Data storage device and method based on SAFEBus

Abstract

The invention relates to a data storage device and method based on a SAFEBus and belongs to the technical field of 659 buses. The storage and the export of 659 bus data are realized by adopting a datastorage module. The method is characterized in that a processor reads, encrypts and stores the 659 bus data in a built-in electronic disk: in a running mode, and the processor records the 659 bus data to the built-in electronic disk. In a maintenance mode, a serial port and a network port are externally arranged by utilizing the built-in electronic disk, and the data in the built-in electronic disk is read. The data storage module saves the 659 bus data in a period of time, debugging personnel can retrieve the 659 bus data at a certain particular moment (such as a failure point moment) duringthe period to enhance the maintainability of the 659 bus data. Through encrypting and storing the 659 bus data, the data security is guaranteed; through adding a timestamp, the data conversion is simultaneously performed on the 659 bus data, so that the 659 bus data at a certain particular moment is conveniently found by adopting retrieval software. The data storage device and method provided bythe invention have the benefit that the 659 bus is convenient to debug, so that the product research and development efficiency is improved.

Description

technical field [0001] The invention relates to a data storage device and method based on a SAFEBus bus and belongs to the field of 659 bus technology. Background technique [0002] ARINC659 bus (hereinafter referred to as 659 bus) is a bus-type multi-node serial communication bus driven by timetable, which has the characteristics of deterministic transmission time, high fault tolerance and high reliability. The data storage of the 659 bus has become a major trend in the research and development field of the 659 bus and an important part of the 659 bus application. At present, the methods adopted for the maintenance of the 659 bus are relatively simple, and generally a single trigger is used to check the bus data at a certain time point of the bus. However, it is often difficult to capture the 659 bus data at a specific time point (fault time point) during debugging, because the message time of one frame of the 659 bus is very short. If the 659 bus data at a specific time ...

AI Technical Summary

Problems solved by technology

However, it is often difficult to capture the 659 bus data at a specific time point (failure time point) during debugging, because the message time of one frame of the 659 bus is very short

If the 659 bus data at a specific time point (failure time point) cannot be captured, the maintenance of the 659 bus cannot be started, and the failure of the 659 bus cannot be solved, so the traditional method cannot meet the debugging requirements of the 659 bus development

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