• International journal of advanced smart convergence
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• 제8권3호
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• pp.184-192
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• 2019

The existing digital signage systems inside the elevators are a lack of tailored contents appropriate to the space and environment inside or outside the elevators. Also, they almost impossible to flexibly respond to various contents disclosure according to the demand of the consumers or the elevator markets. Therefore we design and implement an IoT(Internet of Things)-based smart digital signage system for the safety of elevator passengers.. In order to provide IoT-based information to the smart digital signage within the elevator, we propose an IoT system as a set-top box with gyroscope sensor, acceleration sensor, RFID(Radio-Frequency Identification), fine dust sensor, etc., which processes various data collected by the sensors and provides the elevator passengers with various tailored contents such as elevator driving information, environmental information inside and outside the elevator, and disaster information in addition to simple advertisement information. The proposed IoT system is a set-top box that operates the smart digital signage and has an independent information control processor based on the IoT sensors that do not depend on the elevator control system. For the proposed smart digital signage, it supports an operating system that is independent of the elevator driving service as well as the media service. So the smart signage system has a characteristic that it does not depend on the elevator control system since it is a stand-along IoT-based information control system. With the proposed system providing intuitive content for the surge, steep descent, and radical movements of an elevator due to an emergency situation, the elevator passengers should be able to recognize the situation quickly and respond accordingly. In the near future, the proposed system will expand the market of digital signage applied in conjunction with the development of contents in the disaster, safety and environment fields, and expect expected to revitalize related industries associated with signage.

• International Journal of Precision Engineering and Manufacturing
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• 제6권3호
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• pp.29-36
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• 2005

With the rapid growth of the Internet, the Internet-based robot has been realized by connecting off-line robot to the Internet. However, because the Internet is often irregular and unreliable, the varying time delay in data transmission is a significant problem for the construction of the Internet-based robot system. Thus, this paper is concerned with the development of an Internet-based robot system, which is insensitive to the Internet time delay. For this purpose, the PPS (Position Prediction Simulator) is suggested and implemented on the system. The PPS consists of two parts : the robot position prediction part and the projective virtual scene part. In the robot position prediction part, the robot position is predicted for more accurate operation of the mobile robot, based on the time at which the user's command reaches the robot system. The projective virtual scene part shows the 3D visual information of a remote site, which is obtained through image processing and position prediction. For the verification of this proposed PPS, the robot was moved to follow the planned path under the various network traffic conditions. The simulation and experimental results showed that the path error of the robot motion could be reduced using the developed PPS.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2002년도 봄 학술발표회 논문집
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• pp.635-642
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• 2002

In this study, a new internet-based methodology to manage the data acquired during the construction and maintenance of structure is study A new internet-based monitoring system to obtain and to manage the measured information regardless of physical location of each user was developed. This method provided an enhanced integration methodology for construction management by implementing common internet or intranet platform

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권2호
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• pp.424-444
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• 2022

In hospitals and pharmacies, the distribution of medicines is an important part. Any mistakes, misses, fake medicines and expired medicines can cause medical accidents. With the widespread application of the Internet of Things technology (IoT), traditional drug distribution methods need to be upgraded. This article proposes a drug distribution management scheme based on the Internet of Things technology. In the production of drugs, a flexible RFID tag was printed on the packaging box, which stored a series of information such as drug name, dosage, raw materials, efficacy, production date, expiration date, and manufacturer. The use of a drug distribution management system combined with RFID readers can identify drug information and effectively prevent the occurrence of erroneous, missed, counterfeit, and expired drugs. It can also improve management efficiency, reduce management costs, and control management risks. Through the circuit design and software system development, the test results show that this solution is effective and feasible, the proposed method can achieve the expected results.

• 정보처리학회논문지C
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• 제12C권2호
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• pp.191-200
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• 2005

컴퓨터와 인터넷의 발달로 컴퓨터 사용자들은 유용한 정보를 쉽게 얻을 수 있게 되었다. 그러나 동시에, 시스템 불법 침입과 서비스 거부 공격에 의한 피해는 심각한 수준에 이르렀다. 특히 인터넷 웜을 통한 서비스 거부 공격은 컴퓨터와 네트워크 서비스를 무력화 시킬 수 있기 때문에 이에 대한 대처방안이 시급하다 할 수 있다. 지금까지 많은 침입 탐지 시스템들이 탐지룰을 기반으로 공격을 탐지해왔지만, 새롭게 등장하는 인터넷 월을 탐지하는데 한계가 있다. 본 논문에서는 인터넷 웜이 여러 호스트들을 감염시키기 위해 네트워크 스캔 작업을 한다는 점에 착안하여, 스캔 기반의 인터넷 웜 공격을 효과적으로 탐지하기 위한 침입 탐지 및 탐지룰 생성 시스템을 제안한다. 제안된 시스템은 탐지룰을 기반으로 인터넷 월 공격을 탐지하며, 탐지룰에 존재하지 않는 인터넷 웜에 의한 트래픽이 유입될 경우, 수집된 트래픽 정보를 통해 새로운 탐지룰을 생성하기 때문에 신종 인터넷 웜에 신속히 대응할 수 있다. 그리고 필요할 때만 패킷 데이터를 수집하기 때문에 시스템 부하와 디스크 사용량을 줄일 수 있다.

• 한국공간정보시스템학회 논문지
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• 제5권1호
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• pp.75-81
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• 2003

인터넷을 기반으로 하는 정보방송 서비스가 널리 확대되고 있으나, 인터넷 프로토콜 고유의 한계로 인해 사용상에 제한이 있다. 본 논문에서는 기지국에 IP 주소변환 기능을 도입한 억세스망에서의 인터넷방송 기술과 이를 이용한 위치기반서비스가 제안되었다. 수신기에 IP 주소가 할당되지 않아도 되며, 사전에 서버의 주소를 몰라도 정보를 수신할 수 있으며, 서버의 부하나 통신망 트래픽이 대폭 감소되는 장점이 있다.

• 한국통신학회논문지
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• 제37권7B호
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• pp.550-564
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• 2012

In this work we propose a new pricing scheme for the wireless Internet services over WiMAX system. First, let us review the characteristics of wireless network which is based on multi-hop relay WiMAX system. Next, we show why usage-based and QoS-aware pricing scheme is needed in the wireless Internet. After that, we propose a theoretical model for the price of multimedia services called a DAP (DiffServ-aware pricing) scheme for the WiMAX multimedia network which takes into account the consumed radio resource of WiMAX system as well as the supported QoS in the IP backbone network. Finally, we present explicit formulae for the packet price, price of consumed radio resource, and price of consumed bytes.

• 한국컴퓨터정보학회논문지
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• 제18권5호
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• pp.103-111
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• 2013

본 논문은 국내외 중소형 국제물류기업들 간의 화물 운송을 위한 화물 및 공간에 대한 등록과 검색, 공개입찰과 협상, 계약, 지급과 안전보장, 그리고 운송 등에 관해 인터넷, 무선 통신 수단, 또는 스마트폰 등으로 접속 및 중개할 차별화된 IGILMS(internet-based global integrated logistics management system)의 구조를 제시한다. 그리고 IGILMS를 위한 B2B 온라인 시장의 고객 맞춤형 서비스 제공 모형과 이행 단계의 구조 및 통제에 대해 설명하고, 인터넷 기반의 글로벌 물류 관리 시스템을 위한 IGILMS의 기술적인 구성을 제공한다. 또한 시뮬레이션을 통하여 제안한 시스템의 효율성을 검증한다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.134-138
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• 2005

There are several application have been developed on internet-based speech recognition. Internet-based speech recognition is a distributed application and there were various techniques and methods have been using for that purposed. Currently, client-server paradigm was one of the popular technique that been using for client-server communication in web application. However, there is a new paradigm with the same purpose: mobile agent technology. Mobile agent technology has several advantages working on distributed internet-based system. This paper presents, applying mobile agent technology in internet-based speech recognition which based on client-server processing architecture.

• 한국정밀공학회지
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• 제20권5호
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• pp.108-115
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• 2003

This paper is concerned with the development of Internet-based robot system controlled on the remote site via the Internet. In order to draw the public attention into this exciting system, we built the simple system by which a robot is moved in response to answer for the given OX quizzes. As the primary research fer Internet-based robot control, this study focuses on the development of user-friendly interface by which a beginner achieves information for a robot on the remote site from the 3D virtual simulator and the real camera image. for the compensation of Internet time delay, position prediction simulator is implemented in the user interface.