Aircraft CFDS (Centralized Fault Display System) data analyzer and implementation method thereof

Abstract

The invention relates to an aircraft CFDS (Centralized Fault Display System) data analyzer and an implementation method thereof. Firstly, the CFDS monitoring status of a line replaceable unit on an aircraft is simulated in an infield workshop; secondly, the LRU (Least Recently Used) workshop test is completed in the infield test, and after the decoding analysis and verification, the test data aretransplanted into an aircraft CFDS data analyzer which consists of an ARINC (Aeronautical Radio Inc) 429 data analyzer and an industrial control mechanism and is communicated with a tested airborne system through an ARINC 429 channel and a discrete I / O channel, and thus the aircraft CFDS analysis is realized. The price of the aircraft CFDS data analyzer is low, the aircraft CFDS data analyzer is provided with a second development interface, and thus the aircraft CFDS data analyzer is easy to independently upgrade by the technicist, and the cost for software upgrading is greatly lowered. The aircraft CFDS data analyzer complies with a modern ATS design standard and can be conveniently transplanted into different automatic test systems, the maintenance resource is saved, abroad technical monopoly is broken, the cost of return for repair and the turnover time of aeronautical materials are effectively reduced, the abroad maintenance rate of part of aircraft components is lowered, and the enterprise competitiveness is improved.

Description

technical field [0001] The invention relates to the technical field of automatic test equipment used for aircraft maintenance, in particular to an aircraft CFDS data analyzer and its realization method. Background technique [0002] Modern aircraft mostly use Centralized Fault Display System (CFDS) as the management center of the working status of each airborne system. CFDS realizes fault isolation and processing of aircraft systems by monitoring the status of line replaceable units (LRU). It provides maintenance personnel with standardized The troubleshooting method helps maintenance personnel to understand the fault status of the aircraft, quickly find the cause of the fault, and eliminate the fault in time. Most modern airborne electronic equipment integrates CFDS functions. Theoretically speaking, these equipment are highly intelligent, and maintenance should be simpler. However, since the automatic test equipment in the domestic civil aviation maintenance field mainly ...

AI Technical Summary

Problems solved by technology

For example, a simple maintenance data update of the original factory will also charge an expensive upgrade fee, and this part of the data information should be provided in the revision of the corresponding component maintenance manual (CMM), because the maintenance company does not have independent intellectual property rights. Unable to upgrade independently, can only accept high upgrade fees, resulting in a situation of constantly catching up and falling behind

[0008] 2) The original special maintenance equipment is generally targeted, and the applicable components are limited

In order to improve the maintenance capability, enterprises need to purchase a variety of maintenance equipment, and the functions of these maintenance equipment are not much different. The difference between many LRU components with different part numbers is only the difference in the function of the CFDS interface, which has caused a lot of duplication of maintenance resources in the enterprise. , it is difficult to achieve a reasonable configuration

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