Urban road model establishment and analysis method, system and storage medium

Abstract

The present invention discloses a method, system and storage medium for establishing and analyzing an urban road model. The method comprises: extracting basic parameter information of viaduct design; setting up equipment for constructing a model of the viaduct; analyzing construction information of abutments belonging to the viaduct; analyzing construction information of support frames belonging to the viaduct; analyzing construction information of bases belonging to the viaduct; analyzing construction information of appearances belonging to the viaduct; comprehensive evaluation of the rationality of viaduct construction; and comprehensive management and early warning of the rationality of viaduct construction. The present invention reduces manual inspection costs, takes into account the structural characteristics of the viaduct, thereby avoiding the risks of manual high-altitude operations, reduces the incidence of safety accidents to a large extent, and can discover subtle construction safety issues existing in the viaduct. The inspection dimension is comprehensive, thereby reducing the failure rate after the viaduct is put into actual use, and effectively guarantees the operational stability of the entire urban transportation system.

Description

Technical Field

[0001] The present invention belongs to the technical field of urban road analysis, and in particular relates to an urban road model establishment and analysis method, system and storage medium. Background Art

[0002] With the continuous advancement of urbanization and the rapid increase of urban population, the number of various motor vehicles is also rising. Due to the limited urban land area, many cities have experienced serious traffic congestion and blockage. In order to alleviate the sharply increasing traffic pressure, a large number of cities choose to build viaducts to adapt to the growing traffic volume. Compared with ordinary urban traffic roads, viaducts can effectively utilize urban space and effectively alleviate traffic congestion. However, due to the structural characteristics of the viaduct itself, its safety issues are particularly prominent. If the viaduct is put into actual use due to improper construction, there will be great safety hazards, which will threaten the travel safety of urban residents. Therefore, it is particularly important to analyze the rationality of the construction of the viaduct.

[0003] At present, the existing technology has the following drawbacks in the rationality analysis of viaduct construction:

[0004] (1) Most existing technologies rely on professional staff to inspect and analyze the rationality of the construction of viaducts. The level of intelligence is low, which not only requires high labor costs, but also, due to the structural characteristics of the viaduct, manual inspection and analysis inevitably involve the risk of high-altitude operations, which in turn puts a great burden on the workers' bodies and increases the incidence of safety accidents to a certain extent.

[0005] (2) The existing technology is greatly affected by human subjective factors, and the efficiency of manual detection is low. In addition, due to the blind spots in the human eye, it is difficult to detect subtle construction safety problems of the viaduct, which in turn increases the failure rate of the viaduct after it is put into actual use, and cannot guarantee the operational stability of the entire urban transportation system. Summary of the Invention

[0006] In order to overcome the shortcomings of the background technology, the embodiments of the present invention provide a method, system and storage medium for establishing and analyzing an urban road model, which can effectively solve the problems involved in the above-mentioned background technology.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A first aspect of the present invention provides a method for establishing and analyzing an urban road model, the method comprising the following steps:

[0009] S1. Extraction of basic design parameters of the viaduct: Based on the designed 3D model of the viaduct, the corresponding basic design parameters of the viaduct are extracted;

[0010] S2. Viaduct Model Construction Equipment Setup: A cruise drone is used as the primary model construction equipment. A lidar scanner is installed in the drone to scan the completed viaduct and construct a three-dimensional model of the viaduct.

[0011] S3. Analysis of viaduct abutment construction information: Based on the viaduct's 3D model, the viaduct abutments are identified and their total lengths are extracted. The abutments are then divided into several sub-areas, numbered 1, 2, ..., i, ..., q. The construction widths of each abutment sub-area are then extracted, and the construction rationality evaluation coefficients of the viaduct abutments are derived from this analysis.

[0012] S4. Analysis of construction information for the viaduct's supporting frames: Based on the viaduct's 3D model, the supporting frames are identified and numbered 1, 2, ..., m, ..., v. The corresponding placement angles and heights of each supporting frame are then extracted. This analysis yields the corresponding construction rationality evaluation coefficient for each supporting frame.

[0013] S5. Analysis of construction information for viaduct substructures: Based on the 3D model of the viaduct, identify each substructure and number it as 1, 2, ..., k, ..., n. Then, extract the corresponding 3D image of each substructure and analyze it to determine the construction rationality evaluation coefficient for each substructure.

[0014] S6. Analysis of the viaduct's exterior construction information: Based on the viaduct's 3D model, extract the corresponding 3D exterior image of the viaduct. This analysis then yields a rationality evaluation coefficient for the viaduct's exterior construction.

[0015] S7. Comprehensive evaluation of the rationality of viaduct construction: Based on the construction rationality evaluation coefficients of the viaduct's abutments, the construction rationality evaluation coefficients corresponding to the viaduct's support frames, the construction rationality evaluation coefficients corresponding to the viaduct's base, and the construction rationality evaluation coefficients of the viaduct's exterior, a comprehensive evaluation coefficient for the rationality of the viaduct's construction is obtained.

[0016] S8. Comprehensive management and early warning of the rationality of viaduct construction: Based on the comprehensive evaluation coefficient of the rationality of viaduct construction, a comprehensive management and early warning of the rationality of viaduct construction is carried out.

[0017] Preferably, the basic design parameter information corresponding to the viaduct includes: the designed total length of the abutment, the designed width of the abutment, the designed placement angle of the support frame, the designed height of each support frame, the designed three-dimensional coordinates of each detection point corresponding to each base, and the designed three-dimensional appearance image of the viaduct.

[0018] Preferably, the construction rationality evaluation coefficient of the abutment of the viaduct is obtained by analysis in step S3, and the specific analysis process is as follows:

[0019] S31: Compare the total construction length of the abutments of the viaduct with the total design length of the abutments, and calculate the rationality evaluation coefficient of the total length of the abutments of the viaduct. The calculation formula is: Where δ represents the rationality evaluation coefficient of the total length of the abutments of the viaduct, len′ represents the total construction length of the abutments of the viaduct, and len0 represents the total design length of the abutments of the viaduct;

[0020] S32: Compare the construction width corresponding to the abutment sub-area of ​​each viaduct with the design width of the abutment, and calculate the rationality evaluation coefficient of the width construction of the abutment of the viaduct. The calculation formula is: in It is expressed as the evaluation coefficient of the width construction rationality of the abutment of the viaduct, KD0 is expressed as the design width of the abutment, kd i It is represented as the construction width corresponding to the abutment sub-area of ​​the i-th viaduct;

[0021] S33: Based on the total length construction rationality evaluation coefficient of the viaduct abutments and the width construction rationality evaluation coefficient of the viaduct abutments, the construction rationality evaluation coefficient of the viaduct abutments is calculated, and the calculation formula is: in It is expressed as the construction rationality evaluation coefficient of the abutment of the viaduct, and a1 and a2 are respectively expressed as the rationality evaluation correction factors corresponding to the total construction length and construction width of the abutment of the viaduct.

[0022] Preferably, the construction rationality evaluation coefficient corresponding to the supporting frame of the viaduct is obtained by analysis in step S4, and the specific analysis process is as follows:

[0023] S41: Recording the angle formed between each support frame of the viaduct and the base as the construction placement angle;

[0024] S42: Compare the construction placement angles corresponding to the support frames of the viaduct with the design placement angles of the support frames, and calculate the rationality evaluation coefficient of the construction placement angles corresponding to the support frames of the viaduct. The calculation formula is: in It is represented by the rationality evaluation coefficient of the construction placement angle corresponding to the support frame of the viaduct, θ0″ is represented by the design placement angle of the support frame, θ m It is represented by the construction placement angle corresponding to the mth support frame of the viaduct;

[0025] S43: Compare the construction heights corresponding to the support frames of the viaduct with the design heights of the support frames, and calculate the rationality evaluation coefficient of the construction heights corresponding to the support frames of the viaduct. The calculation formula is: Where η represents the rationality evaluation coefficient of the construction height corresponding to the supporting frame of the viaduct, H0 m Expressed as the design height of the mth support frame, h m ′ represents the construction height corresponding to the mth support frame of the viaduct, and e represents a natural constant;

[0026] S44: Based on the construction placement angle rationality evaluation coefficient corresponding to the viaduct support frame and the construction height rationality evaluation coefficient corresponding to the viaduct support frame, the construction rationality evaluation coefficient corresponding to the viaduct support frame is calculated, and the calculation formula is: Where μ represents the construction rationality evaluation coefficient corresponding to the support frame of the viaduct, and χ1 and χ2 represent the rationality evaluation correction coefficients corresponding to the construction placement angle and construction height of the support frame of the viaduct, respectively.

[0027] Preferably, the construction rationality evaluation coefficient corresponding to the base of the viaduct is obtained by analysis in step S5, and the specific process is as follows:

[0028] S51: Based on the three-dimensional images corresponding to the bases of the viaduct, outline the corresponding outlines of the bases, and then construct a three-dimensional coordinate system for the bases of the viaduct;

[0029] S52: Arrange detection points on each base of the viaduct according to a preset distance interval, and number each detection point as 1, 2, ..., j, ..., r, and then obtain the construction three-dimensional coordinates of each detection point corresponding to each base of the viaduct;

[0030] S53: Compare the construction three-dimensional coordinates of each inspection point corresponding to each base of the viaduct with the design three-dimensional coordinates of each inspection point corresponding to each base, and calculate the construction rationality evaluation coefficient corresponding to the base of the viaduct, the calculation formula of which is: , where β represents the construction rationality evaluation coefficient corresponding to the viaduct base, x k0 j 、y k0 j and z k0 jThey are respectively represented as the design three-dimensional coordinate values ​​of the k-th base corresponding to the j-th detection point, x kj ′、y kj ′ and z kj ′ respectively represent the three-dimensional coordinate values ​​of the construction of the j-th detection point corresponding to the k-th base of the viaduct.

[0031] Preferably, the analysis in step S6 to obtain the rationality evaluation coefficient of the appearance construction of the viaduct is carried out as follows:

[0032] S61: Comparing the construction 3D appearance image corresponding to the viaduct with the design 3D appearance image of the viaduct, thereby extracting appearance defect areas corresponding to the viaduct and numbering them as 1, 2, ..., p, ..., w, respectively, and then extracting the appearance defect type and appearance defect area of ​​each appearance defect area;

[0033] S62: Match the appearance defect type corresponding to each appearance defect area of ​​the viaduct with the preset evaluation impact factor per unit area of ​​each appearance defect type, and obtain the evaluation impact factor per unit area of ​​the appearance defect type corresponding to each appearance defect area of ​​the viaduct, and then calculate the evaluation coefficient of the rationality of the appearance construction of the viaduct based on the evaluation factor. The calculation formula is: ζ is the evaluation coefficient of the rationality of the appearance construction of the viaduct, D p and κ p ″ respectively represent the appearance defect area of ​​the viaduct corresponding to the p-th appearance defect area and the evaluation impact factor per unit area of ​​the appearance defect type.

[0034] Preferably, the comprehensive evaluation coefficient of the rationality of viaduct construction is obtained by analysis in step S7, and the specific calculation formula is: Where ψ represents the comprehensive evaluation coefficient of the rationality of the viaduct construction, and b1, b2, b3 and b4 represent the rationality evaluation weight coefficients corresponding to the preset abutments, support frames, bases and appearances of the viaduct, respectively.

[0035] Preferably, in step S8, a comprehensive management early warning is performed on the rationality of the viaduct construction, and the specific process is: comparing the comprehensive evaluation coefficient of the rationality of the viaduct construction with the set comprehensive evaluation coefficient of the rationality standard of the viaduct construction; if the comprehensive evaluation coefficient of the rationality of the viaduct construction is lower than the comprehensive evaluation coefficient of the rationality standard of the viaduct construction, an early warning of unreasonable viaduct construction is issued.

[0036] A second aspect of the present invention provides a system for establishing and analyzing an urban road model, the system comprising:

[0037] Viaduct design basic parameter information extraction module: used to extract the corresponding basic design parameter information of the viaduct based on the designed three-dimensional model of the viaduct;

[0038] The viaduct model construction equipment setting module is used to use a cruise drone as the main model construction equipment. By installing a lidar scanner in the cruise drone, the completed viaduct is scanned to construct a three-dimensional model of the viaduct.

[0039] Viaduct abutment construction information analysis module: This module is used to identify the abutments of the viaduct based on the 3D model of the viaduct, extract the total construction length of the abutments, and divide the abutments into several sub-areas of the viaduct. These sub-areas are numbered 1, 2, ..., i, ..., q, and the corresponding construction width of each abutment sub-area is extracted. This analysis is used to determine the construction rationality evaluation coefficient of the abutments of the viaduct.

[0040] Viaduct support frame construction information analysis module: This module is used to identify the viaduct's support frames based on the viaduct's 3D model and number them as 1, 2, ..., m, ..., v. It then extracts the corresponding construction placement angle and height of each support frame, thereby analyzing and deriving the construction rationality evaluation coefficient of each support frame.

[0041] The viaduct base construction information analysis module is used to identify the viaduct bases based on the viaduct's 3D model and number them as 1, 2, ..., k, ..., n. The module then extracts the corresponding 3D images of the viaduct bases and analyzes them to obtain the construction rationality evaluation coefficients for the viaduct bases.

[0042] The viaduct appearance construction information analysis module is used to extract the corresponding three-dimensional appearance image of the viaduct based on the three-dimensional model of the viaduct, and thus obtain the rationality evaluation coefficient of the viaduct appearance construction;

[0043] Comprehensive evaluation module for the rationality of viaduct construction: This module is used to analyze and obtain the comprehensive evaluation coefficient of the rationality of viaduct construction based on the construction rationality evaluation coefficients of the viaduct's abutments, the construction rationality evaluation coefficients corresponding to the viaduct's support frames, the construction rationality evaluation coefficients corresponding to the viaduct's bases, and the construction rationality evaluation coefficients of the viaduct's exterior appearance.

[0044] Comprehensive management and early warning module for the rationality of viaduct construction: used to conduct comprehensive management and early warning on the rationality of viaduct construction based on the comprehensive evaluation coefficient of the rationality of viaduct construction.

[0045] A third aspect of the present invention provides a storage medium for establishing and analyzing a city road model. The storage medium is burned with a computer program. When the computer program is run in the memory of a server, it implements the above-mentioned method for establishing and analyzing a city road model.

[0046] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0047] (1) The present invention provides an urban road model establishment and analysis method, system and storage medium with a high level of intelligence, thereby avoiding the problem of over-reliance on professional staff to detect and analyze the rationality of viaduct construction in the prior art, reducing the cost of manual inspection, and taking into account the structural characteristics of the viaduct, thereby avoiding the risk of manual high-altitude operations, greatly alleviating the physical burden on staff, and reducing the incidence of safety accidents to a large extent.

[0048] (2) The present invention uses a cruise drone as the main equipment for model construction, and evaluates the comprehensive evaluation coefficient of the rationality of the viaduct construction based on the constructed three-dimensional model of the viaduct, thereby avoiding the influence of human subjective factors and greatly improving the detection efficiency. At the same time, it is not affected by the detection blind spots of the human eye, and can discover subtle construction safety problems of the viaduct. The detection dimension is comprehensive, thereby reducing the failure rate of the viaduct after it is put into actual use, and effectively ensuring the operational stability of the entire urban transportation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0050] Figure 1 Schematic diagram of the steps for implementing the method of the present invention.

[0051] Figure 2 This is a schematic diagram of the connection of various modules of the system of the present invention. DETAILED DESCRIPTION

[0052] 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.

[0053] See also Figure 1 As shown, the first aspect of the present invention provides a method for establishing and analyzing an urban road model, the method comprising the following steps:

[0054] S1. Extraction of basic design parameters of the viaduct: Based on the designed 3D model of the viaduct, the corresponding basic design parameters of the viaduct are extracted;

[0055] Specifically, the basic design parameter information corresponding to the viaduct includes: the designed total length of the abutment, the designed width of the abutment, the designed placement angle of the support frame, the designed height of each support frame, the designed three-dimensional coordinates of each detection point corresponding to each base, and the designed three-dimensional appearance image of the viaduct.

[0056] S2. Equipment setup for building the viaduct model: A cruise drone is used as the main model building device. A lidar scanner is installed in the cruise drone to scan the completed viaduct and construct a three-dimensional model of the viaduct.

[0057] S3. Analysis of viaduct abutment construction information: Based on the viaduct's 3D model, the viaduct abutments are identified and their total lengths are extracted. The abutments are then divided into several sub-areas, numbered 1, 2, ..., i, ..., q. The construction widths of each abutment sub-area are then extracted, and the construction rationality evaluation coefficients of the viaduct abutments are derived from this analysis.

[0058] Specifically, the construction rationality evaluation coefficient of the abutment of the viaduct is obtained by analysis in step S3, and the specific analysis process is as follows:

[0059] S31: Compare the total construction length of the abutments of the viaduct with the total design length of the abutments, and calculate the rationality evaluation coefficient of the total length of the abutments of the viaduct. The calculation formula is: Where δ represents the rationality evaluation coefficient of the total length of the abutments of the viaduct, len′ represents the total construction length of the abutments of the viaduct, and len0 represents the total design length of the abutments of the viaduct;

[0060] It should be noted that in the above-mentioned calculation formula for the rationality evaluation coefficient of the total length of the construction of the abutments belonging to the viaduct, the smaller the difference between the total construction length of the abutments belonging to the viaduct and the total design length of the abutments belonging to the viaduct, the larger the rationality evaluation coefficient of the total length of the construction of the abutments belonging to the viaduct, indicating that the total length of the abutments belonging to the viaduct is more in line with the design standards.

[0061] S32: Compare the construction width corresponding to the abutment sub-area of ​​each viaduct with the design width of the abutment, and calculate the rationality evaluation coefficient of the width construction of the abutment of the viaduct. The calculation formula is: in It is expressed as the evaluation coefficient of the width construction rationality of the abutment of the viaduct, KD0 is expressed as the design width of the abutment, kd i It is represented as the construction width corresponding to the abutment sub-area of ​​the i-th viaduct;

[0062] It should be noted that in the calculation formula for the construction rationality evaluation coefficient of the abutment width of the above-mentioned viaduct, the smaller the difference between the construction width corresponding to the abutment sub-area of ​​a certain viaduct and the design width of the abutment, the larger the construction rationality evaluation coefficient of the abutment width of the viaduct, indicating that the width of the abutment of the viaduct is more in line with the design standards.

[0063] S33: Based on the total length construction rationality evaluation coefficient of the viaduct abutments and the width construction rationality evaluation coefficient of the viaduct abutments, the construction rationality evaluation coefficient of the viaduct abutments is calculated, and the calculation formula is: in It is expressed as the construction rationality evaluation coefficient of the abutment of the viaduct, and a1 and a2 are respectively expressed as the rationality evaluation correction factors corresponding to the total construction length and construction width of the abutment of the viaduct.

[0064] In a specific embodiment of the present invention, the total length and width of the abutments of the viaduct are analyzed. The purpose is that the total length and width are important bases for evaluating the rationality of the construction of the viaduct. The total length and width of the abutments of the viaduct are analyzed separately, thereby providing a reliability basis for the comprehensive evaluation of the rationality of the construction of the viaduct.

[0065] S4. Analysis of construction information for the viaduct's supporting frames: Based on the viaduct's 3D model, the supporting frames are identified and numbered 1, 2, ..., m, ..., v. The corresponding placement angles and heights of each supporting frame are then extracted. This analysis yields the corresponding construction rationality evaluation coefficient for each supporting frame.

[0066] Specifically, in step S4, the construction rationality evaluation coefficient corresponding to the supporting frame of the viaduct is obtained by analysis, and the specific analysis process is as follows:

[0067] S41: Recording the angle formed between each support frame of the viaduct and the base as the construction placement angle;

[0068] S42: Compare the construction placement angles corresponding to the support frames of the viaduct with the design placement angles of the support frames, and calculate the rationality evaluation coefficient of the construction placement angles corresponding to the support frames of the viaduct. The calculation formula is: in It is represented by the rationality evaluation coefficient of the construction placement angle corresponding to the support frame of the viaduct, θ0″ is represented by the design placement angle of the support frame, θm It is represented by the construction placement angle corresponding to the mth support frame of the viaduct;

[0069] It should be noted that in the calculation formula for the rationality evaluation coefficient of the construction placement angle corresponding to the support frame belonging to the above-mentioned viaduct, the smaller the difference between the construction placement angle corresponding to a certain support frame belonging to the viaduct and the design placement angle of the support frame, the greater the rationality evaluation coefficient of the construction placement angle corresponding to the support frame belonging to the viaduct, indicating that the construction placement angle of the support frame belonging to the viaduct is more in line with the design standards.

[0070] In a specific embodiment of the present invention, by analyzing the construction placement angles corresponding to the support frames of the viaduct, it is possible to effectively determine whether the support frames of the viaduct are tilted, thereby effectively reducing the incidence of collapse of the viaduct after it is put into actual use.

[0071] S43: Compare the construction heights corresponding to the support frames of the viaduct with the design heights of the support frames, and calculate the rationality evaluation coefficient of the construction heights corresponding to the support frames of the viaduct. The calculation formula is: Where η represents the rationality evaluation coefficient of the construction height corresponding to the supporting frame of the viaduct, H0 m Expressed as the design height of the mth support frame, h m ′ represents the construction height corresponding to the mth support frame of the viaduct, and e represents a natural constant;

[0072] It should be noted that in the calculation formula for the rationality evaluation coefficient of the construction height corresponding to the support frame of the above-mentioned viaduct, the smaller the difference between the construction height corresponding to a certain support frame of the viaduct and the design height of the support frame, the greater the rationality evaluation coefficient of the construction height corresponding to the support frame of the viaduct, indicating that the construction height of the support frame of the viaduct is more in line with the design standards.

[0073] In a specific embodiment of the present invention, by analyzing the construction heights corresponding to the support frames of the viaduct, it is avoided that the viaduct is unevenly stressed due to the large difference between the construction height and the design height of the support frames, thereby increasing the safety risks after the viaduct is put into actual use.

[0074] S44: Based on the construction placement angle rationality evaluation coefficient corresponding to the viaduct support frame and the construction height rationality evaluation coefficient corresponding to the viaduct support frame, the construction rationality evaluation coefficient corresponding to the viaduct support frame is calculated, and the calculation formula is: Where μ represents the construction rationality evaluation coefficient corresponding to the support frame of the viaduct, and χ1 and χ2 represent the rationality evaluation correction coefficients corresponding to the construction placement angle and construction height of the support frame of the viaduct, respectively.

[0075] S5. Analysis of construction information for viaduct substructures: Based on the 3D model of the viaduct, identify each substructure and number it as 1, 2, ..., k, ..., n. Then, extract the corresponding 3D image of each substructure and analyze it to determine the construction rationality evaluation coefficient for each substructure.

[0076] Specifically, the analysis in step S5 to obtain the construction rationality evaluation coefficient corresponding to the viaduct foundation is as follows:

[0077] S51: Based on the three-dimensional images corresponding to the bases of the viaduct, outline the corresponding outlines of the bases, and then construct a three-dimensional coordinate system for the bases of the viaduct;

[0078] S52: Arrange detection points on each base of the viaduct according to a preset distance interval, and number each detection point as 1, 2, ..., j, ..., r, and then obtain the construction three-dimensional coordinates of each detection point corresponding to each base of the viaduct;

[0079] S53: Compare the construction three-dimensional coordinates of each inspection point corresponding to each base of the viaduct with the design three-dimensional coordinates of each inspection point corresponding to each base, and calculate the construction rationality evaluation coefficient corresponding to the base of the viaduct, the calculation formula of which is: , where β represents the construction rationality evaluation coefficient corresponding to the viaduct base, x k0 j 、y k0 j and z k0 j They are respectively represented as the design three-dimensional coordinate values ​​of the k-th base corresponding to the j-th detection point, x kj ′、y kj ′ and z kj ′ respectively represent the three-dimensional coordinate values ​​of the construction of the j-th detection point corresponding to the k-th base of the viaduct.

[0080] It should be noted that in the calculation formula for the construction rationality evaluation coefficient corresponding to the above-mentioned base of the viaduct, the smaller the difference between the construction three-dimensional coordinate value of a certain inspection point corresponding to a certain base of the viaduct and the design three-dimensional coordinate value of the inspection point corresponding to the base, the larger the construction rationality evaluation coefficient corresponding to the base of the viaduct, indicating that the base of the viaduct more meets the design standards.

[0081] In a specific embodiment of the present invention, by analyzing the various bases belonging to the viaduct, the settlement and displacement conditions of the various bases belonging to the viaduct can be discovered, thereby effectively ensuring the stability of the viaduct after it is put into actual use.

[0082] S6. Analysis of the viaduct's exterior construction information: Based on the viaduct's 3D model, extract the corresponding 3D exterior image of the viaduct. This analysis then yields a rationality evaluation coefficient for the viaduct's exterior construction.

[0083] Specifically, the analysis in step S6 to obtain the rationality evaluation coefficient of the appearance construction of the viaduct is as follows:

[0084] S61: Comparing the construction 3D appearance image corresponding to the viaduct with the design 3D appearance image of the viaduct, thereby extracting appearance defect areas corresponding to the viaduct and numbering them as 1, 2, ..., p, ..., w, respectively, and then extracting the appearance defect type and appearance defect area of ​​each appearance defect area;

[0085] S62: Match the appearance defect type corresponding to each appearance defect area of ​​the viaduct with the preset evaluation impact factor per unit area of ​​each appearance defect type, and obtain the evaluation impact factor per unit area of ​​the appearance defect type corresponding to each appearance defect area of ​​the viaduct, and then calculate the evaluation coefficient of the rationality of the appearance construction of the viaduct based on the evaluation factor. The calculation formula is: ζ is the evaluation coefficient of the rationality of the appearance construction of the viaduct, D p and κ p ″ respectively represent the appearance defect area of ​​the viaduct corresponding to the p-th appearance defect area and the evaluation impact factor per unit area of ​​the appearance defect type.

[0086] In a specific embodiment of the present invention, the types of appearance defects of the viaduct include cracks and peeling.

[0087] S7. Comprehensive evaluation of the rationality of viaduct construction: Based on the construction rationality evaluation coefficients of the viaduct's abutments, the construction rationality evaluation coefficients corresponding to the viaduct's support frames, the construction rationality evaluation coefficients corresponding to the viaduct's base, and the construction rationality evaluation coefficients of the viaduct's exterior, a comprehensive evaluation coefficient for the rationality of the viaduct's construction is obtained.

[0088] Specifically, the comprehensive evaluation coefficient of the rationality of viaduct construction is obtained by analysis in step S7, and the specific calculation formula is: Where ψ represents the comprehensive evaluation coefficient of the rationality of the viaduct construction, and b1, b2, b3 and b4 represent the rationality evaluation weight coefficients corresponding to the preset abutments, support frames, bases and appearances of the viaduct, respectively.

[0089] S8. Comprehensive management and early warning of the rationality of viaduct construction: Based on the comprehensive evaluation coefficient of the rationality of viaduct construction, a comprehensive management and early warning of the rationality of viaduct construction is carried out.

[0090] Specifically, in step S8, a comprehensive management early warning is carried out on the rationality of the construction of the viaduct, and the specific process is: comparing the comprehensive evaluation coefficient of the rationality of the viaduct construction with the set comprehensive evaluation coefficient of the rationality standard of the viaduct construction. If the comprehensive evaluation coefficient of the rationality of the viaduct construction is lower than the comprehensive evaluation coefficient of the rationality standard of the viaduct construction, an early warning of unreasonable viaduct construction is issued.

[0091] In a specific embodiment of the present invention, a cruising drone is used as the main model construction equipment, and the comprehensive evaluation coefficient of the rationality of the viaduct construction is evaluated based on the constructed three-dimensional model of the viaduct, thereby avoiding the influence of human subjective factors and greatly improving the detection efficiency. At the same time, it is not affected by the detection blind spots of the human eye, and can discover subtle construction safety problems of the viaduct. The detection dimension is comprehensive, thereby reducing the failure rate of the viaduct after it is put into actual use, and effectively ensuring the operational stability of the entire urban transportation system.

[0092] See also Figure 2 As shown, the second aspect of the present invention provides an urban road model establishment and analysis system, including: an elevated bridge design basic parameter information extraction module, an elevated bridge model construction equipment setting module, an elevated bridge abutment construction information analysis module, an elevated bridge support frame construction information analysis module, an elevated bridge base construction information analysis module, an elevated bridge appearance construction information analysis module, an elevated bridge construction rationality comprehensive evaluation module, and an elevated bridge construction rationality comprehensive management and early warning module;

[0093] The viaduct abutment construction information analysis module, the viaduct support frame construction information analysis module, the viaduct base construction information analysis module and the viaduct appearance construction information analysis module are respectively connected to the viaduct design basic parameter information extraction module, the viaduct model construction equipment setting module and the viaduct construction rationality comprehensive evaluation module, and the viaduct construction rationality comprehensive management early warning module and the viaduct construction rationality comprehensive evaluation module;

[0094] The viaduct design basic parameter information extraction module is used to extract the corresponding basic parameter information of the viaduct design based on the designed three-dimensional model of the viaduct;

[0095] The viaduct model construction equipment setting module is used to use a cruise drone as the main model construction equipment, and to scan the completed viaduct by building a laser radar scanner in the cruise drone, thereby constructing a three-dimensional model of the viaduct;

[0096] The viaduct abutment construction information analysis module is used to identify the viaduct abutments based on the three-dimensional model of the viaduct, extract the total construction length of the viaduct abutments, and divide the viaduct abutments into regions to obtain a number of viaduct abutment sub-regions, which are numbered 1, 2, ..., i, ..., q, and then extract the construction width corresponding to each viaduct abutment sub-region, thereby analyzing and obtaining the construction rationality evaluation coefficient of the viaduct abutments;

[0097] The viaduct support frame construction information analysis module is used to identify the viaduct support frames based on the viaduct three-dimensional model and number them as 1, 2, ..., m, ..., v, and then extract the construction placement angle and construction height corresponding to each viaduct support frame, thereby analyzing and obtaining the construction rationality evaluation coefficient corresponding to the viaduct support frame;

[0098] The viaduct base construction information analysis module is used to identify the bases of the viaduct based on the three-dimensional model of the viaduct, and number them as 1, 2, ..., k, ..., n, and then extract the three-dimensional images corresponding to the bases of the viaduct, thereby analyzing and obtaining the construction rationality evaluation coefficient corresponding to the bases of the viaduct;

[0099] The viaduct appearance construction information analysis module is used to extract the corresponding three-dimensional appearance image of the viaduct based on the three-dimensional model of the viaduct, and thereby obtain the rationality evaluation coefficient of the viaduct appearance construction;

[0100] The comprehensive evaluation module for the rationality of viaduct construction is used to analyze and obtain the comprehensive evaluation coefficient of the rationality of viaduct construction based on the construction rationality evaluation coefficient of the abutment of the viaduct, the construction rationality evaluation coefficient corresponding to the support frame of the viaduct, the construction rationality evaluation coefficient corresponding to the base of the viaduct and the construction rationality evaluation coefficient of the appearance of the viaduct;

[0101] The viaduct construction rationality comprehensive management and early warning module is used to perform comprehensive management and early warning on the construction rationality of the viaduct based on the comprehensive evaluation coefficient of the viaduct construction rationality.

[0102] A third aspect of the present invention provides a storage medium for establishing and analyzing a city road model, wherein the storage medium is burned with a computer program, and when the computer program is run in the memory of a server, the method for establishing and analyzing a city road model described above is implemented.

[0103] In a specific embodiment of the present invention, by providing an urban road model establishment and analysis method, system and storage medium, it has a high level of intelligence, avoids the problem of over-reliance on professional staff to detect and analyze the rationality of viaduct construction in the existing technology, reduces the cost of manual inspection, and at the same time takes into account the structural characteristics of the viaduct, thereby avoiding the risk of manual high-altitude operations, greatly alleviating the physical burden of staff, and reducing the incidence of safety accidents to a large extent.

[0104] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A method for establishing and analyzing an urban road model, characterized in that: include: S1. Extraction of basic design parameters of the viaduct: Based on the designed 3D model of the viaduct, the corresponding basic design parameters of the viaduct are extracted; S2. Viaduct Model Construction Equipment Setup: A cruise drone is used as the primary model construction equipment. A lidar scanner is installed in the drone to scan the completed viaduct and construct a three-dimensional model of the viaduct. S3. Analysis of viaduct abutment construction information: Based on the viaduct's 3D model, the viaduct abutments are identified and their total length is extracted. The abutments are then divided into several sub-areas, numbered 1, 2, ..., i, ..., q. The corresponding construction widths of each abutment sub-area are then extracted, and the construction rationality evaluation coefficients of the viaduct abutments are derived from this analysis. S4. Analysis of construction information for the viaduct's supporting frames: Based on the viaduct's 3D model, the supporting frames are identified and numbered 1, 2, ..., m, ..., v. The corresponding placement angles and heights of each supporting frame are then extracted. This analysis yields the corresponding construction rationality evaluation coefficient for each supporting frame. S5. Analysis of construction information for viaduct substructures: Based on the 3D model of the viaduct, identify each substructure and number it as 1, 2, ..., k, ..., n. Then, extract the corresponding 3D image of each substructure and analyze it to determine the construction rationality evaluation coefficient for each substructure. S6. Analysis of the viaduct's exterior construction information: Based on the viaduct's 3D model, extract the corresponding 3D exterior image of the viaduct. This analysis then yields a rationality evaluation coefficient for the viaduct's exterior construction. S7. Comprehensive evaluation of the rationality of viaduct construction: Based on the construction rationality evaluation coefficients of the viaduct's abutments, the construction rationality evaluation coefficients corresponding to the viaduct's support frames, the construction rationality evaluation coefficients corresponding to the viaduct's base, and the construction rationality evaluation coefficients of the viaduct's exterior, a comprehensive evaluation coefficient for the rationality of the viaduct's construction is obtained. S8. Comprehensive management and early warning of the rationality of viaduct construction: Based on the comprehensive evaluation coefficient of the rationality of viaduct construction, a comprehensive management and early warning of the rationality of viaduct construction is carried out.

2. The urban road model establishment and analysis method according to claim 1, characterized in that: The basic design parameter information corresponding to the viaduct includes: the total design length of the abutment, the design width of the abutment, the design placement angle of the support frame, the design height of each support frame, the design three-dimensional coordinates of each detection point corresponding to each base, and the design three-dimensional appearance image of the viaduct.

3. The urban road model establishment and analysis method according to claim 1, characterized in that: In step S3, the construction rationality evaluation coefficient of the abutments of the viaduct is obtained through analysis, and the specific analysis process is as follows: S31: Compare the total construction length of the abutments of the viaduct with the total design length of the abutments, and calculate the rationality evaluation coefficient of the total length of the abutments of the viaduct. The calculation formula is: Where δ represents the rationality evaluation coefficient of the total length of the abutments of the viaduct, len′ represents the total length of the abutments of the viaduct, and len0 represents the total design length of the abutments. S32: Compare the construction width corresponding to the abutment sub-area of ​​each viaduct with the design width of the abutment, and calculate the rationality evaluation coefficient of the width construction of the abutment of the viaduct. The calculation formula is: in It is expressed as the evaluation coefficient of the width construction rationality of the abutment of the viaduct, KD0 is expressed as the design width of the abutment, kd i It is represented as the construction width corresponding to the abutment sub-area of ​​the i-th viaduct; S33: Based on the total length construction rationality evaluation coefficient of the viaduct abutments and the width construction rationality evaluation coefficient of the viaduct abutments, the construction rationality evaluation coefficient of the viaduct abutments is calculated, and the calculation formula is: in It is expressed as the construction rationality evaluation coefficient of the abutment of the viaduct, and a1 and a2 are respectively expressed as the rationality evaluation correction factors corresponding to the total construction length and construction width of the abutment of the viaduct.

4. The urban road model establishment and analysis method according to claim 3, characterized in that: In step S4, the construction rationality evaluation coefficient corresponding to the supporting frame of the viaduct is obtained by analysis, and the specific analysis process is as follows: S41: Recording the angle formed between each support frame of the viaduct and the base as the construction placement angle; S42: Compare the construction placement angles corresponding to the support frames of the viaduct with the design placement angles of the support frames, and calculate the rationality evaluation coefficient of the construction placement angles corresponding to the support frames of the viaduct. The calculation formula is: in It is represented by the rationality evaluation coefficient of the construction placement angle corresponding to the support frame of the viaduct, θ0″ is represented by the design placement angle of the support frame, θ m It is represented by the construction placement angle corresponding to the mth support frame of the viaduct; S43: Compare the construction heights corresponding to the support frames of the viaduct with the design heights of the support frames, and calculate the rationality evaluation coefficient of the construction heights corresponding to the support frames of the viaduct. The calculation formula is: Where η represents the rationality evaluation coefficient of the construction height corresponding to the supporting frame of the viaduct, H0 m Expressed as the design height of the mth support frame, h m ′ represents the construction height corresponding to the mth support frame of the viaduct, and e represents a natural constant; S44: Based on the construction placement angle rationality evaluation coefficient corresponding to the viaduct support frame and the construction height rationality evaluation coefficient corresponding to the viaduct support frame, the construction rationality evaluation coefficient corresponding to the viaduct support frame is calculated, and the calculation formula is: Where μ represents the construction rationality evaluation coefficient corresponding to the support frame of the viaduct, and χ1 and χ2 represent the rationality evaluation correction coefficients corresponding to the construction placement angle and construction height of the support frame of the viaduct, respectively.

5. The urban road model establishment and analysis method according to claim 4, characterized in that: In step S5, the construction rationality evaluation coefficient corresponding to the viaduct foundation is obtained through analysis, and the specific process is as follows: S51: Based on the three-dimensional images corresponding to the bases of the viaduct, outline the corresponding outlines of the bases, and then construct a three-dimensional coordinate system for the bases of the viaduct; S52: Arrange detection points on each base of the viaduct according to a preset distance interval, and number each detection point as 1, 2, ..., j, ..., r, and then obtain the construction three-dimensional coordinates of each detection point corresponding to each base of the viaduct; S53: Compare the construction three-dimensional coordinates of each inspection point corresponding to each base of the viaduct with the design three-dimensional coordinates of each inspection point corresponding to each base, and calculate the construction rationality evaluation coefficient corresponding to the base of the viaduct, the calculation formula of which is: Where β represents the construction rationality evaluation coefficient corresponding to the viaduct’s base, x k0 j 、y k0 j and z k0 j They are respectively represented as the design three-dimensional coordinate values ​​of the k-th base corresponding to the j-th detection point, x kj ′、y kj ′ and z kj ′ respectively represent the three-dimensional coordinate values ​​of the construction of the j-th detection point corresponding to the k-th base of the viaduct.

6. The urban road model establishment and analysis method according to claim 5, characterized in that: In step S6, the rationality evaluation coefficient of the appearance construction of the viaduct is obtained by analysis, and the specific process is as follows: S61: Comparing the construction 3D appearance image corresponding to the viaduct with the design 3D appearance image of the viaduct, thereby extracting appearance defect areas corresponding to the viaduct and numbering them as 1, 2, ..., p, ..., w, respectively, and then extracting the appearance defect type and appearance defect area of ​​each appearance defect area; S62: Match the appearance defect type corresponding to each appearance defect area of ​​the viaduct with the preset evaluation impact factor per unit area of ​​each appearance defect type, and obtain the evaluation impact factor per unit area of ​​the appearance defect type corresponding to each appearance defect area of ​​the viaduct, and then calculate the evaluation coefficient of the rationality of the appearance construction of the viaduct based on the evaluation factor. The calculation formula is: ζ is the evaluation coefficient of the rationality of the appearance construction of the viaduct, D p and κ p ″ respectively represent the appearance defect area of ​​the viaduct corresponding to the p-th appearance defect area and the evaluation impact factor per unit area of ​​the appearance defect type.

7. The urban road model establishment and analysis method according to claim 6, characterized in that: In step S7, the comprehensive evaluation coefficient of the rationality of the viaduct construction is obtained by analysis, and the specific calculation formula is: Where ψ represents the comprehensive evaluation coefficient of the rationality of the viaduct construction, and b1, b2, b3 and b4 represent the rationality evaluation weight coefficients corresponding to the preset abutments, support frames, bases and appearances of the viaduct, respectively.

8. The urban road model establishment and analysis method according to claim 1, characterized in that: In step S8, a comprehensive management early warning is carried out on the rationality of the construction of the viaduct, and the specific process is: comparing the comprehensive evaluation coefficient of the rationality of the viaduct construction with the set comprehensive evaluation coefficient of the rationality standard of the viaduct construction. If the comprehensive evaluation coefficient of the rationality of the viaduct construction is lower than the comprehensive evaluation coefficient of the rationality standard of the viaduct construction, an early warning of unreasonable viaduct construction is issued.

9. An urban road model establishment and analysis system, characterized in that: include: Viaduct design basic parameter information extraction module: used to extract the corresponding basic design parameter information of the viaduct based on the designed three-dimensional model of the viaduct; The viaduct model construction equipment setting module is used to use a cruise drone as the main model construction equipment. By installing a lidar scanner in the cruise drone, the completed viaduct is scanned to construct a three-dimensional model of the viaduct. Viaduct abutment construction information analysis module: This module is used to identify the abutments of the viaduct based on the 3D model of the viaduct, extract the total construction length of the abutments, and divide the abutments into several sub-areas of the viaduct. These sub-areas are numbered 1, 2, ..., i, ..., q, and the corresponding construction width of each abutment sub-area is extracted. This analysis is used to determine the construction rationality evaluation coefficient of the abutments of the viaduct. Viaduct support frame construction information analysis module: This module is used to identify the viaduct's support frames based on the viaduct's 3D model and number them as 1, 2, ..., m, ..., v. It then extracts the corresponding construction placement angle and height of each support frame, thereby analyzing and deriving the construction rationality evaluation coefficient of each support frame. The viaduct base construction information analysis module is used to identify the viaduct bases based on the viaduct's 3D model and number them as 1, 2, ..., k, ..., n. The module then extracts the corresponding 3D images of the viaduct bases and analyzes them to obtain the construction rationality evaluation coefficients for the viaduct bases. The viaduct appearance construction information analysis module is used to extract the corresponding three-dimensional appearance image of the viaduct based on the three-dimensional model of the viaduct, and thus obtain the rationality evaluation coefficient of the viaduct appearance construction; Comprehensive evaluation module for the rationality of viaduct construction: This module is used to analyze and obtain the comprehensive evaluation coefficient of the rationality of viaduct construction based on the construction rationality evaluation coefficients of the viaduct's abutments, the construction rationality evaluation coefficients corresponding to the viaduct's support frames, the construction rationality evaluation coefficients corresponding to the viaduct's bases, and the construction rationality evaluation coefficients of the viaduct's exterior appearance. Comprehensive management and early warning module for the rationality of viaduct construction: used to conduct comprehensive management and early warning on the rationality of viaduct construction based on the comprehensive evaluation coefficient of the rationality of viaduct construction.

10. A storage medium for establishing and analyzing an urban road model, characterized by: The storage medium is burned with a computer program, and when the computer program is run in the memory of the server, the method for establishing and analyzing an urban road model according to any one of claims 1 to 8 is implemented.

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