Generalized spacecraft comprehensive-electronic-system

Abstract

The invention discloses a generalized spacecraft comprehensive-electronic-system. The system includes an application layer, a middleware layer, an operating system layer and a resource service layer.The application layer is specific implementation of top-level management and task functions of the comprehensive electronic system, and contains multiple partitions isolated in time and space. Management and task processing functions of the application layer are implemented in each partition. The middleware layer provides partition management, partition communication services, operating system general-services, extended public services and the like for the application layer. The operating system layer provides an operating environment for the middleware layer, and provides partition management, partition communication and system general-services upwards. The resource service layer provides drives for an operating system and a CPU, and provides hardware access interfaces for the operating system. According to the system, downward layer-by-layer isolation of the middleware layer, the operating system layer and the resource service layer is utilized, the system is enabled to have very good portability, and a partition architecture of the application layer improves security and reliability of the system.

Description

technical field [0001] The invention belongs to the field of overall design of spacecraft and relates to a generalized integrated electronic system of spacecraft. Background technique [0002] At present, the electronic systems of most domestic spacecraft are still in the discrete design stage, that is, each functional unit is independently developed as a stand-alone or subsystem that meets certain functions, and then connected one by one through cables or buses. Generally based on electromagnetic compatibility design and thermal design considerations, each stand-alone or subsystem has its own "square". [0003] The spacecraft electronic system with discrete design has many redundant hardware resources, a large number of devices, and many types. The realization of specific functions needs to be designed separately for each device. When the hardware part is modified, the interface relationship changes, or the system function changes, It needs to be redesigned and the workloa...

AI Technical Summary

Problems solved by technology

For the electronic system designed using the 1553B bus architecture, part of the integrated design has been realized, but the sub-system equipment is still designed separately on its own hardware platform, the effect of weight reduction and consumption reduction is limited, and the function realization module is closely connected with the hardware platform, which is not necessary facilitate its reuse

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