• Journal of the Korea Institute of Information Security & Cryptology
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• v.27 no.5
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• pp.1117-1127
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• 2017

With the advent of Internet of Things (IoT), the number of devices connected to Internet has rapidly increased, but the security for IoT is still vulnerable. It is difficult to integrate existing security technologies due to generating a large amount of traffic by using different protocols to use various IoT devices according to purposes and to operate in a low power environment. Therefore, in this paper, we propose a normal network behavior profiling method based on big data analysis techniques. The proposed method utilizes a Hadoop/Hive for Big Data analytics and an R for statistical computing. Also we verify the effectiveness of the proposed method through a simulation.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.5
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• pp.27-32
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• 2016

In general, IoT(Internet of things) designate the intelligence technologies and services which interact all necessity information between human and things, things and thing and things and systems with all things connecting through the internet based. The smart home in present of IoT environment fuses the daily supplies/equipment which needs to use for the private life with the internet of things that is the fruit of the converged business through all most private consumption related in vastly. The concept of smart home has been built around early 2000s due to the spread of high speed internet and advanced of smart electronics and internet, furthermore influencing by the enhancement of wireless network and smart devices, it is advanced as a smart home within the internet of things environment. Smart home service inside the house which most closely implemented with personal life is being developed and advanced in various forms. These developments may exert a positive effect, but if it does not resolve the security issues for the smart home service, then it may cause a big plague of privacy and personal life.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.336-342
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• 2017

Traffic can be localized by reducing the traffic load on the physical network by causing traffic to be generated at the end of the packet network. By localizing traffic, the IoT-based sensitive data-related security issues can be supported effectively. In addition, it can be applied effectively to the next-generation smart network environment without changing the existing network infrastructure. In this paper, a content priority scheme was applied to smart network-based IoT data. The IoT contents were localized to efficiently pinpoint the flow of traffic on the network to enable smart forwarding. In addition, research was conducted to determine the effective network traffic routes through content localization. Through this study, the network load was reduced. In addition, it is a network structure that can guarantee user quality. In addition, it proved that the IoT service can be accommodated effectively in a smart network-based environment.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.2
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• pp.309-315
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• 2017

Recently it has drawn much attention on the technologies about Internet of Things (IoT) which connects objects with constrained resource and heterogenous communication module in order to communicate information via internet. We propose a real-time sensor monitoring system based on IPv6 over Bluetooth Low Energy (BLE), which is included in Bluetooth 4.2 Specification. Since this system uses a publish-subsribe based IoT protocol, so called Message Queueing Telemetry Transport (MQTT), neither transforming network data nor any proxy server is needed in order to transmit data. Through the web client connected to this system, you can monitor sensor data sent by BLE device in real-time, intermediated via MQTT broker and then delivered to the client via HTTP and websocket protocol. In this paper we evaluated network capacity and availability of the implemented test platform. Thus by using this system it is possible to make development cost low and to construct IoT network with heterogenous devices easily.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.1
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• pp.867-874
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• 2018

This study aims to develop a sort of expert system to simulate Internet of Things (IoT) service in architectural design alternatives and enhance the simulation performance using building information. The proposed protype system, named iotBIM, visualizes human behaviors and IoT services in a virtual place that is automatically generated from among design alternatives. We use commercial building information modeling (BIM) authoring tool for the development of iotBIM. The decision to develop iotBIM on the BIM platform was made because BIM tools already generate precise 3D models of design alternatives; iotBIM is plugged into the BIM tool as a simulation module. In the midst of the design process, architectural designers can activate iotBIM to investigate and establish IoT services that accord visually with design alternatives. The purpose of this study is to provide a theoretical and technological basis for the ultimate goal of this study.

• Information Systems Review
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• v.18 no.4
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• pp.173-187
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• 2016

This study on the social effects of Internet of Things (IoTs) provides an overview of future job prospects through the scenario planning approach, highlighting the challenges and opportunities that IoTs will bring in the future. IoTs and the related field of technological innovations have become increasingly important in both academic and business communities in the past few years because of computing power breakthrough and its price drop. IoTs enables people to deal with routine works efficiently and challenges them even in non-routine and/or cognitive tasks, which are considered a unique area for individuals. The scenario planning analysis helps us to define the uncertain boundary and to estimate the potential opportunities and inherent threats to provide decision makers with a mind map on how the development of IoTs can influence employment. To assess the potential effects on jobs described in our scenarios, we briefly examine the local structure of employment and discuss which careers are expected to decline or grow in particular among the 52 standard occupational classifications in Korea.

• Information and Communications Magazine
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• v.33 no.12
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• pp.3-11
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• 2016

본고에서는 최근 가장 주목 받고 있는 연구 분야 중 하나인 사물인터넷(Internet of Things, IoT)을 위한 Domain Name System(DNS) 네이밍 서비스 기술동향에 대해 소개한다. IoT 환경에서 IoT 디바이스를 관리하기 위해 DNS 네임을 일일이 수동적으로 설정하는 것은 비효율적이다. 따라서 본고에서는 IoT 환경에서 수많은 IoT 디바이스의 관리를 위한 IoT 디바이스의 DNS 네임 자동설정 및 네이밍 서비스 기술에 대해 소개하고 분석한다. 본고에서 소개하는 IoT 네이밍 서비스 기술은 Internet Engineering Task Force(IETF)에서 제정된 표준 프로토콜을 이용하므로 구현이 용이하고 성능적인 면에서도 우수하다. IoT 디바이스의 DNS 네임이 사용자들에게 가독성 있으면서도 기계적으로 파싱이 용이하면 IoT 디바이스 관리를 효과적으로 수행할 수 있다. 즉 설정된 IoT 디바이스 DNS 네임으로 인터넷 사용자가 스마트폰과 태블릿과 같은 모바일 스마트 디바이스로 IoT 디바이스를 원격에서 모니터링 및 원격제어 할 수 있다. 본고에서는 IoT 디바이스에 연관된 네이밍 서비스 기술들을 비교 분석하고, 본 저자가 제안하는 IoT 디바이스 DNS 네이밍 기술을 소개하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.321-324
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• 2019

최근 국내에는 실업률 상승, 혼인률 하락 등 청년층 생애주기 변화, 단독거주, 고령층의 증가에 따라 1인 가구가 빠른 속도로 증가하고 있다. 이러한 추세는 지속될 것으로 예상되어 1인 가구를 겨냥한 맞춤형 보안솔루션에 대한 관심이 고조되고 있다. 본 논문에서는 사물 인터넷 기술을 적극적으로 접목할 수 있을 것으로 기대되는 디지털 도어락의 구현에 관한 연구를 수행하였다. 사물 인터넷 기술은 5G 시대의 도래에 따라 다시금 주목받고 있다. 이는 4차 산업혁명 시대의 핵심 기반 기술로 주요 IT 기업들이 상용화 기술 확보를 추진하고 있는 상황이다. 한편 디지털 도어락은 열쇠가 필요하지 않으며 위급상황이나 안전상황에 클릭 한번으로 출동 요원의 출동을 곧바로 요청할 수 있어 고객에게 편의성과 보안성을 제공한다. 하지만 비밀번호 방식의 디지털 도어락은 주기적으로 비밀번호를 교체해주지 않는 이상 지속적으로 같은 자리의 버튼만을 누르게 된다. 이렇게 되면 해당 위치에 지문이 남아서 비밀번호가 노출될 위험이 있다. 그러나 사물 인터넷 기술을 이용한 디지털 도어락을 사용하게 된다면 안전한 도어락 사용으로 주거 보안을 실현할 수 있다. 따라서 1인 가구를 노리는 범죄를 예방하기 위해 라즈베리 파이와 아두이노의 UART 통신, 머신러닝 CV를 이용하여 얼굴 인식으로 동일인임을 판단하는 디지털 도어락을 구현했다.

• Journal of Internet of Things and Convergence
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• v.6 no.2
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• pp.31-36
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• 2020

The remarkable change in the automobile industry, which is a traditional industrial field, is now evolving into a form of moving toward autonomous functions rather than humans due to various convenience functions and automatic driving or autonomous driving technologies if the person was central when driving the car. This situation is expanding to various industries such as the aviation industry and the drone market, as well as the robot market. The drone market in the aviation industry is being used in various fields due to the unmanned nature of drone operation. Among them, military drones are secret and due to the specificity of technology, details are not disclosed, but as a collection of advanced technologies, they have played a key role in drone development. In this study, the current status of China and the European Union, including the United States, which are major competitors in the drone field, was investigated, and the technologies of major countries were compared and analyzed through the characteristics and operational specifications of the drones currently in operation.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.2
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• pp.175-188
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• 2017

Radio-frequency identification (RFID) is being used in various fields as a technology for identifying objects (people, things etc.) using radio frequencies. In the past, there was an attempt to apply RFID into national defense, but failed to spread RFID in the defense field because of some limitations of RFID in a specific situation (e.g., low recognition rate). Therefore, in this paper, we propose how to overcome the limitation of RFID by adopting the Internet of Things (IoT) technology which is considered as an important technology of the future. Furthermore, we propose four scenarios (i.e., healcare band and RFID, identification and anormal state detection, access control, and confidential document management) that can be used for enhancing national defense security. In addition, we analyze the basic characteristics and security requirements of RFID and IoT in order to effectively apply each technology and improve security level.