A method and system for regional surveying and mapping of engineering projects

Abstract

The present invention discloses a method and system for regional mapping of engineering projects, which belongs to the technical field of engineering projects. The method includes: synchronously mapping the sub-areas of the engineering project to obtain multi-source data for regional mapping of the engineering project; fusing the multi-source data for regional mapping of the engineering project to form a complete and consistent engineering project mapping result; strictly checking the mapping data of each sub-area of ​​the engineering project to form a closed-loop quality control of regional mapping of the engineering project; and monitoring and managing the mapping progress of each sub-area of ​​the engineering project in real time to complete the regional mapping of the engineering project on time. The present invention solves the problem that the existing engineering project mapping efficiency is low and the mapping effect is poor when mapping the engineering project, and the mapping demand for engineering project mapping cannot be met well. The present invention can improve the mapping efficiency and mapping effect of the engineering project, and can better meet the mapping demand of the engineering project.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering projects, and in particular to a method and system for regional mapping of engineering projects. Background Art

[0002] An engineering project is a project that uses engineering construction as a carrier. It is a one-time engineering construction task that is the object of management. Among them, engineering surveying and mapping involves surveying and investigating the air, surface, water and underground of the area where the engineering project is located, thereby providing important data support for engineering management, design and construction. It can directly reflect whether there are deviations in the construction process of the project.

[0003] Chinese patent publication number CN112966884A discloses an intelligent survey and mapping method for power engineering projects based on remote drone and sensor technology. The method collects topographic images of each pre-construction area in the power engineering project, compares and analyzes the type of topography corresponding to each pre-construction area, and detects the average wind speed in each direction in each hour of each day in each pre-construction area. The duration of time when the wind speed in each direction in each day in each pre-construction area meets the requirements is compared and counted, and the average wind speed in each direction in each hour of each day in each pre-construction area that meets the requirements is screened. The average wind speed in each direction in each hour of each day in each pre-construction area that meets the requirements is calculated. The altitude of each pre-construction area in the power engineering project is obtained, and the annual power generation efficiency estimated coefficient of each direction in each pre-construction area is calculated. The highest annual power generation efficiency estimated coefficient and the corresponding direction in each pre-construction area are compared and screened, and displayed, thereby improving the survey and mapping level of wind power engineering projects. However, the patent has the following defects:

[0004] The existing technology has low efficiency and poor results when surveying engineering projects, and cannot meet the surveying needs of engineering projects. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and system for regional mapping of engineering projects, which can improve the efficiency and effect of engineering project mapping, better meet the needs of engineering project mapping, and solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for regional surveying and mapping of an engineering project, comprising:

[0008] Conduct simultaneous mapping of sub-areas of the project to obtain multi-source mapping data for each sub-area of ​​the project;

[0009] Fuse and process multi-source data of regional surveying and mapping of engineering projects to form complete and consistent engineering project surveying and mapping results;

[0010] Strictly check the surveying and mapping data of each sub-area of ​​the project to form a closed-loop quality control of the regional surveying and mapping of the project;

[0011] Carry out real-time monitoring and management of the surveying and mapping progress of each sub-area of ​​the engineering project, so that the regional surveying and mapping of the engineering project can be completed on time.

[0012] Preferably, the sub-areas of the engineering project are surveyed and mapped simultaneously to obtain multi-source surveying and mapping data for the sub-areas of the engineering project, including:

[0013] According to the characteristics and needs of the engineering project, the engineering project area is divided into multiple sub-areas of moderate size and clear boundaries, and surveying and mapping equipment is used to simultaneously survey and map each sub-area of ​​the engineering project, and collect multi-source data for regional surveying and mapping of the engineering project.

[0014] Preferably, the multi-source data of regional surveying and mapping of the engineering project are fused to form a complete and consistent engineering project surveying and mapping result, including:

[0015] Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise in the multi-source data of regional surveying and mapping of engineering projects, and process missing values ​​and outliers;

[0016] Carry out radiometric calibration on multi-source data of regional surveying and mapping of engineering projects to eliminate response differences and correct the effects of atmospheric scattering and absorption;

[0017] Perform geometric correction on the multi-source data of regional surveying and mapping of engineering projects to eliminate errors caused by distortion and earth curvature factors, so that the multi-source data of regional surveying and mapping of engineering projects have spatial consistency.

[0018] Preferably, the multi-source data of regional surveying and mapping of engineering projects are cleaned to remove noise from the multi-source data of regional surveying and mapping of engineering projects and to process missing values ​​and outliers, including:

[0019] Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise data in the multi-source data of regional surveying and mapping of engineering projects, and reduce the noise interference in the multi-source data of regional surveying and mapping of engineering projects;

[0020] Based on data integrity, the multi-source data of regional surveying and mapping of engineering projects are checked, missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are identified, and the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are processed;

[0021] Evaluate the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects, and determine whether the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are valuable for regional surveying and mapping of engineering projects;

[0022] If the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are valuable for regional surveying and mapping of engineering projects, the missing values ​​will be filled and the outliers will be replaced;

[0023] If the missing values ​​and outliers in the multi-source data of engineering project regional mapping are of no value to the engineering project regional mapping, the missing values ​​and outliers will be deleted.

[0024] Preferably, the multi-source data of regional surveying and mapping of the engineering project are fused to form a complete and consistent engineering project surveying and mapping result, which also includes:

[0025] Extract features from multi-source data of regional surveying and mapping of engineering projects, including terrain features and boundaries of land features;

[0026] The multi-source data of regional surveying and mapping of engineering projects are spatially registered by feature matching algorithm, so that the multi-source data of regional surveying and mapping of engineering projects are aligned in spatial position;

[0027] The multi-source data of regional surveying and mapping of engineering projects are synchronized by time stamp matching method, so that the multi-source data of regional surveying and mapping of engineering projects are consistent in time dimension.

[0028] The multi-source data of regional surveying and mapping of engineering projects are fused by weighted fusion method to generate high-resolution and colorful topographic maps of engineering projects;

[0029] According to the requirements of the engineering project, the engineering project topographic map is output in a visual form to form a complete and consistent engineering project surveying and mapping results.

[0030] Preferably, the steps for fusing multi-source data are as follows:

[0031] Processing the data according to the processing method corresponding to each data to obtain the corresponding formation graph of each data;

[0032] Perform unit analysis on the formed graph and associate the segmented units to form a main association group;

[0033] Associate the middle unit in the same formation graph with the surrounding units to form a secondary association group;

[0034] Cascade the primary association group and the secondary association group;

[0035] Analyze the data sources of each unit in the primary association group and the differences between the units in the secondary association group to determine the weight coefficient of each unit;

[0036] Based on the weight coefficient and the value of each unit, the corresponding unit on the fused engineering project topographic map is determined;

[0037] The data sources of each unit in the primary association group and the differences between the units in the secondary association group are analyzed to determine the weight coefficient of each unit, including:

[0038] The middle unit of the secondary association group is used as the identification unit, and the other units are used as reference units;

[0039] A data array is formed using the source code corresponding to the data source and the difference values ​​between each reference unit and the identification unit, and a pre-configured weight coefficient determination library is queried to obtain a weight coefficient array.

[0040] Preferably, the method for regional surveying and mapping of an engineering project further includes:

[0041] Based on the construction data within the sub-areas of the project, a prediction map corresponding to the project topographic map is constructed;

[0042] Modify the fused topographic map of the engineering project based on the prediction map;

[0043] The correction steps are as follows:

[0044] Divide the prediction map according to the division rules of each unit of the project topographic map to obtain reference units;

[0045] When the difference between the reference unit and the corresponding unit on the project topographic map exceeds a preset threshold, the unit is corrected based on the difference between the previous N prediction maps and the project topographic map;

[0046] Among them, the prediction graph is constructed by inputting the construction data into the corresponding pre-trained neural network model and based on the output of the neural network model;

[0047] The specific manifestation of the correction is to correct the pixel values ​​in the image corresponding to the engineering project topographic map.

[0048] Preferably, the surveying and mapping data of each sub-area of ​​the project are rigorously checked to form a closed-loop quality control system for the surveying and mapping of each sub-area of ​​the project, including:

[0049] Based on the accuracy and reliability requirements of the regional surveying and mapping results of the engineering project, pre-set the regional surveying and mapping standard data of the engineering project;

[0050] Compare and analyze the multi-source data of engineering project regional surveying and mapping based on the pre-set engineering project regional surveying and mapping standard data, strictly check the differences between the multi-source data of engineering project regional surveying and mapping and the engineering project regional surveying and mapping standard data, and determine the deviations in the multi-source data of engineering project regional surveying and mapping;

[0051] When the multi-source data of engineering project regional surveying and mapping matches the standard data of engineering project regional surveying and mapping, there is no difference between the multi-source data of engineering project regional surveying and mapping and the standard data of engineering project regional surveying and mapping;

[0052] When the engineering project sub-regional surveying and mapping multi-source data does not match the engineering project sub-regional surveying and mapping standard data, there is a difference between the engineering project sub-regional surveying and mapping multi-source data and the engineering project sub-regional surveying and mapping standard data, and the deviation in the engineering project sub-regional surveying and mapping multi-source data is found;

[0053] According to the deviations in the multi-source data of regional surveying and mapping of engineering projects, the multi-source data of regional surveying and mapping of engineering projects are corrected and adjusted, and the quality of the corrected and adjusted multi-source data of regional surveying and mapping of engineering projects is monitored in real time. The multi-source data of regional surveying and mapping of engineering projects is optimized based on the feedback of the quality monitoring, forming a closed-loop control of the quality of the multi-source data of regional surveying and mapping of engineering projects.

[0054] Preferably, the progress of surveying and mapping of each sub-area of ​​the project is monitored and managed in real time to ensure that the sub-area surveying and mapping of the project is completed on time, including:

[0055] Monitor the surveying and mapping progress of each sub-area of ​​the project in real time and obtain surveying and mapping progress data of each sub-area of ​​the project;

[0056] According to the pre-set surveying and mapping progress standards for each sub-area of ​​the project, comparative analysis is conducted on the surveying and mapping progress data of each sub-area of ​​the project to determine whether the current surveying and mapping progress of each sub-area of ​​the project lags behind the pre-set surveying and mapping progress;

[0057] When the surveying and mapping progress of each sub-area of ​​the current engineering project lags behind the pre-set surveying and mapping progress, the surveying and mapping progress of each sub-area of ​​the current engineering project is optimized and managed so that all parties involved in the regional surveying of the engineering project can work together and complete the regional surveying of the engineering project on time.

[0058] According to another aspect of the present invention, a system for regional mapping of engineering projects is provided, which is used to implement the above-mentioned method for regional mapping of engineering projects, including:

[0059] The sub-region synchronous mapping module is used to use mapping equipment to synchronously map each sub-region of the project and collect multi-source data for sub-region mapping of the project;

[0060] The data fusion processing module is used to fuse and process multi-source data of regional surveying and mapping of engineering projects to form complete and consistent engineering project surveying and mapping results;

[0061] The surveying and mapping quality control module is used to strictly check the quality of the surveying and mapping data of each sub-area of ​​the project, forming a closed-loop quality control of the surveying and mapping of each sub-area of ​​the project;

[0062] The surveying and mapping progress monitoring and management module is used to monitor and manage the surveying and mapping progress of each sub-area of ​​the engineering project in real time, so that the regional surveying and mapping of the engineering project can be completed on time.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] The present invention divides the project area into multiple sub-areas with moderate sizes and clear boundaries according to the characteristics and needs of the engineering project, and uses surveying and mapping equipment to synchronously survey and map each sub-area of ​​the engineering project, obtains multi-source data of regional surveying and mapping of the engineering project, and forms a complete and consistent engineering project surveying and mapping result by fusing and processing the multi-source data of regional surveying and mapping of the engineering project. By strictly checking the surveying and mapping data of each sub-area of ​​the engineering project, a closed-loop quality control of regional surveying and mapping of the engineering project is formed to ensure the accuracy and reliability of the engineering project surveying and mapping result. By real-time monitoring and management of the surveying and mapping progress of each sub-area of ​​the engineering project, the regional surveying and mapping of the engineering project can be completed on time, the surveying and mapping efficiency and effect of the engineering project can be improved, and the surveying and mapping needs of the engineering project can be better met. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is a module diagram of the engineering project regional mapping system of the present invention;

[0066] Figure 2 The figure is a flow chart of the method for regional surveying and mapping of engineering projects according to the present invention. DETAILED DESCRIPTION

[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0068] In order to solve the existing problems of low efficiency and poor results in surveying and mapping of engineering projects, which cannot meet the surveying and mapping needs of engineering projects, please refer to Figure 1-Figure 2 , this embodiment provides the following technical solutions:

[0069] A regional surveying and mapping system for engineering projects includes: a regional synchronous surveying and mapping module, a data fusion processing module, a surveying and mapping quality control module, and a surveying and mapping progress monitoring and management module.

[0070] Among them, the regional synchronous surveying and mapping module is used to use surveying and mapping equipment to synchronously survey and map each sub-area of ​​the engineering project, and collect multi-source data for regional surveying and mapping of the engineering project; the data fusion processing module is used to fuse and process the multi-source data for regional surveying and mapping of the engineering project to form complete and consistent engineering project surveying and mapping results; the surveying and mapping quality control module is used to strictly check the quality of the surveying and mapping data of each sub-area of ​​the engineering project, and form a closed-loop quality control of the regional surveying and mapping of the engineering project; the surveying and mapping progress monitoring and management module is used to monitor and manage the surveying and mapping progress of each sub-area of ​​the engineering project in real time, so that the regional surveying and mapping of the engineering project can be completed on time.

[0071] Specifically, through interactive communication between the regional synchronous surveying and mapping module, the data fusion processing module, the surveying and mapping quality control module and the surveying and mapping progress monitoring and management module, the surveying and mapping efficiency and results of engineering projects can be improved, which can better meet the surveying and mapping needs of engineering projects.

[0072] To better demonstrate the process of regional surveying and mapping of engineering projects, this embodiment provides a regional surveying and mapping method for engineering projects, which is based on the aforementioned regional surveying and mapping system for engineering projects and includes:

[0073] Conduct simultaneous surveying and mapping of sub-areas of the project to obtain multi-source surveying and mapping data for each sub-area of ​​the project.

[0074] In this embodiment, the sub-areas of the engineering project are simultaneously surveyed and mapped to obtain multi-source data for the sub-areas of the engineering project, including:

[0075] According to the characteristics and needs of the engineering project, the engineering project area is divided into multiple sub-areas of moderate size and clear boundaries, and surveying and mapping equipment is used to simultaneously survey and map each sub-area of ​​the engineering project, and collect multi-source data for regional surveying and mapping of the engineering project.

[0076] The multi-source data of regional surveying and mapping of engineering projects are integrated and processed to form complete and consistent engineering project surveying and mapping results.

[0077] In this embodiment, multi-source data of regional surveying and mapping of engineering projects are fused to form complete and consistent engineering project surveying and mapping results, including:

[0078] Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise in the multi-source data of regional surveying and mapping of engineering projects, and process missing values ​​and outliers;

[0079] Carry out radiometric calibration on multi-source data of regional surveying and mapping of engineering projects to eliminate response differences and correct the effects of atmospheric scattering and absorption;

[0080] Perform geometric correction on the multi-source data of regional surveying and mapping of engineering projects to eliminate errors caused by distortion and earth curvature factors, so that the multi-source data of regional surveying and mapping of engineering projects have spatial consistency.

[0081] In this embodiment, the multi-source data of regional surveying and mapping of engineering projects are cleaned to remove noise and process missing values ​​and outliers, including:

[0082] Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise data in the multi-source data of regional surveying and mapping of engineering projects, and reduce the noise interference in the multi-source data of regional surveying and mapping of engineering projects;

[0083] Based on data integrity, the multi-source data of regional surveying and mapping of engineering projects are checked, missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are identified, and the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are processed;

[0084] Evaluate the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects, and determine whether the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are valuable for regional surveying and mapping of engineering projects;

[0085] If the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are valuable for regional surveying and mapping of engineering projects, the missing values ​​will be filled and the outliers will be replaced;

[0086] If the missing values ​​and outliers in the multi-source data of engineering project regional mapping are of no value to the engineering project regional mapping, the missing values ​​and outliers will be deleted.

[0087] In this embodiment, the multi-source data of regional surveying and mapping of the engineering project are fused to form a complete and consistent engineering project surveying and mapping result, which also includes:

[0088] Extract features from multi-source data of regional surveying and mapping of engineering projects, including terrain features and boundaries of land features;

[0089] The multi-source data of regional surveying and mapping of engineering projects are spatially registered by feature matching algorithm, so that the multi-source data of regional surveying and mapping of engineering projects are aligned in spatial position;

[0090] The multi-source data of regional surveying and mapping of engineering projects are synchronized by time stamp matching method, so that the multi-source data of regional surveying and mapping of engineering projects are consistent in time dimension.

[0091] The multi-source data of regional surveying and mapping of engineering projects are fused by weighted fusion method to generate high-resolution and colorful topographic maps of engineering projects;

[0092] According to the requirements of the engineering project, the engineering project topographic map is output in a visual form to form a complete and consistent engineering project surveying and mapping results.

[0093] In one embodiment, the steps for fusing multi-source data are as follows:

[0094] Processing the data according to the processing method corresponding to each data to obtain a formation map corresponding to each data; wherein the formation map is a topographic map obtained by processing the multi-source data separately;

[0095] Perform unit analysis on the formed image and associate the segmented units to form a main association group. The segmentation can be performed in an equal proportion manner or by segmenting the boundaries of different components according to the final rendering of the project. This ensures that the pixel values ​​of the pixels in the segmented units are the same. The ideal state of segmentation is pixel-level segmentation, that is, each segmented unit corresponds to one pixel.

[0096] Associate the middle unit in the same formation graph with the surrounding units to form a secondary association group;

[0097] Cascade the primary association group and the secondary association group;

[0098] Analyze the data sources of each unit in the primary association group and the differences between the units in the secondary association group to determine the weight coefficient of each unit;

[0099] Based on the weight coefficient and the value of each unit, the corresponding unit on the fused project topographic map is determined; the calculation formula is as follows:

[0100] ;

[0101] Where, represents the pixel value of the fused unit, The first The pixel value of each unit; The first The weight coefficient of each unit; is the number of units in the primary association group;

[0102] The data sources of each unit in the primary association group and the differences between the units in the secondary association group are analyzed to determine the weight coefficient of each unit, including:

[0103] The middle unit of the secondary association group is used as the identification unit, and the other units are used as reference units;

[0104] The data source is mapped to the source code, and the difference between each reference unit and the identified unit is used to form a data array. The pre-configured weight coefficient determination library is then queried to obtain a weight coefficient array. The indirect confirmation of the unit by the surrounding units is taken into account in the weight coefficient, further improving the accuracy of the weight coefficient determination.

[0105] In order to further improve the accuracy of topographic map construction, in one embodiment, the method for regional surveying and mapping of an engineering project further includes:

[0106] Based on the construction data within the sub-areas of the project, a prediction map corresponding to the project topographic map is constructed; the prediction map can be constructed based on the output of the neural network model by inputting the construction data into the corresponding pre-trained neural network model;

[0107] Modify the fused topographic map of the engineering project based on the prediction map;

[0108] The correction steps are as follows:

[0109] Divide the prediction map according to the division rules of each unit of the project topographic map to obtain reference units;

[0110] When the difference between the reference unit and the corresponding unit on the project topographic map exceeds a preset threshold, the unit is corrected based on the difference between the previous N prediction maps and the project topographic map. The correction is specifically performed by correcting the pixel value in the image. The specific correction formula is as follows:

[0111] ;

[0112] Where, is the pixel value of the corrected unit; is the pixel value of the unit on the prediction map; is the pixel value of the unit before correction; is the pixel value of the unit on the previous j prediction images; is the pixel value of the unit before j corrections; For the prediction graph The pixel value of the associated unit; For the topographic map The pixel value of the associated unit; 、 It is a pre-configured weight coefficient. When making corrections, the error of the unit after the formation of the topographic map is comprehensively analyzed, and the errors of the units around the unit are analyzed and corrected to ensure the accuracy and effectiveness of the correction.

[0113] The surveying and mapping data of each sub-area of ​​the engineering project are strictly checked to form a closed-loop quality control of the regional surveying and mapping of the engineering project.

[0114] In this embodiment, the surveying and mapping data of each sub-area of ​​the project are strictly checked to form a closed-loop quality control of the regional surveying and mapping of the project, including:

[0115] Based on the accuracy and reliability requirements of the regional surveying and mapping results of the engineering project, pre-set the regional surveying and mapping standard data of the engineering project;

[0116] Compare and analyze the multi-source data of engineering project regional surveying and mapping based on the pre-set engineering project regional surveying and mapping standard data, strictly check the differences between the multi-source data of engineering project regional surveying and mapping and the engineering project regional surveying and mapping standard data, and determine the deviations in the multi-source data of engineering project regional surveying and mapping;

[0117] When the multi-source data of engineering project regional surveying and mapping matches the standard data of engineering project regional surveying and mapping, there is no difference between the multi-source data of engineering project regional surveying and mapping and the standard data of engineering project regional surveying and mapping;

[0118] When the engineering project sub-regional surveying and mapping multi-source data does not match the engineering project sub-regional surveying and mapping standard data, there is a difference between the engineering project sub-regional surveying and mapping multi-source data and the engineering project sub-regional surveying and mapping standard data, and the deviation in the engineering project sub-regional surveying and mapping multi-source data is found;

[0119] According to the deviations in the multi-source data of regional surveying and mapping of engineering projects, the multi-source data of regional surveying and mapping of engineering projects are corrected and adjusted, and the quality of the corrected and adjusted multi-source data of regional surveying and mapping of engineering projects is monitored in real time. The multi-source data of regional surveying and mapping of engineering projects is optimized based on the feedback of the quality monitoring, forming a closed-loop control of the quality of the multi-source data of regional surveying and mapping of engineering projects.

[0120] Specifically, by strictly checking the surveying and mapping data of each sub-area of ​​the engineering project, a closed-loop quality control system for the regional surveying and mapping of the engineering project is formed to ensure the accuracy and reliability of the surveying and mapping results of the engineering project.

[0121] Carry out real-time monitoring and management of the surveying and mapping progress of each sub-area of ​​the engineering project, so that the regional surveying and mapping of the engineering project can be completed on time.

[0122] In this embodiment, the progress of surveying and mapping of each sub-area of ​​the project is monitored and managed in real time to ensure that the sub-area surveying and mapping of the project is completed on time, including:

[0123] Monitor the surveying and mapping progress of each sub-area of ​​the project in real time and obtain surveying and mapping progress data of each sub-area of ​​the project;

[0124] According to the pre-set surveying and mapping progress standards for each sub-area of ​​the project, comparative analysis is conducted on the surveying and mapping progress data of each sub-area of ​​the project to determine whether the current surveying and mapping progress of each sub-area of ​​the project lags behind the pre-set surveying and mapping progress;

[0125] When the surveying and mapping progress of each sub-area of ​​the current engineering project lags behind the pre-set surveying and mapping progress, the surveying and mapping progress of each sub-area of ​​the current engineering project is optimized and managed so that all parties involved in the regional surveying of the engineering project can work together and complete the regional surveying of the engineering project on time.

[0126] Specifically, by real-time monitoring and management of the surveying and mapping progress of each sub-area of ​​the engineering project, the regional surveying and mapping of the engineering project can be completed on time.

[0127] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0128] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for regional surveying and mapping of an engineering project, characterized in that: include: Conduct simultaneous mapping of sub-areas of the project to obtain multi-source mapping data for each sub-area of ​​the project; Fuse and process multi-source data of regional surveying and mapping of engineering projects to form complete and consistent engineering project surveying and mapping results; Strictly check the surveying and mapping data of each sub-area of ​​the project to form a closed-loop quality control of the regional surveying and mapping of the project; Monitor and manage the surveying and mapping progress of each sub-area of ​​the project in real time to ensure that the sub-area surveying and mapping of the project is completed on time; The steps for fusing multi-source data are as follows: Processing the data according to the processing method corresponding to each data to obtain the corresponding formation graph of each data; Perform unit analysis on the formed graph and associate the segmented units to form a main association group; Associate the middle unit in the same formation graph with the surrounding units to form a secondary association group; Cascade the primary association group and the secondary association group; Analyze the data sources of each unit in the primary association group and the differences between the units in the secondary association group to determine the weight coefficient of each unit; Based on the weight coefficient and the value of each unit, the corresponding unit on the fused engineering project topographic map is determined; The data sources of each unit in the primary association group and the differences between the units in the secondary association group are analyzed to determine the weight coefficient of each unit, including: The middle unit of the secondary association group is used as the identification unit, and the other units are used as reference units; A data array is formed using the source code corresponding to the data source and the difference values ​​between each reference unit and the identification unit, and a pre-configured weight coefficient determination library is queried to obtain a weight coefficient array.

2. A method for regional surveying and mapping of an engineering project according to claim 1, characterized in that: Conduct simultaneous mapping of sub-areas of the project and obtain multi-source mapping data for each sub-area of ​​the project, including: According to the characteristics and needs of the engineering project, the engineering project area is divided into multiple sub-areas of moderate size and clear boundaries, and surveying and mapping equipment is used to simultaneously survey and map each sub-area of ​​the engineering project, and collect multi-source data for regional surveying and mapping of the engineering project.

3. The method for regional surveying and mapping of an engineering project according to claim 1, wherein: The multi-source data of regional surveying and mapping of engineering projects are integrated and processed to form complete and consistent engineering project surveying and mapping results, including: Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise in the multi-source data of regional surveying and mapping of engineering projects, and process missing values ​​and outliers; Carry out radiometric calibration on multi-source data of regional surveying and mapping of engineering projects to eliminate response differences and correct the effects of atmospheric scattering and absorption; Perform geometric correction on the multi-source data of regional surveying and mapping of engineering projects to eliminate errors caused by distortion and earth curvature factors, so that the multi-source data of regional surveying and mapping of engineering projects have spatial consistency.

4. A method for regional surveying and mapping of an engineering project according to claim 3, characterized in that: Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise in the multi-source data of regional surveying and mapping of engineering projects, and process missing values ​​and outliers, including: Clean the multi-source data of regional surveying and mapping of engineering projects, remove the noise data in the multi-source data of regional surveying and mapping of engineering projects, and reduce the noise interference in the multi-source data of regional surveying and mapping of engineering projects; Based on data integrity, the multi-source data of regional surveying and mapping of engineering projects are checked, missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are identified, and the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are processed; Evaluate the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects, and determine whether the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are valuable for regional surveying and mapping of engineering projects; If the missing values ​​and outliers in the multi-source data of regional surveying and mapping of engineering projects are valuable for regional surveying and mapping of engineering projects, the missing values ​​will be filled and the outliers will be replaced; If the missing values ​​and outliers in the multi-source data of engineering project regional mapping are of no value to the engineering project regional mapping, the missing values ​​and outliers will be deleted.

5. A method for regional surveying and mapping of an engineering project according to claim 4, characterized in that: The multi-source data of regional surveying and mapping of engineering projects are integrated and processed to form complete and consistent engineering project surveying and mapping results, including: Extract features from multi-source data of regional surveying and mapping of engineering projects, including terrain features and boundaries of land features; The multi-source data of regional surveying and mapping of engineering projects are spatially registered by feature matching algorithm, so that the multi-source data of regional surveying and mapping of engineering projects are aligned in spatial position; The multi-source data of regional surveying and mapping of engineering projects are synchronized by time stamp matching method, so that the multi-source data of regional surveying and mapping of engineering projects are consistent in time dimension. The multi-source data of regional surveying and mapping of engineering projects are fused by weighted fusion method to generate high-resolution and colorful topographic maps of engineering projects; According to the requirements of the engineering project, the engineering project topographic map is output in a visual form to form a complete and consistent engineering project surveying and mapping results.

6. A method for regional surveying and mapping of an engineering project according to claim 5, characterized in that: Also includes: Based on the construction data within the sub-areas of the project, a prediction map corresponding to the project topographic map is constructed; Modify the fused topographic map of the engineering project based on the prediction map; The correction steps are as follows: Divide the prediction map according to the division rules of each unit of the project topographic map to obtain reference units; When the difference between the reference unit and the corresponding unit on the project topographic map exceeds a preset threshold, the unit is corrected based on the difference between the previous N prediction maps and the project topographic map; Among them, the prediction graph is constructed by inputting the construction data into the corresponding pre-trained neural network model and based on the output of the neural network model; The specific manifestation of the correction is to correct the pixel values ​​in the image corresponding to the engineering project topographic map.

7. The method for regional surveying and mapping of an engineering project according to claim 1, wherein: Strictly check the surveying and mapping data of each sub-area of ​​the project to form a closed-loop quality control of the surveying and mapping of the sub-areas of the project, including: Based on the accuracy and reliability requirements of the regional surveying and mapping results of the engineering project, pre-set the regional surveying and mapping standard data of the engineering project; Compare and analyze the multi-source data of engineering project regional surveying and mapping based on the pre-set engineering project regional surveying and mapping standard data, strictly check the differences between the multi-source data of engineering project regional surveying and mapping and the engineering project regional surveying and mapping standard data, and determine the deviations in the multi-source data of engineering project regional surveying and mapping; When the multi-source data of engineering project regional surveying and mapping matches the standard data of engineering project regional surveying and mapping, there is no difference between the multi-source data of engineering project regional surveying and mapping and the standard data of engineering project regional surveying and mapping; When the engineering project sub-regional surveying and mapping multi-source data does not match the engineering project sub-regional surveying and mapping standard data, there is a difference between the engineering project sub-regional surveying and mapping multi-source data and the engineering project sub-regional surveying and mapping standard data, and the deviation in the engineering project sub-regional surveying and mapping multi-source data is found; According to the deviations in the multi-source data of regional surveying and mapping of engineering projects, the multi-source data of regional surveying and mapping of engineering projects are corrected and adjusted, and the quality of the corrected and adjusted multi-source data of regional surveying and mapping of engineering projects is monitored in real time. The multi-source data of regional surveying and mapping of engineering projects is optimized based on the feedback of the quality monitoring, forming a closed-loop control of the quality of the multi-source data of regional surveying and mapping of engineering projects.

8. The method for regional surveying and mapping of an engineering project according to claim 1, wherein: Real-time monitoring and management of the surveying and mapping progress of each sub-area of ​​the project to ensure that the sub-area surveying and mapping of the project is completed on time, including: Monitor the surveying and mapping progress of each sub-area of ​​the project in real time and obtain surveying and mapping progress data of each sub-area of ​​the project; According to the pre-set surveying and mapping progress standards for each sub-area of ​​the project, comparative analysis is conducted on the surveying and mapping progress data of each sub-area of ​​the project to determine whether the current surveying and mapping progress of each sub-area of ​​the project lags behind the pre-set surveying and mapping progress; When the surveying and mapping progress of each sub-area of ​​the current engineering project lags behind the pre-set surveying and mapping progress, the surveying and mapping progress of each sub-area of ​​the current engineering project is optimized and managed so that all parties involved in the regional surveying of the engineering project can work together and complete the regional surveying of the engineering project on time.

9. A system for regional mapping of engineering projects, used to implement a method for regional mapping of engineering projects as claimed in any one of claims 1 to 8, characterized in that: include: The sub-region synchronous mapping module is used to use mapping equipment to synchronously map each sub-region of the project and collect multi-source data for sub-region mapping of the project; The data fusion processing module is used to fuse and process multi-source data of regional surveying and mapping of engineering projects to form complete and consistent engineering project surveying and mapping results; The surveying and mapping quality control module is used to strictly check the quality of the surveying and mapping data of each sub-area of ​​the project, forming a closed-loop quality control of the surveying and mapping of each sub-area of ​​the project; The surveying and mapping progress monitoring and management module is used to monitor and manage the surveying and mapping progress of each sub-area of ​​the engineering project in real time, so that the regional surveying and mapping of the engineering project can be completed on time.

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