• IEIE Transactions on Smart Processing and Computing
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• v.3 no.6
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• pp.393-396
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• 2014

Recently, the internet of things (IoT) has become increasingly attractive in many areas to realize smart worlds. JavaScript has become prevalent for IoT programming because of its familiarity with web programmers. On the other hand, JavaScript does not allow the direct control of IoT hardware due to its language limitation. This paper proposes the IoT software platform for JavaScript programming to resolve the limitation. For proof of concept, the platform based on SpiderMonkey and Raspberry Pi was implemented.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.855-858
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• 2015

최근 IoT에 대한 관심이 증가되면서 IoT 환경에서 다양한 서비스가 개발되고 있다. IoT를 통해 사물에 센서 혹은 액츄에이터 등 다양한 IT기술을 적용하여 사람과 사물, 공간이 통신을 하게 된다. IoT는 다양한 산업 분야에 적용되고 있으며 우리 생활과 밀접한 영역인 스마트 홈 분야에서도 시장 활성화가 진행되고 있다. 하지만 스마트 홈 환경에서는 인증되지 않은 사용자와 스마트 디바이스를 통한 해킹 및 악성코드 감염 등 다양한 보안 위협이 발생하게 된다. 이를 해결하기 위해 본 논문에서는 IoT 환경에 적합하도록 효율적이며 사용자, 스마트 홈을 연결하는 홈 게이트웨이, 스마트 홈 내의 스마트 디바이스 간 상호 인증을 제공하는 안전하고 효율적인 상호 인증 기법을 제안한다.

• Journal of Internet of Things and Convergence
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• v.2 no.1
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• pp.17-21
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• 2016

The rapid development of IoT leads new kinds of services which does not existed. And, it requires several changes on existing network. Software Defined Network is one of the future network technology which can deal with problems from these kinds of changes. The strong point of Software Defined Network is flexibility and scalability. However, In some cases, these factors could be the security vulnerabilities. In this paper, we present adaptation of F(I)MEA technique for the security analysis on Software Defined Network Technology for IoT services.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.7
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• pp.829-836
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• 2019

IoT devices are widely used in network construction and are increasing. If necessary, heterogeneous IoT devices are used for data transmission. This paper proposes to prevent the method of data loss due to differences in throughput when the local network is constructed by Bluetooth 5 and long range network does by LoRa(Long Range). Data loss occur when the data transmits through LoRa, due to the throughputs of Bluetooth 5 faster than that of LoRa. The prevent method proposed by this paper can apply not only Bluetooth 5 and LoRa but heterogeneous IoT devices and expect to prevent data loss due to differences in throughput between heterogeneous IoT devices. Also, this paper shows the simulation result by applying the proposed avoid method. In this paper, two way to the preventive method shows the data transmission ratio and amount of memory that of necessity.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.706-708
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• 2022

현대 사회에서 쓰레기 처리는 여러 사회 문제를 일으키고 있다. 넘쳐나는 쓰레기는 미관을 해치고 악취를 발생시킨다. 본 논문은 쓰레기 배출량이 쓰레기통의 수용 용량을 넘는 경우 웹과 앱을 통해 청소 관리자에게 알림을 제공하는 등의 편리한 쓰레기통 관리 시스템을 제안한다. 제공하는 앱과 웹은 데이터베이스와 아두이노 기반의 IoT 기술을 활용하여 쓰레기통 자동 개폐, 쓰레기 압축, 포화 용량 표시 등의 다양한 기능을 제공한다. 앱과 웹을 통하여 수집된 데이터는 추후 환경 관련 프로젝트에서 다방면으로 활용될 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.147-148
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• 2023

확장하는 디지털 인프라에 발맞추어 IoT 산업또한 점점 시장을 넓히고 있다. IoT 보안위협에 대한 대응준비는 아직 미흡하며 Mozi 봇넷 등 신규 IoT 봇넷의 등장과 증가하는 피해사례는 상황을 더욱 악화시키고 있다. 이에 본 논문에서는 Mozi 봇넷의 동작 원리를 기반으로 한 DHT 프로토콜의 흐름의 특징을 네트워크 로그에서 추출하고 이를 기계학습에 적용하는 탐지모델을 제안한다.

• Smart Media Journal
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• v.11 no.11
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• pp.32-39
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• 2022

As IoT applications that provide AI services increase, various hardware and software that support autonomous learning and inference are being developed. However, as the characteristics and constraints of each hardware increase difficulties in developing IoT applications, the development of an integrated platform is required. In this paper, we propose a tool for automatically generating components based on artificial neural networks and spiking neural networks as well as IoT technologies to be compatible with open platforms. The proposed component automatic generation tool supports the creation of components considering the characteristics of various hardware devices through the virtual component layer of IoT and AI and enables automatic application to open platforms.

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

• Smart Media Journal
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• v.11 no.3
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• pp.18-25
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• 2022

Neuromorphic computing generally shows significantly better power, area, and speed performance than neural network computation using CPU and GPU. These characteristics are suitable for resource-constrained IoT environments where energy consumption is important. However, there is a problem in that it is necessary to modify the source code for environment setting and application operation according to heterogeneous IoT devices that support neuromorphic computing. To solve these problems, NAAL was proposed and implemented in this paper. NAAL provides functions necessary for IoT device control and neuromorphic architecture abstraction and inference model operation in various heterogeneous IoT device environments based on common APIs of NAAL. NAAL has the advantage of enabling additional support for new heterogeneous IoT devices and neuromorphic architectures and computing devices in the future.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.18-24
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• 2020

Recently, research on Society 5.0 has been actively carried out in Japan. The Society 5.0 is used in various areas using IoT sensors. This paper proposes a privacy approach model of multiple approaches to IoT users based on Society 5.0. The proposed model used multiple methods of synchronizing important information of IoT devices with one another in the virtual environment. The proposed model improved the efficiency of IoT information by accumulating the weight of IoT information on a probability-based basis. Further, it improves the accuracy of IoT information by segmenting it so that attribute information is linked to IoT information. As a result of the performance evaluation, the efficiency of IoT devices has improved by an average of 5.6 percent, depending on the number of IoT devices and the number of IoT hub devices. Accuracy has improved by an average of 15.9% depending on information collection and processing.