CN114413774A - Method and device for measuring assembly gap width of bogie to be measured in railway wagon - Google Patents
Method and device for measuring assembly gap width of bogie to be measured in railway wagon Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
The application relates to a method and a device for measuring the assembly gap width of a bogie to be measured in a railway wagon, measuring equipment, a system for measuring the assembly gap width of the bogie to be measured in the railway wagon and a storage medium. The method comprises the following steps: acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in a railway wagon; matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fit algorithm to obtain combined three-dimensional point cloud data; and analyzing the gap width of the combined three-dimensional point cloud data to obtain the width of the target assembly gap of the bogie to be measured. By adopting the method, the accuracy of measuring the width of the assembly gap of the train bogie in the railway wagon can be improved.
Description
Technical Field
The application relates to the technical field of vision measurement, in particular to a method and a device for measuring the assembly gap width of a bogie to be measured in a railway wagon, measuring equipment, a system for measuring the assembly gap width of the bogie to be measured in the railway wagon and a storage medium.
Background
The railway is a major artery of traffic transportation, the development of the railway industry of China is different day by day in recent years, and with the continuous increase of the running speed of railway trucks, the running safety of trains faces huge challenges. Because of the wide range of operators in China and the large difference of working conditions of different lines, the width of each assembling gap of the train bogie in the railway wagon is one of the important factors influencing the safety of the train.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the accuracy of the measurement of the fitting gap width of a train bogie in a railway wagon is low.
Disclosure of Invention
Therefore, it is necessary to provide a method, a device and a measuring apparatus for measuring the assembly gap width of a bogie to be measured in a railway wagon, a system for measuring the assembly gap width of the bogie to be measured in the railway wagon, and a storage medium, in order to solve the problem of low accuracy in the measurement of the assembly gap width of a train bogie in the railway wagon in the conventional technology.
In a first aspect, there is provided a method for measuring an assembly gap width of a bogie to be measured in a railway wagon, the method comprising:
acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in a railway wagon;
matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fit algorithm to obtain combined three-dimensional point cloud data;
and analyzing the gap width of the combined three-dimensional point cloud data to obtain the width of the target assembly gap of the bogie to be measured.
In one embodiment, the step of matching and fitting the target three-dimensional point cloud data and the standard CAD model further comprises: acquiring standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in a railway wagon; and performing reverse design processing on the standard three-dimensional point cloud data according to the maximum width of the target assembly clearance of the standard bogie to obtain a standard CAD model.
In one embodiment, the step of performing the gap width analysis on the combined three-dimensional point cloud data further comprises: if the width of the target assembly gap of the bogie to be tested is larger than the maximum width value, judging that the bogie to be tested is unqualified; and if the width of the target assembly gap of the bogie to be measured is less than or equal to the maximum width value, judging that the bogie to be measured is qualified.
In one embodiment, the target assembly clearance of the bogie to be tested comprises a clearance between a stop key and a bearing outer ring of the bogie to be tested, a longitudinal clearance between a side bearing seat and a side bearing box, a clearance between a base plate and a cross beam support, a clearance between the base plate and an adjusting base plate, a clearance between a side frame bearing saddle bearing surface, a radial clearance between a thrust shoulder and a front cover, a clearance between a bearing saddle flange and an outer front cover or a clearance between the bearing outer ring and a guide frame.
In a second aspect, a device for measuring the assembly gap width of a bogie to be measured in a railway wagon is provided, and the device comprises a data acquisition module, a matching fitting module and a width analysis module.
The data acquisition module is used for acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in the railway wagon; the matching and fitting module is used for matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fitting algorithm to obtain combined three-dimensional point cloud data; the width analysis module is used for carrying out gap width analysis on the combined three-dimensional point cloud data to obtain the width of a target assembly gap of the bogie to be measured.
In one embodiment, the apparatus further comprises an inverse design module;
the data acquisition module is also used for acquiring standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in the railway wagon; and the reverse design module is used for performing reverse design processing on the standard three-dimensional point cloud data according to the maximum width of the target assembly clearance of the standard bogie to obtain a standard CAD model.
In one embodiment, the apparatus further comprises a quality determination module.
The quality judging module is used for judging that the bogie to be tested is unqualified when the width of the target assembly gap of the bogie to be tested is larger than the maximum width value; the quality judging module is also used for judging that the bogie to be tested is qualified when the width of the target assembling clearance of the bogie to be tested is less than or equal to the maximum width.
In a third aspect, a measurement device is provided, which comprises a memory and a processor, the memory storing a computer program, the processor implementing the steps of any of the above method embodiments when executing the computer program.
In a fourth aspect, a system for measuring the assembly gap width of a bogie to be measured in a railway wagon is provided, the system comprising data acquisition equipment and measurement equipment in any one of the above-mentioned equipment embodiments; wherein, the data acquisition equipment is connected with the measuring equipment; the data acquisition equipment is used for acquiring target three-dimensional point cloud data.
In a fifth aspect, a computer-readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the above-described method embodiments.
The method, the device and the equipment for measuring the assembly gap width of the bogie to be measured in the railway wagon, the system for measuring the assembly gap width of the bogie to be measured in the railway wagon and the storage medium are used for acquiring target three-dimensional point cloud data of a target assembly gap of the bogie to be measured in the railway wagon; then, matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fitting algorithm to obtain combined three-dimensional point cloud data; finally, performing gap width analysis on the combined three-dimensional point cloud data to accurately obtain the width of a target assembly gap of the bogie to be measured; the problems of low efficiency and large error of manually measuring the width of the target assembly gap are solved, and the efficiency and the accuracy of measuring the width of the assembly gap of the bogie to be measured are improved.
Drawings
FIG. 1 is a schematic diagram of a first process of a method for measuring a fitting gap width of a bogie to be measured in a railway wagon according to an embodiment;
FIG. 2 is a second flowchart of a method for measuring a set-up gap width of a truck to be measured in a railway wagon according to an embodiment;
FIG. 3 is a third flowchart of a method for measuring an assembly gap width of a truck to be measured in a railway wagon according to an embodiment;
FIG. 4 is a first block diagram of an exemplary apparatus for measuring a fitting gap width of a bogie to be measured in a railway wagon;
FIG. 5 is a second block diagram of an exemplary apparatus for measuring a fitting gap width of a bogie to be measured in a railway wagon;
FIG. 6 is a third block diagram of an exemplary apparatus for measuring a fitting gap width of a bogie to be measured in a railway wagon;
FIG. 7 is an internal structural view of a measuring apparatus in one embodiment;
fig. 8 is a block diagram of an assembly gap width measuring system of a bogie to be measured in a railway wagon according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a method for measuring an assembly gap width of a bogie to be measured in a railway wagon, which is exemplified by applying the method to a measuring apparatus. In this embodiment, the method includes the following steps 102 to 106.
102, acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in the railway wagon.
Among these, the bogie is one of the most important parts in the vehicle structure of a railway wagon. The measuring equipment can acquire target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in the railway wagon from the data acquisition equipment.
In a specific example, the data acquisition device is connected with the measurement device, and the data acquisition device can be arranged at a position corresponding to a target assembly gap of the bogie to be measured, and is used for acquiring target three-dimensional point cloud data of the target assembly gap of the bogie to be measured. And then, the measuring equipment can obtain the target three-dimensional point cloud data of the target assembly clearance of the bogie to be measured in the railway wagon through the data acquisition equipment. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.
In one embodiment, the target assembly clearance of the bogie to be tested comprises a clearance between a stop key and a bearing outer ring of the bogie to be tested, a longitudinal clearance between a side bearing seat and a side bearing box, a clearance between a base plate and a cross beam support, a clearance between the base plate and an adjusting base plate, a clearance between a side frame bearing saddle bearing surface, a radial clearance between a thrust shoulder and a front cover, a clearance between a bearing saddle flange and an outer front cover or a clearance between the bearing outer ring and a guide frame. Therefore, the applicability and the convenience of the method for measuring the width of the assembly gap of the bogie to be measured in the railway wagon are improved through the target transfer gap of various racks to be measured.
In a specific example, the gap between the bearing surfaces of the side frames of the bogie to be tested can be divided into a gap between the bearing surfaces of the side frames of K2 and a gap between the bearing surfaces of the side frames of K6 according to the types of bearing saddles; the radial gap between the thrust retaining shoulder of the bogie to be tested and the front cover can be divided into a radial gap between the thrust retaining shoulder of K2 and the front cover and a radial gap between the bearing surface of a K6 side frame bearing saddle according to the type of the bearing saddle; the gap between the bearing saddle flange of the bogie to be tested and the outer side front cover can be divided into a gap between the K2 bearing saddle flange and the outer side front cover and a gap between the K6 bearing saddle flange and the outer side front cover according to the type of the bearing saddle; the gap between the bearing outer ring of the bogie to be tested and the guide frame can be divided into a gap between the bearing outer ring of K2 and the guide frame and a gap between the bearing outer ring of K6 and the guide frame according to the type of the bearing adapter. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.
And 104, matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fitting algorithm to obtain combined three-dimensional point cloud data.
The measuring equipment can carry out accurate matching and fitting processing on the target three-dimensional point cloud data of the target assembly clearance of the bogie to be measured and the standard CAD model according to the reference alignment algorithm and the optimal fitting algorithm, so that combined three-dimensional point cloud data is obtained.
In one embodiment, as shown in fig. 2, the step of matching and fitting the target three-dimensional point cloud data and the standard CAD model further includes step 100 and step 101.
Step 100, obtaining standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in the railway wagon.
Wherein, the standard bogie refers to a bogie meeting the corresponding production standard of the bogie. The measuring device can obtain standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in the railway wagon from the data acquisition device. It can be understood that, in the process of measuring the assembly gap width of the bogie to be measured in the railway wagon, the target assembly gap of the standard bogie and the target assembly gap of the bogie to be measured should be the assembly gaps corresponding to the same positions in the bogie.
In a specific example, the data acquisition device is connected with the measurement device, and the data acquisition device can be arranged at a corresponding position of a target assembly gap of the bogie to be measured and used for acquiring standard three-dimensional point cloud data of the target assembly gap of a standard bogie. And then, the measuring equipment can obtain the standard three-dimensional point cloud data of the target assembly clearance of the standard bogie in the railway wagon through the data acquisition equipment. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.
And 101, performing reverse design processing on the standard three-dimensional point cloud data according to the maximum width of the target assembly clearance of the standard bogie to obtain a standard CAD model.
The measuring equipment can set the maximum width of the target assembly gap of the standard bogie according to the corresponding standard of the standard bogie, and carries out reverse design processing on the standard three-dimensional point cloud data according to the maximum width, so as to obtain a standard CAD model.
In a specific example, a measuring device obtains standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in a railway wagon, and triangular tiling and corresponding data simplification are carried out on the standard three-dimensional point cloud data through Geomagic Wrap software, so that patch data are obtained; then, performing data fitting, contour projection, surface patch fitting, surface adjustment and other modes on the surface patch data through a Geomagic Design X and NX software reverse Design algorithm to complete CAD model conversion, and completing CAD model standardization through a size constraint adjustment mode; and then, performing data analysis and comparison according to the maximum width of the target assembly clearance of the standard bogie and the actually measured size of the standard bogie, and optimizing and adjusting the data model to finally obtain the standard CAD model. The above is only a specific example, and the practical application can be flexibly set according to requirements, and is not limited herein.
And 106, carrying out gap width analysis on the combined three-dimensional point cloud data to obtain the width of the target assembly gap of the bogie to be measured.
The measuring equipment carries out matching and fitting processing on the target three-dimensional point cloud data and the standard CAD model to obtain combined three-dimensional point cloud data; and then, the measuring equipment can obtain missing sideline information and missing plane information according to the combined three-dimensional point cloud data, and gap width analysis is carried out on the missing sideline information and the missing plane information, so that the width of the target assembly gap of the bogie to be measured can be obtained.
Based on the method, target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in the railway wagon are obtained; then, matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fitting algorithm to obtain combined three-dimensional point cloud data; finally, performing gap width analysis on the combined three-dimensional point cloud data to accurately obtain the width of a target assembly gap of the bogie to be measured; the problems of low efficiency and large error of manually measuring the width of the target assembly gap are solved, and the efficiency and the accuracy of measuring the width of the assembly gap of the bogie to be measured are improved.
In one embodiment, as shown in fig. 3, the step of performing the gap width analysis on the combined three-dimensional point cloud data further includes step 107 and step 108.
And step 107, if the width of the target assembly gap of the bogie to be measured is larger than the maximum width value, determining that the bogie to be measured is unqualified.
And step 108, if the width of the target assembly gap of the bogie to be tested is smaller than or equal to the maximum width value, judging that the bogie to be tested is qualified.
The measuring equipment analyzes the gap width of the combined three-dimensional point cloud data to obtain the width of a target assembly gap of the bogie to be measured; then, when the width of the target assembly gap of the bogie to be tested is larger than the maximum width value, judging that the bogie to be tested is unqualified; and when the width of the target assembly gap of the bogie to be tested is less than or equal to the maximum width value, judging that the bogie to be tested is qualified; the applicability and the convenience of the measurement of the width of the assembly gap of the bogie to be measured are improved.
It should be understood that although the various steps in the flow charts of fig. 1-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.
In one embodiment, as shown in fig. 4, there is provided an assembly gap width measuring device for a bogie to be tested in a railway wagon, the device comprising a data acquisition module 410, a match fitting module 420 and a width analysis module 430.
The data acquisition module 410 is used for acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in a railway wagon; the matching and fitting module 420 is used for matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a benchmark alignment algorithm and a best fitting algorithm to obtain combined three-dimensional point cloud data; the width analysis module 430 is configured to perform gap width analysis on the combined three-dimensional point cloud data to obtain a width of a target assembly gap of the bogie to be measured.
In one embodiment, as shown in fig. 5, the device for measuring the assembly gap width of the bogie under test further includes an inverse design module 440.
The data acquisition module 440 is further configured to acquire standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in the railway wagon; the reverse design module 440 is configured to perform reverse design processing on the standard three-dimensional point cloud data according to the maximum width of the target assembly gap of the standard bogie, so as to obtain a standard CAD model.
In one embodiment, as shown in fig. 6, the device for measuring the assembly gap width of the bogie under test further includes a quality determination module 450.
The quality determination module 450 is configured to determine that the bogie to be measured is unqualified when the width of the target assembly gap of the bogie to be measured is greater than the maximum width value; the quality determination module 450 is further configured to determine that the bogie to be tested is qualified when the width of the target assembly gap of the bogie to be tested is less than or equal to the maximum width value.
In one embodiment, the target assembly clearance of the bogie to be tested comprises a clearance between a stop key and a bearing outer ring of the bogie to be tested, a longitudinal clearance between a side bearing seat and a side bearing box, a clearance between a base plate and a cross beam support, a clearance between the base plate and an adjusting base plate, a clearance between a side frame bearing saddle bearing surface, a radial clearance between a thrust shoulder and a front cover, a clearance between a bearing saddle flange and an outer front cover or a clearance between the bearing outer ring and a guide frame.
For the specific definition of the device for measuring the assembly gap width of the bogie to be measured in the railway wagon, reference may be made to the above definition of the method for measuring the assembly gap width of the bogie to be measured in the railway wagon, and details are not repeated here. All modules in the device for measuring the assembly gap width of the bogie to be measured in the railway wagon can be completely or partially realized through software, hardware and a combination of the software and the hardware. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a measuring device 820 is provided, the measuring device 820 may be a terminal, and the internal structure thereof may be as shown in fig. 7. The measurement device 820 includes a processor, memory, communication interface, display screen, and input means connected by a system bus. Wherein the processor of the measuring device 820 is used to provide computing and control capabilities. The memory of the measurement device 820 includes a non-volatile storage medium, an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the measurement device 820 is used for performing wired or wireless communication with an external terminal, and the wireless communication may be implemented by WIFI, an operator network, NFC (near field communication), or other technologies. The computer program is executed by a processor to implement a method for measuring an assembly gap width of a bogie to be measured in a railway wagon. The display screen of the measuring device 820 may be a liquid crystal display screen or an electronic ink display screen, and the input device of the measuring device 820 may be a touch layer covered on the display screen, a key, a trackball or a touch pad arranged on the housing of the measuring device 820, or an external keyboard, a touch pad or a mouse, etc.
Those skilled in the art will appreciate that the configuration shown in fig. 7 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the measurement device 820 to which the present application is applied, and that a particular measurement device 820 may include more or fewer components than shown, or some components may be combined, or have a different arrangement of components.
In an embodiment, a measurement device 820 is provided, the measurement device 820 comprising a memory storing a computer program and a processor implementing the steps of any of the above method embodiments when the processor executes the computer program.
In one embodiment, as shown in fig. 8, there is provided a system for measuring a fitting gap width of a bogie to be measured in a railway wagon, the system comprising a data acquisition device 810 and a measuring device 820 of any one of the above-described embodiments of the device; wherein, the data acquisition device 810 is connected with the measurement device 820.
The data acquisition device 810 is used to acquire target three-dimensional point cloud data.
In one of the embodiments, the data acquisition device 810 may be, but is not limited to, a 3D camera; the 3D camera can collect the target three-dimensional point cloud data of the target assembly clearance of the bogie to be measured and the standard three-dimensional point cloud data of the target assembly clearance of the standard bogie at high precision by actively projecting Gray code gratings. Therefore, the accuracy of the measuring result output by the assembly gap width measuring system of the bogie to be measured in the railway wagon is improved.
In an embodiment, a computer-readable storage medium is provided, having stored thereon a computer program, which when executed by a processor, carries out the steps of any of the above-mentioned method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for measuring a fitting clearance width of a bogie to be measured in a railway wagon, the method comprising:
acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in a railway wagon;
matching and fitting the target three-dimensional point cloud data and a standard CAD model based on a reference alignment algorithm and a best fit algorithm to obtain combined three-dimensional point cloud data;
and analyzing the gap width of the combined three-dimensional point cloud data to obtain the width of the target assembly gap of the bogie to be measured.
2. The method of claim 1, wherein the step of matching and fitting the target three-dimensional point cloud data to a standard CAD model is preceded by the step of:
acquiring standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in a railway wagon;
and performing reverse design processing on the standard three-dimensional point cloud data according to the maximum width of the target assembly clearance of the standard bogie to obtain the standard CAD model.
3. The method of claim 2, wherein the step of gap width analyzing the combined three-dimensional point cloud data is further followed by:
if the width of the target assembly gap of the bogie to be tested is larger than the maximum width value, judging that the bogie to be tested is unqualified;
and if the width of the target assembly gap of the bogie to be tested is less than or equal to the maximum width value, judging that the bogie to be tested is qualified.
4. The method of claim 1, wherein the target assembly clearance of the bogie to be tested comprises a clearance between a stop key of the bogie to be tested and a bearing outer ring, a longitudinal clearance between a side bearing seat and a side bearing box, a clearance between a base plate and a cross beam support, a clearance between the base plate and an adjusting base plate, a clearance between a side frame bearing saddle bearing surface, a radial clearance between a thrust shoulder and a front cover, a clearance between a bearing saddle flange and an outer front cover, or a clearance between the bearing outer ring and a guide frame.
5. A device for measuring the width of an assembly gap of a bogie to be measured in a railway wagon, the device comprising:
the data acquisition module is used for acquiring target three-dimensional point cloud data of a target assembly gap of a bogie to be measured in the railway wagon;
the matching and fitting module is used for matching and fitting the target three-dimensional point cloud data and the standard CAD model based on a reference alignment algorithm and a best fitting algorithm to obtain combined three-dimensional point cloud data;
and the width analysis module is used for carrying out gap width analysis on the combined three-dimensional point cloud data to obtain the width of the target assembly gap of the bogie to be measured.
6. The apparatus of claim 5, further comprising an inverse design module;
the data acquisition module is also used for acquiring standard three-dimensional point cloud data of a target assembly clearance of a standard bogie in the railway wagon;
and the reverse design module is used for performing reverse design processing on the standard three-dimensional point cloud data according to the maximum width of the target assembly clearance of the standard bogie to obtain the standard CAD model.
7. The apparatus of claim 6, further comprising:
the quality judgment module is used for judging that the bogie to be tested is unqualified when the width of the target assembly gap of the bogie to be tested is larger than the maximum width value; the quality judging module is also used for judging that the bogie to be tested is qualified when the width of the target assembly gap of the bogie to be tested is less than or equal to the maximum width value.
8. A measuring device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any of claims 1 to 4 when executing the computer program.
9. A system for measuring the fitting gap width of a bogie to be measured in a railway wagon, the system comprising a data acquisition device and a measuring device according to claim 8; wherein the data acquisition equipment is connected with the measurement equipment; the data acquisition equipment is used for acquiring the target three-dimensional point cloud data.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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