Abstract
Abstract Submitted:November 3, 2015 1 st Revision:December 8, 2015 Accepted:December 12, 2015* 중소기업청 2012년 산학연공동기술개발사업 “차량 설치형 도로교통 정보안내 전광판시스템 개발”으로 연구되었음.** 한국외국어대학교 정보통신공학과 교수*** 한국외국어대학교 컴퓨터공학과 교수 We propose a vehicle-mounted, location-aware mobile digital sig nage system that can be used for public transpor-tation through mobile communication. This paper proposes the in stallations of the LED display panels at the backside of the bus., which display traffic information to cars behind t he 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 dete cts the current location by a GPS receiver and sends its location information to the server using mobile communicati on 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 rep orts its geo-location data to the traffic information center server via a wireless communication network. On the serv er side, we developed a specially designed control server, where it communicates with the other traffic informatio n 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.
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