JPS63276433A - Light and sound fish gatherer - Google Patents

Abstract

PURPOSE:To enable lure fish shoals to a rigged ship and efficient catch of fishes, by providing an operating device for hanging and lifting a light and sound transmitter from the rigged ship therein. CONSTITUTION:A light and sound transmitter 1 containing sound producing equipment and light emitting equipment installed in a common box body is hung through a cable 3 from a fishing boat (FS) into the sea at a suitable depth by an operating device 4 provided in the fishing boat (FS). A pressure- resistant vibration plate 9 which is a sound-producing speaker is then subjected to oscillation control to a given frequency and mode favorable for fishes which are objects by a sound production controller provided in the fishing boat (FS) and amplified to a desired volume and fed to a speaker. The resultant sound is subsequently produced into water to lure fish shoals to the periphery of the box body. On the other hand, a light emitting bulb is lit and controlled to a given mode by a light emission controller to project light from light transmitting windows 8 into the sea. Fish shoals gathering around the box body are then collected near the box body and caught.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention utilizes the habit of fish to react extremely sensitively to light and sound, and uses sound to locate schools of fish whose location has been determined using a fish finder. This relates to a fish collector that uses light to guide fish to a desired body of water and gather them by surfacing.

[Conventional technology]

It has been well known for a long time that fish have a habit of responding to light and sound. However, for fish, light and sound are completely different stimuli and sensations, so people have only thought about how to apply them to fish in different cases.

In other words, with regard to light, it has long been common practice to use fishing lights to catch fish at night. This is a well-known fact. When we look into the reason for this, we find that plankton gathers where there is light.

Fish that feed on plankton follow light that attracts plankton.

Next, let's think about sound.For fish, the sounds that come from the sea surface mainly come from the crests of waves, and they are always familiar with them, so it's obvious that they don't have any special interest in them.The same goes for underwater noise. However, unfamiliar or special sounds should make you wary. It is also said that if you hit the gunwale, fish will come to you. W.J.'s famous example is sea bream. Sea bream seems to belong to highly intelligent fish,
This behavior, which probably shows a strong interest in unusual sounds, seems to be widely established in various types of fish.Recently, in Japan, the habits of fish have been well studied and marine farms are being promoted. Underwater speakers are effectively used to control fish, to move schools of fish as desired by using underwater speakers to separate and collect fish.

As mentioned above, the effect of light attracts schools of fish through the aggregation of plankton, and the effect of sound is thought to be caused by the habits of the fish themselves related to their curiosity and vigilance. Although these two methods may be used independently, no one has focused on the merits of using the effects of both simultaneously or alternately.

[Problem that the invention seeks to solve]

Conventionally, attempts to attract fish using light have most commonly involved lighting lights above the sea surface (in the air). This is limited to night fishing. It has been given a special name, Isaribi (fishing fire) since ancient times.

Next, as I have gained more experience working on marine farms, I have discovered many valuable habits and many possibilities for attracting schools of fish with sound. In other words, depending on the type of fish,
It has also been discovered that each fish has a different preferred frequency.

Therefore, we have gained empirical knowledge that it is possible to target a limited number of types of fish, generate sounds at frequencies preferred by the fish, and attract the desired fish near the underwater speaker that emits these sounds. , we have reached a stage where these can be used effectively.

Now, if we look at it from the perspective of fisheries, the development of fish finders has made it easy to see the whereabouts of fish. A. Swimming fish can be clearly identified as a school of fish even from several thousand meters away. You can also see what is gathering near the ocean floor.

Therefore, the first step is to appropriately solve the problem of how to make the identified school of fish come closer to the fishing boat rather than aiming at them, and effectively introduce them into the net without wasting any wasted effort. This is the main problem.

In other words, it is only necessary to solve the problem of what method should be used to guide the schools of fish whose whereabouts have been determined toward the fishing boat and gather them together.

[Means for solving problems]

As mentioned above, we came up with the idea of effectively using sound and light to solve the problem of attracting schools of fish whose whereabouts are known to the fishing boat.

First of all, sound can travel a considerable distance underwater. In particular, audible sound waves have less attenuation than ultrasonic waves T, so when a school of fish hears a desirable sound that is unique to that fish species and that can travel long distances and attract the attention of fish, the school of fish immediately determines the direction of the sound source. Coming towards that direction. When they come near the source of the sound, they find that nothing has changed and there is no reason to keep the school of fish, so they will swim away again. If it is full of invisible light, plankton may be under the illusion that it must be gathering there, and they move around in circles. In other words, it was found to be effective in retaining schools of fish. Even in the case of a school of fish resting on the ocean floor, when they come to the surface due to the sound, they start migrating, thinking that there is an abundance of food because there is a lot of light.

Therefore, once a sufficient number of fish have gathered, fishermen can begin fishing.

[Effect]

The photoacoustic fish collector according to the present invention is equipped with a sounding device and a light emitting device in a common housing and is suspended from a fishing boat at an appropriate depth, and emits sounds at frequencies preferred by target fish in an appropriate mode. Since the sound is emitted from the speaker underwater, it has the effect of attracting schools of fish, and since there is light underwater when they come near, it has the effect of keeping them in the vicinity.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a conceptual side view showing the configuration of an embodiment of the present invention, FIG. 3 is a front panel layout A and a back panel layout B of a photoacoustic controller which is another component of the present invention, and FIG. 4 is a block diagram of the circuit of the entire system of the present invention.

In Figure 1, FS is a fishing boat equipped with a photoacoustic fish collector;
2 is a light and sound transmitter suspended from the ship's side, 2 is a light and sound controller installed inside the ship, and 3 is a cable with a light and sound transmitter l suspended at a moderate depth using control equipment 2t4. , 5 is a school of fish migrating near the sea surface, 6 is a school of fish clustered near the ocean floor, and 7 is attracted by the effects of light and sound! ! A school of fish gathered near the optical sound transmitter, 8 a transparent window provided in the optical sound transmitter, 9 a diaphragm forming part of the speaker of the optical sound transmitter, 10 the sea surface, and 11 the seabed. It is.

Next, Fig. 2A is a vertical cross-sectional view of the optical sound transmitter, and Fig. 2B is a bottom view thereof.
A flat plate-shaped portion 11 that serves as a diaphragm and a lower half of the housing.
1 and a strong flange via rubber gaskets and are firmly connected at multiple points around the entire circumference with bolts. 10
1 is an incandescent light bulb; 102 is a pressure-resistant transparent window provided at equal intervals around a hemispherical housing; 103 is a light bulb socket fixedly provided on the housing; and 104 is a water-resistant and pressure-resistant socket. The cable through hole 106 is a fastener provided outside the casing, and is a main mounting part that maintains the mechanical strength for fastening the optical sound transmitter and also controls the fastening of the electrical cable. 112 is an element for an acoustic vibrator, which is in close contact with the diaphragm 111;
It drives a diaphragm at a predetermined frequency.

Next, FIG. 3 shows an example of the mounting panel of the photoacoustic controller, which is the main part of the photoacoustic fish collector, and is useful for concretely understanding its operation and mechanism. That is, A is its front panel,
B shows the arrangement of the rear panel, 2 is the entire light and sound controller, 201 is the power switch, 202 is a volume that controls the volume of sound generation, 203 is a volume that determines and sets the length of the sound that is generated, 204 Reference numeral 205 indicates a channel switch for the fish collector, and if the species of fish is known, a channel number is selected and used according to the species of fish. 206 is a light generation switch 3
There are stages, ON is the one that emits light continuously, the middle one is the one that emits light intermittently, OFF is off, 207 is an LED indicator light that flashes when using light generation, 208 is the one that makes the sound sufficiently effective to reach the seabed. It was set up as a guide to the distance that can be reached, and is estimated to be the distance multiplied by 10 to 15 meters on the numerical scale. In Figure 3B, which shows the rear panel, 209 is the speaker cable connector, 210 is the heat sink, 211 is the fuse, 212 is the power cord, and 213 is the power clip attached to the end of the power cord that connects the 24V from the inside of the ship. Used to introduce power supply.

Next, FIG. 4 will be explained. FIG. 4 is a block diagram of the circuit, showing in block form the internal coupling system of the optical sound controller of FIG. That is, power clip 2
The DC power supply connected to the 24V onboard power supply at 13 is 201.
When the main switch is turned on, the transistor and source cord are connected to the power circuit in the device via fuse 211 and 212. The power supply circuit uses an inverter to supply DC24V, D
The 0-order lamp driver 206 generates C12V and DC5V power, the amplifier is 24V, and the level meter circuit is 12
V, CPU block, and voice synthesis LSI 205 are each supplied with 5V, the light circuit is operated by adjusting 206, and the sound circuit is operated by appropriately adjusting 203, 204, 205, 202, etc. to generate audio data. , operates by making effective use of memory.

〔Effect of the invention〕

According to this invention, instead of aiming the boat at a school of fish whose location was known using a fish finder or the like and pursuing it, it is possible to use the l-speaker preferred by the fish species to emit signals to the fishing boat from the other side. In addition to moving towards the direction of the fish, they also migrate around the light source that emits light and stay there, so there is sufficient time to carry out the specified operations, which has the effect of making it possible to carry out an extremely efficient fishing method. be.

Also, regarding the schools of fish that gather near the seabed, deep (3.
00m to 500m), it would take time to lower the fishing net properly.

During that time, they often ran away, but with this invention, they listen to the sound and come to you.In other words, they float and gather in shallow places, so they have the property of circling around that single light, so it can be done in a short time. It has the effect of being able to catch it with a net.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an overview of the invention, FIG.
Figure 4 is a front panel layout diagram A and back panel layout diagram B showing the configuration of an embodiment of a light sound system U4 base, and Figure 4 is a block diagram showing the circuit configuration of an embodiment of the present invention. In, l... optical sound transmitter 2... optical sound controller 3...
Cable 4...Control device 5...School of swimming fish
6... Undersea fish school 7... Aggregated fish school 8.
... Translucent window 9 ... Vibration plate lO ... Sea surface 1
1... Seabed FS... Fishing boat 101... Light bulb (lamp) 102... Light source window (=8) 103... Light source cable 104... Water pressure resistant through hole 105... Tightening port nut 106... Law stop metal 111... Vibration plate (underwater speaker) 112... Internal diaphragm 113... Sound source cable 114... Rubber gasket 201... Power switch 202... Audio volume 203...Sound length setting 204...Sound interruption ￥f3J section 205...Fish gathering sound channel 206...Light generation switch 207...Light generation monitor 20g...Sound reach distance 209... Speaker connector 210... Heat sink 211... Fuse 212... Power cord 213... Power clip 214... Cord winding stay Applicant Core Land Co., Ltd. Agent Patent attorney 1) Akira Saki Yoshiyoshi Fig. 2 A Fig. 3 A 'f, Fig. 3 B 207; Occurrence monitor Fig. 4

Claims (1)

[Scope of Claims] 1. A light emitting bulb and a sounding speaker are housed and equipped in a pressure-resistant housing, having a plurality of transparent windows for light projection, and sound is radiated from a pressure-resistant diaphragm forming the sounding speaker. a light-sound transmitter that controls the lighting of the light-emitting bulb in a predetermined mode; and a light-emission controller that controls the oscillation of the sound-producing speaker to a predetermined frequency and mode, amplifies it to a desired volume, sends it to the speaker, and sends it to the speaker. and a control device for suspending and retrieving the light-sound transmitter from an equipped boat into the water, and is characterized in that it is equipped on a fishing boat or the like and used for guiding a school of fish. Light sound fish collector. 2. The pressure-resistant casing of the above-mentioned optical sound transmitter is a cylinder, cone, spherical surface, polygonal prism, or weight that is symmetrical about the central vertical axis, and has 6, 8, or more light-transmitting windows;
The optical sound according to claim 1, characterized in that the sound transmitting diaphragm is formed in common with the bottom of the pressure-resistant casing, and is attached to the sound generating element of the sound source by adhering it to the inside of the diaphragm. Fish collector. 3 The above light emission controller selects a power source for the light source and a light bulb for the light source with the aim of emitting a value close to the light intensity most preferred by fish, and uses a general marine battery power source as the power source and an incandescent bulb as the light bulb. The photoacoustic fish collector according to claim 1, which is used. 4. The predetermined frequency and volume of the sound generation speaker used as the sound source are based on the results of a survey of the preferences of various fish, using frequencies specific to each species of fish, controlling a specific voice synthesis LSI to perform voice signal switching, 2. The photoacoustic fish collector according to claim 1, wherein a plurality of highly utilized frequencies are each adjusted to a predetermined volume and transmitted underwater in a predetermined mode. 5. Claim No. 5, characterized in that the control device for suspending and retrieving the optical sound transmitter in the water has a performance that is normally set at a distance of 10 m to 15 m from the water surface based on the results of practical tests. The optical sound fish collecting device described in item 1.