KR20070061044A - System and method for user context based dynamic service composition - Google Patents

Abstract

A system for dynamically combining services based on user context and a service providing method thereof are provided to dynamically combine/offer a new service as well as the service registered from a user by considering user information, the user context, and service use records collected from a physical region in a ubiquitous environment. A physical region part(240) detects the context including customer information, preference, an environment state, a physical state, and a service state of a customer. A context recognizer(230) recognizes the context of the customer based on the context detected from the physical region part and stores/manages the recognized context. A service provider(220) provides the service adapted to the customer by estimating and combining the services based on the context and the service use records. An application part(210) is connected to the customer and an SP(Service Provider), and transfers customer request information and service provision information for providing the service.

Description

Dynamic service combination system and service provision method using user context information {System and method for user context based dynamic service composition}

1 is a structural diagram of a network for dynamic service combination and service provision using user context information according to an embodiment of the present invention.

2 is a structural diagram of a context-based service providing system according to an embodiment of the present invention.

3 is a structural diagram of a service providing unit according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a dynamic service providing method using user context information according to an embodiment of the present invention.

The present invention relates to a service combination and a method of providing, and more particularly, to a system and method for dynamically combining and providing a new service based on the user's context information.

Recently, with the development of the information industry and mobile communication technology, the concept of a computer is rapidly expanding beyond the concept of a personal computer. For example, as a new paradigm, ubiquitous computing has emerged, in which computers are embedded in all objects around us, networked with each other, and mutually cooperated and compromised to provide computing invisible to human life. It is becoming.

Ubiquitous environment means development into network environment that requires integrated management and interworking, not simple control of fixed and mobile nodes. That is, the ubiquitous environment means that the computer detects a user's state, analyzes the detected state information, and provides a personalized service suitable for the same. In such a ubiquitous computing environment, there is a need for a service mobility technology that continuously provides the same service whenever and wherever the user moves, and a technology for managing user context information required for service movement.

In addition, general service provisioning serves to find a service in middleware and deliver it to users using information registered by service providers. However, in a ubiquitous environment in which a user's situation and surrounding environment change frequently, and satisfy a user who wants to use a service anytime and anywhere, the purpose of the service is not simply to discover and provide a service.

Using such a conventional system, since only a service desired by a user is generally provided regardless of the current situation of the user, there is a problem in that a service not registered in the system cannot be provided to the user.

Even if a user finds and provides a service suitable for the user by considering the user's context information, the service usage history of the user is examined to find a new service combination rule, and the service suitable for the user's situation cannot be combined and provided. In other words, although a combination of contents is provided focusing only on a consumer's consumption pattern, there is a problem in that a service combination cannot be performed to provide a service considering a user's current situation or a user's preference.

Accordingly, the present invention solves the problems of the prior art as described above, and dynamically combines a new service in consideration of the information of the user collected in the physical area, the surrounding environment, and the user's service usage history in a ubiquitous environment. It provides a system and method that can be provided to the user.

In particular, the present invention provides a system and method for combining and providing a new service suitable for a user by using the information collected as described above, in addition to the service registered by the user.

In a situation-based service providing system according to an aspect of the present invention for achieving the technical problem of the present invention, in the system for dynamically providing a service provided by the service provider to the service consumer based on the user context information,

A physical area unit configured to detect context information including information of the service consumer, preferences, a surrounding environment state, a physical state of the service consumer, and a service situation; A situation recognition unit recognizing situation information of the service consumer based on the situation information detected from the physical area unit, and storing and managing the information; A service providing unit which provides an adapted service to the service consumer by evaluating and combining the service based on the situation information stored in the situation recognition unit and the service usage history; And an application unit connected to the service consumer and the service provider, and configured to transmit service consumer request information and service provision information to the service provider to provide a service.

According to another aspect of the present invention, there is provided a context-based service providing method, in which a service provided by a service provider is dynamically provided to a service consumer in a service providing system based on user context information.

(a) searching for a service based on a service query requested from the service consumer; (b) analyzing a service usage pattern based on service history information used by the service consumer if a service to be provided to the service user is not found based on the service query; And (c) collecting a service combination pattern corresponding to the service consumer based on the analysis, and providing a service combination after combining services based on the collected service combination pattern.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

1 is a structural diagram of a network for dynamic service combination and service provision using user context information according to an embodiment of the present invention.

1, in order to provide a dynamic service using user context information, information is provided from the information providing server 100 to the context-based service providing system 200 and connected to the context-based service providing system 200. Service provider 500 and service consumer 400 that receives services from service provider 500. Here, the user context information includes a user's current location, physical condition, economic ability, service status, and the like.

The information providing server 100 provides the context-based service providing system 200 with user context information, basic service information, and transaction storage information about the service consumer 400 to receive the service provided from the service provider 500. . In this case, the user context information includes a service mobility preference of the service consumer 400, a device preference of the user, and the like.

In addition, the basic service information refers to basic information such as the type of service provided to the service consumer 400, an environment in which the service can be executed, and the like. The transaction store records and stores user service transaction information provided to the service consumer 400.

The context based service providing system 200 searches for a service requested by a user based on user context information stored in the information providing server 100, and provides information about a service provider 500 that provides a service corresponding to the user context information. To the service consumer 400. In addition, by using the service history history of the user performs a function of combining the services to provide the optimal service to the service consumer (400).

Next, a structure of a system for providing a dynamic service using user context information will be described with reference to FIG. 2.

2 is a structural diagram of a context-based service providing system according to an embodiment of the present invention.

As shown in FIG. 2, the context-based service providing system 200 may include an application layer 210, a service provisioning layer 220, a context awareness layer 230, and the like. The physical layer unit 240 includes a physical layer 240.

The application unit 210 performs a function of connecting the service provided by the service provider 500 to be provided according to the situation of the service consumer 400. The service consumer 400 and the service provider 500 are connected to the context-based service providing system 200 through the application unit 210.

The service provider 220 searches for the service according to the request and the context information of the service consumer 400 and evaluates the found service. In addition, in order to provide a suitable service to the service consumer 400 based on the status information of the service consumer 400 and the existing service usage history, it performs a function of newly combining and evaluating the service and delivering it to the service consumer 400. .

The physical area unit 240 determines the service consumer 400 requesting to provide the service, detects the service consumer information, the preference, and the context information of the surrounding environment of the service consumer, and provides the service consumer 400 to the situation recognition unit 230. That is, a function provided to the situation recognition unit 230 including a user profile for the service consumer 400, network information that is the environment in which the service consumer is provided with the service, a device receiving the service, and sensor information collected through the sensor. Do this.

Here, the sensor means a means for obtaining status information on the status of the profile, location, place, task, temperature, etc. of the devices possessed by the service consumer 400 and the service consumer 400 displaying the service. . For example, the location sensor may collect current location information of the service consumer 400. In addition, through the state sensor attached to or attached to a portion of the service consumer 400, the service consumer 400 collects information on the physical state (body state, such as temperature, biorhythm, etc.) of the service consumer 400 can do.

The contextual recognition unit 230 collects service consumer information, preferences, and contextual information provided from the physical area unit 240 and converts the data to store them in a contextual information storage unit (not shown) included in the contextual recognition unit 230. It performs the function.

Next, the service provider 220, which is a main element for dynamically providing a service using the context information of the service consumer 400 among the components of the context-based service providing system, will be described in detail with reference to FIG. 3. .

3 is a structural diagram of a service providing unit according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the service provider 220 includes a lookup service unit 221, a service combination unit 222, an artificial intelligence (AI) engine unit 223, a service evaluation unit 224, The service execution unit 225, the service agent 226, the service storage unit 227, the event manager 228, and the transaction line storage unit 229 are included.

The lookup service unit 221 enables the service consumer 400 corresponding to the client to find and use the information registered in the lookup service. That is, the service information received by the service consumer 400 is received, and the service service unit 227 searches for the inputted service information.

The service combination unit 222 uses basic services based on the artificial intelligence engine unit 223, and performs a function of creating a new service by combining the basic services to provide an optimal service to the service consumer 400. . At this time, the service consumer 400 managed by the event manager 228 and stored in the transaction storage unit 229 is used to generate a new service by receiving information on usage history of the service used so far.

The artificial intelligence engine unit 223 includes a data mining engine 223-1 and an ontology engine 223-2. The data mining engine 223-1 is used to combine the services by analyzing the service consumption transaction pattern of the service consumer 400 stored in the transaction storage unit 229. That is, new knowledge such as specific service preference is found by using existing service usage information and context information and used for service combination. The internal algorithm of the data mining engine 223-1 or the ontology engine 223-2 may be freely modified.

The ontology engine 223-2 performs a function of defining and maintaining associations between basic services. The service information in the ontology engine 223-2 may be updated based on the service combination newly found by the data mining engine 223-1. Based on the ontology engine 223-2, information about a service that can be basically combined and provided in the service storage unit 227 is stored.

The service evaluator 224 may configure the optimal service set by evaluating the service set or the combined service sets searched based on the context information storage unit in the context recognizer 230. Here, the situation information storage unit stores various situation information collected from a plurality of sensors located in the physical area unit 240 and evaluation information about a service provided by the service evaluator 224. In this case, the evaluation information is information on whether the services provided to the service consumers 400 are consistent with the service requested by the service consumers 400, and information confirming whether the service is the optimal service to the service consumers 400. Means.

The service execution unit 225 executes a service retrieved by the lookup service unit 221 and evaluated by the service evaluation unit 224 and determined to be suitable for the service consumer 400, and provides the service consumer 400 to the service consumer 400. As a result, the result representation interface is transmitted to the presentation of the service consumer 400. That is, the service is provided to the service consumer 400 by expressing the service in the terminal, which is the device that the service consumer 400 possesses and uses.

The service agent 226 collects a plurality of server-related information existing on the ubiquitous network by using metadata of the basic service and manages interaction with the service provider 500. Interaction means managing and registering a service provided by the service agent 226 to the service provider 500. That is, it performs a function of managing the service provider information provided from the server 100 and the service provider 500 of the application area and stored in the service storage unit 227.

The service store 227 includes a service of interest store and a basic service store. The service of interest storage unit stores service information in a form that can be directly provided to the service consumer 400 without any modification to the service. The basic service storage stores metadata and service information about the basic service.

The transaction storage unit 229 stores a transaction required until the service consumer 400 consumes the service. That is, the transaction storage unit 229 stores the service history information used by the service consumer 400. The pattern of service usage stored in the transaction store 229 is analyzed in the AI engine 223, and the data mining engine 223-1 discovers a new service combination pattern with a preference for a specific service, and discovers a new service. The combination pattern is used for service combination by rebuilding the ontology engine 223-2.

The event manager 228 receives service information used by the service consumer from the service consumer 400 and manages a service usage history.

A method of providing a dynamic service using the system for providing a dynamic service using the user context information described above will be described in detail with reference to FIG. 4.

4 is a flowchart illustrating a dynamic service providing method using user context information according to an embodiment of the present invention.

Referring to FIG. 4, when the service consumer 400 connected to the application unit 210 requests a service providing from the lookup service unit 221 of the service provider 220 (S100), the lookup service unit 221 The service consumer 400 searches whether the service is stored in the service storage unit 227 according to the request (S110).

It is determined through the search of the service storage unit 227 whether the requested service is in the service storage unit 227 (S120), and if the service is stored in the service storage unit 227, the service evaluation of the service provider 220 The service list retrieved to the unit 224 is delivered to evaluate whether it is suitable for the user context information (S130). Here, the evaluation of the service is carried out in two stages.

First, it is checked whether the searched service matches the query of the service consumer 400, and if it matches, the searched service is checked whether the service is the best service for the service consumer 400. Only when the evaluation of both stages is satisfied, the searched service is determined to be suitable for the user context information, and is provided to the service consumer 400 to be executed (S140).

However, if the searched service does not match the query of the service consumer 400, the service combination unit 222 performs a service combination after notifying the service consumer 400 that there is no service matching the query (S150).

When the service consumer 400 performs a search for whether the requested service exists in the service storage unit 227 performed in operation S120, the lookup service unit 221 may combine the services in the service combination unit 222. To ask. At this time, the service combination is performed using the artificial intelligence engine 223 of the service providing area (S150).

The service combined by the service combination unit 222 is delivered to the service evaluation unit 224 to perform a service evaluation (S130), and if determined to be a service suitable for providing to the service consumer 400, the service execution unit 225 Is provided to the service consumer 400 and executed (S140).

Here, a program for realizing a function corresponding to the configuration of the above-described embodiment of the present invention or a recording medium on which the program is recorded is also included in the scope of the present invention.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

According to the above-described embodiment, a service may be dynamically provided using the user's context information, and a new service may be combined and provided to the user.

In addition, by discovering new knowledge through data mining of the AI engine, not only can the success rate of service provision be increased by establishing a new ontology, but also dynamic service can be provided.

Claims (9)

A system for dynamically providing a service provided by a service provider to a service consumer based on user context information, A physical area unit configured to detect context information including information of the service consumer, preferences, a surrounding environment state, a physical state of the service consumer, and a service situation; A situation recognition unit recognizing situation information of the service consumer based on the situation information detected from the physical area unit, and storing and managing the information; A service providing unit which provides an adapted service to the service consumer by evaluating and combining the service based on the situation information stored in the situation recognition unit and the service usage history; And The application unit is connected to the service consumer and the service provider, and delivers the service consumer request information and service providing information for providing a service to the service providing unit Situation based service providing system comprising a. The method of claim 1, The service provider, A lookup service unit which receives a service request from the service consumer and performs a search for a queried service; A service storage unit for storing a plurality of service information and performing a search for a service requested by the lookup service unit; An event manager for managing history information of a service used by the service consumer; A transaction storage unit for storing service history information on the service consumer managed by the event manager; An artificial intelligence engine unit for detecting and outputting a service combination pattern based on the service history information stored in the transaction storage unit; A service combination unit which performs a service combination based on the service combination pattern found from the AI engine unit; A service evaluator which determines whether a service retrieved from the service storage unit is a service adapted to the service consumer; A service execution unit displaying a service to a terminal of the service consumer, when the service evaluated by the service evaluation unit is a service adapted to the service consumer; And A service agent for managing and registering services provided by the service provider to the service consumer Situation based service providing system comprising a. The method of claim 2, The artificial intelligence engine unit, The data mining engine analyzes the service usage pattern of the service consumer based on the service history information stored in the transaction storage unit, finds the service preference of the service consumer based on the analyzed usage pattern, and extracts a new service combination pattern. part; And An ontology engine unit for updating the service information by defining and maintaining a correlation between a basic service and a new service combination pattern based on the new service combination pattern extracted from the data mining engine unit. Situation based service providing system comprising a. The method of claim 1, A service server providing user context information, basic service information, and transaction storage information of the service consumer. Situation-based service providing system further comprising. The method of claim 4, wherein The user context information includes at least one of information on the current state of the user, such as the user's profile, the current location or place of the user, the temperature around the user's current location. In the method for dynamically providing a service provided by the service provider to the service consumer in the service providing system based on user context information, (a) searching for a service based on a service query requested from the service consumer; (b) analyzing a service usage pattern based on service history information used by the service consumer if a service to be provided to the service user is not found based on the service query; And (c) collecting a service combination pattern corresponding to the service consumer based on the analysis, combining the services based on the collected service combination pattern, and providing the service consumer with the service consumer; Situation-based service providing method comprising a. The method of claim 6, If the service to be provided to the service user is collected in step (b), (Iii) evaluating in the service providing system whether a service collected based on the search is a service adapted to the service consumer; And (Ii) if the collected service is a service adapted to the service consumer, providing the service through a terminal possessed by the service consumer; Situation-based service providing method comprising a. The method of claim 7, wherein Evaluating the service in the step (iii), (Iii-1) determining whether the collected service matches a query provided by the service consumer in a service request; And (Iii-2) if it matches the query of the service consumer, determining whether the service is adapted to the service consumer based on the status information of the service consumer; Situation-based service providing method comprising a. The method of claim 8, If any of the steps (i-1) or (i-2) are not satisfied, Informing the service consumer that there is no service matching the query, and analyzing the service usage pattern of step (b).

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