CN104285916A - Aquatic optical cable purse net fish attracting device and fish catching method - Google Patents
Aquatic optical cable purse net fish attracting device and fish catching method Download PDFInfo
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- CN104285916A CN104285916A CN201410467713.9A CN201410467713A CN104285916A CN 104285916 A CN104285916 A CN 104285916A CN 201410467713 A CN201410467713 A CN 201410467713A CN 104285916 A CN104285916 A CN 104285916A
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- purse seine
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- 240000007594 Oryza sativa Species 0.000 claims description 2
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- 230000002319 phototactic effect Effects 0.000 description 3
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
- A01K79/02—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery by electrocution
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Mechanical Means For Catching Fish (AREA)
Abstract
The invention discloses an aquatic optical cable purse net fish attracting device and a fish catching method. The aquatic optical cable purse net fish attracting device comprises a boat-shaped floating body, a power supply switch arranged on the floating body, a controller, a rudder turning motor, a GPS positioning instrument, a memorizer, a storage battery for power supply, a light intensity regulating device, an airtight cavity, a light-emitting body arranged in the airtight cavity, a plurality of optical cables, a rudder arranged on the lower surface of the floating body, vertical guide tubes equal to the optical cables in number and used for containing the optical cables, a propeller motor and a propeller, wherein the controller, the rudder motor, the GPS positioning instrument, the memorizer and the storage battery for power supply are arranged in the front portion of the floating body, the light intensity regulating device and the airtight cavity are arranged in the rear portion of the floating body, one end of each of the optical cables extends into the airtight cavity and is in sealed connection with the airtight cavity, the propeller motor and the propeller are arranged under the floating body, and the other end of each of the optical cables penetrates through the floating body to be exposed out of the lower surface of the floating body. The aquatic optical cable purse net fish attracting device has the advantages of being wide in fish attracting range and good in stability, providing convenience for purse net fishing and being not easily overturned.
Description
Technical field
The present invention relates to fishery Fishing technology field, especially relate to and a kind ofly fish can be guided to swim to the optical cable purse seine fish-baiting instrument fishing method waterborne of predetermined anchor point.
Background technology
Although the phototactic reaction of fish is subject to the impact of many internal and external factors, produce diversified performance, phototaxis is that it adapts to one of ability of living environment.
Produce in fish phototactic reaction maximum become light rate time intensity of illumination, be called suitable illumination.Fish gathering technology during torch fishing produces is its theoretical foundation with suitable illumination.In the underwater light field of same light, the different light fish that become will be gathered in suitable illumination district specific to oneself separately; If the illumination intensity of light increases and decreases to some extent, the shoal of fish also can follow the movement of suitable illumination, floats or sinks in the certain limit of a certain water layer.Like this, people just likely utilize this phototactic characteristics of fish, and attracting is transitioned into fish gathering, make originally to be distributed in suitable illumination on a large scale and move gradually and be gathered among a small circle, and the shoal of fish is also inevitable be assembled thereupon, are formed intensive to fish for the light shoal of fish.
On fisherman, normally arrange incandescent lamp, metal halid lamp or LED attracting, existence can only attracting around fishing boat, the deficiency that attracting is limited in scope.
Chinese patent mandate publication number: CN2444417Y, authorize 29 days Augusts calendar year 2001 of publication date, disclose a kind of fish-baiting instrument, there is deep water attracting light fixture, deep water is also had to monitor probe, and deep water monitors that the video signal cable of probe and the power line of deep water attracting light fixture are compounded in a cable, the other end of video signal cable connects monitor.The weak point of this invention is, fish-baiting instrument can not move, and attracting is limited in scope.
Summary of the invention
Goal of the invention of the present invention can not move to overcome fish-baiting instrument of the prior art, the deficiency that attracting is limited in scope, and provides a kind ofly fish can be guided to swim to the optical cable purse seine fish-baiting instrument waterborne of predetermined anchor point and fishing method.
To achieve these goals, the present invention is by the following technical solutions:
A kind of optical cable purse seine fish-baiting instrument waterborne, comprise ship shape buoyancy aid, be located at the power switch on buoyancy aid, be located at the controller in buoyancy aid front portion, motor of coming about, GPS position indicator, memory, accumulator for powering, be located at luminous intensity adjusting device, the closed cavity in buoyancy aid rear portion, be located at the illuminator in closed cavity, some one end to stretch in airtight cavity and the optical cable be tightly connected with airtight cavity, be located at the rudder on buoyancy aid lower surface, the guiding vertical tube for hold optical cable identical with optical cable quantity, and be located at screw motor, the screw below buoyancy aid; The optical cable other end passes buoyancy aid and exposes outside buoyancy aid lower surface, and the vertical rotating shaft of motor of coming about is connected with rudder, and the rotating shaft of rudder, screw motor is connected successively with screw;
Described luminous intensity adjusting device comprises data collecting card and power amplifier, described data collecting card is provided with the signal input interface for being electrically connected with controller, described data collecting card is electrically connected with the input of power amplifier, and the output of described power amplifier is connected with the power electric of illuminator;
Controller is electrically connected with power switch, motor of coming about, memory, GPS position indicator, luminous intensity adjusting device and screw motor respectively.
The light that illuminator sends can conduct in water by optical cable, and GPS position indicator can detect the current residing geographical position of buoyancy aid.
The waveform for controlling intensity variation is stored in memory, controller reads waveform signal, data collecting card gathers this waveform signal, and output on power amplifier, the output of power amplifier is connected with the power electric of illuminator, thus realizes the adjustment to the luminous intensity of the light source that illuminator sends by the power supply controlling illuminator.
In buoyancy aid moving process, current make buoyancy aid off-course, and GPS position indicator detects the current residing geographical position of buoyancy aid; At set intervals, controller calculates the direction of navigation according to buoyancy aid current geographic position and the predetermined anchor point of this buoyancy aid, and turned to by Electric Machine Control rudder of coming about, make the rudder of buoyancy aid point to predetermined anchor point direction all the time, thus make buoyancy aid arrive predetermined anchor point as early as possible;
In buoyancy aid moving process, the light that the fish in water can send along with the optical cable of movement and moving; When moving to predetermined anchor point, utilizing the light sources such as fixing Halogen lamp LED to replace buoyancy aid to attract fish, buoyancy aid being salvaged after having gone up, drag the fishing net fishing of laying in advance.
Therefore, the present invention can overcome the impact of current, moves all the time to predetermined anchor point direction, utilizes optical cable to attract the fish in water to arrive predetermined anchor point as early as possible; Attracting scope is large, for purse seine fishing provides conveniently.
As preferably, also comprise the vibrating sensor be located in buoyancy aid, vibrating sensor is electrically connected with controller.
As preferably, every bar optical cable bottom is equipped with several weight rings adopting lead materials to make.
As preferably, also comprise the solar panel be located on buoyancy aid, solar panel is connected with storage battery.
As preferably, come about motor and screw motor are waterproof machine, and described illuminator is LED.
Utilize a fishing method for optical cable purse seine fish-baiting instrument waterborne attracting, comprise the steps:
(6-1) region and purse seine laying depth A are fished in setting
1, fish for bottom, region and around purse seine is set, fixed light source is set fishing for overlying regions, selected m anchor point on the edge of fishing for region, by the storage of the longitude and latitude of m anchor point in memory;
(6-2) m the waterborne optical cable purse seine fish-baiting instrument corresponding with each anchor point is positioned over respectively fishes for outside region and waterborne apart from corresponding anchor point n rice, and make optical cable lower end be positioned at A under water
1place, the intensity that controller controls by luminous intensity adjusting device the light that illuminator sends is P; Turn on the power switch, controller controls screw machine operation, and each optical cable purse seine fish-baiting instrument waterborne moves towards the anchor point of its correspondence respectively;
(6-3) each optical cable purse seine fish-baiting instrument waterborne all carries out the adjustment of following direction:
On the water in optical cable purse seine fish-baiting instrument moving process, current make optical cable purse seine fish-baiting instrument waterborne off-course, and the GPS position indicator of optical cable purse seine fish-baiting instrument waterborne detects the current residing geographical position of buoyancy aid, is stored in memory by the geographical position of detection;
Every T minute, controller calculates the direction of navigation according to optical cable purse seine fish-baiting instrument current geographic position waterborne and its predetermined anchor point, and is turned to by Electric Machine Control rudder of coming about, and makes the rudder of buoyancy aid point to predetermined anchor point direction all the time;
(6-4) on the water in optical cable purse seine fish-baiting instrument moving process, controller calculates the distance S between optical cable purse seine fish-baiting instrument waterborne and corresponding anchor point, the intensity that controller controls by luminous intensity adjusting device the light that illuminator sends dies down gradually according to the shortening of distance S, when making optical cable purse seine fish-baiting instrument waterborne move to corresponding anchor point, the luminous intensity that illuminator sends becomes
(6-5) utilize instrument to be salvaged by each optical cable purse seine fish-baiting instrument waterborne, replace optical cable purse seine fish-baiting instrument waterborne attracting by fixed light source, drag the seine netting of laying in advance.
The intensity of the light that illuminator sends weakens gradually, fish can be made to chase light and move up gradually, be convenient to fish gathering and seine netting.
As preferably, describedly also comprise the vibrating sensor be located in buoyancy aid, vibrating sensor is electrically connected with controller; Comprise the steps:
(7-1) standard signal to noise ratio snr is provided with in memory
standard, the rotating shaft rotating speed C1 of screw motor, rotating speed C2, C2 > C1; On the water in optical cable purse seine fish-baiting instrument moving process, vibrating sensor detects the vibration signal of buoyancy aid, one section of detection signal Spect (t) in controller selected distance current time B minute;
(7-2) data processing:
Detection signal Spect (t) is inputted one deck accidental resonance model by controller
in, wherein, V (x, t) is potential function, and x (t) is Brownian movement Particles Moving lopcus function, and a, b are the constant of setting, and ξ (t) is external noise, and D is external noise intensity, and N (t) grasps noise in being,
for periodic sinusoidal signal, A is signal amplitude, and f is signal frequency, and t is run duration,
for phase place, if
Controller calculates V (x, t) for the first derivative of x and second dervative, and makes equation equal 0, obtains two layers of accidental resonance model:
Setting noise intensity D=0,
spect (t)=0, N (t)=0; The critical value calculating A is
The critical value of A is substituted in one deck accidental resonance model, and set X
0(t)=0, sn
0=0, with quadravalence jade for asking rain Ge Kuta Algorithm for Solving one deck accidental resonance model, obtain
And calculate
Wherein, x
nt n order derivative that () is x (t), sn
n-1the value of n-1 order derivative at t=0 place of S (t), sn
n+1the value of n+1 order derivative at t=0 place of S (t), n=0,1 ..., N-1; Obtain x
1(t), x
2(t) ..., x
n+1the value of (t);
Controller is to x
1(t), x
2(t) ..., x
n+1t () carries out integration, obtain x (t), and obtains x (t) produces accidental resonance moment position x in the double-deck stochastic system of one deck accidental resonance model and two layers of accidental resonance model composition
mvalue and x
mcorresponding resonance moment t
1and and t
1corresponding noise D
1, D
1for the value of in D;
Controller utilizes formula
Calculate the signal to noise ratio that double-deck stochastic resonance system exports; Wherein, Δ U=a
2/ 4b; Obtain output signal-to-noise ratio SNR
1;
(7-3) SNR is worked as
1>=SNR
standard, then controller control screw motor rotates with rotating speed C1;
Otherwise controller controls screw motor and rotates with rotating speed C2;
After B minute, return step (7-1).
Although buoyancy aid of the present invention is thrown in usually under the condition that stormy waves is less, the water flow fluctuation at river course or marine diverse location place is relatively more frequent, buoyancy aid can on the water surface up-down vibration;
Such as, enter river mouth place in river, due to the remittance effect in tributary, flow rate of water flow can speed, current meeting big ups and downs; Time in the middle part of river course, current can be obviously slack-off under the drag effect on riverbank, both sides; Marine run into spring up as undercurrent time, also there will be the situation of current big ups and downs.When water flow fluctuation is frequent, buoyancy aid needs to move at a slow speed, otherwise buoyancy aid easily overturns; During water flow stationary, buoyancy aid can movement fast, thus ensures that buoyancy aid moves to predetermined anchor point as early as possible.
The information of water flow fluctuation is comprised in the Due To The Oscillations of A Floating Body signal that vibrating sensor detects, the present invention detects the vibration signal of buoyancy aid by vibrating sensor, one section of detection signal Spect (t) in controller selected distance current time B minute, and through a series of data processing, obtain the output signal-to-noise ratio SNR characterizing water flow fluctuation degree
1, work as SNR
1>=SNR
standard, then controller control screw motor rotates with rotating speed C1; Otherwise controller controls screw motor and rotates with rotating speed C2; Thus enable the present invention adjust buoyancy aid translational speed in time according to water flow fluctuation situation, when water flow fluctuation is frequent, buoyancy aid moves at a slow speed; During water flow stationary, buoyancy aid is movement fast, both ensure that the stationarity of buoyancy aid also guarantees that buoyancy aid moves to predetermined anchor point as early as possible.
SNR
standardobtained by following method:
When water flow stationary, screw motor rotates with the average speed of C1, C2, above-mentioned steps detection and data processing is utilized to obtain an output signal-to-noise ratio, and repeatedly carry out 100 to 200 experiments, obtain 100 to 200 output signal-to-noise ratios, this mean value definition is SNR by the mean value of each output signal-to-noise ratio calculated
standard.
As preferably, m is 20 to 30; A
1be 15 to 21 meters, P is 1000 to 3500 luxs.
As preferably, n is 500 to 2000 meters, and T is 2 to 4 minutes.
Therefore, the present invention has following beneficial effect:
(1) impact of current can be overcome, move to predetermined anchor point direction all the time, utilize optical cable to attract the fish in water to arrive predetermined anchor point as early as possible;
(2) attracting scope is large, for purse seine fishing provides conveniently;
(3) good stability, is not easy to overturn.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of buoyancy aid of the present invention;
Fig. 2 is a kind of structural representation of rudder of the present invention, screw motor, screw and optical cable;
Fig. 3 is a kind of theory diagram of the present invention;
Fig. 4 is a kind of flow chart of embodiments of the invention 1;
Fig. 5 is a structural representation of airtight cavity of the present invention.
In figure: buoyancy aid 1, controller 2, motor 3 of coming about, GPS position indicator 4, memory 5, luminous intensity adjusting device 6, closed cavity 7, illuminator 8, optical cable 9, rudder 10, guiding vertical tube 11, screw motor 12, screw 13, data collecting card 14, power amplifier 15, vibrating sensor 16, weight ring 17, solar panel 18, power switch 19.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
Embodiment is as shown in Figure 1,3 a kind of optical cable purse seine fish-baiting instrument waterborne, comprise ship shape buoyancy aid 1, be located at the power switch 19 on buoyancy aid, be located at the controller 2 in buoyancy aid front portion, motor 3 of coming about, GPS position indicator 4, memory 5, accumulator for powering, be located at the luminous intensity adjusting device 6 in buoyancy aid rear portion;
Closed cavity 7 as shown in Figure 5, the illuminator 8 be located in closed cavity; 5 one end being located at buoyancy aid rear portion to be stretched in airtight cavity and the optical cable 9 be tightly connected with airtight cavity;
As shown in Figure 2, be located at rudder 10,5 on buoyancy aid lower surface for holding the guiding vertical tube 11 of optical cable, and be located at screw motor 12, the screw 13 below buoyancy aid; Luminous intensity adjusting device is electrically connected with illuminator, and the optical cable other end passes buoyancy aid and exposes outside buoyancy aid lower surface, and the vertical rotating shaft of motor of coming about is connected with rudder, and the rotating shaft of rudder, screw motor is connected successively with screw;
As shown in Figure 3, luminous intensity adjusting device comprises data collecting card 14 and power amplifier 15, data collecting card is provided with the signal input interface for being electrically connected with controller, data collecting card is electrically connected with the input of power amplifier, and the output of power amplifier is connected with the power electric of illuminator;
Controller is electrically connected with power switch, motor of coming about, memory, GPS position indicator, luminous intensity adjusting device and screw motor respectively.Every bar optical cable bottom is equipped with 3 weight rings 17 adopting lead material to make.Also comprise the solar panel 18 be located on buoyancy aid, solar panel is connected with storage battery.Come about motor and screw motor is waterproof machine, and illuminator is LED.
As shown in Figure 4, a kind of fishing method utilizing optical cable purse seine fish-baiting instrument waterborne attracting, comprises the steps:
Step 100, region and purse seine laying depth A are fished in setting
1be 18 meters, fish for bottom, region and around purse seine is set, arrange fixed light source Halogen lamp LED fishing for overlying regions, on the edge of fishing for region, selected 30 anchor points, store the longitude and latitude of 30 anchor points in memory;
Step 200,30 waterborne optical cable purse seine fish-baiting instruments corresponding with each anchor point are positioned over respectively and fish for outside region and anchor point 1000 meters corresponding to distance waterborne, and making optical cable lower end be positioned at 18 meters of under water, the intensity that controller controls by luminous intensity adjusting device the light that illuminator sends is 2000 luxs; Turn on the power switch, controller controls screw machine operation, and each optical cable purse seine fish-baiting instrument waterborne moves towards the anchor point of its correspondence respectively;
Step 300, on the water in optical cable purse seine fish-baiting instrument moving process, each optical cable purse seine fish-baiting instrument waterborne all carries out the adjustment of following direction:
On the water in optical cable purse seine fish-baiting instrument moving process, current make optical cable purse seine fish-baiting instrument waterborne off-course, and the GPS position indicator of optical cable purse seine fish-baiting instrument waterborne detects the current residing geographical position of buoyancy aid, is stored in memory by the geographical position of detection;
Every 5 minutes, controller calculated the direction of navigation according to optical cable purse seine fish-baiting instrument current geographic position waterborne and its predetermined anchor point, and is turned to by Electric Machine Control rudder of coming about, and makes the rudder of buoyancy aid point to predetermined anchor point direction all the time;
Step 400, on the water in optical cable purse seine fish-baiting instrument moving process, the luminous intensity that illuminator is sent dies down gradually:
On the water in optical cable purse seine fish-baiting instrument moving process, controller calculates the distance S between optical cable purse seine fish-baiting instrument waterborne and corresponding anchor point, the intensity that controller controls by luminous intensity adjusting device the light that illuminator sends dies down gradually according to the shortening of distance S, when making optical cable purse seine fish-baiting instrument waterborne move to corresponding anchor point, the luminous intensity that illuminator sends becomes 1600 luxs;
Step 500, utilizes instrument to be salvaged respectively by 30 optical cable purse seine fish-baiting instruments waterborne, replaces optical cable purse seine fish-baiting instrument waterborne attracting by Halogen lamp LED, drags the seine netting of laying in advance.
Embodiment 2
Embodiment 2 comprises all structures and method part in embodiment 1, and also comprise the vibrating sensor 16 be located in buoyancy aid, vibrating sensor is electrically connected with controller; Also comprise the steps:
Step 610, is provided with standard signal to noise ratio snr in memory
standard, the rotating shaft rotating speed C1 of screw motor is 30 revs/min, rotating speed C2 is 50 revs/min; On the water in optical cable purse seine fish-baiting instrument moving process, vibrating sensor detects the vibration signal of buoyancy aid, one section of detection signal Spect (t) in controller selected distance current time 4 minutes;
Step 620, data processing:
Detection signal Spect (t) is inputted one deck accidental resonance model by controller
in, wherein, V (x, t) is potential function, and x (t) is Brownian movement Particles Moving lopcus function, and a, b are the constant of setting, and ξ (t) is external noise, and D is external noise intensity, and N (t) grasps noise in being,
for periodic sinusoidal signal, A is signal amplitude, and f is signal frequency, and t is run duration,
for phase place, if
Controller calculates V (x, t) for the first derivative of x and second dervative, and makes equation equal 0, obtains two layers of accidental resonance model:
Setting noise intensity D=0,
spect (t)=0, N (t)=0; The critical value calculating A is
The critical value of A is substituted in one deck accidental resonance model, and set X
0(t)=0, sn
0=0, with quadravalence jade for asking rain Ge Kuta Algorithm for Solving one deck accidental resonance model, obtain
And calculate
Wherein, x
nt n order derivative that () is x (t), sn
n-1the value of n-1 order derivative at t=0 place of S (t), sn
n+1the value of n+1 order derivative at t=0 place of S (t), n=0,1 ..., N-1; Obtain x
1(t), x
2(t) ..., x
n+1the value of (t);
Controller is to x
1(t), x
2(t) ..., x
n+1t () carries out integration, obtain x (t), and obtains x (t) produces accidental resonance moment position x in the double-deck stochastic system of one deck accidental resonance model and two layers of accidental resonance model composition
mvalue and x
mcorresponding resonance moment t
1and and t
1corresponding noise D
1, D
1for the value of in D; D is that the value of D and time correlation, be aware of t with a function of 0.01 loop cycle stepping in [0,1] scope
1moment, D
1just determine;
Controller utilizes formula
Calculate the signal to noise ratio that double-deck stochastic resonance system exports; Wherein, Δ U=a
2/ 4b; Obtain output signal-to-noise ratio SNR
1=76dB;
Step 630, works as SNR
1>=SNR
standard, then controller control screw motor rotates with rotating speed C1;
Otherwise controller controls screw motor and rotates with rotating speed C2;
After 4 minutes, return step 610.
In the present embodiment, SNR standard is 68dB, SNR
1=76dB, SNR
1> SNR
standard, controller controls screw motor and rotates with rotating speed C1.
Should be understood that the present embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (9)
1. an optical cable purse seine fish-baiting instrument waterborne, it is characterized in that, comprise ship shape buoyancy aid (1), be located at the power switch (19) on buoyancy aid, be located at the controller (2) in buoyancy aid front portion, to come about motor (3), GPS position indicator (4), memory (5), for the accumulator of powering, be located at the luminous intensity adjusting device (6) in buoyancy aid rear portion, closed cavity (7), be located at the illuminator (8) in closed cavity, some one end to be stretched in airtight cavity and the optical cable (9) be tightly connected with airtight cavity, be located at the rudder (10) on buoyancy aid lower surface, the guiding vertical tube (11) for hold optical cable identical with optical cable quantity, with the screw motor (12) be located at below buoyancy aid, screw (13), the optical cable other end passes buoyancy aid and exposes outside buoyancy aid lower surface, and the vertical rotating shaft of motor of coming about is connected with rudder, and the rotating shaft of rudder, screw motor is connected successively with screw,
Described luminous intensity adjusting device comprises data collecting card (14) and power amplifier (15), described data collecting card is provided with the signal input interface for being electrically connected with controller, described data collecting card is electrically connected with the input of power amplifier, and the output of described power amplifier is connected with the power electric of illuminator;
Controller is electrically connected with power switch, motor of coming about, memory, GPS position indicator, luminous intensity adjusting device and screw motor respectively.
2. optical cable purse seine fish-baiting instrument waterborne according to claim 1, is characterized in that, also comprise the vibrating sensor (16) be located in buoyancy aid, vibrating sensor is electrically connected with controller.
3. optical cable purse seine fish-baiting instrument waterborne according to claim 1, is characterized in that, every bar optical cable bottom is equipped with several weight rings (17) adopting lead material to make.
4. optical cable purse seine fish-baiting instrument waterborne according to claim 1, is characterized in that, also comprise the solar panel (18) be located on buoyancy aid, solar panel is connected with storage battery.
5. the optical cable purse seine fish-baiting instrument waterborne according to claim 1 or 2 or 3 or 4, is characterized in that, come about motor and screw motor are waterproof machine, and illuminator is LED.
6. utilize a fishing method for the optical cable purse seine fish-baiting instrument waterborne attracting described in claim 1, it is characterized in that, comprise the steps:
(6-1) region and purse seine laying depth A are fished in setting
1, fish for bottom, region and around purse seine is set, fixed light source is set fishing for overlying regions, selected m anchor point on the edge of fishing for region, by the storage of the longitude and latitude of m anchor point in memory;
(6-2) m the waterborne optical cable purse seine fish-baiting instrument corresponding with each anchor point is positioned over respectively fishes for outside region and waterborne apart from corresponding anchor point n rice, and make optical cable lower end be positioned at A under water
1place, the intensity that controller controls by luminous intensity adjusting device the light that illuminator sends is P; Turn on the power switch, controller controls screw machine operation, and each optical cable purse seine fish-baiting instrument waterborne moves towards the anchor point of its correspondence respectively;
(6-3) each optical cable purse seine fish-baiting instrument waterborne all carries out the adjustment of following direction:
On the water in optical cable purse seine fish-baiting instrument moving process, current make optical cable purse seine fish-baiting instrument waterborne off-course, and the GPS position indicator of optical cable purse seine fish-baiting instrument waterborne detects the current residing geographical position of buoyancy aid, is stored in memory by the geographical position of detection;
Every T minute, controller calculates the direction of navigation according to optical cable purse seine fish-baiting instrument current geographic position waterborne and its predetermined anchor point, and is turned to by Electric Machine Control rudder of coming about, and makes the rudder of buoyancy aid point to predetermined anchor point direction all the time;
(6-4) on the water in optical cable purse seine fish-baiting instrument moving process, controller calculates the distance S between optical cable purse seine fish-baiting instrument waterborne and corresponding anchor point, the intensity that controller controls by luminous intensity adjusting device the light that illuminator sends dies down gradually according to the shortening of distance S, when making optical cable purse seine fish-baiting instrument waterborne move to corresponding anchor point, the luminous intensity that illuminator sends becomes
(6-5) utilize instrument to be salvaged by each optical cable purse seine fish-baiting instrument waterborne, replace optical cable purse seine fish-baiting instrument waterborne attracting by fixed light source, drag the seine netting of laying in advance.
7. fishing method according to claim 6, describedly also comprises the vibrating sensor be located in buoyancy aid, and vibrating sensor is electrically connected with controller; It is characterized in that, comprise the steps:
(7-1) standard signal to noise ratio snr is provided with in memory
standard, the rotating shaft rotating speed C1 of screw motor, rotating speed C2, C2 > C1; On the water in optical cable purse seine fish-baiting instrument moving process, vibrating sensor detects the vibration signal of buoyancy aid, one section of detection signal Spect (t) in controller selected distance current time B minute;
(7-2) data processing:
Detection signal Spect (t) is inputted one deck accidental resonance model by controller
in, wherein, V (x, t) is potential function, and x (t) is Brownian movement Particles Moving lopcus function, and a, b are the constant of setting, and ξ (t) is external noise, and D is external noise intensity, and N (t) grasps noise in being,
for periodic sinusoidal signal, A is signal amplitude, and f is signal frequency, and t is run duration,
for phase place, if
Controller calculates V (x, t) for the first derivative of x and second dervative, and makes equation equal 0, obtains two layers of accidental resonance model:
Setting noise intensity D=0,
spect (t)=0, N (t)=0; The critical value calculating A is
The critical value of A is substituted in one deck accidental resonance model, and set X
0(t)=0, sn
0=0, with quadravalence jade for asking rain Ge Kuta Algorithm for Solving one deck accidental resonance model, obtain
And calculate
Wherein, x
nt n order derivative that () is x (t), sn
n-1the value of n-1 order derivative at t=0 place of S (t), sn
n+1the value of n+1 order derivative at t=0 place of S (t), n=0,1 ..., N-1; Obtain x
1(t), x
2(t) ..., x
n+1the value of (t);
Controller is to x
1(t), x
2(t) ..., x
n+1t () carries out integration, obtain x (t), and obtains x (t) produces accidental resonance moment position x in the double-deck stochastic system of one deck accidental resonance model and two layers of accidental resonance model composition
mvalue and x
mcorresponding resonance moment t
1and and t
1corresponding noise D
1, D
1for the value of in D;
Controller utilizes formula
Calculate the signal to noise ratio that double-deck stochastic resonance system exports; Wherein, Δ U=a
2/ 4b; Obtain output signal-to-noise ratio SNR
1;
(7-3) SNR is worked as
1>=SNR
standard, then controller control screw motor rotates with rotating speed C1;
Otherwise controller controls screw motor and rotates with rotating speed C2;
After B minute, return step (7-1).
8. the fishing method according to claim 6 or 7, is characterized in that, m is 20 to 30; A
1be 15 to 21 meters, P is 1000 to 3500 luxs.
9. the fishing method according to claim 6 or 7, is characterized in that, n is 500 to 2000 meters, and T is 2 to 4 minutes.
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| CN104285916B (en) | 2016-06-22 |
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