since there are questions and uncertainties for what could be the killer application for the novel wearables, we propose a self-instruction training application on a smart glass to utilize already-available instruction videos as well as public open data in creative ways. We design and implement a prototype application to help users train by wearing smart glasses specifically designed for two concrete and hand-constrained use cases where the user's hands need to be free to operate. To increase the efficiency and feasibility of the self-instruction training, we contribute to the development of a wearable killer application by integrating a voice-based user interface using speech recognizer, public open data APIs, and timestamp-based procedural content navigation structure into our proof-of-concept application.

• Journal of The Korean Association of Information Education
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• v.17 no.2
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• pp.225-232
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• 2013

The smart education is performed in the education field, but the contents related to the subject class performed in the various smart devices are insufficient and it is necessary to continue training teacher and learner for the app development education. Therefore this study developed and applied the contents production education program of the game type web app around elementary science 6 grade 1 term utilizing Storyline authoring tools, similar to PowerPoint and be executable in the various devices. After educating students, we investigate the convenience of the use of Storyline, satisfaction level of learning contents work activity, and the continued availability, and etc,. They are interested in the activity of the smart educational contents development and they wished to participate in the continued app development education and activity in spite of it make difficulty for using English menu.

• Journal of Digital Contents Society
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• v.19 no.7
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• pp.1237-1244
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• 2018

Currently the bottleneck in virtual reality's commercialization might be that high cost VR equipment is needed and interesting VR contents are not enough. The purpose of this paper is to solve these problems by implementing low-cost VR system with wireless controller and HMD(Head Mounted Display) using a smart phone and PC. The functions of real HMD are simulated by utilizing the display and embedded sensors of a smart phone. In that situation PC is in charge of processing huge data and is communicated with smart phone. And wireless controller is designed to make VR user's movement to be free. In addition, we made the several VR contents for testing our prototype system directly. Easy access to VR equipment could induce increasing number of users and investment. And it will be a big step toward improving VR technology and its commercialization.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.4
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• pp.481-488
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• 2020

In recent years, realistic contents technology such as virtual reality, augmented reality, and mixed reality has been spreading in travel and tourism industries, and hence there have been various smart tourism AR, VR contents developed. In the past, people mainly used books and Internet for travel, but the use of VR, AR and MR technologies will be used more for consumption of cultural leisure contents in the future. This study describes the Mixed Reality based Baekje Neungsa Cultural Heritage On-Site Guide System to accelerate smart tourism. In this study, the immersive mixed reality HMD was used to provide visitors with more intuitive and effective information about the historical, cultural and architectural values of Baekje Neungsa through virtual experiences. The cultural heritage on-site guide system module supports various Meta Data services and can be easily used for mixed reality content development by designating Meta Data scripts. This research can make contributions to the development of mixed reality based smart tourism contents.