Research on Key Technology of Land and Resources of Mobile Geographic Information Platform

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Studies in Surveying and Mapping Science (SSMS) Volume 3, 2015

www.as-se.org/ssms

Research on Key Technology of Land and Resources of Mobile Geographic Information Platform YongHua Chen Information and Engineering College, Zhengzhou University, No.100 of Science Road, Zhengzhou, Henan,P.R.CHINA ieyhchen@zzu.edu.cn Abstract For the reason of the office desktop environment restriction, some difficulties in business information acquisition exist in ministry of land and resources’ departments, which lead to great inconvenience for the land survey work, law enforcement and supervision, planning and design, project argumentation etc. The paper completed the design and realization on the land and resources’ mobile geographic information system, which includes business functions of land and location query, outdoor verification, comparison of the maps, data editing etc, by the research on important algorithms and key technologies of the design attribute query based on mobile offline database tile technology and the design of the system structure’s whole frame and so on. The system is an important tool for land management of mobile GIS application, and it is suitable to the land and resources cadastral, law enforcement and planning of various business fields. Keywords Mobile GIS; Android; Offline Database

Introduction At present, land and resource’s traditional business systems are based on indoor office environment.It is unable for them to obtain relevant business information away from the desktop office environment with computer [1-3]. The paper completed the design and realization on land resources mobile office system based on the Android system. By putting data into the tablet computer or large screen phones and other mobile electronic devices, office staff can search information, process business and make decisions at anytime and anywhere. Land resources mobile geographic information system converts the traditional database achievements into encrypted offline package with slicing technique, so that it can be easily loaded into the tablet computer[4]. The thematic databases include satellite imagery data, two tone data, Town Cadastral data, land use planning data to achieve integration, query and analysis of various types of thematic data and handle official business processes on a unified platform. System General Design The system through slicing offline mobile database achieves various functions of Land Resources’ mobile geographic information on a mobile platform. The total system frame is divided into three layers: environment support layer, data support layer, and functional view layer, as shown in Fig. 1. Environment support layer comprises basic platform of Android, ArcGIS for Android environment [5]. The basic platform of Android is the foundation of system operation, it provides the basic Android program running package. The ArcGIS for Android environment provides mobile processing environment, processing mobile environment under GIS platform and provides reading and writing including spatial properties data [6-7], spatial data query positioning operations package; SpatialLite provides the storage management of vector diagram database [8-9] for implementing data management of vector spatial database, attribute database. Data support layer includes spatial database, business database and business logic [10-12]. This layer, the data

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Research on Key Technology of Land and Resources of Mobile Geographic Information Platform by Shirley Wang - Issuu