一种双冗余伺服控制器及其主备自主切换方法
By using DSP and FPGA collaborative detection, combined with hardware and serial port switching methods, a highly reliable autonomous switching of dual redundant servo controllers was achieved, solving the problem of incomplete fault isolation in existing technologies and meeting the high reliability requirements of long-endurance UAVs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN MICROELECTRONICS TECH INST
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
The existing dual-redundant servo controllers lack processor fault detection coverage and fault isolation, resulting in fault propagation and poor reliability during machine switching, making it difficult to meet the high reliability requirements of long-endurance UAVs.
Fault detection is performed using DSP and FPGA in collaboration. Combined with heterogeneous redundancy methods such as hardware switching, serial port switching, and heartbeat switching, the primary and backup machines are identified by hardware ID. A one-way switching mode is designed to ensure automatic switching to the backup machine when the primary machine fails.
It improved the fault detection rate by 5%, reduced the possibility of the main power drive module not being turned off by 20%, and improved the reliability of the main and backup automatic switching by 20%.
Smart Images
Figure CN120802789B_ABST