KR20080000310A - System for sharing information between home-network and method thereof - Google Patents

Abstract

An information sharing system and method between home networks and information sharing generating method are provided to distribute contents provided only at homes to several places by using a middleware technique. A home gateway(210) provides a connection between a home appliance and an external Internet and provides information about whether appliances belonging to a corresponding home gateway share and contents sharing information. A super peer(220) receives the information about whether appliances share and the contents sharing information, stores them in a database, and provides a contents sharing list when arbitrary contents are desired to be shared by a different home gateway. A list database(221) stores a list of whether appliances and contents share. A sharing processing unit(222) writes whether to share or not in the list database(221) according to a user's selection as to whether information is shared with the exterior. A sharing determining unit(223) determines a written state as to whether an arbitrary appliance and contents are shared with the exterior from the list of the list database(221).

Description

System for sharing information between home-network and method

1 is a schematic diagram of an information sharing system by a super peer in a home network to which the present invention is applied.

FIG. 2 is a block diagram illustrating in detail the configuration of the super peer shown in FIG. 1.

FIG. 3 is a table showing a database of a list of super peers shown in FIG. 2.

4 is a flowchart illustrating a method for registering information sharing between home gateways according to a preferred embodiment of the present invention.

5 is a flowchart illustrating a process of receiving arbitrary content from outside according to a preferred embodiment of the present invention.

6 is a diagram showing a stack of Universal Plug and Play (UPnP) protocols.

7 is a data format diagram illustrating a form in which a security field is added to an SSDP.

* Brief description of symbols for the main parts of the drawings *

210: home gateway 220: super peer

221: list database 222: sharing status processing unit

223: share determination unit

The present invention relates to an information unique technology, and more particularly, to an information sharing system and a method for sharing information between home networks, which facilitates information sharing by placing a super peer in a home network.

With the development of communication equipment and information appliances, technologies for ensuring the interoperability of home devices are emerging.

Among these technologies, UPnP (Universal Plug and Play) is a technology that enables communication between information appliances connected to a network without complicated setting procedures, and enables other devices to automatically find a service of one device. When UPnP is used, the general user simply connects the device to the network, and the devices connected to the network provide a means to automatically discover and control newly added devices. Can be reduced.

UPnP is used when new devices are added or removed between devices. They are very dependent on the Internet protocol but independent of the operating system and programming language. In addition, since the UPnP is positioned on the transport layer and the physical layer, it may correspond to different types of lower layer protocols.

However, since middleware such as UPnP is applied to home networks, the purpose of guaranteeing interoperability between devices is insufficient.

In summary, the conventional middleware applied to the home network enables communication between all devices existing in the home based on the broadcast, but access to different networks, that is, external networks, is not considered.

In addition, since there are no measures for security factors, there is room for information to be indiscriminately escaped from outside of the home network.

The first object of the present invention for solving the above problems is to provide an information sharing system between home networks.

In addition, a second object of the present invention for solving the above problems is to provide a method for generating information sharing between home networks.

In addition, a third object of the present invention for solving the above problems is to provide a method of sharing information between home networks.

The information sharing system between home networks according to the first object of the present invention for achieving the above object provides a connection between home appliances and the external Internet, and provides information on whether the devices belonging to the home gateway are shared or not. A home gateway; And a super peer that receives device sharing information and content sharing information from the home gateways, stores the information in the database, and provides a content sharing list when sharing arbitrary content from another home gateway.

The super peer includes a list database that stores a list of whether the device and the content is shared; A sharing whether processing unit for writing sharing information into the list database according to a user's selection of sharing information with the outside; And a sharing availability judging unit which determines a writing state of whether any device and contents are shared with the outside in the list of the list database. The list database preferably creates a device list and a content list in a separate table form.

According to a second aspect of the present invention, there is provided a method of generating information sharing between home networks, the method of creating a device and content sharing information generation list in a home gateway, wherein the device is connected to the home gateway. Searching for contents of devices connected to the home gateway; Determining whether to share the corresponding item for the device and the content; And if it is determined that the corresponding item is shared, creating the shared item field of the list database as being shared.

In the step of determining whether to share the corresponding item for the device and the content, if it is determined that the corresponding item is not shared, it is characterized in that the sharing of the corresponding item in the list database in the field whether or not to be shared.

In the determining of whether to share the corresponding item for the device and the content, if it is determined that the corresponding item is not shared, the step of notifying whether to share the corresponding item in the list database in the list database is omitted. It is done.

In addition, the home gateway may periodically notify the device and the content sharing list to the super peer after the step of writing the corresponding field of the list database as being shared.

In the method of sharing information between home networks according to the third object of the present invention for achieving the above object, in a method of sharing arbitrary content of an external home gateway, arbitrary content is requested to any home gateway, and the corresponding home gateway Determining whether the requested content exists in the; If it is determined that the requested content does not exist in the home gateway, requesting the content from a super peer managing the home gateway; And if it is determined that there is a list of the corresponding content in the super peer, transmitting the corresponding content from the home gateway including the corresponding content to the home gateway that has requested to share the corresponding content.

If it is determined that the requested content exists in the home gateway, the content is provided to the device that requested the content.

In addition, in the step of requesting the corresponding content to the super peer managing the home gateway, if it is determined that there is no list of the corresponding content, the corresponding content is individually searched through a peer-to-peer (P2P) network.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

The present invention is characterized by incorporating a security system into a home network system.

Therefore, based on OSGi (Open Service Gateway initiative), it enables dynamic management of services and connects Internet network and home network.

OSGi is a standard proposed by the OSGi organization for the standard method of connecting Internet equipment such as devices and security systems. By creating gateway software based on open Java embedded server, it has the function to provide multiservices with high security to devices or facilities regardless of platform.

On the other hand, devices inside the home network are connected to each other by using middleware such as UPnP, and the devices and contents located in the external network are recognized as virtual terminals so that they can be flexibly provided at home without considering the internal and external networks. .

In order to do this, the framework installed in the home gateway serves to inform the outside of the authorized contents and devices in the home, and registers as a device with the list of contents and devices exported from other home gateways except itself. Do it.

Device and content can be selected to allow sharing or non-sharing items so that the user transmits only the device and content to the outside, and unauthorized content is shared only in the home.

Embodiments will be described with reference to the drawings to support the above description.

1 is a schematic diagram of a home network system to which the present invention is applied.

1, the home network system according to the present invention is a home network system capable of sharing information with external devices can communicate various information appliances (231, 23N) and the information appliances (231, 23N) in the home with the outside The home gateway 210, and the super peer 220 providing a list of whether the home gateways 210 share content and / or devices.

The super peer 220 may be included in the home network, or may be disposed at the center with the home gateway as a peer regardless of the home network.

In FIG. 1, the super peer 220 is included in the home network for convenience.

Hereinafter, the configuration between the super peer 220 and the home gateway 210 will be described in detail. FIG. 2 is a block diagram illustrating in detail the configuration of the super peer shown in FIG. 1.

Referring to FIG. 2, the super peer 220 determines whether the list database 221 stores a list of information such as a device and content in a table form, and whether the items are shared with the outside for each item. It includes a sharing determination unit 223 and a sharing processing unit 222 for initially writing whether or not to share each item by the user's selection.

FIG. 3 is a table showing a database of a list of super peers shown in FIG. 2.

As shown in FIG. 3, the list database 221 can be largely divided into device groups and content groups, and whether or not to share information with the outside for each number (actually, the device serial number is written) in the device group is determined. The content group is also displayed whether or not the content group is shared for each content item in the same manner as the device.

In the case where the sharing is not written as in the case of device 3 of FIG. 3, it is preferable to set the sharing not to the default value.

4 is a flowchart illustrating a method for registering information sharing between home gateways according to a preferred embodiment of the present invention.

Referring to FIG. 4, first, the framework of the home gateway searches and collects a list of various devices in the home, a function, and a content list (S10).

Since it is necessary to separate the information to be shared from the outside from the collected list, it is determined whether to share the device or content of the current entry (S12). Write (S14).

Subsequently, when the preparation of the device and the content list to be shared is completed, the list is periodically notified to the super peer so that the list can be viewed from the outside (S16).

In addition, the super peer stores a list of function services, contents, and the like, of the devices that can be provided (shared) by the home gateway connected to the user through the query process.

5 is a flowchart illustrating a process of receiving arbitrary content from outside according to a preferred embodiment of the present invention.

Referring to FIG. 5, when a user requests arbitrary content (S20), first, it is determined whether there is a requested content in a home environment, that is, a corresponding home gateway (S22).

If it is determined in S22 that the requested content exists in the corresponding home gateway, the corresponding content is provided to the requested device (S24). If the user chooses to print the content, the content is delivered to the print processor or an application executing the corresponding function is executed.

If it is determined in S22 that the content is not in the home gateway, the content may be included in the list database to a super peer centrally managing the home gateway since the content may exist in another peer belonging to the same home network group. It is requested whether or not (221) (S26).

Subsequently, it is determined from the list database 221 of the super peer 200 whether there is content that is allowed to be shared (S28), and if it is determined that the content is provided with permission to be shared in the list of super peers, the super peer 200 ) Transmits the content to the home gateway that requested the content (S29).

If it is determined that there is no corresponding content in the list of super peers in S28, a search is performed one-to-one through a peer to peer (P2P) network (S30).

6 is a diagram showing a stack of Universal Plug and Play (UPnP) protocols. Referring to FIG. 6, the protocol used for UPnP includes a UPnP-related supplier, a UPnP forum working committee, and a UPnP device structure on the upper layer. Define the specifications for UPnP device vendors add data about their products, such as model names and URLs. UPnP is built on top of HTTP and its derivative protocols, and HTTPU and HTTPMU are HTTP derivative protocols defined for the delivery of messages based on UDP / IP.

Simple Service Discovery Protocol (SSDP) defines how a network service is discovered on the network. The SSDP defines how the control point discovers the desired resources on the network and how devices notify themselves that they are available on the network.

Therefore, the present invention uses the SSDP to check the availability and content of the devices connected to the other home gateway through the home gateway.

7 is a data format diagram illustrating a form in which a security field is added to an SSDP.

In addition, as shown in FIG. 7, the SSDP used for content sharing inserts a security field F4 into the data format to ensure the security of information.

As described above, the home network system according to the present invention enables the content sharing provided only in the home to be distributed to several places using only one place by using middleware technology.

Claims (10)

A home gateway that provides access to home appliances and the external Internet and provides information on whether to share devices and contents of devices belonging to the home gateway; And Home network including a super peer that receives device sharing information and content sharing information from the home gateways, stores them in a database, and provides a content sharing list when sharing arbitrary content from another home gateway. System for sharing information. The method of claim 1, wherein the super peer A list database for storing a list of whether the device and the content are shared; A sharing whether processing unit for writing sharing information into the list database according to a user's selection of sharing information with the outside; And And a sharing availability judging unit for judging a writing state of whether any device and contents are shared with the outside in the list of the list database. The method of claim 1, wherein the list database is Information sharing system between home networks, characterized in that the device list and the content list in a separate table form. In the method of creating a device and content sharing information generation list in the home gateway, Searching contents of devices connected to the home gateway and devices connected to the home gateway; Determining whether to share the corresponding item for the device and the content; And And if it is determined that the item is to be shared, creating the shared information field of the list database as being shared. The method of claim 4, wherein in the determining of whether to share the corresponding item about the device and the content, If it is determined that the item is not shared, the information sharing generation method between the home networks, characterized in that the non-sharing in the field to share the item in the list database. The method of claim 4, wherein in the determining of whether to share the corresponding item about the device and the content, If it is determined that the item is not to be shared, the step of writing whether or not to share the corresponding item in the list database in the list database is omitted. The method of claim 4, wherein after the writing of the corresponding item in the list database as being shared, The home gateway is a method of creating information sharing between home networks, characterized in that the device to periodically notify the list of whether to share the device with the super peer. In the method of sharing any content of the external home gateway, Requesting arbitrary content to any home gateway to determine whether the requested content exists in the corresponding home gateway; If it is determined that the requested content does not exist in the home gateway, requesting the content from a super peer managing the home gateway; And If the super peer determines that there is a list of the content, the information sharing method between the home network comprising the step of transmitting the content from the home gateway containing the content to the home gateway requesting to share the content. The method of claim 8, wherein if it is determined that the requested content exists in the home gateway, The information sharing method between the home network, characterized in that the content is provided to the device requesting the content. The method of claim 8, wherein in the step of requesting the content to the super peer managing the home gateway, when it is determined that there is no list for the content, A method of sharing information between home networks, characterized in that the content is retrieved individually through a peer to peer (P2P) network.

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