An intelligent rotary fishway fish repelling device and a method for repelling fish using the device

Abstract

An intelligent rotary fishway fish driving device and a method for driving fish using the fish driving device. The fish driving device includes a traveling mechanism, a fish blocking electric fence, and a fish blocking fence rotating mechanism. The traveling mechanism includes a traveling cart and traveling tracks symmetrically distributed on the top surfaces of the two side walls of the fishway. The starting end of the traveling track is arranged at a position near the maintenance folding gate, and the terminal extends along the fishway to the fish collecting chamber lift well. The fish blocking electric fence is vertically suspended in the fishway through the fish blocking fence rotating mechanism. Before driving the fish, the fish blocking electric fence is parallel to the water flow direction, and fish downstream enter the fishway. When the amount of fish in the fishway reaches the transportation capacity of the fish collecting chamber lift well, the fish blocking electric fence rotates 90° to block the fishway inlet, and the traveling cart drives the fish blocking electric fence to move and drives the fish in the fishway into the fish collecting chamber. The invention realizes automatic fish driving, greatly improves the fish passing efficiency of the fishway, reduces manual intervention and the impact on ecological environment protection, and has high safety.

Description

Technical Field

[0001] The present invention relates to the field of water conservancy and hydropower engineering, and more specifically, to an intelligent rotary fishway fish driving device for a hydropower station fishway and a method for driving fish using the device. Background Art

[0002] In order to meet various requirements such as flood control, irrigation, power generation, shipping, and water supply, it is often necessary to build water conservancy and hydropower engineering buildings on rivers to form reservoirs, raise water levels, and regulate runoff. While the construction of water conservancy and hydropower projects brings great benefits to mankind, it also destroys the biological continuity of rivers, blocks the channels of migratory and semi-migratory fish, and reduces the biodiversity of rivers. In order to protect natural fishery resources and ensure the continuity and diversity of aquatic ecosystems, the main restoration measures currently taken are to build fish passage facilities in hydropower and water conservancy projects, mainly including fishways, fish locks, fish elevators, fish collection ships, etc.

[0003] A fishway is a fish passage building constructed at a dam or natural obstacle for fish migration. The fishway is arranged in the areas with relatively gentle water flow in the non-flood discharge and power generation dam sections on both sides of the water conservancy project. Its function is to guide fish from the downstream of the power station to the upstream, mainly undertaking the role of fish passage, and is an ecological measure to reduce the interference of the dam on the survival and reproduction of fish. A fish elevator is a form of fishway that enables fish to pass through hydraulic structures by a faster method. Most existing fishways are artificial water troughs built in river-blocking buildings, which are difficult to meet the requirements of local fish for water flow velocity and flow pattern. Generally, after fish enter the fishway, they may gather in some areas of the fishway and do not move forward, resulting in the inability of the fish collection box to quickly collect fish for the next transportation work, and the fish passage efficiency is low. If artificial intervention is used to collect fish, potential environmental protection and ecological problems will occur. Summary of the Invention

[0004] The object of the present invention is to overcome the deficiencies of the above background art, and to propose an intelligent rotary fishway fish driving device for driving fish in a hydropower station fishway into a fish collection box and a method for driving fish using the device. The device can realize automatic fish driving, reduce manual intervention and the impact on ecological environment protection.

[0005] The object of the present invention is implemented through the following technical solutions. Specifically, it is an intelligent rotary fishway fish repelling device, which is used for fish repelling in the fish passage facility built in a hydropower station. The fish passage facility includes a fishway and a fish collecting chamber lifting well arranged at the terminal of the fishway. The fish inlet of the fishway is arranged downstream of the hydropower station. An overhaul laminated gate is provided at a position near the fish inlet of the fishway. Its characteristics are as follows: The fish repelling device includes a traveling mechanism, a fish blocking electric grid, and a fish blocking grid rotating mechanism. The traveling mechanism includes a traveling trolley and traveling tracks symmetrically distributed on the top surfaces of the two side walls of the fishway. The starting end of the traveling track is arranged at a position near the overhaul laminated gate, and the terminal extends along the fishway to the fish collecting chamber lifting well. The traveling trolley is placed on the traveling track and moves back and forth on the traveling track. The fish blocking electric grid is vertically suspended in the fishway through the fish blocking grid rotating mechanism and is perpendicular to the fishway during the fish repelling process, dividing the fishway into a fish repelling area near the fish collecting chamber lifting well and a fish inlet area near the overhaul laminated gate. The fish blocking grid rotating mechanism includes a driving mechanism, a rotating mechanism, and a rotating hanging rod. The driving mechanism is installed on the traveling trolley. The upper end of the rotating hanging rod is connected to the driving shaft of the driving mechanism through the rotating mechanism and is driven to rotate by the driving mechanism. The lower end of the rotating hanging rod is connected to the fish blocking electric grid through an elastic connecting member, and balance inclined pull rods are symmetrically arranged on both sides of the connecting part.

[0006] A further technical solution of the present invention: The fish repelling device further includes a control cabinet, a camera arranged in the fish repelling area, and a laser limit device. The laser limit device includes a laser emitter installed on the traveling trolley and a laser positioning plate arranged at the terminal of the traveling track. The camera is directed at the fish repelling area of the fishway. The signal output ends of the camera and the laser limit device are connected to the signal input end of the control cabinet. The signal output end of the control cabinet is connected to the driving mechanism, the driving mechanism of the traveling trolley, and the power-on control end of the fish blocking electric grid.

[0007] A further technical solution of the present invention: The distance between the starting point of the traveling track and the overhaul laminated gate is 5 - 10 m, and the terminal extends to both sides of the fish collecting chamber lifting well. The traveling trolley includes a traveling support and traveling wheels symmetrically arranged at the bottoms of both ends of the traveling support. The driving mechanism is installed on the traveling support through a support frame. The lower end of the rotating hanging rod passes through the center position of the traveling support and the center position of the top of the fish blocking electric grid.

[0008] A preferred technical solution of the present invention: A horizontal connecting rod is provided at the connection end of the rotating hanging rod and the fish blocking electric grid. The horizontal connecting rod is rigidly connected to the rotating hanging rod. The horizontal connecting rod is connected to the fish blocking electric grid through an elastic connecting member. The two balance inclined pull rods are symmetrically arranged on both sides of the horizontal connecting rod, one end of which is slidably connected to the horizontal connecting rod, and the other end is hinged to the fish blocking electric grid. The elastic connecting member is at least two connecting springs.

[0009] Preferred technical solution of the present invention: The rotating mechanism includes a rotating support, an end-face adapting bearing, and a support bearing. The rotating support is installed at the center of the top of the traveling trolley. The upper end of the rotating boom passes through the bracket of the traveling trolley and the rotating support and is connected to the driving rod of the driving mechanism. An end-face adapting bearing and a support bearing are respectively arranged at the upper and lower ends of the contact part between the rotating support and the rotating boom. The rotating boom is rotatably connected to the rotating support through the end-face adapting bearing and the support bearing; the end-face adapting bearing is a double-row spherical self-aligning roller bearing, and the support bearing is a thrust self-aligning roller bearing.

[0010] Preferred technical solution of the present invention: The fish barrier electric grid includes an insulating grid and a galvanized pipe electrode group arranged in the middle of the grid. The transmission line of the galvanized pipe electrode group passes through the rotating boom and is led out from the top end of the rotating boom; the height and width of the fish barrier electric grid match the channel height and width of the fishway. There is a spacing of 10-20 mm between both sides of the fish barrier electric grid and the side walls of the fishway and between the bottom edge and the bottom surface of the fishway.

[0011] Preferred technical solution of the present invention: The driving mechanism is a three-in-one driving motor or an electric push rod. When the driving mechanism is a driving motor, the driving motor is installed on the traveling bracket of the traveling trolley through a support frame. The driving rod is directly connected to the control end of the rotating boom and controls the rotating boom to rotate 90° forward or backward; when the driving mechanism is an electric push rod, the driving rod of the electric push rod is connected to the control end of the rotating boom through a 90° bent rod. The electric push rod is vertically hinged on the support frame and can rotate in a plane. When the electric push rod works, it pushes the 90° bent rod to rotate, driving the rotating boom to rotate 90° forward or backward.

[0012] A method of driving fish using the above intelligent rotary fishway fish driving device provided by the present invention, which is applicable to driving fish from the maintenance stop log gate slot end to the fish collecting chamber lift well in the fishway of a hydropower station, is characterized in that the specific steps are as follows:

[0013] (1) Before the fish in the downstream of the hydropower station enter the fishway, the traveling trolley is placed at one end of the traveling track near the fish inlet, and the fish barrier electric grid is parallel to the fishway. At this time, the fishway is in an open state;

[0014] (2) When the amount of fish in the fishway reaches the transportation volume of the fish collecting chamber lift well, control the fish barrier electric grid to rotate 90° to block the fishway inlet, and drive the traveling trolley to move along the fishway towards the direction of the fish collecting chamber lift well, driving the fish barrier electric grid to drive the fish in the fishway into the fish collecting chamber lift well;

[0015] (3) After the fish barrier electric grid drives the fish in the fishway into the fish collecting chamber lift well, the traveling trolley moves along the fishway towards the direction of the maintenance stop log gate, and before moving or when moving to the starting end, control the fish barrier electric grid to rotate 90° to restore the passage of the fishway.

[0016] The preferred technical solution of the present invention is as follows: the movement of the fish-driving device and the rotation of the fish-blocking electric grid are both controlled by a control cabinet to work automatically, and the amount of fish in the fishway is monitored by image acquisition. When the amount of fish reaches the transportation requirement, the control cabinet controls the fish-blocking electric grid to rotate 90 degrees to block the fishway entrance, and at the same time controls the walking trolley to move along the fishway toward the fish collecting chamber lifting shaft; the moving stroke of the walking trolley is limited by a laser limiting device, and when the walking trolley moves to the positions on both sides of the fish collecting chamber lifting shaft, it stops moving, and controls the walking trolley to move in the opposite direction to the starting end, and at the same time controls the fish-blocking electric grid to rotate 90 degrees again to open the fishway entrance.

[0017] A more preferred technical solution of the present invention is that the fish-blocking electric fence emits electric waves with an influence range of 1.5m to automatically drive away the fish during the fish-driving process.

[0018] The present invention has the following advantages:

[0019] (1) The present invention is provided with a walking mechanism, which can automatically walk in the fishway and drive the fish into the fish collecting chamber through weak electric waves, so that the fish can be quickly collected for the next step of transportation, thereby greatly increasing the fish passing efficiency of the fishway.

[0020] (2) The fish fence of the present invention adopts a galvanized tube electrode group to generate electric waves within a reasonable range to automatically drive away fish, reducing human intervention and the impact on ecological environment protection; the electric fence and the overall structure adopt a high-strength insulating sheathing, which can be touched by people, and the equipment works without interference and radiation to the power grid, and has strong safety.

[0021] (3) The fish-blocking electric fence of the present invention is installed on the support frame of the walking mechanism through a rotating boom, so that the fish-blocking electric fence can be automatically rotated. When driving away fish, it can be turned to block the fishway to prevent fish from swimming in the opposite direction. When not driving away fish, it can be rotated to a position parallel to the fishway to facilitate the normal passage of fish.

[0022] (4) The rotating boom in the present invention is connected to the fish-blocking electric fence through a diagonal tie rod and a connecting spring, which can adapt to the inclination and vibration of the fish-blocking electric fence caused by the imbalance of the electric fence gravity, the swing of the boom and different hydrodynamic conditions, thereby enhancing the working reliability of the fish-blocking electric fence.

[0023] (5) The rotating boom of the present invention adopts a thrust spherical roller bearing as an end adaptable bearing, which can adapt to the vibration and swing of the rotating boom caused by the driving mechanism within a certain range.

[0024] (6) The fish-driving device of the present invention can be automatically controlled. When the number of fish in the fishway reaches a certain level, the fish-driving device can be automatically controlled to drive the fish quickly into the fish collecting chamber, thereby greatly increasing the fish passing efficiency of the fishway.

[0025] The present invention is simple to install and disassemble as a whole, has strong adaptability, requires little maintenance and is easy to maintain, realizes automatic driving of fish, and quickly collects fish for the next step of transportation, greatly increases the fish passing efficiency of the fishway, reduces human intervention and the impact on ecological environment protection, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a motor as the driving mechanism of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the driving mechanism of the present invention as a push rod;

[0028] Figure 3 It is a layout diagram of fish driving state of the present invention;

[0029] Figure 4 It is a layout diagram of fish passing state of the present invention;

[0030] Figure 5 It is the control principle diagram of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the motor drive mechanism in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the electric push rod driving mechanism of the present invention;

[0033] Figure 8 is a plan view of the electric push rod driving mechanism of the present invention;

[0034] Figure 9 It is a flow chart of driving fish of the present invention.

[0035] In the figure: 1—fish blocking electric grid, 100—galvanized pipe electrode group, 2—rotating boom, 3—traveling trolley, 4—driving mechanism, 400—support frame, 401—90° bending rod, 5—rotating mechanism, 500—rotating support, 501—end face adapting bearing, 502—support bearing, 6—elastic connecting piece, 7—balanced inclined rod, 8—horizontal connecting rod, 9—fishway, 900—side wall, 901—fish inlet, 902—fish driving area, 903—fish inlet area, 10—maintenance stacking gate, 11—fish collecting compartment lifting shaft, 12—camera, 13—laser transmitter, 14—laser positioning plate, 15—control cabinet, 16—traveling track, 17—third-level energy dissipation pool, 18—second-level energy dissipation pool, 19—first-level energy dissipation pool, 20—gate valve. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Figures 1 to 9These are all the drawings of the embodiments, which are drawn in a simplified manner and are only used to clearly and concisely illustrate the purpose of the embodiments of the present invention. The technical solutions shown in the drawings below are the specific solutions of the embodiments of the present invention and are not intended to limit the scope of the present invention claimed. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the utility model product is usually placed during use, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0038] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, terms such as "set" and "connect" should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] An intelligent rotary fishway fish repelling device provided in the embodiment is used for fish repelling in the fish passage facilities built in hydropower stations, such as Figure 3 and Figure 4 As shown, the fish passage facility includes a fishway 9 and a fish collecting chamber lift well 11 provided at the end of the fishway. At the position of the fish collecting chamber lift well 11, there are a tertiary stilling basin 17, a secondary stilling basin 18, and a primary stilling basin 19 to dissipate the energy of the water entering the fish collecting chamber lift well 11 and then discharge it. A sluice valve 20 is provided at the drainage outlet of the primary stilling basin 19. The fishway 9 is arranged in the relatively gentle flow area of the non-flood discharge and power generation dam sections on both sides of the water conservancy project. The fish inlet 901 of the fishway 9 is arranged downstream of the hydropower station, and its fish inlet 901 is arranged as a decentralized fish inlet. An inspection laminated gate 10 is provided at a position near the fish inlet 901 of the fishway. As Figure 1 and Figure 2As shown in the figure, the fish driving device includes a traveling mechanism, a fish blocking electric fence 1, and a fish blocking fence rotating mechanism. The traveling mechanism includes a traveling trolley 3 and traveling tracks 16 symmetrically distributed on the top surfaces of the two side walls 900 of the fishway 9. The starting end of the traveling track 16 is set at a position 5 - 10 m away from the overhaul flap gate 10 in length, and the terminal of the traveling track 16 extends along the fishway 9 to both sides of the fish collecting chamber lift well 11. The traveling trolley 3 includes a traveling support and traveling wheels symmetrically arranged at the bottoms of both ends of the traveling support. The traveling trolley 3 is placed on the traveling track 16 and moves back and forth on the traveling track 16. The fish blocking electric fence 1 is vertically suspended in the fishway 9 through the fish blocking fence rotating mechanism and is perpendicular to the fishway 9 during the fish driving process, dividing the fishway 9 into a fish driving area 902 adjacent to the fish collecting chamber lift well 9 and a fish inlet area 903 adjacent to the overhaul flap gate 10. The fish blocking fence rotating mechanism includes a driving mechanism 4, a rotating mechanism 5, and a rotating suspension rod 2. The driving mechanism 4 is installed at the center position of the traveling support of the traveling trolley 3 through a support frame 400 and is connected through the rotating mechanism 5 and the rotating suspension rod 2. The lower end of the rotating suspension rod 2 passes through the center position of the traveling support and is connected to the center position of the top of the fish blocking electric fence 1. Driven by the traveling trolley 3, the fish blocking electric fence 1 can move along the fishway to drive fish; under the action of the driving mechanism 4, the fish blocking fence 1 can be controlled to rotate 90 degrees forward or backward.

[0040] The intelligent rotary fishway fish driving device in the embodiment, as Figure 1 and Figure 2 shown, the fish blocking electric fence 1 includes an insulating grid fence and a galvanized pipe electrode group 100 arranged in the middle of the grid fence. The transmission line of the galvanized pipe electrode group 100 passes through the rotating suspension rod 2 and is led out from the top end of the rotating suspension rod 2; the height and width of the fish blocking electric fence 1 match the channel height and width of the fishway 9, and there are 10 - 20 mm gaps between both sides of the fish blocking electric fence 1 and the two side walls of the fishway 9 and between the bottom edge of the fish blocking electric fence 1 and the bottom surface of the fishway 9. A horizontal connecting rod 8 is provided at the connection end of the rotating suspension rod 2 and the fish blocking electric fence 1. The horizontal connecting rod 8 is rigidly connected to the rotating suspension rod 2. The horizontal connecting rod 8 is connected to the fish blocking electric fence 1 through an elastic connecting member 6. The elastic connecting member 6 is at least two connecting springs. Two balance inclined pull rods 7 are symmetrically arranged on both sides of the horizontal connecting rod 8. One end of each balance inclined pull rod 7 is slidably connected to the horizontal connecting rod 8, and the other end is hinged to the fish blocking electric fence 1.

[0041] The intelligent rotary fishway fish driving device in the embodiment, as Figure 6 and Figure 7As shown in the figure, the rotation mechanism 5 includes a rotating support 500, an end face adaptive bearing 501 and a support bearing 502. The rotating support 500 is installed at the center of the top of the walking trolley 3. The upper end of the rotating boom 2 passes through the bracket of the walking trolley 3 and the rotating support 500 and is connected to the driving rod of the driving mechanism 4. An end face adaptive bearing 501 and a support bearing 502 are respectively arranged at the upper and lower ends of the contact part between the rotating support 500 and the rotating boom 2. The rotating boom 2 is rotatably connected to the rotating support 500 through the end face adaptive bearing 501 and the support bearing 502. The end face adaptive bearing 501 is a double-row spherical self-aligning roller bearing, and the support bearing 502 is a thrust self-aligning roller bearing. The driving mechanism 4 is a three-in-one driving motor or an electric push rod. When the driving mechanism is a driving motor, as Figure 6 shown, the driving motor is installed on the walking bracket of the walking trolley 3 through a support frame 400. The driving rod is directly connected to the control end of the rotating boom 2 and controls the rotating boom 2 to rotate forward or backward by 90°. When the driving mechanism is an electric push rod, as Figure 7 and Figure 8 shown, the driving rod of the electric push rod is connected to the control end of the rotating boom 2 through a 90° bent rod 401. The electric push rod is vertically hinged on the support frame 400 and can rotate in a plane. When the electric push rod works, it pushes the 90° bent rod 401 to rotate, driving the rotating boom to rotate forward or backward by 90°.

[0042] In the intelligent rotary fishway fish repelling device in the embodiment, as Figures 3 to 5 shown, the fish repelling device further includes a control cabinet 15, a camera 12 arranged in the fish repelling area 902 and a laser limit device. The laser limit device includes a laser emitter 13 installed on the walking trolley 3 and a laser positioning plate 14 arranged at the end of the walking track 16. The camera 12 is directly facing the fish repelling area 902 of the fishway 9. The signal output ends of the camera 12 and the laser limit device are connected to the signal input end of the control cabinet 15. The signal output end of the control cabinet 15 is connected to the driving mechanism 4, the driving mechanism of the walking trolley 3 and the power-on control end of the fish blocking electric grid 1. The walking distance of the walking trolley 3 on the walking track 16 is limited by the laser emitter 13 and the laser positioning plate 14. When the walking trolley 3 walks to both sides of the fish collecting chamber lifting shaft 11, it stops walking and returns along the original path.

[0043] The present invention monitors and intelligently identifies the number of fish in the fishway through the camera 12. When the number reaches the preset number of the control system, the console sends a signal, and the driving mechanism 4 of the fish driving device automatically starts to work, driving the rotating boom 2 and the fish barrier 1 to rotate, making the fish barrier 1 perpendicular to the water flow direction. The transmission cable supplies power, and the fish barrier 1 generates electric waves. The traveling mechanism of the fish driving device works, making the fish driving device travel along the traveling track 16 towards the fish collecting box lift well 11 to drive the fish into the fish collecting box. After the fish driving work is completed, the driving mechanism 4 of the fish driving device runs, the boom rotates to the initial state, the traveling mechanism runs, travels to the initial position, and the device returns to the initial fish passing state.

[0044] The image discrimination system in the present invention includes the following six links: 1. Image acquisition; 2. Camera calibration; 3. Feature extraction; 4. Image matching; 5. Digital measurement; 6. Signal transmission.

[0045] After the camera collects the image, a preprocessing signal is obtained and transmitted to the status monitoring server in the control cabinet 15 on the rack of the fish driving device through the Ethernet or 4G / 5G module. Combining with the status monitoring system of the control cabinet 15, the real-time display and real-time storage of the device status data are realized. The CMA software of the status monitoring and intelligent diagnosis system of the server is based on the B / S architecture. In the case of accessing the external network / intranet, it can be remotely accessed through a browser, and relevant login permissions can be set. CMA supports WebAPI interfaces, TCP / IP, and OPC communication methods, and can realize data interaction with other third-party systems. The image acquisition takes into account two types of signals, infrared images and optical images. Among them, the optical image signal adopts a binocular camera, and the three-dimensional reconstruction of the tooth shape is completed through parallax analysis. The device model is: Intel RealSense Camera D415 binocular structured light infrared depth camera (ActiveIR Stereo). The running state of the trolley is discriminated by a laser sensor, and a laser positioning plate is arranged above the fish collecting box to monitor the position of the fish driving device in real time and feedback this information to the control cabinet. The AD conversion of the acquisition system adopts ADS8413, with dual-channel synchronous sampling, and the sampling rate is required to be above 1M; the control processing system of the control cabinet 15 adopts the ZYNQ series FPGA XC7Z020-2CLG4841, and performs arithmetic processing on the collected image signals. The system uses Ethernet to transmit data to the outside world, runs the Linux operating system inside the module, and the overall module is powered by 12V DC; data communication can adopt two methods, wired transmission and wireless transmission: 1) Wired transmission: An optical cable parallel to the power supply cable of the fish driving device, only one optical-electric conversion module is needed; 2) Wireless transmission is mainly used for the transmission of the image recognition system and the device running state, and adopts the GPRS method for transmission. A 4G industrial-grade wireless router with the model ZR2000 is selected to build the transmission system environment. The signal is sent to the upper computer located on the console through the wired / wireless network to realize remote data monitoring and indication control.

[0046] The method for driving fish by the intelligent rotary fishway fish driving device in the embodiment is as follows Figure 9 shown, and its specific steps are as follows:

[0047] (1) Before the fish in the downstream of the hydropower station enter the fishway, the traveling trolley is placed at one end of the traveling track near the fish inlet, and the fish blocking electric grid 1 is parallel to the water flow direction, as Figure 4 shown. At this time, the fishway is in an open state, and the fish enter the fish inlet area 903 of the fishway 9 through the decentralized fish inlets of the fishway 9. The fish in the fish inlet area 903 enter the fish driving area 902 through the open fish blocking electric grid 1;

[0048] (2) Monitor the fish quantity in the fish driving area 902 of the fishway by means of image acquisition. When the fish quantity reaches the transportation requirement, control the fish blocking electric grid to rotate 90°, as Figure 3 shown, block the inlet of the fishway 9, and at the same time control the traveling trolley 3 to move along the fishway 9 towards the direction of the fish collecting chamber lifting shaft 11, driving the fish blocking electric grid 1 to drive the fish in the fish driving area 902 of the fishway into the fish collecting chamber; the fish blocking electric grid emits electric waves with an influence range within 1.5 m during the fish driving process to automatically drive the fish;

[0049] (3) After the fish blocking electric grid 1 drives the fish in the fishway into the fish collecting chamber, automatically control the traveling trolley 3 to move along the fishway in the opposite direction towards the direction of the maintenance stop log gate 10, and before moving or when moving to the starting end, control the fish blocking electric grid 1 to rotate 90° to restore the passage of the fishway.

[0050] As mentioned above, this is only one embodiment of the present invention, and its description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An intelligent rotary fishway fish repelling device, which is used for fish repelling in the fish passage facilities built in hydropower stations. The fish passage facilities include a fishway (9) and a fish collecting box lifting well (11) arranged at the end of the fishway. The fish inlet (901) of the fishway (9) is arranged downstream of the hydropower station. An overhaul laminated gate (10) is arranged at a position near the fish inlet (901) of the fishway. It is characterized in that: The fish-driving device comprises a walking mechanism, a fish-blocking electric fence (1) and a fish-blocking fence rotating mechanism. The walking mechanism comprises a walking trolley (3) and walking tracks (16) symmetrically distributed on the top surfaces of the two side walls (900) of the fishway (9). The starting end of the walking track (16) is arranged at a position close to the maintenance stacking gate (10), and the terminal end extends along the fishway (9) to the fish collection chamber lifting shaft (11). The walking trolley (3) is placed on the walking track (16) and moves back and forth on the walking track (16). The fish-blocking electric fence (1) is vertically suspended in the fishway (9) through a fish-blocking electric fence rotating mechanism, and is perpendicular to the fishway (9) during the fish-driving process, so as to divide the fishway (9) into a fish-driving area (902) adjacent to the fish-collecting chamber lifting shaft (11) and a fish-entering area (903) adjacent to the maintenance stacking gate (10); the fish-blocking electric fence rotating mechanism comprises a driving mechanism (4), a rotating mechanism (5) and a rotating suspension rod (2); the driving mechanism (4) is mounted on a traveling trolley (3); the upper end of the rotating suspension rod (2) is The rotating boom (2) is connected to the driving shaft of the driving mechanism (4) through a rotating mechanism (5), and is driven to rotate by the driving mechanism (4); a horizontal connecting rod (8) is provided at the connecting end of the rotating boom (2) and the fish blocking electric fence (1); the horizontal connecting rod (8) is rigidly connected to the rotating boom (2); the horizontal connecting rod (8) is connected to the fish blocking electric fence (1) through an elastic connecting member (6); two balancing inclined rods (7) are symmetrically arranged on both sides of the horizontal connecting rod (8), one end of which is slidably connected to the horizontal connecting rod (8), and the other end of which is slidably connected to the horizontal connecting rod (8). The end of the electric push rod is hingedly connected to the fish blocking electric fence (1); the driving mechanism is an electric push rod, the driving rod of the electric push rod is connected to the control end of the rotating boom (2) through a 90° bent rod (401), the electric push rod is vertically hinged on the support frame (400) and can rotate in a plane, when the electric push rod is working, it pushes the 90° bent rod (401) to rotate and drives the rotating boom to rotate 90° forward or reverse; when the walking trolley (3) is moving, it drives the fish blocking electric fence (1) to move along the fishway (9) to drive fish away; The fish-driving device further comprises a control cabinet (15) and a camera (12) arranged in a fish-driving area (902), wherein the camera (12) faces the fish-driving area (902) of the fishway (9), a signal output end of the camera (12) is connected to a signal input end of the control cabinet (15), and the signal output end of the control cabinet (15) is connected to a driving mechanism (4), a driving mechanism of a walking trolley (3), and an energizing control end of the fish-blocking electric fence (1).

2. The intelligent rotary fishway fish repelling device according to claim 1, wherein: The fish-driving device also includes a laser limiting device, which includes a laser transmitter (13) installed on the walking trolley (3) and a laser positioning plate (14) arranged at the terminal of the walking track, and the signal output end of the laser limiting device is connected to the signal input end of the control cabinet (15).

3. The intelligent rotary fishway fish repelling device according to claim 1 or 2, characterized in that: The starting point of the walking track (16) is 5 to 10 m away from the maintenance flap gate (10), and the end point extends to both sides of the fish collecting chamber hoist well (11); the walking trolley (3) includes a walking support and walking wheels symmetrically arranged at the bottoms of both ends of the walking support, and the driving mechanism (4) is installed on the walking support through a support frame (400). The lower end of the rotating suspension rod (2) passes through the central position of the walking support and is connected to the central position at the top of the fish barrier grid (1).

4. An intelligent rotary fishway fish repelling device according to claim 1 or 2, characterized in that: The elastic connection member (6) is at least two connecting springs.

5. An intelligent rotary fishway fish repelling device according to claim 1 or 2, characterized in that: The rotating mechanism (5) includes a rotating support (500), an end face adapting bearing (501), and a support bearing (502). The rotating support (500) is installed at the central position on the top of the walking trolley (3). The upper end of the rotating suspension rod (2) passes through the support of the walking trolley (3) and the rotating support (500) and is connected to the driving rod of the driving mechanism (4). An end face adapting bearing (501) and a support bearing (502) are respectively arranged at the upper and lower ends of the contact part between the rotating support (500) and the rotating suspension rod (2). The rotating suspension rod (2) is rotatably connected to the rotating support (500) through the end face adapting bearing (501) and the support bearing (502); the end face adapting bearing (501) is a double-row spherical self-aligning roller bearing, and the support bearing (502) is a thrust self-aligning roller bearing.

6. The intelligent rotary fishway fish repelling device according to claim 1 or 2, characterized in that: The fish barrier grid (1) includes an insulating grid and a galvanized pipe electrode group (100) arranged in the middle of the grid. The transmission line of the galvanized pipe electrode group (100) passes through the rotating suspension rod (2) and is led out from the top end of the rotating suspension rod (2); the height and width of the fish barrier grid (1) match the channel height and width of the fishway (9), and there is a 10 - 20 mm gap between both sides of the fish barrier grid (1) and the side walls of the fishway (9) and between the bottom edge of the fish barrier grid (1) and the bottom surface of the fishway (9).

7. A method for driving fish using the intelligent rotary fishway fish driving device described in claim 1, which is applicable to driving fish from the overhaul stoplog slot end to the fish collecting chamber lift well in the fishway of a hydropower station, characterized in that The specific steps are as follows: (1) Before the fish in the downstream of the hydropower station enter the fishway, the walking trolley is placed at one end of the walking track near the fish inlet, and the fish barrier grid is parallel to the water flow direction. At this time, the fishway is in an open state; (2) When the amount of fish in the fishway reaches the transportation volume of the fish collecting chamber hoist well, control the fish barrier grid to rotate 90° to block the fishway inlet, and drive the walking trolley to move along the fishway towards the direction of the fish collecting chamber hoist well, driving the fish barrier grid to drive the fish in the fishway into the fish collecting chamber; (3) After the fish barrier grid drives the fish in the fishway into the fish collecting chamber, the walking trolley moves along the fishway towards the direction of the maintenance flap gate, and before moving or when moving to the starting end, control the fish barrier grid to rotate 90° to resume the passage of the fishway; The walking of the fish driving device and the rotation of the fish blocking electric fence are both controlled by the control cabinet to work automatically, and the fish quantity in the fishway is monitored by means of image acquisition. When the fish quantity reaches the transportation requirement, the control cabinet is used to control the fish blocking electric fence to rotate 90° to block the fishway inlet, and at the same time, the walking trolley is controlled to move along the fishway towards the fish collecting box lift well; the moving stroke of the walking trolley is limited by the laser limit device. When the walking trolley moves to the positions on both sides of the fish collecting box lift well, it stops moving, and the walking trolley is controlled to move in the reverse direction to the starting end, and at the same time, the fish blocking electric fence is controlled to rotate 90 degrees again to open the fishway inlet.

8. A method for driving fish using the intelligent rotary fishway fish driving device according to claim 7, characterized in that: During the fish driving process, the fish blocking electric fence emits electric waves with an influence range within 1.5 m to automatically drive the fish.

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