CCSDS AOS protocol data real-time processing method and system

Abstract

The invention discloses a CCSDS AOS protocol data real-time processing system. Protocol data are processed in real time based on a centralized scheduling and distributed parallel processing architecture. The system comprises: a scheduling decision module which is used for collecting real-time processing operation, distributing hardware processing resources and sending a starting or stopping instruction of a processing module; a scheduling execution module which is used for executing a task of starting or stopping the processing module according to the instruction sent by the scheduling decision module; a distributed parallel processing module which is used for implementing tasks of frame transmission, source package, user frame format processing and quality detection, engineering data physical quantity inversion, detection data decompression and image color restoration, and processing result distribution and storage; and a data processing state monitoring module which is used for monitoring the operation state of the processing module, processing statistics and processing logs. The treatment performance of the system is superior to 300 Mbps.

Description

technical field [0001] The invention is mainly applied to the field of aerospace engineering ground application systems, and in particular relates to a method and system for real-time processing of CCSDS AOS protocol data. Background technique [0002] In order to fully share the scarce space link resources and meet the transmission and application requirements of satellite subsystems with different rates and formats of data, most spacecraft at home and abroad have adopted the Consultative Committee for Space Data System (CCSDS) advanced in- Orbit System (Advanced Orbit System, AOS) protocol standard. Such as figure 1 As shown, the standard adopts a two-level multiplexing mechanism of packet channel multiplexing and virtual channel multiplexing, which respectively realizes the collection and transmission of multi-source data within each subsystem of the satellite and between subsystems. [0003] The payload detection data following the AOS protocol standard is the only way...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the traditional centralized, serial AOS protocol data real-time processing data throughput rate is not high, the available hardware processing resources are limited, and cannot meet the increasing AOS protocol data real-time processing performance requirements;

Images