WO2011132502A1

WO2011132502A1 - Communication control device, communication control method and programme, and recording medium

Info

Publication number: WO2011132502A1
Application number: PCT/JP2011/057624
Authority: WO
Inventors: 井上裕功
Original assignee: シャープ株式会社
Priority date: 2010-04-20
Filing date: 2011-03-28
Publication date: 2011-10-27
Also published as: JP2011228960A; JP4892076B2

Abstract

A network A (10) and a network B (20) which is different from the network A (10) are VPN connected, and when devices (30a, 30b) which are connected from the network A to the network B or from the network B to the network A are operated, the names of the devices (30a, 30b) which are connected to the network A (10) and the network B (20) are displayed on device information display units (126a, 126b) which are connected to the network A (10) and the network B (20). A user who is within the network A (10) and the network B (20) selects the name of a device for transmission, and information such as the name, address and function of the selected devices (30a, 30b) is transmitted and received between an HGW A (100a) and B (100b) (S107). The information for the devices (30a, 30b) connected within each network is transmitted and received between a communication device (HGW) (100a) connected to the first network (10), and a communication device (HGW) (100b) connected to the second network (20) which is different to the first network (10); and when VPN connected, communication is carried out on the basis of the received information. Furthermore, the user can select the device information for transmission. Thus, the disclosed system can easily determine a DLNA device for communication in an other network which is VPN connected, without the provision of an RADA.

Description

COMMUNICATION CONTROL DEVICE, COMMUNICATION CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM

The present invention relates to a network device system, and more particularly to a communication control device, a communication control method, and a communication control program for controlling devices on different networks.

Recently, various electric devices are connected to a network and can communicate with other devices. There are standards such as UPnP (Universal Plug & Play) and DLNA (Digital Living Network Alliance) based on it as communication standards between devices connected to the network. However, since these are intended to be used within the home network, communication cannot be performed from outside the home network.

There is a technology called VPN (Virtual Private Network) that connects different home networks as if they were the same home network. For example, Patent Document 1 discloses a technique for connecting two networks from an external terminal by VPN.

Also, in order to obtain information on DLNA devices connected to different networks, the HGW needs to have the RADA (Remote Access Discovery Agent) function defined by the UPnP (TM) Forum, for example. However, the RADA function is not necessarily added to the HGW. In Patent Document 2, information on DLNA devices on different networks is obtained by a technique similar to the RADA function.

JP 2009-182660 JP 2008-236344 A

When connecting different networks with VPN, HGW (Home Gate Way) is required. In addition, in order to obtain information about DLNA devices connected to different networks, the HGW needs to have RADA. However, the RADA function is not necessarily added to the HGW.

In addition, assuming that there is RADA function, if there are multiple names of devices returned by researching DLNA devices, the name of the device can be arbitrarily assigned by the administrator, so for those other than the administrator It is difficult to determine which device is to communicate.

The present invention was created based on the above-described problems, and an object of the present invention is to provide a system that can easily determine a DLNA device to be communicated on another VPN-connected network without RADA.

According to an aspect of the present invention, there is provided a communication control device provided in each interface unit between a first network and a second network different from the first network, and is connected to the first network. A first transmission / reception unit configured to transmit / receive information on devices connected to each network between the communication device connected to the second network and the communication device connected to the second network; Between a first device information selection unit that selects device information to be transmitted, a first device information storage unit that stores received device information, and the first network and the second network When communication using a virtual communication path is applied, a device connected to the first network communicates with a device connected to the second network based on the received device information. Communication control device is provided that. It is preferable that the apparatus selection part is provided in the 1st network and the 2nd network. Thereby, since the transmission side selects and transmits information on devices belonging to different networks, it is possible to easily select a device with which the communication partner should communicate.

In addition, the present invention is a communication control system characterized in that the communication control device is provided in each interface unit of the first network and the second network.

Furthermore, the present invention is a first terminal provided in a third network different from the first network and the second network, and retains information on devices connected in the first network A second transmission / reception unit for transmitting / receiving device information between the communication device connected to the third network and the communication device connected to the second network, and each of the communication devices A second device information selection unit for selecting information of a device to be transmitted; a second device information storage unit for storing received device information; an address of a communication control device of the second network; A first terminal having a second communication unit for transmitting device information received from a communication device connected to the network to a communication control device connected to the first network. Which is a communication control system according to claim.

Thereby, the first terminal can operate the second network or the device connected to the first network from the second network via the first network.

The device selection unit is preferably provided in the second network and the third network. As described above, the communication device connected to the third network can transmit the device information.

Alternatively, the present invention is a first terminal provided in a third network different from the first network and the second network, and retains information on a device connected in the first network A second transmission / reception unit for transmitting / receiving device information between the communication device connected to the third network and the communication device connected to the second network, and each of the communication devices A first terminal having a second device information selection unit for selecting information on a device to be transmitted, and a second device information storage unit for storing information on the received device; A second terminal provided in a fourth network different from the network, holding information on devices connected in the second network, and a communication device connected to the first network; A third transmission / reception unit that transmits / receives the address and device information of the communication control device of the connected network to / from the communication device connected to the network 4, and device information transmitted by each of the communication devices A second device having a third device information selection unit for selecting a device, a third device information storage unit for storing received device information, and the first terminal and the second terminal. The device control system is characterized in that the device information selected by any one of the terminals is transmitted and the received terminal transmits the received device information to the network holding the device information. It is.

In this way, the device information may be transmitted via the third and fourth networks. Note that the same operation is possible even if there are more networks (N networks, N> 4).

According to another aspect of the present invention, a communication device connected to a first network and a communication device connected to a second network different from the first network are connected in each network. Transmitting and receiving information on a device that is being transmitted; selecting information on a device to be transmitted in each communication device; storing information on the device received in each communication device; and the first network. A device connected to the first network based on the received device information when a communication by a virtual communication path is applied between the device and the second network And a step of communicating with the communication control method.

A communication device connected to a second network capable of controlling a communication device connected to the first network and having information on a device connected in the first network; A step of transmitting and receiving device information between communication devices connected to a network; and a device that the communication device connected to the third network receives from the communication device connected to the second network, The method may further include transmitting to a communication device connected to the first network, and receiving the transmitted device information from the communication device connected to the first network.

A communication device connected to a third network capable of controlling a communication device connected to the first network and having information on a device connected in the first network; The communication device connected to the second network is controllable, and device information is transmitted and received between the communication devices connected to the fourth network having information on the devices connected to the second network. And a communication device connected to the fourth network transmits device information received from the communication device connected to the third network to the communication device connected to the second network; And a step of receiving the transmitted device information by a communication device connected to the second network.

The present invention may be a program for causing a computer to execute the communication control method described above, or a computer-readable recording medium for recording the program.

This specification includes the contents described in the specification and / or drawings of Japanese Patent Application No. 2010-097339, which is the basis of the priority of the present application.

According to the present invention, it is possible to transmit / receive arbitrary device information between communication devices connected to different networks, and the communication partner can easily determine the device to communicate with.

It is a principle figure which shows the difference between this invention and a prior art. It is a figure for demonstrating the outline | summary and characteristic of the control system which concern on 1st embodiment of this invention. It is a sequence diagram which shows the procedure of the process by the control system which concerns on 1st embodiment of this invention. It is a block diagram which shows the structure of HGW of the control system which concerns on 1st, 2nd, 3rd embodiment of this invention. It is a figure which shows the display part of the apparatus information selection part which concerns on 1st, 2nd, 3rd embodiment of this invention. It is a figure for demonstrating the outline | summary and characteristic of the control system which concern on 2nd embodiment of this invention. It is a sequence diagram which shows the procedure of the process by the control system which concerns on 2nd embodiment of this invention. It is a block diagram which shows the structure of the terminal of the control system which concerns on 2nd, 3rd embodiment of this invention. It is a figure for demonstrating the outline | summary and characteristic of the control system which concern on 3rd embodiment of this invention. It is a sequence diagram which shows the procedure of the process by the control system which concerns on 3rd embodiment of this invention. It is a figure for demonstrating the outline | summary and characteristic of the control system which concern on 1st Example of this invention. It is a sequence diagram which shows the process sequence by the control system which concerns on 1st Example.

In this specification, different networks have a relationship such as a home LAN in one house and a different home LAN in a different house. As it is, it refers to a network relationship in which communication between each LAN is not possible and different LAN connection devices cannot be recognized or operated.

In the following, the communication control device is the HGW 100, the communication device is the network device 30, and the terminal 200 is also referred to as a communication device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the features of the present invention will be described to clarify the differences from the technology described in the prior art. FIG. 1A is a diagram for schematically explaining the main points (conventional technology) of the technique described in Japanese Patent Application Laid-Open No. 2008-236344 (Patent Document 2) and the main points of the technique (present invention) according to the present invention. is there.

In the network device according to the prior art, an M-search (acquisition of DLNA device information on the network) is requested from the operation terminal to the proxy device on the terminal side, and is encapsulated (2)). The request is transmitted from the proxy device on the side to the proxy device on the DLNA device side via the home router and the home router on the other side via the Internet (3). This proxy device performs restoration processing (4)), an M-search request is transmitted to the DLNA device (5)), and the response (response) is passed to the proxy device (6)). The response is encapsulated (7)), sent to the proxy device on the operating terminal side via the home router, the Internet, and the home router (8)), restored in the proxy device (9)), and acquired by the operating terminal Information is sent as a response (10)). Since the M-search and its response cannot pass through the HGW (home router), the technology of Patent Document 1 encapsulates each message and sends it to a different network through the home router. Yes. The proxy device packetizes the message and restores it.

On the other hand, in the technique of the present application (Example 1), the HGW 100 requests the DLNA device 30 to perform an M-search (1)) and obtains a response (2)), and the HGW 100 sends information to the DB 111. Save ((3)). Next, the information of the device is displayed on the information terminal 126 (4)), the information transmitted from the network side having the device is selected (5)), transmitted to the HGW 100, and the HGW 100 transmits information to the other HGW. (6)). Thereby, processing such as packetization in HGW or the like becomes unnecessary.

(First embodiment)
First, an overview, processing procedure, and configuration of the connection control system according to the first embodiment of the present invention will be described. With reference to FIG. 1B, the outline | summary of the control system which concerns on 1st embodiment is demonstrated. In the control system according to the first embodiment, a network A10 (first network) and a network B20 (second network) different from the network A10 are VPN-connected, and the network A to the network B or the network B When the

devices

30a and 30b connected to the network A are operated, the names of the

devices

30a and 30b connected to the networks A10 and B20 are displayed on the device

information display units

126a and 126b connected to the networks A10 and B20. The names of the devices to be transmitted are selected by the users in the networks A10 and B20, and information such as the names, addresses, and functions of the selected

devices

30a and 30b are selected from the HGW A100a (communication device, ie, communication control device) and B100b. (S1) (S1) 7), characterized in that.

The

devices

30a and 30b have a communication function with the HGWA 100a and the HGW B 100b.

Table 1 shows an example of a data table stored in a device information database (DB) described later with reference to FIG. The device information data table includes a device name (for example, a living TV), an IP address, a function (DMR, DMP, etc.), UPnP Ver. And a manufacturer name, a model name, and a MAC address. Here, it is desirable to store the value returned by the response of the M-search which is the DLNA standard. UPnP Ver. Is a minor version when it is smaller than “1”, and there is a function that is not supported when Ver is low.

By creating and saving a table as shown in Table 1 based on the response, the network device can be specified and the network device can be operated from a different network. Table 1 is an example, and the value may increase or decrease.

The processing procedure of the control system according to the first embodiment will be described with reference to FIG. As shown in FIG. 2, a SIP (IMS) session is established to transmit / receive device information and make a VPN connection between the HGW A 100a and B 100b (steps S101 to S103). The users in the networks A and B select the device to be transmitted from the device names connected to the respective networks displayed on the device information display unit 126 obtained from the table of Table 1 (step S104). (Step S105). The information list of the selected device is created in XML or HTML format (step S106), and the users of networks A and B transmit to HGW A 100a or HGW B 100b, respectively (step S107). Then, VPN connection is performed between the HGWA 100a and the HGW B 100b (step S108). It is desirable that device information to be transmitted includes information obtained by device discovery specified by DLNA, such as name, address, and function. In addition, it is desirable that the file format to be transmitted is an XML format or an HTML format used for device discovery, which is a DLNA function. Therefore, each device needs to be able to perform general HTTP communication. With respect to steps S104 to S107, the processing of only the terminal of either HGW A 100a or HGW B 100b may be performed.

With reference to FIG. 3, a configuration example of the HGW 100 according to the first embodiment of the present invention, which is a device corresponding to the communication control device of the present invention, will be described. As illustrated in FIG. 3, the HGW 100 includes a storage unit 110, a control unit 120, and a communication unit 130. The communication unit 130 includes general interfaces and libraries for SIP (IMS) communication and HTTP communication, and performs communication with other HGWs and terminals.

The control unit 120 includes a VPN connection processing unit 121, a SIP (IMS) processing unit 122, a device information processing unit 123, a device information selection unit 124, a device information transmission unit 125, and a device information display unit 126. The SIP (IMS) processing unit 122 establishes a session in response to the SIP (IMS) connection request received by the communication unit 130. The VPN connection processing unit 121 performs VPN connection processing with the requested communication partner. The device information display unit 126 extracts the name portion from the device information stored in the device information DB 111, and displays the layout as shown in FIG.

The device information display unit 126 illustrated in FIG. 4 is provided in a configuration such as a mobile terminal or a remote control device, and includes a network device name display field 131, a check box 133, and a key unit 137. A transmission unit 135 is provided. For example, as shown in FIG. 4, when a determination button or the like is pressed in a state where the Living TV is checked, the device information of the Living TV is transmitted from the transmission unit 135. The received device information of the other party network is displayed in the network device name display field 131.

The device information display unit 126 is included in the HGW as shown in FIG. 3, but may be configured separately from the HGW 100 as long as it is a display device that can be connected to a network, such as a television or a mobile phone.

The device information selection unit 124 arbitrarily selects device information to be transmitted to the communication partner. Based on the device name displayed on the device information display unit 126, a user in the network can use a check box, a touch panel, or the like. By selecting, a list of devices to be transmitted in HTML or XML format is created by associating the selected device name with the device information registered in the device information DB 111.

The device information transmission unit 125 transmits a list of device information selected and created by the device information selection unit 124 to the communication partner. The device information processing unit 123 collects device information on the same network when the device information display unit 126 tries to extract the device name from the device information DB 111 at a fixed interval or the device information received from the communication partner. Performs processing to extract names, addresses, and functions from the list. The device information DB 111 provided in the storage unit 110 stores information collected and processed by the device information processing unit 123.

(Second embodiment)
Next, an outline, a processing procedure, and a configuration of the connection control system according to the second embodiment of the present invention will be described.

The outline of the control system according to the second embodiment of the present invention will be described with reference to FIG. In the control system according to the second embodiment, the network A10 and the network B20 are VPN-connected (S212), and the terminal A200 operates the network B20 via the network A10 or the device 30a connected to the network A10 from the network B20. In this case, the names of the devices 30a connected to the network A10 and the network B20 are displayed on the device information display unit 126 and the network B of the terminal A200 (forming a third network) having device information connected to the network A10. A user of the terminal A200 and a user in the network B20 select a device name to be displayed and transmitted on the connected device information display unit 126b, and information such as the name, address, and function of the selected device 30a is stored in the terminal A200. Between HGW and HGW B100b (S207) A200 is characterized by transmitting the device information received from the HGW B 100 b to a HGW A100a (S208).

Referring to FIG. 6, the processing procedure of the control system according to the second embodiment will be described. As shown in FIG. 6, a SIP (IMS) session is established in order to transmit / receive device information between the terminal A200 and the HGW B100b (steps S201 to S203). The user of the terminal A200 and the user in the network B20 select the device to be transmitted from the device names connected to the network A10 or the network B20 displayed on the device information display unit 126b or 126 (step S204). (Step S205). An information list of the selected device is created in XML or HTML format (step S206), and the user of terminal A200 and the user in network B20 transmit to terminal A200 or HGW または B100b, respectively (step S207). The user of terminal A200 transmits the device information received by terminal A200 from HGWHB100b to HGW A100a (step S208). Then, based on the VPN connection request of the terminal A200 (step S208), a VPN connection is made between the HGW A 100a and the HGW B 100b (step S212). The device information to be transmitted preferably includes information obtained by device discovery specified by DLNA such as name, address, and function. In addition, it is desirable that the file format to be transmitted is an XML format or an HTML format used for device discovery, which is a DLNA function. Therefore, each device needs to be able to perform general HTTP communication. With respect to steps S204 to S207, processing of only the terminal A200 or the HGWB 100b may be performed.

Note that the configuration of the HGW according to the second embodiment may be the same as the configuration of the HGW according to the first embodiment.

A configuration example of the terminal 200 according to the second embodiment will be described with reference to FIG. As illustrated in FIG. 7, the terminal 200 includes a storage unit 210, a control unit 220, and a communication unit 230. The communication unit 230 includes general interfaces and libraries for SIP (IMS) communication and HTTP communication, and performs communication with the HGW and other terminals. The control unit 220 includes a VPN connection request unit 221, a SIP (IMS) processing unit 222, a device information processing unit 223, a device information selection unit 224, a device information transmission unit 225, and a device information display unit 226.

In response to the SIP (IMS) connection request received by the communication unit 230, the SIP (IMS) processing unit 222 establishes a session. The VPN connection request unit 221 requests the HGW for a VPN connection with another HGW. The device information display unit 226 extracts the name portion from the device information stored in the device information DB 211, and displays the layout as shown in FIG.

The device information display unit 226 is a display of a mobile phone when the terminal 200 is a mobile phone, but the device information display unit 226 is provided separately from the terminal 200 if the display device can be connected to a network such as a television. It may be done. The device information selection unit 224 has a function of arbitrarily selecting device information to be transmitted to a communication partner, and a check box by a user in the network based on the device name displayed on the device information display unit 226 In response to selection on the touch panel or the like, a list of devices to be transmitted in HTML or XML format is created by associating the selected device name with the device information registered in the device information DB 211. The device information transmission unit 225 transmits a list of device information selected and created by the device information selection unit 224 to the communication partner or transfers a list of device information received from the communication partner. The device information processing unit 223, for example, collects device information connected in the network A10 when the terminal A200 is in the network A10 or when a user of the terminal A200 instructs, The process of extracting the name, address, and function from the list of device information received from. The device information DB 211 provided in the storage unit 210 stores information collected and processed by the device information processing unit 223.

According to the present embodiment, the VPN connection between different networks can be performed by transmitting the HGW address and the selected DLNA device information using a terminal outside the different network.

(Third embodiment)
Next, the outline, processing procedure, and configuration of the connection control system according to the third embodiment of the present invention will be described with reference to the drawings.

The outline of the control system according to the third embodiment will be described with reference to FIG. In the control system according to the third embodiment, a network A10 and a network B20 are connected by VPN, a terminal A200a is connected to the network B20 via the network A10, or a terminal 30200b is connected to the network A10 via the network B20. When operating 30b, the names of the

devices

30a and 30b connected to the network A10 and the network B20 are changed to the device information display unit 126a of the terminal A 200a having the device information connected to the network A10 and the devices connected to the network B20. Information displayed on the device information display unit 126b of the terminal B 200b having information, and information on the name, address, function, and the like of the selected device 30 are displayed on the terminal A 200a (which constitutes a third network different from the first and second networks). Terminal B 200b (the first to third nets The terminal A 200a transmits the device information received from the terminal B 200b to the HGWａA 100a, and the terminal B 200b transmits the device information received from the terminal A 200a to the HGW B 100b. It is characterized by that.

Referring to FIG. 9, the processing procedure of the control system according to the third embodiment will be described. As shown in FIG. 9, a SIP (IMS) session is established in order to transmit / receive device information between the terminals A 200a and B 200b (steps S301 to S303). The users of the terminals A 200a and B 200b select a device to be transmitted from device names connected to the networks A10 and B20 displayed on the device information display unit 126 (step S304) (step S305). An information list of the selected device is created in XML or HTML format (step S306), and the user of the terminal A 200a and the user of the terminal B 200b transmit the information list of the selected device to the terminal A 200a or B 200b, respectively (step S307). ). The user of terminal A200a transmits the device information received by terminal A200a from terminal B200b to HGW A100a, and the user of terminal B200b transmits the device information received by terminal B200b from terminal A200a to HGW B100b (step S308).

Then, based on the VPN connection request from the terminal A 200a and the terminal B 200b (step S308), the VPN connection is performed between the HGW A 100a and the HGW B 100b (step S312). The device information to be transmitted preferably includes information obtained by device discovery specified by DLNA such as name, address, and function. The file format to be transmitted is preferably an XML format or an HTML format used for device discovery, which is a DLNA function. Therefore, each device needs to be able to perform general HTTP communication. With respect to steps S304 to S308, only the terminal A200a or the terminal B200b may be processed.

The configurations of the HGW and terminal according to the third embodiment may be the same as the configurations of the HGW and terminal according to the first and second embodiments.

According to the present embodiment, it is possible to perform VPN connection between different networks by transmitting the address of the HGW and the selected DLNA device information using two terminals or the like outside different networks.

Hereinafter, more specific examples in the above embodiment will be described.

[Example 1]
A first example in which the second embodiment is adapted to a notification system will be described. FIG. 10 is a diagram showing the features and outline of the system. In this example, it is assumed that the sensor detects a trespasser at home. When the home server 303 provided in the home 300 receives the abnormality by the sensor 301 provided with the video camera, the home server 303 notifies the abnormality to the

terminals

310 and 320 of the destination 305 owned by the resident of the home 300 by means of e-mail or the like. (S401). The

resident terminals

310 and 320 having received the notification confirm the video of the monitoring camera 301 in the home 300 after making a VPN connection with the home. After confirming the abnormality, the terminal 340 of the reporting destination 330 such as the police or the security company is notified while the VPN connection with the home is made. Subsequently, information necessary for DLNA communication and VPN connection is transmitted and received between the

terminals

310 and 320 of the destination 305 and the terminal 340 of the report destination (S408, S409), and the resident is the terminal of the destination 305. The information of the report destination received by 310 and 320 is transmitted to the terminal 303 at home. It is desirable that the device information transmitted / received at each of the

outing destinations

310 and 320, the notification destination 330, and the home 300 is in an HTML or XML format. Therefore, each of the

terminals

303, 310, 320, and 340 In order to establish a session between the destination 305, the home 300, and the notification destination 330, it is desirable to use IMS (SIP) communication.

Then, by requesting a VPN connection from the out-of-

office terminals

310 and 320 to the home 300, the home 300 and the report destination 330 are connected to each other by the VPN based on the information held by the home 300. Further, by requesting that the video of the monitoring camera 301 be transmitted from the outside location 305 to the home 300 to the reporting destination 330, the video of the monitoring camera 301 at the home 300 can be viewed at the reporting destination 330 (340). In addition, by issuing a video playback request from the report destination 330 to the home 300, the video can be displayed on the display 303 of the home 300 from the report destination 330. In this case, the video is stored in the home 300, stored in the notification destination 330, captured using the camera (not shown) of the notification destination 330, another video distribution server ( Anything such as those provided in (not shown) may be used, but it is desirable to present something that can threaten or persuade illegal intruders. In the system described in the present embodiment, the device for transmitting and receiving may be only a device called DMR (Digital Media Renderer) that receives a playback instruction from a DMC (Digital Media Controller) and plays a moving image.

Referring to FIG. 11, the processing procedure of the control system according to the above system will be described. The server that has received the abnormality from the sensor notifies the resident's terminal that has gone out by e-mail or the like, and establishes a VPN connection between the home server and the destination terminal (steps S401 to S404). The resident confirms the abnormality of the home with the video of the monitoring camera, and then reports to the reporting destination such as the police, and transmits and receives the DMR information of the home and the reporting destination between the resident and the reporting destination (step S405- S409). The resident and reporter can select the DMR information to be sent and send it in HTML or XML format. Here, information necessary for VPN connection such as SIP (IMS) address is also transmitted and received. Therefore, each terminal needs to be able to perform general HTTP communication. The resident transmits the DMR information of the report destination received from the report destination and the information necessary for VPN connection to the server of the home 300 (step S410), and issues a VPN connection request between the home 300 and the report destination 330 (step S410). ) The home 300 and the notification destination 330 are connected by VPN (steps S411 to S414).

In addition, when the resident issues an instruction (request) to display the video of the camera of the home 300 on the DMR of the report destination 330 from the outside destination 305 terminal (step S415), the video of the surveillance camera of the home 300 is viewed at the report destination 330 (Steps S416 and S417). Further, by issuing an instruction to display a video on the DMR of the home 300 from the reporting destination 330 (step S418), the video from the reporting destination 330 can be projected on the display of the home 300 (step S419). The order of the video reproduction to the notification destination 330 (steps S415 to S417) and the video reproduction to the notification destination 330 (steps S418 to S419) is not limited to this, and the order may be changed or omitted.

As described above, the embodiments and examples of the present invention have been described. However, the embodiments and examples disclosed this time should be considered as illustrative in all points and not restrictive. is there. The scope of the present invention is defined by the terms of the claims, and includes meanings equivalent to the terms of the claims and all modifications within the scope.

For example, in the embodiment, the third network and the fourth network are shown as terminals. However, the third network and the fourth network may be configured by other information devices, and have the same configuration as the first network. Also good. Moreover, although the number of networks was shown as an example up to 4, it may be more than that.

In addition, a program for realizing the functions described in the present embodiment is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed to execute processing of each unit. May be performed. The “computer system” here includes an OS and hardware such as peripheral devices.

In addition, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.

Further, the “computer-readable recording medium” means a storage device such as a flexible disk, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the above-described functions, or may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

The present invention can be used for a communication control device.

All publications, patents and patent applications cited in this specification shall be incorporated into the present specification as they are.

10 Network A
20 Network B
Equipment connected to the 30a / b network
100a ・ b HGW A, HGW B
110 Memory
111 Device information DB
120 Control unit
121 VPN connection processor
122 SIP (IMS) processing unit
123 Device Information Processing Department
124 Device information selector
125 Device information transmitter
126 Device information display section
130 Communications department
200a ・ b Terminal A, Terminal B
210 Memory
211 Device information DB
220 Control unit
221 VPN connection request section
222 SIP (IMS) processor
223 Equipment Information Processing Department
224 Device information selector
225 Device information transmitter
226 Device information display
230 Communications department

Claims

A communication control device provided in each interface unit of a first network and a second network different from the first network,
A first transmission / reception unit that transmits / receives information on devices connected to each network between the communication device connected to the first network and the communication device connected to the second network. When,
A first device information selection unit for selecting information of a device transmitted by each of the communication devices;
A first device information storage unit for storing received device information;
When communication using a virtual communication path is applied between the first network and the second network, a device connected to the first network based on the received device information is the second network. A communication unit that communicates with a device connected to
A communication control apparatus comprising:
A communication control system according to claim 1, wherein the communication control device according to claim 1 is provided in each interface section of the first network and the second network.
Furthermore, the first terminal is provided in a third network different from the first network and the second network, and holds information on devices connected in the first network, and A second transmission / reception unit that transmits and receives device information between the communication device connected to the network 3 and the communication device connected to the second network;
A second device information selection unit for selecting information of a device transmitted by each of the communication devices;
A second device information storage unit for storing received device information;
Second communication for transmitting the address of the communication control device of the second network and the device information received from the communication device connected to the second network to the communication control device connected to the first network A first terminal having a unit;
The communication control system according to claim 2, further comprising:
Furthermore, the first terminal is provided in a third network different from the first network and the second network, and holds information on devices connected in the first network, and A second transmission / reception unit that transmits and receives device information between the communication device connected to the network 3 and the communication device connected to the second network;
A second device information selection unit for selecting information of a device transmitted by each of the communication devices;
A first terminal having a second device information storage unit for storing received device information;
A second terminal provided in a fourth network different from the first to third networks, holding information on devices connected in the second network, and storing in the third network A third transmission / reception unit for transmitting / receiving an address and device information of the communication control device of the connected network between the connected communication device and the communication device connected to the fourth network; A second terminal having a third device information selection unit that selects device information transmitted by the communication device; and a third device information storage unit that stores information on the received device;
The device information selected by one of the terminals is transmitted between the first terminal and the second terminal, and the device that has received the network on which the receiving terminal holds the information of the device The apparatus control system according to claim 2, wherein the information is transmitted.
Transmitting and receiving information on devices connected in each network between a communication device connected to the first network and a communication device connected to a second network different from the first network; ,
Selecting information on devices to be transmitted in each of the communication devices;
Storing device information received in each of the communication devices;
When communication using a virtual communication path is applied between the first network and the second network, a device connected to the first network based on the received device information is the second network. Communicating with a device connected to
The communication control method characterized by including.
A communication device connected to a third network capable of controlling a communication device connected to the first network and having information on a device connected in the first network; and the second network Transmitting and receiving device information between connected communication devices; and
A communication device connected to the third network transmits device information received from the communication device connected to the second network to the communication device connected to the first network;
Receiving the transmitted device information by a communication device connected to the first network; and
The communication control method according to claim 5, further comprising:
A communication device connected to a third network capable of controlling a communication device connected to the first network and having information on a device connected in the first network; and the second device Transmitting and receiving device information between communication devices connected to a fourth network capable of controlling a communication device connected to the network and having information on devices connected in the second network; ,
A communication device connected to the fourth network transmitting device information received from the communication device connected to the third network to a communication device connected to the second network;
The communication device connected to the second network receives the transmitted device information; and
The communication control method according to claim 5 or 6, further comprising:
A communication control program causing a computer to execute the communication control method according to any one of claims 5 to 7.
A storage medium storing the communication control program according to claim 8.