CN114373358A - Aviation aircraft maintenance operation simulation training system based on rapid modeling - Google Patents
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Abstract
The invention provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, which comprises: the laser scanning module is used for determining the appearance characteristics of the target aviation aircraft and scanning the appearance characteristics based on a preset laser scanner to obtain target point cloud data; the data processing module is used for processing the target point cloud data and generating a three-dimensional entity model based on a processing result; and the training module is used for determining a target maintenance project and carrying out aviation aircraft maintenance operation simulation training on the target maintenance project based on the three-dimensional solid model. The three-dimensional solid model is obtained by scanning and modeling the target aviation airplane, so that the modeling accuracy is improved, the three-dimensional solid model is guaranteed to provide guarantee for maintenance operation simulation training of crew members, and the maintenance operation simulation training efficiency is improved.
Description
Technical Field
The invention relates to the technical field of aviation simulation teaching, in particular to an aviation aircraft maintenance operation simulation training system based on rapid modeling.
Background
At present, the aircraft maintenance operation capability is one of the most important working capabilities for measuring the aviation crew, the aviation maintenance operation training is an important component for training the basic maintenance skills of the aviation crew, and the aviation basic maintenance operation training usually adopts two training methods of actual assembly and simulation;
however, the aviation equipment mounting equipment is very expensive and belongs to a long-life piece, the aviation equipment cannot be used when the scrapping period or the operation times is reached, meanwhile, the real aviation equipment is precise in requirement and complex in structure, and the basic maintenance mounting training has the conditions of poor economy and low safety;
the simulation training is to train by using simulation equipment consistent with aviation actual equipment, so that the training cost is reduced, and the simulation training is more suitable for teaching rules, but most of the conventional aviation basic maintenance operation simulation training devices are simple and rough, are not systematic, can only realize simple practical operation, do not have real-time intelligent detection and judgment, cannot scientifically check and cannot well realize the simulation training function;
therefore, the invention provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, which is used for obtaining a three-dimensional solid model by scanning and modeling a target aviation aircraft, improving the accuracy of modeling, ensuring that the three-dimensional solid model provides guarantee for maintenance operation simulation training of crew members, and improving the efficiency and accuracy of maintenance operation simulation training.
Disclosure of Invention
The invention provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, which is used for obtaining a three-dimensional solid model by scanning and modeling a target aviation aircraft, improving the accuracy of modeling, ensuring that the three-dimensional solid model provides guarantee for maintenance operation simulation training of crew members, and improving the efficiency and accuracy of the maintenance operation simulation training.
The invention provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, which comprises:
the laser scanning module is used for determining the appearance characteristics of the target aviation aircraft and scanning the appearance characteristics based on a preset laser scanner to obtain target point cloud data;
the data processing module is used for processing the target point cloud data and generating a three-dimensional entity model based on a processing result;
and the training module is used for determining a target maintenance project and carrying out aviation aircraft maintenance operation simulation training on the target maintenance project based on the three-dimensional solid model.
Preferably, the aviation aircraft maintenance operation simulation training system based on rapid modeling, the laser scanning module, includes:
the shape contour determining method is used for respectively carrying out light irradiation on the target aviation aircraft from a target angle based on a preset light source and determining the geometric projection of the target aviation aircraft on a preset background plate based on an irradiation result;
the shape contour determining unit is further configured to extract a geometric shape of the target aircraft based on a geometric projection result, and fit a target contour line of the target aircraft based on the geometric shape, wherein the target contour line includes a top, a bottom, a side, a front, and a rear of a fuselage;
and the appearance characteristic determining unit is used for integrating the target contour line and determining the appearance characteristic of the target aviation aircraft based on the integration result.
Preferably, an aviation aircraft maintenance operation simulation training system based on rapid modeling, the laser scanning module, still include:
the laser scanning unit is used for acquiring a target acquisition visual angle and carrying out laser scanning on the target aviation aircraft from the target acquisition visual angle based on the preset laser scanner to obtain initial point cloud data, wherein the target acquisition visual angle is not unique;
the point cloud data registration unit is used for determining the corresponding relation between the initial point cloud data and the appearance features of the target aviation aircraft and extracting the target feature points of the appearance features of the target aviation aircraft;
the point cloud data registration unit is further used for registering the initial point cloud data through the target feature points based on the corresponding relation to obtain target point cloud data corresponding to the target aviation aircraft.
Preferably, the aviation aircraft maintenance operation simulation training system based on rapid modeling, the data processing module includes:
the point cloud data acquisition unit is used for acquiring the obtained target point cloud data and extracting attribute information of the target point cloud data;
the point cloud data classification unit is used for determining classification indexes of the target point cloud data based on the attribute information, clustering the target point cloud data based on the classification indexes, and labeling each type of clustered target point cloud data, wherein the classification indexes comprise top point cloud data of an aviation aircraft, low point cloud data of the aviation aircraft and side point cloud data of the aviation aircraft;
the coordinate determination unit is used for constructing a three-dimensional coordinate system and sequentially putting each type of target point cloud data into the three-dimensional coordinate system based on the labeling result to obtain a target coordinate value of each point cloud data in the three-dimensional coordinate system;
the hierarchical determining unit is used for dividing the target point cloud data into N layers according to the target coordinate value of each point cloud data in the three-dimensional coordinate system based on the preset coordinate direction in the three-dimensional coordinate system, wherein the values of the target coordinate values corresponding to the target point cloud data in each layer in the preset coordinate direction are consistent;
the characteristic map determining unit is used for reading the target point cloud data corresponding to each layer, determining the characteristic surface corresponding to each layer and obtaining N characteristic surface sets corresponding to the layers;
the model construction unit is used for determining reference point cloud data at the boundary in each layer, constructing a three-dimensional grid based on the reference point cloud data, and simultaneously determining the corresponding relation between the appearance characteristics of the target aviation aircraft and the three-dimensional grid;
the model construction unit is further configured to optimize the three-dimensional grid based on the correspondence to obtain a grid frame corresponding to the target aircraft, and determine texture information in the feature surfaces corresponding to the N layers;
the model construction unit is further configured to fuse the texture information to the integral grid to obtain a three-dimensional entity model corresponding to the target aviation aircraft.
Preferably, the aviation aircraft maintenance operation simulation training system based on rapid modeling, the model construction unit includes:
the proportion determining subunit is used for acquiring a modeling size conversion proportion between the three-dimensional entity model and the target aviation aircraft by the management terminal, and determining specific coordinate values of each target point in the three-dimensional entity model in a three-dimensional coordinate system when one-to-one modeling is performed;
the scaling subunit is used for converting the specific coordinate values of the target points in the three-dimensional coordinate system based on the modeling size conversion ratio to obtain conversion coordinate values;
and the model reconstruction subunit is used for scaling the three-dimensional solid model based on the converted coordinate value to obtain a target three-dimensional solid model.
Preferably, the aviation aircraft maintenance operation simulation training system based on rapid modeling, the training module includes:
the maintenance item determining unit is used for acquiring the regular maintenance item information from a preset database, acquiring the maintenance attribute corresponding to the regular maintenance item information, matching the import mode with the maintenance attribute, and acquiring the allowed display state of the spreadsheet into which the corresponding regular maintenance item information is to be imported;
when the import mode is matched with the display permission state, importing the corresponding regular maintenance project information into the corresponding electronic form for corresponding display according to the import mode;
when the import mode is not matched with the allowed display state, matching the import weight of the import mode from a mode weight mapping table, and judging the changeable state of the import mode;
if the changeable condition meets the changing condition, a new importing mode is exchanged, and the corresponding regular maintenance project information is imported into the spreadsheet for corresponding display;
if the changeable state does not meet the change condition, matching and changing the display condition corresponding to the display permission state according to the change condition, and importing the corresponding regular maintenance project information into the electronic form after matching and changing for corresponding display;
the maintenance item determining unit is used for receiving an item maintenance instruction sent by a management terminal and matching corresponding target maintenance item information from the maintenance item record table based on the item maintenance instruction, wherein the item maintenance instruction comprises the type information of an item to be maintained and a maintenance degree value of the item to be maintained;
and the maintenance unit is used for transmitting the target maintenance project information to a maintenance personnel terminal and reminding the maintenance personnel to carry out simulation training on the target maintenance project based on the three-dimensional entity model.
Preferably, the aviation aircraft maintenance operation simulation training system based on rapid modeling includes:
the simulation training recording unit is used for acquiring the maintenance information of the target maintenance project and determining the time length for the maintenance personnel to carry out the maintenance operation simulation training on the target maintenance project and the maintenance accuracy of the target maintenance project based on the maintenance information;
the simulation training recording unit is used for creating a recording form based on the target maintenance item, the time length used by the simulation training of the maintenance operation and the maintenance accuracy of the target maintenance item, and recording the target maintenance item, the time length used by the simulation training of the maintenance operation and the maintenance accuracy of the target maintenance item based on the recording form;
the evaluation unit is used for evaluating the maintenance degree of the maintainers on the target maintenance project based on the recording result and judging whether the maintainers are qualified in maintaining the target maintenance project based on the evaluation result;
if not, sending a model re-training instruction to the maintainers, and reminding the maintainers to perform simulation training again until the maintainers are judged to be qualified in maintaining the target maintenance project;
otherwise, judging that the maintenance of the target maintenance project by the maintenance personnel is qualified, and finishing the simulation training of the target maintenance project.
Preferably, the aviation aircraft maintenance operation simulation training system based on rapid modeling, the training module, further includes:
the training data acquisition unit is used for acquiring the size information of the three-dimensional entity model, calculating the accuracy rate of modeling the target aviation aircraft based on the size information, and calculating the standard reaching rate of maintenance personnel for maintaining the target maintenance project based on the accuracy rate, and the method specifically comprises the following steps:
the first calculation unit is used for calculating the accuracy of modeling the target aviation aircraft according to the following formula:
wherein alpha represents the accuracy rate of modeling the target aviation classification, and the value range is (0, 1); beta represents a conversion coefficient between the actual size of the target aviation aircraft and the actual size of the three-dimensional solid model; l represents the actual size value of the three-dimensional solid model; k represents the actual size value of the target aircraft; i represents the current panel number of the three-dimensional solid model and the value range is [1, n ]](ii) a n represents the total number of panels of the three-dimensional solid model; siAn area value of an ith panel representing the three-dimensional solid model; τ represents a total panel area value for the target aircraft;
represents an allowable error value and has a value range of (-0.05, 0.05);
the second calculating unit is used for calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project according to the following formula:
wherein mu represents the standard reaching rate of maintenance personnel for maintaining the target maintenance project, and the value range is (0, 1); omega represents an error coefficient, and the value range is (0.05, 0.1); j represents a target maintenance itemThe jth flow in the current list; m represents the total number of the processes in the target maintenance project; sjIndicates the operation steps included in the j-th flow; t is tjA value representing the length of time for the maintenance personnel to complete the jth flow; v represents a standard average speed value corresponding to maintenance reaching time of all target maintenance items by maintenance personnel; t represents a standard total time length value corresponding to the maintenance of all target maintenance items by a maintainer;
the comparison unit is used for comparing the standard reaching rate with a preset standard reaching rate;
if the standard reaching rate is greater than or equal to the preset standard reaching rate, judging that the maintenance operation simulation training of the maintainers reaches the standard;
otherwise, judging that the maintenance operation simulation training of the maintainers does not reach the standard, searching for a target reason, and carrying out the simulation training on the maintainers based on the target reason;
and calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project again based on the training result until the standard reaching rate is greater than or equal to the preset standard reaching rate, and completing the simulation training of the maintenance personnel.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a structural diagram of an aviation aircraft maintenance operation simulation training system based on rapid modeling according to an embodiment of the invention;
FIG. 2 is a structural diagram of a laser scanning module in a rapid modeling-based aviation aircraft maintenance operation simulation training system according to an embodiment of the present invention;
fig. 3 is a structural diagram of a training module in a rapid modeling-based aviation aircraft maintenance operation simulation training system in an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
the embodiment provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, as shown in fig. 1, including:
the laser scanning module is used for determining the appearance characteristics of the target aviation aircraft and scanning the appearance characteristics based on a preset laser scanner to obtain target point cloud data;
the data processing module is used for processing the target point cloud data and generating a three-dimensional entity model based on a processing result;
and the training module is used for determining a target maintenance project and carrying out aviation aircraft maintenance operation simulation training on the target maintenance project based on the three-dimensional solid model.
In this embodiment, the appearance feature refers to the appearance shape of the target aircraft, and may be, for example, the curvature of the aircraft, the width and length of the aircraft, and the like.
In this embodiment, the preset laser scanner is set in advance, and is configured to perform laser scanning on a target object of which a model needs to be built, so as to obtain point cloud data corresponding to the target object.
In this embodiment, the three-dimensional solid model refers to a model obtained by performing solid modeling according to the appearance characteristics of the target aircraft, and is convenient for maintenance operation simulation training.
In this embodiment, the target maintenance item refers to what may be designed in an aircraft maintenance operation, and may be, for example, engine repair, aircraft panel repair, or the like.
The beneficial effects of the above technical scheme are: the three-dimensional solid model is obtained by scanning and modeling the target aviation airplane, so that the modeling accuracy is improved, the three-dimensional solid model is guaranteed to provide guarantee for maintenance operation simulation training of crew members, and the maintenance operation simulation training efficiency is improved.
Example 2:
on the basis of the foregoing embodiment 1, the present embodiment provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, and as shown in fig. 2, the laser scanning module includes:
the shape contour determining method is used for respectively carrying out light irradiation on the target aviation aircraft from a target angle based on a preset light source and determining the geometric projection of the target aviation aircraft on a preset background plate based on an irradiation result;
the shape contour determining unit is further configured to extract a geometric shape of the target aircraft based on a geometric projection result, and fit a target contour line of the target aircraft based on the geometric shape, wherein the target contour line includes a top, a bottom, a side, a front, and a rear of a fuselage;
and the appearance characteristic determining unit is used for integrating the target contour line and determining the appearance characteristic of the target aviation aircraft based on the integration result.
In this embodiment, the preset light source is set in advance, and may be, for example, a lamp or the like.
In this embodiment, the target angles are plural, and are respectively the front, the rear, the upper, the lower, the side, and the like of the target aircraft.
In this embodiment, the preset background plates are set in advance, and the background plates are respectively arranged in front of, behind, above, below, on the side of, etc. the target aircraft.
In this embodiment, the geometric shape refers to the shape structure of the target aircraft, for example, the projection shape of a certain component is an ellipse.
In this embodiment, the target contour line refers to a line corresponding to the outline of the target aircraft
The beneficial effects of the above technical scheme are: by projecting from different angles, the appearance condition of the target aviation aircraft is accurately analyzed, so that the accuracy of analysis modeling is improved, and the guarantee is provided for improving the accuracy of maintenance operation simulation training.
Example 3:
on the basis of the foregoing embodiment 1, the present embodiment provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, and the laser scanning module further includes:
the laser scanning unit is used for acquiring a target acquisition visual angle and carrying out laser scanning on the target aviation aircraft from the target acquisition visual angle based on the preset laser scanner to obtain initial point cloud data, wherein the target acquisition visual angle is not unique;
the point cloud data registration unit is used for determining the corresponding relation between the initial point cloud data and the appearance features of the target aviation aircraft and extracting the target feature points of the appearance features of the target aviation aircraft;
the point cloud data registration unit is further used for registering the initial point cloud data through the target feature points based on the corresponding relation to obtain target point cloud data corresponding to the target aviation aircraft.
In this embodiment, the target collection view refers to a preset scanning angle of the laser scanner, and the collection angle is not unique, so as to ensure that the acquired point cloud data is accurate enough.
In this embodiment, the initial point cloud data refers to point cloud data obtained by directly scanning the target aircraft, and this data cannot ensure that each feature point of the target aircraft is completely accurate.
In this embodiment, the target feature point refers to a region with a distinct local feature in the appearance feature of the target aircraft, and may be, for example, a junction between a window and a fuselage of the aircraft.
In this embodiment, the registration refers to correcting an inaccurate area in the point cloud data according to the feature point, so as to ensure that the obtained point cloud data is accurate.
The beneficial effects of the above technical scheme are: the target aviation aircraft is scanned through the laser scanner, the point cloud data are corrected and registered through the characteristic points of the appearance characteristics, the accuracy of the point cloud data obtained through scanning is improved, and a guarantee is provided for maintenance operation simulation training.
Example 4:
on the basis of the foregoing embodiment 1, the present embodiment provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, and the data processing module includes:
the point cloud data acquisition unit is used for acquiring the obtained target point cloud data and extracting attribute information of the target point cloud data;
the point cloud data classification unit is used for determining classification indexes of the target point cloud data based on the attribute information, clustering the target point cloud data based on the classification indexes, and labeling each type of clustered target point cloud data, wherein the classification indexes comprise top point cloud data of an aviation aircraft, low point cloud data of the aviation aircraft and side point cloud data of the aviation aircraft;
the coordinate determination unit is used for constructing a three-dimensional coordinate system and sequentially putting each type of target point cloud data into the three-dimensional coordinate system based on the labeling result to obtain a target coordinate value of each point cloud data in the three-dimensional coordinate system;
the hierarchical determining unit is used for dividing the target point cloud data into N layers according to the target coordinate value of each point cloud data in the three-dimensional coordinate system based on the preset coordinate direction in the three-dimensional coordinate system, wherein the values of the target coordinate values corresponding to the target point cloud data in each layer in the preset coordinate direction are consistent;
the characteristic map determining unit is used for reading the target point cloud data corresponding to each layer, determining the characteristic surface corresponding to each layer and obtaining N characteristic surface sets corresponding to the layers;
the model construction unit is used for determining reference point cloud data at the boundary in each layer, constructing a three-dimensional grid based on the reference point cloud data, and simultaneously determining the corresponding relation between the appearance characteristics of the target aviation aircraft and the three-dimensional grid;
the model construction unit is further configured to optimize the three-dimensional grid based on the correspondence to obtain a grid frame corresponding to the target aircraft, and determine texture information in the feature surfaces corresponding to the N layers;
the model construction unit is further configured to fuse the texture information to the integral grid to obtain a three-dimensional entity model corresponding to the target aviation aircraft.
In this embodiment, the attribute information refers to position information of each point cloud data as a whole, and may be, for example, point cloud data of a side of an aircraft or point cloud data of a top of the aircraft.
In this embodiment, the classification index refers to a reference basis for classifying the target point cloud data, and may be, for example, classifying point cloud data of the same plane according to the structure of the body of the aviation aircraft.
In this embodiment, the labeling refers to labeling each type of point cloud data, so as to distinguish the position of each type of point cloud data.
In this embodiment, the target coordinate values refer to horizontal, vertical, and vertical coordinate values of the target point cloud data in the three-dimensional coordinate system.
In this embodiment, the preset coordinate direction is set in advance, and may be any one of a horizontal coordinate, a vertical coordinate, and a vertical coordinate.
In this embodiment, the layering refers to grouping points with the same coordinate value into one layer.
In this embodiment, the irregular surface refers to the curvature, length, width, and the like of the target aviation aircraft displayed on the surface of each layer of point cloud data.
In this embodiment, the reference point cloud data refers to points on the surface of the target aircraft.
In this embodiment, the grid framework refers to a framework consistent with the structure of the target aviation aircraft according to the target point cloud data, so that a three-dimensional solid model corresponding to the target aviation aircraft can be obtained conveniently.
In this embodiment, the texture information indicates that the surface of the target aircraft presents uneven grooves, and also includes color patterns and the like on the smooth surface of the target aircraft.
The beneficial effects of the above technical scheme are: by processing the point cloud data and realizing rapid modeling of the target aircraft according to the processing result, the accuracy of modeling the target aircraft is ensured, meanwhile, model reconstruction is carried out on the surface texture information of the target aircraft, and the accurate three-dimensional entity model provides convenience for maintenance operation simulation training of crew and guarantees the accuracy of the maintenance operation simulation training.
Example 5:
on the basis of the foregoing embodiment 4, the present embodiment provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, and the model building unit includes:
the proportion determining subunit is used for acquiring a modeling size conversion proportion between the three-dimensional entity model and the target aviation aircraft by the management terminal, and determining specific coordinate values of each target point in the three-dimensional entity model in a three-dimensional coordinate system when one-to-one modeling is performed;
the scaling subunit is used for converting the specific coordinate values of the target points in the three-dimensional coordinate system based on the modeling size conversion ratio to obtain conversion coordinate values;
and the model reconstruction subunit is used for scaling the three-dimensional solid model based on the converted coordinate value to obtain a target three-dimensional solid model.
In this embodiment, the modeling size conversion ratio refers to the size requirement of the management terminal on the model, and may be, for example, 1: 1 modeling or 1: 0.5 modeling, etc.
In this embodiment, converting the coordinate values means converting 1: and (1) converting the coordinate values under the condition of 1 to obtain the coordinate values.
The beneficial effects of the above technical scheme are: the size of the three-dimensional solid model is quickly adjusted by determining the size requirement of the management terminal on the three-dimensional solid model, and convenience and guarantee are provided for maintenance operation simulation training of crew members.
Example 6:
on the basis of the foregoing embodiment 1, the embodiment provides a simulation training system for maintenance operation of an aviation aircraft based on rapid modeling, and as shown in fig. 3, the training module includes:
the maintenance item determining unit is used for acquiring the regular maintenance item information from a preset database, acquiring the maintenance attribute corresponding to the regular maintenance item information, matching the import mode with the maintenance attribute, and acquiring the allowed display state of the spreadsheet into which the corresponding regular maintenance item information is to be imported;
when the import mode is matched with the display permission state, importing the corresponding regular maintenance project information into the corresponding electronic form for corresponding display according to the import mode;
when the import mode is not matched with the allowed display state, matching the import weight of the import mode from a mode weight mapping table, and judging the changeable state of the import mode;
if the changeable condition meets the changing condition, a new importing mode is exchanged, and the corresponding regular maintenance project information is imported into the spreadsheet for corresponding display;
if the changeable state does not meet the change condition, matching and changing the display condition corresponding to the display permission state according to the change condition, and importing the corresponding regular maintenance project information into the electronic form after matching and changing for corresponding display;
the maintenance item determining unit is used for receiving an item maintenance instruction sent by a management terminal and matching corresponding target maintenance item information from the maintenance item record table based on the item maintenance instruction, wherein the item maintenance instruction comprises the type information of an item to be maintained and a maintenance degree value of the item to be maintained;
and the maintenance unit is used for transmitting the target maintenance project information to a maintenance personnel terminal and reminding the maintenance personnel to carry out simulation training on the target maintenance project based on the three-dimensional entity model.
In this embodiment, the preset database is set in advance, and all item information for maintaining the target aircraft is stored in the preset database.
In this embodiment, maintaining the project record table refers to obtaining a form after sequencing and displaying all maintenance projects in a preset database through an electronic form.
In this embodiment, the target maintenance item information refers to an item that the current maintenance staff needs to perform maintenance, and may be one or multiple items.
In this embodiment, the periodic maintenance attributes are, for example, attributes for performing corresponding maintenance on the sides, top, bottom, systems, etc. of the aircraft.
In this embodiment, for example, the attribute of maintenance with the aircraft component itself is performed, at this time, for example, the matched import mode is serial import, and the import mode is matched with the allowed display state of the corresponding spreadsheet, for example, the allowed display state at this time is a display state in which each sub-grid in the spreadsheet is visible to the naked eye and sequentially displayed in sequence.
In this embodiment, the importing means further includes: parallel import and combined parallel and serial import.
In this embodiment, the presentation status, such as the display of each macroscopic sub-grid in the spreadsheet, is allowed to be displayed one by one, and the display of a part of the macroscopic sub-grids in the spreadsheet is allowed to be displayed one by one in sequence, so that the display of a part of the macroscopic sub-grids is visible to the naked eye, for better interpretation of parallel and serial.
In this embodiment, the state may be changed, for example, the parallel import may be modified from the serial import, which is a new import mode.
In this embodiment, the condition is changed, for example, only serial import is possible, and parallel import is not possible.
In this embodiment, conditions such as a piece of display per sub-grid visible to the naked eye, etc. are presented.
In this embodiment, the manner mapping weights include import weights and import manners, and are related to the maintenance attributes, and the import weights corresponding to different maintenance attributes are also different.
The beneficial effects of the above technical scheme are: through the matching of the importing mode and the display permission state, the compatibility between the importing mode and the display permission state can be guaranteed, the display condition matching corresponding to the importing mode is carried out, and finally the maintenance items are recorded and displayed in a form mode, so that the management terminal and the maintenance personnel can visually understand the current maintenance items, meanwhile, the determined target maintenance item information is sent to the maintenance personnel terminal, the maintenance personnel can conveniently know the current maintenance information as early as possible, and the efficiency of maintenance operation simulation training is improved.
Example 7:
on the basis of the foregoing embodiment 6, the present embodiment provides a maintenance operation simulation training system for an aviation aircraft based on rapid modeling, where the maintenance unit includes:
the simulation training recording subunit is used for acquiring the maintenance information of the target maintenance project and determining the time length for the maintenance personnel to perform the maintenance operation simulation training on the target maintenance project and the maintenance accuracy of the target maintenance project based on the maintenance information;
the simulation training recording subunit is used for creating a recording form based on the target maintenance item, the time length used for the simulation training of the maintenance operation and the maintenance accuracy of the target maintenance item, and recording the target maintenance item, the time length used for the simulation training of the maintenance operation and the maintenance accuracy of the target maintenance item based on the recording form;
the evaluation subunit is used for evaluating the maintenance degree of the maintenance personnel on the target maintenance project based on the recording result and judging whether the maintenance of the maintenance personnel on the target maintenance project is qualified or not based on the evaluation result;
if not, sending a model re-training instruction to the maintainers, and reminding the maintainers to perform simulation training again until the maintainers are judged to be qualified in maintaining the target maintenance project;
otherwise, judging that the maintenance of the target maintenance project by the maintenance personnel is qualified, and finishing the simulation training of the target maintenance project.
In this embodiment, the evaluation of the degree of maintenance of the target maintenance item by the maintenance staff based on the recorded result refers to a comprehensive evaluation according to different weights of the duration used by the maintenance staff and the maintenance accuracy rate by using an evaluation standard set in advance.
The beneficial effects of the above technical scheme are: the maintenance duration and the maintenance accuracy of the target maintenance project are recorded by the maintainer, and the maintenance operation of the maintainer is evaluated according to the recording result, so that the maintainer is ensured to accurately and efficiently complete the simulation training of the maintenance operation, and the simulation training is guaranteed.
Example 8:
on the basis of the foregoing embodiment 1, this embodiment provides an aviation aircraft maintenance operation simulation training system based on rapid modeling, and the training module further includes:
the training data acquisition unit is used for acquiring the size information of the three-dimensional entity model, calculating the accuracy rate of modeling the target aviation aircraft based on the size information, and calculating the standard reaching rate of maintenance personnel for maintaining the target maintenance project based on the accuracy rate, and the method specifically comprises the following steps:
the first calculation unit is used for calculating the accuracy of modeling the target aviation aircraft according to the following formula:
wherein alpha represents the accuracy rate of modeling the target aviation classification, and the value range is (0, 1); beta represents a conversion coefficient between the actual size of the target aviation aircraft and the actual size of the three-dimensional solid model; l-representation three-dimensional solid model actual rulerCun value; k represents the actual size value of the target aircraft; i represents the current panel number of the three-dimensional solid model and the value range is [1, n ]](ii) a n represents the total number of panels of the three-dimensional solid model; siAn area value of an ith panel representing the three-dimensional solid model; τ represents a total panel area value for the target aircraft;
represents an allowable error value and has a value range of (-0.05, 0.05);
the second calculating unit is used for calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project according to the following formula:
wherein mu represents the standard reaching rate of maintenance personnel for maintaining the target maintenance project, and the value range is (0, 1); omega represents an error coefficient, and the value range is (0.05, 0.1); j represents the jth flow in the target maintenance project; m represents the total number of the processes in the target maintenance project; sjIndicates the operation steps included in the j-th flow; t is tjA value representing the length of time for the maintenance personnel to complete the jth flow; v represents a standard average speed value corresponding to maintenance reaching time of all target maintenance items by maintenance personnel; t represents a standard total time length value corresponding to the maintenance of all target maintenance items by a maintainer;
the comparison unit is used for comparing the standard reaching rate with a preset standard reaching rate;
if the standard reaching rate is greater than or equal to the preset standard reaching rate, judging that the maintenance operation simulation training of the maintainers reaches the standard;
otherwise, judging that the maintenance operation simulation training of the maintainers does not reach the standard, searching for a target reason, and carrying out the simulation training on the maintainers based on the target reason;
and calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project again based on the training result until the standard reaching rate is greater than or equal to the preset standard reaching rate, and completing the simulation training of the maintenance personnel.
In this embodiment, the conversion coefficient refers to a size ratio between the size of the target aircraft and the three-dimensional solid model, and may be, for example, 1: 1 or 1: 2, etc.
In this embodiment, the preset achievement rate is set in advance, and is used for measuring whether the achievement rate of the maintenance of the target maintenance project by the maintainer meets the requirement.
The beneficial effects of the above technical scheme are: by calculating the accuracy of modeling the target aviation airplane and calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project based on the accuracy, the maintenance personnel are ensured to strictly train the target maintenance project, and the accuracy of simulation training of the maintenance personnel is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An aviation aircraft maintenance operation simulation training system based on rapid modeling is characterized by comprising:
the laser scanning module is used for determining the appearance characteristics of the target aviation aircraft and scanning the appearance characteristics based on a preset laser scanner to obtain target point cloud data;
the data processing module is used for processing the target point cloud data and generating a three-dimensional entity model based on a processing result;
and the training module is used for determining a target maintenance project and carrying out aviation aircraft maintenance operation simulation training on the target maintenance project based on the three-dimensional solid model.
2. The aviation aircraft maintenance operation simulation training system based on rapid modeling according to claim 1, wherein the laser scanning module comprises:
the shape contour determining method is used for respectively carrying out light irradiation on the target aviation aircraft from a target angle based on a preset light source and determining the geometric projection of the target aviation aircraft on a preset background plate based on an irradiation result;
the shape contour determining unit is further configured to extract a geometric shape of the target aircraft based on a geometric projection result, and fit a target contour line of the target aircraft based on the geometric shape, wherein the target contour line includes a top, a bottom, a side, a front, and a rear of a fuselage;
and the appearance characteristic determining unit is used for integrating the target contour line and determining the appearance characteristic of the target aviation aircraft based on the integration result.
3. The aviation aircraft maintenance operation simulation training system based on rapid modeling according to claim 1, wherein the laser scanning module further comprises:
the laser scanning unit is used for acquiring a target acquisition visual angle and carrying out laser scanning on the target aviation aircraft from the target acquisition visual angle based on the preset laser scanner to obtain initial point cloud data, wherein the target acquisition visual angle is not unique;
the point cloud data registration unit is used for determining the corresponding relation between the initial point cloud data and the appearance features of the target aviation aircraft and extracting the target feature points of the appearance features of the target aviation aircraft;
and the point cloud data registration unit is also used for registering the initial point cloud data through the target feature points and based on the corresponding relation to obtain target point cloud data corresponding to the target aviation aircraft.
4. The aviation aircraft maintenance operation simulation training system based on rapid modeling according to claim 1, wherein the data processing module comprises:
the point cloud data acquisition unit is used for acquiring the obtained target point cloud data and extracting attribute information of the target point cloud data;
the point cloud data classification unit is used for determining classification indexes of the target point cloud data based on the attribute information, clustering the target point cloud data based on the classification indexes, and labeling each type of clustered target point cloud data, wherein the classification indexes comprise top point cloud data of an aviation aircraft, low point cloud data of the aviation aircraft and side point cloud data of the aviation aircraft;
the coordinate determination unit is used for constructing a three-dimensional coordinate system and sequentially putting each type of target point cloud data into the three-dimensional coordinate system based on the labeling result to obtain a target coordinate value of each point cloud data in the three-dimensional coordinate system;
the hierarchical determining unit is used for dividing the target point cloud data into N layers according to the target coordinate value of each point cloud data in the three-dimensional coordinate system based on the preset coordinate direction in the three-dimensional coordinate system, wherein the values of the target coordinate values corresponding to the target point cloud data in each layer in the preset coordinate direction are consistent;
the characteristic map determining unit is used for reading the target point cloud data corresponding to each layer, determining the characteristic surface corresponding to each layer and obtaining N characteristic surface sets corresponding to the layers;
the model construction unit is used for determining reference point cloud data at the boundary in each layer, constructing a three-dimensional grid based on the reference point cloud data, and simultaneously determining the corresponding relation between the appearance characteristics of the target aviation aircraft and the three-dimensional grid;
the model construction unit is further configured to optimize the three-dimensional grid based on the correspondence to obtain a grid frame corresponding to the target aircraft, and determine texture information in the feature surfaces corresponding to the N layers;
the model construction unit is further configured to fuse the texture information to the integral grid to obtain a three-dimensional entity model corresponding to the target aviation aircraft.
5. The aviation aircraft maintenance operation simulation training system based on rapid modeling according to claim 4, wherein the model building unit comprises:
the proportion determining subunit is used for acquiring a modeling size conversion proportion between the three-dimensional entity model and the target aviation aircraft by the management terminal, and determining specific coordinate values of each target point in the three-dimensional entity model in a three-dimensional coordinate system when one-to-one modeling is performed;
the scaling subunit is used for converting the specific coordinate values of the target points in the three-dimensional coordinate system based on the modeling size conversion ratio to obtain conversion coordinate values;
and the model reconstruction subunit is used for scaling the three-dimensional solid model based on the converted coordinate value to obtain a target three-dimensional solid model.
6. The aviation aircraft maintenance operation simulation training system based on rapid modeling according to claim 1, wherein the training module comprises:
the maintenance item determining unit is used for acquiring the regular maintenance item information from a preset database, acquiring the maintenance attribute corresponding to the regular maintenance item information, matching the import mode with the maintenance attribute, and acquiring the allowed display state of the spreadsheet into which the corresponding regular maintenance item information is to be imported;
when the import mode is matched with the display permission state, importing the corresponding regular maintenance project information into the corresponding electronic form for corresponding display according to the import mode;
when the import mode is not matched with the allowed display state, matching the import weight of the import mode from a mode weight mapping table, and judging the changeable state of the import mode;
if the changeable condition meets the changing condition, a new importing mode is exchanged, and the corresponding regular maintenance project information is imported into the spreadsheet for corresponding display;
if the changeable state does not meet the change condition, matching and changing the display condition corresponding to the display permission state according to the change condition, and importing the corresponding regular maintenance project information into the electronic form after matching and changing for corresponding display;
the maintenance item determining unit is used for receiving an item maintenance instruction sent by a management terminal and matching corresponding target maintenance item information from the maintenance item record table based on the item maintenance instruction, wherein the item maintenance instruction comprises the type information of an item to be maintained and a maintenance degree value of the item to be maintained;
and the maintenance unit is used for transmitting the target maintenance project information to a maintenance personnel terminal and reminding the maintenance personnel to carry out simulation training on the target maintenance project based on the three-dimensional entity model.
7. The rapid modeling based aviation aircraft maintenance operation simulation training system according to claim 6, wherein the maintenance unit comprises:
the simulation training recording unit is used for acquiring the maintenance information of the target maintenance project and determining the time length for the maintenance personnel to carry out the maintenance operation simulation training on the target maintenance project and the maintenance accuracy of the target maintenance project based on the maintenance information;
the simulation training recording unit is used for creating a recording form based on the target maintenance item, the time length used by the simulation training of the maintenance operation and the maintenance accuracy of the target maintenance item, and recording the target maintenance item, the time length used by the simulation training of the maintenance operation and the maintenance accuracy of the target maintenance item based on the recording form;
the evaluation unit is used for evaluating the maintenance degree of the maintainers on the target maintenance project based on the recording result and judging whether the maintainers are qualified in maintaining the target maintenance project based on the evaluation result;
if not, sending a model re-training instruction to the maintainers, and reminding the maintainers to perform simulation training again until the maintainers are judged to be qualified in maintaining the target maintenance project;
otherwise, judging that the maintenance of the target maintenance project by the maintenance personnel is qualified, and finishing the simulation training of the target maintenance project.
8. The aviation aircraft maintenance operation simulation training system based on rapid modeling according to claim 1, wherein the training module further comprises:
the training data acquisition unit is used for acquiring the size information of the three-dimensional entity model, calculating the accuracy rate of modeling the target aviation aircraft based on the size information, and calculating the standard reaching rate of maintenance personnel for maintaining the target maintenance project based on the accuracy rate, and the method specifically comprises the following steps:
the first calculation unit is used for calculating the accuracy of modeling the target aviation aircraft according to the following formula:
wherein alpha represents the accuracy rate of modeling the target aviation classification, and the value range is (0, 1); beta represents a conversion coefficient between the actual size of the target aviation aircraft and the actual size of the three-dimensional solid model; l represents the actual size value of the three-dimensional solid model; k represents the actual size value of the target aircraft; i represents the current panel number of the three-dimensional solid model and the value range is [1, n ]](ii) a n represents the total number of panels of the three-dimensional solid model; siAn area value of an ith panel representing the three-dimensional solid model; τ represents a total panel area value for the target aircraft;
represents an allowable error value and has a value range of (-0.05, 0.05);
the second calculating unit is used for calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project according to the following formula:
wherein mu represents the standard reaching rate of maintenance personnel for maintaining the target maintenance project, and the value range is (0, 1); omega represents an error coefficient, and the value range is (0.05, 0.1); j represents the jth flow in the target maintenance project; m represents the total number of the processes in the target maintenance project; sjIndicates the operation steps included in the j-th flow; t is tjA value representing the length of time for the maintenance personnel to complete the jth flow; v represents a standard average speed value corresponding to maintenance reaching time of all target maintenance items by maintenance personnel; t represents a standard total time length value corresponding to the maintenance of all target maintenance items by a maintainer;
the comparison unit is used for comparing the standard reaching rate with a preset standard reaching rate;
if the standard reaching rate is greater than or equal to the preset standard reaching rate, judging that the maintenance operation simulation training of the maintainers reaches the standard;
otherwise, judging that the maintenance operation simulation training of the maintainers does not reach the standard, searching for a target reason, and carrying out the simulation training on the maintainers based on the target reason;
and calculating the standard reaching rate of the maintenance personnel for maintaining the target maintenance project again based on the training result until the standard reaching rate is greater than or equal to the preset standard reaching rate, and completing the simulation training of the maintenance personnel.
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