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Aircraft test signal shunt processing method

A technology for branching processing and testing signals, which is applied in aircraft component testing, instruments, and measurement electronics, etc. It can solve the problem that measurement and control systems and ground test equipment cannot receive and monitor various signals of aircraft at the same time, and improve the level of testability design. , The effect of on-site testing is simple and easy to operate, and the design and implementation are simple.

Active Publication Date: 2018-03-06
JIANGXI HONGDU AVIATION IND GRP
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the measurement and control system and ground test equipment cannot receive and monitor various signals of the aircraft at the same time during the aircraft test, it is necessary to design a new method for receiving and processing the aircraft measurement and control signals in separate channels, so as to realize the aircraft in the whole system connection state. The ground test can be carried out under the environment, which reduces the difficulty of on-site test operation and improves the detection rate of aircraft faults.

Method used

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention is further described:

[0017] Such as figure 1 , figure 2 As shown, the present invention divides all the signals in the original measurement and control signal transmission channel of the aircraft, and designs the impedance matching of the communication interface; manufactures a set of signal splitting receiving and transmission cables, and divides the downlink signal of the aircraft into two paths, One way is sent from the transfer interface to the ground test equipment, and the other way is sent back to the measurement and control system, which ensures that the aircraft is tested in the connection state of the whole system, and significantly improves the testability design level of the aircraft.

[0018] The signal branch receiving and transmission cables include: a one-to-one signal straight-through cable 2 from the test equipment to the transfer interface and a three-interface transfer cable 4...

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Abstract

The invention belongs to the aircraft test equipment, and especially relates to an aircraft test signal shunt processing method. The method enables aircraft test signals to realize shunt processing and design, and solves the defects that an original detection and control signal transmission channel of an aircraft is cut off, the operation difficulty is large and the test design level is low in a conventional test method. The new aircraft test signal shunt processing method is simple in design implementation mode, is simple in field test operation and obviously improves test design level of theaircraft.

Description

technical field [0001] The invention belongs to aircraft test equipment, in particular to a method for branching and processing aircraft test signals. Background technique [0002] When conducting ground tests on the aircraft, it is generally necessary to clarify the test items and methods first, design the corresponding test interface on the aircraft, and develop a supporting connection channel for the test interface, and connect various digital signals and analog signals of the measurement and control system on the aircraft. Introduce testing equipment for monitoring and judgment. In this process, it is often necessary to cut off the original signal transmission channel of the measurement and control system, and then introduce the measured signal into the test equipment for detection and processing. This kind of design method affects the state test of the whole system of the aircraft to a certain extent, increases the difficulty of on-site operation, and reduces the testa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00B64F5/60
Inventor 刘永安鞠新星刘毅童琴张成标鲁振华袁欢欢徐志龙朱倩倩周恩华李永强罗海鹰张洪宇
Owner JIANGXI HONGDU AVIATION IND GRP
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