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Data storage device and method based on SAFEBus

A data storage device and bus technology, which is applied in the field of 659 bus, which can solve the problems of short message time for one frame, difficulty in capturing 659 bus data, and the inability of traditional methods to meet the debugging requirements of 659 bus, so as to ensure data security and facilitate debugging Effect

Inactive Publication Date: 2018-06-29
XIAN FLIGHT SELF CONTROL INST OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Data storage device and method based on SAFEBus
  • Data storage device and method based on SAFEBus
  • Data storage device and method based on SAFEBus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The model M2GL025T-1FGG484I field programmable gate array is used to design the bus interface unit BIU module, and the model MPC8378ECVRANGA processor produced by Freescale is used as the data storage device processor. The CPU reads and sends 659 bus data through the bus interface unit BIU module. 659 bus data storage device hardware architecture see figure 1 .

Embodiment 2

[0042] The 659 bus data is stored on the electronic disk with the model number SST39VF3201-70-4I-E produced by SST Company.

Embodiment 3

[0044] The RJ45 connector with the model number 09 45 551 1130 produced by HARTING is used as the network port for exporting the 659 bus data. The USB interface of the model number USB-B-S-S-B-TH produced by the company is used as two serial ports with different functions.

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PUM

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257Y02P90/02
Inventor 牛萌宋阳杨光岳林左忠卫程建峰赵志鹏冯博
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC
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