Factory detection method and device of bogie, electronic equipment and storage medium

Abstract

The invention discloses a factory detection method and device for a bogie, electronic equipment and a storage medium. The method comprises the steps that a bogie to be subjected to factory detection is controlled to be located at a preset position of a factory detection device, the bogie is detected, and bogie detection information is obtained; character identification information, installation state information and size data information of the bogie are determined based on the bogie detection information, the character identification information is used for representing identification characters on the bogie, and the installation state information is used for representing the installation state of a first preset part in the bogie; the size data information is used for representing gap data of a second preset part in the bogie; based on the character identification information, the installation state information and the size data information, a factory detection result of the bogie is determined, and the factory detection result is used for representing whether the bogie meets a preset factory detection standard or not. According to the invention, the technical problem of low detection efficiency of factory detection of the bogie in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of bogie detection, and in particular to a bogie factory detection method, device, electronic equipment and storage medium. Background Art

[0002] After the production and manufacturing of the bogie is completed, the bogie needs to be factory inspected to ensure that it complies with relevant standards and regulations, can operate normally and be used safely, and to confirm that the quality and performance of the bogie meet the requirements and can be delivered to customers for use. This is an important part of ensuring product quality and safety.

[0003] At present, in the relevant technology, the factory inspection of the bogie needs to be carried out manually by relevant technical personnel. There are many items to be inspected and the workload is large. After the bogie is assembled, it is inspected manually. Due to the limitations of the bogie structure and human factors, the inspection is accurate, efficient and incomplete. The vehicle accessories information is transmitted by manual paper copying, and there are data errors and omissions. There is a lack of data statistics and trend analysis, and the quality control ability is weak, resulting in low efficiency of factory inspection of the bogie.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a method, device, electronic device and storage medium for factory inspection of a bogie, so as to at least solve the technical problem of low inspection efficiency of factory inspection of a bogie in the related art.

[0006] According to one aspect of an embodiment of the present invention, a factory inspection method for a bogie is provided, comprising: controlling a bogie to be subjected to factory inspection to be at a preset position of a factory inspection device, and detecting the bogie to obtain bogie detection information; determining character identification information, installation status information and dimensional data information of the bogie based on the bogie detection information, wherein the character identification information is used to characterize identification characters on the bogie, the installation status information is used to characterize the installation status of a first preset portion in the bogie, and the dimensional data information is used to represent clearance data of a second preset portion in the bogie; determining a factory inspection result of the bogie based on the character identification information, the installation status information and the dimensional data information, wherein the factory inspection result is used to characterize whether the bogie meets a preset factory inspection standard.

[0007] Optionally, determining the character identification information of the bogie based on the bogie detection information includes: performing text box positioning on the bogie image data in the bogie detection information to obtain an initial text box; performing text box correction on the initial text box to obtain a target text box; performing character recognition on the character identification in the target text box to obtain character identification information.

[0008] Optionally, determining the installation status information of the bogie based on the bogie detection information includes: obtaining a standard installation database, wherein the standard installation database is used to represent a database composed of standard positions of multiple item points in the bogie; matching the two-dimensional image of the item points in the bogie detection information with the standard installation database to obtain the installation status information.

[0009] Optionally, the two-dimensional image of item points in the bogie detection information is matched with the standard installation database to obtain installation status information, including: matching the two-dimensional image of the item points with the standard installation database to obtain item point matching results, wherein the item point matching results at least include the correspondence between actual item points in the two-dimensional image of the item points and standard item points in the standard installation database; determining the item point similarity between the actual item points and the standard item points in the matching results; and determining the installation status information based on the item point similarity.

[0010] Optionally, determining the dimensional data information of the bogie based on the bogie detection information includes: obtaining a standard dimension database, wherein the standard dimension database is used to represent a database composed of standard dimensions of multiple item points in the bogie; comparing the three-dimensional information of the item points in the bogie detection information with the standard dimension database to obtain the dimensional data information.

[0011] Optionally, the bogie to be subjected to factory inspection is controlled to be in a preset position of the factory inspection device, and the bogie is detected to obtain bogie detection information, including: pushing the bogie into the factory inspection device along the slide rail, and when the bogie reaches the preset position, fixing the bogie by a blocking device on the factory inspection device, and detecting the bogie to obtain bogie detection information.

[0012] According to another aspect of an embodiment of the present invention, a factory inspection device for a bogie is provided, comprising: a detection module, used to control the bogie to be subjected to factory inspection to be in a preset position of the factory inspection device, and to detect the bogie to obtain bogie detection information; a first determination module, used to determine the character identification information, installation status information and dimensional data information of the bogie based on the bogie detection information, wherein the character identification information is used to characterize the identification characters on the bogie, the installation status information is used to characterize the installation status of a first preset position in the bogie, and the dimensional data information is used to represent the clearance data of a second preset part in the bogie; a second determination module, used to determine the factory inspection result of the bogie based on the character identification information, the installation status information and the dimensional data information, wherein the factory inspection result is used to characterize whether the bogie meets the preset factory inspection standard.

[0013] Optionally, the detection module includes: a blocking device, used to fix the bogie when the bogie enters the factory inspection device along the slide rail and reaches a preset position.

[0014] According to another aspect of an embodiment of the present invention, there is further provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the method in each embodiment of the present invention is executed when the program is running.

[0015] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the methods in various embodiments of the present invention.

[0016] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0017] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0018] According to another aspect of the embodiments of the present invention, a computer program is provided. When the computer program is executed by a processor, the methods in the embodiments of the present invention are implemented.

[0019] In an embodiment of the present invention, a method for factory inspection of a bogie is provided, comprising: controlling a bogie to be subjected to factory inspection to be in a preset position of a factory inspection device, and detecting the bogie to obtain bogie detection information; determining character identification information, installation status information and dimensional data information of the bogie based on the bogie detection information, wherein the character identification information is used to characterize the identification characters on the bogie, the installation status information is used to characterize the installation status of a first preset portion in the bogie, and the dimensional data information is used to represent the clearance data of a second preset portion in the bogie; determining the factory inspection result of the bogie based on the character identification information, the installation status information and the dimensional data information, wherein the factory inspection result is used to characterize whether the bogie meets the preset factory inspection standard. It is easy to notice that

[0020] In the process of factory inspection of the bogie, the present application can determine the character identification information, installation status information and dimension data information of the bogie based on the detected bogie detection information, and then determine the factory inspection result. Through the character identification information on the bogie, the production information and quality control information of the bogie can be determined, which is convenient for the process tracking of quality inspection; the inspection personnel can check the installation status of the bogie based on the installation status information, which can help determine whether the bogie meets the standard requirements during installation, and the information of the clearance data of the second preset part in the bogie of the bogie can be determined through the dimension data information to ensure the safety and reliability of the bogie. Through comprehensive analysis of the character identification information, installation status information and dimension data information, the inspection personnel can determine the factory inspection result of the bogie, that is, whether the bogie meets the preset factory inspection standard, improve the inspection efficiency and accuracy of the bogie, so as to further improve the factory inspection level of the bogie, and at the same time reduce the influence of human factors on the inspection results, improve the quality and safety of the bogie, and then solve the technical problem of low inspection efficiency of factory inspection of the bogie in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 is a flow chart of a factory inspection method for a bogie according to an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of an optional factory inspection device for a bogie according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of an optional factory inspection method for a bogie according to an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of an optional method of detecting a bogie using a factory detection device according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of a factory inspection device for a bogie according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] According to one aspect of an embodiment of the present invention, a method for factory inspection of a bogie is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] Figure 1 is a flow chart of a factory inspection method for a bogie according to an embodiment of the present invention, such as Figure 1 As shown, the method comprises the following steps:

[0031] Step S102, controlling the bogie to be subjected to factory inspection to be at a preset position of the factory inspection device, and detecting the bogie to obtain bogie detection information.

[0032] The above-mentioned bogie may refer to a component located at the bottom of a railway vehicle or a freight car, which bears the weight of the vehicle and is responsible for steering. The bogie may be composed of a wheel set, a bearing, a suspension system, a spring, a shock absorber, etc. In railway transportation, the bogie can ensure that the vehicle remains stable and can flexibly steer during driving, thereby ensuring the safety and stability of the train or freight car. The bogie pushes the vehicle forward through the friction between the wheel set and the track, and can also help the vehicle pass through complex road conditions such as curves or turns. In addition, the bogie can also help the vehicle share the weight, reduce the load of the vehicle, and extend the service life of the vehicle. At the same time, the bogie can also change the suspension height and hardness of the vehicle by adjusting components such as the suspension system and springs to adapt to different roads and transportation requirements.

[0033] The above-mentioned factory inspection device may refer to a device used to perform factory inspection on the bogie. The factory inspection device may include slide rails, blocking devices, robotic arms in multiple positions, various inspection devices or sensors, data processing and management systems, data visualization display modules, user interaction modules and communication modules, etc. The actual structure and settings of the factory inspection device can be determined according to actual needs and are not limited here.

[0034] The above-mentioned preset position may refer to a preset fixed position for factory inspection of the bogie. Different factory inspection items may correspond to different preset positions to achieve comprehensive inspection of the bogie. The preset position may be determined according to actual needs and is not limited here.

[0035] The above-mentioned bogie detection information may refer to different angles and multiple types of information obtained by detecting or probing the bogie, which may include but is not limited to image information, video information, infrared detection information, ultrasonic detection information, etc. The bogie detection information can be determined based on actual needs and is not limited here.

[0036] In an optional embodiment, during the factory inspection of the bogie, the bogie to be inspected can be controlled to be in the preset position of the factory inspection device and detected, which can ensure that the bogie meets the standard requirements during the production process. Specifically, the preset position of the bogie in the factory inspection device can be determined according to the design requirements and standard specifications of the bogie, including parameters such as position coordinates, angles and postures. The bogie can be positioned and controlled by a control system so that it is accurately in the preset position, and the position control of the bogie can be achieved by means of a hydraulic system, motor drive or pneumatic control. After the bogie is in the preset position, the bogie can be detected by a sensor or measuring instrument to obtain various parameter information of the bogie, which can include laser measurement, photoelectric sensor detection, camera visual detection, etc. Finally, the bogie information obtained by detection can be input into the data processing system for processing and analysis, and the various parameters of the bogie can be evaluated and compared to determine whether the bogie meets the design requirements. By adopting automation technology, automatic positioning and detection of the bogie can be achieved, which can improve production efficiency and detection accuracy. At the same time, the impact of different environmental conditions on the factory inspection of the bogie can be considered, and corresponding inspection devices and detection schemes can be designed to ensure accurate inspection in various working environments.

[0037] Step S104, determining the character identification information, installation status information and dimension data information of the bogie based on the bogie detection information.

[0038] Among them, the character identification information is used to represent the identification characters on the bogie, the installation status information is used to represent the installation status of the first preset part in the bogie, and the size data information is used to represent the gap data of the second preset part in the bogie.

[0039] The first preset part and the second preset part mentioned above may represent the same part or different parts, which may be determined according to actual needs and are not limited here.

[0040] The above-mentioned character identification information may refer to information used to identify specific characters or numbers on the bogie. These characters or numbers may include manufacturer information, production date, model, etc., which are used to uniquely identify the identity information of each bogie. Through the character identification information, the production and use of the bogie can be easily tracked and managed.

[0041] The above-mentioned installation status information may refer to information used to characterize the installation status of the first preset part in the bogie. Such information generally includes the installation angle, the tightening status of the connection part, etc., and is used to evaluate whether the bogie meets the requirements during the installation process and whether there is a poor installation. For example, the installation status information may include whether the installation angle of the bogie is within the allowable range, whether the tightening bolts of the connection part meet the specified torque requirements, etc.

[0042] The above-mentioned dimension data information may refer to information used to represent the gap data of the second preset part in the bogie. Such data generally include the size and position of the gap, etc., and are used to evaluate whether the bogie has a gap that is too large or too small during use. For example, the dimension data information may include the gap size of the bearing in the bogie, and the gap position between the bearing and the base, etc. The dimension data information can ensure the stability and safety of the bogie during use.

[0043] In an optional embodiment, during the factory inspection of the bogie, the character identification information, installation status information and dimensional data information of the bogie can be determined based on the bogie detection information. Specifically, the identification characters on the bogie can be identified and extracted by using optical character recognition technology or image processing algorithms. These identification characters usually include important information such as the model, serial number, and production date of the bogie, which can help trace the production process and quality control of the product. Then, the installation status information of the first preset part of the bogie can be obtained by using a sensor or a camera and other equipment, which can include the looseness of the fasteners, whether the installation position of the parts is correct, whether the gap at the connection meets the standard, etc. Through data analysis and comparison, it can be determined whether the installation state of the bogie meets the requirements. Finally, the gap data information of the second preset part of the bogie can be obtained by using a measuring instrument or a sensor, which can include dimensional data such as the gap between the parts, the gap of the bearing, and the gap at the connection. By analyzing and comparing the dimensional data information, it can be determined whether the size of the bogie meets the design requirements. Sensing technologies, such as laser measurement technology and ultrasonic measurement technology, can be introduced to improve the precision and accuracy of measurement; at the same time, combined with artificial intelligence technology, an intelligent detection system can be established to realize automated bogie detection and data analysis, and improve production efficiency and product quality. At the same time, cloud data storage and remote monitoring technology can also be used to achieve real-time monitoring and remote data analysis of the bogie detection process, and improve the intelligent level of production management.

[0044] Step S106, determining the factory inspection result of the bogie based on the character identification information, installation status information and dimension data information.

[0045] Among them, the factory inspection results are used to indicate whether the bogie meets the preset factory inspection standards.

[0046] The above-mentioned preset factory inspection standard may refer to a pre-set factory standard for a bogie. A bogie that meets the preset factory inspection standard can be shipped, and a bogie that does not meet the preset factory inspection standard needs to be adjusted or modified.

[0047] In an optional embodiment, during the factory inspection of the bogie, the factory inspection result can be determined based on the character identification information, installation status information and dimension data information. Specifically, the production information and quality control information of the bogie can be determined through the character identification information on the bogie, including the manufacturing date, manufacturer, model, etc., which can help the inspection personnel understand the manufacturing process and material of the bogie, and whether it meets the prescribed standards. The inspection personnel can check the installation status of the bogie based on the installation status information, including the tightening of the connecting bolts, the stability of the connection between the crossbeam and the car body, etc., which can help determine whether the bogie meets the standard requirements during installation to ensure the safety and reliability of the bogie. The information of the gap data of the second preset part in the bogie of the bogie can be determined through the dimension data information. These data generally include the size and position of the gap. By comprehensively analyzing the character identification information, the installation status information and the dimension data information, the inspection personnel can determine the factory inspection result of the bogie, that is, whether the bogie meets the preset factory inspection standard. If the bogie meets the standard requirements, it can pass the inspection and leave the factory; if there is a problem, it needs to be repaired or remanufactured. The above process may include using high-precision measuring instruments to measure dimensional data, using computer-aided design software to simulate and analyze the structure of the bogie, and using non-destructive testing technology to check whether there are cracks or fatigue damage inside the bogie. At the same time, artificial intelligence technology can also be used to automatically identify and analyze character identification information and installation status information to improve detection efficiency and accuracy, so as to further improve the factory inspection level of the bogie.

[0048] In the process of factory inspection of the bogie, the present application can determine the character identification information, installation status information and dimension data information of the bogie based on the detected bogie detection information, and then determine the factory inspection result. Through the character identification information on the bogie, the production information and quality control information of the bogie can be determined, which is convenient for the process tracking of quality inspection; the inspection personnel can check the installation status of the bogie based on the installation status information, which can help determine whether the bogie meets the standard requirements during installation, and the information of the clearance data of the second preset part in the bogie of the bogie can be determined through the dimension data information to ensure the safety and reliability of the bogie. Through comprehensive analysis of the character identification information, installation status information and dimension data information, the inspection personnel can determine the factory inspection result of the bogie, that is, whether the bogie meets the preset factory inspection standard, improve the inspection efficiency and accuracy of the bogie, so as to further improve the factory inspection level of the bogie, and at the same time reduce the influence of human factors on the inspection results, improve the quality and safety of the bogie, and then solve the technical problem of low inspection efficiency of factory inspection of the bogie in the related technology.

[0049] Optionally, determining the character identification information of the bogie based on the bogie detection information includes: performing text box positioning on the bogie image data in the bogie detection information to obtain an initial text box; performing text box correction on the initial text box to obtain a target text box; performing character recognition on the character identification in the target text box to obtain character identification information.

[0050] In an optional embodiment, in the factory inspection of the bogie, the character identification information of the bogie can be determined based on the bogie detection information. Specifically, the detection information of the bogie, including the image data of the bogie, can be obtained through a sensor or a camera and other equipment. The acquired bogie image data can be preprocessed, including denoising, grayscale, binarization and other operations for subsequent processing. The preprocessed image data can be positioned for the text box, and a target detection algorithm can be used to detect the text box in the bogie image through a trained model. After obtaining the initial text box, there may be some errors or inaccuracies. The initial text box can be corrected, and a text box correction algorithm such as rotation correction, boundary correction and other methods can be used to obtain the target text box. Then, the character identification in the target text box can be recognized, and character recognition can be performed through a deep learning model to obtain character identification information.

[0051] The above steps may include the optimization and training of the character recognition model, such as adding more training data, adjusting the model structure, adjusting the hyperparameters, etc. to improve the accuracy of character recognition; the semantic segmentation algorithm may also be combined to further improve the accuracy of text box positioning, and the target tracking technology may be introduced to track the character identification information on the bogie. In the above steps, by processing the bogie image data, the area where the character identification on the bogie is located can be accurately located, providing accurate location information for subsequent character recognition. The initial text box is corrected to obtain the target text box. By correcting the initial text box, the position and size of the text box can be made more accurate, thereby improving the recognition accuracy of the character identification information.

[0052] Optionally, determining the installation status information of the bogie based on the bogie detection information includes: obtaining a standard installation database, wherein the standard installation database is used to represent a database composed of standard positions of multiple item points in the bogie; matching the two-dimensional image of the item points in the bogie detection information with the standard installation database to obtain the installation status information.

[0053] The above-mentioned items may refer to various parts and components that need to be tested and evaluated. These items may include the structure, connecting parts, lubrication system, transmission system, protective devices, etc. of the bogie. Testing these items can ensure that the bogie complies with relevant standards and regulations during the production process, thereby ensuring its quality and safety. By testing various points of the bogie, potential problems can be discovered and resolved in a timely manner to ensure that the bogie can operate normally and drive safely during use. The specific items can be determined according to actual needs and are not limited here.

[0054] In an optional embodiment, during the factory inspection of the bogie, a standard installation database can be obtained. The standard installation database is a database containing standard position information of multiple points in the bogie, which can be established in advance by the manufacturer during the design and manufacturing process. When designing and manufacturing the bogie, the standard position of each point can be determined in advance, and this information can be organized into a standard installation database, which contains the coordinate information, size information, and relative position relationship between each point and other points. When performing factory inspection, various devices can be used to obtain the detection information of the bogie, including two-dimensional images of each point, which contain the position, shape, and other feature information of the point. Then, the two-dimensional image of the point in the bogie detection information can be matched with the standard installation database, and the matching process can be achieved through computer vision and image processing technology. First, the image in the bogie detection information can be processed to extract key feature points, and the position and feature description of the key feature points can be calculated. Then, these feature points are compared with the information in the standard installation database to find the best matching point. Then, the installation status information of the bogie can be obtained based on the matching results, including the actual position deviation, shape deviation, and overall assembly quality of each item. By analyzing the installation status information, the assembly quality of the bogie can be evaluated and problems can be discovered and solved in a timely manner.

[0055] Optionally, the two-dimensional image of item points in the bogie detection information is matched with the standard installation database to obtain installation status information, including: matching the two-dimensional image of the item points with the standard installation database to obtain item point matching results, wherein the item point matching results at least include the correspondence between actual item points in the two-dimensional image of the item points and standard item points in the standard installation database; determining the item point similarity between the actual item points and the standard item points in the matching results; and determining the installation status information based on the item point similarity.

[0056] In an optional embodiment, in the field of factory inspection of bogies, the two-dimensional image of the item point in the bogie detection information can be matched with the standard installation database. Specifically, the two-dimensional image of the item point in the bogie detection information can be preprocessed first, including noise removal, image enhancement and other operations to improve the accuracy of matching. A standard installation database can be established, which contains the two-dimensional images of the item points of various standard bogies and their corresponding standard item point information. Then, the feature extraction of the two-dimensional image of the item point and the standard item point in the database can be performed, for example, using an algorithm to extract key points and descriptors. Then, the features of the actual item point can be matched with the features of the standard item point in the database, and the matching can be performed using a feature matching algorithm. Then, the matching relationship can be determined, and the corresponding relationship between the actual item point and the standard item point can be determined based on the result of the feature matching, and a matching result can be established. Then, the item point similarity can be calculated based on the corresponding relationship between the actual item point and the standard item point in the matching result, and the calculation can be performed using methods such as distance measurement and similarity measurement. Finally, the installation status information of the bogie can be determined based on the item point similarity, such as whether it meets the standard, whether there is a deviation, etc.

[0057] In the above process, deep learning methods can be used to learn and match features to improve the accuracy and robustness of matching; image processing technology can be combined to further optimize and process the matching results to improve the accuracy of matching; multi-sensor information fusion methods can also be introduced to verify and correct the item point matching results in combination with other sensor data to improve the reliability of matching.

[0058] Optionally, determining the dimensional data information of the bogie based on the bogie detection information includes: obtaining a standard dimension database, wherein the standard dimension database is used to represent a database composed of standard dimensions of multiple item points in the bogie; comparing the three-dimensional information of the item points in the bogie detection information with the standard dimension database to obtain the dimensional data information.

[0059] In an optional embodiment, in the field of factory inspection of the bogie, the dimension data information of the bogie can be determined based on the bogie detection information. Specifically, a standard dimension database can be established first, which includes the standard dimension data of multiple points in the bogie. These standard dimension data can be obtained by measuring and analyzing a large number of bogies to ensure that the database contains standard dimension information of bogies of various types and specifications. Then, the three-dimensional coordinate information of each point on the surface of the bogie can be obtained by using a detection device, and the position information of the point can be used to describe the shape and size characteristics of the bogie. Then, by comparing the three-dimensional information of the point in the bogie detection information with the data in the standard dimension database, the standard dimension data matching it can be found. The comparison process can use various matching algorithms and data processing techniques, such as the least squares method, the nearest neighbor algorithm, etc., to ensure the accuracy and reliability of the dimension data information. Finally, by comparing the standard dimension data obtained, the actual dimension data information of each point of the bogie can be determined, and these dimension data can be used to evaluate the quality and performance of the bogie, as well as for subsequent detection and analysis.

[0060] In the above process, improved matching algorithms and data processing technologies can be used to improve the accuracy and stability of dimensional data information; machine learning and artificial intelligence technologies can be introduced to realize automated dimensional data extraction and analysis processes; other sensor data, such as stress sensors, temperature sensors, etc., can also be combined to comprehensively evaluate and monitor the performance of the bogie, which can improve the detection efficiency and accuracy of the bogie and ensure product quality and safety.

[0061] Optionally, the bogie to be subjected to factory inspection is controlled to be in a preset position of the factory inspection device, and the bogie is detected to obtain bogie detection information, including: pushing the bogie into the factory inspection device along the slide rail, and when the bogie reaches the preset position, fixing the bogie by a blocking device on the factory inspection device, and detecting the bogie to obtain bogie detection information.

[0062] In an optional embodiment, during the factory inspection of the bogie, the bogie to be inspected can be controlled to be at a preset position of the factory inspection device. Specifically, the bogie to be inspected can be pushed into the factory inspection device along the slide rail to ensure that the bogie can be accurately docked with the inspection device. Before the bogie reaches the preset position, the moving speed and direction of the bogie can be controlled by the control system to ensure that the bogie can be smoothly pushed into the preset position. When the bogie reaches the preset position, the blocking device on the factory inspection device will automatically start to fix the position of the bogie to prevent it from moving or shaking during the inspection process. Then, the bogie can be detected by the inspection device, including detecting various parts of the bogie, such as the steering shaft, wheel hub, tire, etc., and obtaining various parameters and indicators of the bogie, such as bearing clearance, tire wear, steering angle, etc., through sensors or other detection equipment. After the inspection is completed, according to the obtained bogie detection information, the state of the bogie can be evaluated and determined to determine whether it meets the factory standards, so as to carry out subsequent processing or adjustment.

[0063] The technical solution proposed in the present application is explained below in combination with an optional application scenario. The present application proposes a sixth-generation bogie (K6) bogie online information recognition and error and missing installation detection technology. With the development of the railway freight car industry in terms of intelligence and digitalization, technical bottlenecks such as data models and artificial intelligence (AI) have been broken through. An intelligent digital detection technology for bogie completion is studied to achieve online detection of bogies and identification of key important information of bogie completion, improve the level of prevention of misinstallation, wrong installation, missing installation, etc., and improve the bogie detection efficiency.

[0064] The online information recognition and missing / error detection technology for the K6 bogie is an online measurement and collection function for the K6 bogie data and identification. It utilizes the cooperation of the transmission device, manipulator and visual system to quickly and accurately collect the image information of preset item points within the specified time.

[0065] Specifically, the identification recognition technology can include the recognition of numbers and letters such as steel stamp numbers, nameplates, and convex and concave text on castings and forgings of bogie products. The deep learning model can be used to recognize the characters on the corresponding parts of the bogie, and the end acquisition module can be moved to the corresponding identification acquisition point using a slide rail and a robotic arm to collect the two-dimensional image of the identification.

[0066] The logo recognition technology can be divided into the following steps: text area detection, pre-processing such as denoising the bogie image data, and using the text detection model to roughly locate the text area; text frame correction, due to different shooting angles, the character area may be curved, tilted, etc., and the text frame correction is performed using perspective transformation, which can map the character area under different conditions to a unified perspective for recognition and improve robustness; character content recognition, which can be performed through a lightweight neural network, can effectively recognize multiple languages ​​and characters, while taking into account the recognition speed. The above technical routes are used for logo character recognition, which has higher controllability and stability.

[0067] The state recognition technology can include the installation status of the corresponding parts of the bogie, such as whether the cotter pin is open, the spring is installed in the right position, etc. The end acquisition module is moved to the corresponding item point acquisition point using a slide rail and a mechanical arm to collect a two-dimensional image of the item point. The item point to be detected is compared with the standard installed bogie template database to determine whether the item point is installed correctly.

[0068] The state recognition technology can be divided into the following steps: creating a standard installation database, collecting data from various points on the bogies that have been manually reviewed as correctly installed, and creating a standard database; matching points, using a deep learning feature matching network to match the various points of the bogie to be inspected with the standard database; comparison-based state recognition, which can use a comparison detection algorithm to determine the differences between the corresponding points to be inspected and the points in the template library, and evaluate whether the components are installed correctly based on the similarity.

[0069] Dimension measurement technology can include the measurement of dimensional data such as the gap of the corresponding parts of the bogie. The end acquisition module can be moved to the corresponding measurement point using a slide rail and a robotic arm to collect the three-dimensional information of the item point. The 3D item point to be detected is segmented out in the original bogie area to determine whether the item point meets the dimensional requirements.

[0070] The dimension measurement technology can be divided into the following steps: Make a standard installation database: collect three-dimensional (3D) point cloud data of various points of the bogies that have been manually reviewed as correctly installed and make a set of standard databases; match the points, and use the deep learning feature matching network to match the points of the bogie to be inspected with the standard database; Dimension measurement based on 3D point clouds: Use traditional point cloud fitting segmentation algorithms or deep learning segmentation networks to accurately segment the corresponding points to be inspected, and calculate the size of the corresponding points based on the point cloud information of the segmentation results. Through the above technical route, the template matching method is used to locate the points, which can avoid the large amount of manual labeling costs in the model training stage of the target detection technology solution, and the use of high-precision 3D cameras for data collection can obtain higher-dimensional and more comprehensive dimension information.

[0071] The technical solution proposed in this application can improve detection efficiency and reduce labor costs. Through the automation system, this application improves the detection speed, reduces the dependence on manual labor, and reduces long-term labor costs; it can achieve labor cost savings, the automation system can operate around the clock, reduces the number of manual shifts, and reduces labor cost expenditures; it can achieve efficiency improvement, and technologies such as visual recognition, AI analysis and laser measurement can complete complex inspection tasks in a short time, which can significantly improve work efficiency compared to manual operation.

[0072] The technical solution proposed in this application can reduce rework and maintenance costs. Incorrect installation and labeling problems may be overlooked in traditional inspection methods, leading to later repairs or rework. Through precise automated inspection, problems can be discovered at an early stage, reducing rework and large-scale repairs caused by incorrect installation. Reduce maintenance costs. By discovering problems at an early stage, the need for large-scale repairs of faulty bogies in subsequent operations is reduced, saving maintenance costs. Reduce rework costs, reduce product rework caused by missed inspections and incorrect inspections, and reduce waste of materials and work hours.

[0073] The technical solution proposed in this application can reduce downtime and improve productivity. Automated inspection reduces downtime, thereby improving production continuity, especially under high-load production conditions, and can ensure efficient delivery; continuous operation, the automated inspection system can run uninterruptedly, reducing human errors and rest time, and improving overall production efficiency; productivity is improved through rapid detection and timely feedback, reducing product delivery delays and improving the overall efficiency of production.

[0074] Figure 2 is a schematic diagram of an optional factory inspection device for a bogie according to an embodiment of the present invention, such as Figure 2 As shown, the factory inspection device may include an upper manipulator 201 , an upper manipulator supporting device 202 , a lower manipulator 203 , a lower manipulator supporting device 204 and a conveying and positioning device 205 .

[0075] The above-mentioned conveying and positioning device may include a blocking device and the like.

[0076] Figure 3 is a schematic diagram of an optional factory inspection method for a bogie according to an embodiment of the present invention, such as Figure 3 As shown, during the factory inspection of the bogie, the bogie pushing-in, character identification, installation status and dimension data inspection, software processing, data display and uploading, and bogie pushing-out can be performed in sequence.

[0077] Figure 4 is a schematic diagram of an optional method of detecting a bogie using a factory detection device according to an embodiment of the present invention, such as Figure 4As shown, during the inspection of the bogie using the factory inspection device, the product can be pushed in along the slide rail, fixed by the blocking device after reaching the inspection position, and pushed out along the slide rail after the inspection is completed.

[0078] According to another aspect of an embodiment of the present invention, a factory inspection device for a bogie is also provided. The device can execute the factory inspection method for the bogie of the above embodiment. The specific implementation method and preferred application scenario are the same as those of the above embodiment and will not be repeated here.

[0079] Figure 5 is a schematic diagram of a factory inspection device for a bogie according to an embodiment of the present application, such as Figure 5 As shown, the device includes the following: a detection module 502 , a first determination module 504 , and a second determination module 506 .

[0080] Among them, the detection module is used to control the bogie to be subjected to factory inspection to be in a preset position of the factory inspection device, and detect the bogie to obtain the bogie detection information; the first determination module is used to determine the character identification information, installation status information and dimension data information of the bogie based on the bogie detection information, wherein the character identification information is used to characterize the identification characters on the bogie, the installation status information is used to characterize the installation status of the first preset position in the bogie, and the dimension data information is used to represent the gap data of the second preset part in the bogie; the second determination module is used to determine the factory inspection result of the bogie based on the character identification information, the installation status information and the dimension data information, wherein the factory inspection result is used to characterize whether the bogie meets the preset factory inspection standard.

[0081] The detection module includes: a blocking device, which is used to fix the bogie when the bogie enters the factory detection device along the slide rail and reaches a preset position.

[0082] Among them, the first determination module is also used to perform text box positioning on the bogie image data in the bogie detection information to obtain an initial text box; perform text box correction on the initial text box to obtain a target text box; perform character recognition on the character identifier in the target text box to obtain character identifier information.

[0083] Among them, the first determination module is also used to obtain a standard installation database, wherein the standard installation database is used to represent a database composed of standard positions of multiple item points in the bogie; the two-dimensional image of the item points in the bogie detection information is matched with the standard installation database to obtain installation status information.

[0084] Among them, the first determination module is also used to match the item point two-dimensional image with the standard installation database to obtain the item point matching results, wherein the item point matching results at least include the correspondence between the actual item points in the item point two-dimensional image and the standard item points in the standard installation database; determine the item point similarity between the actual item points and the standard item points in the matching results; and determine the installation status information based on the item point similarity.

[0085] Among them, the first determination module is also used to obtain a standard size database, wherein the standard size database is used to represent a database composed of standard sizes of multiple item points in the bogie; the three-dimensional information of the item points in the bogie detection information is compared with the standard size database to obtain size data information.

[0086] Among them, the detection module is also used to push the bogie along the slide rail into the factory detection device. When the bogie reaches the preset position, the bogie is fixed by the blocking device on the factory detection device, and the bogie is detected to obtain the bogie detection information.

[0087] An embodiment of the present application further provides an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of the present invention when running.

[0088] The above-mentioned memory may refer to a device inside a computer for storing data and programs, and may include memory, hard disk, etc., wherein the memory may be used to temporarily store running programs and data, the hard disk may be used to store programs and data for a long time, and the memory may be used to enable the computer to read and write data, and execute programs; the above-mentioned processor may be responsible for executing instructions in computer programs and performing data processing, and may be responsible for controlling and executing various operations, including arithmetic operations, logical operations, data transmission, etc.

[0089] An embodiment of the present application further provides a computer-readable storage medium, which includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the methods in various embodiments of the present invention.

[0090] The above-mentioned computer storage medium may refer to a medium in a computer memory used to store certain discontinuous physical quantities. Computer storage media mainly include semiconductors, magnetic cores, magnetic drums, magnetic tapes, laser disks, etc.; the stored program included in the computer-readable storage medium may be a set of instructions that can be recognized and executed by a computer, running on an electronic computer, and is an information tool that meets certain needs of people.

[0091] An embodiment of the present application further provides a computer program product, including a computer program, which implements the methods in various embodiments of the present invention when executed by a processor.

[0092] The above-mentioned computer program product may refer to a software program that has been written, tested and released and can be run on a computer or other device. The computer program product may include an application, an operating system, tool software, etc., which is used to implement specific functions or solve specific problems.

[0093] An embodiment of the present application further provides a computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0094] The above-mentioned non-volatile computer-readable storage medium may refer to a medium for storing data. The non-volatile computer-readable storage medium can keep the data from being lost when the power is off, and can be used to store long-term data, such as operating systems, applications, and user files. The non-volatile storage medium may include hard disk drives, solid-state drives, optical disks, and flash memory storage devices, etc.

[0095] The embodiments of the present application further provide a computer program, which implements the methods in the above-mentioned embodiments of the present invention when executed by a processor.

[0096] The above-mentioned computer program may refer to a collection of instructions used to tell a computer to perform a specific task or operation. A computer program may be written by a programmer using a specific programming language and may include algorithms, data structures, logic, and control flows. A computer program may be used for a variety of purposes, including application software, operating systems, and the like.

[0097] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0098] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0099] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0100] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0101] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0102] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for factory inspection of a bogie, characterized in that: include: Controlling the bogie to be subjected to factory inspection to be in a preset position of the factory inspection device, and detecting the bogie to obtain bogie detection information; Determining character identification information, installation status information and dimension data information of the bogie based on the bogie detection information, wherein the character identification information is used to characterize the identification characters on the bogie, the installation status information is used to characterize the installation status of a first preset part in the bogie, and the dimension data information is used to represent the clearance data of a second preset part in the bogie; Based on the character identification information, the installation status information and the dimension data information, a factory inspection result of the bogie is determined, wherein the factory inspection result is used to indicate whether the bogie meets a preset factory inspection standard.

2. The method for factory inspection of a bogie according to claim 1, characterized in that: Determining character identification information of the bogie based on the bogie detection information includes: Performing text box positioning on the bogie image data in the bogie detection information to obtain an initial text box; Performing text frame correction on the initial text frame to obtain a target text frame; Perform character recognition on the character identifier in the target text box to obtain the character identifier information.

3. The method for factory inspection of a bogie according to claim 1, characterized in that: Determining the installation status information of the bogie based on the bogie detection information includes: Acquire a standard installation database, wherein the standard installation database is used to represent a database composed of standard positions of a plurality of item points in the bogie; The two-dimensional image of the item points in the bogie detection information is matched with the standard installation database to obtain the installation status information.

4. The method for factory inspection of a bogie according to claim 3, characterized in that: Matching the two-dimensional image of the item points in the bogie detection information with the standard installation database to obtain the installation status information includes: Performing item point matching on the item point two-dimensional image and the standard installation database to obtain an item point matching result, wherein the item point matching result at least includes a correspondence between actual item points in the item point two-dimensional image and standard item points in the standard installation database; Determining the item point similarity between the actual item point and the standard item point in the matching result; The installation status information is determined based on the item point similarity.

5. The method for factory inspection of a bogie according to claim 1, characterized in that: Determining the dimension data information of the bogie based on the bogie detection information includes: Acquire a standard size database, wherein the standard size database is used to represent a database composed of standard sizes of multiple points in the bogie; The three-dimensional information of the item points in the bogie detection information is compared with the standard dimension database to obtain the dimension data information.

6. The method for factory inspection of a bogie according to claim 1, characterized in that: Controlling a bogie to be subjected to factory inspection to be at a preset position of a factory inspection device, and detecting the bogie to obtain bogie detection information, including: The bogie is pushed into the factory inspection device along the slide rail. When the bogie reaches the preset position, the bogie is fixed by the blocking device on the factory inspection device, and the bogie is detected to obtain bogie detection information.

7. A factory inspection device for a bogie, characterized in that: include: A detection module, used to control the bogie to be subjected to factory inspection to be at a preset position of the factory inspection device, and to detect the bogie to obtain bogie detection information; a first determination module, configured to determine character identification information, installation status information, and dimension data information of the bogie based on the bogie detection information, wherein the character identification information is used to characterize an identification character on the bogie, the installation status information is used to characterize an installation status of a first preset portion in the bogie, and the dimension data information is used to represent clearance data of a second preset portion in the bogie; The second determination module is used to determine the factory inspection result of the bogie based on the character identification information, the installation status information and the dimension data information, wherein the factory inspection result is used to indicate whether the bogie meets the preset factory inspection standard.

8. The factory inspection device for bogies according to claim 7, characterized in that: The detection module comprises: The blocking device is used to fix the bogie when the bogie enters the factory inspection device along the slide rail and reaches the preset position.

9. An electronic device, characterized in that: include: A memory storing an executable program; A processor is used to run the program, wherein the program, when running, executes the factory inspection method for the bogie described in any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored executable program, wherein when the executable program is run, the device where the storage medium is located is controlled to execute the factory inspection method for the bogie according to any one of claims 1 to 6.

11. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the factory inspection method for a bogie according to any one of claims 1 to 6.

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