Water level monitoring system based on flood discharge gate control

Abstract

The invention discloses a water level monitoring system based on flood discharge gate control, and relates to the technical field of flood discharge gate control, and the water level monitoring system comprises an upstream water level monitoring module, a downstream water level monitoring module, a gate discharge monitoring module, an early warning terminal and a database. Analyzing a water level future coefficient corresponding to the upstream end of the reservoir, judging whether the reservoir needs to open a gate for flood discharge or not, and analyzing to obtain a gate opening width corresponding to flood discharge of the reservoir, and analyzing to obtain a gate opening width corresponding to development of the downstream end of the reservoir when no flood occurs at the upstream end of the reservoir; meanwhile, the state of the reservoir gate during flood discharge is known, and whether adjustment is conducted or not is analyzed, so that safe reservoir flood discharge is achieved, ecological safety is guaranteed, efficient and accurate flood discharge is achieved, it is further guaranteed that surrounding development obtains effective water source support, and reasonable allocation of water resources and efficient utilization of the resources are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of flood discharge gate control, and particularly to a water level monitoring system based on flood discharge gate control. Background Art

[0002] With the arrival of the rainy season, the monitoring of water level is particularly important. Based on the real-time monitoring of the water level, timely flood discharge can be implemented to ensure ecological safety. By monitoring the development trend of the upstream water level, it can be further determined whether the current reservoir needs to open the flood discharge gate, so as to make accurate decisions. At the same time, from the perspective of monitoring the downstream water level, multi-faceted considerations for opening the flood discharge gate are realized, and safe flood discharge is achieved, reducing the risk of flood inundation.

[0003] An existing technology, such as a water conservancy gate monitoring system and its monitoring method disclosed in the invention patent application with publication number CN118819009A, belongs to the technical field of water conservancy monitoring. It includes a monitoring module, a controller, a monitoring platform, an analysis module, a driving module, and an early warning module; the analysis module is used to analyze the early warning liquid level height and the gate opening state; when the water level reaches the early warning water level height or the gate lifting height is abnormal, the controller controls the early warning module to give an early warning; during flood discharge, the controller drives the corresponding gate to open through a control instruction. The monitoring module of this application effectively monitors the gate opening state and the water level, thereby realizing the real-time monitoring of the water level and improving the reliability of flood control. The analysis module can analyze the monitored data in real time. When the monitored data is abnormal, the early warning module gives an early warning in time, so that the management personnel can respond in time.

[0004] For the above solution, there are the following technical problems: The above invention mainly gives an early warning when the water level reaches the early warning water level height or the gate lifting height is abnormal, so as to improve the reliability of flood control. It does not monitor the trend development of the water level corresponding to the upstream end of the gate, and thus does not conduct progressive correlation analysis between the reservoir associated with the upstream end and the downstream end. When there is a flood at the upstream end of the reservoir and the current reservoir cannot accommodate it, the effective correlation of the corresponding flood discharge measures cannot be achieved, resulting in a flood discharge situation of over-discharge or under-discharge, thus causing the risk of ecological damage at the downstream end or reservoir levee overtopping, and the ecological safety cannot be effectively guaranteed, there is a hidden danger of safety loss. At the same time, the gate during flood discharge is not analyzed, and it is impossible to know whether the gate is in a safe state during flood discharge, increasing the safety risk of flood discharge. Summary of the Invention

[0005] Aiming at the above existing technical deficiencies, the purpose of the present invention is to provide a water level monitoring system based on flood discharge gate control.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a water level monitoring system based on flood discharge gate control, including: an upstream water level monitoring module, which is used to monitor the water level corresponding to the upstream end of the reservoir, obtain the basic data of the water level corresponding to the upstream end of the reservoir, analyze to obtain the future coefficient of the water level corresponding to the upstream end of the reservoir, and judge whether the reservoir needs to open the flood discharge gate. If the reservoir needs to open the flood discharge gate, then according to the water level monitored at the downstream end of the reservoir, analyze to obtain the opening width of the flood discharge gate corresponding to the reservoir.

[0007] A downstream water level monitoring module, which is used to obtain the state data corresponding to the development of the downstream end of the reservoir based on the water level monitored at the downstream end of the reservoir when no flood occurs at the upstream end of the reservoir, and then analyze to obtain the opening width of the flood discharge gate corresponding to the development of the downstream end of the reservoir.

[0008] A gate discharge monitoring module, which is used to monitor the gate data corresponding to the reservoir gate during the first flood discharge, and then analyze to obtain the basic state of the reservoir gate during flood discharge, judge whether it is necessary to adjust the opening width of the flood discharge gate corresponding to the gate, and analyze to obtain the number of auxiliary channels required after the adjustment of the flood discharge gate.

[0009] An early warning terminal, which is used to give an early warning prompt when a flood will occur at the upstream end or when the basic state of the reservoir gate during flood discharge is dangerous.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention provides a water level monitoring system based on flood discharge gate control. By monitoring the water level corresponding to the upstream end of the reservoir, the future coefficient of the water level corresponding to the upstream end of the reservoir is analyzed, it is judged whether the reservoir needs to open the flood discharge gate, and the opening width of the flood discharge gate corresponding to the reservoir is analyzed. Secondly, when no flood occurs at the upstream end of the reservoir, the opening width of the flood discharge gate corresponding to the development of the downstream end of the reservoir is analyzed. At the same time, the state of the reservoir gate during flood discharge is understood, and it is analyzed whether to adjust, so as to achieve safe flood discharge of the reservoir, ensure ecological safety, achieve efficient and accurate flood discharge, avoid the situation that the water level of the dam is too high due to insufficient flood discharge, resulting in excessive pressure on the dam, and further reduce the situation of excessive losses in the downstream area due to excessive flood discharge. At the same time, it ensures that the surrounding development obtains effective water source support, and realizes the reasonable allocation of water resources and the efficient utilization of resources.

[0011] 2. Monitor the water level corresponding to the upstream end of the reservoir, obtain the basic data of the water level corresponding to the upstream end of the reservoir, analyze to obtain the future coefficient of the water level corresponding to the upstream end of the reservoir, and judge whether the reservoir needs to open the flood discharge gate. If the reservoir needs to open the flood discharge gate, then according to the water level monitored at the downstream end of the reservoir, analyze to obtain the opening width of the flood discharge gate corresponding to the reservoir, so as to achieve efficient early warning of the water level at the upstream end, and at the same time achieve effective series connection during flood discharge, so as to make accurate and effective decisions on opening the flood discharge gate, and ensure the ecological safety during flood discharge.

[0012] 3. When there is no flood at the upstream end of the reservoir, based on the water level monitored at the downstream end of the reservoir, obtain the state data corresponding to the development at the downstream end of the reservoir, analyze and obtain the opening width of the gate corresponding to the development at the downstream end of the reservoir, ensure that the surrounding development receives effective water source support, achieve the reasonable allocation of water resources and the efficient utilization of resources, and improve the ecological development benefits.

[0013] 4. Monitor the gate data corresponding to the first flood discharge of the reservoir gate, and then analyze and obtain the basic state of the reservoir gate corresponding to the flood discharge, determine whether it is necessary to adjust the opening width of the gate corresponding to the flood discharge, analyze and obtain the number of auxiliary channels required after the adjustment of the flood discharge gate, ensure the safety of the gate during the flood discharge, avoid causing a greater risk of dam break, and improve the flood discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic connection diagram of the system structure of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0017] Please refer to Figure 1 As shown, a water level monitoring system based on flood discharge gate control includes an upstream water level monitoring module, a downstream water level monitoring module, a gate discharge monitoring module, an early warning terminal, and a database.

[0018] The upstream water level monitoring module is respectively connected to the gate discharge monitoring module, the early warning terminal, and the database. The downstream water level monitoring module is respectively connected to the gate discharge monitoring module and the database. The gate discharge monitoring module is respectively connected to the early warning terminal and the database.

[0019] The upstream water level monitoring module is used to monitor the water level corresponding to the upstream end of the reservoir, obtain the basic data of the water level corresponding to the upstream end of the reservoir, analyze and obtain the future coefficient of the water level corresponding to the upstream end of the reservoir, and determine whether the reservoir needs to open the floodgate for flood discharge. If the reservoir needs to open the floodgate for flood discharge, the opening width of the floodgate corresponding to the reservoir is analyzed based on the water level monitored at the downstream end of the reservoir.

[0020] It should be noted that each water level monitoring device includes, but is not limited to, a pressure type water level sensor, an ultrasonic water level sensor, a radar water level sensor, a water level change rate sensor, an electromagnetic flow velocity sensor, a propeller type flow velocity sensor, etc.; among them, the pressure type water level sensor, the water level change rate sensor, and the electromagnetic flow velocity sensor are used to obtain the basic data of the water level corresponding to the upstream end of the reservoir.

[0021] As an optional implementation manner, the specific analysis process of analyzing and obtaining the future coefficient of the water level corresponding to the upstream end of the reservoir is as follows: Based on each water level monitoring device placed at the upstream end of the reservoir, the basic data of the water level corresponding to the upstream end of the reservoir is obtained, including the water level, the water level rise, and the flow velocity, and the water level safety interval, the water level rise safety interval, and the flow velocity safety interval corresponding to the upstream end of the reservoir are extracted from the database, and then the future coefficient of the water level corresponding to the upstream end of the reservoir is evaluated. The calculation formula is: K m is the m-th basic data of the water level corresponding to the upstream end of the reservoir, and K′ m is the safety interval of the m-th basic data of the water level corresponding to the upstream end of the reservoir, m ∈ [1, 3], and m is the number of the basic data.

[0022] It should be noted that the water level safety interval, the water level rise safety interval, and the flow velocity safety interval corresponding to the upstream end of the reservoir are set by professional water conservancy personnel; among them, the water level safety interval corresponding to the upstream end of the reservoir is a reference value for judging whether the development trend of the current water level corresponding to the upstream end of the reservoir is safe. The functions of the water level rise safety interval and the flow velocity safety interval are the same, so they will not be elaborated here.

[0023] If the future coefficient of the water level corresponding to the upstream end of the reservoir is 1, it is determined that no flood will occur at the upstream end, and the floodgate opening corresponding to the reservoir will continue to be analyzed based on the water level monitored at the downstream end. If the future coefficient of the water level corresponding to the upstream end of the reservoir is 0, it is determined that a flood will occur at the upstream end, and then the reservoir will be monitored.

[0024] As an alternative implementation, the process of determining whether the reservoir needs to open the floodgate for flood discharge is as follows: Compare the future coefficient of the water level corresponding to the upstream end of the reservoir with the water level coefficients corresponding to the reference accommodation capacities of the reservoir stored in the database. If the future coefficient of the water level corresponding to the upstream end of the reservoir is equal to the water level coefficient corresponding to a certain reference accommodation capacity of the reservoir stored in the database, then use this reference accommodation capacity as the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir.

[0025] Compare the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir with the remaining capacity space of the water stored in the reservoir. If the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir is greater than or equal to the remaining capacity space of the water stored in the reservoir, it is determined that the reservoir cannot accommodate and the floodgate needs to be opened for flood discharge. If the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir is less than the remaining capacity space of the water stored in the reservoir, it is determined that the reservoir has sufficient capacity and there is no need to open the floodgate for flood discharge. Then, an in-depth analysis of whether to discharge the flood from the reservoir is carried out according to the development needs corresponding to the downstream section of the reservoir, so as to determine whether the reservoir needs to open the floodgate for flood discharge.

[0026] As an alternative implementation, the process of analyzing and obtaining the opening width of the floodgate for reservoir flood discharge is as follows: When floods occur at the upstream end of the reservoir and the reservoir cannot accommodate them, obtain the basic information corresponding to the downstream end of the reservoir, including the river channel's flood discharge capacity, dam height, and pumping station drainage speed. Compare the flood discharge capacity that the downstream end of the reservoir can bear with the flood discharge capacities corresponding to the reference safety impact levels for flood discharge stored in the database. At the same time, compare the dam height and pumping station drainage speed corresponding to the downstream end of the reservoir with the dam heights and pumping station drainage speeds corresponding to the reference safety impact levels for flood discharge stored in the database. If the flood discharge capacity that the downstream end of the reservoir can bear is the same as the flood discharge capacity corresponding to a certain reference safety impact level for flood discharge stored in the database, then use this reference safety impact level as the reference impact level for the downstream end. If the dam height and pumping station drainage speed corresponding to the downstream end of the reservoir are the same as the dam heights and pumping station drainage speeds corresponding to a certain reference safety impact level for flood discharge stored in the database, then use this reference safety impact level as the reference impact level for the downstream end, so as to obtain the various safety impact levels for the downstream end of the reservoir.

[0027] It should be noted that the basic information corresponding to the downstream end of the reservoir is obtained from the database. Among them, the flood discharge capacity of the river channel can be monitored by a Doppler ultrasonic flowmeter; the dam height can be measured by a level or total station, and the pumping station drainage speed can be monitored by an electromagnetic flowmeter or ultrasonic flowmeter.

[0028] It should be noted that the various reference safety impact levels are set by professional water conservancy personnel, and the various reference safety impact levels are the upper limits of the safety impacts generated when the downstream end of the reservoir faces flood discharge.

[0029] Arrange each safety impact level in ascending order, and take the gate opening width stored in the database corresponding to the safety impact level ranked first as the gate opening width during reservoir flood discharge. Or, based on the gate opening widths stored in the database corresponding to each safety impact level, calculate the average value of each gate opening width to obtain the average gate opening width, and take the average gate opening width as the gate opening width for reservoir flood discharge.

[0030] Obtain the reference gate opening width during historical reservoir flood discharge from the database, and compare the gate opening width ranked first and the average gate opening width with the reference gate opening width respectively. If the gate opening width ranked first is close to the reference gate opening width, take the gate opening width ranked first as the gate opening width for reservoir flood discharge. If the average gate opening width is close to the reference gate opening width, take the average gate opening width as the gate opening width for reservoir flood discharge, and thus analyze to obtain the gate opening width for reservoir flood discharge.

[0031] It should be noted that when obtaining from the database the historical gate opening widths corresponding to the situation where the reservoir capacity is insufficient during floods at the upstream end of the reservoir, calculate the average value of each historical gate opening width to obtain the average historical gate opening width, and take the average historical gate opening width as the reference gate opening width.

[0032] It should also be noted that, for example, if the reference gate opening width is 7, the gate opening width ranked first is 5, and the average gate opening width is 6, then 6 is closer to 7 than 5, so the average gate opening width is taken as the gate opening width for reservoir flood discharge.

[0033] Monitor the water level corresponding to the upstream end of the reservoir, obtain the basic data of the water level corresponding to the upstream end of the reservoir, analyze to obtain the future coefficient of the water level corresponding to the upstream end of the reservoir, and determine whether the reservoir needs to open the gate for flood discharge. If the reservoir needs to open the gate for flood discharge, analyze to obtain the gate opening width corresponding to the flood discharge of the reservoir based on the water level monitored at the downstream end of the reservoir, so as to achieve efficient early warning of the water level at the upstream end, and at the same time achieve effective series connection during flood discharge, thus making accurate and effective decisions on opening the flood discharge gate and ensuring the ecological safety during flood discharge.

[0034] The downstream water level monitoring module is used to, when no flood occurs at the upstream end of the reservoir, obtain the state data corresponding to the development of the downstream end of the reservoir based on the water level monitored at the downstream end of the reservoir, and then analyze to obtain the gate opening width corresponding to the development of the downstream end of the reservoir.

[0035] It should be noted that obtain the state data corresponding to the development of the downstream end of the reservoir from the database, where the draft depth of the waterway corresponding to the development of the downstream end of the reservoir can be obtained by an echo sounder, and the shipping flow corresponding to the development of the downstream end of the reservoir is obtained using a radar sensor.

[0036] As an alternative implementation, the state data includes the channel draft and the shipping flow.

[0037] As an alternative implementation, the analyzed opening width of the gate corresponding to the development demand at the downstream end of the reservoir is as follows: According to the channel grade at the downstream end of the reservoir corresponding to the development, the reference demand water level of the channel grade corresponding to the downstream end of the reservoir is obtained from the database, and based on the water level monitored at the downstream end of the reservoir, the two are compared to obtain the water level difference corresponding to the downstream end of the reservoir. The water level difference corresponding to the downstream end of the reservoir is compared with the water level differences corresponding to each water volume stored in the database. If the water level difference corresponding to the downstream end of the reservoir is the same as the water level difference corresponding to a certain water volume stored in the database, then this water volume is used as the water volume for flood discharge required at the downstream end of the reservoir.

[0038] The channel draft corresponding to the downstream end of the reservoir is compared with the channel drafts corresponding to each reference flood discharge impact force stored in the database, and at the same time, the shipping flow corresponding to the downstream end of the reservoir is compared with the shipping flows corresponding to each flood discharge impact force stored in the database. If the channel draft corresponding to the downstream end of the reservoir is the same as the channel draft corresponding to a certain reference flood discharge impact force stored in the database, and the shipping flow corresponding to the downstream end is the same as the shipping flow corresponding to this flood discharge impact force stored in the database, then this flood discharge impact force is used as the reference flood discharge impact force corresponding to the safety of the downstream end of the reservoir, and the opening width of the gate corresponding to this flood discharge impact force is obtained from the database, and this is used as the opening width of the gate corresponding to the development at the downstream end of the reservoir.

[0039] When no flood occurs at the upstream end of the reservoir, based on the water level monitored at the downstream end of the reservoir, the state data corresponding to the development at the downstream end of the reservoir is obtained, and the opening width of the gate corresponding to the development at the downstream end of the reservoir is analyzed, ensuring that the surrounding development receives effective water source support, realizing the reasonable allocation of water resources and the efficient utilization of resources, and improving the ecological development benefits.

[0040] The gate discharge monitoring module is used to monitor the gate data corresponding to the reservoir gate during the first flood discharge, and then analyze to obtain the basic state of the reservoir gate during flood discharge, determine whether it is necessary to adjust the opening width of the gate corresponding to flood discharge, and analyze to obtain the number of required auxiliary channels after the flood discharge gate is adjusted.

[0041] It should be noted that a pressure sensor is used to obtain the water impact force corresponding to the reservoir gate during the first flood discharge; a crack width measuring instrument is used to obtain the dam crack width and the gate crack width corresponding to the reservoir gate during the first flood discharge.

[0042] As an alternative implementation, the basic state of the reservoir gate during corresponding flood discharge is analyzed to determine whether it is necessary to adjust the opening width of the gate during corresponding flood discharge. The specific analysis process is as follows: Obtain the gate data corresponding to the reservoir gate during the first flood discharge, including water impact force, dam crack width, and gate crack width. Import the gate data corresponding to the reservoir gate during the first flood discharge into the gate state evaluation model, and then analyze to obtain the state value of the gate during corresponding flood discharge. If the state value of the gate during corresponding flood discharge is 1, it is determined that the gate state is normal and there is no need to adjust the opening width of the gate during corresponding flood discharge. If the state value of the gate during corresponding flood discharge is 0, it is determined that the gate state is abnormal and the opening width of the gate during corresponding flood discharge needs to be adjusted.

[0043] As an alternative implementation, the state value of the gate during corresponding flood discharge is analyzed. The specific analysis process is as follows: Through the gate state evaluation model:

[0044] where ZM is the state value of the gate during corresponding flood discharge, C′ is the set reference water impact force, G′ is the set reference dam crack width, D′ is the set reference gate crack width, C is the water impact force corresponding to the reservoir gate during the first flood discharge, G is the dam crack width corresponding to the reservoir gate during the first flood discharge, D is the gate crack width corresponding to the reservoir gate during the first flood discharge, and Y is the set reference gate state value.

[0045] It should be noted that the reference water impact force, reference dam crack width, reference gate crack width, and reference gate state value are set by professional water conservancy personnel; the reference water impact force is a reference value for judging whether the water impact force suffered by the reservoir gate during the first flood discharge is normal; the reference dam crack width is a reference value for judging whether the dam corresponding to the reservoir gate during the first flood discharge is safe and normal; the reference gate crack width is a reference value for judging whether the gate is safe and normal during the first flood discharge of the reservoir gate; the reference gate state value is a reference value for judging whether the gate state is normal during the first flood discharge of the reservoir gate.

[0046] As an alternative implementation, the number of auxiliary channels required after the adjustment of the flood discharge gate is obtained through the following specific analysis process: When the opening width requirement of the gate for flood discharge is adjusted, a single-step decreasing adjustment is made based on the minimum base number of the gate opening width on the basis of the original opening width of the gate, so as to obtain the adjusted opening width of the gate. At the same time, according to the water volume that needs to be reached at the downstream end of the reservoir within a preset time, and based on the output water volume discharged within the preset demand time with the adjusted gate opening width, the difference water volume is obtained, and the output water volume of the auxiliary channel corresponding to the preset demand time stored in the database is obtained. The number of auxiliary channels is continuously added. When the output water volume corresponding to the added auxiliary channels is greater than or equal to the difference water volume, the number of auxiliary channels required after the adjustment of the flood discharge gate is statistically obtained.

[0047] It should be noted that a single-step decreasing adjustment is made based on the minimum base number of the gate opening width on the basis of the original opening width of the gate: for example, if the original opening width of the current gate is 8, 8 can be divided into 2 to the 4th power, and 2 is the minimum base number of the original opening width of the current gate.

[0048] Monitor the gate data corresponding to the reservoir gate during the first flood discharge, and then analyze to obtain the basic state of the reservoir gate corresponding to the flood discharge, judge whether it is necessary to adjust the opening width of the gate corresponding to the flood discharge, analyze to obtain the number of auxiliary channels required after the adjustment of the flood discharge gate, ensure the safety of the gate during the flood discharge, avoid causing a greater risk of dam break, and improve the flood discharge efficiency.

[0049] The database is used to store the water level, basic data, water level safety range, water level rise safety range, flow velocity safety range, water level safety coefficient range, water level coefficient, remaining capacity space, basic information, status data and gate data corresponding to the upstream end of the reservoir.

[0050] The early warning terminal is used to give an early warning prompt when floods will occur at the upstream end or when the basic state of the reservoir gate corresponding to the flood discharge is dangerous.

[0051] In the embodiment of the present invention, by monitoring the water level corresponding to the upstream end of the reservoir, the future coefficient of the water level corresponding to the upstream end of the reservoir is analyzed, it is judged whether the reservoir needs to open the gate for flood discharge, and the opening width of the gate corresponding to the flood discharge of the reservoir is analyzed. Secondly, when no floods will occur at the upstream end of the reservoir, the opening width of the gate corresponding to the development of the downstream end of the reservoir is analyzed, and at the same time, the state of the reservoir gate during the flood discharge is understood and analyzed whether to adjust, so as to realize safe flood discharge of the reservoir, ensure ecological safety, achieve efficient and accurate flood discharge, avoid the situation that the water level of the dam is too high due to insufficient flood discharge, resulting in the current situation of heavy pressure on the dam, and further reduce the situation of excessive losses in the downstream area due to excessive flood discharge. At the same time, ensure that the surrounding development obtains effective water source support, and realize the reasonable allocation of water resources and the efficient utilization of resources.

[0052] The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of the present technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A water level monitoring system based on flood discharge gate control, characterized in that, Including: An upstream water level monitoring module, which is used to monitor the water level corresponding to the upstream end of the reservoir, obtain the basic data of the water level corresponding to the upstream end of the reservoir, analyze to obtain the future coefficient of the water level corresponding to the upstream end of the reservoir, and judge whether the reservoir needs to open the sluice for flood discharge. If the reservoir needs to open the sluice for flood discharge, then based on the water level monitored at the downstream end of the reservoir, analyze to obtain the opening width of the flood discharge gate corresponding to the reservoir; A downstream water level monitoring module, which is used to, when no flood occurs at the upstream end of the reservoir, based on the water level monitored at the downstream end of the reservoir, obtain the state data corresponding to the development at the downstream end of the reservoir, and then analyze to obtain the opening width of the gate corresponding to the development at the downstream end of the reservoir; A gate discharge monitoring module, which is used to monitor the gate data corresponding to the first flood discharge of the reservoir gate, and then analyze to obtain the basic state of the reservoir gate corresponding to the flood discharge, judge whether it is necessary to adjust the opening width of the gate corresponding to the flood discharge, and analyze to obtain the number of required auxiliary channels after the flood discharge gate is adjusted; An early warning terminal, which is used to give an early warning prompt when a flood will occur at the upstream end or when the basic state of the reservoir gate corresponding to the flood discharge is dangerous.

2. The water level monitoring system based on flood discharge gate control according to claim 1, characterized in that, The specific analysis process for obtaining the future coefficient of the water level corresponding to the upstream end of the reservoir is as follows: Based on each water level monitoring device placed at the upstream end of the reservoir, the basic data of the water level corresponding to the upstream end of the reservoir is obtained, including water level, water level rise, and flow velocity. And the water level safety interval, water level rise safety interval, and flow velocity safety interval corresponding to the upstream end of the reservoir are extracted from the database. Then, the future coefficient of the water level corresponding to the upstream end of the reservoir is evaluated, and its calculation formula is: K m is the m-th basic data of the water level corresponding to the upstream end of the reservoir, and K′ m is the safety interval of the m-th basic data of the water level corresponding to the upstream end of the reservoir, where m ∈ [1, 3] and m is the number of the basic data; If the future coefficient of the water level corresponding to the upstream end of the reservoir is 1, it is determined that no flood will occur at the upstream end, and the flood discharge sluice opening of the reservoir will continue to be analyzed based on the water level monitored at the downstream end. If the future coefficient of the water level corresponding to the upstream end of the reservoir is 0, it is determined that a flood will occur at the upstream end, and then the reservoir will be monitored.

3. The water level monitoring system based on flood discharge gate control according to claim 2, characterized in that, The specific judgment process for judging whether the reservoir needs to open the sluice for flood discharge is as follows: Compare the future coefficient of the water level corresponding to the upstream end of the reservoir with the water level coefficients corresponding to the respective reference accommodation capacities of the reservoir stored in the database. If the future coefficient of the water level corresponding to the upstream end of the reservoir is equal to the water level coefficient corresponding to a certain reference accommodation capacity of the reservoir stored in the database, then take this reference accommodation capacity as the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir; Compare the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir with the remaining capacity space of the water stored in the reservoir. If the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir is greater than or equal to the remaining capacity space of the water stored in the reservoir, it is determined that the reservoir cannot accommodate and needs to open the sluice for flood discharge. If the required capacity space for the future coefficient of the water level corresponding to the upstream end of the reservoir is less than the remaining capacity space of the water stored in the reservoir, it is determined that the reservoir has sufficient capacity and does not need to open the sluice for flood discharge, and then an in-depth analysis of whether the reservoir needs to discharge flood will be carried out according to the development requirements corresponding to the downstream section of the reservoir, so as to determine whether the reservoir needs to open the sluice for flood discharge.

4. The water level monitoring system based on flood discharge gate control according to claim 3, wherein The specific analysis process for obtaining the opening width of the flood discharge gate of the reservoir is as follows: When floods occur at the upstream end of the reservoir and the reservoir cannot accommodate them, obtain the corresponding basic information at the downstream end of the reservoir, including the channel's flood discharge capacity, dam height, and pumping station drainage speed. Compare the flood discharge capacity of the channel corresponding to the downstream end of the reservoir with the flood discharge capacities of the channels corresponding to each reference safety impact level stored in the database. At the same time, compare the dam height and pumping station drainage speed corresponding to the downstream end of the reservoir with the dam heights and pumping station drainage speeds corresponding to each reference safety impact level stored in the database. If the flood discharge capacity of the channel corresponding to the downstream end of the reservoir is the same as the flood discharge capacity of the channel corresponding to a certain reference safety impact level stored in the database, then use this reference safety impact level as the reference impact level for the downstream end. If the dam height and pumping station drainage speed corresponding to the downstream end of the reservoir are the same as the dam heights and pumping station drainage speeds corresponding to a certain reference safety impact level stored in the database, then use this reference safety impact level as the reference impact level for the downstream end, and thus obtain each safety impact level at the downstream end of the reservoir. Arrange each safety impact level in ascending order, and use the width of the gate opening corresponding to the safety impact level ranked first and stored in the database as the width of the gate opening during reservoir flood discharge. Or, based on the widths of the gate openings corresponding to each safety impact level and stored in the database, calculate the average value of the widths of the gate openings to obtain the average width of the gate opening, and use the average width of the gate opening as the width of the gate opening during reservoir flood discharge. Obtain the reference width of the gate opening during historical reservoir flood discharge from the database, and compare the width of the gate opening ranked first and the average width of the gate opening with the reference width of the gate opening respectively. If the width of the gate opening ranked first is close to the reference width of the gate opening, then use the width of the gate opening ranked first as the width of the gate opening during reservoir flood discharge. If the average width of the gate opening is close to the reference width of the gate opening, then use the average width of the gate opening as the width of the gate opening during reservoir flood discharge, and thus analyze and obtain the width of the gate opening during reservoir flood discharge.

5. The water level monitoring system based on flood discharge gate control according to claim 1, characterized in that, The state data includes the draft depth of the waterway and the shipping flow.

6. The water level monitoring system based on flood discharge gate control according to claim 5, characterized in that, The specific analysis process for analyzing and obtaining the width of the gate opening corresponding to the development needs of the downstream end of the reservoir is as follows: According to the waterway grade corresponding to the development of the downstream end of the reservoir, obtain the reference required water level of the waterway grade corresponding to the downstream end of the reservoir from the database, and based on the water level monitored at the downstream end of the reservoir, compare the two to obtain the water level difference corresponding to the downstream end of the reservoir. Compare the water level difference corresponding to the downstream end of the reservoir with the water level differences corresponding to each water volume stored in the database. If the water level difference corresponding to the downstream end of the reservoir is the same as the water level difference corresponding to a certain water volume stored in the database, then use this water volume as the water volume required for flood discharge at the downstream end of the reservoir. Compare the draft depth of the waterway corresponding to the downstream end of the reservoir with the draft depths of the waterways corresponding to each reference flood discharge force stored in the database. At the same time, compare the shipping flow corresponding to the downstream end of the reservoir with the shipping flows corresponding to each flood discharge force stored in the database. If the draft depth of the waterway corresponding to the downstream end of the reservoir is the same as the draft depth of the waterway corresponding to a certain reference flood discharge force stored in the database, and the shipping flow corresponding to the downstream end is the same as the shipping flow corresponding to this flood discharge force stored in the database, then take this flood discharge force as the reference flood discharge force for the safety of the downstream end of the reservoir, and obtain the opening width of the gate corresponding to this flood discharge force from the database, and use this as the opening width of the gate under the corresponding development of the downstream end of the reservoir.

7. A water level monitoring system based on flood discharge gate control according to claim 1, characterized in that, The basic state of the reservoir gate during flood discharge is analyzed, and it is judged whether it is necessary to adjust the opening width of the gate during flood discharge. The specific analysis process is as follows: Obtain the gate data corresponding to the reservoir gate during the first flood discharge, including the water impact force, the crack width of the dam, and the crack width of the gate. Import the gate data corresponding to the reservoir gate during the first flood discharge into the gate state evaluation model, and then analyze to obtain the state value of the gate during flood discharge. If the state value of the gate during flood discharge is 1, it is determined that the gate state is normal and there is no need to adjust the opening width of the gate during flood discharge. If the state value of the gate during flood discharge is 0, it is judged that the gate state is abnormal and it is necessary to adjust the opening width of the gate during flood discharge.

8. The water level monitoring system based on flood discharge gate control according to claim 7, characterized in that, The specific analysis process for obtaining the state value of the gate during flood discharge is as follows: Through the gate status evaluation model: Among them, ZM is the status value of the gate corresponding to flood discharge, C′ is the set reference water scouring force, G′ is the set reference dam crack width, D′ is the set reference gate crack width, C is the water scouring force corresponding to the reservoir gate during the first flood discharge, G is the dam crack width corresponding to the reservoir gate during the first flood discharge, D is the gate crack width corresponding to the reservoir gate during the first flood discharge, and Y is the set reference gate status value.

9. The water level monitoring system based on flood discharge gate control according to claim 1, characterized in that, The specific analysis process for obtaining the required number of auxiliary channels after adjusting the flood discharge gate is as follows: When the opening width of the gate during flood discharge needs to be adjusted, perform a single-step decreasing adjustment on the basis of the original opening width of the gate according to the minimum base number of the opening width of the gate to obtain the adjusted opening width of the gate. At the same time, according to the amount of water that needs to be reached at the downstream end of the reservoir within the preset time, and based on the output water volume discharged within the preset demand time with the adjusted opening width of the gate, obtain the difference in water volume, and obtain the output water volume of the auxiliary channel corresponding to the preset demand time stored in the database. Continuously add the number of auxiliary channels. When the output water volume corresponding to the added auxiliary channels is greater than or equal to the difference in water volume, count the required number of auxiliary channels after adjusting the flood discharge gate.

10. A water level monitoring system based on flood discharge gate control according to claim 1, characterized in that, It also includes a database, which is used to store the water level, basic data, water level safety interval, water level rise safety interval, flow velocity safety interval, water level safety coefficient interval, water level coefficient, remaining capacity space, basic information, state data, and gate data corresponding to the upstream end of the reservoir.

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