Airborne logic and control assembly detection device and test method thereof

Abstract

The invention relates to the field of airplane airborne equipment detection instruments, in particular to an airborne logic and control assembly detection device and a test method thereof. The airborne logic and control assembly detection device comprises a portable industrial personal computer serving as an upper computer and used for providing a man-machine interaction interface, and further comprises an excitation device and an adapter plate; the method comprises the following specific test steps: S1, selecting the adapter plate matched with a to-be-tested plug-in; S2, starting an upper computer test program; S3, determining the start of the test; S4, powering off and replacing the adapter plate; S5, automatically generating a test result picture by the system. Principle analysis and signal carding of all functional modules are completed by performing full-signal test on all functional plug-ins in the logic and control component; compared with an original detection method, the full-function test of the to-be-tested airborne equipment can be carried out, the detection of a single-function module can also be carried out, and the test coverage rate is higher; soft fault points and functional circuits and components with reduced performance can be effectively identified, and the fault diagnosis capability is higher.

Description

technical field [0001] The invention relates to the field of aircraft airborne equipment testing instruments, in particular to an airborne logic and control component testing device and a testing method thereof. Background technique [0002] The logic and control component is an important airborne device of a certain type of aircraft avionics system, and its main function is to automatically detect related airborne products and systems. If the airborne related products and systems fail in the air, this component will convert and prioritize the received fault signals, record the content and time of each fault information, and transmit the content and time information of the fault information to Display components, display and record alarm information. [0003] In addition to the secondary power supply, the logic and control module contains a total of 9 main circuit board plug-ins, which can be divided into 6 modules according to functions. These 6 functional modules are: (1)...

AI Technical Summary

Problems solved by technology

[0004] Logic and control components, as an important part of the airborne equipment of a certain type of aircraft, have a high failure rate, and most of the failures are caused by the performance degradation of electronic components on the internal circuit board plug-in, and there are many soft faults; the current test method for logic and control components It is: by using the simulated environment on the machine, applying excitation to the cable port of the finished product of the logic and control components, and collecting the screen information output by the finished product, to judge whether the finished product is working normally; this test method and the test equipment developed based on it can only meet the functional test requirements, it is impossible to detect the intermediate signals of internal functional modules, the performance test coverage is low, and it is difficult to effectively reproduce soft faults

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