CN-121165938-B - Virtual reality interaction simulation system based on high-speed railway line maintenance

CN121165938BCN 121165938 BCN121165938 BCN 121165938BCN-121165938-B

Abstract

The invention discloses a virtual reality interaction simulation system based on high-speed railway line maintenance, and belongs to the technical field of high-speed railway line maintenance simulation. The system comprises a virtual scene construction unit, an operation action capturing unit, a rule verification unit, a difference calculation unit, an abnormality positioning unit and a comprehensive risk prompting unit. The virtual scene construction unit generates a standardized virtual scene model by using high-speed railway line maintenance manual data and real-time equipment state information, the operation motion capturing unit captures three-dimensional space coordinate sequence output motion track data of a user, the rule verification unit compares the motion track data with a preset maintenance rule base output operation compliance judgment result, the difference calculation unit calculates operation deviation measurement, the abnormality positioning unit positions abnormal operation physical positions, and the comprehensive risk prompting unit generates maintenance risk grade identification. The system provides a simulation environment for maintenance personnel, and monitors and feeds back operation in real time.

Inventors

PENG FEI
Shi Mingxun
YAN LAN

Assignees

呼和浩特职业学院

Dates

Publication Date: 20260505
Application Date: 20250922

Claims (8)

1. Virtual reality interaction simulation system based on high-speed railway line maintenance, characterized by comprising: The virtual scene construction unit is used for extracting maintenance task elements and carrying out structural mapping on the basis of the high-speed railway line maintenance manual data and the real-time equipment state information to generate a standardized virtual scene model; An operation capturing unit for capturing a three-dimensional space coordinate sequence based on a user motion sensor and outputting motion track data; the rule verification unit is used for executing real-time comparison of the action track data and rule constraint based on the standardized virtual scene model and a preset maintenance rule base and outputting an operation compliance judgment result; a difference calculation unit that calculates an operation deviation metric based on the operation compliance determination result and a standard operation sequence reference value; An anomaly locating unit for locating an anomaly operation physical location based on the operation deviation measure and the virtual scene space topology; The comprehensive risk prompting unit is used for generating a maintenance risk grade identifier based on the operation deviation measurement and the abnormal operation physical position; the operation compliance judging result obtaining step comprises the following steps: invoking a line maintenance task type field in the standardized virtual scene model, and matching constraint condition entries in a rule base; calculating rule applicable intensity values based on the number of matching entries and the logic level; Comparing the action track data with the constraint threshold item by item according to the rule applicable intensity value to generate an operation compliance judging result; The positioning step of the abnormal operation physical position comprises the following steps: Mapping the operation deviation measure to a virtual scene space topology node; Based on the space node connection relation, performing exception propagation simulation; Counting the occurrence frequency of the abnormality, calculating the residence probability and generating an abnormality probability distribution map; Based on the anomaly probability distribution map, an aggregate region is identified and a physical location boundary is delineated.
2. The high-speed railway line maintenance-based virtual reality interaction simulation system according to claim 1, wherein the obtaining step of the standardized virtual scene model is as follows: Based on the high-speed railway line maintenance manual data, scanning and analyzing a maintenance step description text, and identifying and extracting element types to generate an original set of maintenance elements; Performing field mapping verification and format conversion based on the maintenance element original set, and reconstructing the field mapping verification and format conversion into a standardized scene field set; based on the standardized scene field set, establishing inter-field association binding, generating an index and outputting a standardized virtual scene model.
3. The high-speed railway line maintenance-based virtual reality interaction simulation system according to claim 1, wherein the operation deviation metric obtaining step is as follows: extracting deviation attributes in the operation compliance judging result, and executing time window sliding analysis by combining a standard operation sequence reference value; the unsynchronized sequences of operations are aligned, an accumulated deviation amount is calculated, and an operation deviation metric is quantized based on the deviation amount distribution.
4. The high-speed railway line maintenance-based virtual reality interaction simulation system of claim 1, further comprising: The feedback generation unit is used for generating an interactive correction instruction based on the abnormal operation physical position and the operation compliance judgment result, and the interactive correction instruction is generated by the following steps: integrating the abnormal operation physical position coordinates with operation compliance judgment result details, and generating a space labeling instruction based on the position coordinates; and generating a text description instruction based on the detail of the compliance judgment result, fusing the space annotation instruction and the text description instruction, and outputting an interactive correction instruction.
5. The high-speed railway line maintenance-based virtual reality interaction simulation system according to claim 4, wherein the feedback generation unit further comprises analyzing an instruction type of the interactive correction instruction, converting instruction space coordinates based on virtual scene space topology coordinates, and generating a visual feedback signal comprising the space coordinates and the instruction type.
6. The high-speed railway line maintenance-based virtual reality interaction simulation system of claim 1, further comprising: the association map construction unit is used for identifying the shared maintenance entity and constructing a step association network based on the sequence of the action track data, wherein the construction steps of the step association network are as follows: Extracting shared maintenance entity identifiers in a plurality of action track data sequences; Performing entity classification and de-duplication processing to generate a shared entity set; Calculating an association strength value based on the shared entity set distribution; and constructing a graph structure by taking the maintenance entity as a node and the association strength value as an edge weight, and generating a step association network.
7. The high-speed railway line maintenance-based virtual reality interaction simulation system of claim 1, further comprising a data storage unit that performs: The method comprises the steps of collecting motion track data output by an operation motion capturing unit and an operation compliance judging result output by a rule verifying unit, extracting space position characteristics in the motion track data and abnormal mark characteristics in the operation compliance judging result, establishing a layered storage structure based on characteristic types and generating a time stamp index.
8. The high-speed railway line maintenance virtual reality-based interactive simulation system according to claim 1, wherein the step of generating the maintenance risk level identifier is: Collecting abnormal probability distribution data output by the abnormal positioning unit and operation deviation measurement data output by the difference calculation unit; calculating a comprehensive risk score based on the anomaly probability distribution data and the operational deviation metric data; and dividing the risk level interval according to the comprehensive risk score, and generating a maintenance risk level identifier.

Description

Virtual reality interaction simulation system based on high-speed railway line maintenance Technical Field The invention relates to the technical field of high-speed railway line maintenance simulation, in particular to a virtual reality interaction simulation system based on high-speed railway line maintenance. Background At the moment of rapid development of the high-speed railway industry, the complexity and precision of high-speed railway line equipment place extremely high demands on the skill level of maintenance personnel. The traditional high-speed railway maintenance training mode has a plurality of limitations, and mainly depends on practical equipment operation exercises, paper manual learning and experience teaching modes of a master belt apprentice. Practical equipment operation practice faces the problem of limited equipment resources, high-speed railway equipment is high in cost and limited in quantity, large-scale training requirements are difficult to meet, and in the practical operation process, once misoperation possibly causes equipment damage, even safety risks are caused. Meanwhile, the types of the high-speed railway lines are various, the structures and maintenance requirements of different lines are different, and maintenance training contents of all the lines cannot be covered only by a small amount of actual equipment. The paper handbook is relatively abstract in learning, and maintenance personnel are difficult to convert two-dimensional characters and diagrams into three-dimensional actual operation scenes, so that the maintenance flow and details are not well understood, and deviation is easy to occur in actual operation. The patterns of the master belt apprentice are limited by time and effort of the master, training efficiency is low, and operation habits and experiences of different masters are different, which may cause non-uniformity of maintenance standards. The real-time monitoring and feedback to the operation process are lacking in the traditional training, so that a maintainer cannot timely know whether the operation of the maintainer is in compliance or not, and also cannot accurately find out errors in the operation, so that the training effect is affected to a certain extent, the skill of the maintainer is slowly improved, and the high-standard requirement of high-speed railway line maintenance is difficult to meet. Disclosure of Invention The invention aims to provide a virtual reality interaction simulation system based on high-speed railway maintenance so as to solve the problems in the background technology. In order to achieve the above object, the present invention provides a virtual reality interaction simulation system based on high-speed railway line maintenance, the system comprising: The virtual scene construction unit is used for extracting maintenance task elements and carrying out structural mapping on the basis of the high-speed railway line maintenance manual data and the real-time equipment state information to generate a standardized virtual scene model; An operation capturing unit for capturing a three-dimensional space coordinate sequence based on a user motion sensor and outputting motion track data; the rule verification unit is used for executing real-time comparison of the action track data and rule constraint based on the standardized virtual scene model and a preset maintenance rule base and outputting an operation compliance judgment result; a difference calculation unit that calculates an operation deviation metric based on the operation compliance determination result and a standard operation sequence reference value; An anomaly locating unit for locating an anomaly operation physical location based on the operation deviation measure and the virtual scene space topology; and the comprehensive risk prompting unit is used for generating a maintenance risk grade identifier based on the operation deviation measurement and the abnormal operation physical position. Preferably, the step of obtaining the standardized virtual scene model includes: based on the high-speed railway line maintenance manual data, scanning and analyzing a line maintenance step description text, and carrying out element category identification and extraction to generate an original set of maintenance elements; performing field mapping verification and format conversion based on the original set of line maintenance elements, and reconstructing the original set of line maintenance elements into a standardized scene field set; based on the standardized scene field set, establishing inter-field association binding, generating an index and outputting a standardized virtual scene model. Preferably, the step of obtaining the operation compliance determination result includes: invoking a line maintenance task type field in the standardized virtual scene model, and matching constraint condition entries in a rule base; calculating rule applicable intensity values based on the nu