JP2017204717A - Home network system, telephone system and connection destination synchronization method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform wireless communication with each other between a master unit and a portable telephone terminal via a wireless router, by registering the information of the wireless router in the master unit via a wired router for connection with the master unit, even in a situation where the wireless router for wireless connection with the portable telephone terminal is not connected directly with the master unit.SOLUTION: An intercom master unit 210 is connected directly with a wired router 230, and acquires the BSSID of the wired router 230, and the BSSIDs of multiple wireless routers 240A, 240B for connection with the wired router. The intercom master unit 210 transmits these BSSIDs, as a BSSID list, to a smart phone 250. The smart phone 250 stores the BSSID list transmitted from the intercom master unit 210, and when connected with any one of the wireless router 240A, 240B, and the BSSIDs of that wireless router is included in the BSSID list transmitted from the intercom master unit 210, performs wireless connection with the intercom master unit 210 in home connection mode.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a home network system, a telephone device, and a connection destination synchronization method.

  Residential intercoms (also called “doorphones”) are composed of an entrance cordless handset installed on the side of the exterior of the house entrance and an intercom base phone installed indoors. It is. In other words, the resident can often confirm it by talking with the visitor without opening the entrance, and is often installed for the purpose of crime prevention. Such an intercom is usually installed by a construction contractor during home construction. The intercom master unit is connected to the entrance slave unit and to a wired router, and can transmit and receive various data via the wired router.

  As a prior art related to such a door phone system, for example, a communication system shown in Patent Document 1 is known. In the TV door phone system shown in Patent Literature 1, when a user (for example, the above-mentioned resident) visits a visitor while going out and the visitor presses the call switch of the entrance handset, the entrance handset visits The person's image and sound are captured. The indoor parent device transmits the image and audio data of the visitor captured by the entrance child device to the mobile phone of the user who is out via the mobile phone network. The indoor parent device receives the user's response from the mobile phone, and outputs the user's response voice from the entrance device. Thereby, according to the TV door phone system, even if the user is away from home, the mobile phone can respond to the visitor.

JP 2005-341040 A

  However, in the configuration of Patent Document 1, since the home base unit and the mobile phone always perform wireless communication via the mobile phone network, for example, when the user uses the mobile phone at home, the mobile phone attempts to respond to the visitor. Then, communication costs associated with the use of the mobile phone network are inevitably generated. In particular, when the image data picked up by the camera of the entrance unit and the voice data collected by the microphone of the entrance unit are transmitted together, the amount of communication data increases, so the communication cost becomes high.

  On the other hand, in the same manner as in Patent Document 1, in order to suppress an increase in communication cost, a mobile phone is used as a slave unit for the interphone master unit described above (that is, an interphone master unit connected to a wired router at the time of housing construction). Consider using a wireless connection. For example, an interphone base unit is connected to a plurality of wireless routers via a wired router connected by a wired LAN, and a mobile phone that is a target of wireless connection as a slave unit of the interphone base unit is connected to only one of the wireless routers. Assume a case of wireless connection. In this situation, the intercom master unit has registered only the information of the wired router, and has not registered the information of the wireless router connected to the wired router. For this reason, the interphone base unit and the mobile phone cannot be wirelessly connected, and the interphone base unit still has to be connected to the mobile phone via the mobile phone network, which makes it difficult to suppress an increase in communication costs. It was. Further, when the interphone base unit is wirelessly connected to a mobile phone via a mobile phone network, the functions that can be used in the mobile phone are restricted from the viewpoint of security, and the user convenience is not good.

  The present invention has been made in view of the above-described conventional situation. Even in a situation where a wireless router to which a mobile phone terminal is wirelessly connected and a parent device are not directly connected in a home, the mobile phone terminal and Without changing the connection with the wireless router, the master unit registers the information of the wireless router via the wired router connected to the master unit. An object of the present invention is to provide a home network system, a telephone device, and a connection destination synchronization method capable of wireless communication, suppressing an increase in communication cost and improving user convenience.

  The present invention relates to a parent device capable of wireless communication with at least one electric device installed in a home, a mobile phone terminal capable of communicating with the parent device via a wired router or a wireless router, The master unit is directly connected to a wired router, acquires information on the wired router and information on a plurality of wireless routers connected to the wired router, and acquires the acquired wired Router information and information of the plurality of wireless routers are transmitted as parent device connection router information to the mobile phone terminal via the wired router, and the mobile phone terminal has a storage unit, The transmitted base unit connection router information is stored in the storage unit, and when the mobile phone terminal is connected to any one of the wireless routers, the information of the wireless router is transmitted from the base unit Previous If it included in base unit connection router information, wirelessly connecting a wireless connection mode in home connection mode between said base unit, to provide a home network system.

  The present invention is also a telephone device capable of wireless communication with at least one electric device installed in a home and capable of communicating with a mobile phone terminal via a wired router or a wireless router, A wired connection detection unit that detects a connection with a router, and a router that acquires information on the wired router whose direct connection is detected by the wired connection detection unit and information on a plurality of wireless routers connected to the wired router An information acquisition unit, a first communication unit that transmits the information of the wired router and the information of the plurality of wireless routers acquired by the router information acquisition unit to the mobile phone terminal as parent device connection router information; When the mobile phone terminal is connected to any of the wireless routers, the information of the wireless router stored when the mobile phone terminal is included in the base unit connection router information is transmitted from the mobile phone terminal Based on the premises determination notifications, and a control unit for switching to the home connection mode wireless connection mode between said mobile telephone terminal, to provide a telephone apparatus.

  The present invention also provides a base unit capable of wireless communication with at least one electric device installed in a home and a mobile phone terminal capable of communicating with the base unit via a wired router or a wireless router In the home network system including the connection destination synchronization method, the master unit is directly connected to the wired router, and acquires information on the wired router and information on a plurality of wireless routers connected to the wired router. The acquired information on the wired router and the information on the plurality of wireless routers are transmitted as parent device connection router information to the mobile phone terminal via the wired router, and the mobile phone terminal stores a storage unit. And storing the base unit connection router information transmitted from the base unit in the storage unit, and when the mobile phone terminal is connected to any of the wireless routers, information on the wireless router , If included in the base unit connection router information transmitted from the base unit, the wireless connection to the wireless connection mode in home connection mode between the master unit, providing the connected synchronization method.

  According to the present invention, even in a situation where the wireless router to which the mobile phone terminal is wirelessly connected and the parent device are not directly connected in the home, the connection to the parent device can be made without changing the connection between the mobile phone terminal and the wireless router. By registering the information of the wireless router via the connected wired router, the base unit and the mobile phone terminal can communicate wirelessly with each other via the wireless router, while suppressing an increase in communication costs. User convenience can be improved.

The figure which shows the schematic example of a structure and operation | movement of the door phone system of 1st Embodiment. Block diagram showing in detail an example of the internal configuration of the door phone master unit Block diagram showing an example of the internal configuration of a smartphone in detail Explanatory drawing which shows the example which operates a door phone main unit in access point mode, and newly registers the smart phone 250 as a connection destination to the door phone main unit 210 The sequence diagram explaining in detail an example of the connection destination synchronous operation | movement in the door phone system of 1st Embodiment The figure which shows the schematic example of a structure and operation | movement of the door phone system of 2nd Embodiment. The sequence diagram explaining in detail an example of the connection destination synchronous operation | movement in the door phone system of 2nd Embodiment The flowchart explaining an example of the operation | movement procedure of the door phone main unit of 2nd Embodiment in detail. The flowchart explaining an example of the operation | movement procedure of the smart phone of 2nd Embodiment in detail. The figure which shows the schematic example of a structure of the home monitoring system in the modification 1. The block diagram which shows an example of the internal structure of the main | base station in detail in the home monitoring system shown in FIG.

(Background and issues leading to the first embodiment)
In the configuration of Patent Document 1 described above, the home base unit and the mobile phone always perform wireless communication via the mobile phone network. For example, when the user uses the mobile phone at home, the mobile phone attempts to respond to the visitor. Then, communication costs associated with the use of the mobile phone network are inevitably generated. In particular, when both image data picked up by the camera of the entrance unit and audio data collected by the microphone of the entrance unit are transmitted together, the amount of communication data increases, so the communication cost becomes high.

  On the other hand, in the same manner as in Patent Document 1, in order to suppress an increase in communication costs, a mobile phone is used as a slave unit for the above-described interphone master unit (that is, an interphone master unit connected to a wired router at the time of housing construction). Think about using and connecting wirelessly. A wireless router that can be wirelessly connected to the mobile phone can be connected to the interphone base unit later, and the mobile phone and the intercom base unit can be connected wirelessly via the wireless router. However, the interphone master unit registers only the connection destination information of the wired router as the initial connection destination immediately after the construction of the house, and does not register the connection destination information of the wireless router. For this reason, if the interphone base unit does not register the connection destination information of the wireless router, the interphone base unit and the mobile phone cannot be wirelessly connected, and the interphone base unit is still connected to the mobile phone via the mobile phone network. Wireless connection has been required, and it has been difficult to suppress an increase in communication costs. In addition, when the intercom base unit is wirelessly connected to a mobile phone via a mobile phone network, the functions that can be used in the mobile phone are restricted from the viewpoint of security, and the user convenience is not good. there were.

  Therefore, in the first embodiment, when information for connecting to a wireless router capable of wireless communication with a mobile phone terminal is registered in the parent device in the home, the connection between the parent device and the mobile phone terminal is performed. Home network system and telephone device that share wireless router information and can wirelessly communicate with each other between the base unit and the mobile phone terminal via the wireless router, suppressing an increase in communication costs and improving user convenience An example of the connection destination synchronization method will be described.

  Hereinafter, embodiments that specifically disclose a home network system, a telephone device, and a connection destination synchronization method according to the present invention will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(First embodiment)
As a home network system according to the present invention, in the first embodiment, for example, an intercom system (or sometimes referred to as a “door phone system”) installed at the time of housing construction will be described as an example. Hereinafter, the intercom system is referred to as a door phone system.

  FIG. 1 is a diagram illustrating a schematic example of the configuration and operation of a door phone system 200 according to the first embodiment. The door phone system 200 is installed in the house by, for example, construction at the time of housing construction or renovation. In the door phone system 200, when the call button of the entrance cordless handset 260 is pressed by the visitor, the door phone master phone 210 informs the user with a ringing tone, and the visitor's image captured by the camera built in the entrance cordless handset 260 is displayed. The image is displayed on the screen of the door phone master unit 210, and a voice call between the user and the visitor is enabled.

  The door phone system 200 according to the present embodiment includes a door phone master unit 210, an entrance slave unit 260, a door phone slave unit 265, a wired router 230, a wireless router 240, and a smartphone 250. Hereinafter, in FIG. 5 and FIG. 7, the smartphone is abbreviated as “smartphone”. In FIG. 1, a dotted line frame w <b> 1 indicates a range of electric devices that are installed when a construction contractor for home construction or renovation constructs or renovates a house. In other words, when a home construction or renovation contractor constructs or renovates a home, the doorphone master unit 210, the entrance handset 260, the doorphone handset 265, and the wired router 230 are installed to be usable.

  The door phone master unit 210 as an example of the telephone device according to the present embodiment outputs a ringing tone from the speaker 226 (see FIG. 2) when the call button of the entrance slave unit 260 is pressed by a visitor, and the entrance slave unit. The image of the visitor imaged by the camera incorporated in 260 is displayed on the touch panel 225 (see FIG. 2).

  In addition, when the intercom master unit 210 is connected to the wired router 230, it can communicate with an electrical device connected to the wired router 230 via the wired router 230.

  In addition, door phone main unit 210 is connected to wired router 230, and when wired router 230 is connected to an Internet network such as mobile network NW, it is connected to mobile network NW via wired router 230. It is possible to communicate with a connected device (for example, the smartphone 250).

  Further, as will be described later, when the connection destination for communication is switched from the wired router 230 to the wireless router 240, the door phone master unit 210 communicates with the smartphone 250 via the wireless router 240 connected to the wired router 230. Wireless communication is possible. In FIG. 1, the wired router 230 and the wireless router 240 are illustrated as being connected by a cable or the like, but the wired router 230 and the wireless router 240 may not be connected. In this case, the doorphone master unit 210 can be wirelessly connected to the smartphone 250 via only the wireless router 240 without using the wired router 230.

  FIG. 2 is a block diagram showing in detail an example of the internal configuration of door phone master unit 210. The intercom master unit 210 includes a control unit 211, a memory 216, a packet configuration unit 217, a data extraction unit 218, buffers 219 and 220, a changeover switch 221, a wireless LAN (Local Area Network) communication unit 222, The configuration includes a cable connection portion 223, a touch panel 225, operation buttons 227, a speaker 226, and a microphone 228.

  The control unit 211 operates when a processor (not shown) executes an OS (Operating System) of the doorphone master unit 210 and a program that runs on the OS, and controls the operation of each unit of the doorphone base unit 210. The processor is configured using, for example, a central processing unit (CPU), a micro processing unit (MPU), a digital signal processor (DSP), or a field-programmable gate array (FPGA). The control unit 211 includes at least an operation mode switching unit 212, a notification unit 213, an AP (Access Point) search unit 214, and a registration unit 215.

  The registration unit 215 controls registration of information (connection destination information) related to a connection destination electrical device that communicates with the door phone parent device 210 into the memory 216. When the registration unit 215 communicates directly with, for example, the smartphone 250, the registration unit 215 registers unique IDs (for example, BSSID (for example, BSSID)) with the smartphone 250 in order to register the connection destination information of the smartphone 250 in the memory 216. Basic Service Set Identifier)) and authentication information (for example, a password corresponding to BSSID) and the like are exchanged.

  The AP search unit 214 as an example of the router information acquisition unit is connected to a wired router connected to the doorphone master unit 210, and is connected to the wired router to one or more access points (specifically, in the wireless LAN). Specifically, the wireless router is periodically searched. Details of the operation of the AP search unit 214 will be described later in the second embodiment. Note that the AP search unit 214 adds the BSSID of the detected wired router and access point (ie, wireless router) as a result of the search to the BSSID list LT stored in the memory 216, and updates the BSSID list LT. Here, BSSID is an identifier on the wireless LAN network.

  When the BSSID list LT is updated as a result of searching for an access point in the AP search unit 214, the notification unit 213 notifies the BSSID list LT to all the smartphones 250 registered as connection destinations.

  The operation mode switching unit 212 is connected to the smartphone according to a connection state notification (more specifically, an in-home determination notification or an out-of-home determination notification) notified from the smartphone 250 when the doorphone parent device 210 connects to the smartphone 250. The wireless connection mode and the operation mode with 250 are switched to the in-home connection mode or the out-of-home connection mode. The in-home determination notification is a determination notification that the wireless connection mode between the doorphone parent device 210 and the smartphone 250 is the in-home connection mode, and is transmitted from the smartphone 250 to the doorphone parent device 210. On the other hand, the out-of-home determination notification is a determination notification that the wireless connection mode between the doorphone parent device 210 and the smartphone 250 is the out-of-home connection mode, and is transmitted from the smartphone 250 to the doorphone parent device 210.

  Further, in the out-of-home connection mode, operations that can be performed by the smartphone 250 are limited as compared to the in-home connection mode. For example, when the door lock function is mounted on the doorphone master unit 210, in the home connection mode, the smartphone 250 can operate both the locking function and the unlocking function among the door locking functions. In other words, when the wireless connection mode with the smartphone 250 is the in-home connection mode, the doorphone master unit 210 receives the entrance locking instruction or the unlocking instruction from the smartphone 250 by the user operation. Alternatively, the entrance control device (not shown) that controls locking and unlocking of the entrance is executed to lock and unlock the entrance.

  On the other hand, in the out-of-home connection mode, the smartphone 250 can operate only the locking function among the lock functions of the entrance. In other words, when the wireless connection mode with the smartphone 250 is the out-of-home connection mode, the doorphone master unit 210 receives the lock instruction of the entrance from the smartphone 250 by the user operation, The entrance control device (not shown) that controls locking and unlocking is executed to lock the entrance.

  In the home connection mode, the doorphone master unit 210 does not limit the communication speed between the doorphone master unit 210 and the smartphone 250. For example, when receiving an image captured by the front door unit 260, the smartphone 250 is used as it is. Forward to. Thereby, the smart phone 250 can reproduce | regenerate the image | video transferred by the door phone main unit 210 in real time, and can reproduce | regenerate a smooth moving image without a delay.

  On the other hand, in the out-of-home connection mode, the doorphone master unit 210 limits the communication speed between the doorphone master unit 210 and the smartphone 250. For example, when receiving an image captured by the front door unit 260, for example, in-home connection The data is transferred to the smartphone 250 at a frequency 1/30 times that of the operation playback in the mode (that is, frame advance). Thereby, the smart phone 250 can reproduce | regenerate the image | video transferred by the intercom main unit 210 with the low frequency like frame | frame advance.

  The control unit 211 outputs a switching signal for switching the output destination of data transmitted from the doorphone master unit 210 and the input destination of data received by the doorphone master unit 210 to the changeover switch 221.

  The memory 216 as an example of the storage unit is configured by using a semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), or a flash memory, and holds data and programs necessary for the operation of the control unit 211. doing. In addition, the memory 216 associates each data of the visitor's image picked up by, for example, a visitor's image picked up by the camera of the front door unit 260 and the microphone (not shown) of the front door unit 260 with date / time information. Remember. Further, as will be described later, the memory 216 stores a BSSID list LT in which BSSIDs of access points (that is, wireless routers) connected to the wired router 230 are described.

  The packet configuration unit 217 generates packet data as transmission data and outputs the packet data to the buffer 219.

  The buffer 219 temporarily holds the packet data generated by the packet configuration unit 217.

  The buffer 220 temporarily holds packet data received by the wireless LAN communication unit 222 or the cable connection unit 223 and outputs the packet data to the data extraction unit 218.

  The data extraction unit 218 extracts the data of the payload part included in the packet data as the reception data held in the buffer 220.

  The changeover switch 221 switches the input / output destination of communication data to the cable connection unit 223 or the wireless LAN communication unit 222 in accordance with a switching signal from the control unit 211. The communication data here includes both data transmitted from the doorphone master unit 210 and data received by the doorphone master unit 210.

  A cable connection unit 223 as a wired connection detection unit is a module into which a connector of a LAN cable connected to the wired router 230 is inserted, and when the LAN cable connector is inserted, between the doorphone master unit 210 and the wired router 230. Detects wired connection. Further, the cable connection unit 223 as the first communication unit, when the doorphone master unit 210 and the wired router 230 are connected, uses the connection destination information of the wired router 230 as the master unit connection router information, and the wired router 230. And it transmits to the smart phone 250 via the mobile network NW.

  When the door phone base unit 210 and the wireless router 240 are connected, the wireless LAN communication unit 222 is an electric device (for example, a smartphone 250) connected to the wireless router 240 via the wireless router 240 using the wireless LAN. Wireless communication with In addition, when the connection destination of the doorphone master unit 210 is switched from the wired router 230 to the wireless router 240, the wireless LAN communication unit 222 as the second communication unit uses the connection destination information of the wireless router 240 as the master unit connection router. Information is transmitted to the smartphone 250 via the wireless router 240.

  The touch panel 225 as a display input unit displays an image picked up by the entrance child device 260 and displays operation buttons, and accepts various touch operations from the user, for example.

  The operation button 227 is a hard switch pressed by the user, and accepts various operations such as a call start and a call end, for example.

  The speaker 226 outputs, for example, a visitor's voice collected by the entrance cordless handset 260 or a person's voice picked up by the doorphone slave phone 265.

  The microphone 228 inputs (sound collection), for example, speech uttered by the user of the doorphone master unit 210. Note that the speaker 226 and the microphone 228 are used, for example, at the time of a call with the entrance slave device 260 and the door phone slave device 265.

  The entrance child device 260 is connected to the door phone parent device 210 by wire. Further, the entrance slave unit 260 may be wirelessly connected to the doorphone master unit 210 using a wireless communication method such as DECT (Digital Enhanced Cordless Telecommunications).

  The entrance child device 260 includes a microphone, a speaker, and a camera. When a call button is pressed by a visitor, the entrance child device 260 transmits a visitor image captured by the camera to the door phone parent device 210. Moreover, the entrance cordless handset 260 enables the telephone call with the user in a house with a microphone and a speaker.

  The door phone slave unit 265 as an example of an electrical device is wirelessly connected to the door phone master unit 210 using a wireless communication method such as DECT, and can communicate with the door phone master unit 210. Calls can also be made with the front door slave unit 260 connected to the door phone master unit 210 via the door phone master unit 210.

  The wired router 230 has a router function with respect to the connection with the doorphone master unit 210, and relays connection and communication to the Internet network (not shown) of the doorphone master unit 210 and other electrical devices connected to the wired router 230. .

  The wired router 230 may or may not have a modem function. In any case, the wired router 230 is also connected to the mobile network NW, and the smartphone 250 connected to the doorphone master unit 210 and the mobile network NW. It also relays communications between them.

  Also, the wired router 230 is connected to the wireless router 240 in a wired manner (that is, a LAN cable), and performs a relay process for connecting an electrical device (for example, the smartphone 250) connected to the wireless router 240 to the Internet network.

  The wireless router 240 is connected to the wired router 230 by wire (that is, a LAN cable), and connects the doorphone master unit 210 and the smartphone 250 as an access point by a wireless LAN.

  A smartphone 250 as an example of a mobile phone terminal can be connected to the intercom base unit 210 via a mobile network NW and a wired router 230. The smartphone 250 can also be connected to the doorphone master unit 210 via the wireless router 240 using a wireless LAN. The mobile phone network includes 4G (4th generation) wireless communication schemes such as 3G (3rd Generation), HSPA (High Speed Packet Access), LTE (Long Term Evolution), and the like.

  FIG. 3 is a block diagram illustrating an example of the internal configuration of the smartphone 250 in detail. The smartphone 250 includes a control unit 251, a memory 252, a changeover switch 253, a wireless LAN communication unit 254, a mobile network wireless unit 255, an audio interface (I / F) 256, a speaker 257, and a microphone 258. The display 259 and the touch panel 264 are included.

  The control unit 251 operates when a processor (not shown) executes the OS of the smartphone 250 and a program that operates on the OS, and controls the operation of each unit of the smartphone 250. As described above, the processor is configured using, for example, a CPU, MPU, DSP, or FPGA. The control unit 251 includes at least a registration unit 261, a wireless connection switching unit 262, and a connection unit 263.

  The registration unit 261 controls registration of information (connection destination information) regarding a connection destination electrical device communicating with the smartphone 250 in the memory 252. For example, when the registration unit 261 communicates directly with the doorphone master unit 210, the registration unit 261 is mutually unique with the doorphone master unit 210 in order to register the connection destination information of the doorphone master unit 210 in the memory 252. Exchange a unique ID (for example, BSSID), authentication information (for example, a password corresponding to BSSID), and the like.

  In addition, the smartphone 250 further includes a short-range wireless communication unit (not shown). By using the short-range wireless communication unit, for example, near field communication (NFC) or Bluetooth (registered trademark), Wireless communication can be performed directly with the doorphone master unit 210. Similarly, the smartphone 250 can directly perform wireless communication with the doorphone master unit 210 when the doorphone master unit 210 is in an access point mode for functioning as an access point. In these cases, when the registration unit 261 exchanges the mutual device IDs used during direct communication between the doorphone master unit 210 and the smartphone 250 and receives a device ID (for example, BSSID) from the doorphone master unit 210, 252 is registered.

  Here, the wireless LAN communication unit 254 connects the connection destination information (for example, BSSID of the wireless router 240) transmitted from the doorphone parent device 210 when the smartphone 250 and the doorphone parent device 210 are connected via the wireless router 240. Is output to the control unit 251. The registration unit 261 registers connection destination information of the access point in the memory 252 when the smartphone 250 is connected to a wireless LAN access point (for example, the wireless router 240).

  The wireless connection switching unit 262 acquires connection destination information (specifically, the BSSID of the wireless router 240 as an access point) transmitted from the wireless router 240 when the doorphone master unit 210 and the smartphone 250 are connected. Then, it is determined whether or not the connection destination information matches the connection destination information registered in the memory 252 (that is, the connection destination information of the wireless LAN access point).

  Connection unit 263 switches the wireless connection mode between doorphone parent device 210 and smartphone 250 to either the out-of-home connection mode or the in-home connection mode according to the determination result of wireless connection switching unit 262. Specifically, the connection unit 263 switches the wireless connection mode between the doorphone parent device 210 and the smartphone 250 to the out-of-home connection mode when the wireless connection switching unit 262 obtains a mismatch determination result. On the other hand, when the wireless connection switching unit 262 obtains a coincidence determination result, the connection unit 263 switches the wireless connection mode between the doorphone parent device 210 and the smartphone 250 to the home connection mode.

  The memory 252 as an example of the storage unit is configured using a semiconductor memory such as a RAM, a ROM, or a flash memory, and holds data and programs necessary for the operation of the control unit 251.

  Next, operation | movement of the door phone system 200 of this embodiment is demonstrated. As a premise for the following description, it is assumed that door phone base unit 210 and smartphone 250 do not exchange connection destination information with each other, and smartphone 250 is not registered as a connection destination of door phone base unit 210.

  First, as shown in FIG. 4, an operation for newly registering (in other words, adding) the smartphone 250 as a connection destination to the doorphone master unit 210 that is already connected to the wired router 230 is performed. Is called. Specifically, door phone base unit 210 is set to an access point mode (AP mode) for operating as an access point, for example, by a user operation, and when user operation is performed on smartphone 250, for example, smartphone 250 (See FIG. 4). FIG. 4 is an explanatory diagram illustrating an example in which the door phone parent device 210 is operated in the access point mode, and the smartphone 250 is newly registered as a connection destination to the door phone parent device 210.

  As described above, door phone master unit 210 is directly connected to smartphone 250 when operating in the access point mode. The doorphone master unit 210 may not operate in the access point mode, and may be directly connected to the smartphone 250 by, for example, near field communication (NFC) or Bluetooth (registered trademark).

  When the doorphone master unit 210 is directly connected to the smartphone 250, the doorphone master unit 210 transmits BSSID information, which is a wireless LAN network identifier when the doorphone master unit 210 operates as an access point, to the smartphone 250. The smartphone 250 receives the BSSID information transmitted from the doorphone master unit 210 and registers the BSSID information in the memory 252.

  For example, as shown in FIG. 4, when the intercom master unit 210 operates as a wireless LAN access point, it holds BSSID “XXXX” as a wireless LAN network identifier. Accordingly, the BSSID “XXXX” of the doorphone master unit 210 is registered in the memory 252 of the smartphone 250. In addition, the smartphone 250 transmits its own information (for example, device ID) to the doorphone parent device 210. Therefore, information (for example, device ID) of the smartphone 250 is registered in the memory 216 of the doorphone master unit 210. In this way, by directly wirelessly connecting the smartphone 250 and the doorphone master unit 210 using the access point mode (AP mode), the doorphone master unit 210 can connect to itself (specifically, the smartphone). 250) information (connection destination information) can be easily registered, and the smartphone 250 can easily register connection destination information of the doorphone parent device 210.

  FIG. 5 is a sequence diagram illustrating in detail an example of the connection destination synchronization operation in the door phone system 200 according to the first embodiment. As a premise of the description of FIG. 5, as described with reference to FIG. 4, the doorphone master unit 210 and the smartphone 250 have already exchanged connection destination information. Therefore, the BSSID information (specifically, the BSSID “XXXX” shown in FIG. 4) when the doorphone parent device 210 operates as an access point is registered in the memory 252 of the smartphone 250. In addition, since the wired router 230 is not normally assigned a unique BSSID, the wired router 230 holds information of BSSID “----”. Further, the wireless router 240 holds information of BSSID “AAAA”.

  In FIG. 5, when the smartphone 250 is added to the door phone system 200, the door phone master unit 210 is connected to the wired router 230 via a wired LAN at the stage of home construction accompanying home construction or renovation (T1). The wired router 230 operates in the router mode, and connects an electrical device (for example, the door phone master unit 210) connected to the wired router 230 to a wide area network such as the Internet. Therefore, the intercom master unit 210 can be connected to the smartphone 250 via the wired router 230 and the mobile network NW connected to the wired router 230 by connecting to the wired router 230.

  The doorphone master unit 210 is wired to the wired router 230 to obtain information on the BSSID “————” of the wired router 230. At this point, the BSSID of the doorphone master unit 210 is changed from “XXXX” to “ ----". Note that at this stage, the wireless router 240 is not installed in the home where the door phone system 200 is introduced, and is described as being added after the above-described home construction. Accordingly, the wired router 230 is not connected to the wireless router 240 at this time.

  The doorphone master unit 210 connected to the wired router 230 is wirelessly connected to the smartphone 250 via the wired router 230 and the mobile network NW, and is synchronized with the connection destination information (that is, BSSID information) of the doorphone master unit 210 (that is, the BSSID). To be shared in real time), the smartphone 250 is notified (see T2, reference L1 in FIG. 1). Hereinafter, information (for example, device ID, BSSID) of a connection destination (router) to which the doorphone parent device 210 is connected is referred to as “parent device information”. In this parent device information, information of BSSID “————” of the wired router 230 connected to the doorphone parent device 210 in step T1 is described. Accordingly, when the smartphone 250 receives the notification from the doorphone master unit 210, the connection destination information of the communication partner is changed from the BSSID “XXXX” of the doorphone master unit 210 registered in the memory 252 to the BSSID “−” of the wired router 230. Update to ― ― ― ”. Hereinafter, notification of the updated parent device information is referred to as parent device information update notification.

  Thereafter, when a wireless router 240 newly purchased by the user is newly registered in the door phone system 200, for example, the wireless router 240 is connected to the wired router 230 after being set to the access point mode by the user operation. The wireless router 240 operates as an access point in a wireless LAN network. That is, the wireless router 240 operates not in the router mode but in the access point mode, and transmits a known predetermined signal including information of its own BSSID “AAA” to the surroundings.

  When the smartphone 250 receives the predetermined signal transmitted from the wireless router 240, the smartphone 250 wirelessly connects to the wireless router 240 via a wireless LAN (T3). Hereinafter, as a wireless LAN, for example, a general-purpose WiFi (registered trademark) communication system network is used, but the network is not limited to this communication system network. The smartphone 250 acquires the BBSID “AAAA” information of the wireless router 240 based on the predetermined signal described above, and therefore updates the registration content of the memory 252 to the BSSID “AAA” of the wireless router 240 as the connection destination information of the communication partner.

  The smartphone 250 receives the BSSID “————” (that is, the BSSID of the wired router 230 to which the doorphone master unit 210 is connected) acquired by the base unit information update notification, and the connection destination information (BSSID) of its own wireless connection destination. ) Is matched (T4). At this time, the smartphone 250 is wirelessly connected to the BSSID “————” (that is, the BSSID of the wired router 230 to which the doorphone master unit 210 is connected) acquired by the base unit information update notification. It is determined that the BSSID “AAAA” of the wireless router 240 does not match. For this reason, the smart phone 250 determines that the wireless communication mode between the doorphone master unit 210 and the smart phone 250 is the out-of-home connection mode (see reference numeral L2 in FIG. 1). The smartphone 250 notifies the intercom base unit 210 of the determination result indicating that the connection mode is outside the home via the mobile network NW and the wired router 230 (T5).

  After that, when the doorphone master unit 210 receives a connection destination switching operation by the user (T6), the doorphone master unit 210 is connected to the wireless router 240 connected to the wired router 230 via a wireless LAN. As a result, door phone base unit 210 acquires BSSID “AAAA” of wireless router 240 as its connection destination information (T7). The intercom base unit 210 describes the BSSID “AAAA” acquired in step T7 in the base unit information, and updates the base unit information. The intercom base unit 210 notifies the updated base unit information to the smartphone 250 (T2, see reference numeral L1 in FIG. 1).

  The smartphone 250 has the BSSID “AAAA” (that is, the BSSID of the wireless router 240 to which the doorphone master unit 210 is connected) acquired by the base unit information update notification and the connection destination information (BSSID) of its own wireless connection destination. It is determined whether or not they match (T9). At this time, the smartphone 250 has the BSSID “AAAA” (that is, the BSSID of the wireless router 240 to which the doorphone master unit 210 is connected) acquired by the base unit information update notification and the wireless router 240 to which the smartphone 250 is wirelessly connected. It is determined that the BSSID “AAAAA” matches. For this reason, the smart phone 250 determines that the wireless communication mode between the doorphone parent device 210 and the smart phone 250 is the in-home connection mode. The smartphone 250 notifies the intercom master unit 210 of the determination result indicating that it is in the home connection mode via the wireless router 240 (T10).

  Note that the timing at which the smartphone 250 determines its wireless connection destination is not limited to the time when the parent device information update notification is received from the doorphone parent device 210 via the wired router 230 and the mobile network NW. For example, it may be at the elapse of a certain time after receiving this parent device information update notification, or may be determined periodically, or when a predetermined user operation is performed on the smartphone 250, etc. It doesn't matter.

  In this way, each time the doorphone master unit 210 and the smartphone 250 add, change, or delete information about their own connection destinations (including wireless connection destinations), the connection destination ( For example, information (for example, BSSID) of the wired router 230 and the wireless router 240) is synchronized. WebSocket is a communication standard (protocol) that generally performs bidirectional communication between a server and a client. The synchronization means that the doorphone base unit 210 and the smartphone 250 share the wireless connection destination information dynamically added / changed / deleted in real time. The addition is to add a new wireless router. The change is to replace the wireless router. Deletion is to disable the wireless router.

  As described above, in the door phone system 200 according to the first embodiment, for example, the door phone master unit 210 capable of wireless communication with the door phone slave unit 265 installed in the home and the wired router 230 between the door phone master unit 210 and And a smartphone 250 capable of communicating via the wireless router 240. The intercom master unit 210 is connected to the wired router 230, and transmits information of the wired router 230 to the smartphone 250 via the wired router 230 as parent unit connection router information (for example, BSSID information). The smartphone 250 stores the BSSID information transmitted from the doorphone master unit 210 in the memory 252. The smartphone 250 stores the BSSID information of the wireless router 240 in the memory 252 when connected to the wireless router 240 by a user operation, for example. When the connection destination of the doorphone master unit 210 is switched from the wired router 230 to the wireless router 240, the doorphone master unit 210 acquires the BSSID information of the wireless router 240, and further uses the BSSID information as the master unit connection router. Information is transmitted to the smartphone 250 via the wireless router 240. When the information of the wireless router 240 stored in the memory 252 matches the BSSID information transmitted from the doorphone master unit 210, the smartphone 250 sets the wireless connection mode to the doorphone master unit 210 in the home connection mode. Connect wirelessly.

  Thereby, in the home, the intercom base unit 210 establishes a wireless connection with the smartphone 250 connected to the wireless router 240 via the wireless router 240 without using the wired router 230 and the mobile network NW. be able to. In addition, the user simply sets the wireless router 240 to the access point mode and connects the doorphone master unit 210 to the wireless router 240, so that the wireless connection mode between the doorphone master unit 210 and the smartphone 250 can be easily set to the home connection mode. Can be operated. Accordingly, the number of wireless connection destinations of the doorphone master unit 210 can be easily increased even after housing construction accompanying home construction or renovation, and wireless LAN clients in the doorphone system 200 (that is, wireless connection to the doorphone master unit 210 is possible). Additional electrical equipment).

  Further, even when the user purchases a new wireless router, the doorphone master unit 210 and the smartphone 250 can be easily connected to each other simply by wirelessly connecting the doorphone master unit 210 and the smartphone 250 to the new wireless router. . Thereby, the smart phone 250 can be operated in the in-home connection mode without re-registering the smart phone 250 in the door phone master unit 210.

  That is, when the connection destination information (for example, BSSID information) for connecting to the wireless router 240 capable of wireless communication with the smartphone 250 is registered in the doorphone master unit 210 in the home, the doorphone master unit 210 and the smartphone. The BSSID information of the wireless router 240 can be shared with 250. Accordingly, the doorphone master unit 210 and the smartphone 250 can perform wireless communication with each other via the wireless router 240. For example, even when the user uses the smartphone 250 in the home, the doorphone master unit 210 and the smartphone 250 can communicate with the doorphone master unit 210 via the wireless router 240. Wireless communication is possible. Thereby, the intercom system 200 can improve the user's usability in that the communication cost is suppressed and the home connection mode can be used.

  In addition, the smartphone 250 stores the wireless router 240 information stored in the memory 252 and the BSSID information transmitted from the doorphone master unit 210 (that is, the identifier of the network using the router to which the doorphone master unit 210 is currently connected). Even if the information does not match, wireless connection is established with the doorphone master unit 210 in the outside connection mode. Even when connected in the out-of-home connection mode, the user can perform certain operations on the doorphone parent device 210 from the smartphone 250. Further, in the case of the out-of-home connection mode, it is assumed that the user is in a place away from the house. In the out-of-home connection mode, operations that can be performed are limited as compared with the in-home connection mode, and the convenience of the user may be improved. For example, by disabling unlocking, it is possible to avoid a situation in which a user accidentally unlocks and a crime is likely to occur.

  Further, door phone base unit 210 periodically acquires BSSID information indicating information of a router currently connected to door phone base unit 210 and transmits the information to smartphone 250. Thereby, the smart phone 250 can acquire the BSSID information regarding the latest connected router even when the information of the router to which the doorphone master unit 210 is connected is changed.

  For example, when detecting a connection destination switching operation by a user, door phone base unit 210 transmits BSSID information indicating information of a router connected to door phone base unit 210 to smartphone 250. Thereby, the smart phone 250 can acquire BSSID information from the doorphone parent device 210 at an appropriate timing when the doorphone parent device 210 switches the connection destination in accordance with the connection destination switching operation by the user.

(Background and issues leading to the second embodiment)
In the configuration of Patent Document 1 described above, the home base unit and the mobile phone always perform wireless communication via the mobile phone network. For example, when the user uses the mobile phone at home, the mobile phone attempts to respond to the visitor. Then, communication costs associated with the use of the mobile phone network are inevitably generated. In particular, when the image data picked up by the camera of the entrance unit and the voice data collected by the microphone of the entrance unit are transmitted together, the amount of communication data increases, so the communication cost becomes high.

  On the other hand, in the same manner as in Patent Document 1, in order to suppress an increase in communication cost, a mobile phone is used as a slave unit for the interphone master unit described above (that is, an interphone master unit connected to a wired router at the time of housing construction). Consider using a wireless connection. For example, an interphone base unit is connected to a plurality of wireless routers via a wired router connected by a wired LAN, and a mobile phone that is a target of wireless connection as a slave unit of the interphone base unit is connected to only one of the wireless routers. Assume a case of wireless connection. In this situation, the intercom master unit has registered only the information of the wired router, and has not registered the information of the wireless router connected to the wired router. For this reason, the interphone base unit and the mobile phone cannot be wirelessly connected, and the interphone base unit still has to be connected to the mobile phone via the mobile phone network, which makes it difficult to suppress an increase in communication costs. It was. Further, when the interphone base unit is wirelessly connected to a mobile phone via a mobile phone network, the functions that can be used in the mobile phone are restricted from the viewpoint of security, and the user convenience is not good.

  Therefore, in the second embodiment, even in a situation where the wireless router to which the mobile phone terminal is wirelessly connected and the parent device are not directly connected in the house, the connection between the mobile phone terminal and the wireless router is not changed, By registering the information of the wireless router via the wired router connected to the parent device, the parent device and the mobile phone terminal can communicate with each other wirelessly via the wireless router, increasing communication costs. An example of a home network system, a telephone device, and a connection destination synchronization method that suppresses and improves user convenience will be described.

(Second Embodiment)
In the second embodiment, as in the first embodiment, for example, an interphone system (door phone system) installed at the time of housing construction will be described as an example. In the first embodiment, the network configuration in which one wireless router 240 is connected to the wired router 230 has been described as an example. However, in the second embodiment, the wired router 230 includes a plurality of wireless routers (wireless routers 240A, 240A, 240B) will be described as an example.

  In addition, since the configuration of each device in the door phone system of the second embodiment is almost the same as that of the first embodiment, the same reference numerals are used for the same components as those of the first embodiment, so that Description is omitted.

  FIG. 6 is a diagram illustrating a schematic example of the configuration and operation of the door phone system 200A of the second embodiment. In the description of FIG. 6, description of the same content as that of FIG. 1 is simplified or omitted, and different content is described.

  In FIG. 6, in the door phone system 200 </ b> A of the second embodiment, the door phone parent device 210 is connected to the wired router 230. A plurality of wireless routers 240A and 240B are connected to the wired router 230 via a wired LAN. The BSSID of the wireless router 240A is “AAAA”, and the BSSID of the wireless router 240B is “BBBB”. In order to simplify the description of the present embodiment, the case where there are two wireless routers 240A and 240B will be described as an example, but the same applies when there are three or more wireless routers.

  Next, the operation of the door phone system 200A of the present embodiment will be described.

  FIG. 7 is a sequence diagram illustrating in detail an example of the connection destination synchronization operation in the door phone system 200A of the second embodiment. As a premise of the description of FIG. 7, the intercom base unit 210 can be connected to the smartphone 250 via the wired router 230 and the mobile network NW. Therefore, the BSSID “————” of the wired router 230 is registered in the memory 252 of the smartphone 250. Furthermore, a plurality of wireless routers (specifically, wireless routers 240A and 240B) are connected to the wired router 230. The wireless router 240A holds information of BSSID “AAAA”, and the wireless router 240B holds information of BSSID “BBBB”.

  In FIG. 7, first, the AP search unit 214 of the intercom master unit 210 uses, for example, the UPnP (Universal Plug and Play) protocol to the wired router 230 with an access point ( AP search is requested (T21). This AP search request may be periodically made, for example, after a certain period of time (for example, 5 minutes), or may be made in accordance with an operation instruction from the user. In the present embodiment, the AP search request is described as being periodically performed. In response to the AP search request from the intercom base unit 210, for example, the wireless router 240A returns a response to the intercom base unit 210 (T22). This response is transmitted from the wireless router 240 </ b> A to the intercom master unit 210 via the wired router 230.

  The intercom base unit 210 requests the wireless router 240A that has made the AP search response, via the wired router 230, to acquire a BSSID that is an identifier of a wireless network that uses the wireless router 240A as an access point (T23, (See symbol L21A in FIG. 6). When receiving the request from the intercom master unit 210 from the wired router 230, the wireless router 240A acquires the BSSID corresponding to the request and responds to the request (T24). This response includes the BSSID “AAAA” of the wireless router 240A. The intercom base unit 210 updates the BSSID “AAAA” of the wireless router 240A by describing it in the base unit information, and notifies the updated base unit information to the smartphone 250 via the wired router 230 and the mobile network NW ( T25). As a result, when the smartphone 250 receives the notification from the intercom master unit 210, the connection destination information of the communication partner is changed from the BSSID “————” of the wired router 230 registered in the memory 252 to the BSSID of the wireless router 240A. Update to “AAAA”.

  Here, it is assumed that the wireless router 240B is wirelessly connected to the smartphone 250 via a wireless LAN after being set to the access point mode by a user operation, for example. In this case, similarly to the first embodiment, the wireless router 240B transmits a known predetermined signal including information of its own BSSID “BBBB” to the surroundings.

  When the smartphone 250 receives the predetermined signal transmitted from the wireless router 240B, the smartphone 250 wirelessly connects to the wireless router 240B through the wireless LAN (T26). Since the smartphone 250 acquires the information of the BSSID “BBBB” of the wireless router 240B by the above-described predetermined signal, the BSSID “BSSID of the wireless router 240A registered in the memory 252 as the connection destination information of the current wireless connection destination thereof. "AAAAA" is updated to BSSID "BBBB" of the wireless router 240B.

  The smartphone 250 has its current wireless connection destination in the BSSID “AAAA” (that is, the BSSID of the wireless router 240A that responds to the AP search request from the doorphone parent device 210) acquired by the parent device information update notification. It is determined whether or not the connection destination information (BSSID) is included (T27). At this time, the smartphone 250 cannot recognize that the wireless router 240B exists in the wired LAN to which the doorphone master unit 210 belongs. In other words, the BSSID described in the base unit information notified from the doorphone base unit 210 describes the BSSID “AAAA” of the wireless router 240A, and the BSSID of the wireless router 240B to which the smartphone 250 is currently wirelessly connected. “BBBB” is not described, and these BSSIDs do not match. In this case, the smartphone 250 determines that the wireless connection mode with the doorphone master unit 210 is the out-of-home connection mode (T27). The smartphone 250 notifies the intercom base unit 210 of the determination result indicating that it is in the outside connection mode via the mobile network NW and the wired router 230 (T28).

  After step T28, it is assumed that the wireless router 240B returns a response to the doorphone master unit 210 in response to the AP search request from the doorphone master unit 210 (T29). This response is transmitted from the wireless router 240B to the intercom master unit 210 via the wired router 230. In FIG. 7, this response is illustrated as being delayed from the time (T22) when the wireless router 240A returns the response, but this time difference may be short or long. Further, for convenience of explanation of FIG. 7, the wireless router 240A responds first, but the wireless router 240B may respond first.

  The intercom base unit 210 requests the wireless router 240B that has made the AP search response, through the wired router 230, to acquire a BSSID that is an identifier of a wireless network that uses the wireless router 240B as an access point (T30, (See reference numeral 21B in FIG. 6). In response to this request, the wireless router 240B obtains a BSSID corresponding to itself and responds (T31). This response includes the BSSID “BBBB” of the wireless router 240B. The intercom base unit 210 updates the BSSID “BBBB” of the wireless router 240B by adding it to the base unit information, and notifies the smartphone 250 of the updated base unit information via the wired router 230 and the mobile network NW ( T32, see symbol L22 in FIG. 6). As a result, when the smartphone 250 receives the notification from the intercom master unit 210, the connection destination information of the communication partner is set to the BSSID “AAA” of the wireless router 240A registered in the memory 252, and the BSSID “AAAA of the wireless router 240A. And the BSSID “BBBB” of the wireless router 240B.

  The smartphone 250 has its own BSSID “AAAA, BBBB” (that is, each BSSID of the wireless routers 240A, 240B responding to the AP search request from the doorphone master unit 210) acquired by the base unit information update notification. It is determined whether or not the connection information (BSSID) of the current wireless connection destination is included (T33). At this time, the smartphone 250 can recognize that the wireless router 240B exists in the wired LAN to which the doorphone master unit 210 belongs. In other words, the BSSID described in the base unit information notified from the intercom base unit 210 includes “AAAA” of the wireless router 240A and “BBBB” of the wireless router 240B, and the smartphone 250 is currently wirelessly connected. The BSSID “BBBB” of the wireless router 240B is included. In this case, the smartphone 250 determines that the wireless connection mode with the doorphone master unit 210 is the in-home connection mode (T33). The smartphone 250 notifies the doorphone parent device 210 of the determination result indicating that it is in the home connection mode via the wireless router 240B (see T34, symbol L23 in FIG. 6).

  FIG. 8 is a flowchart for explaining in detail an example of an operation procedure of the intercom base unit 210 according to the second embodiment. Door phone base unit 210 is activated when the power is turned on, and starts the operation shown in FIG.

  In FIG. 8, first, the intercom master unit 210 sets a search timer (not shown) in the control unit 211 to an initial value (S1). The intercom base unit 210 broadcasts a search request for an access point (AP) connected to the wired router 230 via a wired LAN to the wired router 230 using the UPnP (Universal Plug and Play) protocol (S2). ). In the present embodiment, there are two wireless routers 240A and 240B in order to simplify the description, but any number may be used as described above.

  The intercom master unit 210 determines whether or not a response waiting timer (not shown) in the control unit 211 has expired (S3). The response waiting timer is set to a predetermined value that is smaller than the initial value of the search timer. This predetermined value is a reasonable time when responses from all access points within the same LAN connected to the wired router 230 are returned to the intercom master unit 210, for example. If the response waiting timer has expired (S3, YES), the process of door phone master unit 210 proceeds to step S10 described below.

  On the other hand, when the response waiting timer has not expired (S3, NO), door phone master unit 210 determines whether or not there is an AP search response from wireless routers 240A and 240B as access points (S4). If there is no AP search response (S4, NO), the process of step S4 is continued until the response waiting timer expires, so the process of the doorphone master unit 210 returns to step S3.

  On the other hand, if there is an AP search response in step S4 (S4, YES), door phone master unit 210 transmits a BSSID acquisition request by unicast to the AP search response transmission source (S5). A BSSID is obtained from a certain wireless router (S6). The intercom base unit 210 determines whether or not the acquired BSSID has been recorded in the BSSID list stored in the memory 216 (S7). When it has been recorded (S7, YES), the process returns to the processing step S3 of the doorphone master unit 210. This is because an AP search response from another access point may be returned to the intercom base unit 210 until the response waiting timer expires.

  On the other hand, if not recorded (S7, NO), door phone master unit 210 adds the BSSID acquired in step S6 to BSSID list LT stored in memory 216 (S8). Furthermore, door phone parent device 210 transmits parent device information including BSSID list LT to smartphone 250 as a parent device information update notification (S9).

  After step S9, the door phone master unit 210 returns to step S3. This is because an AP search response from another access point may be returned to the intercom base unit 210 until the response waiting timer expires.

  When the response waiting timer has timed out (S3, YES), door phone parent device 210 counts the search timer (S10). Then, intercom base unit 210 determines whether the search timer after counting up reaches a preset value (for example, 5 minutes) and time is up (S11). If the time is not up (S11, NO), the process of door phone master unit 210 returns to step S10.

  On the other hand, when the time is up (S11, YES), the process returns to the processing step S1 of the doorphone master unit 210. This operation is repeated until the doorphone master unit 210 is turned off.

  FIG. 9 is a flowchart illustrating in detail an example of an operation procedure of the smartphone 250 according to the second embodiment. The smartphone 250 is activated when the power is turned on, and starts the operation illustrated in FIG.

  In FIG. 9, the smartphone 250 determines whether or not a parent device information update notification has been received from the door phone parent device 210 (S <b> 21). When the parent device information update notification is received (S21, YES), the smartphone 250 updates the BSSID described in the parent device information by adding it to the BSSID list LT stored in the memory 216 (S22).

  The smartphone 250 determines whether it is connected to the wireless LAN (in other words, whether it is wirelessly connected to any wireless router connected to the wired router 230) (S23). When not connected to the wireless LAN (S23, NO), the smartphone 250 ends the operation shown in FIG. On the other hand, when connected to the wireless LAN (S23, YES), the process of the smartphone 250 proceeds to step S26.

  Further, when the base unit information update notification has not been received from the intercom base unit 210 in step S21 (S21, NO), the smartphone 250 is connected to the wireless LAN (in other words, connected to the wired router 230). Whether any wireless router is wirelessly connected) is determined (S24).

  When not connected to the wireless LAN (S24, NO), the smartphone 250 determines whether connection to the wireless LAN is started (S25). The timing of starting connection to the wireless LAN may be periodically performed or may be performed by a user operation. When the connection to the wireless LAN is not started (S25, NO), the smartphone 250 ends the operation illustrated in FIG. In this case, the smartphone 250 is not added to the door phone system 200A.

  On the other hand, when the connection to the wireless LAN is started (S25, YES), the smartphone 250 indicates that the BSSID of the current wireless LAN connection destination of the smartphone 250 (that is, the wireless router 240A or the wireless router 240B in FIG. 6) is stored in the memory. It is determined whether or not it is included in the BSSID list LT stored in 216 (S26). When the BSSID of the wireless LAN connection destination is included in the BSSID list LT (S26, YES), the smartphone 250 determines that the wireless connection mode with the doorphone master unit 210 is the home connection mode, and the doorphone master unit A determination result indicating that it is the home connection mode is transmitted to 210 (S27). Thereafter, the smartphone 250 ends the operation illustrated in FIG.

  On the other hand, when the BSSID of the wireless LAN connection destination is not included in the BSSID list LT (S26, NO), the process of the smartphone 250 proceeds to step S29.

  If the wireless LAN is connected in step S24 (S24, YES), the smartphone 250 determines whether or not the connection of the wireless LAN is terminated (S28). When the wireless LAN connection is terminated (S28, YES), the smartphone 250 terminates the operation illustrated in FIG. In this case, the smartphone 250 is released from the door phone system 200A.

  On the other hand, when the wireless LAN connection is not terminated (S28, NO), or when the BSSID of the wireless LAN connection destination is not included in the BSSID list LT (S26, NO), the smartphone 250 is connected to the doorphone master unit 210. Is determined to be an out-of-home connection mode, and a determination result indicating that it is an out-of-home connection mode is transmitted to the intercom base unit 210 (S29). Thereafter, the smartphone 250 ends the operation illustrated in FIG.

  As described above, the door phone system 200A of the second embodiment is configured such that the door phone master unit 210 capable of wireless communication with the door phone slave unit 265 installed in the home and the wired router 230 or wireless between the door phone master unit 210 and the door phone master unit 210. And a smartphone 250 capable of communicating via the routers 240A and 240B. Door phone base unit 210 is directly connected to wired router 230, and acquires the BSSID of wired router 230 and the BSSIDs of a plurality of wireless routers 240A and 240B connected to the wired router. The intercom base unit 210 transmits the BSSID of the acquired wired router 230 and the BSSIDs of the plurality of wireless routers 240A and 240B connected to the wired router to the smartphone 250 as a BSSID list (base unit connection router information). The smartphone 250 stores the BSSID list transmitted from the doorphone parent device 210 in the memory 252. When the smartphone 250 is connected to one of the wireless routers, and the BSSID of the wireless router 240A or the wireless router 240B is included in the BSSID list transmitted from the doorphone master unit 210, the smartphone 250 Wirelessly in the home connection mode.

  Thereby, in the house, the intercom master unit 210 can be connected to the smartphone 250 connected to one of the wireless routers 240A and 240B connected to the wired router 230 without using the wired router 230 and the mobile network NW. Can be connected wirelessly. In addition, the user simply sets the wireless routers 240 </ b> A and 240 </ b> B to the access point mode, connects the wireless router to the smartphone 250, and connects the wireless connection mode between the doorphone master unit 210 and the smartphone 250 to the home connection. Can be operated in mode. Therefore, the number of wireless connection destinations of the doorphone master unit 210 can be easily increased, and the doorphone system 200A can be easily added. Further, when a plurality of wireless routers exist in the wireless LAN to which the doorphone master unit 210 belongs, the smartphone 250 can be operated in the home connection mode regardless of which wireless router is connected.

  That is, even in a situation where the wireless router (for example, the wireless router 240B) to which the smartphone 250 is wirelessly connected and the door phone master unit 210 are not directly connected in the home, the smartphone 250 and the wireless router (for example, the wireless router 240B) The wireless router 240B is connected between the doorphone master unit 210 and the smartphone 250 by registering the information of the wireless router via the wired router 230 connected to the doorphone master unit 210 without changing the connection of the doorphone master unit 210. Wireless communication with each other. As a result, the door phone system 200A can suppress an increase in communication costs and can improve user convenience in that the home connection mode can be used.

  Furthermore, it is assumed that there are a plurality of wireless routers (for example, wireless routers 240 </ b> A and 240 </ b> B) under the wired router 230 and some of the wireless routers are not directly connected to the doorphone master unit 210. Even in this case, the door phone base unit 210 searches for the BSSIDs of those wireless routers and adds them to the BSSID list, so that the smartphone 250 can force other wireless routers (for example, the wireless router 240B) to be connected to other wireless routers. Even if the wireless connection to the router (for example, the wireless router 240A) is not switched, it is possible to connect to any wireless router (including the wireless router that is the current connection destination) in the BSSID list. It becomes possible to operate.

  In addition, even if the BSSID of the wireless router 240 </ b> A or the wireless router 240 </ b> B stored in the memory 252 is not included in the BSSID list transmitted from the doorphone master unit 210, the smartphone 250 communicates with the doorphone master unit 210 outside the home. Connect wirelessly in connection mode. Even when connected in the out-of-home connection mode, the user can perform certain operations on the doorphone parent device 210 from the smartphone 250. Further, in the case of the out-of-home connection mode, it is assumed that the user is in a place away from the house. In the out-of-home connection mode, operations that can be performed are limited as compared with the in-home connection mode, and the convenience of the user may be improved. For example, by disabling unlocking, it is possible to avoid a situation in which a user accidentally unlocks and a crime is likely to occur.

  Moreover, the intercom base unit 210 periodically acquires the BSSID of the wired router 230 and the BSSIDs of the wireless routers 240A and 240B connected to the wired router 230. Accordingly, door phone base unit 210 can automatically acquire the BSSID of the wireless router even when the wireless router is newly connected to wired router 230 by the user. Therefore, the doorphone master unit 210 can be updated to the latest BSSID list, and a wireless router can be easily added to the doorphone system 200A.

  In addition, door phone parent device 210 periodically transmits a BSSID list to smartphone 250. Thereby, the smart phone 250 can acquire the latest BSSID list from the doorphone master unit 210, and can easily connect with the doorphone master unit 210 in the home connection mode by connecting to any wireless router included in the BBSID list. Wireless connection is possible.

(Modification 1)
In each of the first and second embodiments described above, the door phone system has been described as an example of the home network system according to the present invention. In the following modification 1, an in-home monitoring system for monitoring the entrance and exit of people in the home will be described as an example.

  FIG. 10 is a diagram illustrating a schematic example of the configuration of the home monitoring system according to the first modification. FIG. 11 is a block diagram showing an example of the internal configuration of the parent device in the home monitoring system 5 shown in FIG. A home monitoring system 5 shown in FIG. 10 is installed in, for example, a user's home 8 and includes a base phone 10 of a fixed telephone, two cordless slaves 20A and 20B, and two cameras 30 (for example, an indoor camera 30A). , Surveillance camera 30B), various sensors 40 (for example, human sensor 40A, 40B, smoke sensor 40C, window sensor 40D), smart plug 80, sensor light 90, and smart phone 50. In addition, the various electric equipment which comprises this in-home monitoring system 5 is an example, and can be changed into a various aspect. For example, some of the electrical devices constituting the home monitoring system 5 include a refrigerator, a microwave oven, and an air conditioner that can wirelessly communicate with the parent device 10 (for example, wireless communication using the DECT wireless communication method described later). Home appliances such as the above may be included.

  Hereinafter, the components of the home monitoring system 5 will be sequentially described.

  The base unit 10 has a role as a gateway related to communication with various components of the home monitoring system 5. That is, the base unit 10 is a control device that controls the overall operation of the home monitoring system 5, and uses, for example, DECT (Digital Enhanced Cordless Telecommunications) wireless communication system, cordless handset 20A, 20B, camera 30, sensor 40, the smart plug 80, the sensor light 90, etc. are wirelessly connected so as to be capable of wireless communication.

  Master unit 10 is connected to fixed telephone network 85 by wire, and performs mediation processing to enable a call between cordless slave units 20A and 20B and another fixed telephone 800. Master unit 10 may directly make a call with another fixed telephone 800. Moreover, the main | base station 10 has a function which charges 20 A of cordless subunit | mobile_units inserted in the insertion port 10a.

  The cordless cordless handsets 20A and 20B are wirelessly connected to the parent device 10 by the DECT wireless communication method, and can perform wireless communication (including telephone calls) with the parent device 10. Hereinafter, when it is not necessary to distinguish between the two cordless slave units 20A and 20B, they are collectively referred to as the cordless slave unit 20.

  Various sensors 40 (for example, the human sensors 40A and 40B, the smoke sensor 40C, and the window sensor 40D) are wirelessly connected to the parent device 10 by the DECT wireless communication method. 10 and 11, for example, a window sensor 40D that detects opening / closing of a window, a smoke sensor 40C that detects smoke, and human sensors 40A and 40B that detect a person using infrared rays are used as sensors. Hereinafter, when it is not necessary to distinguish between these types of sensors, they are collectively referred to as sensors 40. As will be described later, an infrared sensor 313 incorporated in the camera 30 is also used as a human sensor.

  The two cameras (for example, the indoor camera 30A and the surveillance camera 30B) have a call function, are wirelessly connected to the base unit 10 using the DECT wireless communication method, and can make calls with the cordless slave units 20A and 20B. is there. 10 and 11, a surveillance camera 30B that images the outdoors and an indoor camera 30A that images the house 8 are used as the cameras. Hereinafter, when it is not necessary to distinguish between the types of cameras, the cameras 30 are collectively referred to.

  Smart plug 80 has a wireless communication function using DECT, and is wirelessly connected to base unit 10 using the DECT wireless communication method. The smart plug 80 supplies power to various electrical devices (for example, air conditioner, home appliance device, lighting device, camera 30, sensor 40) connected to the smart plug 80 according to the instruction transmitted from the base unit 10. Switch on or off the commercial AC power supply or DC power supply.

  The sensor light 90 detects the movement of a person in the monitoring area (for example, the user's home indoors, the garden in the home premises, the entrance), and lights up to illuminate the surroundings of the monitoring area when the surroundings are dark at night or the like. To do. The brightness of the sensor light 90 may be high enough to brightly illuminate the monitoring area, or low enough to be used as a warning light. The sensor light 90 has a wireless communication function using DECT, and is wirelessly connected to the parent device 10 using the DECT wireless communication method. The sensor light 90 can arbitrarily set the operating conditions of the sensor light 90 from the smartphone 50 via the parent device 10. Details of the sensor light 90 will be described later.

  Needless to say, the sensor light 90 is not limited to a crime prevention use in the user's home site, and may be used as a crime prevention use in any of offices such as stores, factories, and offices. Further, the sensor light may not be used for crime prevention purposes, but may be used for improving usability for a person who goes back and forth in the installation place.

  The smartphone 50 as a mobile phone terminal is connected to a mobile phone network 75 using various wireless communication systems such as 3G (3rd generation), HSPA (High Speed Packet Access), LTE (Long Term Evolution), and the like. Wireless communication with a mobile phone 70 or other smartphone (not shown).

  In the in-home monitoring system 5 having the above-described configuration, when the smartphone 50 is added, the first and second are also used when the base unit 10 operates the smartphone 50 in the out-of-home connection mode or in the in-home connection mode. The present invention can be applied in the same manner as each of the embodiments.

  While various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the first and second embodiments, a doorphone master unit is shown as a master unit, and a fixed phone base unit is shown in the first modification, but in addition to this, a master unit of a facsimile machine and a master unit of a home theater system The parent device of the home support system may be used.

  The present invention allows the mobile phone terminal to be connected to the parent device without changing the connection between the mobile phone terminal and the wireless router even in a situation where the wireless router to which the mobile phone terminal is wirelessly connected and the parent device are not directly connected. By registering the information of the wireless router via the wired router, the base unit and the mobile phone terminal can communicate wirelessly with each other via the wireless router. It is useful as a home network system, a telephone device, and a connection destination synchronization method for improving usability.

200, 200A Door phone system 210 Door phone master 211, 251 Control unit 212 Operation mode switching unit 213 Notification unit 214 AP search unit 215 Registration unit 216, 252 Memory 217 Packet configuration unit 218 Data extraction unit 219, 220 Buffer 221, 253 Changeover switch 222,254 Wireless LAN communication unit 223 Cable connection unit 225,264 Touch panel 226,257 Speaker 227 Operation button 228,258 Microphone 230 Wired router 240,240A, 240B Wireless router 250 Smartphone 255 Mobile network wireless unit 256 Voice interface (I / F)
259 Display 260 Entrance slave unit 261 Registration unit 262 Wireless connection switching unit 263 Connection unit 265 Door phone slave unit

Claims (6)

A master unit capable of wireless communication with at least one electric device installed in the house;
A home network system including a mobile phone terminal capable of communicating with the base unit via a wired router or a wireless router,
The master unit is directly connected to a wired router, acquires information on the wired router and information on a plurality of wireless routers connected to the wired router, and acquires the acquired information on the wired router and the plurality of wireless routers As the base unit connection router information, and sent to the mobile phone terminal through the wired router,
The mobile phone terminal has a storage unit, stores the base unit connection router information transmitted from the base unit in the storage unit,
When the mobile phone terminal is connected to any one of the wireless routers, the wireless router information is included in the parent device connection router information transmitted from the parent device. Wireless connection in the home connection mode wireless connection mode between
Home network system. The home network system according to claim 1,
The mobile phone terminal sets a wireless connection mode with the base unit when information of any of the connected wireless routers is not included in the base unit connection router information transmitted from the base unit. Connecting wirelessly in the outside connection mode,
Home network system. The home network system according to claim 1 or 2,
The base unit periodically acquires information on the wired router and information on a plurality of wireless routers connected to the wired router as the base unit connection router information.
Home network system. The home network system according to claim 3,
The base unit periodically transmits the base unit connection router information.
Home network system. A telephone device capable of wireless communication with at least one electric device installed in a house and capable of communicating with a mobile phone terminal via a wired router or a wireless router,
A wired connection detector for detecting connection with the wired router;
A router information acquisition unit that acquires information of the wired routers detected by the wired connection detection unit and information of a plurality of wireless routers connected to the wired routers;
A first communication unit that transmits the information of the wired router and the information of the plurality of wireless routers acquired by the router information acquisition unit to the mobile phone terminal as base unit connection router information;
Based on the in-home determination notification transmitted from the mobile phone terminal when the information of the wireless router stored when the mobile phone terminal is connected to any of the wireless routers is included in the base unit connection router information A control unit that switches a wireless connection mode between the mobile phone terminal to a home connection mode,
Telephone device. Home network including a parent device capable of wireless communication with at least one electric device installed in a home, and a mobile phone terminal capable of communicating with the parent device via a wired router or a wireless router A connection destination synchronization method in a system,
The master unit is directly connected to a wired router, acquires information on the wired router and information on a plurality of wireless routers connected to the wired router, and acquires the acquired information on the wired router and the plurality of wireless routers As the base unit connection router information, and sent to the mobile phone terminal through the wired router,
The mobile phone terminal has a storage unit, stores the base unit connection router information transmitted from the base unit in the storage unit,
When the mobile phone terminal is connected to any one of the wireless routers, the wireless router information is included in the parent device connection router information transmitted from the parent device. Wireless connection in the home connection mode wireless connection mode between
Destination synchronization method.

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