CN116070965B - Efficiency evaluation method and device for drainage pipe network, electronic equipment and storage medium - Google Patents
Efficiency evaluation method and device for drainage pipe network, electronic equipment and storage medium Download PDFInfo
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Abstract
The application discloses a drainage pipe network efficiency evaluation method, a drainage pipe network efficiency evaluation device, electronic equipment and a storage medium, and relates to the technical field of municipal drainage efficiency evaluation. The method comprises the following steps: calculating a plurality of efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network; the efficiency coefficient comprises a foundation construction coefficient and an operation coefficient, wherein the foundation construction coefficient is used for representing the structural characteristics of the drainage pipe network, and the operation coefficient is used for representing the dynamic characteristics of the drainage pipe network during drainage; based on the multiple efficiency coefficients and the weight coefficient corresponding to each efficiency coefficient, calculating the comprehensive efficiency coefficient of the drainage pipe network; based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule, determining the efficiency evaluation grade of the drainage pipe network, and generating operation prompt information corresponding to the efficiency evaluation grade. Therefore, the method has the advantage of more comprehensive and visual evaluation of the drainage efficiency of the drainage pipe network.
Description
Technical Field
The application relates to the technical field of municipal drainage efficiency evaluation, in particular to a method and a device for evaluating efficiency of a drainage pipe network, electronic equipment and a storage medium.
Background
Drainage networks are one of the most important research subjects in current urban public drainage systems. Most drain pipes run by gravity, i.e. the water in the drain pipe is gravity fed by the inclined slope of the drain pipe in the absence of pressure. In the process of planning design and operation efficiency evaluation of urban drainage systems, a standard, scientific and accurate evaluation method system is not formed at present aiming at comprehensive efficiency evaluation of drainage pipelines. The existing evaluation mode generally carries out efficiency calculation only according to single drainage pipe network monitoring data or drainage pipe network structure data, but the evaluation mode is difficult to comprehensively and intuitively evaluate the overall operation efficiency or the overall operation efficiency of the urban drainage pipe network during drainage, and corresponding reconstruction measures cannot be adopted according to the actual operation condition of the drainage pipe network.
Disclosure of Invention
The purpose of the application is to provide a method, a device, electronic equipment and a storage medium for evaluating the efficiency of a drainage pipe network, which are used for comprehensively evaluating the operation efficiency of the drainage pipe network in drainage by combining the structural characteristics of the drainage pipe network and the dynamic characteristics of the drainage pipe network in drainage, and the evaluation result is more comprehensive, scientific and visual.
Embodiments of the present application are implemented as follows:
an embodiment of the present application provides a method for evaluating efficiency of a drainage pipe network, where the method includes: calculating a plurality of efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network; the efficiency coefficient comprises a foundation construction coefficient and an operation coefficient, wherein the foundation construction coefficient is used for representing the structural characteristics of the drainage pipe network, and the operation coefficient is used for representing the dynamic characteristics of the drainage pipe network during drainage; based on the multiple efficiency coefficients and the weight coefficient corresponding to each efficiency coefficient, calculating the comprehensive efficiency coefficient of the drainage pipe network; based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule, determining the efficiency evaluation grade of the drainage pipe network, and generating operation prompt information corresponding to the efficiency evaluation grade.
In one embodiment, before calculating the integrated performance factor of the drainage network based on the plurality of performance factors and the weight factor corresponding to each performance factor, the method further comprises: sorting based on importance index values corresponding to the efficiency coefficients respectively, and generating a sorting result; the importance index value is used for representing structural characteristics or dynamic characteristics corresponding to the efficiency coefficient and influencing the running efficiency of the drainage pipe network; and calculating the weight coefficient corresponding to each efficiency coefficient based on the analytic hierarchy process and the sequencing result.
In one embodiment, calculating a plurality of efficiency coefficients of the drainage network based on infrastructure data and operational data of the drainage network includes: calculating the foundation construction coefficient of the drainage pipe network based on a plurality of pre-stored foundation construction data; the infrastructure coefficient comprises at least one of a pipe network average gradient coefficient, a pipe network water receiving capacity coefficient and a communication coefficient; the average gradient of the pipe network is used for representing the overall inclination degree of the drainage pipe network; the pipe network water receiving capacity is used for representing the capacity of the drainage pipe network for receiving the total input water under the known precipitation condition; the communication coefficient is used for representing the connection condition of a plurality of pipe sections in the drainage pipe network.
In one embodiment, the infrastructure data includes a total volume of the drainage pipe network, and calculating the infrastructure coefficient of the drainage pipe network based on the plurality of pre-stored infrastructure data includes: calculating the input total water volume of the drainage pipe network based on the known precipitation condition; and calculating the water receiving capacity coefficient of the pipe network based on the total input water quantity and the total volume of the drainage pipe network.
In one embodiment, calculating a plurality of efficiency coefficients of the drainage network based on infrastructure data and operational data of the drainage network includes: calculating an operation coefficient of the drainage pipe network based on the operation data and a plurality of pre-stored infrastructure data; the operation coefficient comprises at least one of a fullness coefficient, a flow rate coefficient, a pipe network loss coefficient, a clogging coefficient and an overflow coefficient; the fullness coefficient is used for representing the internal water depth degree of the drainage pipe network during drainage; the flow velocity coefficient is used for representing the internal flowing water velocity of the drainage pipe network during drainage; the pipe network wear coefficient is used for representing the damage degree of the drainage pipe network during drainage; the clogging coefficient is used for representing the silt accumulation degree of the drainage pipe network during drainage; the overflow coefficient is used for representing the overflow degree of the drainage pipe network during drainage.
In one embodiment, the infrastructure data includes the length, age, design age, and total length of the drain pipe network; the operation data comprise the water inflow of each inspection well in the same time period; calculating an operation coefficient of the drainage pipe network based on the operation data and a plurality of pre-stored infrastructure data, comprising: determining the damage quantity of each drainage pipe section based on the water inflow difference value of each group of adjacent inspection wells in the same time period; calculating the loss coefficient of each drain pipe section based on the damage number, the service life and the design life of each drain pipe section; and calculating the loss coefficient of the pipe network based on the loss coefficient, the length and the total length of the pipe network of each drainage pipe section.
In one embodiment, determining the performance evaluation level of the drainage pipe network based on the comprehensive performance coefficient and a preset performance evaluation rule, and generating the operation prompt information corresponding to the performance evaluation level includes: judging whether the comprehensive efficiency coefficient exceeds a first threshold value; if the comprehensive efficiency coefficient does not exceed the first threshold, determining that the efficiency evaluation grade is three-level, and generating prompt information of poor overall operation efficiency of the drainage pipe network; if the comprehensive efficiency coefficient exceeds the first threshold, judging whether the comprehensive efficiency coefficient exceeds the second threshold; if the comprehensive efficiency coefficient exceeds a second threshold value, determining the efficiency evaluation level as a first level, and generating prompt information of good overall operation efficiency of the drainage pipe network; if the comprehensive efficiency coefficient exceeds the first threshold value and does not exceed the second threshold value, determining the efficiency evaluation level as a second level, and generating a prompt message of general overall operation efficiency of the drainage pipe network.
A second aspect of the embodiments of the present application provides a device for evaluating efficiency of a drainage pipe network, where the device includes: the first calculation module is used for calculating a plurality of efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network; the second calculation module is used for calculating the comprehensive efficiency coefficient of the drainage pipe network based on the plurality of efficiency coefficients and the weight coefficient corresponding to each efficiency coefficient; the determining module is used for determining the efficiency evaluation grade of the drainage pipe network based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule.
A third aspect of the embodiments of the present application provides an electronic device, including: a processor and a memory for storing processor-executable instructions; the processor is configured to execute the method for evaluating the performance of the drainage network according to the first aspect of the embodiments and any of the embodiments.
A fourth aspect of the present embodiments provides a computer-readable storage medium storing a computer program. The computer program is executable by the processor to complete the method for evaluating the performance of the drainage network according to the first aspect of the embodiments and any of the embodiments.
Compared with the prior art, the beneficial effects of this application are:
the method and the device can solve the problem that in the prior art, the operation efficiency of the drainage pipe network is not scientific and visual enough based on single monitoring parameter evaluation. According to the drainage pipe network evaluation method, the drainage effect structural characteristics and the internal changeable dynamic characteristics of each pipe section of the drainage pipe network are combined to evaluate the overall efficiency of the drainage pipe network in drainage, so that the accuracy, comprehensiveness, scientificity and intuitiveness of evaluating the overall operation performance of the drainage pipe network are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating a method for evaluating performance of a drainage network according to an embodiment of the present disclosure;
FIG. 3 is a flow chart illustrating a method for evaluating performance of a drainage network according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a calculation flow of pipe network water receiving capacity coefficient according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an apparatus for evaluating performance of a drainage network according to an embodiment of the present disclosure.
Reference numerals: 1-an electronic device; 10-memory; 11-buses; 12-a processor; 200-efficiency evaluation device of the drainage pipe network; 210-a first computing module; 220-a second calculation module; 230-determination module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 1 according to an embodiment of the present application. As shown in fig. 1, the electronic device 1 comprises at least one processor 12 and a memory 10, one processor 12 being exemplified in fig. 1. The processor 12 and the memory 10 are connected through the bus 11, and the memory 10 stores instructions executable by the at least one processor 12, the instructions being executed by the at least one processor 12 to cause the at least one processor 12 to perform the performance evaluation method of the drainage network in the embodiment described below.
Referring to fig. 2, fig. 2 is a flow chart illustrating a method for evaluating performance of a drainage pipe network according to an embodiment of the disclosure. As shown in fig. 2, an embodiment of the present application provides a method for evaluating efficiency of a drainage pipe network, including the following steps:
s110: based on the infrastructure data and the operation data of the drainage pipe network, a plurality of efficiency coefficients of the drainage pipe network are calculated.
The efficiency coefficient comprises a foundation construction coefficient and an operation coefficient, wherein the foundation construction coefficient is used for representing the structural characteristics of the drainage pipe network, such as the integral gradient of the drainage pipe network, the communication condition of each pipe section in the drainage pipe network and the like; the operation coefficient is used for representing dynamic characteristics of the drainage pipe network during drainage, such as internal flow velocity of the drainage pipe network during drainage, internal sludge accumulation degree of the drainage pipe network during drainage and the like;
in this step, the processor calculates a plurality of efficiency coefficients that can affect the drainage operation of the drainage network based on the structural characteristics of the drainage network when it is laid or modified, and the dynamic change characteristics that are exhibited by the drainage network and the actual drainage. In the subsequent step, the comprehensive efficiency coefficient of the drainage pipe network is calculated based on the calculation results of the efficiency coefficients and the influence degree of the characteristics corresponding to the efficiency coefficients on the drainage operation of the drainage pipe network.
S120: based on the energy efficiency coefficients and the weight coefficient corresponding to each energy efficiency coefficient, the comprehensive energy efficiency coefficient of the drainage pipe network is calculated.
The weight coefficient refers to a weight value corresponding to each characteristic affecting the drainage efficiency of the drainage pipe network. In this step, the processor calculates the comprehensive efficiency coefficient of the drainage pipe network during drainage based on the calculated multi-aspect efficiency coefficient and the weight coefficient corresponding to the efficiency coefficient. The comprehensive efficiency coefficient refers to a numerical value for evaluating the overall drainage efficiency of the drainage pipe network.
S130: based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule, determining the efficiency evaluation grade of the drainage pipe network, and generating operation prompt information corresponding to the efficiency evaluation grade.
In the step, the processor judges which efficiency evaluation level the calculated comprehensive efficiency coefficient corresponds to based on a preset efficiency evaluation rule, further determines the overall operation performance of the drainage pipe network during drainage, and generates operation prompt information or investigation and rescue advice related to the overall operation performance, so that a worker can timely inspect the drainage pipe network or the drainage pipe section with problems based on the operation prompt information, and correspondingly replace and repair the problem pipe section, or perform dredging work on the pipe section.
The efficiency evaluation method of the drainage pipe network provided by the application can evaluate the drainage operation efficiency of the drainage pipe network in the current area after the preset period based on the precipitation conditions which occur at one time and the historical data which are extracted and monitored for the dry pipe section or all pipe sections in the drainage pipe network under the precipitation conditions; according to the efficiency evaluation method for the drainage pipe network, the real-time drainage operation efficiency of the drainage pipe network in the current area can be evaluated according to accumulated precipitation conditions (such as current precipitation time, precipitation level and the like), extracted infrastructure data and pipe network operation data monitored in real time under the current precipitation environment, and the operation efficiency or the operation condition of the drainage pipe network can be updated in time. And when a serious problem occurs in the operation efficiency of the drainage pipe network, the system can give an alarm to monitoring personnel in time and provide specific information of the problem pipe section in the drainage pipe network, so that the personnel can repair or report the information in time.
Referring to fig. 3, fig. 3 is a flow chart illustrating a method for evaluating performance of a drainage pipe network according to an embodiment of the disclosure. As shown in fig. 3, the efficiency evaluation method of the drainage pipe network includes the following steps:
s210: based on the infrastructure data and the operation data of the drainage pipe network, a plurality of efficiency coefficients of the drainage pipe network are calculated.
The processor firstly acquires the infrastructure data of the drainage pipe network and performs integral pretreatment on the infrastructure data. The infrastructure data, also referred to as pipe network attribute data, includes various types of data related to the drainage pipe network structure, such as pipe gradient, pipe diameter, number of pipes, number of inspection wells, depth of inspection well, diameter of inspection well, etc. of each pipe section in the drainage pipe network. Meanwhile, the processor also acquires evaluation parameters of the drainage pipe network under ideal conditions, such as optimal fullness, optimal flow rate and the like. The processor also acquires actual operation data monitored in the drainage pipe network under a preset precipitation scene or a current precipitation scene, and a plurality of sets of monitoring equipment are distributed in the drainage pipe network to acquire real-time data, wherein the real-time data comprise pipeline flow rate, liquid level, sedimentation depth, overflow data, inspection well water inflow and the like.
Therefore, the efficiency coefficient obtained based on the infrastructure data or the operation data comprises the infrastructure coefficient and the operation coefficient, wherein the infrastructure coefficient is used for representing the structural characteristics of the drainage pipe network, and the operation coefficient is used for representing the dynamic characteristics of the drainage pipe network during drainage.
The processor calculates the foundation construction coefficient of the drainage pipe network based on a plurality of pre-stored foundation construction data; the infrastructure coefficient comprises at least one of a pipe network average gradient coefficient, a pipe network water receiving capacity coefficient and a communication coefficient. The concrete calculation mode is as follows:
average gradient coefficient of pipe network (K) S ) The calculation formula is as follows (1) for representing the overall inclination degree of the drainage pipe network:
wherein l i The length of the ith pipe section is m; l (L) T The unit is m, which is the total length of the pipe network; k (K) s-i For the gradient coefficient of the ith pipe section, the calculation formula is as follows (2):
wherein S is i Is the gradient of the ith pipe section; s is S opt-i For the minimum design theoretical gradient of the ith pipe section, the relation table of the pipe section pipe diameter and the minimum design theoretical gradient is as follows (1) under the influence of pipe diameter:
referring to fig. 4, fig. 4 is a schematic diagram of a calculation flow of a pipe network water-receiving capacity coefficient according to an embodiment of the present application. As shown in fig. 4, the processor calculates the total input water volume to the drain network based on known precipitation conditions; and then calculating the water receiving capacity coefficient of the pipe network based on the total input water quantity and the total volume of the drainage pipe network.
Pipe network water-holding power coefficient (K) C ) The water-saving type water-saving device is used for representing the capacity of a water-draining pipe network for the total input water under the known precipitation condition, and the calculation formula is as follows (3):
r is the total input water quantity entering a drainage pipe network under the known precipitation condition, and the calculation formula is shown as the following formula (4), wherein the unit is m 3 ；C T Is the total volume of the drainage pipe network, and has the unit of m 3 . The calculation formula is shown in the following formula (5).
Wherein q is the known precipitation intensity, and the unit is L/(s.hm) 2 ) The known precipitation intensity is calculated by precipitation intensity formulas of different areas (for example province and city); psi is a runoff coefficient; a is water collecting area, and the unit is hm 2 The method comprises the steps of carrying out a first treatment on the surface of the t is precipitation time, and the unit is s.
Wherein C is l-i Is the volume of the ith pipe section, and has the unit of m 3 ；C node-j The unit of the volume of the j-th inspection well node is m 3 。
In one embodiment, the processor may calculate the pipe network water receiving capacity coefficient of the drainage pipe network under the specified precipitation condition based on the pre-stored historical precipitation data, such as parameters of precipitation intensity, precipitation time, and the like. In another embodiment, the processor may further calculate the pipe network water receiving capacity coefficient of the pipe network under the current precipitation condition based on the real-time precipitation data, for example, the current precipitation time, the precipitation intensity, and the like of the current environment in the case where the current environment is precipitating.
Coefficient of communication (K) L ) The water drainage path condition of a plurality of pipe sections of the water drainage pipe network is represented, and the calculation formula is shown as the following formula (6):
wherein N is T The number of pipe network pipe sections is one; n is the number of pipe network connection points, and the units are one;
the pipe network connection point number is n, and the unit is the number of pipe sections which can be connected at most; alpha is a first communication coefficient and is determined by parameters such as pipe network paving distance and the like.
The processor calculates each foundation construction coefficient based on the foundation construction data, and calculates the operation coefficient of the drainage pipe network based on the operation data and a plurality of pre-stored foundation construction data; the operation coefficient comprises at least one of a fullness coefficient, a flow rate coefficient, a pipe network loss coefficient, a clogging coefficient and an overflow coefficient.
Coefficient of fullness (K) F ) The internal water depth degree used for representing the drainage pipe network during drainage is calculated according to the following formula (7):
wherein l i The length of the ith pipe section is m; l (L) T The unit is m, which is the total length of the pipe network; k (K) F-i For the i-th pipe section fullness coefficient, K F-i The calculation formula of (2) is as follows (8):
wherein f i The degree of fullness of the ith pipe section is the ratio of the water depth h in the pipeline to the diameter D of the pipeline; f (f) 0-i Is the optimal fullness of the ith pipe section in the theoretical state and is influenced by pipe diameter, f 0-i The relationship between pipe diameter and optimal fullness is shown in the table (2) below.
Flow coefficient (K) V ) The internal flow water velocity used for representing the drainage pipe network during drainage is calculated according to the following formula (9):
wherein l i The length of the ith pipe section is m; l (L) T The unit is m, which is the total length of the pipe network; v i The flow rate in the ith pipe section is m/s; v 0 Is the flow rate of the normal circulation of the pipe network under ideal state, which is also called the pipe network design maximum flow rate, and the unit is m/s, v 0 Typically take a value of 0.75m/s.
The infrastructure data also includes the length, age, design age, and total length of the drain pipe network. Pipe network loss factor (K) W ) The damage degree of the drainage pipe network during drainage is represented, and the calculation formula is shown as the following formula (10):
wherein l i The length of the ith pipe section is m; l (L) T The unit is m, which is the total length of the pipe network; k (K) W-i For the i-th pipe section loss factor, K W-i The calculation formula of (2) is as follows (11):
wherein Y is O-i The design year of the ith pipe section is given in years; y is Y i The practical service life of the ith pipe section is the year; w (w) i The number of damage and breakage of the ith pipe section is expressed as one; beta is an annual coefficient, and the value is more than or equal to 1.
In an embodiment, the processor may obtain the water inflow of each inspection well in the drainage pipe network in the same period, and determine the number of damages of each drainage pipe section based on the water inflow difference between each group of adjacent inspection wells in the same period; the processor then calculates the loss factor for each drain pipe section according to equation (11) above based on the number of breaks, age, and design age for each drain pipe section. Finally, the processor calculates the pipe network loss factor based on the above (10) based on the loss factor, length, and pipe network total length of each drain pipe section.
In one embodiment, each set of adjacent wells includes an upstream well and a downstream well, with a drain pipe section disposed therebetween. When the water inflow of the upstream inspection well corresponding to a certain group of inspection wells differs from the water inflow of the downstream inspection well by more than 10%, the pipe section between the inspection wells is considered to have 1 damage point; if the water inflow difference is more than 20%, namely the running water loss in the pipe section is more than 20%, the pipe section between the inspection wells is considered to have 2 breakage points; if the water inflow difference is more than 30%, the pipe section between the inspection wells is determined to have 3 damage points, and the inspection wells are sequentially classified.
Clogging factor (K) M ) The method is used for representing the sludge accumulation degree of the drainage pipe network during drainage, and the calculation formula is as follows (12):
wherein l i The length of the ith pipe section is m; l (L) T The unit is m, which is the total length of the pipe network; m is m i The thickness of the sludge in the ith pipe section is in mm; d, d i The diameter of the ith tube segment is in mm.
Overflow coefficient (K) O ) The calculation formula is as follows (13) for representing the overflow degree of the drainage pipe network during drainage:
wherein N is O The unit is the number of pipe sections overflowed; n (N) T The unit is the total number of pipe sections in the drainage pipe network.
S220: based on the energy efficiency coefficients and the weight coefficient corresponding to each energy efficiency coefficient, the comprehensive energy efficiency coefficient of the drainage pipe network is calculated.
The weight coefficient refers to a weight value corresponding to each characteristic affecting the drainage efficiency of the drainage pipe network. The processor calculates the comprehensive efficiency coefficient of the drainage pipe network during drainage based on the calculated multi-aspect efficiency coefficient and the weight coefficient corresponding to the efficiency coefficient. The comprehensive efficiency coefficient refers to a numerical value for evaluating the overall drainage efficiency of the drainage pipe network.
In step S220: based on the plurality of efficiency coefficients and the weight coefficient corresponding to each efficiency coefficient, the efficiency evaluation method of the drainage pipe network further comprises S201-S202 before calculating the comprehensive efficiency coefficient of the drainage pipe network.
S201: and sorting based on the importance index values corresponding to the efficiency coefficients respectively, and generating a sorting result.
The importance index value is used for representing structural characteristics or dynamic characteristics corresponding to the efficiency coefficient and influencing the running efficiency of the drainage pipe network. The processor ranks the influence degree values of the preset characteristics on the drainage efficiency of the drainage pipe network. The designer can preset each efficiency coefficient (average gradient K of the pipe network S Pipe network water receiving capacity K C Coefficient of communication K L Coefficient of fullness K F Coefficient of flow K V Degree of pipe network loss K W Coefficient of clogging K M And overflow coefficient K O ) The importance index values corresponding to the respective importance index values (the importance index values of the respective performance coefficients may be preliminarily defined by using values 1 to 10 according to the actual drainage needs and experience of the current area), and then the processor searches the importance index values corresponding to the performance coefficients and sorts the importance index values, for example { L, M, C, V, O, W, S, F } = {10,10,8,7,6,6,5,4}.
S202: and calculating the weight coefficient corresponding to each efficiency coefficient based on the analytic hierarchy process and the sequencing result.
In this step, the processor determines a weight coefficient vector (WCV, weight Coefficient Vectors) corresponding to the plurality of performance coefficients based on the ranking result and an Analytic Hierarchy Process (AHP).
The PNEI refers to a pipe network efficiency evaluation index (Pipe Network Evaluation Index), and includes a pipe network average gradient index (Slope, S), a pipe network water receiving Capacity index (Capacity, C), a connectivity index (Link, L), a Fullness index (Fullness, F), a flow rate index (speed, V), a loss index (weather, W), a clogging condition index (Mud, M) and an Overflow index (Overflow, O). Each evaluation index corresponds to one efficiency coefficient and one importance index value, and the processor calculates a weight coefficient vector composed of weight coefficients based on the importance index values corresponding to all the evaluation indexes.
For example, the processor sorts the results based on importance index values of the respective evaluation indexes: { L, M, C, V, O, W, S, F } = {10,10,8,7,6,6,5,4}, the corresponding relational contrast matrix is calculated according to the analytic hierarchy process (nine-scale layering) as follows:
based on the relation contrast matrix, the processor normalizes the matrix array vector to obtain an intermediate matrix, and retains 4-bit effective numbers:
finally, the processor calculates weight coefficient vectors corresponding to the plurality of efficiency coefficients based on the matrix:
WCV={L,M,C,V,O,W,S,F}；
WCV={0.2232,0.2232,0.1675,0.1184,0.0910,0.0851,0.0551,0.0365} T 。
the processor is based on the respective efficiency coefficients (k= { K) of the drainage network S ,K C ,K L ,K F ,K V ,K W ,K M ,K O And the weight coefficient vector WCV = { L, M, C, V, O, W, S, F }, and calculating to obtain the comprehensive efficiency coefficient of the drainage pipe network. Wherein, the closer the single efficiency coefficient is to 1, the larger the comprehensive efficiency coefficient of the drainage pipe network is, and the better the operation effect of the drainage pipe network is.
The processor calculates the comprehensive efficiency coefficient (Network Synthesis Coefficient, NSC) of the drainage pipe network based on each efficiency coefficient and the weight coefficient vector corresponding to the efficiency coefficient, and the calculation formula is as follows (14):
wherein K is the efficiency coefficient; WCV is a weight coefficient vector; NSC is the overall efficiency coefficient of a drainage network.
Taking the weight coefficient vector calculated in the above embodiment and each known efficiency coefficient as an example, the processor calculates the value of the comprehensive efficiency coefficient NSC of the drainage pipe network based on the comprehensive efficiency coefficient calculation formula (14) of the drainage pipe network.
Wherein, each efficiency coefficient corresponds to:
{K S ,K C ,K L ,K F ,K V ,K W ,K M ,K O }={0.8546,0.7620,0.6791,0.7538,0.7567,0.66,0.9587,0.9983}；
the weight coefficient vector is:
WCV={0.2232,0.2232,0.1675,0.1184,0.0910,0.0851,0.0551,0.0365} T 。
the overall efficiency coefficient is calculated as:
NSC=0.2232×0.6791+0.2232×0.9587+0.1675×0.7620+0.1184×0.7567+0.0910×0.9983+0.0851×0.66+0.0551×0.8546+0.0365×0.7538≈0.8044。
s230: based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule, determining the efficiency evaluation grade of the drainage pipe network, and generating operation prompt information corresponding to the efficiency evaluation grade.
In this step, the processor determines whether the integrated efficiency coefficient exceeds a first threshold; if the comprehensive efficiency coefficient does not exceed the first threshold, determining that the efficiency evaluation grade is three-level, and generating prompt information of poor overall operation efficiency of the drainage pipe network; if the comprehensive efficiency coefficient exceeds the first threshold, judging whether the comprehensive efficiency coefficient exceeds the second threshold; if the comprehensive efficiency coefficient exceeds a second threshold value, determining the efficiency evaluation level as a first level, and generating prompt information of good overall operation efficiency of the drainage pipe network; if the comprehensive efficiency coefficient exceeds the first threshold and does not exceed the second threshold, determining the efficiency evaluation level as a second level, and generating a general prompt message of the overall operation efficiency of the drainage pipe network, wherein the specific details are shown in the table (3).
If 0.75< NSC is less than or equal to 1, the efficiency evaluation grade is a level, which indicates that the running condition of the drainage pipe network is good, the whole drainage pipe network has fewer problems, the pipe network has higher connectivity and less loss, and the drainage requirement of the current drainage area under the known precipitation condition is met.
If NSC is 0.45< and is less than or equal to 0.75, the efficiency evaluation grade is two-level, which indicates that the running condition of the pipe network is general and has a part of problems, and staff needs to strengthen the work of checking, repairing, dredging and the like of the drainage pipe network so as to improve the running efficiency of the drainage pipe network.
If 0< NSC is less than or equal to 0.45, the efficiency evaluation grade is three-level, which indicates that the running condition of the pipe network is poor, a large number of pipe sections in the pipe network can be damaged and deposited, or the pipe network has the problems of unreasonable design and laying, and the actual water receiving and draining capacity of the pipe network is not consistent with the water draining capacity of the current area under the known rainfall condition and required to be met.
In combination with the integrated efficiency coefficients calculated in the above examples, nsc=0.8044, which satisfies 0.75< nsc.ltoreq.1. The efficiency evaluation grade of the current drainage pipe network is one level, and the processor generates relevant evaluation results or prompt information such as good pipe network running condition, higher pipe network connectivity, less loss, less problems in the whole drainage pipe network, and meeting the drainage requirements of the current area under the specified rainfall condition. The processor can also generate corresponding problem prompt information according to calculation, comparison and analysis of the efficiency coefficients so as to prompt staff that overflow or damage exists on part of pipe sections, and timely operation and maintenance processing is carried out on related pipelines so as to further improve the operation efficiency of the pipe network.
According to the drainage pipe network evaluation method, the drainage effect structural characteristics and the internal changeable dynamic characteristics of each pipe section of the drainage pipe network are combined to evaluate the overall efficiency of the drainage pipe network in drainage, so that the accuracy, comprehensiveness, scientificity and intuitiveness of evaluating the overall operation performance of the drainage pipe network are improved.
Based on basic properties and running states of the drainage pipe network, the multi-dimensional pipe network efficiency analysis index (expressed by a plurality of efficiency coefficients) is constructed, the comprehensive efficiency coefficient is calculated by the way that the multi-dimensional index participates in weighted calculation, and the efficiency evaluation grade is scientifically, comprehensively and accurately determined based on the efficiency evaluation rule, so that a complete efficiency evaluation system of the drainage pipe network is formed. The method and the system can intuitively and accurately evaluate the operation effect of the pipeline network, and provide reliable data technical support for facility operation and maintenance and transformation of the urban drainage pipeline network.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an apparatus for evaluating performance of a drainage pipe network according to an embodiment of the present disclosure. As shown in fig. 5, an embodiment of the present application provides a device 200 for evaluating efficiency of a drainage pipe network, the device includes: the first calculating module 210 is configured to calculate a plurality of efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network; the second calculating module 220 is configured to calculate a comprehensive efficiency coefficient of the drainage pipe network based on the plurality of efficiency coefficients and the weight coefficient corresponding to each efficiency coefficient; the determining module 230 is configured to determine a performance evaluation level of the drainage pipe network based on the comprehensive performance coefficient and a preset performance evaluation rule.
The implementation process of the functions and actions of each module in the device is specifically shown in the implementation process of corresponding steps in the efficiency evaluation method of the drainage pipe network, and is not repeated here.
In the several embodiments provided in the present application, the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
Embodiments of the present application provide a computer-readable storage medium storing a computer program. The computer program is executable by the processor 12 to perform the method of evaluating the performance of the drain network.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (7)
1. A method for evaluating the efficiency of a drainage network, the method comprising:
calculating a plurality of efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network; the efficiency coefficient comprises an infrastructure coefficient and an operation coefficient, wherein the infrastructure coefficient is used for representing structural characteristics of the drainage pipe network, and the operation coefficient is used for representing dynamic characteristics of the drainage pipe network during drainage;
calculating the comprehensive efficiency coefficient of the drainage pipe network based on a plurality of efficiency coefficients and weight coefficients corresponding to each efficiency coefficient;
determining the efficiency evaluation grade of the drainage pipe network based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule, and generating operation prompt information corresponding to the efficiency evaluation grade;
the calculating the efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network comprises the following steps:
calculating the infrastructure coefficient of the drainage pipe network based on a plurality of pre-stored infrastructure data; the foundation construction coefficient comprises at least one of a pipe network average gradient coefficient, a pipe network water receiving capacity coefficient and a communication coefficient; the pipe network average gradient is used for representing the overall inclination degree of the drainage pipe network; the pipe network water receiving capacity is used for representing the capacity of the drainage pipe network for the total input water under the known precipitation condition; the communication coefficient is used for representing the connection condition of a plurality of pipe sections in the drainage pipe network;
calculating the operation coefficient of the drainage pipe network based on the operation data and a plurality of pre-stored infrastructure data; the operation coefficient comprises at least one of a fullness coefficient, a flow rate coefficient, a pipe network loss coefficient, a clogging coefficient and an overflow coefficient; the fullness coefficient is used for representing the internal water depth degree of the drainage pipe network during drainage; the flow velocity coefficient is used for representing the internal flowing water velocity of the drainage pipe network during drainage; the pipe network wear coefficient is used for representing the damage degree of the drainage pipe network during drainage; the clogging coefficient is used for representing the silt accumulation degree of the drainage pipe network during drainage; the overflow rate coefficient is used for representing the overflow degree of the drainage pipe network during drainage;
the step of determining the performance evaluation grade of the drainage pipe network based on the comprehensive performance coefficient and a preset performance evaluation rule and generating operation prompt information corresponding to the performance evaluation grade comprises the following steps:
judging whether the comprehensive efficiency coefficient exceeds a first threshold value;
if the comprehensive efficiency coefficient does not exceed the first threshold, determining that the efficiency evaluation level is three-level, and generating prompt information of poor overall operation efficiency of the drainage pipe network;
if the comprehensive efficiency coefficient exceeds the first threshold, judging whether the comprehensive efficiency coefficient exceeds a second threshold;
if the comprehensive efficiency coefficient exceeds the second threshold, determining the efficiency evaluation level as a first level, and generating prompt information of good overall operation efficiency of the drainage pipe network;
if the comprehensive efficiency coefficient exceeds the first threshold value and does not exceed the second threshold value, determining that the efficiency evaluation level is two-level, and generating prompt information of general overall operation efficiency of the drainage pipe network.
2. The method for evaluating the efficiency of a drainage network according to claim 1, wherein before calculating the comprehensive efficiency coefficient of the drainage network based on the weight coefficients corresponding to the efficiency coefficients, the method further comprises:
sorting based on importance index values corresponding to the efficiency coefficients respectively, and generating a sorting result; the importance index value is used for representing the structural characteristics or the dynamic characteristics corresponding to the efficiency coefficient, and the influence degree of the structural characteristics or the dynamic characteristics on the operation efficiency of the drainage pipe network is represented;
and calculating the weight coefficient corresponding to each efficiency coefficient based on the analytic hierarchy process and the sequencing result.
3. The method of evaluating efficiency of a drain pipe network according to claim 1, wherein the infrastructure data includes a total volume of the drain pipe network, and the calculating an infrastructure coefficient of the drain pipe network based on a plurality of the infrastructure data stored in advance includes:
calculating the input total water volume of the drainage pipe network based on the known precipitation conditions;
and calculating the pipe network water receiving capacity coefficient based on the total input water quantity and the total volume of the drainage pipe network.
4. The method of evaluating the efficiency of a drain pipe network according to claim 1, wherein the infrastructure data includes a length, a service life, a design life of each drain pipe section, and a pipe network total length of the drain pipe network; the operation data comprise water inflow of each inspection well in the same time period; the calculating the operation coefficient of the drainage pipe network based on the operation data and a plurality of pre-stored infrastructure data comprises the following steps:
determining the damage quantity of each drainage pipe section based on the water inflow difference value of each group of adjacent inspection wells in the same time period;
calculating a loss factor for each of the drain pipe sections based on the number of breaks, the age, and the design age for each of the drain pipe sections;
and calculating the pipe network loss factor based on the loss factor, the length and the pipe network total length of each drainage pipe section.
5. A device for evaluating the effectiveness of a drainage network using the method of any one of claims 1 to 4, said device comprising:
the first calculation module is used for calculating a plurality of efficiency coefficients of the drainage pipe network based on the infrastructure data and the operation data of the drainage pipe network;
the second calculation module is used for calculating the comprehensive efficiency coefficient of the drainage pipe network based on a plurality of efficiency coefficients and weight coefficients corresponding to each efficiency coefficient;
and the determining module is used for determining the efficiency evaluation grade of the drainage pipe network based on the comprehensive efficiency coefficient and a preset efficiency evaluation rule.
6. An electronic device, the electronic device comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of evaluating the performance of a drainage network of any of claims 1-4.
7. A computer readable storage medium storing a computer program executable by a processor to perform the method of evaluating the performance of a drain pipe network according to any one of claims 1-4.
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