65results about How to "Swim fast" patented technology

The invention discloses a pulse jet type underwater robot based on a tubular origami structure, which is composed of a pulse jet mechanism and two steering propulsion mechanisms, wherein the pulse jetmechanism realizes the repetitive process of water storage-water spray-water storage-water spray by impulse jet propulsion. The structure of the two steering propulsion mechanisms is the same, the first steering propulsion mechanism realizes turning to the right and the second steering propulsion mechanism realizes turning to the left; the pulse jet mechanism realizes the functions of water storage and water spraying through the axial expansion and contraction of the tubular origami structure; the tubular origami structure is driven by the rack and pinion mechanism to realize the axial expansion and contraction of the tubular origami structure, the steering propulsion mechanism is driven by the streamlined semi-circular fish fin structure to perform the reciprocating swing to achieve thesteering propulsion function, and the fish fin structure is driven by the swing guide rod mechanism to achieve the reciprocating swing. The invention is a novel underwater robot and has the advantagesof simple structure, fast propulsion speed, flexible steering and the like.

The invention discloses an ultralow-temperature cryopreservation and activation method of sperms of scapharca broughtonii sckrenck. The method includes following steps: mixing and diluting seminal fluid of scapharca broughtonii sckrenck and a freezing-resistant liquid, carrying out a step-by-step cooling freezing process after a pre-cooling process, and carrying out unfreeze activation and activity detection after preservation for 2 weeks. The freezing-resistant liquid consists of a base liquid, a freezing-resistant protective agent and an additive. The base liquid is sterilized natural sea water or a 0.5 mol / L sodium chloride solution. The freezing-resistant protective agent is dimethyl sulfoxide with a volume concentration being 5%. The additive is trehalose. The long-period freezing preservation method of the sperms of the scapharca broughtonii sckrenck has important significance on fields such as artificial breeding, germplasm preservation, sustainable breeding and the like of the scapharca broughtonii sckrenck.

The invention discloses an automatic fry grading system which comprises a transparent pipe, a grading tank connected with the transparent pipe and an industrial personal computer connected with the grading tank. The inlet end of the transparent pipe is connected with a hose which is connected with a pond through a water tank with a slot. The outlet end of the transparent pipe is connected with thegrading tank. The outlet end of the grading tank is connected with a plurality of grading pipes. A CCD camera is arranged on the side face of the transparent pipe and connected with the industrial personal computer. The industrial personal computer is connected with a swing arm in the grading tank. The industrial personal computer is connected with valves at the inlet ends of the grading pipes. The automatic fry grading system can rapidly grade fish and is high in grading efficiency, accurate, automatic in grading process control, high in intelligent degree and good in safety.

The invention discloses lobster bait. The lobster bait comprises, by weight, 20-35 parts of fresh earthworms, 20-35 parts of raw sheep intestines, 20-35 parts of small trash fishes, 30-80 parts of fresh goat blood and fresh chicken blood, 3-5 parts of fresh caridina, 100-200 parts of wheat bran, 3-5 parts of powder, and 10-15 parts of edible adhesives. A prepared method of the lobster bait comprises the following steps: baking the earthworms, the raw sheep intestines and the small trash fishes respectively by using slow fire, drying the fresh goat blood, the fresh chicken blood and fresh small shrimps under the sun, grinding the above-mentioned ingredients into powder, mixing with the wheat bran, the powder and the edible adhesives, mixing thoroughly after adding 500 parts of water, steaming 40mins in a pot, and manufacturing into pills after being taken out of the pot, wherein each pill comprises 20 parts.

Discloses is a bait for catching turtles which is prepared from pig liver 1000g, river clam meat 500g, loach 500g, cordate houttuynia 300g, banksia rose 100g, wrinkled gianthyssop 100g, sandalwood 100g, stinkweed 500g, garden balsamine 300g, benzodiapin 20 tablets, green bean powder 2000g and flour 500g.

The invention provides a variable speed ship propeller. The variable speed ship propeller comprises a first conical gear, a speed changer, a second conical gear, a third conical gear, a transmission shaft, a protective net, a conical guide pipe, a cylindrical jetting guide pipe, a propeller, a fourth conical gear, a coupling and an alternating current variable frequency asynchronous motor; the protective net is arranged on the right side of the third conical gear; the conical guide pipe is mounted at the right end of the protective net; the cylindrical jetting guide pipe is assembled at the right end of the conical guide pipe; the third conical gear is connected with the propeller through the transmission shaft; the third conical gear is engaged with the second conical gear; the alternating current variable frequency asynchronous motor is mounted at the right end of the coupling; the fourth conical gear is connected with the coupling through a connecting shaft; the fourth conical gear is engaged with the first conical gear. The variable speed ship propeller is convenient to use and convenient to operate, and can change speed at a plurality of levels; the propelling efficiency of the propeller is improved; the stability is good; the reliability is high.

The invention discloses a bionic fishtail structure based on PVC gel artificial muscle driving. The bionic fishtail structure comprises a multi-joint bionic fishtail framework, a plurality of PVC gelartificial muscle driving modules, a tail fin, a tail end, a skin and other accessories. The bionic fishtail framework is composed of a pre-pressing block, a joint shaft and an installation groove. Each PVC gel artificial muscle driving module is composed of a plurality of PVC gel driving units, wherein an anode, a PVC gel film and a cathode form one PVC gel driving unit; the two PVC gel driving modules and the bionic fishtail skeleton form a driving joint. Based on the structure, bending deformation is driven in a left-right alternating mode, and therefore swing is generated.

The invention relates to the technical field of hydrological exploration, and discloses an underwater patrol robotic fish which comprises a robotic fish body, a power tail fin assembly is embedded in the rear end of the robotic fish body, a snorkeling device is installed at the position, close to the rear side of an ultrasonic detector, of the lower end of the robotic fish body, and propellers are installed on the rear sides of the two ends of the robotic fish body. The speed of the robotic fish in water can be controlled through the propeller and the power tail fin assembly, so that the robotic fish has the high swimming speed, meanwhile, the power tail fin assembly can adjust the balance of the robotic fish, steering or turning around of the robotic fish can be achieved by adjusting the angle between the propeller and the robotic fish body, and the robotic fish has flexible maneuverability; by adjusting the angles of the blades in the adjustable paddles, the angles of the blades adapt to the current water flow direction, the current water flow speed and the speed direction of the robotic fish, the robotic fish can have the optimal motion state, and high practicability is achieved.

The invention provides a long-distance transport wagon box for living fish. The wagon box comprises a box body and a box cover; the box body and the box cover are provided with insulation interlayers;the box body consists of a water tank and a filter tank, the water tank and the filter tank are separated by a division board, and the upper segment of the division board is provided with an overflowport; the bottom of the box body is provided with a heat exchange pipeline to connect with an externally hung compressor; the inner side wall of the water tank is provided with a wave making pump anda temperature sensor; the filter tank is provided with a first filter block and a second filter block, wherein the first filter block is arranged at the lower end of the overflow port, the first filter block is internally provided with an active carbon bag, the first filter block is communicated with the lower part of the second filter block, a water pump and a Venturi pipe are arranged in the second filter block, and the front end of the water pump is connected with the Venturi pipe; the branch pipe of the Venturi pipe is provided with an air inlet pipe. The long-distance transport wagon boxhas the beneficial effects that by utilizing the combination of the Venturi pipe and the water pump, air is blown in when circulating water is pumped simultaneously, a water body is oxygen-enriched,the living fish in the box doby can be promoted to swim, fish body vitality is enhanced, and the survival rate during transport is improved.

The invention discloses a fish multi-target tracking method based on a balanced joint network, and belongs to the technical field of aquaculture. According to the method, on the basis of a Chinese agricultural artificial intelligence innovation and entrepreneurship contest data set, optimization, arrangement and supplementation are carried out on the basis of an original data set, and a new OptMFT data set is generated; the robustness of the model in a complex environment is further enhanced by performing merging training on a data set; meanwhile, some negative sample image frames with poor image quality are removed, the training weight of data with obvious fish targets and clear swimming tracks is enhanced, the fish recognition precision of the model is further improved, and full-frame training is performed on a data set to enhance robustness verification of the model under the condition of high-speed swimming of fish schools; the method is wide in application range, can achieve a good effect in multiple breeding environments, and is high in practicability.

The invention relates to special bait for fishing carps and crucians, belonging to the special bait for fishing. The special bait for fishing carps and crucians is characterized by comprising the following materials: 500g of shrimp meal, 500g of monkshood, 500g of green bamboo leaves, 1,000g of illiciumsimonsii, 5,000g of rhododendron molle, 100g of Semen Strychni, 1,000g of mandala, 500g of tea plant leaves, 300g of fish appetitive agent, 1,000g of earthworm meal, 500g of semen cannabis, 6,000g of rice, 1,000g of millet, 1,000g of fish meal, 1,000g of puffed powder, 200g of shrimp sachet powder and 100g of fish sachet powder. The special bait for fishing carps and crucians is prepared by the following steps: putting the shrimp meal, the monkshood, the green bamboo leaves, the illiciumsimonsii, the rhododendron molle, the Semen Strychni, the mandala, the tea plant leaves, the fish appetitive agent and the semen cannabis together according to the proportion to pulverize into traditional Chinese medicinal powder; together putting the rice, the millet, the fish meal, the puffed powder, the shrimp sachet powder and the fish sachet powder into a pot to cook into dried earthworm cooked rice; taking out and putting the cooked rice into a big basin; cooling and uniformly stirring the cooked rice back and forth; forcefully folding the cooked rice back and forth for 10 minutes; making the cooked rice into balls with the weight about a quarter kilogram; putting the balls into the pot and steaming the balls on a fire for 20 minutes; extinguishing the fire and sealing the balls for 2 hours; and packing the ball-shaped fishing bait after being sealed into plastic bags for sealing. The special bait for fishing carps and crucians has heavy fishy sachet smell which is particularly heavy in water so as to trap a great amount of fishes rapidly gathering after smelling the smell.

The invention discloses a land culture method for tuna, and belongs to the field of aquaculture. Due to the fact that land culture of the tuna is different from cage culture, culture conditions and density, the bait type and the feeding mode corresponding to land culture are provided, and therefore the aim of successfully culturing the tuna on the land is achieved.

The invention relates to bait for trapping lobsters, belonging to special bait for trapping lobsters. The bait for trapping lobsters comprises the following raw materials: 3500g of fresh earthworms, 3500g of raw sheep intestine, 3500g of small rough fishes, 3500g of fresh goat blood, 3500g of fresh chicken blood, 300g of aquatic spice, 300g of fresh Neocaridina, 20000g of wheat bran, 500g of puffed powder and 1500g of edible bond. The preparation method of the bait comprises the following steps: drying the earthworms, the raw sheep intestine and the small rough fishes on mild fire, respectively airing the fresh goat blood, the fresh chicken blood and the fresh Neocaridina under the sun and proportionally taking the earthworms, the raw sheep intestine, the small rough fishes, the fresh goat blood, the fresh chicken blood and the fresh Neocaridina and combining together to grind into fine powder; then, adding the aquatic spice, the wheat bran, the puffed powder and the edible bond to mix and adding 500g of water to stir uniformly; and putting in a pot for drying for 40 minutes, pouring out, making pills by 20g per pill and airing for spare use. A bait pill in each cage or net can trap a large amount of lobsters.

The invention relates to a method for preparing a tilapia bait. The tilapia bait consists of eucommia bark, morinda officinalis, rhizoma curculiginis, cynomorium songaricum, cassia seeds, toona sinensis leaves, herba cistanches, sweet corn, float grass, extruded meal, paddy rice and fresh trash fish, is specially used for entrapping tilapias, is strong in aroma and sweet in taste, and has extremely strong fishy flavor when being put into water, so that the tilapia bait can lure a large number of tilapias into a prepared cage in the shortest time. The tilapia bait can be used for entrapping a large number of the tilapias, and can also be used for fishing and hitting nests, the entrapping effect is good, and the entrapping efficiency is high, so that the defect that a large number of the tilapia cannot be gathered for fishing on a large water surface, a wild water surface and a complex terrain water surface is effectively overcome.

The invention provides a method for cyclically utilizing water plants of a river crab pond. The method comprises the following steps: managing the river crab pond: cleaning sludge in the river crab pond, disinfecting the river crab pond by utilizing quick lime, bleaching powder and tea seed meal, and then insolating the pond; managing the water plants, applying fertilizer and throwing in bellamyaquadrata: arranging a fencing grass planting region in the river crab pond, planting the water plants, and cutting off the water plants in summer; adding the bellamya quadrata before Qingming Festival; throwing in river crabs: throwing in young river crabs at the last ten-day period of March; carrying out grass carp intercropping: placing a grass carp intercropping net box in the pond at the firstten-day period of June; throwing in grass carp fries: throwing in the grass carp fries into the grass carp intercropping net box at the first ten-day period of July; feeding feed: only feeding feed to the river crabs, but not feeding feed to the grass carps, and feeding the grass carps with the water plants cut from the river crab pond; regulating and controlling the water quality of the river crab pond. According to the technical scheme of the invention, efficient combination of a plurality of types of high-quality aquatic products is realized, the utilization rate of a water body and the planted water plants is improved, the output-input ratio is improved and the comprehensive economic benefit of the river crab pond is remarkably improved.

The invention relates to a preparation method of bait for trapping fish at the bottom layer; the bait comprises chicken intestine powder, pork liver powder, viviparus powder, blood worm powder, shell powder, freshwater shrimp powder, miscellaneous fish meal, clam worm powder, corn flour, sorghum flour, soybean cake powder, sweet potato flour, asparagus cochinchinensis powder, raw rice and immature bitter orange powder; and the bait is specially used for trapping the fish at the bottom layer is rich in fragrance and sweet in taste as well as thick in fishy smell after being put into water, so that a great deal of fish at the bottom layer can be trapped onto the preset surface of the water within the shortest time. The formulation of the bait can be used for trapping and catching a great deal of fish as well as nesting, and is good in trapping effect and high in trapping efficiency, so that the defect that a great deal of fish at the bottom layer of the large water surface, the wild water surface and the water surfaces of complex terrains can not be gathered together to be fished can be effectively overcome.

The invention relates to special bait for trapping silver carps and bighead carps, belonging to special bait for fishing. The special bait for trapping silver carps and bighead carps comprises the following materials: 13 to 22 of corn flour, 3 to 8 of milk powder, 5 to 9 of puffed powder, 6 to 11 of antarctic shrimp meal, 10 to 19 of sweet potato powder, 6 to 11 of weedicide powder, 12 to 18 of fish appetitive powder, 1 to 5 of fiber-drawing powder, 2 to 7 of silver carp and bighead carp powder, 8 to 15 of karbutilate powder and 2 to 7 of aquatic sachet. The special bait for trapping silver carps and bighead carps is prepared by the following steps: airing and putting the weedicide in a dryer; controlling the dryer to be at a temperature of 50 DEG C to 90 DEG C, the drying time to be from 1 hour to 3 hours and the dryness of the substances to be dried to be from 85 percent to 95 percent; taking out and putting the substances in a pulverizer to pulverize into particles; respectively putting the sweet potatoes and the karbutilate in the pulverizer to pulverize into particles; and proportionally putting all the substances in a mixing bucket which is arranged on a mixing machine for 10 minutes to 1 hour until being fully mixed. The special bait has heavy fishy sachet smell which is particularly heavy in water so as to trap fishes rapidly gathering after smelling the smell and trap a great amount of silver carps and bighead carps.

The invention belongs to the technical field of feeding methods, and particularly discloses a fish feeding method based on deep learning and image recognition. The method comprises the following steps: S1, building a deep learning network structure model in a computer, and carrying out the training, so as to judge the feeding mode of a fish school and the specification of the fish school, and the specification comprises the size or weight; s2, a camera group photographs the corresponding culture ponds, and a computer judges the specifications of fish schools in the culture ponds; s3, trial feeding is conducted, and the computer analyzes the feeding mode of the fish schools according to the pictures; s4, feeding for the first time according to the first feeding amount; s5, carrying out subsequent feeding according to the addition amount; and S6, the camera group monitors the specification of the fish school, and if the specification of the fish school belongs to the next stage of the feeding guide, the computer issues food of the corresponding specification and the corresponding adding amount to the intelligent feeding machine during next feeding. According to the method, the problem that time and labor are wasted due to an existing feeding mode can be solved.

The invention relates to the technical field of underwater photography equipment, and concretely relates to underwater photography equipment with an intelligent light supplementing function. The underwater photography equipment with the intelligent light supplementing function comprises a machine body working underwater, two symmetrical handles are fixed to the machine body, a diver can hold the handles with two hands to carry out underwater photography work, a rotating cavity is formed in the end wall of the side, away from the handles, of the machine body, a camera is rotatably arranged in the rotating cavity, and the camera is arranged in the rotating cavity. An imaging cavity is formed in the end wall of the side, away from the handle, of the camera, a photographing mechanism used for photographing underwater images is arranged in the imaging cavity, a display screen is fixed to the end wall of the side, where the handle is located, of the fuselage, and a diver can observe the images photographed by the photographing mechanism through the display screen. According to the invention, intelligent light supplement during underwater photography can be realized, stability underwater can be maintained, and a diver can be driven to swim quickly in emergency.

The invention discloses an underwater bionic jellyfish based on fluid conveying pipe driving and belongs to the field of underwater robots. The underwater bionic jellyfish comprises a head part and atentacle part, wherein the head part comprises a sealed shell, a control module, a water pump, a flow control valve, an in-cavity fluid conveying hard pipe, a multi-way connector and an in-cavity fluid conveying hose; these structures are fixed inside a sealed cavity; the tentacle part comprises multiple fluid conveying hoses for the tentacle part and soft springs; and each of the fluid conveyinghoses for the tentacle part extends naturally in an original state, and the fluid conveying hose for the tentacle part is tensioned by each of the soft springs to be bent. The underwater bionic jellyfish disclosed by the invention is based on a bionics structure of jellyfishes; the fluid conveying hoses are taken as tentacles and get bent and deformed by the springs; then, under force generated from water pumping by the water pump, the fluid conveying hoses are driven to extend or discharge water by fluttering to produce push force, so advancing is realized and thus a motion structure of the bionic jellyfish is simplified; practicability and economic performance are improved; the underwater bionic jellyfish is energy-saving and environment-friendly; noise is small; efficiency is high; thesize is small; and the jellyfish is flexible and mobile.

The invention relates to the field of minisize robots, in particular to a propelling device of a minisize swimming robot. The propelling device comprises a head portion in a spheroid shape, a connection part and a tail portion; a minisize motor, energy devices, a minisize controller and sensors are installed in the head portion; the head portion and the tail portion are connected through the connection part; the connection part comprises two conical helix lines, center lines of the two conical helix lines coincide and intersect for forming a conical double helix structure, the small end of the connection part is connected with the minisize motor in the head portion, and the large end of the connection part is connected with the tail portion; the tail portion comprises two helix lines, and center lines of the two helix lines coincide and intersect for forming a cylindrical double helix structure, By means of the propelling device of the minisize swimming robot, the swimming speed of the minisize robot is greatly raised, the structure is concise and compact, the manufacturing difficulty is low, the required operation space is small, the system structure is stable, and high robustness and adaptability are achieved.

The invention relates to special bait for trapping turtles. The special bait comprises the following materials by weight percentage: 3 to 7 of goat liver, 4 to 8 of goat lungs, 5 to 9 of goat bones, 3 to 5 of ordate houttuynia, 8 to 11 of liquorice powder, 5 to 11 of small rough fishes, 18 to 30 of raw green bean powder, 3 to 5 of aquatic sachet powder, 4 to 10 of fishy sachet powder, 5 to 11 of shrimp meal, 1 to 5 of sesame oil, 2 to 6 of edible bond, 3 to 8 of edible swelling agent and 3 to 7 of hunger-accelerating agent. The special bait for trapping turtles is prepared in the following steps: proportionally taking and putting the goat liver, the goat lungs, the goat bones and the small rough fishes in a drier; controlling the drier to be at a temperature of 80 DEG C, the drying time to be 2 hours, and the dryness of the drying substances to be 90 percent; and taking out and putting the substances into a pulverizer to pulverize into particles. All the pulverized substances have a particle size of 0 to 60 meshes and are all proportionally put in a mixing bucket which is arranged on a mixing machine for 40 minutes; 300g to 500g of water is added to stir after the substances are fully mixed; and then, the substances are put in an iron pot to steam for 30 minutes and taken out for spare use.

The invention relates to the technical field of aquaculture, in particular to a method for managing pelteobagrus fulvidraco during dragnet exercise. The method comprises the following steps: thoroughly changing water in a pond and injecting new water to the pond one day before first dragnet exercise, wherein galactomannan, galactose, monocalcium phosphate, white vinegar and choline are added to each liter of new water before new water injection; stopping feeding one day before the first dragnet exercise; feeding the pelteobagrus fulvidraco with a feed prepared from ciliate desert-grass, fish meal, buckwheat powder, undaria pinnatifida, soybean flour and bacillus natto after the first dragnet exercise; carrying out second dragnet exercise one day after the first dragnet exercise is ended, wherein the pelteobagrus fulvidraco is not fed with any food during a period from ending of feeding after the first dragnet exercise to the second dragnet exercise, water in the pond is changed thoroughly before the second dragnet exercise, and the pelteobagrus fulvidraco may leave from the pond after the second dragnet exercise is ended.

The invention relates to the technical field of aquaculture, and specifically relates to an ecological silvery pomfret fry breeding method. The ecological silvery pomfret fry breeding method specifically comprises the following steps: collecting fertilized eggs; carrying out hatching; rearing fries; and carrying out transitional cultivation with an artificial feed. Water exchange quantity and sewage suction rate are reduced in virtue of addition of probiotics and a living algae solution into the water in cooperation with adoption of a reasonable natural bait feeding way, so that a stable environment is provided for growth and development of the silver pomfret fries; and thus, mortality rate of the fries in an early stage of breeding is greatly reduced. Moreover, the probiotics are used incooperation with the natural baits in a later stage of breeding so as to improve adaptability of silvery pomfret juveniles to artificial baits, so that juvenile elimination rate is reduced in the stage with production cost decreased. Therefore, fry survival rates, as well as fry rearing and breeding densities, of the silvery pomfret are improved so as to finally overcome the problem of large-scalesilvery pomfret fry breeding.

The invention relates to a water area power life jacket which comprises a lifesaving part provided with a buoyancy bag, a pushing part for pushing a human body to move, a control part for controllingthe pushing part to be opened and closed and a power supply part for supplying power to the pushing part, whereinthe power supply part is in watertight connection with the lifesaving part and is electrically connected with the pushing part; the pushingpart comprises a connecting piece wrapping the leg and a pusherconnected to the connecting piece, and the pusherworks in the foot direction. The water area power life jacket has the effects of providing power for a user and increasing the swimming speed in water.

A wetsuit has a back, an access opening at the neck portion, and a closure system provided at the access opening. The closure system has an internal gasket made of a generally V-shaped piece of flexible material having an upper edge and two side edges, and a collar connected to the upper edge of the gasket. An inner flap is hingedly attached to one of the side edges of the gasket, and has an outwardly-facing surface, with at least one Velcro™ pad provided thereon. An outer flap is hingedly attached to another of the side edges of the gasket, and has an inwardly-facing surface, with at least one Velcro™ pad provided thereon.

The invention discloses a swimming propeller. The upper end of an U-shaped protective plate (4) is provided with a securing waistband (1), an accelerating box (6) is fixedly arranged on the lower end of the U-shaped protective plate (4), a chain wheel (7) is movably arranged at the lower middle portion inside the accelerating box (6), wheel teeth (10) are arranged at the side edge of periphery of the chain wheel (7), a small gear (11) is movably arranged at the lower end inside the accelerating box (6) by a rotating shaft (13) and a support (12) and movably connected with the wheel tooth (10) at the peripheral side of the chain wheel (7), and a spiral blade (14) is fixed at the lower bottom of the rotating shaft (13). According to the swimming propeller, the large chain wheel is used for driving the small gear, a pedal is used for driving, and thus the spiral blade is driven to rotate and boost; the swimming propeller is fixed on the waist of a person by the U-shaped protective plate and the waistband, fast swimming is thus achieved; the swimming propeller is convenient to use, simple to operate and easy for water rescue and entertainment.

The invention discloses a bionic fish bait capable of emitting light for detection. The bionic fish bait comprises a fish bait main body, wherein a bionic back fin is mounted at the top part of the fish bait main body; a bionic chest fin is installed at one side of the fish bait main body; a light-emitting belt is installed on the surface of the fish bait main body; a bionic fish eye is installedat one end of the fish bait main body; a steering fish tail is installed at the other end of the fish bait main body; an electric control box is installed in the fish bait main body; and a fixed beltis installed at one side of the electric control box. The bionic fish bait provided by the invention has the following beneficial effects: the light-emitting belt arranged on the outer wall of the fish bait main body emits light; telescopic control to the light-emitting belt is conducted through a telescopic toothed plate; telescopic control to light-emitting lamps is conducted at the same time; searchlighting of the underwater environment and underwater fish shoal control are conducted; the detection function of the fish bait is improved; meanwhile, the electric control box is used for controlling light emitting; a luring signal is sent out; and the fish shoals are controlled.