A method and system for self-repairing of unmanned aerial vehicle blades

By combining real-time monitoring and time-difference positioning with microcapsule repair agents and piezoelectric ceramic technology, autonomous repair of UAV propeller blades is achieved, solving the problem of immediate handling of damage during flight and improving the maintenance efficiency and safety of UAVs.

CN122276138APending Publication Date: 2026-06-26SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2026-03-20
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing drone propeller repair technology cannot achieve real-time autonomous repair during flight, resulting in mission interruption and high economic costs, and dynamic threshold judgment is prone to false triggering.

Method used

By using real-time monitoring of the blade structure, combined with microcapsule repair agents and piezoelectric drive technology, the damage location is determined by time-difference positioning method and self-repair is achieved using piezoelectric ceramics. The threshold is dynamically adjusted to avoid false triggering.

Benefits of technology

It enables real-time damage identification and repair of drones during flight, improving maintenance efficiency, flight safety and economy, and reducing operation and maintenance costs and mission interruption risks.

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Abstract

This invention belongs to the technical field of propeller repair, proposing a method and system for self-repairing UAV propellers. The method includes: real-time monitoring of the propeller structure; when the detected local strain of the propeller exceeds a dynamic threshold, determining the location of the damage using a time-difference positioning method based on multiple detection locations within the propeller; determining the repair agent closest to the damage location; and achieving self-repair of the propeller using piezoelectric ceramic technology based on the repair agent. This invention, by real-time monitoring of the propeller state combined with microencapsulated repair agents and piezoelectric actuation technology, enables damage identification and rapid repair during flight, significantly improving the maintenance efficiency, flight safety, and economy of UAVs.
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