Bottom trawl bottom line dragging state camera shooting and collecting device
A collection device and bottom-level technology, which are applied in fishing nets, closed-circuit television systems, fishing, etc., and can solve problems such as fluctuations in photography direction, inability to collect bottom trawl image data, and seabed sediment disturbance.
Pending Publication Date: 2020-11-17
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology
This kind of camera collection device will have the problem of disturbance to the bottom of the seabed, and the shooting direction of the underwater camera will fluctuate during the movement, so it is usually impossible to collect continuous and clear image data of the bottom trawling operation status
Method used
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[0015] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0016] like figure 1 The bottom trawling bottom line camera acquisition device shown in the towing state includes an underwater camera 1 with an underwater lighting source and a mounting bracket 2 . Both sides of the bottom of the mounting bracket 2 are respectively connected with the straight sections on both sides of the bottom outline 3 of the bottom trawl net. The underwater camera 1 is installed on the top of the installa...
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The invention relates to a bottom trawl bottom line dragging state camera shooting and collecting device which comprises an underwater camera and an installation support, the two sides of the bottom of the installation support are connected with the two sides of a bottom line of a bottom trawl respectively, and the underwater camera is installed at the top of the installation support and located above the bottom line. The underwater camera right faces the arc top position of the bottom line in the breadth direction of the bottom trawl, and the camera shooting direction inclines downwards to face the bottom line. According to the invention, continuous and clear image data of the bottom-layer trawl bottom line in a dragging state can be collected, and the influence and action relationship between the trawl bottom line and seabed sediment, the stress behavior of benthos at a trawl opening to the bottom line and the like can be observed clearly, so that trawl designers can make more accurate judgments and the accuracy of trawl design is improved. And a more effective basis is provided for the trawl structure design.
Description
technical field [0001] The invention belongs to the technical field of bottom trawling operation state research and structure improvement, and in particular relates to a bottom trawling bottom frame towing state camera acquisition device. Background technique [0002] Trawl net is a kind of mobile filter fishing gear, relying on the power of fishing boats to tow pouch-shaped fishing gear, and drag marine organisms into the net in the waters it passes through, so as to achieve the purpose of fishing production. Bottom trawling is a net that trawls along the bottom of the coast, and its fishing targets are mainly bottom-dwelling fishery organisms. [0003] During the structural design process of the bottom trawl, if the operating state of the bottom trawl on the seabed, especially the towing state of the bottom frame, can be obtained, it will help the developer to understand the performance of the designed bottom trawl, and provide a basis for the improvement of the trawl stru...
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Login to View More IPC IPC(8): H04N7/18A01K73/02A01K75/00F16M11/04F16M13/02
CPCA01K73/02A01K75/00F16M11/04F16M13/02H04N7/18
Inventor 王磊张勋王鲁民齐广瑞余雯雯刘永利
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI