CN116561942A

CN116561942A - Method and device for correcting topology data of urban drainage system

Info

Publication number: CN116561942A
Application number: CN202310468679.6A
Authority: CN
Inventors: 孙岸炜; 陈瑞弘; 邱子裕; 陈江海; 刘正彪; 郭旻睿; 孙玉天
Original assignee: Three Gorges Smart Water Technology Co ltd
Current assignee: Three Gorges Smart Water Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-08-08
Anticipated expiration: 2043-04-27
Also published as: CN116561942B

Abstract

The embodiment of the disclosure provides a method and a device for correcting topology data of an urban drainage system, which are applied to the technical field of urban drainage systems. The method comprises the following steps: obtaining topology data of the urban drainage system obtained by general investigation of the urban drainage system, inspection well liquid level data and pipeline liquid level data measured by monitoring equipment, wherein the topology data of the urban drainage system comprises: inspection well base data, pipeline base data; constructing a drainage pipe network hydraulics model according to the topology data of the urban drainage system; solving and calculating a drainage pipe network hydraulics model to obtain inspection well liquid level data and pipeline liquid level data; and correcting the topology data of the urban drainage system according to the calculated inspection well liquid level data and the drainage pipe network liquid level data, the measured inspection well liquid level data and the measured pipeline liquid level data. In this way, the efficiency of correction of the topology data of the urban drainage system can be improved.

Description

Method and device for correcting topology data of urban drainage system

Technical Field

The disclosure relates to the technical field of urban drainage systems, in particular to a method and a device for correcting topology data of an urban drainage system.

Background

The urban drainage system plays an important role in guaranteeing urban safety operation, and because of the huge number of underground pipe networks and complex actual conditions, the general investigation of the pipe networks is a primary method for knowing topology data of the urban drainage system.

Under the condition that the whole running state of the drainage system can only be calculated through a limited number of monitoring equipment, the pipe network census is a process of traversing the whole urban drainage system, and the census urban drainage system topology data have more defect data and need to be corrected due to manual or other reasons, but the problem of poor efficiency generally exists in the conventional correction scheme, so that how to improve the correction efficiency of the urban drainage system topology data becomes the technical problem to be solved urgently at present.

Disclosure of Invention

The embodiment of the disclosure provides a correction method and device for topology data of an urban drainage system.

In a first aspect, embodiments of the present disclosure provide a method for modifying topology data of an urban drainage system, the method comprising:

obtaining topology data of the urban drainage system obtained by general investigation of the urban drainage system, inspection well liquid level data and pipeline liquid level data measured by monitoring equipment, wherein the topology data of the urban drainage system comprises: inspection well base data, pipeline base data;

Constructing a drainage pipe network hydraulics model according to the topology data of the urban drainage system;

solving and calculating a drainage pipe network hydraulics model to obtain inspection well liquid level data and pipeline liquid level data;

and correcting the topology data of the urban drainage system according to the calculated inspection well liquid level data and the drainage pipe network liquid level data, the measured inspection well liquid level data and the measured pipeline liquid level data.

In some implementations of the first aspect, constructing a drainage network hydraulics model from urban drainage system topology data includes:

according to the topology data of the urban drainage system, constructing a drainage pipe network hydraulics model by taking an inspection well as a node and the pipe network flow direction as a directional connection relation.

In some implementations of the first aspect, the solving calculation is performed on the drainage pipe network hydraulic model to obtain inspection well liquid level data and pipeline liquid level data, including:

taking water supply data of users in the urban drainage system area, river channel water level data of the urban drainage system area and control object operation rule data as model boundary conditions, and calculating flow data of the urban drainage system based on the urban drainage rule;

determining a main pipeline and a secondary pipeline of the urban drainage system according to the topology data of the urban drainage system, the hydraulic model of the drainage pipe network and the flow data of the urban drainage system;

Informing a user to set a flow probe in a main pipeline and a secondary pipeline of the urban drainage system;

calculating the external water quantity according to the flow data monitored by the flow probes arranged in the main pipeline and the secondary main pipeline and the water supply data of a user so as to enable the hydraulic model of the drainage pipe network to be in a water quantity balance state;

and solving and calculating the hydraulic model of the drainage pipe network in the water balance state to obtain inspection well liquid level data and pipeline liquid level data.

In some implementations of the first aspect, correcting topology data of the municipal drainage system according to the calculated manhole liquid level data, the pipeline liquid level data, the measured manhole liquid level data, the pipeline liquid level data, includes:

drawing a section of pipe according to topology data of the urban drainage system;

determining a liquid level control point according to the section profile of the pipe section, wherein the liquid level control point is an inspection well node which does not conform to the overall trend of the pipe section;

dividing a correction working unit according to two adjacent liquid level control points in sequence, wherein the correction working unit comprises a first inspection well, a second inspection well, a pipeline between the first inspection well and the second inspection well, a pipeline between an upstream pipeline connected with the first inspection well and a downstream pipeline connected with the second inspection well, the first inspection well is an Mth inspection well traced upstream by an upstream liquid level control point in the two adjacent liquid level control points, and the second inspection well is an Mth inspection well traced downstream by a downstream liquid level control point in the two adjacent liquid level control points;

Dividing an inspection well in the correction working unit and a pipeline connected with the inspection well into inspection well units;

according to the measuring time of the target inspection well liquid level data corresponding to the target inspection well in the inspection well unit, extracting data in preset time periods before and after the measuring time of the target inspection well liquid level data from the calculated target inspection well liquid level data;

calculating a target manhole liquid level deviation according to the extracted data and the measured target manhole liquid level data;

according to the target pipeline liquid level data measuring time corresponding to the target pipeline in the inspection well unit, extracting data in preset time periods before and after the target pipeline liquid level data measuring time from the calculated target pipeline liquid level data;

calculating a target pipeline liquid level deviation according to the extracted data and the measured target pipeline liquid level data;

calculating the liquid level comprehensive deviation of the inspection well unit according to the target inspection well liquid level deviation and the target pipeline liquid level deviation corresponding to the inspection well unit;

taking the most downstream inspection well in the correction working unit as a starting point, taking the most upstream inspection well as an end point, tracing N inspection wells upstream each time, and constructing a correction working pipe section by taking the most upstream inspection well as a construction;

calculating the liquid level comprehensive deviation of the corrected working pipe section according to the liquid level comprehensive deviation of each inspection well unit in the corrected working pipe section;

Calculating the liquid level comprehensive deviation of the correction working unit according to the liquid level comprehensive deviation of each correction working pipe section in the correction working unit;

if the liquid level comprehensive deviation of the correction working unit is larger than or equal to a preset threshold value, judging the liquid level comprehensive deviation of each correction working pipe section in the correction working unit;

if the liquid level comprehensive deviation of the correction working pipe section is greater than or equal to a preset threshold value, judging whether the correction working pipe section comprises a liquid level control point or not;

if the correction working pipe section comprises a liquid level control point, determining the liquid level control point as a point to be rechecked;

if the correction working pipe section does not comprise the liquid level control point, judging whether the correction working pipe section is affected by the downstream liquid level control point or not;

if the correction pipe section is not influenced by the downstream liquid level control point, determining that the correction pipe section is a point to be checked;

notifying the user to reconnaissance each point to be reconnaissad, and updating the topology data of the urban drainage system according to the reconnaissance data.

In some implementations of the first aspect, calculating the target manhole level deviation from the extracted data and the measured target manhole level data includes:

calculating a target manhole liquid level deviation according to the data of which the size is closest to the measured target manhole liquid level data in the extracted data and the measured target manhole liquid level data;

Calculating a target pipeline liquid level deviation according to the extracted data and the measured target pipeline liquid level data, comprising:

and calculating the target pipeline liquid level deviation according to the data of which the size is closest to the measured target pipeline liquid level data in the extracted data and the measured target pipeline liquid level data.

In some implementations of the first aspect, the method further includes:

acquiring target inspection well liquid level data and target pipeline liquid level data of all inspection well units measured by the monitoring equipment during reconnaissance;

and carrying out multi-round correction again until the liquid level comprehensive deviation of each inspection well unit is smaller than a preset threshold value, wherein each round of correction comprises the following steps:

updating a drainage pipe network hydraulic model according to the updated topology data of the urban drainage system;

solving and calculating the updated drainage pipe network hydraulics model to obtain inspection well liquid level data and pipeline liquid level data;

extracting data in preset time periods before and after the target inspection well liquid level data obtained by current calculation from the target inspection well liquid level data according to the current corresponding target inspection well liquid level data measurement time of the target inspection well in the inspection well unit;

calculating a target manhole liquid level deviation according to the extracted data and the currently measured target manhole liquid level data;

Extracting data in the preset time periods before and after the target pipeline liquid level data obtained by current calculation according to the current corresponding target pipeline liquid level data measuring time of the target pipeline in the inspection well unit;

calculating a target pipeline liquid level deviation according to the extracted data and the current measured target pipeline liquid level data;

calculating the liquid level comprehensive deviation of the inspection well unit according to the current corresponding target inspection well liquid level deviation of the inspection well unit and the target pipeline liquid level deviation;

judging the current liquid level comprehensive deviation of each inspection well unit;

if the current comprehensive liquid level deviation of the inspection well unit is greater than or equal to a preset threshold value, but a value smaller than the preset threshold value exists in the current corresponding target inspection well liquid level deviation or the target pipeline liquid level deviation of the inspection well unit, correcting the burial depth of a part with the minimum liquid level deviation in the current inspection well unit according to the burial depth of the part with the liquid level deviation greater than or equal to the preset threshold value;

if the current liquid level comprehensive deviation of the inspection well unit is greater than or equal to a preset threshold value, the current corresponding target inspection well liquid level deviation of the inspection well unit and the target pipeline liquid level deviation of the inspection well unit are both greater than or equal to the preset threshold value, respectively tracing S inspection wells on the upstream and the downstream by taking the target inspection well in the inspection well unit as a midpoint, and constructing a pipe section by taking the S inspection wells as a group;

Judging whether the target inspection well is a liquid level control point or not according to the section profile image of the constructed pipe section;

if the target inspection well is a liquid level control point, determining the target inspection well as a point to be rechecked;

if the target inspection well is not the liquid level control point, judging whether the target inspection well is affected by the downstream liquid level control point or not;

if the target inspection well is not affected by the downstream liquid level control point, determining the target inspection well as a point to be rechecked;

informing a user to reconvey each current point to be reconnaissad, and updating the current topology data of the urban drainage system according to the reconnaissance data;

target manhole liquid level data, target pipeline liquid level data of each manhole unit measured by the monitoring device during the reconnaissance are acquired.

In some implementations of the first aspect, the monitoring device is an RTK device.

In a second aspect, embodiments of the present disclosure provide a correction apparatus for urban drainage system topology data, the apparatus comprising:

the system comprises an acquisition module, a monitoring device and a control module, wherein the acquisition module is used for acquiring urban drainage system topology data obtained by general survey of the urban drainage system, inspection well liquid level data and pipeline liquid level data measured by the monitoring device, and the urban drainage system topology data comprises: inspection well base data, pipeline base data;

The construction module is used for constructing a drainage pipe network hydraulics model according to the topology data of the urban drainage system;

the calculation module is used for solving and calculating the drainage pipe network hydraulics model to obtain inspection well liquid level data and pipeline liquid level data;

the correction module is used for correcting the topology data of the urban drainage system according to the calculated inspection well liquid level data and the drainage pipe network liquid level data, the measured inspection well liquid level data and the measured pipeline liquid level data.

In a third aspect, embodiments of the present disclosure provide an electronic device comprising: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as described above.

In a fourth aspect, embodiments of the present disclosure provide a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform a method as described above.

In the embodiment of the disclosure, a drainage pipe network hydraulics model can be constructed according to urban drainage system topology data obtained by general survey, hydraulic performance of the urban drainage system is simulated according to the drainage pipe network hydraulics model, inspection well liquid level data and pipeline liquid level data are obtained through calculation, and then the inspection well liquid level data and the pipeline liquid level data are combined with the inspection well liquid level data and the pipeline liquid level data which are actually measured to correct the urban drainage system topology data, so that correction efficiency of the urban drainage system topology data is effectively improved.

It should be understood that what is described in this summary is not intended to limit the critical or essential features of the embodiments of the disclosure nor to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. For a better understanding of the present disclosure, and without limiting the disclosure thereto, the same or similar reference numerals denote the same or similar elements, wherein:

FIG. 1 illustrates a flow chart of a method for modifying topology data of an urban drainage system provided by an embodiment of the present disclosure;

FIG. 2 illustrates a cross-sectional view of a pipe segment provided by an embodiment of the present disclosure;

FIG. 3 illustrates a schematic diagram of a fluid level control point and a correction work unit provided by an embodiment of the present disclosure;

FIG. 4 illustrates another cross-sectional view of a pipe segment provided by an embodiment of the present disclosure;

FIG. 5 illustrates another cross-sectional view of a pipe segment provided by an embodiment of the present disclosure;

FIG. 6 illustrates another cross-sectional view of a pipe segment provided by an embodiment of the present disclosure;

FIG. 7 shows a block diagram of a correction device for urban drainage system topology data provided by an embodiment of the present disclosure;

Fig. 8 illustrates a block diagram of an exemplary electronic device capable of implementing embodiments of the present disclosure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the disclosure, are within the scope of the disclosure.

In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Aiming at the problems in the background art, the embodiment of the disclosure provides a method and a device for correcting topology data of an urban drainage system. Specifically, a drainage pipe network hydraulic model can be constructed according to the urban drainage system topology data obtained through general investigation, the hydraulic performance of the urban drainage system is simulated according to the drainage pipe network hydraulic model, inspection well liquid level data and pipeline liquid level data are obtained through calculation, and then the inspection well liquid level data and the pipeline liquid level data are combined with the inspection well liquid level data and the pipeline liquid level data which are actually measured to correct the urban drainage system topology data, so that the correction efficiency of the urban drainage system topology data is effectively improved.

The method and apparatus for modifying topology data of an urban drainage system according to embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a flowchart of a correction method for topology data of an urban drainage system according to an embodiment of the present disclosure, and as shown in fig. 1, the correction method 100 may include the following steps:

s110, obtaining topology data of the urban drainage system, inspection well liquid level data and pipeline liquid level data measured by monitoring equipment, wherein the topology data is obtained by screening the urban drainage system.

Notably, the urban drainage system census operation can be performed on a sunny day, and the urban drainage system topology data can be recorded, which can include: inspection well base data, pipeline base data.

Illustratively, the manhole base data may include: component identification code, natural road elevation, manhole burial depth, manhole diameter; the pipe base data may include: component identification code, start point identification code, end point identification code, section type, section size (pipe diameter), start point burial depth, end point burial depth.

Meanwhile, the inspection well liquid level and the pipeline liquid level can be measured by using the monitoring equipment, and the obtained inspection well liquid level data and pipeline liquid level data are recorded. For example, RTK equipment is used for measuring the liquid level of an inspection well and the liquid level of a pipeline, the RTK liquid level corresponding to the inspection well and the pipeline is recorded, and the measuring time is recorded, so that the accuracy is achieved.

As an example, manhole base data, pipe base data and measured manhole level data, pipe level data in urban drainage system topology data may be recorded as shown in tables 1 and 2, without limitation.

TABLE 1

Component identification code	Natural road elevation	Inspection well burial depth	Diameter of inspection well	RTK level	Measuring time of day

TABLE 2

Optionally, the recorded data are acquired, so that the urban drainage system topology data obtained by general investigation, the measured inspection well liquid level data and the measured pipeline liquid level data can be acquired.

S120, constructing a drainage pipe network hydraulics model according to the topology data of the urban drainage system.

In some embodiments, the drainage pipe network hydraulic model can be constructed according to the topology data of the urban drainage system by taking the inspection well as a node and the pipe network flow direction as a directional connection relation.

And S130, solving and calculating the drainage pipe network hydraulics model to obtain inspection well liquid level data and pipeline liquid level data.

In some embodiments, water supply data of users in the urban drainage system area, river water level data of the urban drainage system area and control operation rule data can be used as model boundary conditions, and based on the urban drainage rule, steady-state analysis of the urban drainage system operation 24H is completed according to the hydrodynamic force Q-H relationship, so that flow data of the urban drainage system is calculated. The calculation formula may be as follows:

Wherein Q is _j Total flow for the upstream manhole; q _i The flow of the i-th node upstream of the node j; a is the hydraulic cross-sectional area; z is the elevation of the bottom of the pipeline; h is a _loss Is the head loss; f (F) _i The pipe fullness at time k.

And according to the topology data of the urban drainage system, the hydraulic model of the drainage pipe network and the flow data of the urban drainage system, carding the main flow direction of the urban drainage system, determining the main pipeline and the secondary pipeline of the urban drainage system, and informing a user to set flow probes in the main pipeline and the secondary pipeline of the urban drainage system.

The number of flow probes from the secondary trunk is not less than 1, and the flow probes of the main pipeline are set according to the access condition of the secondary trunk of the main pipeline.

And calculating the external water quantity according to the flow data monitored by the flow probes arranged in the main pipeline and the secondary pipeline and the water supply data of the water user so as to enable the drainage pipe network hydraulics model to be in a water balance state, and then solving and calculating the drainage pipe network hydraulics model in the water balance state to obtain the liquid level data of the inspection well and the liquid level data of the pipeline.

And S140, correcting the topology data of the urban drainage system according to the calculated inspection well liquid level data and the drainage pipe network liquid level data, the measured inspection well liquid level data and the measured pipeline liquid level data.

In some embodiments, a pipe section profile may be drawn from the urban drainage system topology data and a level control point determined from the pipe section profile. The liquid level control point is a manhole node which does not conform to the integral trend of the pipe section, for example, the manhole buried depth, the pipeline diameter and the like do not conform to the integral trend of the pipe section, and the liquid level control point is a point which has great influence on the integral hydraulic performance of the pipe section and is expressed as a reverse slope, dislocation, ultra-deep, large pipe and small pipe.

Dividing a correction working unit according to two adjacent liquid level control points in sequence, wherein the correction working unit comprises a first inspection well, a second inspection well, a pipeline between the first inspection well and the second inspection well, a pipeline between an upstream pipeline connected with the first inspection well and a downstream pipeline connected with the second inspection well, the first inspection well is an Mth inspection well traced upstream by an upstream liquid level control point in the two adjacent liquid level control points, and the second inspection well is an Mth inspection well traced downstream by a downstream liquid level control point in the two adjacent liquid level control points.

The inspection well in the correction work unit and the pipelines connected with the inspection well are divided into inspection well units. Wherein the inspection well and the pipeline in the inspection well unit are respectively defined as a target inspection well and a target pipeline.

And extracting data in a preset time (for example, 5 minutes) before and after the target inspection well liquid level data measuring time from the calculated target inspection well liquid level data according to the target inspection well liquid level data measuring time corresponding to the target inspection well in the inspection well unit.

And calculating the target inspection well liquid level deviation according to the extracted data and the measured target inspection well liquid level data. For example, the target manhole level deviation may be calculated from data of the extracted data having a size closest to the measured target manhole level data, and the measured target manhole level data.

And extracting data in a preset time (for example, 5 minutes) before and after the target pipeline liquid level data measuring time from the calculated target pipeline liquid level data according to the target pipeline liquid level data measuring time corresponding to the target pipeline in the inspection well unit.

And calculating the target pipeline liquid level deviation according to the extracted data and the measured target pipeline liquid level data. For example, a target pipe level deviation is calculated from the data of the extracted data having a size closest to the measured target pipe level data, and the measured target pipe level data.

The calculation formulas for calculating the target inspection well liquid level deviation and the target pipeline liquid level deviation can be as follows:

Wherein Z is _m Including Z _node And Z _link,i ，Z _node Z is the target inspection well liquid level deviation _link,i For target line level deviation, at Z _m Is Z _node When Z is _obt Z is the target inspection well liquid level data _sim Data that is closest in size to the measured target manhole level data; at Z _m Is Z _link,i When Z is _obt Z is target pipeline liquid level data _sim Is data that is closest in size to the measured target conduit level data.

And calculating the liquid level comprehensive deviation of the inspection well unit according to the target inspection well liquid level deviation and the target pipeline liquid level deviation corresponding to the inspection well unit. The calculation formula may be as follows:

wherein Z is _j For the integrated deviation of the liquid level of the manhole unit, k is the number of parts of the manhole unit, where parts are the manhole and the pipes connected thereto, Z _node Z is the target inspection well liquid level deviation _link,i Is the target pipeline liquid level deviation.

And taking the most downstream inspection well in the correction working unit as a starting point, taking the most upstream inspection well as an end point, and tracing N inspection wells upstream each time, thereby constructing a correction working pipe section.

And calculating the liquid level comprehensive deviation of the corrected working pipe section according to the liquid level comprehensive deviation of each inspection well unit in the corrected working pipe section. The calculation formula may be as follows:

Wherein, zl _j To correct the liquid level comprehensive deviation of the working pipe section, N is the number of inspection well units of the working pipe section, Z _i To correct the integrated deviation of the liquid level of the manhole unit in the working pipe section.

According to the liquid level comprehensive deviation of each correction working pipe section in the correction working unit, calculating the liquid level comprehensive deviation of the correction working unit, wherein a calculation formula can be as follows:

wherein Zu _j For correcting the integrated deviation of the liquid level of the working unit, P is the number of correction working pipe sections of the correction working unit, zl _i For the correction of the integrated deviation of the liquid level of the working pipe section in the working unit.

And judging the liquid level comprehensive deviation of the correction working unit aiming at any correction working unit.

If the liquid level comprehensive deviation of the corrected working unit is smaller than a preset threshold value, the next processing is not carried out on the working unit. Wherein the preset threshold may be 100%/M, M being the number of pipes in the correction work unit.

If the liquid level comprehensive deviation of the correction working unit is larger than or equal to a preset threshold value, judging the liquid level comprehensive deviation of each correction working pipe section in the correction working unit.

If the integrated deviation of the liquid level of the correction working pipe section is smaller than a preset threshold value (for example, 30%), the correction working pipe section is temporarily not subjected to the next processing.

If the liquid level comprehensive deviation of the correction working pipe section is larger than or equal to a preset threshold value, judging whether the correction working pipe section comprises a liquid level control point or not.

If the correction working pipe section comprises a liquid level control point, determining the liquid level control point as a point to be rechecked.

For example, if the correction work pipe section comprises a liquid level control point, the phenomenon that the burial depth of the inspection well is inconsistent with the overall trend of the pipe section, so that the inspection well is in a reverse slope or in an ultra-deep state is caused; or the burial depth of the inspection well is higher than the trend of the whole pipe section, the upstream water flow is not smooth, and the liquid level deviation value of the upstream pipe at the point is positive; or the burial depth of the inspection well is lower than the trend of the whole pipe section, the downstream water flow is not smooth, and the downstream liquid level deviation value of the point is negative; the liquid level control point influences the overall hydraulic performance of the pipeline section, is inconsistent with the actual situation, the burial depth of the inspection well and the burial depth of the related pipeline are doubtful, and the liquid level control point is determined to be a point to be rechecked;

if the correction working pipe section comprises a liquid level control point, the condition that the pipeline burial depth is not consistent with the integral trend of the pipe section is shown, so that the reverse slope or dislocation is caused; or the burial depth of the starting point of the pipeline at the downstream of the control point is higher than the trend of the whole pipeline section, the water flow is unsmooth, the liquid level deviation value of the pipeline at the upstream of the control point is a negative value, and the liquid level deviation value of the pipeline at the downstream of the control point is a positive value; or the end point burial depth of the upstream pipeline of the control point is higher than the trend of the integral pipe section, the water flow is unsmooth, the liquid level deviation value of the upstream pipeline of the upstream inspection well unit of the control point is a negative value, and the liquid level deviation value of the downstream pipeline of the control point is a positive value; the liquid level control point affects the overall hydraulic performance of the pipeline section, is inconsistent with the actual situation, and the buried depth of the pipeline connected with the liquid level control point is determined to be the point to be rechecked;

If the correction working pipe section comprises a liquid level control point, the correction working pipe section is characterized in that the diameter of the pipe is inconsistent with the overall trend of the pipe section, so that a large pipe is connected with a small pipe; in the target pipe section, if the diameter of a downstream pipe of the inspection well unit is smaller than that of an upstream pipe, and the liquid level deviation value of the upstream pipe is negative, the liquid level control point influences the overall hydraulic performance of the pipe section and is inconsistent with the actual situation, the diameter of the downstream pipe is doubtful, and the liquid level control point is determined to be a point to be rechecked.

If the correction working pipe section does not comprise the liquid level control point, judging whether the correction working pipe section is affected by the downstream liquid level control point.

If the correction pipe section is influenced by the downstream liquid level control point, the correction pipe section is not subjected to the next processing.

And if the correction pipe section is not influenced by the downstream liquid level control point, determining the correction pipe section as a point to be checked.

After each correction work pipe section in each correction work unit is traversed, notifying a user to reconvey each determined point to be reconveyed, and updating topology data of the urban drainage system according to reconveying data.

At the same time, target manhole liquid level data, target pipeline liquid level data of each manhole unit measured by the monitoring device during the reconnaissance are acquired.

For example, the method can sort according to the comprehensive deviation of the liquid level of each correction working unit, and sequentially perform corresponding re-investigation work on the points to be re-investigated from the smallest correction working unit, wherein the re-investigation time is required to be not more than half a month from the first investigation time interval, so as to ensure that the conditions of cold and hot weather are consistent, holidays and weather conditions are consistent, the re-investigation time is staggered from the first investigation time, and RTK liquid levels and measurement time of a target inspection well and a target pipeline in the inspection well unit are synchronously recorded, so that recorded re-investigation data, measured target inspection well liquid level data and measured target pipeline liquid level data are obtained.

Notably, to further improve the quality of the urban drainage system topology data, after the first round of correction, the quality inspection method 100 may further include:

The multiple rounds of correction are again performed until the integrated deviation of the fluid level of each manhole unit is less than a preset threshold (e.g., 20%), each round of correction may include:

extracting data in the preset time period before and after the target inspection well liquid level data obtained by current calculation from the target inspection well liquid level data according to the current corresponding target inspection well liquid level data measuring time of the target inspection well in the inspection well unit, and calculating the target inspection well liquid level deviation according to the extracted data and the current measured target inspection well liquid level data;

extracting data in the preset time length before and after the target pipeline liquid level data obtained by current calculation from the target pipeline liquid level data according to the current corresponding target pipeline liquid level data measuring time of the target pipeline in the inspection well unit, and calculating the target pipeline liquid level deviation according to the extracted data and the current measured target pipeline liquid level data;

calculating the liquid level comprehensive deviation of the inspection well units according to the current corresponding target inspection well liquid level deviation and the target pipeline liquid level deviation of the inspection well units, and judging the current liquid level comprehensive deviation of each inspection well unit;

If the current liquid level comprehensive deviation of the inspection well unit is smaller than a preset threshold (for example, 20%), the next processing is not carried out temporarily, and the next round of correction is waited for;

if the current comprehensive liquid level deviation of the inspection well unit is greater than or equal to a preset threshold (for example, 20%), but a value smaller than the preset threshold (for example, 20%) exists in the target inspection well liquid level deviation or the target pipeline liquid level deviation corresponding to the inspection well unit currently, correcting the burial depth of the part with the minimum liquid level deviation in the current inspection well unit according to the burial depth of the part with the liquid level deviation greater than or equal to the preset threshold in the current inspection well unit, so that the calculated liquid level data is consistent with the measured liquid level data;

if the current liquid level comprehensive deviation of the inspection well unit is greater than or equal to a preset threshold (for example, 20%), the current corresponding target inspection well liquid level deviation of the inspection well unit and the target pipeline liquid level deviation of the inspection well unit are both greater than or equal to the preset threshold (for example, 20%), the target inspection well in the inspection well unit is taken as a midpoint, and S inspection wells at the upstream and the downstream are traced respectively, so that a pipe section is constructed by taking the target inspection well as a midpoint;

if the target inspection well is influenced by the downstream liquid level control point, the target inspection well is temporarily not subjected to the next treatment;

after each inspection well unit is traversed, notifying a user to reconvey each current point to be reconveyed, and updating the current topology data of the urban drainage system according to the reconveying data;

The following describes in detail the correction method 100 provided in the embodiment of the present disclosure with reference to fig. 2 to 6, specifically as follows:

(1) And performing general investigation operation of the urban drainage system on a sunny day, recording topology data of the urban drainage system, simultaneously measuring the liquid level of the inspection well and the liquid level of the pipeline by using RTK equipment, recording the obtained RTK liquid level corresponding to the inspection well and the pipeline, and recording the measuring moment.

(2) And combining the data to construct a city drainage system database.

(3) According to the topology data of the urban drainage system, constructing a drainage pipe network hydraulics model by taking an inspection well as a node and the pipe network flow direction as a directional connection relation.

(4) And taking water supply data of users in the urban drainage system area, river water level data of the urban drainage system area and control operation rule data as model boundary conditions, completing steady-state analysis of the urban drainage system operation 24H according to the hydrodynamic force Q-H relationship based on the urban drainage rule, and calculating flow data of the urban drainage system.

(5) And according to the topology data of the urban drainage system, the hydraulic model of the drainage pipe network and the flow data of the urban drainage system, carding the main flow direction of the urban drainage system, determining the main pipeline and the secondary pipeline of the urban drainage system, and informing a user to set flow probes in the main pipeline and the secondary pipeline of the urban drainage system.

(6) And calculating the external water quantity according to the flow data monitored by the flow probes arranged in the main pipeline and the secondary pipeline and the water supply data of the water user so as to enable the drainage pipe network hydraulics model to be in a water balance state, and then solving and calculating the drainage pipe network hydraulics model in the water balance state to obtain the liquid level data of the inspection well and the liquid level data of the pipeline.

(7) Relevant data including pipeline starting point inspection well burial depth, end point inspection well burial depth, pipeline section size, pipeline starting point burial depth, pipeline end point burial depth and the like are obtained from the urban drainage system database, a pipeline section sectional view is drawn, and a liquid level control point is determined according to the pipeline section sectional view. And sequentially tracing 2 inspection wells to the upstream and downstream according to two adjacent liquid level control points, and dividing and correcting the working units.

The section of pipe can be seen in cross section in figure 2, wherein the vertical component is an inspection well and the component connected to the inspection well is a pipe. The liquid level control point and the correction working unit can be shown in fig. 3, wherein the liquid level control point is in a solid line frame, and the correction working unit is in a dotted line frame.

(8) The inspection well in the correction work unit and the pipelines connected with the inspection well are divided into inspection well units.

And extracting data within 5 minutes before and after the target inspection well liquid level data obtained by calculation according to the measurement time of the target inspection well liquid level data corresponding to the target inspection well in the inspection well unit.

And calculating the liquid level deviation of the target inspection well according to the data of the liquid level data of the target inspection well, the size of which is closest to the measurement, in the extracted data and the liquid level data of the target inspection well in the urban drainage system database.

And extracting data within 5 minutes before and after the target pipeline liquid level data obtained by calculation according to the target pipeline liquid level data measuring moment corresponding to the target pipeline in the inspection well unit.

And calculating the liquid level deviation of the target pipeline according to the data of the liquid level data of the target pipeline, the size of which is closest to the measurement, in the extracted data and the liquid level data of the target pipeline in the urban drainage system database.

And calculating the liquid level comprehensive deviation of the inspection well unit according to the target inspection well liquid level deviation and the target pipeline liquid level deviation corresponding to the inspection well unit.

And taking the most downstream inspection well in the correction working unit as a starting point, taking the most upstream inspection well as an end point, and tracing 2 inspection wells upstream each time, thereby constructing a correction working pipe section.

According to the liquid level comprehensive deviation of each inspection well unit in the correction working pipe section, calculating the liquid level comprehensive deviation of the correction working pipe section, and according to the liquid level comprehensive deviation of each correction working pipe section in the correction working unit, calculating the liquid level comprehensive deviation of the correction working unit.

(9) Based on the liquid level comprehensive deviation of each correction working unit and the liquid level comprehensive deviation of each correction working pipe section in each correction working unit, determining a point to be checked, wherein the point to be checked is specifically as follows:

(9-1) if the integrated deviation of the liquid level of the correction working unit is less than 100%/M, the next process is not performed on the working unit, and M is the number of pipes in the correction working unit.

(9-2) if the liquid level integrated deviation of the correction work unit is greater than or equal to 100%/M, judging the liquid level integrated deviation of the correction work pipe section in the correction work unit, specifically:

(9-2-1) if the integrated deviation of the liquid level of the corrected working pipe section is less than 30%, the corrected working pipe section is temporarily not subjected to the next process.

(9-2-2) if the integrated deviation of the liquid level of the correction work pipe section is greater than or equal to 30%, acquiring relevant data from the urban drainage system database, drawing a pipe section sectional view, and judging whether the correction work pipe section comprises a liquid level control point according to the pipe section sectional view.

The section of pipe drawn at this time may be as shown in fig. 4.

(9-2-3) if the correction working pipe section includes a liquid level control point, determining the liquid level control point as a point to be rechecked, specifically:

(9-2-3-1) if the correction work pipe section comprises a liquid level control point, showing that the buried depth of the inspection well is not consistent with the integral trend of the pipe section, and causing a reverse slope or ultra-deep; or the burial depth of the inspection well is higher than the trend of the whole pipe section, the upstream water flow is not smooth, and the liquid level deviation value of the upstream pipe at the point is positive; or the burial depth of the inspection well is lower than the trend of the whole pipe section, the downstream water flow is not smooth, and the downstream liquid level deviation value of the point is negative; the liquid level control point influences the overall hydraulic performance of the pipeline section, is inconsistent with the actual situation, the inspection well burial depth and the related pipeline burial depth are doubtful, and the liquid level control point is determined to be the point to be rechecked.

(9-2-3-2) if the correction work pipe section comprises a liquid level control point, the liquid level control point is shown that the buried depth of the pipeline is not consistent with the integral trend of the pipe section, so that the reverse slope or dislocation is caused; or the burial depth of the starting point of the pipeline at the downstream of the control point is higher than the trend of the whole pipeline section, the water flow is unsmooth, the liquid level deviation value of the pipeline at the upstream of the control point is a negative value, and the liquid level deviation value of the pipeline at the downstream of the control point is a positive value; or the end point burial depth of the upstream pipeline of the control point is higher than the trend of the integral pipe section, the water flow is unsmooth, the liquid level deviation value of the upstream pipeline of the upstream inspection well unit of the control point is a negative value, and the liquid level deviation value of the downstream pipeline of the control point is a positive value; the liquid level control point influences the overall hydraulic performance of the pipeline section, is inconsistent with the actual situation, the buried depth of the pipeline connected with the liquid level control point is determined to be the point to be recrudesced.

(9-2-3-3) if the correction work pipe section comprises a liquid level control point, the liquid level control point is expressed as that the diameter of the pipe is inconsistent with the overall trend of the pipe section, so that the pipe is connected with the small pipe; in the target pipe section, if the diameter of a downstream pipe of the inspection well unit is smaller than that of an upstream pipe, and the liquid level deviation value of the upstream pipe is negative, the liquid level control point influences the overall hydraulic performance of the pipe section and is inconsistent with the actual situation, the diameter of the downstream pipe is doubtful, and the liquid level control point is determined to be a point to be rechecked.

(9-2-4) if the correction work pipe section does not include the liquid level control point, judging whether the correction work pipe section is affected by the downstream liquid level control point.

(9-3) repeating (9-2-1) to (9-2-4), traversing all correction work pipe sections in the correction work unit, and determining all to-be-rechecked points in the correction work unit.

(9-4) repeating (9-1) to (9-3), traversing all the correction work units, and determining all points to be rechecked in the urban drainage system.

(10) After each correction work pipe section in each correction work unit is traversed, notifying a user to reconvey each determined point to be reconveyed, recording reconveying data, and synchronously recording RTK liquid levels of a target inspection well and a target pipeline in the inspection well unit measured by the monitoring equipment and corresponding measuring moments.

(11) Updating the topology data of the urban drainage system in the urban drainage system database according to the reconnaissance data, and storing the RTK liquid levels of the target inspection well and the target pipeline in the recorded inspection well unit and the corresponding measurement time into the urban drainage system database.

(12) The multiple rounds of correction are again performed until the integrated deviation of the fluid level of each manhole unit is less than 20%, each round of correction may include:

calculating the comprehensive liquid level deviation of the inspection well units based on the current calculated inspection well liquid level data, pipeline liquid level data and RTK liquid level and measuring time corresponding to the inspection well units stored in the urban drainage system, wherein the step (8) is that the current comprehensive liquid level deviation of each inspection well unit is judged;

if the current liquid level comprehensive deviation of the inspection well unit is less than 20%, the next processing is not carried out temporarily, and the next round of correction is waited for;

if the current liquid level comprehensive deviation of the inspection well unit is greater than or equal to 20%, but a value smaller than 20% exists in the current corresponding target inspection well liquid level deviation or the target pipeline liquid level deviation of the inspection well unit, correcting the burial depth of a part with the minimum liquid level deviation in the current inspection well unit according to the burial depth of the part with the liquid level deviation greater than or equal to a preset threshold value in the current inspection well unit, so that the calculated liquid level data is consistent with the measured liquid level data, and the section of the pipe before correction is shown in fig. 5 and the section of the pipe after correction is shown in fig. 6;

If the current liquid level comprehensive deviation of the inspection well unit is greater than or equal to 20%, the current corresponding target inspection well liquid level deviation of the inspection well unit and the target pipeline liquid level deviation of the inspection well unit are both greater than or equal to 20%, respectively tracing the 5 inspection wells at the upstream and downstream by taking the target inspection well in the inspection well unit as a middle point, and constructing a pipe section by taking the upper and lower 5 inspection wells as a group;

after each inspection well unit is traversed, notifying a user to re-survey each current point to be re-checked, recording re-survey data, and synchronously recording RTK liquid levels of a target inspection well and a target pipeline in the inspection well unit and corresponding measuring moments measured by the monitoring equipment.

Updating the topology data of the urban drainage system in the urban drainage system database according to the reconnaissance data, and storing the RTK liquid levels of the target inspection well and the target pipeline in the recorded inspection well unit and the corresponding measurement time into the urban drainage system database.

According to the embodiment of the disclosure, the following technical effects are achieved:

the working flow of the urban drainage system, in which the census work and the temporary liquid level record are carried out simultaneously, is provided as one of the ways for obtaining the detailed operation record of the urban drainage system, and solves the problem of limited coverage of the traditional liquid level monitoring;

dividing the urban drainage system into an independent correction working unit and an independent correction working pipe section, gradually determining a liquid level control point from line to point, focusing on main contradiction of the liquid level influence of the urban drainage system, and reducing reconnaissance workload;

the comprehensive liquid level deviation of the correction working unit is used as a reconnaissance priority index, so that the flexible and full application of RTK equipment is realized, the purchase, distribution and operation and maintenance work of a common liquid level monitoring device are reduced, and the workload in the early period of reconnaissance is reduced according to local conditions;

the hydraulic Q-H relation of the upstream and downstream linkage is used for realizing the temporary estimation of the liquid level of the whole pipe section, combining with the high-precision temporary measurement liquid level record of the general survey RTK of the urban drainage system, and calculating the liquid level deviation value of each point position by taking the nearest value from the calculation results of 5 minutes before and after the RTK liquid level measurement time so as to reduce the error influence caused by the asynchronism of the record and the measurement time and reduce the error influence caused by solving the phase difference of a drainage pipe network hydraulic model;

The hydrodynamic force influence of the liquid level control point based on the upstream-downstream relation propagation is considered, the integral liquid level error analysis of the pipeline is completed, and the most unreasonable topological point position is determined; according to the liquid level deviation value and the pipeline deviation value of each point position, the self topology data correction iteration is completed, and the hydrodynamic performance of the corrected topology data based on the model is guaranteed to be matched with the actual performance.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present disclosure is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present disclosure. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all alternative embodiments, and that the acts and modules referred to are not necessarily required by the present disclosure.

The foregoing is a description of embodiments of the method, and the following further describes embodiments of the present disclosure through examples of apparatus.

Fig. 7 illustrates a block diagram of a correction device for topology data of an urban drainage system according to an embodiment of the present disclosure, and as shown in fig. 7, the correction device 700 may include:

The obtaining module 710 is configured to obtain topology data of the urban drainage system obtained by census of the urban drainage system, and inspection well liquid level data and pipeline liquid level data measured by the monitoring device, where the topology data of the urban drainage system includes: inspection well base data, pipeline base data.

The construction module 720 is configured to construct a drainage pipe network hydraulics model according to the topology data of the urban drainage system.

The calculation module 730 is configured to solve and calculate the hydraulic model of the drainage pipe network, so as to obtain inspection well liquid level data and pipeline liquid level data.

The correction module 740 is configured to correct topology data of the urban drainage system according to the calculated inspection well liquid level data, drainage pipe network liquid level data, measured inspection well liquid level data and pipe liquid level data.

It can be appreciated that each module/unit in the correction device 700 shown in fig. 7 has a function of implementing each step in the correction method 100 shown in fig. 1, and can achieve the corresponding technical effects, which are not described herein for brevity.

Fig. 8 illustrates a block diagram of an exemplary electronic device capable of implementing embodiments of the present disclosure. Electronic device 800 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic device 800 may also represent various forms of mobile devices, such as personal digital assistants, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.

As shown in fig. 8, the electronic device 800 may include a computing unit 801 that may perform various appropriate actions and processes according to computer programs stored in a Read Only Memory (ROM) 802 or loaded from a storage unit 808 into a Random Access Memory (RAM) 803. In the RAM803, various programs and data required for the operation of the electronic device 800 can also be stored. The computing unit 801, the ROM802, and the RAM803 are connected to each other by a bus 804. An input/output (I/O) interface 805 is also connected to the bus 804.

Various components in electronic device 800 are connected to I/O interface 805, including: an input unit 806 such as a keyboard, mouse, etc.; an output unit 807 such as various types of displays, speakers, and the like; a storage unit 808, such as a magnetic disk, optical disk, etc.; and a communication unit 809, such as a network card, modem, wireless communication transceiver, or the like. The communication unit 809 allows the electronic device 800 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.

The computing unit 801 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 801 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 801 performs the various methods and processes described above, such as method 100. For example, in some embodiments, the method 100 may be implemented as a computer program product, including a computer program, tangibly embodied on a computer-readable medium, such as the storage unit 808. In some embodiments, part or all of the computer program may be loaded and/or installed onto device 800 via ROM802 and/or communication unit 809. When a computer program is loaded into RAM803 and executed by computing unit 801, one or more steps of method 100 described above may be performed. Alternatively, in other embodiments, the computing unit 801 may be configured to perform the method 100 by any other suitable means (e.g., by means of firmware).

The various embodiments described above herein may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems-on-a-chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of this disclosure, a computer-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a computer-readable storage medium would include one or more wire-based electrical connections, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

It should be noted that the present disclosure further provides a non-transitory computer readable storage medium storing computer instructions, where the computer instructions are configured to cause a computer to perform the method 100 and achieve corresponding technical effects achieved by performing the method according to the embodiments of the present disclosure, which are not described herein for brevity.

In addition, the present disclosure also provides a computer program product comprising a computer program which, when executed by a processor, implements the method 100.

To provide for interaction with a user, the embodiments described above may be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The above-described embodiments may be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the internet.

The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server incorporating a blockchain.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the disclosed aspects are achieved, and are not limited herein.

The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. A method for modifying topology data of an urban drainage system, the method comprising:

obtaining urban drainage system topology data obtained by general survey of the urban drainage system, inspection well liquid level data and pipeline liquid level data measured by monitoring equipment, wherein the urban drainage system topology data comprises: inspection well base data, pipeline base data;

solving and calculating the drainage pipe network hydraulics model to obtain inspection well liquid level data and pipeline liquid level data;

2. The method of claim 1, wherein constructing a drainage network hydraulics model from the urban drainage system topology data comprises:

and constructing a drainage pipe network hydraulics model by taking the inspection well as a node and the pipe network flow direction as a directional connection relation according to the topology data of the urban drainage system.

3. The method of claim 1, wherein the solving the drainage network hydraulic model to obtain inspection well liquid level data and pipeline liquid level data comprises:

determining a main pipeline and a secondary pipeline of the urban drainage system according to the topological data of the urban drainage system, the hydraulic model of the drainage pipe network and the flow data of the urban drainage system;

notifying a user to set a flow probe in a main pipeline and a secondary pipeline of the urban drainage system;

calculating the external water quantity according to the flow data monitored by the flow probes arranged on the main pipeline and the secondary main pipeline and the water supply data of the user so as to enable the drainage pipe network hydraulics model to be in a water balance state;

4. The method of claim 1, wherein the modifying the municipal drainage system topology data based on the calculated manhole level data, the pipe level data, the measured manhole level data, the pipe level data, comprises:

Drawing a section of pipe according to the topology data of the urban drainage system;

according to the measuring time of the liquid level data of the target inspection well corresponding to the target inspection well in the inspection well unit, extracting data in preset time periods before and after the measuring time of the liquid level data of the target inspection well from the calculated liquid level data of the target inspection well;

calculating the comprehensive liquid level deviation of the inspection well unit according to the target inspection well liquid level deviation and the target pipeline liquid level deviation corresponding to the inspection well unit;

taking the most downstream inspection well in the correction working unit as a starting point, taking the most upstream inspection well as an end point, and tracing N inspection wells upstream each time, thereby constructing a correction working pipe section;

If the liquid level comprehensive deviation of the corrected working pipe section is greater than or equal to a preset threshold value, judging whether the corrected working pipe section comprises a liquid level control point or not;

if the correction working pipe section does not comprise a liquid level control point, judging whether the correction working pipe section is affected by a downstream liquid level control point or not;

if the correction pipe section is not influenced by the downstream liquid level control point, determining the correction pipe section as a point to be checked;

notifying a user to reconnaissance each point to be reconnaissad, and updating the topology data of the urban drainage system according to the reconnaissance data.

5. The method of claim 4, wherein calculating a target manhole level deviation from the extracted data and the measured target manhole level data comprises:

calculating the target pipeline liquid level deviation according to the extracted data and the measured target pipeline liquid level data, comprising:

6. The method according to claim 4, wherein the method further comprises:

extracting data in the preset time period before and after the target inspection well liquid level data obtained by current calculation from the target inspection well liquid level data according to the current corresponding target inspection well liquid level data measurement time of the target inspection well in the inspection well unit;

calculating the comprehensive liquid level deviation of the inspection well unit according to the current corresponding target inspection well liquid level deviation of the inspection well unit and the target pipeline liquid level deviation;

if the current comprehensive liquid level deviation of the inspection well unit is greater than or equal to a preset threshold value, but a value smaller than the preset threshold value exists in the current corresponding target inspection well liquid level deviation or the target pipeline liquid level deviation of the inspection well unit, correcting the burial depth of a component with the minimum liquid level deviation in the current inspection well unit according to the burial depth of the component with the minimum liquid level deviation in the current inspection well unit;

Judging whether the target inspection well is a liquid level control point or not according to the section profile image corresponding to the constructed pipe section;

if the target inspection well is not a liquid level control point, judging whether the target inspection well is affected by a downstream liquid level control point or not;

7. The method of any one of claims 1-6, wherein the monitoring device is an RTK device.

8. A correction device for urban drainage system topology data, the device comprising:

and the correction module is used for correcting the topology data of the urban drainage system according to the calculated inspection well liquid level data and drainage pipe network liquid level data, the measured inspection well liquid level data and the measured pipeline liquid level data.

9. An electronic device, the electronic device comprising:

at least one processor;

and a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-7.

10. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1-7.