AR Smart Glasses for Subway Maintenance Digital Guidance
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Solution Overview
Problem
The existing methods for maintaining subway vehicles are inefficient due to the complexity of subsystems, the need for frequent updates in workflows, and the inconvenience of carrying paper manuals. Current recording methods are prone to errors and omissions, and lack real-time supervision, affecting the accuracy and effectiveness of repair records.
Innovation Solution
A system and method utilizing augmented reality (AR) smart glasses and a smart terminal to convert paper repair process files into digital process guidance files. This system includes a back-end system that integrates with existing maintenance dispatching management systems, allowing for real-time data inquiry, digital work order submission, and automatic generation of repair reports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If repair personnel carry paper maintenance manuals and technical specifications to inquire about repair steps, then they can access repair information, but it causes inconvenience due to thick files being difficult to carry and inquire
Solution Approach 1:
The patent replaces physical paper manuals with digital versions stored in a maintenance management system. Repair personnel can access copies of maintenance manuals, technical specifications, and other repair information through computers or mobile terminals, eliminating the need to carry thick physical files while ensuring information availability.
Solution Approach 2:
The patent transitions repair information from physical space (paper manuals that need to be carried) to digital space (electronic files accessible via network). This dimensional change allows repair personnel to access the same information through electronic devices without the physical burden of carrying thick manuals.
2Loss of information
If repair personnel make records with a pen in paper maintenance orders and transcribe them later, then records can be made, but it causes complex operation and easy omission affecting accuracy
Solution Approach 1:
The system enables repair personnel to directly input and save repair records into the maintenance management system during the repair process itself. The system automatically manages the recording workflow, eliminating the need for separate transcription steps and reducing the risk of omissions through real-time digital capture.
Solution Approach 2:
The patent replaces the mechanical process of handwritten recording and manual transcription with an electronic system. Repair personnel use computers or mobile terminals to input records directly into the maintenance management system, which automatically stores and manages the data, eliminating the errors and complexity associated with manual transcription.
3Loss of information
If repair personnel use APP software on mobile phones to check in and handwrite records, then digital records can be created, but it still has problems of complex operation and inability to supervise recording results
Solution Approach 1:
The maintenance management system serves multiple functions within a unified platform: it handles work order management, repair process guidance, real-time record input, data storage, and supervision. This multi-functional system consolidates what would otherwise require multiple separate applications into one comprehensive solution, reducing operational complexity.
Solution Approach 2:
The system provides real-time feedback and supervision of recording results. The maintenance management system automatically validates inputs, ensures data completeness, and allows supervisors to review recorded information in real-time, enabling immediate correction of errors and ensuring recording accuracy without complex manual supervision processes.
4Loss of information
If technical data are stored in various formats including paper materials, then data can be preserved, but it causes efficiency problems due to manual searching and lack of correlation between data
Solution Approach 1:
The patent transforms technical data from physical paper format to digital format, fundamentally changing the accessibility parameter. Digital storage enables instant search, filtering, and retrieval operations that are impossible with paper documents, dramatically reducing search time while preserving all technical data through electronic archiving.
Solution Approach 2:
The system performs preliminary organization and indexing of technical data during the digitization process. Maintenance manuals, device drawings, device parameters, and repair videos are pre-categorized and tagged with relevant metadata, enabling rapid retrieval through keyword search without requiring manual browsing or multiple search attempts.
5Loss of information
If documents and video data are presented in a holistic way, then complete information is provided, but it requires searching or traversing twice to find desired information points
Solution Approach 1:
The patent segments large documents and video data into smaller, manageable sections with distinct headings and keywords. Maintenance manuals are divided into chapters and sections, device drawings are organized by system or component, and videos are segmented by repair step or function. This segmentation allows repair personnel to quickly locate specific information points without traversing entire documents.
Solution Approach 2:
The system introduces an intermediary search and navigation layer between the user and the complete information set. Through keyword search, hyperlinked tables of contents, and contextual navigation, the system mediates access to segmented information, allowing repair personnel to find specific points of interest rapidly while the system maintains the complete holistic information structure in the background.
Data Source
AI summary
Embodiments of this specification provide a system and method for assisting intelligent maintenance for a subway vehicle, a device and a medium. The system includes: a pair of AR smart glasses, configured to scan, identify and display a device under the control of a smart terminal, and cooperatively display a corresponding digital process guidance file; a smart terminal, configured to convert a paper repair process file into a digital process guidance file by means of a built-in process editor, store the digital process guidance file in a back-end system, download the digital process guidance file in the event of repair, inquire device information and maintenance information from the back-end system according to scanning information of the device, generate and submit a digital work order to a maintenance scheduling management system through the back-end system for maintenance task dispatching in response to detecting a fault, generate and submit a repair report to the back-end system, and provide a digital note assistant function; and a back-end system, configured to provide a subway vehicle maintenance database, and docked and integrated with the existing maintenance dispatching management system through an interface.