System for automatically creating a context information providing configuration

• US 20030065501A1
• Filed: 09/26/2002
• Published: 04/03/2003
• Est. Priority Date: 09/28/2001
• Status: Active Grant

• Current Assignee: Sony Deutschland GmbH (Sony Group Corp.)
• Original Assignee: Sony Deutschland GmbH (Sony Group Corp.)
• Inventors: Hamdan, Amen
• Granted Patent: US 7,269,650 B2
• Time in Patent Office: Days
• US Class Current: 704/1
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548

Abstract

The present invention provides a system for supplying context information on request to context-aware devices comprising context attributes (106) specifying a type, a format, and a focus entity for a data record representing the response to the request for context information, at least one context source (109) providing context data relevant for the request of context information, at least one context interpreter (108, 401, 601, 602) for establishing an interconnection between the context attribute (106) and the context source (109), and a configuration means (801) for setting up a dynamic context graph configuration for assembling context sources and context interpreters based on their actual availability and suitability to provide the data record.

Claims

5-1. System (800) providing context information according to one of the claims 1 to 5,

characterised in

that context sources (109) access sensors (803) providing physical data and/or information data.

22. Method for providing context information on request with steps for:

specifying a type, a format, and a focus entity for a data record representing a response to a request for context information,

locating one or more context sources (109) providing context data relevant for said request of context information,

locating one or more context interpreters (108, 401, 601, 602) for processing said provided context data related to said focus entity into the specified type and format for said data record, and

setting-up a dynamic context graph configuration for assembling context sources (109) and context interpreters (108, 401, 601, 602) based on their actual availability and suitability to provide said data record.

23. Method according to claim 22,

characterised in

that the availability and suitability of each context source (109) and/or each context interpreter (108, 401, 601, 602) is monitored constantly.

24. Method according to claim 23,

characterised in

that if a context source (109) and/or a context interpreter (108, 401, 601, 602) is detected to fail by no longer being available and/or being unsuited to provide or process context data, the part of the context graph configuration constituted by the failed context source (109) or context interpreter (108, 401, 601, 602) and context sources (109) and/or context interpreters (108, 401, 601, 602) connected to its input connector is invalidated and reconstructed.