• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.8 no.7
• /
• pp.1588-1596
• /
• 2004

Recently, many WMS(Web Mapping Services) and POI(Point of Interest) service on to be in service on the Internet using Web CIS(Geographic Information System) as information Technology and computer HW are evolved faster in its speed, network bandwidth and features. The Web GIS is, however, limited and constrained on the specification of its system configuration, the service class provided and the presentation methodology of a map. As the mobile Internet becomes popular in mobile service, Web GIS service on mobile environment is strongly required and to be provided by LBS(Location Based Service) on a mobile client such as PDA with location information of the user. In this paper, we made an effort to design and implement a GIS computing environment by thin client for mobile web mapping service. For implementing the thin client GIS computing environment, we were using NGII's(National Geographic Information Institute's) DXF map, representing the map by SVG(Scalable Vector Graphics) recommended by OGC(OpenGis Consortium), and adapting standard XML web service to provide the thin client GIS service on PDA by applying the location information of the user in realtime with GPS on mobile environment.

• Journal of Korea Society of Industrial Information Systems
• /
• v.15 no.5
• /
• pp.125-135
• /
• 2010

Mobile office is becoming common as advances in mobile devices such as PDAs, Smart-phones, or wireless Internet. In this paper, we construct a mobile office environment on a geotechnical information system(GIS). Especially, web services and XML technology combined with SOA (service oriented services) are adopted for various types of mobile devices and services in a minimum cost. Web service and XML can provide an excellent SW reusability, extensibility, and interoperability even for heterogeneous distributed systems. Applications can exploit web services by just knowing server's address. Prototype system integrates a client in Visual Basic.Net and server in Java via the web services and XML data exchange. We verify effectiveness of the approach through the implementation of prototype system.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2017.07a
• /
• pp.60-61
• /
• 2017

모바일 게임 시장은 매년 시장 규모가 확대되고 있으며, 대중의 관심 또한 꾸준히 높아지고 있다. 모바일 게임은 대체로 조작이 간단하고 장소에 따른 제약이 없기 때문에 접근하기 쉽다는 특징을 가지고 있으며 이 때문에 앞으로도 모바일 게임 시장의 전망은 밝다고 할 수 있다. 본 논문에서는 모바일 게임에서 가장 성공한 장르 중 하나인 소셜 네트워크 게임 중에서도 RTS 장르의 게임을 기획, 설계 구현한 것에 대해 다루었다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.11a
• /
• pp.156-159
• /
• 2012

최근 모바일 기기의 발달로 모바일 환경에서도 예약 서비스를 이용할 수 있다. 모바일 예약 시스템은 서버와 사용자간에 예약 정보 데이터를 일관성 있게 유지하여 사용자에게 실시간 예약 현황을 제공해야 한다. 현재 모바일 예약 시스템은 어플리케이션을 기반으로 서비스를 제공하고 있고, 웹 서비스와 같이 요청 대 응답 방식으로만 데이터를 처리하기 때문에 사용자가 요청하지 않으면 변화된 데이터를 알 수 없다는 문제점이 있다. 이는 데이터 일관성의 문제로 연결되어 사용자에게 실시간으로 예약 현황을 제공하지 못하게 된다. 이러한 문제점을 해결하기 위해 본 논문에서는 모바일 예약 시스템에서 스트리밍 방식을 개선한 Push를 통해 데이터 일관성을 유지하는 동기화 메커니즘을 제안한다.

• Convergence Security Journal
• /
• v.7 no.3
• /
• pp.87-93
• /
• 2007

We propose a mobile point-of-sale system, which consists of only mobile information terminals and personal computers. The proposed system provides most of functionalities related with resource planning, adminstration and management, provided by medium-scale or large-scale POS systems, with additional functionalities, such as automatic information gathering and management through mobile interconnection, while eliminating the necessity of additional special-purpose devices, such as bar-code systems. The proposed system transmits order information through wireless and wired communication lines, thus allowing real-time sharing of order information among diverse information devices, such as mobile order receiving terminals, main server within stores, monitors and printers located in production lines. Also, the system is able to transfer such detail information produced within stores in real-time to the enterprise-level accounting, sales, logistics, personnel management system, which facilitate enterprise-wide management and administrative decision-making. No additional programs are required for mobile terminals. Order information received by such terminals are entered into databases through web server of main server and that information is again transferred to main server and production line printers. The proposed system can handle all the point-of-sale information and can provide almost of the POS functionalities by simply utilizing wireless internet, personal computers, and mobile terminals without installing specific-purpose peripheral devices. The proposed system can be widely applied to the small-scale stores and will contribute in reducing construction and maintenance cost required for point-of-sale management.

• The KIPS Transactions:PartD
• /
• v.11D no.1
• /
• pp.1-10
• /
• 2004

According to the evolution of the Internet and wireless mobile communication technology, techniques for mobile databases and wireless web services are issued for them. Recently, these changes of geographic application environment increase the needs for development of new GIS database system for the web services and embedded system. In this paper, we proposed a Jana-based web database systems that can be used in the web-based GIS and mobile databases. This proposed system has been implemented using the Java to be displayed easily into the portable computing devices and Java-based web application servers and using OpenGIS for web data interoperability. Also, it can efficiently process web-based spatial queries by developing a spatial query processor including schema manager and a spatial object storage module.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2016.10a
• /
• pp.164-165
• /
• 2016

최근 리소스의 규모를 자유롭게 변경할 수 있는 클라우드 컴퓨팅이 널리 쓰이고 있다. 본 논문에서는 클라우드 컴퓨팅을 이용하여 스마트폰이나 테블릿상에서 그림, 문자입력을 공유 할 수 있는 화이트보드 시스템의 설계 및 구현을 제시한다. 본 시스템의 사용자가 안드로이드 스마트폰 상의 화이트보드에서 사용자가 그림이나 문자를 그리게 되면 그 데이터는 AWS(Amazon Web Service) 클라우드 컴퓨팅서버를 통해 모든 클라이언트에게 브로드캐스트하며 그 후 클라이언트들은 받은 데이터를 자신의 스마트폰 디스플레이에 출력한다. 본 시스템은 웹서비스만으로 서버를 늘릴 수 있기 때문에 손쉽게 서버증축이 가능하다.

• Journal of Digital Convergence
• /
• v.15 no.1
• /
• pp.217-225
• /
• 2017

A study proposes possibility of new IoT measuring system blended with a smart device. The research serves the best cultivation information for domestic fruit's enhancement of competitive power and also develops a glucose measuring system by which people manage fructose with the mobile device. The mobile glucose tester is designed with a form of accessory which has high portability and utility because the product connects an existing analogy refractometer to the smart phone. You can check the glucose rates data by commodity, region, and season then save measurement results with server in real time for an exclusive application. It's possible to serve the glucose map, graph, and data list through the web service. This is very useful to do collect, analyze, and process the glucose data.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.16 no.4
• /
• pp.141-152
• /
• 2013

The applications and concerned technologies of cloud computing services, one of major trends in the information communication technology, are widely progressing and advancing. OpenStack, one of open source cloud computing platforms, is comprised of several service components; using these, it can be possible to build public or private cloud computing service for a given target application. In this study, a remote sensing image analysis processing service on cloud computing environment has designed and implemented as an operational test application in the private cloud computing environment based on OpenStack. The implemented service is divided into instance server, web service, and mobile app. A instance server provides remote sensing image processing and database functions, and the web service works for storage and management of remote sensing image from user sides. The mobile app provides functions for remote sensing images visualization and some requests.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.07a
• /
• pp.257-258
• /
• 2023

서버의 정보를 관리하기 위해서 직접 telnet, SSH 또는 서버 관리 프로그램을 통해 접근해야 한다. 이러한 불편함을 해소하기 위해 웹사이트에서 서버의 정보를 확인할 수 있는 시스템을 구현하였다. 이를 통해 사용자는 웹사이트에서 서버의 폴더 정보를 확인하고 관리할 수 있다. 또한 기존의 이기종간의 서버 관리의 불편함을 개선하며, PC와 모바일에서 모두 서버 정보를 확인할 수 있어 편의성을 높였다.