• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.12 no.2
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• pp.135-141
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• 2019

Internet of thing becomes more active, many sensor devices are increasing. Sensors can use network wired network or use mobile communication network. From the viewpoint of the transmission rate, the mobile communication network can be roughly divided into two types of high-speed communication and low-speed communication. In the case of hundreds of millions of sensors in the mobile communication network, resources are wasted to use high-speed communication. Communication is required to reduce the transmission rate and appropriately allocate resources without wasting such resources. As the Internet of Thing has been activated, Narrowband Internet of Thing(NB-IoT), which is one of the low-power technologies in recent mobile communications, is in the spotlight from various companies. Currently, it can be seen that only NB-IoT or other low power consumption communication has the potential to be able to connect to the Internet with rapidly increasing sensor devices. In this paper, we designed and implemented a heater controller using Huawei NB-IoT communication Module, a server that collects controller information, and an application that allows default settings for devices. The main function of this system is to collect temperature and heater status and give it to the server, control the heater from the server, and set parameters for the heater to operate automatically. The system can be applied to places where wired communication is not established, such as road information, smart agriculture, and small reservoirs as well as heaters.

• Journal of Korean Library and Information Science Society
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• v.45 no.2
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• pp.235-260
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• 2014

This study aims to apply the concept of Internet of things to library and interpret a library as ecological space where human, thing and data are communicating and organically networking through internet. First, we defined various things existing in physical spaces of the real world and internet spaces as elements of Internet of Things. Then we proposed to apply a semantic web platform to integrate different meta-data formats and communication protocols from things. Finally, we provide the model of Internet of Things based on Semantic web to utilize a variety of information from things for library management and user service.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.8
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• pp.1188-1198
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• 2006

This study recognizes that individual's experience is important in change over Internet fashion consumers to Internet users, and find out fashion consumer's flow experience in Internet shopping of the fashion merchandise. Also, the purpose of this study is to analyze whether flow experience and perceived utilitarian value have an effect on Internet purchase intention of the fashion merchandise. To fulfill this objectives, a survey was conducted out from June 20 to July 30 in 2005, and an subject of study was married women aged from 20s to 30s in purchase experience of the fashion merchandise to Internet shopping malls. Data collected over the Internet, and analyzed the 306 subjects. The statistical analysis methods was frequency analysis, reliability analysis, factor analysis, multiple regression analysis. 3 hypotheses were accepted, the result of this study were as follows: First, a married women aged from 20s to 30s in purchase experience of the fashion merchandise to Internet shopping malls were skilled Internet enough to regarding Internet shopping as an easy thing, and was challenged in Internet activity. Their Internet skills, challenges and interaction had an effect on flow experience and perceived utilitarian value. Therefore, the more Internet skills, challenges. and interaction were higher, the more flow and utilitarian value about Internet shopping was higher. Second, a married women aged from 20s to 30s were high-purchased group of the fashion merchandise to Internet shopping malls, and had a repurchase intention in Internet shopping mall within the purchase experience of the fashion merchandise. Their flow experience and perceived utilitarian value had an effect on Internet purchase intention of the fashion merchandise. Therefore, the more flow experience and perceived utilitarian value were higher, the more Internet purchase intention of the fashion merchandise was higher.

• International Journal of Internet, Broadcasting and Communication
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• v.16 no.2
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• pp.50-58
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• 2024

Body temperature plays an important role in medicine, some diseases are characterized by changes in human body temperature. Monitoring body temperature also allows doctors to monitor the effectiveness of medical treatments. Accurate body temperature measurement is key to detecting fevers, especially fevers related to infection with the SARS-CoV-2 virus that caused the recent Covid-19 pandemic in the world. The solution of measuring body temperature using a thermal camera is fast but has a high cost and is not suitable for some organizations with difficult economic conditions today. Use a medical thermometer to measure body temperature directly for a slow rate, making it easier to spread disease from person to person. In this paper, we propose a completely automatic body temperature measurement system that can adjust the height according to the person taking the measurement, has a measurement logging system and is monitored via the internet. Experimental results show that the proposed method has successfully created a fully automatic human body measurement system. Furthermore, this research also helps the school's scientists and students gain more knowledge and experience to apply Internet of Things technology in real life.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.411-416
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• 2008

모바일을 통한 커뮤니케이션은 우리 생활에 밀접하게 관련되어 있고, 없어서는 안될 부분이다. 이 현상은 웹을 가진 인터넷보다도 더 중요한 삶의 부분이 되었으며, 미래까지도 계속적으로 아주 빠르게 중요성을 더욱 커질 것이다. 우리는 인간과 인간의 커뮤니케이션을 넘어, 존재하는 모든 사물들과 커뮤니케이션을 원하고 있다. 자연스럽게 "Internet of Things"의 시대로 우리는 나아갈 것이고, 인간과 사물, 사물과 사물간의 커뮤니케이션 발전 정도에 비례하여 유비쿼터스 세상이 얼마나 빠르게 도래되는지 결정될 것이다. 인간과 사물과의 단순한 커뮤니케이션은 우리가 의도적으로 목적을 가지고 사물과의 커뮤니케이션을 원할 때만 가능한 것이다. 하지만, Internet of Things의 사회가 도래도면 우리가 관여하지 않아도 사물들간의 커뮤니케이션을 자율적으로 유지되고 지속적으로 연결되어 있어야만 한다. 이를 위하여 각 사물은 다른 사물들과의 구별, 차이를 가지기 위해 자신만의 고유한 성질인 메타데이터를 가지고 있어야 하고, "Spime" 개념을 이용하여 이를 구체화하고 이해관계를 설명할 수 있을 것이다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.14 no.4
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• pp.27-33
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• 2018

The recent efforts in academia and industry represent a paradigm shift that will extend the IoT from the home environment so that it is interoperable with the Internet of Vehicles (IoV). IoV is a special kind of IoT. It allows to connect between vehicle and things located in infrastructure. Furthermore, IoV enable to create new intelligent services through collaboration with existing various services such as smart city and connected home. In this paper, we develop a service in order to realize IoV. To this end, we design a novel vehicle service platform which could automatical controlling the IoT device according to drivers' voice. To show practical usability of our proposed platform, we develop a prototype service could be call car-to-thing (C2T). We expect that our proposed platform could eventually contribute to realizing IoV.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.29 no.8B
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• pp.747-754
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• 2004

The Internet is in the phase of transition of IPv6 and the network equipments based on IPv6 are released. A lot of investments are done in development of network equipments but important thing is service technology. And a various experiments are performed for this service technology. However, the performance measurements of a router between IPv4 and nv6 networks are mainly focused. Therefore, the performance measurement of Internet application services need to be done. In this paper, we show the performance analysis results that the Internet application services are provided regardless of network infra and protocols. As a result, we know that the efficiency of dual networks is lower than the native network for the Internet application services.

• The Journal of Bigdata
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• v.7 no.1
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• pp.15-27
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• 2022

In the past five years, the fatality rate of single-vehicle accidents has been 4.7 times higher than that of all accidents, so it is necessary to establish a system that can detect and respond to single-vehicle accidents immediately. The IoT(Internet of Thing)-based real-time traffic accident recognition system proposed in this study is as following. By attaching an IoT sensor which detects the impact and vehicle ingress to the guardrail, when an impact occurs to the guardrail, the image of the accident site is analyzed through artificial intelligence technology and transmitted to a rescue organization to perform quick rescue operations to damage minimization. An IoT sensor module that recognizes vehicles entering the monitoring area and detects the impact of a guardrail and an AI-based object detection module based on vehicle image data learning were implemented. In addition, a monitoring and operation module that imanages sensor information and image data in integrate was also implemented. For the validation of the system, it was confirmed that the target values were all met by measuring the shock detection transmission speed, the object detection accuracy of vehicles and people, and the sensor failure detection accuracy. In the future, we plan to apply it to actual roads to verify the validity using real data and to commercialize it. This system will contribute to improving road safety.

• Proceedings of the CALSEC Conference
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• 2004.02a
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• pp.65-72
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• 2004

The Internet is a social and economic foundation, apparently destined for human communication and interaction. It is supposed to allow for more interactive and innovative ways for people to do what they do in 'real lift'. There is no shilly-shallying to say that at present, Internet has become a commanding and useful tool for empowerment and income making in developing countries. It is very difficult to say that at present internet has turned into a popular and useful thing among the Bangladeshi people like students, doctors, engineers, businessmen, researchers as well as politician who are being logged into the internet for getting information what they want. Though the Internet was invented in 1970 but it came late in Bangladesh through UUCPs (Unix-to-Unix copy) email connectivity in 1993 and IP connectivity in 1996. Having launched Internet, on June 1996 National polls result were broadcast through the using of World Wide Web (WWW) that was the first ever practice trial in Bangladesh. On June 1996, the government has approved to allow VSAT (Very Small Aperture Terminal) in the country's private sector to operate as Internet Service Provider (ISPs). At the end of year, there were only two ISPs in the country and number of users near about one thousand only. But next year in 1997, the total number of ISPs was more than a dozen and the clientele growth was ten times higher than that of the previous year. From then, the number of Internet users and ISPs are increasing significantly in Bangladesh. About 40 ISP are providing internet service among as many as 3, 20,000 users at present out of almost 130 license holder ISP provider but among the ISPs, most of the ISPs are placed in Dhaka and few are working in Comilla, Sylhet, Rajshahi, Chittagong and Khulna. It should be mention that currently, broadband internet (Radio, Cable) connection is working side by side dial -up connection where broadband accounts 10,000. This paper will have a comprehensive discussion on the current situations of Internet and some of the contemporary issues in the matter concerned.

• Review of KIISC
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• v.24 no.4
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• pp.56-65
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• 2014

최근 IT 업계의 큰 화두가 되고 있는 사물 인터넷(Internet Of Thing : IoT)은 아직까지 기술 개발 및 초기 도입단계에 있다. 급속한 IT 기술의 발전에 따라 모든 사물을 연결하는 초 연결 사회로서의 길이 열린 지금, 열린 가능성만큼 보안 취약점 또한 나날이 증가해가고 있다. 본 논문에서는 사물 인터넷 환경 하에서 센서 네트워킹 보안을 위한 기술로 XMPP와 IEEE의 P21451-1-4에 대하여 분석하였다.