Onboard fault locating system for ICNI device

Abstract

The invention provides an onboard fault locating system for an ICNI device and aims at providing a fault locating system accurate in localization, stable and reliable, and operable via a graphical interface. A technical scheme of the invention is that a data acquisition analysis subsystem acquires the operating state parameters of circuit modules in each LRU or LRM of the ICNI device, filters and analyzes data of a selected sensor function, and circularly updates data content to a human-machine graphical interface; a resource scheduling parameter configuration subsystem simulates an avionic system in order to send control and parameter configuration commands to the ICNI device, and may flexibly select a universal module and a hardware channel used by an internal functional threading of the ICNI device according to a locating requirement; a simulated failure injection subsystem constructs interface control data of a fault according to a requirement, injects the fault into any internal module or channel of the ICNI device, issues the fault to the ICNI device, queries the modified fault content of the ICNI device, triggers an ICNI reconstruction mechanism, and locates and checks sensor function and module faults.

Description

technical field [0001] The invention relates to a system suitable for establishing an integrated communication navigation identification device (ICNI) test environment and fault location on an aircraft. Background technique [0002] Communication, navigation and identification (CNI) equipment is an important part of the avionics system. With the rapid development of electronic technology, its technology is developing towards integration, modularization and digitalization. The integrated CNI equipment is quite different from the traditional CNI equipment. Traditional CNI equipment is a system based on equipment-level design, while integrated CNI equipment is based on general-purpose modules, which strengthens equipment redundancy backup and resource reconstruction to improve sensor functions, redundancy and reliability of task execution. system. ICNI has three working modes: one is the normal working mode, which provides the full working capacity of the system, and its disp...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an easy-to-operate solution for the shortcomings of the existing self-inspection fault detection rate and fault isolation rate that cannot reach 100%, cannot fully cover test, and can only configure ICNI equipment through the avionics system on the aircraft. , Accurate positioning, flexible expansion, stable and reliable fault location system that can be operated through a graphical interface

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