• 가정과삶의질연구
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• 제27권3호
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• pp.213-224
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• 2009

This research aims to analyze and compare the objective and subjective evaluation criteria for home appliances. In addition, this research examined the correlation between those evaluation criteria. Furthermore, consumers are divided by the level of the differences between those criteria; consumer groups whose subjective evaluation level for the quality of home appliances is greater than objective evaluation level, consumer groups whose subjective evaluation level is almost the same, and consumer groups whose subjective evaluation level for the quality of home appliances is lower than objective evaluation level, and this study investigated the differences those three groups by the socio-demographic characteristics and consumers' behavior in the stage of purchase. Results of this research could be summarized as follows. First of all, there were statistically significant between the level of the objective and subjective evaluation in the quality of home appliances. Second, when consumers purchased the expensive home appliance, imported-brand home appliance, home appliances in department store, the level of subjective evaluation level for the quality of home appliances is higher than objective evaluation level. Third, the level of satisfaction for the price, quality, AS, overall satisfaction, and the level of willingness to repurchase were higher in consumer groups whose subjective evaluation level was higher than objective evaluation level.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제11권2호
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• pp.67-80
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• 2022

최근 들어 세탁 가전제품은 사물인터넷(IoT) 기능을 적용한 제품이 많이 출시되고 있으나 IoT 기능에 대한 품질평가 시험은 거의 없는 게 현실이다. 특히 기존의 시험체제에서는 IoT 기능을 적용한 세탁 가전제품에 대해 IoT 시험항목이 마련되어 있지 않기 때문에 제품을 제조하는 제조사의 경우에는 결함이 발생하더라도 원인을 쉽게 찾기가 어려우며, 시험기관의 경우에도 IoT와 관련한 시험항목 선정 및 방법의 부재로 올바른 성능시험 수행에 제약이 있다. 본 논문에서는 가전기기 분야의 제품 중 IoT 기능을 적용한 세탁 가전제품에 대해 성능시험 프로세스에서 제품 결함을 찾아내고 그 원인을 식별할 수 있도록 IoT 시험항목을 공용성과 가변성으로 구분한 시험항목 프레임워크를 설계하고, 이를 이용한 시험방법 및 관리방안을 제안한다. 제안하는 연구를 통해 제조사 및 시험기관은 IoT 기능을 적용한 세탁 제품의 올바른 성능시험이 가능하여, 제품의 완성도를 높이고 신뢰성을 확보할 수 있다.

• Journal of Communications and Networks
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• 제14권6호
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• pp.619-628
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• 2012

The ZigBee network has been considered to monitor electricity usage of home appliances in the smart grid network. ZigBee, however, may suffer from a coexistence problem with wireless local area network (WLAN). In this paper, to resolve the coexistence problem between ZigBee network and WLAN, we propose a new protocol constructing a cognitive smart grid network for supporting monitoring of home appliances. In the proposed protocol, home appliances first estimates the transmission timing and channel information of WLAN by reading request to send/clear to send (RTS/CTS) frames of WLAN. Next, based on the estimated information, home appliances transmit a data at the same time as WLAN transmission. To manage the interference between WLAN and smart grid network, we propose a cognitive beamforming algorithm. The beamforming algorithm is designed to guaranteeing zero interference to WLAN while satisfying a required rate for smart metering. We also propose an energy efficient rate adaptation algorithm. By slowing down the transmission rate while satisfying an imperceptible impact of quality of service (QoS) of the receiver, the home appliance can significantly save transmit power. Numerical results show that the proposed multiple antenna technique provides reliable communications for smart metering with reduced power comparing to the simple transmission technique.

• 설비공학논문집
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• 제22권5호
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• pp.304-313
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• 2010

During recent years, various studies have demonstrated that indoor chemical pollution causes health problem and also negatively affect the performance of work by occupants. Building materials have been concerned as indoor chemical sources. Some of guidelines and certification system has been developed and resulted as dramatic decrease of harmful indoor chemicals such as formaldehyde and volatile organic compounds. Also, Home furniture and electrical devices has been concerned as one the primary influence the indoor chemical concentration in residential spaces. It is found that various kinds of electric home appliances have a significant source of chemical emission in indoor environments. In this study, the methodologies of detecting harmful chemicals from various kinds of products has been developed with large chamber measurement system and suggest some of the evaluation method for the chemicals from the home appliances as TV sets.

• 기술혁신학회지
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• 제7권1호
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• pp.89-110
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• 2004

Home networks consist of two or more home appliances or communication devices enabling the mutual data communication between appliances such as personal computers, refrigerators, phones, television sets, personal digital assistants(PDA), etc. There are three factors that create demand for the home network services. The first factor is development of technology. Second, on the demand side, consumer demand for the home appliances having access to the Internet is in the increase. Finally, producers need a strategy to deal with the problem of market saturation. Home networks are emerging markets. They are unique in that they unite information technologies with home appliances that provide new services. in this paper we study the main attributes of home network services and analyze consumers' preferences for them. However, it is not quite possible to use the revealed preference approach since the home network market is still at an incipient stage. We therefore use the conjoint analysis method using stated preference data. conjoint analysis has been widely use in the area of marketing for evaluating consumer preferences for new products and services. it presents a hypothetical product to the respondents along with the product's attributes and their levels. The respondents are asked to either rank each alternative or choose between several hypothetical products. By estimating consumers' willingness to pay for the attributes of the home network services and analyzing consumers' preferences, we predict the pattern of the development of the home network services and related technologies along various quality dimensions. Based on the estimation results, we draw policy implications for the national- and company-level strategy.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2005년도 추계학술대회 및 정기총회
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• pp.180-184
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• 2005

These days, home network connects all home appliances using one of broadband convergence network, is constructed and propagated to more than 10 million house hold. Users can monitor and control statuses of home appliances using mobile terminal through homeserver. For active propagation of home network, high-quality multimedia service is very important. Specially, as digital recorder and digital camera is propagated, new paradigm that private DVDs can be shared in many household shows up. The homeserver is the main part of UbiHome, which can store much multimedia content and through which the user can search and share these contents. For searching and sharing, the metadata of contents is supposed to keep the consistency. These metadata include the description to different format such as Image, movie, and music. Therefore, we intend to provide a RDF model for effectively storing, searching and managing high-quality contents in UbiHome. In this paper, we propose to make Ontology to close semantic approach using RDF/RDF Schema for managing multimedia data in UbiHome. we propose RDF-Based Local Ontology and merging these ontology to RDF-Based Global Ontology.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2008년도 하계학술대회 논문집
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• pp.547-549
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• 2008

This paper presents a implementation of the monitoring program for the analysis of electric consumption characteristics in home appliances, which uses a Labview program from National Instruments Corporation. It is can provide to be easy for small-scale researcher, development groups or individual researcher to analyze electric power consumption characteristics. Also, this paper apply to actual private home and then, analyze result of monitoring and a database result of power quality etc, like the power consumption form, power factor and harmonic which follow season, and time zone. For this measured the apartment where the family which is four lives in the object.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.288-289
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• 2018

IoT(Internet of Things)는 빠르게 증가하고 있으며 모바일 장치 및 웹과의 상호 연결을 통해서 일상생활에서 삶의 질을 향상시킬 수 있다. 본 논문은 가전제품에 IoT 기술을 접목하여 센서와 연결된 모바일 장치를 이용한 보다 나은 서비스를 제공하기 위해 모바일 감지를 통한 원격 제어를 향상시키기 위한 임베디드 시스템을 제안한다. 일반 가전제품들이 센서와 연결된 임베디드 시스템의 사용으로 우리의 노동력을 줄일 수 있다. 모바일 앱은 가전제품의 제어를 위한 메뉴 상태를 모니터링하고 원격 제어를 수행하여 사용자의 지식, 경험 및 인식을 향상시켜 보다 나은 삶을 누리게 하는데 기여할 수 있다.

• 한국신뢰성학회지:신뢰성응용연구
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• 제9권4호
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• pp.331-341
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• 2009

PSA (Pressure Sensitive Adhesive) is used for various purposes in electronic appliances such as double-sided tape for fitting parts, product's name plate, and surface protecting film, and so forth. In several kinds of PSAs, this paper dealt with the failure analysis of PET (Polyethylene Terephthalate) acrylic adhesive tapes. The causes of interface failure were investigated through the test of adhesive strength, thickness, and structure. And test standard methods to prevent recurrences were established.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 춘계학술대회논문집
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• pp.622-627
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• 2003

Until now, product mostly has revealed physical quantities created by the standpoint of engineers. Consumers, however, perceive and evaluate products on the non-physical characteristics, such as feelings, emotions, and experiences in different social and cultural situations. Especially, for the household appliances fur instance air-conditioner or refrigerator, the sound is heavily related to the satisfaction of a customer who is a real user of the product and is very important factor to decide purchasing as well as visual design. Therefore, in this research, the general tendency of consumer's psychology was investigated for the appliances. And also, in order to obtain clear guidelines for sound manipulation, the characteristics of the sound of air-conditioning systems and refrigerators were compared with others. Since it is important to overcome the discrepancy between engineering and marketing, the relevance of sound manipulation must be documented from the consumer's perspective. That is the reason why we conducted a consumer and marketing oriented study.