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MGISP: A GPS-based platform for spatial data acquisition and management AZYAT A.(1), RAISSOUNI N.(2), EL ADIB S.(2), BENARCHID O.(2), ABBOUS A.(2), BEN ACHHAB N.(1), LAHRAOUA M.(1) & CHAHBOUN A.(1) (1)

Remote Sensing & Mobile GIS Research Unit. National School for Applied Sciences of Tangier. University Abdelmalek Essaadi (UAE: www.uae.ma), Tangier, Morocco. [email protected] ; [email protected] (2) Remote Sensing & Mobile GIS, Research Unit. Innovation & Telecoms Engineering, Research Group. National School for Applied Sciences of Tetuan. Tetuan. Morocco. University Abdemalek Essaadi (UAE: www.uae.ma)

As data collection continues to burden databases, and as the Internet continues to grow at a rapid pace, real-time data updating has the potential to be among the GIS project’s most popular solutions. Furthermore, as mobile devices and Mobile Databases (MDB) systems begin to emerge too many applications, millions of fieldworkers will access, read and update the data in the field. The work of the present article has its main objective as the design and the development of the MGISP, a system that can be employed for spatial data acquisition and management with MDB manipulation. MGISP is based on GPS information with other services of map rendering used by fieldworker for GIS solutions. Image georeferencing of university campus in Tangier, concerning this georeferencing, the Trimble Juno SC GPS receiver has been used on purpose to collecting GPS information, is one example of MGISP applications as a use case among various areas. Keywords: Spatial Data, GIS, GPS, MGISP. 1. Introduction. Data whether in analog form or digital form [1] about the phenomena in the real world are contained by an Information System (IS) [2] [3] [4]. This later can be considered as a collection of data and tools for working with those data. Data management system lends to robust data analysis and decision support by providing an environment that links datasets together on common elements. In addition, the governments, private agencies and public society have strong desires to get a standard platform to realize the exchange, share, integration and update for different kinds of geo-spatial databases [5], so that geospatial data can be used efficiently and some new applications can be developed on it. Geospatial databases integration [6] and update is too a key matter in the development of e-government and enterprises IS building among them GIS [7]. Nowadays, geographic information is immensely important in our life; for the industry, government and for the society. To construct a spatial data infrastructure which is based on geodata, it requires gathering a huge amount of spatial data and organizes it in databases. Mobile Geographic Information System (MGIS) technology is becoming an important tool for data collection. It is the extend of Geographic Information System (GIS) from the desk to the field [8]. It is the combination of GIS software, Global Positioning System (GPS), and portable computing devices [9]. MGIS basically changes the way information is collected, used in the field, and shared with the rest of an organization. Fieldworkers are enabled by a MGIS to display information in a digital map, gather information anytime and anywhere, and interact in a direct way with the world around them, hence improving productivity and data accuracy. 2.

MGISP: Mobile Geographic Information System Platform

2.1 Overall architecture The main goal of this research is to respond to the need for spatial data acquisition [10] [11], MDB tools to process geospatial data manipulation used by many services, organizations etc,. The idea focused on the development of a MGISP to provide basic operational, user-friendly data-collecting capabilities in the field to diverse GIS users. MGISP has been thought to be used by field workers for collecting geolocation data and is designed to provide them with a set of services (Fig. 1) for simplifying the spatial data management [12]. The platform was realized with the Microsoft’s technology; the .NET Framework, the Windows Mobile platform for Pocket PCs, and the .NET Compact Framework incorporated in Visual Studio 2008. Technologies utilized for the development of MGISP are Visual C sharp and GPS for acquiring information about location (latitude, longitude) also the SQL Server CE to perform MDB. The mobile user interface component corresponds to the intermediate level; its purpose is to permit the communication between user and the different components, like database and services. The server is maybe used for the data store and data access remotely. This platform requires the Windows mobile for the running on the Pocket PC devices after test using windows mobile Emulator 5 and 6.

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163 Server

Mobile User Interface

Mobile Database

Database GPS Receiver GPS User Map

Images/Maps

Camera Integrated Camera

User

Graphic User Interface

Services

Fig. 1 MGISP overall architecture

2.2 MGISP deployment and test The initial step is to open the MGISP interface [13;14] (Fig. 2) by the user in the field, for doing that one carry out the following components execution (e.g., the graphic user interfaces deployed unto field mobile device’s platform, local mobile database deployed unto the SQL server CE, GPS connected to mobile device or integrated as well as wireless internet connection in place if the storage of data get making remotely). The main user interface serves to communicate with database manipulation interfaces; the database tasks buttons in the main form allow to create a database in My Document file of mobile, also to create a table in the same directory for the same database, add, read, delete data into a table are realized by the user using a specific form for each case. The GPS interface (Fig. 3) designed to display and store the GPS information from GPS receiver.

Fig. 2 MGISP main interface

Fig. 3 GPS interface

Fig.4 Test with Juno SC

In order to test the reliability of MGISP in the field; we have carried out a collecting data campaign. The campaign consists, first, to create a database and a table for University Abdelmalek Essaadi institutions (Fig. 4). This table contains the latitude and the longitude of each institution. This information about positions has been measured by using MGISP installed on Trimble Juno SC PDA, where GPS device is integrated (accuracy of 2-5 m). 3. Conclusions. We have developed MGISP for spatial data acquisition and management; based on GPS information and MDB, its significant role is that in the field, data can be automatically stored in a local database. We have also shown a test that can incorporate these locations into a mobile database using the Juno SC device. In addition, there are many applications we can use MGISP such, image georeferencing by ground control points collection. International Conference of GIS-Users, Taza GIS-Days, May 23-24, 2012 Proceeding Book

164 Acknowledgements This work was supported in part by the Ministry for Higher Education, Management Training and Scientific Research under CSPT Grants for “Integration and application of GIS and GPS on mobile systems” and “Ad-hoc wireless sensor networks for remote sensing algorithm validation” projects. References [18] D. Decker, GIS Data Sources John Wiley & Sons, 2001. [19] P. B. Keenan, "Spatial Decision Support Systems: A coming of age," Control and Cybernetics, vol. 35, no. 1 2006. [20] M. A. John, "Philosophical Foundations of Information Modeling," 2009. [21] K. H, "Alternative curriculum models for integrating computer science and information systems analysis, recommendations, pitfalls, opportunities, accreditations, and trends,", 17 ed 2001, pp. 313-325. [22] T. R. Smith, S. Menon, J. Starr, and J. E. Estes, "Requirement and principles for the implementation and construction of largescale geographic information systems," International Journal of Geographic Information Systems, vol. 1, pp. 13-31, 1987. [23] J. Langton, "Systems approach to change in human geography," Progress in Geography, vol. 4, pp. 123-178, 1972. [24] J. Zhao, X. Li., Y. Zhao, T. Xu, and X. Fu, "Methods and implementation of the geospatial databases integration and update towards e-government," Hangzhou, China: 2005. [25] Y. Lei and L. Hui, "Which One Should be Chosen for the Mobile Geographic Information Service Now, WAP vs. i-mode vs. J2ME?," Mobile Networks and Applications, vol. 11, pp. 901-915, 2006. [26] T. Ming-Hsiang, "Integrating web-based GIS and image processing tools for environmental monitoring and natural resource management," J Geograph Syst : vol. 6, pp. 1-20, 2004. [27] A. Azyat, N. Raissouni, "MGISP: Integrated Framework Based on GPS for Spatial Data Acquisition, Management and Geovisualization," International Journal of Engineering Science and Technology, vol. 3, no. 6, pp. 5366-5380, Jun. 2011. [28] A. Azyat, N. Raissouni, N. Ben Achhab, M. Lahraoua, and A. Chahboun, "Towards a mobile GIS workflow for spatial data management and geo-visualization solutions," Moscow, Russia: 2009. [29] A. Azyat, N. Raissouni, N. Ben Achhab, A. Chahboun, and M. Lahraoua, "Development of a Mobile GIS Platform using Web Services Technologies: Spatial data Management and Geovisualisation," Al khobar - Saudi Arabia: 5th National GIS Symposium, 2010. [30] A. Azyat, N. Raissouni, N. Ben Achhab, A. Chahboun, and M. Lahraoua, "Determination of capacities and weaknesses sites using GIS and Mobile GIS Platform: Tangier Old Medina -Hay Bni Yeder- case study," Algeciras (Cadiz) - Spain: 2011. [31] A. Azyat, N. Raissouni, N. Ben Achhab, A. Chahboun, and M. Lahraoua, "Spatial Data Collection Based on GPS: MGISP-Mobile GIS Platform Development," Algeciras (Cadiz) - Spain: 2011.

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