A river-type reservoir safety early warning method, device, equipment and medium

Abstract

The present invention relates to the field of water conservancy safety, and its purpose is to provide a river-type reservoir safety early warning method, device, equipment and medium, the method comprising: obtaining the flow change value, current water level, historical water level flow data, river section data, normal water storage level and flood control limit water level of the target reservoir; segmenting the target reservoir according to a preset distance to obtain multiple river sections; analyzing the roughness value corresponding to each river section at different heights; calculating the water level after the flow change of each river section to obtain the target water level; comparing the target water level with the preset safety early warning value to generate safety early warning information. The present invention segments the entire river channel, and vertically layers different river sections, and uses the corresponding historical water level flow data to calibrate the roughness parameters of different river sections at different layer heights, thereby improving the simulation accuracy and efficiency of the water level height after the flow change, so that the result of risk prediction based on the water level height has higher reliability.

Description

Technical Field

[0001] The present invention relates to the field of water conservancy safety, and in particular to a river-type reservoir safety early warning method, device, equipment and medium. Background Art

[0002] The reservoir dispatching process determines the discharge flow based on the incoming flow, current water level and downstream demand. It has high requirements for water level changes and usually uses hydrodynamic simulation results as the basis for judgment. Roughness reflects the obstruction of the river channel to the water flow and is an important parameter for hydrodynamic simulation. At present, with the rapid development of the upstream and downstream economies, shipping is becoming more and more frequent, which puts higher requirements on the daily dispatching of reservoirs. It is necessary to ensure the safety of production and living water and waterways in the upstream and downstream to maximize economic, social and ecological benefits. The existing roughness determination methods mostly use historical flood rates to determine the values. The advantage is that they are representative and can be directly used for water level calculations, but the numerical accuracy is low, which affects the reliability of risk prediction during reservoir dispatching. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a river-type reservoir safety early warning method, device, equipment and medium to solve the problems of low accuracy and poor reliability of risk prediction based on existing roughness values ​​in the prior art.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The embodiment of the present invention provides a river-type reservoir safety early warning method, comprising:

[0006] Obtain the flow change value, current water level, historical water level and flow data, river section data, normal water storage level and flood control limit water level of the target reservoir;

[0007] Dividing the target reservoir into sections according to preset distances to obtain multiple river sections;

[0008] Analyze the roughness value corresponding to each river section at different heights according to the normal water storage level, flood control limit water level, the historical water level and flow data, and river section data;

[0009] The target water level is obtained by calculating the water level of each river section after the flow change through the flow change value, the current water level and the roughness value corresponding to each river section at different heights;

[0010] The target water level is compared with a preset safety warning value to generate safety warning information.

[0011] Optionally, the analyzing the roughness value corresponding to each river section at different heights according to the normal water storage level, the flood control limit water level, the historical water level and flow data, and the river section data includes:

[0012] Carrying out stratified treatment of the river section according to the normal water storage level and the flood control limit water level;

[0013] The roughness value of each river section at different water levels is analyzed based on the historical water level flow data and the river section data.

[0014] Optionally, the analyzing the roughness value of each river section at different water levels based on the historical water level flow data and the river section data includes:

[0015] Extracting the flow data corresponding to different water levels of each river section from the historical water level and flow data;

[0016] The preset hydrodynamic model is inverted according to the flow data and river section data corresponding to different water levels to obtain the roughness value of each river section at different water levels.

[0017] Optionally, the layered processing of the river section according to the normal water storage level and the flood control limit water level includes:

[0018] Obtaining a water level difference through the normal water storage level and the flood control limit water level;

[0019] Obtaining the number of layers based on the water level difference and the preset layer height;

[0020] The river section is stratified according to the preset stratification height, the number of stratifications and the flood control limit water level.

[0021] Optionally, the target water level is obtained by calculating the water level of each river section after the flow change through the flow change value, the current water level and the roughness value corresponding to each river section at different heights, including:

[0022] Extracting a current roughness value corresponding to the current water level from the roughness values ​​corresponding to different heights;

[0023] The flow change value, the current water level and the current roughness value are input into a preset hydrodynamic model to obtain a target water level.

[0024] Optionally, the step of comparing the target water level with a preset safety warning value to generate safety warning information includes:

[0025] Comparing the target water level with a preset safety warning value to determine whether the target water level exceeds the preset safety warning value;

[0026] When the target water level exceeds a preset safety warning value, the river section corresponding to the target water level is marked as a dangerous river section, and the dangerous river section is reported.

[0027] Optionally, the method further includes:

[0028] Extracting the first elevation and the second elevation of the two ends of the corresponding section of each river section from the river section data;

[0029] comparing the target water level with the first elevation and the second elevation respectively;

[0030] When the target water level is greater than the first elevation and / or the second elevation, the water overflow position is determined according to the comparison result, and the overflow position is reported.

[0031] The embodiment of the present invention also provides a river-type reservoir safety early warning device, comprising:

[0032] The acquisition module is used to obtain the flow change value, current water level, historical water level and flow data, river section data, normal water storage level and flood control limit water level of the target reservoir;

[0033] A segmentation module, used to segment the target reservoir into multiple river sections according to preset distances;

[0034] An analysis module, used for analyzing the roughness value corresponding to each river section at different heights according to the normal water storage level, the flood control limit water level, the historical water level and flow data and the river section data;

[0035] A calculation module, used for calculating the water level after the flow change of each river section by using the flow change value, the current water level and the roughness value to obtain a target water level;

[0036] The comparison module is used to compare the target water level with a preset safety warning value to generate safety warning information.

[0037] An embodiment of the present invention further provides an electronic device, including:

[0038] A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the river-type reservoir safety early warning method provided by an embodiment of the present invention by executing the computer instructions.

[0039] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the river-type reservoir safety early warning method provided by the embodiment of the present invention.

[0040] The technical solution of the present invention has the following advantages:

[0041] The present invention provides a safety early warning method for river-type reservoirs, which obtains the flow change value, current water level, historical water level flow data, river section data, normal water storage level and flood control limit water level of the target reservoir; divides the target reservoir into sections according to a preset distance to obtain multiple river sections; analyzes the roughness value corresponding to each river section at different heights according to the normal water storage level, flood control limit water level, historical water level flow data and river section data; calculates the water level of each river section after the flow change through the flow change value, current water level and the roughness value corresponding to each river section at different heights to obtain the target water level; compares the target water level with the preset safety early warning value to generate safety early warning information. The present invention divides the entire river into sections, and vertically layers different river sections, and uses the corresponding historical water level flow data to calibrate the roughness parameters of different river sections at different layer heights, thereby improving the simulation accuracy and efficiency of the water level height after the flow change, so that the result of risk prediction based on the water level height has higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a flow chart of the river-type reservoir safety early warning method in an embodiment of the present invention;

[0044] Figure 2 A flowchart of analyzing the roughness value corresponding to each river section at different heights according to an embodiment of the present invention;

[0045] Figure 3 A flow chart for analyzing the roughness value of each river section at different water levels according to an embodiment of the present invention;

[0046] Figure 4 is a flow chart of performing layered processing on a river section according to an embodiment of the present invention;

[0047] Figure 5 A flow chart of calculating the target water level after the flow rate of each river section changes according to an embodiment of the present invention;

[0048] Figure 6 A flowchart of generating security warning information according to an embodiment of the present invention;

[0049] Figure 7 A flow chart of determining a water overflow position according to an embodiment of the present invention;

[0050] Figure 8 It is a structural schematic diagram of a river-type reservoir safety early warning device in an embodiment of the present invention;

[0051] Fig. 9 Schematic diagram of the structure of an electronic device in an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0053] According to an embodiment of the present invention, an embodiment of a river-type reservoir safety warning method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown here.

[0054] In this embodiment, a river-type reservoir safety early warning method is provided, which can be used for the above-mentioned terminal equipment, such as a computer, etc. Figure 1 As shown, the river-type reservoir safety early warning method includes the following steps:

[0055] Step S1: Obtain the flow change value, current water level, historical water level flow data, river section data, normal water storage level and flood control limit water level of the target reservoir. Specifically, the flood control limit water level is the upper limit water level allowed for water storage in the reservoir during the flood season, and is also the starting water level for flood control in the reservoir during the flood season; the normal water storage level is the highest water level allowed for water storage in the reservoir under normal operation.

[0056] Step S2: Divide the target reservoir into multiple river sections according to the preset distance. Specifically, the river sections are divided to make subsequent analysis more targeted and to facilitate the location of specific locations. The river sections can also be divided according to specific terrain or geographical data for specific analysis, which is not specifically limited here.

[0057] Step S3: Analyze the roughness values ​​corresponding to each river section at different heights according to the normal water storage level, flood control limit water level, historical water level flow data and river section data. Specifically, the roughness value can reflect the roughness of the river surface, thereby inferring the water flow inside the river. Analyzing the roughness values ​​corresponding to each river section at different heights facilitates the subsequent rapid inference of water level changes based on flow changes, thereby improving efficiency.

[0058] Step S4: Calculate the water level of each river section after the flow change by using the flow change value, the current water level and the roughness value corresponding to each river section at different heights to obtain the target water level. Specifically, the roughness value based on the above analysis can quickly calculate the water level of each river section after the flow change based on the current water level and flow change.

[0059] Step S5: Compare the target water level with the preset safety warning value to generate safety warning information. Specifically, when the target water level exceeds the preset safety warning value, it indicates that there may be an overflow risk in the river channel, and safety warning information is generated in time to facilitate the dispatching personnel to make adjustments in advance.

[0060] Through the above steps S1 to S5, the river-type reservoir safety early warning method provided by the embodiment of the present invention divides the entire river channel into sections, and vertically layers different river sections, and uses the corresponding historical water level flow data to calibrate the roughness parameters of different river sections at different layer heights, thereby improving the simulation accuracy and efficiency of the water level height after the flow change, and making the risk prediction results based on the water level height more reliable.

[0061] Specifically, in one embodiment, the above step S3, as Figure 2 As shown, the specific steps include:

[0062] Step S31: Layer the river section according to the normal water storage level and the flood control limit water level. Specifically, the river section is layered according to the range of water level fluctuation in front of the dam (the range between the normal water storage level and the flood control limit water level), for example: each layer is 0.25m wide, and the specific actual layer distance can be adjusted according to the actual needs of the reservoir. If the water level fluctuation is strictly required, the width of each layer can be reduced to improve the calculation accuracy.

[0063] Step S32: Analyze the roughness value of each river section at different water levels based on the historical water level flow data and the river section data. Specifically, by analyzing the historical water level flow data, the roughness value of each river section at different water levels can be obtained, and the roughness value can be stored by establishing a database for subsequent search.

[0064] Specifically, in one embodiment, the above step S31 is as follows: Figure 3 As shown, the specific steps include:

[0065] Step S311: Obtain the water level difference through the normal water storage level and the flood control limit water level.

[0066] Step S312: obtaining the number of layers based on the water level difference and the preset layer height.

[0067] Step S313: The river section is layered according to the preset layer height, layer number and flood control limit water level. Specifically, the flood control limit water level is usually below the normal water storage level, and the daily water level is basically between the flood control limit water level and the normal water storage level. By layering this range, it meets the actual application of most reservoirs, and through layering, the data analysis is more accurate. In the subsequent analysis process, it can be directly matched according to the current water level height to improve the analysis speed.

[0068] Specifically, in one embodiment, the above step S32 is as follows: Figure 4 As shown, the specific steps include:

[0069] Step S321: extracting the flow data corresponding to each river section at different water level heights from the historical water level flow data.

[0070] Step S322: Perform data inversion on the preset hydrodynamic model according to the flow data and river section data corresponding to different water levels to obtain the roughness value of each river section at different water levels.

[0071] Specifically, the preset hydrodynamic model is a one-dimensional hydrodynamic model, and there are N river sections, among which

[0072] The hydrodynamic equation for the ith river section is:

[0073] Continuity equation for water flow:

[0074] The equation of motion for water flow is:

[0075] Among them, t represents time, x represents space, B represents water surface width, Z represents water level, Q represents flow rate, and q represents water volume. L is the lateral inflow flow on the river section, u is the average flow velocity of the section, g is the gravitational acceleration, A is the cross-sectional area of ​​the water flow, and n i is the roughness value of the ith river section, which needs to be selected according to the water level, and R is the hydraulic radius.

[0076] By inverting the parameters of the above model through the water level and flow data of each river section at different water levels, the roughness value of the river section at different water levels can be obtained, which has high numerical accuracy and can improve the accuracy of subsequent water flow simulation. A database of the roughness values ​​of each river section at different water levels can be established to facilitate data extraction in subsequent analysis, effectively improving analysis efficiency.

[0077] Specifically, in one embodiment, the above step S4, such as Figure 5 As shown, the specific steps include:

[0078] Step S41: extracting a current roughness value corresponding to the current water level from the roughness values ​​corresponding to different heights.

[0079] Step S42: Input the flow change value, current water level and current roughness value into the preset hydrodynamic model to obtain the target water level. Specifically, the preset hydrodynamic model is solved by the finite difference method according to the flow change value, current water level and current roughness value to obtain the target water level after the flow change.

[0080] Specifically, in one embodiment, the above step S5 is as follows: Figure 6 As shown, the specific steps include:

[0081] Step S51: Compare the target water level with the preset safety warning value to determine whether the target water level exceeds the preset safety warning value. Specifically, for example: the flood control limit water level is the upper limit water level allowed for water storage in the reservoir during the flood season; the normal water storage level is the highest water level allowed for water storage in the reservoir under normal operation. When the water level exceeds the required value at different times, the water surface may overflow into the river channel. Once overflowed, it may flood the living and production facilities around the river channel, causing destructive effects. The preset safety warning value can be set according to the requirements of different reservoirs.

[0082] Step S52: When the target water level exceeds the preset safety warning value, the river section corresponding to the target water level is marked as a dangerous river section, and the dangerous river section is reported. Specifically, by marking the dangerous river section, a safety warning can be provided to the dispatching personnel; at the same time, the river section with a large roughness value (the river channel has a strong obstruction to the water flow) can be separately marked to remind the dispatching personnel to pay attention to the water level changes in the river section and determine whether it affects the safety of the waterway.

[0083] Specifically, in one embodiment, the above step S5 is as follows: Figure 7 As shown, the specific steps include:

[0084] Step S531: extracting the first elevation and the second elevation at both ends of the corresponding section of each river section from the river section data.

[0085] Step S532: Compare the target water level with the first elevation and the second elevation respectively.

[0086] Step S533: When the target water level is greater than the first elevation and / or the second elevation, the water overflow position is determined according to the comparison result, and the overflow position is reported.

[0087] Specifically, by determining the specific overflow location (left bank or right bank overflow), a more specific dispatching basis is provided to the dispatching personnel.

[0088] In the present embodiment, a river type reservoir safety early warning device is also provided, and the device is used to implement the above-mentioned embodiment and preferred implementation mode, and the description has been made no further. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the device described in the following embodiments is preferably implemented with software, the implementation of hardware, or a combination of software and hardware is also possible and conceived.

[0089] This embodiment provides a river-type reservoir safety early warning device, such as Figure 8 As shown, including:

[0090] The acquisition module 101 is used to obtain the flow change value, current water level, historical water level flow data, river section data, normal water storage level and flood control limit water level of the target reservoir. For details, please refer to the relevant description of step S1 in the above method embodiment, which will not be repeated here.

[0091] The segmentation module 102 is used to segment the target reservoir according to preset distances to obtain multiple river sections. For details, please refer to the relevant description of step S2 in the above method embodiment, which will not be repeated here.

[0092] The analysis module 103 is used to analyze the roughness value corresponding to each river section at different heights according to the normal water storage level, flood control limit water level, historical water level and flow data and river section data. For details, please refer to the relevant description of step S3 in the above method embodiment, which will not be repeated here.

[0093] The calculation module 104 is used to calculate the water level after the flow change of each river section by using the flow change value, the current water level and the roughness value to obtain the target water level. For details, please refer to the relevant description of step S4 in the above method embodiment, which will not be repeated here.

[0094] The comparison module 105 is used to compare the target water level with the preset safety warning value to generate safety warning information. For details, please refer to the relevant description of step S5 in the above method embodiment, which will not be repeated here.

[0095] The river-type reservoir safety warning device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0096] The further functional description of each of the above modules is the same as that of the above corresponding embodiments and will not be repeated here.

[0097] According to an embodiment of the present invention, there is also provided an electronic device, such as Fig. 9As shown, the electronic device may include a processor 901 and a memory 902, wherein the processor 901 and the memory 902 may be connected via a bus or other means. Fig. 9 The example of connecting through bus is taken in the following.

[0098] The processor 901 may be a central processing unit (CPU). The processor 901 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0099] The memory 902 is a non-transitory computer-readable storage medium that can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as program instructions / modules corresponding to the methods in the method embodiments of the present invention. The processor 901 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory 902, that is, implementing the methods in the above method embodiments.

[0100] The memory 902 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created by the processor 901, etc. In addition, the memory 902 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 902 may optionally include a memory remotely arranged relative to the processor 901, and these remote memories may be connected to the processor 901 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0101] One or more modules are stored in the memory 902 , and when executed by the processor 901 , the method in the above method embodiment is executed.

[0102] The specific details of the above electronic device can be understood by referring to the corresponding descriptions and effects in the above method embodiments, and will not be repeated here.

[0103] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0104] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A river-type reservoir safety early warning method, characterized in that: include: Obtain the flow change value, current water level, historical water level and flow data, river section data, normal water storage level and flood control limit water level of the target reservoir; Dividing the target reservoir into sections according to preset distances to obtain multiple river sections; Analyze the roughness value corresponding to each river section at different heights according to the normal water storage level, flood control limit water level, the historical water level and flow data, and river section data; The target water level is obtained by calculating the water level of each river section after the flow change through the flow change value, the current water level and the roughness value corresponding to each river section at different heights; Comparing the target water level with a preset safety warning value to generate safety warning information; The method of analyzing the roughness value corresponding to each river section at different heights according to the normal water storage level, the flood control limit water level, the historical water level and flow data, and the river section data includes: Carrying out stratified treatment of the river section according to the normal water storage level and the flood control limit water level; Analyze the roughness value of each river section at different water levels based on the historical water level flow data and the river section data; The analyzing the roughness value of each river section at different water levels based on the historical water level flow data and the river section data includes: Extracting the flow data corresponding to different water levels of each river section from the historical water level and flow data; According to the flow data and river section data corresponding to different water levels, the preset hydrodynamic model is inverted to obtain the roughness value of each river section at different water levels; The layered processing of the river section according to the normal water storage level and the flood control limit water level includes: Obtaining a water level difference through the normal water storage level and the flood control limit water level; Obtaining the number of layers based on the water level difference and the preset layer height; stratifying the river section according to the preset stratification height, stratification quantity and the flood control limit water level; The target water level is obtained by calculating the water level of each river section after the flow change through the flow change value, the current water level and the roughness value corresponding to each river section at different heights, including: Extracting a current roughness value corresponding to the current water level from the roughness values ​​corresponding to different heights; The flow change value, the current water level and the current roughness value are input into a preset hydrodynamic model to obtain a target water level.

2. The river-type reservoir safety early warning method according to claim 1 is characterized in that: The step of comparing the target water level with a preset safety warning value to generate safety warning information includes: Comparing the target water level with a preset safety warning value to determine whether the target water level exceeds the preset safety warning value; When the target water level exceeds a preset safety warning value, the river section corresponding to the target water level is marked as a dangerous river section, and the dangerous river section is reported.

3. The river-type reservoir safety early warning method according to claim 2 is characterized in that: The method further comprises: Extracting the first elevation and the second elevation of the two ends of the corresponding section of each river section from the river section data; comparing the target water level with the first elevation and the second elevation respectively; When the target water level is greater than the first elevation and / or the second elevation, the water overflow position is determined according to the comparison result, and the overflow position is reported.

4. A river-type reservoir safety early warning device, characterized in that: include: The acquisition module is used to obtain the flow change value, current water level, historical water level and flow data, river section data, normal water storage level and flood control limit water level of the target reservoir; A segmentation module, used to segment the target reservoir into multiple river sections according to preset distances; An analysis module, used for analyzing the roughness value corresponding to each river section at different heights according to the normal water storage level, the flood control limit water level, the historical water level and flow data and the river section data; A calculation module, used for calculating the water level after the flow change of each river section by using the flow change value, the current water level and the roughness value to obtain a target water level; A comparison module, used to compare the target water level with a preset safety warning value to generate safety warning information; The method of analyzing the roughness value corresponding to each river section at different heights according to the normal water storage level, the flood control limit water level, the historical water level and flow data, and the river section data includes: Carrying out stratified treatment of the river section according to the normal water storage level and the flood control limit water level; Analyze the roughness value of each river section at different water levels based on the historical water level flow data and the river section data; The analyzing the roughness value of each river section at different water levels based on the historical water level flow data and the river section data includes: Extracting the flow data corresponding to different water levels of each river section from the historical water level and flow data; According to the flow data and river section data corresponding to different water levels, the preset hydrodynamic model is inverted to obtain the roughness value of each river section at different water levels; The layered processing of the river section according to the normal water storage level and the flood control limit water level includes: Obtaining a water level difference through the normal water storage level and the flood control limit water level; Obtaining the number of layers based on the water level difference and the preset layer height; stratifying the river section according to the preset stratification height, stratification quantity and the flood control limit water level; The target water level is obtained by calculating the water level of each river section after the flow change through the flow change value, the current water level and the roughness value corresponding to each river section at different heights, including: Extracting a current roughness value corresponding to the current water level from the roughness values ​​corresponding to different heights; The flow change value, the current water level and the current roughness value are input into a preset hydrodynamic model to obtain a target water level.

5. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the river-type reservoir safety early warning method according to any one of claims 1 to 3 by executing the computer instructions.

6. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the river-type reservoir safety early warning method according to any one of claims 1-3.

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