A spatial planning method for urban rainwater storage

Abstract

The present invention discloses a method for planning urban rainwater storage and regulation space, which relates to the field of rainwater storage and regulation technology, and solves the problem of not performing comprehensive analysis based on the water storage capacity of a specific water storage space and the storage and regulation capacity of a corresponding area to determine the optimal discharge time. The present invention targets the storage and regulation capacity of an associated area of ​​a corresponding city and a corresponding rainfall forecast, and confirms in real time a corresponding water flow increment curve generated during a corresponding rainfall process, and then performs a comprehensive analysis based on the actual water storage capacity of the corresponding water storage space to lock the drainage time of the corresponding water storage space, and performs associated drainage processing at the drainage time to ensure the rainwater storage and regulation capacity of the corresponding city, achieve a better storage and regulation effect, and perform compliance planning analysis on the remaining water storage space to achieve a better flood storage processing capacity.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater and flood storage, and in particular to a method for urban rainwater and flood storage space planning. Background Art

[0002] Urban stormwater storage refers to the process of regulating, storing, discharging and utilizing rainwater and flood water generated by rainfall in urban areas through a series of engineering and non-engineering measures; its purpose is to alleviate urban waterlogging, reduce flood risks, improve urban water environment and improve the utilization efficiency of rainwater resources.

[0003] The application with announcement number CN117875216B discloses a method, device and medium for determining the rainwater storage rate based on the elastic coefficient method, which relates to the technical field of urban flood control and drainage management, and can solve the problem of how to match a suitable rainwater storage rate for the city. The method includes: obtaining the storage parameters of the preset area; generating a hydrodynamic generalization model of the preset area; determining the peak reduction flow set according to the preset storage rate set and the flood peak flow set; determining the rainwater storage rate set according to the peak reduction flow set and the preset weir flow formula; counting the storage volume set corresponding to the rainwater storage rate set; then determining the rainwater elastic coefficient set; obtaining the growth inflection point of the elastic coefficient in the rainwater elastic coefficient set, and determining the storage rate corresponding to the growth inflection point as the target rainwater storage rate. In this way, by determining the target rainwater storage rate, the scientific rationality of the planning scheme is improved, and the contradiction between urban development and construction and river widening is reduced.

[0004] When regulating rainwater and flood within the city, comprehensive regulation is generally carried out according to the corresponding water storage space surplus, and whether the corresponding regulation and storage process can be met during the corresponding rainfall process is analyzed. If the corresponding regulation and storage process cannot be met, an early warning display is made for the intervention of relevant operators. However, the original data analysis method is relatively simple and does not conduct a comprehensive analysis based on the water storage capacity of the specific water storage space and the regulation and storage capacity of the corresponding area, so as to determine whether the corresponding water storage space needs to discharge the corresponding water source, and determine the best discharge time during the analysis stage to facilitate the specific management work of the management personnel. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a method for urban rainwater storage space planning, which solves the problem of not determining the optimal discharge time based on a comprehensive analysis of the water storage capacity of a specific water storage space and the storage capacity of the corresponding area.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method for urban rainwater storage space planning, comprising the following steps:

[0007] Step 1: Based on several pre-calibrated different areas in the city, the trunk pipelines and branch pipelines in the corresponding areas are confirmed based on the pipeline layout network of the city. By analyzing the water flow between the trunk pipeline and the corresponding branch pipeline from the historical completion data, the storage energy parameters of the corresponding area are determined. The specific sub-steps are:

[0008] S11. From the historical completion data, identify the total rainfall in the corresponding area in a single rainfall record and mark it as JY i-k , where i represents different regions, k represents different rainfall records, and then the total flow ZL of the branch pipelines in this region into the main pipeline in this rainfall record is identified i-k ;

[0009] S12, using Xs i-k =JY i-k -ZL i-k Confirm the water storage value Xs generated in the corresponding area in the corresponding rainfall record i-k , and then extract several groups of rainfall records from the same area and determine the Xs of the corresponding rainfall records i-k , the number of groups is not less than 10, and the number of groups Xs belonging to the same area i-k Perform mean processing to determine the storage energy parameter TX belonging to this area. i For other areas, the same method is used to lock the corresponding storage energy parameters TX i ;

[0010] Step 2: Based on the different storage parameters confirmed in different areas of the city and the corresponding water storage surplus of the urban water storage space, it is evaluated whether the rainfall associated with the current rainfall forecast can be stored, and based on the specific evaluation results, a storage signal or a storage signal is generated:

[0011] S21, mark the relevant area covered by the current rainfall forecast as the area to be processed, and obtain the specific rainfall amount of the area to be processed during this rainfall process from the rainfall forecast. i , and then based on the storage energy parameter TX of the corresponding area to be processed i , determine the associated margin of the area to be processed: GX i =JL i -TX i , if GX i <0, then this GX i The correlation parameter is recorded as 0, and the processed groups of correlation margins GX i Perform summation to determine the total capacity ZR of several areas to be processed;

[0012] S22, based on the water storage space associated with the corresponding city, identifying the water storage margin YL of the water storage space, if YL-ZR>Y2, where Y2 is a preset value, generating a storage signal for display;

[0013] If YL-ZR≤Y2, a regulation signal is generated;

[0014] Step 3: Based on the generated regulation and storage signal, confirm the rainfall record associated with the current rainfall from the historical completion data, confirm the inflow characteristics generated by different regions on the trunk pipeline from the rainfall records, and confirm the water flow increment curve generated on the corresponding trunk pipeline during this rainfall process based on several groups of inflow characteristics. The specific sub-steps are as follows:

[0015] S31, based on the specific rainfall JL of the corresponding area to be processed in the current rainfall forecast i , search for rainfall from historical completion data belonging to (JL i ±Y3), where Y3 is a preset value, and the water flow rate of the corresponding area to be processed entering the main pipeline is identified from the rainfall record. The initial rainfall time of the corresponding rainfall record is recorded as time 0, and the different water flow rates SLL corresponding to different times after time 0 are confirmed from the rainfall record. q , where q represents different moments, and the different SLLs belonging to the same moment in multiple rainfall records are q Perform mean processing and lock the associated water flow mean JZZ q , and then based on the different JZZ corresponding to different moments q , generate a water flow correlation curve belonging to the area to be processed, and the horizontal coordinate axis of the water flow correlation curve is the time line, and the vertical coordinate axis is the water flow rate;

[0016] S32, the other areas to be processed are processed in the same manner as step S31, and the water flow correlation curves belonging to the corresponding areas to be processed are determined, and the time line of each water flow correlation curve is specifically calibrated, and the initial time is 0;

[0017] S33, summarizing the water flow correlation curves generated by the several areas to be processed to obtain the water flow increment curve associated with the main pipeline;

[0018] Step 4: Based on the determined water flow increment curve, the standard discharge volume associated with the water storage space is simultaneously confirmed. Based on the specific value of the standard discharge volume, a corresponding standard line is generated in the coordinate system where the water flow increment curve is located. By analyzing the trend characteristics of the standard line and the water flow increment curve, the standard discharge time is locked.

[0019] Preferably, the total flow ZL i-k Confirmation methods include:

[0020] Determine the branch pipes belonging to the area, determine the rainfall time period T from a single rainfall record, lock a set of search cycles T±Y1, and identify the water flow rate of the corresponding branch pipes entering the main pipe within this search cycle. The water flow rate is monitored and confirmed by the flow sensor set at the confluence entrance, and then the monitored groups of water flow rates are aggregated to obtain the corresponding total flow rate ZL i-k , where Y1 is the preset value, and the specific sub-steps are:

[0021] S41, determining the water storage surplus YL associated with the water storage space, starting from the initial moment of the water flow increment curve, identifying the total inflow generated at the subsequent associated moments, and stopping when the total inflow satisfies: total inflow ≥ YL-Y2, marking the previous moment when the satisfaction is met as the associated moment;

[0022] S42, based on the standard discharge volume associated with the corresponding water storage space, the standard discharge volume is a preset value, confirming the associated parameter corresponding to the standard discharge volume on the vertical coordinate axis of the coordinate system where the water flow increment curve is located, and constructing a standard line perpendicular to the associated parameter;

[0023] S43, from the association moment to the end moment of the water flow increment curve, part of the standard line and part of the water flow increment curve belonging to this period are checked:

[0024] S431, based on the locations of the associated time and the end time, connecting the points corresponding to the standard line and the water flow increment curve at the corresponding time, thereby locking part of the standard line and part of the water flow increment curve;

[0025] S432, the water flow increment curve is located in the area above the partial standard line and in the area below the partial standard line, and the upper area and the lower area are both located in the area covered by the partial standard line and the partial water flow increment curve, and the area M1 of the upper area and the area M2 of the lower area are identified:

[0026] If M1≤M2, it means that the discharge process can be performed, and the determined associated time is directly recorded as the discharge time and displayed;

[0027] If M1>M2, extend the standard line forward, and construct the perpendicular line between the extension point and the horizontal coordinate axis in real time, and simultaneously construct the perpendicular line between the corresponding point of the standard line and the horizontal coordinate axis at the corresponding associated time, record the area between the two perpendicular lines and the extension line of the standard line, divide this area into the lower area until M1≤M2, lock the extension point after extension, and record the time corresponding to the extension point, record the corresponding time as the discharge time and display it;

[0028] Step 5: If the confirmed discharge time is a negative value, then by identifying the time interval between the current time and the rainfall time, assess whether such negative value is a normal negative value or an abnormal negative value, and generate and display the associated processing signal. The specific sub-steps are:

[0029] Lock the time interval JG from the current moment to the rainfall moment, process the discharge moment by absolute value and confirm its associated time length CD;

[0030] If JG<CD, it means that the negative value is a normal negative value, and it will be displayed normally;

[0031] If JG≥CD, it means that this negative value is an abnormal negative value, and a warning signal is generated and displayed.

[0032] Preferably, the summary processing process of the water flow correlation curve is: JZZ associated with the same time q The sum is calculated to obtain the total value associated with the corresponding moment, and then based on the different total values ​​corresponding to the corresponding moment, the associated water flow increment curve is obtained.

[0033] The present invention provides a method for urban rainwater storage space planning. Compared with the prior art, it has the following beneficial effects:

[0034] The present invention determines the regulation and storage capacity of the corresponding area by analyzing the rainfall data of the urban related area, and then identifies the associated flow of the corresponding trunk pipeline based on such regulation and storage capacity and the corresponding rainfall forecast, so as to evaluate whether the water storage space of the corresponding city can meet the corresponding associated flow, and display the signal in real time. In this way, analysis and warning can be carried out in advance to ensure the reasonable planning of urban rain and flood;

[0035] According to the regulation and storage capacity of the corresponding urban related areas and the corresponding rainfall forecast, the corresponding water flow increment curve generated during the corresponding rainfall process is confirmed in real time, and then a comprehensive analysis is conducted based on the actual water storage capacity of the corresponding water storage space to lock the drainage time of the corresponding water storage space, and perform related drainage treatment at the drainage time to ensure the rain and flood regulation and storage capacity of the corresponding city, achieve better regulation and storage effects, and conduct compliance planning analysis on the remaining water storage space to achieve better flood storage and treatment capabilities;

[0036] Subsequently, the positive and negative values ​​of the determined discharge time are confirmed, and timely warning displays are made for abnormal negative values, so that relevant operators can implement early warning protection measures in advance to achieve better protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the process of the present invention;

[0038] Figure 2This is a schematic diagram for determining the discharge timing of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] First embodiment

[0041] See also Figure 1 The present application provides a method for urban rainwater storage space planning, comprising the following steps:

[0042] Step 1: Based on several different areas pre-calibrated in the city, the trunk pipelines and branch pipelines of the corresponding areas are confirmed based on the pipeline layout network of the city. The water flow between the trunk pipeline and the corresponding branch pipeline is analyzed from the historical completion data to determine the storage energy parameters of the corresponding area. Specifically, from the layout map of the city, the relevant operators have divided different areas in advance. Different areas include different branch pipelines, and the branch pipelines will flow into the corresponding trunk pipeline. Corresponding flow sensors are set at the inlet. Based on the specific inflow and rainfall conditions, the rainwater storage capacity of the corresponding area can be locked. During the rainfall process, part of the rainwater will be stored in the gardens, rivers, pits, etc. of the designated area. Therefore, each different area has a certain storage capacity, so that the relevant storage energy parameters can be identified from the corresponding historical completion data. The storage energy parameters are the relevant storage capacity of the corresponding area for rainwater.

[0043] Among them, the specific sub-steps for determining the corresponding regional storage energy parameters are:

[0044] S11. From the historical completion data, identify the total rainfall in the corresponding area in a single rainfall record and mark it as JY i-k , where i represents different regions, k represents different rainfall records, and the single rainfall records are pre-calibrated in the historical completion data, and then the total flow ZL of the branch pipelines in this area that flow into the main pipeline in this rainfall record is identified i-k :

[0045] Its total flow ZL i-kThe confirmation method includes determining the branch pipes belonging to the area, determining the rainfall time period T from a single rainfall record, locking a set of search cycles T±Y1, and identifying the water flow rate of the corresponding branch pipes entering the main pipe within this search cycle. The water flow rate is monitored and confirmed by the flow sensor set at the confluence entrance, and then the monitored groups of water flow rates are aggregated to obtain the corresponding total flow rate ZL i-k , where Y1 is a preset value, and its specific value is determined by the operator based on experience. That is, when rainfall occurs, there is a relevant rainfall record, and the rainfall record contains an associated time period. Based on this time period, the corresponding associated cycle is determined by extending it forward and backward. Because the water flow has a speed during the flow process, the time period is relatively extended here to make the total flow confirmed more accurate;

[0046] S12, using Xs i-k =JY i-k -ZL i-k Confirm the water storage value Xs generated in the corresponding area in the corresponding rainfall record i-k , and then extract several groups of rainfall records from the same area and determine the Xs of the corresponding rainfall records i-k , the number of groups is not less than 10, and the number of groups Xs belonging to the same area i-k Perform mean processing to determine the storage energy parameter TX belonging to this area. i For other areas, the same method is used to lock the corresponding storage energy parameters TX i ;

[0047] Step 2: Based on the different storage parameters confirmed in different areas of the city and the corresponding water storage surplus of the city's water storage space, it is evaluated whether the rainfall associated with the current rainfall forecast can be stored in association, and based on the specific evaluation results, a storage signal or a storage signal is generated (the storage signal represents that the storage parameters and water storage surplus of the corresponding area can fully store the rainfall here, and the storage signal represents that the storage parameters and water storage surplus of the corresponding area cannot meet the storage here, and storage and regulation processing is required), wherein the specific sub-steps of the evaluation are:

[0048] S21, mark the relevant area covered by the current rainfall forecast as the area to be processed, and obtain the specific rainfall amount of the area to be processed during this rainfall process from the rainfall forecast. i (The rainfall here is the total rainfall corresponding to the corresponding area during the current rainfall process), and then based on the storage energy parameter TX of the corresponding area to be processed i , determine the associated margin of the area to be processed: GX i =JL i -TX i , if GX i <0, then this GXi The associated parameter is recorded as 0 (for example, its corresponding GX i If it is a negative value, it means that there is no corresponding flow inflow in the corresponding main pipeline inlet. In the actual analysis and processing, the value here should be recorded as 0). i Perform summation to determine the total capacity ZR of several areas to be processed;

[0049] S22. Based on the water storage space associated with the corresponding city (which can be understood as a large water storage tank or a corresponding reservoir, etc.), identify the water storage margin YL of this water storage space. If YL-ZR>Y2, where Y2 is a preset value, the specific value is determined by the operator based on experience. Because there is a corresponding correlation error, a floating value Y2 needs to be set here to make an association judgment, and a storage signal is generated for display, indicating that the rainfall process involved in this rainfall forecast can be stored normally. If YL-ZR≤Y2, a storage regulation signal is generated, indicating that storage regulation is required and a certain amount of water storage space needs to be released;

[0050] For example: It is proposed that there is a large rainfall process in the current city, involving multiple coverage areas A, B and C, among which A, B and C belong to the corresponding areas to be processed, and the corresponding storage energy parameters of each different area to be processed are 150, 170 and 220;

[0051] For each different area to be processed, there are different total rainfalls of 700, 500 and 400. After being processed by the corresponding formula above, the relevant associated margins can be locked, which are: 550, 330 and 180 respectively, and the generated ZR is: 1060;

[0052] The associated water storage surplus YL takes a value of 1000, so this process generates a corresponding storage and regulation signal, and the storage and regulation signal needs to be displayed in an associated manner. For the storage and regulation signal generated this time, the associated rainwater storage and regulation processing is performed, and the associated water storage space is regulated and released to meet the corresponding dynamic storage and regulation process.

[0053] Second embodiment

[0054] This embodiment is a further embodiment of the first embodiment;

[0055] Step 3: Based on the generated regulation and storage signal, confirm the rainfall record associated with the current rainfall from the historical completion data, confirm the inflow characteristics generated in different areas on the trunk pipeline from the rainfall record, and confirm the water flow increment curve generated on the corresponding trunk pipeline during this rainfall process based on several groups of inflow characteristics. The so-called water flow increment curve is the change of water flow in the corresponding trunk pipeline during the rainfall process. Because the water flow on the corresponding trunk pipeline needs to be inflowed into the water storage space, the dynamic regulation and storage logic of the corresponding water storage space is confirmed in real time by confirming the corresponding water flow increment curve, so as to meet the current water storage space planning effect and ensure the specific dynamic regulation and storage planning process. Among them, the specific sub-steps of confirming the water flow increment curve generated by this rainfall process are as follows:

[0056] S31, based on the specific rainfall JL of the corresponding area to be processed in the current rainfall forecast i , search for rainfall from historical completion data belonging to (JL i ±Y3), where Y3 is a preset value, and its specific value is determined by the operator based on experience. The water flow rate of the corresponding area to be treated entering the main pipeline is identified from the rainfall record, and the initial rainfall time of the corresponding rainfall record is recorded as time 0. The different water flow rates SLL corresponding to different times after time 0 are confirmed from the rainfall record. q , where q represents different moments, and the different SLLs belonging to the same moment in multiple rainfall records are q Perform mean processing and lock the associated water flow mean JZZ q , and then based on the different JZZ corresponding to different moments q , generate a water flow association curve belonging to the area to be processed, and the horizontal coordinate axis of the water flow association curve is the timeline, and the vertical coordinate axis is the water flow rate. Combined with the example: the specific rainfall corresponding to the area to be processed is 200, where Y3 takes the value of 20, then search for the rainfall records associated with 180-220 from the historical completion data. In this rainfall record, there is an associated water flow inflow corresponding to the main pipeline. Because the time period corresponding to each rainfall record is different, the initial moment of the corresponding time period is recorded as time 0, and the associated moments in the subsequent corresponding time period change synchronously. Therefore, the time periods associated with several rainfall records are specifically calibrated, so that the SLL associated with the same moment can be determined. q Then determine the corresponding mean JZZ q , that is, different means are confirmed at different times, so that the relevant water flow correlation curve can be determined;

[0057] S32, the other areas to be processed are processed in the same manner as step S31, and the water flow correlation curves belonging to the corresponding areas to be processed are determined, and the time line of each water flow correlation curve is specifically calibrated, and the initial time is 0 (that is, the initial time of the corresponding rainfall process has been recorded as 0);

[0058] S33, the water flow correlation curves generated by several areas to be processed are aggregated to obtain the water flow increment curve associated with the main pipeline. The aggregation process is as follows: since the corresponding moments are specifically calibrated, the JZZ associated with the same moment are aggregated. q By summing up, the sum value associated with the corresponding moment is obtained, and then based on the different sum values ​​corresponding to the corresponding moment, the summing process can be performed to obtain the associated water flow increment curve;

[0059] Specifically, step three is to confirm the water flow inflow curves generated by several rainfall areas during the corresponding rainfall process, and for these associated inflow curves, identify the corresponding water storage volume entering the corresponding water storage space at different times. After the time is specifically calibrated, specific regulation and storage can be carried out based on the specific water storage conditions of the water storage space to complete a more accurate water storage process.

[0060] Third embodiment

[0061] This embodiment is a further embodiment of the second embodiment;

[0062] Step 4: Based on the determined water flow increment curve, the standard discharge volume associated with the water storage space is confirmed synchronously. Based on the specific value of the standard discharge volume, a corresponding standard line is generated in the coordinate system where the water flow increment curve is located. By analyzing the trend characteristics of the standard line and the water flow increment curve, the standard discharge time is locked. In order to ensure that the water flow generated during large-scale rainfall can be fully stored, it is necessary to lock the best standard discharge time based on the specific water storage process of the corresponding water storage space, so that relevant operators can operate in advance and respond in advance;

[0063] Among them, the specific sub-steps of locking the standard discharge time are:

[0064] S41. Determine the water storage surplus YL associated with this water storage space, and identify the total inflow generated at subsequent associated moments starting from the initial moment of the water flow increment curve. When the total inflow satisfies: total inflow ≥ YL-Y2, the previous moment when it is satisfied is marked as the associated moment. For example, the proposed water storage surplus YL is 1000, and Y2 is 200. It can be identified from the water flow increment curve that: the initial moment is 0, the first moment is 100, and the water flow generated at other subsequent moments is: 150, 200, 180, 600, ..., etc. When the fourth moment is reached, the corresponding demand is met, and then the third moment belongs to the confirmed associated moment;

[0065] S42, based on the standard discharge volume associated with the corresponding water storage space, the standard discharge volume is a preset value, confirming the associated parameter corresponding to the standard discharge volume on the vertical coordinate axis of the coordinate system where the water flow increment curve is located, and constructing a standard line perpendicular to the associated parameter;

[0066] S43, from the association moment to the end moment of the water flow increment curve, part of the standard line and part of the water flow increment curve belonging to this period are checked:

[0067] S431, based on the positions of the associated time and the end time, connecting the points corresponding to the standard line and the water flow increment curve at the corresponding time, thereby locking part of the standard line and part of the water flow increment curve (that is, the two curves form a related area);

[0068] S432, the water flow increment curve is located in the area above the partial standard line and in the area below the partial standard line, and the upper area and the lower area are both located in the area covered by the partial standard line and the partial water flow increment curve, and the area M1 of the upper area and the area M2 of the lower area are identified:

[0069] If M1≤M2, it means that the discharge process can be performed, and the determined associated time is directly recorded as the discharge time and displayed;

[0070] If M1>M2, the standard line is extended forward (that is, the time is pushed forward, for example, if the current time is 4:34, then it is gradually pushed forward to 4:33, 4:32, etc.), and the vertical line between the extension point and the horizontal coordinate axis is constructed in real time, and the vertical line between the corresponding point of the standard line and the horizontal coordinate axis at the corresponding time is constructed synchronously, and the area between the two vertical lines and the extension line of the standard line is recorded, and this area is divided into the lower area until M1≤M2, and the extension point after extension is locked, and the time corresponding to the extension point is recorded, and the corresponding time is recorded as the discharge time and displayed;

[0071] Combination Figure 2, based on the determined water flow increment curve, the corresponding associated parameter is locked on the coordinate system where it is located. This associated parameter corresponds to the standard discharge of the water storage space. Then, based on the specific summation process, the associated moment is locked. From the associated moment onwards, the upper area and the lower area are confirmed. The area where the water flow increment curve is located above the standard line is marked as the upper area, and the area below the standard line is marked as the lower area. Therefore, after the corresponding upper area and lower area are specifically confirmed, the area can be confirmed. When the corresponding confirmation process is satisfied, that is, M1≤M2, the associated moment can be recorded as the discharge moment;

[0072] If the corresponding confirmation process is not satisfied, that is, M1>M2, then extend forward through the determined extension point, and based on the confirmed lower area between the extension line and the corresponding vertical line, perform the sum confirmation of the lower area. Because the confirmed area will also be divided into the lower area, then through gradual extension confirmation, the corresponding M1≤M2 can be made, that is, the corresponding discharge time can be locked based on the related processes confirmed in sequence. Figure 2 If the determined discharge time is a specific negative value, it is necessary to perform a correlation analysis in step 5 to assess whether such a negative value can be processed normally;

[0073] Step 5: If the confirmed discharge time is a negative value, then by identifying the time interval between the current time and the rainfall time, assess whether such negative value is a normal negative value or an abnormal negative value, and generate and display the associated processing signal. The assessment process is as follows:

[0074] Lock the time interval JG from the current moment to the rainfall moment, and then determine the associated time length CD of the discharge moment (that is, treat the negative value as absolute);

[0075] If JG<CD, the display will proceed normally;

[0076] If JG ≥ CD, an early warning signal is generated and displayed, indicating that the large-scale rainfall process here will cause related water overflow, which needs to be dealt with immediately and in a timely manner. In order to avoid such situations in the future, the water storage space associated with this city needs to be expanded to facilitate the response to such abnormal situations;

[0077] Specifically, in combination with the confirmed discharge time and the current time, the corresponding operator can directly lock the specific time of the corresponding discharge. For example, if the determined discharge time is 2, then the water storage discharge will start at the second time after the rainfall starts.

[0078] If the discharge time is -2, then the water storage will be discharged from the second moment before the rainfall. If the discharge time is a negative value and it belongs to the corresponding JG≥CD situation, it means that dynamic storage cannot be performed, and human intervention or pumping treatment and other operations are required. It also represents the shortage of water storage space, and related operations such as related adjustment and expansion are required.

[0079] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0080] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A method for urban rainwater storage space planning, characterized in that: The following steps are involved: Step 1: Based on several pre-calibrated different areas in the city, the trunk pipelines and branch pipelines in the corresponding areas are confirmed based on the pipeline layout network of the city. By analyzing the water flow between the trunk pipeline and the corresponding branch pipeline from the historical completion data, the storage energy parameters of the corresponding area are determined. The specific sub-steps are: S11. From the historical completion data, identify the total rainfall in the corresponding area in a single rainfall record and mark it as JY i-k , where i represents different regions, k represents different rainfall records, and then the total flow ZL of the branch pipelines in this region into the main pipeline in this rainfall record is identified i-k ; S12, using Xs i-k =JY i-k -ZL i-k Confirm the water storage value Xs generated in the corresponding area in the corresponding rainfall record i-k , and then extract several groups of rainfall records from the same area and determine the Xs of the corresponding rainfall records i-k , the number of groups is not less than 10, and the number of groups Xs belonging to the same area i-k Perform mean processing to determine the storage energy parameter TX belonging to this area. i For other areas, the same method is used to lock the corresponding storage energy parameters TX i ; Step 2: Based on the different storage energy parameters confirmed in different areas of the city and the water storage surplus of the corresponding urban water storage space, it is evaluated whether the rainfall associated with the current rainfall forecast can be stored in association, and based on the specific evaluation results, a storage signal or a storage signal is generated. The specific sub-steps are: S21, mark the relevant area covered by the current rainfall forecast as the area to be processed, and obtain the specific rainfall amount of the area to be processed during this rainfall process from the rainfall forecast. i , and then based on the storage energy parameter TX of the corresponding area to be processed i , determine the associated margin of the area to be processed: GX i =JL i -TX i , if GX i <0, then this GX i The correlation parameter is recorded as 0, and the processed groups of correlation margins GX i Perform summation to determine the total capacity ZR of several areas to be processed; S22, based on the water storage space associated with the corresponding city, identify the water storage surplus YL of the water storage space, if YL-ZR>Y2, where Y2 is a preset value, generate a storage signal for display; if YL-ZR≤Y2, generate a storage regulation signal; Step 3: Based on the generated regulation and storage signal, confirm the rainfall record associated with the current rainfall from the historical completion data, confirm the inflow characteristics generated by different regions on the trunk pipeline from the rainfall records, and confirm the water flow increment curve generated on the corresponding trunk pipeline during this rainfall process based on several groups of inflow characteristics. The specific sub-steps are as follows: S31, based on the specific rainfall JL of the corresponding area to be processed in the current rainfall forecast i , search for rainfall from historical completion data belonging to JL i ±Y3 rainfall records, where Y3 is a preset value, identify the water flow rate of the corresponding area to be processed that flows into the main pipeline from the rainfall records, record the initial rainfall time of the corresponding rainfall record as time 0, and confirm the different water flow rates SLL corresponding to different times after time 0 from the rainfall records q , where q represents different moments, and the different SLLs belonging to the same moment in multiple rainfall records are q Perform mean processing and lock the associated water flow mean JZZ q , and then based on the different JZZ corresponding to different moments q , generate a water flow correlation curve belonging to the area to be processed, and the horizontal coordinate axis of the water flow correlation curve is the time line, and the vertical coordinate axis is the water flow rate; S32, the other areas to be processed are processed in the same manner as step S31, and the water flow correlation curves belonging to the corresponding areas to be processed are determined, and the time line of each water flow correlation curve is specifically calibrated, and the initial time is 0; S33, summarizing the water flow correlation curves generated by the several areas to be processed to obtain the water flow increment curve associated with the main pipeline; Step 4: Based on the determined water flow increment curve, the standard discharge volume associated with the water storage space is confirmed synchronously. Based on the specific value of the standard discharge volume, a corresponding standard line is generated in the coordinate system where the water flow increment curve is located. By analyzing the trend characteristics of the standard line and the water flow increment curve, the standard discharge time is locked. The specific sub-steps are as follows: S41, determining the water storage surplus YL associated with the water storage space, starting from the initial moment of the water flow increment curve, identifying the total inflow generated at the subsequent associated moments, and stopping when the total inflow satisfies: total inflow ≥ YL-Y2, marking the previous moment when the satisfaction is met as the associated moment; S42, based on the standard discharge volume associated with the corresponding water storage space, the standard discharge volume is a preset value, confirming the associated parameter corresponding to the standard discharge volume on the vertical coordinate axis of the coordinate system where the water flow increment curve is located, and constructing a standard line perpendicular to the associated parameter; S43, from the association moment to the end moment of the water flow increment curve, part of the standard line and part of the water flow increment curve belonging to this period are checked: S431, based on the locations of the associated time and the end time, connecting the points corresponding to the standard line and the water flow increment curve at the corresponding time, thereby locking part of the standard line and part of the water flow increment curve; S432, reconfirm that the partial water flow increment curve is located in the area above the partial standard line and in the area below the partial standard line, and the upper area and the lower area are both located in the area covered by the partial standard line and the partial water flow increment curve, and identify the area M1 of the upper area and the area M2 of the lower area: If M1≤M2, it means that the discharge process can be performed, and the determined associated time is directly recorded as the discharge time and displayed; If M1>M2, the standard line is extended forward, and the perpendicular line between the extension point and the horizontal coordinate axis is constructed in real time. The perpendicular line between the corresponding point of the standard line at the corresponding associated moment and the horizontal coordinate axis is constructed synchronously. The area between the two perpendicular lines and the extension line of the standard line is recorded. This area is divided into the lower area until M1≤M2. The extension point after extension is locked, and the time corresponding to the extension point is recorded. The corresponding time is recorded as the discharge time and displayed.

2. The urban rainwater storage space planning method according to claim 1 is characterized in that: In step S11, the total flow ZL i-k Confirmation methods include: Determine the branch pipes belonging to the area, determine the rainfall time period T from a single rainfall record, lock a set of search cycles T±Y1, and identify the water flow rate of the corresponding branch pipes entering the main pipe within this search cycle. The water flow rate is monitored and confirmed by the flow sensor set at the confluence entrance, and then the monitored groups of water flow rates are aggregated to obtain the corresponding total flow rate ZL i-k , where Y1 is the preset value.

3. The urban rainwater storage space planning method according to claim 1 is characterized in that: In step S33, the summary processing process of the water flow correlation curve is: JZZ associated with the same time q The sum is calculated to obtain the total value associated with the corresponding moment, and then based on the different total values ​​corresponding to the corresponding moment, the associated water flow increment curve is obtained.

4. The urban rainwater storage space planning method according to claim 1 is characterized in that: Also includes: Step 5: If the confirmed discharge time is a negative value, then by identifying the time interval between the current time and the rainfall time, assess whether such negative value is a normal negative value or an abnormal negative value, and generate and display the associated processing signal.

5. The urban rainwater storage space planning method according to claim 1 is characterized in that: In step 5, the specific sub-steps for assessing whether such negative values ​​are normal negative values ​​or abnormal negative values ​​are: Lock the time interval JG from the current moment to the rainfall moment, process the discharge moment by absolute value and confirm its associated time length CD; If JG<CD, it means that the negative value is a normal negative value, and it will be displayed normally; If JG≥CD, it means that this negative value is an abnormal negative value, and a warning signal is generated and displayed.

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