Ontology-based framework model of context perception application platform

A technology of perceptual application and platform framework, applied in the direction of knowledge-based computer systems, computing models, instruments, etc., can solve problems such as shared context support mechanism and model ambiguity

Inactive Publication Date: 2009-06-03
XI AN JIAOTONG UNIV
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Problems solved by technology

It can be seen from the above that Context ToolKit supports the acquisition, interpretation and integration of context, and provides persistent management of context information, supports distr

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  • Ontology-based framework model of context perception application platform

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] see figure 1 , the present invention divides the model into four layers, namely the context information acquisition layer, the context information fusion layer, the context information management layer and the context information application layer.

[0018] The functions of each part of the framework are described in detail below.

[0019] 1. Context Information Acquisition Layer

[0020] This layer mainly collects signals from sensor devices to obtain original context information, and this layer is the provider of context information.

[0021] The context-aware process is a relatively complex process. The system's perception of context begins with the monitoring and acquisition of raw data by context sensors. These contextual sensors are the computing system's interface to the contextual world, and they can be physical, logical, or software. Usua...

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Abstract

An ontology-based framework model of a context perception application platform, which is characterized in that a context information acquisition layer collects signals from a sensor to require original context information; a context information amalgamation layer requires the original context information from the context information acquisition layer and requires inferior context information by preliminary abstracting and processing; a context information management layer requires the inferior context information from the context information amalgamation layer and requires advanced context information by using Ontology and an inference mechanism; and a context application layer unifies each context item and each context abstract status into modeling context objects on the application layer surface and offers an applied view which is attributes and the correlated operations of a group of service levels. The model enables context perception application developers to embedding the service operations in to the application thereof to realize the acquisition and the logical judgment of context or status by utilizing a group of general service operations which are applicable to all the context or status information to screen specific context isomerism.

Description

technical field [0001] The invention relates to a context-aware application platform framework model, in particular to an ontology-based context-aware application platform framework model. Background technique [0002] With the continuous popularization and development of computers and the development of wireless communication technology, various mobile devices have increasingly entered people's lives, and computing has also been integrated into people's lives. Ubiquitous computing is a new change in the computing model after mainframe computing and desktop computing. Its proposal has changed the way people use computing resources and transformed computer-centric computing into human-centered computing. Its concept is to create One of the key theories of a new human-centered information service environment is context awareness, which organically combines various computing resources, information services, and people through context awareness to automatically perform user task...

Claims

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Application Information

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IPC IPC(8): G06F9/44G06N5/00
Inventor 何晖赵季中张纪红齐勇
Owner XI AN JIAOTONG UNIV
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