KR100712808B1 - Mobile terminal for supporting the context-aware service and Method of providing the context-aware service in the mobile terminal - Google Patents

Mobile terminal for supporting the context-aware service and Method of providing the context-aware service in the mobile terminal Download PDF

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KR100712808B1
KR100712808B1 KR1020050048878A KR20050048878A KR100712808B1 KR 100712808 B1 KR100712808 B1 KR 100712808B1 KR 1020050048878 A KR1020050048878 A KR 1020050048878A KR 20050048878 A KR20050048878 A KR 20050048878A KR 100712808 B1 KR100712808 B1 KR 100712808B1
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South Korea
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service
context
sml
user
situation
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KR1020050048878A
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Korean (ko)
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KR20060127647A (en
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김후종
나승원
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에스케이 텔레콤주식회사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72563Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances
    • H04M1/72569Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances according to context or environment related information
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00Handling natural language data
    • G06F40/20Natural language analysis
    • G06F40/205Parsing
    • G06F40/221Parsing markup language streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72563Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances
    • H04M1/72566Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances according to a schedule or a calendar application
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72563Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances
    • H04M1/72572Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances according to a geographic location

Abstract

The present invention relates to a context-aware service, which recognizes a user's situation according to a service scenario, autonomously executes a user's request, desire, command, etc. and provides the user with optimal information in real time. XML-based ubiquitous middleware and a method of providing a context-aware service to a user with the support of ubiquitous middleware in a mobile communication terminal, and contents of a service scenario of a user described as a U-SML document in ubiquitous middleware In this way, it can recognize user's situation and autonomously execute user's demands, desires, commands, etc., and provide the user with optimal information in real time, thus enabling mobile communication terminals to build a ubiquitous computing environment. And, it can save the user from the hassle of providing context-aware services. It can be used as a middleware in a mobile communication terminal without modifying the existing mobile service infrastructure area, and through this integration with existing Wi-Fi and browsers, the situation-aware service can be optimally provided to users within existing services. There is.
Ubiquitous, Context Awareness, Ubi-Middleware, Mobile Communication Terminal, U-SML

Description

Mobile terminal for supporting context-aware service and method for providing context-aware service using same

1 is a hierarchical diagram of an ubiquitous middleware infrastructure of a mobile communication terminal to which the present invention is applied.

2 is a diagram illustrating an embodiment of ubiquitous middleware for context-aware service support according to the present invention.

3 is a diagram illustrating an embodiment of a module of a U-SML document defined in the present invention.

4 is a diagram illustrating an embodiment of context-aware data used in ubiquitous middleware according to the present invention.

5 is a flowchart illustrating a method for providing a context awareness service using ubiquitous middleware in a mobile communication terminal according to the present invention.

6 is a diagram illustrating an embodiment of a context awareness service to which the present invention is applied.

* Explanation of symbols on the main parts of the drawing

40: U-SML Parser 41: Service Queue

42: service scheduler 43: situation awareness command unit

44: Situation Information Manager 45: Situation Information Store

46: ActionScript handler

The present invention relates to a context-aware service, and more particularly, to recognize a user's situation according to a service scenario, to autonomously execute a user's request, desire, command, and the like, and to provide optimal information to the user. The present invention relates to an XML-based ubiquitous middleware for providing in real time, and a method for providing a context awareness service to a user with support of the ubiquitous middleware in a mobile communication terminal.

Recent telecommunication paradigms may be ubiquitous computing, ubiquitous network, pervasive computing, and the like. These are all the same concept, meaning ubiquitous means that the user can easily obtain the information they want anytime / anywhere.

In the coming ubiquitous era, smart objects with computing and communication capabilities will be able to recognize and adapt to dynamic environment changes, that is, situational awareness.

Context aware refers to acquiring changes in the user's current location, behavior and tasks, temperature, time, and emotional state from the environment. In addition, a context aware service (CAS) refers to providing a service suitable for a user's situation based on the above context information. This context-aware service recognizes the user's situation by collecting and exchanging the situation information, and provides the user with the appropriate service through the process of interpretation and reasoning, and will emerge as the main service in the ubiquitous era in the future. will be.

Conventionally, in communication between people, the user collects situation information based on his five senses and intellect, judges the current situation through inference, and requests and provides appropriate services to others.

However, in the future ubiquitous era, the major objects and devices around everyday life will have computing and communication ability and the ability to recognize the surrounding situation. You will be comfortable. In such a ubiquitous era, as an intelligent thing and device, a mobile communication terminal that is universal to the public may be representative.

However, the conventional mobile communication terminal guarantees mobility and portability, but recognizes the user's situation through intelligent agent function, in particular, collecting and exchanging situation information, and is suitable for the user through processing such as interpretation and inference. It does not provide services.

For example, the mobile communication terminal is equipped with a wireless Internet function so that the user can access the Internet anytime and anywhere to obtain the desired information. I'm getting it.

In addition, even if the intelligent agent program is mounted in the mobile communication terminal, the intelligent agent program according to each terminal specification should be mounted in the mobile communication terminal having different specifications for each terminal manufacturer. On the other hand, the content of the intelligent agent program as described above, preferably the situation information should be provided in different formats, formats, etc., respectively, the content provider server must generate the situation information for each terminal. In other words, such an intelligent agent program is an application that runs on a terminal operating system. Since there is no standardized situation recognition specification, each program developer is implemented in a different standard.

The present invention has been proposed to solve the above problems and to meet the above demands, and recognizes the situation of the user according to the service scenario to autonomously execute the user's request, desire, command, etc. and is optimal for the user. The purpose of the present invention is to provide a ubiquitous middleware based on XML for providing information in real time, and a method for providing a context awareness service to a user with the support of the ubiquitous middleware in a mobile communication terminal.

In order to achieve the above object, the present invention provides a U-SML for parsing an externally provided Ubiquitous-Service Markup Language (U-SML) document into a context recognition service description part, a context recognition service condition part, and a context awareness service execution part. A parser; A service queue to which the context aware service description part parsed by the U-SML parser is queued; A service scheduler which grasps the schedule described in the context aware service description part queued in the service queue and informs the context aware command section of the context aware service schedule; A situation information storage configured to store situation information around a user acquired from a sensor mounted in the terminal and / or an external information providing server; A context information manager for managing the context information stored in the context information repository and delivering the context information to the context awareness command unit; If the situation condition described in the context recognition service condition part parsed by the U-SML parser matches the situation information received from the situation information manager while executing according to the schedule notified from the service scheduler, and matches with the inspection result. A context awareness instruction unit for instructing an action handler to execute a context awareness service; And an action script handler configured to execute the execution contents described in the context recognition service execution part parsed by the U-SML parser through a corresponding application by an instruction of the context awareness command unit. to provide.

On the other hand, the method of the present invention, in the context-aware service providing method in the mobile communication terminal, when the Ubiquitous-Service Markup Language (U-SML) document generated by the service scenario of the user is downloaded from the outside The U-SML document is registered in the ubiquitous middleware, and the ubiquitous middleware starts a context recognition service according to the U-SML document registration, and the U-SML document is included in the context recognition service description part, the context recognition service condition part, and Parsing into a context aware service execution part; Queuing the parsed context aware service description part; Identifying a schedule described in the queued context aware service description part; A fourth step of checking whether or not the context condition described in the parsed context recognition service condition part coincides with the context information around the user acquired from a sensor mounted in the terminal and / or an external information providing server according to the identified schedule; And a fifth step of instructing execution of the execution contents described in the parsed situation recognition service execution part to be executed through the corresponding application when the situation condition and the situation information match with the inspection result.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or custom of a user or an operator. Therefore, the definition should be made based on the contents throughout the specification.

1 is a hierarchical diagram of an ubiquitous middleware infrastructure of a mobile communication terminal to which the present invention is applied.

As shown in FIG. 1, a typical mobile communication terminal includes a hardware 10 such as a display, a keypad, a microphone, a speaker, a memory, a CPU, a GPS module, etc. belonging to a hardware layer, and an O / S (eg, REX, etc.) belonging to an operating system layer. 11 and a wireless Internet platform (eg, belonging to the middleware layer); 12, a content 13 belonging to an application layer, and a download application 14 are mounted. On the other hand, the communication network is provided with a content providing server 20 for providing various contents to the mobile communication terminal via the Internet.

Ubi-Middleware 30 of the present invention is mounted on the middleware layer of the mobile communication terminal as described above, and the Ubi-Agent 32 is installed on the application layer that is the upper layer of the Ubi-Middleware 30. Ubi-Agent Management Gateway (31) for porting (connecting) to (30) is mounted, Ubi-Agent (Ubi-Agent) for multi-modality with the user in the application layer (32) Is mounted.

As described above, the Ubi-Middleware Infra is largely divided into the Ubi-Agent terminal infrastructure area, that is, Ubi-Middleware 30, Ubi-Agent Management Gateway 31 and Ubi-Agent 32, and It can be seen that the mobile service infrastructure area of, i.e., wireless Internet platform 12, download application 14, and the like. Here, the mobile service infrastructure area is to process the content related to the context recognition service processed / stored / transmitted from the content providing server 20 as before, the ubiquitous agent terminal infrastructure area is provided from the content providing server 20 This is to recognize the situation of the user based on the contents related to the recognition, to autonomously execute the user's demands, desires, and commands, and to provide the user with the optimal information in real time.

The distinction between the ubiquitous agent terminal infrastructure area and the mobile service infrastructure area in the mobile communication terminal as described above is to enable the mobile communication terminal to be used without modifying various existing services. Can ease the burden

Therefore, in the ubiquitous agent terminal infrastructure area of the present invention, context-related content may be processed / applied within the existing service through interworking with the existing mobile service infrastructure area of Wi-Fi and a browser.

2 is a diagram illustrating an embodiment of ubiquitous middleware for supporting context awareness service according to the present invention.

The ubiquitous middleware 30 for supporting a context aware service in a mobile communication terminal according to the present invention includes a U-SML parser 40, a service queue 41, and a service scheduler. Scheduler 42, Context-Aware Commander 44, Context Information Manager 44, Context Information Repository 45, Action Script Handler Handler) 46.

Meanwhile, the context-aware service implementer 47 shown in the figure is implemented as a Wi-Fi, a browser, a download application, etc. belonging to the existing mobile service infrastructure area, and the context is handled by the action script handler 46. Note that the recognition service is a module that does not belong to the ubiquitous middleware 30 of the present invention.

The present invention defines a language capable of easily expressing a context-aware service frequently used in a mobile environment, that is, an XML-based "Ubiquitous-Service Markup Language (U-SML)". Each module of the U-SML will be described later in detail with reference to FIG. 3.

As shown in FIG. 2, the ubiquitous middleware of the present invention is a description part of a context recognition service scenario represented by a U-SML document, a context recognition service description part, a condition part, and a context recognition service condition. Recognize the situation of the user of the mobile communication terminal according to the part) and the action part (action part, execution part) and autonomously execute the user's request, desire, command, etc. and provide the user with the best information in real time. .

That is, the U-SML document is composed of a context aware service description part, a context aware service condition part, and a context aware service execution part, and one U-SML document corresponds to one context aware service. Such U-SML documents are parsed (interpreted) by the ubiquity middleware 30, preferably U-SML parser 40, in a background process and read on the mobile terminal.

As the U-SML document is parsed on the mobile communication terminal, the context-aware service description part of the U-SML document is queued in the service queue 41, and the service scheduler 42 performs a service queue. The schedule described in the context awareness service description part queued at 41 is transmitted to the context awareness command section 43, and the context information manager 44 sends the context information stored in the context information store 45 to the context awareness command section ( 43). Accordingly, when the context recognition command unit 43 matches the condition described in the context recognition service condition part of the U-SML document with the above context information, the action script handler 46 instructs the action to be executed, and accordingly The action script handler 46 executes the contents described in the context aware service execution part of the U-SML document through the context awareness service performer 47.

Meanwhile, the context aware service execution part that does not match the context awareness service condition remains in the service queue 41 without being executed, and is stored in the service queue 41 without the context awareness service execution part running. The U-SML document is cleaned up, that is, deleted by the service scheduler 42 when the validity period expires (i.e., the schedule described in the context aware service description part expires).

3 is a diagram illustrating an embodiment of a module of a U-SML document defined in the present invention.

As shown in FIG. 3, the U-SML document defined in the present invention is an XML-based document including data. As described above, a description part (condition description service description part) 50 and a condition are mentioned. It consists of a part (Condition Part, context awareness service condition part) 60 and an action part (action part, context awareness service execution part) 70. In particular, the U-SML document has the advantage that it is easy to update each function according to the context-aware service to be implemented in the mobile terminal, and that a new service can be simply generated.

The context aware service description part 50 is composed of a service title 51, a schedule 52, a user permission 53, and the like.

The context-aware service condition part 60 includes a user location 61, a battery 62, a user move 63, a use time 64a, a current time. time (64b), light (65), temperature (66), noise (67), weather (68) and medical sensing (69), etc. Is done.

The context recognition service execution part 70 is composed of a plurality of scripts 71 describing processing procedures related to SMS transmission, reception, sound alarm, browser execution, and specific program execution. On the other hand, the modules of each part 50, 60, 70 are optionally described in the U-SML document.

An example of the above U-SML document in [Table 1] is as follows.

<usml> <descrption> // Situation Awareness Service Description Part (50) <title> Guide to Restaurants Near Golf Course </ title> <schedule start = “2005/05/01” expire = “2005/05/31” week = “ sat, sun ”time =“ 10:00 AM~12:00AM ”loop =“ 20min ”> </ description> <condition> // Situation Awareness Service Condition Part 60 <location area =“ Golf Course ”option =“ field ” cond = “1”> <location area = “Gyeonggi-do, South Korea” option = “around” cond = “1”> <nomove duration = “> 1:00:00”> <time range = “> 11:00 AM, < 12:00 PM ”> </ condition> <action> // Run Situational Aware Service Part (70) <script> browser.url =“ http://wap.nate.com/food/a.jsp?location=$location&favorite = $ favorite ”; </ script> </ action> </ usml>

In the U-SML document of [Table 1] above, "<description>" describes "<title>" displayed on the screen and "<schedule>" which specifies the schedule information. "We recognize situational awareness at 20-minute intervals between 10 am and 12 am during the weekend between May 01 and May 31, 2005." Here, the user right 53 is not described.

"<condition>" may describe one or more conditions and a condition in which several conditions are combined. The content described in "<condition>" means that the user is playing golf at a golf course located in Gyeonggi-do, South Korea, and the user does not move out of the golf course for more than one hour (does not leave) and the current time is from 11 am to 12 am If it's between, the condition is consistent. "

"<action>" describes a script (71) for accessing the browser when the recognition condition is met, the contents of which are connected to the "content providing server 20, the current location information ($ location) and the food that the user can eat. Information and restaurant information ($ favorite) in the browser. "

4 is a diagram illustrating an embodiment of context awareness related data used in ubiquitous middleware according to the present invention.

As shown in the figure, context-related data used in ubiquitous middleware is divided into context-aware condition data, sensing data, and information / action data.

The context recognition condition data is processed by the context recognition service providing server and included in the U-SML document. The condition is determined and generated according to the service scenario input of the user. In the mobile communication terminal, the situation recognition condition data is downloaded from the context awareness service providing server through the download application 14, and the U-SML document is read by the ubiquitous middleware 30 so that the context recognition condition data is ubiquitous. It is processed in the middleware 30. "<Condition>" shown in FIG. 3 is situation recognition condition data generated according to a service scenario input item of a user.

The sensing data includes raw sensing data obtained from various sensors mounted in the mobile communication terminal (ie, GPS position information represented by X / Y coordinates acquired from the sensor) and mobile communication in a location information providing server (LBS server). The data received from the terminal is processed and classified into processed sensing data (ie, POI information corresponding to GPS location information expressed in X / Y coordinates, for example, building names of X / Y coordinate points, road information, etc.) provided to the mobile communication terminal. do. The sensing data is used as user context information when the situation recognition condition is determined by the ubiquity middleware 30. The sensor mounted on the mobile communication terminal used to determine whether the service usage time of "<condition>" shown in FIG. 3 matches the current time is a sensor, and the current time captured through this clock is raw sensing data. .

The information / action data is data downloaded from the content providing server 20 when the conditions match by comparing the situation recognition condition data with the sensing data (user situation) in the ubiquity middleware 30. The swap page specified in the download URL described in "<action>" shown in Fig. 3 is information / action data.

5 is a flowchart illustrating a method for providing a context awareness service using ubiquitous middleware in a mobile communication terminal according to the present invention.

First, in order to receive a situation awareness service, for example, a restaurant guide service around a golf course, a user accesses a situation awareness service providing server to his mobile communication terminal on May 01, 2005 (500).

When the user is connected to the context-aware service providing server as described above, the user provides a list of services provided by the context-aware service providing server, for example, "1. Restaurant guide service around a golf course", "2. Movie guide service in front of a cinema", "3 Looking for a service to go out according to the weather, etc. "1. Select a service around the golf course restaurants" (501).

Then, the user inputs a service scenario for “restaurant guide service around golf course” according to the query of the context aware service providing server (502). At this time, the user recognizes the situation recognition condition in the 20 minutes interval from 10 am to 12 am during the weekend between May 01, 2005 and May 31, 2005 as the situation awareness service schedule. As a condition of service, "If you are playing golf at a golf course in Gyeonggi-do, South Korea, and you are not moving outside of the golf course for more than one hour, and the current time is between 11 am and 12 am," A service scenario of "recognizing the location information ($ location) and the user's food information and restaurant information ($ favorite) displayed on the browser by accessing the content providing server 20 as a content recognition server execution content" is input.

Accordingly, the context-aware service providing server generates a U-SML document for a "restaurant guide service around the golf course" to be provided to the user based on the service scenario input by the user and downloads the U-SML document to the mobile communication terminal (503). These U-SML documents have been shown earlier in [Table 1].

Accordingly, the mobile communication terminal downloads the U-SML document for the content, preferably, "restaurant guide service around the golf course" through the download application 14, and the ubiquitous middleware 30 by the ubiquitous agent 32. It is registered at 504. Accordingly, the ubiquitous middleware 30 starts the service from May 01, 2005, when the U-SML document is downloaded, that is, "restaurant guide service around the golf course." In the following, Ubi-Middleware (30), "restaurant guide service around the golf course" began on May 01, 2005, the user is playing golf at Nice golf course in Gwangju, Gyeonggi-do, Korea from 10:30 am on May 28, 2005 In the following description, an example of providing a restaurant guide service around a golf course to the user during hitting will be described.

As described above, the U-SML document for "restaurant guide service around the golf course" is registered in the ubiquitous middleware 30, so the ubiquitous middleware 30 starts the service. That is, the U-SML document registered in the ubiquitous middleware 30 parses the syntax in the document into a context recognition service description part, a context recognition service condition part, and a context recognition service execution part. (505). Then, the U-SML document file in the service queue 41 and the context-aware service description part parsed by the U-SML parser 40 [situation-aware service schedule: from May 01, 2005 to May 31, 2005] Recognizes the situation awareness condition every 20 minutes from 10 AM to 12 AM during the weekend between days "].

Subsequently, the service scheduler 42 grasps the schedule described in the context aware service description part queued to the service queue 41, and informs the situation recognition command unit 43 of the start of the schedule for each service schedule time. In operation 44, context information (eg, current time, user location, etc.) stored in the context information storage 45 is transmitted to the context awareness command unit 43 (507). The contextual information stored in the contextual information storage 45 is raw sensing data obtained through various sensors (eg, a clock, a GPS module, etc.) mounted in a mobile communication terminal, or processed sensing data downloaded from an LBS server. .

As described above, while the schedule information and the situation information are continuously obtained from the service scheduler 42 and the situation information manager 44, the situation recognition command section 43 describes the conditions described in the situation recognition service condition part of the U-SML document. The process of checking whether and the above situation information is consistent is continuously performed. In other words, the situation recognition command unit 43 is executed at intervals of 20 minutes from 10 AM to 12 AM during the weekend, for example, between May 01, 2005 and May 31, 2005, according to the schedule information. Situational Awareness Service condition part parsed by U-SML parser 40 every time [Situational Awareness Service condition: "You are playing golf at a golf course located in Gyeonggi-do, South Korea, Checks whether the current time is between 11 am and 12 am] and the status information (508). In addition, the service scheduler 42 and the context information manager 44 preferably perform the process continuously as long as the mobile communication terminal is powered on.

If the above conditions are consistent with the conditions described in the Situational Awareness Service Condition part of the U-SML document, that is, the user is located in Gwangju, Gyeonggi-do, Korea from 10:30 AM on May 28, 2005 If you enter the nice golf course and continue playing golf at the nice golf course at 11:40 am at the current time, the situation recognition command unit 43 recognizes that the condition recognition service condition is matched, and then provides the action script handler 46 to the action script handler 46. Command to execute (509).

In this case, the action handler 46 parses the context-aware service execution part parsed by the U-SML parser 40 (the context recognition service execution content: " the content providing server 20 and accesses the current location information ($ location) "). Display the user's edible food information and restaurant information ($ favorite) in the browser "] to execute the corresponding situation recognition service execution unit 47 (preferably a browser) corresponding to the processing procedure of the script. Perform the service (510). Accordingly, a browser belonging to the context awareness service performing unit 47 accesses the content providing server 20 and connects the user's current location (eg, Nice golf course No. 17 hole, etc.) and food information (eg, "1" through interworking between the LBS servers. Download "Sasan Love Buffet", "2. Roasted Shrimp Salt", "3. Sky Beef (Beef)" and restaurant information (eg "1. San Love Buffet" reservation / directions, etc.) and display it on the screen.

6 is a diagram illustrating an embodiment of a context awareness service to which the present invention is applied.

If a user enters Nice Golf Course in Gwangju, Gyeonggi-do from 10:30 AM on May 28, 2005 and continues to play at Nice Golf Course at 11:40 AM, the mobile terminal will be ready for lunch. The browser displays a screen for guiding nearby restaurants, and the user can recognize the restaurant guide service around the golf course through the context-aware service notification sound, and access the wireless Internet according to the contents displayed in the browser to receive restaurant directions or make reservations for the restaurant. You can do it.

While the content of the present invention has been described by way of examples, the embodiments of the present invention are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. Those skilled in the art to which the present invention pertains may modify or alter the present invention in various forms within the principles and scope described in the claims herein.

As described above, the present invention recognizes the user's situation in accordance with the contents of the user's service scenario described as U-SML document in Ubi-Middleware, and autonomously executes the user's request, desire, command, etc. It can be provided in real time, and there is an effect that allows the mobile communication terminal to build a ubiquitous computing environment.

In addition, the present invention can reduce the hassle for providing a situation-aware service to the user, and can be used as a middleware in the mobile communication terminal without modifying the existing mobile service infrastructure area, and thus with the existing Wiki, browser, etc. Through interworking, context-aware services can be optimally provided to users within existing services.

Claims (7)

  1. A U-SML parser for parsing an externally provided Ubiquitous-Service Markup Language (U-SML) document into a context aware service description part, a context aware service condition part, and a context aware service execution part;
    A service queue to which the context aware service description part parsed by the U-SML parser is queued;
    A service scheduler which grasps the schedule described in the context aware service description part queued in the service queue and informs the context aware command section of the context aware service schedule;
    A situation information storage configured to store situation information around a user acquired from a sensor mounted in the terminal and / or an external information providing server;
    A context information manager for managing the context information stored in the context information repository and delivering the context information to the context awareness command unit;
    If the situation condition described in the context recognition service condition part parsed by the U-SML parser matches the situation information received from the situation information manager while executing according to the schedule notified from the service scheduler, and matches with the inspection result. A context awareness instruction unit for instructing an action handler to execute a context awareness service; And
    An action script handler that executes the execution contents described in the context recognition service execution part parsed by the U-SML parser through the corresponding application by the instruction of the context awareness command unit.
    Mobile communication terminal for supporting a context-aware service, characterized in that it comprises a ubiquitous middleware.
  2. The method of claim 1,
    The U-SML document is an XML-based document structured as a context aware service description part, a context aware service condition part, and a context aware service execution part, and one U-SML document corresponds to one context aware service. A mobile communication terminal for supporting a context aware service.
  3. The method of claim 2,
    The context-aware service description part of the U-SML document describes a context-aware service name and context-aware service schedule information.
  4. The method of claim 2,
    The situation recognition service condition part of the U-SML document optionally describes at least one of user location, battery status, user mobility, service use time, current time, illuminance, temperature, noise, weather, and medical sensing information. A mobile communication terminal for supporting a context awareness service.
  5. The method of claim 2,
    The situation recognition service execution part of the U-SML document supports the situation recognition service, wherein a procedure for transmitting / receiving an SMS message, a sound alarm, a browser execution, and a specific program execution is selectively described by at least one script. Mobile terminal for.
  6. The method according to any one of claims 1 to 5,
    The U-SML document received from the outside is stored in the service queue, and the service scheduler deletes the U-SML document whose schedule described in the context recognition service description part of the U-SML document expires. A mobile communication terminal for supporting a context awareness service.
  7. In the context aware service providing method in a mobile communication terminal,
    When the U-SML (Ubiquitous-Service Markup Language) document generated by the service scenario of the user is downloaded from the outside, the mobile communication terminal registers the U-SML document in ubiquitous middleware, and the ubiquitous middleware is U-SML. In accordance with document registration, the situation awareness service is started.
    Parsing the U-SML document into a context aware service description part, a context aware service condition part, and a context aware service execution part;
    Queuing the parsed context aware service description part;
    Identifying a schedule described in the queued context aware service description part;
    A fourth step of checking whether or not the context condition described in the parsed context recognition service condition part coincides with the context information around the user acquired from a sensor mounted in the terminal and / or an external information providing server according to the identified schedule; And
    A fifth step of instructing execution of the execution contents described in the parsed situation recognition service execution part to be executed through a corresponding application when the situation condition and the situation information match with the inspection result;
    Method for providing a context awareness service using ubiquitous middleware in a mobile communication terminal comprising a.
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