Fish blocking electric grid design and arrangement method based on water conservancy condition analysis

Abstract

The invention discloses a fish blocking electric grid design and arrangement method based on water conservancy condition analysis, and relates to the technical field of water conservancy project equipment. The fish blocking electric grid design and arrangement method based on water conservancy condition analysis comprises the following steps of obtaining a water conservancy condition change index, executing first arrangement regulation and control, obtaining a change trend similarity index and executing second arrangement regulation and control. The water conservancy condition change index is obtained through the water conservancy data and the reference water conservancy data, the water conservancy condition analysis index is obtained based on the water conservancy condition change index, and the water conservancy condition analysis index is compared with the water conservancy threshold value to judge whether to execute the first arrangement regulation or not; a change trend similarity index is obtained according to the water conservancy data and the historical water conservancy data, and is compared with a change trend threshold value to judge whether to execute second arrangement regulation or not, so that the effect of more accurately designing and arranging the fish blocking electric grid is achieved; the problem that in the prior art, water conservancy condition analysis is not accurate in the fish blocking electric grid design and arrangement process is solved.

Description

Technical Field

[0001] The invention relates to the field of water conservancy engineering equipment, and in particular to a method for designing and arranging fish intercepting electric fences based on water conservancy condition analysis. Background Art

[0002] With the widespread construction of water conservancy projects, especially in facilities such as dams, water diversion channels and pumping stations, how to effectively protect aquatic ecosystems has become an important issue. As an ecological protection device, fish-blocking electric fences guide or prevent fish from entering uncomfortable areas through electric fields, playing a key role in reducing fish from straying into and getting injured. Based on the analysis of water conservancy conditions, the design of fish-blocking electric fences needs to consider factors such as water flow velocity, water depth, and flow fluctuations to ensure their stability and effectiveness in complex water environments. At the same time, the electrode layout and electric field strength of the electric fence should be optimized in combination with the behavioral characteristics of different fish to avoid harm to non-target fish species. Through scientific design and layout, fish-blocking electric fences can not only effectively protect fish resources, but also ensure the safe operation of water conservancy facilities.

[0003] The existing fish intercepting electric fence technology mainly forms an electric field by setting electrodes in the water body to guide or prevent fish from entering a specific area. This technology has been widely used in dams, water diversion projects and fish protection facilities. During the design process, the electric field strength and electrode layout are often adjusted to ensure the effectiveness of the electric fence under different water depths and flow rates. However, the existing technology still faces many challenges in practical applications. For example, the uneven distribution of the electric field under different water conditions may cause the interception effect of the electric fence to be unstable. In addition, the effect of the electric fence will also be affected by changes in water flow. Therefore, the existing technology is gradually developing in the direction of intelligence and automation, using sensors to monitor water conditions in real time, dynamically adjust the electric field strength and layout, and improve the fish interception effect and system safety.

[0004] For example, the patent application with publication number: CN117926749A discloses an environmental change sensing fish blocking electric fence device and a method of use, comprising: an upper fish blocking plate, and two fixed plates are fixedly installed on both sides of the upper fish blocking plate. The advantages of the present invention are: when the buoyancy plate needs to be unfolded, the fixed sliding plate is aligned with the installation slide groove and the installation slide rail for sliding installation, so that the fixed sliding plate is installed inside the installation slide groove and the installation slide rail to complete the fixation, and when the buoyancy plate needs to be stored, the fixed sliding plate is slid out of the installation slide rail, and the control block is pulled at the same time to drive the moving block to shrink into the moving groove, so that the storage block enters the storage groove, and then the pulling force on the control block is released, and the spring will push the moving block out of the moving groove and enter the storage block, and the position of the storage block is fixed, so that the buoyancy plate of the fish blocking electric fence can be stored and unfolded.

[0005] For example, the invention patent with announcement number: CN105672190B announces a fish-blocking warning cable structure in front of a reservoir dam, including: a warning cable structure, a reservoir surface floating structure, a fish-blocking electric grid structure and an effect observation system, the warning cable structure includes a main cable, an auxiliary cable, a supporting structure, a saddle and an anchor, the saddle is arranged on the top of the supporting structure, the main cable and the auxiliary cable are connected to the anchor through the saddle; the reservoir surface floating structure includes a floating object and its fixing bolts, the fixing bolts fix the floating object to the main cable and the auxiliary cable respectively; the fish-blocking electric grid structure is an electrode array arranged on the cross section of the fish-blocking warning cable to form an electric field; the effect observation system is a sonar or ultrasonic wave arranged on the main cable and the auxiliary cable, which is used to observe the fish-blocking effect of the fish-blocking warning cable cross section and the surrounding waters.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] In the prior art, under complex hydrological conditions, the electric fence design cannot adapt well to the actual water flow environment and take corresponding measures in a timely manner, and there is a problem of inaccurate analysis of water conditions during the design and layout of the fish intercepting electric fence. Summary of the invention

[0008] The embodiment of the present application solves the problem of inaccurate analysis of water conditions in the design and arrangement of fish-blocking electric fences in the prior art by providing a method for designing and arranging fish-blocking electric fences based on water conditions analysis, thereby achieving more accurate design and arrangement of fish-blocking electric fences.

[0009] The embodiment of the present application provides a method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis, comprising the following steps: obtaining a hydraulic condition change index by using hydraulic data acquired through hydraulic condition detection equipment and reference hydraulic data acquired from a preset database, and obtaining a hydraulic condition analysis index based on the hydraulic condition change index, wherein the hydraulic condition analysis index is used to quantify the applicability of an initial fish-blocking electric fence arrangement method; comparing the hydraulic condition analysis index with a hydraulic threshold acquired from a preset database to determine whether to perform a first arrangement regulation, wherein the first arrangement regulation indicates regulating the arrangement of the fish-blocking electric fence according to the changed hydraulic conditions; obtaining a change trend similarity index based on hydraulic data and historical hydraulic data, wherein the change trend similarity index is used to quantify the degree of convergence between the change trend of the hydraulic conditions and a preset extreme situation; comparing the change trend similarity index with the change trend threshold to determine whether to adopt a corresponding second arrangement regulation, wherein the second arrangement regulation indicates regulating the arrangement of the fish-blocking electric fence according to the extreme situation of the hydraulic conditions.

[0010] Furthermore, the water conservancy condition detection equipment includes a Doppler current meter, a radar water level gauge, a temperature recorder, a sediment monitor and a conductivity meter; the water conservancy data includes water flow velocity, water depth, water temperature, water turbidity and water conductivity.

[0011] Furthermore, the specific acquisition process of the water conservancy condition change index is as follows: obtain a preset number of water conservancy data at preset time points in real time, and number the preset time points; compare the water flow velocity at the preset time point with the reference water flow velocity interval obtained from the preset database, if the water flow velocity at the preset time point belongs to the reference water flow velocity interval, then obtain the water velocity index according to the water flow velocity at the preset time point and the reference water flow velocity interval, otherwise the corresponding water velocity index is recorded as 1, the reference water flow velocity interval includes a minimum water flow velocity and a maximum water flow velocity, and the water velocity index is the water flow velocity at the preset time point. The result of the hyperbolic tangent operation of the difference between the maximum water flow speed and the minimum water flow speed and the ratio of the difference between the maximum water flow speed and the minimum water flow speed. The water speed index is used to quantify the degree of change of the water flow speed corresponding to the preset time point; the water depth at the preset time point is compared with the initial water depth obtained from the preset database. If the water depth at the preset time point is not less than the initial water depth, the water depth deviation is obtained according to the water depth at the preset time point and the initial water depth, and the water depth index is obtained according to the water depth deviation. Otherwise, the corresponding water depth index is recorded as 0. The water depth index is the sum of the ratio of the difference between the water depth at the preset time point and the initial water depth and the initial water depth and 1. The result of logarithmic operation, the water depth index is used to quantify the degree of change of the water body depth corresponding to the preset time point; the water temperature at the preset time point is compared with the reference water temperature interval obtained from the preset database. If the water temperature at the preset time point belongs to the reference water temperature interval, the water temperature index is obtained according to the water temperature at the preset time point and the minimum water temperature and the maximum water temperature. Otherwise, the corresponding water temperature index is recorded as 1. The reference water temperature interval includes the minimum water temperature and the maximum water temperature. The water temperature index is the ratio of the difference between the water temperature at the preset time point and the minimum water temperature to the difference between the maximum water temperature and the minimum water temperature, and the hyperbolic tangent operation is performed. As a result, the water temperature index is used to quantify the degree of change of the water temperature at the corresponding preset time point; the water turbidity at the preset time point is compared with the water turbidity limit obtained from the preset database. If the water turbidity at the preset time point is not greater than the water turbidity limit, the water turbidity index is obtained according to the water turbidity at the preset time point and the water turbidity limit, otherwise the corresponding water turbidity index is recorded as 1. The water turbidity index is the result of a hyperbolic secant operation of the ratio of the difference between the water turbidity limit and the water turbidity at the preset time point to the water turbidity limit. The water turbidity index is used to quantify the degree of change of the water turbidity at the corresponding preset time point;The water body conductivity at a preset time point is compared with the reference conductivity interval obtained from a preset database. If the water body conductivity at the preset time point belongs to the reference conductivity interval, a conductivity index is obtained according to the water body conductivity at the preset time point and the minimum conductivity value and the maximum conductivity value. Otherwise, the corresponding conductivity index is recorded as 1. The reference conductivity interval includes the minimum conductivity value and the maximum conductivity value. The conductivity index is the result of a hyperbolic tangent operation of the ratio of the difference between the water body conductivity at the preset time point and the minimum conductivity value to the difference between the maximum conductivity value and the minimum conductivity value. The conductivity index is used to quantify the degree of change of the water body conductivity at the corresponding preset time point. The reference water conservancy data includes a reference water flow velocity interval, an initial water depth, a reference water temperature interval, a water body turbidity limit and a reference conductivity interval. The water conservancy condition change index includes a water velocity index, a water depth index, a water temperature index, a water turbidity index and a conductivity index. ;

[0012] Furthermore, the method for deriving the water conservancy condition analysis index according to the water conservancy condition change index is as follows: obtaining the water conservancy condition change weight corresponding to the water conservancy condition change index from a preset database, wherein the water conservancy condition change weight includes water velocity weight, water depth weight, water temperature weight, water turbidity weight and conductivity weight; summing the product operation result of the water conservancy condition change index and the water conservancy condition change weight to obtain the total value of the index change, performing hyperbolic secant operation and exponential operation on the total value of the index change to obtain the water conservancy condition analysis index, and the numerical expression of the water conservancy condition analysis index is as follows:

[0013]

[0014] In the formula, Indicates the water speed index at the nth preset time point, Indicates the water depth index at the nth preset time point, Indicates the water temperature index at the nth preset time point, Indicates the water turbidity index at the nth preset time point, represents the conductivity index at the nth preset time point, γ 1 represents the water velocity weight, γ 2 represents the water depth weight, γ 3 represents the water temperature weight, γ 4 represents the water turbidity weight, γ 5 Represents the conductivity weight, WAI n It represents the water condition analysis index at the nth preset time point, and e represents a natural constant.

[0015] Furthermore, the specific process of comparing the hydraulic condition analysis index with the hydraulic threshold value obtained from a preset database to determine whether to execute the first arrangement regulation is: if the hydraulic condition analysis index is less than the hydraulic threshold value, the fish blocking electric fence arrangement regulation is not executed; if the hydraulic condition analysis index is not less than the hydraulic threshold value, the first arrangement regulation is adopted; the specific process of adopting the first arrangement regulation is: comparing the water depth with the initial water depth: if the water depth is greater than the initial water depth, increasing the height of the fish blocking electric fence electrode and reducing the spacing between the fish blocking electric fence electrodes; if the water depth is not greater than the initial water depth, reducing the spacing between the fish blocking electric fence electrodes.

[0016] Furthermore, the specific process of increasing the height of the fish-blocking electric grid electrode is as follows: obtaining the water depth and the initial water depth, the initial water depth representing the water depth at the first preset time point; performing a difference operation between the water depth at the preset time point and the initial water depth to obtain a water depth difference, the water depth difference representing the difference between the water depth and the initial water depth; and increasing the height of the fish-blocking electric grid electrode at the corresponding preset time point according to the height corresponding to the water depth difference.

[0017] Furthermore, the specific steps of reducing the spacing between the electrodes of the fish-blocking electric grid are as follows: step one, obtaining a target electric field strength, wherein the target electric field strength represents the tolerable electric field strength of the fish obtained by consulting literature; step two, substituting the target electric field strength and the electric grid supply voltage into the electric field strength formula to obtain a target electrode spacing; step three, performing a difference operation between the current electrode spacing and the target electrode spacing to obtain a reduced spacing between the electrodes of the fish-blocking electric grid.

[0018] Furthermore, the process of obtaining the change trend similarity index is as follows: obtain the historical water conservancy data and the interval duration between the preset time points from the preset database, and classify and number the historical water conservancy data according to the category of extreme situations, and the duration of the interval duration is the same; obtain a preset number of water conservancy data and historical water conservancy data at preset time points, and number the preset time points; classify and number the water conservancy data and the corresponding historical water conservancy data according to the data category; obtain the historical water conservancy data evaluation value of each type of historical water conservancy data based on the historical water conservancy data and the interval duration; obtain the real-time water conservancy data evaluation value of each type of water conservancy data based on the water conservancy data and the interval duration; perform an absolute value operation on the difference operation result between the historical water conservancy data evaluation value and the real-time water conservancy data evaluation value to obtain the evaluation difference, and perform statistics on the evaluation differences of all categories of water conservancy data and the corresponding historical water conservancy data at all preset time points to obtain the sum of the evaluation differences; perform a ratio operation on the sum of the evaluation differences and the number corresponding to the evaluation differences to obtain the average evaluation difference, and obtain the change trend similarity index based on the average evaluation difference.

[0019] Furthermore, the specific process of comparing the change trend similarity index with the change trend threshold to determine whether to adopt the corresponding second arrangement regulation is as follows: comparing the flood trend similarity index with the flood threshold, if the flood trend similarity index is greater than the flood threshold, the second arrangement regulation is not performed, otherwise the spacing of the fish blocking electric fence electrodes is shortened; comparing the drought trend similarity index with the drought threshold, if the drought trend similarity index is greater than the drought threshold, the second arrangement regulation is not performed, otherwise the length of the sling is extended until the fish blocking electric fence electrodes are completely submerged in the water; comparing the freezing trend similarity index with the freezing threshold, if the freezing trend similarity index is greater than the freezing threshold, the second arrangement regulation is not performed. The second arrangement control is performed, otherwise the heating device is enabled; the high temperature trend similarity index is compared with the high temperature threshold, if the high temperature trend similarity index is greater than the high temperature threshold, the second arrangement control is not performed, otherwise the heat dissipation device is enabled; the typhoon trend similarity index is compared with the typhoon threshold, if the typhoon trend similarity index is greater than the typhoon threshold, the second arrangement control is not performed, otherwise the automatic power-off device is enabled; the change trend threshold includes a flood threshold, a drought threshold, a freezing threshold, a high temperature threshold and a typhoon threshold; the change trend similarity index includes a flood trend similarity index, a drought trend similarity index, a freezing trend similarity index, a high temperature trend similarity index and a typhoon trend similarity index.

[0020] Furthermore, if the first arrangement control and the second arrangement control are executed simultaneously, the second arrangement control is executed first and an early warning reminder is issued to the preset staff; the early warning reminder includes a command reminder, a visual reminder and an auditory reminder.

[0021] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0022] 1. A water conservancy condition change index is obtained through water conservancy data and reference water conservancy data, and a water conservancy condition analysis index is obtained based on the water conservancy condition change index. Then, the water conservancy condition analysis index is compared with the water conservancy threshold to determine whether to execute the first arrangement regulation. At the same time, a change trend similarity index is obtained based on the water conservancy data and historical water conservancy data. The change trend similarity index is compared with the change trend threshold to determine whether to adopt the corresponding second arrangement regulation, thereby achieving effective response to changeable water conservancy conditions, and then achieving more accurate design and layout of fish intercepting electric fences, effectively solving the problem of inaccurate water conservancy condition analysis in the design and layout of fish intercepting electric fences in the prior art.

[0023] 2. By obtaining the water conservancy condition change index and the corresponding water conservancy condition change weight, and summing the product of the water conservancy condition change index and the water conservancy condition change weight to obtain the total index change value, and then performing hyperbolic secant operation and exponential operation on the total index change value to obtain the water conservancy condition analysis index, a more accurate judgment of executing the first arrangement control is achieved, and then real-time monitoring of changes in water conservancy conditions and timely adoption of corresponding measures are achieved.

[0024] 3. The target electrode spacing is obtained by substituting the acquired target electric field strength and the grid supply voltage into the electric field strength formula, and the current electrode spacing is subtracted from the target electrode spacing to reduce the spacing of the fish-blocking grid electrodes, thereby accurately increasing the electric field strength and achieving a more accurate design and layout of the fish-blocking grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flow chart of a method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the changes in the water condition analysis index provided in the embodiment of the present application. DETAILED DESCRIPTION

[0027] The embodiment of the present application solves the problem of inaccurate analysis of hydraulic conditions during the design and arrangement of fish-blocking electric fences in the prior art by providing a method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis. A hydraulic condition change index is obtained by comparing hydraulic data acquired by a hydraulic condition detection device with reference hydraulic data acquired from a preset database, and a hydraulic condition analysis index is obtained based on the hydraulic condition change index. The hydraulic condition analysis index is then compared with a hydraulic threshold acquired from the preset database to determine whether to execute a first arrangement regulation. Subsequently, a change trend similarity index is obtained based on the hydraulic data and historical hydraulic data. The change trend similarity index is compared with the change trend threshold to determine whether to adopt a corresponding second arrangement regulation, thereby achieving more accurate design and arrangement of fish-blocking electric fences.

[0028] The technical solution in the embodiment of the present application is to solve the problem of inaccurate analysis of water conditions during the design and arrangement of the above-mentioned fish blocking electric fence. The overall idea is as follows:

[0029] By comparing the obtained water condition analysis index with the water threshold to determine whether to execute the first layout regulation, and at the same time comparing the obtained change trend similarity index with the change trend threshold to determine whether to execute the second layout regulation, a more accurate effect of designing and arranging fish intercepting electric fences is achieved.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 As shown, it is a flow chart of a method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis provided in an embodiment of the present application, the method comprising the following steps: obtaining a hydraulic condition change index by using hydraulic data acquired through hydraulic condition detection equipment and reference hydraulic data acquired from a preset database, and obtaining a hydraulic condition analysis index based on the hydraulic condition change index, the hydraulic condition analysis index being used to quantify the applicability of an initial method for arranging fish-blocking electric fences; comparing the hydraulic condition analysis index with a hydraulic threshold acquired from a preset database to determine whether to perform a first arrangement regulation, the first arrangement regulation indicating that the arrangement of the fish-blocking electric fences is regulated according to the changed hydraulic conditions; obtaining a change trend similarity index based on hydraulic data and historical hydraulic data, the change trend similarity index being used to quantify the degree of convergence between the change trend of the hydraulic conditions and a preset extreme situation; comparing the change trend similarity index with the change trend threshold to determine whether to adopt a corresponding second arrangement regulation, the second arrangement regulation indicating that the arrangement of the fish-blocking electric fences is regulated according to the extreme situation of the hydraulic conditions.

[0032] In this embodiment, extreme situations represent common natural disasters and natural phenomena that affect the operation of fish intercepting electric fences, including floods, droughts, freezing, high temperatures and typhoons. Through automated data analysis and regulation, the impact of human factors on water conservancy condition analysis is reduced, and the efficiency and accuracy of management are improved. In addition, the comprehensive use of the water conservancy condition change index and the change trend similarity index can provide powerful data support for preset staff to make scientific and reasonable regulation decisions, thereby achieving more accurate design and layout of fish intercepting electric fences.

[0033] Among them, water conservancy condition detection equipment includes Doppler flowmeter, radar water level gauge, temperature recorder, sediment monitor and conductivity meter; water conservancy data includes water flow velocity, water depth, water temperature, water turbidity and water conductivity.

[0034] Specifically, the Doppler flow meter measures water flow velocity based on the Doppler effect. The Doppler flow meter transmits sound waves to the water body, and the sound waves are reflected back after encountering suspended particles in the water. According to the change of the reflected wave frequency (Doppler frequency shift), the Doppler current meter can calculate the speed of the water flow; the radar water level meter transmits microwave radar signals to the water surface. After the signal is reflected back, the radar water level meter calculates the height of the water surface by measuring the time difference between transmission and reception, and obtains the water depth by comparing the height of the water surface and the installation height of the radar water level meter; the temperature recorder is usually placed on the surface of the water body to record the temperature change of the water body in real time; the sediment monitor mainly measures the concentration of suspended particles in the water body through optical turbidity sensors or acoustic sensors to obtain the turbidity of the water body; the conductivity meter determines the conductivity of the water body by measuring the conductivity of dissolved ions in the water body; and the water conservancy data is collected once at each preset time point. The preset time point is set by the preset staff according to the specific situation. Through the combination of water conservancy conditions detection equipment, the water flow velocity, water depth, water temperature, water turbidity and water conductivity can be fully obtained, providing accurate data for the monitoring and analysis of water conservancy conditions.

[0035] It needs to be explained that the specific method of obtaining the water flow speed is as follows:

[0036]

[0037] It is important to understand that V represents the velocity of the water flow, and f d represents the Doppler frequency shift, f 0 Indicates the frequency of the emitted sound wave, V sound Indicates the speed of sound waves in water (usually around 1500 m / s).

[0038] It needs to be explained that the specific method of obtaining the water depth is as follows:

[0039]

[0040] It is important to understand that h water Indicates water depth, h device represents the installation height of the radar water level gauge, and c represents the propagation speed of radar waves in the air (about 3*10 8 m / s), t represents the time difference (in seconds) from the transmission to the reception of radar waves.

[0041] Furthermore, the specific acquisition process of the water conservancy condition change index is as follows: obtain the water conservancy data of a preset number of preset time points in real time, and number the preset time points; compare the water flow velocity at the preset time point with the reference water flow velocity interval obtained from the preset database. If the water flow velocity at the preset time point belongs to the reference water flow velocity interval, then the water velocity index is obtained according to the water flow velocity at the preset time point and the reference water flow velocity interval, otherwise the corresponding water velocity index is recorded as 1. The reference water flow velocity interval includes the minimum water flow velocity and the maximum water flow velocity. The water velocity index is the result of the hyperbolic tangent operation of the ratio of the difference between the water flow velocity at the preset time point and the minimum water flow velocity to the difference between the maximum water flow velocity and the minimum water flow velocity. The water velocity index is used to quantify the degree of change of the water flow velocity corresponding to the preset time point. The numerical expression of the water velocity index is as follows:

[0042]

[0043] Where n represents the number of the preset time point, n = 1, 2, ... N, N represents the total number of preset time points, V n Indicates the water flow velocity at the nth preset time point, V MIN Indicates the minimum water velocity, V MAX Indicates the maximum water flow velocity, Indicates the water speed index at the nth preset time point.

[0044] The water depth at the preset time point is compared with the initial water depth obtained from the preset database. If the water depth at the preset time point is not less than the initial water depth, the water depth deviation is obtained according to the water depth at the preset time point and the initial water depth, and the water depth index is obtained according to the water depth deviation. Otherwise, the corresponding water depth index is recorded as 0. The water depth index is the result of logarithmic operation of the sum of the ratio of the difference between the water depth at the preset time point and the initial water depth and the initial water depth and 1. The water depth index is used to quantify the degree of change of the water body depth corresponding to the preset time point. The numerical expression of the water depth index is as follows:

[0045]

[0046] Where D n Indicates the water depth at the nth preset time point, D 0 represents the initial water depth, Indicates the water depth index at the nth preset time point.

[0047] The water temperature at the preset time point is compared with the reference water temperature interval obtained from the preset database. If the water temperature at the preset time point belongs to the reference water temperature interval, the water temperature index is obtained according to the water temperature at the preset time point and the minimum and maximum water temperatures. Otherwise, the corresponding water temperature index is recorded as 1. The water temperature interval includes the minimum and maximum water temperatures. The water temperature index is the result of the hyperbolic tangent operation of the ratio of the difference between the water temperature at the preset time point and the minimum water temperature to the difference between the maximum and minimum water temperatures. The water temperature index is used to quantify the degree of change of the water body temperature corresponding to the preset time point. The numerical expression of the water temperature index is as follows:

[0048]

[0049] Where, T n Indicates the water temperature at the nth preset time point, T MIN Indicates the minimum water temperature, T MAX Indicates the maximum water temperature. Indicates the water temperature index at the nth preset time point.

[0050] The water turbidity at the preset time point is compared with the water turbidity limit obtained from the preset database. If the water turbidity at the preset time point is not greater than the water turbidity limit, the water turbidity index is obtained according to the water turbidity at the preset time point and the water turbidity limit. Otherwise, the corresponding water turbidity index is recorded as 1. The water turbidity index is the result of the hyperbolic secant operation of the ratio of the difference between the water turbidity limit and the water turbidity at the preset time point to the water turbidity limit. The water turbidity index is used to quantify the degree of change of the water turbidity at the corresponding preset time point. The numerical expression of the water turbidity index is as follows:

[0051]

[0052] In the formula, Z n Indicates the water turbidity at the nth preset time point, Z 0 Indicates the turbidity limit of water body. Indicates the water turbidity index at the nth preset time point.

[0053] The water body conductivity at the preset time point is compared with the reference conductivity interval obtained from the preset database. If the water body conductivity at the preset time point belongs to the reference conductivity interval, the conductivity index is obtained according to the water body conductivity at the preset time point and the minimum conductivity value and the maximum conductivity value. Otherwise, the corresponding conductivity index is recorded as 1. The conductivity interval includes the minimum conductivity value and the maximum conductivity value. The conductivity index is the result of the hyperbolic tangent operation of the ratio of the difference between the water body conductivity at the preset time point and the minimum conductivity value to the difference between the maximum conductivity value and the minimum conductivity value. The conductivity index is used to quantify the degree of change of the water body conductivity at the corresponding preset time point. The numerical expression of the conductivity index is as follows:

[0054]

[0055] A n Indicates the water conductivity at the nth preset time point, A MIN Indicates the minimum conductivity, A MAX represents the maximum value of conductivity, Indicates the conductivity index at the nth preset time point.

[0056] Among them, the reference water conservancy data include reference water flow velocity range, initial water depth, reference water temperature range, water turbidity limit and reference conductivity range; the water conservancy condition change index includes water velocity index, water depth index, water temperature index, water turbidity index and conductivity index.

[0057] In this embodiment, water velocity index, water depth index, water temperature index, water turbidity index and conductivity index are obtained through water conservancy data and reference water conservancy data, which provides convenience for the calculation of subsequent water conservancy condition analysis index. At the same time, a separate change analysis of each type of water conservancy data is conducive to obtaining a more accurate water conservancy condition change index, thereby obtaining a more accurate water conservancy condition analysis index.

[0058] In the formula, if the water flow velocity at the preset time point belongs to the reference water flow velocity interval, then as the water flow velocity increases, the water velocity index also increases; if the water depth at the preset time point is not less than the initial water depth, then as the water depth increases, the water depth index also increases; if the water temperature at the preset time point belongs to the reference water temperature interval, then as the water temperature increases, the water temperature index also increases; if the water turbidity at the preset time point is not greater than the water turbidity limit, then as the water turbidity increases, the water turbidity index also increases; if the water conductivity at the preset time point belongs to the reference conductivity interval, then as the water conductivity increases, the conductivity index also increases; when the water velocity index, water depth index, water temperature index, water turbidity index and conductivity index are larger, it indicates that it is more unfavorable to improve the fish interception efficiency of the fish interception electric fence, and by separately analyzing the water flow velocity, water depth, water temperature, water turbidity and water conductivity, it is conducive to more accurate analysis of water conservancy conditions, so as to more accurately adopt corresponding layout and regulation.

[0059] Specifically, the reference water flow velocity interval is obtained from a preset database. In a specific embodiment, the reference water flow velocity interval represents the water flow velocity range that makes the electric field distribution of the fish blocking electric fence uniform. By consulting the data, it can be found that the water flow velocity range that makes the electric field distribution of the fish blocking electric fence uniform is 0.3m / s to 1.0m / s. Therefore, the reference water flow velocity interval is [0.3m / s, 1.0m / s].

[0060] Specifically, the reference water temperature interval is obtained from a preset database. In a specific embodiment, the reference water temperature interval represents the water temperature range for which the electric field of the fish blocking electric fence is uniformly distributed. By consulting the data, it can be found that the water temperature range for which the electric field of the fish blocking electric fence is uniformly distributed is 5°C to 30°C. Therefore, the reference water flow velocity interval is [5°C, 30°C].

[0061] Specifically, the water turbidity limit is obtained from a preset database. In a specific embodiment, the water turbidity limit represents the maximum water turbidity for making the electric field distribution of the fish intercepting electric fence uniform. By consulting the data, it can be found that the maximum water turbidity for making the electric field distribution of the fish intercepting electric fence uniform is 100NTU, so the water turbidity limit is 100NTU.

[0062] Specifically, the reference conductivity interval is obtained from a preset database. In a specific embodiment, the reference conductivity interval represents a conductivity range for making the electric field distribution of the fish blocking electric fence uniform. By consulting the data, it can be found that the conductivity range for making the electric field distribution of the fish blocking electric fence uniform is 50μS / cm to 500μS / cm. Therefore, the reference water flow velocity interval is [50μS / cm, 500μS / cm].

[0063] Furthermore, the method for deriving the water conservancy condition analysis index according to the water conservancy condition change index is as follows: obtaining the water conservancy condition change weight corresponding to the water conservancy condition change index from a preset database, the water conservancy condition change weight including water velocity weight, water depth weight, water temperature weight, water turbidity weight and conductivity weight; summing the product operation results of the water conservancy condition change index and the water conservancy condition change weight to obtain the total value of the index change, performing hyperbolic secant operation and exponential operation on the total value of the index change to obtain the water conservancy condition analysis index, and the numerical expression of the water conservancy condition analysis index is as follows:

[0064]

[0065] In the formula, Indicates the water speed index at the nth preset time point, Indicates the water depth index at the nth preset time point, Indicates the water temperature index at the nth preset time point, Indicates the water turbidity index at the nth preset time point, represents the conductivity index at the nth preset time point, γ 1 represents the water velocity weight, γ 2 represents the water depth weight, γ 3 represents the water temperature weight, γ 4 represents the water turbidity weight, γ 5 Represents the conductivity weight, WAI n It represents the water condition analysis index at the nth preset time point, and e represents a natural constant.

[0066] In this embodiment, the algorithm combines the water conservancy condition change index and the water conservancy condition change weight for comprehensive analysis to obtain the water conservancy condition analysis index, and the water conservancy condition change indexes are independent of each other, and the water conservancy condition change indexes are negatively correlated with the water conservancy condition analysis index, as shown in the following example: Figure 2 As shown, it is a schematic diagram of the change of the water condition analysis index provided in the embodiment of the present application, from Figure 2 It can be seen that as the water conservancy condition change index gradually increases, the water conservancy condition analysis index gradually decreases, showing a linear change with a negative correlation. It can be seen that the larger the water conservancy condition change index is, the more unfavorable it is for the layout of fish-blocking electric fences. Therefore, the smaller the water conservancy condition analysis index is, the smaller the water conservancy condition analysis index is. By monitoring the relevant water conservancy data of water conservancy conditions, it is beneficial to respond to the impact of complex water conservancy conditions on the layout of fish-blocking electric fences in real time and increase the fish-blocking effect of fish-blocking electric fences.

[0067] Specifically, water velocity, water depth, water temperature, water turbidity and water conductivity also affect each other. For example, water velocity and water depth often affect water turbidity through physical effects, while water temperature affects chemical reaction rates and biological activities, which in turn affect water turbidity and water conductivity; and water temperature and water conductivity are usually positively correlated, and the increase in water turbidity is often accompanied by an increase in particulate matter in the water, which indirectly affects water conductivity.

[0068] Specifically, the water speed weight is the weight corresponding to the water speed index in the preset database, which represents the numerical value of the influence of the water speed index on the water condition analysis index. When used, the weight corresponding to the water speed index can be directly obtained from the preset database, and the corresponding relationship can be a pre-set mapping relationship. For example, the water speed index corresponding to the water flow velocity and the weight corresponding to the water condition analysis index preset in the preset database form a mapping set, and the real-time water speed index is input into the mapping set to obtain the corresponding weight, wherein the mapping relationship can be one-to-one or many-to-one. In this example, its value range is [0, 1].

[0069] Specifically, the water depth weight is the weight corresponding to the water depth index in the preset database, which represents the numerical value of the influence of the water depth index on the water condition analysis index. When used, the weight corresponding to the water depth index can be directly obtained from the preset database, and the corresponding relationship can be a pre-set mapping relationship. For example, the water depth index corresponding to the water depth and the weight corresponding to the water condition analysis index preset in the preset database form a mapping set, and the real-time water depth index is input into the mapping set to obtain the corresponding weight, wherein the mapping relationship can be one-to-one or many-to-one. In this example, its value range is [0, 1].

[0070] Specifically, the water temperature weight is the weight corresponding to the water temperature index in the preset database, which represents the numerical value of the influence of the water temperature index on the water condition analysis index. When used, the weight corresponding to the water temperature index can be directly obtained from the preset database, and the corresponding relationship can be a pre-set mapping relationship. For example, the water temperature index corresponding to the water temperature and the weight corresponding to the water condition analysis index preset in the preset database form a mapping set, and the real-time water temperature index is input into the mapping set to obtain the corresponding weight, wherein the mapping relationship can be one-to-one or many-to-one. In this example, its value range is [0, 1].

[0071] Specifically, the water turbidity weight is the weight corresponding to the water turbidity index in the preset database, which represents the numerical value of the influence degree of the water turbidity index on the water condition analysis index. When used, the weight corresponding to the water turbidity index can be directly obtained from the preset database, and the corresponding relationship can be a pre-set mapping relationship. For example, the water turbidity index corresponding to the water body turbidity and the weight corresponding to the water condition analysis index preset in the preset database form a mapping set, and the real-time water turbidity index is input into the mapping set to obtain the corresponding weight, wherein the mapping relationship can be one-to-one or many-to-one. In this example, its value range is [0, 1].

[0072] Specifically, in this example, the sum of the conductivity weight, the water velocity weight, the water depth weight, the water temperature weight, and the water turbidity weight is 1.

[0073] Furthermore, the specific process of comparing the hydraulic condition analysis index with the hydraulic threshold value obtained from a preset database to determine whether to execute the first arrangement and regulation is: if the hydraulic condition analysis index is less than the hydraulic threshold value, the fish blocking electric fence arrangement and regulation is not executed; if the hydraulic condition analysis index is not less than the hydraulic threshold value, the first arrangement and regulation is adopted; the specific process of adopting the first arrangement and regulation is: comparing the water depth with the initial water depth: if the water depth is greater than the initial water depth, increasing the height of the fish blocking electric fence electrode and reducing the spacing between the fish blocking electric fence electrodes; if the water depth is not greater than the initial water depth, reducing the spacing between the fish blocking electric fence electrodes.

[0074] In this embodiment, adaptive regulation of the fish intercepting electric fence is achieved through dual analysis of hydraulic conditions and water depth, ensuring that the layout method of the electric fence is optimized under different hydraulic environments, improving the effect of fish interception, reducing human intervention and increasing the response speed of the system.

[0075] Specifically, the water conservancy threshold is obtained from a preset database. In a specific embodiment, the water conservancy threshold represents the average value of the corresponding data set obtained by substituting historical water conservancy data into the numerical expression of the water conservancy condition analysis index.

[0076] Furthermore, the specific process of increasing the height of the fish-blocking electric grid electrode is as follows: obtaining the water depth and the initial water depth, the initial water depth representing the water depth at the first preset time point; performing a difference operation between the water depth at the preset time point and the initial water depth to obtain a water depth difference, the water depth difference representing the difference between the water depth and the initial water depth; increasing the height of the fish-blocking electric grid electrode at the corresponding preset time point according to the height corresponding to the water depth difference.

[0077] In this embodiment, through this automatic adjustment mechanism based on water depth changes, the fish intercepting electric fence can dynamically adjust the electrode height as the water level changes, thereby adapting to the electric field distribution requirements under different water depths; this method enhances the flexibility and automation level of the system, avoids the impact of water level changes on the electric fence effect, and at the same time reduces dependence on human intervention, ensuring that the interception efficiency of the electric fence is improved.

[0078] Furthermore, the specific steps for reducing the spacing of the fish-blocking electric grid electrodes are as follows: Step 1, obtaining the target electric field strength, the target electric field strength represents the tolerable electric field strength of the fish obtained by consulting literature; Step 2, substituting the target electric field strength and the electric grid supply voltage into the electric field strength formula to obtain the target electrode spacing; Step 3, performing a difference operation between the current electrode spacing and the target electrode spacing to obtain the reduced spacing of the fish-blocking electric grid electrodes.

[0079] In this embodiment, the electric field strength is ensured to be within the tolerance range of fish by automatically adjusting the electrode spacing, while enhancing the interception effect. Specific effects include: dynamic adjustment: based on real-time calculation and difference operation, the electrode spacing can be accurately adjusted to maintain the target electric field strength and adapt to different environments and power supply conditions; fish protection: the target electric field strength is based on the tolerance of fish to ensure that no harm is caused to fish during the adjustment process; improved interception efficiency: by adaptively adjusting the electrode spacing, the fish interception electric fence can maintain the interception effect under different water depths or voltage conditions, thereby enhancing the automation and effectiveness of the entire electric fence system. This method can respond to environmental changes in real time to ensure that the electric fence is always in the best working condition.

[0080] Specifically, the electric field strength formula is as follows:

[0081]

[0082] Where V represents the transmission voltage of the fish blocking electric fence, d represents the electrode spacing, and E represents the target electric field strength.

[0083] Furthermore, the process of obtaining the change trend similarity index is as follows: obtain the interval time between historical water conservancy data and preset time points from a preset database, and classify and number the historical water conservancy data according to the category of extreme cases, and the interval time is the same; obtain a preset number of water conservancy data and historical water conservancy data at preset time points, and number the preset time points; classify and number the water conservancy data and the corresponding historical water conservancy data according to the data category; obtain the historical water conservancy data evaluation value of each type of historical water conservancy data based on the historical water conservancy data and the interval time; obtain the real-time water conservancy data evaluation value of each type of water conservancy data based on the water conservancy data and the interval time; perform an absolute value operation on the difference operation result between the historical water conservancy data evaluation value and the real-time water conservancy data evaluation value to obtain the evaluation difference, and perform statistics on the evaluation difference of all categories of water conservancy data and the corresponding historical water conservancy data at all preset time points to obtain the sum of the evaluation differences; perform a ratio operation on the sum of the evaluation differences and the number corresponding to the evaluation differences to obtain the average evaluation difference, and obtain the change trend similarity index based on the average evaluation difference. The change trend similarity index is obtained by the following method:

[0084]

[0085] In the formula, g represents the classification number of historical water conservancy data, g = 1, 2, 3, 4, 5, n represents the preset time point number, n = 1, 2, ... N, N represents the preset number of preset time points, i represents the category number of water conservancy data, i = 1, 2, 3, 4, 5, represents the i-th category of water conservancy data in the historical water conservancy data at the n+1th preset time point, represents the i-th category of water conservancy data in the historical water conservancy data at the n-th preset time point, represents the i-th type of water conservancy data in the water conservancy data at the n+1-th preset time point, represents the i-th type of water conservancy data in the water conservancy data at the n-th preset time point, Δt represents the interval length, CSI g Represents the similarity index of the changing trend of the g-th category of historical water conservancy data.

[0086] In this embodiment, the algorithm combines historical water conservancy data, water conservancy data and interval time for comprehensive analysis to obtain the similarity coefficient of the change trend. PGC represents the sum of evaluation differences, where as the sum of evaluation differences increases, the value of the change trend similarity coefficient becomes larger, and the two are positively correlated. The larger the value of the change trend similarity coefficient, the greater the difference between the water conservancy data and the historical water conservancy data, and the smaller the possibility that the change trend tends to extreme situations. This method can effectively identify the change trends of historical water conservancy data and real-time water conservancy data, and provide the preset staff with a change trend similarity index as a decision-making reference; at the same time, this method helps to improve the response speed of fish intercepting electric fences to emergencies, so that the preset staff can take countermeasures as soon as possible; and by classifying data based on extreme situations, it can flexibly adapt to different water conservancy conditions (such as floods, droughts, etc.), and better predict similar situations based on historical extreme events; the method provided in the embodiment of the present application can provide a quantitative evaluation of water conservancy conditions, and enhance the real-time response capability and data analysis effect of fish intercepting electric fences in different scenarios.

[0087] It should be explained that when i=1, the category of water conservancy data is water flow velocity, when i=2, the category of water conservancy data is water depth, when i=3, the category of water conservancy data is water temperature, when i=4, the category of water conservancy data is water turbidity, and when i=5, the category of water conservancy data is water conductivity.

[0088] Specifically, as shown in Table 1, it is a data change table of the change trend similarity coefficient, which is as follows:

[0089] Table 1 Data change table of similarity coefficient of change trend

[0090]

[0091]

[0092] It can be seen from Table 1 that when the sum of the evaluation differences is larger and the corresponding preset number of preset time points is smaller, the change trend similarity coefficient is larger, indicating that the real-time water conservancy data change trend is less close to the change trend of extreme situations. For example, in the first and third rows of data in the table, when the preset number of preset time points in the first row increases from 10 in the first row to 15 in the third row, and the sum of the evaluation differences decreases from 60 in the first row to 50 in the third row, the corresponding change trend similarity coefficient decreases from 0.87 in the first row to 0.61 in the third row. It can be seen that the influence on the change trend similarity coefficient is not only the water conservancy data, but also the preset number of preset time points cannot be ignored. Blindly increasing or reducing the preset time points may affect the rationality of the evaluation change trend similarity coefficient. Therefore, when evaluating the change trend similarity coefficient, in addition to real-time monitoring of water conservancy data, the setting of the preset number of preset time points cannot be ignored, which helps to obtain a more objective change trend similarity coefficient, so as to take corresponding measures in time.

[0093] Furthermore, the specific process of comparing the change trend similarity index with the change trend threshold to determine whether to adopt the corresponding second arrangement regulation is as follows: comparing the flood trend similarity index with the flood threshold, if the flood trend similarity index is greater than the flood threshold, the second arrangement regulation is not performed, otherwise the spacing of the fish blocking electric fence electrodes is shortened; comparing the drought trend similarity index with the drought threshold, if the drought trend similarity index is greater than the drought threshold, the second arrangement regulation is not performed, otherwise the length of the sling is extended until the fish blocking electric fence electrodes are completely submerged in water; comparing the freezing trend similarity index with the freezing threshold, if the freezing trend similarity index is greater than the freezing threshold, the second arrangement regulation is not performed, otherwise the heating device is activated to ensure that the fish blocking electric fence electrodes are completely submerged in water. The waters near the pole will not be completely frozen; the high temperature trend similarity index is compared with the high temperature threshold. If the high temperature trend similarity index is greater than the high temperature threshold, the second arrangement control will not be executed, otherwise the heat dissipation device will be activated to prevent the fish intercepting electric fence from overheating and causing failure of the fish intercepting electric fence; the typhoon trend similarity index is compared with the typhoon threshold. If the typhoon trend similarity index is greater than the typhoon threshold, the second arrangement control will not be executed, otherwise the automatic power-off device will be activated to temporarily disable the fish intercepting electric fence; the change trend threshold includes flood threshold, drought threshold, freezing threshold, high temperature threshold and typhoon threshold; the change trend similarity index includes flood trend similarity index, drought trend similarity index, freezing trend similarity index, high temperature trend similarity index and typhoon trend similarity index.

[0094] In this embodiment, when g is 1, the changing trend similarity index is the flood trend similarity index, when g is 2, the changing trend similarity index is the drought trend similarity index, when g is 3, the changing trend similarity index is the freezing trend similarity index, when g is 4, the changing trend similarity index is the high temperature trend similarity index, and when g is 5, the changing trend similarity index is the typhoon trend similarity index; by comparing the changing trend similarity index with the changing trend threshold, the fish intercepting electric fence can automatically determine whether it is necessary to execute the second arrangement regulation, thereby ensuring that the fish intercepting electric fence equipment can be dynamically adjusted according to real-time conditions in various natural environment changes.

[0095] Specifically, the flood threshold is obtained from a preset database. In a specific embodiment, the flood threshold represents the average value of the corresponding data set obtained by substituting historical water conservancy data of flood situations into the method for obtaining the change trend similarity index.

[0096] Specifically, the drought threshold is obtained from a preset database. In a specific embodiment, the drought threshold represents the average value of the corresponding data set obtained by substituting historical water conservancy data of drought conditions into the method for obtaining the similarity index of the change trend.

[0097] Specifically, the freezing threshold is obtained from a preset database. In a specific embodiment, the freezing threshold represents the average value of the corresponding data set obtained by substituting historical water conservancy data of freezing conditions into the method for obtaining the change trend similarity index.

[0098] Specifically, the high temperature threshold is obtained from a preset database. In a specific embodiment, the high temperature threshold represents the average value of the corresponding data set obtained by substituting historical water conservancy data of high temperature conditions into the method for obtaining the change trend similarity index.

[0099] Specifically, the typhoon threshold is obtained from a preset database. In a specific embodiment, the typhoon threshold represents the average value of the corresponding data set obtained by substituting historical water conservancy data of typhoon conditions into the method for obtaining the change trend similarity index.

[0100] Furthermore, if the first arrangement control and the second arrangement control are executed at the same time, the second arrangement control shall be executed first and an early warning reminder shall be issued to the preset staff; the early warning reminder includes command reminder, visual reminder and auditory reminder; the command reminder is used to issue electric fence maintenance reminder or disaster evacuation reminder to the preset staff, the visual reminder is used to remind all preset staff to pay attention to personal safety when extreme situations are detected through flashing colored lights; the auditory reminder is used to remind all preset staff to pay attention to personal safety when extreme situations are detected through sound broadcast.

[0101] In this embodiment, the second arrangement and control is preferentially executed to ensure response to current environmental changes or disaster threats; while adopting the second arrangement and control, the fish intercepting electric fence design and layout method will automatically issue early warning reminders to the preset staff to ensure that the personnel can respond to potential extreme situations in a timely manner; the command reminder is used to remind the preset staff to perform equipment maintenance or take emergency risk avoidance measures to ensure the continuous operation of the equipment and the safety of personnel; the visual reminder directly indicates that the current system is in a dangerous state through changes in color lights or flashing signals, requiring the preset staff to remain highly alert and pay attention to personal safety; the auditory reminder is suitable for use in noisy environments to ensure that even if the visual reminder cannot be seen, the staff can quickly understand the emergency situation through sound; by combining these early warning reminders with the priority control method, the fish intercepting electric fence design and layout method can ensure that in extreme environments or disasters, the staff can receive warnings in time and take necessary countermeasures, thereby effectively reducing the damage to equipment and personnel in extreme situations.

[0102] To sum up, the embodiment of the present application obtains a water condition change index through water data and reference water data, and obtains a water condition analysis index based on the water condition change index, and then compares the water condition analysis index with the water threshold to determine whether to execute the first layout regulation. At the same time, a change trend similarity index is obtained based on the water data and historical water data, and the change trend similarity index is compared with the change trend threshold to determine whether to adopt the corresponding second layout regulation, thereby achieving effective response to changeable water conditions, and then achieving more accurate design and layout of fish intercepting electric fences, effectively solving the problem of inaccurate water condition analysis in the design and layout of fish intercepting electric fences in the prior art.

[0103] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0104] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0105] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0106] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0107] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0108] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for designing and arranging fish-blocking electric fences based on hydraulic conditions analysis, characterized in that: The following steps are involved: A water conservancy condition change index is obtained by using the water conservancy data obtained by the water conservancy condition detection device and the reference water conservancy data obtained from the preset database, and a water conservancy condition analysis index is obtained based on the water conservancy condition change index, wherein the water conservancy condition analysis index is used to quantify the applicability of the initial fish intercepting electric fence arrangement method; Comparing the hydraulic condition analysis index with a hydraulic threshold value obtained from a preset database to determine whether to perform a first arrangement regulation, wherein the first arrangement regulation indicates regulating the arrangement of the fish blocking electric fence according to the changed hydraulic condition; A change trend similarity index is derived based on the water conservancy data and the historical water conservancy data, wherein the change trend similarity index is used to quantify the degree of closeness between the change trend of the water conservancy conditions and the preset extreme conditions; The change trend similarity index is compared with the change trend threshold to determine whether to adopt a corresponding second arrangement regulation, wherein the second arrangement regulation indicates regulating the arrangement of the fish blocking electric fence according to the extreme situation of the water conservancy conditions.

2. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 1, characterized in that: The water conservancy condition detection equipment includes a Doppler current meter, a radar water level meter, a temperature recorder, a sediment monitor and a conductivity meter; The water conservancy data include water flow velocity, water depth, water temperature, water turbidity and water conductivity.

3. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 2, characterized in that: The specific process of obtaining the water conservancy condition change index is as follows: Acquire a preset number of water conservancy data at preset time points in real time, and number the preset time points; Compare the water flow velocity at a preset time point with a reference water flow velocity interval obtained from a preset database. If the water flow velocity at the preset time point belongs to the reference water flow velocity interval, obtain a water velocity index according to the water flow velocity at the preset time point and the reference water flow velocity interval. Otherwise, record the corresponding water velocity index as 1. The reference water flow velocity interval includes a minimum water flow velocity and a maximum water flow velocity. The water velocity index is the result of a hyperbolic tangent operation of the ratio of the difference between the water flow velocity at the preset time point and the minimum water flow velocity to the difference between the maximum water flow velocity and the minimum water flow velocity. The water velocity index is used to quantify the degree of change of the water flow velocity corresponding to the preset time point; The water depth at a preset time point is compared with the initial water depth obtained from a preset database. If the water depth at the preset time point is not less than the initial water depth, a water depth deviation is obtained according to the water depth at the preset time point and the initial water depth, and a water depth index is obtained according to the water depth deviation. Otherwise, the corresponding water depth index is recorded as 0. The water depth index is the result of a logarithmic operation of the sum of the ratio of the difference between the water depth at the preset time point and the initial water depth and the initial water depth and 1. The water depth index is used to quantify the degree of change in the water depth corresponding to the preset time point; The water temperature at the preset time point is compared with the reference water temperature interval obtained from the preset database. If the water temperature at the preset time point belongs to the reference water temperature interval, a water temperature index is obtained according to the water temperature at the preset time point and the minimum water temperature and the maximum water temperature. Otherwise, the corresponding water temperature index is recorded as 1. The reference water temperature interval includes the minimum water temperature and the maximum water temperature. The water temperature index is the result of a hyperbolic tangent operation of the ratio of the difference between the water temperature at the preset time point and the minimum water temperature to the difference between the maximum water temperature and the minimum water temperature. The water temperature index is used to quantify the degree of change of the water body temperature corresponding to the preset time point; Compare the water turbidity at a preset time point with the water turbidity limit obtained from a preset database. If the water turbidity at the preset time point is not greater than the water turbidity limit, obtain a water turbidity index according to the water turbidity at the preset time point and the water turbidity limit. Otherwise, record the corresponding water turbidity index as 1. The water turbidity index is the result of a hyperbolic secant operation of the ratio of the difference between the water turbidity limit and the water turbidity at the preset time point to the water turbidity limit. The water turbidity index is used to quantify the degree of change of the water turbidity at the corresponding preset time point; Compare the water body conductivity at a preset time point with a reference conductivity interval obtained from a preset database. If the water body conductivity at the preset time point belongs to the reference conductivity interval, obtain a conductivity index according to the water body conductivity at the preset time point and the minimum conductivity value and the maximum conductivity value. Otherwise, the corresponding conductivity index is recorded as 1. The reference conductivity interval includes the minimum conductivity value and the maximum conductivity value. The conductivity index is the result of a hyperbolic tangent operation of the ratio of the difference between the water body conductivity at the preset time point and the minimum conductivity value to the difference between the maximum conductivity value and the minimum conductivity value. The conductivity index is used to quantify the degree of change of the water body conductivity corresponding to the preset time point; The reference water conservancy data include reference water velocity interval, initial water depth, reference water temperature interval, water turbidity limit and reference conductivity interval; The water condition change index includes a water velocity index, a water depth index, a water temperature index, a water turbidity index and an electrical conductivity index.

4. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 3 is characterized by: The method for deriving the water conservancy condition analysis index according to the water conservancy condition change index is: Acquire the water conservancy condition change weight corresponding to the water conservancy condition change index from a preset database, wherein the water conservancy condition change weight includes water velocity weight, water depth weight, water temperature weight, water turbidity weight and conductivity weight; The product of the water conservancy condition change index and the water conservancy condition change weight is summed to obtain the total value of the index change, and the total value of the index change is subjected to hyperbolic secant operation and exponential operation to obtain the water conservancy condition analysis index. The numerical expression of the water conservancy condition analysis index is as follows: In the formula, Indicates the water speed index at the nth preset time point, Indicates the water depth index at the nth preset time point, Indicates the water temperature index at the nth preset time point, Indicates the water turbidity index at the nth preset time point, represents the conductivity index at the nth preset time point, γ1 represents the water velocity weight, γ2 represents the water depth weight, γ3 represents the water temperature weight, γ4 represents the water turbidity weight, γ5 represents the conductivity weight, WAI n It represents the water condition analysis index at the nth preset time point, and e represents a natural constant.

5. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 4, characterized in that: The specific process of comparing the water condition analysis index with the water threshold value obtained from the preset database to determine whether to perform the first arrangement regulation is: If the water condition analysis index is less than the water threshold, the fish intercepting electric fence arrangement control will not be implemented; If the water condition analysis index is not less than the water threshold, the first arrangement control is adopted; The specific process of adopting the first arrangement regulation is: Compare the water depth to the initial water depth: If the water depth is greater than the initial water depth, the height of the fish blocking electric fence electrodes is increased and the spacing between the fish blocking electric fence electrodes is reduced; If the water depth is not greater than the initial water depth, the spacing between the electrodes of the fish blocking electric fence is reduced.

6. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 5, characterized in that: The specific process of increasing the height of the fish blocking electric fence electrode is as follows: Acquire water depth and initial water depth, wherein the initial water depth represents the depth of the water body at a first preset time point; Performing a difference calculation on the water depth at a preset time point and the initial water depth to obtain a water depth difference, wherein the water depth difference represents the difference between the water depth and the initial water depth; The height of the fish blocking electric fence electrode within the corresponding preset time point is increased according to the height corresponding to the water depth difference.

7. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 5, characterized in that: The specific steps of reducing the spacing between the fish blocking electric fence electrodes are as follows: Step 1, obtaining a target electric field strength, wherein the target electric field strength represents the tolerable electric field strength of fish obtained by consulting literature; Step 2: Substitute the target electric field strength and the grid supply voltage into the electric field strength formula to obtain the target electrode spacing; Step three, performing a difference operation between the current electrode spacing and the target electrode spacing to obtain a spacing of the electrodes of the fish blocking electric grid that is reduced.

8. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 1, characterized in that: The process of obtaining the change trend similarity index is as follows: Obtain historical water conservancy data and the interval durations between preset time points from a preset database, and classify and number the historical water conservancy data according to the categories of extreme situations, wherein the interval durations are all the same; Obtaining a preset number of water conservancy data and historical water conservancy data at preset time points, and numbering the preset time points; Classify and number water conservancy data and corresponding historical water conservancy data according to data categories; Based on the historical water conservancy data and the interval time, the historical water conservancy data evaluation value of each type of historical water conservancy data is obtained; Based on the water conservancy data and the interval time, the real-time water conservancy data evaluation value of each type of water conservancy data is obtained; An absolute value operation is performed on the difference operation result between the historical water conservancy data evaluation value and the real-time water conservancy data evaluation value to obtain the evaluation difference, and the evaluation difference of all categories of water conservancy data and the corresponding historical water conservancy data at all preset time points is statistically analyzed to obtain the total evaluation difference; The sum of the evaluation differences is ratioed to the number corresponding to the evaluation differences to obtain the average evaluation difference, and the change trend similarity index is obtained based on the average evaluation difference.

9. The method for designing and arranging fish-blocking electric fences based on hydraulic condition analysis as claimed in claim 8, characterized in that: The specific process of comparing the change trend similarity index with the change trend threshold to determine whether to adopt the corresponding second arrangement control is as follows: The flood trend similarity index is compared with the flood threshold value, if the flood trend similarity index is greater than the flood threshold value, the second arrangement regulation is not performed, otherwise the spacing between the electrodes of the fish blocking electric fence is shortened; The drought trend similarity index is compared with the drought threshold value. If the drought trend similarity index is greater than the drought threshold value, the second arrangement control is not performed, otherwise the length of the sling is extended until the fish blocking electric fence electrode is completely submerged in the water; Comparing the freezing trend similarity index with the freezing threshold, if the freezing trend similarity index is greater than the freezing threshold, not executing the second arrangement control, otherwise activating the heating device; Comparing the high temperature trend similarity index with the high temperature threshold, if the high temperature trend similarity index is greater than the high temperature threshold, not executing the second arrangement regulation, otherwise enabling the heat dissipation device; Compare the typhoon trend similarity index with the typhoon threshold, if the typhoon trend similarity index is greater than the typhoon threshold, then do not perform the second arrangement control, otherwise enable the automatic power-off device; The change trend thresholds include flood thresholds, drought thresholds, freezing thresholds, high temperature thresholds and typhoon thresholds; The change trend similarity index includes a flood trend similarity index, a drought trend similarity index, a freezing trend similarity index, a high temperature trend similarity index and a typhoon trend similarity index.

10. The method for designing and arranging fish blocking electric fences based on hydraulic condition analysis as claimed in claim 1, further comprising: If the first arrangement control and the second arrangement control are executed at the same time, the second arrangement control will be executed first and a warning reminder will be issued to the preset staff; The early warning reminder includes instruction reminder, visual reminder and auditory reminder.

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