CN114208786B - Directional sound control fish-driving fishing method - Google Patents
Directional sound control fish-driving fishing method Download PDFInfo
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- CN114208786B CN114208786B CN202111392884.6A CN202111392884A CN114208786B CN 114208786 B CN114208786 B CN 114208786B CN 202111392884 A CN202111392884 A CN 202111392884A CN 114208786 B CN114208786 B CN 114208786B
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- transducer
- net cage
- net
- transducers
- opening
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K73/00—Drawn nets
- A01K73/12—Nets held vertically in the water, e.g. seines
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to the technical field of fishing. A directional sound control fish driving fishing method comprises the following steps: firstly, arranging a net cage on one side of the inside of a fence, wherein an opening of the net cage faces outwards, and the opening end of the net cage is connected with a blocking net for closing the opening of the net cage; step two, arranging transducer arrays, wherein the transducer arrays comprise at least two transducer arrays which are arranged along the distance from the net cage from far to near, each group of transducer arrays comprise at least two transducers, and the transducers are connected with a floating ball; and thirdly, the transducer array sequentially works according to the distance between the transducer array and the net cage, so that the fish shoal is driven to swim into the net cage. Based on the characteristics of small attenuation, high propagation speed and wide influence range of acoustic signals in water, fish behavioural research shows that the acoustic signals can drive the large yellow croaker at a certain sound pressure intensity.
Description
Technical Field
The invention relates to the technical field of fishing, in particular to a sound control fishing method.
Background
The fence culturing facilities are built by utilizing fence to fence large-area water areas for stocking culturing, and pasture fence culturing is developed into a special aquaculture mode of offshore water areas in China. Because the area of the fence culture sea area is large, the sea floor topography fluctuates, and the operation difficulty of accurately capturing by using the net is high; the marine pasture also faces the problem of difficult capturing of released fish, and because the marine pasture has complex topography and is provided with components such as artificial fish reefs, the tradition trawl, purse net and the like are difficult to use.
Disclosure of Invention
The invention provides a directional sound control fish-driving fishing method aiming at the problems in the prior art, and solves at least one technical problem.
The technical scheme of the invention is as follows: the directional sound control fish driving fishing method is characterized by comprising the following steps of:
firstly, arranging a net cage on one side of the inside of a fence, wherein an opening of the net cage faces outwards, and the opening end of the net cage is connected with a blocking net for closing the opening of the net cage;
step two, arranging transducer arrays, wherein the transducer arrays comprise at least two transducer arrays which are arranged along the distance from the net cage from far to near, each group of transducer arrays comprise at least two transducers, and the transducers are connected with a floating ball;
and thirdly, the transducer array sequentially works according to the distance between the transducer array and the net cage, so that the fish shoal is driven to swim into the net cage.
Based on the characteristics of small attenuation, high propagation speed and wide influence range of acoustic signals in water, fish behavioural research shows that the acoustic signals can drive the large yellow croaker at a certain sound pressure intensity.
Further preferably, the transducers of the same transducer array are connected in series with the power supply device, and a wireless control switch is arranged between the transducers of the same transducer array and the power supply device. The synchronous operation of the transducers of the same transducer array is convenient to realize.
Further preferably, the power supply means comprises a power amplifier.
Further preferably, a transducer group consisting of at least two transducers arranged in series is connected below the floating ball; the same transducer array comprises at least one group of said transducers;
a sinker is connected below the transducer group.
Is convenient for realizing the longitudinal driving of the fish shoals. Thereby realizing three-dimensional driving.
Further preferably, a sleeve rope is connected to the blocking net, and is connected with an anchor rope, and the anchor rope is connected with an anchor;
two sides of the net cage opening are respectively connected with two opposite blocking nets;
one transducer array is arranged between the two blocking nets, and at least two transducer groups are arranged on the transducer array between the two blocking nets;
the opening of the net cage is provided with a transducer array consisting of two transducers arranged up and down.
Facilitating the improvement of the capturing effect.
Further preferably, all transducer arrays are connected with a main cable for connecting a power supply device, and the floating ball is arranged on the main cable;
the main cable is arranged in an S shape.
The layout is convenient.
Further preferably, the main cable comprises a U-shaped branch part and a butt joint part, wherein the U-shaped branch part and the butt joint part are used for connecting the same transducer group, and the two ends of the U-shaped branch part are respectively connected with the butt joint parts used for connecting the adjacent transducer groups;
the bottom of the U-shaped branch part passes through the sinker;
the U-shaped branch part is connected with transducers of the same transducer group in series.
Further preferably, the floating ball is provided with a lower through hole for the U-shaped branch part to pass through;
an upper through hole for the two butt joint parts to pass through is formed in the floating ball, and the upper through hole and the lower through hole are communicated with each other to form a T-shaped hole.
Further preferably, adjacent transducer arrays are arranged in parallel with the power supply means.
Facilitating independent control of different transducer arrays.
Further preferably, one side of the net cage is connected with a net door for closing an opening of the net cage, and the upper end and the lower end of the net door are respectively connected with an upper pull rope and a lower pull rope.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of the present invention at the cage of FIG. 1;
fig. 3 is a schematic view showing a partial structure of a transducer group according to embodiment 1 of the present invention.
In the figure: 1 is a fence; 2 is a net cage; 3 is a blocking net; 4 is a sleeve line; 5 is anchor line; 6 is an anchor; 7 is a broadband power amplifier; 8 is a main cable; 9 is a transducer group; 10 is a net door; 11 is a net cage frame; 12 is a net cage; 13 is an upper pull rope; 14 is a pull down rope; 15 is a sinkers class; 16 is the bottom line; 17 is a floating ball class; 18 is a floating ball; 20 is a transducer; 21 is a sinker.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, in a specific embodiment 1, a directional sound control method for driving fish to catch fish is characterized by comprising the following steps:
step one, a net cage 2 is arranged on one side of the inside of the fence. The fence 1 is connected with a net to enclose a sea area for fish culture, and the embodiment takes 15 meters of water depth of the fence as a design description. The cage 2 comprises a cage frame 11 and a cage cover 12 wrapped around the cage frame. The steel ropes at the peripheral edges of the net cage clothes 12 are connected with iron chains to form sinker steel 15 so as to keep the net cage clothes in an opened state under the action of water flow, the specification of the iron chains is balanced according to the requirement, and the specification of the iron chains is generally 3-5kg/m. The net cage frame 11 is a frame welded by HDPE pipes, the pipe diameter is 250mm, the double-pipe structure is formed, the size of the embodiment is a square net cage, the inner size is 6 m long, and the width is 3 m. The net cage 12 is a polyethylene warp-knitted net, the mesh diameter is 30mm of square mesh size, the driven fish gathering is guaranteed, one side opening is connected with the blocking net 3, and the net is 6 m long, 3 m wide and 15 m high.
The opening of the net cage 2 faces outwards, and the open end of the net cage 2 is connected with a blocking net 3 for closing the opening of the net cage 2. The fish driven by the sonar is guided to enter the net cage, the net cover of the blocking net 3 is a polyethylene warp-knitted net, the mesh size is square, the mesh size side is 30mm, the mesh height is 7 meters (about 1.2 times of the water depth), the assembly floater line 17 and the bottom line 16 are formed, and the net cover is connected with the opening part of the net cover 12, so that the fish driven by the sonar can be blocked and guided to enter the net cage.
The bottom line 16 is connected below the barrier net, the bottom line 16 is a rope at the lower part of the barrier net 3, and is made by connecting ropes with an iron chain, so that the bottom of the barrier net 3 is adhered to the bottom, and the specification of the iron chain is about 1-2kg/m. The upper part of the blocking net is connected with a floater line 17, the floater line 17 is a line at the upper edge of the net of the blocking net 3, and a polyethylene three-strand rope with the diameter of 8mm is connected with a foam floater to form the floater line.
Step two, arranging transducer arrays, wherein the transducer arrays comprise at least two transducer arrays which are arranged along the distance from the net cage 2 from far to near, each group of transducer arrays comprises at least two transducers 20, and the transducers 20 are connected with a floating ball 18.
And thirdly, the transducer arrays work sequentially according to the distance between the transducer arrays and the net cage 2, so that the fish swarm is driven to swim into the net cage 2. The frequency range of the transducer is 300Hz-2kHz, and the maximum sound source level is not less than 180dB.
After the fish shoal enters the net cage, the opening of the net cage is closed, and the net cage is lifted. Specifically, after the large yellow croaker enters the net door, the upper pull rope and the lower pull rope are tightened and pulled to the inner welt of the net cage, and then the net door is closed; on the upper cultivation operating platform of the fence, net tools can be placed on net, net openings can be expanded, towed, net collected and the like by moving the main net hauler and the auxiliary net hauler, so that the high-efficiency fishing of the cultivated large yellow croakers is realized.
Based on the characteristics of small attenuation, high propagation speed and wide influence range of acoustic signals in water, fish behavioural research shows that the acoustic signals can drive the large yellow croaker at a certain sound pressure intensity.
The transducers of the same transducer array are connected in series with the power supply device, and a wireless control switch is arranged between the transducers of the same transducer array and the power supply device. The synchronous operation of the transducers of the same transducer array is convenient to realize. The power supply means comprise a power amplifier 7. The broadband power amplifier 7 is connected with the transducer array 9 through the main cable 8, so that the sounders work successively according to the sequence of the groups (T1, T2, T3, T4, T5, T6 and T7) to drive fish. The broadband power amplifier is of AB type, the load power is 100 Hz-100 kHz, and the output power is 2000VA. The spacing of the transducers is according to the sound wave spherical wave attenuation formula. The spacing between adjacent transducer groups is 100-200m. The uppermost transducer in the transducer group is arranged at 3-5m under water. The distance between adjacent transducers of the transducer group is 4-5 meters. The distance between the adjacent transducer arrays is 20-50m, wherein the distance between the transducer array nearest to the net cage and the edge of the net cage is 0.3-0.5m, so that fishes at the edge of the fence barrier net can escape the barrier net after being stimulated by sound. The transducer array is sequentially T1, T2, T3, T4, T5, T6 and T7 from far to near according to the net cage. The transducers of the same transducer array of T1, T2, T3, T4 and T5 form C-shaped arrangement. The C-shaped opening faces the net cage opening. The fence is round. The transducer groups at both ends of T1, T2, T3, T4, T5 are located at the edge of the rail. T1 all transducer groups are located at the edge of the pen. T6 is located between the two barrier nets. T7 is opposite to the opening of the net cage, and T1 is provided with a transducer group. When T1 works, all the other 6 transducer arrays do not work; after 5-10s, T1 and T2 work, the frequency difference between adjacent transducer arrays is 50Hz, the frequency of the transducer array adjacent to the net cage is smaller than that of the transducer array far away from the net cage, and the other 5 transducer arrays do not work; after 5-10s, T1, T2 and T3 work, the frequency difference of adjacent transducer arrays is 50Hz, the frequency of the transducer array adjacent to the net cage is smaller than that of the transducer array far away from the net cage, and the other 4 groups of transducer arrays do not work; sequentially starting different transducer arrays until 7 transducer arrays all work; the frequency of the transducer is 300Hz-2kHz, and the maximum sound source level is not less than 180dB. The transducers of the same transducer array have the same frequency.
The lower part of the floating ball is connected with a transducer group 9 consisting of at least two transducers which are arranged in series; the same transducer array comprises at least one group of transducers 9; a sinker 21 is connected below the transducer group 9. Is convenient for realizing the longitudinal driving of the fish shoals. Thereby realizing three-dimensional driving.
The blocking net 3 is connected with a sleeve rope 4, the sleeve rope 4 is connected with an anchor rope 5, and the anchor rope 5 is connected with an anchor 6; two sides of the opening of the net cage 2 are respectively connected with two opposite blocking nets 3; a transducer array is arranged between the two barrier nets 3; the opening of the net cage 2 is provided with a transducer array. Facilitating the improvement of the capturing effect.
All transducer arrays are connected with a main cable 8 for connecting a power supply device, and a floating ball is arranged on the main cable 8; the main cable is arranged in an S shape. The layout is convenient. The main cable comprises a U-shaped branch part and a butt joint part, wherein the U-shaped branch part and the butt joint part are used for connecting the same transducer group, and the two ends of the U-shaped branch part are respectively connected with the butt joint parts used for connecting the adjacent transducer groups; the bottom of the U-shaped branch part passes through the sinker; the U-shaped branch part is connected with transducers of the same transducer group in series. The floating ball 18 is provided with a lower through hole for the U-shaped branch part to pass through; the floating ball 18 is provided with an upper through hole for the two butt joint parts to pass through, and the upper through hole and the lower through hole are communicated with each other to form a T-shaped hole.
The adjacent transducer arrays are arranged in parallel with the power supply. Facilitating independent control of different transducer arrays.
One side of the net cage 2 is connected with a net door 10 for closing the opening of the net cage 2, and the upper end and the lower end of the net door are respectively connected with an upper pull rope 13 and a lower pull rope 14.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (1)
1. The directional sound control fish driving fishing method is characterized by comprising the following steps of:
firstly, arranging a net cage on one side of the inside of a fence, wherein an opening of the net cage faces outwards, and the opening end of the net cage is connected with a blocking net for closing the opening of the net cage;
step two, arranging transducer arrays, wherein the transducer arrays comprise at least two transducer arrays which are arranged along the distance from the net cage from far to near, each group of transducer arrays comprise at least two transducers, and the transducers are connected with a floating ball;
step three, the transducer array works sequentially according to the distance between the transducer array and the net cage, so that the fish shoal is driven to swim into the net cage;
the transducer array is arranged in a C shape protruding outwards towards one side of the purse net far from the net cage according to transducers of T1, T2, T3, T4, T5, T6 and T7 which are sequentially arranged from far to near with the net cage, and the opening of the C shape faces the net cage opening;
when T1 works, all the other 6 transducer arrays do not work; after 5-10s, T1 and T2 work, the frequency difference between adjacent transducer arrays is 50Hz, the frequency of the transducer array adjacent to the net cage is smaller than that of the transducer array far away from the net cage, and the other 5 transducer arrays do not work; up to 7 transducer arrays all operating;
the frequency of the transducer is 300Hz-2kHz, and the maximum sound source level is not less than 180dB;
the fence is round; the transducer groups at two ends of T1, T2, T3, T4 and T5 are positioned at the edge of the fence; t1 all transducer groups are positioned at the edge of the fence; t6 is positioned between the two blocking nets; t7 is opposite to the opening of the net cage, and the T7 is provided with a transducer group;
the lower part of the floating ball is connected with a transducer group consisting of at least two transducers which are arranged in series; the same transducer array comprises at least one group of said transducers;
a sinker is connected below the transducer group;
all transducer arrays are connected with a main cable for connecting a power supply device, and the floating ball is arranged on the main cable;
the main cable is arranged in an S shape;
the main cable comprises a U-shaped branch part and a butt joint part, wherein the U-shaped branch part and the butt joint part are used for connecting the same transducer group, and the two ends of the U-shaped branch part are respectively connected with the butt joint parts used for connecting the adjacent transducer groups;
the bottom of the U-shaped branch part passes through the sinker;
the U-shaped branch part is connected with transducers of the same transducer group in series;
the floating ball is provided with a lower through hole for the U-shaped branch part to pass through;
an upper through hole for the two butt joint parts to pass through is formed in the floating ball, and the upper through hole and the lower through hole are communicated with each other to form a T-shaped hole;
the barrier net is connected with a sleeve rope, the sleeve rope is connected with an anchor rope, and the anchor rope is connected with an anchor;
two sides of the net cage opening are respectively connected with two opposite blocking nets;
one transducer array is arranged between the two blocking nets;
the opening of the net cage is provided with the transducer array;
the transducers of the same transducer array are connected in series with the power supply device, and a wireless control switch is arranged between the transducers of the same transducer array and the power supply device;
the power supply device comprises a power amplifier, wherein the type of the broadband power amplifier is AB type, the load power is 100 Hz-100 kHz, and the output power is 2000VA;
the adjacent transducer arrays are arranged in parallel with the power supply device;
the distance between the adjacent transducer groups is 100-200m, and the uppermost transducer in the transducer groups is arranged at 3-5m under water; the distance between adjacent transducers of the transducer group is 4-5 meters; the distance between adjacent transducer arrays is 20-50m, wherein the distance between the transducer array nearest to the net cage and the edge of the net cage is 0.3-0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392884.6A CN114208786B (en) | 2021-11-23 | 2021-11-23 | Directional sound control fish-driving fishing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392884.6A CN114208786B (en) | 2021-11-23 | 2021-11-23 | Directional sound control fish-driving fishing method |
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| Publication Number | Publication Date |
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| CN114208786A CN114208786A (en) | 2022-03-22 |
| CN114208786B true CN114208786B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111392884.6A Active CN114208786B (en) | 2021-11-23 | 2021-11-23 | Directional sound control fish-driving fishing method |
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| US5448968A (en) * | 1991-06-27 | 1995-09-12 | Ostlie; Lars | Infraacoustic/electric fish fence |
| JP2001008581A (en) * | 1999-06-28 | 2001-01-16 | Shigeru Aoki | Sonic-type rousing fishing method |
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| CN206699193U (en) * | 2017-03-01 | 2017-12-05 | 喃嵘水产(上海)有限公司 | A kind of induction type catches system |
| CN107996528A (en) * | 2017-10-30 | 2018-05-08 | 宁静 | A kind of device and method of intelligence electric field net cage fishing |
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| CN108522443A (en) * | 2017-03-01 | 2018-09-14 | 喃嵘水产(上海)有限公司 | A kind of induction type fishing system |
| CN109997739A (en) * | 2019-03-26 | 2019-07-12 | 黄鱼岛海洋渔业有限公司 | A kind of sound wave seining cultivation system and method |
| CN113100184A (en) * | 2021-04-14 | 2021-07-13 | 黄鱼岛海洋渔业集团有限公司 | Net-free sound wave fishing method and device |
| CN113615650A (en) * | 2021-08-17 | 2021-11-09 | 中国水产科学研究院东海水产研究所 | Efficient fishing method for fishes in large-scale culture facilities |
-
2021
- 2021-11-23 CN CN202111392884.6A patent/CN114208786B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448968A (en) * | 1991-06-27 | 1995-09-12 | Ostlie; Lars | Infraacoustic/electric fish fence |
| JP2001008581A (en) * | 1999-06-28 | 2001-01-16 | Shigeru Aoki | Sonic-type rousing fishing method |
| CN101833097A (en) * | 2010-05-19 | 2010-09-15 | 华南理工大学 | Underwater net cage multi-beam fish driving monitoring system and method |
| CN206699193U (en) * | 2017-03-01 | 2017-12-05 | 喃嵘水产(上海)有限公司 | A kind of induction type catches system |
| CN108522443A (en) * | 2017-03-01 | 2018-09-14 | 喃嵘水产(上海)有限公司 | A kind of induction type fishing system |
| CN107996528A (en) * | 2017-10-30 | 2018-05-08 | 宁静 | A kind of device and method of intelligence electric field net cage fishing |
| CN108419795A (en) * | 2018-04-27 | 2018-08-21 | 林月仙 | A kind of fishing ultrasonic wave drive fish device |
| CN109997739A (en) * | 2019-03-26 | 2019-07-12 | 黄鱼岛海洋渔业有限公司 | A kind of sound wave seining cultivation system and method |
| CN113100184A (en) * | 2021-04-14 | 2021-07-13 | 黄鱼岛海洋渔业集团有限公司 | Net-free sound wave fishing method and device |
| CN113615650A (en) * | 2021-08-17 | 2021-11-09 | 中国水产科学研究院东海水产研究所 | Efficient fishing method for fishes in large-scale culture facilities |
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