JP2015029180A - Intercom system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently ensure security in unlocking operation of an electric lock and improve usability of a person staying in a room who performs the unlocking operation, by making it possible to change an operation function to be active for unlocking the electric lock depending on an installation location of an intercom master unit.SOLUTION: Depending on an installation location of intercom master units 2a, 2b at which unlocking operation of an electric lock is performed, an operation function to be active is changed, like first unlocking operation sections 21a, 21b by which a person staying in a room performs one-push operation to unlock an electric lock 3, and second unlocking operation sections 22a, 22b by which a person staying in a room inputs numbers corresponding to a predetermined electric lock unlocking code for unlocking the electric lock to unlock the electric lock.

Description

  The present invention relates to an intercom system for unlocking an electric lock installed at a dwelling unit entrance, and in particular, an operation function that is activated in accordance with an installation location of an interphone master unit in which the unlocking operation of the electric lock is performed. The present invention relates to a changeable intercom system.

  Conventionally, as an intercom system of this kind, an unlock button for unlocking an automatic door with an electric lock connected to an entrance door (with a camera) installed at the entrance of a housing complex has been provided in the housing complex. There is disclosed a collective housing intercom system that is provided in a base unit installed in each dwelling unit and that unlocks an electric lock by one-pushing the unlock button (see, for example, Patent Document 1). ).

JP 2003-224669 A

  According to the apartment house intercom system described in the background art, since the unlock button for unlocking the electric lock is limited to one-push operation, the operation timing is during a call in response to a call from a visitor. If it is after the visitor has been identified, security (crime prevention) can be sufficiently ensured. On the other hand, for example, when the visitor is not in a standby mode, the visitor is identified. There was a possibility that sufficient security could not be secured because it was not the timing.

  The present invention has been made to solve this problem, and by making the operation function activated for unlocking the electric lock changeable according to the installation location of the interphone master unit, the electric lock is provided. The purpose is to provide an intercom system that ensures sufficient security during the unlocking operation and that enhances the usability of the occupants performing the unlocking operation.

  In order to achieve the above-mentioned object, an intercom system according to a first aspect of the present invention is an electric lock that is installed outside a dwelling unit and a visitor calls a resident in the dwelling unit to make a call and is installed at the entrance to the dwelling unit. Interphone cordless handset having a predetermined electric lock unlocking code for unlocking and a plurality of interphone master phones installed in the dwelling unit and responding to calls from visitors This system. Each of the interphone master units has a first unlocking operation unit in which a room occupant performs a one-push operation to unlock the electric lock, and a room occupant inputs a number corresponding to the electric lock unlocking code. A second unlocking operation unit for unlocking the electric lock, and an operation function of the first unlocking operation unit corresponding to the installation location of the master unit is made active or inactive, and the first unlocking operation A main unit CPU that sends an electric lock / unlock code to the interphone slave unit when operating the second unlocking operation unit. The intercom slave unit determines whether or not the electric lock / unlock code or the number transmitted from the master CPU of the plurality of interphone master units is valid, and unlocks the electric lock when it is valid. A slave CPU is provided.

  According to the intercom system of this aspect, the first unlocking operation unit in which the room occupant performs the one-push operation to unlock the electric lock, and the room occupant predetermined in order to unlock the electric lock. Corresponding to the location of the interphone master unit where the unlocking operation of the electric lock is performed, such as the second unlocking operation unit that unlocks the electric lock by inputting the number corresponding to the electric unlocking code Thus, the operation function to be activated can be changed.

  Moreover, the intercom system which is a 2nd aspect of this invention is a 1st aspect of this invention, and the 1st unlocking operation part has light-emitting bodies, such as LED. The master CPUs of the plurality of intercom masters perform highlighting of the light emitter when the operation function of the first unlocking operation unit is active.

  According to the intercom system of this aspect, the fact that the operation function related to the first unlocking operation unit that unlocks the electric lock by one-push operation is active is visually displayed so that the light emitting body such as the LED is highlighted. By making the occupant confirm using the automatic notification means, the usability of the occupant performing the unlocking operation is enhanced.

  The interphone system according to the third aspect of the present invention is the same as the first aspect or the second aspect of the present invention, in which the interphone slave unit and the plurality of interphone base units are connected via a general-purpose network such as a LAN. They are connected to each other and set active or inactive of the operation function of the first unlocking operation unit via the general-purpose network.

  According to the interphone system of this aspect, the setting of the active operation function is performed between the interphone slave unit and the interphone master unit in correspondence with the installation location of the interphone master unit where the unlocking operation of the electric lock is performed. For example, it can be performed by using an external device such as a personal computer (PC) via a general-purpose network such as a LAN to be connected.

  According to the intercom system of the present invention, for example, an operation function that unlocks an electric lock by a one-push operation when a resident is in a call with a visitor and a visitor, An unlocking operation of an electric lock, such as an operation function for unlocking the electric lock by inputting a number corresponding to a predetermined electric lock unlocking code to unlock the electric lock at the time of receiving etc. The active operation function can be changed in accordance with the location of the interphone master unit where the operation is performed, so that sufficient security is ensured and the occupant's usability to perform the unlocking operation is enhanced. .

The block diagram which shows the concrete structure of the intercom system by the Example of this invention.

  Embodiments to which the intercom system of the present invention is applied will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a specific configuration of an intercom system according to an embodiment of the present invention. This intercom system is installed outside the dwelling, for example, in the vicinity of the entrance of the dwelling unit entrance, and the intercom handset 1 in which a visitor calls a resident in the dwelling unit to make a call, and is installed at a different location in the dwelling unit from the visitor A plurality of interphone master units with which a person in the room responding to the call makes a call, here, two interphone master units (hereinafter referred to as first and second interphone master units) installed in the room and in the hallway respectively. ) 2a, 2b, the electric lock 3 installed at the entrance of the dwelling unit (the entrance door) and the interphone slave unit 1 and the first and second interphone master units 2a, 2b are connected to each other (mutually) A general-purpose network 4 such as WAN).

  In the figure, the interphone slave unit 1 and the general-purpose network 4 and the first and second interphone master units 2a and 2b and the general-purpose network 4 are each limited to a wired connection mode as illustrated. Instead, a wireless connection mode (not shown) is also preferable.

  Next, the intercom handset 1 shown in the figure has, for example, an IP address (hereinafter referred to as a handset address) as an identification code assigned to the handset, Unit 11, slave unit video processing unit 12, slave unit microphone 13, slave unit speaker 14, slave unit audio processing unit 15, slave unit CPU 16, network side slave unit interface (I / F) 17, and electric lock side slave unit I / F18 is provided.

  In the intercom handset 1, the handset operating unit 10 performs a calling operation for a visitor to call a room occupant, and includes, for example, a call (press) button. The video imaging unit 11 captures a video of a visitor and a video in the vicinity of the dwelling entrance (including a monitoring video), and generates a video signal by predetermined signal processing. It is comprised with various video imaging media, such as. The slave unit video processing unit 12 performs signal processing on the video signal generated by the video imaging unit 11, such as FM modulation and signal amplification. The video imaging unit 11 activates the operation when the presence of a human body in the vicinity of the intercom handset 1 is detected in conjunction with a human body sensing function of a human body sensor not shown. A video signal can also be generated.

  The handset microphone 13 and handset speaker 14 are used to input and output voice (voice signal) for a visitor to make a call with a room occupant. The handset audio processing unit 15 performs signal processing on sound (sound signal) input / output by use of the handset microphone 13 and handset speaker 14, for example, FM modulation or FM demodulation, signal amplification, etc. It is.

  The handset CPU 16 controls each component of the interphone handset, and stores, for example, an electric lock unlocking code that is predetermined when the electric lock 3 is unlocked. The electric lock unlocking code can be applied not only to a mode stored in the slave CPU 16 but also to a mode in which it is stored in a storage unit (not shown) and read by the control of the slave CPU 16.

  The network side slave unit I / F 17 is a signal transmission path from the slave unit video processing unit 12 to the general purpose network 4, a signal transmission path between the slave unit audio processing unit 15 and the general purpose network 4, and between the slave unit CPU 16 and the general purpose network 4. Each signal transmission path is formed, and various signals are transmitted and received via the formed signal transmission path. The electric lock side slave unit I / F 18 forms a signal transmission path between the slave unit CPU 16 and the electric lock 3 and unlocks the electric lock via the formed signal transmission path. Is to send.

  Next, the first and second interphone master units 2a and 2b shown in the figure have the same configuration, and for example, an IP address (hereinafter referred to as a master unit address) as an identification code assigned to the own master unit. ), Call operation units 20a and 20b, first unlocking operation units 21a and 21b, second unlocking operation units 22a and 22b, display units 23a and 23b, and master image processing units 24a and 24b. , Base unit microphones 25a and 25b, base unit speakers 26a and 26b, base unit audio processing units 27a and 27b, base unit CPUs 28a and 28b, and base unit I / Fs 29a and 29b.

  In the first and second interphone master units 2a and 2b, the call operation units 20a and 20b respond to the call from the visitor and the resident microphones 25a and 25b and the master speaker 26a and 26b respond. A response operation for starting a call by use and an end operation for ending the call are performed. For example, a call (press) button or an operation button on a touch panel arranged on the front of the display units 23a and 23b ( (Not shown).

  The first unlocking operation portions 21a and 21b are for a person in the room to perform a one-push operation to unlock the electric lock 3, and are constituted by, for example, an electric lock (pressing) button. The unlocking operation units 21a and 21b have a light emitting body 210 such as an LED that flashes or lights in a predetermined light emitting color, for example, red. The light emission color of the light emitter 210 is not limited to red, and any color such as green or blue can be applied, for example, and the light emission color itself can be used instead of the light emission pattern switched by blinking or lighting. Can also be changed.

  The second unlocking operation units 22a and 22b are used by the occupant to input a number corresponding to the above-described electric lock unlocking code, for example, a predetermined password or alphabet, and unlock the electric lock 3. For example, it includes predetermined operation buttons (ten-key buttons) and operation buttons on a touch panel arranged on the front surfaces of the display units 23a and 23b (not shown).

  The display units 23a and 23b display the video signal generated by the video imaging unit 11 of the interphone slave unit 1, and are composed of various display media such as an LCD and an organic EL display. The display units 23a and 23b can display, for example, text messages and picture data indicating that there is a call from a visitor, as well as the above-described call operation units 20a and 20b, the second unlocking. The operation units 22a and 22b can also be displayed (if necessary). The display units 23a and 23b can also apply, for example, an LED (not shown) that displays a call from a visitor in a predetermined blinking pattern or lighting pattern. The master video processing units 24a and 24b perform signal processing on the video signals displayed on the display units 23a and 23b, for example, FM demodulation and signal amplification.

  The base unit microphones 25a and 25b and the base unit speakers 26a and 26b are used to input / output voices (voice signals) for a person in the room to make a call with a visitor. As 26b, for example, a ringing tone or a voice message indicating that there is a call from a visitor can be output. The master audio processing units 27a and 27b perform signal processing on audio (audio signals) input / output by using the master microphones 25a and 25b and the master speakers 26a and 26b, for example, FM modulation or FM demodulation, Signal amplification or the like is performed.

  The master CPUs 28a and 28b control each part of the interphone master. The base unit I / F 29a, 29b includes a signal transmission path from the general-purpose network 4 to the base unit video processing units 24a, 24b, a signal transmission path between the base unit audio processing units 27a, 27b and the general-purpose network 4, and a base unit CPU 28a. 28b and the general-purpose network 4 are formed, and various signals are transmitted / received through the formed signal transmission path.

  In the general-purpose network 4 shown in the figure, an operation function for the first unlocking operation units 21a and 21b of the first and second interphone master units 2a and 2b is set to be active or inactive. For example, an external device 5 such as a personal computer (PC) can be connected.

  In the intercom system according to the embodiment of the present invention configured as described above, a specific operation will be described below.

  First, according to the first and second interphone master units 2a and 2b shown in FIG. 1, in order to unlock the electric lock 3 according to the installation location, for example, in the room or in the hallway. Necessary and effective operation functions can be set by using the external device 5 connected to the general-purpose network 4. Specifically, the external device 5 adds, for example, a SIP address corresponding to a base unit address that specifies one of the first and second interphone master units 2a and 2b and an address of the own device (device address). A setting data signal of the signal format is generated. This setting data signal is transmitted from the external device 5 via the general-purpose network 4 to the parent I / Fs 29a and 29b of the first and second interphone masters 2a and 2b.

  The master unit CPUs 28a and 28b of the first and second interphone master units 2a and 2b respectively receive the master unit address added to the setting data signal received via the master unit I / F 29a and 29b. Since it matches the assigned master unit address, it is determined that the setting data signal from the external device 5 that similarly matches the added device address is a valid signal, and the first unlocking operation units 21a and 21b. And any one of the second unlocking operation units 22a and 22b is set as active. Here, since the first intercom master unit 2a is installed in the room, the master CPU 28a activates the operation function of the first unlocking operation unit 21a and the operation function of the second unlocking operation unit 22a. Is set to be inactive. On the other hand, since the second intercom handset 2b is installed in the hallway, the base unit CPU 28b activates the operation function of the second unlocking operation unit 22b and the operation function of the first unlocking operation unit 21b. Set to inactive.

  Next, the first and second interphone slaves in which any one of the first unlocking operation units 21a and 21b and the second unlocking operation units 22a and 22b as described above is activated. When 2a and 2b call a room occupant installed in the room or hallway, a visitor outside the dwelling unit (the entrance to the dwelling unit) uses the handset operation unit 10 of the intercom handset 1 to perform a call operation. When the slave CPU 16 detects this operation, the slave CPU 16 adds, for example, a call to which the slave unit address and the master unit addresses respectively specifying the first and second interphone master units 2a and 2b are added in the SIP compatible signal format. Generate a signal. The call signal generated by the slave CPU 16 is sent from the network slave I / F 17 to the master I / Fs 29a and 29b of the first and second interphone masters 2a and 2b via the general-purpose network 4. Is transmitted.

  Further, according to the slave CPU 16 of the intercom slave 1, the video imaging unit 11 and the slave video processor 12 are activated when the call operation described above is detected. By this control, the visitor's video signal generated by the video imaging unit 11 is subjected to, for example, FM modulation, signal amplification, etc. The first and second interphone master units 2a are transmitted from the network side slave unit I / F 17 via the general-purpose network 4 as the signals to which the master unit addresses specifying the first and second interphone master units 2a and 2b are added. 2b, the master unit I / F 29a and 29b.

  The base unit CPUs 28a and 28b of the first and second interphone base units 2a and 2b respectively assign the base unit address added to the call signal received via the base unit I / F 29a and 29b to the base unit. In the same way, it is detected that there is a call from a visitor outside the dwelling unit (dwelling unit entrance) where the call operation was performed on the interphone slave unit corresponding to the added slave unit address. Then, a ringing tone and a voice message to that effect can be output from the parent speaker 26a, 26b to make a call notification. The master CPUs 28a and 28b activate the display units 23a and 23b and the master video processing units 24a and 24b, respectively. By this control, the master video processing units 24a and 24b send the video signals received via the master I / Fs 29a and 29b to the display units 23a and 23b, for example, by FM demodulation or signal amplification. In addition to being able to display the visitor's video (video signal) on the display units 23a and 23b, the display units 23a and 23b display text messages and picture data indicating that there is a call from the visitor. Can also be displayed (call display).

  After this, the above-mentioned call notification (call display) and video display are confirmed, and the occupants in the room where the first interphone master unit 2a is installed and the corridor where the second interphone master unit 2b is installed. As the person who performed the response operation first among the occupants, for example, when the occupant in the room where the first intercom master unit 2a is installed performs a response operation using the call operation unit 20a. The base unit CPU 28a that has detected this operation activates the base unit audio processing unit 27a and transmits signals between the base unit microphone 25a and the base unit speaker 26a and the base unit I / F 29a via the base unit audio processing unit. In addition to forming a transmission path, for example, a response signal (hereinafter referred to as a first response signal) is generated by adding a self-base unit address and a slave unit address designating the interphone slave unit 1 in a SIP compatible signal format. Further, the first response signal generated by the parent device CPU 28a is transmitted from the parent device I / F 29a to the network side child device I / F 17 of the interphone child device 1 via the general-purpose network 4.

  In addition, the master CPU 28a of the first intercom master 2a is active not only in the above-described call control but also in any one of the first unlock button 21a and the second unlock button 22a. Confirm. Here, since the setting to activate only the operation function of the first unlocking operation unit 21a is made in advance as described above, the light emitter 210 included in the unlocking operation unit 21a is changed to a predetermined light emission color, for example, By performing highlighting so as to blink in red, the occupant in the room can activate the operation function of the first unlocking operation unit 21a and deactivate the operation function of the second unlocking operation unit 22a. I can confirm that there is.

  In the first interphone master unit 2a, the control timing by the master unit CPU 28a for causing the light emitter 210 of the first unlocking operation unit 21a to blink in red, for example, is a response operation using the call operation unit 20a. It is not limited to the timing after being performed, and the timing at which the call notification (call display) as described above is performed can also be applied.

  The handset CPU 16 of the intercom handset 1 matches the handset address assigned to the handset to the handset address added to the first response signal received via the network side handset I / F 17. Therefore, it is detected that there is a response from a room occupant who has performed a response operation on the first interphone master unit 2a corresponding to the added master unit address, and the slave unit voice processing unit 15 is By forming a signal transmission path between the handset microphone 13 and handset speaker 14 and the network side handset I / F 17 via the handset voice processing section as active, the handset microphone used by the visitor 13 and the handset speaker 14 and a signal transmission path between the base unit microphone 25a and the base unit speaker 26a used by persons in the room, that is, a speech path (hereinafter referred to as a first speech path) is formed. ,Been formed Via one of the communication path call is established by transmitting and receiving an audio signal. In this call, a person in the room can make a call while checking the video (video signal) of the visitor displayed on the display unit 23a.

  Further, according to the occupants in the room, when inviting a visitor who is outside the dwelling unit (the entrance to the dwelling unit) into the dwelling unit at the time of the call as described above, the light emitting body 210 of the first interphone master unit 2a is, for example, The one-push unlocking operation is performed using the first unlocking operation unit 21a blinking in red. The master CPU 28a that has detected this operation adds, for example, an electric lock / unlock code, its own master device address, and a slave device address designating the interphone slave device 1 as its operation information. An unlocking activation control signal (hereinafter referred to as a first unlocking activation control signal) is generated. The first unlocking activation control signal generated by the master CPU 28a is transmitted to the network side slave I / F 17 of the interphone slave 1 via the same signal transmission path as the first response signal. Is done.

  The handset CPU 16 of the intercom handset 1 receives the handset address assigned to the handset by the handset address added to the first unlocking activation control signal received via the network side handset I / F 17. In addition, the electric lock / unlock code, which is the operation information added in the same manner, is determined to match the predetermined electric lock / unlock code in the slave unit, and the signal is determined to be valid. Then, an electric lock signal for unlocking the electric lock 3 is generated. The electric lock 3 to which this electric lock signal is transmitted from the slave CPU 16 via the electric lock side slave unit I / F 18 is unlocked, and a visitor outside the dwelling unit (dwelling unit entrance) is unlocked by the electric lock 3. You can open the locked entrance door and enter the dwelling unit.

  Further, the slave unit CPU 16 of the interphone slave unit 1 that has detected the unlocking of the electric lock 3 has added a master unit address and a master unit address that designates the first interphone master unit 2a in a SIP compatible signal format, for example. An unlock confirmation control signal (hereinafter referred to as a first unlock confirmation control signal) is generated. The first unlock confirmation control signal generated by the slave CPU 16 is transmitted via the same signal transmission path as the call signal described above, and the first interphone master 2a having the same master address. Is received as a valid signal in the parent CPU 28a. The master CPU 28a changes the light emitter 210 included in the first unlocking operation unit 21a flashing red in advance to, for example, lighting in red, so that the person in the room can use the electric lock 3 Can be confirmed to be unlocked normally.

  In addition, according to the resident in the room, the unlocking operation for unlocking the electric lock 3 as described above is performed using the first unlocking operation unit 21a of the first intercom master unit 2a. When the call termination unit 20a is used at the later timing, the first call path is blocked by the control of the master CPU 28a and the slave CPU 16 of the interphone slave unit 1 that detected this operation. The call can be terminated.

  On the other hand, for example, when a person in the hallway where the second interphone master unit 2b is installed performs a response operation using the call operation unit 20b as the person who performed the response operation first, this operation is performed. The detected master CPU 28b activates the master audio processor 27b to form a signal transmission path between the master microphone 25b and master speaker 26b and the master I / F 29b via the master audio processor. At the same time, for example, a response signal (hereinafter referred to as a second response signal) is generated in which a self-base unit address and a slave unit address designating the interphone slave unit 1 are added in a SIP compatible signal format. The second response signal generated by the master unit CPU 28b is transmitted from the master unit I / F 29b to the network side slave unit I / F 17 of the interphone slave unit 1 via the general-purpose network 4.

  In addition, the master CPU 28b of the second intercom master 2b is active not only in the above-described call control but also in any one of the first unlock button 21b and the second unlock button 22b. Confirm. Here, since the setting to activate only the operation function of the second unlocking operation unit 22b is made in advance as described above, the light emitter 210 included in the first unlocking operation unit 21b is held off. On the other hand, as an operation function of the second unlocking operation unit 22b, an operation button (numerical key, keyboard, etc., not shown) is displayed on the touch panel disposed on the front surface of the display unit 23b, thereby resident in the hallway Can confirm that the operation function of the first unlocking operation unit 21b is inactive and the operation function of the second unlocking operation unit 22b is active.

  In the second interphone master unit 2b, the control timing by the master unit CPU 28b for displaying operation buttons (numerical key, keyboard, etc., not shown) on the touch panel arranged on the front surface of the display unit 23b is controlled by the call operation unit 20b. It is not limited to the timing after the response operation is performed using, but the timing at which the call notification (call display) as described above is performed can also be applied.

  The handset CPU 16 of the intercom handset 1 matches the handset address assigned to the handset to the handset address added to the second response signal received via the network side handset I / F 17. Therefore, it is detected that there is a response from a room occupant who has made a response operation on the second interphone master unit 2b corresponding to the added master unit address, and the slave unit voice processing unit 15 is By forming a signal transmission path between the handset microphone 13 and handset speaker 14 and the network side handset I / F 17 via the handset voice processing section as active, the handset microphone used by the visitor 13 and the handset speaker 14 and the base unit microphone 25b and the base unit speaker 26b used by the people in the hallway, a signal transmission path, that is, a speech path (hereinafter referred to as a second speech path) is formed. ,Been formed Via the second communication path call is established by transmitting and receiving an audio signal. In this call, the occupant at the hallway can make a call while checking the video (video signal) of the visitor displayed on the display unit 23b.

  In addition, according to the occupants in the hallway, the second unlocking operation of the second interphone master unit 2b is performed when inviting a visitor who is outside the dwelling unit (the dwelling unit entrance) to the dwelling unit at the time of the call as described above. Using the unit 22b, an unlocking operation is performed in which a predetermined number corresponding to the above-described electric unlocking code, for example, a predetermined password or alphabet is input. The base unit CPU 28b that has detected this operation adds the number of the operation information, its own base unit address, and the slave unit address designating the interphone slave unit 1, for example, an unlock start control signal in a SIP compatible signal format. (Hereinafter referred to as a second unlocking activation control signal). The second unlocking activation control signal generated by the master CPU 28b is transmitted to the network side slave I / F 17 of the interphone slave 1 via the same signal transmission path as that of the second response signal. Is done.

  The handset CPU 16 of the intercom handset 1 receives the handset address assigned to the handset by the handset address added to the second unlocking activation control signal received via the network side handset I / F 17. In addition, it is determined that the signal, which is the operation information added in the same manner, corresponds to the electric lock / unlock code predetermined for the slave unit, is valid, An electric lock signal for unlocking the lock 3 is generated. The electric lock 3 to which this electric lock signal is transmitted from the slave CPU 16 via the electric lock side slave unit I / F 18 is unlocked, and a visitor outside the dwelling unit (dwelling unit entrance) is unlocked by the electric lock 3. You can open the locked entrance door and enter the dwelling unit.

  Further, the slave unit CPU 16 of the interphone slave unit 1 that has detected the unlocking of the electric lock 3 adds, for example, a slave unit address and a master unit address that designates the second interphone master unit 2b in a SIP compatible signal format. An unlock confirmation control signal (hereinafter referred to as a second unlock confirmation control signal) is generated. Also, the second unlock confirmation control signal generated by the slave CPU 16 is transmitted via the same signal transmission path as the call signal described above, and the second interphone master 2b having the same master address. Is received as a valid signal in the parent CPU 28b. The master CPU 28b displays, for example, a text message or picture data indicating that the electric lock 3 has been normally unlocked on the display unit 23b. It can be confirmed that it has been unlocked.

  In addition, according to the occupant in the hallway, the unlocking operation for unlocking the electric lock 3 as described above is performed using the second unlocking operation unit 21b of the second intercom master unit 2b. When the call end operation is performed using the call operation unit 20b at a later timing, the above-described second call path is blocked by the control of the base unit CPU 28b that detects this operation and the handset unit CPU 16 of the intercom handset 1. The call can be terminated.

  Next, according to the above description, the unlocking operation unit 22b is used in the second intercom base unit 2b in which only the operation function of the second unlocking operation unit 22b is set in advance. Thus, the timing of performing the unlocking operation is the time of a call established in response to a call from a visitor, but is not limited to this timing.

  For example, when the intercom cordless handset 1 is not waiting for a call from the first and second interphone master units 2a and 2b, or when the occupant in the hallway is monitoring the appearance outside the dwelling unit during a similar stand-by. The same unlocking operation can be performed using the second unlocking operation unit 22b even during monitor monitoring when the call operation unit 20b is operated to form the second communication path as described above. According to this operation timing, even when the first unlocking operation unit 21b is erroneously operated by one push, the operation function of the unlocking operation unit 21b is inactive, so that the electric lock 3 is unlocked. There is no need to do so, and sufficient security can be secured.

  As is apparent from the above description, according to the embodiment of the present invention, for example, an operation for unlocking the electric lock 3 by a one-push operation when a resident is talking with a visitor. A function (first unlocking operation unit 21a, 21b) and a number corresponding to a predetermined electric unlocking code for unlocking the electric lock 3 not only at the time of a call but at the time of standby, for example. As in the operation function (second unlocking operation units 22a and 22b) for unlocking the electric lock by inputting the key, the interphone master units 2a and 2b where the electric lock 3 is unlocked are installed. Correspondingly, the activated operation function can be changed, so that sufficient security is ensured and the operability of the occupant performing the unlocking operation is enhanced.

  The intercom system of the present invention has been described with a specific embodiment. However, the present invention is not limited to this embodiment, and the system has any configuration known so far as long as the effect of the present invention is achieved. It goes without saying that can also be adopted.

  Specifically, in the embodiment of the present invention, one interphone slave unit 1 is applied as the slave unit installed outside the dwelling unit. However, the present invention is not limited to this mode. For example, a plurality of intercom slave devices 1 can be installed at different locations outside the dwelling unit and connected to the general-purpose network 4, and a plurality of electric locks 3 can be provided corresponding to this. According to this aspect, by assigning an individual slave unit address to each of the plurality of interphone slave units 1, there is a case where a call is made from a specific slave unit to the first and second interphone master units 2a and 2b. However, it is possible not only to establish a call with a specific slave unit by specifying the slave unit address, but also to operate it not only at the time of call as described above but also at the standby time. The electric lock 3 connected to the specific slave unit by performing the unlocking operation using the first unlocking operation units 21a and 21b or the second unlocking operation units 22a and 22b which are activated. Can be unlocked.

  In the embodiment of the present invention, the number corresponding to the electric unlocking code input by using the second unlocking operation units 22a and 22b of the first and second intercom master units 2a and 2b. As described above, a predetermined password or alphabet is applied, but the present invention is not limited to this mode. For example, it is also preferable to display a predetermined key illustration on the touch panel disposed in front of the display units 23a and 23b as a numerical value, and perform a touch operation on the illustration.

  In the embodiment of the present invention, the video signal generated by the video imaging unit 11 of the interphone slave unit 1 is displayed on the display units 23a and 23b of the first and second interphone master units 2a and 2b. For example, by connecting a server (not shown) to the general-purpose network 4, the video signal can be stored and managed by the server.

1 …… Interphone slave unit 16 …… Slave unit CPU
2a, 2b... First and second interphone master units (multiple interphone master units)
21a, 21b... First unlocking operation unit 210 .. Illuminant 22a, 22b... Second unlocking operation unit 28a, 28b.
3 ... Electric lock 4 ... General-purpose network

Claims (3)

An intercom handset installed outside the dwelling unit and having a predetermined electric lock unlocking code for a visitor to call a resident in the dwelling unit to make a call and unlock the electric lock set at the dwelling entrance An intercom system having a plurality of interphone master units that are installed in the dwelling unit and in which the resident who responds to a call from the visitor makes a call,
Each of the plurality of intercom masters corresponds to a first unlocking operation unit in which the occupant performs a one-push operation to unlock the electric lock, and the occupant corresponds to the electric unlocking code. A second unlocking operation unit for inputting an input number to unlock the electric lock, and an operation function of the first unlocking operation unit corresponding to an installation location of the master unit is made active or inactive A master CPU that sends the electric unlocking code to the interphone slave unit when operating the first unlocking operation unit, and the numeric value when sending the second unlocking operation unit, respectively.
The intercom slave unit determines whether or not the electric unlocking code or the number transmitted from the master unit CPU of the plurality of interphone master units is valid. An intercom system comprising a slave CPU for unlocking a lock. The first unlocking operation unit has a light emitter such as an LED,
The interphone system according to claim 1, wherein the base unit CPU of the plurality of interphone base units performs highlighting of the light emitter when an operation function of the first unlocking operation unit is active.   The interphone slave unit and the plurality of interphone master units are connected to each other via a general-purpose network such as a LAN, and the operation function of the first unlocking operation unit is activated or not via the general-purpose network. The intercom system according to claim 1 or 2, wherein active is set.

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