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JPH11113082

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DESCRIPTION JPH11113082
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
diver's underwater communication device for transmitting a tone or sound in water such as a
lake or sea.
[0002]
[Background Art] Conventionally, as a means for conveying information in the water when a
person stays in water by breathing air sent from a tank filled with compressed air. There is a
submersible whistle which makes a sound by the air sent from the tank by the compressed air.
[0003]
However, the above-mentioned underwater whistle has a disadvantage that it can not be used
complicatedly because it uses the air of the tank necessary for breathing.
In addition, when sand enters the underwater whistle, no sound is produced, so that the
practicality is poor.
[0004]
In addition to the above-mentioned underwater whistle, there is also a device that transmits
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1
audio signals into the water as sound waves from an underwater speaker. However, if the water
depth becomes deeper than 10 m, transmission of acoustic signals in the audio region becomes
very difficult due to the influence of water pressure. Because the receiving side can not obtain a
sufficient sound pressure, there is a problem that it is difficult to hear the sound.
[0005]
Therefore, an object of the present invention is to provide a diver's underwater communication
device capable of transmitting a signal sound and voice representing information in water, and
capable of obtaining a sufficient sound pressure even when the water depth is 10 m or less.
[0006]
[Means for Solving the Problems] In order to achieve the above object, the underwater
communication device for a diver according to claim 1 outputs a signal sound representing
information as an electric signal and which information is to be output A selection unit for
outputting a signal representing the signal sound to the signal sound generation unit, a sealed
container having an elastically deformable acoustic diaphragm, and an electric that is provided in
the sealed container and represents the signal sound from the signal sound generation unit An
electrical signal-mechanical vibration signal converter that converts a signal into a mechanical
vibration signal and vibrates the acoustic diaphragm and transmits it as a sound wave, and is
provided in the sealed container and sealed between the acoustic diaphragm It is characterized in
that it comprises a resiliently deformable support plate which forms a space and supports the
electrical signal-mechanical vibration signal converter.
[0007]
According to the underwater diver communication device for a diver of claim 1, when
transmitting the signal sound representing the information selected by the selection unit, the
signal representing the information to be output from the selection unit is transmitted. The sound
generation unit outputs, for example, a signal sound with a single frequency as an electric signal,
or outputs a sound in which two or more signal sounds having different frequencies are
combined as an electric signal.
Then, the electric signal-mechanical vibration signal conversion unit provided in the sealed
container converts the electric signal from the signal sound generation unit into a mechanical
vibration signal to vibrate the elastically deformable acoustic diaphragm. Tell as a sound wave.
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Then, information of various contents is transmitted by transmitting the Morse signal etc. which
turned on / off single frequency signal sound into water, or transmitting the signal sound in
which a plurality of signal sounds of different frequencies are combined. Can communicate.
At this time, by adjusting the thickness of the acoustic diaphragm to set the natural vibration
frequency of the acoustic diaphragm to a frequency in the middle range (for example, 3.4 khz), a
sufficient sound pressure can be obtained in the middle range. Further, as the water depth
increases, the water pressure applied to the acoustic diaphragm increases, and the acoustic
diaphragm is elastically deformed by the water pressure and pushed inward. Then, for example,
the air filled in the sealed space between the acoustic diaphragm and the support plate is
compressed, and the compressed air elastically deforms the support plate inward and bends the
electric plate to vibrate the acoustic diaphragm. Since the mechanical vibration signal converter
is not affected by water pressure, it withstands water pressure of 10 m or less. Therefore, it is
possible to transmit a signal sound representing information in water without using air for
breathing as in the underwater whistle, and a sufficient sound pressure can be obtained even if
the water depth is 10 m or less.
[0008]
Also, the underwater diver's communication device according to claim 2 comprises a voice
message generation unit for outputting a pre-recorded voice message or a synthesized voice
message as an electrical signal, and a signal representing which voice message is to be output. A
sealed container having a selection unit for outputting to a message generation unit, an
acoustically deformable elastic diaphragm, and a mechanical vibration signal provided in the
sealed container and representing the voice message from the voice message generation unit And
an acoustic signal conversion unit provided in the sealed container to form a sealed space
between the acoustic vibration plate and the electric vibration signal conversion unit for
converting the acoustic vibration plate and transmitting it as a sound wave. An elastically
deformable support plate for supporting the electrical signal-mechanical vibration signal
converter is provided.
[0009]
According to the underwater diver according to claim 2, when transmitting the voice message
selected by the selection unit, the voice message generation is performed based on a signal
indicating which voice message is to be output from the selection unit. The unit outputs the
selected voice message as an electrical signal, and the electrical signal-mechanical vibration
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3
signal conversion unit provided in the sealed container converts the electrical signal from the
signal sound generation unit into a mechanical vibration signal. Then, the elastically deformable
acoustic diaphragm is vibrated and transmitted as a sound wave.
Then, by transmitting the selected voice message underwater, information of various contents
can be conveyed. At this time, by adjusting the thickness of the acoustic diaphragm to set the
natural vibration frequency of the acoustic diaphragm to a frequency in the middle range (for
example, 3.4 khz), a sufficient sound pressure can be obtained in the middle range. Further, as
the water depth increases, the water pressure applied to the acoustic diaphragm increases, and
the acoustic diaphragm is elastically deformed by the water pressure and pushed inward. Then,
for example, the air filled in the sealed space between the acoustic diaphragm and the support
plate is compressed, and the compressed air elastically deforms the support plate inward and
bends the electric plate to vibrate the acoustic diaphragm. Since the mechanical vibration signal
converter is not affected by water pressure, it withstands water pressure of 10 m or less.
Therefore, an audio message can be transmitted underwater, and sufficient sound pressure can
be obtained even if the water depth is 10 m or less.
[0010]
According to a third aspect of the present invention, in the submersible communication device
for a diver according to the second aspect, the microphone for converting a sound into an
electric signal is provided, and the selection unit is a sound represented by the electric signal
from the microphone. , And outputs a signal instructing the voice message generation unit to
output an electrical signal representing a voice message having a content corresponding to the
identified voice.
[0011]
According to the underwater communication device for divers of the third aspect, for example,
when only the microphone is installed on the ship and connected with the main body and a cable,
the voice signal is converted by the microphone when calling from an underwater person on the
ship from the ship Based on the determined electrical signal, the selection unit identifies the
voice represented by the electrical signal, selects the voice message of the content corresponding
to the identified voice, and selects the electrical signal representing the selected voice message. A
signal instructing the voice message generator to output is output.
According to the command signal, the voice message generator outputs an electrical signal
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representing the voice message. Therefore, the voice of the speaker is not transmitted as a sound
wave in the water as it is, but a voice message corresponding to the word of the speaker is
transmitted in the water as a prerecorded voice message or a synthesized voice message.
[0012]
According to a fourth aspect of the present invention, in the submersible communication device
for a diver according to the second aspect, the ultrasonic wave receiving unit for converting an
ultrasonic signal into an electric signal is provided, and the selecting unit is the ultrasonic wave
receiving unit. To identify the information represented by the electrical signal from the device,
and outputting a signal instructing the voice message generation unit to output an electrical
signal representing a voice message of the content according to the identified information. There
is.
[0013]
According to the underwater communication device for a diver of the fourth aspect, for example,
information is transmitted from an upper surface of the ship to a person in the water as an
ultrasonic signal, and the ultrasonic wave receiving unit receives an ultrasonic wave propagating
in the water. Convert sound signals into electrical signals.
The selection unit identifies information represented by the electric signal from the ultrasonic
wave reception unit, selects a voice message of the content corresponding to the ultrasonic wave
signal, and outputs an electric signal representing the selected voice message. Outputs a signal
instructing the voice message generation unit. According to the command signal, an electrical
signal representing a voice message is output from the voice message generator. Therefore, the
voice of the speaker is not transmitted as a sound wave into the water as it is, but the sound of
the content corresponding to the transmitted ultrasonic signal is transmitted into the water as a
prerecorded voice or a synthesized voice.
[0014]
According to a fifth aspect of the present invention, in the submersible communication device for
a diver according to the second aspect, at least one of the sensors for detecting the air pressure,
the water depth or the temperature of the tank for aqua rung is provided. The unit is
characterized by outputting a signal instructing the voice message generation unit to output an
electrical signal representing a voice message of the content according to the detection signal
from the sensor.
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[0015]
According to the underwater communication device for a diver of the fifth aspect, at least one of
the air pressure, the water depth, or the temperature of the tank for aqualung filled with
compressed air is detected by a sensor in scuba diving or the like.
Based on the detection signal from the sensor, the voice signal corresponding to the content of
the detection signal (for example, "I'm now, tank pressure 160, water depth 15m, diving time 25
minutes") to output an electrical signal representing The selection unit outputs a signal
instructing the voice message generation unit. The voice message generation unit outputs an
electrical signal representing a voice message, and the electrical signal-mechanical vibration
signal conversion unit converts the electrical signal from the signal sound generation unit into a
mechanical vibration signal to generate the acoustic signal. The diaphragm is vibrated to transmit
a voice message as a sound wave. Therefore, it is possible to know at least one of air pressure,
water depth and temperature in the tank during diving without looking at the meter display even
in dark water, and be aware by notifying the situation by voice at regular intervals. Can be
Further, for example, when the remaining amount of air becomes less than a predetermined
amount, that is, when the air pressure becomes less than a predetermined amount, safety can be
improved by notifying by voice.
[0016]
According to a sixth aspect of the present invention, in the submersible communication device
for a diver according to the second aspect, the voice message generation unit records a voice
message as an electric signal, and the voice message recording unit And an audio message
reproducing unit for reproducing an audio message recorded by the above as an electric signal.
[0017]
According to the underwater communication device for divers of the sixth aspect, the voice
message generation unit records the necessary voice message in advance by the voice message
recording unit and reproduces the voice message recorded by the voice message reproduction
unit. Therefore, necessary voice messages can be recorded and reproduced on the spot as
needed.
[0018]
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According to a seventh aspect of the present invention, in the submersible communication device
for a diver according to the first or second aspect, at least a part of the acoustic diaphragm is
light transmissive and provided in the sealed container. A light source is provided which emits
light outward through the light transmitting portion of the acoustic diaphragm.
[0019]
According to the underwater communication device for a diver of the seventh aspect, the
underwater communication device for a diver can also be used as a lighting fixture by irradiation
of light from the light source.
When a battery is used as the power source of the underwater diver's underwater
communication device, the battery life can be determined by the degree of brightness of the light
source by lighting the light source with the battery.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION A diver's underwater communication device
according to the present invention will be described in detail below by way of embodiments
shown in the drawings.
[0021]
(First Embodiment) FIG. 1 is a block diagram of a diver's underwater communication device
according to a first embodiment of the present invention, wherein 1 is a control unit for
outputting an address signal when the switch SW1 is turned on, and 2 is from the control unit 1
described above. A digital signal generation unit for generating a digital signal representing a
signal sound based on the address signal of 3; a switching unit as a selection unit for outputting a
switching signal to the control unit 1 according to a switching switch (not shown); A D / A (digital
/ analog) converter which receives a digital signal from the unit 2 and converts the digital signal
into an analog signal, and 5 indicates the D / A converted analog signal from the D / A converter
4 A power amplifier for amplifying, 6 converts a mechanical vibration signal into an electrical
signal which is an analog signal amplified by the power amplifier 5 to convert the mechanical
vibration signal. A speaker unit for outputting a sound wave signal into the water.
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The digital signal generator 2, the D / A converter 4 and the power amplifier 5 constitute a signal
sound generator.
[0022]
The digital signal generation unit 2 stores a plurality of tables of digital data (for example, 4-bit
configuration) of signal waveforms of a single frequency, and digital data is sequentially output
from the table by an address signal from the control unit 1 Ru.
Then, the switching unit 3 changes the address signal output from the control unit 1 into an
address signal corresponding to another table.
Then, the digital signal generator 2 sequentially outputs digital data as digital signals from a
table of digital data of signal waveforms of different frequencies.
[0023]
7 (A) and 7 (B) show a front view and a cross-sectional view seen from the side of the abovementioned underwater communication device for divers. This underwater communication device
for divers includes a front case 71 comprising a cylindrical portion 71a and a convexly shaped
acoustic diaphragm 71b which can be elastically deformed outwardly at one end of the
cylindrical portion 71a, and the other end of the front case 71. And a cylindrical bottomed rear
case 81 screwed with one end. The material of the acoustic diaphragm 71b may be aluminum,
stainless steel, polypropylene or any other plastic depending on the frequency used. Further, the
front case 71 and the rear case 81 are sealed by an O-ring 83, and the front case 71 and the rear
case 81 constitute an airtight container. A cylindrical aluminum tube 76, one end of which is
fixed at the inner side of the center of the acoustic diaphragm 71b, and a voice coil 77 wound
around the other end of the aluminum tube 76 are provided. A donut plate-like elastically
deformable support plate 72 provided with a hole 72a through which the other end side of the
voice coil 77 penetrates is fixed inside the front case 71 at a predetermined distance from the
acoustic diaphragm 71b. There is. One end is fixed to one end of the support plate 72 on the
opposite side to the acoustic diaphragm 71b, and a donut plate-like first pole piece 73 provided
with a hole 73a in the approximate center, and the first pole piece 72 Disc-shaped permanent
magnet 74 whose end is fixed to the other end, and disc-shaped one having a cylindrical portion
75a which is fixed to the other end of the permanent magnet 73 and extends from the center to
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the acoustic diaphragm 71b side A second pole piece 75 and a control substrate 80 attached to
the other end of the second pole piece 75 are provided. A magnetic flux generated from the
permanent magnet 74 forms a closed magnetic path so as to intersect the voice coil 77 via the
first pole piece 73 and the second pole piece 75. Further, the bottomed rear case 81 has a
battery 82 attached inside and a push button switch SW1.
[0024]
The first pole piece 73, the permanent magnet 74, the second pole piece 75, and the voice coil
77 constitute an electric signal-mechanical vibration signal converter, and the electric signalmechanical vibration signal converter is a support plate 72. Supported by The control board 80
is composed of a control unit 1, a digital signal generation unit 2, a switching unit 3, a D / A
converter 4 and a power amplifier 5 shown in FIG. The electric signal amplified by the power
amplifier 5 is input to the voice coil 77.
[0025]
In the underwater divers for divers having the above-described configuration, the loudspeaker
unit 6 generates mechanical vibration signals from the electric signal representing the signal
sound of the single frequency output from the digital signal generator 2, the D / A converter 4
and the power amplifier 5. And the elastically deformable acoustic diaphragm 71b is vibrated
and transmitted as a sound wave into water. Then, by turning on and off single frequency signal
sound and transmitting "pee, pee", "poe, poe" or the like or transmitting a morse signal or the
like, information of various contents can be transmitted. Further, by adjusting the thickness of
the acoustic diaphragm 71b to make the natural vibration frequency of the acoustic diaphragm
71b particularly a frequency in the middle range (for example, 3.4 khz), sufficient sound pressure
can be obtained in the middle range .
[0026]
Further, as the water depth increases, the water pressure applied to the acoustic diaphragm 71b
increases, and the acoustic diaphragm 71b is elastically deformed by the water pressure and is
pushed inward. Then, for example, the air filled in the sealed space between the acoustic
diaphragm 71b and the support plate 72 is compressed, and the compressed air elastically
deforms the support plate 72 inwards and curves it, thereby vibrating the acoustic diaphragm
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71b. Electric signal-mechanical vibration signal converter is not affected by water pressure, so it
withstands water pressure of 10 m or less in water depth.
[0027]
Also, when the acoustic diaphragm 71b of the underwater diver for divers has a diameter of 100
mm or more, it is necessary to take measures against water pressure and heat (heat generation of
voice coil), but when the diameter is 50 mm or less, there are few internal air layers. Therefore,
self-heat dissipation becomes possible, and the resonance point becomes high, and an arbitrary
resonance peak can be generated particularly at 300 Hz to 5 kHz. For this reason, even at a
water depth of 50 m, it became possible to hear within a radius of 10 m. In addition, for singlefrequency calling signals, a reach of 30 m or more was obtained in water. Further, by integrally
molding the acoustic diaphragm and the front case, the degree of sealing can be easily
maintained. Furthermore, when large input power is required, it is also possible to radiate heat
directly with a single voice coil formed by cylindrical winding bonding.
[0028]
Therefore, it is possible to transmit the signal sound in water without using air for breathing as in
the underwater whistle, and a sufficient sound pressure can be obtained even if the water depth
is 10 m or less.
[0029]
The underwater communication device for divers according to the first embodiment is also
applicable to communication between the ship and the water.
[0030]
Second Embodiment FIG. 2 is a block diagram of a diver's underwater communication device
according to a second embodiment of the present invention.
The underwater diver's underwater communication device has the same configuration as that of
the first embodiment shown in FIG. 7 (b) except for the control board 80.
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[0031]
In FIG. 2, 11 is a control unit that outputs an address signal when the switch SW2 is turned on,
12 is a digital signal generation unit that generates a digital signal representing a signal sound
based on the address signal from the control unit 11, and 13 is an illustration. A switching unit
as a selection unit for outputting a switching signal to the control unit 11 according to a nonoperational switch, 14 receives a digital signal from the digital signal generation unit 12 and
converts the digital signal into an analog signal / Analog) converter, 15 is a power amplifier for
amplifying the D / A converted analog signal from the D / A converter 14, and 16 is a mechanical
signal for the electrical signal which is the analog signal amplified by the power amplifier 15. It is
a speaker part which converts a vibration signal and outputs the mechanical vibration signal into
water.
The digital signal generator 12, the D / A converter 14 and the power amplifier 15 constitute a
signal sound generator.
[0032]
The above-mentioned underwater communication device for divers has the same configuration as
the underwater communication device for divers of the first embodiment except for the digital
signal generator 12. The difference between the digital signal generation unit 12 and the digital
signal generation unit 2 of the first embodiment is that the digital signal generation unit 12 has a
table of digital data in which a plurality of signal sounds having different frequencies are
combined.
[0033]
In the underwater diver for divers configured as described above, an electric signal representing
a signal sound obtained by combining two or more signal sounds of different frequencies output
by the digital signal generator 12, the D / A converter 14 and the power amplifier 15 is It is
converted into a mechanical vibration signal by the speaker unit 6, and the elastically deformable
acoustic diaphragm 71b is vibrated and transmitted as a sound wave in water. In this way,
information of various contents can be conveyed by a combination of a plurality of signal sounds
of different frequencies (for example, "Pipo, Pipo", "Piper, Piper" or "Piper, Puppy").
04-05-2019
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[0034]
Third Embodiment FIG. 3 is a block diagram of the underwater diver according to a third
embodiment of the present invention, wherein 21 is a microphone, and 22 is a signal from the
microphone 21 and receives a specific frequency band (for example, A filter that passes only the
voice band), an ultrasonic wave receiving microphone 23 that converts an ultrasonic wave signal
into an electric signal, and an electric wave 24 that receives the electric signal from the
ultrasonic wave receiving microphone 23 and sets the electric signal to a required level. An
ultrasonic signal amplifier for amplification, 25 is a signal processing unit as a selection unit for
processing each signal from the filter 22 and the ultrasonic signal amplifier 24, and 26 is a
control signal received from the signal processing unit 25 and registered in advance. A voice
synthesis unit for outputting an electrical signal representing the synthesized voice message, and
27 an electric signal for amplifying the electrical signal representing the synthesized voice
message from the voice synthesis unit 26. Amplifier, 28 is converted into a mechanical vibration
signal the electrical signal amplified by the power amplifier 27, a speaker unit for outputting the
mechanical vibration signal in the water. The signal processing unit 25 comprises a
microcomputer and an input / output circuit.
[0035]
In this divers underwater communication device, only one of the combination of the microphone
21 and the filter 22 or the combination of the ultrasonic wave reception microphone 23 and the
ultrasonic wave signal amplifier 24 may be used. The ultrasonic wave receiving microphone 23
and the ultrasonic wave signal amplifier 24 constitute an ultrasonic wave receiving unit, and the
speech synthesizing unit 26 and the power amplification unit 27 constitute a speech message
generating unit. The speaker unit 28 has the same configuration as that of the underwater diver's
underwater communication device shown in FIGS. 7A and 7B except for the control board 80.
[0036]
In the underwater divers for divers having the above-described configuration, the speaker unit 6
converts the electrical signal representing the synthesized voice message (for example, "I
communicate from the water") output by the voice message generation unit 26 and the power
amplifier 27 into a mechanical vibration signal. It transforms and vibrates the elastically
deformable acoustic diaphragm (not shown) into water. Thus, by transmitting a synthetic voice
04-05-2019
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message, information of various contents can be transmitted. Therefore, similar to the operation
and effect of the first embodiment, the voice message can be transmitted in water, and sufficient
sound pressure can be obtained even if the water depth is 10 m or less. In addition, it is possible
to clearly hear in a wide range by creating a synthetic voice message so that it can be clearly
heard in water. The voice message generation unit may output an electrical signal representing a
voice message recorded in advance, not a synthetic voice message.
[0037]
Also, for example, when a person on the water is called from the ship by the microphone 21, the
signal processing unit 25 identifies the sound to which the call is made, selects the voice message
of the content corresponding to the identified sound, and is selected. A signal instructing the
voice synthesis unit 26 to output an electrical signal representing a voice message is output.
Further, information is transmitted from the ship to an underwater person by an ultrasonic
signal, the signal processing unit 25 identifies the information represented by the transmitted
ultrasonic signal, and selects a voice message of the content corresponding to the information.
And outputs a signal instructing the voice synthesis unit 26 to output an electrical signal
representing the selected voice message. Therefore, the voice of the speaker is not transmitted as
a sound wave in the water as it is, but a synthesized voice message of the content corresponding
to the information of the speaker's speech or the information represented by the ultrasonic signal
is transmitted in the water.
[0038]
(Fourth Embodiment) FIG. 4 is a block diagram of a submersible communication device for divers
according to a fourth embodiment of the present invention, 31 is a pressure gauge for detecting
the pressure in a tank for aqua rung (not shown), 32 is a pressure gauge A pressure signal
amplifier for amplifying the pressure signal detected by the pressure gauge 31, a depth meter for
detecting the water depth 33, a depth signal amplifier for amplifying the water depth signal
detected by the depth meter 33, and a temperature 35 The temperature signal amplifier 36
amplifies the temperature signal detected by the thermometer 35. The control signal 37 is a
control signal based on the signals from the pressure signal amplifier 32, the depth signal
amplifier 34, and the temperature signal amplifier 36. A signal processing unit as a selection unit
for outputting the voice signal, a speech synthesis unit for synthesizing a voice message in
response to the control signal from the signal processing unit 37, and a speech synthesis unit 39
for synthesizing the speech signal. A power amplifier for amplifying an electric signal
representing a voice message, and a speaker unit 40 for converting a mechanical vibration signal
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of the amplified electric signal from the power amplifier 39 and outputting the mechanical
vibration signal into water . The signal processing unit 37 comprises a microcomputer and an
input / output circuit. The voice synthesis unit 38 and the power amplification unit 39 constitute
a voice message generation unit. The speaker unit 40 has the same configuration as the
underwater diver's communication device shown in FIGS. 7 (A) and 7 (B) except for the control
board 80.
[0039]
In the diver's underwater communication device of the above configuration, the air pressure, the
water depth and the temperature of the tank for aqualunge (not shown) filled with compressed
air are respectively detected by the pressure gauge 31, the water depth gauge 33 and the
thermometer 35. Outputs an electrical signal representing a synthetic voice message (for
example, "Now, tank pressure 160, water depth 15 m, diving time 25 minutes") according to each
signal from pressure gauge 31, depth gauge 33 and thermometer 35. Thus, the signal processing
unit 37 outputs a signal instructing the speech synthesis unit 38. The voice synthesis unit 38
outputs an electrical signal representing a synthesized voice message, amplifies the electrical
signal by the power amplifier 39, and converts the electrical signal from the power amplifier 39
into a mechanical vibration signal by the speaker unit 40. Then, an acoustic diaphragm (not
shown) is vibrated to transmit the synthesized voice message as a sound wave. Therefore, during
diving, it is possible to know the air pressure, water depth and temperature in the tank without
looking at the display of the instrument even in dark water, and to warn the situation by
notifying the situation by voice every given time. In addition, for example, when the remaining
amount of air becomes equal to or less than a predetermined amount, the safety can be improved
by notifying by voice.
[0040]
Although the pressure gauge 31, the depth gauge 33, and the thermometer 35 are used in the
above-described underwater communication device for divers, at least one of the pressure gauge
31, the depth gauge 33, and the thermometer 35 may be used. In addition, other sensors may be
used to output an audio message based on the signals detected by that sensor.
[0041]
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14
(Fifth Embodiment) FIG. 5 is a block diagram of a watercraft for divers according to a fifth
embodiment of the present invention, wherein 41 is a microphone, 42 receives a signal from the
microphone 41, and receives a specific frequency band (for example, voice) 43) is an ultrasonic
wave receiving microphone for converting an ultrasonic signal into an electric signal, 44 an
ultrasonic amplifier for receiving the electric signal from the ultrasonic wave receiving
microphone 43 and amplifying the electric signal, A pressure gauge 45 detects the pressure in a
tank (not shown), a pressure signal amplifier 46 amplifies the pressure signal from the pressure
gauge 31, a water depth meter 47 detects water depth, and a water depth signal from the water
depth meter 33. A depth signal amplifier for amplification, 49 a thermometer for detecting
temperature, 50 a temperature signal amplifier for amplifying a temperature signal from the
thermometer 35, 51 a filter 22, A signal processing unit as a selection unit for processing the
respective signals of the sound wave signal amplifier 24, the pressure gauge 31, the depth gauge
33 and the thermometer 35, 52 receives a control signal from the signal processing unit 51, and
is registered in advance A voice synthesis unit for outputting an electrical signal representing a
voice message, a power amplifier 53 for amplifying an electrical signal representing the
synthesized voice message from the voice synthesis unit 52, mechanical vibration of the
electrical signal amplified by the power amplifier 53 The speaker unit converts the mechanical
vibration signal into water as a sound wave by converting it into a signal. The voice synthesis
unit 52 and the power amplification unit 53 constitute a voice message generation unit. The
signal processing unit 51 includes a microcomputer and an input / output circuit. The speaker
unit 54 has the same configuration as the underwater diver's communication device shown in
FIGS. 7 (A) and 7 (B) except for the control board 80.
[0042]
The underwater diver's underwater communication device of the above configuration has the
same action and effect as the third and fourth embodiments.
[0043]
In addition, in this underwater communication device for divers, only one of the combination of
the microphone 41 and the filter 42 or the combination of the microphone 43 for ultrasonic
wave reception and the ultrasonic signal amplifier 44 may be used.
Although the pressure gauge 45, the depth gauge 47 and the thermometer 49 are used, at least
one of the pressure gauge, the depth gauge and the thermometer may be used. In addition, other
sensors may be used to output an audio message based on the signals detected by that sensor.
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[0044]
Sixth Embodiment FIG. 6 is a block diagram of the underwater diver according to the sixth
embodiment of the present invention, wherein 61 is a microphone for converting an audio signal
into an electric signal, and 62 is an electric signal from the microphone 61. Switch matrix as a
selection unit to which one end of each of the switches SW10 to SWn is connected and the other
ends of the switches SW10 to SWn are connected, and 63 is an electric signal representing the
selection signal and the voice message from the switch matrix 62 An audio recording and
reproducing unit for receiving the audio message and reproducing the recorded audio message,
and 64 is an electric power for amplifying an electric signal representing the reproduced audio
message from the audio recording and reproducing unit 63. An amplifier 65 converts the
electrical signal amplified by the power amplifier 64 into a mechanical vibration signal. A
speaker unit for transmitting a sound wave and the mechanical vibration signal in the water. The
signal processing unit 51 includes a microcomputer and an input / output circuit. Further, an
audio message generation unit is configured by the audio recording / reproducing unit 63 and
the power amplifier 64, and the audio recording / reproducing unit 63 converts the audio signal
into a digital signal and stores it in the semiconductor memory. The voice message reproducing
unit converts the digital signal stored in the semiconductor memory into a voice signal and
outputs the voice signal. The speaker unit 54 has the same configuration as the underwater
diver's communication device shown in FIGS. 7 (A) and 7 (B) except for the control board 80.
[0045]
The underwater diver for divers having the above configuration turns on one of the switches
SW10 to SWn on land and turns on the switch SW20 to start voice recording, and the voice
recording / reproducing unit 63 receives the signal from the microphone 61. The audio signal is
recorded corresponding to the turned on switch among the switches SW10 to SWn. When the
switch SW20 is turned off, the voice recording is ended. Similarly, the switch SW20 is turned on,
the other one of the switches SW10 to SWn is turned on, and a voice message is recorded. Thus,
after recording a plurality of voice messages, when one of the switches SW10 to SWn is turned
on in water with the switch SW20 turned off, the voice recording / reproducing unit 63 responds
to the voice message corresponding to that switch. (For example, "This fish is ...", "Underwater
guidance ...") is output. The audio signal from the audio recording / reproducing unit 63 is
amplified by the power amplifier 64, and the electric signal which is the audio signal is converted
from the underwater speaker unit 65 into a mechanical vibration signal and output.
04-05-2019
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[0046]
Thus, by transmitting the selected voice message underwater, it is possible to transmit
information of various contents, and sufficient sound pressure can be obtained even if the water
depth is 10 m or less. Further, since the underwater diver's underwater communication device
records necessary voice messages in advance by the voice recording / reproducing unit 63 and
reproduces the recorded voice messages, the necessary voice messages are appropriately
recorded on the spot, It can be played back.
[0047]
The underwater diver's underwater communication device of the present invention is not limited
to underwater use, and may be used on land as a totally waterproof communication device.
[0048]
Moreover, in the said 1st-6th embodiment, as shown to FIG. 7 (B), although the underwater
communication apparatus for divers arrange | positions the underwater speaker part and the
other structure part in the same sealed container, the underwater speaker is The parts and other
components may be separate.
[0049]
Further, in the first to sixth embodiments, as shown in FIG. 7B, the acoustic diaphragm 71b has a
convex shape, but the shape of the acoustic diaphragm is not limited to this, and it corresponds
to the frequency band to be transmitted It may be shaped as appropriate.
For example, when it is necessary to transmit a signal sound or voice message in a relatively high
frequency band, as shown in FIG. 8, a front end in which one end of a cylindrical portion 85a is
closed by a frusto-conical acoustic diaphragm 85b. Case 85 may be used.
Also, when it is necessary to transmit a signal sound or voice message in a relatively mid-range
frequency band, the acoustic diaphragm is formed into a spherical shape.
[0050]
04-05-2019
17
In addition, as shown in FIG. 9, the underwater communication device for divers of the present
invention may have a lighting function. That is, as shown in FIG. 9, the front case 91 has a
cylindrical portion 91a and an acoustic diaphragm 91b closing one end of the cylindrical portion
91a, and a hole 90 provided substantially in the center of the acoustic diaphragm 91b. The
transparent member 92 is attached to (approximately the same diameter as the aluminum
cylinder 76), and the reflecting mirror 94 and the halogen lamp 93 are attached to the end of the
cylindrical portion 75a of the second pole piece 75 in the aluminum cylinder 76. In this case,
when the halogen lamp 93 is turned on, light is emitted to the outside through the transparent
member 92, and the underwater diver's underwater communication device can be used as a
lighting fixture. In addition, by turning on the halogen lamp 93 with the battery that is the power
source of the underwater diver's conversation device, it is possible to know the remaining
amount of the battery by the degree of the brightness of the halogen lamp 93. In FIG. 9, the same
components as those of the underwater diver's communication device shown in FIG. 7 (B) will be
assigned the same reference numerals and descriptions thereof will be omitted.
[0051]
Moreover, in the said 4th, 5th embodiment, although the depth meters 33 and 47 and the
thermometer 35 and 49 were used, you may use the diver watch which has at least one function.
[0052]
As is apparent from the above description, the underwater communication device for a diver
according to the invention of claim 1 represents a signal sound generation unit for outputting a
signal sound representing information as an electric signal, and which information is to be
output. A selection unit for outputting a signal to a signal sound generation unit, a sealed
container having an elastically deformable acoustic diaphragm, an electrical signal-mechanical
vibration signal conversion unit provided in the sealed container, the acoustic diaphragm And an
elastically deformable support plate provided in the sealed container so as to form a sealed space
therebetween and to support the electrical signal-mechanical vibration signal converter, wherein
the electrical signal-mechanical The vibration signal conversion unit converts an electrical signal
representing the signal sound from the signal sound generation unit into a mechanical vibration
signal, vibrates the acoustic diaphragm, and transmits it as a sound wave.
[0053]
Therefore, according to the underwater communication device for divers of the invention of
04-05-2019
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claim 1, based on the electric signal (signal sound representing information) selected by the
selection unit and output by the signal sound generation unit, the electric signal − A mechanical
vibration signal converter, for example, turns on and off single frequency signal sound to
transmit Morse code etc. as sound wave in water, or sound sound in which two or more signal
sounds having different frequencies are combined as sound wave in water By transmitting
information, information of various contents can be transmitted.
Further, by adjusting the thickness of the acoustic diaphragm to a frequency in the sound range
to transmit the natural vibration frequency of the acoustic diaphragm, a sufficient sound
pressure can be obtained in the middle range, and the acoustic diaphragm according to the water
pressure Is elastically deformed, for example, the air filled in the closed space is compressed, and
the compressed air elastically deforms the support plate inwards and bends, and the electric
signal-mechanical vibration signal converter supported by the support plate Is not affected by
water pressure.
Therefore, it is possible to transmit a signal sound representing information in water without
using air for breathing as in the underwater whistle, and a sufficient sound pressure can be
obtained even if the water depth is 10 m or less.
[0054]
Also, the underwater diver according to the invention of claim 2 comprises a voice message
generator for outputting a pre-recorded voice message or a synthesized voice message as an
electrical signal, and a signal representing which voice message is to be output Between a
selection unit outputting to a voice message generation unit, a sealed container having an
elastically deformable acoustic diaphragm, an electrical signal-mechanical vibration signal
conversion unit provided in the sealed container, and the acoustic diaphragm And an elastically
deformable support plate provided in the sealed container so as to form a sealed space and to
support the electrical signal-mechanical vibration signal converter, and the electrical signalmechanical vibration The electric signal representing the voice message from the voice message
generation unit is converted into a mechanical vibration signal by the signal conversion unit, and
the acoustic diaphragm is vibrated and transmitted as a sound wave. It is.
[0055]
Therefore, according to the underwater communication device for divers of the invention of
claim 2, based on the electric signal (signal tone representing information) selected by the
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19
selection unit and outputted from the voice message generation unit, the electric signal − The
mechanical vibration signal converter can convey information of various contents by transmitting
a voice message as sound waves into water.
Further, by adjusting the thickness of the acoustic diaphragm to a frequency in the sound range
to transmit the natural vibration frequency of the acoustic diaphragm, a sufficient sound
pressure can be obtained in the middle range, and the acoustic diaphragm according to the water
pressure Is elastically deformed, for example, the air filled in the closed space is compressed, and
the compressed air elastically deforms the support plate inwards and bends, and the electric
signal-mechanical vibration signal converter supported by the support plate Is not affected by
water pressure. Therefore, an audio message can be transmitted underwater, and sufficient
sound pressure can be obtained even if the water depth is 10 m or less.
[0056]
In the underwater communication device for a diver according to the invention of claim 3, in the
underwater communication device for a diver according to claim 2, the selection unit identifies
the sound represented by the electric signal converted from the sound from the microphone, and
Since a signal instructing the voice message generation unit to output an electrical signal
representing a voice message of the content according to the identified voice is output, the voice
of the speaker is not transmitted as a sound wave in the water as it is, the speaker Speech
messages corresponding to words are transmitted underwater as pre-recorded speech messages
or synthesized speech messages. Therefore, more reliable information transmission can be
performed.
[0057]
In the underwater communication device for a diver according to the invention of claim 4, in the
underwater communication device for a diver according to claim 2, the selection unit is an
electric signal from an ultrasonic wave receiving unit for converting an ultrasonic signal into an
electric signal. The voice message generation unit outputs a signal instructing the voice message
generation unit to identify information to output an electrical signal representing a voice
message of the content according to the identified information, so that the voice of the speaker
as it is Instead of being transmitted as a voice message of the content corresponding to the sent
ultrasound signal is transmitted underwater as a pre-recorded voice message or a synthesized
voice message. Therefore, more reliable information transmission can be performed.
04-05-2019
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[0058]
According to the fifth aspect of the present invention, in the submersible communication device
for a diver according to the second aspect of the present invention, in the submersible
communication device for a diver according to the second aspect, detection from at least one
sensor of air pressure, water depth or temperature detecting tank for aqua rung Since the
selection unit outputs a signal instructing the voice message generation unit to output an electric
signal representing a voice message of the content according to the signal, the display in the
meter is not seen in the dark water, and the inside of the tank is It is possible to know air
pressure, water depth and temperature, and to alert you by notifying the situation by voice at
regular intervals. Further, for example, when the remaining amount of air becomes less than a
predetermined amount, that is, when the air pressure becomes less than a predetermined
amount, safety can be improved by notifying by voice.
[0059]
According to the sixth aspect of the present invention, in the submersible communication device
for a diver according to the second aspect, the voice message generation unit records the voice
message as an electric signal by the voice message recording unit, and the voice message is
generated. Since the voice message recorded in the voice message recording unit is played back
as an electric signal by the playback unit, a necessary voice message can be appropriately
recorded and played back on the spot.
[0060]
According to the seventh aspect of the present invention, in the submersible communication
device for a diver of the first or second aspect, the light source for emitting light outward
through the light transmitting portion of the acoustic diaphragm is provided. Since the light
source is provided in the sealed container, the diver's underwater communication device can also
be used as a lighting fixture.
When a battery is used as the power source of the underwater diver's underwater
communication device, the battery life can be determined by the degree of brightness of the light
source by lighting the light source with the battery.
04-05-2019
21
[0061]
Brief description of the drawings
[0062]
FIG. 1 is a block diagram of a diver's underwater communication device according to the first
embodiment of the present invention.
[0063]
FIG. 2 is a block diagram of a diver's underwater communication device according to a second
embodiment of the present invention.
[0064]
FIG. 3 is a block diagram of a diver's underwater communication device according to a third
embodiment of the present invention.
[0065]
FIG. 4 is a block diagram of a watercraft underwater vehicle for divers according to a fourth
embodiment of the present invention.
[0066]
FIG. 5 is a block diagram of a submersible underwater communication device according to a fifth
embodiment of the present invention.
[0067]
[FIG. 6] FIG. 6 is a block diagram of a watercraft underwater vehicle for divers according to a
sixth embodiment of the present invention.
[0068]
FIGS. 7 (A) and 7 (B) are a front view and a cross-sectional view seen from the side of the
underwater communication device for divers of the first embodiment.
[0069]
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22
FIG. 8 is a cross-sectional view of a front case having an acoustic diaphragm of another shape of
the above-described underwater speaker system for divers.
[0070]
FIG. 9 is a cross-sectional view of an essential part of the underwater diver having a lighting
function according to the present invention.
[0071]
Explanation of sign
[0072]
DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Digital signal generation part, 3 ... Switching
part, 4 ... D / A converter, 5 ... Power amplifier, 6 ... Speaker part.
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