Apparatus and method for providing context-aware service

• US 20060020633A1
• Filed: 07/26/2005
• Published: 01/26/2006
• Est. Priority Date: 07/26/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Cho, Yong-jin
• Granted Patent: US 7,937,434 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2209/5016 Session
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: G06N 5/04 Inference or reasoning models
• CPC Class Codes: G06Q 20/382 insuring higher security of transaction

Abstract

An apparatus and method for providing a context-aware service are provided. The apparatus includes a context-aware service object (CAS) management module managing information on a CAS and a context defined by the CAS, a sensor management module managing information on a sensor and requesting the sensor to observe knowledge, and a context management module informing the CAS management module of a CAS defining a context provided by the CAS management module when observed knowledge satisfies the context defined by the CAS, wherein upon being informed of the CAS by the context management module, the CAS management module requests the CAS to provide a service.

Claims

1. An apparatus for providing a context-aware service, the apparatus comprising:

a context-aware service object (CAS) management module which manages CAS information of a CAS and a context which is defined by the CAS;

a sensor management module which manages sensor information of a sensor and requests the sensor to observe knowledge; and

a context management module which informs the CAS management module of a CAS which defines a context which is provided by the CAS management module when knowledge which is observed satisfies the context which is defined by the CAS, wherein the CAS management module requests the CAS to provide a service if the CAS management module is informed of the CAS by the context management module.

2. The apparatus of claim 1, wherein the context management module comprises:

a knowledge repository which stores the knowledge;

a query processor which sends a query to the knowledge repository;

an inference engine which determines whether the knowledge satisfies the context; and

a trigger processor which informs the CAS management module of the CAS according to a determination of the inference engine.

3. The apparatus of claim 1, wherein the CAS information comprises at least one of an identifier of the CAS, state information of the CAS, and information on a communication method which is used by the CAS.

4. The apparatus of claim 1, wherein the CAS information is stored in a CAS repository.

5. The apparatus of claim 1, wherein the sensor information comprises at least one of an identifier of the sensor, state information of the sensor, information on a communication method which is used by the sensor, and information on knowledge to be observed by the sensor.

6. The apparatus of claim 1, wherein the sensor information is stored in a sensor repository.

7. The apparatus of claim 1, wherein the context is stored in a context repository.

8. A method of providing a context-aware service, the method comprising:

registering CAS information of a context-aware service object (CAS) and a context which is defined by the CAS;

registering sensor information of a sensor;

receiving knowledge which is observed by the sensor based on the sensor information;

informing of the CAS which defines the context when the knowledge which is received satisfies the context; and

requesting the CAS to provide a service.

9. The method of claim 8, wherein the CAS information comprises at least one of an identifier of the CAS, state information of the CAS, and information on a communication method which is used by the CAS.

10. The method of claim 8, wherein the sensor information comprises at least one of an identifier of the sensor, state information of the sensor, information on a communication method which is used by the sensor, and information on knowledge to be observed by the sensor.

11. A method of providing a context-aware service, the method comprising:

receiving a registration request from a sensor;

registering sensor information of the sensor in response to the registration request;

requesting the sensor to observe knowledge if the knowledge which is observed by the sensor is needed;

receiving a removal request from the sensor; and

deleting the sensor information in response to the removal request.

12. The method of claim 11, wherein the sensor information comprises at least one of an identifier of the sensor, state information of the sensor, information on a communication method which is used by the sensor, and information on knowledge to be observed by the sensor.

13. A method of providing a context-aware service, the method comprising:

receiving a registration request from a context-aware service object (CAS);

registering CAS information of the CAS and a context which is provided by the CAS in response to the registration request;

examining whether knowledge which is provided by the sensor satisfies the context if a sensor which is necessary to determine the context has been registered;

receiving a removal request from the CAS; and

deleting the CAS information and the context in response to the removal request.

14. The method of claim 13, wherein the CAS information comprises at least one of an identifier of the CAS, state information of the CAS, and information on a communication method which is used by the CAS.