• 한국통신학회논문지
• /
• 제38C권5호
• /
• pp.454-463
• /
• 2013

스마트폰은 이미 보편화되었고 가전기기나 자동차 등의 각종 생활기기에 통신장치 및 센서가 내장되어 스마트폰과 연동되는 스마트 기기들이 연구 개발되고 있다. 또한 현재는 스마트폰을 이용한 단순한 리모컨이나 원격 제어장치, 사용자 인터페이스의 수준이지만 향후에는 스마트폰에 지능화 기술이 융합되어, 사용자나 기기, 생활환경의 속성을 반영하여 자동으로 기기들이 개인 맞춤형으로 설정되는 개인 환경 서비스 기술이 활성화될 것이다. 본 논문에서는 관련 서비스와 시스템 구조, 요소 기술에 관해 기술한다.

• 한국전자통신학회논문지
• /
• 제5권4호
• /
• pp.480-485
• /
• 2010

본 논문에서는 친환경 스마트가전 응용시스템을 위한 모바일 로봇 플랫폼인 Ecobot을 개발하였다. Ecobot은 Zigbee 네트워크로 홈 네트워크를 구성한 친환경 스마트 가전 응용시스템에서 쾌적 환경 감시 및 안내의 역할을 수행한다. 쾌적 환경을 위해 환경 감시 센서가 탑재되어 있으며, Zigbee 네트워크를 통해 스마트 가전기기와 연동하여 스마트 가전기기를 제어하여 쾌적 환경을 유지시킨다. 또한 URG-04LX 레이저 거리 센서를 이용하여 자율주행 및 충돌 회피를 통해 실내 환경을 감시하게 된다.

• 품질경영학회지
• /
• 제46권3호
• /
• pp.707-716
• /
• 2018

Purpose: This study aims to analyze the management performance and production efficiency of strawberry farmers who introduced smart farming, one of the primary symbols of the fourth industrial revolution in the agricultural sector. Methods: We conducted an empirical survey of strawberry farms using smart farming and analyzed production efficiency using DEA method. Results: First, difficulties for strawberry farmers introducing smart farming included time and money spent on parts replacement and additional costs due to compatibility problems with existing facilities after the adoption. Second, strawberry farmers using smart farming increased their total income by producing higher yield and improving quality thanks to the competent growth management. Third, the analysis of production efficiencies before and after smart farming found improvement in technical efficiency, pure technical efficiency, and scale efficiency. But, the gaps in technical and scale efficiencies among the farms widened. Conclusion: Based on the results above, following policy suggestions are offered. First, an environment control technology suitable for strawberry farming needs to be developed. Second, the smart farming technology needs to be standardized by the government. Third, new smart farm models need to be developed to accommodate to the facilities and environment in Korea through collecting big data including high-quality data on the environment, growth, and yield. Fourth, continuing education needs to be provided to narrow the gap in smart farming technology among strawberry farmers.

• 정보보호학회논문지
• /
• 제25권2호
• /
• pp.479-487
• /
• 2015

IT 발전에 따라 스마트홈 서비스는 네트워크 기반의 스마트 디바이스를 통해 원격 서비스, 모니터링 서비스 등 다양한 서비스를 제공하고 있다. 그러나 스마트홈 환경에서는 악성 디바이스를 통한 데이터 위 변조, 불법 인증, 프라이버시 침해 등과 같은 보안 위협들이 존재한다. 이러한 보안 위협들에 대응하기 위한 스마트홈 환경에서의 보안에 대한 연구가 활발히 진행되고 있으나 디바이스 관리를 위한 연구는 초기 단계에 머물고 있으며, 스마트홈 환경에서의 그룹키 관리에 대한 연구가 부족한 실정이다. 따라서 본 논문에서는 스마트홈 환경에서 안전한 디바이스 관리를 위한 그룹키 관리 기법을 제안한다.

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

• 한국컴퓨터정보학회논문지
• /
• 제24권8호
• /
• pp.37-43
• /
• 2019

The existing smart farm technology has been systematized for the mass production rather than the consumer. There are many problems such as economical aspect to apply to actual rural environment due to aging. The purpose of this study is to apply smart farm technology based on the applicability of population aged in rural areas. Due to the heat wave, the crops in general greenhouse cultivation facilities suffered from damage such as sunlight damage. To minimize such damage, adjust the temperature and humidity environment or install a light-shielding film. However, the workers in the rural areas are aging and the elderly who are farming alone have a lot of difficulties in doing so. In the case of people with weak physical strength, there is a danger that they may lead to safety accidents when carrying heavy loads. In this paper, we propose 'Smart Palm capable of automatic transportation function', applying small smart vehicles that follow workers to existing smart farms to improve and prevent these problems. It is a smart farm that performs the control functions of the existing smart greenhouse environment, installs the rail for each trough, and has a vehicle that follows the worker. The smart app can directly control the greenhouse and the vehicle remotely manually.

• Journal of Multimedia Information System
• /
• 제9권1호
• /
• pp.51-60
• /
• 2022

This paper raised the need to examine how the online education environment triggered by COVID-19 and the smart learning environment can be established in consideration of the improvement of education and learning through learning analysis. Many studies are being conducted in Korea, and the Ministry of Education is continuously striving to build a smart school by promoting strategies for promoting smart education on the way to a talent powerhouse. Nevertheless, there is no unified definition of smart learning, and it can be seen as customized (individualized) learning using smart devices. However, most of the discussions on the construction of smart schools so far have limitations in that they are limited to physical spaces. Accordingly, the opinions of teachers and learners were not sufficiently reflected in the establishment of the facility. This study intends to study smart learning in various departments. In addition, the subjects students in charge of the co-researcher of this study were analyzed. The total number of subjects was 951, and 434 responded to this study survey. In addition, students were well accepting the online environment, and in the future, regardless of COVID-19, research will be presented to improve mutual communication between professors and students in smart learning.

• 한국IT서비스학회지
• /
• 제13권4호
• /
• pp.65-78
• /
• 2014

In this study, I explored the causal relationship between acceptance attitudes and the expected effects of smart work. With the rapid development of smart technologies, lots of organizations try to innovate in the conventional working styles for maximizing organizational effectiveness and efficiency. Although many organizations wish to foster smart working environment, they don't have confidence in detailed action plans and effects from it. Therefore, this study that explores the causal relationship between acceptance attitudes and effects may have crucial meaning to organizations pursuing smart work. In this research empirically conducted by questionnaire survey, the acceptance attitudes as predictors and the expected effects of smart work as influenced variables were used. This research analyzed 118 collected data and multiple regression analysis. As a result of analysis, teleworking shows the positive relations to all of dependent variables. And others have a positive or negative influence on cognitive effects of smart work. Results of this study may give implications to organizations that want to implement smart work environment.

• 한국실천공학교육학회논문지
• /
• 제5권1호
• /
• pp.28-33
• /
• 2013

본 논문에서는 스마트기기의 출현으로 급변하는 정보통신환경을 반영한 스마트러닝 모델을 제시한다. 스마트 기기들은 화면크기와 성능이 다양하지만 크게 스마트폰, 스마트 패드, 개인용 컴퓨터(PC), 스마트 TV로 구분할 수 있다. 본 논문에서는 각 기기 유형별로 서비스에 적합한 교육 콘텐츠와 상호작용 방법들에 대하여 살펴보고, 각 기기 특성에 맞는 스마트러닝 서비스 모델과 향후 정보통신환경을 반영한 스마트 러닝의 발전 방향을 제시하였다.

• 스마트미디어저널
• /
• 제10권2호
• /
• pp.92-99
• /
• 2021

스마트 공간은 주변 환경과 상호 작용하여 인간을 지원하는 기술이며, 내장된 동적 지능형 환경을 가지고 있다. 이 논문은 스마트 공간에서 사용자 맞춤 동적 지능형 환경을 제공하는 프레임워크를 제안한다. 사용자 맞춤 지능형 서비스를 제공하는 기존 연구에서는 사용자의 관심사를 명시적으로만 분석하고, 스마트 공간을 고려하지 않았다. 암시적 관심사 분석은 명시적 관심사 분석보다 사용자에게 흥미가 있을 수 있는 서비스의 제안이 가능하지만, 분석 시 명시적 관심사 분석보다 높은 성능을 요구한다. 그리고 스마트 공간은 공간의 정보들과 상호작용하여 유용한 정보를 얻을 수 있다. 연구에서 제안된 프레임워크는 스마트 공간에 적합하도록 근접 기반 사물 소셜 네트워크를 이용한다. 또한, 암시적 관심사 분석은 사물의 소셜 미디어 정보와 공간 정보를 이용하여 스마트 공간을 위한 지능형 정보를 제공한다. 그리고 스마트 공간 특성을 고려하여 정확도를 유지하면서 성능 저하를 막는 방법을 제안한다.