A Fish Egg Movement Simulation and Visual Monitoring System

Abstract

The invention relates to a fish egg movement simulation and visualization monitoring system. The system comprises a control and monitoring system, a 3D riverbed simulation system, a relative ratio simulation system, a turbulent simulation system and a visualization monitoring system, wherein the 3D riverbed simulation system is connected to the control and monitoring system; the relative ratio simulation system is connected to the control and monitoring system; the turbulent simulation system is connected to the control and monitoring system; and the visualization monitoring system is connected to the control and monitoring system. The fish egg movement simulation and visualization monitoring system has the following advantages that 1, a riverbed landform can be shaped and the terrain environment of fish eggs motion under a natural condition is simulated; 2, the turbulent simulation system effectively simulates fish egg movement characteristics under high-intensity turbulence effect; 3, the relative ratio simulation system can accurately simulate the relative ratio of specific fish eggs in water; and 4, the visualization monitoring system which integrates a slip backlight system, ahigh-speed motion capture system and a flow field monitoring system into one body can effectively collect the flow field data and motion track data of fish egg movement.

Description

technical field [0001] The invention relates to a fish egg movement simulation and visualization monitoring system, which belongs to the field of ecological hydraulic experiments, and is especially suitable for research on the hydraulic characteristics of fish egg movement, research on the impact of reservoir scheduling on fish, early fish resource estimation research and other fields. Background technique [0002] Fish eggs and larvae that do not have active swimming ability move with the current in the water body under the combined effects of their own gravity, buoyancy, inertial force, water flow resistance, and water flow turbulence. The movement characteristics and movement rules of fish eggs in natural rivers will significantly affect the transfer, hatching and resource replenishment of fish eggs. Therefore, knowing and understanding the characteristics and laws of fish egg movement is very important for fish resource protection, spawning ground restoration, and ecolog...

AI Technical Summary

Problems solved by technology

[0004] 1. It can only study the movement characteristics of fish eggs under the action of a single factor of flow velocity, but cannot conduct research on the movement characteristics of fish eggs under the interaction of flow velocity and complex riverbed topography

[0005] 2. In nature, the suspension movement of fish eggs is sometimes caused by high-intensity turbulence rather than the average flow of water flow. Traditional test tanks do not have the ability to simulate the movement of fish eggs in this special water flow environment.

[0006] 3. The proportion of fish eggs is close to that of water, but slightly heavier than water. The relative proportion of fish eggs and water determines the movement characteristics of fish eggs. When real fish eggs are difficult to obtain or the quantity is extremely limited (especially rare and protected fish, such as Chinese Sturgeon eggs), it is necessary to use model fish egg materials for fish egg movement tests, but the relative specific gravity of model fish egg materials is difficult to accurately control, and the relative specific gravity of different fish eggs is different, so it is time-consuming to order model fish egg materials with specific specific gravity It is labor-intensive and expensive, and the existing test conditions do not have devices and systems for simulating the relative specific gravity of fish eggs

[0007] 4. The movement of fish eggs is a group movement of a large number of particles, and most of the real fish eggs are transparent or translucent spherical. Even if dyed, it cannot achieve a strong contrast with the background curtain. The conventional surface light source and background curtain layout are not enough To meet the needs of fish egg motion video collection, resulting in problems such as blurred fish egg particles in each frame of the collected image, inaccurate fish egg track recognition, and the existing video acquisition system, image distortion correction, size calibration and other complex operations

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