Fault Detection and Identification in the Doubled Attitude and Heading Reference System (AHRS)
Grzegorz Kopecki1, Bogusław Dołęga1, Paweł Rzucidło1
1Department of Avionics and Control, Faculty of Mechanical Engineering and Aeronautics, Rzeszów University of Technology, al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland.
This study introduces a diagnostic system for redundant Attitude and Heading Reference Systems (AHRS) to detect and identify faults. This enhances flight control system efficiency, especially for cost-effective UAV applications.
Area of Science:
- Aerospace Engineering
- Control Systems
- Fault Detection
Background:
- Redundant Attitude and Heading Reference Systems (AHRS) are crucial for flight control.
- Ensuring the reliability of AHRS is vital for system safety and efficiency.
- Existing diagnostic methods may not be optimal for low-cost applications.
Purpose of the Study:
- To develop and present a diagnostic system for dual redundant AHRS units.
- To enable effective fault detection and identification in AHRS.
- To support the design of more efficient and reliable flight control systems.
Main Methods:
- Introduction to the fundamental principles of AHRS operation.
- Detailed description of the proposed diagnostic system architecture.
- Demonstration of the diagnostic system's capabilities and properties.
Main Results:
- Simulation results validate the system's effectiveness in fault detection.
- The system successfully identifies faults within the redundant AHRS units.
- The diagnostic system proves its utility in practical scenarios.
Conclusions:
- The proposed diagnostic system is effective for fault detection and identification in redundant AHRS.
- This solution contributes to enhanced reliability in aeronautical control systems.
- The system is particularly suitable for cost-sensitive applications like UAVs.
Related Concept Videos
Errors in Global Positioning System
Azimuths and Bearings
Relative Motion Analysis using Rotating Axes-Problem Solving
Here, in order to determine the magnitude of velocity and acceleration for point...
Common Leveling Mistakes and Errors
Relative Motion Analysis using Rotating Axes - Acceleration
Time differentiation is...
Relative Motion Analysis using Rotating Axes
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...


