Non-similar three-redundancy onboard electric load management center

Abstract

The invention discloses a non-similar three-redundancy electric load management center, which consists of a three-redundancy passage electric load management center and an auxiliary control center, wherein core control chips of the three-redundancy passage electric load management center respectively adopt two DSPs (digital signal processors) and one FPGA (field programmable gate array), the different core control chips are adopted, great differences are realized on a hardware structure, and the non-similar redundancy design in the hardware level is realized. The two redundancies of the core control chips respectively the adopting DSPs adopt different programming languages and algorithms in the software design aspect, and the non-similar algorithm design at the software level is realized. The three-redundancy passage electric load management center synchronously collects data, generates electric load control instructions, and realizes the voting through the auxiliary control center, the enabled passage electric load management center works, and other passages are closed. The non-similar three-redundancy electric load management center has the advantages that the non-similar redundancy design is adopted, the homomorphic fault can be reduced, the system task reliability is improved, and higher practical values can be realized.

Description

technical field [0001] The invention relates to airborne power distribution technology, computer technology, communication technology, etc., and belongs to the field of aviation electrical systems. It specifically relates to a non-similar three-redundancy airborne electrical load management center based on DSP and FPGA, which can be applied to unmanned aerial vehicle airborne power distribution systems. Background technique [0002] With the rapid development of multi-electric / all-electric aircraft in recent years, electrical airborne equipment has increased significantly, which puts forward higher requirements for the aircraft's power distribution system. In order to meet the power distribution requirements of multi-electric / all-electric aircraft, advanced solid-state power distribution and automatic load management technologies are mainly used to realize automatic power distribution of aircraft. The automatic power distribution system refers to the aircraft electrical sys...

AI Technical Summary

Problems solved by technology

Similarity redundancy refers to the design of software and hardware with the same structure for each redundancy channel. Although the similarity redundancy design has a simple structure and reduces development costs, due to the tight coupling between redundancy channels, homomorphic failures are prone to occur, namely All redundancies fail at the same time under a specific working state and working environment

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