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Customer demand for electricity supply is vastly increasing due to urbanization and changing needs. Thus electrical utilities need to accurately determine load profiles for different sectors of the supply area, so that new customers can be seamlessly added. To obtain such information a customer connectivity model needs to be developed and implemented such that historical customer data from various...
The study of map symbols is one of the basic problems of cartography. Map symbols and map symbol library is also one of the core issues of geographic information systems and mapping software. The varieties of GIS systems and mapping software have unusual map symbol definitions, different depicting ways, and different application purposes and approaches. It is a serious problem to share map symbol...
In this paper, taking GIS desktop software as a starting point, the overall framework of the GIS smart client based on SOA (Service-oriented architecture) is propounded. The GIS smart client is loosely coupled, extensible, easy to realize modularization and easy for maintenance. Existing as a component container, on the premise of with function to manage geo-spatial data to a certain extent, the GIS...
The current implementations of cloud environment do not have suitable mechanism through which services can be managed to make use of cloud resources. The services in these environments can passively serve users' request only. If a service receives more requests than it can handle in a certain time period, it is subject to malfunctioning. This paper proposes a new approach to service replications that...
Based on WCF technology study, the 3D geographic information services was realized, using the character of WCF of supporting various distributed technologies. The distributed 3D geographic information system which is applicable in different networks and applications was built.
This paper reviews and compares progress in geographic information standardization. The result shows that both international and national standardization organizations are all focusing more and more on standardization of geographic information services, instead of geographic data. Based on the comparison analysis, this paper considers and suggests countermeasures on working mechanism and theoretical...
In order to break the bulwark and eliminate the information isolated island in UGIS, the architecture of SOA-oriented urban spatial information platform is proposed. The SOA-oriented urban spatial information management and service architecture is designed and the key technologies are discussed in detail. The architecture is based on service and adopts the convenient and widely used SOA. It contains...
GIS is widely used in many fields and various industries, which makes sharing and interoperability of geographic information become urgent requirements of all departments in network environment. In the application field of water environment, some analysis systems of water environment have appeared. However, these systems often work in single computer, and their characters of common sharing are poor,...
In this paper, we describe the implementation of a flood monitoring system based on grid computing technologies. The architecture of flood monitoring grid is given, and the design and implementation of the key services are described.
Grid-computing technology is used to solve large or complex computational problems on distributed computational resources belonging to multiple organizations regardless of their geographical locations. In this paper, we introduce an integration of the SAFORAH geospatial data grid, provided by the Canadian Forest Service, and the computational grids, offered by the University of Victoria and National...
Sensor networks can be used to sense, collect and process information of monitored objects and transfer the information to users. It has been applied in many domains, such as military, environment observation, calamity forecasting, geo-spatial explore. A sensor Web refers to web accessible sensor networks and archived sensor data that can be discovered and accessed using standard protocols and application...
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