• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2005년도 ICCAS
• /
• pp.1163-1168
• /
• 2005

This paper proposes a soft-remote-control (soft-remocon) system based on EMG signals for the Intelligent Sweet Home. The proposed system is applied to Intelligent Sweet Home which was developed to help the independence living of the elderly and physically handicapped individuals. The goal of proposed system is to control home-installed electronic devices such as TV, air-conditioner, curtain and lamp in Intelligent Sweet Home using EMG signals. Features such as VAR and DAMV having good separability performance are selected for pattern classification. FMMNN is adopted as a pattern classifier. Classification results are allowed to a developed remote control module and then corresponding infrared pulses can operate home-installed electronic devices. We concluded that EMG as an input interface for home-installed electronic devices in Intelligent Sweet Home.

• 한국주거학회논문집
• /
• 제18권5호
• /
• pp.33-43
• /
• 2007

This study aimed to analyze residential demands on intelligent systems for apartments and suggest space design directions of intelligent apartment complexes. Data collection was done through mail-in surveys by five respondent groups. Outcomes of this study would provide basic data for developing intelligent apartment housing corresponding to the residential characteristics and demands of the five respondent groups. The sample size for the questionnaire survey was 592. The types of the target residents in this study were classified into five categories; nuclear families, dual income families, single households and the handicapped needing special environmental supports, and workers at home who need the new home design with a home office. The primary findings of this study were as follows. 1) For the controllers of intelligent system, nuclear families preferred TV, single households prefer home-pad which is movable and provides access to the internet. Dual income families, the handicapped and workers at home preferred remote control panels. 2) For the desirable space for computer equipment, regardless of the types of target residents, bedroom and living room were preferred. 3) For the desirable space for a home theater system, most of respondent groups preferred living rooms, but many rather wanted to have media rooms only for this system.

• 한국융합학회논문지
• /
• 제12권5호
• /
• pp.197-205
• /
• 2021

TV홈쇼핑사들은 TV채널과 전화주문방식이라는 채널에 국한되지 않고 모바일을 통해 채널 확장에 노력을 기울이고 있다. 웹을 이용한 상호작용성과 편재성을 넘어서 모바일 라이브방송을 통해 더욱 소비자와의 접점을 확대하고 있다. 모바일을 통해 라이브톡을 통해 소비자와의 상호작용에 중요시하고, 모바일 내의 자체 방송을 한다. 이러한 상호작용을 중요시하는 활동은 놀이성향, 충동성향과 같은 소비자의 개인성향에 따라 소비자 플로우에 대한 차이도 있을 것으로 본다. 본 연구에서는 모바일홈쇼핑의 특성인 양방향성, 즉시성과 편재성이 소비자의 플로우에 미치는 영향을 살펴보고, 개인성향에 따라 모바일홈쇼핑에 대한 소비자의 플로우 상태에 미치는 영향은 차이가 있을 것으로 보고 연구하였다. 연구결과, 양방향성은 플로우에 유의하지 않는 것으로 나타났으며, 즉시성 역시 플로우에 유의미한 영향을 미치지 못하는 것으로 나타났다. 편재성은 플로우에 유의한 영향을 미치는 것으로 나타났다. 개인성향 중 놀이성향이 높은 사람은 플로우에 긍정적 영향을 미치는 것으로 나타났으며, 충동성향이 높은 사람 역시 플로우에 유의한 영향을 미치는 것으로 나타났다. 소비자의 플로우 상태는 모바일홈쇼핑을 이용하려는 의도에 긍정적인 영향을 미치는 것으로 나타났다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제13권6호
• /
• pp.2781-2798
• /
• 2019

Thanks to internet, as one of indispensable parts of our lives, many devices that we use in our daily lives like TV, air conditioner, refrigerator, washing machine, can be monitored and controlled remotely by becoming more intelligent via Internet of Things (IoT) technology. Smart Home applications as one of the elements of smart cities, are individually the most demanded application without question. In this study, Smart Energy Management (SEM) system, based on NodeMCU and Android, has been designed for SEM, which is a part of the smart home application. With this system, household energy consumption can be monitored in real time, as well as having the ability to record the data comprising of operation times and energy consumption information for each device. Additionally, it is ensured to meet the energy needs on a maximized level possible, during the hours when the energy costs are lower owing to the SEM system. The Android interface provides the users with the opportunity to monitor and change their electricity consumption habits in order to optimize the energy efficiency, along with the opportunity to draw up of a daily and weekly schedule.

• 한국전자거래학회지
• /
• 제15권3호
• /
• pp.63-83
• /
• 2010

뉴미디어 시대의 새로운 혁신기술로 IPTV를 들 수 있다. IPTV는 텔레비전과 인터넷이 융합된 뉴미디어로 TV기능을 가지면서도 인터넷에 접속하여 정보 검색, 게임, 영화, 홈쇼핑, 홈뱅킹 등 포털 서비스를 받을 수 있는 차세대 TV이다. 이러한 혁신기술들의 채택과 사용에 서비스 품질은 중요한 영향을 미친다. IPTV는 일반 TV와 달리 기술적 제약 때문에 서비스 품질보다 체감 품질이 더욱 중요시 된다. 체감 품질은 사용자가 본원적으로 경험하고 인지하는 품질로 최종 사용자를 대상으로 시험하고 측정하는 품질이다. 본 연구는 IPTV의 체감 품질 측정 방법론을 제안하는 것이 목적이다. 탐색적 방법을 사용하여 체감 품질에 영향을 미치는 요인을 발견하고 사용자 테스트라는 실험적 방법을 사용하여 체감 품질을 측정한다. 우리는 요인분석을 통하여 9개의 체감 품질 요인(그래픽, 화질, 정확성, 접근도구, 콘텐츠의 질, 사용성, 보안성, 성능)을 발견하였다. IPTV 서비스 제공자를 대상으로 측정한 체감 품질 점 수는 화질, 그래픽, 콘텐츠의 질을 제외하고는 전반적으로 높지 않아 개선이 요구된다.

• 대한가정학회지
• /
• 제43권7호
• /
• pp.67-77
• /
• 2005

The purpose of this study was to survey the concern for nutrition and the degree of nutritional knowledge of elementary school children's parents and their perception on the eating habits of their children. This study also investigated the effects of the concern for nutrition and the nutritional knowledge on the eating habits of their children. The questionnaire was answered by 383 mothers and fathers in the Kyonggi area. The general nutritional attitude and the perception of their children's eating habits were represented by frequencies and analyzed tv chi-square test, and Fisher's exact test. The difference of nutritional knowledge was represented tv mean and S.D. and was analyzed by one-way ANOVA test. Statistical significance was tested at the 0.05 level. The main results of the study are summarized as follows. 1) Parents had a comparatively deep concern for nutrition and a high level of knowledge. With increasing concern for nutrition, nutritional knowledge tended to be better and the higher proportion of participation in the nutritional education program increased. 2) The majority$(58.5\%)$ of the subjects thought that the eating habit of their children was not appropriate. The subjects had relatively high recognition about their children's eating habits and pointed out the unbalanced diet, snacks, and skipping a meal among their children's eating habits. Nevertheless, there were no significantly differences among the concern for nutrition of the parents and perception on their children's eating habits. As the parents' nutritional attitude, concern for nutrition, and nutritional knowledge can affect the children's eating habits, tire suggest that schools open nutritional education programs for parents in order to acquire proper food and nutrition information, and that schools and homes should be more closely connected.

• ETRI Journal
• /
• 제36권5호
• /
• pp.741-751
• /
• 2014

Smart TV is expected to bring cloud services based on virtualization technologies to the home environment with hardware and software support. Although most physical resources can be shared among virtual machines (VMs) using a time sharing approach, allocating the proper amount of memory to VMs is still challenging. In this paper, we propose a novel mechanism to dynamically balance the memory allocation among VMs in virtualized Smart TV systems. In contrast to previous studies, where a virtual machine monitor (VMM) is solely responsible for estimating the working set size, our mechanism is symbiotic. Each VM periodically reports its memory usage pattern to the VMM. The VMM then predicts the future memory demand of each VM and rebalances the memory allocation among the VMs when necessary. Experimental results show that our mechanism improves performance by up to 18.28 times and reduces expensive memory swapping by up to 99.73% with negligible overheads (0.05% on average).

• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2006년도 학술대회 1부
• /
• pp.1025-1030
• /
• 2006

과거에는 시스템이 돌아가기만 하면 되지 편리함이나 사용자의 취향을 고려하는 것은 모두 사치라는 생각이 있었다. 그러나 현재는 단순히 사용성에 근거한 시스템만으로는 그 시스템이 좋은 시스템이라고 평가 받기에는 부족한 면이 있다. 이제는 시스템이 HCI 관점에서 평가되며, 이때 시스템개발의 최종목적은 단순히 동작하는 시스템을 만드는 것이 아니라 사용자들에게 최적의 경험을 제공할 수 있는 시스템을 개발하는 것이다. 이러한 최적의 경험은 시스템과의 상호작용이 유용하고, 편리하며, 직관적이어야 얻을 수 있다. 일반적으로 TV 리모컨은 화면에 미리 지정된 부분들을 순차적으로 이동하는 간접 이동 방식으로 매우 간단한 인터랙션만을 제공해 준다. 본 논문에서는 사용자에게 보다 직관적인 인터페이스를 제공해주기 위해 리모컨의 기능을 확장한 프로젝터 기반의 가상 리모컨을 제안한다. 가상리모컨은 사용자가 원하는 위치에 생성될 수 있으며, 기존의 TV 리모컨과 같이 미리 지정된 메뉴 사이를 이동해서 제한된 선택을 하는 것이 아니라, 보다 직관적인 인터페이스를 통해 직접 기기를 동작시키는 가상 체험을 느끼면서 조작할 수 있도록 해 준다. 실험을 통해, 기존의 TV 리모컨이 일정한 학습을 필요로 했던 것과는 달리, 체험자들은 사전 학습없이 TV의 주요 기능을 가상리모컨을 사용함으로써 쉽고 빠르게 컨트롤할 수 있음을 확인하였다.

• Human Ecology Research
• /
• 제51권4호
• /
• pp.371-382
• /
• 2013

The purpose of this study is to investigate children's emotional problems (attention problem, aggression, somatic symptom, social withdrawal, depression) and to examine the relationship between children's emotional problems with family characteristics (parent education, parent job, family income), life-styles (gaming times, TV times, sleep time). The sample was 2,140 collections of second grade children and their parents who participated in Korea Youth Panel Survey on 2011. We analyzed the data which were collected by means of questionnaires and the data were analyzed with t -test, ANOVA, Pearson correlation analysis, and regression analysis with SPSS ver. 19.0. The results were summarized as follows. The level of children's emotional problem was relatively low on average. There is a significant difference in the children's emotional problems according to family characteristics and life-styles. There was a relationship between children's emotional problems (attention problem, aggression, somatic symptom, social withdrawal, depression) and life-styles (gaming times, TV times). The significant factors influencing the children's emotional problems are connected with father's education, mother's job, family income, family characteristics, gaming time and TV time of life style. It is noted that parent education level was an important factor for children's attention problem and aggression. Amongst children's life-styles, gaming time and TV time are negative factors for social withdrawal and depression.

• International Journal of Computer Science & Network Security
• /
• 제22권2호
• /
• pp.327-333
• /
• 2022

Internet Protocol Television (IPTV) has emerged as a personal entertainment source for home users. Streaming IPTV content over a wireless medium with good Quality of Service (QoS) can be a challenging task as IPTV content requires more bandwidth and Wireless Local Area Networks (WLANs) are susceptible to packet loss, delay and jitter. This research presents the capacity of IPTV using User Datagram Protocol (UDP) and TCP Friendly Rate Control (TFRC) over IEEE 802.11ac WLANs in good and bad network conditions. Experimental results show that in good network conditions, UDP and TFRC could accommodate a maximum of 78 and 75 Standard Definition Television (SDTV) users, respectively. In contrast, 15 and 11 High-Definition Television (HDTV) users were supported by UDP and TFRC, respectively. Performance of UDP and TFRC was identical in bad network conditions and same number of SDTV and HDTV users were supported by TFRC and UDP. With background Transmission Control Protocol (TCP) traffic, both UDP and TFRC can support nearly the same number of SDTV users. It was found that TFRC can co-exist fairly with TCP by giving more throughput to TCP unlike UDP.