Diverse satellite-borne electronic equipment in parallel system

Abstract

The invention discloses diverse satellite-borne electronic equipment in a parallel system. Communication topology of the system is achieved through double buses, and bridging of the two buses and information interaction between the two buses are completed through a communication module; function modules of the first type are connected with the first bus through a master-slave parallel framework, a symmetric parallel framework or a cluster parallel framework and are communicated with the first bus in a flow control mode; the flow control mode includes that the data communication process is divided into a plurality of layers of the processing streamline process responding layer by layer according to data sources, data hosts and data processing; the second bus is maintained through an auxiliary controller, data from function modules of the second type are collected independently in advance, the data are stored in an off-chip extended memory, and the function modules of the second type are maintained periodically. A layering time multiplexing system storage structure is achieved through on-chip storage resources and the off-chip extended memory.

Description

technical field [0001] The invention relates to the technical field of space vehicles, in particular to a variety of on-board electronic equipment with a parallel system. [0002] Background technique [0003] With the improvement of orbit control and measurement accuracy requirements of spacecraft, and the development trend of miniaturization and low cost of spacecraft. The design of the on-board electronic equipment of the aircraft platform is also developing towards the requirements of high performance, integration, miniaturization, and productization due to application requirements. Restricted by the procurement of imported components, the current domestic research and development of on-board electronic equipment is subject to more restrictions. At the same time, the particularity of the space application environment also limits the design process of aerospace devices, resulting in the current situation that the processing chips for space applications have low operatin...

AI Technical Summary

Problems solved by technology

Real-time interface processing through software not only lacks the ability to maintain the hardware interface, but also increases software switching overhead, resulting in excessive software load and lower overall system performance.

The use of SRAM-type FPGAs limits the extended storage resources of the system to the size of the FPGA, and the characteristics of SRAM-type FPGAs that are prone to single-event flips prevent them from being applied to key on-board electronic equipment.

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