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With the development of Internet of Things (IoT), large amounts of sensor data, which has the characteristics of multi-source, high speed and large volumes, etc., are generated. Traditional data storage and query approaches cannot handle them properly. To deal with such limitations, a unified storage and query optimization framework, named DeCloud-RealBase, is proposed towards the management of large...
In view of the present situation of data management for intelligent transportation, this paper proposes a multi-source data organization and management method. It uses a combination of centralized and distributed organization mode, with hierarchical model of data management and query mapping conversion mechanism to achieve multi-source traffic data isolated storage and transparent management. Finally,...
With the development of Internet of Things, the timely and fast storage of various types of stream data is becoming the urgent problem to the Internet of Things applications. Facing the arriving stream data continuously, data stream storage system must store the results persistently in a timely way. After analyzing the characteristic of stream data of the transport monitoring system, we propose a...
With the deepen application of GIS, it is hot in research to improve system development speed and business flexibility. In order to adapt to business logic more flexibly, this paper approve a form model oriented on spatial information service, and implements an integrated user-defined form system based on this form model. The form model based on spatial information service is made up of five components,...
With the rapid development of Internet / Intranet and computer technology, geographic information system (GIS) has gone through the development process from a single application environment to the network application environment, web GIS has gradually become a mainstream application of GIS. Compared with the Client / Server structure, web GIS has the characteristics of deployment with convenient,...
Web services are rapidly emerging as a popular standard technology for sharing data and functionality among heterogeneous systems. Service providers and consumers are loosely coupled and distributed across the network, either within an organization or across organizational boundaries, and therefore, performance becomes a major concern in such a distributed environment. Furthermore, XML is widely used...
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