KR100578549B1 - Composite Service Discovering System for Wires/Wireless Communications and Method thereof - Google Patents

Abstract

The present invention relates to a method for automatically recognizing and executing a composite service in a wired / wireless network environment. The present invention relates to a service method using a system for recognizing a composite service in a wired / wireless network environment and performing the service. Defining a complex service and storing the complex service in a complex service information store; Enumerating the composite service list defined in the first step according to the service request of the user, and allowing the user to select the composite service from the service list; Loading information about the complex service selected by the user from the complex service information store to generate an individual service list and an individual service relationship list, and discovering individual services from the list; Establishing a network connection with the discovered individual services and performing the corresponding service; A fifth step of automatically recognizing and performing a composite service while repeating steps 3 and 4 for the individual services; And a sixth step of notifying a user of an execution result of the complex service performed in the fifth step through an application module. The routine service may be automatically recognized and performed in a wired or wireless network environment.

 Complex service automatic recognition, service discovery module, complex service definition module,

Description

Complex Service Automatic Recognition / Performance System in Wired / Wireless Network Environment and its Method {Composite Service Discovering System for Wires / Wireless Communications and Method             

1 is an overall network configuration for initiating complex service automatic recognition / performance according to the present invention,

2 is a block circuit diagram showing a service request device according to the present invention;

3 is a flow chart showing the overall procedure of the service request device according to the present invention;

4 is a view showing an example of a relationship type between individual services constituting a composite service in accordance with the present invention;

5 illustrates an example of complex service information used in connection with the present invention;

6 is a flowchart illustrating an individual service network connection procedure applied according to the present invention;

7 is a flowchart illustrating a procedure of coordination of a composite service applied according to the present invention.

Explanation of symbols on the main parts of the drawings

10: service request device 20: wireless access point

30: service providing device 40: local area network

11: complex service information store 12: application module

13: Complex Service Definition Module 14: Complex Service Coordination Module

15: service discovery module 16: network management module

The present invention relates to a system and a method for enabling a user to easily receive a dynamically required service by using nearby devices anytime, anywhere in a wired / wireless network environment, and more specifically, individual services through interaction with the user. Defining the ordering relationship existing in a formal form, and the service request device automatically recognizes / implements complex services in a wired / wireless network environment that enables the service requesting device to automatically recognize and execute services according to the service relationship. A system and method thereof are provided.

Recently, with the trend toward miniaturization and portability of computer terminals and peripheral devices, digitalization of information appliances has been rapidly progressing. Currently, smart phones, PDAs (Personal Digital Assistance), mobile phones, etc. are widely used as mobile communication information devices as well as notebooks. In addition, as home appliances such as audio, cameras, set-top boxes, refrigerators, and TVs are digitized, demand for easy recognition and control of these devices is increasing through the construction of home networks in homes.

As devices connect to a wired or wireless network, a user needs a communication method for discovering and controlling services currently needed through the network anytime and anywhere.

The UPnP forum proposed UPnP as part of the Network Plug & Play. UPnP is largely composed of a control point and a device. The device is a side providing a service, and the control point is a side requesting and controlling a required service.

The method of describing services provided by UPnP is based on XML (eXtensible Markup Language), and includes not only model name and manufacturer information but also service operation, parameters and variables.

The Bluetooth SIG proposed the Service Discovery Protocol (SDP) as a protocol for discovering Bluetooth devices. SDP communicates by exchanging transaction (request / response) messages between client / server and provides search function or service browsing function by service class or service attributes. Services are described by service class and service record. Service class includes device category (printer, storage device) to distinguish service, and service record includes attributes of corresponding service such as model name and supported protocol.

 The Internet Engineering Task Force (IETF) has proposed a Service Location Protocol (SLP) based on the RFC2608 specification. The communication model of the SLP is composed of three elements, a user agent (UA), a service agent (SA), and a directory agent (DA), and the DA may be omitted. In addition, the standard service discovery protocols are proposed, such as the Zini proposed by Sun Microsystems and the Salutation protocol proposed by the Salutation consortium.

However, the proposed schemes have a problem in that, when several individual services are composed with complex correlations, annoying due to excessive user interaction may occur in the process of discovering and using / controlling services. .

For example, if a user wants to receive video service using peripheral devices in an unfamiliar environment, the service discovery process must be made individually by selecting appropriate services such as media servers, speakers, displays, and amplifiers. You must go through a cumbersome procedure.

The present invention is to solve the problems of the prior art, and in detail, in a wired and wireless network environment, a user can automatically recognize a complex service and automatically perform a procedure so that the user can easily use the service by using available resources around at anytime and anywhere. The purpose of the present invention is to provide a system and method for automatic recognition and execution of complex services in wired and wireless network environments.

In the wire / wireless network environment of the present invention for achieving the above object, the composite service automatic recognition / execution system is a system for recognizing a complex service in a wired / wireless network environment and performing the service, wherein the complex service is defined according to a user's correlation. A composite service information store in which service information is stored; An application module for storing an application program for recognizing a complex service requested by a user in a wired / wireless network environment and executing the service; A composite service definition module for defining composite service information and storing the composite service information in the composite service information storage unit; A complex service coordination module that loads complex service information stored in the complex service information storage, finds a service sequentially or in parallel according to a specified service relationship for individual services, and executes a designated command; A service discovery module for discovering individual services from the individual service list and the service relationship list generated by the complex service coordination module; And a network management module which obtains protocol and data format information to be used for network connection of individual services from the complex service coordination module and establishes a connection with the service providing device.

In addition, the composite service automatic recognition / execution method according to the present invention, in a service method using a system for recognizing a complex service in a wired and wireless network environment and performing the service, defining the complex service through the interaction with the user and composite A first step of storing in the service information storage; Enumerating the composite service list defined in the first step according to the service request of the user, and allowing the user to select the composite service from the service list; Loading information about the complex service selected by the user from the complex service information store to generate an individual service list and an individual service relationship list, and to find individual services from the list; Establishing a network connection with the discovered individual services and performing the corresponding service; A fifth step of automatically recognizing and performing a composite service while repeating steps 3 and 4 for the individual services; And a sixth step of notifying a user of an execution result of the complex service performed in the fifth step through an application module. The routine service may be automatically recognized and performed in a wired or wireless network environment.

In the first step of defining the composite service, the user can more easily define the composite service through a user interface, and then automatically generate the composite service in a standardized representation or describe the composite service information in a standardized representation by the user. Can be stored on storage.

The fourth step of establishing a network connection may include obtaining protocol and data format information to be used in an individual service from a complex service coordination module; Requesting to establish a network connection with an individual service providing device according to the received information; Receiving a connection response message from the service providing device to complete the connection establishment; Requesting a command to be executed to the connected individual service providing device; And notifying the composite service coordination module of the service enforcement result after receiving a response message for service enforcement from the individual service providing device.

In the fifth step of recognizing and performing the composite service, the service is sequentially and / or parallelly discovered according to a specified service relationship from the individual service list and the individual service relationship list generated by loading the composite service information and connected to the service providing device. Requesting; Synchronizing services by operating a timer after requesting connection with the service providing device; And if there is no response from a specific service or the service is not performed even after the time set by the timer expires, processing according to the exception handling policy.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram showing an overall network configuration for performing a complex service in a wired or wireless network environment according to the present invention.

Referring to the drawings, the present invention requires a service request device 10 for recognizing service request information of a user and performing the service in order to start a complex service in a wired or wireless network environment.

The service request device 10 is connected to the service providing device 30 wirelessly via the wireless access point 20 or wired via the local area network (LAN) 40 according to the service request information of the user to provide a service. Can be provided.

In the present invention configured as described above, the service request device 10 for complex service processing is connected to a wireless network, and the service providing device 30 may exist in the same network, or the service providing device 30 in a local area network (LAN). ) May be present.

The service request device 10 according to the present invention may be any information device that supports a wireless communication interface for receiving a complex service in a wired or wireless network environment.

The information device may include, for example, a computer terminal, an information appliance, a laptop or a mobile communication information device such as a smartphone, a personal digital assistant (PDA), a mobile phone, and the like. Of course, even in the case of digitized home appliances such as set-top boxes, refrigerators, TVs, etc., the composite service to be disclosed in the present invention may be received.

2 is a block diagram specifically illustrating a service request device for recognizing and performing a complex service in a wired and wireless network environment according to the present invention.

Referring to FIG. 2, the service request device in which the entirety is indicated by the reference numeral 10 includes a complex service information storage 11 storing complex service information defined according to a correlation of a user, and a complex service requested by a user in a wired or wireless network environment. The application module 12 storing the application program for recognizing and performing the service, the complex service definition module 13 defining the complex service information and storing the complex service information in the complex service information storage 11, and storing the complex service information. A composite service coordination module 14 which loads the composite service information stored in the machine 11, finds the service sequentially or in parallel according to the specified service relationship for the individual services, and executes the specified action, Individual service from the individual service list and the service relationship list generated in the complex service coordination module 14 The service discovery module 15 for discovering and the network management module 16 for acquiring protocol and data format information to be used for network connection of individual services from the complex service coordination module 14 and establishing a connection with a service providing device. .

The service request device 10 of the present invention configured as described above stores the information defined by the interaction with the user in advance in the composite service information storage 11 through the composite service definition module 13.

In this state, when the user requests the complex service through the application module 12, the complex service coordination module 14 loads the complex service information stored from the complex service information storage unit 11 to the individual services. Discovers the service sequentially and in parallel according to the specified service relationship and executes the specified action.

Here, the discovery of the actual individual service is performed through the service discovery module 15, and the network connection setting with the discovered individual service is performed through the network management module 16.

The network management module 16 obtains protocol and data format information to be used when connecting individual services from the complex service coordination module 14 to set up and perform an actual connection. When the execution of the final service is completed according to the specified service relationship, the composite service coordination module 14 notifies the application module 12 of the result of performing the composite service.

Hereinafter, referring to FIG. 3, a procedure for performing a complex service according to the present invention will be described.

Referring to FIG. 3, the present invention defines a complex service in a standardized manner as required by the user and stores the complex service in the complex service information storage 11 under the control of the complex service definition module 13 (S301). .

In the state where the composite service is defined and stored in the normalized manner as illustrated in step 301, when the user requests the composite service through the service request device 10, the application module 12 recognizes the service request information of the user, The recognized service request information is transmitted to the composite service coordination module 14 (S302).

The composite service coordination module 14 loads the corresponding composite service information requested by the user from the composite service information storage 11 (S303), and lists the individual services constituting the composite service and the causal relationship between the individual services or A service relationship list such as parallel relationship is generated (S304).

The service discovery module 15 discovers individual services according to the specified service relationship from the service relationship list generated in step 304 (S305), and the found individual services are provided via wired or wireless service through the wireless access point 20. Under the control of the device 30 and the network management module 16, a network is set up to receive a service (S306).

The communication method used by the network management module 16 for individual service discovery may use a conventionally proposed service discovery protocol such as UPnP, SLP, Jini, Salutation, or define a communication protocol independently. Most existing service discovery protocols proceed with the process of service registration, service request, and service provision. Examples of service information provided through this process include manufacturer related information, model name, serial number, service type, command and parameter information used.

In step 306, the network management module 16 establishes a connection with the service providing device 30 to perform the service for the individual service found by the service discovery module 15, and when the service execution is completed, the service discovery module In step 15, it is checked whether the following individual service exists (S307).

If there is another individual service by the service discovery module 15, the individual service of the next order is selected (S308) and the individual service is found from the service relationship list generated in step 304, and the subsequent process is repeated.

In step 307, when all services in the composite service are completed and no more individual services are found, since all individual services in the composite service are completed, the service discovery module 15 indicates that the individual services no longer exist. 14), the composite service coordination module 14 notifies the application module 12 of the completion of the composite service and ends (S309).

4 conceptually illustrates examples of various types of relationships of individual services within a composite service defined in accordance with the present invention.

Referring to FIG. 4, the present invention denotes reference numerals S1, S2,..., Which refer to individual services, and " S1-> S2 " It means a relationship in which another individual service S2 can be performed, that is, a relationship of "happened before". Here, the individual services "S1, S2" means that the "concurrent" relationship that S1 and S2 can be performed in parallel. Thus, FIGS. 4B and 4C illustrated in FIG. 4 sequentially illustrate other individual services for the relationship as described in FIG. 4A when there are many individual services, for example S1 through S6, when there are many individual services. Or may be performed in parallel.

FIG. 5 is a diagram for explaining an example of complex service information including an example of the type shown in FIG. 4. Referring to the drawings, the present invention may include, for example, complex service information, such as a name of a complex service, a list of individual services, a relationship between individual services, an exception handling policy, and the like.

Each service list may include an individual service name, a type of an individual service, an action to be performed, and a type or value of a parameter to be delivered. In addition, the individual service relationship may be expressed in the following format as shown in FIG.

 serviceName_1 [(actionName_1)] relation_1, serviceName_2 [(actionName_2)] relation-2, ...

In the above notation, serviceName_1, serviceName_2, .. are individual service names, and actionName_1, actionName2, ... may be omitted as an action name to be performed in the individual service. If omitted, it simply means individual service recognition and connection establishment.

In addition, relation_1, relation_2, .. are symbols that designate a relationship between individual services. The causal relationship may be represented by "->", and the parallel relationship may be represented by ",".

An exception handling policy is a policy when an exception occurs while performing a complex service, and there may be a policy such as "Abort" or "Ignore". The "Abort" policy is to terminate the composite service execution itself when an exception or error occurs while performing the individual service, and in the case of the "Ignore" policy, even if the individual service execution with the corresponding error is not completed It means a policy that can proceed individual service procedures.

6 is a flowchart illustrating a process performed by the network management module according to the present invention.

Referring to the drawings, the present invention, if an individual service is found by the service discovery module 15, the network management module 16 is a protocol for service connection from the complex service coordination module 14 for the individual service found And network connection information such as a data format (S601).

In addition, the network management module 16 requests a network connection setting to the individual service providing device 30 by using the above information (S602), and sends a connection response message from the individual service providing device 30 by the connection setting request. If received, the processing is completed to complete the connection setup (S603).

Thereafter, the network management module 16 requests an action to be performed to the connected service providing device 30 (S604), and responds to service execution from the service providing device 30 by the service request command. When receiving the message, after performing the service according to the defined procedure (S605), and notifies the application module 12 via the composite service coordination module 14 (S606).

7 is a flowchart illustrating a process performed by a complex service coordination module according to the present invention.

Referring to the drawings, the composite service coordination module 14 according to the present invention loads standardized complex service information from the complex service information storage 11 according to a service request of a user transmitted through the application module 12 (S701). In step S702, an individual service list and a service relationship list are internally generated.

The service discovery module 15 discovers individual services by referring to the service relationship list generated by the complex service coordination module 14 (S703) and requests a connection establishment request to the network management module 16 for the found individual services ( After the operation S704, a timer (not shown) is operated to synchronize the services (S705).

Then, when receiving the individual service connection completion notification from the network management module 16 within the time set in the timer (S706), the composite service adjustment module 14 stops the timer (S707), by the service discovery module 15 If a new individual service is found (S708), if another individual service exists, the process from step 703 is repeated, and if the individual service does not exist, the process ends.

On the other hand, the present invention, in step 706, when the time set by the timer in the state in which the individual service connection is not completed (S709) expires, and does not receive the individual service connection completion notification from the network management module 16, the composite service The adjustment module 14 determines the next procedure according to the exception processing policy (S710).

If the exception handling policy is "Abort", the execution of the composite service is terminated immediately. Otherwise, the next individual service procedure is performed. If the next individual service exists, the process is repeated again from step 703. If the execution of all the individual services is completed, the service module is notified of the completion of the service and the application module 12 ends.

As described above, the composite service automatic recognition / implementation system and method of the present invention automates a procedure of discovering and performing individual services constituting the composite service, so that the user omits the service request for the individual service anytime and anywhere. Can be easily used by a simple procedure.

What has been described above is just one embodiment described in the system and method for automatically detecting / implementing a composite service in a wired / wireless network environment according to the present invention, and the present invention is not limited to the above-described embodiment, and the following claims Without departing from the gist of the present invention claimed in the present invention, anyone of ordinary skill in the art will have the technical idea of the present invention to the extent that various modifications can be made.

Claims (7)

In a system for recognizing a complex service in a wired and wireless network environment and performing the service, A composite service information store storing composite service information defined according to a correlation of a user; An application module for storing an application program for recognizing a complex service requested by a user in a wired / wireless network environment and executing the service; A composite service definition module for defining composite service information and storing the composite service information in the composite service information storage unit; A complex service coordination module that loads complex service information stored in the complex service information storage, finds a service sequentially or in parallel according to a specified service relationship for individual services, and executes a designated command; A service discovery module for discovering individual services from the individual service list and the service relationship list generated by the complex service coordination module; And A network management module for acquiring protocol and data format information to be used for network connection of individual services from the complex service coordination module and establishing a connection with the service providing device; Complex service automatic recognition / performance system in a wired or wireless network environment, characterized in that it comprises a. In the service method using the system of claim 1 for recognizing a complex service in a wired and wireless network environment and performing the service, A first step of defining a complex service through interaction with a user and storing the complex service in a complex service information store; Enumerating the composite service list defined in the first step according to the service request of the user, and allowing the user to select the composite service from the service list; Loading information about the complex service selected by the user from the complex service information store to generate an individual service list and an individual service relationship list, and discovering individual services from the list; Establishing a network connection with the discovered individual services and performing the corresponding service; A fifth step of automatically recognizing and performing a composite service while repeating steps 3 and 4 for the individual services; And And a sixth step of notifying a user of an execution result of the composite service performed in the fifth step through an application module. The method of claim 2, wherein the first step of defining the composite service is The user can easily define a complex service through a user interface, and then automatically generate it using a standardized expression method, or write a complex service information using a standardized expression method and store the complex service information in a disk storage device. How to automatically recognize / execute complex services in network environment. The method of claim 3, wherein the complex service information is It consists of information such as the name of a complex service, a list of individual services, relationships between individual services, and exception handling policies.The list of individual services includes the name of the individual service, the type of individual service, the command to be executed, and the type of parameter or parameter to be passed. Method for automatic recognition and execution of complex services in a wired or wireless network environment, characterized in that it comprises a value. The method of claim 2, wherein the fourth step of establishing the network connection, Obtaining protocol and data format information to be used in an individual service from the complex service coordination module; Requesting to establish a network connection with an individual service providing device according to the received information; Receiving a connection response message from the service providing device to complete the connection establishment; Requesting a command to be executed to the connected individual service providing device; And Receiving a response message for the service enforcement from the individual service providing device and notifying the composite service coordination result of the service enforcement result; Comprehensive service automatic recognition and execution method comprising a. The method of claim 2, wherein the fifth step of recognizing and performing the complex service, Finding a service sequentially or in parallel according to a specified service relationship from the individual service list and the individual service relationship list generated by loading the complex service information and requesting connection with the service providing device; Synchronizing services by operating a timer after requesting connection with the service providing device; And If there is no response from a specific service or the service is not performed even after the time set by the timer expires, processing according to the exception handling policy; composite service automatic recognition / performance method in a wired and wireless network environment, characterized in that consisting of. The method of claim 6, wherein the exception handling step, If the exception handling policy is "Abort", the composite service execution is terminated; otherwise, the following individual service procedure is performed, the composite service automatic recognition / execution method in a wired and wireless network environment.

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