Underground cable construction precise disclosure method based on high-precision positioning equipment

Abstract

The invention relates to the technical field of underground cable construction, in particular to an underground cable construction precise disclosure method based on high-precision positioning equipment, and the method comprises the steps: deploying the high-precision positioning equipment at a construction site, collecting the positioning data, environment data and underground facility data of an underground cable in real time, and carrying out the data preprocessing and integration; through comparison with a design drawing, potential deviation is corrected, a cable three-dimensional path model is constructed, and accurate cable path disclosure information is provided for a construction team; according to the invention, the relation between the burying position, direction and depth of the cable and the surrounding environment can be effectively identified, the potential construction risk information is provided, and the accuracy and safety in the construction process are ensured. Besides, through intelligent data fusion and decision support, the construction team can adjust the construction scheme in real time, conflicts with other underground facilities are avoided, and the construction quality and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground cable construction, and in particular to a precise disclosure method for underground cable construction based on high-precision positioning equipment. Background Art

[0002] As an important power and communication transmission facility, underground cables are widely used in cities, industrial areas, transportation networks and other fields. The laying of underground cables requires extremely high construction accuracy to ensure its long-term stable operation and convenience of subsequent maintenance.

[0003] At present, although high-precision positioning technology, sensor technology and data processing technology have been applied in underground cable construction, high-precision equipment such as GPS, differential GPS and inertial measurement units can provide data on cable location, depth and direction. At the same time, environmental information and underground facility data can also be collected, but there are still many problems with existing technologies. First, in terms of data processing and fusion, existing technologies lack efficient integration of multi-source data and cannot capture the deviation between the cable and the design drawings in real time during the construction process, resulting in construction personnel being unable to adjust the burial path and depth in time. Secondly, although some technologies provide precise positioning, most of them lack intelligent feedback and decision support systems, and cannot dynamically optimize the construction process based on real-time data. Construction often faces challenges such as conflicts with other underground facilities and safety hazards. Existing technologies have failed to effectively solve these problems, resulting in increased risks in the construction process and insufficient construction accuracy and safety. Summary of the invention

[0004] The invention provides a precise disclosure method for underground cable construction based on high-precision positioning equipment.

[0005] A method for accurate disclosure of underground cable construction based on high-precision positioning equipment, comprising the following steps: S1, on-site investigation and data collection: deploy high-precision positioning equipment at the underground cable construction site to collect multi-source data related to underground cables, including positioning data, environmental data and underground facility data; The positioning data includes the location (latitude and longitude coordinates), burial depth and direction of the cable; The environmental data refers to the environmental information around the cable path, including ground buildings, roads and soil characteristics; The underground facility data refers to other underground facilities intersecting or adjacent to the underground cable path, including water pipelines and power pipelines; S2, data preprocessing: preprocessing the collected multi-source data, including data cleaning, missing value filling and outlier processing; S3, cable path and design drawing comparison: compare the pre-processed positioning data with the underground cable line design drawings to analyze and correct potential deviations; S4, data fusion and model building: data fusion algorithm is used to integrate positioning data, environmental data and underground facility data, and 3D modeling technology is used to build a 3D path model of the cable to show the actual buried location and direction of the cable and its relationship with the surrounding environment and underground facilities; S5, accurate briefing and decision support: Based on the constructed 3D path model, accurate cable path briefing information is provided to the construction team, including detailed cable path, burial depth, surrounding environment and potential construction risks.

[0006] Optionally, the S1 includes: S11, positioning equipment: according to the specific needs of the underground cable construction site, select high-precision positioning equipment, including GPS, differential GPS and total station; S12, deploy high-precision positioning equipment: deploy the selected high-precision positioning equipment at key locations on the underground cable construction site; S13, real-time collection of cable positioning data: At the construction site, high-precision positioning equipment is deployed to collect cable location information in real time, including the cable's latitude and longitude coordinates, buried depth and direction; S14, collecting environmental data: using environmental monitoring equipment to collect environmental data; S15, collecting underground facility data: using underground facility detection equipment (such as underground pipeline detectors, geological radar, etc.) to collect underground facility data near the cable path; S16, synchronous data storage and transmission: synchronously upload the collected positioning data, environmental data and underground facility data to the data storage platform in real time.

[0007] Optionally, S2 includes: S21, data cleaning: preliminary cleaning of the collected multi-source data to remove invalid or duplicate data points; S22, missing value filling: missing values ​​caused by equipment failure or environmental factors during data collection are supplemented by filling methods; S23, outlier detection and processing: detect and correct possible outliers in the data to ensure the rationality of the data; S24: Data standardization and normalization: standardize the preprocessed data; S25: Data storage and backup: Store the data after data cleaning, missing value filling and outlier processing, and perform multiple backups to prevent data loss.

[0008] Optionally, the S3 includes: S31, preliminary comparison: preliminary comparison of the pre-processed positioning data with the underground cable line design drawings, and preliminary identification of potential deviation areas by calculating the differences in spatial position, depth and direction between the two.

[0009] S32, calculating the deviation value and performing deviation analysis: based on the preliminary comparison, using the error analysis method to calculate the deviation value between the actual position of the cable path and the design drawing; S33, correction and revision of deviation value: performing correction processing on the calculated deviation value; S34, Corrected comparison and consistency confirmation: The corrected cable path is compared with the design drawings again to confirm the consistency between the corrected path, depth and direction and the design drawings.

[0010] Optionally, S5 further includes: S35, further analysis and investigation of abnormal deviations: for large deviations found during the comparison process, further abnormal analysis and investigation are performed; S36, cross-departmental collaboration and data feedback: Feedback the comparison results and deviation analysis to the construction management team, design engineers and quality supervisors to conduct cross-departmental collaboration and discuss how to correct potential problems in the design drawings or adjust the construction plan; S37, Correction plan evaluation and implementation: For areas with large deviations, propose correction plans based on the deviation analysis results and evaluate the plans; S38, briefing on the revised path: After the revised cable path, depth and direction are confirmed, they will be provided to the construction team for briefing.

[0011] Optionally, the S4 includes: S41, data fusion algorithm application: after the collected positioning data, environmental data and underground facility data are pre-processed, they are fused using the weighted average method; S42, evaluation and optimization of data fusion results: input the fused data into the Kalman filter algorithm for optimization processing; S43, quality check and correction of fused data: perform quality check on the fused data to check the completeness and accuracy of the data.

[0012] Optionally, S4 further includes: S44, application of 3D modeling algorithm: based on the fused data, a 3D model of the cable path is constructed using the B-spline curve fitting algorithm; S45, 3D model construction and environmental integration: Use AutoCAD for 3D modeling and integrate it with environmental data to build a 3D path model of the cable; S46, Optimization and verification of the three-dimensional path model: Optimize the constructed three-dimensional path model to ensure that the three-dimensional path model meets the construction requirements.

[0013] Optionally, the S5 includes: S51, generating disclosure information: generating detailed cable path disclosure information according to the constructed three-dimensional path model; S52, visualization of the information disclosure: displaying the generated information disclosure in a graphical manner; S53: Accuracy verification of the information disclosed: perform accuracy verification on the information disclosed.

[0014] Optionally, S5 further includes: S54, construction risk assessment: conduct construction risk assessment based on the generated briefing information; S55: Construction decision support: Combine risk assessment results with cable path briefing information to provide decision support for the construction team.

[0015] Beneficial effects of the present invention: The present invention realizes accurate exploration and data collection of underground cable paths through the application of high-precision positioning equipment. The high consistency between the cable path and the design drawings is ensured by detailed collection and processing of the actual position, burial depth, direction and surrounding environment of the cable. Data preprocessing techniques such as missing value filling and outlier processing are used to effectively eliminate data deviations and errors. This process greatly reduces the path deviation that may occur in the traditional construction process, significantly improves the construction accuracy, and reduces the later maintenance costs that may be caused during construction.

[0016] The present invention, by comparing the collected multi-source data with the design drawings and using a data fusion algorithm to construct a three-dimensional cable path model, can provide the construction team with accurate cable path disclosure information and fully display the cable's buried depth, direction, and surrounding environment. On this basis, the construction team can accurately grasp the actual location of underground cables and avoid potential construction obstacles and risks in advance, such as intersections with other underground facilities and the impact of soil types. Through construction risk assessment and decision support mechanisms, the construction team can dynamically adjust construction strategies, select the most appropriate path and depth, optimize construction plans, avoid unnecessary rework and delays, and ensure the safety and efficiency of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a method flow of an embodiment of the present invention; Figure 2 Schematic diagram of S4 process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0020] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0021] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0022] like Figure 1-Figure 2 As shown, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment includes the following steps: S1, on-site investigation and data collection: deploy high-precision positioning equipment at the underground cable construction site to collect multi-source data related to underground cables, including positioning data, environmental data and underground facility data; Positioning data includes the location (latitude and longitude coordinates), burial depth and direction of the cable; Environmental data refers to the environmental information around the cable path, including ground buildings, roads and soil characteristics; Underground utility data refers to other underground facilities that intersect or are adjacent to underground cable routes, including water and power lines; S2, data preprocessing: preprocessing the collected multi-source data, including data cleaning, missing value filling and outlier processing; S3, comparison of cable path with design drawings: compare the pre-processed positioning data with the design drawings of underground cable lines, analyze and correct potential deviations, and ensure the consistency between the actual buried path, depth and direction of the cable and the design drawings; S4, data fusion and model building: data fusion algorithm is used to integrate positioning data, environmental data and underground facility data, and 3D modeling technology is used to build a 3D path model of the cable to show the actual buried location and direction of the cable and its relationship with the surrounding environment and underground facilities; S5, accurate briefing and decision support: Based on the constructed 3D path model, accurate cable path briefing information is provided to the construction team, including detailed cable path, burial depth, surrounding environment and potential construction risks, to ensure the accuracy and safety of the construction process.

[0023] S1 includes: S11, Positioning equipment: According to the specific needs of the underground cable construction site, high-precision positioning equipment is selected, including GPS, differential GPS and total station. When selecting, a comprehensive evaluation is conducted based on the required accuracy requirements, construction environment, equipment adaptability and subsequent data processing needs; S12, deploy high-precision positioning equipment: Deploy the selected high-precision positioning equipment at key locations on the underground cable construction site. The equipment should be laid out to cover the entire construction path of the cable and ensure that the cable positioning data can be collected in real time. When deploying, consider the appropriate spacing between devices to ensure positioning coverage without blind spots. S13, real-time collection of cable positioning data: At the construction site, use the deployed high-precision positioning equipment to collect the location information of the cable in real time, including the longitude and latitude coordinates, burial depth and direction of the cable. The positioning equipment should monitor and record the actual burial path and depth of the cable in real time to ensure the high precision and accuracy of the data; S14, Collect environmental data: Use environmental monitoring equipment (such as environmental sensors, drones, ground sensors, etc.) to collect environmental data. The collection of environmental data helps to understand the geographical environment characteristics of the cable path, which plays an important role in risk management and subsequent decision-making during the construction process; S15, Collect underground facility data: Use underground facility detection equipment (such as underground pipeline detectors, geological radar, etc.) to collect underground facility data near the cable path. The underground facility data includes information on other underground facilities that intersect or are adjacent to the cable path, such as water pipelines, power pipelines, natural gas pipelines, etc. Accurate underground facility data collection can avoid conflicts with existing facilities during construction and ensure construction safety; S16, synchronous data storage and transmission: The collected positioning data, environmental data and underground facility data shall be synchronously uploaded to the data storage platform in real time. The data shall be transmitted in an encrypted manner and backed up to ensure the integrity and security of the data for subsequent analysis and processing.

[0024] S2 includes: S21, data cleaning: preliminary cleaning of the collected multi-source data to remove invalid or duplicate data points. The data cleaning process includes the following aspects: De-duplicate data: Check the unique identifier of each data point (such as timestamp, device ID, etc.) and remove duplicate records to ensure that each data point appears only once in the data set.

[0025] Removing invalid data: Identify and remove invalid data caused by equipment failure, signal interference or human error. For example, in cable positioning data, if the data points at certain locations do not meet the expected range (such as abnormal deviations in longitude and latitude), they are marked as invalid data and deleted.

[0026] Remove null data: Check whether there are null or missing values ​​in the dataset. If some data is missing (such as missing soil moisture in environmental data), further processing is performed.

[0027] S22, missing value filling: For missing values ​​caused by equipment failure or environmental factors during data collection, fill in the missing values ​​using the following methods: Interpolation: For continuous variables (such as cable depth or soil moisture), linear interpolation or polynomial interpolation is used to predict missing values ​​based on the existing data points.

[0028] Nearest neighbor filling method: For discrete data (such as building information in environmental data), the nearest neighbor filling method is used to fill missing values ​​with the nearest valid data value.

[0029] Mean imputation method: When some missing data do not affect the overall trend, the mean of the variable is used to fill the missing data.

[0030] S23, outlier detection and processing: detect and correct possible outliers in the data to ensure the rationality of the data. The outlier detection process includes: Use statistical detection methods, such as the standard deviation method or the box plot method, to identify outliers in the data set that deviate from the normal range. For example, if the cable burial depth data is far from the expected value (such as an outlier with a negative depth or exceeding the ground thickness), it needs to be marked as an outlier; According to the test results, the outliers are corrected. The correction method can be median filling, sliding window correction or interpolation method according to the specific situation to ensure the rationality of the data.

[0031] S24: Data standardization and normalization: Standardize the pre-processed data to ensure the uniformity and compatibility between various data sources. Specific methods include: Normalization: Convert data of different dimensions (such as cable depth) to the same standardized range, such as normalizing all values ​​to between 0 and 1 to avoid the impact of dimension differences on subsequent analysis; z-score standardization: For variables that need statistical analysis, the z-score standardization method is used, that is, the data is converted into a form with a mean of 0 and a standard deviation of 1, making the comparison between different data more fair; S25: Data storage and backup: Store data after data cleaning, missing value filling and outlier processing, and perform multiple backups to prevent data loss. Data storage should adopt efficient and secure data storage methods and support subsequent real-time access and historical queries.

[0032] S3 includes: S31, preliminary comparison: Preliminary comparison of the pre-processed positioning data (including the latitude and longitude coordinates, burial depth and direction of the cable) with the underground cable line design drawings. By calculating the differences in spatial position, depth and direction between the two, potential deviation areas are preliminarily identified. The comparison process can use basic geometric operations such as distance calculation and angle calculation to ensure that the spatial relationship between the positioning data and the design drawings is as expected.

[0033] S32, calculate the deviation value and perform deviation analysis: Based on the preliminary comparison, the deviation value between the actual position of the cable path and the design drawing is calculated using the error analysis method, including: Position deviation: By calculating the distance difference between the actual cable path and the corresponding position on the design drawing, the spatial difference between the actual cable buried position and the design drawing is analyzed; Depth deviation: Compare the buried depth of the cable with the depth specified in the design drawings, calculate the depth difference, and identify whether there are problems such as over-deep or shallow burial; Direction deviation: Compare the actual direction of the cable with the intended direction on the design drawing, identify changes in the cable path in the curved part, and calculate the angle deviation; S33, Correction and revision of deviation value: Correct the calculated deviation value to ensure that the difference between the actual cable burial path, depth and direction and the design drawing is within an acceptable range, including: Interpolation correction: Use linear interpolation or spline interpolation methods to accurately correct areas with large deviations to ensure continuity and consistency between the cable path and the design drawings; Smoothing correction: In areas with small deviations, a smoothing algorithm (such as curve fitting) is used to smooth the cable path so that the actual buried path is more in line with the design requirements; S34, Corrected comparison and consistency confirmation: The corrected cable path is compared with the design drawings again to confirm the consistency between the corrected path, depth and direction and the design drawings. The comparison result should meet the construction accuracy requirements to ensure that the actual buried status of the cable is consistent with the design intent.

[0034] The S5 also includes: S35, further analysis and troubleshooting of abnormal deviations: For large deviations found during the comparison process, further abnormal analysis and troubleshooting are carried out to comprehensively analyze the possible causes of the deviations, such as equipment errors, construction errors, underground environmental changes, etc., to confirm whether it is a normal construction deviation or a potential problem. For suspected problem areas, use higher-precision positioning equipment or re-measure to ensure the accuracy of the deviation analysis; S36, cross-departmental collaboration and data feedback: Feedback the comparison results and deviation analysis to the construction management team, design engineers and quality supervisors to conduct cross-departmental collaboration to explore how to correct potential problems in the design drawings or adjust the construction plan. Through collaboration, the optimization of the cable path, depth and direction is ensured, and ultimately unnecessary errors are eliminated to ensure construction quality. S37, Correction plan evaluation and implementation: For areas with large deviations, propose correction plans based on the deviation analysis results and evaluate the plans. During the evaluation process, the feasibility, cost and impact of the construction plan on the surrounding environment are considered. After determining the optimal correction plan, implement the correction measures in a timely manner, and compare and confirm again to ensure that the deviation is effectively resolved; S38, briefing on the corrected path: After the corrected cable path, depth and direction are confirmed, they will be provided to the construction team for briefing. The corrected data will be presented through visual displays (such as electronic maps, 3D models, etc.) to ensure that the construction team can accurately understand the actual location and direction of the cable, providing a clear basis for subsequent construction.

[0035] S4 includes: S41, data fusion algorithm application: After the collected positioning data, environmental data and underground facility data are pre-processed, they are fused using the weighted average method. The specific steps include: Set a weight value for each data source (positioning data, environmental data, underground facility data), and the weight value is assigned according to the reliability and accuracy of the data source. For example, positioning data has a higher accuracy, and the weight is set to 0.5; the weight of environmental data is set to 0.3; the weight of underground facility data is set to 0.2.

[0036] Perform weighted averaging on the same location data of each data source to synthesize the final fused data. For example, if the longitude and latitude of a location in the positioning data is (x1, y1), the soil property of the location in the environmental data is A, and the distance of the water pipeline at the location in the underground facility data is B, then the comprehensive information of the location (x, y, A, B) is obtained after weighted calculation. S42, evaluation and optimization of data fusion results: the fused data is input into the Kalman filter algorithm for optimization processing to further remove noise and outliers to ensure the accuracy of the fusion results. The specific steps include: For each set of position data and environmental data, the prediction error of the Kalman filter is calculated, and the data is gradually corrected through iterative calculations; According to the optimized data output by the Kalman filter, the deviation in the fusion result is corrected to ensure that the positioning accuracy is consistent with the environmental data; S43, quality check and correction of fused data: Perform a quality check on the fused data to check its integrity and accuracy. If a large deviation is found in the fused data, use the following correction method: Supplement with redundant sensors or new data collection, especially for positioning data, use multiple high-precision positioning devices for cross-verification.

[0037] For environmental data and underground facility data, the accuracy of the data is ensured through actual on-site verification and comparison with reference design drawings.

[0038] S4 also includes: S44, application of 3D modeling algorithm: Based on the fused data, a 3D model of the cable path is constructed using a B-spline curve fitting algorithm. The specific steps include: Use B-spline curve to fit the actual buried path of the cable to ensure that the cable path is as consistent as possible with the path on the predetermined design drawing. B-spline curve can accurately fit the complex path of the cable through its control points, and is particularly suitable for non-straight cable paths; Based on the data of each control point (such as longitude and latitude coordinates, burial depth), a smooth cable path curve is generated through interpolation calculation; S45, 3D model construction and environmental integration: Use AutoCAD for 3D modeling and integrate it with environmental data to build a 3D path model for the cable. The specific steps include: Import the cable path model into CAD software and construct a three-dimensional cable route based on the longitude and latitude coordinates and burial depth of the cable path; Integrate surrounding environmental information into the model, such as soil type, ground buildings, roads, and other underground facilities (such as water pipes and power lines), to ensure that the three-dimensional path of the cable is accurately associated with the surrounding environment; Use 3D modeling tools in CAD software to visualize the cable path and environmental information, showing the actual location and direction of the cable and its relationship with the surrounding environment; S46, Optimization and verification of the 3D path model: Optimize the constructed 3D path model to ensure that the 3D path model meets the construction requirements. The specific steps include: View the 3D model from multiple angles to ensure that there are no conflicts between cable routes and existing underground utilities.

[0039] By simulating the construction process, the relationship between the cable path and the surrounding environment (such as buildings and roads) is checked to ensure that the construction will not affect the normal use of surrounding facilities.

[0040] The model is updated in real time based on actual feedback from the construction site to ensure that the data during the construction process is consistent with the design drawings.

[0041] The B-spline curve fitting algorithm and CAD modeling technology are used to accurately construct a three-dimensional model of the cable path, and the surrounding environment and underground facilities information are integrated to provide a comprehensive visualization of the cable path. At the same time, real-time optimization and verification of the model ensures that the cable path is accurately matched with the design during the construction process, reducing potential problems in construction.

[0042] S5 includes: S51, generating disclosure information: generating detailed cable path disclosure information based on the constructed three-dimensional path model, the disclosure information includes the following contents: Cable path: shows the actual path of the cable underground, including the location (latitude and longitude) of each key point and the relationship with adjacent facilities; Buried depth: Detailed indication of the buried depth of the cable at each location, so that the construction team can accurately understand the depth distribution of the cable; Surrounding environment information: including soil type, ground buildings, roads, green areas, groundwater levels and other environmental data along the cable path, to ensure comprehensive consideration of the environment during the construction process; S52, visual display of the disclosure information: the generated disclosure information is displayed in a graphical manner. This step includes: Display data such as cable paths, buried depths, and surrounding environments through 3D visualization software (such as AutoCAD and Revit), and provide handover drawings, 3D graphics, and detailed depth profiles; Mark possible construction obstacles, potential risk points and key construction nodes in the 3D model to ensure that the construction team can intuitively understand the layout and surrounding environment of the entire cable path; S53: Accuracy check of the information provided: The accuracy of the information provided is checked to ensure that the provided cable path information is consistent with the actual situation at the construction site. This step includes: Through on-site investigation and verification, ensure that the generated briefing information is consistent with the actual construction environment, including confirmation of the cable's depth, path, surrounding facilities, etc.

[0043] The cable path is verified using ground detection equipment to ensure there are no deviations and that it meets the design standards.

[0044] The S5 also includes: S54, Construction Risk Assessment: Conduct construction risk assessment based on the generated briefing information, including: Conduct a comprehensive risk analysis of the cable route to identify possible construction obstacles, unexpected situations and potential risk points, such as the presence of intersecting underground facilities (such as water pipes, power lines) or complex soil conditions; Use geological survey data and power line data to assess potential conflicts during construction, determine the relationship between cable paths and other underground facilities, and assess possible collisions, interference, or construction difficulties; S55: Construction decision support: Combine risk assessment results with cable path briefing information to provide decision support for the construction team. This step includes: Provide targeted suggestions to the construction team to help them optimize the construction path, avoid potential risk points, and adjust the construction plan. For example, if the cable path intersects with other underground facilities, it can be recommended to adjust the path, depth, or adopt special construction methods (such as increasing the excavation depth, using trenchless technology, etc.); Provide emergency response plans and formulate emergency measures for possible emergencies (such as accidental excavation collisions, environmental disasters, etc.) to ensure safety during the construction process.

[0045] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A precise disclosure method for underground cable construction based on high-precision positioning equipment, characterized in that: The following steps are involved: S1, on-site investigation and data collection: deploy high-precision positioning equipment at the underground cable construction site to collect multi-source data related to underground cables, including positioning data, environmental data and underground facility data; The positioning data includes the location, burial depth and direction of the cable; The environmental data refers to the environmental information around the cable path, including ground buildings, roads and soil characteristics; The underground facility data refers to other underground facilities intersecting or adjacent to the underground cable path, including water pipelines and power pipelines; S2, data preprocessing: preprocessing the collected multi-source data, including data cleaning, missing value filling and outlier processing; S3, cable path and design drawing comparison: compare the pre-processed positioning data with the underground cable line design drawings to analyze and correct potential deviations; S4, data fusion and model building: data fusion algorithm is used to integrate positioning data, environmental data and underground facility data, and 3D modeling technology is used to build a 3D path model of the cable to show the actual buried location and direction of the cable and its relationship with the surrounding environment and underground facilities; S5, accurate briefing and decision support: Based on the constructed 3D path model, the construction team is provided with cable path briefing information, including cable path, burial depth, surrounding environment and potential construction risks.

2. According to claim 1, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment is characterized in that: The S1 includes: S11, positioning equipment: according to the specific needs of the underground cable construction site, select high-precision positioning equipment, including GPS, differential GPS and total station; S12, deploy high-precision positioning equipment: deploy the selected high-precision positioning equipment at key locations on the underground cable construction site; S13, real-time collection of cable positioning data: At the construction site, high-precision positioning equipment is deployed to collect cable location information in real time, including the cable's latitude and longitude coordinates, buried depth and direction; S14, collecting environmental data: using environmental monitoring equipment to collect environmental data; S15, collecting underground facility data: using underground facility detection equipment to collect underground facility data near the cable path; S16, synchronous data storage and transmission: synchronously upload the collected positioning data, environmental data and underground facility data to the data storage platform in real time.

3. According to claim 2, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment is characterized in that: The S2 includes: S21, data cleaning: preliminary cleaning of the collected multi-source data to remove invalid or duplicate data points; S22, missing value filling: missing values ​​caused by equipment failure or environmental factors during data collection are supplemented by filling methods; S23, outlier detection and processing: detect and correct outliers in the data to ensure the rationality of the data; S24: Data standardization and normalization: standardize the preprocessed data; S25: Data storage and backup: Store the data after data cleaning, missing value filling and outlier processing, and perform multiple backups to prevent data loss.

4. According to claim 3, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment is characterized in that: The S3 includes: S31, preliminary comparison: preliminary comparison of the pre-processed positioning data with the underground cable line design drawings, and preliminary identification of potential deviation areas by calculating the differences between the two in spatial position, depth and direction; S32, calculating the deviation value and performing deviation analysis: based on the preliminary comparison, using the error analysis method to calculate the deviation value between the actual position of the cable path and the design drawing; S33, correction and revision of deviation value: performing correction processing on the calculated deviation value; S34, Corrected comparison and consistency confirmation: The corrected cable path is compared with the design drawings again to confirm the consistency between the corrected path, depth and direction and the design drawings.

5. According to claim 4, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment is characterized in that: The S5 further includes: S35, further analysis and troubleshooting of abnormal deviations: For deviations found during the comparison process, abnormal analysis and troubleshooting are performed; S36, cross-departmental collaboration and data feedback: Feedback the comparison results and deviation analysis to the construction management team, design engineers and quality supervisors to conduct cross-departmental collaboration and discuss how to correct potential problems in the design drawings or adjust the construction plan; S37, Correction plan evaluation and implementation: For areas with deviations, propose correction plans based on the deviation analysis results and evaluate the plans; S38, briefing on the revised path: After the revised cable path, depth and direction are confirmed, they will be provided to the construction team for briefing.

6. According to claim 5, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment is characterized in that: The S4 includes: S41, data fusion algorithm application: after the collected positioning data, environmental data and underground facility data are pre-processed, they are fused using the weighted average method; S42, evaluation and optimization of data fusion results: input the fused data into the Kalman filter algorithm for optimization processing; S43, quality check and correction of fused data: perform quality check on the fused data to check the completeness and accuracy of the data.

7. According to claim 6, a method for accurate disclosure of underground cable construction based on high-precision positioning equipment is characterized in that: The S4 further comprises: S44, application of 3D modeling algorithm: based on the fused data, a 3D model of the cable path is constructed using the B-spline curve fitting algorithm; S45, 3D model construction and environmental integration: Use AutoCAD for 3D modeling and integrate it with environmental data to build a 3D path model of the cable; S46, Optimization and verification of the three-dimensional path model: Optimize the constructed three-dimensional path model to ensure that the three-dimensional path model meets the construction requirements.

8. The method for accurate disclosure of underground cable construction based on high-precision positioning equipment according to claim 7 is characterized in that: The S5 includes: S51, generating disclosure information: generating cable path disclosure information according to the constructed three-dimensional path model; S52, visualization of the information disclosure: displaying the generated information disclosure in a graphical manner; S53: Accuracy verification of the information disclosed: perform accuracy verification on the information disclosed.

9. The method for accurate disclosure of underground cable construction based on high-precision positioning equipment according to claim 8 is characterized in that: The S5 further includes: S54, construction risk assessment: conduct construction risk assessment based on the generated briefing information; S55: Construction decision support: Combine risk assessment results with cable path briefing information to provide decision support for the construction team.

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