Airplane bus cable test equipment and test method

Abstract

Airplane bus cable test equipment and a test method are disclosed. The equipment comprises a portable case, a detection host and a detection sub-machine are arranged in the case, and the detection host comprises a power supply module, a man-machine interaction interface, a comprehensive test module, a host communication module and a test port. The detection sub-machine comprises at least one bus test signal transmitter, the bus test signal transmitter comprises a power supply module, a signal generation module, a sub-machine communication module and a test signal transmitting port, and during testing, a test instruction is input through the human-computer interaction interface of the detection host, the signal generation module of the detection sub-machine generates a matched standard test signal, the comprehensive test module analyzes the test signal to obtain a test result, and then the test result is sent to the human-computer interaction interface to be displayed.

Description

technical field [0001] The invention relates to aircraft manufacturing technology, in particular to an aircraft bus cable testing device and a testing method. Background technique [0002] With the continuous progress and application of science and technology such as computer and network communication, modern avionics systems are developing rapidly in the direction of integration, modularization and intelligence, and one of the key supporting technologies to achieve these development goals is aviation bus technology. At present, a series of standards and specifications have been defined in the field of aviation bus, such as the HB6096 bus standard, GJB289A bus, RS422 bus, etc., which have been widely and maturely used. The new aircraft system has a complex structure, large amount of data transmission inside and outside the system, and high real-time requirements. Therefore, multiple bus multiplexing methods are often used to form a complex and high-crossover aviation bus sys...

AI Technical Summary

Problems solved by technology

[0003] Due to the large differences in electrical characteristics, topological structures, protocol standards, etc. of various buses, the current bus cable test equipment has a single function and strong specificity, and usually only tests a certain type of specific bus.

In order to meet the test requirements of aircraft multi-type buses, it is necessary to purchase multiple traditional dedicated bus test equipment, which is expensive, inconvenient to use, and the large footprint of multiple test equipment is not convenient for on-board use

In addition, due to the complex topology of the aircraft bus network, the bus cable ports are located all over the installation positions of various airborne equipment in the aircraft. The conventional dedicated bus detection equipment needs to connect both ends of the tested cable at the same time, which is only applicable to the two ends of the wiring harness. The working condition of moving and connecting to the equipment at the same time does not meet the needs of in-situ testing of long-distance bus cables that have been arranged in the aircraft environment

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