A tunnel safety monitoring method and system based on BIM technology

Abstract

The present invention discloses a tunnel safety monitoring method and system based on BIM technology, and relates to the field of tunnel safety monitoring. The tunnel safety monitoring method based on BIM technology divides the monitored tunnel into regions based on a preset distance, obtains several monitoring regions of the monitored tunnel, and obtains tunnel image data of each monitoring region in real time, and performs conversion processing to obtain a tunnel three-dimensional data set; the environmental data of the corresponding monitoring region is obtained in real time, and a comprehensive analysis is performed with the tunnel three-dimensional data set to obtain a tunnel comprehensive safety index of each monitoring region of the monitored tunnel. The present invention combines BIM technology with the tunnel three-dimensional data set of the monitored tunnel and the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring region to establish a tunnel twin model, and displays it in real time, so as to comprehensively evaluate the safety status of the tunnel, thereby improving the accuracy of the safety assessment.

Description

Technical Field

[0001] The present invention relates to the field of tunnel safety monitoring, and in particular to a tunnel safety monitoring method and system based on BIM technology. Background Art

[0002] BIM technology, or building information modeling technology, is a technical means of managing the entire process of design, construction, and operation of buildings through digital models. BIM technology can integrate various types of building information, including structure, electromechanical equipment, building materials, process flow, etc., to form an integrated, information-based three-dimensional model. In recent years, with the advancement of urbanization, the scale and number of tunnel construction have continued to increase, and tunnel safety issues have become increasingly prominent. In tunnel engineering, BIM technology can realize three-dimensional visual design of tunnels, monitor the operating status of tunnels, provide data support for maintenance work, and ensure the safe operation of tunnels.

[0003] However, in traditional tunnel safety monitoring, most of them are based on periodic inspections or regularly updated data, which makes it difficult to achieve real-time data collection and analysis. When safety problems occur in the tunnel, it is difficult to respond immediately and make decisions. At the same time, multi-dimensional safety assessments are not conducted, which makes it easy to ignore potential hidden dangers.

[0004] Based on the above solution, it is found that the limitations of the existing technology include at least the following problems. First, it is difficult for the existing technology to achieve real-time data collection and analysis, and thus it is difficult to respond immediately. Second, the existing technology lacks deep data fusion and multi-dimensional safety assessment, making it difficult to accurately and comprehensively assess the comprehensive safety status of the tunnel, and thus it is easy to ignore potential hidden dangers. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a tunnel safety monitoring method and system based on BIM technology, which solves the problems that the prior art is difficult to respond immediately and difficult to accurately and comprehensively evaluate the comprehensive safety status of the tunnel.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tunnel safety monitoring method based on BIM technology, comprising the following steps: dividing the monitored tunnel into regions based on a preset distance to obtain a number of monitoring regions of the monitored tunnel, and acquiring tunnel image data of each monitoring region of the monitored tunnel in real time, and performing preprocessing; transforming the preprocessed tunnel image data of each monitoring region of the monitored tunnel to obtain a tunnel three-dimensional data set of each monitoring region of the monitored tunnel; acquiring the environmental data of each monitoring region of the monitored tunnel in real time, and performing data analysis with the tunnel three-dimensional data set respectively to obtain the environmental safety index, equipment safety index, and structural safety index of each monitoring region of the monitored tunnel, and performing comprehensive analysis to obtain the tunnel comprehensive safety index of each monitoring region of the monitored tunnel; and combining BIM technology with the tunnel three-dimensional data set of the monitored tunnel and the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring region to establish a tunnel twin model, and display it in real time.

[0007] Furthermore, the tunnel image data specifically includes the pixel value, two-dimensional coordinates and depth information value of each pixel point in the tunnel image, the tunnel three-dimensional data set specifically includes the three-dimensional coordinates and voxel value of each voxel point, and the environmental data includes temperature value, humidity value, carbon monoxide concentration value, carbon dioxide concentration value, methane concentration value, nitrogen oxide concentration value, hydrogen sulfide concentration value, and ammonia concentration value.

[0008] Furthermore, the specific steps for obtaining the image data set of each monitoring area of ​​the tunnel to be monitored are as follows: coordinate system conversion processing is performed on the two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored to obtain the converted two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored; and the converted two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored are identified and analyzed to obtain a number of overlapping pixels and a number of non-overlapping pixels of each monitoring area of ​​the tunnel to be monitored, and the pixel values ​​of each overlapping pixel point of each monitoring area of ​​the tunnel to be monitored are weighted and analyzed to obtain the comprehensive pixel value of each overlapping pixel point of each monitoring area of ​​the tunnel to be monitored; the comprehensive pixel value, converted two-dimensional coordinates of each overlapping pixel point of each monitoring area of ​​the tunnel to be monitored, and the pixel value and converted two-dimensional coordinates of each non-overlapping pixel point are marked as the pixel value and converted two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored; the converted two-dimensional coordinates, depth information value and pixel value of each pixel point of each monitoring area of ​​the tunnel to be monitored are respectively comprehensively analyzed to obtain the three-dimensional coordinates and voxel value of each voxel point of each monitoring area of ​​the tunnel to be monitored, that is, the three-dimensional data set of the tunnel.

[0009] Furthermore, the specific steps for obtaining the equipment safety index of each monitoring area of ​​the tunnel to be monitored are as follows: identifying and analyzing the voxel value of each voxel point of each monitoring area of ​​the tunnel to be monitored, and obtaining a number of equipment voxel points of each monitoring area of ​​the tunnel to be monitored; and performing regional connectivity processing on each road voxel point of each monitoring area of ​​the tunnel to be monitored, and obtaining a number of equipment areas of each monitoring area of ​​the tunnel to be monitored; and comprehensively analyzing the voxel values ​​of each equipment voxel point of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored, and obtaining the equipment integrity index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored; and comprehensively analyzing the three-dimensional coordinates of each equipment voxel point of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored, and obtaining the equipment bending index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored; and comprehensively analyzing the equipment integrity index and equipment bending index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored, and obtaining the equipment safety index of each monitoring area of ​​the tunnel to be monitored.

[0010] Furthermore, the specific steps for the environmental safety index of each monitoring area of ​​the tunnel to be monitored are as follows: obtain the temperature reference value, humidity reference value, carbon monoxide concentration reference value, carbon dioxide concentration reference value, methane concentration reference value, nitrogen oxide concentration reference value, hydrogen sulfide concentration reference value, and ammonia concentration reference value of the tunnel to be monitored; and conduct a comprehensive analysis of the temperature reference value, humidity reference value, carbon monoxide concentration reference value, carbon dioxide concentration reference value, methane concentration reference value, nitrogen oxide concentration reference value, hydrogen sulfide concentration reference value, and ammonia concentration reference value of the tunnel to be monitored, as well as the temperature value, humidity value, carbon monoxide concentration value, carbon dioxide concentration value, methane concentration value, nitrogen oxide concentration value, hydrogen sulfide concentration value, and ammonia concentration value of each monitoring area to obtain the environmental safety index of each monitoring area of ​​the tunnel to be monitored.

[0011] Furthermore, the specific steps for establishing the tunnel twin model are as follows: input the three-dimensional coordinates of each voxel point in each monitoring area of ​​the tunnel to be monitored into the BIM software to establish a three-dimensional model of the tunnel; and mark the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring area as the tunnel comprehensive safety label, equipment safety label, structural safety label, and environmental safety label of the corresponding tunnel three-dimensional model, and establish an interactive data panel; and establish an interactive link between the interactive data panel and the tunnel three-dimensional model to generate a tunnel twin model.

[0012] Furthermore, the specific steps of real-time display are as follows: compare and analyze the comprehensive tunnel safety index of each monitoring area of ​​the tunnel to be monitored with the preset safety index threshold. If the comprehensive tunnel safety index of the monitoring area of ​​the tunnel to be monitored is lower than or equal to the preset safety index threshold, it is marked as an abnormal area and displayed in red in the tunnel twin model; if the comprehensive tunnel safety index of the monitoring area of ​​the tunnel to be monitored is higher than the preset safety index threshold, it is marked as a safe area and displayed in green in the tunnel twin model.

[0013] A tunnel safety monitoring system based on BIM technology, comprising: a data acquisition module, a conversion processing module, a comprehensive analysis module, and a real-time display module; the data acquisition module is used to divide the monitored tunnel into regions based on a preset distance, obtain a plurality of monitoring regions of the monitored tunnel, and obtain tunnel image data of each monitoring region of the monitored tunnel in real time and perform preprocessing; the conversion processing module is used to perform conversion processing on the preprocessed tunnel image data of each monitoring region of the monitored tunnel to obtain a tunnel three-dimensional data set of each monitoring region of the monitored tunnel; the comprehensive analysis module is used to obtain the environmental data of each monitoring region of the monitored tunnel in real time, and perform data analysis with the tunnel three-dimensional data set respectively to obtain the environmental safety index, equipment safety index, and structural safety index of each monitoring region of the monitored tunnel, and perform comprehensive analysis to obtain the tunnel comprehensive safety index of each monitoring region of the monitored tunnel; the real-time display module is used to combine the BIM technology with the tunnel three-dimensional data set of the monitored tunnel and the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring region to establish a tunnel twin model, and perform real-time display

[0014] The present invention has the following beneficial effects:

[0015] (1) The tunnel safety monitoring method based on BIM technology acquires tunnel images and environmental data in real time, thereby analyzing the safety situation in each monitoring area of ​​the tunnel in real time, so that management personnel can respond promptly at the early stage of an abnormality, thereby reducing the risk of accidents caused by slow response and improving the safety level of the tunnel.

[0016] (2) This tunnel safety monitoring method based on BIM technology combines multi-dimensional data analysis of equipment safety, structural safety and environmental safety, so as to comprehensively and accurately evaluate the safety status of the tunnel and promptly discover potential safety hazards, thereby improving the accuracy and comprehensiveness of the safety assessment and reducing the blind spots of potential risks.

[0017] (3) The tunnel safety monitoring system based on BIM technology provides a scientific basis for tunnel maintenance and emergency decision-making by real-time monitoring and dynamic updating of the tunnel's safety status, thereby improving the accuracy and response speed of tunnel safety risk warnings, thereby effectively reducing the risk of accidents and ensuring the safety of personnel and equipment.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a flow chart of the tunnel safety monitoring method based on BIM technology.

[0020] Figure 2 The present invention is a flowchart of the steps of obtaining an image data set of each monitoring area of ​​a tunnel to be monitored in the tunnel safety monitoring method based on BIM technology of the present invention.

[0021] Figure 3 This is a block diagram of a tunnel safety monitoring system based on BIM technology in the present invention. DETAILED DESCRIPTION

[0022] The overall idea of ​​the problem in the embodiment of this application is as follows:

[0023] Firstly, the monitored tunnel is divided into several monitoring areas based on the preset distance, and the tunnel image data is acquired in real time and converted to obtain a tunnel three-dimensional data set of each monitoring area of ​​the tunnel to be monitored. Then, the environmental data of each monitoring area of ​​the tunnel to be monitored is acquired in real time, and the environmental data are analyzed separately with the tunnel three-dimensional data set to obtain the environmental safety index, equipment safety index and structural safety index of each monitoring area of ​​the tunnel to be monitored. A comprehensive analysis is performed to obtain the tunnel comprehensive safety index of each monitoring area of ​​the tunnel to be monitored. In addition, a tunnel twin model is established by combining BIM technology with the tunnel three-dimensional data set of the tunnel to be monitored, and displayed in real time.

[0024] See also Figure 1The embodiment of the present invention provides a technical solution: a tunnel safety monitoring method based on BIM technology, comprising the following steps: dividing the tunnel to be monitored into regions based on a preset distance to obtain a plurality of monitoring regions of the tunnel to be monitored, and obtaining tunnel image data of each monitoring region of the tunnel to be monitored in real time, and performing preprocessing; transforming the tunnel image data of each monitoring region of the tunnel to be monitored after preprocessing to obtain a tunnel three-dimensional data set of each monitoring region of the tunnel to be monitored; obtaining the environmental data of each monitoring region of the tunnel to be monitored in real time, and performing data analysis with the tunnel three-dimensional data set respectively to obtain the environmental safety index, equipment safety index, and structural safety index of each monitoring region of the tunnel to be monitored, and performing comprehensive analysis to obtain the tunnel comprehensive safety index of each monitoring region of the tunnel to be monitored; and combining BIM technology with the tunnel three-dimensional data set of the tunnel to be monitored and the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring region to establish a tunnel twin model, and display it in real time (and updating the data based on the next real-time acquisition, that is, updating the tunnel twin model).

[0025] The tunnel image data specifically includes the pixel value, two-dimensional coordinates and depth information value of each pixel point in the tunnel image (with the upper left corner of the tunnel image as the origin of the two-dimensional coordinate system, the horizontal direction as the X-axis, and the vertical direction as the Y-axis). The tunnel three-dimensional data set specifically includes the three-dimensional coordinates and voxel value of each voxel point. The environmental data includes temperature value, humidity value, carbon monoxide concentration value, carbon dioxide concentration value, methane concentration value, nitrogen oxide concentration value, hydrogen sulfide concentration value, and ammonia concentration value.

[0026] The nitrogen oxide concentration value is the average of the sum of the nitrogen monoxide concentration and the nitrogen dioxide concentration in the air at each sampling point in the monitoring area, and both the nitrogen monoxide concentration and the nitrogen dioxide concentration can be obtained by a chemiluminescence sensor.

[0027] Specifically, Figure 2As shown in FIG. 1 , the specific steps of obtaining the image data set of each monitoring area of ​​the tunnel to be monitored are as follows: performing coordinate system conversion processing on the two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored to obtain the converted two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored (that is, the two-dimensional coordinates in a unified two-dimensional coordinate system, and the unified two-dimensional coordinate system takes the midpoint of the tunnel as the origin, and the horizontal direction is the X axis and the vertical direction is the Y axis); and performing identification and analysis on the converted two-dimensional coordinates of each pixel point of each monitoring area of ​​the tunnel to be monitored to obtain a number of overlapping pixel points and a number of non-overlapping pixel points of each monitoring area of ​​the tunnel to be monitored, and performing weighted analysis on the pixel values ​​of each overlapping pixel point of each monitoring area of ​​the tunnel to be monitored to obtain the image data set of each monitoring area of ​​the tunnel to be monitored. the integrated pixel value of each overlapping pixel point in each monitoring area of ​​the tunnel to be monitored; the integrated pixel value and converted two-dimensional coordinates of each overlapping pixel point in each monitoring area of ​​the tunnel to be monitored, as well as the pixel value and converted two-dimensional coordinates of each non-overlapping pixel point, are marked as the pixel value and converted two-dimensional coordinates of each pixel point in each monitoring area of ​​the tunnel to be monitored; the converted two-dimensional coordinates, depth information value and pixel value of each pixel point in each monitoring area of ​​the tunnel to be monitored are comprehensively analyzed respectively to obtain the three-dimensional coordinates (the three-dimensional coordinate system takes the midpoint of the tunnel as the origin, the direction from the tunnel entrance to the exit as the X-axis, the direction perpendicular to the length of the tunnel as the Y-axis, and the height direction of the tunnel as the Z-axis) and voxel value of each voxel point in each monitoring area of ​​the tunnel to be monitored, that is, the three-dimensional data set of the tunnel.

[0028] In this implementation scheme, the two-dimensional coordinates of each pixel point of the tunnel to be monitored are converted into a unified coordinate system to ensure that all image data are processed under the same coordinate system, thereby reducing coordinate deviations and errors, and then improving data consistency and accuracy. Secondly, by comprehensively analyzing the two-dimensional coordinates, depth information and pixel values, the three-dimensional coordinates and voxel values ​​of the voxel points in each monitoring area are obtained, thereby converting each monitoring area of ​​the tunnel into a complete three-dimensional data set to support subsequent safety analysis, risk assessment and virtual display. Finally, through this meticulous coordinate conversion and comprehensive analysis steps, more accurate three-dimensional structural information can be efficiently extracted from the two-dimensional image data, thereby improving the data processing speed, and can obtain more accurate and efficient tunnel status assessment in real time in actual monitoring, providing a more reliable basis for tunnel management and maintenance.

[0029] Specifically, the specific steps for obtaining the equipment safety index of each monitoring area of ​​the tunnel to be monitored are as follows: identify and analyze the voxel value of each voxel point of each monitoring area of ​​the tunnel to be monitored to obtain a number of equipment voxel points of each monitoring area of ​​the tunnel to be monitored; perform regional connectivity processing on each road voxel point of each monitoring area of ​​the tunnel to be monitored to obtain a number of equipment areas of each monitoring area of ​​the tunnel to be monitored; comprehensively analyze the voxel values ​​of each equipment voxel point of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored to obtain the equipment integrity index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored; comprehensively analyze the three-dimensional coordinates of each equipment voxel point of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored to obtain the equipment bending index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored; comprehensively analyze the equipment integrity index and equipment bending index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored to obtain the equipment safety index of each monitoring area of ​​the tunnel to be monitored.

[0030] The steps for obtaining the structural safety index and the equipment safety index of each monitoring area of ​​each tunnel to be monitored are consistent.

[0031] In this implementation scheme, by identifying and analyzing the voxel value of each voxel point, the voxel points related to the equipment are accurately extracted from each monitoring area of ​​the tunnel to be monitored, thereby ensuring that every detail of the equipment can be accurately captured and analyzed, thereby providing an accurate data basis for the subsequent equipment status evaluation. Secondly, by comprehensively analyzing the voxel values ​​of the equipment voxel points in each equipment area, the equipment integrity index is obtained, and its three-dimensional coordinates are further analyzed to obtain the equipment bending index, so that the status of the equipment can be fully reflected, and the safety of the equipment can be more accurately evaluated. In addition, through a detailed analysis of the equipment, the health status of the equipment can be monitored in real time and potential safety hazards can be discovered in a timely manner. Thereby improving the maintenance efficiency of tunnel equipment, reducing the occurrence of equipment failures, and improving the safety of tunnel operation. Finally, by accurately evaluating the equipment safety index, the equipment maintenance and replacement plan can be reasonably arranged to avoid excessive maintenance or ignoring potential failures, thereby saving costs and ensuring the safety of tunnel operation.

[0032] Specifically, the specific steps for obtaining the environmental safety index of each monitoring area of ​​the tunnel to be monitored are as follows: obtaining the temperature reference value, humidity reference value, carbon monoxide concentration reference value, carbon dioxide concentration reference value, methane concentration reference value, nitrogen oxide concentration reference value, hydrogen sulfide concentration reference value, and ammonia concentration reference value of the tunnel to be monitored; and conducting a comprehensive analysis of the temperature reference value, humidity reference value, carbon monoxide concentration reference value, carbon dioxide concentration reference value, methane concentration reference value, nitrogen oxide concentration reference value, hydrogen sulfide concentration reference value, and ammonia concentration reference value of the tunnel to be monitored as well as the temperature value, humidity value, carbon monoxide concentration value, carbon dioxide concentration value, methane concentration value, nitrogen oxide concentration value, hydrogen sulfide concentration value, and ammonia concentration value of each monitoring area to obtain the environmental safety index of each monitoring area of ​​the tunnel to be monitored.

[0033] In this implementation plan, by considering multiple environmental variables, the environmental conditions in the tunnel are comprehensively evaluated, thereby ensuring that the assessment of the environmental safety index is more accurate, and further reflecting the various environmental factors in the tunnel that may affect personnel safety, normal operation of equipment and structural stability. 2 Secondly, the actual environmental data in the tunnel is compared with the preset reference values, which helps to promptly discover the deviation of environmental parameters from safety standards, provide early warning for potential risks, and take countermeasures in advance. Finally, by combining and analyzing multiple environmental parameters, the environmental conditions of each monitoring area of ​​the tunnel can be obtained in real time, thereby improving the comprehensive analysis capability and efficiency of the monitoring system, and avoiding misjudgment or omissions caused by single indicator monitoring.

[0034] Specifically, the specific steps for establishing a tunnel twin model are as follows: input the three-dimensional coordinates of each voxel point in each monitoring area of ​​the tunnel to be monitored into the BIM software to establish a three-dimensional model of the tunnel; and mark the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring area as the tunnel comprehensive safety label, equipment safety label, structural safety label, and environmental safety label of the corresponding tunnel three-dimensional model, and establish an interactive data panel; and establish an interactive link between the interactive data panel and the tunnel three-dimensional model to generate a tunnel twin model.

[0035] In this implementation scheme, the three-dimensional coordinates of each voxel point in each monitoring area of ​​the tunnel to be monitored are input into the BIM software, so as to accurately establish a three-dimensional model of the tunnel, thereby ensuring the high accuracy and integrity of the model, so that the tunnel twin model can accurately reflect the actual structure and status of the tunnel, providing a reliable basis for subsequent monitoring and analysis. Secondly, by associating various safety indexes (such as tunnel comprehensive safety index, equipment safety index, structural safety index, environmental safety index) with corresponding labels, managers can intuitively understand the safety status of each area, helping them to make decisions quickly. Finally, by establishing an interactive data panel and linking it with the three-dimensional model of the tunnel, managers can directly view and operate the safety information of each monitoring area in the model, thereby improving the operability and user experience of the model, and performing dynamic operations and analysis.

[0036] Specifically, the specific steps of real-time display are as follows: the comprehensive tunnel safety index of each monitoring area of ​​the tunnel to be monitored is compared and analyzed with the preset safety index threshold. If the comprehensive tunnel safety index of the monitoring area of ​​the tunnel to be monitored is lower than or equal to the preset safety index threshold, then (the monitoring area) is marked as an abnormal area, and (the monitoring area) is displayed in red in the tunnel twin model (and a warning will be issued to relevant personnel); if the comprehensive tunnel safety index of the monitoring area of ​​the tunnel to be monitored is higher than the preset safety index threshold, then (the monitoring area) is marked as a safe area, and (the monitoring area) is displayed in green in the tunnel twin model.

[0037] In this implementation scheme, by comparing the comprehensive tunnel safety index of each monitoring area with the preset safety threshold, potential safety hazards can be identified in real time, thereby improving the early warning capability and avoiding the spread of risks and the occurrence of potential accidents. Secondly, by directly linking the safety status (safe or abnormal) of the tunnel's monitoring area with color, managers can immediately identify areas that need attention or processing, thereby simplifying the process of information transmission, which in turn helps to make quick decisions in emergencies. Finally, real-time comparative analysis and updated display can ensure the dynamics and adaptability of the tunnel safety monitoring system. As the monitoring data changes, the safety index will also be adjusted accordingly, thereby reflecting the safety status of the tunnel in real time, and managers can view the latest status of the tunnel at any time to ensure that any changes in tunnel operation will not be ignored.

[0038] See also Figure 3The embodiment of the present invention provides a technical solution: a tunnel safety monitoring system based on BIM technology, comprising a data acquisition module, a conversion processing module, a comprehensive analysis module, and a real-time display module; the data acquisition module is used to divide the monitored tunnel into regions based on a preset distance to obtain a plurality of monitoring regions of the monitored tunnel, and to obtain tunnel image data of each monitoring region of the monitored tunnel in real time and perform preprocessing; the conversion processing module is used to perform conversion processing on the preprocessed tunnel image data of each monitoring region of the monitored tunnel to obtain a tunnel three-dimensional data set of each monitoring region of the monitored tunnel; the comprehensive analysis module is used to obtain the environmental data of each monitoring region of the monitored tunnel in real time, and perform data analysis with the tunnel three-dimensional data set respectively to obtain the environmental safety index, equipment safety index, and structural safety index of each monitoring region of the monitored tunnel, and perform comprehensive analysis to obtain the tunnel comprehensive safety index of each monitoring region of the monitored tunnel; the real-time display module is used to combine the BIM technology with the tunnel three-dimensional data set of the monitored tunnel and the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring region to establish a tunnel twin model and perform real-time display.

[0039] In summary, this application has at least the following effects:

[0040] By acquiring images and environmental data of the tunnel in real time, the safety situation can be analyzed in real time in each monitoring area of ​​the tunnel, so that managers can respond promptly at the early stage of abnormalities, thereby reducing the risk of accidents caused by slow response and improving the safety level of the tunnel.

[0041] By combining multi-dimensional data analysis of equipment safety, structural safety and environmental safety, it is possible to comprehensively and accurately assess the safety status of the tunnel and promptly identify potential safety hazards, thereby improving the accuracy and comprehensiveness of the safety assessment and reducing blind spots in potential risks.

[0042] By real-time monitoring and dynamically updating the safety status of the tunnel, a scientific basis is provided for tunnel maintenance and emergency decision-making, thereby improving the accuracy and response speed of tunnel safety risk warnings, thereby effectively reducing the risk of accidents and ensuring the safety of personnel and equipment.

[0043] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A tunnel safety monitoring method based on BIM technology, characterized in that: The following steps are involved: Based on the preset distance, the tunnel to be monitored is divided into several monitoring areas of the tunnel to be monitored, and tunnel image data of each monitoring area of ​​the tunnel to be monitored is obtained in real time and preprocessed; The pre-processed tunnel image data of each monitoring area of ​​the tunnel to be monitored are transformed to obtain a tunnel three-dimensional data set of each monitoring area of ​​the tunnel to be monitored; The environmental data of each monitoring area of ​​the tunnel to be monitored is obtained in real time, and data analysis is performed with the tunnel three-dimensional data set to obtain the environmental safety index, equipment safety index, and structural safety index of each monitoring area of ​​the tunnel to be monitored. A comprehensive analysis is performed to obtain the tunnel comprehensive safety index of each monitoring area of ​​the tunnel to be monitored; By combining BIM technology with the three-dimensional data set of the tunnel to be monitored and the comprehensive tunnel safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring area, a tunnel twin model is established and displayed in real time.

2. The tunnel safety monitoring method based on BIM technology according to claim 1 is characterized in that: The tunnel image data specifically includes the pixel value, two-dimensional coordinates and depth information value of each pixel point in the tunnel image; the tunnel three-dimensional data set specifically includes the three-dimensional coordinates and voxel value of each voxel point; and the environmental data includes temperature value, humidity value, carbon monoxide concentration value, carbon dioxide concentration value, methane concentration value, nitrogen oxide concentration value, hydrogen sulfide concentration value and ammonia concentration value.

3. The tunnel safety monitoring method based on BIM technology according to claim 2 is characterized in that: The specific steps for obtaining the image data set of each monitoring area of ​​the tunnel to be monitored are as follows: Performing coordinate system conversion processing on the two-dimensional coordinates of each pixel point in each monitoring area of ​​the tunnel to be monitored, to obtain the converted two-dimensional coordinates of each pixel point in each monitoring area of ​​the tunnel to be monitored; The converted two-dimensional coordinates of each pixel point in each monitoring area of ​​the monitored tunnel are identified and analyzed to obtain a number of overlapping pixel points and a number of non-overlapping pixel points in each monitoring area of ​​the monitored tunnel, and the pixel values ​​of each overlapping pixel point in each monitoring area of ​​the monitored tunnel are weighted and analyzed to obtain a comprehensive pixel value of each overlapping pixel point in each monitoring area of ​​the monitored tunnel; The integrated pixel value and converted two-dimensional coordinate of each overlapping pixel point of each monitoring area of ​​the tunnel to be monitored and the pixel value and converted two-dimensional coordinate of each non-overlapping pixel point are marked as the pixel value and converted two-dimensional coordinate of each pixel point of each monitoring area of ​​the tunnel to be monitored; The converted two-dimensional coordinates, depth information values ​​and pixel values ​​of each pixel point in each monitoring area of ​​the monitored tunnel are comprehensively analyzed to obtain the three-dimensional coordinates and voxel values ​​of each voxel point in each monitoring area of ​​the monitored tunnel, that is, the tunnel three-dimensional data set.

4. The tunnel safety monitoring method based on BIM technology according to claim 2 is characterized in that: The specific steps for obtaining the equipment safety index of each monitoring area of ​​the tunnel to be monitored are as follows: Identify and analyze the voxel value of each voxel point in each monitoring area of ​​the tunnel to be monitored, and obtain a number of equipment voxel points in each monitoring area of ​​the tunnel to be monitored; And perform regional connectivity processing on each road voxel point in each monitoring area of ​​the tunnel to be monitored, so as to obtain a plurality of equipment areas in each monitoring area of ​​the tunnel to be monitored; And comprehensively analyze the voxel value of each equipment voxel point of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored to obtain the equipment integrity index of each equipment area of ​​each monitoring area of ​​the tunnel to be monitored; And comprehensively analyze the three-dimensional coordinates of each device voxel point of each device area of ​​each monitoring area of ​​the tunnel to be monitored to obtain the device bending index of each device area of ​​each monitoring area of ​​the tunnel to be monitored; A comprehensive analysis is performed on the equipment integrity index and equipment bending index of each equipment area in each monitoring area of ​​the tunnel to be monitored to obtain the equipment safety index of each monitoring area of ​​the tunnel to be monitored.

5. The tunnel safety monitoring method based on BIM technology according to claim 2 is characterized in that: The specific steps for the environmental safety index of each monitoring area of ​​the tunnel to be monitored are as follows: Obtain the temperature reference value, humidity reference value, carbon monoxide concentration reference value, carbon dioxide concentration reference value, methane concentration reference value, nitrogen oxide concentration reference value, hydrogen sulfide concentration reference value, and ammonia concentration reference value of the tunnel to be monitored; A comprehensive analysis is conducted on the temperature reference value, humidity reference value, carbon monoxide concentration reference value, carbon dioxide concentration reference value, methane concentration reference value, nitrogen oxide concentration reference value, hydrogen sulfide concentration reference value, and ammonia concentration reference value of the monitored tunnel, as well as the temperature values, humidity values, carbon monoxide concentration values, carbon dioxide concentration values, methane concentration values, nitrogen oxide concentration values, hydrogen sulfide concentration values, and ammonia concentration values ​​of each monitoring area to obtain the environmental safety index of each monitoring area of ​​the monitored tunnel.

6. The tunnel safety monitoring method based on BIM technology according to claim 1 is characterized in that: The specific steps to establish the tunnel twin model are as follows: Input the three-dimensional coordinates of each voxel point in each monitoring area of ​​the tunnel to be monitored into the BIM software to establish a three-dimensional model of the tunnel; The tunnel comprehensive safety index, equipment safety index, structure safety index, and environmental safety index of each monitoring area are marked as the tunnel comprehensive safety label, equipment safety label, structure safety label, and environmental safety label of the corresponding tunnel 3D model, and an interactive data panel is established; The interactive data panel is interactively linked with the tunnel 3D model to generate a tunnel twin model.

7. The tunnel safety monitoring method based on BIM technology according to claim 1 is characterized in that: The specific steps for real-time display are as follows: The tunnel comprehensive safety index of each monitoring area of ​​the tunnel to be monitored is compared and analyzed with the preset safety index threshold. If the tunnel comprehensive safety index of the monitoring area of ​​the tunnel to be monitored is lower than or equal to the preset safety index threshold, it is marked as an abnormal area and displayed in red in the tunnel twin model; If the comprehensive tunnel safety index of the monitoring area of ​​the tunnel to be monitored is higher than the preset safety index threshold, it will be marked as a safe area and displayed in green in the tunnel twin model.

8. A tunnel safety monitoring system based on BIM technology, applying the tunnel safety monitoring method based on BIM technology according to any one of claims 1 to 7, characterized in that: include: Data acquisition module, conversion processing module, comprehensive analysis module, real-time display module; The data acquisition module is used to divide the monitored tunnel into regions based on a preset distance to obtain a plurality of monitoring regions of the monitored tunnel, and to acquire tunnel image data of each monitoring region of the monitored tunnel in real time and perform preprocessing; The conversion processing module is used to convert the pre-processed tunnel image data of each monitoring area of ​​the tunnel to be monitored to obtain a tunnel three-dimensional data set of each monitoring area of ​​the tunnel to be monitored; The comprehensive analysis module is used to obtain the environmental data of each monitoring area of ​​the tunnel to be monitored in real time, and perform data analysis with the tunnel three-dimensional data set to obtain the environmental safety index, equipment safety index, and structural safety index of each monitoring area of ​​the tunnel to be monitored, and perform comprehensive analysis to obtain the tunnel comprehensive safety index of each monitoring area of ​​the tunnel to be monitored; The real-time display module is used to combine BIM technology with the tunnel three-dimensional data set of the tunnel to be monitored and the tunnel comprehensive safety index, equipment safety index, structural safety index, and environmental safety index of each monitoring area to establish a tunnel twin model and display it in real time.

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