JP6868891B2 - Electrode device - Google Patents

Description

The present invention relates to an electrode device.

Fish farming, especially the so-called subdivision-type aquaculture that is widely practiced at present, sets up a farm by providing a closed section surrounded by a net, that is, a cage, in water such as the sea. It is carried out through the process of raising fish inside, catching and shipping when the fish have grown to a stage sufficient for shipping.

In the whole process of fish farming, it is often necessary for a person to go to the cage via a boat and work on the spot. For example, when feeding fish, when maintaining nets, when first putting fish in a cage, when finally catching fish, and so on.

Hereinafter, the fish whose purpose is to be cultivated will be referred to as aquaculture fish.

In order to improve the work efficiency of fish farming in such a farm, for example, among the above-mentioned works, a net that suppresses deposits is known for the purpose of improving the maintainability of the net (Patent Document 1). ..

It is also known that an electric fence is installed in the sea in order to eliminate the need for net maintenance itself (Patent Document 2).

Japanese Unexamined Patent Publication No. 6-153744 Japanese Unexamined Patent Publication No. 5-123079

In this way, taking various measures for the net used for aquaculture has a certain effect on improving the maintainability of the net, but it has no effect on other work. It does not play.
Moreover, even if an electric fence is installed in water, from the viewpoint of fish movement, it cannot exert any effect other than the effect of limiting the range of free movement of fish brought about by the net.

On the other hand, each type of fish has a suitable breeding environment according to various natural conditions such as water temperature and water quality. Choosing a place with natural conditions according to the type of farmed fish is one of the most important factors for increasing the productivity of farmed fish in the farm.

However, when actually setting up a farm, it is not possible to select a farm based solely on natural conditions, in consideration of the condition that people have to go there and work as described above. , There is no choice but to add the additional condition that it can be accessed by ship. Therefore, in the past, in practice, there was no choice but to select a place with more favorable natural conditions within the limitation of good access to some extent.

In addition, when a person actually goes to the cage to perform the work, such as feeding the farmed fish with food or medicine, or catching the farmed fish for shipping, it is possible to get on the boat and carry out the work. Going itself was dangerous and hard work. Therefore, getting on a ship and going to the cage to do the work itself has been a cause of making it difficult to improve productivity.

Furthermore, even if there is work that you want to do according to the growth state of the fish, water temperature, time, etc., if you can not leave the ship due to the influence of the weather, you may miss the optimum timing of the work. there were. If the timing is missed in this way, it has an unfavorable effect on the growth of fish and is a factor that hinders the improvement of productivity.

Therefore, the problem to be solved by the present invention is a device or electrode device, method, system for guiding a fish / school of fish in a desired direction while avoiding direct contact with the fish through a net or the like as much as possible. Is to provide.
It is also to provide devices or electrode devices, methods and systems that can reduce the need for ship access to the farm by automating the manual work involved in fish farming.

(Electrode device)
The electrode device according to the present invention has an electrode means to which an electric pulse is applied and a fixing means for fixing the electrode means to a desired installation position in water, and when the electric pulse is applied, a fish. An electric field is formed in the water to induce the pulse.

According to such an embodiment, when an electric pulse is applied to the electrode means, an electric field is formed in the water, and an electric stimulus is given to the fish through the electric field so that the fish escapes from the electric stimulus. By urging, the fish can be guided in the desired direction. In this way, by inducing fish by electrical stimulation, it is possible to significantly reduce the frequency with which people go to the fish on a boat to perform work, so the labor and cost of manual work involved in fish farming can be significantly reduced. Can be significantly reduced, and thus the productivity of aquaculture can be significantly improved.

Further, since the fish is guided by the electric field formed by the electric pulse, the farmed fish can be prevented from being injured without directly touching the fish like a net when guiding the fish. Therefore, the quality of the farmed fish to be shipped can be improved, and it is possible to contribute to the improvement of productivity in terms of quality.

Furthermore, the electric field formed by the electric pulse is not a mesh-like obstacle unlike the conventional fence made of a net, so that the fish trying to pass through the region where the electric field is formed regardless of the size of the fish. It can block movement and guide fish.

The electrode means includes a linear portion having at least a partially conductive and corrosion resistant surface.

According to such an embodiment, the electrode means can generate an electric field in the water by the electric pulse applied to the electrode means by the conductive surface, and is installed in the water by the corrosion resistant surface. It is possible to prevent deterioration of the electrode means due to the corrosion.

Further, since the electrode means has a linear portion, the structure of the electrode means can be simplified, the shape is simplified as compared with the mesh-like structure of the conventional net, and the maintainability is improved.

The linear portion includes a flexible pipe or wire.

With such a configuration, since the pipe or wire has a relatively thin shape, the linear portion is less likely to receive the force of the water flow in water. Further, by having flexibility, the force of the water flow can be suitably passed. Therefore, it is possible to prevent the electrode means from being deformed and damaged in water or the installation position of the electrode means from being displaced.

Further, since it has flexibility, it can be handled in a wound state when the electrode means is transported before and after installing the electrode means in water, and the handling of the electrode means becomes easy.

A braided wire pipe or wire formed by knitting a plurality of strands including a conductive strand into such a pipe or wire can be preferably used. According to such a braided wire pipe or wire, water can pass between the braided wires, so that the force of the water flow can be appropriately released, and since it is composed of the braided wires, the wires can be used. By changing the material, thickness, combination thereof, and / or knitting method, etc., the flexibility of the pipe or wire can be widely adjusted.

Further, the linear portion having a conductive and corrosion-resistant surface is, for example, a linear, solid conductor rod or hollow conductor pipe, or a flexible conductor wire, and is linear. It may be pulled and supported.

Further, it is sufficient that at least a part of the surface is conductive and corrosion resistant, and the inside and other parts of the surface may be non-conductors such as plastic, concrete, and earth and sand.

The linear portion is supported on the upper side by a supporting means and on the lower side by a fixing means.

With such a configuration, the linear portion can be stretched between the fixing means provided at the lower portion of the linear portion and the float provided at the upper portion. That is, it is supported in a state where a linear portion is stretched between the fixing means and the float. The tension applied to the linear portion between the fixing means and the float holds the flexible linear portion linearly. Therefore, by holding the linear portion serving as the electrode means in a straight line, the distance between the adjacent electrode means is kept within a certain range when a plurality of electrode means are arranged side by side, and therefore, the distance between the adjacent electrode means is kept within a certain range. An electric field having a constant strength can be formed in the longitudinal direction of the electrode means.

The fixing means includes a float.

With such a configuration, the linear portion is supported in a taut state between the float and the fixing means by the buoyancy applied to the float. The tension applied to the linear portion between the fixing means and the float holds the linear portion linearly.

In addition, by making this float visible from the surface of the water, it can be used as a mark for a ship navigating on the surface of the water to recognize that an electrode device is installed there, which enables safe navigation of the ship. , Both the safety of farmed fish can be guaranteed. Further, the float may have a light emitting body such as a light such as a so-called buoy.

The fixing means has a weight capable of fixing the electrode means in water.

With such a configuration, the electrode means can be easily installed at a desired position in the water simply by submerging the fixing means in the water.

The fixing means has a fixing portion fixed to the bottom of the water.

With such a configuration, the fixing means can be firmly fixed to the bottom of the water via the fixing portion, and thus the electrode means can be more firmly fixed to the water. Therefore, even if a large force is applied to the electrode means, such as when the water flow is strong, the electrode means does not shift.

The fixing portion may have a structure in which the fixing means is connected and fixed to a pedestal fixed to the ground of the bottom of the water by stakeout or the like.

The electrode device has a connecting portion that detachably connects the electrode means and the fixing means.

According to such an embodiment, since the electrode means and the fixing means can be detachably connected to each other, the electrode means can be removed from the fixing means when the electrode means is maintained. For example, when the electrode means is corroded or the deposits deposited on the electrode means reach a certain level (amount) and a desired electric field cannot be obtained, the electrode means is removed from the fixing means. The electrode means can be pulled out of the water for maintenance. Further, a new electrode means can be immediately connected to the fixing means from which the electrode means has been removed, and the electrode device can be used again.

Further, since the electrode means is configured to be able to form an electric field in water, it is inevitably affected by electrolytic corrosion and the like. Therefore, it requires more frequent maintenance than the fixing means, and its life is inevitably shortened. Then, if replacement / maintenance is performed while the electrode means and the fixing means are connected, the fixing means is pulled out of the water in a short cycle that is not originally necessary for the fixing means, and in some cases, the fixing means is replaced together with the electrode means. It will be inefficient. If the electrode means and the fixing means are detachably connected, the electrode means can be pulled out of the water as needed while the fixing means is left in the water for maintenance and / or replacement, which is efficient. Good.

Further, since the fixing means is configured so that the electrode means can be fixed in water against the buoyancy applied to the fixing means itself and the electrode means, a great deal of labor is required to pull it up. .. On the other hand, since the electrode means can be pulled up relatively easily, if the electrode means can be pulled up separately from the fixing means, the labor required for pulling up can be reduced.

Further, if the connecting portion is configured so that the fixing means and the electrode means can be connected in water, the electrode means and the fixing means previously installed in water can be connected in water. That is, for example, when replacing the electrode means used in water, the fixing means is left in its place, only the electrode means is removed, and a new electrode means is attached to the remaining fixing means, so that the fixing means can be easily restored. The electrode means can be installed at the position of.

The electrode device is provided with a battery module.

With such a configuration, the battery provided in the electrode device can supply the electric power required for the operation of the electrode device. Therefore, it is possible to save the trouble of laying electric wires for supplying electric power to a plurality of electrode devices installed underwater.

For example, this battery module can include a solar cell and a storage battery, and the electric power generated in the daytime by the solar cell is stored in the storage battery and is constantly required for the electrode device via the battery module. Can supply electricity.

Further, the battery module may include a tidal power generator and a wind power generator. Further, if a plurality of different types of power generation means are provided, it is possible to stably supply electric power without, for example, a storage battery.

Further, one battery module may be provided for several electrode devices. According to such a configuration, only a small number of electrode devices installed in the vicinity need to be connected by electric wires to one battery module, so that each electrode device constituting the culture system needs to be connected one by one. The number of battery modules can be saved compared to connecting the battery modules, and it is not necessary to lay the electric wires over a wide area so as to cover all the electrode devices, so that the electric wires can be easily laid.

The electrode device is provided with a communication module that communicates with a control unit that controls the electric pulse.

By having such a configuration, when a control unit that collectively controls the electric pulses applied to the respective electrode means of the plurality of electrode devices is provided, the control unit and the control unit are provided via this communication module. A control signal can be exchanged with each electrode device, and the electric pulse applied to the plurality of electrode devices can be appropriately adjusted and controlled so as to guide the farmed fish in a desired direction.

Further, by making this communication module a wireless communication module that communicates via wireless communication, it is possible to save the trouble of laying an electric wire for communication of a control signal between the control unit and the electrode device.

A plurality of the electrode devices are arranged in water at intervals from each other, and the fish is guided between adjacent electrode devices via an electric field formed in the water by an electric pulse applied to the electrode means. ..

With such a configuration, it is possible to apply an electric pulse between the adjacent electrode means and guide the fish by the electric field generated between the adjacent electrode means. That is, the fish that approaches the electrode means to which the electric pulse is applied and tries to pass between the two electrodes where the electric field is generated is given an electric stimulus, and the fish can pass between the two electrode means. It disappears.

The plurality of electrode devices are arranged so that a compartment for confining fish is formed by an electric field formed in water by the electric pulse.

By having such a configuration, for example, a cage area for breeding fish, an entrance / exit that allows fish to enter and exit the cage area, and a taxiway that communicates with the cage area through the entrance are formed. The electrode device can be arranged as such. Therefore, at the boundary of this cage region, an electrical barrier can be formed for organisms in the water such as fish, and the fish in the cage region, for example, aquaculture fish are guided to be confined in the cage region. However, it is possible to prevent foreign enemies such as unintended fish and other creatures from outside the cage area from invading the cage area. At that time, unlike the cage provided by the conventional net, it is possible to prevent the invasion of the foreign enemy regardless of the size of the foreign enemy.

Further, by forming an entrance / exit in this cage region, fish can enter and exit from the cage region to the taxiway and / or from the guideway to the cage region through this entrance / exit.

Furthermore, since a taxiway that communicates with the cage area is formed, a path leading to the cage area is formed, and by guiding the fish in this taxiway, the fish can enter the cage area from the guideway through the entrance and exit. Alternatively, it is possible to take the fish out of the cage area through the doorway and guide it to a desired place through the taxiway.

(Fish farming system)
The fish farming system using the electrode device according to the present invention includes a plurality of electrode means installed in water and a control means for controlling an electric pulse applied to the electrode means, and is provided by the plurality of electrode means. The fish are guided by the electric field formed by the electric pulse in the formed region.

According to such an embodiment, by applying an electric pulse controlled by the control means to the electrode means, an electric field can be formed in the water, and the fish is electrically stimulated through the electric field to give the fish an electric stimulus. By encouraging the fish to escape from this electrical stimulus, the fish can be guided in the desired direction. In this way, by guiding the fish by the electrical stimulation controlled by the control means, it is possible to significantly reduce the frequency of people getting on the boat and going to the fish to work, so that the labor involved in fish farming can be significantly reduced. It is possible to significantly reduce the labor and cost of the work, and thus the productivity of aquaculture can be significantly improved.

Further, since the fish is guided by the electric field formed by the electric pulse, the farmed fish can be prevented from being injured without directly touching the fish like a net when guiding the fish. Therefore, the quality of the farmed fish to be shipped can be improved, and it is possible to contribute to the improvement of productivity in terms of quality.

Furthermore, the electric field formed by the electric pulse is not a mesh-like obstacle unlike the conventional fence made of a net, so that the fish trying to pass through the region where the electric field is formed regardless of the size of the fish. It can block movement and guide fish.

The electrode means has an electric field formed by the electric pulse, a cage region for breeding fish, an entrance / exit that allows fish to enter and exit the cage region, and an induction that communicates with the cage region through the entrance / exit. It is arranged so as to form a road.

According to such an embodiment, since the cage region is formed by the electric field generated by the electric pulse, it is possible to form an electrical barrier for organisms in water such as fish at the boundary of the cage region. It is possible to induce fish in the cage area, such as farmed fish, to be confined in the cage area and prevent foreign enemies such as unintended fish and other organisms from outside the cage area from invading the cage area. Can be done. At that time, unlike the cage provided by the conventional net, it is possible to prevent the invasion of the foreign enemy regardless of the size of the foreign enemy.

Further, by forming an entrance / exit in this cage region, fish can enter and exit from the cage region to the taxiway and / or from the guideway to the cage region through this entrance / exit.

Furthermore, since a taxiway that communicates with the cage area is formed, a path leading to the cage area is formed, and by guiding the fish in this taxiway, the fish can enter the cage area from the guideway through the entrance and exit. Alternatively, it is possible to take the fish out of the cage area through the doorway and guide it to a desired place through the taxiway.

The control means controls the electric pulse applied to the electrode means arranged at the position of the entrance / exit among the plurality of electrode means to switch the opening / closing of the entrance / exit.

According to such an embodiment, since the doorway is opened and closed by the control means, when the farmed fish is to be moved back and forth between the taxiway and the cage area, the doorway is opened and the farmed fish is not allowed to enter and exit. In some cases, the doorway can be closed. Therefore, the doorway can be easily opened and closed, and it is not necessary for a person to go to the cage area to work.

The electric pulse is applied between one of the plurality of electrode means and another adjacent electrode means to generate an electric field between the two electrode means.

According to such an embodiment, an electric pulse can be applied between the electrode means adjacent to each other, and the fish can be guided by the electric field generated between the electrode means adjacent to each other. That is, the fish that approaches the electrode means to which the electric pulse is applied and tries to pass between the two electrodes where the electric field is generated is given an electric stimulus, and the fish can pass between the two electrode means. It disappears.

The average voltage or average current of the electric pulse is set by the control means so as to decrease in the direction in which the fish is to be guided.

According to such an embodiment, since the average voltage or average current of the electric pulse applied to the electrode means decreases in the direction in which the fish is to be guided, the electrical stimulation given to the fish also induces the fish. It weakens in the direction you are trying. Therefore, fish that try to move away from the direction to be guided or fish that are farther from the direction to be guided will receive stronger electrical stimulation, and if they escape to the weaker electrical stimulation, they will naturally escape. It will move in the direction to be guided, that is, in the target direction.

The electric pulse is applied periodically, and the average voltage or the average current is set by adjusting at least one of the peak value, the duty ratio, and the frequency of the electric pulse.

According to such an embodiment, the average voltage or the average current of the electric pulse can be easily and appropriately adjusted according to the peak value, the duty ratio, the frequency, and the like of the electric pulse.

Further, by appropriately adjusting the above parameters according to the type, size, and ecology of the fish to be guided, the target fish can be more preferably guided even with the same average voltage or average current.

Further, by adjusting various parameters in this way to control the resulting average voltage or average current, even if the average voltage or average current is the same, the electrode means can be damaged more, for example, as will be described later. Parameters that are unlikely to occur can be selected as appropriate.

The electric pulse is periodically applied by alternating the polarities between the two electrode means.

According to such an embodiment, electric pulses are applied between adjacent electrode means with their polarities alternately reversed. Therefore, by applying electricity to the electrode means in water, particularly in seawater, one is applied. It is possible to reduce the damage caused to the hit electrode means. Damage caused by the outflow of ions from the electrode means, corrosion due to oxidation, precipitation of components contained in water, etc. caused by applying electricity to the electrode means in water is neutralized by alternating electric pulses. It can be averaged between the electrode means so that the damage is not concentrated on a specific electrode means. Therefore, the maintainability of the electrode means is improved.

The electrode means is arranged so that the taxiway extends from the entrance / exit of the cage region toward the port, and the control means guides the fish from the port toward the cage region in the taxiway. The electrical pulse is controlled to guide and / or guide the fish from the cage area to the harbor.

According to such an embodiment, the taxiway is provided so as to connect the port and the cage area, so that the fish, for example, the farmed fish in the state of a young fish and / or the fish to be fed to the farmed fish, can be used. It can be discharged from the port into the taxiway, guided in the taxiway toward the cage area, and guided into the cage. Therefore, unlike the conventional case, it is not necessary for a person to go to the cage and put young fish and / or bait fish into the cage. Therefore, the work becomes efficient and the productivity of aquaculture can be improved.

In addition, when the farmed fish in the cage grows to a state suitable for shipping, it can be guided from the cage to the harbor through the guideway or to the area suitable for catching the farmed fish on the way, and a person can go to the ship. Work efficiency is improved because farmed fish can be caught in the harbor or in a convenient area on the way without having to ride to the cage.

(How to guide fish)
In the method for inducing fish using the electrode device according to the present invention, a plurality of electrode means are arranged in water so as to be separated from each other, an electric pulse is applied to the electrode means, and the electric pulse is generated among the plurality of electrode means. An electric field is generated between the applied electrode means and the adjacent electrode means, and the fish is guided by the electric field.

According to such an embodiment, by applying an electric pulse to the electrode means, an electric field can be formed in the water, and the fish is given an electric stimulus through the electric field, and the fish escapes from this electric stimulus. By prompting the fish, the fish can be guided in a desired direction.

That is, the electric field generated between the two adjacent electrode means approaches the electrode means to which the electric pulse is applied, and the fish trying to pass between the two electrodes where the electric field is generated is given an electric stimulus. The fish will not be able to pass between the two electrode means.
In this way, by guiding the fish by the electrical stimulation controlled by the control means, it is possible to significantly reduce the frequency with which a person goes to the fish on a boat and performs work, so that the manpower required for fish farming can be significantly reduced. It is possible to significantly reduce the labor and cost of the work, and thus the productivity of aquaculture can be significantly improved.

Further, since the fish is guided by the electric field formed by the electric pulse, the farmed fish can be prevented from being injured without directly touching the fish like a net when guiding the fish. Therefore, the quality of the farmed fish to be shipped can be improved, and it is possible to contribute to the improvement of productivity in terms of quality.

Furthermore, the electric field formed by the electric pulse is not a mesh-like obstacle unlike the conventional fence made of a net, so that the fish trying to pass through the region where the electric field is formed regardless of the size of the fish. It can block movement and guide fish.

The average voltage or average current of the electric pulse is set to decrease in the direction in which the fish is to be guided.

According to such an embodiment, since the average voltage or average current of the electric pulse applied to the electrode means decreases in the direction in which the fish is to be guided, the electrical stimulation given to the fish also induces the fish. It weakens in the direction you are trying. Therefore, fish that try to move away from the direction to be guided or fish that are farther from the direction to be guided will receive stronger electrical stimulation, and if they escape to the weaker electrical stimulation, they will naturally escape. It will move in the direction to be guided, that is, in the target direction. That is, the fish can be guided in a desired direction by utilizing the fact that the fish tries to move to a place where the electrical stimulation is weaker.

The electric pulse is applied to the electrode means so that the polarities of the electric pulses are sequentially exchanged between adjacent electrode means among the plurality of electrode means.

According to such an embodiment, electric pulses are applied between adjacent electrode means with their polarities alternately reversed. Therefore, by applying electricity to the electrode means in water, particularly in seawater, one is applied. It is possible to reduce the damage caused to the hit electrode means. Damage caused by the outflow of ions from the electrode means and the precipitation of components contained in water caused by applying electricity to the electrode means in water can be neutralized by alternating electric pulses, or the electrodes can be used. It is possible to average the means so that the damage is not concentrated on a specific electrode means. Therefore, the maintainability of the electrode means is improved.

The average voltage or average current of the electric pulse is set by adjusting at least one of the peak value, the duty ratio, and the frequency of the electric pulse.

According to such an embodiment, the average voltage or current of the electric pulse can be easily and appropriately adjusted according to the peak value, the duty ratio, the frequency, and the like of the electric pulse.

The degree of electrical stimulation felt by the fish by the electrical pulse, or the effect on the fish, that is, the sensitivity / sensitivity to the electrical stimulation, depends on the type, size and / or various organs of the fish, such as gills, fins, swim bladders, etc. It depends. By adjusting the average voltage or current of the electric pulse according to the peak value, duty ratio, frequency, etc. of the electric pulse, the sensitivity of the fish type, size and / or various organs even if the average voltage or current is the same. It is possible to appropriately control the degree of stimulation that the fish receives according to the unique individuality such as.

By appropriately adjusting the above parameters according to the type, size, and ecology of the fish to be induced, the target fish can be more preferably induced even with the same average voltage or average current.

Further, by adjusting various parameters in this way to control the resulting average voltage or average current, parameters that are less likely to cause damage to the electrode means are appropriately selected even if the average voltage or average current is the same. can do.

The electrode means is communicated with the cage region for breeding fish by the electric field formed by the electric pulse, an entrance / exit that allows fish to enter / exit the cage region, and the cage region via the entrance / exit. Arrange so as to form a taxiway.

According to such an embodiment, since the cage region is formed by the electric field generated by the electric pulse, it is possible to form an electrical barrier for organisms in water such as fish at the boundary of the cage region. It is possible to induce fish in the cage area, such as farmed fish, to be confined in the cage area and prevent foreign enemies such as unintended fish and other organisms from outside the cage area from invading the cage area. Can be done. At that time, unlike the cage provided by the conventional net, it is possible to prevent the invasion of the foreign enemy regardless of the size of the foreign enemy.

Further, by forming an entrance / exit in this cage region, fish can enter and exit from the cage region to the taxiway and / or from the guideway to the cage region through this entrance / exit.

Furthermore, since a taxiway that communicates with the cage area is formed, a path leading to the cage area is formed, and by guiding the fish in this taxiway, the fish can enter the cage area from the guideway through the entrance and exit. Alternatively, it is possible to take the fish out of the cage area through the doorway and guide it to a desired place through the taxiway.

It is a figure which shows the outline of one Embodiment of the fish farming system which concerns on this invention. It is a figure which illustrates the electric pulse applied to the electrode means. It is a figure for demonstrating the principle of the induction method used in the culture system of this invention. It is a figure which illustrates one embodiment of the arrangement of the electrode means 10 which forms a taxiway 12c. It is a figure which shows another embodiment of the arrangement of the electrode means 10 in a taxiway 12c. It is a figure which shows yet another embodiment of the arrangement of the electrode means 10 in a guideway 12c. It is a figure which shows the example of the case where one electrode means fails in the embodiment of FIG. It is a figure which shows one Embodiment of an electrode device 70. It is a figure which shows another embodiment of the electrode device 70. It is a figure which shows the further embodiment of this invention.

FIG. 1 is a diagram schematically showing an embodiment of a fish farming system according to the present invention. FIG. 1 shows an example in which a fish farming system 1 is provided in the sea 2. The fish farming system 1 includes a plurality of electrode means 10 installed in water and a control means (not shown) that controls an electric pulse applied to each electrode means 10. The fish is guided by the electric field formed by the electric pulse in the region 12 surrounded by the plurality of electrode means 10.

In FIG. 1, a plurality of electrode means 10 are arranged at intervals from each other on the outside and inside of the bay separated by the embankments 14a and 14b. The region 12 surrounded by the plurality of electrode means 10 forms a cage region 12a and a taxiway 12c that communicates with the cage region 12a via the entrance / exit 12b and extends from the cage region 12a toward the port 16. .. Although FIG. 1 shows an example in which the electrode means 10 is arranged mainly along the contour of the cage region 12a, the entrance / exit 12b, and the taxiway 12c, the electrode means 10 has the cage region and the entrance / exit. , And / or may be arranged in a matrix, for example, in a region that can serve as a taxiway. In such a case, an electric pulse is applied to the electrode means arranged in the cage region, the entrance / exit, and / or the position corresponding to the position where the taxiway is desired to be formed from the electrode means arranged in the matrix. By doing so, a cage region, an entrance / exit, and a taxiway can be formed in a desired region. For example, the position of the cage area, doorway, and taxiway can be changed according to various conditions such as season, water temperature, water flow condition, food distribution condition, and at that time, just like nomads graze sheep. The fish can be guided to the most suitable area.

By applying an electric pulse to the plurality of electrode means 10 arranged at intervals from each other in the water in this way, an electric field is generated in the water, and the fish is guided by the generated electric field.

When an electric field is generated in water by applying an electric pulse to the electrode means 10, an electric stimulus is given to the fish in the region where the electric field is generated. By adjusting the intensity, period, frequency, etc. of this electric pulse, it is possible to generate a type of stimulus that the target fish dislikes. In other words, an electric pulse that creates an electric field that gives an electric stimulus that fish dislike is applied to the electrode means to create a region around the electrode means that the fish do not approach, and a barrier due to the electric field is formed.

The strength of the electric field formed in water by applying an electric pulse to the electrode means 10 increases as the distance from the electrode means 10 decreases, and decreases as the distance increases. Furthermore, as the strength of the electric field increases, so does the strength of the electrical stimulation felt by the fish. Therefore, when an electric pulse is applied to a certain electrode means 10, the fish closer to the electrode means 10 receive a larger electric stimulus. Therefore, when an electric pulse is applied to a certain electrode means 10, the fish tries to escape in a direction in which the electric stimulus is weak and naturally moves in a direction away from the electrode means 10, so that the fish can be guided. ..

By appropriately selecting the electrode means to which the electric pulse should be applied from the plurality of electrode means and appropriately selecting the parameter of each electric pulse applied to each electrode means according to the position of each electrode means. , A barrier / region where the fish cannot enter is formed at a desired position by an electric field of a desired width to guide the fish.

FIG. 2 is a diagram illustrating an electric pulse applied to the electrode means. For example, an electric pulse as shown in FIGS. 2A, 2B or 2C is applied to one of the adjacent electrode means 10. FIG. 2A shows an example of a square wave, and FIGS. 2B and 2C show an example of a sine wave. In each of FIGS. 2A to 2C, an electric pulse having a peak value A [V] or [A] is applied only during the period t [sec] within the period T [sec]. That is, the duty ratio in this case is D = t / T, and the frequency is 1 / T [Hz]. These parameters such as peak value, duty ratio, and frequency are adjusted to set the average voltage or average current of the electric pulse. By adjusting these parameters so as to provide an electrical stimulus suitable for the fish to be induced, and by adjusting the average voltage or the average current according to the position of the electrode means 10 to which the electric pulse is applied. , Give appropriate stimulation to the target organ of the target fish. Note that FIG. 2C shows an example in which a sine wave in which the peak value A gradually decreases is applied during the period t. In FIG. 2C, the maximum crest value is shown as a representative value of the crest value A. In this way, the peak value A may change within the period t. Further, even when the peak value A becomes negative, the average voltage or the average current can be obtained from the average value of the effective values. Here, the frequency at which the intermittently applied electric pulse is repeated is referred to as a period T, and the frequency of the voltage / current applied in one electric pulse, that is, for example, the sign of FIGS. 2 (b) and 2 (c). The frequency of the wave is called the frequency.
Further, the voltage / current value in the period T during which the electric pulse is not applied may be 0, or a DC or AC bias voltage / current may be applied. It is also conceivable that weak DC or AC current / voltage components are superimposed.

The distance between the electrode means takes into consideration other external conditions such as the peak value that can be applied, the size of the fish to be guided, the geographical condition of the bottom of the water, for example, the degree of obstacle to the traffic of ships and the like. Can be determined. The distance between the electrode means 10 may be a relatively long distance such as about 100 m or about 1 km, 50 cm or more and 10 m or less, 60 cm or more and 5 m or less, 70 cm or more and 3 m or less, 80 cm or more and 1 m or less. Etc. It may be a relatively short distance. Then, an electric pulse is applied to the electrode means by selecting an average voltage or an average current so as to obtain a desired electric field strength with respect to the predetermined electrode means interval.

FIG. 3 is a diagram for explaining the principle of the induction method used in the aquaculture system of the present invention. FIG. 3 shows an image of an electric field generated when an electric pulse is applied to the electrode means 10a to 10f arranged in a row at predetermined intervals d. Although 6 electrode means 10a to 10f are shown in FIG. 3, the number of the electrode means 10 is not limited to 6, and as shown in FIG. 1, the vaginal region 12a to the guide path 12c are formed as a whole. A large number of electrode means 10 are arranged side by side so as to do so.

For example, according to the example of FIG. 3, in a certain cycle, an electric pulse is applied to the electrode means 10a, 10c, 10e (becomes a positive electrode), and the adjacent electrode means 10b, 10d, 10f are 0 [V] (-). Become a pole). In the next cycle, an electric pulse is applied to the electrode means 10b, 10d, 10f, and the electrode means 10a, 10c, 10e becomes 0 [V]. In this way, an electric pulse is applied between the adjacent electrode means 10. Here, the − pole does not necessarily have to have a polarity different from that of 0 [V] or the + pole side, and may be a potential that causes some potential difference from the + pole side.

In FIG. 3, in such a case, the strength of the electric field generated in each cycle is shown in the form of equipotential lines 30 around the electrode means 10a to 10f. Considering the readability of the drawings, the equipotential lines 30 around each of the electrode means 10a to 10f represent only a range up to about half of the distance d between the electrode means, but in reality, the electric field is of course It may extend to a range farther than this, to the adjacent electrode means, or to a range farther than this.

In FIG. 3, equipotential lines 30 are concentrically represented so as to surround the periphery of each of the electrode means 10a to 10f. Therefore, the region connecting the electrode means 10a to 10f arranged in a row at intervals from each other is covered with the concentric equipotential lines 30. An electric field due to an electric pulse applied to each of the electrode means 10a to 10f is generated in the region covered by the equipotential lines 30, that is, the entire region in which the electrode means 10a to 10f are arranged in a row. When the fish 32 approaches or enters the area, it receives electrical stimulation. The electric pulse applied to the electrode means 10a to 10f is set so as to generate an electric field that gives an electric stimulus that the fish 32 dislikes. Therefore, the fish 32 tends to move toward the direction where the electrical stimulation becomes weaker and the direction where the electrical stimulation disappears. Therefore, the fish is guided away from the electrode means 10a to 10f, that is, toward the arrow 34a in FIG. On the contrary, the closer to the electrode means 10a to 10f, the stronger the electric field and the stronger the electrical stimulation, so that the fish does not move in the direction closer to the electrode means 10a to 10f, that is, toward the arrow 34b in FIG. ..

In this way, a barrier is formed by the electric field, and the fish cannot pass between the electrode means 10a to 10f.

For example, as shown in FIG. 1, a plurality of electrode means 10 are arranged at intervals along a substantially quadrangular contour line forming a cage region 12a, and the electrode means 10 adjacent to each other are arranged. When an electric pulse as shown in FIG. 2, for example, is applied between the ten, an electric field that gives an electric stimulus as shown in FIG. 3 is generated in water. In this way, it is possible to form a barrier by an electric field that prevents fish from passing through the contour line of the cage region 12a, and to guide the fish to be trapped in the cage region 12a.

Further, any one or more of the electrode means 10a to 10f shown in FIG. 3, for example, the electrode means 10c and 10d are assigned to the entrance / exit 12b. The doorway can be opened and closed by switching the electric pulse to the electrode means 10c and 10d assigned to the doorway 12b on and off. For example, in FIG. 3, assuming that the upper side of the electrode means 10a to 10f is the cage region 12a and the lower side is the guide path side 12c, if an electric pulse is applied to the electrode means 10c and 10d assigned to the entrance and exit 12b, the electrode means 10c and 10d An electric field is also formed at the position of, and electrical stimulation is applied to the fish trying to pass through this electric field, and the fish in the cage region 12a are guided to be confined in the cage region 12a, and the cage region is confined. Fish outside 12a are locked out of the cage region 12a.
When the application of the electric pulse to the electrode means 10c and 10d assigned to the doorway 12b is cut off, an electric field is not formed at the positions of the electrode means 10c and 10d, the doorway 12b is opened, and the fish can see the electrode means 10c. , 10d can be passed through if it is in the area. Therefore, the movement of fish between the cage region 12a and the taxiway 12c is carried out via the doorway 12b.
If you want to guide the fish from the cage area 12a to the taxiway 12c, you can simply open the doorway 12b so that the fish in the cage area 12a will naturally notice the doorway 12b and move to the taxiway 12c. Alternatively, a fish attracting means for attracting fish may be provided in the vicinity of the entrance 12b or in the taxiway 12c. The fish attracting means may be light, for example, a fish attracting lamp (consisting of a light bulb, an LED, or a light emitting element such as a laser) that emits light as fish prefers, or electricity preferred by fish. It may be an electrode means that generates a stimulus. For example, it is possible to attract fish by applying electricity different from the above-mentioned electric pulse to the electrode means 10. Also, depending on the type of fish, sound waves or ultrasonic waves can be used. This fish attracting means may be attached to or integrally provided with the electrode device 10, or may be provided separately from the electrode device 10.

FIG. 4 is a diagram illustrating an embodiment of an arrangement of the electrode means 10 forming the taxiway 12c, showing an image of an electric field generated when an electric pulse is applied to, for example, the electrode means 10 g to 10 l. Is. In FIG. 4, 10 g to 10 l of the electrode means arranged in a row at intervals from each other are arranged in two rows with a substantially constant width w. Of the electrode means 10g to 10l, electric pulses having the same intensity are applied to the electrode means 10g to 10k as in the case of the electrode means 10a to 10f shown in FIG. Therefore, as described above, an electric field is formed so that fish cannot pass through the row formed by the electrode means 10 g to 10 k. Since such an electric field is formed around the electrode means 10 g to 10 k arranged via the width w, fish cannot come out from the region sandwiched between these two rows of electrode means 10 g to 10 k. , The taxiway 12c is formed. The fish will move mainly in the left-right direction in the figure in this taxiway 12c. That is, it is not possible for fish to leave the taxiway 12c or to enter the taxiway 12c across a row of electrode means 10g to 10l.
In FIG. 4, an electric pulse stronger than that of the electrode means 10g to 10k is applied to the rightmost electrode means 10l of the two rows of electrode means 10g to 10l, and a strong electric field is formed around the electrode means 10l. .. The intensity of this strong electrical pulse applied to the electrode means 10l is that the stimulation by the electric field formed around the electrode means 10l is a fish at any position in the width W direction between at least two electrode means 10l, 10l. It is set to occur with sufficient strength to prevent it from passing through. (In the following, such an electric field and an electric pulse may be simply referred to as a "strong electric field" and a "strong electric pulse".) Therefore, the induction formed between the rows of the electrode means 10g to 10l. A barrier due to an electric field is generated at a position sandwiched between the electrode means 10l in the path 12c, and the fish passes through the region sandwiched between the electrode means 10l and 10l to which the above-mentioned strong electric pulse is applied in the induction path 12c. You will not be able to. Therefore, in the taxiway 12c, the fish cannot move in the direction of arrow 42b and is therefore guided in the direction of arrow 42a.
This strong electric pulse is applied to the electrode means 10l and 10l for a predetermined period, and then is subsequently applied to the adjacent electrode means 10k and 10k. At that time, the electric pulse applied to the electrode means 10l and 10l may maintain the same intensity as the above-mentioned strong electric pulse, or may be weakened to the same intensity as the other electrode means 10g to 10j. Subsequently, after a further predetermined period has elapsed, an electric pulse having the same intensity as the above-mentioned strong electric pulse is applied to the adjacent electrode means 10j. In this way, a strong electric pulse is sequentially applied to the adjacent electrode means along the desired movement direction according to the speed at which the fish moves, and a barrier due to the electric field formed by the strong electric pulse is created. , The fish is gradually moved in the direction in which the fish is to be guided in the taxiway 12c. Then, the fish in the taxiway 12c moves and is guided in the direction of arrow 42a in the figure in a form of being gradually pushed from behind by the barrier generated by the electric field formed by this strong electric pulse. ..
A strong electrical pulse barrier is formed in the guide path 12c to prevent the fish from moving in the opposite direction to the desired direction, and in addition to guiding the fish in the desired direction, it also attempts to guide the fish. A fish attracting means for attracting fish may be provided at the tip of the direction, that is, the direction indicated by the arrow 42a in FIG. As described above, this fish attracting means can be applied alone or in combination with various kinds of means.
FIG. 5 shows another example of the arrangement of the electrode means 10 in the taxiway 12c. 5 (a) is a diagram showing the arrangement of the electrode means 10 of the taxiway 12c, and FIG. 5 (b) shows the strength of the electric field generated near the center of the taxiway 12c in the width direction of FIG. 5 (a). It is a figure which shows.
In the example of FIG. 5, as in the example shown in FIG. 4, two rows of electrode means 10 g to 10 l are provided substantially parallel to each other, and a taxiway 12c is formed between them. Further, a row of electrode means 10'g to 10'l is provided between the two rows of electrode means 10 g to 10 l. In FIG. 5, an electric pulse is applied to one electrode means 10'k of the electrode means 10'g to 10'l in the central row, and an electric field is generated in the surroundings. Due to the electric field formed by the electrode means 10k and 10k contouring the taxiway 12c and the central electrode means 10'k, the position of the electrode means 10'k in the taxiway 12c is spread over the entire width of the taxiway 12c. An electric field is generated and a barrier is formed by the electric field. Therefore, the fish in the taxiway 12c cannot pass through the barrier due to this electric field, that is, they can move in the taxiway 12c to the right of the electrode means 10'k, that is, in the direction of the arrow 52b. Instead, it is guided toward the arrow 52a.
The change in the electric field strength in the vicinity of the center in the width direction in the taxiway 12c is shown in FIG. 5 (b). The horizontal axis of FIG. 5B corresponds to the horizontal direction of FIG. 5A, and the vertical axis corresponds to the electric field strength. The curve 54 shows the strength of the electric field at each position.
In the electrode means 10'g to 10'l in the center row, an electric pulse as described above is applied to the electrode means 10'k, and further, next to the electrode means 10'k, particularly, a fish is guided. An electric pulse weaker than that of the electrode means 10'k may be applied to the electrode means 10'j adjacent to the direction to be intended. A weak electric field is formed around the electrode means 10'j by this electric pulse. Therefore, as shown by the curve 54, the electric field near the center in the width direction of the taxiway 12c shows a low value (for example, may be 0) from the electrode means 10'g to 10'j. As it approaches the electrode means 10'j from the electrode means 10'i, it gradually starts to rise, becomes the highest at the position of the electrode means 10'k, and starts to fall as it moves away from the electrode means 10'k. Then, when the fish on the left side of the electrode means 10'k in the taxiway 12c in FIG. 5, for example, in the vicinity of the electrode means 10'i moves to the right side in the figure, the electric field gradually becomes stronger, so that the fish becomes stronger. The strength of the electrical stimulation received also increases. Therefore, the fish will move by itself in the direction in which the stimulation by the electric field is weakened, that is, in the direction of the arrow 52a. Therefore, the fish in the taxiway 12c begins to move in the direction of weaker electrical stimulation by the electric field at the stage of approaching the electrode means 10'j before approaching the electrode means 10'k.
In this way, when a weak electrical pulse is gradually applied in the direction in which the fish is to be guided, the electrical stimulation becomes stronger as the fish moves in the direction in which it does not want to move, so that the fish has a weaker electrical stimulation. Since it starts to move naturally to, the fish can be guided more smoothly.
Further, as in the example described in FIG. 4, after applying an electric pulse to the electrode means 10'k for a predetermined period of time, the adjacent electrode means, more specifically, the adjacent electrode means in the direction of trying to guide the fish. An electric pulse similar to the electric pulse applied to the electrode means 10'k is applied to the electrode means 10'j of the above. At that time, the weak electric pulse applied to the electrode means 10'j is further applied to the electrode means 10'j next to the electrode means 10'j. In this way, by sequentially applying an electric pulse and a weak electric pulse to the adjacent electrode means in the desired direction according to the speed at which the fish moves, the electric field formed by these electric pulses is used. The barrier is gradually moved in the guideway 12c in the direction in which the fish is to be guided to guide the fish.
In this way, according to the form in which additional electrode means 10'g to 10'l are provided in the taxiway 12c to form an electrical barrier in the taxiway 12c to guide the fish, the example of FIG. 4 Compared with this, one row more electrode means is required in the taxiway 12c, but it is not necessary to apply a strong electric pulse in order to form an electric barrier as in the example of FIG.
When an electric pulse is applied to the electrode means 10 in water, for example, when the electric pulse is applied in seawater, the electrode means 10 causes elution of the material of the electrode means due to the influence of ionic conduction or the like, or corrodes due to oxidation. Damage may be unavoidable due to the accumulation of kimono. As the strength of the electrical pulse increases, that is, as the voltage / current value of the applied electrical pulse increases, such damage may become greater. In such a case, according to the example shown in FIG. 5, since it is not necessary to apply a stronger electric pulse, the degree of damage caused to each electrode means 10 can be suppressed to a low level.
FIG. 6 shows yet another example of the arrangement of the electrode means 10 in the taxiway 12c. In the example of FIG. 6, two rows of electrode means 10 m to 10 s are arranged in a zigzag shape. That is, in the taxiway 12c, the electrode means 10m, 10o, 10q, 10s arranged inside and the electrode means 10n, 10p, 10r arranged outside are alternately arranged to form two rows. doing.
In FIG. 6, as in the example of FIG. 4, of these electrode means 10m to 10s, an electric pulse of the same intensity is applied to the electrode means 10m to 10r, and the rightmost electrode means 10s of FIG. 6 is subjected to an electric pulse. A strong electrical pulse is applied. After that, this strong electric pulse is sequentially applied to the adjacent electrode means at predetermined time intervals.
When the electrode means 10m to 10s are arranged in a zigzag shape in this way, for example, as shown in FIG. 7, one electrode means 10o cannot form a predetermined electric field due to a failure or the like. Even in such a case, it can be guaranteed by the electrode means 10n and 10p adjacent to both sides. This is because when the electrode means are arranged in a zigzag shape, the distance in the longitudinal direction of the taxiway 12c, that is, the distance along the contour of the taxiway 12c is shorter than the distance between the adjacent electrode means. That is, for example, in the form shown in FIG. 6, when one electrode means 10o is missing, the distance between the remaining adjacent electrode means 10n and 10p is 1 in the form illustrated in FIGS. 4 and 5. It is shorter than the distance between adjacent electrode means that remains when one electrode means is chipped. Therefore, the remaining electrode means 10n and 10p can cover the electric field of the portion missing due to a failure or the like, and form an electric field so as to cover the contour of the guideway 12c.
FIG. 8 is a diagram showing an embodiment of an electrode device 70 including the electrode means used in the present invention. FIG. 8A shows a process of installing the electrode device 70 at a predetermined position in water, and FIG. 8B shows the electrode device 70 having an electrode means 10 to which an electric pulse is applied and an electrode means. It has fixing means 74 for fixing at a desired installation position in water, and forms an electric field in water when an electric pulse is applied.

The electrode means 10 includes a linear portion 72a having a conductive and corrosion-resistant surface extending at least partially from the bottom of the water toward the water surface, and the fixing means 74 is provided at the lower end of the linear portion 72a. At the upper end of the linear portion 72a, a float 76 for supporting the linear portion 72a is provided between the linear portion 72a and the fixing means 74.

FIG. 8A schematically shows the inside of the float 76. The float 76 is a substantially spherical shell having a space filled with air inside, and is configured to float on the water surface. Before the electrode device 70 is installed at a predetermined position, the linear portion 72a is housed inside the float 76 in a wound state, and when the float 76 reaches the fixing means 74, the linear portion 72a is stored. The linear portion 72a is unwound.

At the lower end of the linear portion 72a of the electrode device 70, a connecting portion 78 for detachably connecting the linear portion 72a and the fixing means 74 is provided.

When the linear portion 72a is unwound, the connecting portion 78 provided at the lower end of the linear portion 72a approaches the fixing means 74 arranged on the bottom of the water. When the connecting portion 78 reaches the depth of the fixing means 74 provided on the bottom of the water, it is connected to the fixing means 74 and the electrode means 10 is fixed at a predetermined position.
For example, a screw portion that is screwed to each other may be provided on the upper surface of the fixing means 74 and the lower surface of the connecting portion 78, or a magnet and metal that attract each other may be provided. At that time, if an electromagnet is used as the magnet, the connecting portion 78 can be detachably attached to the fixing means 74 by turning on and off the current flowing through the coil.

The linear portion 72a is supported in a linearly taut state between the float 76 and the fixing means 74.

A flexible braided wire pipe or wire can be applied to the linear portion 72a. As the braided wire pipe or wire, one in which a conductive wire rod made of stainless steel is woven is used. Further, instead of or in addition to the wire rod made of stainless steel, a wire rod made of platinum, iridium, ruthenium, rhodium, titanium, copper, chromium, and / or other conductive inorganic materials such as alloys containing these is knitted. You may use the one. Further, a conductive polymer material composed of polyacetylene, polypyrrole, polythiophene, polyaniline, etc., or a composite material obtained by adding an inorganic and / or organic (for example, carbon) conductive material to the polymer material can also be applied. .. Further, a wire rod made of synthetic resin may be combined. By appropriately combining these strands and selecting the ratio thereof, it is possible to ensure the predetermined conductivity, corrosion resistance, flexibility and / or elasticity of the linear portion 72a.

Further, the braided wire pipe or wire may be subjected to a corrosion resistant coating or plating. In this corrosion resistant coating, the braided wire or pipe may be coated as a whole, or may be coated with a wire.

The fixing means 74 may have a weight capable of fixing the electrode means 10 in water, or may have a fixing portion 74a fixed to the bottom of the water. If the fixing portion 74a is provided, the fixing means 10 can be more firmly fixed to the bottom of the water. On the other hand, if the fixing means 74 has a weight capable of fixing the electrode means 10 in water, the fixing means 74 can be installed on the water bottom more easily without requiring the work for fixing the fixing means 74 to the water bottom. Can be done.

Further, the electrode device 70 may be provided with a battery module BM. FIG. 8B shows an example in which the solar cell module is attached to the upper hemisphere of the float 76 as the battery module BM. In addition to the solar cell module, various power generation methods such as a seawater cell module, a wind power generation module, and a tidal power generation module can be applied to the battery module BM. The battery module may include a storage battery in addition to these power generation modules.

These power generation module BMs may be provided in each electrode device 70, or one battery module BM may be provided for, for example, a pair or several electrode devices 70. If the power generation module BM can stably supply all the electric power used in the electrode means 10, it is not necessary to provide a cable for supplying electric power to the electrode device 70 provided with the power generation module BM. Therefore, it is possible to save the trouble of laying cables for connecting the plurality of electrode means 10 to each other and to the power supply. Further, if one power generation module BM is provided for a pair or several electrode devices 70, only some electrode means 70 corresponding to one power generation module BM need to be connected by wire. .. Further, after preparing a cable for supplying power to each electrode device 70, the power generation module BM can be used as a backup power source in an emergency or in the event of a failure of the power supply equipment.

Further, the electrode device 70 is provided with a communication module CM that communicates with a control means for controlling an electric pulse. FIG. 8B shows an example in which a wireless communication module CM is provided inside the float 76. Through this wireless communication module CM, the electrode device 70 receives a signal from the control means that determines an electric pulse to be applied to the electrode means 10. Further, the position information of the electrode device 70, the information indicating the state of damage or corrosion of the electrode means 10, the information regarding the state of connection with the fixing means 74, and the like are transmitted to the control means. The position information of the electrode device 70 can be acquired by GPS or the like, or can be obtained in relative detail based on the mutual positional relationship with the peripheral electrode devices 70.

Further, the position of the moving body that moves in or near the region where the plurality of electrode means 10 are provided can be finely determined based on the mutual positional relationship with each of the electrode means 10.

FIG. 9 is a diagram showing another embodiment of the electrode device 70. In FIG. 9, a linear portion 72a is directly provided as the electrode means 10 on the upper surface of the fixing means 74 provided on the bottom of the water. This linear portion 72a is also formed from a braided wire pipe. A battery module BM is provided in one electrode device 70, and is connected to the other electrode device 70 via a cable 82.

When guiding a fish using the electrode device of the present invention, first, the electrode means 10 is arranged so as to form a cage region 12a and a taxiway 12c communicating with the cage region 12a via the entrance / exit 12b. , An electric pulse is applied to the electrode means 10.

When the young fish or fry of the fish to be cultivated is put into the cage area 12a, these fish are put into the taxiway 12c from one end provided on the port side of the taxiway 12c. An electric pulse is controlled and applied to the electrode means 10 by the control means as follows. That is, an electric pulse is set and applied so that an electric field is generated so that the fish is guided toward the cage region 12a in the taxiway 12c. When the fish passing through the taxiway 12c enters the cage region 12a, the control means does not apply an electric pulse to the electrode means 10 of the entrance / exit 12b, and the entrance / exit 12b is opened. When almost all of the fish in the taxiway 12c have entered the cage region 12a, the control means also applies an electric pulse to the electrode means 10 of the entrance / exit 12b to close the entrance / exit 12b.

Whether or not the fish in the taxiway 12c has entered the cage region 12a is determined by detecting the number of fish remaining in the taxiway 12c, the number of fish passing through the doorway 12b, and / or the number of fish entering the cage region 12a. Judgment can be made based on this. In order to detect the number of these fish, a known fish finder, an optical detector, or the like may be used, or an electric field is formed through the electrode means of the present invention and a current flowing through the electric field is formed. And analyze this current value together with the position information of the electrode means, it may be possible to determine which position in the electric field and how much fish are present.

When the fish enters the cage area 12a, the fish are bred and grown in the cage area 12a for a predetermined period of time. During that time, for example, food for farmed fish bred in the cage region 12a, such as small fish, can be sent from the port side to the cage region 12a side via the taxiway 12c.

Further, the cage area 12a is further divided into two or more sections, and one of them is used according to the underwater environment, for example, the ebb and flow of the tide, the change in water temperature due to the weather, the state of food distribution, and the like. Can be guided to the parcel. At that time, the fish may be guided to a desired section in combination with the above-mentioned fish collecting means.

Once the farmed fish have grown to a state suitable for shipping, the farmed fish can be guided from the cage region 12a to the vicinity of the harbor via the taxiway 12c.

Further, the aquaculture system 1 may include various sensors for detecting water temperature, air temperature, water flow speed, food density, growth status of aquaculture fish, and the like. Based on the values detected from these sensors, the control means can determine what kind of electric pulse is applied to which electrode means 10. Further, the control means may be pre-programmed so as to apply a predetermined electric pulse to the predetermined electrode means 10 at a predetermined date and time. At that time, for example, a table in which individual threshold values are set for the values detected by the above-mentioned various sensors, or complex conditions are set, and what kind of electric pulse is applied to which electrode means 10 is pre-patterned. An electric pulse may be applied to each electrode means according to the table. Further, a plurality of these threshold values and tables are stored according to the type of farmed fish, and can be appropriately read out and used according to the current type of farmed fish.

The present invention is not construed as being limited to the above embodiments, and may be implemented in various embodiments without departing from the spirit of the present invention. For example, although referred to as "fish" in the above embodiments, the scope of the present invention is not necessarily limited to biological fish, mammals such as whales, dolphins, fur seals and sea lions, reptiles such as crocodile, and frogs. It can be applied to all organisms that live in water such as amphibians such as jellyfish, squid, octopus, shrimp, and algae. Also, when trying to cultivate organisms that do not move freely, such as shellfish and coral, as a protective fence to keep away underwater organisms that try to prey on them and organisms that have pathogens harmful to them. It is also possible to apply the present invention.

Further, the electrode means or the electrode device may have a light emitting body such as a light on the upper portion thereof, such as a so-called buoy. If such a light emitting body can change the color, brightness, and the like, the state of the electric pulse applied to each electrode means can be visually recognized from the outside depending on the display mode / light emitting mode of the light emitting body. Then, the above-mentioned cage area, doorway, and / or the usage state of the taxiway, for example, to what extent the cage area is used, whether the doorway is closed, and in which direction the fish is guided in the taxiway. You can check at a glance on the spot whether or not it is. In addition, each electrode means or electrode device has a self-diagnosis function, and the display mode / light emitting mode of the light emitter depends on its own condition, for example, the degree of deterioration of the electrode means, the presence or absence of failure, the type of failure, and the like. May be different. Further, as described above, when the electrode means / electrode device is arranged in a matrix, the light emitting mode of the light emitting body is changed regardless of the state of the electrode means, and the light emitting mode is changed to the outside, particularly the upper part, for example. Some message to a person in the sky, such as an advertisement, may be displayed.

Further embodiments of the present invention will be described with reference to FIG.
The water tank 100 is provided with a large number of columnar electrodes 110 arranged substantially parallel to each other and arranged in a matrix. The electrode 110 may be, for example, a cylinder or a cylindrical columnar body, may have a prismatic shape such as a square column, or may be a thinner wire-like linear body as shown in the figure. May be good.

Positioning members 120 and 120 for supporting and positioning these electrodes 110 from both ends are provided on the upper portion and the lower portion of the electrodes 110, respectively.
As one embodiment, a relatively thick case in which the electrode 110 has a thickness such that it can stand on its own will be described.

Each positioning member 120 has an insulating plate 124 provided with a large number of fittings 122 having a contour shape corresponding to the cross-sectional contour of the end of the electrode 110.

By fitting the end portion of the electrode 110 into the fitting portions 122 of the positioning members 120 and 120 provided on the upper portion and the lower portion of the electrode 110, respectively, the electrode 110 is positioned and fixed at least laterally in the water tank 100. To.

These fitting portions 122 may be formed so as to penetrate the plate 124, or may be formed as recesses that do not penetrate the plate 124.

The plate 124 and each electrode 110 may be fixedly fixed in advance, or may be assembled in an assembling manner when being installed in the water tank 100. In the case of the assembly type, the lower plate 124 is first installed, then the upper plate 124 is installed, and then the electrode 110 is inserted into the through-hole-shaped fitting portion 122 of the upper plate 124 and inserted downward. The tip of the electrode 110 may be fitted into the fitting portion 122 of the lower plate 124 to position the electrode 110 in the water tank.

A fixing member for fixing the upper or lower plate 124 may be provided inside the water tank 100, or a fixing member for fixing to the inner wall surface of the water tank 100 may be provided outside the plate 124. You may be. For example, if it is a fixing member on the water tank side, it is a mounting table provided so as to bulge inward from the wall surface of the water tank, and by placing the outer peripheral end portion of the plate 124 on it, the plate 124 can be placed in the water tank. It can be positioned at 100 predetermined positions. Additional or alternative, it may be a protrusion provided on the outside of the plate 124.

Further, spacer members may be provided to fix the upper and lower plates 124 to each other at predetermined intervals.

Further, only the lower plate 124 is fixed at a predetermined position near the bottom portion in the water tank, and the upper plate is guided by an electrode inserted into the fitting portion 122 of the upper plate, for example, in the vicinity of the water surface in the water tank. It may be configured so that it can be moved according to the top and bottom of the water surface. At that time, the upper plate may be formed from a hollow or foam material, for example, so that the density is adjusted so that a desired buoyancy can be received from the water in the aquarium.

As another embodiment, as shown in FIG. 10, the electrode 110 will be described with reference to an example in which the electrode 110 is formed as a relatively thin linear member such as a wire.

This embodiment differs from the previous embodiment mainly in the method of fixing the plate 124 and the electrode 110. The points that are common / corresponding in each of the other embodiments can be applied as they are / correspondingly.

In this case, the electrode 110 can be fixedly fixed with its end embedded in each fitting portion 122 of the upper plate 124 and / or the lower plate 124.

For example, the lower end of the electrode 110 is embedded and fixed in the fitting portion 122 of the lower plate 124, and the upper end of the electrode 110 is inserted and positioned in the fitting portion 122 of the upper plate 124. May be good.

The outer contour of the plate 124 may be formed so as to substantially match the shape of the inner contour of the water tank 100 with a predetermined clearance, or has an arbitrary shape such as a polygon or a circle. You may. It suffices to have at least an outer contour smaller than the inner contour of the water tank 100 to be used.

The wiring for supplying the electric pulse to each electrode 110 may be assembled to the plate 124 or each electrode 110, and is waterproof to the connection portion provided at the end of each electrode 110, preferably on the upper side. It may be detachably attached and connected via a connector, or it may be fixedly connected by soldering or the like and waterproofed. Alternatively, they may be connected in a non-contact manner by inductive connection or the like.

The electric pulse applied to each electrode 110 is the same as that of the above-described embodiment described above. For example, in various voltage ranges such as several V to several kV, several V to several hundred V, 5 V to 50 V, 10 V to 30 V, several Hz to several GHz, several Hz to several MHz, 10 Hz to 100 kHz, 100 Hz to 10 KHz, By sequentially applying electric pulses in various frequency ranges such as 1 k to 10 kHz to each electrode, the fish in the water tank can be guided in a desired direction.

By applying an electric pulse using such an electrode device, the fish in the aquarium can be guided in a desired direction. The water placed in the aquarium may be seawater or freshwater. Such electrode devices are applied to any commercial or personal, ornamental, amusement, aquaculture, or storage aquarium.

For example, it can be set in advance and guided to move the fish in a predetermined direction at a predetermined time. In addition, in combination with a motion sensor or the like, the fish can be guided according to the movement of a person outside the aquarium. In addition, lighting devices such as illuminations are provided inside and / or outside the aquarium, and the lighting devices are turned on and off in conjunction with the direction in which the fish are guided to guide the fish while exerting a directing effect on the viewer. can do.

For example, in the case of an ornamental aquarium such as an aquarium, the position of the person watching the fish outside the aquarium, for example, whether the person is looking inside the aquarium from the side of the aquarium, or from the top or bottom. Depending on the, the fish can be guided to a position that is easy for humans to see. In addition, when different types of fish are placed in the same aquarium, it is possible to guide the fish by deciding where to stay for each type of fish so that different types of fish are not mixed. By doing so, it is possible to divide the space where the fish in the aquarium can move freely without dividing the space itself, so water quality management etc. should be unified in the aquarium. It is possible to efficiently manage the environment inside the aquarium.

Further, when it is desired to perform arbitrary work such as cleaning the inside of the aquarium, the fish can be guided to a predetermined area in advance so that the work can be performed in the area where there is no fish. At that time, after inducing the fish using the apparatus or method according to the present invention, water is physically blocked between the region where the fish was induced and the other region by another means, and only one region is used. It may be possible to drain water from the water.
With such a configuration, the fish can be guided without touching the fish with a tamo or a net.

Claims (14)

A plurality of electrode means that are arranged apart from each other in water and to which electric pulses are selectively applied, and a fixing means for fixing the electrode means in water .
And when the electric pulse is applied, it forms an electric field in the water to guide the fish.
It is an electrode device
The plurality of electrode means are selected so that the confinement region due to the electric field is formed at a desired position where the fish, which is changed according to a predetermined condition, should be confined, and the confinement region is moved as the position moves. said electrical pulse is applied to, the
Electrode device. A plurality of electrode means that are arranged apart from each other in water and to which electric pulses are selectively applied, and a fixing means for fixing the electrode means in water .
And when the electric pulse is applied, it forms an electric field in the water to guide the fish.
It is an electrode device
Said plurality of regions confined fish is formed by an electric field, to induce selectively moving fish between said plurality of regions, selectively the electrical pulse to the plurality of electrode means is applied,
Electrode device. The electrode device according to claim 1 or 2, wherein the electrode means includes a linear portion having at least a partially conductive and corrosion-resistant surface. The electrode device according to claim 3, wherein the linear portion includes a flexible pipe or wire. The electrode device according to claim 3 or 4, wherein the linear portion is supported by a supporting means on the upper side and by a fixing means on the lower side. The electrode device according to claim 5, wherein the support means includes a float. The electrode device according to claim 5 or 6, wherein the fixing means has a weight capable of fixing the electrode means in water, or has a fixing portion fixed to the bottom of the water. The electrode device according to any one of claims 5 to 7, wherein the electrode device has a connecting portion for detachably connecting the electrode means and the fixing means. The electrode device according to any one of claims 1 to 8, wherein the electrode device is provided with a battery module. The electrode device according to any one of claims 1 to 9, wherein the electrode device is provided with a communication module that communicates with a control unit that controls the electric pulse. A fish farming system using the electrode device according to any one of claims 1 to 10. A method for inducing fish using the electrode device according to any one of claims 1 to 10. The positioning means for arranging the plurality of the electrode means in the water tank is further provided, the positioning means includes a plate-shaped member, and the plate-shaped member is provided with a positioning hole into which an end portion of each electrode means can be inserted. and that the electrode device according to any one of claims 1 to 5. The electrode device according to claim 5, wherein positioning means are arranged at the upper end and / or lower end of the electrode means, and the support means and / or the fixing means and the positioning means are integrally configured.

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