Micro/nano satellite universal testing system based on PXI bus

Abstract

The invention relates to a micro / nano satellite universal testing system based on a PXI bus, wherein the system belongs to the technical field of satellite testing. The testing system comprises a PXIhardware subsystem and an upper computer in which LabVIEW software is installed. The PXI hardware subsystem performs communication with the upper computer and a tested object through a serial port busand a CAN bus. The PXI hardware subsystem comprises a PXI cabinet, a master controller, a signal conditioning module, a data acquisition module and a CAN communication module. The master controller,the signal conditioning module, the data acquisition module and the CAN communication module are integrated in the PXI cabinet and are connected with the PXI cabinet through a PXI cabinet backboard bus. The master controller controls and schedules each functional module board through a PXI / PXIe blended backboard bus. The micro / nano satellite universal testing system has advantages of high versatility, high system software degree, and high testing system architecture flexibility. The micro / nano satellite universal testing system can satisfy different testing requirement and quick and low-cost developing characteristics of each module in the developing period of the micro / nano satellite and furthermore has automatic testing capability.

Description

technical field [0001] The invention relates to the technical field of satellite testing, in particular to a general micro-nano satellite testing system based on a PXI bus. Background technique [0002] Micro-nano-satellites are one of the important directions of satellite development. With the rapid development of Micro-Electro-Mechanical Systems (MEMS), embedded computers, new materials, and new launch technologies, micro-nano-satellites are becoming more and more important in new technology verification, Fields such as earth observation have broad prospects for development. The classification of micro-nano-satellites mainly adopts the method proposed by Surrey Satellite Technology (SSTL), including 10-100kg micro-satellites and 1-10kg nano-satellites. At the same time, micro-nano satellites have the characteristics of low cost, short R&D cycle, and highly integrated design. Compared with traditional satellites, they also have the advantages of flexible launch, constellat...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a general-purpose micro-nano-satellite test based on the PXI bus to solve the problem that the existing test equipment cannot meet the test requirements of short development cycle, low cost, constellation cooperative operation, and flexible reconfiguration characteristics of micro-nano satellites. system, the test system has strong versatility, high degree of system software, and high flexibility of the test system architecture, which can meet the different requirements of the test of each module in the micro-nano satellite research and development stage, and has the characteristics of fast and low-cost research and development, and has automated testing capabilities

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