• Title/Summary/Keyword: home-appliance

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Customer Willingness to Use Smart Grid Services in Home (스마트 그리드 서비스에 대한 고객 수용도 분석)

  • Kim, Young-Myoung;Lee, Young-Woo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.9B
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    • pp.1399-1406
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    • 2010
  • Customers can monitor electricity use in real time in smart grid(ICT is grafted onto current grid), so various beneficial services can be provided to customer. We did a qualitative survey, HV(Home Visit) and FGD(Focus Group Discussion), in order to derive customer's cognition of using electricity in home and values that customers consider significantly and a quantitative survey in order to know willingness to use. Customers consider electricity indispensible for using home appliances, want to use safely far from electromagnetic waves, short circuit and electronic shock. Also, customers want to save energy conveniently with no stress. Customers want 'a function', 'information', 'motivation' for energy saving, and 'electromagnetic waves cutting', 'to prevent electronic shock', 'to prevent short circuit' for safe electricity use. In this study, we derived 4 services - energy monitoring, standby power cutting, remote control, energy consulting - based on customer values and unmet needs, which is connected to home network that customers can monitor total and each appliance's electricity usage in real time and control home appliances. The willingness to use of services is over 60% and especially energy monitoring and standby power cutting service have high willingness to use rate, about 80%.

Smart Home Service System Considering Indoor and Outdoor Environment and User Behavior (실내외 환경과 사용자의 행동을 고려한 스마트 홈 서비스 시스템)

  • Kim, Jae-Jung;Kim, Chang-Bok
    • Journal of Advanced Navigation Technology
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    • v.23 no.5
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    • pp.473-480
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    • 2019
  • The smart home is a technology that can monitor and control by connecting everything to a communication network in various fields such as home appliances, energy consumers, and security devices. The Smart home is developing not only automatic control but also learning situation and user's taste and providing the result accordingly. This paper proposes a model that can provide a comfortable indoor environment control service for the user's characteristics by detecting the user's behavior as well as the automatic remote control service. The whole system consists of ESP 8266 with sensor and Wi-Fi, Firebase as a real-time database, and a smartphone application. This model is divided into functions such as learning mode when the home appliance is operated, learning control through learning results, and automatic ventilation using indoor and outdoor sensor values. The study used moving averages for temperature and humidity in the control of home appliances such as air conditioners, humidifiers and air purifiers. This system can provide higher quality service by analyzing and predicting user's characteristics through various machine learning and deep learning.

The Determination of Reference Impedance on 1P2W Low Voltage System in Korea (국내 단상2선식 저압 배전계통 기준임피던스 선정에 관한 연구)

  • Kang, Moon-Ho;Song, Yang-Hyao;Lee, Heung-Ho
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.21 no.10
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    • pp.35-39
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    • 2007
  • Home appliances, like air-conditionals, washers, refrigerators, etc., can cause voltage fluctuations and light flicker. A standardized flicker test has been established in Europe(IEC 61000-3-3, IEC 61000-3-11). The supply impedance of power supply system varies from plate to place, and for the flicker test in KOREA, the appliance manufacturers do need standardized impedance like the one indicated in IEC 61000-3-3 for 230[V]/50[Hz]. Without it, the same appliance will have different flicker level at different places. For appliance manufacturers, the flicker limit should be related to the reference impedance. However, the European flicker test is designed for 230[V]/50[Hz] power and needs to be modified for a 1P2W(220[V]/60[Hz]) supply system in KOREA. In this paper, the reference impedance for KOREA(220[V]/60[Hz]) systems is proposed. The measured result provided in this paper was served as a proposal for establishing KOREA reference impedance for 220[V]/60[Hz] and has been published in IEC 60725.

A Smart Closet Using Deep Learning and Image Recognition for the Blind (시각장애인을 위한 딥러닝과 이미지인식을 이용한 스마트 옷장)

  • Choi, So-Hee;Kim, Ju-Ha;Oh, Jae-Dong;Kong, Ki-Sok
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.20 no.6
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    • pp.51-58
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    • 2020
  • The blind people have difficulty living an independent clothing life. The furniture and home appliance are adding AI or IoT with the recent growth of the smart appliance market. To support the independent clothing life of the blind, this paper suggests a smart wardrobe with closet control function, voice recognition function and clothes information recognition using CNN algorithm. The number of layers of the model was changed and Maxpooling was adjusted to create the model to increase accuracy in the process of recognizing clothes. Early Stopping Callback option is applied to ensure learning accuracy when creating a model. We added Dropout to prevent overfitting. The final model created by this process can be found to have 80 percent accuracy in clothing recognition.

Design of Occupancy-Based Appliance Energy Monitoring System (재실 기반 가전기기 에너지 모니터링 시스템 설계)

  • Lee, Min-Goo;Park, Yong-Kuk;Jung, Kyung-Kwon;Yoo, Jun-Jae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.10a
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    • pp.835-838
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    • 2011
  • This paper presented an occupancy-based smart plug system for appliance energy saving in home. We measured current consumption of appliances in real time using smart plugs, and check the occupation of residents using occupancy sensors installed on the door. The proposed system saves energy to switch off the supply power of unnecessary usages in the unoccupied spaces. Experiments conducted have shown that current usage of appliances can be measured by using smart plugs and presence can be checked by using occupancy sensors.

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A Study on Modeling of Users a Load Usage Pattern in Home Energy Management System Using a Copula Function and the Application (Copula 함수를 이용한 HEMS 내 전력소비자의 부하 사용패턴 모델링 및 그 적용에 관한 연구)

  • Shin, Je-Seok;Kim, Jin-O
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.65 no.1
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    • pp.16-22
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    • 2016
  • This paper addresses the load usage scheduling in the HEMS for residential power consumers. The HEMS would lead the residential users to change their power usage, so as to minimize the cost in response to external information such as a time-varying electricity price, the outside temperature. However, there may be a consumer's inconvenience in the change of the power usage. In order to improve this, it is required to understand the pattern of load usage according to the external information. Therefore, this paper suggests a methodology to model the load usage pattern, which classifies home appliances according to external information affecting the load usage and models the usage pattern for each appliance based on a copula function representing the correlation between variables. The modeled pattern would be reflected as a constraint condition for an optimal load usage scheduling problem in HEMS. To explain an application of the methodology, a case study is performed on an electrical water heater (EWH) and an optimal load usage scheduling for EHW is performed based on the branch-and-bound method. From the case study, it is shown that the load usage pattern can contribute to an efficient power consumption.

A Design of Integrated Service for ControllingNetworked Appliances on Wireless Network (인터넷 정보가전 제어를 위한 무선 통합 서비스 설계)

  • Kim Dong-Kyun;Kim Ki-Young;Kim Hee-Ja;Lee Hae Gak;Lee Sang-Jeong
    • Journal of Digital Contents Society
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    • v.5 no.2
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    • pp.114-120
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    • 2004
  • This paper proposes the wireless integrated service for controlling networked appliances. Using wireless devices such as celluar phone and PDA which can communicate through Bluetooth and CDMA technology, home appliances are accessed and controlled from outside of house. The XML and the SMS message format is designed to specify controlling information for home appliances. Also the mobile agent and the message processor for networked appliances are implemented in the home gateway. In order to verify the proposed service system, a universal remote controller for cellular phone and PDA and network appliance simulator on web browser are implemented. Correct operation is verified through simulation using them.

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A Data Visualization Method based on Home Appliance Log Data in IoT-Home Environment (IoT-Home 환경에서 가전제품 사용 로그 기반 데이터 시각화 기법)

  • Baek, Seungtae;Myung, Rohyoung;Jung, JinYong;Moon, SungHoon;Yu, Heonchang
    • Proceedings of the Korea Information Processing Society Conference
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    • 2016.04a
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    • pp.965-968
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    • 2016
  • IoT 환경이 도래하면서 데이터 수집, 데이터 전송, 데이터 처리와 같이 IoT 서비스 제공을 위한 인프라에 대한 연구는 활발하게 진행되고 있지만 이러한 인프라에서 실제 IoT 서비스를 사용하는데 필요한 데이터 분석은 상대적으로 연구가 미흡하다. IoT 서비스를 효율적으로 제공하고, 효과적으로 사용하기 위해서는 데이터 분석에 대한 연구가 선행돼야 한다. 특히 IoT 서비스 중에서도 IoT 홈 서비스의 경우 데이터에 내재된 개인정보 문제 때문에 데이터의 수집이 어렵고, 분석에 필요한 형태를 갖추기도 어렵기 때문에 기계학습기법의 적용이 용이하지 않다. 본 논문에서는 이진형(Discret) IoT 홈 서비스의 데이터 분석을 위해 DAG기반 데이터 시각화 기법을 제안한다. 해당 기법을 통해 IoT 홈 서비스 디바이스들간 연관성, 각 디바이스의 사용 지속성 및 사용패턴과 같은 데이터 분석을 위한 메타데이터를 제공한다.

Developing the Design Guideline of Auditory User Interface for Digital Appliances (가전제품의 청각 사용자 인터페이스(AUI) 디자인을 위한 가이드라인 개발 사례)

  • Lee, Ju-Hwan;Jeon, Myoung-Hoon;Han, Kwang-Hee
    • Science of Emotion and Sensibility
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    • v.10 no.3
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    • pp.307-320
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    • 2007
  • In this study, we attempted to provide a distinctive cognitive, emotional 'Auditory User Interface (AUI) Design Guideline' according to home appliance groups and their functions. It is an effort to apply a new design method to practical affairs to overcome the limit of GUI centered appliance design and reflect user multimodal properties by presenting a guideline possible to generate auditory signals intuitively associable with the operational functions. The reason why this study is required is because of frequent instances given rise to annoyance as not systematic application of AUI, but arbitrary mapping. This study tried to provide a useful guideline of AUI in home appliances by extracting the relations with cognitive, emotional properties of a certain device or function induced by several properties of auditory signal and showing the empirical data on the basic mechanism of such relations.

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Development of IoT Home Gateway Environment based on ACOME using Open Source Hardware (오픈소스 하드웨어를 활용한 ACOME 기반의 IoT 홈 게이트웨이 환경 개발)

  • Kim, Seong-Min;Choi, Hoan-Suk;Rhee, Woo-Seop
    • The Journal of the Korea Contents Association
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    • v.16 no.3
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    • pp.296-304
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    • 2016
  • Recently in domestic market, the telecommunication and appliance companies actively provide IoT home service through their dedicated smart device and communication network. But because their service should use only their own devices and be payed by monthly, it does not satisfy user's needs. So, users want device and service environment that can be easily configured according to user needs. Therefore, in this paper, we propose IoT home service environment architecture and ACOME(Auto-Configuration of MQTT and REST) mechanism. The proposed architecture consists of IoT platform and IoT home gateway. And the ACOME provides the automatic registration using DPWS function and interface construction using MQTT. This implements as a library for open-source hardware such as Arduino that is easy to get on the market. So the user easy to make own IoT device. Finally, we provide performance evaluation about service and device discovery between ACOME and DPWS.