JP6515688B2 - Gateway device - Google Patents

Description

  The present invention relates to a gateway device and a network system including the gateway device.

  Conventionally, there has been conceived a system capable of operating an apparatus or the like connected in the home network from outside the home network. In the prior art (Patent Document 1), there is disclosed a method of controlling a device connected in a home network from a mobile phone outside the home network.

Japanese Patent Application Publication No. 2003-179699

RFC 3550

  In the system of the prior art (patent document 1) which can operate the device connected in the home network from outside the home network, the information of the device connected in the home network is registered in the mobile telephone gateway or the WEB gateway of the Internet service provider. There is a need. Along with this, there is a problem that it is not possible to flexibly cope with the addition of a device in the home network. An object of the present invention is to obtain a gateway apparatus and a network system which solve the above problems.

The present invention has been made to solve the problems as described above, and according to the present invention, the gateway device is connected to the WAN connection unit connecting to the Internet, the LAN connection unit connecting to the home network, and the Internet And a device connected to the home network transmit and receive information necessary for one-to-one communication, and monitoring the arrival of a telephone connected to the home network, and based on the monitoring result, the home network a functional monitoring unit for determining the control content for the connected the surveillance camera, according to the control content which the functional monitoring unit is determined, and a control unit for controlling the surveillance camera, the control content, the surveillance camera It is characterized in that it is the start of recording of captured monitoring data .

  As described above, according to the present invention, in a system capable of operating a device connected in the home network from outside the home network, signaling information of the device connected in the home network to be added is signaled by the gateway device 101. It may be newly registered in the unit 207. The user of the home network can add a device connected in the home network by accessing the gateway device 101 connected to the home network 103.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram of the network system containing the gateway apparatus in Embodiment 1 of this invention. It is a block diagram of the gateway apparatus in Embodiment 1 of this invention. It is a figure which shows an example of the data structure of the signaling information in Embodiment 1 of this invention. It is a sequence diagram of the network system in Embodiment 1 of this invention. It is a block diagram of the gateway apparatus in Embodiment 2 of this invention. It is a sequence diagram of the network system in Embodiment 2 of this invention. It is a whole block diagram of the network system containing the gateway apparatus in Embodiment 3 of this invention. It is a block diagram of the gateway apparatus in Embodiment 3 of this invention. It is a figure which shows an example of the data structure of the control table in Embodiment 3 of this invention. It is a processing flow figure of the gateway apparatus 101 in Embodiment 3 of this invention.

  DETAILED DESCRIPTION Embodiments of a gateway apparatus and a network system including the gateway apparatus according to the present invention will be described with reference to the drawings. In the following drawings, the same reference numerals indicate the same or corresponding configurations. The present invention is not limited to the embodiments shown below.

Embodiment 1
FIG. 1 is an overall configuration diagram of a network system including a gateway device according to a first embodiment of the present invention.

  The gateway device 101 is connected to the Internet 102 and the home network 103. The home network may also be referred to as a local network. A gateway device that bridges the Internet 102 and the home network 103 may be referred to as a home gateway.

  Various devices may be connected to the home network 103. An example will be described with reference to FIG. The type and number of devices connected to the home network 103 are not limited to those shown in FIG. The personal computer 104 is connected to the home network 103. The WEB camera 105 captures an image of the surroundings, is connected to the personal computer 104 by, for example, USB (UNIVERSAL SERIAL BUS), and transmits the acquired video data and audio data to the personal computer 104. The STB 106 (SET TOP BOX) is connected to the home network 103. The STB 106 receives video data and audio data as a video service via the Internet 102 and the gateway device 101. The television 107 is connected to the STB 106 and reproduces video data and audio data received from the STB 106. An IP (INTERNET PROTOCOL) telephone 108 is connected to the home network 103. The IP telephone 108 transmits and receives video data and audio data via the Internet 102 and the gateway device 101, and reproduces the received data.

  Various devices may be connected to the gateway device 101. An example will be described with reference to FIG. The type and number of devices connected to the gateway device 101 are not limited to those shown in FIG. The HDD 109 (HARD DISK DRIVE) is connected to the gateway device 101 by, for example, USB, and data writing and reading from the gateway device 101 are executed. The WEB camera 110 captures an image of the surroundings, and is wirelessly connected to the gateway device 101, for example, and transmits the acquired video data and audio data to the gateway device 101. The WEB camera 111 captures an image of the surroundings, is connected to the gateway device 101 by, for example, USB, and transmits the acquired video data and audio data to the gateway device 101. The client 112 communicates with the gateway device 101 via the Internet 102.

  FIG. 2 is a block diagram of the gateway device 101 according to the first embodiment of the present invention.

  A WAN (WIDE AREA NETWORK) connection unit 201 is connected to the Internet 102, a LAN (LOCAL AREA NETWORK) connection unit 202 is connected to a home network 103, and a wireless connection unit 203 is a device connected using wireless (for example, a device) It connects to the web camera 110) of FIG. The USB connection unit 204 is connected to an apparatus connected using USB (for example, the HDD 109 and the WEB camera 111 in FIG. 1), and the recording unit 205 is a memory 206 or an external storage device connected (for example, FIG. Write data to the HDD 109) and read data from the memory 206 or an external storage device connected.

  The signaling unit 207 includes a connection destination confirmation unit 208, a session unit 209, and a signaling information storage unit 210. The signaling unit 207 establishes a path of peer-to-peer (PEER TO PEER: P2P) communication between an apparatus connected in the home network and an apparatus that wants to operate the apparatus from outside the home network, and the apparatuses can communicate with each other. It sends and receives messages that exchange information necessary for setting the status (hereinafter referred to as "signaling information"). P2P communication is also referred to as one-to-one communication. After the exchange of signaling information is completed, a unit capable of transmitting and receiving data bi-directionally between devices is referred to as a session, and setting a state in which data can be transmitted and received bi-directionally between devices is referred to as establishing a session. Specific examples of the device connected in the home network include the personal computer 104, the WEB camera 105, the STB 106, the television 107, the IP phone 108, the WEB camera 110, the WEB camera 111, etc. in FIG. The device connected to the home network is hereinafter referred to as "in-home device". A specific example of a device that wants to operate the device in the home from outside the home network is the client 112 in FIG. A device that wants to operate the in-home device from outside the home network is hereinafter referred to as the "out-home device". The device outside the home is a device connected to the Internet. That is, the signaling unit 207 establishes a P2P communication path between the in-home device and the out-of-home device, and transmits and receives messages for exchanging signaling information in order to enable mutual communication between the devices.

  The connection destination confirmation unit 208 determines whether to transmit and receive a message for establishing a session between the in-home device and the out-of-home device. The session unit 209 transmits and receives messages to exchange signaling information, and establishes a session between the in-home device and the out-home device. The signaling information storage unit 210 stores the signaling information of the in-home device. The signaling information may be stored in the memory 206 or an external storage device (for example, the HDD 109 in FIG. 1) connected to the gateway device 101. The signaling information is registered based on user settings or user settings. The user of the home network registers signaling information from the input unit 211. The input unit 211 is an input device having a user interface. Also, the user of the home network may register the signaling information from a device having a user interface connected to the gateway device 101, for example, the personal computer 104 or the television 107 of FIG. Specific examples of the signaling information include an IP address, a port number, a protocol used for communication, and a band used for communication.

  FIG. 3 is a diagram showing an example of a data structure of signaling information in Embodiment 1 for carrying out the present invention. The data structure is not limited to that shown in FIG. Identification information for identifying another in-home device, IP address 303, port number 304, communication protocol 305, used bandwidth 306, and the like are associated and stored. The identification information of the in-home device may be the number 301 assigned to the in-home device connected to the home network illustrated in FIG. 3, the device name 302, the device ID, and the like.

  A SIP (SESSION INITIATION PROTOCOL) unit 212 establishes an SIP session between devices performing P2P communication. Alternatively, the voice data received from another in-home device is transmitted to IP phone 107.

  Next, the operation will be described. FIG. 4 is a sequence diagram of a network system in the first embodiment for implementing the present invention.

  At step ST401, the user of the home network registers the IP address of the gateway apparatus 101 and the identification information of the in-home apparatus in the apparatus outside the home. Generally, the user of the in-home device, the gateway device 101 to which the device is connected, and the out-of-home device to be operated are identical. Therefore, it is possible to register the IP address of the gateway apparatus 101 and the identification information of the in-home apparatus in advance to the out-of-home apparatus. In step ST402, the user of the home network registers signaling information of the in-home apparatus in the gateway apparatus 101.

  In step ST403, the out-of-home apparatus is connected to the in-home apparatus that wants to operate the connection request including the information of the own apparatus (signaling information of the own apparatus) and the identification information of the in-home apparatus (the apparatus that wants P2P communication) to operate. It transmits to the gateway device 101 which is The information of the out-of-home device is hereinafter referred to as "first client signaling information". Specific examples of the first client signaling information include the IP address and port number of the device outside the home. In addition, data information after establishment of P2P communication may be transmitted. Specific examples of the data information include the communication protocol of the data to be transmitted, the encryption method, and information on the key thereof.

  In step ST404, the connection destination confirmation unit 208 of the signaling unit 207 of the gateway device 101 determines whether to transmit and receive a message for establishing a session between the in-home device and the out-of-home device. Specifically, it is checked whether the identification information of the in-home apparatus included in the connection request received in step ST403 is stored in the signaling information storage unit 210 as the signaling information. If it is stored as signaling information, message transmission / reception is performed, and if not stored, message transmission / reception is not performed. If it is not stored, it is determined that the connection destination is unknown. When not performing message transmission and reception, it transfers to step ST405. When transmitting and receiving a message, the process proceeds to step ST407.

  In step ST405, session section 209 of signaling section 207 of gateway apparatus 101 transmits an error message to the apparatus outside the home. In step ST406, the signaling unit 207 of the gateway device 101 discards the connection request received in step ST403, and ends the processing.

  At step ST407, the session unit 209 of the signaling unit 207 of the gateway apparatus 101 transfers the connection request received at step ST403 to the in-home apparatus. In step ST408, the in-home apparatus having received the connection request determines whether or not connection permission for the connection request is permitted automatically or by user operation, and in the case of connection permission, the process proceeds to ST409. The description of the case where the connection is not permitted is omitted.

  In step ST409, the in-home apparatus stores the first client signaling information included in the connection request received in step ST407. In step ST410, the in-home apparatus transmits a response signal to the connection request received in step ST407. The response signal may include in-home device signaling information. The signaling information of the home device includes an IP address, a port number, and the like. In step ST411, session section 209 of signaling section 207 of gateway apparatus 101 transmits a response signal to the apparatus outside the home. The response signal includes the in-home device signaling information. The signaling information may be based on the signaling information stored in the signaling information storage unit 210, or may be based on the information included in the response signal received in step ST410. In step ST412, the out-of-home apparatus stores the in-home apparatus signaling information included in the response signal received in step ST411.

  In the above, the path of P2P communication between the out-home device and the in-home device is established, and transmission and reception of messages for exchanging signaling information necessary for enabling mutual communication between the devices are completed, and data is exchanged between the devices It can be sent and received in both directions. In step ST413, a session is established between the out-home apparatus and the in-home apparatus.

  Subsequently, the operation in the case of terminating the established session will be briefly described. In step ST414, the out-of-home apparatus transmits a close notification to the in-home apparatus. In step ST415, the in-home apparatus discards the first client signaling information stored in step ST409. In step ST416, the in-home apparatus transmits a response signal to the close notification received in step ST414. In step ST417, the out-of-home apparatus discards the signaling information of the in-home apparatus stored in step ST412.

  In the present embodiment, the following effects can be obtained. In the prior art, the addition of the in-home device had to implement the addition of the in-home device signaling information to the cellular gateway or the Internet service provider's WEB gateway. In this embodiment, by providing the signaling unit 207 in the gateway device 101, in the case of addition of the in-home device, the signaling information of the in-home device to be added may be newly registered in the signaling unit 207 of the gateway device 101. . That is, by providing the signaling unit 207 in the gateway device 101, the user of the home network can add the in-home device by accessing the gateway device 101 connected to the home network 103, and the user operability is improved. . In addition, since the signaling information of the home device is stored in the home network 103 without using the service of the Internet 102, it is possible to construct a highly secure system.

  In the prior art, when the out-of-home device changes the in-home device to be connected, for example, when it is desired to operate the STB 106 after operating the PC 104, the session between the out-of-home device and the PC 104 is ended. It was necessary to reestablish the session by accessing the external cellular gateway or the web gateway of the internet service provider. Connection to a mobile phone gateway or an internet service provider's WEB gateway will use the service on the Internet 102, and information on who made a call to whom and when the communication contents are obtained by a third party there is a possibility. By providing the signaling unit 207 in the gateway apparatus 101, it is possible to realize the change of the other party of P2P communication without using the service on the Internet 102, and it is possible to construct a system with higher security.

  Also, conventionally, the gateway device 101 is a device connected to the Internet 102 and the home network 103. By providing the signaling unit 207 in the gateway apparatus 101, the gateway apparatus 101 can realize a function using signaling information of an in-home apparatus of a system capable of operating an apparatus connected in the home network from outside the home network. Become. It is possible to obtain the effect that it is not necessary to separately construct a device or a network for a system that can operate devices connected to the home network from outside the home network.

Second Embodiment
The entire configuration diagram of the network system including the gateway device is the same as that of the first embodiment. The description of the parts having the same functions as in the first embodiment will be omitted. FIG. 5 is a block diagram of the gateway apparatus 101 according to the second embodiment for carrying out the present invention. FIG. 5 is similar to FIG. The explanation will focus on the different parts.

The signaling unit 207 includes a connection destination confirmation unit 208, a WAN side session unit 501, a LAN side session unit 502, and a signaling information storage unit 210. The signaling unit 207 establishes a peer-to-peer communication path between the out-home apparatus and the gateway apparatus 101, and transmits and receives messages for exchanging signaling information. Also, a path of peer-to-peer communication is established between the gateway device 101 and the in-home device, and messages for exchanging signaling information are transmitted and received. The WAN-side session unit 501 transmits and receives messages to exchange signaling information, and establishes a session between the device outside the home and the gateway device 101.
The LAN-side session unit 502 transmits and receives messages to exchange signaling information, and establishes a session with the gateway apparatus 101 and the in-home apparatus.

  A WEBRTC (WEB REAL-TIME COMMUNICATION) unit 503 enables bi-directional communication of video data and audio data, and implements processing conforming to the WebRTC standard, which is a method for realizing real-time communication (real-time communication) on a browser. The WEBRTC standard is being standardized by W3C (WORLD WIDE CONSORTIUM). A VPN (VIRTUAL PRIVATE NETWORK) unit 504 virtually establishes a private network connection when P2P communication is started between the gateway device 1 and the device outside the home.

  Next, the operation will be described. FIG. 6 is a sequence diagram of a network system in the second embodiment for implementing the present invention. FIG. 6 is similar to FIG. The explanation will focus on the different parts.

  At step ST401, the user of the home network registers the IP address of the gateway apparatus 101 and the identification information of the in-home apparatus in the apparatus outside the home. Generally, the user of the in-home device, the gateway device 101 to which the device is connected, and the out-of-home device to be operated are identical. Therefore, it is possible to register the IP address of the gateway apparatus 101 and the identification information of the in-home apparatus in advance to the out-of-home apparatus. In step ST402, the user of the home network registers signaling information of the in-home apparatus in the gateway apparatus 101.

  In step ST403, the out-of-home apparatus transmits a connection request including information on the own apparatus and identification information on the in-home apparatus (the apparatus that wants to perform P2P communication) to the gateway apparatus 101 connected to the in-home apparatus To send. The information of the out-of-home device is hereinafter referred to as "first client signaling information". Specific examples of the first client signaling information include the IP address and port number of the device outside the home. In addition, data information after establishment of P2P communication may be transmitted. Specific examples of the data information include the communication protocol of the data to be transmitted, the encryption method, and information on the key thereof.

  In step ST404, the connection destination confirmation unit 208 of the signaling unit 207 of the gateway device 101 determines whether to transmit and receive a message for establishing a session between the in-home device and the out-of-home device. Specifically, it is checked whether the identification information of the in-home apparatus included in the connection request received in step ST403 is stored in the signaling information storage unit 210 as the signaling information. If it is stored as signaling information, message transmission / reception is performed, and if not stored, message transmission / reception is not performed. If it is not stored, it is determined that the connection destination is unknown. When not performing message transmission and reception, it transfers to step ST405. When transmitting and receiving a message, the process proceeds to step ST601. In step ST405, WAN side session section 501 of signaling section 207 of gateway apparatus 101 transmits an error message to the out-of-home apparatus. In step ST406, the signaling unit 207 of the gateway device 101 discards the connection request received in step ST403, and ends the processing.

  In step ST601, the WAN-side session unit 501 of the signaling unit 207 of the gateway apparatus 101 transmits the connection request received in step ST403 to the WEBRTC unit 503. In step ST602, the WEBRTC unit 503 stores the first client signaling information included in the connection request received in step ST601. In step ST603, the WEBRTC unit 503 transmits a response signal to the connection request received in step ST601 to the WAN side session unit 501 of the signaling unit 207 of the gateway device 101. The response signal may include the information of the WEBRTC unit 503. The information of the WEBRTC unit 503 includes the IP address of the gateway apparatus 101, a port number, and the like. In step ST604, WAN side session section 501 of signaling section 207 of gateway apparatus 101 transmits the response signal received in step ST603 to the out-of-home apparatus. The response signal includes the signaling information of the gateway apparatus 101. The signaling information of the gateway apparatus 101 may be stored in the signaling information storage unit 210 and may be based on the stored information or may be based on the information included in the response signal received in step ST603. In step ST605, the out-of-home apparatus stores the signaling information of the gateway apparatus 101 included in the response signal received in step ST604.

  In the above, the path of P2P communication between the device outside the home and the gateway device 101 is established, and transmission and reception of messages for exchanging signaling information necessary for enabling mutual communication between devices are completed, and data is exchanged between devices It can be sent and received in both directions. In step ST606, the first session between the device outside home and the gateway device 101 is established. More specifically, a path for P2P communication between the home-external device and the WEBRTC unit 503 of the gateway device 101 is established, and transmission and reception of messages for exchanging signaling information necessary for enabling mutual communication between the devices are completed. Data can be transmitted and received bidirectionally between devices. In step ST 606, a first session between the device outside the home and the WEBRTC unit 503 of the gateway device 101 is established. The first session may be a VPN connection using the VPN unit 504.

  In step ST607, connection destination confirmation section 208 of signaling section 207 of gateway apparatus 101 is stored in signaling information storage section 210 based on the identification information of the in-home apparatus included in the connection request received in step ST403. From the existing signaling information, the address information (for example, IP address 303, port number 304, etc. of FIG. 3) of the in-home device to which the out-home device requests connection is extracted.

  In step ST608, the LAN side session section 502 of the signaling section 207 of the gateway apparatus 101 uses the address information of the in-home apparatus extracted in step ST607 to the in-home apparatus to make a connection request received in step ST403. Send The connection request includes the information of the gateway apparatus 101 (which may be the information of the WEBRTC unit 503). Specific examples of the information of the gateway apparatus 101 and the information of the WEBRTC unit 503 include an IP address of the gateway apparatus 101, a port number, and the like.

  The in-home apparatus having received the connection request in step ST408 determines whether or not connection permission for the connection request is permitted automatically or by user operation, and in the case of connection permission, proceeds to ST609. The description of the case where the connection is not permitted is omitted. In step ST609, the in-home apparatus stores the signaling information of the gateway apparatus included in the connection request received in step ST608. In step ST610, the in-home apparatus transmits a response signal to the connection request received in step ST608 to the LAN side session section 502 of the signaling section 207 of the gateway apparatus 101. The response signal may include in-home device signaling information. The signaling information of the home device includes an IP address, a port number, and the like. At step ST611, the LAN side session unit 501 of the signaling unit 207 of the gateway apparatus 101 transmits the response signal received at step ST610 to the WEBRTC unit 503. In step ST612, the WEBRTC unit 503 stores the signaling information of the in-home apparatus included in the response signal received in step ST610.

  As described above, a path for P2P communication between the in-home device and the gateway device 101 is established, and transmission and reception of messages for exchanging signaling information necessary for enabling mutual communication between the devices are completed, and data is exchanged between the devices. It can be sent and received in both directions. In step ST613, a second session is established between the in-home apparatus and the gateway apparatus 101. More specifically, a path for P2P communication between the in-home device and the WEBRTC unit 503 of the gateway device 101 is established, and transmission and reception of messages for exchanging signaling information necessary for enabling mutual communication between the devices are completed. Data can be transmitted and received bidirectionally between devices. In step ST613, a second session between the in-home apparatus and the WEBRTC unit 503 of the gateway apparatus 101 is established. By using the first session of step ST606 and the second session of step ST613, a path of virtual P2P communication (virtual P2P) between the device outside home and the device inside home is established.

  In the present embodiment, in addition to the effects of the first embodiment, the following effects can be obtained. When the out-of-home device changes the in-home device to be connected by including the WEBRTC unit 503 of the gateway device 101, for example, even if it is desired to operate the STB 106 after operating the personal computer 104, etc. It is sufficient to change only the second session between the in-home apparatus and the gateway apparatus 101 without ending the first session with the gateway apparatus 101. That is, it is possible to eliminate the need for redetermining whether or not to permit the connection of the device outside the home, and to obtain the effect of preventing a delay in control processing. Also, if the first session is a VPN connection, there is no need to disconnect the VPN connection between the out-of-home device and the gateway device 101 when changing the in-home device to be connected. There is an effect that construction is possible.

  Further, by providing the WEBRTC unit 503 of the gateway device 101, the gateway device 101 terminates the WEBRTC. Thus, even if the in-home apparatus does not have the WEBRTC function, if the out-of-home apparatus has the WEBRTC function, the out-of-home apparatus can connect using the WEBRTC. Since the connection can be made using the WEBRTC regardless of the specifications of the home device, it is possible to construct a system convenient for the user.

Third Embodiment
FIG. 7 is an overall configuration diagram of a network system including a gateway device in the third embodiment for implementing the present invention. FIG. 7 is similar to FIG. The explanation will focus on the different parts. A surveillance camera system is connected to the home network 103. As a specific example of the surveillance camera system, a surveillance camera 701 installed indoors, a surveillance camera 702 installed outdoors, a recorder that stores surveillance data (video data and audio data) captured by the surveillance camera 701 and the surveillance camera 702 An operation personal computer 703 or the like performs control of the monitoring camera 701 and the monitoring camera 702. The operation personal computer 704 may search for and reproduce the monitoring data stored in the recorder 703. In general, surveillance cameras have higher image quality than WEB cameras, and the volume of video data also increases. Moreover, there are many apparatuses which can operate PTZ (pan, tilt, zoom) in a surveillance camera. The captured monitoring data may be stored in the HDD 109 via the home network 103 or the gateway device 101. In FIG. 7, the devices constituting the monitoring camera system are directly connected, but may be connected via the home network 103.

  Embodiment 3 and Embodiment 1, and Embodiment 3 and Embodiment 2 can be used in combination. In combination, the out-of-home device can operate the devices constituting the surveillance camera system. More specifically, the device outside the home can operate the monitoring camera 701 installed indoors, the monitoring camera 702 installed outdoors, the recorder 703, the operation personal computer 704, and the like. In the following, in the third embodiment, a case where it is combined with the second embodiment will be mainly described.

  FIG. 8 is a block diagram of the gateway device 101 according to the third embodiment for implementing the present invention. FIG. 8 is similar to FIG. The explanation will focus on the different parts. The function monitoring unit 801 monitors the status of the in-home device being connected to the gateway device 101, the load status of the gateway device 101, and as a specific example, the CPU (CENTRAL PROCESSING UNIT) (not shown) usage rate and memory 206 usage rate. The control content for the device currently connected to the gateway device 101 is determined based on the monitoring result. Specific examples of the device currently connected to the gateway device 101 include the personal computer 104, the STB 106, the IP phone 108, the HDD 109, the WEB camera 110, the WEB camera 111, etc. in FIG. The control content based on the monitoring result is stored in the memory 206 or an external storage device (for example, the HDD 109 in FIG. 1) connected to the gateway device 101. Hereinafter, stored data of control contents based on the monitoring result is referred to as a control table. The control table is registered based on user settings or user settings. The user of the home network registers the control table from the input unit 211. Also, the user of the home network may register the control table from a device having a user interface connected to the gateway device 101, for example, the personal computer 104 or the television 107 of FIG.

  The in-home device control unit 802 controls the in-home device according to the control content determined by the function monitoring unit 801. Alternatively, the in-home device control unit 802 controls the in-home device according to the control content for the in-home device requested by the out-of-home device to the gateway device 101 using, for example, the second embodiment. Hereinafter, the in-home apparatus controlled according to the control content will be described as the monitoring camera 701 and the monitoring camera 702. In that case, the in-home device control unit 802 may be referred to as a surveillance camera control unit. Specific examples of the control contents are adjustment of resolution, bit rate, frame rate, image size, PTZ control, control of distribution destination of monitoring data, and the like.

  FIG. 9 is a diagram showing an example of a data structure of a control table according to Embodiment 3 for carrying out the present invention. The data structure is not limited to that shown in FIG. The control content 902 of the in-home device is stored in association with the monitoring result 901 such as the state of the device currently connected to the gateway device 101, the CPU usage rate of the gateway device 101, and the memory 206 usage rate.

  As a specific example of the monitoring result 901, control of the device name 903 (which may be a device ID or the like) which is identification information for identifying another home device to be monitored, and control of the IP address 904 and the control content 902 Or, the state 905 of the monitoring target to be started is stored. A number 906 is a control table number, a serial number.

  As a specific example of the control content 902, since the usage rate of the CPU of the gateway apparatus 101 is high at No. 1, the CPU setting is changed to reduce the size of the monitoring data distributed from the monitoring camera. The processing load on the monitoring data of the above is reduced, and an IP telephone etc. connected to the gateway apparatus 101 can be made comfortable. As a specific example of the state 905, when the CPU usage rate exceeds a predetermined threshold (70% in FIG. 9) or exceeds the threshold, it is determined that the CPU usage rate is high, and the control content 902 is executed. Since the video of the surveillance camera has high image quality and a large data size with respect to the WEB camera, and a large CPU load is involved when processing the video of the surveillance camera, it is necessary to reduce the size of the surveillance data distributed from the surveillance camera It is useful. As a specific example of control to reduce the size of monitoring data to be distributed, the frame rate of control content 2 of No. 1 is reduced, the image size of control content N is reduced, resolution is not shown although it is not shown. The bit rate may be lowered. Since the CPU utilization rate of the gateway device 101 is high at No. 1, the gateway device 101 stops the recording of monitoring data and lowers the CPU utilization rate.

  Since the usage rate of the HDD 109 connected to the gateway device 101 is high at number 3, storage of monitoring data in the HDD 109 via the gateway device 101 is stopped, and the monitoring data is stored in another storage device. As a result, it is possible to stop the increase in the usage rate of the HDD 109 and to prevent the loss of storage of monitoring data. As a specific example, the distribution destination of the monitoring data from the monitoring camera 701 and the monitoring camera 702 is switched to the recorder 703.

  At the number N, triggered by the arrival of the IP telephone 108, the gateway apparatus 101 starts recording monitoring data as a type of service. On the other hand, in order to reduce the CPU usage rate of the gateway device 101, the processing load for monitoring data of the CPU is reduced by changing the setting of the camera so as to reduce the size of the monitoring data distributed from the monitoring camera. An IP telephone connected to the apparatus 101 can be comfortably performed.

  Next, the operation will be described. FIG. 10 is a process flow diagram of the gateway device 101 according to the third embodiment for implementing the present invention. In step ST1000, the user of gateway apparatus 101 registers a control table. The user registers the monitoring result and control content in consideration of the priority such as which function is to be prioritized in the function realized in the home network. In the example of the number N in FIG. 9, since setting the frame rate of the monitoring camera to a low value and the like are registered at the arrival of the IP phone, the function of the IP phone is set to be prioritized over the function of the monitoring camera. .

  In step ST1001, the function monitoring unit 801 of the gateway apparatus 101 refers to the control table stored in the memory 206, and the status of the apparatus currently connected to the required gateway apparatus 101, the CPU usage rate of the gateway apparatus 101, and the memory 206. The monitoring of the usage rate and the like is performed to acquire each value, and comparison with the threshold registered in the control table is performed. Step ST1001 may be performed in a predetermined cycle. In step ST1002, the function monitoring unit 801 of the gateway apparatus 101 determines whether the comparison result in ST1001 satisfies the state of the monitoring target for performing or starting control, that is, whether it is outside the threshold. As a specific example, it is determined whether the state 905 of FIG. 9 is satisfied. If it is determined that the acquired value exceeds the threshold value and the state of the monitoring target for performing or starting control is satisfied, the process proceeds to step ST1003. If not satisfied, the process returns to step ST1001. The state of the monitoring target at which the monitoring result implements or starts control is grasped by referring to the control table stored in the memory 206. In step ST1003, the function monitoring unit 801 of the gateway device 101 instructs the in-home device control unit 801 to perform the corresponding control. The control content is grasped by referring to the control table stored in the memory 206. Then, after the control is performed in ST1003, the process returns to ST1001 again and continues monitoring.

  In the present embodiment, the following effects can be obtained. The gateway device can connect many in-home devices via the home network or directly. Therefore, the processing load of the gateway apparatus becomes high, and a situation where it can not be used comfortably, such as a function that the user wants to prioritize can be considered. According to the present embodiment, since the user can register the monitoring result and control content in consideration of the priority, such as which function is desired to be prioritized by the function realized in the home network, the function realized in the home network , Can be implemented based on the user's priority. The above effect is particularly remarkable when connecting a monitoring camera to a home network. The surveillance camera has a higher image quality than the WEB camera, and the volume of video data is also larger. This is because the video of the surveillance camera has a high image quality and a large data size with respect to the WEB camera, and a large processing load is generated on the CPU of the gateway device when processing the video of the surveillance camera.

  Further, by providing the gateway device 101 with the in-home device control unit 802 (monitoring camera control unit), the following effects can be obtained. When the third embodiment and the second embodiment are used in combination, the gateway device 101 is performing P2P communication with the in-home device. Therefore, by providing the in-home device control unit 802 with the gateway device 101, the out-home device can operate the in-home device (monitoring camera) without using a special application that can control the monitoring camera. It has the effect of

  DESCRIPTION OF SYMBOLS 101 gateway apparatus, 102 Internet, 103 home network, 201 WAN connection part, 202 LAN connection part, 207 signaling part, 503 WEBRTC part, 801 function monitoring part, 802 in-home apparatus control part.

Claims (2)

WAN connection to connect to the Internet,
LAN connection to connect to home network,
A signaling unit for transmitting / receiving information necessary for one-to-one communication between the device connected to the Internet and the device connected to the home network;
A function monitoring unit that monitors an incoming call of a telephone connected to the home network, and determines a control content for a monitoring camera connected to the home network based on the monitoring result;
A control unit that controls the monitoring camera according to the control content determined by the function monitoring unit ;
The control content is a start of recording of monitoring data captured by the monitoring camera
A gateway device characterized by WAN connection to connect to the Internet,
LAN connection to connect to home network,
A device for transmitting / receiving necessary information in one-to-one communication between the device connected to the Internet and the own device, and a signaling unit for transmitting / receiving information necessary for communication between the own device and the device connected to the home network ,
A function monitoring unit that monitors an incoming call of a telephone connected to the home network, and determines a control content for a monitoring camera connected to the home network based on the monitoring result;
A control unit that controls the monitoring camera according to the control content determined by the function monitoring unit ;
The control content is a start of recording of monitoring data captured by the monitoring camera
A gateway device characterized by

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