Image Superposition Guidance for Low-Bandwidth Multi-User Maintenance
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Solution Overview
Problem
In offshore wind farms, the limited space and network capacity of boats restrict the number of technicians that can be transported for maintenance, and remote guidance is inadequate due to inadequate network capacity for simultaneous connections with multiple devices.
Innovation Solution
A method and system using image superposition, where a portable electronic device captures a reference image and calculates location coordinates based on a point cloud map, receiving virtual objects and 2D displaying coordinates from a back-end device to superpose guidance on the image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple technicians are transported to offshore wind farms using boats, then more maintenance personnel are available, but the limited boat capacity and inner space restrict the number of people that can be fitted
Solution Approach 1:
The system creates virtual copies of technicians through portable electronic devices that display superposed guidance information. Multiple users can simultaneously access identical or different guidance content without requiring physical presence of additional experienced technicians, effectively multiplying the capacity for maintenance personnel while consuming minimal additional physical space.
2Ease of operation
If remote teaching is implemented for offshore wind farms, then inexperienced technicians can be guided, but the inadequate network capacity in pelagic zones prevents simultaneous connections with multiple electronic devices
Solution Approach 1:
Guidance information is pre-loaded into portable electronic devices before technicians depart for offshore locations. The point cloud map and guidance data are stored locally, eliminating the need for real-time network connections during maintenance operations. This allows multiple devices to function independently without competing for limited network bandwidth in pelagic zones.
3Reliability
If experienced technicians are preferred for offshore maintenance operations, then maintenance quality is improved, but inexperienced technicians need guidance which requires additional network resources
Solution Approach 1:
The system transfers knowledge from experienced to inexperienced technicians through portable electronic devices that display superposed guidance information. This creates a virtual knowledge replication mechanism where guidance information can be simultaneously accessed by multiple users without requiring the physical presence of experienced technicians or consuming additional network resources beyond the initial data transfer.
Data Source
AI summary
A method for providing guidance at an indoor site is implemented using a portable electronic device and a back-end electronic device outside of the indoor site, and includes: obtaining, by the portable electronic device, a reference image of the indoor site, and calculating a set of location coordinates that represents a position of the portable electronic device at the indoor site; transmitting the set of location coordinates to the back-end electronic device; the back-end electronic device generating a virtual object and a set of two-dimensional (2D) displaying coordinates that corresponds to the virtual object, and transmitting the virtual object and the 2D displaying coordinates to the portable electronic device; and displaying, by the portable electronic device, the reference image and the virtual object which is superposed on the reference image on a location of the reference image.