JP2013176005A - Intercom system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intercom system that makes it possible to call/reply in accordance with the SIP specification between a living room master unit and a mobile terminal without periodically obtaining IP address information.SOLUTION: A living room master unit 2 includes: a master unit mail client 25 for transmitting call notification mail to a mobile terminal 3 in response to a call from an entrance slave unit; and a SIP server 27 for communicating in accordance with the SIP specification. The mobile terminal 3 includes: a terminal mail client 34 for receiving the call notification mail transmitted by the living room master unit 2; and a SIP client 35 for transmitting IP address information on the mobile terminal 3 to the SIP server 27. A terminal CPU 37 activates the SIP client 35 to transmit the IP address information to the SIP server 27 if the terminal mail client 34 has received the call notification mail, and makes it possible to call/reply in accordance with the SIP specification between the living room master unit 2 and the mobile terminal 3.

Description

  The present invention relates to an intercom system, and more particularly to an intercom system that can respond to a call by a visitor with a mobile terminal.

  There is an intercom system that can respond to a call from an entrance cordless handset by a portable terminal (for example, see Patent Document 1). In such a system, a call / response is performed with a mobile terminal having a SIP communication function using the Internet. In this case, since the IP address of the mobile terminal is assigned a global IP address assigned by the mobile phone network, the IP address is frequently changed. Therefore, the portable terminal periodically notifies its own IP address to the room base unit and registers it, and when a call is generated from the entrance handset, the mobile terminal uses the IP address registered in the mobile terminal to make a call. It is configured to be notified.

JP 2010-239332 A

  As described above, in the conventional intercom system, the mobile terminal frequently sends registration information to the living room base unit and always waits for a call notification from the living room base unit, so that there is a problem that the battery of the mobile terminal is consumed heavily. there were.

  Therefore, the present invention has been made to solve the above-described problems, and calls / responses of the SIP specification can be made between the living room master unit and the portable terminal without regularly obtaining IP address information. The purpose is to provide a possible intercom system.

In order to solve the above-mentioned problem, the invention of claim 1 includes an entrance cordless device for a visitor to make a call, an office master phone for responding to a call from the entrance cordless device, and a public communication network. An intercom system having a portable terminal capable of responding to a call from an entrance cordless handset, wherein a living room master receives a call from the entrance cordless handset and obtains IP address information from the portable terminal IP address requesting means for transmitting a call notification signal of the mobile phone using a mobile phone network, a SIP server for performing SIP specification communication based on the IP address information of the call destination, and a master unit for controlling communication with the mobile terminal While having a communication control unit, the mobile terminal recognizes the call notification signal and the SIP client for transmitting its own IP address information to the SIP server, and activates the SIP client. An outgoing notification recognizing unit and a terminal communication control unit that controls communication with the room master unit. Upon receiving the call notification signal, the terminal communication control unit transmits IP address information from the SIP client to the SIP server. It is characterized in that a call / response of SIP specification can be made between a parent device and a portable terminal.
According to this configuration, when the mobile terminal receives the call notification signal using the mobile phone network from the living room base station, the mobile terminal SIP client is activated for the first time to send IP address information to the living room base station. Even if the IP address is not notified to the room master unit, a response to the call can be implemented by communication of the SIP specification. Therefore, useless communication is eliminated, the battery consumption speed of the portable terminal can be reduced, and a call from the entrance unit can be answered at low cost.

According to a second aspect of the present invention, in the configuration of the first aspect, the IP address requesting unit is a master mail client for transmitting a call notification mail as a call notification signal, while the call notification recognition unit is a call notification mail. It is a terminal mail client that receives the message.
According to this configuration, when the mobile terminal receives the call notification mail, the SIP client of the mobile terminal is activated for the first time and sends the IP address information to the room master. Therefore, communication can be started by reliably transmitting IP address information by using an existing signal.

According to a third aspect of the present invention, in the configuration according to the first aspect, the IP address requesting unit is a sleep release signal sending unit that sends a sleep release signal of the portable terminal as a call notification signal to notify the occurrence of the call, The call notification recognition unit is a sleep release signal recognition unit that recognizes a sleep release signal.
According to this configuration, when the portable terminal receives a sleep release signal from the living room parent machine, the SIP client of the portable terminal is activated for the first time and sends IP address information to the living room parent machine. Therefore, communication can be started by reliably transmitting IP address information by using an existing signal.

  The sleep release signal is a known signal for displaying transmitted information and performing packet communication even when the mobile terminal is in a sleep state.

According to a fourth aspect of the present invention, in the configuration according to the second aspect, the terminal communication control unit activates the SIP client only when the terminal mail client recognizes that the mail received by the terminal mail client is a call notification mail from the office base unit. It is characterized by starting.
According to this configuration, the mobile terminal activates the SIP client only when receiving the call notification mail from the living room master unit, so the SIP client is not activated unnecessarily, and the battery consumption speed can be delayed.

According to a fifth aspect of the present invention, in the configuration according to any one of the first to fourth aspects, the mobile terminal has a terminal timer that receives the call notification signal and starts counting, and the terminal communication control unit After the IP address information is transmitted to the device, the communication function of the portable terminal is terminated when the terminal timer counts up without receiving the SIP-specific call signal from the room master.
According to this configuration, the mobile terminal terminates the communication function in a situation where the mobile terminal is not connected immediately, such as when the mobile terminal is in a situation where communication is not possible, by limiting the time for the mobile terminal to start communication with the living room master by SIP. The consumption speed of can be delayed.

According to a sixth aspect of the present invention, in the configuration according to any one of the first to fifth aspects, the living room base unit has a base unit timer that starts counting upon receiving a call from the front door unit, and controls the base unit communication. If the mobile device receives the IP address information of the mobile terminal before the master timer counts up, the mobile phone calls the mobile terminal by SIP, and if the time is up without receiving the IP address information, does not perform the call control. Control is terminated.
According to this configuration, when there is a call from the entrance slave unit, the room master unit acquires a certain time from the acquisition of the IP address of the portable terminal to the calling of the portable terminal. Since the response waiting time of the mobile terminal is prolonged, it is possible to prevent a situation in which a visitor is inconvenienced.

According to the present invention, in the configuration in which the parent device mail client is provided in the room parent device, when the portable terminal receives the call notification mail, the SIP client of the portable terminal is activated only for the IP address information to the room parent device. Therefore, even if the IP address is not always notified to the room master unit, the response to the call can be implemented by SIP specification communication. Therefore, useless communication is eliminated, the battery consumption speed of the portable terminal can be reduced, and a call from the entrance unit can be answered at low cost.
In addition, in the configuration in which the portable terminal activation signal generation unit is provided in the living room master device, when the portable terminal receives the sleep release signal, the SIP client of the portable terminal is activated for the first time to send IP address information to the living room parent device. Similarly, useless communication can be eliminated, the battery consumption speed of the mobile terminal can be reduced, and a call from the front door can be answered at low cost.

It is a block diagram which shows an example of the intercom system which concerns on this invention, and has shown each apparatus with the block diagram. It is a block diagram which shows the other example of an intercom system, and has shown each apparatus with the block diagram.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing a configuration of an intercom system according to the present invention, and individual devices are shown in a block diagram. In FIG. 1, 1 is an entrance slave for a visitor to make a call, 2 is a living room master for responding to a call from the entrance slave 1, and 3 is from the entrance slave 1 via a public communication network. It is a portable terminal that can respond to calls.

The entrance cordless handset 1 and the room base unit 2 are connected by a transmission line L1, and the room base unit 2 performs wireless communication with the mobile terminal 3 via the home LAN 4 and the general-purpose communication network N1 such as the Internet and the mobile phone network N2. It is possible. Note that the general-purpose communication network N1 and the mobile phone network N2 are both public communication networks, and both are configured by a common network.
Reference numeral 5 denotes a wireless access point, which is connected to a plurality of locations on the general-purpose communication network N1. The mobile terminal 3 used in the present invention is compatible with, for example, a smartphone such as an Android (registered trademark) terminal, and can be used as an IP phone through the wireless access point 5 in addition to a telephone function by line communication. SIP communication function is provided.

  The entrance slave unit 1 communicates with a slave unit operation unit 10 for a visitor to call a resident, a slave unit microphone 11 and a slave unit speaker 12 for a visitor to talk to a resident, and a room base unit 2. The slave unit communication IF 13 and the slave unit CPU 14 for controlling each circuit of the entrance slave unit 1 are provided.

  The base unit 2 includes a base unit operation unit 21 for responding to a call from a visitor and various setting operations, a base unit microphone 22 and a base unit speaker 23 for communicating with the visitor, and the entrance unit 1 A base unit communication IF 24 for communicating and communicating with the wireless access point 5 and the mobile terminal 3, a base unit mail client 25 for creating and transmitting / receiving e-mails, an address memory 26 for storing mail addresses, and a mobile terminal SIP server 27 for registering IP address information 3, a master timer 28 for waiting for a time from a call from a visitor to a call of the mobile terminal 3, a master CPU 29 for controlling each circuit of the room master 2 Etc.

  The mobile terminal 3 includes a terminal operation unit 31 that performs a call / response operation, a terminal microphone 32 and a terminal speaker 33 for making a call with a visitor, a terminal mail that receives an e-mail from the living room base unit 2, and creates and transmits a mail. After sending IP address information to the client 34 and the room master 2 and sending information of the portable terminal 3 to the SIP client 35 and room master 2 for making a call based on the SIP with the room master 2, the room master 2 A terminal timer 36 for managing the response time from the mobile terminal, a terminal CPU 37 for controlling each circuit of the mobile terminal 3, and a mobile phone antenna 38 to communicate with a telecommunications carrier providing a mobile phone communication service, and a wireless LAN A terminal communication IF 40 and the like for communicating with the living room base unit 2 by transmitting and receiving wireless LAN radio waves to and from the wireless access point 5 via the antenna 39 are provided.

The operation of the intercom system configured as described above is as follows. When a call is made from the slave unit operation unit 10 of the entrance slave unit 1, a call signal is output from the slave unit CPU 14 and transmitted to the living room master unit 2 via the slave unit communication IF 13.
In the base unit 2, when the base unit CPU 29 receives the call signal via the base unit communication IF 24, the base unit mail client 25 is used for the mail address of the specific portable terminal 3 stored in the address memory 26. To send a mail (call notification mail). At the same time, the base unit timer 28 is used to start counting for a predetermined time (for example, 3 seconds) and wait for a response from the portable terminal 3.

This mail is transmitted to the mobile terminal 3 via the base unit IF 24, the home LAN 4, and the mobile phone network N2. In the mobile terminal 3, this mail is received by the mobile phone antenna 38 and transmitted to the terminal CPU 37 via the terminal communication IF 40.
When the terminal CPU 37 recognizes that the mail received using the terminal mail client 34 is a call notification mail transmitted by the room master unit 2, the terminal CPU 37 activates the SIP client 35 and portable terminal information such as the IP address of the portable terminal 3. (SIPURI information) is output and transmitted from the wireless LAN antenna 39. This portable terminal information is transmitted to the room master unit 2 via the wireless access point 5 and the general-purpose communication network N1.
Note that the fact that the mail is a call notification mail can be recognized, for example, from the attached ID information of the parent room 2.

  When the room base unit 2 waiting for the mobile terminal information from the mobile terminal 3 receives the mobile terminal information, the base unit CPU 29 registers the IP address information of the mobile terminal 3 in the SIP server 27. If the base timer 28 expires before the IP address information is received, the base CPU 29 ends the response waiting state of the mobile terminal 3 and returns to the standby state.

  The master CPU 29 having registered the IP address information transmits a call signal based on SIP to the registered call destination. This signal is transmitted to the portable terminal 3 via the general-purpose communication network N1 and the wireless access point 5.

  On the other hand, the terminal CPU 37 that activated the SIP client 35 starts counting a predetermined time (for example, 5 seconds) by the terminal timer 36 and waits for a call signal based on SIP from the living room master unit 2. If a call signal based on SIP is received before the terminal timer 36 counts up, the counting of the terminal timer 36 ends. Even if the time set by the terminal timer 36 elapses, the communication control with the room master unit 2 is terminated when the call signal based on the SIP is not received and the communication is not started.

The mobile terminal 3 that has received the call signal via the wireless LAN antenna 39 before the terminal timer 36 counts up, the response signal based on SIP is operated by the user operating the terminal operation unit 31 by the user of the mobile terminal 3. Is replied. This response signal is transmitted to the room master unit 2 via the wireless LAN antenna 39, the wireless access point 5, and the general-purpose communication network N1.
Receiving this response signal, the master CPU 29 forms a communication path between the entrance slave 1 and the portable terminal 3 via the living room master 2. In this way, a call can be made between the microphone 32 and the speaker 33 of the portable terminal 3 and the microphone 11 and the speaker 12 of the entrance terminal 1, and a call from a visitor cannot be answered from the room base unit 2 by going out or the like. Even in this case, the resident can respond using the portable terminal 3.

In this way, when the mobile terminal 3 receives a mail using the mobile phone network N2 from the living room base unit 2, the SIP client 35 of the mobile terminal 3 is activated for the first time to send IP address information to the living room base unit 2. Even if the room base unit 2 is not always notified of the IP address, the response to the call can be implemented by communication of the SIP specification. Therefore, the SIP client 35 does not start up unnecessarily and there is no useless communication, so the battery consumption speed of the mobile terminal 3 can be slowed down. Moreover, it can respond to the call from the entrance cordless handset 1 at low cost.
Since the IP address information is transmitted using the existing mail function, the IP address information can be reliably transmitted to start the SIP communication.

Further, when a call is made from the front door 1, the living room master 2 secures a certain time until the portable terminal 3 is called after obtaining the IP address of the portable terminal 3. Because the response waiting time of the mobile terminal 3 is prolonged, it is possible to prevent a situation in which the visitor is inconvenienced or other functions are disturbed.
Furthermore, by limiting the time until the portable terminal 3 starts communication with the room master 2 by SIP, the communication function is terminated in a situation where the portable terminal 3 is not immediately connected, such as when the portable terminal 3 is in a situation where communication is not possible, Battery consumption speed can be delayed.

  In FIG. 1, the function of communicating with the portable terminal 3 incorporated in the living room parent device 2 may be separate from the main body of the living room parent device 2. Specifically, the LAN connection function and the like in the base unit mail client 25, the address memory 26, the SIP server 27, the base unit timer 28, and the base unit communication IF 24 are separated from the main body provided with the call function of the room base unit 2. Alternatively, it may be formed as a separate body. By doing so, the above-described configuration can be realized by changing the degree to which the adapter is connected without greatly changing the conventional living room master.

FIG. 2 shows another form of the intercom system. It differs greatly from FIG. 1 above in that the living room master 2 does not have a master mail client, and the mobile terminal 3 does not have a terminal mail client. This will be specifically described below. In addition, the same code | symbol is provided to the same component and description is abbreviate | omitted.
In addition to the parent device operation unit 21, the parent device microphone 22, the parent device speaker 23, the parent device communication IF 24, the SIP server 27, the parent device timer 28, and the parent device CPU 29, the living room parent device 2 sends a sleep release signal to the portable terminal 3. Is provided. The sleep cancellation signal transmission unit 25a is provided. The sleep release signal sending unit 25a may be integrated with the parent CPU 29.

  In addition to the operation unit 31, the parent microphone 32 and the parent speaker 33, the SIP client 35, the terminal timer 36, the terminal CPU 37, the mobile phone antenna 38, the wireless LAN antenna 39, and the terminal communication IF 40, the sleep release signal A recognition unit 34a is provided. The sleep release signal recognition unit 34a may be integrated with the terminal CPU 37.

The operation of the intercom system configured as described above is as follows. When a call is made from the slave unit operation unit 10 of the entrance slave unit 1, a call signal is output from the slave unit CPU 14 and transmitted to the living room master unit 2 via the slave unit communication IF 13.
When the master unit CPU 29 receives the call signal via the master unit communication IF 24, the living room master unit 2 transmits a sleep release signal as a call notification signal to the mobile terminal 3 whose number is registered in advance. At the same time, the base unit timer 28 is used to start counting for a predetermined time and wait for a response from the portable terminal 3.

The sleep release signal is transmitted to the mobile terminal 3 through the base unit IF 24, the home LAN 4, and the mobile phone network N2, and is received by the terminal CPU 37 through the mobile phone antenna 38 and the terminal communication IF 40, and the sleep release signal recognition unit 34a. Recognized.
The terminal CPU 37 that has received the sleep cancel signal is activated if it is in the sleep state. When the sleep cancel signal recognition unit 34a recognizes that the sleep cancel signal is from the room master unit 2, the terminal CPU 37 recognizes that the call cancel signal is from the room master unit 2, and activates the SIP client 35 to carry it. Mobile terminal information (SIPURI information) such as the IP address of the terminal 3 is output and transmitted from the wireless LAN antenna. This portable terminal information is transmitted to the room master unit 2 via the wireless LAN access point 5 and the general-purpose communication network N1.
Note that the fact that the sleep release signal is a call notification signal can be recognized from, for example, the attached ID information of the room master unit 2.

  When the room base unit 2 waiting for the mobile terminal information from the mobile terminal 3 receives the mobile terminal information, the base unit CPU 29 registers the IP address information of the mobile terminal 3 in the SIP server 27. When the base timer 28 expires before receiving the IP address information, the base CPU 29 ends the response waiting state of the mobile terminal 3 and returns to the standby state.

  The master CPU 29 having registered the IP address information continuously transmits a call signal based on SIP to the registered call destination. This signal is transmitted to the portable terminal 3 via the general-purpose communication network N1 and the wireless access point 5.

  On the other hand, the terminal CPU 37 that activated the SIP client 35 starts counting for a predetermined time by the terminal timer 36 and waits for a calling signal based on SIP from the room master unit 2. If a call signal based on SIP is received before the terminal timer 36 counts up, the counting of the terminal timer 36 ends. If the call signal based on the SIP is not received and the communication is not started even after the time set by the terminal timer 36 elapses, the communication control with the room master unit 2 is terminated.

In the mobile terminal 3 that has received the calling signal via the wireless LAN antenna 39 before the terminal timer 36 counts up, the response signal based on SIP is obtained by the user operating the mobile terminal 3 as a response operation. Is replied. This response signal is transmitted to the room master unit 2 via the wireless LAN antenna 39, the wireless access point 5, and the general-purpose communication network N1.
Receiving this response signal, the master CPU 29 forms a communication path between the entrance slave 1 and the portable terminal 3 via the living room master 2. In this way, a call can be made between the microphone 32 and the speaker 33 of the portable terminal 3 and the microphone 11 and the speaker 12 of the entrance terminal 1, and a call from a visitor cannot be answered from the room base unit 2 by going out or the like. Even in this case, the resident can respond using the portable terminal 3.

In this way, when the mobile terminal 3 receives the sleep release signal as a call notification signal using the mobile phone network N2 from the living room base unit 2, the SIP client 35 of the mobile terminal 3 is activated for the first time and the IP address information Therefore, the response to the call can be made by communication of the SIP specification without constantly notifying the room base unit 2 of the IP address. Therefore, the SIP client 35 does not start unnecessarily, and unnecessary communication is eliminated, so that the battery consumption speed of the mobile terminal 3 can be slowed down. Moreover, it can respond to the call from the entrance cordless handset 1 at low cost.
Then, when the portable terminal 3 receives the sleep release signal, the SIP client 35 of the portable terminal 3 is activated for the first time and sends the IP address information to the room master unit 2. Therefore, communication can be started by reliably transmitting IP address information by using an existing signal.

Further, when a call is made from the front door 1, the living room master 2 secures a certain time until the portable terminal 3 is called after obtaining the IP address of the portable terminal 3. Because the response waiting time of the mobile terminal 3 is prolonged, it is possible to prevent a situation in which the visitor is inconvenienced or other functions are disturbed.
Furthermore, by limiting the time until the portable terminal 3 starts communication with the room master 2 by SIP, the communication function is terminated in a situation where the portable terminal 3 is not immediately connected, such as when the portable terminal 3 is in a situation where communication is not possible, Battery consumption speed can be delayed.

  In addition, although the said Example demonstrated the detached intercom system as an example, it is applicable also to the call from the collective entrance machine of a collective housing intercom system.

  1 .. Entrance cordless handset 2 ..Home base unit 3 .. Portable terminal 4 ..Home LAN 5 ..Wireless access point 24 .. Base unit communication IF 25. 25a ··· Sleep release signal sending unit, 26 ··· Address memory, 27 ··· SIP server, 28 ··· Base unit timer, 29 ··· Base unit CPU (base unit communication control unit), 34 ··· Terminal mail client, 34a ..Sleep release signal recognition unit, 35 ..SIP client, 36 ..Terminal timer, 37 ..Terminal CPU (terminal communication control unit), 40 ..Terminal communication IF, N1 ..General-purpose communication network, N2. Telephone network.

Claims (6)

An entrance cordless handset for a visitor to make a call, a living room base phone for responding to the call from the entrance cordless handset, and a portable phone capable of responding to the call from the entrance cordless handset via a public communication network An intercom system having a terminal,
The room master unit receives a call from the entrance slave unit, and transmits a call notification signal for obtaining IP address information to the mobile terminal using a mobile phone network; and While having a SIP server that performs communication of the SIP specification based on the IP address information of the call destination, and a base unit communication control unit that controls communication with the mobile terminal,
The portable terminal includes: a SIP client for transmitting its IP address information to the SIP server; a call notification recognition unit that recognizes the call notification signal and activates the SIP client; A terminal communication control unit for controlling communication,
When the terminal communication control unit receives the call notification signal, the terminal communication control unit transmits IP address information from the SIP client to the SIP server, and enables calling / response of SIP specifications between the living room master and the portable terminal. An intercom system characterized by While the IP address request means is a master mail client for sending a call notification mail as the call notification signal,
The intercom system according to claim 1, wherein the call notification recognition unit is a terminal mail client that receives the call notification mail. While the IP address requesting unit is a sleep release signal sending unit that sends a sleep release signal of the mobile terminal as the call notification signal to notify the occurrence of a call,
The intercom system according to claim 1, wherein the call notification recognition unit is a sleep release signal recognition unit that recognizes the sleep release signal. The terminal communication control unit activates the SIP client only when recognizing that the mail received by the terminal mail client is the call notification mail from the living room master unit. Intercom system. The mobile terminal has a terminal timer that receives the call notification signal and starts counting,
When the terminal timer counts up without receiving a SIP-specific call signal from the room master unit after transmitting IP address information to the room base unit, the terminal communication control unit performs the communication function of the portable terminal. The intercom system according to any one of claims 1 to 4, wherein the intercom system is terminated. The living room master has a master timer that starts counting upon receiving a call from the entrance slave,
When the base unit communication control unit receives the IP address information of the mobile terminal before the base unit timer counts up, the mobile unit calls the mobile terminal by SIP,
6. The intercom system according to claim 1, wherein when the time is up without receiving the IP address information, the call control is not performed and the control is terminated.

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