A fish aggregation area adjusting apparatus and a control method
By setting up adjustable water-blocking structures and fish monitoring devices in the fish-attracting area, combined with diversion bypass channels and fish-blocking facilities, the problem of unstable water flow interfering with fish attraction was solved, achieving stable control of the water flow environment and improving fish-attracting efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUANENG LANCANG RIVER HYDROPOWER CO LTD
- Filing Date
- 2026-04-17
- Publication Date
- 2026-06-12
Smart Images
Figure CN122190174A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water conservancy and hydropower technology, and more specifically, to a fish-gathering area regulation device and control method. Background Technology
[0002] With the large-scale construction of water conservancy and hydropower projects and the increasing demands for water ecological environment protection, the construction of large dams must balance engineering benefits with ecological protection. To alleviate the obstructive effect of dams on river ecosystems, and especially to ensure the natural migration needs of anadromous fish, modern water conservancy projects generally require the construction of scientifically designed fish collection facilities.
[0003] Currently, the hydrodynamic characteristics of the fish collection area are mainly directly affected by the tailrace conditions downstream of the power station. The flow velocity in the fish collection area is related to the tailrace conditions, and it is impossible to control the flow velocity in the fish collection area.
[0004] However, due to the periodic changes in tailwater flow caused by the peak-shaving operation of the power station, coupled with the combined effects of river topography, gate opening and closing, and other factors, the flow velocity field in the fish gathering area exhibits unsteady characteristics. This unstable hydraulic condition significantly interferes with the fish's tendency to follow the flow. Summary of the Invention
[0005] The purpose of this application is to address the shortcomings of the prior art by providing a fish-attracting area adjustment device and control method, so that the water flow environment in the fish-attracting area is always maintained within the optimal range, thereby improving the fish-attracting efficiency.
[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows: In a first aspect, one embodiment of this application provides a fish gathering area adjustment device, the fish gathering area adjustment device comprising: a first adjustable water-blocking structure disposed at the inlet of the fish gathering area, a second adjustable water-blocking structure disposed at the outlet of the fish gathering area, a first fish monitoring device disposed within the fish gathering area, and a second fish monitoring device disposed in the fish gathering area corresponding to the fish attraction area. Both the first adjustable water-blocking structure and the second adjustable water-blocking structure are connected to a central control device to adjust the water flow rate at the inlet and outlet of the fish-collecting area by adjusting the water flow range at the inlet and outlet of the fish-collecting area, respectively. Both the first fish monitoring device and the second fish monitoring device are connected to the central control equipment and are used to monitor fish in the fish collection area and the fish attraction area, respectively.
[0007] Optionally, the entrance to the fish collection area is equipped with a fish-blocking device.
[0008] Optionally, the fish collection area adjustment device further includes: a diversion bypass channel disposed on one side of the fish collection area, the upper end of the diversion bypass channel being connected to the tailwater area at the entrance of the fish collection area, the lower end of the diversion bypass channel being connected to the outlet of the fish collection area, and fish blocking facilities being provided at the lower end of the diversion bypass channel, at the boundary between the diversion bypass channel and the fish collection area, and at the boundary of the outlet of the fish collection area.
[0009] Optionally, both the first adjustable water-blocking structure and the second adjustable water-blocking structure are inflatable rubber dams, water-filled rubber dams, or movable baffles.
[0010] Optionally, the first fish monitoring device is installed at the fish collection entrance of the fish collection area or in the fish passage monitoring channel at the fish collection entrance of the fish collection area.
[0011] Optionally, the first fish monitoring device is an infrared sensor counter, an underwater camera, or a sonar imaging device, and the second fish monitoring device is a sonar imaging device.
[0012] Secondly, another embodiment of this application provides a control method for a fish-gathering area adjustment device, the method being applied to any of the central control devices connected in the first aspect described above, the method comprising: Acquire the first fish monitoring data of the fish gathering area and the second fish monitoring data of the fish attraction area, respectively, monitored by the first fish monitoring device and the second fish monitoring device in the fish gathering area regulation device; Based on the first fish monitoring data and the second fish monitoring data, determine the number of the first fish in the fish gathering area and the number of the second fish in the fish attraction area, respectively; Based on the number of the first fish and the number of the second fish, determine whether the preset switching trigger condition for the next operating state is met; If the preset switching trigger condition for the next operating state is met, the first adjustable water-blocking structure and the second adjustable water-blocking structure in the fish collection area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish collection area, respectively, so that the fish collection area adjustment device switches to the next operating state.
[0013] Optionally, the next operating state is a fish-attracting state. If the preset switching trigger condition for the next operating state is met, the first adjustable water-blocking structure and the second adjustable water-blocking structure in the fish-collecting area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish-collecting area, respectively, so that the fish-collecting area adjustment device switches to the next operating state, including: If the number of the first fish is less than the first preset threshold and the number of the second fish is less than the second preset threshold, then the first preset switching trigger condition of the fish-attracting state is determined to be met. By controlling the first adjustable water-blocking structure to be in the first state and the second adjustable water-blocking structure to be in the second state, the water flow range of the inlet of the fish-gathering area is smaller than the water flow range of the outlet of the fish-gathering area, so that the fish-gathering area adjustment device enters the fish-attracting state.
[0014] Optionally, the next operating state is a fish-gathering state. If the preset switching trigger condition for the next operating state is met, the water flow range at the inlet and outlet of the fish-gathering area is adjusted by controlling the first and second adjustable water-blocking structures in the fish-gathering area adjustment device, respectively, so that the fish-gathering area adjustment device switches to the next operating state, including: If the number of the first fish is less than the first preset threshold, and the number of the second fish is greater than or equal to the second preset threshold, then the second preset switching trigger condition of the fish gathering state is determined to be met. By controlling both the first adjustable water-blocking structure and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish-collecting area is maintained, and the water flow range of the outlet of the fish-collecting area is increased, so that the fish-collecting area adjustment device enters the fish-collecting state.
[0015] Optionally, the next operating state is a temporary holding state. If the preset switching trigger condition for the next operating state is met, the water flow range at the inlet and outlet of the fish collection area is adjusted by controlling the first and second adjustable water-blocking structures in the fish collection area adjustment device, respectively, so that the fish collection area adjustment device switches to the next operating state, including: If the number of the first fish is greater than or equal to the first preset threshold, then the third preset switching trigger condition for the temporary holding state is determined to be met. By controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish collection area is smaller than the water flow range of the outlet of the fish collection area, so that the fish collection area adjustment device enters the temporary holding state.
[0016] Thirdly, another embodiment of this application provides a control device for a fish-gathering area adjustment device, wherein the method is applied to any of the central control devices connected in the first aspect described above, and the device includes: The acquisition module is used to acquire the first fish monitoring data of the fish collection area and the second fish monitoring data of the fish attraction area, respectively monitored by the first fish monitoring device and the second fish monitoring device in the fish collection area adjustment device. The determining module is used to determine the number of first fish in the fish gathering area and the number of second fish in the fish attraction area based on the first fish monitoring data and the second fish monitoring data, respectively. The determining module is used to determine whether the preset switching trigger condition for the next running state is met based on the number of the first fish and the number of the second fish. The control module is used to adjust the water flow range at the inlet and outlet of the fish collection area by controlling the first and second adjustable water-blocking structures in the fish collection area adjustment device, respectively, if the preset switching trigger condition of the next operating state is met, so that the fish collection area adjustment device switches to the next operating state.
[0017] Fourthly, another embodiment of this application provides a central control device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the central control device is running, the processor communicates with the memory via the bus, and the processor executes the machine-readable instructions to perform the steps of the control method of the fish gathering area adjustment device as described in any of the second aspects above.
[0018] Fifthly, another embodiment of this application provides a storage medium storing a computer program, which, when executed by a processor, performs the steps of the control method for the fish-gathering area adjustment device as described in any of the first aspects above.
[0019] The beneficial effects of this application are: This application provides a fish-attracting area adjustment device and control method. The fish-attracting area adjustment device includes: a first adjustable water-blocking structure disposed at the inlet of the fish-attracting area, a second adjustable water-blocking structure disposed at the outlet of the fish-attracting area, a first fish monitoring device disposed within the fish-attracting area, and a second fish monitoring device disposed in a corresponding fish-attracting area within the fish-attracting area. Both the first and second adjustable water-blocking structures are connected to a central control device to adjust the water flow velocity at the inlet and outlet of the fish-attracting area by adjusting the water flow range at the inlet and outlet, respectively. Both the first and second fish monitoring devices are connected to the central control device for monitoring fish in the fish-attracting area and the fish-attracting area, respectively. By setting the first and second adjustable water-blocking structures, this application controls the water flow at the inlet and outlet of the fish-attracting area, thereby controlling the water flow velocity within the fish-attracting area and the water flow velocity in the fish-attracting area. This ensures that the water flow environment within the fish-attracting area is always maintained within the optimal range, guaranteeing the continuity and stability of fish attraction, thereby improving fish-attracting efficiency. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a fish collection area adjustment device provided in an embodiment of this application; Figure 2 This is a schematic diagram of another fish-collecting area adjustment device provided in an embodiment of this application; Figure 3 A schematic diagram of another fish-collecting area adjustment device provided in this application embodiment; Figure 4 A schematic diagram of another fish-collecting area adjustment device provided in this application embodiment; Figure 5 A schematic flowchart illustrating a control method for a fish-collecting area adjustment device provided in an embodiment of this application; Figure 6 A schematic diagram of the device switching process in a control method for a fish-collecting area adjustment device provided in an embodiment of this application; Figure 7 A schematic diagram of the device switching process in a control method for another fish-collecting area adjustment device provided in an embodiment of this application; Figure 8A schematic flowchart illustrating the device switching process in a control method for another fish-collecting area adjustment device provided in an embodiment of this application; Figure 9 A schematic flowchart illustrating another control method for a fish-collecting area adjustment device provided in an embodiment of this application; Figure 10 A schematic diagram of the structure of a control device for a fish-collecting area adjustment device provided in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of a central control device provided in an embodiment of this application.
[0022] Figure descriptions: Fish gathering area - 100; First adjustable water barrier structure - 101; Second adjustable water barrier structure - 102; First fish monitoring device - 103; Fish blocking facility - 104; Diversion bypass channel - 105; Fish passage monitoring channel - 106; Fish attraction area - 200; Second fish monitoring device - 201. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the accompanying drawings in this application are for illustrative and descriptive purposes only and are not intended to limit the scope of protection of this application. Furthermore, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of this application. It should be understood that the operations in the flowcharts may not be implemented in sequence, and steps without logical contextual relationships may be reversed or implemented simultaneously. In addition, those skilled in the art, guided by the content of this application, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts.
[0024] Furthermore, the described embodiments are merely some, not all, of the embodiments of this application. The components of the embodiments of this application described and illustrated herein can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] It should be noted that the term "comprising" will be used in the embodiments of this application to indicate the presence of the features declared thereafter, but does not exclude the addition of other features.
[0026] With the construction of water conservancy and hydropower projects and the increasing requirements for water ecological protection, large dams often require fish passage facilities to help anadromous fish migrate to upstream waters. However, in existing fish lift systems, the fish collection area used to attract fish often faces the problem of frequent and difficult-to-control water flow changes, making it easy for fish to be washed out of the collection area. To address this, this application provides a fish collection area adjustment device, which includes: a first adjustable water-blocking structure at the inlet of the fish collection area, a second adjustable water-blocking structure at the outlet of the fish collection area, a first fish monitoring device within the fish collection area, and a second fish monitoring device in the corresponding fish-attracting area of the fish collection area. Both the first and second adjustable water-blocking structures are connected to a central control device to adjust the water flow velocity at the inlet and outlet of the fish collection area by adjusting the water passage range at the inlet and outlet, respectively; the first and second fish monitoring devices are both connected to the central control device to monitor fish in the fish collection area and the fish-attracting area, respectively. This application achieves water flow velocity control in the fish-gathering area by setting up a first adjustable water-blocking structure and a second adjustable water-blocking structure, thereby avoiding the problem of frequent and uncontrollable water flow changes in the fish-gathering area and the fish being easily washed out of the fish-gathering area. This ensures that the water flow environment in the fish-gathering area is always maintained within the optimal range, guaranteeing the continuity and stability of fish attraction, and thus improving fish-gathering efficiency.
[0027] The fish-collecting area adjustment device provided in the embodiments of this application will be described below with reference to several accompanying drawings. Figure 1 This is a schematic diagram of the structure of a fish-collecting area adjustment device provided in an embodiment of this application, as shown below. Figure 1 As shown, the fish collection area adjustment device includes: a first adjustable water-blocking structure 101 set at the inlet of the fish collection area 100, a second adjustable water-blocking structure 102 set at the outlet of the fish collection area, a first fish monitoring device 103 set in the fish collection area, and a second fish monitoring device 201 set in the fish collection area 100 corresponding to the fish attraction area 200. The first adjustable water-blocking structure 101 and the second adjustable water-blocking structure 102 are both connected to the central control device 300, so as to adjust the water flow speed of the inlet and outlet of the fish collection area 100 by adjusting the water flow range at the inlet and outlet of the fish collection area 100 respectively. The first fish monitoring device 103 and the second fish monitoring device 201 are both connected to the central control device 300 and are used to monitor fish in the fish collection area 100 and the fish attraction area 200, respectively.
[0028] The fish collection area 100 is a fish-attracting pond or fish trough structure located in the tailwater downstream of the large dam. It serves as a space for fish to temporarily stay and gather before entering the fish lift. The bottom of the fish collection area 100 is equipped with a fish-lifting bucket or lifting basket, used to scoop up and transport fish from the area when there are sufficient numbers or species. One end of the fish collection area 100 connects to the tailwater channel, forming an inlet; the other end is close to the downstream channel, forming an outlet.
[0029] Both the first adjustable water-retaining structure 101 and the second adjustable water-retaining structure 102 are inflatable rubber dams, water-filled rubber dams, or movable baffles. The first adjustable water-retaining structure 101 and the second adjustable water-retaining structure 102 can change the cross-sectional area of the inlet and outlet of the fish-collecting area 100, thereby regulating the flow rate and velocity of water entering and leaving the fish-collecting area 100. When the first adjustable water-retaining structure 101 and the second adjustable water-retaining structure 102 are inflatable rubber dams, the first adjustable water-retaining structure 101 deflates and contracts under normal conditions, lowering the dam height to increase the inlet opening, allowing more tailwater to enter the fish-collecting area 100; when flow restriction is required, the first adjustable water-retaining structure 101 inflates and raises the dam, partially closing the inlet of the fish-collecting area 100, reducing water flow. By adjusting the degree of inflation of the rubber dam, the flow velocity and flow rate entering the fish-collecting area 100 can be continuously controlled. When the second adjustable water-retaining structure 102 is inflated, it raises the water-blocking area, reducing the flow cross-section of the outlet of the fish-collecting area 100; when it deflates and contracts, it lowers the dam, increasing the flow area of the outlet of the fish-collecting area 100. The second adjustable water-retaining structure 102 is mainly used to control the drainage volume of the fish-collecting area 100. When the outlet of the fish-collecting area 100 is partially closed, the water flow in the fish-collecting area 100 is obstructed and slows down; when the outlet of the fish-collecting area 100 is fully open, the fish-collecting area 100 is smoothly connected to the downstream, and the water can flow freely through the fish-collecting area 100 and be discharged. When the first adjustable water-retaining structure 101 and the second adjustable water-retaining structure 102 are movable baffles, the movable baffles can be hydraulically driven to adjust the flow area of the inlet and outlet of the fish-collecting area 100.
[0030] The first fish monitoring device 103 collects dynamic information about fish entering the fish collection area 100, such as the number of fish, and can determine the direction of fish entering and leaving. It is connected to the central control device 300 via a signal cable or wireless network. The first fish monitoring device 103 can be an infrared sensor counter, an underwater camera, or a sonar imaging device.
[0031] The fish-attracting area 200 is located near the outlet of the fish-collecting area 100. A second fish monitoring device 201 is used to identify the number and activity of fish in the fish-attracting area 200, and is connected to the central control device 300 via a signal cable or wireless network. The second fish monitoring device 201 can be a sonar imaging device. When the second fish monitoring device 201 is a sonar imaging device, it emits ultrasonic waves to obtain real-time images of the downstream water area, and identifies the number and activity of fish through image analysis, thus identifying the number and size of fish targets entering the fish-attracting area 200.
[0032] The central control device 300 can be installed in the control room next to the dam body, equipped with dedicated control software and data processing module. The central control device 300 is connected to the first fish monitoring device 103 and the second fish monitoring device 201 to obtain fish count data of the fish collection area 100 and the number of fish in the fish attraction area 200. Based on the number of fish in the fish collection area 100 and the fish attraction area 200, the first adjustable water-blocking structure 101 and the second adjustable water-blocking structure 102 are controlled respectively to dynamically change the water flow distribution and flow rate.
[0033] This application provides a fish-gathering area adjustment device, comprising: a first adjustable water-blocking structure disposed at the inlet of the fish-gathering area; a second adjustable water-blocking structure disposed at the outlet of the fish-gathering area; a first fish monitoring device disposed within the fish-gathering area; and a second fish monitoring device disposed in a corresponding fish-attracting area within the fish-gathering area. Both the first and second adjustable water-blocking structures are connected to a central control device to adjust the water flow velocity at the inlet and outlet of the fish-gathering area, respectively, by adjusting the water passage range at the inlet and outlet. Both the first and second fish monitoring devices are connected to the central control device for monitoring fish in the fish-gathering area and the fish-attracting area, respectively. By setting the first and second adjustable water-blocking structures, this application controls the water flow at the inlet and outlet of the fish-gathering area, thereby controlling the water flow velocity within the fish-gathering area and the water flow velocity in the fish-attracting area. This ensures that the water flow environment within the fish-gathering area is always maintained within the optimal range, guaranteeing the continuity and stability of fish attraction, thereby improving fish-attracting efficiency.
[0034] Based on the above embodiments, this application also provides another fish-collecting area adjustment device. Figure 2 A schematic diagram of another fish-collecting area adjustment device provided in this application embodiment is shown below. Figure 2 As shown above, in the above Figure 1 Based on this, a fish-blocking facility 104 is installed at the entrance of the fish collection area 100.
[0035] Among them, the fish barrier 104 can be a fish barrier net or a fish barrier fence. The fish barrier 104 allows water to pass through but blocks fish from entering, preventing fish from bypassing the fish collection area 100 and flowing directly downstream with the water flow.
[0036] In this embodiment of the application, by setting up a fish-blocking facility at the entrance of the fish-gathering area, the water flow can be used to guide fish into the fish-gathering area, avoiding the fish from swimming randomly and causing low gathering efficiency.
[0037] Based on the above embodiments, this application also provides a fish-collecting area adjustment device. Figure 3 This is a schematic diagram of another fish-collecting area adjustment device provided in the embodiments of this application, as shown below. Figure 3 As shown above, in the above Figure 1 Based on this, the fish collection area regulation device also includes: a diversion bypass channel 105 set on one side of the fish collection area 100, the upper end of the diversion bypass channel 105 being connected to the tailwater area at the entrance of the fish collection area, the lower end of the diversion bypass channel 105 being connected to the outlet of the fish collection area 100, and fish blocking facilities 104 being set at the lower end of the diversion bypass channel 105, at the boundary between the diversion bypass channel 105 and the fish collection area 100, and at the boundary at the outlet of the fish collection area 100.
[0038] The diversion bypass channel 105 is a diversion channel built along the side of the fish collection area 100. It provides an additional outlet for the tailwater, allowing some tailwater to bypass the fish collection area 100 and flow directly downstream, thus regulating the water flow. When it is necessary to reduce the flow velocity within the fish collection area 100, the diversion bypass channel 105 handles a larger volume of water to maintain a higher flow rate and velocity in the fish attraction area. Fish-blocking facilities 104 are installed at the lower end of the diversion bypass channel 105, at the boundary between the diversion bypass channel 105 and the fish collection area 100, and at the boundary of the outlet of the fish collection area 100 to prevent fish from bypassing the fish collection area 100 and flowing directly downstream with the bypass water.
[0039] In this embodiment, the fish-gathering area adjustment device further includes: a diversion bypass channel disposed on one side of the fish-gathering area. The upper end of the diversion bypass channel is connected to the tailwater area at the entrance of the fish-gathering area, and the lower end of the diversion bypass channel is connected to the outlet of the fish-gathering area. Fish-blocking facilities are provided at the lower end of the diversion bypass channel, at the boundary between the diversion bypass channel and the fish-gathering area, and at the boundary of the outlet of the fish-gathering area. By setting up the diversion bypass channel, this application reduces the impact of water flow through the fish-gathering area while ensuring the continuous presence of fish-attracting water flow that can be perceived by fish.
[0040] Based on the above embodiments, this application provides yet another fish-collecting area adjustment device. Figure 4This is a schematic diagram of another fish-collecting area adjustment device provided in the embodiments of this application. Figure 3 Based on this, the fish collection area 100 has an irregular shape, and a fish monitoring channel 106 is provided at the fish collection entrance of the fish collection area 100, which contains a first fish monitoring device 103. Alternatively, the first fish monitoring device 103 is located at the fish collection entrance of the fish collection area 100. Figure 4 Taking the example of the first fish monitoring device 103 being installed at the fish collection entrance of the fish collection area 100 and also having a fish monitoring channel 106 installed inside.
[0041] In this embodiment, the first fish monitoring device is installed at the fish collection entrance of the fish collection area or in the fish passage monitoring channel at the fish collection entrance of the fish collection area. The fish can be monitored the moment they first enter the fish collection area, avoiding missed detections caused by the fish swimming and dispersing in the area, and ensuring data integrity.
[0042] Based on the above embodiments, this application provides a control method for a fish-attracting area regulating device, applied to the central control equipment in the fish-attracting area regulating device. Figure 5 A flowchart illustrating a control method for a fish-gathering area adjustment device provided in this application embodiment is shown below. Figure 5 As shown, the method includes: Step 501: Obtain the first fish monitoring data of the fish gathering area and the second fish monitoring data of the fish attraction area from the first fish monitoring device and the second fish monitoring device in the fish gathering area adjustment device, respectively.
[0043] The first fish monitoring data refers to fish information collected by the first fish monitoring device in the fish-attracting area, such as the number of fish, fish species, and fish body length. This embodiment of the application does not impose any limitations on this. The second fish monitoring data refers to fish information collected by the second fish monitoring device in the fish-attracting area, such as the number of fish and fish density. This embodiment of the application does not impose any limitations on this.
[0044] Optionally, the system receives data from the first fish monitoring device in the fish gathering area adjustment device and the second fish monitoring device in the fish attraction area, as well as data from the second fish monitoring device.
[0045] Step 502: Based on the first fish monitoring data and the second fish monitoring data, determine the number of the first fish in the fish gathering area and the number of the second fish in the fish attraction area, respectively.
[0046] The first fish number is the number of fish going upstream in the fish gathering area minus the number of fish going downstream, and the second fish number is the number of fish going upstream in the fish attraction area minus the number of fish going downstream.
[0047] Optionally, the number of the first fish in the fish gathering area and the number of the second fish in the fish attraction area can be determined from the first fish monitoring data and the second fish monitoring data, respectively.
[0048] Step 503: Based on the number of the first fish and the number of the second fish, determine whether the preset switching trigger condition for the next running state is met.
[0049] Optionally, the preset switching trigger condition for the next operating state is determined based on the number of the first fish, or based on the number of the second fish, or based on both the number of the first fish and the number of the second fish.
[0050] Step 504: If the preset switching trigger condition for the next operating state is met, the first adjustable water-blocking structure and the second adjustable water-blocking structure in the fish collection area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish collection area, respectively, so that the fish collection area adjustment device switches to the next operating state.
[0051] Among them, the water flow range at the inlet and outlet of the fish collection area corresponding to different operating states.
[0052] Optionally, if the preset switching trigger condition for the next operating state is met, the water flow range at the inlet and outlet of the fish collection area corresponding to the next operating state is determined. By controlling the first and second adjustable water-blocking structures in the fish collection area adjustment device, the water flow range at the inlet and outlet of the fish collection area is adjusted, so that the fish collection area adjustment device switches to the next operating state.
[0053] In this embodiment, the system acquires first fish monitoring data of the fish gathering area and second fish monitoring data of the fish attraction area from the first fish monitoring device and the second fish monitoring device, respectively. Based on the first and second fish monitoring data, the system determines the number of first fish in the fish gathering area and the number of second fish in the fish attraction area. Based on the number of first and second fish, the system determines whether the preset switching trigger condition for the next operating state is met. If the preset switching trigger condition for the next operating state is met, the system controls the first and second adjustable water-blocking structures in the fish gathering area to adjust the water flow range at the inlet and outlet of the fish gathering area, respectively, so that the fish gathering area adjustment device switches to the next operating state. This application determines the water flow range at the inlet and outlet of the fish gathering area based on the next operating state, and adjusts the first and second adjustable water-blocking structures in the fish gathering area control device. This ensures that the water flow range at the inlet and outlet of the fish gathering area is different under different conditions, realizing the conversion between different operating states. This keeps the water flow range at the inlet and outlet of the fish gathering area always within the optimal range, ensuring the continuity and stability of fish attraction.
[0054] Based on the above embodiments, the next operating state is the fish-attracting state. This application embodiment also provides a device switching process in another control method for a fish-attracting area adjustment device. Figure 6 This is a schematic flowchart illustrating the device switching process in a control method for a fish-gathering area adjustment device provided in an embodiment of this application. Figure 6 As shown, in step 504 above, if the preset switching trigger condition for the next operating state is met, the first and second adjustable water-blocking structures in the fish-collecting area regulating device are controlled to adjust the water flow range at the inlet and outlet of the fish-collecting area, respectively, so that the fish-collecting area regulating device switches to the next operating state, including: Step 601: If the number of the first fish is less than the first preset threshold and the number of the second fish is less than the second preset threshold, then the first preset switching trigger condition of the fish-attracting state is met.
[0055] The first preset threshold can be 50% of the preset threshold for the fish-gathering area. The second preset threshold can be 20 fish, etc., and this application embodiment does not limit this.
[0056] Optionally, if the number of the first fish is less than the first preset threshold and the number of the second fish is less than the second preset threshold, it indicates that the number of fish in both the fish gathering area and the fish attraction area is relatively small, and then the first preset switching trigger condition for the fish attraction state is determined to be met.
[0057] Step 602: By controlling the first adjustable water-blocking structure to be in the first state and the second adjustable water-blocking structure to be in the second state, the water flow range of the inlet of the fish-collecting area is smaller than the water flow range of the outlet of the fish-collecting area, so that the fish-collecting area adjustment device enters the fish-attracting state.
[0058] The first state is a contraction state, and the second state is an expansion state.
[0059] Optionally, by controlling the first adjustable water-blocking structure to be in a first state and the second adjustable water-blocking structure to be in a second state, the first adjustable water-blocking structure is in a contracted state, providing sufficient flow for the tailwater, while the second adjustable water-blocking structure is in an expanded state, increasing the diversion of the bypass channel. At this time, the water flow range of the inlet of the fish-gathering area is smaller than that of the outlet of the fish-gathering area, causing the fish-gathering area regulating device to enter the fish-attracting state. This causes most of the tailwater to flow rapidly to the downstream fish-attracting area through the bypass channel, with a portion passing through the fish-gathering area, thus maintaining a large total flow rate, but with a moderate flow velocity within the fish-gathering area. Because the bypass channel converges near the outlet, the flow velocity in the downstream fish-attracting area is high, generating a strong fish-attracting water flow signal. A large number of fish, attracted by the high flow velocity, will gather near the outlet of the fish-gathering area and attempt to enter the fish-gathering area against the current.
[0060] In this embodiment, when the next operating state is the fish-attracting state, the first adjustable water-blocking structure is controlled to be in the first state and the second adjustable water-blocking structure is controlled to be in the second state. This ensures that the water flow range at the inlet of the fish-collecting area is smaller than the water flow range at the outlet of the fish-collecting area, thus enabling the fish-collecting area adjustment device to enter the fish-attracting state. This application can improve the success rate of attracting fish and reduce the probability of fish escaping.
[0061] Based on the above embodiments, the next operating state is the fish gathering state. This application embodiment also provides a device switching process in another control method for a fish gathering area adjustment device. Figure 7 A schematic flowchart illustrating the device switching process in a control method for another fish-collecting area adjustment device provided in this application embodiment is shown below. Figure 7 As shown, in step 504 above, if the preset switching trigger condition for the next operating state is met, the first and second adjustable water-blocking structures in the fish-collecting area regulating device are controlled to adjust the water flow range at the inlet and outlet of the fish-collecting area, respectively, so that the fish-collecting area regulating device switches to the next operating state, including: Step 701: If the number of the first fish is less than the first preset threshold and the number of the second fish is greater than or equal to the second preset threshold, then the second preset switching trigger condition for the fish gathering state is satisfied.
[0062] The second preset threshold is greater than the first preset threshold and can be 50.
[0063] Optionally, if the number of the first fish is less than the first preset threshold and the number of the second fish is greater than or equal to the second preset threshold, it indicates that the number of fish in the fish gathering area is relatively small and the number of fish in the fish attraction area is relatively large. In this case, it is determined that the second preset switching trigger condition for the fish attraction state is met, and the fish attraction area needs to be guided to the fish gathering area.
[0064] Step 702: By controlling both the first adjustable water-blocking structure and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish collection area is maintained, and the water flow range of the outlet of the fish collection area is increased, so that the fish collection area adjustment device enters the fish collection state.
[0065] Optionally, by controlling both the first and second adjustable water-blocking structures to be in the first state, the first adjustable water-blocking structure is in a contracted state to maintain the inlet opening, while the second adjustable water-blocking structure is in a contracted state to fully open the outlet. This maintains the water flow range of the inlet in the fish-gathering area and increases the water flow range of the outlet, thus putting the fish-gathering area regulating device into fish-gathering mode. The total flow through the fish-gathering area remains relatively large, but because the outlet is no longer obstructed, the water flow between the fish-gathering area and the bypass channel is redistributed, and the flow velocity inside and outside the fish-gathering area tends to be balanced. Typically, the flow velocity in the fish-gathering area remains moderate, and the flow velocity in the fish-attracting area is also moderate. Compared to the fish-attracting mode, the water flow inside the fish-gathering area is significantly slowed down, forming a slow-flowing zone where fish can more easily swim in. Fish that have already entered the fish-gathering area can smoothly remain in the fish-gathering pond, while more fish lingering in the fish-attracting area can effortlessly swim against the current into the fish-gathering area.
[0066] Alternatively, the second adjustable water-retaining structure can also be linearly adjusted in this application, that is, as the number of fish inside increases, the height of the dam is gradually changed until the set value of the fish-gathering state is reached.
[0067] In this embodiment, when the next operating state is the fish-gathering state, by controlling both the first and second adjustable water-blocking structures to be in the first state, the water flow range of the inlet of the fish-gathering area is maintained, and the water flow range of the outlet of the fish-gathering area is increased, so that the fish-gathering area regulating device enters the fish-gathering state. This application can reduce water flow obstruction, allowing fish to continuously gather in the fish-gathering area, thereby improving fish-gathering efficiency and reducing the probability of fish escaping.
[0068] Based on the above embodiments, the next operating state is the temporary holding state. This application embodiment also provides a device switching process in the control method of a fish collection area adjustment device. Figure 8 This is a schematic flowchart illustrating the device switching process in a control method for another fish-gathering area adjustment device provided in an embodiment of this application. Figure 8As shown, in step 504 above, if the preset switching trigger condition for the next operating state is met, the first and second adjustable water-blocking structures in the fish-collecting area regulating device are controlled to adjust the water flow range at the inlet and outlet of the fish-collecting area, respectively, so that the fish-collecting area regulating device switches to the next operating state, including: Step 801: If the number of the first fish is greater than or equal to the first preset threshold, then the third preset switching trigger condition for the temporary holding state is determined to be met.
[0069] Optionally, if the number of the first fish is greater than or equal to the first preset threshold, it means that the number of fish in the fish collection area meets the lifting conditions of the fish lifter, and then it is determined that the third preset switching trigger condition for the temporary holding state is met.
[0070] Step 802: By controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish collection area is smaller than the water flow range of the outlet of the fish collection area, so that the fish collection area adjustment device enters the temporary holding state.
[0071] Optionally, by controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the first adjustable water-blocking structure is in an expanded state, rising and essentially sealing the inlet of the fish-gathering area, while the second adjustable water-blocking structure is in a compressed state, continuously opening the outlet of the fish-gathering area. This results in the water flow range of the inlet of the fish-gathering area being smaller than that of the outlet, causing the fish-gathering area regulating device to enter a temporary holding state. Because the inlet is closed, almost no new tailwater enters the fish-gathering area, and the flow rate through the fish-gathering area drops to a very low level. Most of the tailwater is diverted to the downstream via the diversion bypass channel, resulting in extremely low and almost stagnant flow velocity within the fish-gathering area, providing a relatively calm aquatic environment for fish to rest and temporarily hold. Simultaneously, although the total flow rate in the downstream fish-attracting area decreases, some water still flows through the diversion bypass channel, maintaining a certain fish-attracting flow at the outlet of the fish-gathering area. If a small number of fish still downstream are attracted, they can slowly enter the fish-gathering area and rejoin the previous fish population. During the temporary holding period, the fish collection area becomes a temporary fish storage pond to ensure that the collected fish are not lost and to await the operation of the fish lift machine.
[0072] Optionally, during the temporary holding period, if the predetermined fish collection target threshold is reached or the planned fish lifting time is reached, the lifting procedure of the fish lifter or fish bucket is activated. The inlet and outlet of the fish collection area are closed to isolate the area from the tailwater. Then, the bottom fish lifter or fish bucket is raised to collect all fish within the collection area and lift them to the upstream water. The fish count in the collection area is reset to zero, the inlet is reopened, the second adjustable water-blocking structure is adjusted, and the fish-attracting state is restarted.
[0073] The control method of the fish-collecting area regulating device in this application will be described below with reference to the accompanying drawings. Figure 9 A flowchart illustrating another control method for a fish-gathering area adjustment device provided in this application embodiment is shown below. Figure 9 As shown, the next operating state can be fish-attracting state, fish-gathering state, or temporary holding state. If the number of the first fish is less than the first preset threshold and the number of the second fish is less than the second preset threshold, then the number of fish in both the fish-gathering area and the fish-attracting area is relatively small, thus satisfying the first preset switching trigger condition for the fish-attracting state. In this case, by controlling the first adjustable water-blocking structure to be in the first state and the second adjustable water-blocking structure to be in the second state, the water flow range at the inlet of the fish-gathering area is smaller than the water flow range at the outlet of the fish-gathering area, causing the fish-gathering area regulating device to enter the fish-attracting state. If the number of the first fish is less than the first preset threshold and the number of the second fish is greater than or equal to the second preset threshold, it indicates that the number of fish in the fish-gathering area is still relatively small. The number of fish in the fish-attracting area increases to be greater than or equal to the second preset threshold, thus satisfying the second preset switching trigger condition for the fish-gathering state. By controlling both the first and second adjustable water-blocking structures to be in the first state, the water flow range at the inlet of the fish-gathering area is maintained, and the water flow range at the outlet of the fish-gathering area is increased, causing the fish-gathering area regulating device to enter the fish-gathering state. If the number of fish in the first fish population is greater than or equal to the first preset threshold, it indicates that the fish in the fish-attracting area are swimming towards the fish-gathering area. Since the number of fish in the fish-gathering area is relatively large, the third preset switching trigger condition for the temporary holding state is met. By controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish-gathering area is made smaller than the water flow range of the outlet of the fish-gathering area, causing the fish-gathering area regulating device to enter the temporary holding state. During the maintenance of the temporary holding state, if the predetermined fish-gathering target threshold is reached or the planned fish-lifting time is reached, the lifting program of the fish lifter or fish lift bucket is activated, controlling the inlet and outlet of the fish-gathering area to close, isolating the fish-gathering area from the tailwater, and then raising the bottom fish lifter or fish lift bucket to catch and lift all the fish in the fish-gathering area to the upstream water. The fish count value of the fish-gathering area is reset to zero, and the inlet is reopened, the second adjustable water-blocking structure is adjusted, and the fish-attracting state is re-entered.
[0074] In this embodiment, the next operating state is a temporary holding state. By controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish gathering area is smaller than the water flow range of the outlet of the fish gathering area, causing the fish gathering area regulating device to enter the temporary holding state. This application reduces fish aggregation, collisions, and mechanical damage, and improves the efficiency of fish gathering.
[0075] Based on the same inventive concept, this application also provides a control device for a fish-gathering area adjustment device corresponding to the control method of the fish-gathering area adjustment device. Since the principle of the device in this application is similar to the control method of the fish-gathering area adjustment device described above in this application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.
[0076] Figure 10 This is a schematic diagram of the structure of a control device for a fish-gathering area adjustment device provided in an embodiment of this application, as shown below. Figure 10 As shown, the device includes: an acquisition module 1001, a determination module 1002, and a control module 1003; wherein, the acquisition module 1001 is used to acquire the first fish monitoring data of the fish collection area and the second fish monitoring data of the fish attraction area monitored by the first fish monitoring device and the second fish monitoring device in the fish collection area adjustment device, respectively. The determining module 1002 is used to determine the number of first fish in the fish gathering area and the number of second fish in the fish attraction area based on the first fish monitoring data and the second fish monitoring data, respectively. The determining module 1002 is used to determine whether the preset switching trigger condition for the next running state is met based on the number of the first fish and the number of the second fish. The control module 1003 is used to adjust the water flow range at the inlet and outlet of the fish collection area by controlling the first and second adjustable water-blocking structures in the fish collection area adjustment device, respectively, if the preset switching trigger condition of the next operating state is met, so that the fish collection area adjustment device switches to the next operating state.
[0077] Optionally, the next operating state is the fish-attracting state, and the control module 1003 is specifically used to: if the number of the first fish is less than the first preset threshold and the number of the second fish is less than the second preset threshold, then determine that the first preset switching trigger condition of the fish-attracting state is met. By controlling the first adjustable water-blocking structure to be in the first state and the second adjustable water-blocking structure to be in the second state, the water flow range of the inlet of the fish-gathering area is smaller than the water flow range of the outlet of the fish-gathering area, so that the fish-gathering area adjustment device enters the fish-attracting state.
[0078] Optionally, the next operating state is the fish gathering state, and the control module 1003 is specifically used to: if the number of the first fish is less than the first preset threshold and the number of the second fish is greater than or equal to the second preset threshold, then determine that the second preset switching trigger condition of the fish gathering state is met. By controlling both the first adjustable water-blocking structure and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish-collecting area is maintained, and the water flow range of the outlet of the fish-collecting area is increased, so that the fish-collecting area adjustment device enters the fish-collecting state.
[0079] Optionally, the next operating state is a temporary holding state, and the control module 1003 is specifically used to: if the number of the first fish is greater than or equal to the first preset threshold, then determine that the third preset switching trigger condition of the temporary holding state is met. By controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish collection area is smaller than the water flow range of the outlet of the fish collection area, so that the fish collection area adjustment device enters the temporary holding state.
[0080] The processing flow of each module in the device and the interaction flow between each module can be referred to the relevant descriptions in the above method embodiments, and will not be detailed here.
[0081] This application also provides a central control device. Figure 11 This is a schematic diagram of the structure of a central control device provided in an embodiment of this application, such as... Figure 11 As shown, the central control device includes a processor 1101 and a memory 1102, and optionally, a bus 1103. The memory 1102 stores machine-readable instructions executable by the processor 1101. When the central control device is running, the processor 1101 and the memory 1102 communicate via the bus 1103. When the machine-readable instructions are executed by the processor 1101, they represent the steps of the control method of the fish-gathering area adjustment device described above.
[0082] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the control method for the fish-gathering area adjustment device described above.
[0083] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems and devices described above can be referred to the corresponding processes in the method embodiments, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection can be through some communication interfaces; the indirect coupling or communication connection of devices or modules can be electrical, mechanical, or other forms.
[0084] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.
[0085] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.
Claims
1. A fish-collecting area adjustment device, characterized in that, The fish-gathering area adjustment device includes: a first adjustable water-blocking structure disposed at the inlet of the fish-gathering area, a second adjustable water-blocking structure disposed at the outlet of the fish-gathering area, a first fish monitoring device disposed within the fish-gathering area, and a second fish monitoring device disposed in the corresponding fish-attracting area of the fish-gathering area. Both the first adjustable water-blocking structure and the second adjustable water-blocking structure are connected to a central control device to adjust the water flow rate at the inlet and outlet of the fish-collecting area by adjusting the water flow range at the inlet and outlet of the fish-collecting area, respectively. Both the first fish monitoring device and the second fish monitoring device are connected to the central control equipment and are used to monitor fish in the fish collection area and the fish attraction area, respectively.
2. The apparatus according to claim 1, characterized in that, The entrance to the fish collection area is equipped with fish-blocking facilities.
3. The apparatus according to claim 1, characterized in that, The fish collection area adjustment device further includes: a diversion bypass channel disposed on one side of the fish collection area, the upper end of the diversion bypass channel being connected to the tailwater area at the entrance of the fish collection area, the lower end of the diversion bypass channel being connected to the outlet of the fish collection area, and fish blocking facilities being disposed at the lower end of the diversion bypass channel, at the boundary position between the diversion bypass channel and the fish collection area, and at the boundary position at the outlet of the fish collection area.
4. The apparatus according to claim 1, characterized in that, Both the first adjustable water-blocking structure and the second adjustable water-blocking structure are inflatable rubber dams, water-filled rubber dams, or movable baffles.
5. The apparatus according to claim 1, characterized in that, The first fish monitoring device is installed at the fish collection entrance of the fish collection area or in the fish passage monitoring channel at the fish collection entrance of the fish collection area.
6. The apparatus according to claim 1, characterized in that, The first fish monitoring device is an infrared sensor counter, an underwater camera, or a sonar imaging device, and the second fish monitoring device is a sonar imaging device.
7. A control method for a fish-collecting area adjustment device, characterized in that, The method is applied to the central control device in any of the fish collection area adjustment devices described in claims 1-6, and the method includes: Acquire the first fish monitoring data of the fish gathering area and the second fish monitoring data of the fish attraction area, respectively, monitored by the first fish monitoring device and the second fish monitoring device in the fish gathering area regulation device; Based on the first fish monitoring data and the second fish monitoring data, determine the number of the first fish in the fish gathering area and the number of the second fish in the fish attraction area, respectively; Based on the number of the first fish and the number of the second fish, determine whether the preset switching trigger condition for the next operating state is met; If the preset switching trigger condition for the next operating state is met, the first adjustable water-blocking structure and the second adjustable water-blocking structure in the fish collection area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish collection area, respectively, so that the fish collection area adjustment device switches to the next operating state.
8. The method according to claim 7, characterized in that, The next operating state is the fish-attracting state. If the preset switching trigger condition for the next operating state is met, the first and second adjustable water-blocking structures in the fish-gathering area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish-gathering area, respectively, so that the fish-gathering area adjustment device switches to the next operating state, including: If the number of the first fish is less than the first preset threshold and the number of the second fish is less than the second preset threshold, then the first preset switching trigger condition of the fish-attracting state is determined to be met. By controlling the first adjustable water-blocking structure to be in the first state and the second adjustable water-blocking structure to be in the second state, the water flow range of the inlet of the fish-gathering area is smaller than the water flow range of the outlet of the fish-gathering area, so that the fish-gathering area adjustment device enters the fish-attracting state.
9. The method according to claim 8, characterized in that, The next operating state is the fish gathering state. If the preset switching trigger condition for the next operating state is met, the first adjustable water-blocking structure and the second adjustable water-blocking structure in the fish gathering area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish gathering area, respectively, so that the fish gathering area adjustment device switches to the next operating state, including: If the number of the first fish is less than the first preset threshold, and the number of the second fish is greater than or equal to the second preset threshold, then the second preset switching trigger condition of the fish gathering state is determined to be met. By controlling both the first adjustable water-blocking structure and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish-collecting area is maintained, and the water flow range of the outlet of the fish-collecting area is increased, so that the fish-collecting area adjustment device enters the fish-collecting state.
10. The method according to claim 9, characterized in that, The next operating state is a temporary holding state. If the preset switching trigger condition for the next operating state is met, the first and second adjustable water-blocking structures in the fish collection area adjustment device are controlled to adjust the water flow range at the inlet and outlet of the fish collection area, respectively, so that the fish collection area adjustment device switches to the next operating state, including: If the number of the first fish is greater than or equal to the first preset threshold, then the third preset switching trigger condition for the temporary holding state is determined to be met. By controlling the first adjustable water-blocking structure to be in the second state and the second adjustable water-blocking structure to be in the first state, the water flow range of the inlet of the fish collection area is smaller than the water flow range of the outlet of the fish collection area, so that the fish collection area adjustment device enters the temporary holding state.