JP6399456B2 - Intercom system - Google Patents

Description

The present invention relates to intercom systems.

  Conventionally, door phone slave units installed outdoors in dwelling units, intercom master units installed indoors in dwelling units and connected to door phone slave units via signal lines, and installed outdoors or indoors in dwelling units One or more sensor devices (for example, a fire detector, a gas leak detector, etc.) that notify the occurrence of an abnormality to the interphone base unit when an abnormality is detected, and by transmitting and receiving an audio signal through the signal line, the interphone An interphone system is provided in which an interphone call is possible between a master unit and a door phone cordless handset, and an alarm sound is generated from the interphone master unit when an abnormality is reported from any sensor device. (See Patent Document 1). 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 2).

  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. Interphone systems equipped with are also provided. Here, in such an interphone system, it is also possible to transmit an alarm sound by transmitting an abnormality occurrence (for example, occurrence of fire or gas leak) transmitted from the sensor device from an interphone main unit to a general telephone or a wireless sub unit. is there.

JP 10-326396 A 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 homes that are not subscribed to a subscriber telephone line, an alarm sound notifying that an abnormality has occurred cannot be sounded from a general telephone or a wireless slave unit, which is inconvenient.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to improve usability regarding an alarm associated with detection of an abnormality in a sensor device.

The intercom system of the present invention is a door phone slave installed outdoors in a dwelling unit, an interphone master unit installed indoors in the dwelling unit and connected to the door phone slave unit, and installed outdoors or indoors in the dwelling unit. And one or a plurality of sensor devices that notify the interphone base unit of the occurrence of an abnormality when an abnormality is detected, and an interphone call is performed between the interphone base unit and the door phone slave unit by exchanging audio signals. In an interphone system that is capable of generating an alarm sound from the interphone master when an abnormality occurrence is transmitted from any of the sensor devices, the interphone master includes a microphone and a speaker, a voice switch, A mobile phone that is equipped with at least one of echo cancellers and performs a voice call. A wireless interface that interfaces with a wireless communication function of a mobile phone terminal having a mobile phone function for making a call via a mobile phone network of a vendor and a wireless communication function for performing wireless communication in accordance with a wireless LAN standard without using the mobile phone network And the interphone base unit, when receiving a call signal from the door phone slave unit, causes a ringing sound from the speaker of the interphone base unit and receives the call notification via the wireless interface unit. When a ringing tone of a terminal is sounded and a response notification is received from the mobile phone terminal via the wireless interface means, a communication path is formed between the door phone slave unit and the mobile phone terminal, and the interphone master unit The occurrence of an abnormality transmitted from the sensor device is transmitted via the wireless interface means. Characterized in that to sound the alarm sound the mobile phone terminal notifies the mobile phone terminal.

The intercom system of the present invention has an effect that it is possible to improve usability regarding an alarm associated with detection of abnormality of the sensor device.

It is a system configuration figure showing an embodiment 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 the extension call of a mobile telephone terminal and an expansion | extension main | base station in the same as the above. It is a sequence diagram for demonstrating the operation | movement regarding the abnormality occurrence notification to a mobile telephone terminal and an expansion main | base station in the same as the above.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  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 interphone 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, and is installed outdoors or indoors in the dwelling unit and abnormal (for example, fire) ) Is detected, a plurality of sensor devices 5 and 6 are provided to notify the base unit 1 of the occurrence of an abnormality. 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 sensor device 5 is composed of a wired type fire detector connected to the master unit 1 by a communication line Lx, and is connected to a sensing unit 50 that detects smoke and temperature rise due to fire and a two-wire communication line Lx. 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 that notifies the occurrence of a fire from the wireless signal transmitter 51 when a fire is detected based on a 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.

  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 Wireless signal interface means for receiving a wireless signal transmitted from the sensor device 6, a contact input unit 16 for inputting a non-voltage contact signal output from the sensor device 5 to the communication line Lx And a wireless signal receiving unit 17. 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.

  The present embodiment also includes a communication device (hereinafter referred to as “additional master unit”) 4 having a function of performing wireless communication with the base unit 1 in the same manner as the mobile phone terminal 3. The extension base unit 4 includes a monitor unit 40 having a display device such as a liquid crystal display or a CRT, a microphone and a speaker, a microphone amplifier that amplifies the output of the microphone, and a voice input / output having a speaker amplifier that amplifies the input to the speaker. Unit 41, an operation input receiving unit 42 that includes an operation button such as a response button (not shown) and receives an operation input, an expansion master control unit 43 that controls each unit with a CPU as a main component, and wireless And a wireless communication unit 44 for performing wireless communication compliant with LAN standards (for example, IEEE 802.11 standards). Here, a unique IP address (private address) is assigned to each of the base unit 1, the mobile phone terminal 3, and the extension base unit 4, and can be recognized from each other 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. In addition, if the voice input / output unit 12 of the master unit 1 and the voice input / output unit 41 of the extension master unit 4 each include at least one of an echo canceller and a voice switch, the master unit 1 and the extension master unit 4 perform loudspeaking. A call (hands-free call) can be performed.

  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 the extension master unit 4 is installed, when the call notification transmitted from the master unit 1 is received by the wireless communication unit 44 of the extension master unit 4, the extension master unit control unit 43 receives from the speaker of the voice input / output unit 41. Ring the ringer. Then, if the householder who has heard the ringing tone presses a response button (not shown) provided in the operation input receiving unit 42 of the extension base unit 4, the extension base unit control unit 43 receives the base unit from the wireless communication unit 44. 1 is notified of the response. In base unit 1, when response notification transmitted from extension base unit 4 is received by wireless I / F unit 15, base unit control unit 14 forms a communication path via signal line Ls with doorphone slave unit 2. At the same time, the wireless I / F unit 15 sends a call permission notification to the extension base unit 4 and further stops the ringing sound that is ringing from the speaker of the voice input / output unit 12. In the extension base unit 4, when the wireless communication unit 44 receives the call permission notification transmitted from the base unit 1, the extension base unit control unit 43 stops the ringing tone that is ringing from the speaker of the voice input / output unit 41. Then, 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, and the extension base unit 4 is transmitted from the wireless I / F unit 15. When the video data and audio data transmitted from the base unit 1 are received by the wireless communication unit 44, the extension base unit control unit 43 reconstructs the original video from the video data and monitors it. The voice data is displayed on the unit 40 and the voice data is converted into an analog voice signal, and the voice (received voice) is generated from the speaker of the voice input / output unit 41. In addition, voice (speech voice) input from the microphone of the voice input / output unit 41 is converted into voice data by the extension master unit control unit 43 and transmitted to the master unit 1 from the wireless communication unit 44. In the master unit 1, When the audio data transmitted from the extension base unit 4 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 it to the intercom unit 2 from the demultiplexing processing unit 10. Then, a voice (received voice) is sounded from the speaker 21 of the door phone slave unit 2, and a call can be made between the door phone slave unit 2 and the extension master unit 4.

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

  When any of the sensor devices 5 and 6 that detect the occurrence of an abnormality (fire) is notified to the base unit 1, the base unit control unit 14 of the base unit 1 receives the mobile phone terminal 3 and the extension base unit from the wireless I / F unit 15. 4 is notified of the occurrence of an abnormality, an alarm sound for notifying the occurrence of the abnormality is sounded from the speaker of the voice input / output unit 12, and an alarm message is displayed on the monitor unit 11. In the mobile phone terminal 3, when the second wireless unit 33 receives the abnormality occurrence notification transmitted from the base unit 1, the terminal control unit 36 sounds an alarm sound from the speaker 31 and displays an alarm message on the monitor unit 34. Similarly, in the extension base unit 4, when the wireless communication unit 44 receives the abnormality occurrence notification transmitted from the base unit 1, the extension base unit control unit 43 sounds an alarm sound from the speaker of the voice input / output unit 41 and monitors the monitor. An alarm message is displayed on the unit 40. The alarm state in which the alarm sound is generated is canceled when a predetermined alarm release operation input is received by the respective operation input reception units 13, 35, and 42, and the alarm sound is stopped.

  As described above, according to the present embodiment, an alarm sound and an alarm message can be displayed not only in the base unit 1 but also in the mobile phone terminal 3 even if the subscriber telephone line is not contracted. Convenience related to alarms associated with detection of abnormalities 5 and 6 is improved, and the receipt of anomaly occurrence notification by the cellular phone terminal 3 does not go through the cellular phone network of the cellular phone operator. It is possible to reduce. Further, the extension base unit 4 can also sound an alarm sound in the same manner as the mobile phone terminal 3 and has an advantage that the alarm display is easy to see because the screen size of the monitor unit 40 is larger than that of the mobile phone terminal 3. . In addition, since the notification of the occurrence of abnormality is transmitted from the sensor devices 5 and 6 to the parent device 1 by a wireless signal, wiring for connecting the parent device 1 and the sensor devices 5 and 6 is not necessary, and wiring can be saved. In the present embodiment, since the wireless interface unit (wireless I / F unit 15) and the wireless signal interface unit (wireless signal receiving unit 17) are built in the base unit 1, an advantage that these installation spaces are unnecessary. There is also. However, both or one of these two means may be configured separately from the base unit 1, and further, wireless signal interface means is provided in at least one of the mobile phone terminal 3 and the extension base unit 4. It doesn't matter. In this case, in the cellular phone terminal 3 or the extension base unit 4 that has received the wireless signal transmitted from the sensor device 6 by the wireless signal interface unit, an abnormality occurs in the base unit 1 from the second radio unit 35 or the radio communication unit 44. Make a notification. Moreover, although the intercom system for detached houses was illustrated in this embodiment, it cannot be overemphasized that the same effect is produced even if the technical idea of this invention is applied to the intercom system for apartment houses. If the wireless I / F unit and the wireless signal receiving unit 17 are configured as thin panel-shaped units that can be juxtaposed on the side of the base unit 1, the appearance of the base unit 1 is not impaired, and it is easy. In addition, since it can be retrofitted, there is an advantage that usability is improved.

DESCRIPTION OF SYMBOLS 1 Intercom main unit 2 Door phone subunit 3 Mobile phone terminal 5, 6 Sensor device 15 Wireless interface (I / F) unit 32 First wireless unit 33 Second wireless unit

Claims (3)

When detecting an abnormality while being installed indoors in the dwelling unit, an interphone master unit installed in the dwelling unit and connected to the doorphone sub unit, and being installed outdoors or indoors in the dwelling unit 1 to a plurality of sensor devices for transmitting an abnormality to the interphone base unit, and interphone communication is possible between the interphone base unit and the door phone slave unit by exchanging audio signals, In the intercom system that sounds an alarm sound from the intercom master when an abnormality occurrence is reported from the sensor device,
The interphone master unit includes a microphone and a speaker, and at least one of a voice switch or an echo canceller for performing a voice call, and a mobile phone function for making a call via a mobile phone network of a mobile phone operator, Wireless interface means for interfacing with a wireless communication function of a mobile phone terminal having a wireless communication function for performing wireless communication in accordance with a wireless LAN standard without going through a mobile phone network,
When the interphone base unit receives a call signal from the door phone slave unit, the interphone base unit sounds a ringing tone from the speaker of the intercom base unit, and the ringing tone of the mobile phone terminal by a call notification via the wireless interface means When a response notification is received from the mobile phone terminal via the wireless interface means, a communication path is formed between the door phone slave unit and the mobile phone terminal,
The interphone master unit notifies the occurrence of abnormality transmitted from the sensor device to the mobile phone terminal via the wireless interface means, and causes the mobile phone terminal to sound an alarm sound . The interphone system according to claim 1, wherein the interphone master unit displays an alarm message on a monitor unit of the mobile phone terminal that has received the notification of the occurrence of the abnormality . A unique IP address is assigned to each of the interphone base unit and the mobile phone terminal, and the interphone base unit and the mobile phone terminal can recognize each other by the unique IP address assigned to each. according to claim 1 or 2 intercom system, characterized in that there.

Images