JP7356768B1 - Electronic equipment and magnetic field barrier forming equipment - Google Patents

Abstract

An object of the present invention is to provide an electronic device that has a simple configuration and can drive away approaching fish having Lorenzini organs. An electronic device 10 of the present invention is for repelling fish SK and RY having Lorenzini organs, and includes a power source 43 and an output section 47 including a first output terminal 47A and a second output terminal 47B. A generator 40A that converts the DC voltage supplied from the power source 43 into an AC voltage and outputs it from the output section 47, and an electric wire whose one end is connected to one of the first output terminal 47A and the second output terminal 47B. When the electric wire 50A, in which at least one coil 52A is formed, and the first output terminal 47A and the second output terminal 47B are electrically connected via seawater, a DC voltage is generated from the power source 43. and a power switch 48 for supplying power. [Selection diagram] Figure 1

Description

The present invention relates to an electronic device and a magnetic field barrier forming device.

Patent Document 1 discloses a shark repelling device for fishing that repels sharks that flock to captured fish. This shark repellent device for fishing includes a first electrode placed in seawater near a fishing boat and attached to an electric wire, and a shark repellent device placed in seawater at a predetermined distance from the first electrode and attached to the electric wire. and a power supply means for applying a DC voltage so that one of the first electrode and the second electrode becomes a positive electrode and the other becomes a negative electrode. In this fishing shark repelling device, a DC pulse with a voltage of 600 V and a pulse width of 0.5 ms is applied to the first electrode and the second electrode, respectively, while the polarity is alternately switched twice per second. is applied to As a result, sharks that try to approach the fishing boat receive an electrical shock, which is said to be able to scare them away.

Additionally, Non-Patent Document 1 describes a paper by Florida State University biologist Bryan Keller about the fact that some sharks swim thousands of kilometers every year to return to the same feeding grounds. There is. The paper suggests that sharks likely use the Earth's magnetic field to orient themselves.

Japanese Patent Application Publication No. 2006-149275 nature, scientific reports, Insight into shark magnetic field perception from empirical observations [online], October 23, 2019, [Retrieved August 6, 2021], Internet <URL: https://www.nature.com/articles /s41598-017-11459-8＞

In the case of the fishing shark repelling device disclosed in Patent Document 1, a DC voltage of 600V is applied to the first electrode or the second electrode. Therefore, for example, it is possible to apply an electrical shock that stimulates the Lorenzini organ to a shark located at a distance of several tens of meters or more from each electrode. However, according to test research conducted by the inventor of the present application, it has been confirmed that although there are sharks that can be chased away by this electrical shock, there are also sharks that cannot be chased away by this electrical stimulation. The inventor of this application speculates that the cause is probably that sharks become accustomed to this electrical stimulation.

One of the objects of the present invention is to provide an electronic device that has a simple configuration and is capable of driving away approaching fish having the Lorenzini organ.

The electronic device of the first aspect is
In electronic equipment for repelling fish with Lorenzini organs,
a generator having an output section including a power supply and a first output terminal and a second output terminal, converting a DC voltage supplied from the power supply into an AC voltage and outputting it from the output section;
at least one electric wire, one end of which is connected to one or both of the first output terminal and the second output terminal, and in which at least one or more coils are formed;
A switch that configures an electric circuit together with the generator and the electric wire to turn on and off the output from the power source, the first output terminal and the second output terminal being electrically connected via seawater. a power switch for supplying DC voltage from the power source;
Equipped with

The electronic device of the second aspect is
In the electronic device of the first aspect,
The at least one electric wire has a string shape that can be elastically deformed in seawater,
The at least one or more coils are two or more coils formed in mutually distant parts of the electric wire.

The electronic device of the third aspect is
In the electronic device of the second aspect,
The two or more coils have different inductances.

The electronic device of the fourth aspect is
In the electronic device according to any one of the first to third aspects,
The waveform of the AC voltage output by the generator is a composite wave obtained by superimposing multiple types of AC waveforms.

The electronic device of the fifth aspect is
In the electronic device of the fourth aspect,
The plurality of types of AC waveforms constituting the composite wave differ from each other in all or at least one of amplitude, period, and phase.

The electronic device of the sixth aspect is
In the electronic device according to any one of the first to fifth aspects,
The generator further includes a storage unit that stores AC voltage patterns of multiple types of AC waves having different waveforms as AC voltages to be output from the output unit, and a storage unit that stores the patterns stored in the storage unit. It has a selection switch for selecting one of the patterns.

The electronic device of the seventh aspect is
In the electronic device of the sixth aspect,
The selection switch is capable of receiving a wireless selection signal from the outside and selecting one of the patterns.

The magnetic field barrier forming device of the first aspect includes:
In a magnetic field barrier forming device that forms a magnetic field barrier to repel fish having Lorenzini organs,
An electronic device group each comprising the electronic device according to any one of claims 1 to 7, wherein: (1) the at least one electric wire of each electronic device has one end connected to the first output; a pair of electric wires connected to each of the terminal and the second output terminal, (2) both other ends of the pair of electric wires included in each electronic device are arranged vertically stacked in seawater; ) a group of electronic devices in which both other ends of the plurality of pairs of electric wires are arranged in a direction intersecting the vertical direction;
a group control unit that controls a waveform of an AC voltage output from a generator included in each of the plurality of electronic devices constituting the electronic device group;
Equipped with

The magnetic field barrier forming device of the second aspect includes:
In a magnetic field barrier forming device that forms a magnetic field barrier to repel fish having Lorenzini organs,
An electronic device group each comprising the electronic device according to any one of claims 1 to 7, wherein: (1) the at least one electric wire of each electronic device has one end connected to the first output; A pair of electric wires are connected to each of the terminal and the second output terminal, and (2) the other end of one of the pair of electric wires included in each electronic device is arranged so as to converge at one point in seawater, and the other end of the pair of electric wires is the other end is a group of electronic devices arranged apart from each other so as to form a circumference outside the one point;
a group control unit that controls a waveform of an AC voltage output from a generator included in each of the plurality of electronic devices constituting the electronic device group;
Equipped with

According to the electronic device of the first aspect and the second aspect, it is possible to chase away an approaching fish having a Lorenzini organ with a simple configuration.

According to the electronic device of the third aspect, compared to a case where two or more coils each have the same inductance, it is possible to chase away a fish having a Lorenzini organ that approaches the electronic device.

According to the electronic device of the fourth aspect, compared to a case where the waveform of the alternating current voltage outputted by the generator is a simple alternating current waveform, it is possible to chase away approaching fish having the Lorenzini organ. Further, according to the electronic device of the fourth aspect, it is possible to drive away multiple species of fish having Lorenzini organs that are approaching, compared to a case where the waveform of the AC voltage output from the generator is a simple AC waveform. .

According to the electronic device of the fifth aspect, compared to a case where the waveform of the alternating current voltage outputted by the generator is a simple alternating current waveform, it is possible to chase away the approaching fish having the Lorenzini organ. Furthermore, according to the electronic device of the fifth aspect, it is possible to drive away multiple species of fish having Lorenzini organs that are approaching, compared to a case where the waveform of the alternating current voltage outputted by the generator is a simple alternating current waveform. .

According to the electronic device of the sixth aspect, compared to a case where the waveform of the alternating current voltage outputted by the generator is one pattern, a waveform pattern that can drive away a plurality of species of fish having the Lorenzini organ that approaches is selected. I can do it.

According to the electronic device of the seventh aspect, the waveform pattern that can drive away a plurality of species of fish having the Lorenzini organ that approaches can be changed by operating from the sea.

According to the magnetic field barrier forming device of the first aspect, it is possible to drive away fish having a Lorenzini organ that approaches the magnetic field barrier, compared to a case where at least one or more coils are not formed in the electric wire.

According to the magnetic field barrier forming device of the second aspect, it is possible to drive away fish having a Lorenzini organ that approaches the magnetic field barrier, compared to a case where at least one or more coils are not formed in the electric wire.

FIG. 1 is a schematic diagram of an electronic device according to the present embodiment. FIG. 2 is a block diagram of a circuit board included in the electronic device according to the present embodiment. It is an example of the waveform pattern of several alternating current voltages output by the electronic device of this embodiment. It is another example of the waveform pattern of the several alternating current voltage output by the electronic device of this embodiment. It is another example of the waveform pattern of the several alternating current voltage output by the electronic device of this embodiment. It is another example of the waveform pattern of the several alternating current voltage output by the electronic device of this embodiment. It is another example of the waveform pattern of the several alternating current voltage output by the electronic device of this embodiment. It is another example of the waveform pattern of the several alternating current voltage output by the electronic device of this embodiment. This is an example of a magnetic field generated near a coil when a current flows through an electric wire. It is a figure for explaining the usage example when the electronic device of this embodiment is used for sea fishing. FIG. 3 is a diagram for explaining an example of use when the electronic device of the present embodiment is used for walking in seawater. 1 is a schematic diagram of a magnetic field barrier forming apparatus to which the electronic device of this embodiment is applied. It is a figure for explaining the example of use when the magnetic field barrier formation device of this embodiment is used for a fish culture net. It is a figure for explaining another usage example when the magnetic field barrier formation device of this embodiment is used for a fish culture net. FIG. 3 is a block diagram of a circuit section included in an electronic device according to a modification. It is a schematic diagram of the electronic device of another modification. It is a schematic diagram of the electronic device of another modification.

The electronic device 10 of this embodiment (see FIGS. 1 and 2), the magnetic field barrier forming apparatus 100 of this embodiment (see FIG. 6), and modifications thereof will be described below. In this specification, it should be noted that in each drawing referred to in different embodiments, components having similar functions are denoted by the same or similar symbols.

≪Electronic equipment≫
First, the configuration, functions, method of use, and effects of the electronic device 10 of this embodiment will be described with reference to the drawings.

<Configuration and functions>
FIG. 1 is a schematic diagram of an electronic device 10. As shown in FIG.
The electronic device 10 is used with part or all of it placed in a seawater SW, and has a function of repelling fish having Lorenzini organs, such as sharks SK and rays RY (see FIGS. 5, 7, etc.) ).
As shown in FIG. 1, the electronic device 10 includes a housing 20, a hook 30, a circuit board 40, and an electric wire 50A.

(housing and hook)
The housing 20 is, for example, a bottomed cylinder made of resin and having an opening 22 formed at one end. The housing 20 accommodates a circuit board 40 therein, and allows an electric wire 50A (details will be described later) connected to the circuit board 40 to pass through the opening 22.
The hook 30 is fixed to the end of the housing 20 opposite to the opening 22. The hook 30 has an opening/closing part 32 that can be opened and closed, and is configured such that, for example, the fishing line FL (see FIG. 4) is passed through the opening/closing part 32.

(circuit board)
FIG. 2 is a block diagram of the circuit board 40 that constitutes the electronic device 10.
The circuit board 40 includes a printed wiring board 41, a conversion section 42, a power supply 43, a control section 44, a storage section 45, a selection switch 46, an output section 47, and a power switch 48. The whole constitutes an electric circuit. In this embodiment, components other than the power switch 48 on the circuit board 40 are referred to as a generator 40A.

A circuit pattern (not shown) is printed on the printed wiring board 41. A converting section 42, a power source 43, a control section 44, a storage section 45, a selection switch 46, an output section 47, and a power switch 48 are mounted on the printed wiring board 41.
The conversion unit 42 is electrically connected to the power supply 43 and the output unit 47, and has a function of converting the DC voltage supplied from the power supply 43 into an AC voltage having an amplitude of less than 100V, for example. The AC voltage converted by the converting section 42 is output from the output section 47.
The power source 43 is, for example, a battery that is detachable from the printed wiring board 41.
The control unit 44 is electrically connected to the conversion unit 42 and the storage unit 45, and converts the DC voltage supplied from the power supply 43 into a plurality of waveform patterns stored in the storage unit 45 (see FIGS. 3A to 3F). The converter 42 is controlled so that the AC voltage is converted into an AC voltage having one of the waveform patterns. The plurality of waveform patterns will be described later.
The storage unit 45 stores AC voltage waveform patterns of multiple types of AC waves having different waveforms as the AC voltage output from the output unit 47 .
The selection switch 46 is a switch for selecting one of the waveform patterns of AC voltage of a plurality of types of AC waves having different waveforms stored in the storage unit 45.
The output section 47 has a first output terminal 47A that outputs an alternating voltage, and a second output terminal 47B to which a reference voltage (0V) is applied. In FIG. 1, as an example, the electric wire 50A is connected to the first output terminal 47A, but the reverse may be possible.
The power switch 48 constitutes an electric circuit together with the generator 40A and the electric wire 50A, and turns on and off the output from the power source 43. The power switch 48 is configured to supply DC voltage from the power source 43 when the first output terminal 47A and the second output terminal 47B are electrically connected via seawater. Specifically, the power switch 48 has a current detection sensor (not shown), and when the first output terminal 47A and the second output terminal 47B are electrically connected, the current detection sensor detects the voltage between both terminals. DC voltage is supplied from the power source 43 by detecting the weak current flowing between them.

Next, a plurality of waveform patterns stored in the storage unit 45 will be explained with reference to FIGS. 3A to 3F. 3A to 3F are examples of waveform patterns of a plurality of AC voltages, respectively.

- Common points of all waveform patterns The common points of all waveform patterns are as follows.

Each waveform pattern shows the waveform (output voltage with respect to time) of the AC voltage applied to the first output terminal 47A with respect to the voltage of the second output terminal 47B to which the reference voltage (0V) is applied.
As shown in FIGS. 3A to 3F, each waveform pattern is a pattern that periodically changes polarity.
The amplitude AP of each waveform pattern is set to be less than 100V at maximum, for example.
The period T of each waveform pattern is set, for example, to 0.2 seconds or more and 10.0 seconds or less.

- Singular points of each waveform pattern Singular points of each waveform pattern are as follows.

The waveform pattern in FIG. 3A is a so-called sine wave.
The waveform pattern in FIG. 3B is a waveform pattern in which a first sine wave with a period T1 and a second sine wave with a period T2 shorter than the period T1 are alternately output.
The waveform pattern in FIG. 3C is a waveform pattern in which a first sine wave with an amplitude AP1 and a period T1 and a second sine wave with an amplitude AP2 smaller than the amplitude AP1 and a period T1 are alternately output.
The waveform pattern in FIG. 3D is a rectangular wave with period T. For example, the duty of this rectangular wave is configured such that the output time of positive polarity is longer than the output time of negative polarity.
The waveform pattern in FIG. 3E is a triangular wave with period T.
The waveform pattern in FIG. 3F is a waveform pattern in which a sine wave with a period T1 and a triangular wave with a period T1 are alternately output.

(Electrical wire)
As shown in FIG. 1, the electric wire 50A is connected at one end 50A1 to the first output terminal 47A. The length of the electric wire 50A is, for example, 0.5 m or more and 10 m or less.
In the case of the electronic device 10 in FIG. 1, by applying an AC voltage from the converter 42, an electric field due to an AC is formed between the other end 50A2 of the electric wire 50A and the second output terminal 47B.
As shown in FIG. 1, a coil (solenoid) 52A is formed in a part of the electric wire 50A. In FIG. 1, the number of turns N of the coil 52A is 4, but this is just an example.
The electric wire 50A is, for example, a string-like member that can be elastically deformed by SW in seawater.
Note that the electric wire 50B, which will be described later, is, for example, a string-like member that can be elastically deformed in seawater SW, similar to the electric wire 50A.

The above is a description of the configuration and functions of the electronic device 10 of this embodiment.

<How to use>
Next, a method of using the electronic device 10 of this embodiment will be described with reference to FIGS. 4, 5, and the like.

(First example)
A first example of how to use the electronic device 10 will be described with reference to FIG. 4. FIG. 4 is a diagram for explaining an example of use when the electronic device 10 is used for sea fishing. In this case, the person using the electronic device 10 is a person who fishes at sea (fisherman (not shown)).
When a fish (not shown) hooks onto the hook (not shown) of the fishing line FL connected to the fishing rod FR used by the angler, the angler opens the opening/closing part 32 of the hook 30 of the electronic device 10. The thread RL is passed through, and then the opening/closing portion 32 is closed to allow the thread RL to pass through the hook 30. Next, the angler lets go of the electronic device 10. As a result, the electronic device 10 sinks into the seawater SW due to its own weight. When the electronic device 10 is submerged in the seawater SW, the current detection sensor of the power switch 48 detects a weak current flowing between the first output terminal 47A and the second output terminal 47B, and direct current is transmitted from the power supply 43 to the conversion unit 42. Supply voltage. Along with this, the generator 40A is activated, and an AC waveform having a preset waveform pattern is output from the output section 47.
As a result of the above operation, between the other end 50A2 of the electric wire 50A in the seawater SW and the second output terminal 47B (near the fish caught on the hook), the amplitude AP is less than 100V and the period T is 0.2s or more. An alternating current electric field is formed for 10.0 seconds or less. Further, since a coil 52A is formed on the electric wire 50A and an alternating current flows through the electric wire 50A, the coil 52A follows the right-handed screw rule around its axis (that is, the coil 52A Depending on the number of turns N, the diameter R, and the magnitude and direction of the current I), an alternating magnetic field is formed (see FIG. 3G). In other words, the coil 52A functions as an electromagnet whose magnetic field changes in opposite directions depending on the direction in which the current flows due to the flow of an alternating current.
In this situation, while the angler is reeling in the fishing line FL with a reel (not shown) and the hooked fish TN approaches the sea surface, when the shark SK approaches the fish TN, the shark SK detects the alternating current electric field and alternating magnetic field formed near the fish TN by the electronic device 10 using the Lorenzini organ. Then, depending on the AC waveform detected, the shark SK determines that the electric field is not caused by the fish TN, and moves away from the fish TN. In addition, by detecting the alternating magnetic field generated from the coil 52A, Shark SK detects a magnetic field in which the alternating magnetic field is superimposed on the previously detected magnetic field from the earth, and as a result, it can judge the validity of the direction in which it should proceed. This is considered to cause confusion. As a result of the above, the shark SK is chased away by the electronic device 10.
The above is an explanation of the first example of the usage method.

(Second example)
A second example of how to use the electronic device 10 will be described with reference to FIG. 5. FIG. 5 is a diagram for explaining an example of use when the electronic device 10 is used for walking in seawater. In this case, the person who uses the electronic device 10 is, for example, a person (fisherman (not shown)) who fishes in the sea by submerging his lower body in seawater SW.
First, before entering the seawater SW, the angler holds the housing 20 by hooking the hook 30 around his waist, for example, and attaches the electric wire 50A to his right leg and the electric wire 50B, which has a coil 52B formed in a part. Secure it to the left leg using the band 60. Specifically, the angler fixes the vicinity of the other end 50A2 of the electric wire 50A to the right leg with the band 60A, and fixes the vicinity of the other end 50B2 of the electric wire 50B to the left leg with the band 60B. Then, when the angler enters the seawater SW, the current detection sensor of the power switch 48 detects a weak current flowing between the first output terminal 47A and the second output terminal 47B, so that the current is transmitted from the power source 43 to the converter 42. Supply DC voltage. Along with this, the generator 40A is activated, and an AC waveform having a preset waveform pattern is output from the output section 47.
As a result of the above operation, an AC electric field with an amplitude AP of less than 100V and a period T of 0.2 seconds or more and 10.0 seconds or less is created between the other end 50A2 of the electric wire 50A and the other end 50B2 of the electric wire 50B in the seawater SW. is formed. Further, since coils 52A and 52B are formed on the electric wire 50A and the electric wire 50B, respectively, and because an alternating current flows through the electric wire 50A and the electric wire 50B, the axis of the coil 52A and the coil 52B is An alternating magnetic field is formed according to the right-handed screw rule (that is, according to the number of turns N and diameter R of the coils 52A and 52B, and the magnitude and direction of the current I) (see FIG. 3G). ).
In this situation, when the angler walks on the seawater SW, the ray RY on the ocean floor detects the alternating current electric field and alternating magnetic field formed near the angler's legs (near the ocean floor) by the electronic device 10 using the Lorenzini organ. do. Then, depending on the AC waveform detected, the ray RY determines that the electric field is not caused by the fish and moves away. In addition, by detecting the alternating magnetic field generated from the coils 52A and 52B, the ray RY detects a magnetic field in which the alternating magnetic field is superimposed on the previously detected magnetic field due to the earth. This is thought to cause confusion in determining validity. As a result of the above, the electronic device 10 drives away the stingray RY.
The above is a description of the second example of the usage method.

The above is an explanation of how to use the electronic device 10 of this embodiment.

<Effect>
Next, the effects of the electronic device 10 of this embodiment will be explained with reference to the drawings.

(First effect)
In the fishing shark repelling device disclosed in Patent Document 1 mentioned above, a DC voltage of 600V is applied to one of the first electrode and the second electrode. When a DC voltage of this magnitude is applied to one of the first electrode and the second electrode, sharks SK and rays RY near the first electrode or the second electrode will react by their Lorenzini organ. It's difficult.
On the other hand, in the electronic device 10 of this embodiment, the amplitude AP of the output AC voltage is set to less than 100V (for example, about 10V). Therefore, sharks SK and rays RY near the output section 47 are more likely to react to their Lorenzini organs. Furthermore, humans and fish having Lorenzini organs near the output section 47 will not be electrocuted.
Moreover, since the coil 52A and/or the coil 52B is formed in the electric wire 50A and/or 50B included in the electronic device 10 of this embodiment, the area around the coil 52A and/or the coil 52B follows the right-handed screw rule. An alternating magnetic field (different from the magnetic field generated by the earth) synchronized with the alternating current I is formed (see FIG. 3G). In particular, in the case of this embodiment, since the electric wires 50A and 50B are string-like members that can be elastically deformed in the seawater SW, the range of the magnetic field around the coil 52A and/or the coil 52B moves in the seawater SW. This changes its axial direction. As a result, sharks SK and rays RY in the vicinity of coil 52A and/or coil 52B detect the generated alternating magnetic field with their Lorenzini organs, which confuses their judgment of the magnetic field received from the earth. Therefore, by using the electronic device 10 of this embodiment, it is possible to chase away approaching sharks SK and rays RY (fish having Lorenzini organs) without electrocuting humans and fishes having Lorenzini organs in the vicinity. Yes (see Figures 4 and 5).

(Second effect)
The electronic device 10 of this embodiment includes a power switch 48 that turns on and off the output from the power source 43 that supplies power to the generator 40A (see FIG. 2). The power switch 48 is configured to supply DC voltage from the power source 43 when the first output terminal 47A and the second output terminal 47B are electrically connected via seawater. Therefore, the electronic device 10 is automatically turned off in the atmosphere, and automatically turned on in the seawater SW.
Therefore, in the electronic device 10 of this embodiment, the user will not receive an electric shock in the atmosphere. Further, the electronic device 10 of this embodiment automatically starts operating in the usage environment.

(Third effect)
In addition to the circuit board 40 that is the basic configuration, the electronic device 10 of this embodiment includes a housing 20 in which an opening 22 is formed, and a hook 30 that has an opening/closing part 32 and is fixed to the housing 20. (See Figures 1 and 4).
Then, the electronic device 10 can be attached to the fishing line FL using this configuration (see FIG. 4).
Therefore, the electronic device 10 of this embodiment can reduce the possibility that the shark SK will bite the fish TN caught by a person when fishing using the fishing rod FR.

(Fourth effect)
As in the second example of the above-mentioned usage method (see FIG. 5), the electronic device 10 of this embodiment has an electric wire 50A attached to the first output terminal 47A of the output section 47, and an electric wire 50B attached to the second output terminal 47B. It can be used. Then, as in the second example, while holding the housing 20 by hooking the hook 30 around the waist, the angler fixes the electric wire 50A to the right leg and the electric wire 50B to the left leg using the band 60. When walking in seawater SW, an alternating current electric field is formed near the angler's legs (near the seabed). Therefore, depending on the AC waveform detected, the ray RY determines that the electric field is not caused by the fish and moves away. In addition, by detecting the alternating magnetic field generated from the coils 52A and 52B (see FIG. 3G), the stingray RY detects a magnetic field in which the alternating magnetic field is superimposed on the previously detected magnetic field from the earth. This causes confusion in determining the validity of the magnetic field received from the earth.
Therefore, according to the electronic device 10 of the present embodiment, it is possible to reduce the possibility that an angler (human) will step on a ray RY on the seabed when walking on the seawater SW.

(Fifth effect)
As described above, the electronic device 10 of the present embodiment alternates between a first sine wave with a period T1 and a second sine wave with a period T2 shorter than the period T1, for example, as shown in the waveform pattern shown in FIG. 3B. The waveform pattern (waveform pattern of composite waves of two or more different periods T) outputted from the output unit 47 may be outputted to form an alternating current electric field in seawater.
Here, it is said that fish having Lorenzini organs, such as sharks SK and rays RY, respond to electric fields that are formed when their prey fish vibrate their bodies as they perform movements such as breathing.
Therefore, when outputting the waveform pattern shown in FIG. 3B, for example, compared to outputting the single sine wave waveform pattern shown in FIG. 3A, unnatural electric fields and /or there is a high possibility that it will be determined that a magnetic field is being formed. Further, according to actual test research conducted by the inventor, this tendency has been observed. Therefore, by outputting a waveform pattern of a composite wave with two or more different periods T, the electronic device 10 of the present embodiment is more effective than outputting an alternating current wave with a single period (a sine wave as an example). , it is possible to drive away approaching sharks SK and rays RY (fish having Lorenzini organs) (see Figures 4 and 5).

(Sixth effect)
As described above, the electronic device 10 of the present embodiment alternates between a first sine wave with an amplitude AP1 and a second sine wave with an amplitude AP2 smaller than the amplitude AP1, for example, as in the waveform pattern shown in FIG. 3C. The waveform pattern (waveform pattern of a composite wave of two or more different amplitudes AP) outputted from the output unit 47 may be outputted to form an alternating current electric field in seawater.
When outputting the waveform pattern shown in FIG. 3C, for example, compared to the case where the single sine wave waveform pattern shown in FIG. 3A is output, unnatural electric fields and/or There is a high possibility that it will be determined that a magnetic field is being formed. Further, according to actual test research conducted by the inventor, this tendency has been observed.
Therefore, the electronic device 10 of the present embodiment outputs a waveform pattern of a composite wave of two or more different amplitudes AP, compared to a case where an alternating current wave with a single period (for example, a sine wave) is output. , it is possible to drive away approaching sharks SK and rays RY (fish having Lorenzini organs) (see Figures 4 and 5).

(Seventh effect)
As described above, the electronic device 10 of the present embodiment has a waveform pattern in which a sine wave with a period T1 and a triangular wave with a period T1 are alternately output (two different waveform patterns, for example, like the waveform pattern shown in FIG. 3F). A waveform pattern of a composite wave of the above waveforms) may be outputted from the output section 47 to form an alternating current electric field in seawater.
When outputting the waveform pattern shown in FIG. 3F, for example, compared to outputting the single sine wave waveform pattern shown in FIG. There is a high possibility that it will be determined that a magnetic field is being formed. Further, according to actual test research conducted by the inventor, this tendency has been observed.
Therefore, by outputting a waveform pattern of a composite wave of two or more different waveforms, the electronic device 10 of the present embodiment can generate a waveform pattern that is a composite wave of two or more different waveforms. It is possible to drive away approaching sharks SK and rays RY (fish with Lorenzini organs) (see Figures 4 and 5).

(Eighth effect)
Furthermore, as described above, the electronic device 10 of this embodiment includes the selection switch 46 (see FIG. 2). Therefore, the user of the electronic device 10 selects one of the AC voltage waveform patterns of the plurality of types of AC waves having different waveforms stored in the storage unit 45 by using the selection switch 46 and outputs the selected waveform pattern to the output unit 47. A waveform pattern selected from can be output.
When a shark SK or ray RY approaches, it is said that in addition to the Lorenzini organ, it uses visual and olfactory senses to comprehensively judge the situation in the seawater. Therefore, if the same waveform pattern is continued to be output, it is thought that sharks SK and rays RY will become accustomed to the waveform pattern detected by the Lorenzini organ (according to test research conducted by the inventors, this tendency is observed).
Therefore, by switching the waveform pattern using the electronic device 10 of the present embodiment, the user can chase away sharks SK and rays RY (fish having Lorenzini organs) over a long period of time.

The above is a description of the effects of the electronic device 10 of this embodiment. Moreover, the above is a description of the electronic device 10 of this embodiment.

≪Magnetic field barrier forming device≫
Next, the configuration and functions, as well as usage and effects of the magnetic field barrier forming apparatus 100 (see FIG. 6) of this embodiment will be described with reference to the drawings. The magnetic field barrier forming apparatus 100 of this embodiment is an application of the electronic device 10 of this embodiment.

<Configuration and functions>
FIG. 6 is a schematic diagram of a magnetic field barrier forming apparatus 100 to which the electronic device 10 of this embodiment is applied. FIG. 7 is a diagram for explaining an example of use of the magnetic field barrier forming device 100 in a fish culture net FN. Furthermore, FIG. 8 is a diagram for explaining another usage example in which the magnetic field barrier forming device 100 is used in a fish culture net FN.

The magnetic field barrier forming apparatus 100 of this embodiment includes a housing 110, an electronic device group 120, and a group control section 130, as shown in FIG. The magnetic field barrier forming device 100 has a function of forming an electric field and magnetic field barrier by arranging the other ends 50A2 and 50B2 of the electric wires 50A and 50B at a predetermined interval in seawater (see FIGS. 7 and 8). ).

(housing)
The housing 110 of this embodiment accommodates therein a plurality of integrally configured generators 40A and a group control section 130, which will be described later.

(electronic equipment group)
The electronic device group 120 of this embodiment is a collection of some of the electronic devices 10 described above (hereinafter referred to as basic units). That is, the electronic device group 120 is composed of a plurality of basic units. Each basic unit includes the aforementioned generator 40A and a pair of electric wires 50A and 50B connected to the generator 40A. In this embodiment, the plurality of generators 40A are integrally configured for convenience. Further, each coil 52A, 52B and each other end 50A2, 50B2 of the plurality of electric wires 50A, 50B are arranged at predetermined intervals in seawater (see FIGS. 6, 7, and 8).

(Group control section)
The group control unit 130 of this embodiment has a function of controlling the waveform of the AC voltage output from each generator 40A that constitutes the electronic device group 120.
A specific example of the control method is as follows.

- First example of control method The group control unit 130 selects any one of the waveform patterns shown in FIGS. 3A to 3F, that is, one of the plurality of waveform patterns stored in each storage unit 45. Each basic unit is made to output any one waveform pattern. In this case, the waveform patterns output by each basic unit have different phases. The group control unit 130 controls, for example, to increase the size in the order in which the other ends 50A2 and 50B2 of each basic unit are arranged in seawater.

- Second example of control method For example, the group control section 130 causes each basic unit to output mutually different waveform patterns among the plurality of waveform patterns stored in each storage section 45.

- Third example of control method The group control section 130 causes each basic unit to output two types of waveform patterns among the plurality of waveform patterns stored in each storage section 45. In this case, the group control unit 130 causes one of all the basic units to output the waveform pattern shown in FIG. 3D, for example, and causes all the remaining basic units to output the waveform pattern shown in FIG. 3A, for example. Then, the group control unit 130 changes the basic unit that outputs the waveform pattern of FIG. 3D, for example, in the order in which the other ends 50A2 and 50B2 of each basic unit are arranged.

- Fourth example of control method The group control section 130 causes each basic unit to output two types of waveform patterns among the plurality of waveform patterns stored in each storage section 45. In this case, the group control unit 130 causes one of all the basic units to output the waveform pattern shown in FIG. 3F, for example, and causes all the remaining basic units to output the waveform pattern shown in FIG. 3D, for example. Then, the group control unit 130 randomly changes the basic unit that outputs the waveform pattern of FIG. 3F, for example.

- Fifth example of control method The group control section 130 causes each basic unit to output a plurality of waveform patterns among the plurality of waveform patterns stored in each storage section 45. In this case, the group control unit 130 changes the waveform pattern output by at least one basic unit among all the basic units at a predetermined timing. The determined timing may be a fixed period, or may be a timing that is randomly changed such as 10s, 40s, 2s, 50s, . . . .

As described above, the group control unit 130 of this embodiment controls at least one waveform and at least one phase of the waveforms of each AC voltage output by each generator 40A to a waveform or phase different from other waveforms or phases. do.

The above is a description of the configuration and functions of the magnetic field barrier forming apparatus 100 of this embodiment.

<How to use and effects>
Next, the method of use and effects of the magnetic field barrier forming apparatus 100 of this embodiment will be explained with reference to FIGS. 6 to 8.

(First example of usage and its effects)
A first example of how to use the magnetic field barrier forming apparatus 100 of this embodiment and its effects will be described with reference to FIG. 6.
For example, the magnetic field barrier forming device 100 is disposed in seawater near a coast used as a beach (not shown) so as to partition the sandy beach side and the distant ocean side. Specifically, both other ends 50A2 and 50B2 of a pair of electric wires 50 included in each electronic device 10 are arranged vertically stacked in seawater, and both other ends 50A2 and 50B2 of a plurality of pairs of electric wires 50 are They are arranged in a vertically intersecting direction.
Then, when each basic unit of the magnetic field barrier forming apparatus 100 is controlled by the group control unit 130 and outputs an AC voltage, the SW in the seawater (for example, when the amplitude AP is less than 100V and the period T is 0.2 seconds or more and 10 seconds or more). An electric field barrier of an alternating voltage (less than 0 s) is formed. In addition, in the seawater SW, each electric wire 50A and 50B is formed with a coil 52A or a coil 52B, so an alternating current magnetic field synchronized with the alternating current I according to the right-handed screw rule is generated around each coil 52A and coil 52B. A magnetic field barrier (a magnetic field different from that generated by the Earth) is formed. For example, even if the shark SK approaches the fish TN near the electric field barrier, it determines that the detected AC waveform is not the electric field caused by the fish TN and moves away from the fish TN. In addition, by detecting the alternating magnetic field generated from each coil 52A, 52B, Shark SK detects a magnetic field in which the alternating magnetic field is superimposed on the previously detected magnetic field from the earth. This is thought to cause confusion in determining gender. As a result of the above, the shark SK is chased away by the electric field barrier and magnetic field barrier formed by the magnetic field barrier forming device 100.

(Second example of usage and its effects)
A second example of how to use the magnetic field barrier forming apparatus 100 of this embodiment and its effects will be described with reference to FIG. 7.
For example, each coil 52A, 52B and each other end 50A2, 50B2 of a plurality of electric wires 50A, 50B are arranged so as to surround the entire circumference of the cylindrical fish culture net FN. Specifically, each coil 52A and each other end 50A2 are arranged near the upper end of the circumferential surface of the fish culture net FN at predetermined intervals over the entire circumference, and each coil 52B and each other The ends 50B2 are arranged near the lower end of the circumferential surface of the fish culture net FN so as to be arranged at predetermined intervals over the entire circumference.
When each basic unit of the magnetic field barrier forming apparatus 100 is controlled by the group control unit 130 and outputs an alternating current voltage, the peripheral surface of the fish culture net FN (for example, when the amplitude AP is less than 100 V and the period T is 0 An electric field barrier of alternating current voltage (for a period of at least .2 seconds and at most 10.0 seconds) is formed. In addition, since each coil 52A, 52B is arranged near the other end 50A2, 50B2, respectively, an alternating current is generated around each coil 52A, 52B according to the right-handed screw rule on the circumferential surface of the fish culture net FN. A magnetic field barrier of an alternating magnetic field synchronized with I is formed. For example, even if the shark SK or the ray RY approaches the fish TN near the electric field barrier, it determines that the detected AC waveform is not the electric field caused by the fish TN and moves away from the fish TN. In addition, by detecting the alternating magnetic field generated from each coil 52A and 52B, the shark SK and the ray RY detect a magnetic field in which the alternating magnetic field is superimposed on the previously detected magnetic field from the earth. This is thought to cause confusion in determining the validity of the direction. As a result of the above, sharks SK and rays RY are chased away by the electric field barrier and magnetic field barrier formed by the magnetic field barrier forming device 100.

(Third example of usage and its effects)
A third example of how to use the magnetic field barrier forming apparatus 100 of this embodiment and its effects will be described with reference to FIG. 8.
For example, all the coils 52A and all the other ends 50A2 of the plurality of electric wires 50A of each basic unit are arranged in the center of the bottom (circle) of the cylindrical fish culture net FN, and all the coils 52A and all other ends 50A2 of the plurality of electric wires 50A of each basic unit are arranged along the entire periphery of the bottom. All the coils 52B and all the other ends 50B2 of the plurality of electric wires 50B are arranged at predetermined intervals. From another perspective, all the coils 52A and the other ends 50A2 of the pair of electric wires 50 included in each electronic device 10 are arranged so as to gather at one point in seawater, and all the coils 52B and all the other ends 50B2 of the pair of electric wires 50 are They are spaced apart from each other so as to form a circumference outside the one point.
When each basic unit of the magnetic field barrier forming device 100 is controlled by the group control unit 130 and outputs an alternating current voltage, the bottom surface of the fish culture net FN (for example, when the amplitude AP is less than 100 V and the period T is 0. An electric field barrier of alternating current voltage (for 2 seconds or more and 10.0 seconds or less) is formed. Moreover, since each coil 52A, 52B is arranged near the other end 50A2, 50B2, respectively, an alternating current I A magnetic field barrier of an alternating magnetic field synchronized with is formed. For example, even if the shark SK or the ray RY approaches the fish TN near the electric field barrier, it determines that the detected AC waveform is not the electric field caused by the fish TN and moves away from the fish TN. In addition, by detecting the alternating magnetic field generated from each coil 52A and 52B, the shark SK and the ray RY detect a magnetic field in which the alternating magnetic field is superimposed on the previously detected magnetic field from the earth. This is thought to cause confusion in determining the validity of the direction. As a result of the above, sharks SK and rays RY are chased away by the electric field barrier and magnetic field barrier formed by the magnetic field barrier forming device 100.

(supplement)
Note that the group control unit 130 can drive away sharks SK and rays RY in the long term by making the output pattern by the electronic device group 120 as in the first to fifth examples of the control method described above. It can drive away multiple species of sharks and rays.

The above is an explanation of the usage method and effects of the magnetic field barrier forming apparatus 100 of this embodiment.

≪Multiple variations≫
As mentioned above, although the present invention has been described by exemplifying the above-described embodiments, it should be noted that the present invention is not limited to the above-described embodiments. For example, the present invention also includes a plurality of modified examples described below.

For example, in the description of the electronic device 10 of the present embodiment, it is assumed that the selection switch 46 for selecting one of the AC voltage waveform patterns stored in the storage unit 45 is mounted on the printed wiring board 41. (See Figure 2). However, as shown in FIG. 9, the selection switch 46 may receive a wireless selection signal SN transmitted from an external wireless terminal RD and be able to select one of a plurality of waveform patterns. . According to this modification, a user on the sea can change the output of the electronic device 10 from a distance. This modification may be further applied to the magnetic field barrier forming apparatus 100.

Further, for example, the selection switch 46 automatically selects one of the plurality of waveform patterns stored in the storage unit 45, depending on the magnitude of the current detected by the current detection sensor of the power switch 48. You can do it like this. Here, the magnitude of the detected current is due to the temperature of the seawater. The types of fish that exist in seawater differ depending on the temperature of the seawater. Therefore, the temperature of the seawater is estimated from the detected current, and the type of fish present is estimated from the temperature of the seawater, and an AC electric field is output that has a waveform different from the waveform of the electric field formed by the fish. By controlling the voltage, it is possible to drive away sharks and the like more effectively. In this case, the relationship between the current, the temperature of the seawater, the type of fish present, and the waveform of the electric field formed by the fish is stored in advance in the storage unit 45, so that the control of this modification is possible. I can record the realization.

In the second example of how to use the electronic device 10, it is assumed that the person using the electronic device 10 is a person (fisherman (not shown)) who submerges his lower body in seawater SW for sea fishing ( (See Figure 5). However, the person using the electronic device 10 may be, for example, a surfer or a person who immerses in seawater SW for some reason.

Further, for example, in the above description of the magnetic field barrier forming device 100, the second example (see FIG. 7) and the third example (see FIG. 8) were explained separately, but as a modified example of the electric field barrier device 100, may be a device that combines these.

Further, for example, in the above description of the magnetic field barrier forming device 100, if the other ends 50A2, 50B2 of the plurality of electric wires 50A, 50B are arranged so as to surround the entire circumference of the fish culture net FN, for example, did. However, the plurality of electric wires 50A and 50B may be part of the fish culture net FN.

Furthermore, for example, in the electronic device 10 described above, the description has been made as if the coil 52A or the coil 52B is formed on the electric wire 50A and/or the electric wire 50B, that is, one coil is formed on one electric wire. However, if the electronic device 10 starts operating and allows current to flow between the first output terminal 47A and the second output terminal 47B, two or more coils are formed in each of the electric wires 50A and 50B. It's okay. Here, the modified electronic device 10A shown in FIG. 10A shows an example in which two coils 52A are formed on the electric wire 50A. According to this modification, two magnetic fields formed by each coil 52A can be formed along different axial directions as the electric wire 50A is bent in the seawater SW. Therefore, in fish having the Lorenzini organ, such as sharks SK and rays RY, two magnetic fields formed along different axial directions cause confusion in determining the appropriateness of the direction in which to proceed.

Moreover, in the modified example of FIG. 10A, two coils 52A each having the same shape are formed on the electric wire 50A. However, the shape, number of turns, radius (or diameter), winding pitch, etc. of two or more coils may be different from each other. That is, when forming a plurality of coils on one electric wire 50A, 50B, the coils may have different inductances. As a result, the strength of the magnetic field formed by each coil differs, so fish with Lorenzini organs, such as sharks SK and rays RY, are able to This creates confusion in determining the appropriateness of the direction in which we should proceed.

Moreover, in the modified example of FIG. 10A, two coils 52A each having the same shape are formed on the electric wire 50A. Since the two coils 52A can constantly move due to the influence of the seawater SW, the axial direction of the magnetic field generated by each coil can constantly change.
Here, as in the electronic device 10B shown in FIG. 10B, a holder 54 that holds the electric wire 50A in a bent state may be attached to a portion of the electric wire 50A between the two coils 52A. Further, the function of the holder 54, that is, the function of bending the electric wire 50A, may be imparted to the electric wire 50A itself by plastically deforming a portion of the electric wire 50A between the two coils 52A. According to this modification, the axial directions of the two coils 52A are difficult to match regardless of the influence of the seawater SW.

10 Electronic device 10A Electronic device 10B Electronic device 20 Housing 22 Opening 30 Hook 32 Opening/closing part 40 Circuit board 40A Generator 41 Printed wiring board 42 Conversion part
43 Power supply 44 Control unit 45 Storage unit 46 Selection switch 47 Output unit 47A First output terminal 47B Second output terminal 48 Power switch 50 Pair of electric wires 50A Electric wire 50A1 One end 50A2 Other end 50B Electric wire 50B1 One end 50B2 Other end 52A Coil (solenoid)
52B coil (solenoid)
54 Holder 60 Band 60A Band 60B Band 100 Electric field barrier forming device 110 Housing 120 Electronic equipment group 130 Group control unit AP Amplitude AP1 Amplitude AP2 Amplitude FL Fishing line FR Fishing rod RY Ray RD Wireless terminal SK Shark SN Selection signal T Period T1 Period T2 Period TN fish

Claims (9)

In electronic equipment for repelling fish with Lorenzini organs,
a generator having an output section including a power supply and a first output terminal and a second output terminal, converting a DC voltage supplied from the power supply into an AC voltage and outputting it from the output section;
at least one electric wire, one end of which is connected to one or both of the first output terminal and the second output terminal, and in which at least one or more coils are formed;
A switch that configures an electric circuit together with the generator and the electric wire to turn on and off the output from the power source, the first output terminal and the second output terminal being electrically connected via seawater. a power switch for supplying DC voltage from the power source;
Equipped with
Electronics. The at least one electric wire has a string shape that can be elastically deformed in seawater,
The at least one or more coils are two or more coils formed at mutually distant parts of the electric wire,
The electronic device according to claim 1. The two or more coils have different inductances,
The electronic device according to claim 2. The waveform of the AC voltage output by the generator is a composite wave obtained by superimposing multiple types of AC waveforms.
The electronic device according to claim 1. The plurality of types of AC waveforms constituting the composite wave differ from each other in all or at least one of amplitude, period, and phase.
The electronic device according to claim 4. The generator further includes a storage unit that stores AC voltage patterns of multiple types of AC waves having different waveforms as AC voltages to be output from the output unit, and a storage unit that stores the patterns stored in the storage unit. having a selection switch to select any pattern from;
The electronic device according to claim 1. The selection switch is capable of receiving a wireless selection signal from the outside and selecting one of the patterns.
The electronic device according to claim 6. In a magnetic field barrier forming device that forms a magnetic field barrier to repel fish having Lorenzini organs,
An electronic device group each comprising the electronic device according to any one of claims 1 to 7, wherein: (1) the at least one electric wire of each electronic device has one end connected to the first output; a pair of electric wires connected to each of the terminal and the second output terminal, (2) both other ends of the pair of electric wires included in each electronic device are arranged vertically stacked in seawater; ) A group of electronic devices in which both other ends of the plurality of pairs of electric wires are arranged side by side over the entire circumference in the circumferential direction ;
a group control unit that controls a waveform of an AC voltage output from a generator included in each of the plurality of electronic devices constituting the electronic device group;
Equipped with
Magnetic field barrier forming device. In a magnetic field barrier forming device that forms a magnetic field barrier to repel fish having Lorenzini organs,
An electronic device group each comprising the electronic device according to any one of claims 1 to 7, wherein: (1) the at least one electric wire of each electronic device has one end connected to the first output; A pair of electric wires are connected to each of the terminal and the second output terminal, and (2) the other end of one of the pair of electric wires included in each electronic device is arranged so as to converge at one point in seawater, and the other end of the pair of electric wires is the other end is a group of electronic devices arranged apart from each other so as to form a circumference outside the one point;
a group control unit that controls a waveform of an AC voltage output from a generator included in each of the plurality of electronic devices constituting the electronic device group;
Equipped with
Magnetic field barrier forming device.