Multifunctional fault injection device based on PXI bus

Abstract

The invention discloses a multifunctional fault injection device based on a PXI bus, which is used for fault injection on a tested device. The multifunctional fault injection device comprises a PXI bus protocol conversion part, a fault injection control logic generation part, a fault simulation part and a fault injection output part, wherein the PXI bus protocol conversion part is connected with a PXI chassis back plate through a PXI bus, and is used for converting PXI bus control logic data transmitted by the PCI bus and the PXI chassis back plate into local control logic data; the fault injection control logic generation part generates fault injection control logic data according to local control logic data; the fault simulation part generates fault simulating signal and / or state according to the fault injection control logic data; the fault injection output part is used for injecting the fault simulating signal and / or state into the tested device.

Description

technical field [0001] The technical field of fault simulation and testing of the present invention relates to the verification and evaluation of fault on-line detection capability, and in particular to a multifunctional fault injection device based on PXI bus. Background technique [0002] In order to judge whether the testable design level of the product has reached the index requirements stipulated in the contract, it is necessary to carry out testable verification tests, that is, to inject a certain number of faults into the developed equipment to accelerate the occurrence of errors and failures in the system. Using testable design The specified test method is used for fault detection and isolation, and the online fault detection capability of the equipment is evaluated according to the results. [0003] At present, there are few common types of fault injection products on the market. A class of fault injection equipment with automatic control functions mostly adopts a s...

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Problems solved by technology

[0003] At present, there are few common types of fault injection products on the market. A class of fault injection equipment with automatic control functions mostly adopts a separate structure and solidified software. If a comprehensive combination of functions is required in use, it will bring complex structure and operation. The problem is that it is not suitable for the field application of complex equipment testing verification tests, and the cost is extremely expensive; another type of fault injection equipment is not only not perfect in function, but also simulates fewer types of faults or uncontrollable parameters such as injection time

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