• Journal of the Korea Convergence Society
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• v.12 no.1
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• pp.163-170
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• 2021

Smart-textronics technology which enables functional textiles has recently been applied in various fields such as smart clothes, smart home and smart health care, and a variety of smart-textronics products have been developed. In this context, the smart-textronics product development process is proposed based on the systematic participatory design method in this paper. The proposed method consists of two phases: in-depth interviews and analyzing. In the phase of in-depth interviews, participants are asked to create journey maps that include activities, pain points and emotional status and to generate solution ideas with sketches and simple prototypes. In the analyzing phase, design researchers investigate the participants' journey maps, and create personas by identifying critical characteristics with the behavior pattern analysis. Then, each persona's needs are linked with value elements of the E3 value framework. Finally, pre-survey was conducted to identify smart-textronics market and a smart sofa design is proceeded as the case study to show the applicability of the proposed method.

• Convergence Security Journal
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• v.21 no.1
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• pp.107-113
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• 2021

Recently, large-scale research and efforts aimed at the smart world such as smart city, smart home, smart transportation, and smart care are continuing. As these smart worlds become more common, the expansion of connectivity with the Internet and the threat of cyber terrorism will be inevitable. Increasing the threat of cyber terrorism is increasing the likelihood of a massive disaster and safety accident. Therefore, in this paper, we examine smart worlds that are expanded in various forms and derive the security threat factors that smart worlds have. In addition, it is proposed to block the threat of terrorism from abroad if access from abroad is not required when constructing a smart world. Through this, we intend to present a method to eliminate cyber terror threats for the establishment and operation of a safe smart world.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.463-465
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• 2017

ICT기술이 빠르게 발전함으로써 헬스케어, 스마트홈, 스마트 씨티, 스마트카, 웨어러블과 같이 다양한 인간중심의 서비스가 개발되고 있다. 이러한 인간중심 서비스를 제공하기 위해 여러 센서들을 이용하여 작은 네트워크를 구현한다. 일반적으로 많은 무선 프로토콜 중 Z-Wave를 많이 사용한다. 센서들의 정보를 AES기반으로 암호화하여 Controller와 Device간 통신하는데 가장 효율적이지만 Z-Wave통신으로 데이터를 보내기위해 암호화 키를 생성할 때 사용되는 값이 평문으로 전송되기 때문에 보안위협이 존재한다. 따라서 이러한 보안 위협을해결하기 위해 Controller와 Device간 암호화 키를 생성할 시 Diffie-Hellman을 이용하여 보다 안전한 프로토콜을 제안한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.10
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• pp.1485-1490
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• 2013

The demonstration project of the electrical grid for Smart grid is progressed, the smart digital appliances AV technology, Smart home energy management technology charging the management function of complex energy for the automation management of air conditioning and heating, humidity and air, the health care technology charging the design of housing for the elderly and disabled and the measurement of individual bio information, and the Smart home security technology dealing with the biometric security and motion sensors, etc. have been studied. The power monitoring terminal which uses a variety of wired and wireless networks and protocol is the target additionally to be considered in addition to the security vulnerabilities that was occurred in the existing terminal. In this research paper, the author analyzes the cryptographic techniques corresponding to the smart meter occurred by the problems that are exposed on the outside which are vulnerable to physical attacks, and intends to propose the design of the security systems for the Smart meter terminal being able to maximize the efficiency of the terminal.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.243-245
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• 2012

대표적인 수면장애로 수면 무호흡증과 코골이가 있는데 수면다원검사를 통해 진단할 수 있다. 그러나 수면다원검사는 비용적, 공간적, 시간적 제약이 수반되기 때문에 이를 해결하려는 연구가 대두되고 있다. 수면장애와 그 요인을 검출하기 위해 가속도센서, 소음센서, 온도센서, 습도센서로 구성된 측정 장치에서 획득한 데이터와 건강, 운동, 생활습관 데이터를 활용하여 어떤 요인에 의해 수면장애의 정도가 악화되고 개선되는지를 사용자에게 제공하는 의사결정 지원시스템을 설계한다. 또한 홈 게이트웨이와 뷰어 역할에 스마트 폰을 사용하여 일반인이 보다 쉽게 측정하고 측정결과와 추론결과를 지속적으로 확인할 수 있는 시스템을 제안한다.

• KIISE Transactions on Computing Practices
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• v.23 no.5
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• pp.284-292
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• 2017

With the development of Internet of Things (IoT) technology, the combination of ICT and medical services has been increasing to improve the quality of medical services. Using the IoTs, we can collect personal health information continuously in a patient's everyday life. We expect that this will improve the quality of medical service through analysis. However, the problem of ensuring the protection of personal information within the personal health information has been hampering the research, development, and application of such services. Other problems include lack of IoT devices and lack of user convenience for collecting health information about a patient's everyday life. Therefore, in this study, we construct a daily health information management service that can collect the health related information at any time and store this data in personal storage. This data is then only provided to the healthcare worker when necessary. We built a test bed for an IoT-based smart home platform and are currently conducting user experiments. Based on the results of this study, we are attempting to provide a high quality medical trial service based on daily health information through linkage with medical device manufacturers, medical clinics, insurance companies, etc. We expect the proposed health information management service will contribute to the revitalization of smart health care services via activating various health related IoT devices and analyzing daily health information.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.4
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• pp.677-686
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• 2023

In this paper, we study the design and implementation of a smart home outing care system that recognizes the user's purpose of going out and delivers useful information that can help when going out. RSS service data of the Korea Meteorological Administration can be transmitted in real time using ESP8266, and a system that can provide weather information to users after analyzing the data using Arduino MEGA is implemented. Using App Inventor, you can pack the necessary items without forgetting, and you can change the settings according to the desired weather and purpose. The position of the microphone was placed outside to increase awareness by 12%, and the sensitivity of the pressure sensor was set to a maximum of 210 kΩ. If there is an obstacle between the doors, the doors open automatically. An ultrasonic sensor was placed on the ceiling of the drawer to recognize an object within the range of 0.5cm to 10cm to check the existence of an object, and a camera was installed to research a security reinforcement system.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2006.11a
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• pp.91-94
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• 2006

This study aimed at researching Healthcare by the Smart Technology and the current change of people's need for Healthcare in the Bathroom. In future, it is necessary to develop the Bathroom of varied purpose. The Smart-healthcare will be the major issues at Smart Home design. Because increasing interest in Healthcare. Smart Technology is able to apply the design a bathroom for the architectural relations and realizes a remote healthcare in the Bathroom. This study will be analyze change function of Bathroom and the Smart Technology and Healthcare Systems. Therefore this study make proposal for the design of the Bathroom and the remote control of Healthcare using Smart Technology System in harmony with the special property for hygiene, physiology and Healthcare in the Bathroom.

• Information and Communications Magazine
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• v.30 no.10
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• pp.62-69
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• 2013

사이버물리시스템 (Cyber Physical Systems, CPS)은 우리가 살아가는 물리 세계와 센서, 엑츄에이터, 임베디드 컴퓨팅 시스템 등으로 구성된 사이버 세계와의 융합을 추구하는 새로운 패러다임이다. 본고에서는 CPS가 무엇인지, 왜 중요한지, 그리고 풀어야 할 숙제는 무엇인지에 대한 논의를 CPS 응용 어플리케이션의 관점에서 접근해본다. 특히 CPS 핵심 응용 분야 중 교통, 의료, 전력시스템과 관련하여 현재 대구경북과학기술원의 CPS글로벌센터에서 수행 되고 있는 연구와 그러한 연구의 기여도에 초점을 맞추어 논의를 진행한다. 즉 본고에서는 지능형 교통 시스템, 스마트 홈, 스마트 그리드 및 미래의 헬스케어 시스템에 관한 연구 소개를 통하여 CPS에 대한 실질적인 이해를 돕고 앞으로 CPS 연구와 관련하여 나아가야 할 방향에 대하여 논의한다.

• KIPS Transactions on Computer and Communication Systems
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• v.3 no.5
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• pp.141-150
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• 2014

In recent years, because of the development of ubiquitous technology in healthcare research is actively progress. Especially, healthcare service area is change to home for the elderly or patients from hospital. The technology to identify residents in a home is crucial for smart home application services. However, existing researches for resident identification have several problems. In this case, residents are needed to attach of various sensors on their body. Also relating private life, it is difficult to apply to resident's environment. In this paper, we used constraint-free sensor and unconscious sensor to solve these problems and we limited using of sensor and indoor environment in the way of working economical price systems. The way of multi-resident identification using only these limited sensors, we selected elements of personal identifications and suggested the methods in giving the weight to apply these elements to systems. And we designed the SABA mechanism to tract their location and identify the residents. It mechanism can distinguish residents through the sensors located each space and can finally identify them by using the records of their behaviors occurred before. And we applied the mechanism designed for applications to approve this location tracking system. We verified to the location tracking system performance according to the scenario.