Laser Processing Control via Redundant Data Streaming Checks
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Solution Overview
Problem
Laser welding processes, such as those for battery and fuel cells, face challenges in ensuring operational safety due to the complexity of data processing and monitoring, where errors in laser power and spatial positioning can compromise the integrity and plausibility of the welding process.
Innovation Solution
A control method for laser processing machines that involves creating redundant data for the laser source and process optical unit, transferring this data via data streaming to a control device for comparison, which enables real-time monitoring and ensures operational safety by identifying errors and triggering a safety shutdown if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant data creation and comparison is implemented for safety monitoring, then operational safety is improved, but device complexity increases
Solution Approach 1:
The patent creates redundant copies of critical data (laser power, spatial position) from the laser source and process optical unit. These redundant data copies are transferred via data streaming to the control device for comparison with original data, enabling error detection without fundamentally changing the laser processing system's core functionality.
Solution Approach 2:
The control device continuously compares redundant data with original data in real-time through data streaming. When discrepancies are detected, the system provides feedback by triggering a safety shutdown. This closed-loop feedback mechanism ensures operational safety while maintaining a relatively simple system architecture.
2Speed
If real-time data streaming is used for transferring redundant data, then monitoring speed is improved, but data transfer requirements and system complexity increase
Solution Approach 1:
Instead of complex real-time analysis systems, the patent creates simplified redundant data copies that are streamed to the control device. The comparison process focuses on critical parameters (laser power, spatial position) rather than analyzing all possible data variations, reducing the complexity of the data streaming infrastructure while maintaining high monitoring speed.
3Measurement precision
If comprehensive data monitoring is implemented, then error detection capability is improved, but processing time and computational load increase
Solution Approach 1:
The patent applies monitoring with high precision to specific critical parameters (laser power, spatial position of process optical unit) rather than uniformly monitoring all system parameters. This localized approach to data monitoring ensures error detection capability is improved for safety-critical variables while minimizing overall processing time and computational load.
Data Source
AI summary
A method for controlling a laser processing machine includes providing the laser processing machine. The laser processing machine includes a laser source, a process optical unit, and a control device. The method further includes creating redundant data of the laser source and of the process optical unit, transferring the redundant data of the laser source and of the process optical unit to the control device by data streaming, and comparing the redundant data of the laser source and of the process optical unit.