A new universal ground test system for intercom

Abstract

The application provides a general ground test system for an intercom, including a test bench, a combined cable, and a data processing computer. The alarm sound function can be tested individually, and can be integrated into the integrated avionics system for joint testing; the combination cable provides plugs and serial ports between different types of intercoms and test benches, and uses low-cost self-combining movable pins to convert to The standard serial port carries out cross-linking transmission of signals; the software of the data processing computer contains a database, and the data processing computer automatically designs the combined cable according to the numerical control of the database.

Description

technical field [0001] The present application relates to the technical field of measurement and control of avionics systems, in particular to a novel general ground test system for intercoms. Background technique [0002] The in-flight intercom is an important part of the aircraft communication system. It is used for the calls between the members of the aircraft, the voice communication between the aircraft and the tower and different aircraft members, and to monitor various alarm voices. Since there are many cross-linking devices in the in-flight intercom, the working principle is relatively complicated, and the corresponding requirements of various types of aircraft are different, so there are many differences in the technical status of different models of the intercom. The disadvantages of traditional testing methods are as follows: [0003] 1) Poor versatility: single function, single serial port, and strong specificity, only a single type of intercom can be tested. ...

AI Technical Summary

Problems solved by technology

[0003] 1) Poor versatility: single function and serial port, strong specificity, can only test a single type of intercom

[0004] 2) Hardware dependence: When the medium or channel characteristics of a certain type of intercom change, the hardware corresponding to the test environment must be completely updated; debugging is relatively complicated, with low precision, weak anti-interference ability, and low reliability

[0005] 3) Low integration: There are many cross-linked devices in the intercom, and it is often necessary to build a large number of signal sources and output simulations on the ground to simulate the real environment. There are many supporting devices, which are bulky and difficult to carry. When introducing or shielding various system errors There are still defects in the device, the device is easy to age, and the cost is high

Images