• 한국멀티미디어학회논문지
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• 제20권5호
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• pp.808-826
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• 2017

Most of conventional DSS's(Digital Signage Systems) have been built based on LAMP framework. Recent researches have shown that MEAN or MERN stack framework is simpler, more flexible, faster and more suitable for web-based application than LAMP stack framework. In this paper, we propose a design and implementation of MEARN (ME(A+R)N) stack-based real-time digital signage system, MR-DSS, which supports handing real-time tasks like urgent/instant messaging, system status monitoring and so on, efficiently in addition to conventional digital signage CMS service tasks. MR-DSCMS, CMS of MR-DSS, is designed to provide most of its normal services by REST APIs and real-time services like urgent/instant messaging by Socket.IO base under MEARN stack environment. In addition to architecture description of components composing MR-DSS, design and implementation issues are clarified in more detail. Through experimental testing, it is shown that 1) MR-DSS works functionally well, 2) the networking load performance of MR-DSCMS's REST APIs is better compared to a well-known open source Xibo CMS, and 3) real-time messaging via Socket.IO works much faster than REST APIs.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제29권1호
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• pp.21-28
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• 2023

Purpose: Evidence-based design is the process of making design decisions based on reliable research to achieve the best results, so it is important to accumulate reliable evidence through research. Therefore, the purpose of this study is to present new evidence by applying the evidence-based design process to improve the digital signage for each room spaces in hospitals and verifying its effectiveness. Method: Through the 8-step process of evidence-based design, improved digital signage for each room spaces are installed. It conducted surveys and statistical analysis to prove hypotheses by linking design and research. Results: The hypotheses established in the study are: 1) improvement in the readability of digital signage is correlated with patient satisfaction; 2) Improving the intuitiveness of digital signage correlates with patient satisfaction; 3) Improving the sufficiency of digital signage correlates with patient satisfaction. As a result of satisfaction analysis and correlation analysis, all of the above hypotheses were proven. Implications: Although the hospital sign system is the element that patients rely on most intuitively in the long journey of reception, waiting, examination, and treatment, there is insufficient evidence to refer to or apply it when designing. It is necessary to expand future research to expand the evidence that can be applied to hospital sign design.

• 한국IT서비스학회지
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• 제14권4호
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• pp.257-267
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• 2015

We propose a vehicle-mounted, location-aware mobile digital signage system that can be used for public transportation through mobile communication. This paper proposes the installations of the LED display panels at the backside of the bus., which display traffic information to cars behind the bus. Information to be displayed would include, but is not limited to, road information, public commercials and private commercials. We propose the system architecture and further implement the prototype of mobile digital signage system for demonstration. The system is based on the Client-Server system. Each bus has a client terminal which detects the current location by a GPS receiver and sends its location information to the server using mobile communication function. The terminal device receives advertisements and traffic information from the server and displays it to the large LCD or LED panel installed at the inside and outside of the bus. We use the Android smartphone as a client system, which inherently equipped with GPS and mobile communication function. GPS detects the location of bus and reports its geo-location data to the traffic information center server via a wireless communication network. On the server side, we developed a specially designed control server, where it communicates with the other traffic information center and updates and manages the databases contents being displayed by each position. The server contains location dependent variable information and returns selected information back to the vehicle in real time. Spatial database is used to process location based data. Server system periodically receives the real time traffic information from the road information center database. And it process the information by bus location and bus line number. In this paper, we propose a mobile digital signage service and explain the system implementation of this service.

• International Journal of Internet, Broadcasting and Communication
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• 제12권3호
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• pp.171-176
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• 2020

This paper presents an implementation of a gesture recognition platform that can be used in a factory workplaces. The platform consists of signages that display worker's job orders and a control center that is used to manage work orders for factory workers. Each worker does not need to bring work order documents and can browse the assigned work orders on the signage at his/her workplace. The contents of signage can be controlled by worker's hand and arm gestures. Gestures are extracted from body movement tracked by 3D depth camera and converted to the commandsthat control displayed content of the signage. Using the control center, the factory manager can assign tasks to each worker, upload work order documents to the system, and see each worker's progress. The implementation has been applied experimentally to a machining factory workplace. This flatform provides convenience for factory workers when they are working at workplaces, improves security of techincal documents, but can also be used to build smart factories.

• 전기학회논문지P
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• 제65권4호
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• pp.321-325
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• 2016

The purpose of this study was to develop a system capable of operating a digital signage system at a low cost by utilizing existing equipment (TV, monitors, tablet PC, etc.). In particular, by developing an easy way to install the store's small business owners it can operate their small business installing digital signage in the store in addition to a public place. This easily exposed by a targeted advertising and local advertising and information of each store customers can maximize the advertising effect.

• 산업융합연구
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• 제19권6호
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• pp.49-57
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• 2021

디지털 사이니지와 다면 영상 시스템은 강한 몰입감으로 스토리와 정보를 전달하는 제4의 미디어로 사용되고 있다. 대형 디지털 사이니지에서 상영되는 콘텐츠는 주로 실사 영상보다는 컴퓨터 그래픽을 이용한 영상으로 제작되고 있다. 그 이유 중 하나는 콘텐츠 제작을 위해 촬영된 영상을 사용하려면 제작범위가 극히 제한적이고 고해상도 실사 촬영의 한계로 크고 넓게 구성된 디지털 사이니지 화면에서 고화질 재현에 무리가 많기 때문이다. 반면 영화 상영관 중앙에 있는 스크린과 좌, 우측 벽면을 스크린으로 활용한 Screen X와 Escape는 디지털 시네마용 카메라 3대로 실사 촬영하여 스티칭 작업 후 다면 영상 시스템을 갖춘 극장에서 실감 영상으로 상영되는데 관객들에게 많은 실감 체험을 주고 있다. 이번 연구는 Screen X의 다면 영상 촬영 제작기술과 크로마키 기법을 이용하여 고해상도로 촬영된 영상을 디지털 사이니지에서 화질 열화 없이 상영할 수 있을 것이다.

• Journal of Information Processing Systems
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• 제17권3호
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• pp.599-614
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• 2021

This paper proposes a digital signage system based on an intelligent recommendation model. The proposed system consists of a server and an edge. The server manages the data, learns the advertisement recommendation model, and uses the trained advertisement recommendation model to determine the advertisements to be promoted in real time. The advertisement recommendation model provides predictions for various products and probabilities. The purchase index between the product and weather data was extracted and reflected using correlation analysis to improve the accuracy of predicting the probability of purchasing a product. First, the user information and product information are input to a deep neural network as a vector through an embedding process. With this information, the product candidate group generation model reduces the product candidates that can be purchased by a certain user. The advertisement recommendation model uses a wide and deep recommendation model to derive the recommendation list by predicting the probability of purchase for the selected products. Finally, the most suitable advertisements are selected using the predicted probability of purchase for all the users within the advertisement range. The proposed system does not communicate with the server. Therefore, it determines the advertisements using a model trained at the edge. It can also be applied to digital signage that requires immediate response from several users.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 추계학술발표대회
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• pp.1435-1438
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• 2013

본 연구는 현재 Digital Signage 시장에 나와 있는 다양한 Digital Signage(미디어파사드, DID, 미디어폴, Kiosk, 전광판, 경관조명 등)에 다양한 콘텐츠(동영상/정지영상/플래시/PPT 등)를 원하는 스케줄에 따라 하나의 시스템으로 통합해서 Display 해 주고 관제할 수 있는 통합 영상관제시스템에 관한 연구내용을 소개한다.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.11-17
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• 2020

This paper proposed the design of a new window signage system architecture, which utilized a window of a building, with attached LED for visible light communication. In this paper, the proposed method using the LED strip to transmit light data and receive the data through a HMD with a smart device camera. The LED strip attached to the existing building window, as a part of semi-transparent signage. Semi-transparent signage based on a controllable LED strip-modules and attached to the window used to provide entertainment contents and the information service to people through optical camera communication (OCC) as well. Also, this work suggests using the camera supplied Head Mounted Device (HMD) as an OCC receiver. The LED attached window signage system structure described in this paper can be utilized in various buildings infrastructure like house, shopping areas, industrial building, etc.

• 한국산업정보학회논문지
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• 제17권2호
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• pp.33-43
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• 2012

디지털 사이니지란 멀티미디어 기반의 정보와 광고를 소비자에게 전달하는 스마트 전자 디스플레이 시스템을 일컫는다. 대부분의 디지털 사이니지는 일련의 멀티미디어 콘텐츠를 원격 네트워크 스토리지로부터 로컬 디스크로 다운로드 한 후에 재생을 시작한다. 하지만 모든 콘텐츠를 다운로드 한 후 재생할 경우에 긴 초기 지연시간을 초래한다. 본 논문에서는 디지털 사이니지에서 이러한 초기 지연시간 문제를 정의하고, 주어진 네트워크 대역폭 및 멀티미디어 콘텐츠의 품질과 크기에 따라서 최소한으로 필요한 초기 지연시간을 계산하는 방법을 제시한다. 또한, 디지털 사이니지 상의 다양한 멀티미디어 콘텐츠들을 이용하여 본 제안 기법의 성능을 분석한다.