KR100684164B1 - A method and system for integrating context information for ubiquitous service - Google Patents

Abstract

The present invention relates to a method and system for generating situation information and integrated management in order to provide an automated service suitable for a situation in a ubiquitous environment. In accordance with an aspect of the present invention, there is provided a method for integrated management of situation information, the method comprising: receiving real world data sensed by a sensor, interpreting the received real world data, generating situation information recognizable by a computer, and Integrating and storing in a predetermined format, and displaying the converted context information using a graphical user interface. The method may further include determining whether the converted situation information is out of a normal range, and if it is determined to be out of the normal range, generating a predetermined message having an emergency flag set and transmitting the predetermined message to a ubiquitous agent. Ensure that appropriate services are provided.

Ubiquitous, contextual information, sensors, contextual framework

Description

Method and system for integrating context information for ubiquitous service

1 is a diagram schematically illustrating a configuration of a context information based service providing system according to an exemplary embodiment of the present invention.

2 is a diagram illustrating detailed processes for implementing a context aware framework processing process according to an embodiment of the present invention.

3 is a flowchart of a procedure performed by a context aware framework for configuration and management of contextual information according to an embodiment of the present invention.

4 illustrates an embodiment of an environmental context information store according to the present invention.

5 illustrates an embodiment of a location context information store according to the present invention.

The present invention relates to a method and system for generating situation information in a ubiquitous environment and integrated management thereof. More specifically, the present invention analyzes data of the real world received from various sensors to generate situation information and manages the situation information. A method and system for providing automated services.

With the rapid development of communication and computing technologies, ubiquitous computing technology has emerged in recent years. Ubiquitous computing technology refers to a technology that enables everything such as digital home / office / building, telematics, and intelligent robots to connect and perform computing functions anytime, anywhere. Ubiquitous service means all services provided under such ubiquitous computing environment.

Regarding situation information recognition and processing, patent application No. 2000-79897 (name of the invention: an apparatus for processing situation information and its processing method) is provided for generating situation information data representing hourly situation information for an arbitrary region and topic. To this end, there is disclosed a portable terminal apparatus for collecting arbitrary video, audio or text data and then editing the data on its own and sending it to a web server.

In addition, the paper published in the Spring Proceedings of the Korea Information Processing Society (May 2000, v.9, no.1, p1451-1454), "Context-Awareness-Based Personalization System Analysis", describes the situation of mobile / wireless computing users. A system for recognizing and providing appropriate personalization information to a user is disclosed.

However, conventional situation information recognition and processing techniques are limited to providing simple information services based on limited context information such as a specific subject or location in a mobile / wireless environment such as a portable terminal device or a car. Therefore, a method of overcoming the limitations of such a simple service and configuring and integrating and managing various contextual information based on sensors is required, and an automated service suitable for a situation is required based on such contextual information.

The present invention has been devised to meet the above-described requirements, and an object of the present invention is to provide a method and system for constructing and integrating and managing situation information based on real-world data received from a sensor.

Still another object of the present invention is to provide a method and system capable of providing an automated service according to a situation in a ubiquitous environment by configuring and integrating and managing situation information based on real-world data received from a sensor.

In order to achieve the above object, according to an aspect of the present invention, there is provided a method for generating situation information and integrated management in order to provide an automated service appropriate to the situation in a ubiquitous environment. In accordance with an aspect of the present invention, there is provided a method for integrated management of situation information, the method comprising: receiving real world data sensed by a sensor, interpreting the received real world data, generating situation information recognizable by a computer, and generating the situation information. Integrating and storing in a predetermined format, and displaying the converted context information using a graphical user interface. The method may further include determining whether the converted situation information is out of a normal range, and if it is determined to be out of the normal range, generating a predetermined message having an emergency flag set and transmitting the predetermined message to a ubiquitous agent. Ensure that appropriate services can be provided.

In one embodiment, the contextual information is any one of environmental contextual information and location contextual information, and the step of integrating and storing the contextual information into a predetermined format may be performed by integrating environmental contextual information and positional contextual information into separate predetermined formats. Can be stored. The method may further include determining whether the contextual information is positional status information of the dynamic object and interpreting a relationship with a static object when the situational information is dynamic positional information.

In one embodiment, the environmental information is integrated into a predetermined format including a message identifier, a message type, an object identifier, a voltage, a temperature, an illuminance, a sound, an acceleration, a magnetic field, and a time item. It may be integrated into a predetermined format including a message identifier, a message type, an object identifier, an object's three-dimensional position coordinates (x, y, z), a viewing angle, and a time item.

According to another feature of the present invention, a context-aware service providing system for providing a service suitable for a situation in a ubiquitous environment is provided. The context aware service providing system includes a sensor for sensing real world data and a context aware framework for generating and managing contextual information by receiving the sensed real world data from the sensor. Contextual information generating means for generating situational information that can be recognized by a computer by interpreting the received real-world data, Contextual information integrated management means for integrating and managing the contextual information in a selected format, and graphically displaying the contextual information And a home map management means for displaying using a user interface, and a ubiquitous agent for receiving the situation information generated by the situation recognition framework and providing a service suitable for the situation.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. However, the following detailed description is provided for illustrative purposes only and should not be construed as limiting the inventive concept to any particular physical configuration.

1 is a diagram schematically illustrating a configuration of a context information based service providing system according to an exemplary embodiment of the present invention. As shown in the drawing, the system includes a sensor platform 110 for collecting real-world data through various sensors, and a context-aware framework 120 for receiving and collecting data collected from the sensor platform 110 as context information. And a ubiquitous agent 130 that provides an automated service corresponding to the situation information interpreted by the situation recognition framework 120 when it indicates an emergency.

In one embodiment, the sensor platform 110 transmits various types of sensor nodes 111 for sensing various data of the real world and the data collected by the sensor nodes 111 to the situation awareness framework 120. It includes a sensor coordinator 112 to. The collected real-world data may include, for example, voltage, temperature, illuminance, humidity, sound, magnetic field, present time, speed of movement of an object such as a person or an object, and the like.

In one embodiment, the context awareness framework 120 is mounted on a home server to provide automated services according to the situation in the digital home and office, context information interpreter 121, context information integrator 122, home map The manager 123, the situation information manager 124, and the situation information storage 125 are included. The contextual information analyzer 121 interprets real-world data received from the sensor coordinator 112 of the sensor platform 110 into a form that can be recognized by a user and a computer and converts the data into meaningful contextual information. The contextual information integrator 122 integrates the converted contextual information into a predetermined format. In one embodiment, the context information integrator 122 distinguishes between the format of the environment context information and the position context information of the dynamic object. Although described below with reference to FIGS. 4 and 5, for example, the environment information is integrated into a format including a message identifier, a message type, an object identifier, a voltage, a temperature, an illuminance, a sound, an acceleration, a magnetic field, an item, and the like. The location information may be integrated into a format including a message identifier, a message type, an object identifier, an object's three-dimensional position coordinates (x, y, z), a viewing angle, a time, and the like. Items included in the integrated form of environmental situation information and / or location situation information may be added according to future needs, but are not limited thereto.

The contextual information manager 124 stores and manages contextual information integrated in a predetermined format in the contextual information storage 125. The contextual information manager 124 performs contextual information management functions such as storing, adding, deleting, and updating contextual information stored in the contextual information storage 1240 by user and contextually, so that contextual information is easily needed as necessary. It can be used. In one embodiment of the present invention, the context information store 125 may be divided into an environment context information store and an object context information store.

The home map manager 123 performs a function of displaying situation information in a GUI form so that a user can grasp the current real world situation. The home map manager 123 displays ubiquitous spaces such as digital homes / offices / buildings and telematics in a GUI form, and dynamically adds, deletes, and updates objects of the spaces according to circumstances.

The ubiquitous agent 130 provides an appropriate service in response to the transmission of the context information required by the service from the context information integrated by the context information integrator 122 of the context awareness framework 120.

2 is a diagram illustrating detailed processes for implementing a context aware framework processing process according to an embodiment of the present invention. Processes represent logical units of software functionality, and communicate between processes through inter-process communication (IPC) and function calls. The context aware framework processing process 201 monitors a message received from the sensor platform 110 or the ubiquitous agent 130 in which a connection is established through the context aware connection management process 202, and performs a process according to the received message. do.

Messages received from the sensor platform 110 by the situation recognition framework processing process 201 include environment data and location data. In the case of environment data, the situation information interpretation process 203 applies a predetermined rule to apply raw data from the sensor. If the data is interpreted (converted) into data that can be recognized by humans and computers, the situation information is generated, and the interpreted data is outside the predetermined normal range (for example, the normal temperature range is 10 degrees Celsius). 35 degrees may be predetermined as the normal range, and the normal range value may be changed according to the user's preference), the emergency service request message having the emergency flag set through the cognitive connection management process 202, and the ubiquitous agent 130 To allow automated service to be performed (in the example above, if the temperature is below 10 degrees, turn on the If the temperature is 35 degrees or more, the service may be automatically performed. When the context-aware framework processing process 201 receives location data of a dynamic object such as a person from the sensor platform 110, the meaning of the data is interpreted to extract three-dimensional coordinates (X, Y, Z) of the dynamic object. In addition, the relationship between the dynamic object and the static object is analyzed and then integrated into a certain form in the context information integration process 204. The integrated contextual information is then sent to the homemap management process 205 for display to the user and stored in the contextual information repository via the contextual information management process 206.

The message received by the context aware framework processing process 201 from the ubiquitous agent 130 is a response message to the emergency service request message sent by the situation information interpretation process 203, and an emergency service request message when the response message is abnormal. Resend the ubiquitous agent to run the automatic service according to the situation.

3 is a flowchart of a procedure performed by a context aware framework for configuration and management of contextual information according to an embodiment of the present invention. As shown, the context aware framework monitors the data received from the sensor platform (301), interprets the meaning of the received data, and converts it into meaningful contextual information that can be understood by humans and computers (302). ). Then, in step 303, it is determined whether the converted situation information is environment situation information or location situation information of a dynamic object.

If it is determined that the converted context information is environmental context information, it is determined whether the value is out of the normal range (304). If it is determined that the case is out of the normal range, the emergency flag is set (305), and converted into a message of a predetermined format (306), where the predetermined format may vary according to the type of the situation received from the sensor. The converted message is transmitted to the context information manager, stored in the context information store (307), and transmitted to the ubiquitous agent so that the real time service suitable for the context can be provided (308).

If the environmental situation information is within the normal range, the situation information received and converted from the various sensors are integrated (309), and transmitted to the home map management process to be displayed in GUI form on the home map (310). Then, it is converted to a predetermined format (311) and sent to the situation information manager to be stored in the situation information storage (312). The integrated situation information is filtered (313), and if the situation information requiring the service is transmitted to the ubiquitous agent so that the automated service is executed in real time (308).

When it is determined that the converted context information is the 3D position context information of the dynamic object, the relationship with the static object is analyzed (314). The relationship between a dynamic object and a static object can be defined together through the characteristics of the static object and the sharing time between the dynamic object and the static object; Dynamic objects are in front of static objects, dynamic objects are on static objects, dynamic objects use static objects (use, watch, listen, washing, cooking, opening, closing, laundering Etc).

If the context information of the converted dynamic object requires service that is not in the normal range (304) (e.g., a situation where a service needs to be turned on when the user enters the room), set an emergency flag. After conversion (305) to a predetermined format (306), the situation information manager 307 and the ubiquitous agent is transmitted (308), so that the situation information is stored and the real-time service according to the situation is provided. If the three-dimensional positional situation of the dynamic object is normal (304), it is integrated with various contextual information (309) and sent to the homemap management process (310) to be displayed on the homemap. Then, it is converted to a predetermined format (311) and transmitted to the situation information manager (312) to be stored and managed in the situation information storage. If the context information integrated through the context information filtering 313 is context information requiring a service, it is transmitted to the ubiquitous agent (308) to execute the automated service in real time.

4 illustrates an embodiment of an environmental context information store according to the present invention. In an embodiment of the present invention, the context information store is divided into an environment context information store and an object context information store, and stored and managed according to the types of context information received, interpreted and integrated from the sensor. As shown, the environmental context information store includes a message identifier 401, a message type 402, an object identifier 403, a voltage 404, a temperature 405, an illuminance 406, a sound 407, an acceleration. X 408, acceleration Y 409, magnetic field X 410, magnetic field Y 411, time 412 items, and the like. However, the type of items stored in the environmental context information store is not limited thereto, and those skilled in the art will fully understand that the items of the environmental context information store may be added according to sensors to be added in the future.

The message identifier 401 is a value that distinguishes various types of messages received, and the message type 402 distinguishes whether a message is a request message or a response message, and in the case of a response message, indicates whether the message is a normal message or an abnormal message. Allows each function to be performed for each message along with the message identifier. The object identifier 403 is an identifier for distinguishing several objects. The types of objects include dynamic objects such as humans, objects, and static objects, and humans include grandfathers, grandmothers, fathers, mothers, sons, daughters, and the like. Silver furniture (dressers, dining tables, sofas, etc.) and appliances (TVs, refrigerators, washing machines, etc.). Environmental status information includes voltage 404, temperature 405, illuminance 406, sound 407, acceleration X 408, acceleration Y 409, magnetic field X 410, magnetic field Y 411, time (412) and new sensors can be added later to obtain more environmental information. Each environmental context information is converted into a form that can be known to a person and a computer according to each unit by the data from the sensor, and together with the message identifier 401, the message type 402, and the object identifier 403, are stored in the environmental context information store. It is stored and managed, and used to run services in context.

5 illustrates an embodiment of an object context information store according to the present invention. As shown, the object context information store includes a message identifier 501, a message type 502, an object identifier 503, an X coordinate 504, a Y coordinate 505, a Z coordinate 506, a viewing angle ( 507, time 508. However, the type of items stored in the object context information store is not limited thereto, and those skilled in the art will fully understand that the items of the object context information store may be added according to sensors to be added in the future.

The message identifier 501, the message type 502, the object identifier 503, and the time 508 have the same meaning as the items of the environmental context information store, and the X coordinate 504, the Y coordinate 505, and the Z coordinate 506. ) Represents a value obtained by converting the position-related data of the object received from the sensor into three-dimensional position coordinates, and the viewing angle 507 represents a direction in which the object is located and is a value derived from the position-related data of the object received from the sensor. to be. The object context information store is generated according to the object identifier to store and manage location information of the object.

The invention may be provided as one or more computer readable media embodied on one or more articles of manufacture. The article of manufacture may be a floppy disk, a hard disk, a CD ROM, a flash memory card, a PROM, a RAM, a ROM, or a magnetic tape. Generally, computer readable programs can be implemented in any programming language. Some examples of languages that can be used include C, C ++, or JAVA.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the technical field of the present invention without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

 The present invention can be utilized in ubiquitous spaces such as digital home / office / building, telematics, and intelligent robots by presenting a context-aware framework that analyzes, integrates and manages sensor-based contextual information in a ubiquitous environment. Compared to this, it can provide automated service according to user and situation.

Claims (11)

In the method for integrated management of context information to provide a service appropriate to the situation in the ubiquitous environment, Receiving real-world data sensed by the sensor, Interpreting the received real-world data to generate situation information that can be recognized by a computer, the situation information including at least one of environment and location information;  Integrating and managing the environmental status information and the location status information into separate predetermined formats, respectively; Displaying the contextual information using a graphical user interface Integrated context management method comprising a. The method of claim 1, Determining whether the converted situation information is out of a normal range, and if it is determined to be out of the normal range, generating a predetermined message having an emergency flag set and transmitting the predetermined message to a ubiquitous agent Integrated context management method to further provide a service appropriate to the situation, including. delete The method of claim 1, Determining whether the contextual information is positional status information of a dynamic object; and if it is determined that the situational information is positional information of a dynamic object, analyzing a relationship with a static object. Integrated context management method further comprising a. The method of claim 1, wherein the environment information is integrated into a predetermined format including a message identifier, a message type, an object identifier, a voltage, a temperature, an illuminance, a sound, an acceleration, a magnetic field, and a time item. The method of claim 1, wherein the location information is integrated into a predetermined format including a message identifier, a message type, an object identifier, an object's three-dimensional position coordinates (x, y, z), a viewing angle, and a time item. Information integration management method. In a context-aware service providing system for providing a service appropriate to a situation in a ubiquitous environment, Sensors to detect real-world data, The situation recognition framework for generating and managing the situation information by receiving the sensed real-world data from the sensor-The situation recognition framework, Situation that may be that the computer is analyzing the received information real-world data - and the situation information generation means for generating, wherein the status information also comprises at least one of the environmental status information and location context Situation information integrated management means for converting the environment situation information and the location situation information into a separate predetermined format, respectively, for integrated management; And home map management means for displaying the situation information using a graphical user interface; Ubiquitous agent for providing the service suitable for the situation by receiving the context information generated by the context awareness framework Situational awareness based service providing system comprising a. delete The system of claim 7, wherein the environment information is integrated into a predetermined format including a message identifier, a message type, an object identifier, a voltage, a temperature, an illuminance, a sound, an acceleration, a magnetic field, and a time item. . The method of claim 7, wherein the location information is integrated into a predetermined format including a message identifier, a message type, an object identifier, an object's three-dimensional position coordinates (x, y, z), a viewing angle, and a time item. Cognitive-based service provision system. The context-based service of claim 7, wherein the context awareness framework generates an emergency message in which an emergency flag is set and transmits it to the ubiquitous agent when the context information generated by the context information generating means is out of a normal range. system.

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