1553B bus network emulation system applied to spacecraft system

Abstract

The invention discloses a 1553B bus network emulation system applied to a spacecraft system, which belongs to the field of aerospace and computer emulation. The 1553B bus network emulation system comprises a 1553B bus, the Ethernet, a bus network tester, a bus terminal tester, a digital phosphor oscilloscope, a bus separation switch, an emulation terminal, a bus system performance estimation computer and a bus interface control file configuration computer, and is used for emulating and analyzing the information transmission and system running of an actual spacecraft bus system. The 1553B bus network emulation system replaces conventional cable connection with a 1553B bus network, realizes the digitalized transmission and comprehensive utilization of network system information and improvesthe reliability and electromagnetic compatibility of the system by equipment with standard digital interfaces in combination with Ethernet communication, meets 1553B specifications, realizes coexistence in one network emulation system, can be used for a plurality of stages of analysis, development, test and the like of the spacecraft system and is of great importance to researches on the reliability of the actual spacecraft system.

Description

technical field [0001] The invention belongs to the technical fields of aerospace and computer simulation, in particular to a 1553B bus network simulation system suitable for spacecraft systems. Background technique [0002] With the development of space science and technology, the functions and structures of spacecraft are becoming more and more complex. The network topology of spacecraft systems has become the development trend of complex spacecraft, and it also puts forward higher requirements for the reliability design of spacecraft systems. . Existing general application topology network system, the system is designed according to the requirements of specific tasks, and the information integration is realized through cable connection between devices. The scalability and reliability of the system are limited to a certain extent. The ability is low, and it is difficult to meet the actual task requirements. The MIL-STD-1553B bus, which was originally used in the field of...

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Problems solved by technology

[0003] However, the 1553B bus is used in the spacecraft system. Since the bus has a multi-data stream mode and is connected to each terminal, when the system structure is complex, direct or indirect line failures are likely to occur, and the system performance cannot be guaranteed. Therefore, it is necessary to Simulate and analyze the bus network of the spacecraft system to verify the performance of the bus and improve the reliability of the system

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