CN112314477A - Remote investigation equipment and investigation method for large benthos in marine ranching - Google Patents
Remote investigation equipment and investigation method for large benthos in marine ranching Download PDFInfo
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- CN112314477A CN112314477A CN202011146474.9A CN202011146474A CN112314477A CN 112314477 A CN112314477 A CN 112314477A CN 202011146474 A CN202011146474 A CN 202011146474A CN 112314477 A CN112314477 A CN 112314477A
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- 238000009304 pastoral farming Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 229910001220 stainless steel Inorganic materials 0.000 claims description 72
- 239000010935 stainless steel Substances 0.000 claims description 72
- 241001465754 Metazoa Species 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 14
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000004083 survival effect Effects 0.000 claims description 4
- 239000002028 Biomass Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
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- 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
- A01K61/00—Culture of aquatic animals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of marine fishery resource investigation, in particular to a device and a method for remotely investigating large benthos in a marine ranching field, which are characterized in that a plurality of grid lines are arranged on an organic glass sealing cover to form a plurality of illumination grid areas, a plurality of grid projection areas are correspondingly formed on the bottom surface of an underwater remote video facility support under the action of an annular lamp tube, an underwater remote video camera is used for shooting, an underwater remote video image of each investigation point is remotely received by a video information remote receiving PC (personal computer), the type name and the number of the large benthos in the marine ranching field in each grid projection area are respectively observed and recorded, the problem of low investigation efficiency in the prior art is solved, meanwhile, divers are not required to carry out diving sampling, the investigation working cost of the benthos in the marine ranching field can be greatly reduced, the fineness of the investigation work is also improved.
Description
Technical Field
The invention relates to the technical field of marine fishery resource investigation, in particular to a marine ranching large-scale benthos remote investigation device and a marine ranching large-scale benthos remote investigation method.
Background
The marine ranch is a novel marine fishery production mode with the functions of environmental protection, resource maintenance and fishery continuous output, and has received attention and application from more and more countries. At present, 5 batches of 110 demonstration areas of national-level marine ranches are approved to be constructed in China, and the total sea area reaches 20 ten thousand hectares. Large marine benthos are important fishery resources in marine ranches and also are important components of marine biological resources. The large benthonic animals in the marine ranch in China mainly comprise sea cucumbers, abalones, lobsters, sea urchins, conchs, scallops and the like.
The current method for surveying marine benthos in marine ranching mainly adopts divers to submerge the seabed for observation, and the surveying method is simple and extensive and is difficult to know the variety and the quantity characteristics of the benthos in detail. Meanwhile, the underwater remote video technology is a novel marine underwater observation technology, and underwater conditions can be dynamically observed in real time.
However, the existing method for investigating benthos on the sea bottom of the marine ranch has the following defects:
1. by means of diver diving sampling, the species and quantity characteristics of benthos on the sea bottom are difficult to know in detail, the investigation efficiency is low, and the investigation working cost is relatively high;
2. the conventional benthos investigation equipment generally shoots and records the whole large area through a camera, but ecological parameters such as the type, the quantity, the specification, the interspecific relationship, the distribution pattern and the like of benthos in an investigation area are difficult to measure in detail, quantitative investigation of the ecological parameters of the large-scale benthos distribution pattern of the marine ranch cannot be realized, and the investigation fineness cannot meet the technical requirement of accurate management of the marine ranch.
Disclosure of Invention
The invention aims to: the invention provides a marine ranching large-scale benthos remote investigation device and a marine ranching large-scale benthos remote investigation method, which are used for solving the problems that the investigation efficiency is low, the investigation working cost is high and the detailed investigation of the distribution pattern of indexes such as the type, the quantity, the size and the specification of the marine ranching large-scale benthos on the sea bottom is difficult to carry out in the prior art caused by diver diving sampling.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
the remote investigation equipment for the large benthos in the marine ranching comprises an underwater remote video facility and an underwater remote video facility support, wherein the underwater remote video facility is fixed on the underwater remote video facility support;
the underwater remote video facility comprises an underwater remote video camera, an annular lamp tube, an organic glass sealing cover, a transparent glass lens cover and a stainless steel shell;
the underwater remote video camera and the annular lamp tube are arranged in the organic glass sealing cover, a transparent glass lens cover is arranged on the bottom surface of the organic glass sealing cover and is in sealing connection with the organic glass sealing cover, the organic glass sealing cover is fixed in the stainless steel shell, and only one surface of the transparent glass lens cover is kept transparent; the underwater remote video camera and the annular lamp tube are tightly attached to the transparent glass lens cover;
the underwater remote video facility support is of a hollow hopper-shaped structure, and the inner diameter of the underwater remote video facility support is gradually increased from top to bottom; the top surface of the underwater remote video facility support is fixedly connected with the transparent glass lens cover; the transparent glass lens cover surface is carved with a plurality of grid lines to form a plurality of irradiation grid areas which are arranged in an array way; the plurality of irradiation grid areas form a plurality of grid projection areas on the bottom surface of the underwater remote video facility support under the irradiation of the annular lamp tube;
the marine ranching large-scale benthos remote investigation equipment further comprises a mobile terminal and a video information remote receiving PC, and the underwater remote video facility is connected with the mobile terminal and the video information remote receiving PC through an underwater remote video facility cable;
and the video information data of the large benthos part of the marine ranching in the grid projection area acquired by the underwater remote video camera are sequentially transmitted to the mobile terminal and the video information remote receiving PC.
The underwater remote video facility support is a four-side bucket type stainless steel body, the four sides of the underwater remote video facility support are all cross-layer external expansion inclined trapezoidal surfaces, each cross-layer external expansion inclined trapezoidal surface is formed by welding a plurality of stainless steel plates, the upper stainless steel plate and the lower stainless steel plate are overlapped in the horizontal direction, a space exists in the vertical direction, and the upper stainless steel plate and the lower stainless steel plate are welded through stainless steel welding nails.
As an improvement of the technical scheme of the marine ranching large-scale benthos remote investigation equipment, the bottom surface of the transparent glass lens cover is a square surface, and the side length is 10 cm; the square surface of the transparent glass lens cover is divided into 100 irradiation grid areas of 1cm by 1cm in total of 10 rows by 10 columns; and 100 grid lines of 1cm by 1cm in total of 10 rows by 10 columns on the transparent glass lens cover can form 100 grid projection areas of 10cm by 10 columns in total of 10 rows by 10 columns on the bottom surface of the underwater remote video facility support under the irradiation of the annular lamp.
The underwater remote video facility support is 100cm in height, the top surface and the bottom surface are both squares, the side length of the square on the top surface is 10cm, and the side length of the square on the bottom surface is 100 cm; the four side surfaces are inclined trapezoids with an upper bottom of 10cm and a lower bottom of 100 cm; the inclined plane trapezoids on the four side faces are formed by 10 stainless steel laths with the width of 15cm, the length of the inclined plane trapezoids is sequentially increased from 10cm to 100cm, the stainless steel laths with the length tolerance of 10cm are transversely welded, the width of the upper layer stainless steel lath and the lower layer stainless steel lath which are overlapped in the horizontal direction is 2.5cm, the upper layer stainless steel lath and the lower layer stainless steel lath are welded through two welding nails, the upper layer stainless steel lath and the lower layer stainless steel lath are outwards expanded layer by layer from top to bottom, and the interval between the upper layer stainless steel lath and the lower layer stainless.
The underwater remote video facility cable comprises an underwater remote video power line, an annular lamp tube power line, an underwater remote video information transmission line and a steel cable connected with the underwater remote video facility, the underwater remote video facility cable is sleeved with a waterproof plastic sleeve, and the outer edge of the waterproof plastic sleeve is carved with a depth scale.
As an improvement of the technical scheme of the marine ranching large-scale benthos remote investigation equipment, the underwater remote video camera and the annular lamp tube are arranged on the same plane, and the underwater remote video camera is arranged in the center of the annular lamp tube.
As an improvement of the technical scheme of the marine ranch large-scale benthos remote investigation equipment, the underwater remote video facility support and the underwater remote video facility are detachably connected.
As an improvement of the technical scheme of the marine ranching large-scale benthos remote investigation equipment, the mobile terminal comprises a mobile server and a display screen.
As an improvement of the technical scheme of the marine ranching large-scale benthos remote investigation equipment, the video information remote receiving PC is a desktop computer and is connected with the mobile terminal through microwaves.
A remote investigation method for large benthos in a marine ranching field uses the remote investigation method for large benthos in a marine ranching field, and comprises the following steps:
carrying large-scale benthos remote survey equipment of the marine ranching to a first survey point on the ship, and installing an underwater remote video facility and an underwater remote video facility support;
starting an underwater remote video camera and an annular lamp tube of an underwater remote video facility;
rotating the winch to sink the underwater remote video facility and the underwater remote video facility support, and observing the underwater remote video image on the mobile terminal until the underwater remote video facility support sinks and falls on the seabed;
keeping the underwater remote video facility and the underwater remote video facility support still at the sinking point for shooting for 10 minutes, and shaking the winch to winch the underwater remote video facility and the underwater remote video facility support to finish the data acquisition of the marine benthos survey sample of the first survey point; carrying the marine ranching large-scale benthos remote survey equipment to a second survey point on the ship, and collecting the marine ranching large-scale benthos survey sample data of the second survey point according to the method;
the underwater remote video image of each survey sample point is analyzed through a video information remote receiving PC, the video image of each survey sample point is divided into grid projection areas, the existence condition of the large benthonic animals in each grid projection area is observed, the types and the survival quantity of the large benthonic animals are identified according to activity conditions, the names, the numbers, the body lengths and the body widths of the large benthonic animals in each grid projection area are measured and recorded, the types, the numbers, the individual densities and the specification grades of the large benthonic animals in the survey sample sides, the body lengths, the body widths and other parameters of each individual are counted, the biomass of the large benthonic animals in the survey sample sides is measured and calculated, and the distribution pattern and the species dependency relationship of the large benthonic animals on the seabed are analyzed.
The invention has the beneficial effects that:
1. according to the invention, the underwater remote video facility can be effectively protected by adopting the stainless steel shell, and meanwhile, the underwater remote video facility support is of a stainless steel hollow hopper-shaped structure, so that on one hand, the quality of the underwater remote video survey facility can be protected, and damages caused by seawater corrosion, accidental impact and the like can be prevented; on the other hand, the stainless steel shell and the stainless steel underwater remote video facility support can effectively increase the overall weight of the underwater remote video facility support, and are convenient to sink quickly in seawater;
2. according to the invention, the underwater remote video facility support is a stainless steel hollow hopper-shaped structure, on one hand, the hollow hopper-shaped structure is expanded layer by layer, so that direct light rays of the top annular lamp tube can be conveniently gathered, and the light rays of the annular lamp tube can be gathered in a square projection area at the bottom of the underwater remote video facility support; on the other hand, the bucket-shaped structure of the underwater remote video facility support is a hollow structure, the upper layer stainless steel plate strip and the lower layer stainless steel plate strip are expanded outwards at an interval of 4.5cm in the vertical direction, and seawater can penetrate between the upper layer stainless steel plate strip and the lower layer stainless steel plate strip through welding of 2 stainless steel nails, so that buoyancy is reduced, and the underwater remote video survey facility is convenient to sink integrally;
3. in the invention, 10 lines and 10 columns of grid lines are arranged on a transparent glass lens cover to form 100 irradiation grid areas of 1cm and 1cm in total of 10 lines and 10 columns, under the irradiation of an annular lamp tube, 100 grid projection areas (investigation sample sides) of 10cm and 10cm in total of 10 lines and 10 columns are formed on the bottom surface of an underwater remote video facility support, the investigation sample sides are shot by an underwater remote video camera, and ecological parameters such as the type name, the number, the individual specification and the like of large benthos in each grid projection area are observed and recorded on a video information remote receiving PC (personal computer), so that the problem that the whole large area is shot and recorded by the camera in the prior art, but the quantitative parameter problem of species distribution of the large benthos in the sea bottom cannot be reflected is solved;
4. in the invention, 10 lines and 10 columns of grid lines are arranged on a transparent glass lens cover to form 100 irradiation grid areas of 1cm and 1cm in total of 10 lines and 10 columns, under the irradiation of an annular lamp tube, 100 grid projection areas (survey sample sides) of 10 lines and 10 columns in total of 10cm and 10cm are formed on the bottom surface of an underwater remote video facility support, the survey sample sides are shot by an underwater remote video camera, and the distribution and the distance relationship among submarine benthos species are observed, measured and recorded on a video information remote receiving PC (personal computer), so that the detailed ecological mechanisms of the survival interspecies relationship, the predation relationship, the competition relationship and the like of the large benthos in the marine rancy on the seabed can be analyzed;
5. according to the invention, the underwater remote video camera is arranged in the center of the annular lamp tube, and the illumination direction of the light of the annular lamp tube and the shooting direction of the underwater remote video camera are both in the direct light ray direction, so that the influence of light ray shadow on the investigation effect is avoided; the distance from the transparent glass lens cover to the bottom surface of the underwater remote video facility support is 100cm, the effective penetration distance of light in a water body is achieved, and the high definition of the distribution image of the benthos on the seabed shot by the remote video lens can be guaranteed.
6. According to the invention, the annular lamp tube and the underwater remote video camera are sealed in the organic glass sealing cover, so that the annular lamp tube and the underwater remote video camera can be effectively protected, and the service life is prolonged;
7. in the invention, no diver is needed to carry out diving sampling, so that the investigation work cost of benthos in the marine ranching can be greatly reduced, and the investigation work efficiency is also improved;
8. the invention adopts a stainless steel bracket sample with a hollow middle part, shoots the distribution image of the large benthos in the marine ranching field in the grid in a grid projection mode, does not need to collect and disturb the benthos on the sea floor, and has little ecological interference and damage.
9. The invention has the advantages of simple structure, easy assembly, convenient use, low manufacturing cost, energy saving, environmental protection and convenient popularization and application.
10. The invention is suitable for the characteristic of slow movement speed of marine benthos, is suitable for quantitative investigation of large benthos in any seabed area of a marine ranching, is also suitable for quantitative investigation of large benthos in non-marine ranching areas, positioning observation research of marine benthos ecology and other works, and has wide applicability and large quantity of acquired information;
drawings
FIG. 1 is a schematic view of the overall structure of a large benthos remote survey apparatus for marine ranching according to the present invention;
FIG. 2 is a perspective view of the remote investigation equipment for large benthos in marine ranching according to the present invention;
FIG. 3 is a schematic diagram of a marine benthos survey grid in which a transparent glass lens cover illuminates a grid area and a grid projection area in the marine ranching large-scale benthos remote survey equipment of the present invention;
fig. 4 is a top view of a bracket for a bucket-shaped underwater remote video facility in the large benthos remote surveying device for the marine ranching of the present invention.
Description of reference numerals: 1-an underwater remote video facility; 2-underwater remote video facility support; 3-remote receiving PC of video information; 4-a mobile terminal; 5-underwater remote video facility cable; 6-underwater remote video camera; 7-stainless steel housing; 8-organic glass sealing cover; 9-stainless steel laths; 10-stainless steel welding nails; 11-ring-shaped lamp tube; 12-transparent glass lens cover; 13-illuminating the grid area; 14-grid projection area.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments.
As shown in fig. 1 to 4, a marine ranch large benthos remote investigation device comprises an underwater remote video facility 1 and an underwater remote video facility support 2, wherein the underwater remote video facility 1 is fixed on the underwater remote video facility support 2;
the underwater remote video facility 1 comprises an underwater remote video camera 6, an annular lamp tube 11, an organic glass sealing cover 8, a transparent glass lens cover 12 and a stainless steel shell 7;
the organic glass sealing cover 8 is of a cube structure, wherein 5 surfaces of the organic glass sealing cover are of organic glass sealing structures, and the other surface of the organic glass sealing cover is in sealing connection with the transparent glass lens cover 12; the underwater remote video camera 6 is arranged in the center of the annular lamp tube 11, and both the underwater remote video camera and the annular lamp tube are arranged in the organic glass sealing cover 8; the organic glass sealing cover 8 is arranged in the stainless steel shell 7, and one surface of the transparent glass lens cover 12 is kept transparent; the underwater remote video camera 6 and the annular lamp tube 11 are in the same plane and are tightly attached to the bottom surface of the transparent glass lens cover 12.
In the invention, a plurality of grid lines are arranged on the transparent glass lens cover 12, a plurality of irradiation grid areas 13 which are arranged in an array are formed among the grid lines, and when the annular lamp tube 11 is directly projected to the transparent glass lens cover 12, the grid lines on the transparent glass lens cover 12 are projected on the bottom surface of the underwater remote video facility support 2 to form a grid projection area 14 which is amplified by a plurality of times.
The transparent glass lens cover 12 is marked with 10 lines by 10 lines of grid lines, and the 10 lines by 10 lines of grid lines form 100 irradiation grid areas 13 with 1cm by lcm in total, wherein the 10 lines by 10 lines of grid lines are formed; the annular lamp tube 11 is directly projected to an irradiation grid area 13 of the transparent glass lens cover 12, and the irradiation grid area 13 forms 100 grid projection areas 14 of 10 rows and 10 columns in total, 10cm and 10cm in total on the bottom surface of the underwater remote video facility support 2.
The marine ranching large-scale benthos remote investigation equipment also comprises a mobile terminal 4 and a video information remote receiving PC 3, wherein the underwater remote video facility 1 is sequentially connected with the mobile terminal 4 and the video information remote receiving PC 3 through an underwater remote video facility cable 5;
the underwater remote video camera 6 collects video information data of marine ranching benthos in a grid projection area 14 on the bottom surface of the underwater remote video facility support 2, and transmits the video information data to the mobile terminal 4 and the video information remote receiving PC 3 in sequence.
Further, remote video facility support 2 is the four sides bucket type stainless steel body under water, and the four sides of remote video facility support 2 under water are the oblique trapezoidal face of expanding outward by the layer, and every layer expands oblique trapezoidal face outward by 10 stainless steel laths 9 welding and forms. The upper stainless steel plate strip 9 and the lower stainless steel plate strip 9 are overlapped in the horizontal direction, so that the direct light rays of the annular lamp tube 11 can be conveniently gathered; the upper stainless steel plate strip 9 and the lower stainless steel plate strip 9 have gaps in the vertical direction and are welded through the stainless steel welding nails 10, so that seawater can penetrate conveniently in the sinking process of the underwater remote video investigation facility 1, the buoyancy is reduced, and the underwater remote video investigation facility sinks quickly.
Because the underwater remote video facility support 2 is made of stainless steel, on one hand, free sinking can be realized based on the weight of the underwater remote video facility support, on the other hand, the underwater remote video facility support is firm and durable, and the service life is ensured. Simultaneously, because the four sides of long-range video facility support 2 is the oblique trapezoidal face of expanding outward of delivering, the oblique trapezoidal face of expanding outward of every delivering is formed by the welding of a plurality of corrosion resistant plate strip 9, two corrosion resistant plate strip 9 overlap each other on the horizontal direction from top to bottom, there is the interval in the vertical direction, and weld through stainless steel welding nail 10 between two corrosion resistant plate strip 9 from top to bottom, long-range video facility support 2 can not only gather water printing opacity under water, guaranteed not to the leading to the fact the influence of benthos when the investigation, and can also carry out the light filling for the investigation region.
As an embodiment of the underwater remote facility support in the large benthos remote survey equipment for the marine ranching, the top surface of the underwater remote video facility support 2 is fixedly connected with a transparent glass lens cover 12, the underwater remote video facility support 2 is a four-side bucket type stainless steel body, the side length of a square on the top surface is 10cm, the side length of a square on the bottom surface is 100cm, the height of the square is 100cm, the upper top and the lower bottom are both hollow, the side length of the transparent glass lens cover 12 is 10cm, 100 irradiation grid areas 13 are formed on the transparent glass lens cover 12, and 100 grid projection areas 14 are formed on the bottom surface of the underwater remote video facility support 2 by the 100 irradiation grid areas 13 and are used as a large benthos survey sample side of the marine ranching; the size of each irradiation grid region 13 is 1cm x 1cm, and the size of a grid projection region 14 formed by projection of each irradiation grid region 13 is 10cm x 10cm, so that the size of each investigation region can be calculated better, the shapes and the sizes of the irradiation region and the projection region are ensured, the observation, the recording and the statistics of indexes such as size specifications, body parameters, distribution density and the like of marine benthos can be performed by investigators better, and the situations of missing investigation or repeated investigation are avoided; the underwater remote video facility support 2 is a hollow bucket-shaped support, four sides of the bucket shape are gradually-expanded inclined trapezoidal surfaces, the height is 100cm, the top surface and the bottom surface are both squares, the side length of the square on the top surface is 10cm, and the side length of the square on the bottom surface is 100 cm; the four side surfaces are 10cm at the upper bottom and 100cm at the lower bottom, the inclined plane trapezoids on the four side surfaces are formed by transversely welding stainless steel strips 9 with the widths of 10cm and 15cm and the lengths of 10cm to 100cm in sequence, the length tolerance of the inclined plane trapezoids is 10cm, namely the lengths of 10cm, 20cm, 30cm, … and 100cm in sequence are increased gradually, the upper layer stainless steel strip 9 and the lower layer stainless steel strip 9 are overlapped in the horizontal direction and have the width of 2.5cm, the upper layer stainless steel strip 9 and the lower layer stainless steel strip 9 are welded through 2 welding nails 10 and are outwards expanded layer by layer from top to bottom, and the upper layer stainless steel strip 9 and the lower layer stainless steel strip 9 are outwards expanded in the vertical direction and have the interval of 4.5 cm.
In the invention, the underwater remote video facility support 2 is a hollow bucket-shaped support, the bottom surface of the underwater remote video facility support 2 is tightly attached to the seabed after the underwater remote video facility support 2 is sunk to the seabed, and the bottom surface of the underwater remote video facility support 2 is the large benthos survey sample of the marine ranch.
In detail, in the invention, the investigation of the large benthos of the submarine ranch is carried out by the large benthos remote investigation equipment of the marine ranch, diving sampling by divers is not needed, the investigation working cost of the benthos of the marine ranch can be greatly reduced, and the investigation working efficiency is also improved. Moreover, in the invention, the size of a grid sample area shot by the underwater remote video camera 6 is limited by the hollow bucket-shaped underwater remote video facility support 2, so that the ecological parameters of the benthos on the seabed can be conveniently measured and analyzed.
When the submarine benthonic organism remote-receiving PC (personal computer) is used, the annular lamp tube 11 penetrates through the irradiation grid area 13 of the transparent glass lens cover 12 directly, 10 rows and 10 columns of 100 grid projection areas 14 with the length of 10cm and the length of 10cm are formed on the bottom surface of the submarine remote-video support 2, submarine benthonic organism video images of the grid projection areas 14 are shot through the submarine remote-video camera 6, the submarine remote-video images are transmitted to the video information remote-receiving PC 3 to be analyzed, and in the analysis process, investigators observe, identify, measure and record the name, the number, the body length, the body width, the inter-species distribution pattern and other parameters of submarine large benthonic organisms in each grid projection area 14.
When the underwater remote video camera 6 is used for surveying the large benthos in the marine ranching, the underwater remote video camera 6 shoots and obtains a submarine benthos distribution image of 1.0m × 1.0m survey sample, and the survey sample of 1.0m × 1.0m is divided into 100 grid projection areas 14 with 10 rows and 10 columns and 10cm × 10cm in total by grid lines. The sample gridding benthos investigation image is convenient for measuring body indexes such as the density, population scale, individual body length and body width of large benthos on the sea floor of the marine ranching, and ecological parameters such as interspecies distribution pattern.
Meanwhile, the underwater remote video camera 6 and the annular lamp tube 11 are arranged in the organic glass sealing cover 8, the organic glass sealing cover 8 and the transparent glass lens cover 12 are sealed and glued and are arranged in the stainless steel shell 7, and the lens of the underwater remote video camera 6 is arranged in the center of the annular lamp tube 11 and is tightly attached to the transparent glass lens cover 12. The underwater remote video camera 6 and the annular lamp tube 11 are arranged in the sealed organic glass sealing cover 8, the stainless steel shell 7 is wrapped outside, the underwater remote video camera 6 and the annular lamp tube 11 can be prevented from being soaked by seawater, the underwater remote video camera 6 and the annular lamp tube 11 can be protected by the stainless steel shell 7 to prevent accidental collision, and the service life of the underwater remote video camera 6 and the service life of the annular lamp tube 11 are guaranteed.
Preferably, the underwater remote video camera 6 and the annular lamp tube 11 are arranged on the same plane, and the light rays are directly emitted, so that the investigation effect can be prevented from being influenced by shadows. The distance between the underwater remote video camera 6 and the bottom surface of the underwater remote video facility support 2 is fixed, so that the size and specification of benthos can be conveniently measured and calculated through projection. The underwater remote video facility support 2 is detachably connected with the underwater remote video facility 1, so that the underwater remote video facility support is convenient to transport, and when the underwater remote video facility support is used, the underwater remote video facility support can be used by installing the underwater remote video facility 1 on the underwater remote video facility support 2.
The underwater remote video facility cable 5 comprises an underwater remote video power line, an annular lamp tube power line, an underwater remote video information transmission line and a steel cable which is connected with an underwater remote video camera 6, wherein the underwater remote video facility cable 5 is sleeved with a waterproof plastic sleeve, and a depth scale is carved on the outer edge of the waterproof plastic sleeve. When the large benthos survey equipment in the marine ranch sinks, the sinking depth of the equipment and the water depth of a sinking area can be measured through a depth scale, and when the large benthos survey equipment sinks to the survey area or before the large benthos survey equipment is pulled up from the survey area, one end of an underwater remote video facility cable 5 can be connected with an underwater remote video facility 1, the other end of the underwater remote video facility cable is fixed on a winch, and the underwater remote video facility cable is wound and unwound by the rotation of the winch, so that the underwater remote video image transmission can be facilitated, and the effect of driving the underwater remote video facility 1 and an underwater remote video facility support 2 to ascend and descend can be realized through the underwater remote video facility cable 5.
As a first embodiment of the marine ranch large-scale benthos remote investigation equipment of the present invention, the mobile terminal 4 includes a mobile server and a display screen, and can dynamically display and store the submarine video information shot by the underwater remote video camera 6.
As a second embodiment of the marine ranch large-scale benthos remote investigation equipment of the present invention, the video information remote receiving PC 3 is a desktop computer, is connected to the mobile terminal 4 through microwaves, and is configured to store the submarine observation video data shot by the underwater remote video camera 6, and to install video data processing software and image processing software to analyze and process the submarine video data and images collected by the underwater remote video camera.
The invention also provides a remote investigation method for the large benthos in the marine ranching, which comprises the following steps:
carrying large-scale benthos remote survey equipment of a marine ranching to a first survey point on a ship, and installing an underwater remote video facility 1 and an underwater remote video facility support 2;
starting an underwater remote video camera 6 and an annular lamp tube 11 of the underwater remote video facility 1;
rotating the winch to sink the underwater remote video facility 1 and the underwater remote video facility support 2, and observing the underwater remote video image on the mobile terminal 4 until the underwater remote video facility support 2 sinks and falls on the seabed;
keeping the underwater remote video facility 1 and the underwater remote video facility support 2 still at the sinking point for shooting for 10 minutes, and swinging the winch to winch the underwater remote video facility 1 and the underwater remote video facility support 2 to finish the data acquisition of the marine benthos survey sample of the first survey point. Carrying the marine ranching large-scale benthos remote survey equipment to a second survey point on the ship, and collecting the marine ranching large-scale benthos survey sample data of the second survey point according to the method;
the underwater remote video image of each survey point is analyzed by the video information remote receiving PC 3, the video image of each survey sample point is divided into 10 grids of 10cm and 10cm, the existence condition of the large benthonic animals in each grid is observed, the types and survival quantity of the large benthonic organisms are identified according to the activity condition, the names, the quantity, the body length and the body width of the large benthonic organisms in each grid are measured and recorded, the types, the quantity and the individual density of the large benthonic animals in the survey sample are counted, the body length, the body width and other parameters of each individual are counted, the biomass of the large benthonic animals in the survey sample is measured and calculated, and the distribution pattern of the large benthonic animals on the seabed and the dependency relationship among the species are analyzed.
All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. The remote survey equipment for the large benthos in the marine ranching comprises an underwater remote video facility and an underwater remote video facility support, and is characterized in that the underwater remote video facility is fixed on the underwater remote video facility support;
the underwater remote video facility comprises an underwater remote video camera, an annular lamp tube, an organic glass sealing cover, a transparent glass lens cover and a stainless steel shell;
the underwater remote video camera and the annular lamp tube are arranged in the organic glass sealing cover, a transparent glass lens cover is arranged on the bottom surface of the organic glass sealing cover and is in sealing connection with the organic glass sealing cover, the organic glass sealing cover is fixed in the stainless steel shell, and only one surface of the transparent glass lens cover is kept transparent; the underwater remote video camera and the annular lamp tube are tightly attached to the transparent glass lens cover;
the underwater remote video facility support is of a hollow hopper-shaped structure, and the inner diameter of the underwater remote video facility support is gradually increased from top to bottom; the top surface of the underwater remote video facility support is fixedly connected with the transparent glass lens cover; the transparent glass lens cover surface is carved with a plurality of grid lines to form a plurality of irradiation grid areas which are arranged in an array way; the plurality of irradiation grid areas form a plurality of grid projection areas on the bottom surface of the underwater remote video facility support under the irradiation of the annular lamp tube;
the marine ranching large-scale benthos remote investigation equipment further comprises a mobile terminal and a video information remote receiving PC, and the underwater remote video facility is connected with the mobile terminal and the video information remote receiving PC through an underwater remote video facility cable;
and the large benthos distribution video information data of the marine ranching in the grid projection area acquired by the underwater remote video camera are sequentially transmitted to the mobile terminal and the video information remote receiving PC.
2. The large benthos remote survey equipment in marine ranching according to claim 1, wherein the underwater remote video facility support is a tetrahedral hopper type stainless steel body, the four sides of the underwater remote video facility support are stepped external expansion inclined trapezoidal surfaces, each stepped external expansion inclined trapezoidal surface is formed by welding a plurality of stainless steel plate strips, the upper stainless steel plate strip and the lower stainless steel plate strip are overlapped with each other in the horizontal direction, a space exists in the vertical direction, and the upper stainless steel plate strip and the lower stainless steel plate strip are welded through stainless steel welding nails.
3. The marine ranch large benthos remote survey equipment according to claim 1 or 2, wherein the bottom surface of the transparent glass lens cover is a square surface with a side length of 10 cm; the square surface of the transparent glass lens cover is divided into 100 irradiation grid areas of 1cm by 1cm in total of 10 rows by 10 columns; and 100 grid lines of 1cm by 1cm in total of 10 rows by 10 columns on the transparent glass lens cover can form 100 grid projection areas of 10cm by 10 columns in total of 10 rows by 10 columns on the bottom surface of the underwater remote video facility support under the irradiation of the annular lamp.
4. The marine ranch large benthos remote survey equipment according to claim 3, wherein the height of the underwater remote video facility support is 100cm, the top surface and the bottom surface are both square, the side length of the square of the top surface is 10cm, and the side length of the square of the bottom surface is 100 cm; the four side surfaces are inclined trapezoids with an upper bottom of 10cm and a lower bottom of 100 cm; the inclined plane trapezoids on the four side faces are formed by 10 stainless steel laths with the width of 15cm, the length of the inclined plane trapezoids is sequentially increased from 10cm to 100cm, the stainless steel laths with the length tolerance of 10cm are transversely welded, the width of the upper layer stainless steel lath and the lower layer stainless steel lath which are overlapped in the horizontal direction is 2.5cm, the upper layer stainless steel lath and the lower layer stainless steel lath are welded through two welding nails, the upper layer stainless steel lath and the lower layer stainless steel lath are outwards expanded layer by layer from top to bottom, and the interval between the upper layer stainless steel lath and the lower layer stainless.
5. The remote survey equipment for the large benthos in the marine ranch as claimed in claim 1, wherein the underwater remote video facility cable line comprises an underwater remote video power line, an annular lamp tube power line, an underwater remote video information transmission line and a steel cable connected with the underwater remote video facility, the underwater remote video facility cable line is sleeved with a waterproof plastic sleeve, and a depth scale is carved on the outer edge of the waterproof plastic sleeve.
6. The marine ranch large benthic organism remote surveying device according to claim 1, wherein the underwater remote video camera and the annular light tube are disposed on the same plane, and the underwater remote video camera is disposed at the center of the annular light tube.
7. The marine ranch large benthic organism remote survey apparatus according to claim 1 wherein the underwater remote video facility support and the underwater remote video facility are removably connected.
8. The marine ranch large benthic organism remote survey apparatus according to claim 1, wherein the mobile terminal comprises a mobile server and a display screen.
9. The marine ranch large benthic organism remote surveying device according to claim 1, wherein said video information remote receiving PC is a desktop computer connected to said mobile terminal by microwave.
10. A remote surveying method of large benthos of marine ranch, characterized in that the method of remote surveying of large benthos of marine ranch as claimed in any one of claims 1-9 is used, comprising the steps of:
carrying large-scale benthos remote survey equipment of the marine ranching to a first survey point on the ship, and installing an underwater remote video facility and an underwater remote video facility support;
starting an underwater remote video camera and an annular lamp tube of an underwater remote video facility;
rotating the winch to sink the underwater remote video facility and the underwater remote video facility support, and observing the underwater remote video image on the mobile terminal until the underwater remote video facility support sinks and falls on the seabed;
keeping the underwater remote video facility and the underwater remote video facility support still at the sinking point for shooting for 10 minutes, and shaking the winch to winch the underwater remote video facility and the underwater remote video facility support to finish the data acquisition of the large benthos survey sample of the marine ranch at the first survey point; carrying the marine ranching large-scale benthos remote survey equipment to a second survey point on the ship, and collecting the marine ranching large-scale benthos survey sample data of the second survey point according to the method;
the underwater remote video image of each survey sample point is analyzed through a video information remote receiving PC, the video image of each survey sample point is divided into grid projection areas, the existence condition of the large benthonic animals in each grid projection area is observed, the types and the survival quantity of the large benthonic animals are identified according to activity conditions, the names, the quantity, the body length and the body width of the large benthonic animals in each grid projection area are measured and recorded, the names, the density and the body length of the large benthonic animals in the survey sample points, the body width and other parameters of each individual are counted, the biomass of the large benthonic animals in the survey sample points is measured and calculated, and the distribution pattern of the large benthonic animals on the sea bottom and the species dependence relationship are analyzed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655056A (en) * | 2021-08-20 | 2021-11-16 | 重庆交通大学 | Investigation and statistics method for river benthonic animals |
| CN114689031A (en) * | 2022-03-07 | 2022-07-01 | 中国科学院南海海洋研究所 | Artificial fish reef on-site surveying equipment and surveying method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003111533A (en) * | 2001-10-02 | 2003-04-15 | Mitsubishi Heavy Ind Ltd | Method and facilities for oceanographic investigation |
| CN103134479A (en) * | 2013-02-19 | 2013-06-05 | 中国水产科学研究院南海水产研究所 | Marine benthos on-site automatic shooting and measuring device |
| CN203120059U (en) * | 2013-03-26 | 2013-08-07 | 大连海洋岛水产集团股份有限公司 | Deep-sea organism size camera device |
| CN105974863A (en) * | 2016-04-29 | 2016-09-28 | 中国海洋大学 | Ocean pasture platform-based microwave observation system |
| CN107532899A (en) * | 2015-03-11 | 2018-01-02 | 欧申维森环境研究有限公司 | Vision data collector in water |
| CN109883464A (en) * | 2019-01-08 | 2019-06-14 | 中国海洋大学 | Deep-sea jack up tripod marine boundary layer observation system |
-
2020
- 2020-10-23 CN CN202011146474.9A patent/CN112314477B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003111533A (en) * | 2001-10-02 | 2003-04-15 | Mitsubishi Heavy Ind Ltd | Method and facilities for oceanographic investigation |
| CN103134479A (en) * | 2013-02-19 | 2013-06-05 | 中国水产科学研究院南海水产研究所 | Marine benthos on-site automatic shooting and measuring device |
| CN203120059U (en) * | 2013-03-26 | 2013-08-07 | 大连海洋岛水产集团股份有限公司 | Deep-sea organism size camera device |
| CN107532899A (en) * | 2015-03-11 | 2018-01-02 | 欧申维森环境研究有限公司 | Vision data collector in water |
| CN105974863A (en) * | 2016-04-29 | 2016-09-28 | 中国海洋大学 | Ocean pasture platform-based microwave observation system |
| CN109883464A (en) * | 2019-01-08 | 2019-06-14 | 中国海洋大学 | Deep-sea jack up tripod marine boundary layer observation system |
Non-Patent Citations (1)
| Title |
|---|
| 王振宇等: ""利用水下摄影测量技术测量鱼类体长的可行性研究"", 《大连海洋大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655056A (en) * | 2021-08-20 | 2021-11-16 | 重庆交通大学 | Investigation and statistics method for river benthonic animals |
| CN113655056B (en) * | 2021-08-20 | 2024-05-03 | 重庆交通大学 | River benthonic animal investigation and statistics method |
| CN114689031A (en) * | 2022-03-07 | 2022-07-01 | 中国科学院南海海洋研究所 | Artificial fish reef on-site surveying equipment and surveying method |
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|---|---|
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