Municipal engineering digital transfer management platform based on multi-source data fusion

Abstract

The invention provides a municipal engineering digital transfer management platform based on multi-source data fusion, which relates to the technical field of digital transfer and comprises a data acquisition module, a data fusion processing module and a data management transfer module. The data acquisition module is used for acquiring multi-source data of municipal engineering through a database and the Internet of Things; the data fusion processing module is used for performing data standardization on the multi-source data of the municipal engineering to obtain standardized data of the municipal engineering; the data management and transfer module is used for establishing a data management platform and managing and transferring standardized data; according to the municipal engineering digital handover management platform, the actual progress of the municipal engineering can be accurately judged and the actual information of the municipal engineering can be completely handed over by acquiring the multi-source data, so that the problem that the handover of the existing municipal engineering digital handover management platform does not accord with the actual progress of the municipal engineering, resulting in the missing of the handover data is solved.

Description

Technical Field

[0001] The present invention relates to the field of digital handover technology, and in particular to a municipal engineering digital handover management platform based on multi-source data fusion. Background Art

[0002] With the rapid development of information technology, the field of municipal engineering is undergoing a profound transformation from traditional management mode to digital and intelligent transformation. As a key link in this transformation process, digital handover aims to achieve comprehensive collection, processing, storage, transmission and sharing of engineering data through advanced information technology means to improve the efficiency, quality and safety of engineering management.

[0003] In the prior art, when digital handover is performed, the data is usually classified and then transmitted and handed over accordingly. For example, in the publication number CN116243888A, a data handover management system for power transmission and transformation projects is disclosed. The problems of weak surface data foundation, incomplete and inconsistent data, imperfect deep data management system, and unclear internal management functions are dealt with. A sound, complete and standardized data handover management system for power transmission and transformation projects is formed; however, the above handover method is not suitable for the existing digital handover management of municipal projects. In the process of digital handover management of municipal projects, the handover progress of municipal projects is not regulated according to the real-time status of municipal projects. Direct handover of the digital data of municipal projects will result in incomplete data due to the actual incompleteness of the municipal projects. Therefore, a digital handover management platform for municipal projects based on multi-source data fusion is needed to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a digital handover management platform for municipal engineering projects based on multi-source data fusion. By acquiring multi-source data, it is possible to accurately judge the actual progress of municipal engineering projects and fully hand over the actual information of municipal engineering projects, so as to solve the problem that the handover of the existing digital handover management platform for municipal engineering projects is inconsistent with the actual progress of municipal engineering projects, resulting in missing handover data.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A municipal engineering digital handover management platform based on multi-source data fusion, the management platform includes a data acquisition module, a data fusion processing module and a data management handover module;

[0007] The data acquisition module is used to collect multi-source data of municipal engineering through database and Internet of Things;

[0008] The data fusion processing module is used to standardize the multi-source data of municipal engineering to obtain standardized data of municipal engineering;

[0009] The data management and transfer module is used to establish a data management platform to manage and transfer standardized data.

[0010] Furthermore, the multi-source data of the municipal engineering project includes basic data, progress data and other data of the municipal engineering project, wherein the basic data includes project data, safety management data and progress planning data of the municipal engineering project; the progress data is the actual progress data of the municipal engineering project; and the other data includes traffic flow data and meteorological data of the municipal engineering project;

[0011] The data acquisition module is configured with a basic data acquisition unit, a progress data acquisition unit and other data acquisition units. The basic data acquisition unit is configured with a basic data acquisition strategy. The basic data acquisition strategy includes obtaining the project data and progress planning data of the municipal engineering project from the official website database, obtaining the safety management records of the municipal engineering project through the construction unit, and setting them as safety management data.

[0012] Furthermore, the actual progress data includes construction unit progress data and image progress data; the progress data acquisition unit is configured with a progress data acquisition strategy, and the progress data acquisition strategy includes determining the construction unit of the municipal project, obtaining the construction unit progress data through the construction unit records, and obtaining the image progress data through the image records.

[0013] Furthermore, the other data collection units are configured with a traffic flow data collection strategy, which includes calling cameras around municipal projects, capturing and counting the flow of people and vehicles around municipal projects in real time within n units of time, and bringing them into the traffic flow data calculation formula In the figure, we can get the surrounding traffic flow data; where R i is the flow of people per unit time, is the average unit flow rate in n unit time, C i is the traffic flow per unit time, is the average unit vehicle flow in n unit time.

[0014] Furthermore, the other data collection units are also configured with a meteorological data collection strategy, which includes acquiring real-time weather in the area where the municipal project is located through the Internet of Things and setting it as meteorological data.

[0015] Furthermore, the data fusion processing module includes an image standardization unit and a data standardization unit. The image standardization unit is configured with an image standardization strategy. The image standardization strategy includes acquiring image progress data, extracting specific edge features from an image of the image progress data, converting them into numerical form through an image processing algorithm, and obtaining standardized image data.

[0016] Furthermore, the data standardization unit is configured with a data standardization strategy, which includes integrating the acquired project data, safety management data, schedule planning data, construction unit schedule data, traffic flow data, meteorological data and standardized image data to obtain a multi-source data set, comparing the multi-source data set, and obtaining missing values, duplicate values ​​and erroneous data through data description and preliminary analysis; deleting duplicate values, and correcting or deleting erroneous data according to the error type and business needs; determining the cause of the missing value, filling the missing value with the data in the database, and setting the processed multi-source data set as municipal engineering numbers.

[0017] Further, the data management and handover module is configured with a data classification unit and a data management unit, the data classification unit is configured with a data classification strategy, the data classification strategy includes reading the municipal engineering digital, obtaining the progress planning data, the construction unit progress data and the standardized image data of the municipal engineering, judging whether the municipal engineering is in the planned completion state at this time through the progress planning data, when the progress planning data shows that the municipal engineering is completed, marking the municipal engineering as a planned completed municipal engineering, and when the progress planning data shows that the municipal engineering is not completed, marking the municipal engineering as a planned unfinished municipal engineering;

[0018] The progress data of the construction unit of the planned completed municipal engineering project and the standardized image data are compared to determine whether the progress data input of the construction unit is accurate. When the progress data of the construction unit is inconsistent with the standardized image data, the progress data of the planned completed municipal engineering project is corrected using the standardized image data progress to obtain the corrected actual progress data. The corrected actual progress data is used to determine whether the municipal engineering project is in an actual completion state. When the corrected actual progress data shows that the municipal engineering is completed at this time, it is determined that the municipal engineering is in an actual completion state, and the municipal engineering is marked as an actually completed municipal engineering; when the corrected actual progress data shows that the municipal engineering is not completed at this time, it is determined that the municipal engineering is not in an actual completion state, and the municipal engineering is marked as an actually uncompleted municipal engineering.

[0019] Further, the data management unit is configured with a data handover strategy, which includes fully handing over the municipal engineering numbers of municipal engineering projects in an actual completed state, pre-handing over the municipal engineering numbers of municipal engineering projects in an actual unfinished state, and storing the municipal engineering numbers of municipal engineering projects in a planned unfinished state;

[0020] Further, the pre-handover processing includes: obtaining the progress planning data and the progress data of the construction unit of the municipal engineering from the municipal engineering digital data, obtaining the estimated completion time and start time of the municipal engineering from the progress planning data, obtaining the actual construction duration from the progress data of the construction unit, obtaining the progress duration corresponding to the progress data of the construction unit in the planning progress data, and setting it as the estimated progress duration;

[0021] The difference between the estimated completion time and the start time is set as the estimated completion time, and the difference between the actual progress time and the start time is set as the actual construction time;

[0022] Substitute the actual construction time, estimated completion time and estimated progress time into the completion estimation formula T = k × s0 -k

[0023] s1, the pre-handover time is obtained; where T is the pre-handover time, k is the actual construction time, s0 is the pre-completion time, and s1 is the pre-progress time;

[0024] The municipal engineering project data will be handed over after the pre-handover period.

[0025] Beneficial effects of the present invention: The present invention firstly collects data from various aspects of municipal engineering through a data collection module, integrates data from different channels, formats and precisions, and significantly improves the integrity and accuracy of the data through reasonable data processing and analysis;

[0026] The present invention also analyzes the status of municipal engineering and transfers municipal engineering figures in different states in batches, thereby avoiding the loss of municipal engineering figures due to multiple transfers or large-scale transfers at the same time, and improving the efficiency and accuracy of the transfer of municipal engineering figures.

[0027] Advantages of additional aspects of the present invention will be given in part in the description of the following specific embodiments, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 This is a principle block diagram of the management platform of the present invention;

[0030] Figure 2 This is a schematic diagram of the digital classification of municipal engineering projects according to the present invention. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] It should be noted that the terms used herein are for describing specific embodiments only and are not intended to be limiting of exemplary embodiments according to the present invention.

[0033] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0034] See also Figure 1 As shown, the present application provides a municipal engineering digital handover management platform based on multi-source data fusion, the management platform includes a data acquisition module, a data fusion processing module and a data management handover module;

[0035] The data acquisition module is used to collect multi-source data of municipal projects through databases and the Internet of Things;

[0036] The multi-source data of municipal engineering includes basic data, progress data and other data of municipal engineering. Basic data includes project data, safety management data and progress planning data of municipal engineering; progress data refers to the actual progress data of municipal engineering; other data includes traffic flow data and meteorological data of municipal engineering;

[0037] The data collection module is configured with a basic data collection unit, a progress data collection unit and other data collection units. The basic data collection unit is configured with a basic data collection strategy. The basic data collection strategy includes obtaining project data and progress planning data of municipal engineering from the official website database. In the specific implementation process, the project data includes project name, project number, project location, construction content, construction scale, total project investment, start and completion dates, among which the completion date is generally the expected completion date. The progress planning data includes the project's overall progress plan and phased goals. For example, the progress plan of a project is to be completed within 6 months. The phased goals include completing the construction progress of area a within the first month, completing the construction progress of area b within the second to third months, and completing the construction progress in area c within the fourth to sixth months.

[0038] Obtain the safety management records of municipal projects through the construction unit and set them as safety management data. In the specific implementation process, the safety management records include the safety management system: the safety production responsibility system and safety operating procedures formulated by the project; safety inspection records: regular safety inspections, special inspection records and rectification notices; safety accidents and handling: the occurrence of safety accidents, cause analysis and handling results; and safety education and training: safety education and training records and assessment results of project participants;

[0039] The actual progress data includes the construction unit progress data and the image progress data; the progress data acquisition unit is configured with a progress data acquisition strategy, which includes determining the construction unit of the municipal engineering project, obtaining the construction unit progress data through the construction unit records, and obtaining the image progress data through the image records. In the specific implementation process, the construction unit progress data is the phased progress provided by the construction unit, such as completing the construction in area d within the second month; the image progress data is an image with the same recording time as the construction unit progress data, such as an image of the completion of the construction of area d collected within the second month.

[0040] Other data collection units are equipped with traffic flow data collection strategies, which include calling up cameras around municipal projects, capturing and counting the flow of people and vehicles around municipal projects in n units of time in real time, and bringing in traffic flow data calculation formulas In the figure, we can get the surrounding traffic flow data; where R i is the flow of people per unit time, is the average unit flow rate in n unit time, C i is the traffic flow per unit time, is the average unit vehicle flow in n unit time. In the specific implementation process, the change of traffic flow data can reflect the impact of municipal engineering on the surrounding areas. Therefore, it is necessary to collect traffic flow in the surrounding areas of municipal engineering. For example, when n is 4, R1, R2, R3 and R4 are 5, 4, 6 and 5 respectively. is 5, C1, C2, C3 and C4 are 3, 4, 3 and 2 respectively, is 3, and J is calculated to be 1;

[0041] Other data collection units are also equipped with meteorological data collection strategies, which include obtaining real-time weather conditions in the area where the municipal project is located through the Internet of Things and setting them as meteorological data; in the specific implementation process, weather conditions will affect the progress of the municipal project, and collecting the meteorological environment during the implementation of the municipal project can adjust the planning of subsequent municipal projects;

[0042] The data fusion processing module is used to convert and clean the multi-source data of municipal engineering to obtain standardized data of municipal engineering;

[0043] The data fusion processing module includes an image standardization unit and a data standardization unit. The image standardization unit is configured with an image standardization strategy. The image standardization strategy includes obtaining image progress data, extracting specific edge features from the image of the image progress data, converting them into numerical form through an image processing algorithm, and obtaining standardized image data. In the specific implementation process, the image is inconsistent with other data formats, which is inconvenient to store and compare. Therefore, the image is converted into a numerical value through an image processing algorithm to facilitate subsequent comparison. The image processing algorithm selects an edge detection algorithm to obtain the edge data of the building during the construction process by extracting the edge of the building;

[0044] The data standardization unit is configured with a data standardization strategy, which includes integrating the acquired project data, safety management data, schedule planning data, construction unit schedule data, traffic flow data, meteorological data and standardized image data to obtain a multi-source data set, comparing the multi-source data set, identifying problems in the data through data description and preliminary analysis, and obtaining missing values, duplicate values ​​and erroneous data; deleting duplicate values, and correcting or deleting erroneous data according to the error type and business needs; determining the reasons for the missing values, filling the missing values ​​with data in the database, and setting the processed multi-source data set as municipal engineering figures;

[0045] The data management and transfer module is used to establish a data management platform to manage and transfer standardized data;

[0046] See also Figure 2 As shown, Figure 2 The digital classification diagram of municipal engineering of the present invention is provided. The data management and handover module is provided with a data classification unit and a data management unit. The data classification unit is provided with a data classification strategy. The data classification strategy includes reading the municipal engineering digital data, obtaining the progress planning data of the municipal engineering, the progress data of the construction unit and the standardized image data, and judging whether the municipal engineering is in the planned completion state at this time through the progress planning data;

[0047] When the progress planning data shows that the municipal project is completed, the municipal project is marked as a planned completed municipal project. When the progress planning data shows that the municipal project is not completed, the municipal project is marked as a planned uncompleted municipal project. In the specific implementation process, for example, if the progress planning data of the first municipal project shows that it will be completed in August, and the progress planning data of the second municipal project shows that it will be completed in October, and it is August at this time, then the first municipal project is in the planned completed state, and the second municipal project is a planned uncompleted municipal project.

[0048] Compare the progress data of the construction unit of the planned completed municipal engineering project with the standardized image data to determine whether the progress data input of the construction unit is accurate. When the progress data of the construction unit is inconsistent with the standardized image data, use the standardized image data progress to correct the progress data of the planned completed municipal engineering project to obtain the corrected actual progress data;

[0049] The corrected actual progress data is used to determine whether the municipal project is in an actual completion state. During the specific implementation process, if the municipal project is delayed due to weather or traffic, the planned progress data and the actual progress data will be inconsistent. Therefore, it is necessary to make a second judgment on the municipal project in the planned completion state; when the corrected actual progress data shows that the municipal project is completed at this time, it is determined that the municipal project is in an actual completion state, and the municipal project is marked as an actually completed municipal project; when the corrected actual progress data shows that the municipal project is not completed at this time, it is determined that the municipal project is not in an actual completion state, and the municipal project is marked as an actually uncompleted municipal project.

[0050] The data management unit is configured with a data handover strategy, which includes fully handing over the municipal engineering figures of municipal engineering projects that are actually completed, pre-handing over the municipal engineering figures of municipal engineering projects that are actually unfinished, and storing the municipal engineering figures of municipal engineering projects that are planned to be unfinished. In the specific implementation process, there will be a subsequent data collection process for municipal engineering projects that are actually unfinished, and direct handover may result in the problem of subsequent data fragmentation and missing.

[0051] The pre-handover processing includes: obtaining the progress planning data and construction unit progress data of the municipal project from the municipal project data, obtaining the estimated completion time and start time of the municipal project from the progress planning data, obtaining the actual construction time from the construction unit progress data, obtaining the progress time corresponding to the construction unit progress data in the planning progress data, and setting it as the estimated progress time;

[0052] The difference between the estimated completion time and the start time is set as the estimated completion time, and the difference between the actual progress time and the start time is set as the actual construction time;

[0053] Substitute the actual construction time, estimated completion time and estimated progress time into the completion estimation formula T = k × s0 -k

[0054] s1, the pre-handover time is obtained; where T is the pre-handover time, k is the actual construction time, s0 is the pre-completion time, and s1 is the pre-progress time; in the specific implementation process, for example, if the actual construction time of a municipal project is 30 days, the pre-completion time is 25 days, and the pre-progress time is 20 days, then the pre-handover time of the municipal project is 7.5 days;

[0055] The municipal engineering project data will be handed over after the pre-handover period.

[0056] Working principle: First, the data acquisition module can collect multi-source data of municipal engineering based on database and Internet of Things; the data fusion processing module can standardize the multi-source data of municipal engineering to obtain standardized data of municipal engineering; and the data management and transfer module can establish a data management platform to manage and transfer standardized data.

[0057] It should be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a completely hardware embodiment, a completely software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program code. Among them, the storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory, electrically erasable programmable read-only memory, erasable programmable read-only memory, programmable read-only memory, read-only memory, magnetic memory, flash memory, magnetic disk or optical disk. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which is implemented in the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0058] The above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A municipal engineering digital handover management platform based on multi-source data fusion, characterized by: The platform includes a data acquisition module, a data fusion processing module and a data management and handover module; The data acquisition module is used to collect multi-source data of municipal engineering through database and Internet of Things; The data fusion processing module is used to standardize the multi-source data of municipal engineering to obtain standardized data of municipal engineering; The data management and transfer module is used to establish a data management platform to manage and transfer standardized data.

2. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 1 is characterized in that: The multi-source data of the municipal engineering project includes basic data, progress data and other data of the municipal engineering project. The basic data includes project data, safety management data and progress planning data of the municipal engineering project; the progress data is the actual progress data of the municipal engineering project; the other data includes traffic flow data and meteorological data of the municipal engineering project; The data acquisition module is configured with a basic data acquisition unit, a progress data acquisition unit and other data acquisition units. The basic data acquisition unit is configured with a basic data acquisition strategy. The basic data acquisition strategy includes obtaining the project data and progress planning data of the municipal engineering project from the official website database, obtaining the safety management records of the municipal engineering project through the construction unit, and setting them as safety management data.

3. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 2 is characterized in that: The actual progress data includes construction unit progress data and image progress data; the progress data acquisition unit is configured with a progress data acquisition strategy, and the progress data acquisition strategy includes determining the construction unit of the municipal project, obtaining the construction unit progress data through the construction unit record, and obtaining the image progress data through the image record.

4. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 3 is characterized in that: The other data collection units are configured with a traffic flow data collection strategy, which includes calling cameras around municipal projects, capturing and counting the flow of people and vehicles around municipal projects in real time within n units of time, and bringing them into the traffic flow data calculation formula In the figure, we can get the surrounding traffic flow data; where R i is the flow of people per unit time, is the average unit flow rate in n unit time, C i is the traffic flow per unit time, is the average unit vehicle flow in n unit time.

5. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 4 is characterized in that: The other data collection units are also configured with a meteorological data collection strategy, which includes obtaining real-time weather in the area where the municipal project is located through the Internet of Things and setting it as meteorological data.

6. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 5 is characterized in that: The data fusion processing module includes an image standardization unit and a data standardization unit. The image standardization unit is configured with an image standardization strategy. The image standardization strategy includes acquiring image progress data, extracting specific edge features from an image of the image progress data, converting them into a numerical form through an image processing algorithm, and obtaining standardized image data.

7. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 6 is characterized in that: The data standardization unit is configured with a data standardization strategy, which includes integrating the acquired project data, safety management data, schedule planning data, construction unit schedule data, traffic flow data, meteorological data and standardized image data to obtain a multi-source data set, comparing the multi-source data set, and obtaining missing values, duplicate values ​​and erroneous data through data description and preliminary analysis; Delete duplicate values ​​and correct or delete erroneous data according to the error type and business needs; determine the cause of missing values, fill in the missing values ​​with data from the database, and set the processed multi-source data set as municipal engineering figures.

8. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 7 is characterized in that: The data management and handover module is configured with a data classification unit and a data management unit. The data classification unit is configured with a data classification strategy. The data classification strategy includes reading the municipal engineering digital data, obtaining the progress planning data, the construction unit progress data and the standardized image data of the municipal engineering, judging whether the municipal engineering is in the planned completion state at this time through the progress planning data, and when the progress planning data shows that the municipal engineering is completed, marking the municipal engineering as a planned completed municipal engineering, and when the progress planning data shows that the municipal engineering is not completed, marking the municipal engineering as a planned unfinished municipal engineering; Compare the progress data of the construction unit of the planned completed municipal engineering project with the standardized image data to determine whether the progress data of the construction unit is entered accurately. When the progress data of the construction unit is inconsistent with the standardized image data, use the standardized image data progress to correct the progress data of the planned completed municipal engineering project to obtain the corrected actual progress data. Use the corrected actual progress data to determine whether the municipal engineering project is in an actual completion state. When the corrected actual progress data shows that the municipal engineering project is completed at this time, determine that the municipal engineering project is in an actual completion state, and mark the municipal engineering project as an actually completed municipal engineering project. When the corrected actual progress data shows that the municipal project is not completed at this time, and it is determined that the municipal project is not in an actually completed state, the municipal project is marked as an actually unfinished municipal project.

9. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 8 is characterized in that: The data management unit is configured with a data transfer strategy, which includes fully transferring the municipal engineering numbers of municipal engineering projects that are actually completed, pre-transferring the municipal engineering numbers of municipal engineering projects that are actually unfinished, and storing the municipal engineering numbers of municipal engineering projects that are planned to be unfinished.

10. The municipal engineering digital handover management platform based on multi-source data fusion according to claim 9 is characterized in that: The pre-handover process includes: obtaining the progress planning data of the municipal project and the progress data of the construction unit from the municipal project data, obtaining the estimated completion time and start time of the municipal project from the progress planning data, obtaining the actual construction duration from the progress data of the construction unit, obtaining the progress duration corresponding to the progress data of the construction unit in the planning progress data, and setting it as the estimated progress duration; The difference between the estimated completion time and the start time is set as the estimated completion time, and the difference between the actual progress time and the start time is set as the actual construction time; Substitute the actual construction time, estimated completion time and estimated progress time into the completion estimate formula , the pre-handover time is obtained; where T is the pre-handover time, k is the actual construction time, s0 is the pre-completion time, and s1 is the pre-progress time; The municipal engineering project data will be handed over after the pre-handover period.

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