A sponge city rainwater comprehensive management method and system

Abstract

The present invention relates to a method and system for comprehensive management of rainwater in a sponge city, wherein the method comprises: obtaining the real-time rainfall in the current area and uploading the real-time rainfall to a cloud platform; obtaining the water level of an initial water reservoir, establishing a water level control model according to the initial water reservoir water level and the real-time rainfall, and calculating the output of a PID controller using a proportional-integral-differential (PID) controller algorithm according to the water level control model, and then adjusting the operating rate of a pump and valve in the water reservoir according to the output of the PID controller; obtaining water quality indicators and uploading the water quality indicators to a cloud platform; analyzing the water quality indicators, and generating an over-standard warning when the water quality indicators exceed a preset threshold; and upon receiving the over-standard warning, sending an instruction to close the corresponding pumps and valves in the water reservoir, the clear water tank, and the reuse pipe. The problem of low management and utilization of rainwater resources in sponge cities is solved. The present invention has the effect of realizing efficient management and utilization of rainwater resources.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply and drainage management, and in particular to a method and system for comprehensive rainwater management in a sponge city. Background Art

[0002] Sponge city means that the city can adapt to environmental changes and respond to natural disasters like a sponge, absorbing, storing and purifying water when it rains, and "releasing" the stored water when needed to provide water for greening, etc., so as to achieve the purpose of comprehensive utilization of rainwater resources and water conservation. The construction of sponge cities can effectively alleviate urban waterlogging and comprehensively utilize rainwater resources. However, the construction of sponge cities cannot be separated from the comprehensive management of rainwater. It is necessary to monitor the water quality, water level and flow rate from collecting rainwater, pre-treating rainwater to recycling rainwater in real time, so as to provide data support for the efficiency evaluation of rainwater resource utilization.

[0003] However, the existing methods for managing rainwater in sponge cities lack support for real-time dynamic data, and the management and utilization rate of rainwater resources in sponge cities is low. Therefore, it is hoped that a comprehensive management method and system for rainwater in sponge cities can be provided, which can obtain real-time dynamic data by using the Internet of Things and cloud platforms to achieve efficient management and utilization of rainwater resources. Summary of the invention

[0004] The first object of the present invention is to provide a method and system for comprehensive rainwater management in a sponge city, which has the characteristics of realizing efficient management and utilization of rainwater resources.

[0005] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0006] A comprehensive rainwater management method for a sponge city, comprising:

[0007] Obtaining real-time rainfall in the current area and uploading the real-time rainfall to the cloud platform;

[0008] Acquire an initial water level of the water reservoir, establish a water level control model according to the initial water level of the water reservoir and the real-time rainfall, and calculate the output of a proportional-integral-differential (PID) controller using a PID controller algorithm according to the water level control model, and then adjust the operating speed of a water reservoir pump valve according to the output of the PID controller so that the real-time changing water level of the water reservoir is maintained within a preset water level range;

[0009] Obtain water quality indicators, including suspended solids content (SS) in a water reservoir, organic matter content (COD) in a water reservoir, SS in a clear water reservoir, COD in a clear water reservoir, SS in a recycling pipe, and COD in a recycling pipe, and upload the water quality indicators to a cloud platform;

[0010] Analyzing the water quality index, and generating an over-standard warning when the water quality index exceeds a preset threshold;

[0011] Upon receiving the over-limit warning, an instruction is sent to close the corresponding pumps and valves in the water storage tank, the clean water tank and the recycling pipe.

[0012] By adopting the above technical solution, firstly, by obtaining the rainfall in the current area and uploading it to the cloud platform, the situation of rainwater resources can be monitored in real time, so as to manage and utilize them more effectively. Secondly, a water level control model is established according to the real-time rainfall and the initial water level of the reservoir, and the operation rate of the reservoir pump valve is adjusted by the PID controller algorithm to achieve real-time control of the reservoir water level. This can effectively deal with sudden rainfall and reduce the risk of urban waterlogging. In addition, by obtaining water quality indicators such as suspended solids content (SS) and organic matter content (COD) in the reservoir, clear water tank and reuse pipe, and uploading them to the cloud platform for monitoring and analysis, it is possible to timely detect water quality exceeding the standard. Once the water quality indicator exceeds the preset threshold, an exceeding standard warning will be generated to remind relevant personnel to take corresponding measures. Finally, after receiving the water quality exceeding standard warning, an instruction will be automatically sent to close the corresponding pump valves in the reservoir, clear water tank and reuse pipe. This can prevent the continued spread and use of exceeding standard water quality and protect the water environment and human health. In summary, efficient management and utilization of rainwater resources can be achieved, while ensuring water quality safety and improving the sustainable development capacity and ecological environment quality of sponge cities.

[0013] In a preferred example, the present invention can be further configured as follows: the sponge city rainwater integrated management method further includes:

[0014] Obtain soil moisture of greening and upload the soil moisture to the cloud platform;

[0015] When the soil moisture is lower than a preset humidity range, a command is sent to open a corresponding pump valve in the recycling pipe so that the soil moisture is kept within the preset humidity range;

[0016] The flow rate of the recycling pipe is obtained, and the flow rate of the recycling pipe is uploaded to the cloud platform.

[0017] By adopting the above technical methods, the soil moisture of greening can be monitored in real time by first obtaining the soil moisture of greening and uploading it to the cloud platform. When the soil moisture is lower than the preset humidity range, the system will send a command to open the corresponding pump valve in the reuse pipe to keep the soil moisture within the preset range. This helps to effectively manage the irrigation water source of urban greening and maintain the appropriate humidity required for plant growth. In addition, by obtaining the flow of the reuse pipe and uploading it to the cloud platform, the use and flow of recycled water can be monitored in real time. This helps to understand the utilization of urban water resources and provide data support for subsequent water resources management and planning. In summary, the comprehensive management method of sponge city rainwater can be further improved to realize the monitoring and regulation of rainwater resources, water quality and soil moisture, so as to improve the sustainable utilization of urban water resources and promote the healthy development of the urban ecological environment.

[0018] In a preferred example, the present invention can be further configured as follows: the initial water level of the water reservoir is obtained, a water level control model is established according to the initial water level of the water reservoir and the real-time rainfall, and a proportional-integral-differential (PID) controller algorithm is used according to the water level control model to calculate the output of the PID controller, and then the operation rate of the water reservoir pump valve is adjusted according to the output of the PID controller so that the real-time changing water level of the water reservoir is maintained within a preset water level range, including:

[0019] A water level control model is established to represent the law of the initial reservoir water level changing over time. The water level control model is:

[0020] Z=Z0+∫(Q in -Q out +p)dt

[0021] Among them, Z is the real-time changing water level of the reservoir, Z0 is the initial water level of the reservoir, Q in is the water inflow into the reservoir, Q out is the outflow of the reservoir, and p is the real-time rainfall;

[0022] Calculate the deviation between the initial water level of the reservoir and the target water level, that is, the difference between the initial water level of the reservoir and the target water level, wherein the target water level is the middle value between the upper limit and the lower limit of the preset water level range;

[0023] According to the water level control model, a proportional-integral-differential (PID) controller algorithm is used to calculate the output of the PID controller, which is used to control the operating rate of the reservoir pump valve. The calculation formula is as follows:

[0024]

[0025] Where u(t) is the output of the PID controller, K pis the proportional coefficient of the PID controller, K i is the integral coefficient of the PID controller, K d is the differential coefficient of the PID controller, e(t) is the deviation between the initial reservoir water level and the target water level;

[0026] According to the output of the PID controller, the operating speed of the water reservoir pump valve is adjusted, and the operating speed of the water reservoir pump valve includes the operating speed of the water reservoir inlet pump and the operating speed of the water reservoir outlet pump.

[0027] By adopting the above technical methods, firstly, by establishing a water level control model, combined with the real-time rainfall and the initial water level of the reservoir, the system can calculate the output of the PID controller. The PID controller adjusts the operating rate of the reservoir pump valve according to the deviation between the current water level and the target water level, so that the real-time changing water level of the reservoir is kept within the preset water level range. This can ensure the stability of the water level of the reservoir and effectively control the storage and discharge of rainwater in the sponge city. In addition, according to the output of the PID controller, the operating rate of the reservoir inlet pump and outlet pump can be automatically adjusted. When the water level deviates from the target range by a large margin, the operating rate of the pump valve will be increased or decreased to quickly adjust the water level. By automatically adjusting the pump valve rate, the water level of the reservoir can be accurately controlled, and the response speed and stability of the system can be improved. In summary, the water level of the reservoir can be accurately controlled and adjusted to ensure that the real-time changing water level is within the preset range. This can improve the operating efficiency of the sponge city rainwater integrated management system, reduce the risk of urban waterlogging, and ensure the rational use of urban water resources.

[0028] In a preferred example, the present invention can be further configured as follows: the sponge city rainwater integrated management method further includes:

[0029] Calculate the water level increment of the reservoir, evaluate the rainwater utilization rate according to the real-time rainfall and the water level increment of the reservoir, and upload the rainwater utilization rate to the cloud platform;

[0030] Comprehensively evaluate the rainwater purification rate based on the water storage tank SS, the water storage tank COD, the recycling pipe SS, and the recycling pipe COD, and upload the rainwater purification rate to the cloud platform;

[0031] According to the real-time rainfall and the water level increment of the reservoir, a rainwater discharge rate is evaluated, and the rainwater discharge rate is uploaded to a cloud platform;

[0032] The water saving amount is evaluated according to the flow rate of the recycling pipe, and the water saving amount is uploaded to the cloud platform.

[0033] By adopting the above technical methods, firstly, by calculating the rainwater utilization rate according to the rainfall and the water level increment of the reservoir, and uploading it to the cloud platform, the utilization of rainwater resources can be evaluated and monitored. This helps to evaluate the effect of the sponge city rainwater integrated management system, further optimize the management strategy, and improve the utilization efficiency of rainwater resources. Secondly, by comprehensively evaluating the rainwater purification rate according to indicators such as SS and COD in the reservoir and the reuse pipe, and uploading it to the cloud platform, the rainwater purification effect can be monitored and evaluated. This helps to understand the effect of the sponge city rainwater purification system, optimize the layout and management of purification facilities, and improve the efficiency of rainwater purification. In addition, by calculating the difference between the rainfall and the initial water level increment of the reservoir, the rainwater discharge rate is evaluated, and it is uploaded to the cloud platform, which can realize the monitoring and evaluation of the rainwater discharge situation in the sponge city. This helps to optimize the design and management of the urban drainage system and reduce the negative impact of rainwater discharge on the environment. Finally, by evaluating the flow of the reuse pipe, calculating the water saving, and uploading it to the cloud platform, the urban water use situation can be monitored and evaluated. This helps to optimize the urban water management strategy and improve the urban water use efficiency. In summary, the integrated management method of rainwater in sponge cities can be further improved to achieve monitoring and evaluation of multiple indicators, thus providing data support and technical guarantee for the sustainable development of cities.

[0034] In a preferred example, the present invention can be further configured as follows: the sponge city rainwater integrated management method further includes:

[0035] According to the flow rate of the recycling pipe, the water consumption is counted and the water consumption is uploaded to the cloud platform;

[0036] According to the water consumption, the fees to be paid are counted, and the fees to be paid are uploaded to the cloud platform;

[0037] A visual report is generated based on the rainwater utilization rate, the rainwater purification rate, the rainwater discharge rate, the water saving amount, the water consumption, and the fees to be paid, and the visual report is uploaded to the cloud platform.

[0038] By adopting the above technical methods, firstly, the water consumption is counted through the flow of the recycling pipe and uploaded to the cloud platform, so that the monitoring and evaluation of urban water use can be realized. This helps to understand the urban water use situation and provide data support for urban water management. Secondly, the fees to be paid are counted according to the water consumption and uploaded to the cloud platform, so that the management and monitoring of urban water charges can be realized. This helps to optimize the charging management strategy and improve the collection rate of water charges. Finally, according to multiple indicators such as rainwater utilization rate, rainwater purification rate, rainwater discharge rate, water saving, water consumption and fees to be paid, a visual report can be generated and uploaded to the cloud platform. This helps to comprehensively monitor and evaluate the urban rainwater integrated management system and water use management, and provide data support and technical guarantee for the sustainable development of the city. In summary, the above technical methods can realize the comprehensive monitoring and evaluation of the urban rainwater integrated management system and water use management, and provide data support and technical guarantee for the sustainable development of the city. At the same time, by generating visual reports, urban managers can more intuitively understand the city's rainwater and water use situation, and provide a basis for formulating scientific control strategies.

[0039] The second purpose of the present invention is to provide a sponge city rainwater integrated management system, which has the characteristics of realizing efficient management and utilization of rainwater resources.

[0040] The second object of the present invention is achieved through the following technical solutions:

[0041] A sponge city rainwater integrated management system, the system comprising:

[0042] A rainwater dynamic monitoring subsystem is used to monitor rainfall and initial water level of a water reservoir in real time, upload the real-time rainfall and the initial water level of a water reservoir to a cloud platform, adjust the operation rate of a water reservoir pump and valve according to the real-time rainfall and the initial water level of a water reservoir, and is also used to monitor water quality indicators in real time, upload the water quality indicators to a cloud platform, and the cloud platform analyzes the water quality indicators. When the water quality indicators exceed a preset threshold, an over-standard warning is generated, thereby controlling the corresponding pumps and valves in the water reservoir, the clean water tank, and the reuse pipe;

[0043] A rainwater resource utilization efficiency evaluation subsystem is used to evaluate the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, and water saving, and upload the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, and water saving to a cloud platform;

[0044] The rainwater resource utilization fee management subsystem is used to count water consumption and fees to be paid, generate visual reports, and upload the water consumption, fees to be paid, and visual reports to the cloud platform;

[0045] The user terminal system is used to obtain the real-time monitoring data of the real-time rainfall, the initial water tank water level and the water quality index uploaded by the rainwater dynamic monitoring subsystem from the cloud platform, and is also used to receive the over-standard warning sent by the cloud platform. It is also used to obtain the rainwater utilization rate, rainwater purification rate, rainwater discharge rate and water saving uploaded by the rainwater resource utilization efficiency evaluation subsystem from the cloud platform, and is also used to obtain the water consumption statistics, fees to be paid and visual reports uploaded by the rainwater resource utilization charging management subsystem from the cloud platform.

[0046] In a preferred example, the present invention can be further configured as follows: the rain dynamic monitoring subsystem includes:

[0047] A rainfall monitoring module is used to obtain the real-time rainfall in the current area and upload the real-time rainfall to the cloud platform; a pump and valve first control module is used to obtain the initial water level of the reservoir, establish a water level control model according to the initial water level of the reservoir and the real-time rainfall, and calculate the output of the PID controller using a proportional-integral-differential (PID) controller algorithm according to the water level control model, and then adjust the operating rate of the reservoir pump and valve according to the output of the PID controller, so that the real-time changing water level of the reservoir is kept within a preset water level range;

[0048] A water quality monitoring module is used to obtain water quality indicators, including suspended solids content (SS) in a water reservoir, organic matter content (COD) in a water reservoir, SS in a clear water reservoir, COD in a clear water reservoir, SS in a recycling pipe, and COD in a recycling pipe, and upload the water quality indicators to a cloud platform;

[0049] The over-standard alarm module is used to analyze the water quality index and generate an over-standard warning when the water quality index exceeds the preset threshold; the pump and valve second control module is used to receive the over-standard warning and send instructions to close the corresponding pumps and valves in the water storage tank, the clear water tank and the recycling pipe.

[0050] In a preferred example, the present invention can be further configured as follows: the rain dynamic monitoring subsystem further includes:

[0051] A soil moisture acquisition module is used to acquire the soil moisture of the greening area and upload the soil moisture to the cloud platform;

[0052] The third pump and valve control module is used to send a command to open the corresponding pump and valve in the recycling pipe when the soil moisture is lower than the preset humidity range, so that the soil moisture is kept within the preset humidity range;

[0053] The flow statistics module is used to obtain the flow of the recycling pipe and upload the flow of the recycling pipe to the cloud platform.

[0054] In a preferred example, the present invention can be further configured as follows: the rainwater resource utilization efficiency evaluation subsystem includes:

[0055] A rainwater utilization rate evaluation module is used to calculate the water level increment of the water storage tank, evaluate the rainwater utilization rate according to the real-time rainfall and the water level increment of the water storage tank, and upload the rainwater utilization rate to the cloud platform;

[0056] A rainwater purification rate evaluation module is used to comprehensively evaluate the rainwater purification rate according to the water storage tank SS, the water storage tank COD, the recycling pipe SS, and the recycling pipe COD, and upload the rainwater purification rate to the cloud platform;

[0057] A rainwater discharge rate evaluation module, used to evaluate the rainwater discharge rate according to the real-time rainfall and the water level increment of the reservoir, and upload the rainwater discharge rate to the cloud platform;

[0058] The water saving evaluation module is used to evaluate the water saving according to the flow rate of the recycling pipe and upload the water saving to the cloud platform.

[0059] In a preferred example, the present invention can be further configured as follows: the rainwater resource utilization fee management subsystem includes:

[0060] The water consumption statistics module is used to count the water consumption according to the flow of the reuse pipe, and upload the water consumption to the cloud platform; the payment statistics module is used to count the fees to be paid according to the water consumption, and upload the fees to be paid to the cloud platform; the report center module is used to generate a visual report based on the rainwater utilization rate, the rainwater purification rate, the rainwater discharge rate, the water saving, the water consumption, and the fees to be paid, and upload the visual report to the cloud platform.

[0061] In summary, the present invention includes at least one of the following beneficial technical effects:

[0062] 1. This technical solution can achieve efficient management and utilization of rainwater resources, while ensuring water quality safety and improving the sustainable development capacity and ecological environment quality of sponge cities;

[0063] 2. It helps to effectively manage the irrigation water source of urban greening and maintain the appropriate humidity required for plant growth. It can further improve the comprehensive management method of rainwater in sponge cities, realize the monitoring and regulation of rainwater resources, water quality and soil moisture, so as to improve the sustainable utilization of urban water resources and promote the healthy development of the urban ecological environment;

[0064] 3. It can realize precise control and adjustment of the water level of the reservoir to ensure that the real-time changing water level is within the preset range. This can improve the operating efficiency of the sponge city rainwater integrated management system, reduce the risk of urban waterlogging, and ensure the rational use of urban water resources;

[0065] 4. Monitoring and evaluation of rainwater purification effects will help understand the effects of rainwater purification systems in sponge cities, optimize the layout and management of purification facilities, and improve rainwater purification efficiency. Monitoring and evaluation of rainwater discharge in sponge cities will help optimize the design and management of urban drainage systems and reduce the negative impact of rainwater discharge on the environment. Monitoring and evaluation of urban water use will help optimize urban water management strategies and improve urban water use efficiency. Monitoring and evaluation of multiple indicators will provide data support and technical guarantees for the sustainable development of cities.

[0066] 5. The above technical methods can realize the comprehensive monitoring and evaluation of the urban rainwater integrated management system and water use management, and provide data support and technical guarantee for the sustainable development of the city. At the same time, the visual report enables urban managers to understand the city's rainwater and water use more intuitively, providing a basis for formulating scientific management and control strategies. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 It is a schematic diagram of steps S1-S3 in a method for integrated rainwater management in a sponge city according to one embodiment of the present invention;

[0068] Figure 2 yes Figure 1 Specific flow diagram of step S1 in FIG.

[0069] Figure 3 yes Figure 2 Specific flow diagram of step S11;

[0070] Figure 4 yes Figure 1 Specific flow diagram of step S2;

[0071] Figure 5 yes Figure 1 Specific flow chart of step S3 in FIG. DETAILED DESCRIPTION

[0072] The following will be combined with the attached embodiment of the present invention Figure 1-5 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0074] See also Figure 1 , which is an embodiment of a sponge city rainwater comprehensive management method provided in an embodiment of the present application, comprising steps S1-S3.

[0075] S1. Methods for dynamic monitoring of rainwater; see Figure 2 , including steps S10-S17, wherein S15-S17 are specific steps of the method for irrigation and greening:

[0076] S10, obtaining the real-time rainfall in the current area, and uploading the real-time rainfall to the cloud platform;

[0077] First, choose an appropriate location to install the rain gauge in an open area or on the roof to avoid obstacles such as buildings and trees that affect the accuracy of rainfall data. You can consider installing it at a high place to better receive rainfall. Secondly, connect the rain gauge to the data collector to ensure that the data can be transmitted to the sponge city rainwater integrated management system in a timely manner. Finally, upload the data to the cloud platform to provide basic data support for the sponge city rainwater integrated management system.

[0078] S11, obtaining the initial water level of the reservoir, establishing a water level control model according to the initial water level of the reservoir and the real-time rainfall, and calculating the output of the PID controller using a proportional-integral-differential (PID) controller algorithm according to the water level control model, and then adjusting the operating speed of the reservoir pump valve according to the output of the PID controller to keep the real-time changing water level of the reservoir within a preset water level range; refer to Figure 3 , including steps S110-S113:

[0079] S110, establishing a water level control model to represent the law of the initial reservoir water level changing over time. The water level control model is formula (1):

[0080] Z=Z0+∫(Q in -Q out +p)dt(1)

[0081] Among them, Z is the real-time changing water level of the reservoir, Z0 is the initial water level of the reservoir, Q in is the water inflow into the reservoir, Q out is the outflow of the reservoir, and p is the real-time rainfall;

[0082] First, the initial reservoir water level is measured by the water level sensor installed in the reservoir, and a water level control model is established based on the initial reservoir water level and real-time rainfall. By establishing a water level control model, the trend of reservoir water level changes in the future can be predicted. In practical applications, in order to more accurately simulate water level changes, more factors may need to be considered, such as the shape of the reservoir, the relationship between water level and volume, and leakage losses. In addition, a more complex dynamic model can be introduced according to actual conditions to consider the inertia and hysteresis effects of water level changes.

[0083] S111, calculating the deviation between the initial water level of the reservoir and the target water level, that is, the difference between the initial water level of the reservoir and the target water level, where the target water level is the middle value between the upper limit and the lower limit of the preset water level range;

[0084] First, the upper and lower limits of the preset water level range are obtained, and then the target water level is calculated, which is the middle value between the upper and lower limits of the preset water level range.

[0085] In addition, the initial reservoir water level is obtained, and the deviation between the initial reservoir water level and the target water level is calculated, that is, the difference between the initial reservoir water level and the target water level.

[0086] S112. According to the water level control model, the output of the proportional-integral-differential (PID) controller is calculated using the PID controller algorithm. The PID controller is used to control the operating rate of the pump valve of the reservoir. The calculation formula (2) is as follows:

[0087]

[0088] Where u(t) is the output of the PID controller, K p is the proportional coefficient of the PID controller, K i is the integral coefficient of the PID controller, K d is the differential coefficient of the PID controller, e(t) is the deviation between the initial reservoir water level and the target water level;

[0089] First, obtain the deviation between the initial reservoir water level and the target water level, and then set the proportional coefficient (K p )、Integral coefficient (K i ) and differential coefficient (K d ), the setting method is as follows:

[0090] Set the initial values ​​of the proportional coefficient, integral coefficient, and differential coefficient. You can make preliminary estimates based on experience or system characteristics.

[0091] Use trial and error to optimize the parameters of the PID controller. The specific steps are as follows:

[0092] a. Set a suitable initial water level setting value and start the operation of the PID controller;

[0093] b. Observe the response of the system, including the rise or fall of the water level and the fluctuation after stabilization;

[0094] c. According to the observed system response, gradually adjust the proportional coefficient, integral coefficient and differential coefficient to achieve the desired control effect. This can be achieved by increasing or decreasing the value of each coefficient;

[0095] d. After the adjustment is completed, observe the system response again and evaluate it. If the control effect meets the requirements, the parameters can be fixed; if not, continue to adjust the parameters until the desired control effect is achieved.

[0096] After multiple trial-and-error parameter adjustments or iterations of the adaptive control algorithm, appropriate proportional coefficients, integral coefficients, and differential coefficients are obtained to achieve good control performance.

[0097] Finally, according to formula (2), in each time step, the differential term It can also be expressed as K d *(Current deviation - last deviation), based on the current deviation and the last deviation, the corresponding output is calculated using the PID controller algorithm.

[0098] S113. According to the output of the PID controller, the operating speed of the water reservoir pump and valve is adjusted. The operating speed of the water reservoir pump and valve includes the operating speed of the water reservoir inlet pump and the operating speed of the water reservoir outlet pump.

[0099] According to the output of the PID controller calculated in step S112, a control signal value is obtained. This control signal value can be a specific value or a relative instruction, indicating that the operation speed of the pump valve needs to be increased or decreased.

[0100] For the operation speed adjustment of the water tank inlet pump:

[0101] a. If the control signal value is positive (or an increase instruction), the running speed of the water inlet pump of the water reservoir is increased. This can be achieved by increasing the supply voltage of the water inlet pump or adjusting its speed;

[0102] b. If the control signal value is negative (or a decrease instruction), the running speed of the water inlet pump of the water reservoir is reduced. This can be achieved by reducing the supply voltage of the water inlet pump or adjusting its speed.

[0103] For the running speed adjustment of the water tank outlet pump:

[0104] a. If the control signal value is positive (or an increase instruction), the running speed of the water outlet pump of the water reservoir will be increased. This can be achieved by increasing the supply voltage of the water outlet pump or adjusting its speed;

[0105] b. If the control signal value is negative (or a decrease instruction), the running speed of the water outlet pump of the water reservoir is reduced. This can be achieved by reducing the supply voltage of the water outlet pump or adjusting its speed.

[0106] Finally, the adjustment of the pump and valve operating speed also requires the use of corresponding control equipment and algorithms, such as frequency converters to control the motor speed, etc. In addition, the pump and valve response time and the system inertia must be evaluated to determine the reasonable range of adjustment rate and amplitude to avoid system instability or excessive control errors caused by too fast or too slow adjustments.

[0107] S12, obtain water quality indicators, including suspended solids content (SS) in the reservoir, organic content (COD) in the reservoir, SS in the clear water tank, COD in the clear water tank, SS in the reuse pipe, COD in the reuse pipe, and upload the water quality indicators to the cloud platform; first, install water quality testing equipment at important locations such as the reservoir, the clear water tank and the reuse pipe, including suspended solids measuring instruments, COD measuring instruments, etc., to ensure the accuracy and reliability of the test data. Then set the test cycle according to the water quality monitoring requirements and monitoring frequency. For example, water quality testing can be performed once an hour or a day. Secondly, in each test cycle, start the water quality testing equipment to obtain water quality indicator data, including suspended solids content (SS) in the reservoir, organic content (COD) in the reservoir, SS in the clear water tank, COD in the clear water tank, SS in the reuse pipe and COD in the reuse pipe. In addition, the water quality indicator data obtained from each test is processed and stored, including data cleaning, deduplication, calculation of average value, etc. Finally, the processed water quality indicator data is uploaded to the cloud platform for data analysis and processing. The uploading method is realized through IoT devices, sensors, data collectors, etc.

[0108] S13, analyzing water quality indicators, and generating an over-standard warning when the water quality indicators exceed a preset threshold;

[0109] First, determine the water quality indicators that need to be monitored and the corresponding preset thresholds according to relevant standards, regulations or actual needs. For example, the preset threshold of suspended solids content (SS) in a reservoir is 50 mg / L, and the preset threshold of organic matter content (COD) is 30 mg / L. Then compare the water quality index data obtained from each monitoring with the preset threshold to determine whether it exceeds the preset threshold. Once it is found that the water quality index exceeds the preset threshold, an over-limit warning needs to be generated. This can be done in the following ways:

[0110] a. Send alarm notification: send the exceeding information to relevant personnel, including operation and maintenance personnel, management personnel, etc. Alarm notification can be sent via email, SMS, instant messaging tools, etc.

[0111] b. Display warning information: Display warning information on the interface of the rainwater dynamic monitoring subsystem to remind relevant personnel to take timely measures.

[0112] S14, receiving an over-limit warning, sending a command to close the corresponding pumps and valves in the water storage tank, the clean water tank, and the recycling pipe;

[0113] First, an over-standard warning is detected and the corresponding operation is automatically triggered. After receiving the over-standard warning, the source and specific indicators of the over-standard warning must be confirmed first. This information can be obtained through the interface of the rainwater dynamic monitoring subsystem or related alarm notifications. Then, according to the source of the over-standard warning, the pumps and valves in the reservoir, clear water tank and recycling pipe that need to be closed are determined. These pumps and valves can be located through the system's equipment layout diagram, identification or on-site inspection. Send a shutdown command to the relevant pump and valve equipment. The specific operation method depends on the system's control method. It can be manual operation or a command sent through an automatic control system. Once the shutdown command is sent, the equipment status needs to be monitored to ensure that the equipment has correctly performed the shutdown operation. The equipment status can be confirmed through the system's monitoring interface, sensor feedback or on-site inspection.

[0114] S15, obtaining soil moisture of greening, and uploading the soil moisture to the cloud platform;

[0115] The following specific implementation processes can be adopted:

[0116] Select soil moisture sensor: Choose a soil moisture sensor suitable for the greening environment. You can choose the appropriate type according to your needs, such as resistive sensor, capacitive sensor, or frequency domain reflectometry sensor. Make sure the sensor can accurately measure soil moisture and is compatible with the cloud platform.

[0117] Deploy sensors: Soil moisture sensors should be arranged reasonably according to plant distribution and soil characteristics. Sensors usually need to be buried in the soil, and attention should be paid to the installation depth and location to ensure that the sensors can accurately read soil moisture.

[0118] Connect the sensor to the data acquisition device: Connect the soil moisture sensor to the data acquisition device (such as a microcontroller or IoT device). Select the appropriate connection method (such as analog input, digital interface, or serial port, etc.) according to the interface type of the sensor and the communication method of the data acquisition device.

[0119] Data acquisition and processing: Use data acquisition equipment to collect soil moisture data obtained by sensors.

[0120] Connect to the cloud platform: Use a suitable communication method to send the processed soil moisture data to the cloud platform. You can choose to use the API or protocol provided by the cloud platform to establish a connection with the cloud platform and upload the data.

[0121] Data upload and storage: After establishing a connection with the cloud platform, upload the soil moisture data to the cloud platform according to the requirements of the cloud platform. The cloud platform will provide corresponding interfaces and documents for data upload and storage, which can be configured and adjusted according to actual needs.

[0122] S16, when the soil humidity is lower than the preset humidity range, send a command to open the corresponding pump valve in the recycling pipe so that the soil humidity is kept within the preset humidity range;

[0123] First, a preset humidity range is set in the system, and the lower and upper limits are determined according to the needs of the plants. Secondly, the soil moisture data is monitored and analyzed on the cloud platform. When the soil moisture is lower than the lower limit, the control system sends a corresponding opening instruction to the pump valve in the recycling pipe to supply the plant with an appropriate amount of water. The pump valve in the recycling pipe operates according to the received opening instruction and supplies an appropriate amount of water to the roots of the plant to maintain the soil moisture within the preset range. Finally, the system continuously monitors the soil moisture and determines whether the pump valve needs to be kept open based on real-time data. At the same time, the control system can provide corresponding feedback information, such as sensor data and pump valve status.

[0124] S17. Obtain the flow of the reuse pipe and upload the flow of the reuse pipe to the cloud platform.

[0125] Install the flow sensor: Select a suitable return pipe flow sensor, such as an electromagnetic flowmeter, vortex flowmeter, etc., and install it on the return pipe according to the instructions. It is usually installed on the straight section of the pipeline to ensure accurate measurement.

[0126] Connect the sensor to the data acquisition device: Connect the flow sensor to the data acquisition device. The data acquisition device can be a PLC (Programmable Logic Controller), a data acquisition module, or an IoT device. Make sure the sensor can transmit the flow data to the data acquisition device.

[0127] Configure data acquisition equipment: Configure the data acquisition equipment, including setting parameters such as sensor type, communication protocol, sampling frequency, etc. to ensure accurate acquisition of flow sensor data.

[0128] Connect data acquisition equipment to the cloud platform: Use appropriate communication equipment (such as Ethernet, Wi-Fi module) to connect the data acquisition equipment to the cloud platform. You can use an existing IoT platform or a self-built data upload channel to ensure that traffic data can be transmitted to the cloud platform.

[0129] Upload data to the cloud platform: Configure the data collection device so that it can upload traffic data to the cloud platform at predetermined time intervals or event triggers. Data upload is usually carried out through protocols such as HTTP and MQTT.

[0130] S2. Methods for evaluating the efficiency of rainwater resource utilization; see Figure 4 , comprising steps S20-S23:

[0131] S20, calculating the water level increment of the reservoir, evaluating the rainwater utilization rate according to the real-time rainfall and the water level increment of the reservoir, and uploading the rainwater utilization rate to the cloud platform;

[0132] First, determine the time range in which rainwater utilization needs to be evaluated. For example, count the total rainfall and total increase in the reservoir within one month, divide the total increase in the reservoir by the total rainfall, and multiply by 100 to get the percentage of rainwater utilization within one month. Then upload the rainwater utilization rate to the cloud platform.

[0133] S21. Comprehensively evaluate the rainwater purification rate based on the water storage tank SS, water storage tank COD, recycling pipe SS, recycling pipe COD, and upload the rainwater purification rate to the cloud platform;

[0134] First, a water quality monitoring point is set up in the reservoir to monitor and record the water quality indicators during rainfall. Secondly, the rainwater in the reservoir needs to be simply precipitated, filtered and disinfected. The treated rainwater enters the reuse pipe, and a water quality monitoring point is set up in the reuse pipe to monitor and record the water quality indicators of the treated rainwater. Finally, the water quality index data before and after treatment are compared to calculate the changes in suspended solids content (SS) and organic matter content (COD). According to the changes, the SS purification rate and COD purification rate are calculated respectively, and the SS purification rate and COD purification rate are comprehensively evaluated. The two purification rates can be simply averaged, or different indicators can be given different importance according to actual needs and weights, and the rainwater purification rate obtained after comprehensive evaluation can be uploaded to the cloud platform.

[0135] S22. Evaluate the rainwater discharge rate based on the real-time rainfall and the water level increment of the reservoir, and upload the rainwater discharge rate to the cloud platform;

[0136] First, determine the time range in which the rainwater discharge rate needs to be evaluated. For example, count the total rainfall and total increase in the reservoir within one month, calculate the difference between the total rainfall and the total increase in the reservoir, divide the difference by the total rainfall, and multiply by 100 to get the percentage of the rainwater discharge rate within one month. The rainwater discharge rate can then be uploaded to the cloud platform.

[0137] S23. Evaluate the amount of water saved based on the flow rate of the reuse pipe, and upload the amount of water saved to the cloud platform.

[0138] First, determine the time range for evaluating water conservation, for example, to count water conservation within 1 month. According to the return pipe flow uploaded to the cloud platform in step S17, the return pipe flow within 1 month is obtained to obtain water conservation within 1 month, and the water conservation is uploaded to the cloud platform.

[0139] S3. Methods for charging and managing rainwater resource utilization; see Figure 5 , including steps S30-S32:

[0140] S30, counting water consumption according to the flow of the recycling pipe, and uploading the water consumption to the cloud platform;

[0141] The water consumption is the water saving. Therefore, in the embodiment of the present application, step S30 is similar to the above step S23, and will not be described again here to avoid repetition.

[0142] S31. Count the fees to be paid according to the water consumption, and upload the fees to be paid to the cloud platform;

[0143] First, set the corresponding rates on the cloud platform, and determine the calculation method of the fees to be paid according to different water consumption ranges or billing rules. You can set segmented billing, tiered billing or unified billing. Ensure the accuracy and rationality of the rates. Secondly, establish a database on the cloud platform to store the collected water consumption data and the calculated fees to be paid. Ensure the security, integrity and reliability of the data. Finally, use data analysis tools to process and analyze the collected water consumption data, calculate the fees according to the rate settings, and count the fees to be paid. You can classify and count the fees according to different time periods, regions or user types. And upload the fees to be paid to the cloud platform.

[0144] S32. Generate a visual report based on the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, water saving, water consumption, and fees to be paid, and upload the visual report to the cloud platform.

[0145] First, the data are called out from the databases on the cloud platform.

[0146] Secondly, generate report data for rainwater utilization rate, rainwater purification rate, rainwater discharge rate, water saving, water consumption and fees to be paid. At the same time, select appropriate data visualization tools (such as Tableau, Power BI, etc.) to visualize the data in the form of charts, statistical charts, etc.

[0147] Finally, customize the report content and style according to the needs, including trend analysis, comparative analysis, geographic information presentation, etc. of various indicators. Ensure that the report is clear and easy to understand, and can intuitively reflect the changes and correlations of various data indicators. At the same time, provide report export function to facilitate users to save or share report data.

[0148] Report access and permission control: Set report access permissions on the cloud platform to ensure that only authorized users can view and download relevant reports. At the same time, different report access permissions and data display content can be customized according to user roles and needs.

[0149] The implementation principle of this embodiment is:

[0150] The method of dynamic monitoring of rainwater: firstly, the real-time rainfall in the current area is obtained, and the output of the PID controller is calculated using the PID controller algorithm according to the obtained initial water level of the reservoir, and then the operation rate of the pump valve of the reservoir is adjusted according to the output of the PID controller, so that the real-time changing water level of the reservoir is kept within the preset water level range; then the water quality indicators of the reservoir, the clean water tank and the return pipe are obtained, and the collected water quality indicators are analyzed. When the water quality indicators exceed the preset threshold, an over-standard warning is generated, and when the over-standard warning is received, an instruction is sent to close the corresponding pump valves in the reservoir, the clean water tank and the return pipe; finally, it also includes the method of irrigating greening, obtaining the soil moisture of the greening, and when the soil moisture is lower than the preset humidity range, an instruction is sent to open the corresponding pump valve in the return pipe, so that the soil moisture remains within the preset humidity range, and the flow of the return pipe is obtained. All the above acquired data are uploaded to the cloud platform, and the data are analyzed, processed and calculated on the cloud platform.

[0151] The method of evaluating the efficiency of rainwater resource utilization is as follows: first, the real-time rainfall and initial reservoir water level are obtained from the cloud platform to evaluate the rainwater utilization rate; secondly, the water quality indicators of the reservoir and the return pipe are obtained from the cloud platform to comprehensively evaluate the rainwater purification rate; in addition, the real-time rainfall and initial reservoir water level are obtained from the cloud platform to evaluate the rainwater discharge rate; finally, the flow of the reuse pipe is obtained from the cloud platform to evaluate the water saving. All the data obtained from the above evaluation are uploaded to the cloud platform, and the data are analyzed, processed, and calculated on the cloud platform.

[0152] The method of charging management for rainwater resource utilization is as follows: first, the flow of the reuse pipe is obtained from the cloud platform, and the water consumption is counted; second, the water consumption is obtained from the cloud platform, and the fees to be paid are counted; finally, the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, water saving, water consumption, and fees to be paid are obtained from the cloud platform, and a visual report is generated. All the data obtained from the above statistics are uploaded to the cloud platform, and the data are analyzed, processed, and calculated on the cloud platform.

[0153] The embodiment of the present application also provides a sponge city rainwater integrated management system, including a rainwater dynamic monitoring subsystem, a rainwater resource utilization efficiency evaluation subsystem, a rainwater resource utilization fee management subsystem and a user terminal subsystem.

[0154] The rainwater dynamic monitoring subsystem is used to monitor the rainfall and the initial water level of the water reservoir in real time, upload the real-time rainfall and the initial water level of the water reservoir to the cloud platform, adjust the operation rate of the water reservoir pump and valve according to the real-time rainfall and the initial water level of the water reservoir, and is also used to monitor the water quality index in real time, upload the water quality index to the cloud platform, and the cloud platform analyzes the water quality index. When the water quality index exceeds the preset threshold, an over-standard warning is generated to control the corresponding pumps and valves in the water reservoir, the clear water tank and the reuse pipe; the rainwater resource utilization efficiency evaluation subsystem is used to evaluate the rainwater utilization rate, rainwater purification rate, rainwater discharge rate and water saving, and upload the rainwater utilization rate, rainwater purification rate, rainwater discharge rate and water saving to the cloud platform;

[0155] The rainwater resource utilization fee management subsystem is used to count water consumption and fees to be paid, generate visual reports, and upload water consumption, fees to be paid, and visual reports to the cloud platform;

[0156] The user terminal subsystem is used to obtain the real-time monitoring data of rainfall, initial reservoir water level and water quality indicators uploaded by the rainwater dynamic monitoring subsystem from the cloud platform, and is also used to receive the over-standard warning sent by the cloud platform. It is also used to obtain the rainwater utilization rate, rainwater purification rate, rainwater discharge rate and water saving uploaded by the rainwater resource utilization efficiency evaluation subsystem from the cloud platform. It is also used to obtain the water consumption statistics, fees to be paid and visual reports uploaded by the rainwater resource utilization charging management subsystem from the cloud platform.

[0157] In this embodiment, the rainwater dynamic monitoring subsystem may monitor the real-time rainfall, the water level of the reservoir, and the water quality index, and dynamically adjust the operating rate of the reservoir pump and valve. When the water quality index exceeds the preset threshold, an over-standard warning is generated, and then the corresponding pumps and valves in the reservoir, the clean water tank and the reuse pipe are controlled, and all the monitored data are uploaded to the cloud platform, and the data are analyzed, processed and calculated on the cloud platform; the rainwater resource utilization efficiency evaluation subsystem first obtains the real-time rainfall and the initial reservoir water level from the cloud platform to evaluate the rainwater utilization rate, and then obtains the water quality index of the reservoir and the return pipe from the cloud platform to comprehensively evaluate the rainwater purification rate. In addition, the real-time rainfall and the initial reservoir water level are obtained from the cloud platform to evaluate the rainwater discharge rate, and finally the flow of the reuse pipe is obtained from the cloud platform to evaluate the water saving. All the data obtained from the above evaluation are uploaded to the cloud platform, and the data are analyzed, processed and calculated on the cloud platform; the rainwater resource utilization fee management subsystem first obtains the flow of the reuse pipe from the cloud platform and counts the water consumption; secondly, it obtains the water consumption from the cloud platform and counts the fees to be paid; finally, it obtains the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, water saving, water consumption, and fees to be paid from the cloud platform to generate a visual report. All the data obtained from the above statistics are uploaded to the cloud platform, and the data are analyzed, processed and calculated on the cloud platform; the user terminal system obtains the real-time rainfall, initial reservoir water level and water quality index real-time monitoring data uploaded by the rainwater dynamic monitoring subsystem from the cloud platform, and then receives the over-standard warning sent by the cloud platform. In addition, it obtains the rainwater utilization rate, rainwater purification rate, rainwater discharge rate and water saving uploaded by the rainwater resource utilization efficiency evaluation subsystem from the cloud platform, and finally obtains the water consumption statistics, fees to be paid and visual reports uploaded by the rainwater resource utilization fee management subsystem from the cloud platform.

[0158] In a possible implementation, a sponge city rainwater integrated management system also includes: a rainwater dynamic monitoring subsystem including a rainfall monitoring module, a pump and valve first control module, a water quality monitoring module, an over-standard alarm module, a pump and valve second control module, a soil moisture acquisition module, a pump and valve third control module, and a flow statistics module; a rainwater resource utilization efficiency evaluation subsystem including a rainwater utilization rate evaluation module, a rainwater purification rate evaluation module, a rainwater discharge rate evaluation module, and a water saving evaluation module; a rainwater resource utilization fee management subsystem including a water consumption statistics module, a payment statistics module, and a report center module; and a user terminal subsystem including a PC terminal, a mobile phone APP terminal, and a mini program terminal.

[0159] It should be noted that: when the system provided in the above embodiment realizes its functions, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0160] The embodiment of the present application provides a sponge city rainwater integrated management system. The sponge city rainwater integrated management system may include: at least one processor, at least one network interface, a user interface, a memory, and at least one communication bus.

[0161] The processor is used to call a sponge city rainwater integrated management method stored in a memory. When executed by one or more processors, the sponge city rainwater integrated management system executes one or more of the methods described in the above embodiments.

[0162] An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned embodiment of a method for comprehensive management of rainwater in a sponge city is implemented. To avoid repetition, it is not repeated here.

[0163] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present application.

[0164] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A method for comprehensive management of rainwater in a sponge city, characterized in that: include: Obtaining real-time rainfall in the current area and uploading the real-time rainfall to the cloud platform; Acquiring an initial water level of a water reservoir, establishing a water level control model according to the initial water level of the water reservoir and the real-time rainfall, and calculating the output of a PID controller using a proportional-integral-differential PID controller algorithm according to the water level control model, and then adjusting the operating rate of a water reservoir pump valve according to the output of the PID controller so that the real-time changing water level of the water reservoir is maintained within a preset water level range, including: A water level control model is established to represent the law of the initial reservoir water level changing over time. The water level control model is: ； in, is the real-time changing water level of the reservoir. is the initial reservoir water level, is the water inflow into the reservoir, is the outflow rate of the reservoir, Real-time rainfall; Calculate the deviation between the initial water level of the reservoir and the target water level, that is, the difference between the initial water level of the reservoir and the target water level, wherein the target water level is the middle value between the upper limit and the lower limit of the preset water level range; According to the water level control model, the proportional-integral-differential PID controller algorithm is used to calculate the output of the PID controller, which is used to control the operating rate of the reservoir pump valve. The calculation formula is as follows: ； in, is the output of the PID controller, is the proportional coefficient of the PID controller, is the integral coefficient of the PID controller, is the differential coefficient of the PID controller, is the deviation between the initial reservoir water level and the target water level; According to the output of the PID controller, the operating speed of the water reservoir pump valve is adjusted, and the operating speed of the water reservoir pump valve includes the operating speed of the water reservoir inlet pump and the operating speed of the water reservoir outlet pump; Obtain water quality indicators, including suspended solids content SS in the water reservoir, organic matter content COD in the water reservoir, SS in the clear water reservoir, COD in the clear water reservoir, SS in the recycling pipe, and COD in the recycling pipe, and upload the water quality indicators to the cloud platform; Analyzing the water quality index, and generating an over-standard warning when the water quality index exceeds a preset threshold; Upon receiving the over-limit warning, an instruction is sent to close the corresponding pumps and valves in the water storage tank, the clean water tank and the recycling pipe.

2. The method according to claim 1, characterized in that The method further comprises: Obtain soil moisture of greening and upload the soil moisture to the cloud platform; When the soil moisture is lower than a preset humidity range, a command is sent to open a corresponding pump valve in the recycling pipe so that the soil moisture is kept within the preset humidity range; The flow rate of the recycling pipe is obtained, and the flow rate of the recycling pipe is uploaded to the cloud platform.

3. The method according to claim 1, characterized in that The method further comprises: Calculate the water level increment of the reservoir, evaluate the rainwater utilization rate according to the real-time rainfall and the water level increment of the reservoir, and upload the rainwater utilization rate to the cloud platform; Comprehensively evaluate the rainwater purification rate based on the water storage tank SS, the water storage tank COD, the recycling pipe SS, and the recycling pipe COD, and upload the rainwater purification rate to the cloud platform; According to the real-time rainfall and the water level increment of the reservoir, a rainwater discharge rate is evaluated, and the rainwater discharge rate is uploaded to a cloud platform; The water saving amount is evaluated according to the flow rate of the recycling pipe, and the water saving amount is uploaded to the cloud platform.

4. The method according to claim 1, characterized in that: The method further comprises: According to the flow rate of the recycling pipe, the water consumption is counted and the water consumption is uploaded to the cloud platform; According to the water consumption, the fees to be paid are counted, and the fees to be paid are uploaded to the cloud platform; A visual report is generated based on the rainwater utilization rate, the rainwater purification rate, the rainwater discharge rate, the water saving amount, the water consumption, and the fees to be paid, and the visual report is uploaded to the cloud platform.

5. A sponge city rainwater integrated management system, which implements the method described in any one of 1-4 above, characterized in that: The system comprises: A rainwater dynamic monitoring subsystem is used to monitor rainfall and initial water level of a water reservoir in real time, upload the real-time rainfall and the initial water level of a water reservoir to a cloud platform, adjust the operation rate of a water reservoir pump and valve according to the real-time rainfall and the initial water level of a water reservoir, and is also used to monitor water quality indicators in real time, upload the water quality indicators to a cloud platform, and the cloud platform analyzes the water quality indicators. When the water quality indicators exceed a preset threshold, an over-standard warning is generated, thereby controlling the corresponding pumps and valves in the water reservoir, the clean water tank, and the reuse pipe; A rainwater resource utilization efficiency evaluation subsystem is used to evaluate the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, and water saving, and upload the rainwater utilization rate, rainwater purification rate, rainwater discharge rate, and water saving to a cloud platform; The rainwater resource utilization fee management subsystem is used to count water consumption and fees to be paid, generate visual reports, and upload the water consumption, fees to be paid, and visual reports to the cloud platform; The user terminal system is used to obtain the real-time monitoring data of the real-time rainfall, the initial water tank water level and the water quality index uploaded by the rainwater dynamic monitoring subsystem from the cloud platform, and is also used to receive the over-standard warning sent by the cloud platform. It is also used to obtain the rainwater utilization rate, rainwater purification rate, rainwater discharge rate and water saving uploaded by the rainwater resource utilization efficiency evaluation subsystem from the cloud platform, and is also used to obtain the water consumption statistics, fees to be paid and visual reports uploaded by the rainwater resource utilization charging management subsystem from the cloud platform.

6. The system according to claim 5, characterized in that The rainwater dynamic monitoring subsystem includes: A rainfall monitoring module is used to obtain the real-time rainfall in the current area and upload the real-time rainfall to the cloud platform; The first pump and valve control module is used to obtain the initial water level of the reservoir, establish a water level control model according to the initial water level of the reservoir and the real-time rainfall, and calculate the output of the PID controller using a proportional-integral-differential PID controller algorithm according to the water level control model, and then adjust the operation rate of the pump and valve of the reservoir according to the output of the PID controller, so that the real-time changing water level of the reservoir is maintained within a preset water level range; A water quality monitoring module is used to obtain water quality indicators, including the suspended solids content SS of the water reservoir, the organic matter content COD of the water reservoir, the clear water tank SS, the clear water tank COD, the recycling pipe SS, the recycling pipe COD, and upload the water quality indicators to the cloud platform; An over-standard alarm module is used to analyze the water quality index and generate an over-standard alarm when the water quality index exceeds a preset threshold; The second pump and valve control module is used to receive the over-standard warning and send instructions to close the corresponding pumps and valves in the water storage tank, the clean water tank and the recycling pipe.

7. The system according to claim 5, characterized in that The rainwater dynamic monitoring subsystem also includes: A soil moisture acquisition module is used to acquire the soil moisture of the greening area and upload the soil moisture to the cloud platform; The third pump and valve control module is used to send a command to open the corresponding pump and valve in the recycling pipe when the soil moisture is lower than the preset humidity range, so that the soil moisture is kept within the preset humidity range; The flow statistics module is used to obtain the flow of the recycling pipe and upload the flow of the recycling pipe to the cloud platform.

8. The system according to claim 5, characterized in that The rainwater resource utilization efficiency evaluation subsystem includes: A rainwater utilization rate evaluation module is used to calculate the water level increment of the water storage tank, evaluate the rainwater utilization rate according to the real-time rainfall and the water level increment of the water storage tank, and upload the rainwater utilization rate to the cloud platform; A rainwater purification rate evaluation module is used to comprehensively evaluate the rainwater purification rate according to the water storage tank SS, the water storage tank COD, the recycling pipe SS, and the recycling pipe COD, and upload the rainwater purification rate to the cloud platform; A rainwater discharge rate evaluation module, used to evaluate the rainwater discharge rate according to the real-time rainfall and the water level increment of the reservoir, and upload the rainwater discharge rate to the cloud platform; The water saving evaluation module is used to evaluate the water saving according to the flow rate of the recycling pipe and upload the water saving to the cloud platform.

9. The system according to claim 5, characterized in that The rainwater resource utilization fee management subsystem includes: A water consumption statistics module is used to count the water consumption according to the flow of the recycling pipe and upload the water consumption to the cloud platform; A payment statistics module is used to count the fees to be paid according to the water consumption, and upload the fees to be paid to the cloud platform; The report center module is used to generate a visual report based on the rainwater utilization rate, the rainwater purification rate, the rainwater discharge rate, the water saving amount, the water consumption, and the fees to be paid, and upload the visual report to the cloud platform.

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