• Information and Communications Magazine
• /
• v.34 no.2
• /
• pp.12-19
• /
• 2017

The LED technology advancement introduce cuttingedge technology on Internet of Things (IoT) to connect the physical world to the digital realm, using digital smart lighting infrastructure called Internet of light (IoL). This paper proposes an Integrated IoT agent on networked smart LED lighting controller called IoL Filed Gateway using lighting infrastructure in which a lighting system that can connect to a network and can be monitored and controlled from a centralized system or via the cloud. The IoL Field Gateway defines new world of smart connected intelligence, lighting can become an integral and responsive part of everyday human life environments. The proposed connected lighting gateway uses the concept of multi-hop ad hoc network using visible light communication (VLC) with RF wireless technologies and Wired PLC (Power Line Communication). This connectivity and intelligence integrated into LED-based luminaires form the backbone of smart buildings and cities and make the Internet of Things (IoT) vision feasible and enables the lighting administrator can control numerous lightings easily and visitors can get visual information from the lightings with their smart devices. The proposed IoL gateway design is emulated on Arduino based HW platform with VLC, RF, and PLC connectivity and evaluated with four sensor interface.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.11 no.5
• /
• pp.485-490
• /
• 2016

The era of IoT in which all objects are intelligent and are connected to the internet has been started. In order to establish and activate an IoT eco system, open IoT services platform is very important. In this paper, we develop an open IoT services platform and verified the function by building a testbed. Our platform based on the open source hardware and commercial cloud services such as AWS which is a component of an open service IoT platform.

• Journal of Korea Game Society
• /
• v.17 no.6
• /
• pp.29-38
• /
• 2017

Predicting the user's reaction to the game at the stage of developing the game is important because it is related to the popularity of the game. In this paper, we propose a system that can collect and analyze game user's biometric information in a non-invasive way. To this end, we developed a mouse with skin conductance, pressure, gyroscope, and accelerometer sensor using Arduino. In order to verify the usefulness of this system, the subject was experimented with playing the first person shooter game with this mouse. We analyzed the gameplay videos recorded during Blizzard's 'OverWatch' and the bio-information collected from various sensors in the mouse.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.8 no.3
• /
• pp.239-242
• /
• 2015

In this paper, we propose a walking assisting system for blind people using Android smartphone and Arduino board. In our proposed system, we use an Android smartphone case and an external ultrasonic sensor to detect the obstacles ahead. In this manner, blind people is able to aware unexpected objects by smartphone speakers or vibration functionality. In addition, the walking assisting system is also designed a notice system which will be triggered by built-in smartphone camera flash when blind people walk in some darkness place. The experimental results from real experiments on blind people have demonstrated the applicability of our walking assisting system, when it not only efficiently helps blind people avoid obstacles ahead but also possible traffic collisions in darkness condition.

• Journal of Practical Engineering Education
• /
• v.9 no.2
• /
• pp.139-148
• /
• 2017

As the connection between objects and computers becomes easier, learning using physical computing is presented as a good alternative to solve the problems raised in programming education for beginners. In this paper, we propose a training method that can be applied to basic programming courses for beginners. To do this, we will proceed with a basic programming lecture based on the physical computing method. Currently, physical computing courses focus on various input sensor connection methods and output device control. However, the content of programming education using physical computing materials is lacking. In this paper, we proposed and tested a teaching method that is used in programming education by using low cost materials used in physical computing.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.13 no.6
• /
• pp.1275-1280
• /
• 2018

We made a smartphone interlocking location tracking streetlight and remote display device to compensate the defect of real time identifiable CCTV streetlights and child safety notification applications. It controls brightness of LED by detecting the surrounding brightness and objects with ultrasonic sensor and illuminance senor. The CCTV receives the location of smartphone by Bluetooth and takes the target of the location. It realizes a wireless transmission system that the video is upload to the tablet PC via WiFi.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2019.01a
• /
• pp.129-131
• /
• 2019

본 논문에서는 다양한 아두이노 무선센서 모듈과 Raspberry Pi, 웹서버를 이용한 IOT 기반 환경정보 수집 시스템을 구현하고, 상품추천시스템을 제안한다. 이 시스템은 사용자가 주변 환경의 데이터를 정확하게 확인하고 활용할 수 있도록 한다. 상품추천 시스템에서는 상점 외부에 부착된 다양한 무선센서 모듈들을 이용해 상점 주변의 환경데이터를 수집하고, 무선통신을 통해 Raspberry Pi로 데이터를 전송한다. 전송된 데이터는 Server로 보내져 Server DB에 저장되고 Server에서 센서값들의 평균값을 계산해 Raspberry Pi로 다시 보내주면 Raspberry Pi에 연결된 모니터를 통해 실시간으로 주변의 데이터와 주변 상황에 맞는 경고 메시지를 보여주고, 이후 필요한 물건을 추천해준다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2019.07a
• /
• pp.153-155
• /
• 2019

본 논문에서는 다양한 아두이노 무선센서 모듈과 Raspberry Pi, 웹서버를 이용한 IOT 기반 환경정보 수집시스템과 기상청 API를 통한 기상정보, 상점 서비스를 매시업하여 상품추천시스템을 구현하였다. 이 시스템은 사용자가 주변 환경의 데이터를 정확하게 확인하고 그에 맞는 상품을 추천받을 수 있도록 한다. 상품추천시스템에서는 상점 외부에 부착된 환경정보 수집시스템에서 측정한 데이터와 기상청 API 데이터를 DB에 저장하고 DB에 저장된 데이터를 이용하여 상황에 맞는 기후화면디자인과 환경정보 데이터를 html로 구성하여 보여준다. Raspverry Pi에 연결된 모니터를 통해 실시간으로 정보를 보여주며 일정 시간 간격으로 관련 상품 광고를 보여주며 필요한 물건을 추천해준다.

• Journal of the Korea Society of Computer and Information
• /
• v.27 no.3
• /
• pp.99-104
• /
• 2022

In this paper, we first intend to develop and introduce a smart laundry drying system for verandas that controls the drying rack by actively responding to climate change. The developed smart laundry drying system receives laundry location information through the app, then detects climate change in real time through data from the Korea Meteorological Administration such as temperature and humidity according to the location information, and automatically controls the laundry on the drying rack in case of rain. It acquires weather information through the Arduino humidity sensor and the Korea Meteorological Administration Open-API, which is used to control the switch bot by the Raspberry Pi. The user interface uses Blynk, and the switch bot controls the laundry. Our proposed system can detect bad weather and automatically control the laundry at a remote location to prevent damage to the laundry.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.22 no.1
• /
• pp.89-94
• /
• 2022

With the recent acceleration of an aging society, the use of wheelchairs is increasing, and wheelchair accidents are also increasing. However, despite this situation, the domestic wheelchair market is lacking in deveolpment of additional functions to prevent wheechair collisions and falls. Therefore, this paper aims to design and implement intelligent smart wheelchairs equipped with functions such as stair wheels and automatic illumination sensor headlights that allow wheelchairs to automatically avoid obstacles, notify interlocking applications when falls are detected. Accordingly, it is expected to increase the convenience of wheelchair users and prevent frequent wheelchair accidents.