PowerPC and x86 based hybrid tri-redundancy UAV flying control computer and core design method

Abstract

The invention provides a PowerPC and x86 based hybrid tri-redundancy UAV flying control computer and a core design method. The PowerPC and x86 based hybrid tri-redundancy UAV flying control computer is that the hardware comprises three flying control computer core units and a redundancy managing plate, wherein the three flying control computer core units adopt 32-bit processors MPC565 and 80486 as the control cores; the redundancy managing plate comprises an inter-module communication circuit, a high-speed analog switch circuit and a secondary power supply circuit; the three flying control computer core units share the external input/ output interfaces and devices; the sensor data are synchronously acquired in each control cycle so as to perform control rules resolving; the inter-module communication circuit performs data exchange; a monitoring core unit performs validity arbitration or the data according to the arbitration algorithm, then the high-speed analog switch controls some core unit output as a control signal of a performing mechanism. The computer is applied to the flying control of an UAV under an onboard environment and has the characteristics of being convenient to detect fault, accurate to position the fault, reliable in data exchange, and high in performance, stability and reliability of the system in three-machine parallel operation.

Description

Technical field: [0001] The invention relates to a hybrid three-redundancy unmanned aerial vehicle flight control computer and a kernel design method based on PowerPC and x86, belonging to the field of unmanned aerial vehicle flight control. Background technique: [0002] In recent years, with the rapid development of aviation and electronic technology, the performance of UAVs has improved by leaps and bounds. The number of flying tasks is increasing, and the mission requirements are becoming more and more demanding, which makes the structure of UAVs more complex, and the frequency of failures also increases. The flight control system is one of the important systems of the UAV and is the control center of the UAV. Its reliability is an important guarantee for the safety of the UAV. The flight control computer is the core component of the UAV flight control system. It is mainly controlled by the host computer. , input and output interface, power supply, logic circuit and comm...

AI Technical Summary

Problems solved by technology

Similar redundancy means that each redundancy unit of the flight control computer uses exactly the same hardware platform and control software, and the coupling between the redundancy channels is relatively tight, which is likely to cause common state failures; non-similar redundancy refers to the selection of different channels Different hardware platforms and control software, but during the flight, different hardware is prone to random failures

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