电光与控制, 2018, 25(5): 115, 网络出版: 2018-05-01

无人机分布式飞行控制计算机故障诊断研究

Fault Diagnosis of UAV's Distributed Flight Control Computers
作者单位

南京航空航天大学自动化学院,南京 211106

摘要
以分布式飞行控制计算机为对象, 设计相应的故障诊断方法。提出了一种硬件余度和模型解析余度相结合的方法, 对计算机外部传感器、外部执行机构以及计算机内部功能模块进行故障诊断。通过设计诊断体系结构, 能够有效进行外部传感器、外部执行机构和飞行控制计算机内部数字控制器的故障检测和隔离, 解决了传统单一故障观测器无法诊断计算机内部故障的不足, 提高了飞行控制系统的故障诊断覆盖率和可靠性。
Abstract
A fault diagnosis method is designed for the distributed flight control computer of UAVs. A method combining hardware redundancy with the model's analytical redundancy is proposed for the fault diagnosis of the computer's external sensors, external actuators and internal functional modules. By designing the diagnosis architecture, the fault detection and isolation for the computer's external sensors, external actuators and the internal digital controller of the flight control computer can be effectively realized. It solves the problem that the traditional single fault observer cannot diagnose the computer's internal faults, and improves the coverage rate of fault diagnosis and the reliability of the flight control system.
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