JP2009290347A - Intercom system and intercom master unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intercom system and an intercom master unit which is able to notice electric power stealing action, or the like, from an outdoor electrical outlet to a resident of a residence. <P>SOLUTION: When a change in the usage condition of the outdoor electrical plug 4 is discriminated, based on a signal from a current detector 5, which detects the current flowing in the outdoor electrical plug 4, the intercom master unit 1 outputs a voice message for notifying the change of the usage condition of the outdoor electrical plug 4 to the resident of the residence. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an intercom system in which an interphone master unit and a door phone slave unit are connected so as to be able to talk.

  Previously, the intercom master unit installed in the house and the door phone unit installed at the front door of the house were connected so that they could talk to each other so that calls could be made between the residents and visitors. Intercom systems are widespread. In recent years, various attempts have been made to increase the utility value by adding a crime prevention function to this type of intercom system (see, for example, Patent Document 1).

In Patent Literature 1, a human body detection sensor is built in a doorphone slave unit of an interphone system, and when a human body is detected for a predetermined time by the human body detection sensor, an alarm sound is sounded by an interphone master unit, and a doorphone is also used. It is described that a warning sound is sounded in the slave unit.
Japanese Patent No. 3582305

  By the way, an outlet is often installed outdoors in a residence as an environment for using an intercom system in consideration of the use of an electric product outdoors. In a residence having such an outdoor outlet, it is required to take some measures to prevent theft from the outdoor outlet.

  However, since the intercom system described in Patent Document 1 is configured to detect a suspicious person with the human body detection sensor built in the doorphone slave unit, the suspicious person existing around the doorphone slave unit can be detected, but the outdoor outlet is not installed. If it is installed at a location away from the door phone unit, it will not be possible to detect a suspicious person trying to steal power from the outdoor outlet, and it will not be possible to notify the resident even if power is stolen from the outdoor outlet. .

  The present invention was devised in view of the conventional situation as described above, and provides an interphone system and an interphone master unit capable of notifying a resident of a dweller of a power theft from an outdoor outlet. It is an object.

  The intercom system of the present invention is provided with an outdoor outlet monitoring means for monitoring the usage state of an outdoor outlet in a residence, and the outdoor outlet monitoring means is connected to the interphone main unit, and the interphone main unit changes the usage state of the outdoor outlet. The above-described problem is solved by notifying the change in the usage state of the outdoor outlet when it is done.

  According to the present invention, when the use state of the outdoor outlet changes, the change in the use state of the outdoor outlet is notified from the intercom master unit, so that the resident of the residence is informed of the theft of power from the outdoor outlet. Can do.

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

[First Embodiment]
FIG. 1 is a system configuration diagram illustrating an example of an interphone system to which the present invention is applied, FIG. 2 is a block diagram illustrating a functional configuration of an interphone master unit, and FIG. 3 is a block diagram illustrating a functional configuration of a door phone slave unit. is there. First, the configuration of the intercom system of this embodiment will be described with reference to these drawings.

  As shown in FIG. 1, the intercom system according to the present embodiment includes an interphone master unit 1 installed indoors in a residence and a door phone slave unit 2 installed at a front door of the residence. The intercom master unit 1 and the door phone slave unit 2 are connected to each other via a two-wire signal line so that they can talk to each other. The intercom base unit 1 is supplied with a household AC 100 V power supply from a distribution board 3 installed in a residence. The AC 100V power supplied to the intercom master unit 1 is also transmitted to the door phone slave unit 2 via the two-wire signal line.

  In addition, an outdoor outlet 4 is provided outdoors in a residence to which the interphone system of the present embodiment is applied, and the current detector 5 detects the current flowing from the distribution board 3 to the outdoor outlet 4. Yes. When the current detector 5 detects the current flowing into the outdoor outlet 4, the usage state of the outdoor outlet 4 is monitored (outdoor outlet monitoring means). In the intercom system according to the present embodiment, the current detector 5 is connected to the interphone base unit 1 through a signal line, and the signal output from the current detector 5 is input to the interphone base unit 1 so that the outdoor outlet 4 can be used. A change in state can be determined by the intercom master unit 1.

  When the configuration of the interphone master unit 1 is viewed functionally, as shown in FIG. 2, the power generation unit 11, the signal input unit 12, the operation input unit 13, the status display unit 14, and the audio output unit 15, a call control unit 16, a speaker 17, a microphone 18, a video reception unit 19, a video display unit 20, and a control unit 21.

  The power generation unit 11 receives the supply of AC 100V power from the distribution board 3 and generates power for operating the intercom base unit 1. The power generated by the power generation unit 11 is also supplied from the power supply unit 12 to the door phone sub unit 2 via the two-wire signal line, and is also used as a power source for operating the door phone sub unit 2.

  The signal input unit 13 receives the signal output from the current detector 5 that detects the current flowing into the outdoor outlet 4 as described above, that is, the signal indicating the usage state of the outdoor outlet 4, and transmits the signal to the control unit 21. To do.

  The operation input unit 14 receives various input operations for a resident of the residence to operate the interphone master unit 1 such as a pressing operation of an operation button, and transmits the operation signal to the control unit 21.

  The state display unit 14 displays the operation state of the intercom base unit 1 by lighting or blinking an indicator using, for example, an LED or the like according to control by the control unit 21.

  When it is determined that the usage state of the outdoor outlet 4 has changed based on the signal from the current detector 5 input to the signal input unit 12, the audio output unit 15 performs the outdoor outlet according to the control by the control unit 21. 4 is output from the speaker 17 by a voice message or the like.

  The call control unit 16 controls a call made by the interphone master unit 1 with the door phone slave unit 2 according to control by the control unit 21, and an audio signal input from the microphone 18 is transmitted via a two-wire signal line. Then, the speaker 17 is operated in accordance with the audio signal transmitted from the doorphone child unit 2 through the two-wire signal line, and the sound from the doorphone child unit 2 is output. The call control unit 16 also has a function of outputting a ringing sound from the speaker 17 when an operation signal for the calling operation is transmitted from the door phone slave unit 2.

  The video receiving unit 19 receives the video signal transmitted from the door phone slave unit 2 through the two-wire signal line and transmits the video signal to the video display unit 20.

  The video display unit 20 operates according to the control by the control unit 21 and displays the video from the door phone slave unit 2 received by the video reception unit 19 on the monitor screen.

  The control unit 21 controls the overall operation of the intercom base unit 1 in an integrated manner. This control unit 21 changes the usage state of the outdoor outlet 4 based on the signal from the current detector 5 input to the signal input unit 12 as a function that is particularly characteristic in the interphone master unit 1 of the present embodiment. When the determination is made and it is determined that the usage state of the outdoor outlet 4 has changed, the voice output unit 15 has a function of outputting the change in the usage state of the outdoor outlet 4 as a voice message from the speaker 17.

  When the configuration of the intercom 2 is functionally grasped, as shown in FIG. 3, the power receiving unit 31, the camera unit 32, the video transmission unit 33, the call operation input unit 34, and the call control unit, as shown in FIG. 35, a speaker 36, a microphone 37, and a control unit 38.

  The power receiving unit 31 receives the power generated by the power generation unit 11 of the intercom base unit 1 and supplied from the power supply unit 12 via the two-wire signal line. The doorphone sub unit 2 according to the present embodiment is configured to operate by the power received by the power receiving unit 31, that is, the power supplied from the interphone master unit 1.

  Under the control of the control unit 38, the camera unit 32 captures an image around the entrance of the residence where the doorphone child unit 2 is installed. The video signal of the video imaged by the camera unit 32 is transmitted from the video transmission unit 33 to the interphone base unit 1 via the two-wire signal line, and is displayed on the video display unit 20 of the interphone base unit 1 on a monitor.

  When the call button is pressed by a visitor, the call operation input unit 34 receives the operation input and transmits an operation signal for the call operation to the control unit 38.

  The call control unit 35 controls a call with the intercom master unit 2 between the interphone base unit 1 according to the control of the control unit 38, and the voice signal input from the microphone 37 is transmitted via the two-wire signal line. Are transmitted to the interphone master unit 1 and the speaker 36 is operated in accordance with the audio signal transmitted from the interphone master unit 1 via the two-wire signal line to output the sound from the interphone master unit 1. In addition, when the call button is pressed by a visitor, the call control unit 35 transmits a call operation operation signal to the interphone master unit 1 via the two-wire signal line in accordance with control by the control unit 38. Also, it has a function of outputting a back tone from the speaker 36.

  The control unit 38 comprehensively controls the overall operation of the door phone slave unit 2 such as a call with the interphone base unit 1, output of a back tone, image capturing by the camera unit 32 and transmission of the video signal. .

  Next, the operation of the intercom system configured as described above will be described.

  When a visitor presses the call button of the doorphone slave unit 1 at the entrance of the residence, an operation signal for the call operation is transmitted from the doorphone slave unit 1 to the interphone master unit 1, and the call sound is output from the speaker 17 of the interphone master unit 1. Is output, and a back tone is output from the speaker 36 of the door phone slave unit 2. At this time, image capturing by the camera unit 32 of the doorphone slave unit 2 is started, the image signal is transmitted to the interphone master unit 1, and the video around the entrance is monitored on the video display unit 20 of the interphone master unit 1. Is displayed.

  Thereafter, the call control unit 16 of the interphone master unit 1 and the call control unit 35 of the door phone slave unit 2 make the interphone master unit 1 and the door phone slave unit 2 ready to talk. Then, when a resident of the residence speaks into the microphone 18 of the interphone master unit 1, the voice of the resident is output from the speaker 36 of the doorphone slave unit 2, and the visitor faces the microphone 37 of the doorphone subunit 2. When speaking, the voice of the visitor is output from the speaker 17 of the intercom master unit 1.

  In the interphone system of the present embodiment, a signal from the current detector 5 that detects the current flowing into the outdoor outlet 4 is input to the interphone base unit 1, and the control unit 21 of the interphone base unit 1 performs this current detection. The change in the usage state of the outdoor outlet 4 is determined based on the signal from the device 5. When the usage state of the outdoor outlet 4 changes, the voice output unit 15 of the interphone master unit 1 outputs a voice message for notifying the resident of the change of the usage state from the speaker 17 of the interphone master unit 1. I try to let them.

  For example, when the use of the outdoor outlet 4 is started due to a theft of electric power or the like, the current flowing into the outdoor outlet 4 increases, so that the signal from the current detector 5 changes according to this current change. The control unit 21 of the intercom base unit 1 determines that the usage state of the outdoor outlet 4 has changed from “unused” to “used” from the change in the signal from the current detector 5. In this case, the audio output unit 15 informs that the usage status of the outdoor outlet 4 has changed from “unused” to “used”, for example, “Outdoor outlet is in use. Is output from the speaker 17.

  Moreover, since the electric current which flows into the outdoor outlet 4 will reduce when use of the outdoor outlet 4 is complete | finished, the signal from the current detector 5 changes according to this electric current change. Based on the change in the signal from the current detector 5, the control unit 21 of the intercom base unit 1 determines that the usage state of the outdoor outlet 4 has changed from “used” to “unused”. In this case, the audio output unit 15 informs that the usage state of the outdoor outlet 4 has changed from “used” to “not used”, for example, “The plug has been removed from the outdoor outlet. A voice message such as “Please” is output from the speaker 17.

  FIG. 4 is a flowchart showing a specific example of processing executed by the intercom base unit 1 in order to realize the function of notifying the change in the usage state of the outdoor outlet 4 as described above.

  First, in step S101, a signal output from the current detector 5 is input to the signal input unit 12 at a predetermined interval. In step S102, the control unit 21 determines whether the current flowing into the outdoor outlet 4 has changed based on the signal from the current detector 5 input to the signal input unit 12 in step S101. The signal input in step S101 and the determination in step S102 are repeated until the current flowing into the outdoor outlet 4 changes. When it is determined that the current flowing into the outdoor outlet 4 has changed, the process proceeds to the next step S103.

  In step S103, the controller 21 determines whether the current flowing into the outdoor outlet 4 has increased or decreased. If the current flowing into the outdoor outlet 4 has increased, the usage status of the outdoor outlet is “unused”. It is determined that the state has changed from “use” to “use”, and the process proceeds to step S104. On the other hand, if the current flowing into the outdoor outlet 4 is decreasing, it is determined that the usage state of the outdoor outlet has changed from “used” to “unused”, and the process proceeds to step S106.

  In step S104, the voice output unit 15 informs the resident of the residence that the use of the outdoor outlet 4 has started, for example, a voice message such as “Outdoor outlet is in use. A message is output from the speaker 17. Thereafter, in step S105, the flag indicating that the voice message for starting use of the outdoor outlet 4 as described above is output is turned on, and the process returns.

  On the other hand, in step S106, it is confirmed whether or not the flag indicating that the voice message for starting the use of the outdoor outlet 4 has been output is turned on, and that the flag is turned on, that is, the use of the outdoor outlet 4 is started. In step S107, a voice message notifying the resident of the dwelling that the use of the outdoor outlet 4 has ended, for example, “The plug has been removed from the outdoor outlet. A voice message such as “Please check” is output from the speaker 17. And the flag which shows having output the voice message of the start of use of the outdoor outlet 4 is switched off, and it returns. If flag-on cannot be confirmed in step S106, it is assumed that a malfunction has occurred for some reason, and the process returns without outputting a voice message.

  In the above example, the interphone master unit 1 inputs a signal from the current detector 5 at a predetermined interval, monitors the change in the signal from the current detector 5, and changes the current flowing into the outdoor outlet 4. However, when the current flowing into the outdoor outlet 4 changes, a signal indicating a change in current is output from the current detector 5 to the interphone base unit 1 so that the interphone base unit 1 However, it may be determined that the current flowing into the outdoor outlet 4 has changed when a signal indicating this current change is input.

  As described above in detail with specific examples, the intercom system according to the present embodiment determines whether the outdoor outlet 4 is in use based on the signal from the current detector 5 that detects the current flowing into the outdoor outlet 4. When it is determined that the change has occurred, the intercom base unit 1 outputs a voice message for informing the residents of the residence of a change in the usage state of the outdoor outlet 4. Therefore, according to this intercom system, it is possible to make the residents of the residence accurately recognize that the usage state of the outdoor outlet 4 has changed, and the residents of the residence, for example, have the usage status of the outdoor outlet 4 “unused”. By listening to a voice message indicating that the status has changed from “Used” to “Used”, it is recognized that the electric power is being stolen from the outdoor outlet 4, and the usage status of the outdoor outlet 4 is changed from “Used” to “Not used”. By listening to a voice message indicating that the status has changed to “Use”, it will be recognized that the plug inserted into the outdoor outlet 4 has been removed due to mischief, etc. Can be achieved.

  Moreover, the intercom device 2 in the intercom system according to the present embodiment has a function of photographing a video around the entrance by the camera unit 32 and a function of outputting sound from the speaker 36. Since it is connected to the interphone main unit 1 that determines the change in the usage state of the outlet 4, when the usage state of the outdoor outlet 4 changes, for example, the camera unit 32 of the door phone slave unit 2 takes a picture of a suspicious person. It is also possible to make a response such as outputting a warning for a suspicious person from the speaker 36 of the door phone slave unit 2.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. As shown in FIG. 5, the intercom system according to the present embodiment includes a plug-in detector 6 instead of the current detector 5 described in the first embodiment as an outdoor outlet monitoring unit that monitors the usage state of the outdoor outlet 4. The plug insertion detector 6 is connected to the interphone base unit 1 by a signal line, and the signal from the plug insertion detector 6 is input to the interphone base unit 1 to change the usage state of the outdoor outlet 4 to the interphone base unit. This is an example in which the determination can be made at 1. In addition, since the other structure in the intercom system of this embodiment is the same as 1st Embodiment mentioned above, the description which overlaps with 1st Embodiment is abbreviate | omitted below, and only the characteristic part of this embodiment is demonstrated. explain.

  FIG. 6 is a diagram illustrating a specific example of the plug-in detector 6 for monitoring the usage state of the outdoor outlet 4. For example, as shown in FIG. 6, the plug insertion detector 6 has a micro switch 6 a built in the outdoor outlet 4, and detects insertion / removal of the plug with respect to the outdoor outlet 4 by turning on / off the micro switch 6 a. For example, the micro switch 6a exposes the operating element to the outside between the pair of plug terminal insertion holes 4a and 4b of the outdoor outlet 4, and is turned on when the operating element is pressed into the outdoor outlet 4. It is a configuration.

  In the intercom system of this embodiment, the signal from the plug-in detector 6, that is, the on / off signal of the micro switch 6 a corresponding to the plugging / unplugging of the outdoor outlet 4 is input to the signal input unit 12 of the intercom master unit 1. The control unit 21 of the intercom base unit 1 determines the change in the usage state of the outdoor outlet 4 based on the signal from the plug insertion detector 6. When the usage state of the outdoor outlet 4 changes, the voice output unit 15 of the interphone master unit 1 outputs a voice message for notifying the resident of the change of the usage state from the speaker 17 of the interphone master unit 1. I try to let them.

  For example, when the use of the outdoor outlet 4 is started due to a theft of electric power or the like, a plug is inserted into the outdoor outlet 4, so that the insertion of this plug pushes the micro switch 6a of the plug insertion detector 6, and the plug insertion detector 6 The switch-on signal is input to the signal input unit 12 of the intercom base unit 1 from When the switch-on signal from the plug-in detector 6 is input to the signal input unit 12, the control unit 21 of the intercom base unit 1 changes the usage state of the outdoor outlet 4 from “unused” to “used”. Is determined. In this case, the voice output unit 15 informs that the usage state of the outdoor outlet 4 has changed from “unused” to “used”, for example, “Outdoor outlet is being used. A voice message such as “Please” is output from the speaker 17.

  Further, when the use of the outdoor outlet 4 is finished, the plug inserted into the outdoor outlet 4 is removed, so that the micro switch 6a is released from the plug, and the signal input unit of the interphone master unit 1 from the plug insertion detector 6 is released. A switch-off signal is input to 12. When the switch-off signal from the plug-in detector 6 is input to the signal input unit 12, the control unit 21 of the intercom base unit 1 changes the usage state of the outdoor outlet 4 from “used” to “unused”. Is determined. In this case, the voice output unit 15 notifies the user that the usage status of the outdoor outlet 4 has changed from “used” to “not used”, for example, “the plug has been removed from the outdoor outlet. Please output a voice message from the speaker 17.

  FIG. 7 is a flowchart showing a specific example of processing executed by the intercom base unit 1 in order to realize the function of notifying the change in the usage state of the outdoor outlet 4 as described above in the intercom system of the present embodiment. is there.

  First, in step S201, a switch on / off signal from the plug-in detector 6 is input to the signal input unit 12 at a predetermined interval. In step S202, based on the signal from the plug insertion detector 6 input to the signal input unit 12 in step S201, the control unit 21 determines whether the usage state of the outdoor outlet 4 has changed. The signal input in step S201 and the determination in step S202 are repeated until the usage state of the outdoor outlet 4 changes. When it is determined that the usage state of the outdoor outlet 4 has changed, the process proceeds to the next step S203.

  In step S203, the control unit 21 determines whether the usage state of the outdoor outlet 4 has changed from “unused” to “used”, or has changed from “used” to “unused”. When it changes to “use”, the process proceeds to step S204, and when it changes from “use” to “unused”, the process proceeds to step S206.

  In step S204, the voice output unit 15 informs the resident of the residence that the use of the outdoor outlet 4 has started, for example, a voice message such as “Outdoor outlet is in use. A message is output from the speaker 17. Thereafter, in step S205, the flag indicating that the voice message for starting use of the outdoor outlet 4 as described above is output is turned on, and the process returns.

  On the other hand, in step S206, it is confirmed whether or not the flag indicating that the voice message for starting the use of the outdoor outlet 4 has been output is turned on, and that the flag is turned on, that is, the use of the outdoor outlet 4 is started. In step S207, a voice message notifying the resident of the dwelling that the use of the outdoor outlet 4 has ended, for example, “The plug has been removed from the outdoor outlet. A voice message such as “Please check” is output from the speaker 17. And the flag which shows having output the voice message of the start of use of the outdoor outlet 4 is switched off, and it returns. If flag-on cannot be confirmed in step S206, it is assumed that a malfunction has occurred for some reason, and the process returns without outputting a voice message.

  In the above example, the intercom base unit 1 inputs signals from the plug-in detector 6 at predetermined intervals, monitors changes in the signal from the plug-in detector 6, and uses the outdoor outlet 4. However, only when the on / off state of the micro switch 6a of the plug-in detector 6 changes, the switch-on / off signal is output from the plug-in detector 6 to the intercom master unit 1. In this way, the intercom base unit 1 may determine that the usage state of the outdoor outlet 4 has changed when this switch on / off signal is input.

  As described above in detail with specific examples, the intercom system according to the present embodiment uses the outdoor outlet 4 based on the signal from the plug insertion detector 6 that detects plugging / unplugging with respect to the outdoor outlet 4. When it is determined that the state has changed, the intercom base unit 1 outputs a voice message for notifying the residents of the residence of a change in the usage state of the outdoor outlet 4. Therefore, according to this intercom system, similar to the intercom system of the first embodiment, it is possible to make the inhabitants accurately recognize that the usage state of the outdoor outlet 4 has changed. By listening to a voice message indicating that the usage state of the outlet 4 has changed from “unused” to “used”, it is recognized that the electric power is being stolen from the outdoor outlet 4, and the outdoor outlet 4 By listening to a voice message indicating that the usage status of the device has changed from “Used” to “Not Used”, it is recognized that the plug inserted into the outdoor outlet 4 has been removed due to mischief, etc. Necessary measures such as patrol around the installation position can be achieved.

  The first embodiment and the second embodiment described above exemplify an application example of the present invention, and the technical scope of the present invention is limited to the contents described in each of the above embodiments. Is not intended. In other words, the technical scope of the present invention is not limited to the specific technical matters disclosed by the description of each of the above embodiments, but includes various modifications, changes, alternative techniques and the like that can be easily derived from this disclosure.

It is a system configuration figure showing an intercom system of a 1st embodiment. It is a block diagram which shows the functional structure of an intercom main unit. It is a block diagram which shows the functional structure of a door phone cordless handset. In the intercom system of 1st Embodiment, it is a flowchart which shows the specific example of the process performed by the intercom main unit in order to implement | achieve the function which alert | reports the change of the usage condition of an outdoor outlet. It is a system block diagram which shows the intercom system of 2nd Embodiment. It is a figure which shows the specific example of the plug insertion detector for monitoring the use condition of an outdoor outlet. In the intercom system of 2nd Embodiment, it is a flowchart which shows the specific example of the process performed by the interphone main unit in order to implement | achieve the function which alert | reports the change of the usage condition of an outdoor outlet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intercom main unit 2 Door phone subunit 4 Outdoor outlet 5 Current detector 6 Plug insertion detector 12 Signal input part 15 Audio | voice output part 21 Control part

Claims (5)

In an intercom system in which an interphone master unit installed indoors and a doorphone slave unit installed at the entrance of the residence are connected so as to be able to talk,
Provide an outdoor outlet monitoring means for monitoring the usage state of the outdoor outlet of the residence, connect the outdoor outlet monitoring means to the interphone main unit,
An interphone system, wherein the interphone base unit notifies a change in the usage state of the outdoor outlet when the usage state of the outdoor outlet changes. The intercom base unit is
Signal input means for inputting a signal output from the outdoor outlet monitoring means;
Voice output means for outputting a change in the usage status of the outdoor outlet as a voice when it is determined that the usage status of the outdoor outlet has changed based on the signal input to the signal input means; The intercom system according to claim 1.   The intercom system according to claim 1 or 2, wherein the outdoor outlet monitoring means monitors a use state of the outdoor outlet by detecting a current flowing into the outdoor outlet.   The intercom system according to claim 1 or 2, wherein the detecting means monitors the use state of the outdoor outlet by detecting plugging / unplugging with respect to the outdoor outlet. In an interphone master unit that is installed indoors in a residence and connected to a door phone slave unit installed at the front door of the residence,
A signal input means for inputting a signal output from the outdoor outlet monitoring means for monitoring the usage state of the outdoor outlet in the house;
Voice output means for outputting a change in the usage status of the outdoor outlet as a voice when it is determined that the usage status of the outdoor outlet has changed based on the signal input to the signal input means; Interphone base unit to do.

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