Foundation pit deformation monitoring system, foundation pit deformation monitoring method, equipment and medium

Abstract

The invention provides a foundation pit deformation monitoring system, a foundation pit deformation monitoring method, equipment and a medium. A data acquisition device acquires current monitoring data of a foundation pit and sends the current monitoring data to a wireless communication module; the wireless communication module sends the received current monitoring data to the deformation monitoring module; when the deformation monitoring module detects that data exceeding a preset threshold exists in the current monitoring data, a surface deformation monitoring point of the foundation pit is determined, a current foundation pit surface image collected by the data collection device based on the surface deformation monitoring point is obtained, and the current deformation condition of the foundation pit is determined based on the current foundation pit surface image; and the current deformation early warning level of the foundation pit is determined based on the current monitoring data and the current deformation condition. By means of the system and method, the accuracy of foundation pit deformation monitoring is improved, meanwhile, real-time early warning of foundation pit deformation is achieved, the quality and safety of a project are ensured, and the complexity of field monitoring data processing is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of foundation pit monitoring, and in particular, to a foundation pit deformation monitoring system, a foundation pit deformation monitoring method, equipment, and a medium. Background Art

[0002] Foundation pit engineering in soft soil areas is a high-risk engineering project, and foundation pit engineering instability occurs frequently. In order to ensure the safety of the foundation pit, it is necessary to monitor in a timely manner and analyze and judge the safety and stability of the support structure.

[0003] Traditional foundation pit deformation monitoring methods mainly rely on manual operation to collect data for the inspection of foundation pit engineering, which cannot achieve automation and is prone to human omissions, measurement errors, and operation safety accidents. And when there are potential safety hazards in the monitoring object, contact-type monitoring point layout is required for conventional monitoring means, which cannot guarantee the safety of the staff. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a foundation pit deformation monitoring system, a foundation pit deformation monitoring method, equipment, and a medium, which adopt visual deformation monitoring technology, and break through the application of high-precision digital image detection technology in the on-line monitoring of civil engineering deformation, improving the accuracy of foundation pit deformation monitoring. At the same time, real-time early warning of foundation pit deformation is realized, ensuring the quality and safety of the project, while greatly reducing the complexity of on-site monitoring data processing and realizing low-cost and high-precision measurement.

[0005] In the first aspect, an embodiment of this application provides a foundation pit deformation monitoring system, which includes a data acquisition device, a wireless communication module, and a deformation monitoring module;

[0006] The data acquisition device is used to collect the current monitoring data of the foundation pit and send the current monitoring data to the wireless communication module; wherein, the current monitoring data includes internal foundation pit monitoring data, external foundation pit monitoring data, visual monitoring data, and environmental monitoring data;

[0007] The wireless communication module is used to send the received current monitoring data to the deformation monitoring module;

[0008] The deformation monitoring module is used to determine the surface deformation monitoring points of the foundation pit when it detects that there is data exceeding the preset threshold in the current monitoring data, obtain the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, determine the current deformation condition of the foundation pit based on the current foundation pit surface image, and determine the current deformation early warning level of the foundation pit based on the current monitoring data and the current deformation condition; wherein, the current deformation condition is no visual deformation or there is visual deformation.

[0009] Further, when the deformation monitoring module is used to determine the surface deformation monitoring points of the foundation pit and obtain the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, the deformation monitoring module is further used to:

[0010] Obtain the three-dimensional spatial position of the monitoring and measuring camera in the data acquisition device at the foundation pit monitoring site;

[0011] Use the three-dimensional spatial position as the center of the surface deformation monitoring point, and generate a monitoring instruction based on the surface deformation monitoring point;

[0012] Send the monitoring instruction to the monitoring and measuring camera, so that the monitoring and measuring camera takes pictures of the surface of the foundation pit based on the monitoring instruction, and obtain the current foundation pit surface image taken by the monitoring and measuring camera.

[0013] Further, when the deformation monitoring module is used to determine the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation situation, the deformation monitoring module is further used to:

[0014] When there is data in the current monitoring data that exceeds the preset threshold and the current deformation situation is without visual apparent damage, determine that the current deformation warning level is a first-level warning;

[0015] When there is data in both the internal monitoring data of the foundation pit and the external monitoring data of the foundation pit that exceeds the preset threshold and the current deformation situation is without visual deformation, determine that the current deformation warning level is a second-level warning;

[0016] When there is data in both the internal monitoring data of the foundation pit and the external monitoring data of the foundation pit that exceeds the preset threshold and the current deformation situation is with visual deformation, determine that the current deformation warning level is a third-level warning.

[0017] Further, when the deformation monitoring module is used to determine the current deformation situation of the foundation pit based on the current foundation pit surface image, the deformation monitoring module is further used to:

[0018] Obtain the original foundation pit surface image of the foundation pit, and determine the first feature area from the original foundation pit surface image;

[0019] Determine the second feature area corresponding to the first feature area from the current foundation pit surface image;

[0020] Compare the first feature area with the second feature area, determine the displacement of each feature point, and calculate whether there is a surface strain distribution of the foundation pit based on the displacement of each feature point;

[0021] If not, it is considered that the current deformation condition of the foundation pit is without visual deformation;

[0022] If it exists, it is considered that the current deformation condition of the foundation pit is with visual deformation.

[0023] Further, before the deformation monitoring module is used to determine the first feature region from the original foundation pit surface image, the deformation monitoring module is further used to:

[0024] Perform image preprocessing on the original foundation pit surface image and the current foundation pit surface image to obtain the processed original foundation pit surface image and the processed current foundation pit surface image; wherein, the image preprocessing includes denoising processing and contrast enhancement processing;

[0025] Determine the processed original foundation pit surface image as the original foundation pit surface image, and determine the processed current foundation pit surface image as the current foundation pit surface image.

[0026] Further, the internal monitoring data of the foundation pit includes deep horizontal displacement data, internal force of the supporting structure, and groundwater level, the visual monitoring data includes cracking data, heaving data, peeling data, soil gushing data, and quicksand data of the structural surface layer of the foundation pit, and the environmental monitoring data includes rainfall, temperature, wind speed, and air pressure of the environment where the foundation pit is located.

[0027] Further, the external monitoring data of the foundation pit includes deformation data of the supporting structure, and the data acquisition device includes a monitoring and measuring camera;

[0028] The monitoring and measuring camera is used to capture the image of the supporting structure of the foundation pit and determine the deformation data of the supporting structure of the foundation pit based on the image of the supporting structure.

[0029] In a second aspect, the embodiment of the present application further provides a method for monitoring the deformation of a foundation pit. The method for monitoring the deformation of a foundation pit is applied to a foundation pit deformation monitoring system. The foundation pit deformation monitoring system includes a data acquisition device, a wireless communication module, and a deformation monitoring module; the method for monitoring the deformation of a foundation pit includes:

[0030] The data acquisition device acquires the current monitoring data of the foundation pit and sends the current monitoring data to the wireless communication module; wherein, the current monitoring data includes internal monitoring data of the foundation pit, external monitoring data of the foundation pit, visual monitoring data, and environmental monitoring data;

[0031] The wireless communication module sends the received current monitoring data to the deformation monitoring module;

[0032] When the deformation monitoring module detects data exceeding a preset threshold in the current monitoring data, it determines the surface deformation monitoring points of the foundation pit, obtains the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, determines the current deformation condition of the foundation pit based on the current foundation pit surface image, and determines the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation condition; wherein, the current deformation condition is no visual deformation or there is visual deformation.

[0033] In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device runs, the processor communicates with the memory through the bus. When the machine-readable instructions are executed by the processor, the steps of the foundation pit deformation monitoring method as described above are executed.

[0034] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is run by a processor, the steps of the foundation pit deformation monitoring method as described above are executed.

[0035] An embodiment of the present application provides a foundation pit deformation monitoring system, a foundation pit deformation monitoring method, a device, and a medium, including a data acquisition device, a wireless communication module, and a deformation monitoring module; the data acquisition device collects the current monitoring data of the foundation pit and sends the current monitoring data to the wireless communication module; wherein, the current monitoring data includes internal foundation pit monitoring data, external foundation pit monitoring data, visual monitoring data, and environmental monitoring data; the wireless communication module sends the received current monitoring data to the deformation monitoring module; when the deformation monitoring module detects data exceeding a preset threshold in the current monitoring data, it determines the surface deformation monitoring points of the foundation pit, obtains the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, determines the current deformation condition of the foundation pit based on the current foundation pit surface image, and determines the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation condition.

[0036] According to the foundation pit deformation monitoring system provided by the present application, visual deformation monitoring technology is adopted, and the deformation condition of the foundation pit surface is determined based on the captured foundation pit surface images and the currently collected monitoring data. Based on the high-precision digital image detection technology, the high-precision digital image detection technology is breakthroughly applied to the on-line monitoring of civil engineering deformation, improving the accuracy of foundation pit deformation monitoring. At the same time, real-time early warning of foundation pit deformation is realized, which is the quality guarantee of visual engineering monitoring technology. It can analyze the deformation monitoring data in real time and determine the current deformation early warning level to achieve the purpose of real-time early warning and ensure the quality and safety of the project. At the same time, it greatly reduces the complexity of on-site monitoring data processing and realizes low-cost and high-precision measurement.

[0037] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 It is a schematic structural diagram of a foundation pit deformation monitoring system provided by an embodiment of the present application;

[0040] Figure 2 It is a schematic hardware structure diagram of a monitoring and measuring camera provided by an embodiment of the present application;

[0041] Figure 3 It is a flowchart of a foundation pit deformation monitoring method provided by an embodiment of the present application;

[0042] Figure 4 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are only a part rather than all of the embodiments of this application. Components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without creative efforts falls within the scope of protection of this application.

[0044] First, the applicable application scenarios of this application are introduced. This application can be applied to the field of foundation pit monitoring technology.

[0045] Foundation pit engineering in soft soil areas is a high-risk engineering project, and foundation pit engineering instability occurs frequently. To ensure the safety of the foundation pit, it is necessary to monitor in a timely manner and analyze and judge the safety and stability of the retaining structure.

[0046] It has been found through research that traditional foundation pit deformation monitoring methods mainly rely on manual operations to collect data for the inspection of foundation pit engineering, which cannot achieve automation and is prone to human omissions in measurement, measurement errors, and operation safety accidents. And when there are potential safety hazards in the monitoring object, conventional monitoring means require the layout of contact monitoring points, which cannot guarantee the safety of the staff.

[0047] Based on this, the embodiments of this application provide a foundation pit deformation monitoring system, which uses visual deformation monitoring technology to improve the accuracy of foundation pit deformation monitoring and simultaneously realizes real-time early warning of foundation pit deformation to ensure the quality and safety of the project.

[0048] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a foundation pit deformation monitoring system provided by the embodiments of this application. As shown in Figure 1 ,the foundation pit deformation monitoring system 100 provided by the embodiments of this application includes a data acquisition device 110, a wireless communication module 120, and a deformation monitoring module 130.

[0049] The data acquisition device 110 is used to collect the current monitoring data of the foundation pit and send the current monitoring data to the wireless communication module.

[0050] Here, the data acquisition device 110 mainly realizes the perception of foundation pit monitoring data. Specifically, the current monitoring data of the foundation pit includes internal foundation pit monitoring data, external foundation pit monitoring data, visual monitoring data, and environmental monitoring data.

[0051] Specifically, according to the embodiments provided in the present application, the internal monitoring data of the foundation pit includes deep horizontal displacement data, internal force of the supporting structure, and groundwater level. The visual monitoring data includes cracking data, heaving data, peeling data, soil gushing data, and quicksand data of the structural surface layer of the foundation pit. The environmental monitoring data includes rainfall, temperature, wind speed, and air pressure of the environment where the foundation pit is located.

[0052] Furthermore, the data acquisition device 110 includes an inclinometer, a stress sensor, and a vibrating wire piezometer. The inclinometer is used to detect the deep horizontal displacement data of the foundation pit, and the stress sensor is used to detect the internal force of the supporting structure of the foundation pit. The vibrating wire piezometer is used to detect the groundwater level of the foundation pit. The data acquisition device 110 also includes a rainfall sensor, a temperature sensor, a wind speed sensor, and an air pressure sensor. The rainfall sensor is used to detect the rainfall of the environment where the foundation pit is located. The temperature sensor is used to detect the temperature of the environment where the foundation pit is located. The wind speed sensor is used to detect the wind speed of the environment where the foundation pit is located. The air pressure sensor is used to detect the air pressure of the environment where the foundation pit is located. The visual monitoring data can be collected by a monitoring and measuring camera.

[0053] Specifically, according to the embodiments provided in the present application, the external monitoring data of the foundation pit includes the deformation data of the supporting structure, and the data acquisition device includes a monitoring and measuring camera.

[0054] The monitoring and measuring camera is used to capture the image of the supporting structure of the foundation pit and determine the deformation data of the supporting structure of the foundation pit based on the image of the supporting structure.

[0055] Please refer to Figure 2 , Figure 2 which is a schematic hardware structure diagram of a monitoring and measuring camera provided by an embodiment of the present application. As Figure 2 shown, the monitoring and measuring camera includes a high-precision laser rangefinder, a high-variation high-resolution camera, a high-precision two-axis electric pan-tilt, a base, and an observation pier / support / tripod; the high-precision laser rangefinder and the high-variation high-resolution camera are installed on the high-precision two-axis electric pan-tilt, and a base is installed on the top of the observation pier / support / tripod, and the high-precision two-axis electric pan-tilt is installed on the base.

[0056] Here, in specific implementation, the monitoring and measuring camera captures the image of the supporting structure of the foundation pit, uses video image features, a high-precision point pan-tilt, and a grating code disk to achieve ATR automatic aiming, monitors the coordinate changes of the supporting structure in the XYZ three axes, and combines the image recognition deep learning algorithm to identify the visual feature points of the foundation pit as monitoring points, records the original image of the supporting structure, and automatically cruises, tracks, and accurately follows and aims; automatically checks the positioning accuracy and automatically collects the coordinate data of the monitoring points to determine the deformation data of the supporting structure of the foundation pit.

[0057] The wireless communication module 120 is configured to send the received current monitoring data to the deformation monitoring module.

[0058] Here, the wireless communication module 120 mainly realizes the transmission of monitoring data. Specifically, the wireless communication module 120 is connected to the data acquisition device 110. In a specific implementation, the wireless communication module 120 sends the current monitoring data transmitted by the data acquisition device 110 to the deformation monitoring module 130, so that the deformation monitoring module 130 can perform deformation monitoring on the foundation pit.

[0059] The deformation monitoring module 130 is configured to, when detecting that there is data exceeding a preset threshold in the current monitoring data, determine the surface deformation monitoring points of the foundation pit, obtain the current foundation pit surface image collected by the data acquisition device 110 based on the surface deformation monitoring points, determine the current deformation condition of the foundation pit based on the current foundation pit surface image, and determine the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation condition.

[0060] Here, the deformation monitoring module 130 is mainly used to monitor the deformation of the foundation pit and determine the current deformation warning level of the foundation pit.

[0061] Here, in a specific implementation, after receiving the current monitoring data transmitted by the wireless communication module 120, the deformation monitoring module 130 first performs data comparison. The deformation monitoring module 130 compares the current monitoring data with a preset monitoring threshold. If the current monitoring data does not exceed the preset threshold, it is considered that there is no deformation in the current foundation pit, and a corresponding monitoring report is generated using the current monitoring data. If there is data in the current monitoring data that exceeds the preset threshold, emergency data collection is performed, the surface deformation monitoring points of the foundation pit are determined, and the current foundation pit surface image collected by the data acquisition device 110 based on the surface deformation monitoring points is obtained synchronously. Here, the current foundation pit surface image is captured by the monitoring and measuring camera in the data acquisition device 110. Then the deformation monitoring module 130 determines the current deformation condition of the foundation pit according to the obtained current foundation pit surface image. Here, according to the embodiments provided in the present application, the current deformation condition is no visual deformation or there is visual deformation. Finally, the current deformation warning level of the foundation pit is determined based on the current monitoring data and the current deformation condition. At the same time, the deformation monitoring module 130 increases the acquisition frequency of the data acquisition device 110 for the current foundation pit surface image to accurately monitor the deformation of the foundation pit.

[0062] In this way, the deformation monitoring module 130 in the present application adopts visual deformation monitoring technology, which is a non-contact, non-interfering, full-field deformation measurement method based on the principles of computer vision, digital image processing, and numerical calculation. The principle of visual deformation monitoring technology stems from digital image correlation (DIC) processing. As a visual measurement technology, it determines the deformation condition of the foundation pit surface based on the captured images of the foundation pit surface. Based on high-precision digital image detection technology, it breaks through the application of high-precision digital image detection technology in the on-line monitoring of civil engineering deformation. At the same time, it realizes the real-time early warning of the foundation pit deformation, which is the quality guarantee of visual engineering monitoring technology. It can analyze the deformation monitoring data in real time and determine the current deformation early warning level to achieve the purpose of real-time early warning and ensure the quality and safety of the project. At the same time, it greatly reduces the complexity of on-site monitoring data processing and realizes low-cost and high-precision measurement.

[0063] As an alternative embodiment, when the deformation monitoring module 130 is used to determine the surface deformation monitoring points of the foundation pit and obtain the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, the deformation monitoring module 130 is further configured to:

[0064] A: Obtain the three-dimensional spatial position of the monitoring and measuring camera in the data acquisition device at the foundation pit monitoring site.

[0065] B: Take the three-dimensional spatial position as the center of the surface deformation monitoring point and generate a monitoring instruction based on the surface deformation monitoring point.

[0066] C: Send the monitoring instruction to the monitoring and measuring camera so that the monitoring and measuring camera takes a picture of the surface of the foundation pit based on the monitoring instruction and obtains the current foundation pit surface image captured by the monitoring and measuring camera.

[0067] For the above steps A - C, in specific implementation, when the deformation monitoring module 130 detects that there is data exceeding the preset threshold in the current monitoring data, it obtains the three-dimensional spatial position of the monitoring and measuring camera in the data acquisition device 110 at the foundation pit monitoring site and takes this three-dimensional spatial position as the center of the surface deformation monitoring point. Then the deformation monitoring module 130 generates a monitoring instruction based on this surface deformation monitoring point and sends this monitoring instruction to the monitoring and measuring camera so that the monitoring and measuring camera takes a picture of the surface of the foundation pit based on this monitoring instruction, and at the same time obtains the current foundation pit surface image captured by the monitoring and measuring camera.

[0068] As an alternative embodiment, when the deformation monitoring module 130 is used to determine the current deformation condition of the foundation pit based on the current foundation pit surface image, the deformation monitoring module 130 is further configured to:

[0069] I: Obtain the original foundation pit surface image of the foundation pit, and determine a first feature area from the original foundation pit surface image.

[0070] For the above step I, in specific implementation, the deformation monitoring module 130 obtains the original foundation pit surface image of the foundation pit. Then, feature points are extracted from the original foundation pit surface image, and a first feature area is determined from the original foundation pit surface image. Usually, a grid-like dot matrix is used, and the selection of the feature area should be evenly distributed as much as possible in the entire region of interest.

[0071] As an optional embodiment, before the deformation monitoring module 130 is used to determine a first feature area from the original foundation pit surface image, the deformation monitoring module 130 is further used for:

[0072] Perform image preprocessing on the original foundation pit surface image and the current foundation pit surface image to obtain the processed original foundation pit surface image and the processed current foundation pit surface image; determine the processed original foundation pit surface image as the original foundation pit surface image, and determine the processed current foundation pit surface image as the current foundation pit surface image.

[0073] Here, the image preprocessing includes denoising processing and contrast enhancement processing.

[0074] For the above two steps, in specific implementation, after the deformation monitoring module 130 obtains the original foundation pit surface image, it can also perform image preprocessing on the original foundation pit surface image and the current foundation pit surface image, including denoising processing and contrast enhancement processing, to obtain the processed original foundation pit surface image and the processed current foundation pit surface image, and determine the processed original foundation pit surface image as the original foundation pit surface image, and determine the processed current foundation pit surface image as the current foundation pit surface image. Image denoising processing reduces the noise in the image while trying to retain details as much as possible, and contrast enhancement expands the dynamic range of the image to make details more prominent. In this way, preprocessing the image can significantly improve the image quality and the accuracy of subsequent processing.

[0075] II: Determine a second feature area corresponding to the first feature area from the current foundation pit surface image.

[0076] For the above step II, in specific implementation, after the deformation monitoring module 130 determines a first feature area from the original foundation pit surface image, image matching is performed to find a second feature area corresponding to the first feature area in the original foundation pit surface image in the current foundation pit surface image. Here, a correlation algorithm (such as cross-correlation, normalized cross-correlation, etc.) can be used for matching.

[0077] III: Compare the first feature region with the second feature region to determine the displacement of each feature point, and calculate whether there is a surface strain distribution in the foundation pit based on the displacement of each feature point.

[0078] IV: If not, it is considered that the current deformation condition of the foundation pit is without visual deformation.

[0079] V: If so, it is considered that the current deformation condition of the foundation pit is with visual deformation.

[0080] For the above steps III - V, in specific implementation, compare the first feature region with the second feature region, and calculate the displacement of each feature point by comparing the feature regions before and after deformation. Here, the displacement usually includes translation and rotation in the X and Y directions. Then, calculate whether there is a surface strain distribution in the foundation pit based on the displacement of each feature point. If there is no surface strain distribution, it is considered that the current deformation condition of the foundation pit is without visual deformation. If there is a surface strain distribution, it is considered that the current deformation condition of the foundation pit is with visual deformation.

[0081] As an optional embodiment, when the deformation monitoring module 130 is used to determine the current deformation warning level of the foundation pit based on the current monitoring data and the current surface image of the foundation pit, the deformation monitoring module 130 is further used for:

[0082] i: When there is data in the current monitoring data that exceeds a preset threshold and the current deformation condition is without visual apparent damage, determine that the current deformation warning level is a first-level warning.

[0083] ii: When there is data in both the internal monitoring data and the external monitoring data of the foundation pit that exceeds a preset threshold and the current deformation condition is without visual deformation, determine that the current deformation warning level is a second-level warning.

[0084] iii: When there is data in both the internal monitoring data and the external monitoring data of the foundation pit that exceeds a preset threshold and the current deformation condition is with visual deformation, determine that the current deformation warning level is a third-level warning.

[0085] Here, the deformation monitoring module 130 determines the current deformation warning level of the foundation pit based on the current deformation condition of the foundation pit and the current monitoring data determined in the above steps. For the above steps i - iii, in specific implementation, when there is data exceeding the preset threshold in the current monitoring data of the foundation pit and the current deformation condition of the foundation pit is without visual apparent damage, it is determined that the current deformation warning level of the foundation pit is a first - level warning. When there is data exceeding the preset threshold in both the internal monitoring data and the external monitoring data of the foundation pit and the current deformation condition of the foundation pit is without visual deformation, it is determined that the current deformation warning level of the foundation pit is a second - level warning. When there is data exceeding the preset threshold in both the internal monitoring data and the external monitoring data of the foundation pit and the current deformation condition of the foundation pit is with visual deformation, it is determined that the current deformation warning level of the foundation pit is a third - level warning.

[0086] The foundation pit deformation monitoring system provided by the embodiment of the present application includes a data acquisition device, a wireless communication module, and a deformation monitoring module; the data acquisition device acquires the current monitoring data of the foundation pit and sends the current monitoring data to the wireless communication module; wherein, the current monitoring data includes internal monitoring data of the foundation pit, external monitoring data of the foundation pit, visual monitoring data, and environmental monitoring data; the wireless communication module sends the received current monitoring data to the deformation monitoring module; when the deformation monitoring module detects that there is data exceeding the preset threshold in the current monitoring data, it determines the surface deformation monitoring points of the foundation pit, acquires the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, determines the current deformation condition of the foundation pit based on the current foundation pit surface image, and determines the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation condition; wherein, the current deformation condition is without visual deformation or with visual deformation.

[0087] According to the foundation pit deformation monitoring system provided by the present application, the visual deformation monitoring technology is adopted, and the deformation condition of the foundation pit surface is determined based on the captured foundation pit surface image and the collected current monitoring data. Based on the high - precision digital image detection technology, the high - precision digital image detection technology is breakthroughly applied to the online monitoring of civil engineering deformation, improving the accuracy of foundation pit deformation monitoring. At the same time, real - time warning of foundation pit deformation is realized, which is the quality guarantee of visual engineering monitoring technology. It can perform real - time analysis on deformation monitoring data and determine the current deformation warning level to achieve the purpose of real - time warning and ensure the quality and safety of the project. At the same time, it greatly reduces the complexity of on - site monitoring data processing and realizes low - cost and high - precision measurement.

[0088] Since the data collected by visual deformation monitoring technology are mainly images and videos, it can replace manual visual inspections. Compared with conventional monitoring methods, it has high operation safety. The method of obtaining monitoring data can avoid contact with the monitoring object and effectively solve problems such as operation safety existing in traditional monitoring methods. Compared with traditional deformation monitoring methods, visual deformation monitoring technology has its unique features in the following aspects:

[0089] (1) High-precision and visual measurement are the remarkable advantages of visual deformation monitoring technology. Visual deformation monitoring technology can correct the camera distortion. As long as the on-site conditions meet the requirements, it can accurately locate the target points. Conventional internal force and strain monitoring of structures can only measure a specific point using stress and strain sensors and can only perform one-way measurement, while visual engineering monitoring technology can perform area monitoring on the monitoring object. When the monitoring object deforms and during the development process, using visual deformation monitoring technology can obtain the displacement and image information of the entire deformation process, while traditional deformation measurement methods can only obtain data at a certain time within a fixed monitoring frequency, and its data information is single.

[0090] (2) Non-contact is an important feature of visual deformation monitoring technology. Visual deformation monitoring technology analyzes the characteristics of target points in digital images and finds homologous points. It only needs to make a little treatment in advance at the target position and adjust the camera angle and lighting to make the characteristics obvious, without the need to contact the monitoring object and without causing any interference to the characteristics of the monitoring object. This reduces the measurement cost and eliminates the complexity of traditional measuring point layout.

[0091] (3) Real-time warning is the quality guarantee of visual engineering monitoring technology. With the rapid development of modern information technologies such as computer technology, artificial intelligence, and the Internet of Things, as well as the continuous optimization of visual algorithms, the computer's analysis and operation of digital images can reach the real-time level, enabling real-time analysis of deformation monitoring data and achieving the purpose of real-time warning to ensure the quality and safety of the project.

[0092] (4) Visual deformation monitoring technology can, according to the engineering needs, automatically and batch realize remote visual layout of monitoring points, can add, delete, and encrypt monitoring points autonomously according to the deformation situation of the monitoring object, collect images through the Internet of Things, and combined with the cloud computing architecture design, greatly reduce the complexity of on-site monitoring data processing and achieve low-cost and high-precision measurement.

[0093] (5) During the emergency rescue monitoring process of foundation pit engineering, the layout of points can be carried out quickly and safely, and real-time visual monitoring can be carried out to grasp the current situation of the project at any time.

[0094] Please refer to Figure 3 , Figure 3The flowchart of a foundation pit deformation monitoring method provided by an embodiment of this application. The foundation pit deformation monitoring method is applied to a foundation pit deformation monitoring system, and the foundation pit deformation monitoring system includes a data acquisition device, a wireless communication module, and a deformation monitoring module; as Figure 3 shown, the foundation pit deformation monitoring method includes:

[0095] S301, the data acquisition device collects the current monitoring data of the foundation pit and sends the current monitoring data to the wireless communication module; wherein, the current monitoring data includes internal monitoring data of the foundation pit, external monitoring data of the foundation pit, visual monitoring data, and environmental monitoring data;

[0096] S302, the wireless communication module sends the received current monitoring data to the deformation monitoring module;

[0097] S303, when the deformation monitoring module detects data exceeding a preset threshold in the current monitoring data, it determines the surface deformation monitoring points of the foundation pit, obtains the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, determines the current deformation situation of the foundation pit based on the current foundation pit surface image, and determines the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation situation; wherein, the current deformation situation is no visual deformation or there is visual deformation.

[0098] Further, the determining the surface deformation monitoring points of the foundation pit and obtaining the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points includes:

[0099] The deformation monitoring module obtains the three-dimensional spatial position of the monitoring and measuring camera in the data acquisition device at the foundation pit monitoring site;

[0100] The deformation monitoring module takes the three-dimensional spatial position as the center of the surface deformation monitoring points and generates a monitoring instruction based on the surface deformation monitoring points;

[0101] The deformation monitoring module sends the monitoring instruction to the monitoring and measuring camera so that the monitoring and measuring camera takes a picture of the surface of the foundation pit based on the monitoring instruction and obtains the current foundation pit surface image taken by the monitoring and measuring camera.

[0102] Further, the determining the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation situation includes:

[0103] When there is data in the current monitoring data that exceeds the preset threshold and the current deformation condition is without visual apparent damage, the deformation monitoring module determines that the current deformation warning level is a first-level warning;

[0104] When there is data in both the internal foundation pit monitoring data and the external foundation pit monitoring data that exceeds the preset threshold and the current deformation condition is without visual deformation, the deformation monitoring module determines that the current deformation warning level is a second-level warning;

[0105] When there is data in both the internal foundation pit monitoring data and the external foundation pit monitoring data that exceeds the preset threshold and the current deformation condition is with visual deformation, the deformation monitoring module determines that the current deformation warning level is a third-level warning.

[0106] Further, the deformation monitoring module determines the current deformation condition of the foundation pit based on the current foundation pit surface image, including:

[0107] Obtain the original foundation pit surface image of the foundation pit and determine a first feature area from the original foundation pit surface image;

[0108] Determine a second feature area corresponding to the first feature area from the current foundation pit surface image;

[0109] Compare the first feature area with the second feature area, determine the displacement of each feature point, and calculate whether there is a surface strain distribution on the foundation pit based on the displacement of each feature point;

[0110] If not, it is considered that the current deformation condition of the foundation pit is without visual deformation;

[0111] If so, it is considered that the current deformation condition of the foundation pit is with visual deformation.

[0112] Further, before the deformation monitoring module determines the first feature area from the original foundation pit surface image, the foundation pit deformation monitoring method further includes:

[0113] The deformation monitoring module performs image preprocessing on the original foundation pit surface image and the current foundation pit surface image to obtain the processed original foundation pit surface image and the processed current foundation pit surface image; wherein, the image preprocessing includes denoising processing and contrast enhancement processing;

[0114] The deformation monitoring module determines the processed original foundation pit surface image as the original foundation pit surface image and the processed current foundation pit surface image as the current foundation pit surface image.

[0115] Further, the internal monitoring data of the foundation pit includes deep horizontal displacement data, internal force of the support structure, and groundwater level. The visual monitoring data includes cracking data, heaving data, peeling data, earth gushing data, and quicksand data of the structural surface layer of the foundation pit. The environmental monitoring data includes rainfall, temperature, wind speed, and air pressure of the environment where the foundation pit is located.

[0116] Further, the external monitoring data includes deformation data of the support structure. The data acquisition device includes a monitoring and measuring camera. The foundation pit deformation monitoring method further includes:

[0117] The monitoring and measuring camera captures an image of the support structure of the foundation pit, and determines the deformation data of the support structure of the foundation pit based on the image of the support structure.

[0118] Please refer to Figure 4 , Figure 4 which is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 4 shown in

[0119] the electronic device 400 includes a processor 410, a memory 420, and a bus 430. Figure 3 The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 runs, the processor 410 communicates with the memory 420 through the bus 430. When the machine-readable instructions are executed by the processor 410, the steps of the foundation pit deformation monitoring method in the method embodiment as described above can be executed. The specific implementation manner can refer to the method embodiment and will not be elaborated here.

[0120] An embodiment of the present application further provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is run by a processor, the steps of the foundation pit deformation monitoring method in the method embodiment as described above can be executed. The specific implementation manner can refer to the method embodiment and will not be elaborated here. Figure 3 The persons skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0121]

[0122] In several embodiments provided by this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some communication interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0123] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0124] In addition, in each embodiment of this application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0125] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a non-volatile computer-readable storage medium executable by a processor. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or this part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of this application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0126] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present application can still modify the technical solutions described in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A foundation pit deformation monitoring system, characterized in that: The foundation pit deformation monitoring system includes a data acquisition device, a wireless communication module and a deformation monitoring module; The data acquisition device is used to collect current monitoring data of the foundation pit and send the current monitoring data to the wireless communication module; wherein the current monitoring data includes internal monitoring data of the foundation pit, external monitoring data of the foundation pit, visual monitoring data and environmental monitoring data; The wireless communication module is used to send the received current monitoring data to the deformation monitoring module; The deformation monitoring module is used to determine the surface deformation monitoring points of the foundation pit when it is detected that there is data exceeding a preset threshold in the current monitoring data, obtain the current foundation pit surface image collected by the data acquisition device based on the surface deformation monitoring points, determine the current deformation condition of the foundation pit based on the current foundation pit surface image, and determine the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation condition; wherein the current deformation condition is no visual deformation or the presence of visual deformation.

2. The foundation pit deformation monitoring system according to claim 1, characterized in that: When the deformation monitoring module is used to determine the surface deformation monitoring points of the foundation pit and obtain the current foundation pit surface image acquired by the data acquisition device based on the surface deformation monitoring points, the deformation monitoring module is also used to: Obtaining the three-dimensional spatial position of the monitoring and measuring camera in the data acquisition device at the foundation pit monitoring site; Taking the three-dimensional spatial position as the center of the surface deformation monitoring point, and generating a monitoring instruction based on the surface deformation monitoring point; The monitoring instruction is sent to the monitoring and measuring camera, so that the monitoring and measuring camera photographs the surface of the foundation pit based on the monitoring instruction, and obtains the current foundation pit surface image photographed by the monitoring and measuring camera.

3. The foundation pit deformation monitoring system according to claim 1, characterized in that: When the deformation monitoring module is used to determine the current deformation warning level of the foundation pit based on the current monitoring data and the current deformation situation, the deformation monitoring module is also used to: When there is data exceeding a preset threshold in the current monitoring data, and the current deformation situation is that there is no visual apparent damage, determining that the current deformation warning level is a first-level warning; When there is data exceeding a preset threshold value in both the internal monitoring data of the foundation pit and the external monitoring data of the foundation pit, and the current deformation situation is no visual deformation, determining that the current deformation warning level is a level 2 warning; When there is data exceeding a preset threshold value in both the internal monitoring data of the foundation pit and the external monitoring data of the foundation pit, and the current deformation situation is visual deformation, it is determined that the current deformation warning level is a level three warning.

4. The foundation pit deformation monitoring system according to claim 1, characterized in that: When the deformation monitoring module is used to determine the current deformation of the foundation pit based on the current foundation pit surface image, the deformation monitoring module is also used to: Acquire an original foundation pit surface image of the foundation pit, and determine a first characteristic area from the original foundation pit surface image; Determining a second characteristic region corresponding to the first characteristic region from the current foundation pit surface image; Comparing the first characteristic region with the second characteristic region, determining the displacement of each characteristic point, and calculating whether there is surface strain distribution in the foundation pit based on the displacement of each characteristic point; If not, it is considered that the current deformation of the foundation pit is no visual deformation; If so, it is considered that the current deformation of the foundation pit is visual deformation.

5. The foundation pit deformation monitoring system according to claim 4, characterized in that: Before the deformation monitoring module is used to determine the first characteristic area from the original foundation pit surface image, the deformation monitoring module is also used to: Performing image preprocessing on the original foundation pit surface image and the current foundation pit surface image to obtain a processed original foundation pit surface image and a processed current foundation pit surface image; wherein the image preprocessing includes denoising processing and contrast enhancement processing; The processed original foundation pit surface image is determined as the original foundation pit surface image, and the processed current foundation pit surface image is determined as the current foundation pit surface image.

6. The foundation pit deformation monitoring system according to claim 1, characterized in that: The internal monitoring data of the foundation pit include deep horizontal displacement data, internal force of the support structure and groundwater level; the visual monitoring data include cracking data, uplift data, shedding data, soil gushing data and quicksand data of the structural surface layer of the foundation pit; the environmental monitoring data include rainfall, temperature, wind speed and air pressure of the environment in which the foundation pit is located.

7. The foundation pit deformation monitoring system according to claim 1, characterized in that: The external monitoring data of the foundation pit includes deformation data of the supporting structure, and the data acquisition device includes a monitoring and measuring camera; The monitoring and measuring camera is used to capture the image of the supporting structure of the foundation pit, and determine the deformation data of the supporting structure of the foundation pit based on the image of the supporting structure.

8. A method for monitoring foundation pit deformation, characterized in that: The foundation pit deformation monitoring method is applied to the foundation pit deformation monitoring system as claimed in any one of claims 1 to 7, wherein the foundation pit deformation monitoring system comprises a data acquisition device, a wireless communication module and a deformation monitoring module; The foundation pit deformation monitoring method comprises: The data acquisition device acquires current monitoring data of the foundation pit and sends the current monitoring data to the wireless communication module; wherein the current monitoring data includes internal monitoring data of the foundation pit, external monitoring data of the foundation pit, visual monitoring data and environmental monitoring data; The wireless communication module sends the received current monitoring data to the deformation monitoring module; When the deformation monitoring module detects that there is data exceeding a preset threshold in the current monitoring data, the surface deformation monitoring point of the foundation pit is determined, the current surface image of the foundation pit acquired by the data acquisition device based on the surface deformation monitoring point is acquired, the current deformation condition of the foundation pit is determined based on the current surface image of the foundation pit, and the current deformation warning level of the foundation pit is determined based on the current monitoring data and the current deformation condition; wherein the current deformation condition is no visual deformation or visual deformation exists.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus. When the machine-readable instructions are run by the processor, the steps of the foundation pit deformation monitoring method as described in claim 8 are executed.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the foundation pit deformation monitoring method as claimed in claim 8 are executed.

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