JP2015080191A - Intercom master unit and intercom system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intercom system capable of properly operating even when the intercom master unit is connected to plural power sources each having a different voltage.SOLUTION: The intercom system includes: a voltage measurement section 32 that, when a supply voltage is applied to an intercom master unit 20, measures a voltage value of a supply voltage; and a master unit control section 28 that determines an operation mode corresponding to the voltage value measured by the voltage measurement section 32 referring to a corresponding mode table which stores plural supply voltage rages and operation modes in association with each other, and controls the intercom master unit 20 with the determined operation mode.

Description

  The present invention relates to an interphone master unit and an interphone system.

  Conventionally, interphone master units used in apartments are installed in each unit, and can be used to communicate with shared equipment (lobby intercom) installed in the common entrance (lobby) of the apartment (For example, refer to Patent Document 1).

JP 2005-117470 A

By the way, it can be considered that the interphone master unit is operated by supplying power from a power source provided in the shared device.
However, for example, there may be a case where the power supply cannot be provided only by the power source provided in the shared unit device due to an increase in the number of interphone master units connected to the shared unit device. At that time, it is necessary to supply power to each parent device from another power source other than the power source provided in the shared device.

  At this time, when the power supply voltage of the power supply provided in the shared unit device and the power supply voltage of the separate power supply are different, the voltage applied to the parent device is different, so that there is a possibility that the interphone parent device cannot operate properly. .

  The present invention has been made to solve the above problems, and an object of the present invention is to provide an interphone master unit and an interphone system that can operate properly even when a plurality of power supplies having different power supply voltages are connected. There is.

  In order to solve the above problem, the interphone master is an interphone master corresponding to a plurality of different supply voltages, and when the supply voltage is applied, a voltage measurement unit that measures a voltage value of the supply voltage; With reference to a correspondence mode table in which a plurality of supply voltage ranges and operation modes are stored in association with each other, a corresponding operation mode is determined from the voltage value measured by the voltage measurement unit, and the determined operation mode is And a control unit to be operated.

  In the above configuration, either the door phone without an imaging unit or the door phone with an imaging unit can be connected, and the corresponding mode table is connected to the door phone without an imaging unit for each of a plurality of different supplied voltages. It is preferable that a supply voltage range in a state where the image pickup unit is attached and a plurality of supply voltage ranges in a state where a voltage drop occurs due to the connection of the door phone with the imaging unit are set.

  Moreover, in the said structure, it is preferable that a fail safe value is set within the range of the said supply voltage, and if the said control part becomes below the said fail safe value, it will make it transfer to a low power consumption mode.

  In the above configuration, the fail safe value is a construction threshold and an operation threshold lower than the construction threshold, and the control unit sets the construction threshold when voltage is applied for the first time. And it is preferable to change to the said threshold value at the time of operation by performing predetermined | prescribed operation | movement after construction completion.

Moreover, in the said structure, it is preferable to provide the alerting | reporting means which alert | reports that operation | movement is restrict | limited when shifting to the said low power consumption mode.
In the above configuration, it is preferable that the control unit limits the operation in a stepwise manner as the supply voltage decreases within a range equal to or less than the fail-safe value.

  In order to solve the above-described problem, an interphone system includes an interphone base unit having any one of the above configurations and a power source that supplies power to the interphone base unit.

  Further, in the above-mentioned configuration, the intercom base unit is installed at the common entrance of the apartment house and connected to the intercom base unit so as to be communicable. And the power source identification information received from the power source.

  Further, in the above configuration, when the interphone master unit does not receive the power source identification information, the interphone base unit notifies the other terminal of the identification information and notification that the identification information is not received. It is preferable to perform at least one of notifications that the information has not been received.

  According to the interphone base unit and the interphone system of the present invention, even when a plurality of power supplies having different power supply voltages are connected, it can operate appropriately.

It is a schematic block diagram of the intercom system in 1st Embodiment. It is a block diagram of the intercom system in the same as the above. It is explanatory drawing for demonstrating a corresponding | compatible mode table and a threshold value. It is explanatory drawing for demonstrating a restriction | limiting mode. It is a flowchart for demonstrating an example of the test at the time of construction. It is a flowchart for demonstrating the fail safe operation | movement at the time of system operation. It is a flowchart for demonstrating the fail safe operation | movement at the time of system operation. It is a flowchart for demonstrating the fail safe operation | movement at the time of system operation. It is a block diagram which shows schematic structure of the intercom system in 2nd Embodiment. It is a block diagram of the intercom master unit which is supplied with electric power from the shared power supply of the intercom system and the lobby power supply of the shared power device in the same as above. It is a block diagram of the separate power supply which supplies electric power to the interphone main unit and interphone main unit of the interphone system in the same as above. It is a block diagram of the intercom main unit supplied with electric power from the commercial power source of the intercom system in the same as above.

(First embodiment)
Hereinafter, a first embodiment of an intercom system will be described with reference to the drawings.
As shown in FIG. 1, the intercom system according to the present embodiment includes a common unit device (lobby interphone) 10 installed in a common entrance (lobby) of an apartment house, and a plurality of units installed in each dwelling unit of the apartment house. Interphone base unit 20 is provided. Furthermore, the intercom system includes a dwelling unit (door phone) 40 installed at the exterior entrance (outdoor) of each dwelling unit.

  As shown in FIG. 1, the shared unit device 10 is connected to the trunk line TL. The trunk line TL is provided with a plurality of branching devices B, and the intercom master unit 20 is connected to the branching lines (dwelling unit lines) BL branched by the branching devices B. Furthermore, the intercom base unit 20 and the dwelling unit 40 are connected by a handset connection line CL.

[Common equipment (lobby intercom)]
As shown in FIGS. 1 and 2, the shared device 10 includes an imaging unit 11, a voice input unit 12, a voice output unit 13, a dwelling unit number input unit 14, a dwelling unit number display unit 15, and a call button 16. And have.

  The imaging unit 11 images a visitor's face and the like, and includes an imaging element such as a CCD image sensor or a CMOS image sensor, a lens, and a video signal processing circuit. The video signal processing circuit generates a digital video signal such as a YUV format from the output signal of the image sensor.

The voice input unit 12 is configured by a microphone or the like, for example, and can input a visitor's voice.
The audio output unit 13 is configured by a speaker or the like, for example, and can output a voice from the interphone master unit 20 described later.

  The dwelling unit number input unit 14 is configured with, for example, a numeric keypad or a touch panel, and a visitor can input the dwelling unit number of the visited dwelling unit. The call button 16 is a button for calling the dwelling unit number input to the dwelling unit number input unit 14.

The dwelling unit number display unit 15 displays the dwelling unit number input to the dwelling unit number input unit 14 and notifies the visitor.
As shown in FIG. 2, the shared device 10 includes a communication unit 17 that communicates audio and video through the trunk line TL and the branch line BL, and a lobby control unit 18 that performs various controls.

  The lobby control unit 18 of the shared unit device 10 stores dwelling unit information that is a relationship between the address assigned to the interphone master unit 20 of each dwelling unit and the dwelling unit number of the dwelling unit. And the lobby control part 18 collates the dwelling unit number input in the dwelling unit number input part 14 of the shared part apparatus 10 with dwelling unit information, and converts it into an address. Further, the lobby control unit 18 stores the address in the destination address field and stores the call command for notifying the call from the shared unit device 10 in the data field, and the video information or audio input of the imaging unit 11. The packet storing the voice information of the unit 12 in the data field is sent to the trunk line TL via the communication unit 17.

  As shown in FIG. 2, the common unit device 10 includes a lobby power source 19 for supplying power to the common unit device 10 and each interphone master unit 20. The lobby power supply 19 is connected to a commercial power supply and operates as a 48V DC power supply, for example.

[Dwelling unit (door phone unit)]
As shown in FIG. 2, the dwelling unit 40 includes a dwelling unit 40 a having an imaging unit 41 and a dwelling unit 40 b having no imaging unit, and any of the dwelling units 40 a and 40 b is also imaged. Except for the presence or absence of the portion 41, the general configuration is the same. For this reason, the dwelling unit 40a which has an imaging part mainly is demonstrated.

As shown in FIG. 2, the dwelling unit 40 a includes an imaging unit 41, a voice input unit 42, a voice output unit 43, a call button 44, a communication unit 45, and a slave unit control unit 46.
The imaging unit 41 images a visitor's face and the like, and includes an imaging element such as a CCD image sensor or a CMOS image sensor, a lens, a video signal processing circuit, and the like. The video signal processing circuit generates a digital video signal such as a YUV format from the output signal of the image sensor.

  The voice input unit 42 is constituted by a microphone or the like, for example, and can input a visitor's voice. The audio output unit 43 is configured by a speaker or the like, for example, and can output a voice from the interphone master unit 20 described later. The call button 44 is a button for performing a call to the intercom master unit 20 connected by the slave unit connection line CL.

The subunit | mobile_unit control part 46 can exchange image information, audio | voice information, etc. with the intercom main unit 20 connected by the subunit | mobile_unit connection line CL via the communication part 45 in the dwelling unit subunit 40a.
[Intercom base unit]
As shown in FIGS. 1 and 2, the interphone master unit 20 includes a video display unit 21, an audio input unit 22, an audio output unit 23, a volume switch button 24, a brightness switch button 25, and a call button 26. And an unlock button 27, a parent device control unit 28, and communication units 29 and 30.

  The video display unit 21 is, for example, a liquid crystal monitor, and displays video information captured by the imaging unit 11 of the shared unit device 10 or video information captured by the imaging unit 41 of the dwelling unit 40. Each video information is sent as a packet to each line TL, BL, CL, and the information is appropriately processed by the communication units 29, 30 and the parent device control unit 28 and displayed on the video display unit 21. .

The voice input unit 22 is constituted by a microphone or the like, for example, and can input a resident's voice.
The audio output unit 23 is configured by, for example, a speaker or the like, and can output a voice from the shared unit device 10 or the dwelling unit 40 side.

  The volume switching button 24 is a volume of a visitor's voice input to the voice input unit 12 of the common unit device 10 or the voice input unit 42 of the dwelling unit 40, the call button 16 of the common unit device 10, or the dwelling unit 40. The volume of the ringing tone when the call button 44 is pressed is adjusted.

The brightness switching button 25 is for adjusting the luminance of the video display unit 21.
The call button 26 is used when talking to a visitor in front of the shared device 10 or a visitor in front of the dwelling unit 40.

The unlock button 27 is for unlocking (opening / closing) the common entrance of the apartment house (not shown).
The base unit control unit 28 exchanges video information, audio information, and the like with the common unit device 10 or the dwelling unit 40 connected by the lines TL, BL, and CL via the communication units 29 and 30 in the interphone base unit 20. It is possible. In addition, when the call button 26 is operated by a resident (operator of the interphone master 20), the master control unit 28 displays a video captured by the imaging unit 41 on the video display unit 21. Have

  As shown in FIG. 2, the intercom base unit 20 includes a power supply unit 31 connected to the lobby power supply 19 or the separate power supply 50 by a power supply line PSL. The power supply unit 31 is connected to the lobby power supply 19 or the separate power supply 50 and supplies power to each unit in the interphone master unit 20. Incidentally, the separate power supply 50 is connected to a commercial power supply and operates as, for example, a 30V DC power supply.

  The power supply unit 31 is connected to a voltage measurement unit 32 that measures a supply voltage supplied to the interphone master unit 20. The voltage measuring unit 32 is electrically connected to the parent device control unit 28 and outputs the measurement result of the supply voltage to the parent device control unit 28.

  Here, a correspondence mode table in which a plurality of supply voltage ranges and operation modes are stored in association with each other is stored in a memory (not shown). Then, the base unit control unit 28 determines which supply voltage range the voltage value measured by the voltage measurement unit 32, acquires the corresponding operation mode with reference to the corresponding mode table, and supplies The intercom base unit 20 is operated in an operation mode corresponding to the voltage.

  Here, the correspondence mode table used in the intercom base unit 20 of the present embodiment will be described. In the corresponding mode table, the operation mode is changed depending on the presence or absence of the imaging unit of the dwelling unit 40 according to the difference in the supply voltage used in the intercom base unit 20. This correspondence mode table is stored in a storage unit (not shown) and is appropriately referred to by the parent device control unit 28.

(Condition A1)
This is the case of power supply using the lobby power supply. In this case, the operation mode is the same whether it is a dwelling unit with an imaging unit or a dwelling unit without an imaging unit.

(Condition A2)
This is the case of power supply with a separate power source + unit of dwelling unit with image pickup unit.
(Condition A3)
This is a case of power supply with a separate power source + unit-less dwelling unit without image pickup unit.

  Furthermore, in the intercom base unit 20 of the present embodiment, two types of thresholds are set depending on whether the test is a construction test or the operation. That is, in the present embodiment, there are six patterns of conditions shown in FIG. Note that the threshold value for the construction test (construction threshold value) is set to be generally higher than the threshold value for operation (operational threshold value). Further, the construction threshold is calculated from the power that can be consumed by all terminals in the standby state with the maximum wiring length by connecting the interphone master unit 20 in the interphone system with the maximum number of connected units. What is shown is an example and varies depending on the specifications. The operating threshold is calculated from the power that can be consumed when the interphone system is in the most operating state, which is assumed within the specification range. The following values are examples and vary depending on the specifications. To do.

(Condition A1-1)
This is an operation mode in which the construction threshold is taken into consideration in the condition A1, and 40 V is set as the lower limit value of the construction threshold.

(Condition A1-2)
This is an operation mode in which the operating threshold value is considered in the condition A1, and 35 V is set as the lower limit value (fail safe value) of the operating threshold value.

(Condition A2-1)
This is an operation mode in which the construction threshold is considered in the condition A2, 33V is set as the upper limit value of the construction threshold, and 27V is set as the lower limit value of the construction threshold.

(Condition A2-2)
This is an operation mode in which the operating threshold value is considered in the condition A2, and 24V is set as the lower limit value (fail safe value) of the operating threshold value.

(Condition A3-1)
The condition A3 is an operation mode in which the construction threshold is taken into account, 33V is set as the upper limit of the construction threshold, and 25V is set as the lower limit of the construction threshold.

(Condition A3-2)
This is an operation mode in which the operation threshold is taken into consideration in the condition A3, and 18 V is set as the lower limit value (fail safe value) of the operation threshold.

  Further, as shown in FIG. 1, a fire alarm 60 is electrically connected to the intercom base unit 20 of the present embodiment. The fire alarm device 60 is installed in a dwelling unit and determines the presence or absence of a fire by detecting smoke or heat. The fire alarm device 60 is provided with a sound output unit that emits sound, and when a fire breaks out, the sound is informed to that effect. Further, when the fire alarm device 60 determines that a fire has occurred, the fire alarm device 60 outputs a signal to that effect to the interphone master unit 20, and a sound is also output from the audio output unit 23 of the interphone master unit 20 to notify that a fire has occurred. It is possible.

Next, a construction test from the construction of the intercom system configured as described above to the apartment house to the actual operation will be described.
As shown in FIG. 5, when the intercom system is installed in the apartment house (step S10), energization of the intercom system is started and the entire intercom system is operated (step S11). At this time, various initial processes are performed in the shared device 10 of the interphone system, the interphone master unit 20, and the like. Moreover, when a voltage is first applied to each interphone master 20 of the interphone system, the master control unit 28 sets (selects) a construction threshold, and sets the construction threshold (condition A1-1 in the corresponding mode table). A2-1 and A3-1) are used for appropriate determination.

  Next, the base unit control unit 28 determines, for example, whether the dwelling unit 40 connected to the intercom base unit 20 has an imaging unit (step S12). As an example, for example, the intercom base unit 20 includes an enable switch, and it is determined whether the dwelling unit 40 connected in the state of the switch has an imaging unit.

(Test at the time of construction at the time of connection of the dwelling unit 40a with an imaging unit)
For example, when the dwelling unit 40 connected to the interphone base unit 20 has an imaging unit (step S12: Yes), the base unit control unit 28 measures the measured voltage value (supply voltage value) measured by the voltage measuring unit 32. ) Is 40V or higher (step S20).

  When the measured voltage value is 40 V or more (step S20: Yes), the base unit control unit 28 determines that the construction is finished and starts operation in the operation mode of the condition A1-2 in which the operation threshold is set ( Step S40).

On the other hand, when the measured voltage value is less than 40V (step S20: No), the parent device control unit 28 determines whether or not the measured voltage value is 33V or more (step S21).
When the measured voltage value is 33 V or more (step S21: Yes), the parent device control unit 28 determines that the measured voltage value is equal to or higher than the supply voltage of the separate power supply 50 and is the supply voltage of the lobby power supply 19. However, since the supply voltage of the lobby power supply 19 has not reached 40V, which is the construction threshold value (lower limit) of the condition A1-1, it is determined that the construction is abnormal (step S50). At this time, the base unit control unit 28 may output a warning sound or a message sound informing that the construction is abnormal from the voice output unit 13 of the shared unit device 10, for example. Thereafter, the power supply of the entire intercom system is turned off manually or automatically (step S51). Subsequently, it is reconstructed by the installer (step S52). Thereafter, a series of flow from step S11 is repeatedly performed until the operation becomes possible.

On the other hand, when the measured voltage value is less than 33V (step S21: No), the parent device control unit 28 determines whether or not the measured voltage value is 27V or more (step S22).
When the measured voltage value is 27 V or more (step S22: Yes), the main unit control unit 28 determines that the construction is finished and starts operation in the operation mode of the condition A2-2 in which the operation threshold is set ( Step S70).

  On the other hand, when the measured voltage value is less than 27 V (step S22: No), the parent device control unit 28 determines that the supply voltage of the separate power supply 50 is present. However, since the supply voltage of the separate power supply 50 has not reached 27 V, which is the construction threshold (lower limit) of the condition A2-1, it is determined that the construction is abnormal (step S60). At this time, the base unit control unit 28 may output a warning sound or a message sound informing that the construction is abnormal from the voice output unit 13 of the shared unit device 10, for example. Thereafter, the power supply of the entire intercom system is turned off manually or automatically (step S61). Next, it is reconstructed by the installer (step S62). Thereafter, a series of flow from step S11 is repeatedly performed until the operation becomes possible.

(Test at the time of construction when the dwelling unit 40b without the imaging unit is connected)
Further, when the dwelling unit 40 connected to the intercom base unit 20 has no imaging unit (step S30: No), the base unit control unit 28 measures the measured voltage value (supply voltage value) measured by the voltage measuring unit 32. ) Is 40V or higher (step S30).

When the measured voltage value is 40 V or more (step S30: Yes), the parent device control unit 28 starts operation in the operation mode of the condition A1-2 (step S40).
On the other hand, when the measured voltage value is less than 40V (step S30: No), the parent device control unit 28 determines whether or not the measured voltage value is 33V or more (step S31).

  When the measured voltage value is 33 V or higher (step S31: Yes), the parent device control unit 28 determines that the measured voltage value is equal to or higher than the supply voltage of the separate power supply 50 and is the supply voltage of the lobby power supply 19. However, since the supply voltage of the lobby power supply 19 has not reached 40V, which is the construction threshold value (lower limit) of the condition A1-1, it is determined that the construction is abnormal (step S50). At this time, the base unit control unit 28 may output a warning sound or a message sound informing that the construction is abnormal from the voice output unit 13 of the shared unit device 10, for example. Thereafter, the power supply of the entire intercom system is turned off manually or automatically (step S51). Subsequently, it is reconstructed by the installer (step S52). Thereafter, a series of flow from step S11 is repeatedly performed until the operation becomes possible.

On the other hand, when the measured voltage value is less than 33V (step S31: No), the parent device control unit 28 determines whether or not the measured voltage value is 25V or more (step S32).
When the measured voltage value is 25 V or more (step S22: Yes), the base unit control unit 28 determines that the construction is finished and starts operation in the operation mode of the condition A3-2 in which the operation threshold is set ( Step S80).

  On the other hand, when the measured voltage value is less than 25 V (step S32: No), the parent device control unit 28 determines that the supply voltage of the separate power supply 50 is present. However, since the supply voltage of the separate power supply 50 has not reached 25 V, which is the threshold (lower limit value) during construction of the condition A3-1, it is determined that the construction is abnormal (step S60). At this time, the base unit control unit 28 may output a warning sound or a message sound informing that the construction is abnormal from the voice output unit 13 of the shared unit device 10, for example. Thereafter, the power supply of the entire intercom system is turned off manually or automatically (step S61). Next, it is reconstructed by the installer (step S62). Thereafter, a series of flow from step S11 is repeatedly performed until the operation becomes possible.

  As described above, even if the power supplies 19 and 50 that can be supplied with different supply voltages are used, it is possible to determine whether or not the construction is out of the specification range of each of the power supplies 19 and 50. , 50 can be prevented from exceeding the power supply capacity.

  Next, an example of the fail-safe operation when the intercom system construction test is finished and the operation is actually started will be described. Incidentally, in this embodiment, as shown in FIG. 4, three types of fail-safe operations of the restriction modes 1 to 3 are set depending on the measurement voltage, and the restriction mode 1, the restriction mode 2, and the restriction mode are set as the measurement voltage value decreases. The limit of operation is expanded in the order of 3.

Here, the restriction modes 1 to 3 will be described with reference to FIG. These are merely examples, and may be changed as appropriate according to specifications and the like.
[Restricted mode 1]
Playback of video and audio recorded when a call is made between the interphone master 20 and the shared device 10 or between the interphone master 20 and the dwelling unit 40 is prohibited. In addition, the video or audio recorded when the intercom master 20 of a specific dwelling unit is called by the shared unit 10 or the video or audio recorded when the intercom master 20 is called by the dwelling unit 40 Audio playback is prohibited.

Furthermore, the monitoring function is prohibited.
Further, changes in user settings such as brightness adjustment of the video display unit 21 by the brightness switching button 25 and volume adjustment of the ringing sound by the volume switching button 24 are prohibited.

[Restricted mode 2]
In addition to the restriction mode 1, the brightness of the video display unit 21 is changed to the lowest state within the range where the luminance is lit. Alternatively, the video display unit 21 is turned off.

[Restricted mode 3]
In addition to the restriction mode 2, the state is changed to the smallest state within the range of the sound output by the audio output unit 23. Alternatively, power supply (signal transmission) to the voice output unit 23 and the voice input unit 22 is prohibited, and a call is prohibited.

  When the operation under the condition A1-2 is started in the determination of the construction test, the master unit control unit 28 operates the interphone system while periodically monitoring the measured voltage value measured by the voltage measuring unit 32. It has been continued.

  As shown in FIG. 6, the base unit control unit 28 selects a fail-safe operation (low power consumption mode) in which the operation is limited or a normal operation without an operation limitation depending on the value of the measured voltage value (step S41). .

  When the measured voltage value is higher than 35 V, which is the fail safe value of the condition A1-2, the parent device control unit 28 operates the interphone parent device 20 in a normal operation without operation restriction (step S42).

  When the measured voltage value is 35 V or less, which is the fail safe value of condition A1-2, base unit control unit 28 operates interphone base unit 20 in a fail safe operation (low power consumption mode) in which the operation is limited. .

At this time, for example, when the measured voltage value is 35V or less and higher than 33V, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 1 (step S43).
For example, when the measured voltage value is 33V or less and higher than 30V, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 2 in which the operation restriction number is larger than that in the restriction mode 1 (step S44). .

  For example, when the measured voltage value is 30 V or less, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 3 in which the operation restriction number is larger than that in the restriction mode 2 (step S45).

  When the operation under the condition A2-2 is started in the judgment of the construction test, the master unit control unit 28 operates the interphone system while periodically monitoring the measured voltage value measured by the voltage measuring unit 32. It has been continued.

  As shown in FIG. 7, the base unit control unit 28 selects a fail-safe operation (low power consumption mode) in which operation is restricted or a normal operation without operation restriction depending on the value of the measured voltage value (step S71). .

  When the measured voltage value is higher than 24V, which is the fail-safe value of Condition A2-2, the base unit control unit 28 operates the interphone base unit 20 in a normal operation without operation restriction (step S72).

  When the measured voltage value is equal to or lower than 24 V, which is the fail-safe value of condition A2-2, base unit control unit 28 operates interphone base unit 20 in a fail-safe operation (low power consumption mode) in which the operation is limited. .

At this time, for example, when the measured voltage value is 24V or less and higher than 22V, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 1 (step S73).
For example, when the measured voltage value is 22V or less and higher than 19V, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 2 in which the operation restriction number is larger than that in the restriction mode 1 (step S74). .

  For example, when the measured voltage value is 19 V or less, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 3 in which the operation restriction number is larger than that in the restriction mode 2 (step S75).

  Further, when the operation under the condition A3-2 is started in the judgment of the construction test, the master unit control unit 28 monitors the measurement voltage value measured by the voltage measurement unit 32 and periodically monitors the interphone system. Operation has been continued.

  As shown in FIG. 8, the base unit control unit 28 selects a fail-safe operation (low power consumption mode) in which the operation is limited or a normal operation without an operation limitation depending on the value of the measured voltage value (step S81). .

  When the measured voltage value is higher than 18V, which is the fail-safe value of Condition A3-2, base unit control unit 28 operates intercom base unit 20 in a normal operation with no operation restriction (step S82).

  When the measured voltage value is equal to or lower than 18 V, which is the fail-safe value of Condition A3-2, base unit control unit 28 operates interphone base unit 20 in a fail-safe operation (low power consumption mode) in which the operation is limited. .

At this time, for example, when the measured voltage value is 18V or less and higher than 16V, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 1 (step S73).
For example, when the measured voltage value is 16 V or less and higher than 13 V, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 2 in which the operation restriction number is larger than that in the restriction mode 1 (step S84). .

  For example, when the measured voltage value is 13 V or less, the parent device control unit 28 operates the interphone parent device 20 in the restriction mode 3 having a larger operation restriction number than the restriction mode 2 (step S85).

  As described above, even when a plurality of power supplies having different voltages are connected, a fail-safe operation is possible. Furthermore, fail safe operation is possible by setting a threshold value for each of the dwelling unit 40a and the dwelling unit 40b having no imaging unit.

Next, the effect of this embodiment will be described.
(1) The base unit control unit 28 determines an operation mode corresponding to a plurality of different supply voltages, and the interphone base unit 20 is operated in the determined operation mode (condition). For this reason, the intercom base unit 20 can be appropriately operated within a range that does not exceed the power supply capability of the power sources 19 and 50.

  (2) In the corresponding mode table, for each of a plurality of different supplied voltages, the supply voltage range in a state where the dwelling unit 40b without the imaging unit is connected and the dwelling unit 40a with the imaging unit are connected. A plurality of supply voltage ranges in a state where the voltage drops are set. For this reason, it can be appropriately operated depending on the presence or absence of the imaging unit 41.

  (3) When the base unit control unit 28 becomes the fail safe value or less, the base unit control unit 28 shifts to the low power consumption mode that restricts the function of the intercom base unit 20, so that the power supply capacity of each of the power sources 19 and 50 is appropriately exceeded. The intercom base unit 20 can be operated.

  (4) As the fail-safe value, a construction threshold value and an operation threshold value lower than the construction threshold value are set. For this reason, the base unit control unit 28 appropriately changes the threshold value according to the test using the voltage required at the time of construction and the voltage required by the load on the system within the specification range assumed at the time of operation, and appropriately controls the interphone base unit 20. Can be operated.

  (5) Since the audio output unit 23 is provided to notify that the operation of the interphone master unit 20 is restricted when the operation is shifted to the fail-safe operation (low power consumption mode), the resident or the contractor is notified. Can do.

  (6) The operation of the interphone master unit 20 is limited in a stepwise manner as the supply voltage decreases within the range of the fail safe value or less by the master unit control unit 28. For this reason, the required power in the intercom base unit 20 can be suppressed while maintaining the minimum necessary functions as the intercom base unit 20.

(Second Embodiment)
Next, a second embodiment of the intercom system will be described with reference to the drawings. In the following description, the same numbers are assigned to the same configurations as those in the first embodiment, and some or all of the descriptions are omitted.

  As shown in FIG. 9, the intercom system of the present embodiment is similar to the first embodiment in that the common unit device (lobby interphone) 10 installed in the common entrance (lobby) of the apartment house and each dwelling unit of the apartment house And a plurality of intercom master units 20 installed therein. Furthermore, the intercom system includes a dwelling unit (door phone) 40 installed at the exterior entrance (outdoor) of each dwelling unit.

  As shown in FIG. 10, the shared device 10 is similar to the shared device of the first embodiment in that the imaging unit 11, the voice input unit 12, the voice output unit 13, the dwelling unit number input unit 14, and the dwelling unit. A number display unit 15 and a call button 16 are provided. The shared device 10 includes a communication unit 17 that communicates voice and video through the trunk line TL and the branch line BL, and a lobby control unit 18 that performs various controls.

The shared unit 10 includes a lobby power source 19 that is connected to a commercial power source and supplies power to the shared unit 10 and each interphone master unit 20.
The lobby power supply 19 includes a power supply unit 51, a mixing / separating unit 52, and a communication unit 53.

  The power supply unit 51 is connected to a commercial power supply and supplies power to the shared unit device 10 and each interphone master unit 20. The power supply unit 51 is connected to a mixing / separating unit 52 that mixes / separates power and communication signals such as identification information of the lobby power supply 19.

  The mixing / separating unit 52 is connected to the communication unit 53. For example, the communication unit 53 transmits the identification information of the lobby power supply 19 to the interphone master 20 side via the mixing / separating unit 52. At this time, the mixing / separating unit 52 superimposes the power and the identification information of the lobby power supply 19 and transmits the superimposed information to the interphone master 20 side.

  Similar to the first embodiment, the interphone master unit 20 includes a video display unit 21, an audio input unit 22, an audio output unit 23, a volume switching button 24, a brightness switching button 25, a call button 26, An unlock button 27, a parent device control unit 28, and communication units 29 and 30 are provided.

  The intercom base unit 20 includes a mixing / separating unit 61 connected to the power supply line PSL, a power supply unit 62, and a communication unit 63. The mixing / separating unit 61 separates the power and the identification information of the lobby power supply 19, outputs the power to the power supply unit 62, and outputs the identification information of the lobby power supply 19 to the communication unit 63.

  The power supply unit 62 supplies power separated by the mixing / separating unit 61 to each unit in the interphone master unit 20. Further, the power supply unit 62 measures a supply voltage supplied to the intercom master unit 20. The voltage measurement unit 32 is electrically connected to the parent device control unit 28 as in the first embodiment, and outputs the measurement result of the supply voltage to the parent device control unit 28.

The communication unit 63 outputs the identification information of the lobby power supply 19 separated by the mixing / separating unit 61 to the parent device control unit 28.
Base unit control unit 28 records the identification information of lobby power supply 19 in a memory (not shown). Base unit control unit 28 transmits identification information of intercom base unit 20 to shared unit device 10 via communication unit 29, branch line BL, branch unit B, and trunk line TL. In the shared unit 10, when the communication unit 17 receives the identification information of the power supply unit 62 of the interphone base unit 20, the lobby control unit 18 counts the number and recognizes the number of connections of the interphone base unit 20. It can be done.

The interphone base unit 20 corresponds to power sources having different voltages, and the following pattern is considered as an example of a connection pattern between the power source and the interphone base unit 20.
(Connection pattern P1)
As shown in FIG. 12, the interphone master unit 20 is connected to a commercial power source provided in advance in each dwelling unit, for example, and is directly supplied with power from the commercial power source. In this case, a configuration in which the mixing / separating unit 61 and the communication unit 63 are omitted may be employed, particularly when confirmation of the connection state with the shared unit device 10 is unnecessary.

(Connection pattern P2)
As shown in FIG. 10, the interphone master 20 is connected to, for example, a lobby power supply 19 and is supplied with power from the lobby power supply 19.

(Connection pattern P3)
As shown in FIG. 11, the interphone master 20 is connected to, for example, a separate power supply 50 and is supplied with power from the separate power supply 50.

Next, the operation of the intercom system will be described.
As shown in FIG. 5, when the intercom system is installed in the apartment house (step S10), energization of the intercom system is started and the entire intercom system is operated (step S11). At this time, various initial processes are performed in the shared device 10 of the interphone system, the interphone master unit 20, and the like. Moreover, when a voltage is first applied to each interphone master 20 of the interphone system, the master control unit 28 sets (selects) a construction threshold, and sets the construction threshold (condition A1-1 in the corresponding mode table). A2-1 and A3-1) are used for appropriate determination.

  In addition, when the interphone master unit 20 that performs power supply by the lobby power supply 19 is connected to the shared device 10, the mixing / separation unit 52 identifies the lobby power supply 19 from the communication unit 53 together with the power from the power supply unit 51. Output information.

  On the other hand, when the identification information of the lobby power supply 19 is input together with the power supply, the interphone master unit 20 is separated into the power and the identification information of the lobby power supply 19 by the mixing / separating unit 52, and the power is output to the power supply unit 62. Identification information of the lobby power supply 19 is output to the communication unit 63. Then, the power supply unit 62 supplies the power separated by the mixing / separating unit 61 to each unit in the interphone master unit 20. In addition, the communication unit 63 outputs the identification information of the lobby power supply 19 separated by the mixing / separating unit 61 to the parent device control unit 28.

  The base unit control unit 28 stores identification information of the lobby power supply 19. Next, base unit control unit 28 transmits the identification information of intercom base unit 20 itself to shared unit device 10 together with the stored identification information of lobby power supply 19. At this time, the base unit control unit 28 transmits the identification information of the lobby power supply 19 and the identification information of the interphone base unit 20 to the shared unit 10 via the communication unit 29, the branch line BL, the branch B, and the trunk line TL. Send.

  In the shared device 10, when the identification information of the lobby power supply 19 and the identification information of the interphone master 20 are received, the lobby controller 18 counts the interphone master 20 connected for each identification information of the lobby power supply 19. Thereby, it is possible to recognize how many interphone master units 20 are connected to the lobby power supply 19. The lobby control unit 18 displays the number of connected units on, for example, the dwelling unit number display unit 15 of the shared unit device 10 during a construction test, for example.

  When the identification information of the lobby power source 19 of the interphone master unit 20 is not input, the master unit control unit 28 displays that fact on the video display unit 21 of the interphone master unit 20.

As described above, the second embodiment has the following effects in addition to the effects (1) to (6) of the first embodiment.
(7) The intercom master unit 20 transmits its own identification information and the identification information of the lobby power supply 19 received from the lobby power supply 19 to the shared unit device 10 as a shared entrance machine. As a result, it is possible to confirm whether or not the interphone master 20 is connected on the shared device 10 side. Furthermore, it is possible to check the number of connections. For example, it is possible for the shared device 10 to recognize whether or not the number of connections is equal to or greater than a specified value.

  (8) The intercom base unit 20 performs notification based on the identification information of the lobby power supply 19 received from the lobby power supply 19. Specifically, it becomes possible to notify whether or not the intercom base unit 20 is connected to the shared device 10 and power can be supplied. This makes it possible to notify the installer whether or not the interphone master unit 20 is connected to the power source 19 by notification from the interphone master unit 20.

  (9) Furthermore, when the interphone master unit 20 has not received the identification information of the lobby power supply 19, the interphone master unit 20 notifies that the identification information has not been received. Also by this, for example, by notifying that the identification information has not been received, it is possible to notify the installer that power is not being supplied from the shared device.

  (10) The communication unit 53 of the shared unit device 10 transmits the identification information of the lobby power supply 19 to the intercom base unit 20 via the power supply line PSL. Thus, since communication can be performed using the power supply line PSL as a line, it is not necessary to lay another line.

In addition, you may change each said embodiment as follows.
In each of the above embodiments, the operation of the intercom base unit 20 is limited in a stepwise manner as the supply voltage decreases within a range equal to or less than the fail safe value, but the present invention is not limited to this. You may change suitably, such as a structure which restrict | limits to the restriction | limiting mode 3 at once, if it becomes below a fail safe value.

  In each of the above embodiments, the configuration has the three modes of the restriction modes 1 to 3, but other restriction modes (fail-safe operation) may be set. For example, as shown in FIG. 4, in addition to the function restriction in the restriction mode 3, the restriction mode 4 for prohibiting the volume or the alarm itself may be set for the function of making an alarm in conjunction with the fire alarm device 60.

  In addition, for example, in the fail-safe operation, when the fire alarm 60 detects a fire, the sound output unit 23 of the interphone master unit 20 outputs sound in conjunction with it, but the sound is output in conjunction with it. The configuration may be omitted.

  -In each said embodiment, although it was set as the structure which connects the fire alarm device 60 to the intercom main unit 20, it is not restricted to this, Even if the structure which cannot connect the fire alarm device 60 to the interphone main unit 20 is connected. Good.

  In each of the above embodiments, the video display unit 21, the volume switching button 24, and the brightness switching button 25 are configured separately, but the present invention is not limited thereto. For example, adopting a configuration that uses a touch panel, displays an image such as a volume switch or brightness switch button on the touch panel, and can switch the volume and brightness by pressing the image on the panel. Also good.

In the first embodiment, the two power sources 19 and 50 are used. However, the present invention can be similarly applied to a system in which three or more power sources are assumed to be connected.
-Although the communication part 53 of the said 2nd Embodiment was set as the structure which transmits the identification information of the lobby power supply 19 with electric power via the power supply line PSL, the communication line different from the power supply line PSL is separately laid, and the communication is carried out. You may employ | adopt the structure which transmits the identification information of the lobby power supply 19 using a line.

  -Although not specifically mentioned in the second embodiment, for example, when the number of interphone master units connected to the lobby power supply 19 exceeds a predetermined number (connection limit number determined by use, etc.), the fact is notified. A configuration may be adopted. The following can be considered as an example in this case. Moreover, configurations other than the following examples may be used.

(Example X1)
For example, the number of connected interphone master units 20 counted for each piece of identification information of the lobby power supply 19 is monitored in the lobby control unit 18 of the shared unit 10. When the number of connected devices exceeds the predetermined number, the shared unit device 10 (lobby control unit 18) notifies, for example, by voice from the voice output unit 13. Of course, notification by display or the like may be used.

(Example X2)
For example, the number of connected interphone master units 20 counted for each piece of identification information of the lobby power supply 19 is monitored in the lobby control unit 18 of the shared unit 10. Then, when the number of connected devices exceeds the predetermined number, the shared unit device 10 (lobby control unit 18) outputs to the interphone base unit 20, and the video display unit 21 and the audio output unit 23 of the interphone base unit 20 Inform the effect.

(Example X3)
For example, the lobby power supply 19 itself counts the number of connected interphone master units 20. When the number of connections exceeds the predetermined number, the lobby power supply 19 notifies the connection information to at least one of the shared device 10 (lobby control unit 18) and the interphone master unit 20. Then, at least one of the shared unit device 10 (lobby control unit 18) and the interphone master device 20 that has received the connection information notifies by voice from its own voice output units 13 and 23. Of course, notification by display or the like may be used.

  With such a configuration, it is possible to make the installer recognize the fact by notifying when the number of connected interphone master units 20 exceeds a predetermined number. As a result, excess power supply capacity of the lobby power supply 19 can be suppressed. In addition, by providing a display unit such as a monitor and informing, it is possible to make the installer easily recognize, for example, text or video.

  Although not specifically mentioned in the second embodiment, for example, the operation of the interphone master unit 20 may be switched according to the number of connected interphone master units 20 connected to the lobby power supply 19. The following can be considered as an example in this case. Moreover, configurations other than the following examples may be used.

(Example Y1)
For example, the number of connected interphone master units 20 counted for each piece of identification information of the lobby power supply 19 is monitored in the lobby control unit 18 of the shared unit 10. The lobby control unit 18 outputs number information indicating the number of connected devices to the interphone master 20 via the communication unit 17. In the intercom base unit 20, numerical information is input to the base unit control unit 28 via the communication unit 29. For example, as the number of connected units included in the number information increases, the parent device control unit 28 performs the operation restriction of the interphone parent device 20 in the order of restriction mode 1, restriction mode 2, restriction mode 3, and restriction mode 4.

  Thereby, the operation restriction of the interphone master unit can be implemented according to the number of interphone master units connected to the power source. As an example, for example, when the number of interphone master units connected to the power supply is large, the interphone master unit can be operated in a low power consumption mode in which power consumption is lower than usual.

  -In the said 2nd Embodiment and said each modification, it was set as the structure alert | reported by the shared part apparatus 10 or the intercom main unit 20, but it is not restricted to this. For example, it is good also as a structure which notifies various information with respect to the other terminal connected with at least one of the shared part apparatus 10 and the intercom main | base station 20 by wire or radio | wireless. Examples of other terminals include, but are not limited to, smartphones, tablet terminals, televisions, and dedicated terminals.

-Each above-mentioned embodiment and each above-mentioned modification may be combined suitably.
Next, a technical idea that can be grasped from the above embodiment and another example will be added below.
(Appendix 1)
A power feeding unit that feeds power to one or more interphone base units installed in an apartment via a line; and a communication unit that communicates with the interphone base unit,
The power supply apparatus, wherein the communication unit transmits identification information of the power supply unit to the interphone base unit.

Accordingly, it is possible to check the power feeding device connected to the interphone master unit on the interphone master unit side.
(Appendix 2)
In the power feeding device according to attachment 1,
The power supply apparatus, wherein the communication unit transmits identification information of the power supply unit to the interphone base unit via the line serving as a power supply path to the interphone base unit.

Accordingly, since communication can be performed using a line (power line), it is not necessary to lay another line.
(Appendix 3)
An interphone comprising: the power feeding device according to appendix 1 or appendix 2, an interphone master unit fed from the power feeding device via a line, and a common entrance unit installed at the common entrance of the apartment house system.

Accordingly, it is possible to check the power feeding device connected to the interphone master unit on the interphone master unit side.
(Appendix 4)
In the intercom system described in appendix 3,
The intercom base unit transmits the identification information of itself and the identification information of the power feeding unit received from the power feeding device to the common entrance unit.

  Accordingly, it is possible to check which interphone master unit is connected to the power feeding device in the common entrance machine. For this reason, it is also possible to check the number of interphone master units connected to the power supply apparatus.

(Appendix 5)
In the intercom system according to appendix 3 or appendix 4,
The interphone base unit performs at least one of notification based on identification information of the power feeding unit received from the power feeding device and notification of identification information of the power feeding unit to another terminal. .

Thereby, the installer can know the power supply apparatus to which the interphone master unit is connected by notification from the interphone master unit or notification to another terminal.
(Appendix 6)
In the intercom system according to appendix 3 or appendix 4,
When the interphone master unit itself has not received the identification information of the power feeding unit, the intercom master unit has not received the identification information to another terminal and a notification that the identification information has not been received An intercom system that performs at least one of notifications.

Accordingly, it is possible to notify the installer whether or not the interphone master unit is connected to the power feeding device by notification from the interphone master unit or notification to another terminal.
(Appendix 7)
In the intercom system according to appendix 3 or appendix 4,
When the number of connections of the interphone master unit exceeds a predetermined number, the communication unit of the power supply device transmits connection information that informs at least one of the interphone master unit and the common entrance unit,
At least one of the interphone base unit and the shared entrance unit that has received the connection information notifies that the number of connections of the interphone base unit exceeds a predetermined number, and notifies the other terminals of the interphone base unit An intercom system that performs at least one of notifications that the number of connections exceeds a predetermined number.

  Thereby, a construction person can be made to recognize that by notifying when the number of connection of an intercom main unit exceeds a predetermined number. As a result, it is possible to suppress the power supply capacity from being exceeded.

(Appendix 8)
In the intercom system according to any one of appendix 5 to appendix 7,
The intercom base unit includes a display unit, and is configured to be able to be notified by display.

As a result, notification by display can be performed, and for example, the installer can easily recognize the characters and images. It may be configured to output from a speaker.
(Appendix 9)
In the intercom system according to any one of appendix 3 to appendix 8,
The communication unit of the power source transmits number information indicating the number of connections of the interphone master unit connected to the power source to the interphone master unit,
When the interphone base unit receives the number information, the interphone base unit switches operation according to the number information.

  Thereby, the operation restriction of the interphone master unit can be implemented according to the number of interphone master units connected to the power source. As an example, for example, when the number of interphone master units connected to the power supply is large, the interphone master unit can be operated in a low power consumption mode in which power consumption is lower than usual.

  DESCRIPTION OF SYMBOLS 10 ... Shared part apparatus (common entrance machine), 11 ... Imaging part, 19 ... Lobby power supply (power supply apparatus), 20 ... Interphone main unit, 23 ... Audio | voice output part (notification means), 28 ... Main unit control part (control part) ), 32... Voltage measurement unit, 40... Dwelling unit (door phone), 40 a... Dwelling unit with imaging unit (door phone with imaging unit), 40 b. Dwelling unit without imaging unit (door phone without imaging unit), 41. 50, power supply (power feeding device), PSL, power supply line.

Claims (9)

Interphone master unit corresponding to multiple different supply voltages,
When the supply voltage is applied, a voltage measurement unit that measures the voltage value of the supply voltage;
With reference to a correspondence mode table in which a plurality of supply voltage ranges and operation modes are stored in association with each other, a corresponding operation mode is determined from the voltage value measured by the voltage measurement unit, and the determined operation mode is A control unit to be operated;
Interphone master unit characterized by comprising. In the intercom base unit according to claim 1,
Either the door phone without the imaging unit or the door phone with the imaging unit can be connected,
In the correspondence mode table, for each of a plurality of different supplied voltages, a range of supply voltage in a state where the door phone without an imaging unit is connected, and a state where the voltage drops due to the connection of the door phone with an imaging unit And a plurality of supply voltage ranges are set. In the intercom main unit according to claim 1 or 2,
Within the range of the supply voltage, a fail safe value is set,
The interphone master unit, wherein the control unit shifts to a low power consumption mode when the value becomes equal to or less than the fail safe value. In the intercom base unit according to claim 3,
The fail-safe value is a construction threshold value and an operation threshold value lower than the construction threshold value.
The interphone main unit, wherein when the voltage is applied for the first time, the control unit sets the construction threshold value and changes to the operation threshold value by performing a predetermined operation after the construction is completed. In the intercom main unit according to claim 3 or 4,
An intercom master unit comprising an informing means for informing that the operation is restricted when the mode is shifted to the low power consumption mode. In the intercom base unit according to any one of claims 3 to 5,
The interphone master unit, wherein the control unit limits the operation in a stepwise manner as the supply voltage decreases within a range equal to or less than the fail-safe value. The intercom base unit according to any one of claims 1 to 6,
An intercom system comprising: a power source for supplying power to the intercom base unit. The intercom system according to claim 7,
It is installed at a common entrance of an apartment house and has a common entrance connected to be able to communicate with the intercom master unit.
The intercom base unit transmits the identification information of itself and the identification information of the power source received from the power source to the common entrance unit. The intercom system according to claim 8,
When the interphone master unit does not receive the identification information of the power supply, the intercom base unit notifies that it has not received the identification information, and does not receive the identification information to other terminals. An intercom system that performs at least one of the notifications.