Method and device for constructing context-aware middleware facing to pervasive environment

Abstract

The invention provides a method and device for a constructing context-aware middleware facing to a pervasive environment. The device comprises a context acquisition module, a context processing module and a context access module. The method comprises the following steps of: acquiring context information and context event information in a running environment of software; modeling the received context information so as to acquire a context information model; realizing the gathering of context information and the management of context events on the basis of a rule-based reasoning and event-driven information processing mechanism; and providing a unified access interface for users, realizing a context information complementary access mode combining a synchronous access mode with an asynchronous inform access mode and providing a convenient context information access mechanism for an upper-layer application program. According to the method and device disclosed by the invention, the modeling can be realized according to the actually-received context information and the model is updated according to the context information, so that the model is adaptive to the open and varied characteristics of the pervasive environment.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a context-aware middleware construction method and device for a pervasive environment. Background technique [0002] With the distributed, networked and submerged computing, the operating environment of software systems is becoming more and more complex, which brings new challenges to software development. In an open and changeable pervasive environment, how a software system can acquire effective context information accurately and in real time to assist its decision-making and then complete its adaptive adjustment has always been an important issue in this field. topic. [0003] Context-aware middleware is an effective way to solve this problem. The existing research mainly involves the following three aspects: how to model context information; how to obtain context information accurately and in real time; how to provide efficient and convenient access to context info...

AI Technical Summary

Problems solved by technology

[0006] Accurate and real-time acquisition of context information is the premise of context awareness. The current common context acquisition methods are often closely combined with specific application requirements, and also vary with different application types. State and other characteristics make it difficult to form a unified specification for the development of perceptrons, which greatly increases the difficulty of software reuse

Images