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DESCRIPTION JP2001153950

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DESCRIPTION JP2001153950
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
fish finder which manipulates an image displayed on a display device by an audio signal taken
from a microphone.
[0002]
2. Description of the Related Art Conventionally, in a fish finder, when an ultrasonic transducer is
suspended in water and an oscillation output is applied from the oscillator to the ultrasonic
transducer, ultrasonic waves are emitted from the ultrasonic transducer into water, The reflection
echo of the sound wave is received by the ultrasonic transducer, converted into a reflection echo
signal, this reflection echo signal is amplified and input to the A / D converter, and converted into
a digital echo signal by the A / D converter. The digital echo signal is converted into an image
signal by an image conversion function and displayed on a display device.
[0003]
However, in such a fish finder, when viewing the image displayed on the display device, the
operation key changes the depth of the image or shifts the image. If you want to shift the image
or change the depth when you want to search the fishing ground while operating the ship or use
a fishing rod, you have to stop the operation of the ship or the use of the fishing rod, the
operation of the image Was a bother.
[0004]
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1
SUMMARY OF THE INVENTION According to the present invention, ultrasonic waves are applied
to water from an ultrasonic transducer, and reflection echoes of the ultrasonic waves in water are
received by the ultrasonic transducers and converted into reflection echo signals. A fish school in
which the reflected echo signal is amplified by an amplifier, converted into a digital signal by an
A / D converter, taken into a control device comprising a CPU, converted into an image signal by
an image conversion function, and displayed on a display device In the detector, a predetermined
voice signal is stored in a memory connected to the control device, and a voice signal input by a
microphone connected to the control device is input to a voice discrimination function
incorporated in the control device. To change the display depth of the image being displayed on
the display device, the shift of the image, and the sensitivity as compared with the audio signal
stored in the memory; Apparatus incorporating a sound generating function, by connecting the
speaker to the speech generation functions, the audio signal from the microphone, the depth to
be displayed on the display device, may be generated by the speaker.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, in a fish finder in
which water is displayed by reflected echoes of ultrasonic waves, the depth of an image to be
displayed and the shift of the image can be changed by the input of sound. , Can continue to
operate the ship and use of fishing rods.
[0006]
1 is a block diagram of a fish finder according to an embodiment of the present invention, in
which a memory 2 and an oscillator 3 are connected to a control unit 1 comprising a CPU, and an
ultrasonic transducer 4 is connected to the oscillator 3. The ultrasonic transducer 4 is connected
to the amplifier 5, the A / D converter 6 is connected to the amplifier 5, the output of the A / D
converter 6 is connected to the input terminal of the control device 1, and The display device 7
and the operation key 8 are connected to the output terminal, the microphone 9 is connected to
the voice discrimination function 1a built in the control device 1, and the speaker 10 is
connected to the voice generation function 1b built in the control device 1 There is.
[0007]
In the fish finder of this embodiment configured as described above, when an operation signal is
input from the control device 1 to the oscillator 3 every predetermined time, the oscillation
output is sequentially applied from the oscillator 3 to the ultrasonic transducer 4 As a result,
ultrasonic waves are sequentially irradiated from the ultrasonic transducer 4 installed in the
water into the water, and a reflection echo of ultrasonic waves in water is received by the
ultrasonic transducer 4 and converted into a reflection echo signal. The reflected echo signal is
amplified by the amplifier 5, converted into a digital echo signal by the A / D converter 6, taken
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2
into the control device 1, sequentially stored in the memory 2, and further, the digital echo signal
stored in the memory 2 The image is sequentially processed and displayed on the display device
7.
[0008]
Here, when a voice such as “depth change” is input to the microphone 9, simple words such as
“depth change”, “image display”, and “image shift” stored in the memory 2 in advance
are voices. The control device 1 operates to change the depth from the signal of “change in
depth” stored in the memory 2 by being sequentially input to the determination function 1 a
and compared with the audio signal of “change in depth” input from the microphone 9. In
other words, the depth change is performed by changing the operation time of the gate for taking
in the digital echo signal input from the A / D converter 6.
[0009]
Similarly, when a voice is input from the microphone 9 in "image display", "image shift", etc., the
control device 1 can perform each operation by the voice signal in the voice discrimination
function 1a. it can.
[0010]
The operation key 8 is used for initial setting and the like, and the voice generation function 1b is
built in the control device 1 so that the depth is displayed on the display device 6, and the depth
is voiced from the speaker 10 by voice. Alternatively, the microphone 9 may be connected to the
voice discrimination function 1a of the control unit 1 in the above embodiment, but a wire may
be connected. Instead, wireless means capable of transmitting voice signals at remote locations
may be used.
[0011]
As described above, in the fish finder according to the present invention, in the fish finder in
which the water is displayed by the reflection echo of ultrasonic waves, the depth of the image to
be displayed, the shift of the image, etc. Since it can be changed by the input audio signal, there is
an advantage that the operation of the ship and the use of the fishing rod can be continued.
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