80 results about "Fish migration" patented technology

The invention discloses a fishway inlet flow velocity adjusting system and method based on fish induction flow velocity, and relates to the technical field of data processing. Firstly, environment and fish information comprehensive data of a fishway subordinate area are collected and analyzed, then target flow velocity adjustment parameters of the fishway subordinate area are obtained through matching, first fishway inlet flow velocity adjustment is carried out, a fish migration rule can be better understood, and therefore a more accurate flow velocity adjustment strategy is achieved; then analyzing the fishway operation parameters of the fishway membership area after the first adjustment and performing the second adjustment, continuously optimizing the flow velocity adjustment parameters, improving the fish luring effect of the fishway, and finally collecting the environment and fish information comprehensive data of the fishway membership area after the second adjustment and the fishway operation parameters of the fishway membership area so as to improve the fish luring effect of the fishway. The environment change can be quickly responded, the fish safety passing rate is improved, and therefore the fish passing effect of the fishway affiliated area is improved.

The invention relates to the field of hydraulic engineering facilities, in particular to a fishway (1), a sluice and a fishway arrangement method.The fishway comprises a plurality of turn-back sections (11) which are connected in sequence and at least partially arranged on a ramp section of a stilling pool (3) at the downstream of the sluice, and the gradient of each turn-back section is smaller than that of the ramp section of the stilling pool; the bottom end of the fish migration channel is provided with a fishway inlet (13), and the top end of the fish migration channel is provided with a fishway outlet (14) communicated with the lock chamber of the water gate. And the fishes at the downstream are attracted by the water flow which flows out of the fishway and is suitable for migration, so that the fishes enter the fishway and upstream to enter the lock chamber at the upstream of the stilling pool. Due to the fact that the fishway extends into the gate chamber of the water gate in a turning-back mode, the height difference of the stilling pool is relieved in a segmented climbing mode, the water flow speed in the fishway is lower, and therefore the fishway is suitable for fish migration, and fishes can pass through the stilling pool and the water gate through the fishway.

The invention discloses a plane and vertical combination-based Tesla valve tidal river network hydrodynamic reconstruction method, which comprises the following steps of: 1, designing a main seawater upstream channel in a tidal river network into a Tesla valve structural form on the form of a river plane; secondly, in the vertical direction of the river channel, a Tesla valve-like structure is adopted, and a directional flow guide structure is arranged at the position close to a riverbed, so that when the water flow flows towards the ocean, the flow line is smooth, and when the water flow traces upwards from the ocean to the river channel, the water flow resistance is increased; structures similar to Tesla valves are installed at the inflow and upstream positions between the ocean and the river channel, movable assemblies such as gates are not used, salty tide upstream is effectively inhibited, meanwhile, water connectivity is not blocked, the influence on fish migration and ecosystem connectivity is small, and the method is suitable for large-scale popularization and application. High-concentration salt-containing water at the bottom is more effectively blocked, and one-way flow of water and pollutant discharge in a riverway of a tidal river network area are promoted.

The invention provides a fishery resource dynamic monitoring method and system based on underwater detection equipment, relates to the field of dynamic monitoring technology analysis, and realizes fine management of water area monitoring by collecting fish school density data in real time, constructing a fish school density matrix and combining grid unit division and geographical hash coding. The gradient value of the adjacent grid units is calculated based on the density matrix, the gradient matrix is generated, the fish school density abrupt change area can be accurately recognized, the abnormal area is marked, then the sonar sampling frequency of the underwater detection equipment is dynamically adjusted, and the monitoring precision of the abnormal area is improved. Compared with the prior art, the method has the advantages that the monitoring precision, the anomaly detection response capability and the resource utilization efficiency are remarkably optimized, and the adaptability and the prediction capability of a monitoring system are improved particularly in the aspects of fish swarm migration trend prediction and grid division dynamic adjustment.

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

The fishway inlet device comprises a fixed fishway, the inlet end of the fixed fishway is rotationally connected with a transition section fishway through a rotating shaft, a telescopic control device is installed on the upper portion of the other side of the transition section fishway, and the output end of the telescopic control device is connected with a telescopic mechanism. The other end of the telescopic mechanism is in sliding limiting fit with the mounting box, the lower portion of the telescopic mechanism is connected with a telescopic flexible fishway, one end of the flexible fishway is connected with the transition section fishway, the other end of the flexible fishway is connected with the mounting box, and the other end of the mounting box is connected with the inlet end fishway. According to the device, the length of the fishway can be adjusted according to the water level so that the fishway inlet can adapt to the water level, the fish luring effect can be enhanced through the fish luring device, and the fish migration situation can be monitored in real time.

The invention discloses a partition plate type fishway built on a floodplain, and relates to the technical field of fishways, the partition plate type fishway comprises a fishway and a movable cover plate, the fishway is a partition plate vertical seam type fishway, the movable cover plate is arranged at an opening in the upper end of the fishway, and the movable cover plate is detachably connected with the fishway. According to the partition plate type fishway built on the floodplain, fish migration can be achieved for a floodplain type river channel, and silt can be prevented from blocking the fishway when river water overflows the floodplain.

The utility model discloses a novel multifunctional fishway which comprises a modularized water guide channel installed in a water channel foundation, the water guide channel is in a groove shape, a plurality of stand column installation holes are evenly formed in the bottom of the water guide channel, a plurality of vertical clamping grooves are evenly formed in the side walls of the water guide channel, and a plurality of water retaining modules are installed on the portions, close to the two side walls of the water guide channel, of a bottom plate respectively. A straight area between the water retaining modules on the two sides is a migration channel; the water retaining modules and the side walls are arranged in an inclined mode, the inclined direction faces the water flow direction, and when water shunted through the water retaining modules converges into the migration channel again, the velocity vector direction of water flowing back from the two sides is opposite to the flow velocity vector direction in the migration channel. The water flow velocity in the fishway can be reduced, fishes can be induced to directly migrate through the device, the migration efficiency is improved, meanwhile, the modular design can quickly detach the water baffles in the non-fish migration period, and the vertical column units with different lengths are installed to form the trash blocking device to block water flow trash with different depths so as to achieve the purpose of water purification.

The invention discloses an intelligent riverway retaining dam system based on ecological function regulation and control in the technical field of water conservancy ecology. The intelligent riverway retaining dam system comprises a retaining dam body and a server. The side, close to the shoreside, of the retaining dam body is provided with multiple stages of water pools distributed in a stepped mode, every two adjacent stages of water pools are communicated through an inclined water channel, and the server comprises an acquisition module, a data processing module and an execution module; the acquisition module is used for acquiring feature images of migrated fishes and water flow velocity in a water channel; the data processing module is used for analyzing the fish feature image through a trained deep learning algorithm, so that the water flow speed is matched with the water flow speed of corresponding fish migration; and the execution module is used for opening, closing and adjusting a gate of the fishway according to the instruction of the data processing module. According to the scheme, the problems that the flow speed of water flow of an existing fishway is unstable, and fish migration is affected are solved.

The invention proposes a fish migration trajectory tracking method, and relates to the technical field of fish trajectory tracking, and the method comprises the steps: S1, constructing a deep learning model which comprises a multi-branch feature extraction network and a trajectory segment encoder; s2, training a deep learning model by utilizing the fish video data set, and optimizing model parameters by adopting a comparative learning strategy and regularization constraint to obtain a fish multi-target tracking model; s3, processing a to-be-analyzed fish video by using the fish multi-target tracking model, and performing trajectory tracking of fish individuals through a multi-layer matching strategy to obtain a complete fish motion trajectory; and S4, calculating the main direction angle of the fish movement track through principal component analysis, and judging the migration direction according to the included angle between the main direction angle and the river direction angle so as to track the migration of the fish. According to the method, the technical problems that an existing fish trajectory tracking method is not accurate enough in feature representation in a complex underwater environment, a time sequence association strategy is incomplete, and trajectory continuity and consistency in long-time tracking are insufficient can be solved.

The present invention provides a fish migration device (10) designed for use in watercourses where obstacles such as power stations, dams, or similar structures hinder the free movement of fish The device (10) comprises pipes (14), an inlet valve (12), an outlet valve (13), a plurality of back flow chambers (11), one or more rest chambers (20), and multiple back flow and eddy areas (21). The device (10) forms a closed system that allows water to flow from an upper part to a lower part, effectively reducing both the speed and volume of water to levels that facilitate comfortable fish passage, thereby enables fish migration either upstream or downstream. Whereas the one or more rest chambers (20) and the back flow and eddy areas (21) allow fish to rest and then continue moving up or down in the device (10).

The application discloses a non-constant flow water-saving type flipper step type fishway and a fish migration method. A plurality of flippers are arranged in the fishway body along the length direction of the fishway body. Each flipper transversely divides the fishway body, thereby forming a plurality of migration pools surrounded by two adjacent flippers. The elevation of the upper end of each flipper gradually decreases along the water flow direction. All the flippers can connect or disconnect the adjacent migration pools. The first flipper, the second flipper, the third flipper and the like are opened and closed in turn according to the set rhythm until the uppermost flipper. The fish enters the upper migration pool in the opening process of the flipper and migrates step by step, thereby realizing the fish flip. The application basically has no requirement on the swimming ability of the fish. The drop water formed in the opening process of the flipper has an attracting effect on the fish, is very beneficial to the fish migration, and the water flow for realizing the migration is smaller than that of the existing fishway.

The present application belongs to the technical field of hydraulic engineering and environmental protection engineering facilities, and particularly relates to an ecological flow releasing facility with a fishway and a construction method thereof. The present application is directed to the reconstruction and expansion of hydraulic engineering with ecological requirements. The fishway and the ecological flow releasing system adopt a short tunnel around dam scheme, which has little influence on other buildings of the hub. Rock plug is used for water retaining, and the installation of the water retaining gate is completed before the flood season, thereby avoiding the risk of flood control during the construction period due to the increase of the retaining and releasing water buildings caused by the reconstruction and expansion. The overall layout of the fishway engineering and the ecological flow releasing facility is considered, the tunnel section adopts the layout of the fishway on the top and the ecological releasing pipe on the bottom, the tunnel section type is beneficial to the stability of the surrounding rock, the construction difficulty is small, and the excavation and support amount is small. The tunnel section adopts a sunlight fiber optic introduction system for lighting, which can make the fishway tunnel section more close to the natural conditions, and the adverse effects of the fishway tunnel section engineering on fish migration are minimized.

The utility model discloses a fish releasing swing valve capable of being rapidly opened and closed. The fish releasing swing valve comprises a valve body, a valve plate and an oil cylinder. According to the utility model, the split type valve plate is matched with the scissor type hinged linkage mechanism, and the opening and closing stroke of the valve plate is obviously shortened by utilizing the synchronous reverse swinging of the symmetrical swing arms under the driving of the oil cylinder, so that the quick opening and closing are realized; the problem of response lag caused by long-stroke movement of a single valve plate of a traditional swing valve is solved, and the swing valve is particularly suitable for fish migration channel valve scenes with high requirements for opening and closing efficiency.

The invention provides a fishway and dam integrated device integrating multi-depth entrances and exits and multi-direction water replenishing and fish luring and an operation method, and belongs to the technical field of fishways. The device comprises a gravity dam section, a stepped fishway integrated in the gravity dam section and a water replenishing pipeline pre-buried in a wall body of the gravity dam section; the upstream side and the downstream side of the gravity dam section are provided with multi-elevation entrances and exits and matched gates respectively, a fishway bottom plate and partition plates of the stepped fishway are distributed in a stepped mode, and the water supplementing pipeline is provided with multi-direction water supplementing sprayers around the fishway entrance. According to the operation method, through cooperative opening and closing of multi-depth inlets and outlets, multi-direction and multi-flow-speed fine regulation and control of water supplementing nozzles, stepped fishway energy dissipation and flow aiding and dam water retaining mode switching, fishway and dam structure function integration is achieved. Extra land acquisition and pouring are not needed, the engineering cost and construction difficulty are reduced, the method can adapt to dynamic changes of the water level of the reservoir, migration depth preferences of different fishes are considered, the fish luring and passing efficiency is improved, and the fish passing window period is prolonged.

The invention discloses a lake ecology appropriate water level determination method based on juvenile fish migration and adult fish fattening, and relates to the field of water ecology and water conservancy projects. The method comprises the following steps: acquiring lake basic data; establishing a two-dimensional hydrodynamic model, and simulating a hydrodynamic field in key periods of migration of juvenile fishes and fattening of adult fishes of the target fishes; constructing a habitat model, and calculating a habitat suitability index HSI and a weighted available area WUA; constructing a water level-WUA response curve and performing segmentation fitting; identifying a WUA stable high-value platform through a first-order derivative threshold value, and determining a suitable water level interval; and establishing scheduling mapping between the appropriate water level and the upstream discharged flow. According to the method, water level-habitat quantitative association is realized according to the staging habitat requirements of four major Chinese carps in the Yangtze River, an operable scheduling threshold value is output, the problems that a traditional method is not staging, the index is single and the method is disjointed with engineering are solved, and the method is suitable for ecological scheduling and management of riverway-communicated lakes.

The invention relates to the technical field of water conservancy projects, and discloses a canal hub ship lock fish passing facility which comprises a ship lock body structure, a mounting base is fixedly connected to the downstream side of the ship lock body structure, and a fish passing mechanism is integrated on the outer wall of the mounting base in a welding mode. The fish passing mechanism comprises a rotating vortex induction channel and an air bag suspension type fish passing platform, and an energy conversion fishway is arranged on the inner wall of the ship lock body structure. And the turbulent flow characteristics of the natural stream can be accurately simulated through the rotating vortex induction channel. The water flow sensor monitors the flow speed in real time, the edge calculation terminal accurately controls the rotating speed and the inclination angle of the rotatable guide vanes according to a fish flow taxis model and algorithm, vortex with the specific diameter and flow speed distribution is formed, fishes are attracted to enter a channel in the tangential direction, and the success rate that the fishes are guided to pass through a ship lock downstream inlet is increased; the problem that the ship lock hinders fish migration is effectively solved.

The present invention relates to a method for deploying fish-driving sound sources to maintain fish migration pathways within reservoirs. First, hydrodynamic simulations are used to determine the interruption areas and required channel widths of the migration pathways. Then, the required sound intensity of the fish-driving sound sources is determined based on the specific effects of sound on fish. Finally, the number and location of the sound sources are determined by combining acoustic methods and the physiological needs of fish. This method can maintain fish migration pathways within reservoirs and promote successful fish migration, which is of great significance to the utilization of reservoir water resources and the protection of river ecosystems.

The present invention discloses a method for hydrodynamic reconstruction of a tidal river network based on a Tesla valve in a planar and vertical combination. The method comprises the following steps: first, in the planar form of the river channel, the main upstream seawater channel in the tidal river network is designed into a structural form of a Tesla valve; second, in the vertical direction of the river channel, a Tesla valve-like structure is also adopted, and a directional guide structure is set near the riverbed, so that the streamline is smooth when the water flows toward the ocean, and the water flow resistance is increased when the water flows upstream from the ocean to the river channel; the present invention achieves effective suppression of the upstream salt tide by installing a structure similar to a Tesla valve at the inflow and upstream between the ocean and the river channel without using movable components such as gates, while not cutting off the connectivity of the water body, having little impact on fish migration and the connectivity of the ecosystem, and more effectively blocking the high-concentration salt water body at the bottom, thereby promoting the unidirectional flow of water and the discharge of pollutants in the river channel of the tidal river network area.

The invention discloses a cobitidae fish migration channel simulating natural hydraulic conditions and a design method, and relates to the technical field of fish migration channels, the cobitidae fish migration channel simulating the natural hydraulic conditions comprises a river bank, a water channel is arranged on the river bank, and a dam is transversely arranged in the middle of the water channel. A traditional fishway is mainly designed for economic fishes with high swimming capacity, and a substantive ecological barrier is formed for benthic species with weak swimming capacity such as cobidae fishes. According to the invention, through intelligent linkage of the liftable rockfill dam and the self-adaptive inclined plate, a continuous adjustable hydraulic condition from an almost barrier-free gentle slope to a controllable challenging step is created. Especially in a dry season / juvenile fish period mode, the fishway is converted into a continuous smooth slope, so that juvenile fishes and weak individuals can easily move upwards in a creeping mode close to a natural state, and the migration blocking problem is fundamentally solved.

The utility model discloses integrated fish migration channel monitoring equipment which comprises a channel shell, a flow velocity detector is arranged at the inlet end of the channel shell, an elastic expansion shell is fixed to the inner wall of the channel shell, a channel is conical after the elastic expansion shell expands, and a mounting plate and a lifting support are arranged at the top of the flow velocity detector. A capturing box and a moving mechanism are arranged at the outlet end of the channel shell, a light supplementing lamp belt and an outlet collecting piece are arranged at the position close to the outlet end of the channel shell, the light supplementing lamp belt is located on the bottom face in the channel shell, and the outlet collecting piece is located on the top face in the channel shell. The flow velocity detector at the inlet end can detect the velocity of water flowing into the channel shell, when the flow velocity exceeds a threshold value, the inflator pump is automatically triggered to enable the elastic expansion shell to form a conical contraction structure, the elastic expansion shell is matched to effectively slow down the flow velocity to a suitable range, and definition and integrity of image acquisition are ensured.

The application relates to the technical field of fish protection, in particular to a biomimetic fishway multi-parameter optimization method considering fishway environment and water quality requirements, which comprises the following steps: obtaining the dissolved oxygen concentration in the fishway water body. According to the difference between the dissolved oxygen concentration and the preset reference oxygen demand, the guide water temperature for guiding fish to bypass the high flow speed area is determined. Based on a global optimization model of graph theory, the positions of multiple to-be-guided fish group clusters and the positions of multiple adjustable guide nodes are processed to determine the optimal matching relationship between the to-be-guided fish group clusters and the adjustable guide nodes. According to the optimal matching relationship, the corresponding adjustable guide node is controlled to output the guide fluid with the guide water temperature. The application provides a method for coordinating the conflict between the oxygenation operation and the fish migration.

The invention relates to the technical field of fish migration dam-passing facilities, in particular to a double-channel type ascending fishway which comprises a vertically-arranged supporting column, and a fishway body is fixedly connected to the outer side of the supporting column in a spiral surrounding mode. The top end of the fishway is connected with a buffer pool which is communicated with an upstream river channel, and the bottom end of the fishway is communicated with a downstream river channel; a partition plate is arranged on the inner side of the fishway in the length direction and divides the fishway into an inner part and an outer part, the inner side is a high-speed fishway, and the outer side is a low-speed fishway. A plurality of fish passing openings are formed in the partition plate at equal intervals, water guide plates extending into the high-speed fishway are arranged at the fish passing openings, and a plurality of water baffles are arranged in the low-speed fishway in a staggered mode; the double-channel type fishway is arranged according to the water flow velocity difference between the inner side and the outer side of the spiral fishway, the water flow velocities in the two fishways are different, and therefore the fishway can be suitable for more complex river ecology, and a more suitable upward dam passing channel is provided for various fish schools with different habits.

The invention discloses a fishway structure and a water level control method and system. The fishway structure is applied to fish migration on the downstream side of the dam body, a first bearing part and a second bearing part are arranged on the side, close to a downstream water area, of the dam body, the first bearing part is arranged above the second bearing part, and the first bearing part and the second bearing part form a step structure; the fishway structure comprises a fishway body and a fishway auxiliary assembly, the fishway body forms a fishway opening at the first bearing part, the fishway auxiliary assembly is arranged on the second bearing part and is provided with a water tank close to the first bearing part, the side, close to the downstream water area, of the water tank is provided with a fish inlet, and meanwhile the water tank is configured to store water in the dry season. According to the fishway, the fish inlet is formed in the water tank, the fish is assisted to migrate through the fishway opening, so that the fish can enter the water tank through the fish inlet in the dry season and enter the fishway through the water tank to achieve migration, the whole fishway does not need to be reformed in all directions, the reformation period of the fishway is shortened, and the reformation cost of the fishway is reduced.

The invention discloses a suspended ecological silt-removing fish box, which comprises an anchor, a traction chain, a suspended box body and a protection plate. The suspended box body is connected to the top of the anchor through the traction chain, and the protection plate is arranged outside the suspended box body. A fish migration channel and an inner recessed cavity are arranged between the suspended box body and the protection plate. The suspended box body is driven by the thrust on the upper layer of the water area to agitate the silt at the bottom of the water area, so that the water flow carries away part of the silt, and the native cave-dwelling fish is protected. The structure is simple and firm.

The invention relates to the technical field of fish migration in water conservancy and hydropower engineering, in particular to a framed bent supporting structure for fishway engineering of a hydropower station, which comprises an engineering foundation part for providing a supporting foundation; the fishway part comprises a fishway side wall which is arranged above the engineering foundation part and used for forming a fishway aqueduct, and the fishway aqueduct is used for providing a fishway with the height increased during fish migration; the hydropower station fishway project adopts a framed bent supporting structure, and is suitable for construction of a hydropower station fishway in a mountainous area with wide land acquisition range, large slope excavation volume, high environmental protection requirement and strict ecological red line control; the occupied area of a project and the slope excavation scale are effectively reduced, the water and soil loss phenomenon is relieved, and the ecological environment of a sensitive area can be effectively protected; the scheme of proper slope ratio and circling design is adopted, the elevation of the fishway is increased through the framed bent supporting structure, the continuity and comfort of a fish migration channel are facilitated, and the requirement for fish upstream migration in the high-altitude mountainous area can be met.

The present invention discloses a multi-channel in-situ treatment and on-line circulation system for fishery culture wastewater, which includes a main body unit; the main body unit includes a first modular unit connected to the first fishery culture pond and located upstream, and a second modular unit connected to the second fishery culture pond and located downstream; a fish migration baffle plate that keeps a distance from both the water level line and the bottom is arranged between the first modular unit and the second modular unit, and the side wall of the water outlet end of the first modular unit, the fish migration baffle plate and the side wall of the water inlet end of the second modular unit form a fish migration area; a fixator is arranged above the fish migration baffle plate, the fixator is connected to an adjustable baffle plate, the adjustable baffle plate has three gears, in the first gear, the free end of the adjustable baffle plate is connected to the top end of the side wall of the water outlet end of the first modular unit, in the second gear, the free end of the adjustable baffle plate is connected to the top end of the fish migration baffle plate, and in the third gear, the free end of the adjustable baffle plate is connected to the top end of the side wall of the water inlet end of the second modular unit.

The present invention discloses a method for regulating fish migration channels in a cascade reservoir area, including: S1: conducting an experiment on the interactive influence mechanism of water temperature and flow velocity on fish migration; S2: combining the response of experimental fish upstream behavior and gonad development to different water temperature and flow velocity conditions, using a multiple regression analysis method to determine the quantitative relationship between fish migration quality characterization indicators and water temperature and flow velocity; S3: establishing a fish upstream trajectory prediction model under different water temperature and flow velocity combination conditions; S4: constructing and verifying a water temperature-hydrodynamic model of a target river section; S5: coupling the fish upstream trajectory prediction model with the water temperature-hydrodynamic model; S6: establishing a statistical relationship between fish upstream mode and flow change; S7: determining an ecological scheduling scheme for cascade power stations to ensure fish migration. The present invention solves the problem that the slow flow conditions in the cascade reservoir area are not conducive to fish migration and hinder the natural reproduction of fish, and ensures that spawning parent fish can smoothly pass through the slow flow river section in the reservoir area and migrate to the upstream or tributary spawning grounds.

The invention relates to a multi-modal underwater bionic fish monitoring system and method based on acousto-optic magnetic fusion. The system is characterized in that data acquired by a bionic fish device is directly transmitted to an edge calculation processing unit; and preprocessing the data, issuing an instruction and uploading the data to the cloud cooperative control platform. The method comprises the steps that after receiving data, a cloud cooperative control platform judges whether the data is normal or not, if the data is normal, LSTM is directly called to complement time sequence data to generate a three-dimensional ecological thermodynamic diagram, if the data is abnormal, a fish shoal migration mode is associated to generate the three-dimensional ecological thermodynamic diagram, and then a bionic fish operation optimization path is generated through calculation; and finally, an instruction is issued to the bionic fish device. The invention realizes low-influence and high-efficiency water body monitoring.

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a fish dam-passing fish collecting device site selection method, which comprises the following steps: S1, collecting and analyzing construction conditions; s2, investigating fish resources; s3, investigating a fish migration route; s4, selecting an alternative area; s5, investigating the environment of the alternative region; s6, screening alternative areas; according to the method, the alternative areas suitable for construction are gradually screened out according to the migration habit and swimming ability of the target fish school and the actual hydrological data and geographic data of the river channel in sequence, so that the obtained site can ensure the passing efficiency of the target fish, and the operation efficiency of the fish collecting device is improved; and meanwhile, a TOPSIS method is adopted to comprehensively consider conditions such as the construction cost and environmental influence factors of each alternative area, and an optimal construction address which comprehensively considers multiple parties and can meet the fish school passing efficiency, reduce the construction cost and reduce damage and influence on the natural environment is selected from the alternative areas.