• Proceedings of the IEEK Conference
• /
• 2000.09a
• /
• pp.581-584
• /
• 2000

홈네트웍은 정보통신 네트웍의 최종단인 가정 내 통신망이다. 이제까지 백본 네트웍이나 엑세스 네트웍 등에 비해 상대적으로 연구가 적었지만 최근 들어서 가정 내에서 복수 개의 PC 의 사용이 증가되면서 홈네트웍에 대한 관심이 증가하고 있다. 본 논문에서는 100Mbps 전송속도를 갖는 Home Network 구현을 위하여 두 가지 방법으로 시스템을 제안한다. 첫번째 방법은 현재 100Mbps 급 홈네트웍의 표준안으로 예상되는 OFDM 변조방식의 일종인 DMT방식을 사용하는 것이고, 두 번째는 최소대역폭 라인코딩 방식을 이용하는 것이다.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.37B no.9
• /
• pp.831-836
• /
• 2012

To provide convenient life, we consider the situation of using the smart phone to control smart TV and PC in home and office. In this paper, we design the interworking platform between smart TV, smart phone and PC, and implement their applications. Our smart phone application controls the smart TV and PC, where our smart TV application communicates with the smart phone and PC can be booted by the login and password information given form our smart phone application. We hope that our platform design and application implementation will be contributed to be a foundation of interworking between various smart devices in the near-future real smart life.

• Journal of Families and Better Life
• /
• v.26 no.6
• /
• pp.51-69
• /
• 2008

The purpose of this study was to identify the level of awareness, uses, and satisfaction on home automation systems by the digital home residents, to reveal the existing problems using home automation systems, and to clarify residents' positive or negative life changes after using home automation systems. Two apartment complexes, which were relatively well equipped with home automation systems compared to other recently built apartments, were selected to perform the survey by digital home residents who were housewives and have lived in current home more than 6 months. The researcher developed a survey questionnaire for each apartment complex and collected data from 501 residents from May to June, 2008. The results of the study found low awareness and low uses of remote control systems of electric appliances through a cellular phone or PC from outside. Also, the significant variables which showed group differences in level of uses and satisfation were age, annual income, duration of residence, and level of considering home automation system before decision to move in. The results of the study also revealed that frequent breakdown was the most critical problem using home automation systems. Generally, using home automation systems affected to residents' life changes positively. More findings and suggestions for development of more user-friendly digital home services were discussed.

• Korean Journal of Pharmacognosy
• /
• v.26 no.1
• /
• pp.57-61
• /
• 1995

MeOH extracts of eight herbal medicines were investigated for the effects on catecholamine biosynthesis and tyrosine hydroxylase (TH) activity in PC12 cells. Among them, the MeOH extracts of Polygalae Radix and Rehmaniae Radix showed 32 and 22% inhibition on the dopamine biosynthesis, respectively at a concentration of $40{\mu}g/ml$ medium. But, the TH activity was reduced by the treatment of Polygalae Radix. These results suggest that Polygalae Radix has an inhibitory effect on the catecholamine biosynthesis by the reduction of TH activity in PC12 cells.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2011.10a
• /
• pp.779-781
• /
• 2011

In this paper, we developed Network based Green Power Management System which is consist of EMS, Smart Plug, PC Agent and SmartPhone App. for power saving of PC and a varity of peripheral devices in office or home, and we evaluated the perfornance of our system.

• Journal of Families and Better Life
• /
• v.15 no.4
• /
• pp.315-326
• /
• 1997

This study was designed to examine the quality of life among new generation housewives. Selected variables were home management consciousness and home management behavior, and satisfaction with family life. Path analysis was used to test the causal model of quality of life. The data for this study were collected from 834 housewives, and analyzed employing SPSS $PC^+$ statistical package. Major findings were as follows: 1. The satisfaction with family life was the strongest predictor of the quality of life. 2. Home management behavior had both direct and indirect effect via satisfaction with family life on the quality of life. 3. Home management consciousness had indirect effect through home management behavior and satisfaction with family life on the quality of life. Implications were discussed.

• International Journal of Computer Science & Network Security
• /
• v.24 no.6
• /
• pp.77-82
• /
• 2024

The Smart home energy consumption represents much of the total energy consumed in advanced countries. For this reason, the main objectif of this paper is to study the energy consumption profile by day for each home appliances: controllable appliances for example Washing machine, Tumble dryer and Air conditioning and uncontrollable appliances for example TV, PC, Lighting, Refrigerator and Electric heater. In this paper, we start with presentation of a smart home energy management systems. Next, we present the modeling and simulation of controllable appliances and uncontrollable appliances. Finally, concludes this paper with some prospects. The modeling and the simulation of a Smart home appliances is based on MATLAB/Simulink software.

• Journal of Institute of Control, Robotics and Systems
• /
• v.12 no.1
• /
• pp.1-8
• /
• 2006

The home network system guarantees families a safe, economical, socially integrated and healthy life by using information appliances. And it provides a family with domestic safety, control of instruments, controllable energy and health monitoring by connecting to home appliances. This study designs the broadband PLC home controller using broadband PLC(Power Line Communication) technology which can save much cost at a network infrastructure by using the existing power line at home. The broadband PLC home controller consists of the broadband PLC module, the embedded main controller module and I/O module. The broadband PLC home controller can control various domestic appliances such as an auto door-lock, a boiler, an oven, etc., because it has various I/O specifications. In this study, selected home network middleware for the broadband PLC home controller is Jini surrogate using Jini technology designed by means of access to easily a home network system without a limitation of the devices. And a client application program is supported java servlet program to manage and monitor the broadband PLC home controller via web browser of a PC or a PDA, etc. Finally, for an application, we implemented and tested a home security system using one broadband PLC home controller.

• Journal of Digital Convergence
• /
• v.14 no.7
• /
• pp.193-200
• /
• 2016

Research and development of energy self-consumption introducing photovoltaic and energy storage system at home is very active. This system can manage the home energy in which it charges the electricity generated during the day and uses it during high electricity bills. However, it not yet made up the residential real-time pricing in Korea but it can reduce electricity usage to a certain target on the progressive. In order to introduce the home photovoltaic, it requires PCS(Power Conditioning System). This converts the direct current into alternating current by the electricity generated and used to perform charging and discharging of the energy storage system. The market for self-consumption smart home system is currently increasing because the interests of the general public about solar power, energy storage systems increased. The result of this study is installed on the room environment and the effect was analyzed on the assumption of real-time pricing.

• Journal of Families and Better Life
• /
• v.19 no.2
• /
• pp.83-96
• /
• 2001

This study examined housework time management strategies between married female home-based workers and on-site workers, and found out the factors affecting the housework time management strategies. The data were collected from 165 married female home-based workers, and 292 married female on-site workers in Pusan and Kyungnam province, by self-administered questionnaire. Frequency distributions, Cronbachs alpha, t-tests, Pearsons correlations, and multiple regression analyses were conducted by SPSS/PC+. The major findings of this study were kas follows: 1) Married female home-based workers more used obtaining additional help and personal time reallocation than married female on-site workers. 2) For married female home-based workers, educational attainment and occupation were significant factors affecting housework time management strategies, and for married female on-site workers, employment hours per week and existence of elders/disability within the family were important variables.