• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권8호
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• pp.3958-3971
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• 2016

With Internet of Things (IoT) technology, home environment becomes smarter than ever. Not only smart devices such as smart phone or smart TV, but also various IoT devices including sensor, smart thermostat, and smart scale has now become very common on the market. These devices have connectivity to the Internet, so that user can read data from the device or control the device using Internet technology. However, due to diversity of smart home requirements, device collaboration in smart home remains a challenging task still. Usually smart home is built with various technologies to fulfill its own purpose, and these purposes cover very wide area from controlling low-power sensor devices to controlling high-performance devices like smart TV and smart phone. This variety of smart home requirements makes smart home very complicated due to mixed network architecture, protocol and technology. In this paper, a framework to enable managing and collaborating heterogeneous IoT devices in smart home environment is proposed. Several programming models are defined in the proposed framework to make application development for heterogeneous devices more intuitive. The proposed framework has been implemented as a web service, and a case study with real-world smart home IoT devices is presented.

• Journal of Information Science Theory and Practice
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• 제9권3호
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• pp.1-13
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• 2021

In the current smart device-based information environment, information utilization is closely related to social capital. Additionally, the smart divide that occurs owing to the differences in use of smart devices has a significant influence on social capital. In this respect, this research empirically analyzed how the smart divide affects social capital construction. The study found that the level of and proficiency in using smart devices and diversity of the information formats used through smart devices affect social capital construction. Further, people who fully utilize smart devices can enhance their participation in social activities, social networks, and reciprocal activities, leading people to construct social capital in a wider range. Contrarily, those who are unable to use smart devices adequately may be disadvantaged in terms of the opportunity to construct social capital and share public interests. Thus, to maximize the intrinsic value of social capital, it is necessary to consider the factors of the smart divide as a complicated and multi-faceted digital divide and the ways to utilize social capital as a driving force for integrating society, and not as a mechanism for dividing members of society.

• 디지털산업정보학회논문지
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• 제14권3호
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• pp.11-20
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• 2018

Smart devices refer to various devices and control equipment such as health care devices, imaging devices, motor devices and wearable devices that use wireless network communication (e.g., Wi-fi, Bluetooth, LTE). Commercial services using such devices are found in a wide range of fields, including home networks, health care and medical services, entertainment and toys. Studies on smart devices have also been actively undertaken by academia and industry alike, as the penetration rate of smartphones grew and the technological progress made with the fourth industrial revolution bring about great convenience for users. While services offered through smart devices come with convenience, there is also various security threats that can lead to financial loss or even a loss of life in the case of terrorist attacks. As attacks that are committed through smart devices tend to pick up where attacks based on wireless internet left off, more research is needed on related security topics. As such, this paper seeks to design an access control method for reinforced security for smart devices. After registering and authenticating the smart device from the user's smart phone and service provider, a safe communication protocol is designed. Then to secure the integrity and confidentiality of the communication data, a management process such as for device renewal or cancellation is designed. Safety and security of the existing systems against attacks are also evaluated. In doing so, an improved efficiency by approximately 44% compared to the encryption processing speed of the existing system was verified.

• Human Ecology Research
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• 제56권6호
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• pp.541-553
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• 2018

This study examined the influences of infants' age for the first use of smart devices and the amount of time to use them on the externalizing problem behavior as well as investigated whether maternal managing behavior (setting rules on accessing smart devices and monitoring their child's use of smart devices) had moderating effects. The study participants consisted of 521 three to six year old infants (235 boys and 286 girls). The data were analyzed by means of descriptive statistics and a hierarchical regression. The results of this study indicated that the age at first use of smart devices and maternal managing behavior had significant effects on the externalizing problem behavior of infants. The earlier the infants first used smart devices, the higher the level of externalizing problem behavior. Externalizing problem behavior was also found to be higher when the mothers showed no managing behavior. Second, maternal managing behavior moderated the relation between the age at first use of smart devices and the externalizing problem behavior of infants. The effects of the age at first use of smart devices on the externalizing problem behavior of infants were greater when the mothers did not set rules regarding the use of smart devices and did not supervise children when using smart devices.

• 지식경영연구
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• 제22권3호
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• pp.173-199
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• 2021

스마트폰 및 태블릿 등 스마트기기 사용이 보편화되면서, 1세 부터 스마트기기를 사용하는 등 사용 시작 시기가 앞당겨 지고 있으며, 영유아 및 미취학 아동의 스마트기기 사용률이 지속적으로 증가하고 있다. 즐거움과 지식 획득의 편리한 수단이 된 스마트기기는 그 혜택만큼이나 중독 및 과의존의 부작용이 이슈화 되고 있다. 본 연구에서는 영유아의 스마트기기 과의존 현상에 주목하고, 어린 아이들에게 지대한 영향을 줄 수 있는 부모의 스마트기기에 대한 인식 및 통제·관찰 행동 측면에 초점을 두어 연구를 수행하였다. 본 연구에서는 영유아 자녀의 스마트기기 과의존이 결과적으로 아이의 활동성, 감정적 예민성, 사회성 측면의 특성에 어떻게 영향을 주는지 고찰하였고, 영유아의 스마트기기 과의존에 대한 영향요인과 그 결과가 조절변수(부모의 자녀 스마트기기 사용 통제방법, 지도관찰 방법, 주 이용 콘텐츠 종류)에 따라 달라질 수 있는지 탐색적 분석을 시도하였다. 이를 통해, 영유아 자녀들을 위한 부모의 효과적인 스마트기기 활용 방식에 대한 가이드라인을 제시하고 유의해야 할 시사점을 제공하고자 한다.

• 인터넷정보학회논문지
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• 제14권3호
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• pp.47-55
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• 2013

최근 다양한 스마트기기가 등장하고 교육 패러다임의 변화가 대두되면서 이에 맞는 교육환경과 교육방법의 변화가 요구되고 있다. 본 연구에서는 스마트교육의 도구적 활용 측면에서 스마트기기가 어떻게 활용되고 있는지를 알아보기 위하여 교사 개개인의 일반적인 활용 실태를 분석하고, 이를 통한 교육적 활용 방법에 대해 논의하고자 한다. 강원지역 초등교사 221명을 대상으로 설문조사를 통해 분석한 결과 교사의 87.7%가 스마트기기를 이용하고 있으며, 교사들은 일상생활에서 교사라는 특성변인과 관계없이 일반사용자와 유사한 이용을 하고 있는 것으로 나타났다. 스마트기기를 수업에 이용하게 된 동기에는 혁신성, 유용성, 용이성 등이 작용하였고, 수업에 이용하고자 하는 의도는 교과목별, 학습형태별, 교수-학습 전개별로 기기의 기능을 적절히 활용할 수 있기 때문인 것으로 나타났다. 그러나 기기 사용에 대한 효능감이 높다고 해서 수업에의 활용도가 함께 높지는 않았다. 이를 개선하여 교육현장에서 스마트기기를 수업에 활용할 수 있도록 하기 위해서는 교사의 스마트기기에 대한 사용자 연수와 함께 교사들이 수업방법을 변화시키기 위한 의지와 태도의 변화가 중요함을 시사한다. 본 연구의 결과는 초등교사 대상 스마트기기의 교육적 활용 방안을 마련하기 위한 추가 연구의 기초 자료가 될 수 있을 것이다.

• Advances in nano research
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• 제16권2호
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• pp.155-164
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• 2024

The rapid evolution of intelligent sports equipment and gadgets has led to the transformation of smartphones into personalized coaching devices. This transformative role is central in today's technologically advanced landscape, addressing the needs of individuals with contemporary lifestyles. The development of intelligent sports gadgets is geared towards elevating overall quality of life by facilitating sports activities, workouts, and promoting health preservation. This categorization yields two primary types of devices: smart sports devices for exercise and smart health control devices, which encompass functionalities such as blood pressure monitoring and muscle volume measurement. Illustrative examples include smart headbands, smart socks, smart wristbands, and smart shoe soles. Significantly, the global market for smart sports devices has garnered substantial popularity among enthusiasts. Moreover, the integration of sensors within these devices has instigated a revolution in group and professional sports, facilitating the calculation of impact intensity and ball speed. The utilization of various types of smart sports equipment has proliferated, encompassing applications in both sports' performance and health monitoring across diverse demographics. This article conducts an assessment of the application of nanotechnology in the continuous modeling of the magnetic electromechanical sensor integrated within smart shoe soles, with a specific emphasis on its implementation in soccer training. The exploration delves into the nuanced intersection of nanotechnology and sports equipment, elucidating the intricate mechanisms that underlie the transformative impact of these advancements.

• International journal of advanced smart convergence
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• 제6권4호
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• pp.56-59
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• 2017

In this paper, we design a covert channel based on instruction gadgets in smart sensing devices. Unlike the existing convert channels that usually utilize diverse physical characteristics or user behaviors or sensory data of smart sensing devices, we show that instruction gadgets could be exploited for covert channel establishment in smart sensing devices. In our devised covert channels, trojan smart sensing devices exchange attack packets in such a way that they encode an attack bit in attack packet to a series of addresses of instruction gadgets and decode an attack bit from a series of addresses of instruction gadgets.

• 한국융합학회논문지
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• 제10권7호
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• pp.33-37
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• 2019

스마트 폰을 비롯한 스마트 TV 등 여러가지 스마트 기기의 보급으로 인해 스마트 기기 간의 연동에 대한 필요성이 증대되고 있다. 본 논문에서는 스마트 TV와 스마트 폰을 연동하기 위한 게임 프레임워크를 제시하고, 시범 콘텐츠를 통해 제시된 프레임워크의 효용성을 증명하였다. 스마트 기기 사이의 연결 문제는 기본적으로 이기종 간의 연결 문제로 볼 수 있다. 이러한 문제는 이기종 기기 사이의 데이터 송수신과 보안까지 고려해야 하기 때문에, 핵심적인 데이터는 클라우드 컴퓨팅 개념을 도입하여 서버에 저장하고 스마트TV에서는 이 데이터를 이용해 게임을 수행하는 형태로 작동한다. 제시된 프레임워크는 게임을 비롯한 여러 가지 관련 분야에 적용될 것으로 예상된다.

• Journal of Information Processing Systems
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• 제16권3호
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• pp.733-741
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• 2020

A smart dust monitoring system is useful for obtaining information on rough terrain that is difficult for humans to access. One of ways to deploy sensors to gather information in smart dust environment is to use an aircraft in the Amazon rainforest to scatter an enormous amount of small and cheap sensors (or smart dust devices), or to use an unmanned spacecraft to throw the sensors on the moon's surface. However, scattering an enormous amount of smart dust devices creates the difficulty of managing such devices as they can be scattered into inaccessible areas, and also causes problems such as bottlenecks, device failure, and high/low density of devices. Of the various problems that may occur in the smart dust environment, this paper is focused on solving the bottleneck problem. To address this, we propose and construct a three-layered hierarchical smart dust monitoring system that includes relay dust devices (RDDs). An RDD is a smart dust device with relatively higher computing/communicating power than a normal smart dust device. RDDs play a crucial role in reducing traffic load for the system. To validate the proposed system, we use climate data obtained from authorized portals to compare the system with other systems (i.e., non-hierarchical system and simple hierarchical system). Through this comparison, we determined that the transmission processing time is reduced by 49%-50% compared to other systems, and the maximum number of connectable devices can be increased by 16-32 times without compromising the system's operations.