JP5291288B2 - Intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve usability associated with speech communication with a door intercom slave unit. <P>SOLUTION: A mobile phone terminal 3 having a mobile phone function for speech communication through a mobile phone network of a mobile phone carrier and a radio communication function for radio communication not through the mobile phone network has a radio I/F unit 15 which interfaces radio communication functions of a master unit 1 and the mobile phone terminal 3. Without making a contract for a subscriber telephone line, speech communication with the door intercom slave unit 2 can be performed using not only the master unit 1 but also the mobile phone terminal 3, and therefor, the usability is improved. Further, the speech communication with the door intercom slave unit 2 using the mobile phone terminal 3 is available not through the mobile phone network of the mobile phone carrier, and therefor, the cost needed for the speech communication can greatly be reduced. Furthermore, the mobile phone terminal 3 receives the notice of calling from the door intercom slave unit 2 and gives the notice while continuing speech communication through an outside line, therefor the resident is informed that there is a visitor while the outside-line speech communication is carried on, and the usability is improved. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to an intercom system.

  Conventionally, a door phone slave installed outdoors in a dwelling unit and an interphone master unit installed indoors in a dwelling unit and connected to the door phone slave via a signal line are provided, and an audio signal is transmitted via the signal line. There are various interphone systems that can perform interphone communication between an interphone master and a door phone slave by giving and receiving. Here, not only the interphone master unit but also a general telephone connected to a subscriber telephone line has already been provided with an interphone system that can make a call with a door phone slave unit (see Patent Document 1).

In addition, general telephones equipped with wireless slaves are now widely used, and wireless slaves capable of both calling with a doorphone slave via an intercom master and external calls via a telephone. There is also provided an intercom system provided with (see, for example, Patent Document 2).
JP-A-5-3579 JP-A-63-236427

  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 not easy to use a general telephone or a wireless handset to make a call with a door phone handset.

  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 door phone cordless handset.

In order to achieve the above-mentioned object, the invention of claim 1 is a door phone handset installed outside each dwelling unit of an apartment house, and is installed indoors in a dwelling unit and transmits and receives audio signals via a signal line. Is connected to the intercom master unit that can be used for interphone communication with the door phone slave unit, and the interphone master unit that is installed in the common entrance of the apartment house and installed in each dwelling unit of the apartment house via a communication line. , A lobby intercom device that sends and receives audio signals to and from the interphone base unit via a communication line, a mobile phone function for making a call through a mobile phone network of a mobile phone operator, and wireless communication without going through the mobile phone network Wireless interface means for interfacing the interphone base unit and the wireless communication function of the mobile phone terminal to a mobile phone terminal having a wireless communication function We were exchanging speech signals between the mobile phone terminal and the intercom slave unit and lobby intercom apparatus via the interface unit, the mobile phone terminal, intercom master unit during a call through the mobile telephone network of cellular operators When receiving the call notification of the door intercom or the lobby intercom device from the wireless interface means, the reception of the call notification is notified while continuing the call, and the notification sound is varied according to the type of the caller. characterized in that it comprises Te.

According to a second aspect of the present invention, in the first aspect of the present invention, the image pickup means for picking up an image of a visitor is provided in at least one of the door phone slave unit or the lobby intercom device, and an image picked up by the image pickup means is transmitted via a signal line. Displayed on the display means of the interphone master unit and transmitted from the interphone master unit to the mobile phone terminal via the wireless interface unit. The mobile phone terminal transmits the video while continuing the call when the video is received from the intercom base unit via the wireless interface means during a call via the mobile phone network of the mobile phone carrier. It is characterized by displaying.

The invention of claim 3 is the invention of claim 1 or 2 , wherein the interphone master unit is installed at the entrance of the dwelling unit or the common entrance of the housing complex when receiving the unlocking instruction from the mobile phone terminal via the wireless interface means. comprising an electric lock unlocking means for unlocking the electric lock that is, the mobile phone, the solution to the interphone parent device via the wireless interface unit while continuing the call via the mobile telephone network of the cellular phone service provider A lock command can be transmitted.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, when the interphone master unit receives a message response command from the mobile phone terminal via the wireless interface means, A message response means for transmitting to the slave unit or the lobby intercom device, and the mobile phone terminal responds to the interphone master via the wireless interface means while continuing a call through the mobile phone network of the mobile phone operator; A command can be transmitted.

The invention according to claim 5 is the one or more sensors according to any one of claims 1 to 4 , which are installed outdoors or indoors in a dwelling unit and which informs the interphone master unit of the occurrence of an abnormality when an abnormality is detected. The interphone master unit sounds an alarm sound when an abnormality occurrence is transmitted from any of the sensor devices, and determines the occurrence of the abnormality and the type of the sensor device that has detected the abnormality via the wireless interface means. When the abnormality detection information is transmitted to the mobile phone terminal, and the mobile phone terminal receives the abnormality detection information from the intercom base unit via the wireless interface means during a call through the mobile phone network of the mobile phone operator. The abnormality detection information is notified while continuing the call.

According to the invention of claim 1, even if the subscriber telephone line is not contracted, it is possible to make a call with the intercom base phone and the lobby intercom device using not only the interphone master unit but also the mobile phone terminal, so that the usability is improved. In addition, since calls can be made without going through the mobile phone network of the mobile phone operator when the mobile phone terminal communicates with the door phone slave unit and the lobby intercom device , the cost required for the call can be greatly reduced. In addition, since the mobile phone terminal receives the call notification of the door phone handset while continuing the call (external line call) via the mobile phone network of the mobile phone operator, the visitor can continue with the external line call being continued. Usability can be improved by informing the family members that they have come. Moreover, in the mobile phone terminal, the reception notification is received with sound while continuing the external line call, and the notification sound is made different according to the type of the caller. Can be selected to improve usability.

According to the second aspect of the present invention, since the video imaged by the imaging means of the door phone slave unit or the lobby intercom device can be displayed on the display device of the mobile phone terminal, the user can make a call while viewing the video of the visitor. In addition, it is possible to continue the outside line call while visually recognizing the video, improving usability.

According to the invention of claim 3 , when the unlock command is transmitted from the mobile phone terminal via the wireless interface means, the electric lock unlocking means of the interphone master unit unlocks the electric lock, so that the outside line call is continued. Thus, the electric lock can be unlocked by the mobile phone terminal, and the usability is improved.

According to the invention of claim 4 , when a message response command is transmitted from the mobile phone terminal via the wireless interface means, the message response means of the interphone base unit transmits a predetermined voice message to the door phone slave unit or the lobby intercom device. A voice message is sounded from the door phone sub-unit or the lobby intercom device, and it is possible to respond to the visitor while continuing the external line call, so that the usability is improved.

According to the invention of claim 5 , when an abnormality is detected in the sensor device, the abnormality detection information including the occurrence of the abnormality and the type of the sensor device that detected the abnormality is transmitted from the intercom base unit via the wireless interface means to the mobile phone terminal. When the abnormality detection information is received during an external line call, the mobile phone terminal notifies the abnormality detection information while continuing the call, so an abnormality (for example, fire, gas leak or It is possible to prevent the occurrence of suspicious persons from being overlooked.

(Embodiment 1)
In this embodiment, the technical idea of the present invention is applied to an intercom system for a detached house. As shown in FIG. 1, the intercom system 2 installed outside the dwelling unit (entrance) and the indoor unit of the dwelling unit. An intercom master unit (hereinafter abbreviated as “master unit”) 1 that is installed and 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 unit 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 component, and a wireless interface that interfaces the base unit 1 (base unit control unit 14) and the wireless communication function of the mobile phone terminal 3 Esu has and a (I / F) unit 15. The wireless I / F unit 15 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.

  Here, a unique IP address (private address) is assigned to each of the base unit 1 and the mobile phone terminal 3, and each can be recognized by the IP address. However, the details of wireless communication compliant with standards (for example, IEEE 802.11 standards) are well known, and thus the description thereof is omitted. Further, if the voice input / output unit 12 of the base unit 1 includes at least one of an echo canceller and a voice switch, the base unit 1 can make a voice call (hands-free call).

  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 via the signal line Ls, the base unit control unit 14 of the base unit 1 sends the radio I / F unit 15 to the mobile phone terminal 3. A call notification is made and a ringing tone 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 base unit 1, the terminal control unit 36 causes the speaker 31 to ring. Then, if a householder who has heard the ringing tone presses a response button (not shown) provided in the operation input reception unit 35 of the mobile phone terminal 3, the terminal control unit 36 makes the base unit 1 from the second radio unit 33. A response is notified to. In the base unit 1, when the response notification transmitted from the mobile phone terminal 3 is received by the wireless I / F unit 15, the base unit control unit 14 forms a communication path via the signal line Ls with the door phone slave unit 2. At the same time, the wireless I / F unit 15 sends a call permission notification to the mobile phone terminal 3, and further stops the ringing sound that is ringing 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 permission notification transmitted from the base unit 1, 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 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 mobile phone terminal 3 is converted from the wireless I / F unit 15. In the mobile phone terminal 3, when the video data and audio data transmitted from the base unit 1 are received by the second radio unit 33, the terminal control unit 36 reconstructs the original video from the video data and monitors the 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 (transmission 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 base unit 1, and the base unit 1 transmits from the mobile phone terminal 3. When the received audio data is received by the wireless I / F unit 15, the base unit control unit 14 converts the audio data into an analog audio signal and transmits the analog audio signal to the doorphone sub unit 2 from the demultiplexing processing unit 10. A voice (received voice) is sounded from the speaker 21, and a telephone call can be made between the door phone slave unit 2 and the mobile phone terminal 3. However, for telephone conversation and video transmission between the mobile phone terminal 3 and the door phone slave unit 2 via the base unit 1, a predetermined time has elapsed after the response button is pressed on the mobile phone terminal 3, or the response button is again pressed. Ends when is pressed.

  Further, when a call notification is transmitted from the base unit 1 when the mobile phone terminal 3 is making a call via the mobile phone network of the mobile phone carrier by the first wireless unit 32 (hereinafter referred to as an outside line call). The operation will be described with reference to the sequence diagram of FIG.

  In the mobile phone terminal 3 during an external line call, when the second wireless unit 33 receives the call notification transmitted from the base unit 1, the terminal control unit 36 superimposes the call sound of the external line call and rings the ring tone from the speaker 31. Let Then, if a householder who has heard the ringing tone presses a response button (not shown) provided in the operation input reception unit 35 of the mobile phone terminal 3, the terminal control unit 36 continues the outside line call and continues to the second wireless communication. The unit 33 sends a response notification to the base unit 1 and stops the ringing sound that is ringing from the speaker 31. However, information (for example, 1-bit data) indicating that the mobile phone terminal 3 is in an external line call is added to the response notification. In base unit 1, when response notification transmitted from mobile phone terminal 3 is received by wireless I / F unit 15, base unit control unit 14 that knows that mobile phone terminal 3 is in an external line call, intercom handset 2 The image pickup unit 23 is activated to transmit only the video of the visitor imaged by the image pickup unit 23, and the ringing sound that is ringing from the speaker of the voice input / output unit 12 is stopped. Then, the video transmitted from the intercom unit 2 to the base unit 1 is converted into video data by the base unit control unit 14 and transmitted to the mobile phone terminal 3 from the wireless I / F unit 15. When the second wireless unit 33 receives the video data transmitted from the base unit 1, the terminal control unit 36 reconstructs the original video from the video data and displays it on the monitor unit 34. Here, it is determined that it is not necessary for the housekeeper who has viewed the visitor's video to directly respond, and a predetermined key (for example, “1” and “*”) provided on the operation input receiving unit 35 is pressed. The terminal control unit 36 transmits a message response command from the second wireless unit 33 to the base unit 1. In the base unit 1, the base unit control unit 14 that has received the message response command via the wireless I / F unit 15 compresses and stores it in a memory (not shown) in advance (for example, “Now, hand Message is read and decompressed, and the voice message is converted into an analog signal and transmitted to the intercom 2 through the signal line Ls. In the intercom unit 2, a voice message transmitted from the base unit 1 through the signal line Ls is sounded from the speaker 21. When the housekeeper presses the response button, the terminal control unit 36 transmits an end notification to the base unit 1 from the second radio unit 33, and continues the outside line call. In the base unit 1 that has received the end notification, the base unit control unit 14 stops the imaging unit 23 of the door phone slave unit 2 and ends the video transmission to 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 voice, the video captured 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, and the video received from the door phone slave unit 2 is displayed on the monitor unit 34 of the mobile phone terminal 3. Since the information can be displayed, the mobile phone terminal 3 can be used to make a call while viewing the video of the visitor. Further, since the mobile phone terminal 3 receives and notifies the call notification of the door phone slave unit 2 while continuing the external line call, it is possible to inform the home visitor that the external line call is continued and is convenient for use. Will improve. Furthermore, when a message response command is transmitted from the mobile phone terminal 3, the message response means (master unit control unit 14) of the master unit 1 transmits a predetermined voice message to the doorphone slave unit 2, so that the voice from the door phone slave unit 2 is transmitted. You can answer a visitor while ringing a message and continuing an outside line call.

(Embodiment 2)
In the present embodiment, as shown in FIG. 4, a plurality of units that are installed outdoors or indoors in a dwelling unit and that notify the base unit 1 of the occurrence of an abnormality when an abnormality (for example, fire, gas leakage, intrusion of a suspicious person, etc.) is detected This is characterized in that the sensor devices 5 and 6 are provided. However, since the basic configuration of the present embodiment is the same as that of the first embodiment, common components are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate.

  The sensor device 5 is composed of a wired type fire detector connected to the parent device 1 by a communication line Lz, and is connected to a sensing unit 50 that detects smoke and a temperature rise due to a fire and a two-wire communication line Lz. The contact output unit 51 and the microcomputer, which senses a fire based on the detection output of the sensing unit 50, and outputs a non-voltage contact signal from the contact output unit 51 when the fire is detected. And a power supply unit 53 that supplies power to each unit. In addition, the sensor device 6 includes a wireless type fire detector that issues a wireless signal using radio waves as a medium, and conforms to a sensing unit 60 that detects smoke and a temperature increase caused by a fire, and a specific low power wireless standard. A wireless signal transmitter 51 for transmitting a wireless signal, and a wireless device that detects a fire from the wireless signal transmitter 51 when a fire is detected based on the detection output of the sensing unit 50 with a microcomputer as a main component. A sensor control unit 62 that transmits (reports) a signal and a power supply unit 63 that supplies power to each unit are provided. However, since the configuration of the sensor devices 5 and 6 is well known in the art, detailed description thereof is omitted.

  On the other hand, the base unit 1 in the present embodiment receives a wireless signal received from the contact input unit 16 that inputs a no-voltage contact signal output from the sensor device 5 to the communication line Lz and a wireless signal transmitted from the sensor device 6. Part 17.

  Next, an operation relating to an abnormality occurrence notification to the mobile phone terminal 3 will be described with reference to the sequence diagram of FIG.

  When any of the sensor devices 5 and 6 that detect an abnormality (fire) is notified to the base unit 1, the base unit control unit 14 of the base unit 1 issues a message to the mobile phone terminal 3 from the wireless I / F unit 15. Notification of the occurrence of an abnormality including the reported type of sensor device 5 or 6 (for example, a fire detector), an alarm sound for notifying the occurrence of abnormality from the speaker of the voice input / output unit 12, and an alarm message to the monitor unit 11 The warning sign is displayed. In the mobile phone terminal 3, when the second wireless unit 33 receives the abnormality notification transmitted from the base unit 1, the terminal control unit 36 sounds an alarm sound from the speaker 31, and causes the monitor unit 34 to display an alarm message or an alarm sign. At the same time, characters and symbols indicating the type of the sensor device 5 or 6 issued are displayed. The alarm state in which the alarm sound is generated is canceled when a predetermined alarm release operation input is received by the operation input receiving units 13 and 35, and the alarm sound is stopped. Further, in the terminal control unit 36 of the mobile phone terminal 3, when an abnormality occurrence notification is received from the base unit 1 during an outside line call, an alarm that notifies the occurrence of an abnormality from the speaker of the voice input / output unit 12 while continuing the outside line call A sound is generated and an alarm message and an alarm mark are displayed on the monitor unit 11.

  As described above, according to the present embodiment, when abnormality is detected by the sensor devices 5 and 6, the abnormality detection information including the occurrence of the abnormality and the type of the sensor devices 5 and 6 that detected the abnormality is carried from the parent device 1. When the abnormality detection information is received during an outside line call, the abnormality detection information is notified while continuing the outside line call when the cell phone terminal 3 receives the abnormality detection information during the outside line call. Occurrence of leakage or suspicious person intrusion) can be prevented from being overlooked.

(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. 6, a doorphone child device 2 installed outside (entrance) of each dwelling unit of the apartment house, Installed indoors in each dwelling unit of the housing complex and connected to the door phone 2 via the signal line Ls, and installed in the common entrance (lobby) of the housing complex, and each of the communication lines Lx and control And a lobby intercom device 7 connected to the base unit 1 of each dwelling unit via a line Ly. However, since the basic configuration of the base unit 1 in this embodiment is the same as that in the second embodiment, and the doorphone slave unit 2 and the mobile phone terminal 3 are the same as those in the first embodiment, the same components are the same. Reference numerals are assigned and illustrations and descriptions are 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 radio I / F unit 15, the contact input unit 16, and the wireless signal receiving unit 17, the video signal and the audio signal that are frequency-division-multiplexed and transmitted from the lobby intercom device 7 through the communication line Lx are separated and lobbyed. A demultiplexing processing unit 18 that transmits audio signals to the intercom device 7 via the communication line Lx, and a control signal transmission / reception unit 19 that transmits and receives control signals to and from the lobby interphone device 7 via the control line Ly. It has. 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).

  The lobby intercom control unit 74 of the lobby intercom apparatus 7 is connected to the electric lock 8 installed at the common entrance via the signal line Lw, and locks and unlocks the electric lock 8 by a control signal transmitted via the signal line Lw. It has a function to do. However, the configuration and operation of this type of electric lock 8 are well known in the art and will not be described in detail.

  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 (calling 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 receives the mobile phone terminal from the wireless I / F unit 15. 3 and a call sound is emitted 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 base unit 1, the terminal control unit 36 causes the speaker 31 to ring. At this time, the terminal control unit 36 makes it easy to determine whether the calling source is the doorphone sub unit 2 or the lobby intercom device 7 by ringing a ringing tone different from the ringing tone that rings when calling from the door phone sub unit 2. doing. 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 notifies the base unit 1 of the response from the second wireless unit 33. I do. In base unit 1, when wireless I / F unit 15 receives the response notification transmitted from mobile phone terminal 3, base unit control unit 14 sends a call permission notification to mobile phone terminal 3 from wireless I / F unit 15. In addition, the ringing tone 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 base unit 1, 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 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 terminal 3 is converted from the wireless I / F unit 15. In the mobile phone terminal 3, when the video data and audio data transmitted from the base unit 1 are received by the second radio unit 33, the terminal control unit 36 reconstructs the original video from the video data and monitors the 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 (transmission 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 base unit 1, and the base unit 1 transmits from the mobile phone terminal 3. When the received audio data is received by the wireless I / F unit 15, the parent device control unit 14 converts the audio data into an analog audio signal and transmits it to the lobby intercom device 7 from the demultiplexing processing unit 16. A voice (received voice) is sounded from the speaker of the voice input / output unit 70, and a call can be made between the lobby intercom device 7 and the mobile phone terminal 3. However, for a call and video transmission between the mobile phone terminal 3 and the lobby intercom device 7 via the base unit 1, a predetermined time elapses after the response button is pressed on the mobile phone terminal 3, or the response button is pressed again. Ends when is pressed.

  When the mobile phone terminal 3 receives a call notification from the base unit 1 during an external line call, the mobile phone terminal 3 during the external line call receives the call notification transmitted from the base unit 1 by the second radio unit 33. Then, the terminal control unit 36 superimposes the call sound of the outside line call and causes the speaker 31 to ring. Then, if a householder who has heard the ringing tone presses a response button (not shown) provided in the operation input reception unit 35 of the mobile phone terminal 3, the terminal control unit 36 continues the outside line call and continues to the second wireless communication. The unit 33 sends a response notification to the base unit 1 and stops the ringing sound that is ringing from the speaker 31. However, information (for example, 1-bit data) indicating that the mobile phone terminal 3 is in an external line call is added to the response notification. In the base unit 1, when the wireless I / F unit 15 receives the response notification transmitted from the mobile phone terminal 3, the base unit control unit 14 that knows that the mobile phone terminal 3 is in an external line call, the lobby intercom device 7. The image pickup unit 71 is activated to transmit only the video of the visitor imaged by the image pickup unit 71, and the ringing sound that is ringing from the speaker of the voice input / output unit 12 is stopped. Then, the video transmitted from the lobby intercom device 7 to the base unit 1 is converted into video data by the base unit control unit 14 and transmitted to the mobile phone terminal 3 from the wireless I / F unit 15. When the second wireless unit 33 receives the video data transmitted from the base unit 1, the terminal control unit 36 reconstructs the original video from the video data and displays it on the monitor unit 34.

  Here, it is determined that there is no need for a family member who has viewed the visitor's video to enter the common entrance, and a predetermined key (for example, “1” and “*”) provided on the operation input receiving unit 35 is pressed. Then, the terminal control unit 36 transmits a message response command from the second radio unit 33 to the base unit 1. In the base unit 1, the base unit control unit 14 that has received the message response command via the wireless I / F unit 15 compresses and stores it in a memory (not shown) in advance (for example, “Now, hand Is read and decompressed, and the voice message is converted into an analog signal and transmitted to the lobby intercom apparatus 7 via the communication line Lx. In the lobby intercom device 7, a voice message transmitted from the parent device 1 via the communication line Lx is played from the speaker of the voice input / output unit 70.

  On the other hand, if it is determined that a householder who has viewed the video of the visitor needs to be invited into the common entrance and presses a predetermined key (for example, “#”) provided in the operation input receiving unit 35, terminal control is performed. The unit 36 transmits an electric unlocking command from the second wireless unit 33 to the base unit 1. In the base unit 1, in response to the electric unlocking command received via the wireless I / F unit 15, the base unit control unit 14 sends an electric unlocking control signal to the lobby intercom apparatus 7 via the control line Ly. Send. And if the lobby intercom control part 74 of the lobby intercom apparatus 7 receives the said control signal via the control line Ly, it will unlock the electric lock 8 by transmitting a control signal via the signal line Lw. Further, when the housekeeper presses the response button, the terminal control unit 36 transmits an end notification to the base unit 1 from the second wireless unit 33, and continues the outside line call. In the base unit 1 that has received this end notification, the base unit control unit 14 transmits a control signal to the lobby intercom device 7 via the control line Ly, and the lobby intercom control unit of the lobby intercom device 7 that has received this control signal. 74 stops the imaging unit 71 and ends the video transmission to the mobile phone terminal 3.

  As described above, according to the present embodiment, even in the intercom system for collective housing, it is possible to make a call with the lobby intercom device 7 using not only the base unit 1 but also the mobile phone terminal 3, and the mobile phone terminal 3 Since the call notification is received with sound while continuing the outside line call, and the notification sound (ringing sound) is made different depending on the type of the calling source (the doorphone slave unit 2 and the lobby intercom device 7), the calling source You can select a response method according to the type. In addition, the unlocking command can be transmitted from the mobile phone terminal 3 to unlock the electric lock 8, and the usability is improved. However, in the present embodiment, only the case where the electric lock 8 is installed at the common entrance is illustrated, but it is also possible to unlock the electric lock installed at the entrance of each dwelling unit from the mobile phone terminal 3 via the master unit 2. Is possible.

  In the first to third embodiments, the wireless I / F unit 15 serving as a wireless interface unit is built in the parent device 1. However, it is not always necessary to incorporate the wireless I / F unit in the parent device 1. If it is configured as a thin panel-shaped unit that can be juxtaposed on the side of the machine 1, there is an advantage that the aesthetics of the main machine 1 are not spoiled, and it can be easily retrofitted, thereby improving usability. .

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 door phone cordless handset and a mobile telephone terminal in the same as the above. It is a sequence diagram for demonstrating the operation | movement regarding the telephone call of a portable telephone terminal in the same way as above with a door phone cordless handset. It is a system block diagram which shows Embodiment 2 of this invention. It is a sequence diagram for demonstrating the operation | movement regarding the abnormality generation notification to a mobile telephone terminal in the same as the above. It is a system block diagram which shows Embodiment 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intercom main unit 2 Door phone cord 3 Mobile phone terminal 15 Wireless interface (I / F) part 32 1st radio part 33 2nd radio part

Claims (5)

An intercom parent installed outdoors in each dwelling unit of an apartment house, and an intercom parent that can be installed inside a dwelling unit and can communicate with the doorphone sub unit by sending and receiving audio signals via signal lines Is connected to the interphone master unit installed at the common entrance of the apartment house and at each dwelling unit of the apartment house via a communication line, and an audio signal is transmitted to the interphone master unit via the communication line. Interphone master unit for a lobby intercom device that transmits and receives a mobile phone terminal having a mobile phone function for making a call via a mobile phone network of a mobile phone operator and a wireless communication function for performing wireless communication without going through the mobile phone network Wireless interface means for interfacing the wireless communication function of the mobile phone terminal with the mobile phone terminal and the door via the wireless interface means We were exchanging speech signals between the Nko condenser and lobby intercom apparatus,
When a mobile phone terminal receives a call notification of a door phone slave unit or a lobby intercom device via a wireless interface means from an interphone master unit during a call via a mobile phone network of a mobile phone operator, the mobile phone terminal continues the call. An intercom system characterized by notifying the reception of the call notification and differentiating the notification sound according to the type of caller . An image pickup means for picking up an image of a visitor is provided in at least one of the door phone sub-unit and the lobby intercom device, and an image picked up by the image pickup means is transmitted to the interphone main unit via the signal line, and the door phone sub-unit or the lobby interphone The video received from the device is displayed on the display means provided in the intercom base unit, and the video is transmitted from the intercom base unit to the mobile phone terminal via the wireless interface unit.
The mobile phone terminal displays the video while continuing the call when the video is received from the intercom base unit via the wireless interface means during a call via the mobile phone network of the mobile phone carrier. The intercom system according to claim 1. The interphone master unit includes an electric unlocking means for unlocking an electric lock installed at the entrance of the dwelling unit or the common entrance of the apartment when receiving an unlocking instruction from the mobile phone terminal via the wireless interface means. ,
The mobile phone terminal is capable of transmitting the unlocking command to the interphone base unit through the wireless interface means while continuing the call through the mobile phone network of the mobile phone operator. The listed intercom system. The interphone master unit includes message response means for transmitting a predetermined voice message to the door phone cordless handset or the lobby intercom device when a message response command is received from the mobile phone terminal via the wireless interface means.
The mobile phone terminal is capable of transmitting the message response command to the interphone base unit via the wireless interface means while continuing the call through the mobile phone network of the mobile phone operator. The intercom system according to any one of the above. One or more sensor devices that are installed outdoors or indoors in a dwelling unit and that inform the interphone master unit of the occurrence of an abnormality when an abnormality is detected,
The interphone base unit sounds an alarm sound when an abnormality occurrence is transmitted from any of the sensor devices, and also includes abnormality detection information including the type of the sensor device that has detected the occurrence of the abnormality and the abnormality via the wireless interface means. To your mobile phone
When the mobile phone terminal receives the abnormality detection information from the intercom base unit via the wireless interface means during a call via the mobile phone network of the mobile phone operator, the mobile phone terminal notifies the abnormality detection information while continuing the call. intercom system according to any one of claims 1 to 4, characterized in that.

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