JP4858122B2 - Intercom system - Google Patents

Description

  The present invention relates to an intercom system.

  Conventionally, telephone handsets installed outside the dwelling unit (such as a doorphone handset installed at the front door of the dwelling unit or a lobby intercom device installed at the common entrance of the apartment house) and a signal line installed inside the dwelling unit Various interphone systems are provided that allow interphone calls between the interphone base unit and the handset by exchanging voice signals via the signal line. Has been. Here, an interphone system is already provided that enables a telephone call to be made not only to the interphone master unit but also to a general telephone connected to a subscriber telephone line (see Patent Document 1).

Also, nowadays, general telephones equipped with wireless slave units are widely used, and wireless slave units capable of both a call with a handset via an interphone master unit and an external line call via a telephone set. Interphone systems equipped with are also provided.
JP-A-5-3579

  By the way, in recent years, the number of mobile phone contracts has overtaken the number of subscriber telephone lines, and the number of households that make an external phone call from a home without using a subscriber telephone line is increasing. That is, in a home that does not have a contract for a subscriber telephone line, it is impossible to make a call with a telephone handset using a general telephone or a wireless handset, which is inconvenient.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an intercom system with improved usability regarding a call with a handset.

In order to achieve the above object, the invention of claim 1 includes a telephone set installed outside a dwelling unit and an interphone main unit installed inside the dwelling unit and connected to the call set via a signal line. Mobile phone function for making calls over the mobile phone network of mobile phone operators in an interphone system that enables interphone calls between the interphone master unit and the handset by exchanging audio signals via signal lines And a wireless interface device that interfaces the interphone base unit and the wireless communication function of the mobile phone terminal to a mobile phone terminal having a wireless communication function for performing wireless communication without using the mobile phone network, via the wireless interface device Voice signals are exchanged between the mobile phone terminal and the handset, and between the intercom master unit and the mobile phone terminal. The face device includes a storage means for storing an identification code of a mobile phone terminal that permits a call with a handset among a plurality of pre-registered mobile phone terminals, and a call notification from the intercom base unit by the handset. Control means for transmitting the call notification only to a mobile phone terminal having an identification code that is allowed to talk to the handset with reference to the storage means when received, the storage of the wireless interface device Means stores an identification code that permits a call with the interphone base unit, and the control means of the wireless interface device refers to the storage unit when receiving a call notification by the interphone base unit from the interphone base unit. The call notification is transmitted only to a mobile phone terminal having an identification code that is allowed to talk to a mobile phone .

According to the first aspect of the present invention, even if the subscriber telephone line is not contracted, it is possible to make a call with the handset using not only the intercom base unit but also the mobile phone terminal, and the usability is improved. In a call with a handset device by a terminal, a call can be made without going through the mobile phone network of the mobile phone carrier, so that the cost required for the call can be greatly reduced. In addition, in the wireless interface device, the identification code of the mobile phone terminal that permits the call with the handset among a plurality of pre-registered mobile phone terminals is stored in the storage means, and the call is made from the interphone master unit. When receiving the call notification by the handset, the control means refers to the storage means and transmits the call notification only to the mobile phone terminal of the identification code that is allowed to talk with the handset. In addition, it is possible to set so as not to notify a child's mobile phone terminal of a call from the handset, thereby improving usability. In addition, in the wireless interface device, when a call notification from the interphone master unit is received from the interphone master unit, the control unit refers to the storage unit to the mobile phone terminal having an identification code that is allowed to communicate with the interphone master unit. Therefore, for example, it can be set not to notify a mother's mobile phone terminal that has many opportunities to make a call from the intercom base unit, and the usability is improved.

(Embodiment 1)
In this embodiment, the technical idea of the present invention is applied to an intercom system for a detached house, and as shown in FIG. 1, a communication device (door phone device) 2 installed outside a dwelling unit (entrance), An interphone master unit (hereinafter abbreviated as “master unit”) 1 that is installed in the dwelling unit and is connected to the door phone slave unit 2 through the signal line Ls is provided. In addition, the base unit 1 in the present embodiment can wirelessly communicate with the mobile phone terminal 3 via a wireless interface device 4 described later.

  The mobile phone terminal 3 is a third-generation mobile phone terminal of, for example, W-CDMA (Wideband Code Division Multiple Access) system, and is a first wireless communication device for wirelessly communicating with a microphone 30 and a speaker 31 and a base station of a mobile phone operator. 1 wireless unit 32, a second wireless unit 33 for performing wireless communication compliant with wireless LAN standards (for example, IEEE 802.11 standards), a monitor unit 34 having a display device such as a liquid crystal display, a numeric keypad, etc. An operation input receiving unit 35 that receives an operation input and a terminal control unit 36 that controls each unit with a CPU as a main component. It has a mobile phone function for making a call via the telephone network and a wireless communication function (wireless LAN function) for wireless communication by the second wireless unit 33 without going through the mobile phone network. However, since the cellular phone function of the cellular phone terminal 3 and the wireless LAN function compliant with the IEEE 802.11 standards are well known, detailed description thereof will be omitted.

  The intercom unit 2 includes a microphone 20 and a speaker 21, a call processing unit 22 that performs a two-line / four-line conversion process of an audio signal and a call signal transmission process associated with an operation of a call button (not shown), and a visitor. The image pickup unit 23 that picks up an image and the audio signal that is modulated from the video signal output from the image pickup unit 23 and frequency-division multiplexed with the audio signal output from the call processing unit 22 and transmitted from the base unit 1 via the signal line Ls And a demultiplexing processing unit 24 for separating. However, since the configuration of the door phone slave unit 2 is well known in the art, a detailed description thereof will be omitted.

  The base unit 1 multiplexes the video signal and the audio signal that are frequency-division multiplexed and transmitted from the intercom unit 2 via the signal line Ls and transmits the audio signal to the intercom unit 2 via the signal line Ls. A separation processing unit 10, a monitor unit 11 that has a display device such as a liquid crystal display or a CRT, demodulates and displays the video signal separated by the demultiplexing processing unit 10, and amplifies the output of the microphone, speaker, and microphone. A voice input / output unit 12 having a microphone amplifier and a speaker amplifier that amplifies the input to the speaker, an operation input receiving unit 13 having an operation button such as a response button (not shown) and receiving an operation input, and a CPU A base unit control unit 14 that controls each unit as a constituent element and a signal transmission unit 15 that transmits a signal to and from the wireless interface device 4 via a communication line Lz are provided. To have.

  The wireless interface (I / F) device 4 includes a storage unit 40 composed of a nonvolatile semiconductor memory, a signal transmission unit 41 that transmits signals to the parent device 1 via a communication line Lz, and a numeric keypad (not shown). The operation input receiving unit 42 that includes an operation button and the like, the operation input receiving unit 42 that receives an operation input, the control unit 43 that controls each unit with the CPU as a main component, and the wireless communication that performs wireless communication with the mobile phone terminal 3 And a communication unit 44. The wireless communication unit 44 performs wireless communication in conformity with standards related to a wireless LAN (for example, IEEE 802.11 standards), like the second wireless unit 33 of the mobile phone terminal 3. In addition, in the storage unit 40, the identification code (private IP address) of the mobile phone terminal 3 that is the partner of the wireless communication is registered in advance together with the identification code (private IP address) assigned to the wireless I / F device 4. Thus, data (packets) can be transmitted / received to / from a specific mobile phone terminal 3 by designating this IP address as a destination address.

  Next, the operation of this embodiment will be described. First, the basic operation of the intercom system for making a call between the doorphone slave unit 2 and the base unit 1 will be briefly described.

  When a visitor presses a call button (not shown) of the doorphone slave unit 2, a call signal is transmitted to the base unit 1 via the signal line Ls. In the base unit 1, the voice input / output unit is transmitted by the base unit control unit 14. The ringing sound is emitted from the 12 speakers and power is supplied through the signal line Ls to activate the imaging unit 23 of the door phone slave unit 2, and the video (moving image) captured by the imaging unit 23 is displayed on the monitor unit 11. Display. Then, if a householder who has confirmed the visitor by the video displayed on the monitor unit 11 presses a response button (not shown) provided on the operation input receiving unit 13 of the base unit 1, the base unit control unit 14 A communication path via the signal line Ls is formed between the intercom unit 2 and the telephone unit 1 and the intercom unit 2 can communicate with each other, and the monitor unit 11 of the main unit 1 during the conversation. It is possible to display an image transmitted from the doorphone slave unit 2. However, the call and video transmission between the base unit 1 and the intercom 2 are terminated when a predetermined time elapses after the response button is pressed or when the response button is pressed again.

  Next, an operation related to a call between the doorphone slave unit 2 and the mobile phone terminal 3 will be described with reference to the sequence diagram of FIG.

  When the call button is pressed and a call signal is transmitted from the intercom unit 2 through the signal line Ls, the base unit control unit 14 of the base unit 1 transmits the wireless I / O from the signal transmission unit 15 through the communication line Lz. A calling signal is transmitted to the F apparatus 4 and a calling sound is generated from the speaker of the voice input / output unit 12. In the wireless I / F device 4, the control unit 43 sends a call notification to the mobile phone terminal 3 from the wireless communication unit 44 according to the call signal received by the signal transmission unit 41. In the mobile phone terminal 3, when the second wireless unit 33 receives the call notification transmitted from the wireless I / F device 4, the terminal control unit 36 causes the speaker 31 to ring. When the householder who has heard the ringing tone presses a response button (not shown) provided in the operation input receiving unit 35 of the mobile phone terminal 3, the terminal control unit 36 receives the wireless I / O from the second wireless unit 33. A response notification is sent to the F apparatus 4. In the wireless I / F device 4, the control unit 43 transmits the response notification received by the wireless communication unit 44 from the signal transmission unit 41 to the parent device 1 via the communication line Lz. In the base unit 1, when the signal transmission unit 15 receives the response notification transmitted from the mobile phone terminal 3 via the wireless I / F device 4, the base unit control unit 14 connects the signal line Ls between the intercom 2. And a call permission notification to the mobile phone terminal 3 via the wireless I / F device 4 and the ringing sound that is ringing from the speaker of the voice input / output unit 12 is stopped. In the mobile phone terminal 3, when the second wireless unit 33 receives the call permission notification transmitted from the wireless I / F device 4, the terminal control unit 36 stops the ringing sound that is ringing from the speaker 31. The video and audio (speech voice) transmitted from the doorphone slave unit 2 to the base unit 1 are converted into video data and audio data by the base unit control unit 14, respectively, and the signal transmission unit 15 converts the radio I / F device 4. To the mobile phone terminal 3 from the wireless communication unit 44 of the wireless I / F device 4. In the mobile phone terminal 3, when the video data and audio data transmitted from the wireless I / F device 4 are received by the second radio unit 33, the terminal control unit 36 reconstructs the original video from the video data and monitors the monitor unit 34. The voice data is converted into an analog voice signal and the voice (received voice) is generated from the speaker 31. In addition, the voice (transmitted voice) input from the microphone 30 is converted into voice data by the terminal control unit 36 and transmitted from the second radio unit 33 to the radio I / F device 4. In the wireless I / F device 4, the control unit 43 transmits the audio data received by the wireless communication unit 44 from the signal transmission unit 41 to the parent device 1 via the communication line Lz. In base unit 1, when voice signal transmitted from wireless I / F device 4 is received by signal transmission unit 15, base unit control unit 14 converts the voice data into an analog voice signal, and demultiplexing processing unit 10 makes a doorphone. It transmits to the subunit | mobile_unit 2, a sound | voice (received voice) is sounded from the speaker 21 of the doorphone subunit | mobile_unit 2, and a telephone call between the doorphone subunit | mobile_unit 2 and the mobile telephone terminal 3 is attained. However, a telephone call and video transmission between the mobile phone terminal 3 and the door phone slave unit 2 via the base unit 1 and the wireless I / F device 4 are performed for a predetermined time after the response button is pressed on the mobile phone terminal 3. The process ends when the time elapses or the response button is pressed again.

  Next, operations related to extension calls between the mobile phone terminal 3 and the base unit 1 will be described with reference to the sequence diagram of FIG.

  First, when an extension call button (not shown) provided in the operation input receiving unit 13 of the base unit 1 is pressed, the base unit control unit 14 transmits a wireless I / O from the signal transmission unit 15 via the communication line Lz. An extension call signal is transmitted to the F apparatus 4. In the wireless I / F device 4, the control unit 43 sends an extension call notification to the mobile phone terminal 3 from the wireless communication unit 44 in response to the extension call signal received by the signal transmission unit 41. In the mobile phone terminal 3, when the extension call notification transmitted from the wireless I / F device 4 is received by the second wireless unit 33, the terminal control unit 36 causes the speaker 31 to ring. When the householder who has heard the ringing tone presses a response button (not shown) provided in the operation input receiving unit 35 of the mobile phone terminal 3, the terminal control unit 36 receives the wireless I / O from the second wireless unit 33. A response notification (extension call response notification) is sent to the F apparatus 4. In the wireless I / F device 4, the control unit 43 transmits the response notification received by the wireless communication unit 44 from the signal transmission unit 41 to the parent device 1 via the communication line Lz. In base unit 1, base unit control unit 14 activates voice input unit 12 when signal transmission unit 15 receives a response notification transmitted from mobile phone terminal 3 via wireless I / F device 4. Then, the voice (transmission voice) input from the voice input unit 12 is converted into voice data by the base unit control unit 14 and transmitted from the signal transmission unit 15 to the wireless I / F device 4. Is transmitted from the wireless communication unit 44 to the mobile phone terminal 3. In the cellular phone terminal 3, when the second wireless unit 33 receives the voice data transmitted from the wireless I / F device 4, the terminal control unit 36 converts the voice data into an analog voice signal and receives voice (received voice) from the speaker 31. Sound). In addition, the voice (transmitted voice) input from the microphone 30 is converted into voice data by the terminal control unit 36 and transmitted from the second radio unit 33 to the radio I / F device 4. In the wireless I / F device 4, the control unit 43 transmits the audio data received by the wireless communication unit 44 from the signal transmission unit 41 to the parent device 1 via the communication line Lz. In the base unit 1, when the audio data transmitted from the wireless I / F device 4 is received by the signal transmission unit 15, the base unit control unit 14 converts the audio data into an analog audio signal and outputs it from the speaker of the audio input unit 12. Sound a voice (received voice). In this way, extension calls can be made between the base unit 1 and the mobile phone terminal 3.

  As described above, according to the present embodiment, even if the subscriber telephone line is not contracted, the user can improve the usability because it is possible to make a call with the door phone slave unit 2 using not only the base unit 1 but also the mobile phone terminal 3. In addition, since the mobile phone terminal 3 can make a call with the door phone slave unit 2 without going through the mobile phone network of the mobile phone operator, the cost required for the call can be greatly reduced. In addition to the audio, the video imaged by the imaging unit 23 of the door phone slave unit 2 is also relayed from the base unit 1 to the mobile phone terminal 3 via the wireless I / F device 4 and is transmitted to the monitor unit 34 of the mobile phone terminal 3. Since the video received from the intercom unit 2 can be displayed, the mobile phone terminal 3 can be used to make a call while viewing the video of the visitor. Furthermore, since the extension call can be made between the base unit 1 and the mobile phone terminal 3 without going through the mobile phone network of the mobile phone operator, it is easy to use.

  By the way, recently, the whole family (for example, parents, children, grandparents, etc.) often has a dedicated mobile phone terminal 3. In such a situation, it may be inconvenient if a call (interphone call) with the doorphone slave unit 2 is possible in all the mobile phone terminals 3. For example, it is not preferable for a child or grandparent to respond when a visitor is a malicious visitor.

  Therefore, in the present embodiment, among the plurality of mobile phone terminals 3 whose IP addresses are registered in advance in the storage unit 40 of the wireless I / F device 4, the mobile phone terminal that permits the interphone call with the door phone slave unit 2. 3 and the IP address of the mobile phone terminal 3 that permits the extension call with the base unit 1 are set in the data table stored in the storage unit 40, and the control unit 43 of the wireless I / F device 4 When the call notification by the doorphone slave unit 2 is received from the base unit 1, the mobile phone terminal 3 having an IP address that allows the interphone call of the doorphone slave unit 2 with reference to the data table of the storage unit 40 is referred to The IP address for which the extension call with the base unit 1 is permitted with reference to the storage unit 40 when the call notification is transmitted and the extension call notification by the base unit 1 is received from the base unit 1 Only so as to transmit the extension call notification to the mobile phone terminal 3.

  For example, in the case of a family of five of parents (father, mother), children, and grandparents, as shown in FIG. 4, an IP address (for example, 192.168.1.100 to 192.168.1.104) assigned to the mobile phone terminal 3 held by each person. The flag is set to “1” for the IP address (192.168.1.100, 192.168.1.101) of the father's and mother's mobile phone terminals 3 that are allowed to make interphone calls. A data table in which the flag is set to “0” is stored in the storage unit 40 at the IP address (192.168.1.102 to 192.168.1.104) of the grandparent's mobile phone terminal 3. Further, in this data table, the flag is set to “1” for the IP addresses (192.168.1.100 to 192.168.1.104) of the mobile phone terminals 3 of all the family members who are allowed to make extension calls.

  Thus, in the wireless I / F device 4, when the signal transmission unit 41 receives the calling signal from the door phone slave unit 2 transmitted from the base unit 1 via the communication line Lz, the control unit 43 stores the storage unit 40. The call notification data (packet) is transmitted only to the IP address of the mobile phone terminal 3 in which the interphone call is permitted (the flag is set to “1”). As a result, the ringing tone is sounded only by the cellular phone terminal 3 held by the parents (father, mother), and the response button is pressed first among these two cellular phone terminals 3 and the response notification is transmitted. A call permission notice is transmitted from the base unit 1 to the telephone terminal 3 (for example, the mother mobile phone terminal 3) via the wireless I / F device 4, and between the mobile phone terminal 3 and the doorphone cordless handset 2 Intercom call is possible.

  Similarly, in the case of an extension call, when the signal transmission unit 41 receives a call signal for an extension call transmitted from the base unit 1 via the communication line Lz, the data table stored in the storage unit 40 by the control unit 43. The call notification data (packet) is transmitted only to the IP address of the mobile phone terminal 3 in which the extension call is permitted (the flag is set to “1”). In the illustrated example, a ringing tone sounds on the mobile phone terminal 3 of the entire family, and the mobile phone terminal 3 that has transmitted the response notification by pressing the response button first among these five mobile phone terminals 3, A call permission notification is transmitted from the base unit 1 via the wireless I / F device 4, and an extension call can be made between the mobile phone terminal 3 and the base unit 1.

  As described above, according to the present embodiment, among a plurality of mobile phone terminals 3 that can communicate with the base unit 1 via the wireless I / F device 4, Since it is possible to arbitrarily set for each mobile phone terminal 3 whether or not an extension call can be made with the base unit 1, for example, the mobile phone terminal 3 owned by the child does not receive a call notification from the door phone cordless handset 2. It is possible to perform flexible operation according to the usage situation such as performing only call notification, or not performing call notification of extension calls to a mother's mobile phone terminal that has many opportunities to call extension calls from the base unit 1 There is an advantage that usability is improved.

(Embodiment 2)
Since the configuration of the present embodiment is the same as that of the first embodiment, illustration and description of the same configuration requirements are omitted.

  In the first embodiment, a data table in which whether or not an interphone call is permitted is stored in the storage unit 40 for the mobile phone terminal 3 owned by the family, and only the mobile phone terminal 3 that is allowed to perform the interphone call is stored in the door phone. Call notification from the sub unit 2 is performed.

  On the other hand, in the present embodiment, instead of setting whether or not the interphone call is permitted, the order (priority order) of sending the call notification from the intercom handset 2 is made to correspond to the IP address of each mobile phone terminal 3. 40, the control unit 43 of the wireless I / F device 4 that has received the call signal from the base unit 1 refers to the data table in the storage unit 40, and determines the cellular phone terminal 3 having a high priority. Call notifications in turn.

  For example, when the priority order of Nos. 1 to 5 is set in the data table for the IP addresses of the mobile phone terminals 3 held by the mother, father, child, grandmother, and grandfather, the wireless I / F device When the signal transmission unit 41 receives the calling signal from the intercom unit 2 transmitted from the base unit 1 via the communication line Lz, the control unit 43 of 4 refers to the data table stored in the storage unit 40. Then, the call notification data (packet) is transmitted to the IP address of the cellular phone terminal 3 having a high priority, that is, the mother cellular phone terminal 3 whose priority is set to the first. If the response notification from the mother mobile phone terminal 3 is not received within a predetermined time from the transmission of the call notification, the control unit 43 of the wireless I / F device 4 is the next highest priority mobile phone terminal 3, that is, Then, the call notification data (packet) is transmitted to the IP address of the father's mobile phone terminal 3 whose priority is set to the second.

  Alternatively, the first priority is set for the IP address of the mobile phone terminal 3 held by the parents, and the second priority is set for the IP address of the mobile phone terminal 3 held by the child and the grandparents. 1, when the signal transmission unit 41 receives a call signal transmitted from the doorphone slave unit 2 transmitted from the communication line Lz, the control unit 43 of the wireless I / F device 4 has first priority. Call notification data (packet) is sent to the IP addresses of the two mobile phone terminals 3 owned by the parents, and before receiving the response notification of any of the mobile phone terminals 3, the call is again made from the base unit 1. When the signal is received, the call notification data (packet) may be transmitted to the IP address of the mobile phone terminal 3 held by the child and grandparents with the second highest priority.

  As described above, according to the present embodiment, a call notification from the doorphone slave unit 2 is performed among a plurality of mobile phone terminals 3 that can communicate with the base unit 1 via the wireless I / F device 4. Can be arbitrarily set for each mobile phone terminal 3, for example, first, the parent mobile phone terminal 3 is notified of a call from the doorphone cordless handset 2, and if there is no response, then the child's mobile phone It is possible to set the telephone terminal 3 so as to make a call notification, thereby improving usability.

(Embodiment 3)
The present embodiment is an application of the technical idea of the present invention to an intercom system for an apartment house, as shown in FIG. 5, a doorphone child unit 2 installed outside each dwelling (outer entrance) of the apartment house, A base unit 1 installed in each dwelling unit of the apartment house and connected to the door phone slave unit 2 through the signal line Ls, and a wireless I / F device 4 connected to the base unit 1 through the communication line Lz And a telephone handset (lobby intercom device 7) that is installed at the common entrance (lobby) of the apartment house and is connected to the base unit 1 of each dwelling unit via the communication line Lx and the control line Ly. However, the basic configuration of the base unit 1 in this embodiment is the same as that of the first embodiment, and the door phone slave unit 2, the wireless I / F device 4, and the mobile phone terminal 3 are the same as those of the first embodiment. The same reference numerals are given to the constituent elements, and illustration and description thereof will be omitted as appropriate.

  The base unit 1 installed in each dwelling unit includes a demultiplexing processing unit 10, a monitor unit 11, a voice input / output unit 12, an operation input receiving unit 13, and a base unit control unit that are connected to the door phone slave unit 2 through the signal line Ls. 14. In addition to the signal transmission unit 15, the video signal and the audio signal that are frequency-division multiplexed and transmitted from the lobby intercom device 7 are separated via the communication line Lx and the audio signal is transmitted to the lobby intercom device 7 via the communication line Lx. A demultiplexing processing unit 16 that transmits signals and a control signal transmission / reception unit 17 that transmits / receives control signals to / from the lobby intercom apparatus 7 via the control line Ly are provided. Here, the communication line Lx and the control line Ly are composed of a multi-pair twisted pair cable having a plurality of pairs in the sheath, and the communication line Lx and the control line Ly (this is called the trunk line L1) connected to the lobby intercom device 7. .) Is connected to a communication line Lx and a control line Ly (referred to as a dwelling unit separate line L2), and the base unit 1 of each dwelling unit is connected. However, although the base unit 1 is always connected to the control line Ly of the unit separate line L2, it is not always connected to the communication line Lx and is connected only when called by the lobby intercom device 7. As described above, the base unit control unit 14 performs opening / closing control.

  The lobby intercom device 7 includes a microphone, a speaker, a microphone amplifier that amplifies the output of the microphone, a voice input / output unit 70 that has a speaker amplifier that amplifies the input to the speaker, an imaging unit 71 that images a visitor, and a residence number. An operation input receiving unit 72 having a number key for designation and a call button (not shown) for receiving an operation input, a control signal transmitting / receiving unit 73 for transmitting / receiving a control signal via the control line Ly, and a CPU A lobby intercom control unit 74 that controls each unit as a constituent element is provided. The lobby intercom control unit 74 modulates the video signal output from the imaging unit 71 and frequency-division-multiplexes the audio signal output from the audio input / output unit 70 and transmits the audio transmitted from the base unit 1 via the communication line Lx. It has a function to separate signals. Here, an address (dwelling unit number) is individually set in the base unit control unit 14 of the base unit 1, and when the input of the dwelling unit number is received by the operation input receiving unit 72 by operating the number key, the lobby intercom The control unit 74 generates a control signal (call command) designating the input dwelling unit number, and transmits the generated control signal from the control signal transmission / reception unit 73 to all the parent devices 1 via the control line Ly. If the voice input / output unit 70 includes at least one of an echo canceller and a voice switch, the lobby intercom device 7 can make a voice call (hands-free call).

  On the other hand, if the dwelling unit number included in the control signal is the own dwelling unit number, the main unit control unit 14 of the main unit 1 connects the communication line Lx of the dwelling unit separate line L2 and picks up images in the image pickup unit 71 of the lobby intercom device 7. The video of the visitor transmitted through the communication line Lx is displayed on the monitor unit 11 and a ringing tone is generated from the speaker of the voice input / output unit 12. Then, if the householder presses the response button of the operation input receiving unit 13 according to the ringing tone, it is possible to make a call only between the lobby intercom device 7 and the selected master unit 1, and the selected one is selected. It is possible to display a visitor imaged by the imaging unit 71 only on the master unit 1 on the monitor unit 11.

  Next, an operation related to a call between the lobby intercom device 7 and the mobile phone terminal 3 will be described.

  When the control signal (call command) transmitted from the lobby intercom device 7 via the control line Ly is received by the control signal transmission / reception unit 17, the base unit control unit 14 of the base unit 1 is carried via the wireless I / F device 4. A call notification is sent to the telephone terminal 3 and a calling sound is generated from the speaker of the voice input / output unit 12. In the mobile phone terminal 3, when the second wireless unit 33 receives the call notification transmitted from the wireless I / F device 4, the terminal control unit 36 causes the speaker 31 to ring. Then, if the householder who heard the ringing tone presses the response button provided in the operation input reception unit 35 of the mobile phone terminal 3, the terminal control unit 36 sends the wireless I / F device 4 from the second wireless unit 33. The response notification is performed, and the response notification is transmitted to the parent device 1 via the wireless I / F device 4. In the base unit 1, when the signal transmission unit 15 receives a response notification transmitted from the mobile phone terminal 3 via the wireless I / F device 4, the base unit control unit 14 sends the mobile phone via the wireless I / F device 4. A call permission notification is sent to the terminal 3, and the ringing sound that is ringing from the speaker of the voice input / output unit 12 is stopped. In the mobile phone terminal 3, when the second wireless unit 33 receives the call permission notification transmitted from the wireless I / F device 4, the terminal control unit 36 stops the ringing sound that is ringing from the speaker 31. Then, the video and audio (transmitted voice) transmitted from the lobby intercom device 7 to the base unit 1 are converted into video data and audio data by the base unit control unit 14, respectively, and the mobile phone via the wireless I / F unit 4. When the mobile phone terminal 3 receives the video data and audio data transmitted from the wireless I / F device 4 by the second wireless unit 33, the terminal control unit 36 regenerates the original video from the video data. It is configured and displayed on the monitor unit 34, and voice data is converted into an analog voice signal, and a voice (received voice) is generated from the speaker 31. In addition, voice (speech voice) input from the microphone 30 is converted into voice data by the terminal control unit 36 and transmitted from the second radio unit 33 to the master unit 1 via the radio I / F device 4. , When the voice data transmitted from the mobile phone terminal 3 is received via the wireless I / F device 4, the base unit control unit 14 converts the voice data into an analog voice signal, and the demultiplexing processing unit 16 receives the lobby interphone. The voice is transmitted to the device 7 and a voice (received voice) is sounded from the speaker of the voice input / output unit 70 of the lobby intercom device 7, and a telephone call can be made between the lobby intercom device 7 and the mobile phone terminal 3. However, a call and video transmission between the mobile phone terminal 3 and the lobby intercom device 7 via the base unit 1 and the wireless I / F device 4 are performed for a predetermined time after the response button is pressed on the mobile phone terminal 3. The process ends when the time elapses or the response button is pressed again.

  By the way, also in the present embodiment, as in the first embodiment, the intercom with the lobby intercom device 7 among the plurality of mobile phone terminals 3 whose IP addresses are registered in advance in the storage unit 40 of the wireless I / F device 4. The IP address of the cellular phone terminal 3 that permits the call and the IP address of the cellular phone terminal 3 that permits the extension call with the base unit 1 are set in the data table stored in the storage unit 40, and the wireless I / F The control unit 43 of the device 4 refers to the data table in the storage unit 40 when receiving a call notification from the lobby intercom device 7 from the base unit 1 and carries the IP address for which the intercom call of the lobby intercom device 7 is permitted. The call notification is transmitted only to the telephone terminal 3, and the storage unit 40 is referred to when the extension call notification from the parent device 1 is received from the parent device 1. So that only transmits the extension call notification to the IP address of the mobile telephone terminal 3 extension call is allowed between the master unit 1 and. However, the operation related to the intercom call between the lobby intercom device 7 and the mobile phone terminal 3 is basically the same as the operation related to the interphone call between the door phone slave unit 2 and the mobile phone terminal 3 described in the first embodiment. Omitted.

  Further, instead of setting whether or not to allow intercom calls, the storage unit 40 associates the order (priority order) of sending the call notification from the lobby intercom device 7 with the IP address of each mobile phone terminal 3 as in the second embodiment. The control unit 43 of the wireless I / F device 4 that has received the call signal from the base unit 1 refers to the data table of the storage unit 40 and determines the cellular phone terminal 3 having a high priority. You may make it perform a notification of a call in order. However, since the operation in this case is basically the same as the operation described in the second embodiment, the description is omitted.

  In the first to third embodiments, the system includes the wireless I / F device 4 separately from the parent device 1, but the wireless I / F device 4 may be built in the parent device 1.

1 is a system configuration diagram showing Embodiment 1 of the present invention. It is a sequence diagram for demonstrating the operation | movement regarding the telephone call of a doorphone subunit | mobile_unit and a mobile telephone terminal in the same as the above. It is a sequence diagram for demonstrating the operation | movement regarding an extension call of a mobile telephone terminal and a main | base station in the same as the above. It is explanatory drawing of the data table in the same as the above. It is a system block diagram which shows Embodiment 3 of this invention.

Explanation of symbols

1 Intercom base unit 2 Door phone handset (telephone handset)
3 Mobile phone terminal 4 Wireless interface (I / F) device 32 First wireless unit 33 Second wireless unit

Claims (1)

A telephone set installed outside the dwelling unit and an interphone master unit installed inside the dwelling unit and connected to the call set via a signal line, and receiving an audio signal through the signal line In an intercom system that allows interphone calls between the main unit and the handset,
Wireless communication between the interphone main unit and the mobile phone terminal with respect to a mobile phone terminal having a mobile phone function for making a call through a mobile phone network of a mobile phone operator and a wireless communication function for performing wireless communication without using the mobile phone network It has a wireless interface device that interfaces functions, and exchanges audio signals between the mobile phone terminal and the handset and between the intercom master and the mobile phone terminal via the wireless interface device,
The wireless interface device includes: a storage unit that stores an identification code of a mobile phone terminal that permits a call with a handset among a plurality of pre-registered mobile phone terminals; and a call notification from the intercom base unit by the handset only and control means for transmitting the call notification to the mobile phone terminal identification code call with the slave unit by referring to the storage means is permitted when receiving the,
The storage means of the wireless interface device stores an identification code that permits a call with the interphone base unit, and the control means of the wireless interface device stores storage means when a call notification from the interphone base unit is received from the interphone base unit. The interphone system is characterized in that the call notification is transmitted only to a mobile phone terminal having an identification code that is permitted to call the interphone base unit .

Images