Chimney steel inner cylinder hydraulic jacking installation monitoring method and system based on machine vision

Abstract

The invention relates to the technical field of machine vision, in particular to a chimney steel inner cylinder hydraulic jacking installation monitoring method and system based on machine vision, jacking safety analysis is carried out based on an abnormal evaluation result of a jacking process and an inner cylinder jacking stability evaluation result, and jacking process safety early warning is carried out based on a jacking safety analysis result. By monitoring abnormal fluctuation of a jacking position and operation data of hydraulic equipment, equipment faults, misoperation or external interference possibly existing in the construction process can be quickly found, so that emergency measures are taken in time, and by analyzing deformation and displacement data in the jacking process of the inner cylinder, the stability of the inner cylinder can be evaluated; inclination, deformation and even collapse caused by an unstable structure in the jacking process are avoided, and the safety, quality and efficiency of construction can be effectively improved based on comprehensive application of abnormal evaluation of jacking data, stability analysis of the inner cylinder and jacking safety early warning.

Description

Technical Field

[0001] The present invention relates to the technical field of machine vision, and in particular to a monitoring method and system for the hydraulic jacking installation of a chimney steel inner cylinder based on machine vision. Background Art

[0002] The construction of the steel inner cylinder of a large power plant chimney is a key and difficult point of the chimney project. The installation of the chimney steel inner cylinder mostly adopts the pneumatic jacking and reverse installation method. The pneumatic jacking and reverse installation method has no additional load on the outer cylinder of the chimney. However, when using this method, the top of the steel inner cylinder needs to be made into a sealed container shape. After the jacking is completed, the removal of the top cover of the sealed container needs to be carried out inside the inner cylinder, which poses a great safety risk; the jacking height is greatly affected by the air pressure, the air pressure control accuracy and difficulty are relatively high, the butt joint time of the cylinder sections is long, and it is difficult to ensure the stability of the lifting; the requirements for the lifting equipment are relatively strict, and the pneumatic equipment is prone to out-of-control explosion. It is necessary to reserve manholes or high-pressure gas pipe holes on the foundation cylinder wall, which will affect the design. The hydraulic jacking reverse installation process effectively avoids the dangers such as the over-length curling of the steel wire rope and the easy damage of the steel wire rope caused by the lifting method. The transport trolley travels under the jacking steel frame, and hydraulic jacks are set to ensure the stability of the steel inner cylinder when it lands during the jacking conversion process of each section of the steel inner cylinder. At the same time, by using the guide wheels and the reverse jacking steel frame construction platform, the construction task can be efficiently completed. The successful application of this construction method not only solves the technical problems of the installation of the chimney steel inner cylinder and realizes rapid installation, but also has no high-altitude operation, no additional load on the outer cylinder and the foundation, the hydraulic rod stroke is stable, synchronous and easy to operate, and the equipment is simple and easy to operate, which can not only ensure the construction safety and quality, but also speed up the construction progress. However, when we use conventional means to monitor the hydraulic jacking installation of the chimney steel inner cylinder, the prior art cannot comprehensively monitor the jacking process based on the comprehensive application of the characteristics of abnormal evaluation of jacking data, inner cylinder stability analysis and jacking safety warning, resulting in low construction safety, quality and efficiency, and at the same time increasing the construction cost and risk.

[0003] In view of this, the present application designs a monitoring method and system for the hydraulic jacking installation of a chimney steel inner cylinder based on machine vision. Summary of the Invention

[0004] In order to overcome the defects and deficiencies existing in the prior art, the present invention provides a monitoring method and system for the hydraulic jacking installation of a chimney steel inner cylinder based on machine vision.

[0005] In order to achieve the above object and solve the technical problems in the background art, the present invention adopts the following technical solutions: In the first aspect, the technical solution of the present invention provides a monitoring method for the hydraulic jacking installation of a chimney steel inner cylinder based on machine vision, including the following steps: S1. Obtain the jacking data, the operation data of the hydraulic equipment and the data of the inner cylinder during the jacking process through a machine vision terminal; S2. Based on the abnormal fluctuations in the jacking positions in the jacking data and the abnormal operation data of the hydraulic equipment, conduct an abnormal assessment of the jacking process to obtain the abnormal assessment result of the jacking process; S3. Based on the deformation data and displacement data of the inner cylinder during the jacking process, conduct a stability assessment of the inner cylinder jacking to obtain the stability assessment result of the inner cylinder jacking; S4. Based on the abnormal assessment result of the jacking process and the stability assessment result of the inner cylinder jacking, conduct a safety analysis of the jacking, and based on the safety analysis result of the jacking, conduct a safety warning for the jacking process.

[0006] In an implementation manner of the present invention, the jacking data during the jacking process includes the picture data of the jacking positions of all hydraulic equipment and the inner cylinder in real time during the jacking process and the deformation amount data of the jacking positions, the hydraulic equipment operation data includes the internal hydraulic oil pressure data of each hydraulic equipment and the extended height data of the hydraulic output end of each hydraulic equipment, and the data of the inner cylinder during the jacking process includes the shape data and the tilt angle data during the inner cylinder jacking process.

[0007] In an implementation manner of the present invention, the method for obtaining the abnormal fluctuations in the jacking positions of the jacking data in step S2 includes the following specific steps: S21. Obtain the picture data of the jacking positions of all hydraulic equipment and the inner cylinder in real time, obtain the number and size data of the cracks at the jacking positions from the picture data of the jacking positions, and at the same time obtain the deformation distance data of each point at the jacking position and the distance from each point to the jacking position. Conduct an abnormal analysis of the jacking position based on the number and size data of the cracks at the jacking positions, the deformation distance data of each point at the jacking position, and the distance from each point to the jacking position. Among them, the abnormal analysis formula for the jacking position is: , in this formula, s is the area of the deformation region at the jacking position, ds is the integral constant for the area, pi is the deformation distance of the i-th deformation point in the deformation region, pz is the deformation safety distance, xi is the distance from the i-th deformation point in the deformation region to the contact center point of the jacking position, xm is the standard distance, is the deformation abnormal proportion coefficient, M is the number of cracks at the jacking position, cj is the area of the j-th crack at the jacking position, cs is the area safety value of the crack, is the crack abnormal proportion coefficient, where Wy is the abnormality at the jacking position; S22. Obtain the abnormal analysis results of the jacking positions at all jacking positions, and conduct abnormal fluctuation analysis of the jacking positions based on the average value and the fluctuation conditions of the abnormal analysis results of the jacking positions at all jacking positions. Among them, the analysis method of the fluctuation conditions is: obtain the deviation between the abnormal analysis results of the jacking positions at all jacking positions and the average value, and then obtain the average value after taking the absolute value of all deviations to obtain the fluctuation conditions. Among them, the specific obtaining method of the abnormal fluctuation analysis of the jacking positions is: perform weighted summation on the normalized result of the average value of the abnormal analysis results of the jacking positions and the normalized result of the fluctuation conditions. Here, the normalization process is to divide by the standard value of the corresponding data.

[0008] In the above steps, accurately analyze the damage size and damage fluctuation of each jacking contact position through the jacking process to accurately evaluate the stability during the real-time jacking process. In an implementation manner of the present invention, the abnormal evaluation of the jacking process in step S2 includes the following specific steps: S23. Obtain the internal hydraulic oil pressure data of each hydraulic device and the extended height data of the hydraulic output end of each hydraulic device, and conduct abnormal analysis of the operation data of the hydraulic device based on the fluctuation of the internal hydraulic oil pressure data of each hydraulic device and the fluctuation of the extended height data of the hydraulic output end of each hydraulic device. S24. Obtain the abnormal analysis results of the jacking position abnormal fluctuations and the operation data of the hydraulic device, and perform weighted summation to obtain the abnormal evaluation result of the jacking process.

[0009] In the above steps, comprehensively analyze the abnormal operation data of the hydraulic device based on the operation fluctuation conditions of each hydraulic device.

[0010] In an implementation manner of the present invention, the evaluation of the inner cylinder jacking stability in step S3 includes the following specific contents: Obtain the shape data and tilt angle data during the inner cylinder jacking process, and conduct the evaluation of the inner cylinder jacking stability based on the deformation amount of the shape data and the tilt angle data during the inner cylinder jacking process. Among them, the evaluation of the inner cylinder jacking stability includes the following specific contents: Obtain the shape data and tilt angle data during the inner cylinder jacking process, and conduct the evaluation of the inner cylinder jacking stability based on the deformation amount of the shape data and the tilt angle data during the inner cylinder jacking process. Among them, the inner cylinder jacking stability evaluation formula is: , where is the sine of the tilt angle, Yc is the image contour at the starting moment of the inner cylinder jacking, Yx is the real-time image contour of the inner cylinder jacking. At the same time, is the intersection volume of the two contour images, is the union volume of the two contour images, and Xw is the inner cylinder jacking stability.

[0011] In an implementation manner of the present invention, in step S4, the jacking safety analysis is carried out based on the abnormal evaluation result of the jacking process and the inner cylinder jacking stability evaluation result, and the jacking process safety warning is carried out based on the jacking safety analysis result, including the following specific steps: Sum the reciprocal of the abnormal evaluation result of the jacking process obtained and the inner cylinder jacking stability with weights to obtain the corresponding jacking safety analysis value; If the obtained corresponding jacking safety analysis value is greater than or equal to the set jacking safety analysis set threshold, it indicates that the hydraulic jacking process of the steel inner cylinder of the chimney is safe and the next installation step can be carried out. If the obtained corresponding jacking safety analysis value is less than the set jacking safety analysis set threshold, it indicates that the hydraulic jacking process of the steel inner cylinder of the chimney is unsafe, and a process warning is carried out to remind the staff.

[0012] In a second aspect, the technical solution of the present invention also provides a monitoring system for the hydraulic jacking installation of the steel inner cylinder of a chimney based on machine vision, which specifically includes the following modules: A data acquisition module, which obtains jacking data, hydraulic equipment operation data, and data of the inner cylinder during the jacking process through a machine vision terminal; an abnormal evaluation module, which conducts an abnormal evaluation of the jacking process based on the abnormal fluctuation of the jacking position in the jacking data and the abnormality of the hydraulic equipment operation data to obtain an abnormal evaluation result of the jacking process; a stability evaluation module, which conducts an inner cylinder jacking stability evaluation based on the deformation data and displacement data of the inner cylinder during the jacking process to obtain an inner cylinder jacking stability evaluation result; a safety warning module, which conducts a jacking safety analysis based on the abnormal evaluation result of the jacking process and the inner cylinder jacking stability evaluation result, and conducts a jacking process safety warning based on the jacking safety analysis result; a control module, which is used to control the operation of the data acquisition module, the abnormal evaluation module, the stability evaluation module, and the safety warning module.

[0013] In a third aspect, an electronic device provided by the technical solution of the present invention includes: a processor and a memory, wherein the memory stores a computer program that can be called by the processor, and the processor executes the monitoring method for the hydraulic jacking installation of the steel inner cylinder of a chimney based on machine vision by calling the computer program stored in the memory.

[0014] In a fourth aspect, a computer-readable storage medium provided by the technical solution of the present invention stores instructions, and when the instructions run on a computer, the computer is made to execute the monitoring method for the hydraulic jacking installation of the steel inner cylinder of a chimney based on machine vision.

[0015] The technical solution of the present invention has the following advantages and beneficial effects: First, based on the abnormal fluctuations in the jacking position of the jacking data and the abnormalities in the operation data of the hydraulic equipment, an abnormal assessment of the jacking process is carried out to obtain the abnormal assessment result of the jacking process. Then, based on the deformation data and displacement data of the inner cylinder during the jacking process, the stability assessment of the inner cylinder jacking is carried out to obtain the stability assessment result of the inner cylinder jacking. Finally, based on the abnormal assessment result of the jacking process and the stability assessment result of the inner cylinder jacking, a jacking safety analysis is carried out, and a safety warning for the jacking process is carried out based on the jacking safety analysis result. By monitoring the abnormal fluctuations in the jacking position and the operation data of the hydraulic equipment, potential equipment failures, operation errors, or external interferences during the construction process can be quickly detected, and thus emergency measures can be taken in a timely manner. By analyzing the deformation and displacement data during the inner cylinder jacking process, the stability of the inner cylinder can be evaluated to ensure that it will not tilt, deform, or even collapse due to unstable structure during the jacking process. The comprehensive application of the abnormal assessment based on the jacking data, the inner cylinder stability analysis, and the jacking safety warning can effectively improve the safety, quality, and efficiency of the construction, while reducing the construction cost and risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them: Figure 1 It is a schematic diagram of the overall process of the method embodiment of the present invention; Figure 2 It is a flowchart of the operation of S2 in the method embodiment of the present invention; Figure 3 It is a flowchart of the operation of S4 in the method embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the system embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the electronic device embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will give a detailed description of the specific embodiments of the present invention in conjunction with the drawings of the specification.

[0018] Many specific details are set forth in the following description in order to provide a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0019] Secondly, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure or characteristic that may be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an individual or selectively mutually exclusive embodiment with other embodiments. Embodiment 1

[0020] As Figures 1 to 3 shown, this embodiment provides a monitoring method for the hydraulic jacking installation of the steel inner cylinder of a chimney based on machine vision, which specifically includes the following steps: S1. Obtain the jacking data, hydraulic equipment operation data, and inner cylinder data during the jacking process through a machine vision terminal; In this embodiment, the jacking data during the jacking process includes the picture data of the jacking positions of all hydraulic equipment and the inner cylinder in real time during the jacking process and the deformation amount data of the jacking positions. The hydraulic equipment operation data includes the internal hydraulic oil pressure data of each hydraulic equipment and the extended height data of the hydraulic output end of each hydraulic equipment. The inner cylinder data during the jacking process includes the shape data and tilt angle data during the inner cylinder jacking process; S2. Perform an abnormal evaluation of the jacking process based on the abnormal fluctuations in the jacking positions of the jacking data and the abnormalities in the hydraulic equipment operation data to obtain an abnormal evaluation result of the jacking process; In this embodiment, the method for obtaining the abnormal fluctuations in the jacking positions of the jacking data in step S2 includes the following specific steps: S21. Obtain the picture data of the jacking positions of all hydraulic equipment and the inner cylinder in real time, obtain the number and size data of the cracks at the jacking positions from the picture data of the jacking positions, and at the same time obtain the deformation distance data of each point at the jacking position and the distance from each point to the jacking position. Perform an abnormal analysis of the jacking position based on the number and size data of the cracks at the jacking positions, the deformation distance data of each point at the jacking position, and the distance from each point to the jacking position. Among them, the abnormal analysis formula for the jacking position is: , in this formula, s is the area of the deformation region at the jacking position, ds is the integral constant for the area, pi is the deformation distance of the i-th deformation point in the deformation region, pz is the deformation safety distance, xi is the distance from the i-th deformation point in the deformation region to the contact center point of the jacking position, xm is the standard distance, Wy is the abnormality at the jacking position. The above formula weights the deformation distance of the deformation points at different positions by the distance length to the center point. Since the deformation closer to the contact center point of the jacking position has a greater impact on the jacking process, the impact of the jacking deformation on the jacking process is comprehensively analyzed. is the deformation abnormality ratio coefficient, M is the number of cracks at the jacking position, cj is the area of the j-th crack at the jacking position, cs is the area safety value of the crack, is the crack abnormality ratio coefficient, where Preferably 0.85, Preferably 0.15; S22. Obtain the abnormal analysis results of the jacking positions at all jacking positions, and conduct abnormal fluctuation analysis of the jacking positions based on the average value and the fluctuation condition of the abnormal analysis results of the jacking positions at all jacking positions. Among them, the analysis method of the fluctuation condition is: obtain the deviation between the abnormal analysis results of the jacking positions at all jacking positions and the average value, and then obtain the average value after taking the absolute value of all deviations to obtain the fluctuation condition. Among them, the specific obtaining method of the abnormal fluctuation analysis of the jacking positions is: perform weighted summation on the normalized result of the average value of the abnormal analysis results of the jacking positions and the normalized result of the fluctuation condition. Here, the normalization process is to divide by the standard value of the corresponding data; In the above steps, accurately analyze the damage size and damage fluctuation of each jacking contact position through the jacking process to accurately evaluate the stability during the real-time jacking process; In this embodiment, the abnormal evaluation of the jacking process in step S2 includes the following specific steps: S23. Obtain the internal hydraulic oil pressure data of each hydraulic device and the extended height data of the hydraulic output end of each hydraulic device, and conduct abnormal analysis of the operation data of the hydraulic device based on the fluctuation of the internal hydraulic oil pressure data of each hydraulic device and the fluctuation of the extended height data of the hydraulic output end of each hydraulic device. Among them, the abnormal analysis formula of the operation data of the hydraulic device is: , where N is the number of hydraulic devices, r is the oil pressure fluctuation influence coefficient, Fz is the oil pressure of the z-th hydraulic device, Fm is the standard oil pressure of the oil pressure device, Wz is the extended height data of the z-th hydraulic device, Wm is the standard extended height data of the oil pressure device. Among them, Qz is the abnormal operation data of the hydraulic device, z is the z-th hydraulic device, r is preferably 0.45. Hydraulic oil pressure data: By installing pressure sensors inside the hydraulic device, the pressure data of the hydraulic oil is collected in real time (unit: MPa or bar). Multiple sensors can be set at different positions (such as the oil inlet, oil outlet, etc.) to obtain comprehensive oil pressure information; Extended height data of the hydraulic output end: Install displacement sensors (such as linear variable differential transformers, laser altimeters, etc.) on the piston or telescopic part of the hydraulic cylinder to monitor the extended height of the hydraulic output end of the hydraulic device in real time (unit: mm); S24. Obtain the abnormal evaluation result of the jacking process after performing weighted summation on the abnormal fluctuation analysis result of the jacking position and the abnormal analysis result of the operation data of the hydraulic device; In the above steps, comprehensively analyze the operation fluctuation conditions of each hydraulic device for the abnormal analysis of the operation data of the hydraulic device; S3. Based on the deformation data and displacement data of the inner cylinder during the jacking process, evaluate the stability of the inner cylinder jacking to obtain the evaluation result of the inner cylinder jacking stability; In this embodiment, the evaluation of the stability of the inner cylinder jacking in step S3 includes the following specific contents: Obtain the shape data and tilt angle data during the inner cylinder jacking process, and evaluate the stability of the inner cylinder jacking based on the deformation amount of the shape data and the tilt angle data during the inner cylinder jacking process. Among them, the formula for evaluating the stability of the inner cylinder jacking is: , where is the sine of the tilt angle, Yc is the image contour at the starting moment of the inner cylinder jacking, Yx is the real-time image contour of the inner cylinder jacking. At the same time, is the intersection volume of the two contour images, is the union volume of the two contour images, Xw is the stability of the inner cylinder jacking, and the tilt angle is the included angle between the perpendicular bisector of the lower surface of the inner cylinder and the perpendicular line of the horizontal plane. The larger the angle, the lower the stability of the inner cylinder jacking. During the inner cylinder jacking process here, the image may change and the jacking angle may deflect due to the collision between the inner cylinder and the inner surface of the chimney. The change in the stability of the inner cylinder jacking can be effectively analyzed through the angle deflection and deformation amount; S4. Perform jacking safety analysis based on the abnormal evaluation result of the jacking process and the evaluation result of the inner cylinder jacking stability, and perform safety warning during the jacking process based on the jacking safety analysis result; In this embodiment, in step S4, perform jacking safety analysis based on the abnormal evaluation result of the jacking process and the evaluation result of the inner cylinder jacking stability, and perform safety warning during the jacking process based on the jacking safety analysis result, including the following specific steps: Perform weighted summation of the reciprocal of the obtained abnormal evaluation result of the jacking process and the inner cylinder jacking stability to obtain the corresponding jacking safety analysis value; If the obtained corresponding jacking safety analysis value is greater than or equal to the set jacking safety analysis threshold, it indicates that the hydraulic jacking process of the steel inner cylinder of the chimney is safe and the next installation step can be carried out. If the obtained corresponding jacking safety analysis value is less than the set jacking safety analysis threshold, it indicates that the hydraulic jacking process of the steel inner cylinder of the chimney is unsafe, and a process warning is given to remind the staff.

[0021] Exemplarily, it should be noted that in this embodiment, the acquisition method of the set parameters (such as various weighting weights and thresholds, etc.) in this embodiment is obtained through experiments by those skilled in the art. The specific experimental method is: obtain the jacking data, hydraulic equipment operation data, and data of the inner cylinder during the historical jacking process, substitute them into each step of this embodiment to calculate the jacking safety analysis value, and at the same time obtain whether a safety accident occurs to the inner cylinder during the jacking process. Based on the jacking safety analysis result and whether a safety accident occurs to the inner cylinder during the jacking process, import the data into the fitting software for iterative fitting of the data, and output the set parameter values that meet the maximum judgment accuracy rate.

[0022] In this embodiment, it should be noted that this embodiment has the following advantages. First, based on the abnormal fluctuations in the jacking position of the jacking data and the abnormalities in the operating data of the hydraulic equipment, an abnormal assessment of the jacking process is carried out to obtain the abnormal assessment result of the jacking process. Then, based on the deformation data and displacement data of the inner cylinder during the jacking process, the stability assessment of the inner cylinder jacking is carried out to obtain the stability assessment result of the inner cylinder jacking. Finally, based on the abnormal assessment result of the jacking process and the stability assessment result of the inner cylinder jacking, a jacking safety analysis is carried out, and a safety warning for the jacking process is carried out based on the jacking safety analysis result. By monitoring the abnormal fluctuations in the jacking position and the operating data of the hydraulic equipment, possible equipment failures, operation errors, or external interferences during the construction process can be quickly detected, and thus emergency measures can be taken in a timely manner. By analyzing the deformation and displacement data during the inner cylinder jacking process, the stability of the inner cylinder can be evaluated to ensure that it will not tilt, deform, or even collapse due to unstable structure during the jacking process. The comprehensive application of abnormal assessment based on jacking data, inner cylinder stability analysis, and jacking safety warning can effectively improve the safety, quality, and efficiency of construction, while reducing construction costs and risks. Embodiment 2

[0023] As Figure 4 shown, this embodiment provides a machine vision-based monitoring system for the hydraulic jacking installation of a chimney steel inner cylinder, which specifically includes the following modules: a data acquisition module that obtains jacking data, hydraulic equipment operating data, and inner cylinder data during the jacking process through a machine vision terminal; an abnormal assessment module that conducts an abnormal assessment of the jacking process based on the abnormal fluctuations in the jacking position of the jacking data and the abnormalities in the hydraulic equipment operating data to obtain the abnormal assessment result of the jacking process; a stability assessment module that conducts a stability assessment of the inner cylinder jacking based on the deformation data and displacement data of the inner cylinder during the jacking process to obtain the stability assessment result of the inner cylinder jacking; a safety warning module that conducts a jacking safety analysis based on the abnormal assessment result of the jacking process and the stability assessment result of the inner cylinder jacking, and issues a safety warning for the jacking process based on the jacking safety analysis result; a control module that is used to control the operation of the data acquisition module, abnormal assessment module, stability assessment module, and safety warning module. For the parameters and the steps of each unit module in the above-mentioned machine vision-based monitoring system for the hydraulic jacking installation of a chimney steel inner cylinder of the present invention to achieve their corresponding functions, as well as their corresponding roles, reference can be made to the parameters and steps in the embodiments of the machine vision-based monitoring method for the hydraulic jacking installation of a chimney steel inner cylinder in the above text, which will not be elaborated here. Embodiment 3

[0024] As Figure 5As shown in the figure, an electronic device according to an embodiment of the present invention includes: a processor and a memory. Among them, a computer program that can be called by the processor is stored in the memory. The processor executes a monitoring method for the hydraulic jacking installation of the steel inner cylinder of the chimney based on machine vision by calling the computer program stored in the memory. It should be noted that: all computer programs of the monitoring method for the hydraulic jacking installation of the steel inner cylinder of the chimney based on machine vision are implemented in the C language. Embodiment 4

[0025] This embodiment proposes a computer-readable storage medium, on which a rewritable computer program is stored; When the computer program runs on a computer device, the computer device is enabled to execute the above-mentioned monitoring method for the hydraulic jacking installation of the steel inner cylinder of the chimney based on machine vision.

[0026] Each embodiment in the present invention is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments. In particular, for the embodiments of the Internet of Things devices and media, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0027] The systems and media provided by the embodiments of the present invention correspond one-to-one with the methods. Therefore, the systems and media also have beneficial technical effects similar to those of the corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the systems and media will not be repeated here.

[0028] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0029] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices to generate a machine, so that the instructions executed by the processors of the computer or other programmable data processing devices generate for implementation in the process Figure 1one or more processes and / or blocks Figure 1 a device for the functions specified in one or more blocks

[0030] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device that implements the functions specified in one process Figure 1 one or more processes and / or blocks Figure 1 specified in one or more blocks

[0031] In a typical configuration, a computing device includes one or more processors (CPUs), an input / output interface, a network interface, and memory.

[0032] Memory may include non-permanent memory in the form of computer-readable media, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0033] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can implement information storage by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tapes, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media such as modulated data signals and carrier waves.

[0034] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0035] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A machine vision-based monitoring method for the hydraulic lifting installation of a chimney steel inner tube, characterized in that: The steps include: The lifting data, hydraulic equipment operation data and inner barrel data of the lifting process are obtained through the machine vision terminal; Based on the abnormal fluctuation of the lifting position of the lifting data and the abnormal operation data of the hydraulic equipment, the abnormal evaluation of the lifting process is performed to obtain the abnormal evaluation result of the lifting process; Based on the deformation data and displacement data of the inner tube during the lifting process, the lifting stability of the inner tube is evaluated, and the evaluation result of the lifting stability of the inner tube is obtained; A jacking safety analysis is performed based on the abnormal assessment results of the jacking process and the inner barrel jacking stability assessment results, and a jacking process safety warning is issued based on the jacking safety analysis results.

2. The method for monitoring the hydraulic lifting installation of the chimney steel inner tube based on machine vision according to claim 1 is characterized in that: The method for obtaining the abnormal fluctuation of the lifting position of the lifting data comprises the following specific steps: Obtain real-time image data of the jacking position of all hydraulic equipment and the inner tube, obtain the number and size data of cracks at the jacking position from the image data of the jacking position, and simultaneously obtain the deformation distance data of each point at the jacking position and the distance from each point to the jacking position, and perform abnormal analysis of the jacking position based on the number and size data of cracks at the jacking position, the deformation distance data of each point at the jacking position and the distance from each point to the jacking position; The abnormal analysis results of the jacking position of all jacking positions are obtained, and the abnormal fluctuation analysis of the jacking position is performed based on the average value and fluctuation of the abnormal analysis results of the jacking position of all jacking positions, wherein the analysis method of the fluctuation is: obtain the deviation between the abnormal analysis results of the jacking position of all jacking positions and the average value, and then obtain the absolute value of all deviations and then average them to obtain the fluctuation situation, wherein the specific acquisition method of the abnormal fluctuation analysis of the jacking position is: perform weighted summation on the normalized result of the average value of the abnormal analysis results of the jacking position and the normalized result of the fluctuation situation, and the normalization process here is to divide by the standard value of the corresponding data.

3. The method for monitoring the hydraulic lifting installation of the chimney steel inner tube based on machine vision according to claim 2 is characterized in that: The abnormality assessment of the jacking process includes the following specific steps: Acquire the internal hydraulic oil pressure data of each hydraulic device and the extension height data of the hydraulic output end of each hydraulic device, and perform abnormal analysis on the operation data of the hydraulic device based on the fluctuation of the internal hydraulic oil pressure data of each hydraulic device and the extension height data of the hydraulic output end of each hydraulic device; The abnormal fluctuation analysis results of the jacking position and the abnormal analysis results of the hydraulic equipment operation data are obtained, and then the abnormal evaluation results of the jacking process are obtained by weighted summation.

4. The method for monitoring the hydraulic lifting installation of the chimney steel inner tube based on machine vision according to claim 3 is characterized in that: The inner tube lifting stability assessment includes the following specific contents: The shape data and the tilt angle data during the inner tube lifting process are obtained, and the inner tube lifting stability is evaluated based on the deformation amount and the tilt angle data of the shape data during the inner tube lifting process. The inner tube lifting stability evaluation formula is: ,in, is the sine of the tilt angle, Yc is the image profile at the start of the inner tube lifting, and Yx is the real-time image profile of the inner tube lifting. is the intersection volume of the two contour images, is the union volume of the two contour images, and Xw is the lifting stability of the inner tube.

5. The machine vision-based chimney steel inner tube hydraulic jacking installation monitoring method according to claim 4 is characterized in that: The method of performing a jacking safety analysis based on the abnormal evaluation results of the jacking process and the jacking stability evaluation results of the inner tube, and performing a jacking process safety warning based on the jacking safety analysis results, includes the following specific steps: The inverse of the abnormal evaluation result of the jacking process obtained and the jacking stability of the inner tube are weightedly summed to obtain the corresponding jacking safety analysis value; If the corresponding jacking safety analysis value obtained is greater than or equal to the set jacking safety analysis setting threshold, it indicates that the hydraulic jacking process of the chimney steel inner tube is safe and the next step of installation can be carried out. If the corresponding jacking safety analysis value obtained is less than the set jacking safety analysis setting threshold, it indicates that the hydraulic jacking process of the chimney steel inner tube is unsafe, and a process warning is issued to remind the staff.

6. The machine vision-based monitoring method for hydraulic jacking installation of chimney steel inner tube according to claim 5 is characterized in that: The jacking data during the jacking process includes real-time image data of the jacking positions of all hydraulic equipment and the inner cylinder during the jacking process, as well as deformation data of the jacking positions; the hydraulic equipment operation data includes the internal hydraulic oil pressure data of each hydraulic equipment and the extension height data of the hydraulic output end of each hydraulic equipment; the data of the inner cylinder during the jacking process includes the shape data and inclination angle data of the inner cylinder during the jacking process.

7. The machine vision-based monitoring method for hydraulic jacking installation of chimney steel inner tube according to claim 6 is characterized in that: The abnormal analysis formula of the lifting position is: In this formula, s is the area of ​​the deformation zone at the lifting position, ds is the area integral constant, pi is the deformation distance of the i-th deformation point in the deformation zone, pz is the deformation safety distance, xi is the distance from the i-th deformation point in the deformation zone to the contact center point at the lifting position, and xm is the standard distance. is the deformation anomaly ratio, M is the number of cracks at the jacking position, cj is the area of ​​the jth crack at the jacking position, cs is the area safety value of the crack, is the coefficient of crack anomaly proportion, where Wy is the abnormal lifting position.

8. A machine vision-based monitoring system for hydraulic lifting installation of a chimney steel inner tube, which is implemented based on a machine vision-based monitoring method for hydraulic lifting installation of a chimney steel inner tube as claimed in any one of claims 1 to 7, and is characterized in that: The system comprises: The data acquisition module acquires the jacking data, hydraulic equipment operation data and inner cylinder data of the jacking process through the machine vision terminal; the abnormality assessment module performs abnormality assessment of the jacking process based on the abnormal fluctuation of the jacking position of the jacking data and the abnormality of the hydraulic equipment operation data, and obtains the abnormality assessment result of the jacking process; the stability assessment module performs jacking stability assessment of the inner cylinder based on the deformation data and displacement data of the inner cylinder during the jacking process, and obtains the jacking stability assessment result of the inner cylinder; the safety warning module performs jacking safety analysis based on the abnormality assessment result of the jacking process and the jacking stability assessment result of the inner cylinder, and performs safety warning of the jacking process based on the jacking safety analysis result; the control module is used to control the operation of the data acquisition module, the abnormality assessment module, the stability assessment module and the safety warning module.

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