JP5779475B2 - Apartment house intercom device - Google Patents

Description

  The present invention relates to an apartment intercom apparatus installed in an apartment house such as a condominium, and in particular, a fire that has occurred in an apartment house is installed outside a dwelling unit by controlling a living room base unit installed in the dwelling unit. The present invention relates to a collective housing intercom apparatus that can perform alarm notification (alarm display, alarm generation) at an entrance cordless handset.

  Conventionally, an apartment house intercom apparatus having the configuration shown in the system explanatory diagram of FIG.

  This collective housing intercom apparatus includes a collective entrance machine 501 installed at a collective entrance of an apartment house, entrance cordless handsets 502a, 502b,. .., A voice call is established in response to a call from the machine 501 or the entrance slave units 502a, 502b,..., And at least one of the collective entrance unit 501 and the entrance slave units 502a, 502b,. In order to display the video signal generated by the collective entrance 501, it is connected via the collective entrance transmission line L 501 to the room master units 503 a, 503 b,. The main unit 503a, 503b,... Connected from the collective entrance 501 and the unit transmission line L502 via the relays 504a, 504b,. And a controller 505 for respectively controlling.

  It should be noted that the living room master units 503a, 503b,... Are routed through three-wire slave unit / master unit transmission paths L503a (L530, L531, L532), L503b (L530, L531, L532),. Are connected, and as such a connection mode, for example, a security door phone described in Non-Patent Document 1 is disclosed.

Aiphone general catalog 2005/2006 edition (for example, security doorphone “Combination of QF-DK, QE-1M-T and additional emergency push button” described on page 61, “QF-DK, QE-1GT-11, Gas Combination of leak alarm and additional emergency push button ”)

  However, according to the collective housing intercom apparatus shown in FIG. 5 described in the background art, an alarm notification (alarm display, alarm display, etc.) is performed at the entrance cordless handsets 502a, 502b,... Under the control of the living room masters 503a, 503b,. When generating an alarm, a signal transmission line L530 for transmitting a control signal for displaying an alarm, a signal transmission line L531 for transmitting a sound signal such as an alarm sound for performing an alarm, power supply (power supply) Three lines of ground line L532 were required.

  The present invention was made to solve this problem, and a fire that occurred in an apartment house was warned by an entrance unit by controlling a room base unit connected via a two-wire transmission line. An object of the present invention is to provide a collective housing intercom apparatus that can perform notification (alarm display, alarm generation).

In order to achieve the above-described object, an apartment intercom apparatus according to a first aspect of the present invention is an indicator lamp that is installed at a dwelling entrance of each dwelling unit of a dwelling unit and displays a warning for a fire that has occurred in the dwelling unit. And an entrance cordless handset having a speaker for alarming the occurrence of a fire, and a room base set installed in the dwelling unit and connected to the entrance cordless handset via a two-wire transmission line. The parent unit power supply for powering the main unit via a two-wire transmission line when waiting, calling from the main unit or making a call with the main unit And a signal generation unit for generating a sound signal such as a control signal for driving an indicator lamp and an alarm sound to be output by a speaker when a fire occurs in the apartment, and a fire in the apartment And an emergency power supply unit for receiving an emergency power source installed in the apartment and driving the signal generation unit when the operation of the master unit power supply unit is stopped. The entrance cordless handset is transmitted from the master unit via the two-wire transmission path and the power source detection unit for detecting the presence or absence of power supplied from the master unit via the two-wire transmission path. A signal separation unit for separating the incoming control signal and sound signal, and a control signal processing unit for performing predetermined signal processing such as full-wave rectification and waveform shaping on the control signal separated by the signal separation unit; A first changeover switch for forming a signal transmission line from the two-wire transmission path to the control signal processing unit when there is no power supply detected by the power supply detection unit, and no power supply detected by the power supply detection unit A second switch for forming a signal transmission line from the control signal processing unit to the indicator lamp at the time, and a signal transmission line from the signal separation unit to the speaker at the time of no power supply detected by the power source detection unit A third switching switch for It is equipped with a door.

  Moreover, in the apartment housing intercom device according to the second aspect of the present invention, in the first aspect of the present invention, the signal generation unit of the living room base unit drives the indicator lamps to turn on and off, and turns on and off. A control signal is generated for changing the value as time elapses.

  Further, in the apartment housing intercom device according to the third aspect of the present invention, in the first aspect of the present invention, the signal generation unit of the living room master unit causes the indicator lamp to blink by PFM driving, and the blinking cycle is timed. The control signal for changing with progress of this is produced | generated.

  Further, in the apartment housing intercom device according to the fourth aspect of the present invention, in the first aspect of the present invention, the signal generation unit of the living room master unit drives the voltage amplitude of the indicator lamp by PAM and sets the voltage amplitude of the time. A control signal for increasing the amount of light of the indicator lamp by changing with the passage of time is generated.

  According to the apartment house intercom apparatus of the present invention, the power supply detection unit detects the presence or absence of power supply (power supply) from the master unit power supply unit of the living room master unit to the entrance slave unit via the two-wire transmission path, The entrance cordless handset that is generated by the signal generating section of the living room base unit by controlling the first to third changeover switches according to the difference between the power feeding time and the no power feeding time detected by the power source detecting section. Switch the signal transmission line of the control signal for displaying the alarm on the display unit and the sound signal such as the alarm sound for issuing the alarm on the speaker of the front door unit, and also the signal generation unit when there is no power supply The operation power supply can be secured by an emergency power supply, and the operation of the signal separation unit composed only of the passive function can be ensured when no power is supplied. As a result, regardless of the difference in power supply or non-power supply, the fires that occur in the apartment house are connected via the two-wire transmission line with reduced wiring. Alarm control (alarm display, alarm notification) can be performed at the entrance unit by controlling the machine.

FIG. 1 is an explanatory diagram of a system showing an overall configuration of an apartment house intercom apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a specific configuration of the entrance cordless handset in the apartment house intercom apparatus according to the embodiment of the present invention. FIG. 3 is a block diagram showing a specific configuration of the base unit in the apartment house intercom apparatus according to the embodiment of the present invention. 4 (A), 4 (B), and 4 (C) are pulse waveform diagrams showing examples of control signal patterns generated by the signal generator of the living room master unit in the apartment house intercom apparatus according to the embodiment of the present invention. It is. FIG. 5 is an explanatory diagram of a system showing an overall configuration of a collective housing intercom apparatus according to a conventional example.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments to which an apartment house intercom device of the present invention is applied will be described below with reference to the drawings.

  FIG. 1 is a system explanatory diagram showing the overall configuration of an apartment house intercom apparatus according to an embodiment of the present invention, which is installed in an apartment house such as an apartment. This multi-dwelling unit intercom apparatus is a multi-dwelling unit 1 installed at a multi-destination entrance of a multi-dwelling unit, and a plurality of dwelling units in a dwelling unit, in this case, a dwelling unit of a plurality of dwelling units such as room A, room B , For example, each installed at the entrance of a dwelling unit, calling a room master unit 3a, 3b,... To be described later and transmitting and receiving audio signals to establish a call and generate a video signal. The entrance cordless devices 2a, 2b,... For notifying the fire that has occurred (alarm display, alarm alerting), and the entrance door device 2a of the collective entrance device 1 or the self-dwelling unit respectively installed in the above-mentioned dwelling units. The telephone call is established by transmitting and receiving voice signals in response to a call from 2b,... And at least the collective entrance machine of the collective entrance machine 1 and the entrance slave units 2a, 2b,. Video signal generated in 1 , And the room master units 3a, 3b,... For notifying the fire that has occurred in the apartment (warning display, warning), and the above-mentioned dwelling units and common areas of the apartment , Fire sensors 4a, 4b,... For detecting fire occurrence, emergency power supply 5 installed in the apartment house, and the collective entrance machine 1 connected via the collective entrance transmission line L1. , And a controller 6 for controlling the entrance cordless handsets 2a, 2b,... Connected via the dwelling unit transmission line L2.

  The entrance cordless handsets 2a, 2b,... Are rooms via two-wire cordless handset / master cord transmission paths L3a (L30, L31), L3b (L30, L31,...),. It is connected to the parent devices 3a, 3b,. The fire sensors 4a, 4b,... And the emergency power supply 5 are individually or common transmission paths (power supply paths). Here, the individual sensor transmission paths L4a, L4b,. Are connected to the room master units 3a, 3b,. The fire sensors 4a, 4b,... Are not limited to the connection mode via the individual sensor transmission paths L4a, L4b,. It is also possible to connect to the room master units 3a, 3b,... Via a road (not shown).

In FIG. 1, the collective entrance machine 1 includes a (collective entrance) operation unit 100, a (collective entrance) video imaging unit 101, and a (collective entrance) call unit 102. Here, the operation unit 100 performs an operation for a visitor at the collective entrance to call a resident in a room in a specific dwelling unit, and includes, for example, a numeric keypad button 100a and a call button 100b. ing. The video imaging unit 101 is for generating a video signal by capturing a video of a visitor who has performed a predetermined call operation using the operation unit 100 (100a, 100b) or a video in the vicinity of the central entrance. For example, it is composed of various image pickup media such as CCD and CMOS. Further, the call unit 102 transmits and receives a voice signal for establishing a call with a (specific) resident who is a call destination of the visitor, and includes, for example, a microphone 102a and a speaker 102b. ing.

  The entrance slave units 2a, 2b,... Have the same configuration, and include a (slave unit) operation unit 200, a (slave unit) video imaging unit 201, a (slave unit) indicator lamp 202 and a (slave unit) call unit 203 is provided. Here, the operation unit 200 performs an operation for a visitor at the entrance of the dwelling unit to call a resident in the room in the dwelling unit, and includes, for example, a call button 200a. The video imaging unit 201 is for generating a video signal by capturing a video of a visitor who has performed a predetermined calling operation on the operation unit 200 (200a) or a video in the vicinity of the entrance to the dwelling unit. For example, it is composed of various video imaging media such as CCD and CMOS. Further, the indicator lamp 202 is for displaying a fire alarm (generated in the apartment house) detected by the fire sensors 4a, 4b,... By, for example, a light emitting medium such as an LED. It is configured. Further, the call unit 203 transmits and receives audio signals for establishing a call with a resident who is a call destination, and includes a microphone 203a and a speaker 203b. Moreover, the speaker 203b which comprises the telephone call part 203 alarms the fire (it generate | occur | produced in the apartment house) sensed not only by the above-mentioned telephone call function but fire sensors 4a, 4b, ... You can also.

  The room master units 3a, 3b,... Have the same configuration, and are provided with a (master unit) display unit 300, a (master unit) call unit 302, and a (master unit) operation unit 303. Here, the display unit 300 displays that there is a call from a visitor using the collective entrance 1 or the entrance cordless devices 2a, 2b,. .. For outputting video signals generated by at least the video imaging unit 101 of the collective entrance 1 among the video imaging units 201 of the imaging unit 101 and the entrance slave units 2a, 2b,. For example, it is composed of an LED (master unit) indicator lamp 300a having a call display / notification function and a monitor 300b such as an LCD having an image output function and an organic EL display. In addition, the call unit 301 transmits and receives an audio signal for establishing a call with a visitor who is a caller by a resident who is a user of the room master unit. For example, a microphone 301a and a speaker The speaker 301b also has the above-described call notification (call notification) function. The operation unit 302 performs a response operation for the resident to establish a call in response to a call from a visitor, an end-of-call operation for ending the established call, and the like. A response operation button 302a and a touch panel 302b having these operation functions are included. Moreover, the indicator lamp 300a which comprises the display part 300 displays not only the above-mentioned call alerting | reporting function but alarm display of the fire (it generate | occur | produced in the apartment house) sensed by the fire sensors 4a, 4b .... You can also. Furthermore, not only the above-mentioned call function but also a similar fire occurrence can be alarmed for the speaker 301b constituting the call unit 301. Note that the call unit 301 may include a handset (not shown).

  Next, the entrance cordless handsets 2a, 2b,... And the parent who are connected via the two-line cordless handset / master phone transmission lines L3a (L30, L31), L3b (L30, L31),. Specific configurations of the machines 3a, 3b,... Will be described with reference to the block diagrams of FIGS. 2, the circuits necessary for connecting to the controller 6 via the dwelling unit transmission line L2, and the dwelling unit transmission line L2 and the two-line cordless unit. / The illustration of the circuit necessary for connecting the master transmission lines L3a (L30, L31), L3b (L30, L31),... Is omitted.

  2 includes the operation unit 200 (200a), the video imaging unit 201, the indicator lamp 202, and the call unit 203 (203a, 203b), the slave CPU 204, and the slave unit. Machine timing generator 205, child machine image processing circuit 206, child machine indicator light driving circuit 207, child machine audio processing circuit 208, signal processing unit 209, power supply detection unit 210, signal separation unit 211, control signal processing unit 212, 1 to 3 selector switches 213, 214, and 215.

  In this entrance cordless handset 2a, 2b,..., The handset CPU 204 is for controlling each component / circuit of the entrance cordless handset. In addition, the slave unit timing generator 205 is for generating operation timings related to each component / circuit of the entrance slave unit.

  The slave unit video processing circuit 206 performs predetermined signal processing on the video signal generated by the video imaging unit 201, and performs, for example, A / D (analog / digital) conversion, size conversion, data compression, and the like. be able to.

  The slave unit indicator lamp drive circuit 207 is for driving and controlling the indicator lamp 202 via a transistor (or D / A converter circuit) (not shown). For example, the indicator lamp is driven by PWM to turn it on and off. Any one of an aspect, an aspect in which the indicator lamp is driven to blink by PFM, and an aspect in which the voltage amplitude of the indicator lamp is driven by PAM to increase the amount of light is applied.

  The handset audio processing circuit 208 performs predetermined signal processing on audio signals transmitted and received by the microphone 203a and the speaker 203b constituting the call unit 203. For example, A / D conversion or D / A conversion or data Compression / decompression can be performed.

  The signal processing unit 209 passes between the slave CPU 204 and the first changeover switch 213 between the two-wire slave / master transmission lines L3a (L30, L31), L3b (L30, L31),. (Bidirectional) signal transmission line and the slave unit video processing circuit 206 via the first changeover switch 213 to the two-line slave unit / master unit transmission lines L3a (L30, L31), L3b (L30, L31) ),..., Two-line slave unit / master unit transmission paths L3a (L30, L31), L3b (L30, L2) via the slave unit voice processing circuit 208 and the first changeover switch 213. L31), ... (bidirectional) signal transmission line and two-wire slave / master unit transmission lines L3a (L30, L31), L3b (L30, L31), ... A signal transmission line to the speaker 203b constituting the communication unit 203 via the changeover switch 213 and the third changeover switch 215. The slave unit indicator light is driven from the two-wire slave unit / master unit transmission lines L3a (L30, L31), L3b (L30, L31),... Via the first changeover switch 213 and the second changeover switch 214. And a signal transmission line to the circuit 207, respectively.

  The power source detection unit 210 supplies power from the room base units 3a, 3b,... Via the two-wire slave unit / base unit transmission paths L3a (L30, L31), L3b (L30, L31),. This is for detecting the presence or absence of a power source (slave unit standby power source, slave unit operation power source).

  The signal separation unit 211 is a two-wire slave / master unit transmission path L3a (L30, L31), L3b (L3b) from the living room master units 3a, 3b,. L30, L31),..., A control signal (alarm display control signal) transmitted through the first changeover switch 213 and driving the indicator lamp 202 in the above-described manner, and a speaker constituting the communication unit 203. For separating sound signals (alarm alert sound signals) such as alarm sounds (and voice messages) to be output in 203b, for example, for separating / extracting control signals (alarm display control signals) The filter is composed of a high-frequency band-pass first filter 211a and a low-frequency band-pass second filter 211b for separating and extracting a sound signal (alarm alert sound signal).

  The control signal processing unit 212 is for performing predetermined signal processing on the control signal (alarm display control signal) separated and extracted via the first filter 211a constituting the signal separation unit 211, for example, , A rectifier circuit 212a for full-wave rectification, and a third filter 212b for performing waveform shaping of a control signal (alarm display control signal) via the rectifier circuit 212a and obtaining an average voltage of the signal. ing.

  The first change-over switch 213 is operated from the two-wire slave / base unit transmission lines L3a (L30, L31), L3b (L30, L31),. This is for forming a signal transmission line to the first and second filters 211a and 211b constituting the signal separation unit 211. The change-over switch 213 has two-wire slave / base unit transmission paths L3a (L30, L31), L3b (L30, L31), according to the power supply (power supply) detected by the power supply detection unit 210. ... and a signal transmission line between the signal processing units 209 is formed.

  The second change-over switch 214 forms a signal transmission line from the third filter 212b constituting the control signal processing unit 212 to the slave unit indicator lamp drive circuit 207 when no power is detected detected by the power source detection unit 210. Is to do. The changeover switch 214 forms a signal transmission line from the signal processing unit 209 to the slave unit indicator lamp drive circuit 207 according to the power supply (power supply) detected by the power detection unit 210.

  The third changeover switch 215 forms a signal transmission line from the second filter 211b constituting the signal separation unit 211 to the speaker 203b constituting the call unit 203 when no power is detected by the power supply detection unit 210. Is to do. Note that the changeover switch 215 forms a signal transmission line from the signal processing unit 209 to the speaker 203b according to the power supply (power supply) detected by the power supply detection unit 210.

  3 includes the above-described (parent device) display unit 300 (300a, 300b), (parent device) call unit 301, and (parent device) operation unit 302. And a parent device CPU 303, a parent device timing generator 304, a parent device power supply unit 305, a sensor connection unit 306, a signal generation unit 307, an emergency power supply unit 308, a parent device indicator light drive circuit 309, a parent device video processing circuit 310, and a parent device. And a machine voice processing circuit 311.

  In the living room parent devices 3a, 3b,..., The parent device CPU 303 is for controlling each component / circuit of the living room parent device. The master unit timing generator 304 is for generating operation timings related to each component / circuit of the room master unit.

  The main unit power supply unit 305 receives DC power obtained by rectifying and smoothing the commercial power supply at the time of standby, when calling from the entrance unit 2a, 2b,. Alternatively, power is supplied to each component / circuit of the room base unit as a power source (base unit standby power source, base unit operating power source) when a call is established with the entrance unit of the self-contained unit , And power supply (power supply standby) for supplying power (power supply) to the constituent parts / circuits of the entrance slave units 2a, 2b,... Receiving power source, slave unit operating power source) and superimposing them on the two-wire slave unit / master unit transmission lines L3a (L30, L31), L3b (L30, L31),.

  The sensor connection unit 306 receives fire detection signals from the fire sensors 4a, 4b,... Connected via the sensor transmission lines L4a, L4b,. It is.

  When the fire is generated in the apartment house where the sensor connection unit 306 receives a fire detection signal from the fire sensors 4a, 4b,. Generates a control signal (alarm display control signal) for driving the indicator lamp 202 in the manner described above and a sound signal (alarm alert signal) such as an alarm sound to be output by the speaker 203b constituting the communication unit 203. Is to do. Further, the control signal (alarm display control signal) and the sound signal (alarm notification sound signal) generated by the signal generation unit 307 are the signals for driving the display lamp 300a that constitutes the display unit 300 of the private room master unit, This is also a signal for outputting an alarm sound or the like at the speaker 301b constituting the call unit 301.

  The signal generation unit 307 generates not only the control signal and the sound signal for the alarm notification described above, but also the call from the entrance unit 2a, 2b,. It is also possible to generate a control signal (call display control signal) and a sound signal (call alert signal) for displaying a call.

  The emergency power supply unit 308 operates in the housing power source unit 305 when a fire occurs in the apartment house such that the sensor connection unit 306 receives a fire detection signal from the fire sensors 4a, 4b,. When the (power feeding operation) is stopped, the power generation unit 307 is driven by receiving the emergency power supply 5 connected via the emergency power supply path L5.

  Based on the control signal (alarm display control signal, call display control signal) generated by the signal generation unit 307, the base unit indicator lamp drive circuit 309 displays the signal via a transistor (or D / A conversion circuit) (not shown). For example, the display lamp 300a constituting the unit 300 is driven and controlled. For example, the display lamp is PWM-driven to turn on and off, the display lamp is PFM-driven to blink, and the display lamp Any one of the modes in which the voltage amplitude is PAM-driven to increase the amount of light is applied.

  The master video processing circuit 310 performs predetermined signal processing on the video signal output by the monitor 300b constituting the display unit 300, and performs, for example, D / A conversion, size conversion, data expansion, and the like. be able to.

  The base unit audio processing circuit 311 performs predetermined signal processing on audio signals transmitted and received by the microphone 301a and the speaker 301b constituting the call unit 301. For example, A / D conversion or D / A conversion or data Compression / decompression can be performed.

  In the apartment housing intercom device configured as described above, specific operations will be described below.

  Collective entrance machine 1 installed at the collective entrance shown in FIG. 1 or entrance slave units 2a, 2b installed at the entrances of the dwelling units such as Room A, Room B,... Shown in FIG. When there is no call from and a call is not established, the main unit power supply unit 305 of the parent unit 3a, 3b,... Installed in the dwelling unit of each dwelling unit shown in FIG. Not only generates standby power of a predetermined voltage level obtained by rectifying and smoothing the commercial power supply, and supplies power (power supply) to each component / circuit of the room base unit as the base unit standby power source, As a slave unit standby power source, it is superimposed on a two-wire slave unit / master unit transmission line L3a (L30, L31), L3b (L30, L31),.

  Here, the power detection unit 210 of the front cordless handset 2a, 2b,... Shown in FIG. 2 is a two-wire cordless handset / base unit transmission path L3a (L30, L31), L3b (L30, L31),. The power supply (power supply) state from the base unit power supply unit 305 of the living room master units 3a, 3b,... Is detected by receiving the slave unit standby power source superimposed on the slave unit. The standby power supply can supply power (power supply) to each component / circuit of the entrance cordless handset.

  In the power supply (power supply) state as described above, the first to third change-over switches 213, 214, and 215 of the front child devices 2a, 2b,. (Bidirectional) signal transmission line between the paths L3a (L30, L31), L3b (L30, L31),... And the signal processing unit 209, from the signal processing unit 209 to the slave unit indicator lamp driving circuit 207 A signal transmission line and a signal transmission line from the handset audio processing circuit 208 to the speaker 203b constituting the call unit 203 are formed.

  Next, at the time of standby as described above, for example, the collective entrance machine 1 installed in the collective entrance shown in FIG. 1 or the entrance cordless handset 2a installed in the dwelling entrance of the A room shown in FIGS. Of these, here, when a visitor at the entrance of the dwelling unit in room A performs a predetermined call operation using the operation unit 200 (200a) of the entrance cordless handset 2a, the cordless handset CPU 204 that detects this operation performs the cordless handset. A call signal S1 is generated. This slave unit call signal S1 is sent from the slave unit CPU 204 via the signal processing unit 209, the first changeover switch 213, and the two-wire slave unit / master unit transmission line L3a (L30, L31). The data is transmitted to the master CPU 303 of the master 3a.

  Based on the received slave unit call signal S1, the base unit CPU 303 of the base unit 3a detects that there is a call from a visitor at the entrance of the dwelling unit (room A) and controls the signal generation unit 307. Then, a call display control signal S10 composed of a predetermined pulse train (not shown) for displaying a call on the indicator lamp 300a constituting the display unit 300, and a call notification on the speaker 301b constituting the call unit 301. And a ringing sound signal S11 such as a ringing tone (or a voice message) for performing the operation, and controlling the base unit power supply unit 305 to supply an operating power supply having a predetermined voltage level higher than the standby power supply described above. Generate.

  Here, the operating power generated by the main unit power supply unit 305 of the living room main unit 3a is supplied to the constituent units / circuits of the living room main unit as a main unit operating power supply (power supply) as in the standby power supply described above. In addition, it is superimposed on the two-wire slave / master unit transmission line L3a (L3a, L3b) as the slave unit operating power, and from the power source detection unit 210 of the entrance slave unit 2a that detects this, Power is supplied to each component / circuit.

  Of the call display control signal S10 and the call alert sound signal S11 generated by the signal generator 307 of the living room base unit 3a, the base unit indicator light drive circuit 309 to which the call display control signal S10 is input There is a call from a visitor at the entrance of the self-dwelling unit (room A) by driving the indicator lamp 300a constituting the display unit 300 by a predetermined pulse train (not shown) constituting the call display control signal. A call indication can be made. On the other hand, the speaker 301b that constitutes the calling unit 301 to which the call alert sound signal S11 is input outputs a predetermined ringing sound or the like so that a call from a visitor at the dwelling entrance of the own dwelling unit (Room A) can be made. It is possible to issue a call notification to that effect.

  Note that the call display control signal S10 and the call alert sound signal S11 generated by the signal generation unit 307 of the living room master unit 3a are the two-line slave unit / master unit transmission line L3a (L30, L31), the entrance slave unit. It can also be sent to the signal processing unit 209 via the first changeover switch 213 of 2a.

  According to the signal processing unit 209 of the front door 2a, the call display control signal S10 of the received call display control signal S10 and the call notification sound signal S11 is driven via the second changeover switch 214. The call alert sound signal S11 is sent to the circuit 207 via the third changeover switch 215 to the speaker 203b constituting the call unit 203, respectively. Here, in the handset indicator lamp drive circuit 207 to which the call display control signal S10 is inputted, the indicator lamp 202 is driven in a predetermined pattern by a predetermined pulse train (not shown) constituting the alarm display control signal. Thus, it is possible to perform a confirmation display that the caller of the room master unit 3a in the dwelling unit has been normally called to the visitor. On the other hand, the speaker 203b to which the call alert sound signal S11 is input outputs a predetermined ringing tone or the like as, for example, a ringing confirmation sound, so that the room base unit 3a in the dwelling unit normally calls the call to the visitor. It is possible to issue a confirmation notification.

  As described above, the base unit CPU 303 of the home base unit 3a that has detected that there is a call from a visitor at the entrance of the self-dwelling unit (room A) displays a text message, picture data, etc. to that effect on the display unit. It is also possible to display the call by displaying on the monitor 300b constituting the unit 300.

  Furthermore, in the entrance cordless handset 2a to which the operation power supply is supplied (power supply) as described above, the image capturing unit 201 is active, and includes a visitor who performed a call operation (images near the vicinity of the dwelling entrance. ) Is generated. This video signal is transmitted from the video imaging unit 201 to the slave unit video processing circuit 206, the signal processing unit 209, the first changeover switch 213, the two-line slave unit / master unit transmission line L3a (L30, L31), and the room master unit 3a. Is transmitted to the monitor 300 b constituting the display unit 300 via the parent device video processing circuit 310. The monitor 300b displays a video signal that has been subjected to predetermined signal processing. According to a resident, the presence of a visitor who has performed a call operation based on the video signal is indicated as an output video. It can also be confirmed.

  Thereafter, when a resident in the room A establishes a call with a visitor who is at the entrance of the own unit, the operation unit 302 (302a, 302b) of the room base unit 3a is used. When a predetermined response operation is performed, the parent device voice processing circuit 311 is controlled from the microphone 301a constituting the calling unit 301 used by the resident under the control of the parent device CPU 303 that detected the operation and the child device CPU 204 of the entrance child device 2a. A two-line cordless handset / base cord transmission line L3a (L30, L31), a first changeover switch 213 (of the entrance cordless handset 2a), a signal processing unit 209, and a cordless handset voice processing circuit 208, by a visitor The signal transmission / call line (downward) to the speaker 203b constituting the call unit 203 used and the microphone 203a constituting the call unit 203 used by the visitor to the handset audio processing circuit 2 8. A resident through a signal processing unit 209, a first changeover switch 213, a two-wire slave / master unit transmission line L3a (L30, L31), and a master unit voice processing circuit 311 (of the parent unit 3a) Is formed by a signal transmission / call line (upward) to the speaker 301b constituting the call unit 301 used by the communication unit 301, and a voice signal is transmitted / received via the formed bidirectional line. Is established.

  Next, at the time of standby as described above, not only the entrance slave unit 2a but also other similar entrance slave units 2b, ... (or from the collective entrance unit 1), not only the entrance slave unit 2a but also the same When a call is made with other entrance cordless handset 2b,... (Or collective entrance machine 1), if a fire occurs in the apartment, fire sensors 4a, 4b,. Is transmitted to the master CPU 303 via the sensor transmission line L4, the sensor connection part 306 of the room masters 4a, 4b,.

  Based on the received fire detection signal S4, the base unit CPU 303 of the base unit 3a, 3b,... Detects that a fire has occurred in the apartment house, and the drive of the base unit power supply unit 305 does not stop. The signal generation unit 307 is controlled within a predetermined time during which the generation operation of the standby power source or the operation power source continues, and the display lamp 300a and the display lamps 202 of the entrance slave units 2a, 2b,. The alarm display control signals S20a, S20b, and S20c, which are predetermined pulse signals for performing alarm display, and the speaker 301b and the telephone unit 2a, 2b,. An alarm sound signal S21 such as an alarm sound (or voice message) for generating an alarm is generated by the speaker 203b.

  Here, as the alarm display control signal generated by the signal generation unit 307 of the living room master units 3a, 3b,..., For example, the indicator lamps 300a and 202 as shown in FIG. A first alarm display control signal for controlling an output pulse to a transistor (not shown) so as to increase the amount of light of the indicator lamp by PWM driving the lighting cycle and changing the lighting cycle with time. S20a and the blinking cycle of the indicator lamps 300a and 202 as shown in FIG. 4B are driven by PFM, and the output pulses to the transistors not shown are controlled so that the blinking cycle changes with time. The second alarm display control signal S20b and the voltage amplitude of the display lamps 300a and 202 as shown in FIG. 4C are driven by PAM, and the voltage amplitude is changed with the passage of time. light Of the third warning display control signal S20c for controlling an output pulse to the transistor via the D / A converter circuit (not shown) to increase, any one of the warning display control signal is applied.

  Here, any one of the first to third alarm display control signals S20a, S20b, S20c generated by the signal generation unit 307 of the living room master units 3a, 3b,. In the inputted main unit indicator lamp drive circuit 309, the indicator lamp 300a constituting the display unit 300 is PWM-driven by the predetermined pulse train shown in FIG. 4A constituting the first alarm display control signal S20a. A mode in which the light quantity of the indicator lamp is increased, and the blinking cycle of the indicator lamp is changed by PFM driving the indicator lamp 300a with the predetermined pulse train shown in FIG. 4B constituting the second alarm display control signal S20b. Any one of the modes in which the voltage amplitude of the display lamp 300a is PAM-driven by the predetermined pulse train shown in FIG. 4C constituting the third alarm display control signal S20c to increase the light quantity of the display lamp. Aspect On the basis, it is possible to perform the alarm display to the effect that the fire occurred in the apartment. On the other hand, the speaker 301b to which the alarm sound signal S21 is input can issue a warning that a fire has occurred in the apartment house by outputting a predetermined alarm sound or the like.

  Further, any one of the first to third alarm display control signals S20a, S20b, and S20c generated by the signal generation unit 307 of the living room master units 3a, 3b,. The alarm sound signal S21 is the first switching between the two-line cordless handset / base unit transmission lines L3a (L30, L31), L3b (L30, L31),..., The entrance cordless handsets 2a, 2b,. The signal is transmitted to the signal processing unit 209 via the switch 213.

  According to the signal processing unit 209 of the entrance cordless devices 2a, 2b,..., The operation power source is generated without stopping the driving of the parent device power supply unit 305 of the living room parent devices 3a, 3b,. Since the operation state is ensured within a predetermined period of time, any one of the received first to third alarm display control signals S20a, S20b, S20c is the second alarm display control signal. Similarly, the alarm warning sound signal S21 received via the change-over switch 214 is sent to the handset indicator lamp drive circuit 207 to the speaker 203b constituting the call unit 203 via the third change-over switch 215. . Here, in the slave unit lamp driving circuit 207 to which any one of the first to third alarm display control signals S20a, S20b, S20c is inputted, the first alarm display control signal S20a is received. FIG. 4B, which constitutes the second alarm display control signal S20b, is a mode in which the indicator lamp 202 is PWM-driven by the predetermined pulse train shown in FIG. A mode in which the blinking cycle of the indicator lamp is changed by PFM driving the indicator lamp 202 by the predetermined pulse train shown, and the indicator lamp by the predetermined pulse train shown in FIG. 4C constituting the third alarm display control signal S20c. Based on any one of the modes in which the voltage amplitude of 202 is PAM-driven to increase the amount of light of the indicator lamp, an alarm display can be made that a fire has occurred in the apartment house. On the other hand, the speaker 203b, to which the alarm sound signal S21 is input, can output an alarm sound indicating that a fire has occurred in the apartment house by outputting a predetermined alarm sound or the like.

  Next, after the occurrence of a fire is detected by the master CPU 303 of the living room master units 3a, 3b,..., The drive of the master unit power supply unit 305 is stopped and no standby power source or operating power source is generated. Then, the emergency power supply unit 309 starts receiving power to the emergency power supply 5 connected via the emergency power supply path L5. Here, the emergency power supply unit 309 is configured to output one of the first to third alarm display control signals S20a, S20b, and S20c in the signal generation unit 307 based on the received emergency power supply 5. The generation operation of the signal and alarm sound signal S21 can be continued.

  In addition, when the driving of the main unit power supply unit 305 of the living room main units 3a, 3b,... Is stopped and no power is generated, the front door units 2a, 2b,. The power source detection unit 210 switches the first to third change-over switches 212, 213, and 214, respectively, and the two-wire slave / base unit transmission lines L3a (L30, L31), L3b (L30, L31),. To the signal separation unit 211 (the first and second filters 211a and 211b constituting the signal transmission line), the third filter 211b constituting the control signal processing unit 210 to the slave unit indicator lamp drive circuit 207 A signal transmission line and a signal transmission line from the second filter 211b constituting the signal separation unit 211 to the speaker 203b constituting the call unit 203 are formed.

  Thereby, even if the driving of the main unit power supply unit 305 of the living room main units 3a, 3b,... Is stopped, the first to the first generation generated by the signal generation unit 307 whose operation is continued by the emergency power supply 5. 3 alarm display control signals S20a, S20b and S20c, the alarm display control signal and alarm sound signal S21 are two-wire slave / master unit transmission lines L3a (L30, L31), L3b ( L30, L31),..., Are transmitted to the signal separation unit 211 via the first change-over switches 213 of the front door units 2a, 2b,.

  In the entrance cordless handset 2a, 2b,..., The first and second filters 211a and 211b constituting the signal separation unit 211 are included in the received first to third alarm display control signals S20a, S20b, and S20c. Any one of the alarm display control signal and the alarm sound signal S21 is separated and extracted, and any one of the first to third alarm display control signals S20a, S20b, S20c is After performing predetermined signal processing such as full-wave rectification and waveform shaping sequentially through the rectifier circuit 212a and the third filter 212b constituting the control signal processing unit 212, the child is transmitted via the second change-over switch 214. It is sent to the machine indicator lamp drive circuit 207. On the other hand, the alarm sound signal S21 separated and extracted in the same manner is sent to the speaker 203b constituting the call unit 203 via the third changeover switch 215.

  Thereby, even if the driving of the main unit power supply unit 305 of the living room main units 3a, 3b,... Is stopped due to the occurrence of a fire, the operation is continued by the emergency power source 5. In the cordless handset device 2a, 2b,..., To which any one of the alarm display control signals S20a, S20b, S20c is input, the first alarm display A mode in which the light quantity of the indicator lamp is increased by PWM driving the indicator lamp 202 by a predetermined pulse train shown in FIG. 4A constituting the control signal S20a, and a second alarm display control signal S20b is constituted as shown in FIG. A mode in which the blinking cycle of the indicator lamp is changed by PFM driving the indicator lamp 202 by the predetermined pulse train shown in B), and the predetermined pulse train shown in FIG. 4C constituting the third alarm display control signal S20c. The voltage of the indicator light 202 is The width and PAM driven based on any one aspect of the embodiments to increase the amount of light of the display lamp can be continued alarm indication of a fire in the apartment house. On the other hand, the speaker 203b that constitutes the communication unit 203 to which the alarm sound signal S21 has been input continues to issue a warning that a fire has occurred in the apartment house by outputting a predetermined alarm sound or the like. Can be done.

  As is apparent from the above description, according to the multi-family intercom apparatus of the present invention, a two-line transmission path (slave unit / base unit transmission) from the base unit power supply unit 305 of the base units 3a, 3b,. Road) L3a (L30, L31), L3b (L30, L31),... Then, by controlling the first to third changeover switches 213, 214, and 215 according to the difference in power supply or no power supply detected by the power supply detection unit 210, the living room master units 3a, 3b,. .. Signals generated by the signal generation unit 307, control signals for displaying an alarm on the display unit 202 of the door units 2a, 2b,... And speakers of the door units 2a, 2b,. Switching signal transmission line for sound signal such as alarm sound for issuing alarm in 203b Furthermore it is possible to secure the emergency power 5 operating power of the signal generator 307 at the time of no power supply. As a result, regardless of the difference in power supply or non-power supply, the fire that occurred in the apartment house can be used to reduce the wiring of the two-wire transmission line (slave / base unit transmission line). Alarms at the entrance cordless handsets 2a, 2b,... Under the control of the living room master units 3a, 3b,... Connected via L3a (L30, L31), L3b (L30, L31),. Notification (alarm display, alarm generation) can be made.

  Note that the apartment house intercom device of the present invention has been described with a specific embodiment. However, the present invention is not limited to this embodiment, and any configuration known so far can be used as long as the effect of the present invention is achieved. It goes without saying that even devices can be employed.

  Specifically, according to the embodiment of the present invention, the indicator lights 202 of the front door units 2a, 2b,... Generated by the signal generation unit 307 of the living room master units 3a, 3b,. The indicator light that constitutes the display unit 300 of the private room main unit for the control signal (alarm display control signal) to be output and the sound signal (alarm alert signal) that is output by the speaker 203b that constitutes the communication unit 203 Although the signal for driving 300a and the signal for outputting an alarm sound or the like are output from the speaker 301b constituting the calling unit 301, it is not limited to this mode. For example, a control signal (alarm display control signal) for driving the indicator lamps 202 of the entrance cordless handsets 2a, 2b,... And a sound signal such as an alarm sound output by the speaker 203b constituting the communication unit 203 (alarm notification) Sound signal), a control signal (alarm display control signal) for driving the indicator lamp 300a constituting the display unit 300 of the private room master unit, and a sound signal for outputting an alarm sound or the like by the speaker 301b constituting the communication unit 301 ( Alarm warning sound signal) can be generated and applied as the signals in different patterns.

2a, 2b,... ... Entrance cordless handset 202 ... Indicator lamp 203b ... Speaker 210 ... Power supply detection unit 211 ... Signal separation unit 212 ... Control signal processing unit 213, 214, 215 ... First to second 3rd change-over switch 3a, 3b, ... Living room master 305 ... Master power supply 307 ...... Signal generator 308 ...... Emergency power supply 5 ... Emergency power

Claims (4)

An entrance having an indicator lamp (202) installed at a dwelling entrance of each dwelling unit of the apartment house for warning display of a fire that has occurred in the apartment house, and a speaker (203b) for warning the occurrence of the fire And a master unit (3a, 3b) that is installed in the dwelling unit and connected to the entrance slave unit via a two-wire transmission line (L3a, L3b,...). ,...
In order to supply power to the living room base unit via the two-wire transmission line when waiting, when calling from the front unit or when a call is established with the front unit. And a signal for generating a sound signal such as a control signal for driving the indicator lamp and an alarm sound to be output by the speaker when the fire occurs in the apartment house. When the fire occurs in the collective housing and the operation of the main unit power supply unit is stopped, the generator (307) receives the emergency power supply (5) installed in the collective housing and generates the signal. An emergency power supply unit (308) for driving the unit,
The entrance cordless handset includes a power source detection unit (210) for detecting the presence of power supplied from the living room base unit via the two-wire transmission path, and the two-wire transmission path. A signal separation unit (211) for separating the control signal and the sound signal transmitted from the living room master unit, and full-wave rectification and waveform shaping for the control signal separated by the signal separation unit. A control signal processing unit (212) for performing predetermined signal processing such as a signal transmission line from the two-wire transmission path to the control signal processing unit when no power is detected detected by the power supply detection unit. A first changeover switch (213) for forming and a second changeover for forming a signal transmission line from the control signal processing unit to the indicator lamp when no power is detected by the power source detection unit Switch (214) and front Housing intercom system, characterized in that it comprises from the signal separator at the time of no power supply detected by the power detection unit and a third changeover switch (215) for forming a signal transmission line to the loudspeaker.
  The signal generator of the living room master unit generates a control signal for PWMing the indicator lamp to turn it on and off, and changing the cycle of turning on and off over time. The apartment housing intercom device according to 1.   2. The signal generation unit of the living room master unit generates a control signal for causing the indicator lamp to blink by PFM driving and changing the blinking cycle as time elapses. Apartment housing intercom device.   The signal generation unit of the living room master unit drives the voltage amplitude of the indicator lamp by PAM to increase the amount of light of the indicator lamp by changing the voltage amplitude with time. The apartment housing intercom device according to 1.

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