• Proceedings of the Korean Society of Computer Information Conference
• /
• 2016.01a
• /
• pp.85-86
• /
• 2016

본 논문에서는 IoT 환경에서 IoT 게이트웨이를 통해 제공되고 있는 서비스 탐색 프로토콜에 대한 문제점을 분석하고 이를 해결하기 위한 해결방법에 대한 방향을 제시한다. 현재 다양한 IoT 서비스 탐색 프로토콜이 제안되어 있으며 제안된 서비스 탐색 프로토콜은 IP 기반 프로토콜과 non-IP 기반 프로토콜로 구분된다. 최근 IoT 기반 홈 네트워크 서비스 제공을 위해 스마트 IoT 게이트웨이가 개발되었다. 제안된 IoT 게이트웨이는 이종 네트워크 인터페이스에 대한 프로토콜 컨버팅 기능은 제공하고 있으나 서비스 탐색에 대한 홍보기능을 제공하고 있지 않다. 따라서 상이한 인터페이스로 구성된 IoT 디바이스에 대한 서비스 탐색 기능을 제공하지 못한다. 본 논문에서는 이런 문제점을 정의하고 이를 해결하기 위한 IoT 게이트웨이 내부 기능을 정의하고 추가적으로 공통 IoT 서비스 탐색 프로토콜 개발에 대한 방향을 제시한다.

• KIPS Transactions on Software and Data Engineering
• /
• v.11 no.2
• /
• pp.67-80
• /
• 2022

Recently, many laundry home appliances have been released with Internet of Things (IoT) functions, but there are few quality evaluation tests for IoT functions. In particular, since IoT test items are not prepared for laundry home appliances applied with IoT functions, it is difficult to find the cause even if defects occur, and test institutions are limited in selecting test items related to IoT and conducting proper performance tests. In this paper, we design a test item framework that separates IoT test items into commonality and variability to identify product defects and causes for laundry home appliances with IoT features among products in the field of home appliances. Through the proposed research, manufacturers and test institutions can test the proper performance of laundry products with IoT functions, which can improve the completeness of the products and ensure reliability.

• KIPS Transactions on Software and Data Engineering
• /
• v.10 no.6
• /
• pp.211-222
• /
• 2021

Recently, frozen and refrigerated appliances on the market are being released with additional IoT functions, but there are few tests on IoT functions. In particular, the existing test system does not have IoT test items for IoT-based frozen and refrigerated appliances, making it difficult for companies to find the cause even if defects occur, and test institutions are also restricted from selecting IoT-related test items and conducting correct performance tests. In this paper, we design a test item framework that can identify product defects and identify causes in the performance test process of frozen and refrigerated products with IoT functions among products in the home appliance field, and propose test methods and management measures using them. Through the proposed research, manufacturers and testing institutions can test the correct performance of IoT-based frozen and refrigerated products, thereby enhancing the completeness and securing reliability of the products.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2018.05a
• /
• pp.581-583
• /
• 2018

사물인터넷 (IoT) 기술의 발전으로 최근 많은 가전제품 및 전자 제품들이 IoT 기술과 결합되어 출시되고 있으며, 전원을 연결하는데 사용되는 멀티탭 또한 IoT 기술이 접목된 제품이 나오고 있다. IoT 멀티탭은 전원 on/off 를 원격으로 제어 할 수 있어서 사용자 편의성을 더욱 높여주었다. 그러나, 현재 출시된 IoT 멀티탭 제품들은 각 구별 제어가 불가능하고 대기전력 차단 기능이 미흡하여 절전 기능이 빈약하다. 따라서 본 논문에서는 멀티탭의 각 구를 개별 조작할 수 있고, 대기전력을 측정 및 차단 기능을 제공함으로써 전력 낭비를 줄일 수 있는 IoT 멀티탭을 제안한다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.14 no.1
• /
• pp.98-103
• /
• 2021

In this study, we propose a group communication technique that guarantees security and expandability by configuring a network consisting of IoT terminals equipped with security functions. As the number of devices participating in the network increases, network resources are proportionally reduced, and adding a security function to the IoT device increases the delay time due to encryption in the IoT device. If the error rate that occurs in the network increases, network resources are quickly consumed due to retransmission. Therefore, IoT terminals are grouped to ensure scalability while supporting security, reducing the consumption of network resources even when the number of participating nodes increases, thus ensuring scalability. For the future implementation, the encryption method used in IoT terminals considered the standard of IEEE802.5.4, and the standardization trend was investigated and classified. The proposed method applies IoT devices that provide security functions of the IEEE802.5.4 standard to the group communication base to ensure reliability and scalability. In the performance evaluation, the effectiveness of the proposed method was confirmed by comparing the delay times when grouping IoT devices with security functions through simulation.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.16 no.5
• /
• pp.151-156
• /
• 2016

The IoT technology and sensors used for collecting the environment information has rapidly increased the number and type. With the increasing need for this type of sensor effective system for selecting and testing the sensor nodes for the IoT to develop products and services. In this study, we design and implement IoT sensor testing system for IoT service and product. In order to support rapid prototyping, the proposed system provides testing and management tools for IoT sensor nodes. We analyze the requirements of the proposed system and design the system based on the functional component-specific design. Finally, we implement testing application to verify the functional elements of the proposed system.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
• /
• v.8 no.6
• /
• pp.909-917
• /
• 2018

Recently, the Internet of Thing (IoT) technology is expanding explosively in the number of devices and applications in many application areas. In IoT systems, sensors and actuators are connected to the Internet and cooperate to do some applications by exchanging information. In this paper an IoT smart home system is developed to monitor and control home devices easily. Our system consists of sensor devices, IoT gateways, and an IoT server. Sensor devices developed using Rfduino sense the physical world and transmit their data using BLE to the IoT server thru the IoT gateway. We implemented the IoT gateway using Raspberry Pi and the IoT server using ARTIK cloud. We installed our system and made a test in our lab, which showed that our system can be installed and managed easily and extended its functionality in an easy way. By taking advantage of the rule mechanism and action messages of ARTIK cloud, we implemented the control of device parameters easily by sending action messages to the ARTIK cloud.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2022.10a
• /
• pp.344-345
• /
• 2022

ogy is being used in many fields, such as smart farms, smart oceans, smart homes, and smart energy. Various IoT terminals are used for these IoT services. Here, IoT devices are physically installed in various places. A malicious attacker can access the IoT service using an unauthorized IoT device, access unauthorized important information, and then modify it. In this study, to solve these problems, we propose an authentication system for IoT devices used in IoT services. The IoT device authentication system proposed in this study consists of an authentication module mounted on the IoT device and an authentication module of the IoT server. If the IoT device authentication system proposed in this study is used, only authorized IoT devices can access the service and access of unauthorized IoT devices can be denied. Since this study proposes only the basic IoT device authentication mechanism, additional research on additional IoT device authentication functions according to the security strength is required.IoT technol

• KIPS Transactions on Computer and Communication Systems
• /
• v.7 no.2
• /
• pp.59-66
• /
• 2018

Android Things is an Android-based platform running in Google's IoT environment. Android smartphones require permissions from application users to use certain features, but in the case of Android Things, there is no display to send request notifications to users. Therefore Does not make a request to use the permissions and automatically accepts the permissions from the system. If the privilege is used indiscriminately, malicious behavior such as system failure or leakage of personal information can be performed by a function which is not related to the function originally. Therefore, By monitoring the privileges that a device uses in an Android-based IoT system, users can proactively respond to security threats that can arise through unauthorized use of the IoT system. This paper proposes a system that manages the rights currently being used by IoT devices in the Android Things based IoT environment, so that Android-based IoT devices can cope with irrelevant use of rights.

• Convergence Security Journal
• /
• v.14 no.7
• /
• pp.45-51
• /
• 2014

The most important point in the QoS management system to ensure the quality of the IoT system design goal is quality measurement system and the quality evaluation system. This research study is a matrix model for the IoT based on key quality measures by diagnosis system structure and function. Developing for the quality metrics measured Internet of Things environment will provide the foundation for the Internet of Things quality measurement/analysis. IoT matrix system for quality evaluation is a method to describe the functional requirements and the quality requirements in a single unified table for quality estimation performed. Comprehensive functional requirements and quality requirements by assessing the association can improve the reliability and usability evaluation. When applying the proposed method IoT quality can be improved while reducing the QoS signaling, the processing, the basis for more efficient quality assurances as a whole.