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JP2007228301

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2007228301
PROBLEM TO BE SOLVED: To provide a simple communication device capable of reliably
preventing the occurrence of howling. SOLUTION: A speaker SP for outputting audio information
transmitted through an information line L2, a microphone M1 for collecting audio and outputting
an audio signal, and an audio signal output from the microphone M1 through an information line
L2. , And the microphone M1 has directivity higher in sensitivity in one direction (on the
vibrating portion 53c side) than sensitivity in the other direction, and the one direction is a
speaker SP. Arrange in the same direction as the output direction of. [Selected figure] Figure 1
Intercom
[0001]
The present invention relates to a telephone set.
[0002]
Conventionally, there is a telephone set installed indoors by an intercom system etc., and a
speaker for outputting voice from the telephone set installed at another place, a microphone for
inputting voice to be transmitted to the other telephone set, etc. There is.
[0003]
And since howling occurs when the sound generated from the speaker gets into the microphone,
various measures against howling are taken.
03-05-2019
1
For example, a delay circuit having a speaker and a pair of microphones and delaying the output
of the microphone closer to the speaker by the delay time of the sound wave corresponding to
the difference between the distance between both the microphones and the speaker; The level
adjustment amplification circuit that matches the output level of both microphones with respect
to the sound from the speaker by performing level adjustment corresponding to the difference in
distance, and the outputs of both microphones passing through the delay circuit and the level
adjustment amplification circuit are used as both inputs. A telephone set has been proposed in
which a differential amplifier circuit is provided and the output of the differential amplifier
circuit is used as a transmission signal.
[0004]
In this communication apparatus, after both microphones pick up the sound from the speaker,
delay and level adjustment are performed so that the sound components from the speakers input
to both microphones are canceled by the differential amplifier circuit. It is trying to prevent
howling by removing only the voice component from the (canceling process).
(See, for example, Patent Document 1) Patent No. 2607257 (Page 2 left column, line 13 to right
column line 3, line 4 page right column, line 26 to line 49, FIG. 1, FIG. 5)
[0005]
However, in the above conventional example, when the distance between the two microphones is
shorter than the distance between the speaker and the microphones making a call, the distances
between the speaker and the two microphones become substantially equal. Transmitted speech
from the speaker will be collected with almost the same amplitude.
[0006]
Therefore, when the above-described canceling process for reducing the voice component from
the speaker is performed from the voice signal to be transmitted, not only the voice component
from the speaker but also the voice component from the speaker are reduced. In the voice signal
after the speech, the relative difference between the voice component from the speaker desired
to be left and the voice component from the speaker desired to be reduced is small.
03-05-2019
2
[0007]
As a result, when the transmission voice is amplified to a sufficient level, the voice component
from the speaker is also amplified, and there is a problem that howling occurs.
[0008]
In addition, it is necessary to provide two types of microphones, a microphone for collecting the
voice emitted by the speaker and a microphone for collecting the voice emitted by the speaker,
and the configuration is complicated.
[0009]
The present invention has been made in view of the above-described problems, and an object
thereof is to provide a simple telephone apparatus capable of reliably preventing the occurrence
of howling.
[0010]
According to the first aspect of the present invention, a speaker for outputting voice information
transmitted through a wire, a microphone for collecting voice and outputting a voice signal, and
transferring a voice signal output from the microphone through the wire A communication unit
and a main unit are accommodated, and the microphone has directivity higher in sensitivity in
one direction than sensitivity in the other direction, and the one direction is disposed in the same
direction as the output direction of the speaker. .
[0011]
According to the present invention, it is possible to reduce only the sound component from the
speaker from the sound signal to be transmitted with a simple configuration using one type of
microphone, and the occurrence of howling can be reliably prevented.
[0012]
In the invention of claim 2, according to claim 1, the main body is electrically connected to at
least one system of wiring installed in a ceiling surface, a wall surface and a floor surface indoors
to transmit power and information signals. A second connection portion for electrically
connecting directly to the connection portion to receive power supply and exchanging
information signals with the first connection portion, the speaker via the second connection
portion Outputting the transmitted voice information, the microphone transmits the voice
information via the communication unit and the second connection unit, and the first connection
unit corresponds to the stylization of the form of the arrangement and shape of the first
03-05-2019
3
connection unit. It is characterized in that the form of the connection part 2 is fixed.
[0013]
According to the present invention, by electrically connecting the second connection portion to
the first connection portion, the communication apparatus can simultaneously secure the power
path and the information path, and there is no need to newly perform wiring work. It is possible
to obtain good installation.
[0014]
As described above, the present invention has the effect of reliably preventing the occurrence of
howling with a simple configuration.
[0015]
Hereinafter, embodiments of the present invention will be described based on the drawings.
[0016]
(First Embodiment) A call apparatus A according to the present embodiment is shown in FIGS. 1
to 3 and includes a speaker SP, a microphone M1, a call switch SW1, a communication unit 35a
and an echo cancellation unit 35b in a housing (main body) A1. 35c, an amplification unit 35d is
provided.
The audio signal transmitted from the communication device A installed in another room or the
like through the information line L2 is received by the communication unit 35a and amplified by
the amplification unit 35d through the echo cancellation unit 35b, and then the speaker Output
from SP.
In addition, by operating the call switch SW1, it becomes possible to make a call, and the voice
signal inputted from the microphone M1 passes through the echo cancellation unit 35c and is
then installed in another room or the like from the communication unit 35a via the information
line L2. It is transmitted to the communication device A that is being
That is, it functions as an interphone capable of interactive communication between rooms.
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4
The power supply of the communication device A may be supplied from an outlet provided near
the installation site, or may be supplied through the information line L2.
[0017]
Hereinafter, the configuration of the speaker SP will be described.
As shown in FIGS. 1 (a) and 1 (b), the speaker SP is formed of a cold-rolled steel plate (SPCC,
SPCEN), an iron-based material having a thickness of about 0.8 mm, such as electromagnetic soft
iron (SUY) A circular support 72 is extended outward from the open end of the yoke 70, and a
cylindrical support 72a is formed on the outer edge of the support 72. ing.
[0018]
A cylindrical permanent magnet 71 (for example, residual magnetic flux density 1.39T to 1.43T)
made of neodymium is disposed in the cylinder of the yoke 70, and a dome-shaped diaphragm
73 is provided on the end face of the support portion 72a. It is done.
That is, the edge on the outer peripheral side of the diaphragm 73 is fixed to the end face of the
support portion 72a.
[0019]
The vibration plate 73 is formed of a thermoplastic plastic (for example, a thickness of 12 μm to
35 μm) such as PET (PolyEthylene Terephtalate) or PEI (Polyetherimide).
A cylindrical bobbin 74 is fixed to the back of the diaphragm 73, and is formed by winding a
polyurethane copper wire (for example, φ 0.05 mm) around a kraft paper tube at the rear end of
the bobbin 74. A voice coil 75 is provided.
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The bobbin 74 and the voice coil 75 are provided such that the voice coil 75 is positioned at the
open end of the yoke 70, and freely move in the front-rear direction near the open end of the
yoke 70.
[0020]
When a voice signal is input to the polyurethane copper wire of the voice coil 75, an
electromagnetic force is generated in the voice coil 75 by the current of the voice signal and the
magnetic field of the permanent magnet 71. It is vibrated in the direction.
At this time, the diaphragm 73 emits a sound according to the audio signal.
That is, an electrodynamic speaker SP is configured (for example, a diameter of about 20 to 25
mm and a thickness of about 4.5 mm).
[0021]
Then, a rib 14 having an L-shaped cross section is annularly formed on the inside front of the
housing A1 facing the diaphragm 73 of the speaker SP, and from the outer peripheral end of the
circular support 72 of the speaker SP to the front side The end face of the protruding portion
72b abuts against the mounting portion 14a of the rib 14, the outer surface of the protruding
portion 72b is fitted to the inner surface of the protruding portion 14b of the rib 14, and the
diaphragm 73 is on the front surface of the housing A1. The speaker SP is positioned in a state of
facing from inside.
Further, by forming the outer edge portion of the support 72 in a circular shape and forming the
rib 14 in an annular shape, the speaker SP can be easily mounted on the housing A1.
[0022]
The speaker SP positioned by the rib 14 is attached to the front inner side of the housing A1 by
fastening a mounting screw (not shown) to the screw hole (not shown) inside the front surface of
the housing A1. .
03-05-2019
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[0023]
Next, the microphone M1 has a directivity in which the sensitivity in one direction is higher than
the sensitivity in the other direction, and a configuration example of the microphone M1 having
the directivity is shown below.
[0024]
The microphone M1 is a capacitor-type silicon microphone, and the acoustic signal-electric signal
conversion unit has the configuration shown in FIGS. 4 (a) and 4 (b).
A lower electrode 51 made of a silicon substrate formed on a substrate 57, a vibrating portion
53c (sound collecting surface), and support portions 53b extended at four places on the outer
periphery of the vibrating portion 53c, and made of polysilicon film The upper electrode 53 is
formed, the cavity 54a formed between the lower electrode 51 and the upper electrode 53, and
the insulating layer 52 made of a SiN film disposed between the lower electrode 51 and the
upper electrode 53 It is done.
The insulating layer 52 covers almost the entire surface of the lower electrode 51 except that the
insulating layer 52 has an opening substantially immediately below the vibrating portion 53 c of
the upper electrode 53 and a region for connecting a terminal to the lower electrode 51. Further,
a plurality of small holes 53a are formed in the vibrating portion 53c. Further, a terminal 55
made of an Au / TiW film connected to the lower electrode 51 and a terminal 55 made of an Au /
TiW film connected to the upper electrode 53 are formed on the supporting portion 53b in the
periphery.
[0025]
Then, when vibration corresponding to the sound is applied from the outside, the upper electrode
53 which is a vibrating film vibrates, and the distance to the lower electrode 51 changes. As a
result, the electrostatic capacitances of both the electrodes 51 and 53 change, the charge amount
changes, and a current flows from the both electrodes 51 and 53 in accordance with the change
of the charge amount.
03-05-2019
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[0026]
The current flowing from the two electrodes 51 and 53 is converted into a voltage by the circuit
shown in FIG. 5 and is output as an audio signal to the echo cancellation unit 35c. In FIG. 5, the
acoustic signal-electric signal conversion unit of the microphone M1 is indicated by Cm1. The
microphone M1 includes a constant voltage circuit K1 formed of a chip IC that converts
operating power + V (for example 5 V) to a constant voltage Vr (for example 12 V), and in the
microphone M1, resistance R11 and acoustic signal-electric signal conversion A constant voltage
Vr is applied to a series circuit with the portion Cm1, and a connection midpoint between the
resistor R11 and the acoustic signal-electric signal conversion portion Cm1 is connected to the
gate terminal of the junction type J-FET element S11 via a capacitor C11. Ru. The drain terminal
of the J-FET element S11 is connected to the operating power supply + V, and the source
terminal is connected to the ground via the resistor R12. Here, the J-FET element S11 is for
converting the electrical impedance, and the voltage at the source terminal of the J-FET element
S11 is output as an audio signal to the echo cancellation unit 35c.
[0027]
Then, as shown in FIG. 4B, the lower electrode 51 facing the approximate center of the vibrating
portion 53c and the insertion hole 56 are provided in the substrate 57, and the cavity 54a is
communicated with the outside. The acoustic signal (indirect sound) reaching from the rear) to
the front (upper electrode 53 side) and reaching the front of the vibrating portion 53c is an
acoustic signal (direct sound) from the rear via the insertion hole 56 to the rear surface of the
vibrating portion 53c Therefore, it is possible to obtain a single directivity with limited forward,
and it has a polar pattern P with high forward sensitivity as shown in FIG. At this time, an
obstacle is formed in the insertion hole 56, and the speed of the direct sound is delayed so as to
arrive simultaneously with the indirect sound.
[0028]
Alternatively, attach an elongated tube whose slit is cut on the side to the tip of the microphone
unit, and have an interference tube type that acoustically narrows the directivity, and two
unidirectional microphone units of positive phase and negative phase, You may use the
secondary sound pressure gradient type etc. which electrically narrow directivity.
[0029]
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By configuring the capacitor-type silicon microphone as described above, the microphone M1
has directivity higher in sensitivity in one direction (the vibrating portion 53c side) than in the
other direction.
[0030]
Then, the microphone M1 is positioned by the rectangular frame-shaped rib 16a in a state in
which the vibrating portion 53c faces the inside of the front surface of the case A1 inside the box
16 provided below the speaker SP inside the front surface of the case A1. Be done.
That is, the direction in which the sensitivity of the microphone M1 is high (the vibrating portion
53c side) is arranged in the same direction as the output direction of the speaker SP.
[0031]
Therefore, the microphone M1 has the vibrating portion 53c disposed forward and collects with
high sensitivity the sound emitted by the speaker H located in front of the communication device
A than the sound emitted by the speaker SP. The output of M1 is high in sensitivity and high in
amplitude for the voice emitted by the speaker H, but low in sensitivity and low in amplitude for
the voice emitted by the speaker SP. And the relative difference between the sound component
from the speaker SP that is desired to be reduced.
[0032]
That is, even when the voice from the speaker H and the voice from the speaker SP are
simultaneously generated, only the voice component from the speaker SP is reduced while
maintaining sufficient amplitude for the voice component from the speaker H. Therefore, it is
possible to prevent howling caused by the microphone M1 picking up the audio output of the
speaker SP.
[0033]
Furthermore, it is not necessary to provide two types of microphones to prevent howling as in
the prior art, and howling can be reliably prevented with a simple configuration in which one
type of microphone M1 is provided.
[0034]
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Further, a plurality of sound holes B are formed in the front of the housing A1 facing the speaker
SP and the microphone M1.
[0035]
Next, the audio signal output from the microphone M1 is output to the echo cancellation unit
35c, and echo cancellation units 35b and 35c (see FIG. 3) perform the following processing to
further prevent howling.
[0036]
First, the echo cancellation unit 35c takes in the output of the echo cancellation unit 35b as a
reference signal and performs an operation on the output of the microphone M1 to further
cancel the audio signal that has entered the microphone M1 from the speaker SP.
On the other hand, the echo cancellation unit 35b also takes in the output of the echo
cancellation unit 35c as a reference signal, and performs an operation on the output of the
communication unit 35a, whereby the voice signal from the speaker to the microphone at the
other end of the communication destination Cancel the
[0037]
Specifically, the echo cancellation units 35b and 35c are variable in a loop circuit including
speaker SP-microphone M1-echo cancellation unit 35c-communication unit 35a-echo
cancellation unit 35b-amplification unit 35d-speaker SP. By adjusting the amount of loss in the
loss means (not shown), howling is prevented as the loop gain becomes 1 or less.
Here, it is considered that the smaller one of the transmission signal and the reception signal is
not important, and the transmission loss of the variable loss circuit inserted in the transmission
path of the smaller signal level is increased.
[0038]
In addition, if the microphone M1 is disposed at a position facing the diaphragm 73 of the
speaker SP, downsizing of the communication device A can be achieved.
03-05-2019
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[0039]
The number of microphones M1 is not limited to one each, and the same processing may be
performed by arranging a plurality of microphones M1 according to the situation.
[0040]
(Second Embodiment) The telephone apparatus A of the present embodiment uses the
microphone M1 shown in FIG. 7, the same reference numerals are given to the same components
as those of the first embodiment, and the description will be omitted.
[0041]
The microphone M1 of the present embodiment accommodates the omnidirectional microphone
chip 50 not provided with the insertion hole 56 (see FIG. 4) in a cylindrical (cylindrical or square
cylindrical) package 58 whose one end is opened, The vibrating portion 53 c is directed to the
opening 58 a side of the package 58.
Then, the sound emitted from the opening 58a side (direction W1) of the package 58 reaches the
vibrating portion 53c through the opening 58a and is output as an audio signal.
On the other hand, most of the sound emitted from the side (W2 direction) of the package 58 is
blocked by the package 58, and the sound reaching from the opening 58a to the vibrating
portion 53c becomes very small.
Therefore, the sound emitted from the W1 direction is collected with high sensitivity than the
sound emitted from the W2 direction. The opening 58a of the package 58 faces the inside of the
front surface of the case A1 on the inside of the front surface of the case A1. It is positioned in
the
That is, the direction in which the sensitivity of the microphone M1 is high (the opening 58a side
of the package 58) is arranged in the same direction as the output direction of the speaker SP.
03-05-2019
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[0042]
Therefore, the microphone M1 picks up the voice emitted from the speaker H located in front of
the communication apparatus A with high sensitivity than the voice emitted from the speaker SP
in the W2 direction, so the output of the microphone M1 is the speaker Although the sensitivity
is high for the sound emitted by H and the amplitude is large, the sensitivity for the sound
emitted by the speaker SP is low and the amplitude is small, and the sound component from the
speaker H who wants to leave and the speaker SP that wants to reduce The relative difference
with the voice component of
[0043]
That is, even when the voice from the speaker H and the voice from the speaker SP are
simultaneously generated, only the voice component from the speaker SP is reduced while
maintaining sufficient amplitude for the voice component from the speaker H. Therefore, it is
possible to prevent howling caused by the microphone M1 picking up the audio output of the
speaker SP.
[0044]
Third Embodiment An example of a wiring system using the telephone apparatus of the present
invention will be described below.
[0045]
First, as shown in FIG. 8, one or a plurality of switch boxes 2 embedded in a suitable place in a
building are provided, and power lines L1 and information lines L2 preceded in the wall between
the switch boxes 2 are provided. In addition to feed and wiring, a power line L1 drawn into the
room via the master breaker MB and the branch breaker BB in the wiring board 1 is introduced
to the switch box 2 at the starting end, and a gateway to the external Internet network NT. An
information line L2 connected via a GW (router, built-in hub) is introduced.
Here, the switch box 2 is provided at a high position HP such as a ceiling surface in a room, the
one provided at a height position (middle position MP) recommended by a wall switch or the like,
and the vicinity of a foot (low position LP) And the ones provided in
[0046]
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12
These switch boxes 2 are, for example, standards corresponding to a series of mounting frames 4
(see FIG. 9) to which three embedded type wiring fixtures of one rectangular module size
standardized by JIS can be attached. The power line L1 and the information line L2 which are
sent from the wiring board 1 or the other switch box 2 from the top as shown in FIG. 17 are
introduced, and the other switch box 2 is A power line L1 and an information line L2 for leading
and wiring are derived.
The body of the gate device 3 to which the basic function module 8 is connected is attached to
each switch box 2 by means of the mounting frame 4 respectively.
[0047]
As shown in FIG. 9, the mounting frame 4 is provided with a window 4a for mounting a device at
the center, and the front of the device body to be mounted is fitted from the back to the window
4a. The apparatus main body is fixed by making the engagement parts provided on both sides of
the apparatus main body engage with the locking means provided on the side of the apparatus.
The instrument body is attached to the switch box 2 together with the mounting holes 4b
provided in the upper and lower frame pieces by fastening mounting screws (not shown) to the
screw holes (not shown) of the switch box 2.
In addition, when the switch box 2 is not used, when attaching to a wall panel having an opening,
the wall panel can be held by so-called clamps and attached, or can be attached using wood
screws.
[0048]
As shown in FIG. 10, the gate device 3 is provided with the connection terminals 5a and 5b of the
quick connection terminal structure and the connection terminals 5a 'and 5b' for feed wiring on
the back surface of the body, and corresponding power lines L1 and information lines It is
designed to connect L2.
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13
Further, a power path connection port 6A having a contact portion electrically connected to the
power line L1 sent to the front of the body, and an information path electrically connected to the
information line L2 sent. A modularized connection port 6 having a connection port 6B is
provided as shown in FIG.
[0049]
The connection ports 6A and 6B are standardized as a system, such as the distance between the
two and the arrangement of the internal contacts, the shape of the opening, etc. The front surface
of the switch box 2 is covered so as to cover the body front surface of the gate device 3. The
parts to be connected 7A and 7B of the connector 7 provided on the back of the basic functional
module 8 shown in FIG. 11 attached to the opening side are detachably coupled to the
connection ports 6A and 6B.
[0050]
The basic function module 8 constitutes a functional device together with the extended function
module 10 described later, and is a flat module body made of synthetic resin (noncrystalline
general-purpose plastic such as ABS) shown in FIGS. 11 and 12 (a) The circuit shown in FIG. 14 is
built in 8A, and by connecting the connected parts 7A and 7B of the connector 7 on the back to
the connection ports 6A and 6B of the gate device 3, the front opening of the switch box 2 is
obtained. Cover and a flange on the periphery is superimposed on the wall surface around the
front opening of the switch box 2. In this state, a mounting screw (not shown) is attached to the
mounting hole 80 drilled in the center of the upper and lower portions. The switch box 2 is
attached to the switch box 2 via the mounting frame 4 by inserting and inserting into the screw
holes 4 c provided in the upper and lower frames of the mounting frame 4.
[0051]
Further, in the front surface portion of the module main body 8A, at a position above or below
the opening position of the upper and lower mounting holes 80, as shown in FIG. A connecting
groove portion 81 formed of a groove 81b is formed to be divided into right and left by a
partition wall 82 at the center.
[0052]
One half of the connecting member 100 made of synthetic resin shown in FIG. 12 (b) is inserted
into the left or right connecting groove 81 of the dividing wall 82 to a position where it contacts
the dividing wall 82, and the other half of the connecting member 100 is shown in FIG. As shown
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14
in FIG. 13, the basic function module 8 and the extended function module 10 can be
mechanically coupled by fitting into the connecting groove 81 similarly provided on the extended
function module 10 side.
The coupling body 100 is provided with a groove 100a on the back surface in which the wide
groove 81a and the partition wall 81c for dividing the narrow groove 81b are fitted, and inserted
so as to straddle both the grooves 81a and 81b.
Then, in the basic function module 8, the cosmetic cover 8B is detachably attached from the front
surface side, and in the extended function module 10, the cover 83 is closed to fit over the
connection groove 81 of the both. It holds so that a certain connection object 100 may not drop
out, and maintains a connection state.
Thus, the connector 100 and the connecting groove 81 constitute a connecting means between
the basic function module 8 and the extended function module 10.
[0053]
In the wiring system of the present embodiment, a plurality of types of basic function modules 8
are prepared according to functions, and as shown in FIG. 14, the commercial function AC
supplied from the connected portion 7A as shown in FIG. , An AC / DC converter 21 for
converting the power supply to + V of the internal circuit composed of a stable DC voltage, and a
communication for transmitting and receiving an information signal transmitted bidirectionally
through the information line L2 connected via the connected portion 7B. Transmission unit 22,
power connectors 9A and 9A 'connected to commercial power AC via connected unit 7A,
communication connector connected to information line L2 via communication unit 22 and
connected unit 7B 9B and 9B 'and data is received from the information signal received by the
communication transmission unit 22 to perform processing, and the basic function module 8 to
another basic function module 8 or Transfer of data between the processing unit 23 that
performs data generation processing when sending data via the extended function module 10 or
via the information line L2, and the processing unit 23 via the I / O interface 24 The functional
unit 25 is operated and operated, and these units are supplied with operating power + V from the
AC / DC converter 21.
The configuration of this function unit 25 differs depending on the basic function module 8.
03-05-2019
15
[0054]
A male power connector 9A and an information connector 9B are provided on one side of the
module main body 8A of the basic function module 8 while a female power connector 9A 'and an
information connector 9B' are provided on the other side. There is. Then, by connecting the
contact pieces of the connected portion 7A internally to the contact pieces of the power supply
connectors 9A and 9A ′, the commercial power supply AC can be supplied even if the extended
function module 10 is connected in either left or right direction. To be able to Furthermore, by
connecting the input and output of the communication transmission unit 22 to the contact pieces
of the information connectors 9B and 9B ′, the information signal can be transmitted and
received regardless of whether the extended function module 10 is connected in either left or
right direction. . The power supply connectors 9A and 9A 'are offset to one end on both side
surfaces of the module body 8A, and the information connectors 9B and 9B' are offset to the
other end on both side surfaces of the module body 8A. Will be placed.
[0055]
In these power supply connectors 9A, 9A 'and information connectors 9B, 9B', the arrangement
of the contact portions inside, the shape of the opening portion, etc. are standardized as a system,
and further, the power connectors and information arranged on the same plane The spacing with
the connector is also standardized as a system, and power connectors 11A and 11A 'and
information connectors 11B and 11B' of the extended function module 10, which will be
described later, are detachably coupled.
[0056]
Next, in the wiring system according to the present embodiment, a plurality of types of extended
function modules 10 are prepared by the function of receiving power supply and operating, and
as shown in FIG. , 11A ′, the information connector 11B, 11B ′, and the power connector 11A,
11A ′, the commercial power supply AC is converted to the operating power supply + V of the
internal circuit composed of a stable DC voltage. AC / DC converter 31, communication
transmission unit 32 transmitting / receiving an information signal bidirectionally transmitted
via information connectors 11B and 11B ', and processing by taking data from the information
signal received by communication transmission unit 32 And from the extended function module
10 to the basic function module 8 or another extended function module 10, or information The
operation processing unit 33 performs data generation processing in the case of sending data via
03-05-2019
16
L2 and the function unit 35 that operates by exchanging data with the operation processing unit
33 via the I / O interface 34. These units are supplied with operating power + V from the AC / DC
converter 31.
The configuration of the functional unit 35 differs depending on the extended function module
10.
[0057]
The extended function module 10 basically has the height dimension of the module body 10A
standardized to the same height dimension as that of the basic function module 8 as shown in
FIG. Is standardized to an integral multiple of unit module dimensions.
[0058]
Also, one side of the both sides of the flat module main body 10A made of synthetic resin (noncrystalline general purpose plastic such as ABS) has a male power connector 11A and an
information connector 11B on the other side, and a female power connector on the other side. A
connector 11A 'and an information connector 11B' are provided.
The power supply connectors 11A and 11A 'are disposed to be biased to one end on both side
surfaces of the module body 10A, and the information connectors 11B and 11B' are biased to the
other end on both side surfaces of the module body 10A. Be placed. The power supply
connectors 11A and 11A 'and the information connectors 11B and 11B' are, like the power
supply connectors 9A and 9A 'and the information connectors 9B and 9B' of the basic function
module 8, an array of contact portions inside and an opening The shape of the part is
standardized as a system, and the space between the power connector and the information
connector arranged on the same plane is also standardized as a system. The power connectors
9A and 9A 'of the basic function module 8 are standardized. The power connectors 11A and 11A
'and the information connectors 11B and 11B' of the information connectors 9B and 9B 'or other
extended function modules 10 are detachably coupled.
[0059]
Specifically, the male power connector 11A and the information connector 11B are female type
of the power connector 9A 'of the basic function module 8, the connector 9B' of the information
connector, or the female type of the other extended function module 10. The power connector
03-05-2019
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11A 'and the information connector 11B' are connected, and the female power connector 11A
'and the information connector 11B' are the male power connector 9A of the basic function
module 8, the information connector 9B, or The male power supply connector 11A and the
information connector 11B of another extended function module 10 are connected.
[0060]
Then, the contact pieces of the power connectors 11A and 11A 'are connected to each other in
the module body 10A, and the power connector of one side is engaged with the power connector
of the basic function module 8 or the extended function module 10 adjacent to each other. When
the power supply side (power receiving port) is selected, the other power supply connector is the
power supply side (power supply port).
[0061]
Furthermore, by connecting the input and output of the communication transmission unit 32 to
the contact pieces of the information connectors (information transfer ports) 11B and 11B ', the
basic function module 8 and other extended function modules 10 are connected in either left or
right direction. Even if the information signal is exchanged, the information signal can be
exchanged with the basic function module 8 or the extended function module 10 adjacent to
both sides.
[0062]
Further, the shape of the module main body 10A of the extended function module 10 is formed
so that the back surface is a flat surface as shown in FIGS. 16 (b) and 16 (c) so as to be along the
wall surface.
At the upper and lower positions, a connecting groove 81 including a wide groove 81a and a
narrow groove 81b for inserting the connecting body 100 as in the basic functional module 8 is
provided, and a lid for opening and closing the connecting groove 81 When the connector body
100 is mounted or dismounted, the lid portion 83 is opened, and when the connector body 100
is held in the mounted state, the lid portion 83 is closed as described above (FIG. 16 (c
)reference).
[0063]
03-05-2019
18
Next, the communication device 10a of the present embodiment, which is one form of the
extended function module 10, will be described.
As shown in FIG. 18 and FIG. 19, like the extended function module 10, the communication
device 10a includes AC / DC converter 31, communication transmission unit 32, operation
processing unit 33, I / O interface 34, and function unit 35 as modules. The power supply
connector 11A and the information connector 11B are housed on one side of the both sides of
the module body 10A, and the female power connector 11A 'and the information connector 11B'
on the other side. It is provided.
[0064]
A plurality of sound holes 10B are formed in the front of the module main body 10A, and the call
switch SW1 and the alarm release switch SW2 are exposed on the front.
[0065]
In the module body 10A, as shown in FIG. 19, the speaker SP, the microphone M1, the call switch
SW1, the alarm release switch SW2, the communication unit 35a, the echo cancellation units 35b
and 35c, and the amplification unit 35d are provided as functional units 35. The arrangement of
the speaker SP and the microphone M1 is the same as that of the communication device A
according to the first embodiment, and the arrangement of the speaker SP and the microphone
M1 is also the same as that in the first embodiment. There is.
[0066]
Also, when an alarm signal is transmitted from the basic function module 8 or extended function
module 10 having a sensor function installed in the room in which the call apparatus 10a is
disposed, or from another room via the information line L2, Although an alarm sound is emitted
from the speaker SP, the alarm sound output can be canceled by operating the alarm release
switch SW2.
[0067]
Then, for example, as shown in FIG. 17, the basic function module 8b constituting a wall switch
for turning on / off the lighting apparatus is connected to the gate device 3 by exposing the
operation portion of the operation switch SW3 on the front surface of the cosmetic cover 8B. In
03-05-2019
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the right side of the basic function module 8b, the time display unit 35g is exposed on the front
surface of the module main body 10A to connect the extended function module 10b having a
clock function, and in the right side of the extended function module 10b By connecting, the
intercom function can be added to various functional devices such as a wall switch function and a
clock function.
Alternatively, a new extended function module 10b can be connected to the call device 10a
installed in advance.
[0068]
In this case, the power supply connector 11A 'and the information connector 11B' of the
extended function module 10b are installed on the ceiling surface, wall surface and floor surface
indoors and electrically connected to at least one system of wiring for transmitting power and
information signals. The power supply connector 11A and the information connector 11B of the
communication apparatus 10a correspond to the connected first connection section, receive
power supply from the first connection section, and transmit an information signal to the first
connection section. It corresponds to a second connection for delivering and receiving.
Furthermore, when an extended function module (not shown) having a predetermined function is
connected to the right side of the handset 10a, the power connector 11A 'and the information
connector 11B' of the handset 10a supply power to the extended function module, It corresponds
to a third connection unit for exchanging information signals with the extended function module.
[0069]
Therefore, the communication device 10a is connected to the power line L1 and the information
line L2 wired in advance in the same manner through the gate device 3, the basic function
module 8 and the other extended function module 10, thereby connecting the power path and
the information path. At the same time, there is no need to carry out wiring work anew and the
construction is excellent.
In addition, by using the same information line L2 as the basic function module 8 and the other
extended function modules 10, interlock control between the communication device 10a and the
03-05-2019
20
basic function module 8 and the other extended function modules 10 can be easily performed.
And it is excellent in extensibility.
[0070]
Next, the communication device 8a of the present embodiment, which is one form of the basic
function module 8, will be described.
As the functional unit 25 of the basic function module 8, as shown in FIGS. 20 and 21, the
speaker SP, the microphone M1, the call switch SW1, the alarm release switch SW2, the
communication unit 35a, the echo cancellation units 35b and 35c, and the amplification unit 35d
If provided, the communication device 8a having the same function as the above-described
communication device 10a is configured.
[0071]
A plurality of sound holes 8C are formed in the front of the module main body 8A, and the call
switch SW1 and the alarm release switch SW2 are exposed on the front.
[0072]
Then, the communication device 8a can be used alone as a basic function module, and further, if
necessary, the expansion function module 10 is connected to the side through the power
connectors 9A and 9A 'and the information connectors 9B and 9B'. do it.
In this case, at least one system of wiring which is installed on the ceiling surface, wall surface
and floor surface indoors and which transmits power and information signals, the connection
port 6 including the power path connection port 6A of the gate device 3 and the information
path connection port 6B. The connector 7 corresponding to the first connection portion
electrically connected to the connector 7 and including the connected portion 7A of the
communication apparatus 8a and the connected portion 7B receives power supply from the first
connection portion, and the first connection is established. It corresponds to a second connection
unit for exchanging information signals with the unit. Furthermore, if an extended function
module (not shown) having a predetermined function is connected to the right side or left side of
the handset 8a, the power connectors 9A, 9A 'and the information connectors 9B, 9B' of the
03-05-2019
21
handset 8a have extended functions. It corresponds to a third connection for supplying power to
the module and exchanging information signals with the extended function module.
[0073]
Therefore, by connecting the telephone set 8a to the power line L1 and the information line L2
wired in advance through the gate device 3, the power path and the information path can be
secured simultaneously, and wiring work needs to be newly performed. There is no, it is excellent
in construction. Further, by using the same information line L2 as the other basic function
module 8 and the extended function module 10, interlock control between the communication
device 8a and the other basic function module 8 and the extended function module 10 can be
easily performed. And it is excellent in extensibility.
[0074]
As the basic function module 8, there are one having an outlet function, one having a monitor
function, one having only a speaker function, and the like other than the above.
[0075]
In addition to the above, the extended function module 10 includes an air conditioner operation
controller, an air conditioner temperature setting device, an electric razor using an electric power
supply, an electric toothbrush, a charger such as a portable audio player, a lighting fixture and an
air conditioner. There are those with remote control infrared rays, etc.
In addition to audio information, there are also interphone masters and handsets of intercoms
that have the function of transmitting video captured by a surveillance camera etc.
[0076]
In addition, as a transmission method of the information signal of the wiring system using the
functional device of the present invention, any of baseband transmission or broadband
transmission may be adopted, and any protocol may be used, but an interphone using voice,
video, etc. Audio and video are mutually transmitted based on the H.-H. 232 packet between the
03-05-2019
22
master and slave units of the unit, and in the control system, one or more pairs can be operated
by operation data from the operation side. A routing control protocol corresponding to unicast or
broadcast which can correspond to 1 or 1 to N may be adopted, and the description is omitted
because it is not particularly limited. Also, the protocol used between the gate devices 3 and the
protocol used by the functional modules 8 and 10 connected to the gate device 3 may be made
different, and for example, the gate device 3 may perform protocol conversion.
[0077]
In order to use the basic functional module 8 constituting the functional device, first, the gate
device 3 is attached to the switch box 2 embedded in advance in the wall of the appropriate place
of the building via the mounting frame 4 and wired in advance. The power line L1 and the
information line L2 are connected. Thereafter, the corresponding connection portions 7A and 7B
of the connector 7 of the basic function module 8 are connected to the electric wire connection
ports 6A and 6B provided on the front surface of the gate device 3, and the basic function
module 8 is gated It is attached to the mounting frame 4 so as to cover the front face of 3. In this
mounted state, the basic function module 8 has a front surface projecting beyond the wall
surface, and both side surfaces are exposed to the indoor side.
[0078]
Then, the extended function module 10 causes one side to be interviewed and connected to one
of the exposed both side surfaces of the basic function module 8, and in this state the extended
function module 10 and the basic function module 8 are connected using the connector 100.
Mechanically connect. As a result, a functional device is configured by the basic function module
8 and the extended function module 10. At this time, the back surface of the extended function
module 10 is along the side wall of the switch box 2. For example, when the wall is attached to
the wall, the position of the back surface of the extended function module 10 is slightly shifted. It
can be disposed in a state in which the back surface is in close contact with the wall, and even if
an operating force or the like is applied from the front surface of the extended function module
10, the load applied to the connection portion can be reduced.
[0079]
Furthermore, when another extended function module 10 is connected to the extended function
03-05-2019
23
module 10 connected earlier, the opposite sides are interviewed and mechanically connected to
each other by the connecting body 100 in a state of being connected by a connector. Thus, as
shown in FIG. 17, the extended function modules 10 (10a, 10b. ) Can be connected sideways.
[0080]
In addition, since the basic function module 8 can connect the extended function modules 10 on
both sides, the extended function modules 10 may be connected in both directions of the basic
function module 8. Thus, after connecting the extended function module 10, the end cover 101 is
detachably attached to the side of the connection part of the extended function module 10 or the
basic function module 8 located at both ends, thereby the extended function module 10
Connection construction of will be completed. The end cover 101 is attached to both sides of the
basic function module 8 when the extended function module 9 is not connected to the basic
function module 8, that is, when it is left unused.
[0081]
And, the frame composed of the cover 83 provided on the upper side and the lower side of the
cosmetic cover 8B of the basic function module 8, the upper side and the lower side of the
extended function module 10 (including the call apparatus 10a) and the end cover 101 The
switch has a substantially similar shape to the standardized wide handle type switch plate (JIS
8316), and a sense of unity with the already installed wide handle type switch and the like can be
obtained. The shape of the frame is not limited to the shape of the wide handle type switch plate,
and if it is substantially the same shape as the plate used for the wiring connector for a square
continuous wire standardized by JIS, the existing outlet It is possible to obtain a sense of unity
with the embedded wiring device such as
[0082]
In addition, the dimensions of the basic function module 8 and the extended function module 10
in the width direction and height direction are the plates used in the wiring apparatus for large
square connection standardized in JIS, with the end cover 101 attached on both sides. Since they
are formed to have the same dimensions, and the thickness dimensions of the basic function
module 8 and the extension function module 10 are respectively formed to the same dimensions,
another basic function module 8 and the extension function module 10 may be installed after
installation. It can be easily replaced.
03-05-2019
24
[0083]
Further, the number of extension function modules 10 that can be connected to the basic
function module 8 is limited by the magnitude of the load applied to the connection site, and is
also limited by the power supply capacity of the basic function module 8.
[0084]
Here, for example, as shown in FIG. 8, a gate device of the switch box 2 provided at a high
position HP such as a ceiling surface of a room among the one or more switch boxes 2 embedded
in an appropriate place in the building. A basic function module 8 having a hooking blade
connection portion 60 is connected to 3, and the basic function module 8 is connected to an
extended function module 9 provided with a human sensor 61 or the like, or the gate device 3 A
basic functional module 8c having only the speaker SP and having a function for BGM, etc. is
connected.
[0085]
A basic function module 8b constituting a wall switch for turning on / off a lighting fixture on the
gate device 3 of the switch box 2 provided at a height position (middle position MP) such as a
wall surface of a room recommended for a wall switch etc. , An extension function module 10b
having a clock function, and a calling device 10a are connected.
Alternatively, a basic functional module 8 provided with a monitoring device 64 is connected to
the gate device 3 of the switch box 2 at the middle position MP.
[0086]
Further, a basic functional module 8 having a power outlet 62 is connected to the gate device 3
of the switch box 2 provided near the foot including the floor (low position LP), and an extended
functional module constituting the foot lamp 63 10 are connected, or a basic functional module
8c having only the speaker SP and having a function for BGM etc. is connected to the gate
apparatus 3.
[0087]
As described above, after the installation and construction are completed and the system is
completed, information signals are exchanged between the corresponding basic function module
03-05-2019
25
8 and the extended function module 10, and in the case of the communication devices 8a and
10a, other rooms The interphone system is configured between the telephone set 8a and 10a to
enable communication between the two and to perform alarm notification and the like.
[0088]
Further, in the present embodiment, no special construction is required for addition or deletion
of the extended function module 10 or the basic function module 8, and therefore, simply by
connecting the extended function module 10 to the basic function module 8 according to the
general user's preference, Scalability is secured.
[0089]
Although the gate device 3 used in the present embodiment is attached to the switch box 2 by
the attachment frame 4, it may be directly attached to the back wall of the switch box 2 and the
basic function module 8 may be attached to the switch box 2.
[0090]
Fourth Embodiment In the third embodiment, the power path and the information path by
connector connection are provided between the gate device 3, the basic function module 8
(including the call device 8a), and the extended function module 10 (including the call device
10a). Is being built.
[0091]
However, in the present embodiment, instead of the connector connection, power is supplied
contactlessly by magnetic coupling to configure a power path.
Specifically, each of the gate device 3, the basic function module 8, and the extension function
module 10 has a configuration in which a coil is wound around a core instead of a connector, and
the cores are magnetically coupled to each other to cause low voltage to the opposing coil. AC
power supply voltage is induced to supply power.
Here, by applying an AC power supply having a frequency higher than that of the commercial
frequency to the coil, it is possible to miniaturize the transformer configuration by the
electromagnetic coupling unit.
03-05-2019
26
[0092]
Furthermore, in the gate device 3, the basic function module 8, and the extended function
module 10, the information signal is sent out through E / O conversion, and the information
signal is taken in through O / E conversion, whereby the information signal composed of the light
signal is emitted By using the light receiving element, an information path can be established
which can be transmitted in both directions without contact.
[0093]
(Fifth Embodiment) In the above third and fourth embodiments, sending of power (power) and
delivery of information signal are performed in separate systems, but in the present embodiment,
the transmission method of information signal of the whole system is a power line carrier. By
doing this, sharing of the power path and the information path is achieved.
[0094]
That is, the preceding wiring in each switch box 2 is only the power line L1, and correspondingly
the connection port of the gate device 3 is only the power path connection port 6A of the
connection port shown in FIG. The connector 7 (including the communication device 8a) also has
only the connection port 7A corresponding to the power path connection port 6A, and the
information connectors 9B and 9B 'are also omitted.
Further, the information connectors 11B and 11B 'are also omitted in the extended function
module 10 (including the call apparatus 10a).
[0095]
Then, as shown in FIG. 22, in the telephone apparatus 10a, a PLC modem unit 36 for receiving an
information signal by power line carrier and transmitting an information signal, and an
information signal received via the PLC modem unit 36. Provided between the functional unit 35,
the functional unit 35, and the arithmetic processing unit 33, which performs data processing of
the above and generates data of an information signal to be transmitted by power line
conveyance via the PLC modem unit 36. An I / O interface 34 is provided.
03-05-2019
27
The arithmetic processing unit 33, the I / O interface 34, and the function unit 35 have the same
functions as those in the third and fourth embodiments.
[0096]
Furthermore, the same configuration as that of the PLC modem unit 36 is also provided to the
gate device 3, the basic function module 8, and the extended function module 10.
[0097]
The modulation method of power line carrier employed in the present embodiment may be any
of various methods such as a wide band spread spectrum method, a multicarrier method, and an
OFDM method, and therefore, will not be particularly described here.
[0098]
In the present embodiment, since the power path and the information path are common, the
connection port of the gate device 3 is only the power path connection port 6A, and the
connector 7 of the basic function module 8 also has one connected portion 7A. Since the
connector 11 of the extended function module 10 is also only one connected portion 11A, the
space of the configuration around the connection is reduced.
In addition, the internal circuits of the basic function module 8 and the extended function module
10 do not require the configuration of the communication transmission unit and the information
connector, so that the arrangement space in the thin module bodies 8A and 10A can be spared.
[0099]
In addition, by incorporating the PLC modem unit in the lighting fixtures and air conditioning
equipment, direct information signals can be sent to the lighting fixtures and air conditioning
equipment, so it is necessary to provide a functional module with an infrared remote control
signal transmission function for remote control. There is no
[0100]
03-05-2019
28
(A) and (b) It is sectional drawing which shows the attachment state of the speaker of the
communication apparatus of Embodiment 1, and a microphone.
FIG.
It is a circuit block diagram same as the above.
(A) (b) It is a block diagram of the acoustic signal-electric signal conversion part of the
microphone same as the above.
It is a circuit block diagram of the microphone same as the above.
It is a figure which shows the polar pattern of the microphone same as the above.
7 is a configuration diagram of a microphone of Embodiment 2. FIG.
FIG. 7 is a configuration diagram of a wiring system using the communication device of the third
embodiment. It is a front view of the state which attached the same gate apparatus to the
attachment frame. It is a perspective view which shows the wiring form to the gate apparatus
same as the above. It is a perspective view of the state which removed the basic function module
same as the above from the switch box. (A) is a perspective view of the state which removed the
cosmetic cover of the basic functional module same as the above, (b) is a perspective view of a
connection body. It is explanatory drawing of the connection structure of the basic function
module same as the above and an extension module. It is a circuit block diagram of the basic
functional module same as the above. It is a circuit block diagram of the extended function
module same as the above. The extended function module same as the above is shown, (a) is a
front view, (b) is a side view, (c) is a side view in a state in which the cover is opened and the
coupling body is removed. It is the partially broken perspective view which shows the installation
state of the wiring system using the telephone apparatus (extended function module) same as the
above. It is a perspective view which shows a telephone apparatus (extended function module)
same as the above. It is a circuit block diagram of the communication apparatus same as the
above (extended function module). It is a circuit block diagram of the function part of the
telephone apparatus (basic function module) same as the above. It is a perspective view which
shows the installation state of the wiring system using the telephone apparatus (basic function
03-05-2019
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module) same as the above. FIG. 10 is a circuit configuration diagram of the communication
device of the fifth embodiment.
Explanation of sign
[0101]
A Intercom A1 Case SP Speaker M1 Microphone 35a Communication unit 53c Vibration part
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