• Journal of IKEEE
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• v.24 no.4
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• pp.1180-1183
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• 2020

Recently, the daily life safety detection functionalities such as fall accident detection and burn danger detection are widely disseminated along with the development of IoT and smart home. These safety detection functionalities are mostly performed by artificial intelligence. However, simple accuracy measurement of the safety detection in laboratory environment is often far from practical performance in daily life environment. To mitigate this problem, this paper introduces two techniques, i.e. living lab and confusion matrix. Living lab is more than simple simulation of daily life environment, and it enables users to directly participate technology development and product design. Various performance measures induced from confusion matrix significantly help to evaluate the performance of artificial intelligence system for proper application purposes.

• The Journal of Industrial Distribution & Business
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• v.14 no.3
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• pp.1-8
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• 2023

Purpose: One of the eldest businesses in the realm is the real estate market and it has been dominated by offline sales and marketing tactics for decades. However, the home-buying process today is made simpler and more effective for purchasers thanks to internet platforms. This study is to investigate in terms of advantage of online platform of the real estate and its marketing strategy. Research design, data and methodology: For checking and collecting proper literature resources, content literature investigation used and it would be fitted for this research based on numerous prior studies in the realm of marketing strategies and online platforms of real state. Results: Online real estate platforms provides the availability of a broad range of properties for buyers and sellers, and connects buyers and sellers with nearby real estate mediators and agents. Finally, we figured out that utilizing real estate agents might have a huge positive impact on real estate agents. Conclusions: As online platforms become increasingly popular for real estate professionals, practitioners must be aware of the changes in technology and the resulting implications for how they market and sell property. Future research should explore the effect of online platforms on customer satisfaction and the overall accomplishment of real estate businesses.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.243-246
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• 2020

스마트 홈 시스템은 앞으로도 계속 기술의 발전과 수요가 증가하는 블루오션 시장이다. IT 시장의 주목을 받는 아이템을 다룬 만큼 이 작품이 높은 발전 가치와 시장성을 보유하고 있다고 볼 수 있다. 스마트 홈 시스템 구축을 통해 개인에게 최적화 된 라이프 스타일을 구축하고, 더 나아가 개인에게 맞는 환경을 설정하여 맞춤 라이프 연계 서비스를 제공한다. 더 나아가 주목받는 이슈인 인공지능 기술을 사용하여 스마트 기기들에 대한 지능형 제어 및 효율적인 관리가 가능하도록 한다. 게이트웨이 서버에 에어컨, 공기청정기 등 우리 실생활과 밀접한 기기들에 연결함으로써 기존의 기기들에 비해 중요한 기기들을 더 높은 빈도로 관리할 수 있다. 이 프로젝트는 스마트 홈의 기본이 되는 통합 제어시스템과 이를 위한 IoT 허브 시스템의 하드웨어를 모두 개발한 프로젝트로써 게이트웨이 서버로 대표 되는 하드웨어를 통해 스마트 기기의 상태를 모니터링 하다가, 특정 센서값을 받으면 액션을 취해줌으로써 스마트기기를 제어할 수 있다. 그리고 이들과 관련하여 IoT 기반의 다양한 기기들을 표준화 제어하기 위한 제어 시스템을 구축하고 이를 위한 소프트웨어도 함께 개발했다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.05a
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• pp.93-95
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• 2021

최근, 다양한 정보의 수집 및 처리가 필요한 스마트 홈, 의료, 교통, 제조 등 여러 산업 분야에서 IoT(Internet of Things)가 많이 활용되고 있다. 특히 스마트 홈 환경에서 IoT 장치로 수집되는 정보는 민감한 개인 정보를 포함할 수 있기 때문에 특정 그룹이나 개인만이 해당 정보에 접근할 수 있도록 관리할 필요가 있다. 또한, IoT 환경에서 Blockchain 기반으로 데이터의 신뢰성을 확보하는 분산 저장소의 경우, 지연 시간의 증가 문제가 발생될 수 있기 때문에 실시간 데이터 수집에 대한 처리 속도를 향상할 방안이 필요하다. 본 논문에서는 사용자와 IoT 장치 간 생성한 그룹 ID 로 해당 그룹에 대한 접근 권한을 관리하고, Hyperledger Fabric 과 별도의 데이터베이스 운용으로 실시간성, 신뢰성을 향상할 수 있는 Hyperledger Fabric 기반 스마트 홈 Architecture 를 제안한다. 이 Architecture는 IoT 장치가 사용되는 다양한 환경에서 보안성, 실시간성, 신뢰성을 향상할 수 있을 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.425-426
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• 2021

Recently, there have been frequent incidents of talent accidents caused by youth driving without a license. Driving without a license is becoming a hotbed of curiosity and challenge for some young people, and there is a limit to managing smart keys at home to prevent this. Therefore, in this paper, using the facial recognition algorithm, the face of the driver sitting in the driver's seat is compared with the information stored in advance, and the system is designed to control the engine by determining that it is a registered driver. If the registered driver authentication is successful, the matching accuracy and Unlock message are output to the LCD connected to the Raspberry Pi.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.983-985
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• 2022

2022년 기준, 독거노인 가구 수 176만 가구 시대에 노인을 위한 케어 서비스가 필요하다. 고령화 사회에 맞춰, 노인 케어 서비스가 많이 출시되었으나 비대면 케어 서비스는 부족한 면이 있다. 비대면 케어 서비스의 경우, 특히 비싼 값에 판매된다는 단점과 로봇과 소통해야 한다는 단점이 있다. 이를 보완하여 저렴한 가격에 생명력을 지닌 식물을 이용해 소통을 증진시켜 우울감 해소를 돕는다면, 노인 비대면 케어 체계에 큰 도움을 줄 것이라고 확신한다. 이에 따라, 본 연구에서는 식물와 어플리케이션을 이용하여 저가격 보급화가 가능한 비대면 복지 시스템을 개발하고자 한다. 구체적으로, 화분이라는 대화 매개체를 통해 어르신들의 대화 증진을 유도하여 우울증 완화에 도움을 주고자 한다. 또한, 시스템을 통해 수집되는 일상 데이터를 활용해 이상징후를 파악하여 고독사 예방을 위한 후속 조치를 취할 수 있다. 본 논문에서는 위의 시스템을 통해 복지 사각지대를 해소하며, 어르신들의 정신 건강 증진에 기여할 수 있을거라 기대한다.

• Journal of Korean Society for Quality Management
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• v.52 no.2
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• pp.323-340
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• 2024

Purpose: The purpose of this study was to propose useful suggestions by analyzing research Xiaomi which are big data analyses, by collecting data based on Customer Perception in Textom. Methods: The collected data through scraping social media on the Textom site. And data preprocessing was performed using deleting and organizing data(text) that are duplicated, irrelevant, and where there is no meaning. The derived data were analyzed using Textom and Ucinet 6.0 with Text Analysis, WordClould, TF-IDF, Network Analysis, and Emotional analysis. Results: The results of this study are as follows; although the results of Xiaomi's text at domestic and global were similar, it was analyzed that there were perceptions of Xiaomi-related smart home products and cost-effectiveness in Korea, while in foreign countries, there were perceptions of functions and performance centered on smartphones. At domestic and global, the perception of Xiaomi was analyzed to be positive, and implications were presented based on these analysis results. Conclusion: Based on the results, if the product's performance or product competitiveness is considered to be meaningful in the market, and it is expected that there will be an opportunity to change the overall image of Chinese products.

• Fashion & Textile Research Journal
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• v.14 no.4
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• pp.614-628
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• 2012

The purpose of this study was to analyze research trends and make suggestions regarding the future of information technology (IT) in the fashion industry. In this study, 437 papers written regarding IT fashion from five major journals published between 2000 and 2011 were examined. The research areas were then organized by subject and keyword, and divided into 16 high-context categories. Two IT fashion maps were constructed, one from a fashion consumer's perspective, and the other based on the fashion industry's supply chain. This study identified important trends in IT fashion such as: 3D scanners, 3D digital renderings of the human form, 3D digital garments, smart garments, mass customization, production automation, online shopping, home shopping, online communities, e-commerce, digital media, virtual reality, e-tail, the digital generation, E-CRM, and education. Data from body scans was collected and applied to production, and research on smart textiles was also carried out. As for IT fashion's service areas, the majority of the research focused on online shopping or online communication. Additionally, research done on avatars and cyber space, and studies on social networking services are shown. The results of this study indicated that a new field of research has opened and that current research has been developing. Also, this study showed what is needed to expand and strengthen IT fashion.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.27 no.4
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• pp.743-751
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• 2017

As smart phones are becoming popular, an operating system is being used at wearable devices, home appliances and smart TVs. A user is able to use various applications on devices with operating system, but there is an increased threat of hacker. Thus, the technology for detecting the forgery of applications is becoming more important on operating system. To detect the forgery of the application, a digital signature technology is used on the filed of application digital signature. According to W3C recommendation, the signing process of application digital signature must be performed at least twice, and the applications which are signed by the application digital signature have to be validated for all signature files when the application is installed in the operating system. Hence, the performance of the application digital signature validation system is closely related to the installer performance on the operating system. Existing validation system has performance degradation due to redundancy of integrity verification among application components. This research was conducted to improve the performance of the application digital signature validation system. The proposal of validation system which is applied proxy system shows a performance improvement compared to the existing verification system.

• Journal of the Korea Society of Computer and Information
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• v.20 no.3
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• pp.1-8
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• 2015

The most used smart set-top box in home driven by the Android OS and based on Wi-Fi technology has to ensure nothing wrong with the Wi-Fi service regardless of the various user's installation environment. The direction test method about the nondirectional of the Wi-Fi doesn't be determined as the standard and each manufacturers devise the their own test methods and conduct the tests. In this paper, we created the 720 test cases considering 2 components of upload & download, the 10 elements of the vertical angle and the 36 elements of the horizontal angle looking at the wireless router in order to verify omni-directional Wi-Fi capability. In reality, from viewpoint in terms of cost and time constraint, it is difficult to test all the test cases. Therefore, we decided to reduce test cases by applying Pair-wise testing technique which is one of combinational testing techniques based on ISO / IEC 29119-4. And we obtained the test cases in which the Pair-wise technique was applied by Allpairs tool which output test cases automatically and conducted the test. It could be confirmed that the proposed technique shortened 48.61% of the time to be spent in progressing the existing test cases and that the trace about the part in which the problem was generated with the result of the simplified test case was possible enough.