• Journal of information and communication convergence engineering
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• 제8권1호
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• pp.64-70
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• 2010

In this paper, we study and develope a special secure Dongle to be adapted in GSM SmartPhone for secure voice communication to the serial 20-pin connector in SmartPhone. We design and implement the Dongle module hardware, firmware, and software including cipher crypto-synchronization and cipher algorithm. Also we study and emulate the SmartPhone GUI software interface including communication software module to the Dongle. Finally, we analyze the performances of crypto-synchronization in some noisy environment and also we test the secure Dongle module.

• 한국정보통신학회논문지
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• 제19권5호
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• pp.1071-1076
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• 2015

본 논문은 장력 센서 시스템으로 구성된 장력펜스에 무선모듈을 설치하고, 경보발생시 데이터를 무선으로 전송하는 알고리즘을 연구한다. 유선 통신 시스템은 높은 정확성과 응답속도를 가지지만 초기 설치비용이 비싸고 연결이 복잡하며 연결선이 유실되는 문제가 발생할 수 있다. 이러한 이유로 Zigbee 무선통신 기술을 이용하여 유선 통신 시스템의 문제점을 보완하고 무선 통신이 가지는 응답속도 지연 및 배터리 문제에 관해 연구하여 이를 적용하고자 한다.

• Journal of information and communication convergence engineering
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• 제18권3호
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• pp.176-182
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• 2020

In this paper, we propose a web-based open artificial intelligence (AI) platform which provides high convenience in input data pre-processing, artificial neural network training, and the configuration of subsequent operations according to inference results. The proposed platform has the advantages of the GUI-based environment which can be easily utilized by a user without complex installation. It consists of a web server implemented with the JavaScript Node.js library and a client running the tensorflow.js library. Using the platform, many users can simultaneously create, modify and run their projects to apply AI functionality into various smart services through an open web interface. With our implementation, we show the operability of the proposed platform. By loading a web page from the server, the client can perform GUI-based operations and display the results performed by three modules: the Input Module, the Learning Module and the Output Module. We also implement two application systems using our platform, called smart cashier and smart door, which demonstrate the platform's practicality.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 추계학술대회 논문집 학회본부 A
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• pp.412-414
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• 1999

The FSK demodulation module is the circuit which detects the data being transmitted from reader by FSK method. It doesn't use the PLL, and has lower power consumption and easier integration than conventional FSK detector using the PLL. So in a smart card, it is suitable to apply. In this study, the FSK demodulation module of the low power smart card is designed and analyzed.

• International Journal of Internet, Broadcasting and Communication
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• 제13권1호
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• pp.90-99
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• 2021

Recently, studies on wearable devices in ubiquitous computing environments have increased and the technology collecting user's activities to provide services has received great attention. We have compared the step counting methods according to sensor molding methods in case of counting steps by using the piezoelectric sensor. We have classified the cases which could result from the course of molding the internal module of a smart shoe as follows: (i) the module is unmolded, (ii) molded but only to the extent that a sensor is fixed or (iii) molded to the extent that a sensor is not moved. Moreover, we have made comparison to verify which algorithm should be used to increase the accuracy of counting steps by the respective cases. Based on the comparison result, we have confirmed that the accuracy of counting steps is higher when using gradient value rather than when using threshold value. In the case of no molding and small molding under the condition of using gradient value, it was turned out to be 100% accuracy for step counting.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2001년도 춘계학술발표회요약집
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• pp.495-495
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• 2001

• 정보통신설비학회논문지
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• 제9권4호
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• pp.147-152
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• 2010

Gas sensor array can be widely applied to atmosphere environment, quality control of food, and medical fields etc. So for the commercialization and popularization of sensor technology, this paper looked into the method to provide users with general purpose smart phone and gas sensor array linked together. The reviewed system can detect unknown gas in the air and inform users using smart phone by arraying 8 kinds of common use gas sensor. This system is composed of the sensor module, communication module between sensor array and smart phone application software. In this paper, this prototype system demonstrate convincingly that the application of Gas sensor array to smart phone is a good outlook.

• 산업기술연구
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• 제34권
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• pp.27-32
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• 2014

Infrared remote controllers are widely used in controlling electronic devices due to its simplicity and convenience. This paper presents a smart phone application unifying any infrared remote controllers. We can select a device from device list menu of the application. Any new device can be added easily by downloading the protocol file of the device from protocol file server. Remote controller protocol files are stored in audio file format, and the file related to a specific menu button is transmitted through the audio jack of smart phones. The protocol file server is a standard file server, and protocol files for various devices are collected by infrared receiver module. For smart phones without infrared facility, a small infrared module translating audio signal to infrared signal is applied.

• 디지털융복합연구
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• 제9권1호
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• pp.137-151
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• 2011

본 논문은 스마트 시민 정당 개념 정립을 위해서 스마트 시민 정당의 정의 및 유형, 스마트 시민 정당의 기능을 살펴보고 CocKpit, PADGET, UBIPOL 등 7개의 스마트 시민 정당 플랫폼 사례를 분석하였다. 본 연구에서 분류하고 분석한 요소기술은 개방형 데이터 정보관리 기술, 소설 컴퓨팅 및 시민참여 관련 기술, 정책 분석 및 정책결정 관련 기술, 보안 및 개인정보보호 관련 기술과 협업정치를 위한 인프라 관리기술로서 스마트 시민 정당 구축을 위해서는 관련 요소기술들의 확보뿐만 아니라 각 기술 간의 연동 및 통합기술이 필요한 것으로 나타났다.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 춘계학술발표대회 논문집
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• pp.98-101
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• 2005

The study applied to a smart technology for every filed in the various countries of world is actively progressing. In the field of construction, a home-network market based on the smart technology is getting to occupy a position as a social issue. and lots of construction companies are taking part in the home-network market to take possession of a market and is investing for a marketing and a technical study in abundance. as a result, the concern for Household Housing of a future and for how to apply the material technology is getting increase. In this study, it has a understanding of such a necessity and suggests the research of the room-space Module to apply the smart technology and a prototype of a house as a building device. and it predicts not only the development of the technology but also about how to change the home-space that we live.