A testing device and operation method for broadband aviation electronic bus

Abstract

The invention discloses a testing device and operating method of broad band aerial electronic bus, which comprises the following parts: host unit, bus testing interface unit, dielectric unit, wherein the host unit connects the bus testing interface unit, which connects the dielectric unit; the tested unit connects the dielectric unit; the bus testing interface unit is composed of host interface unit, protocol control unit, station management unit, accident injecting unit and dielectric interface unit. The operating method of the device comprises the following steps: supplying power for the system; operating the program automatically; selecting different testing patterns with (1) frame format operating pattern, (2) station management operation pattern, (3) multi-station loop operation pattern, (4) multi-priority message modulating pattern, (5) pattern condition conversing mode, (6) key joint condition parameter pattern through mouse. The invention reduces the testing cost with simple operating method, which makes the human and machine interface amiable with strong repeatability.

Description

(1) Technical field: [0001] The invention relates to the test of a wideband avionics bus, and provides an evaluation platform for detecting its working performance for the bus system, specifically, refers to a wideband avionics bus testing device and its operation method, belonging to the avionics bus Test device technical field. (two) background technology: [0002] With the development of avionics technology, avionics bus technology has undergone generational evolution from discrete, combined, and even integrated. The broadband avionics bus system is an integrated information system used for information exchange and resource sharing between avionics subsystems. It is a crucial "central nerve" in the avionics system. Compared with vertical and joint avionics bus technologies, it has higher throughput, lower message delay and higher reliability. Therefore, how to use a reasonable method to test and verify the basic performance and functions of the broadband avionics bus sy...

AI Technical Summary

Problems solved by technology

At home and abroad, there are corresponding test methods and relatively mature test systems for traditional avionics buses (such as ARINC429, MIL-STD-1553B), but due to the particularity of broadband avionics bus systems (high bandwidth 50Mbps; time-limited token message passing; priority assignment), which makes it different from the traditional bus system (point-to-point method of ARINC429, command response method of MIL-STD-1553B) test content and test method

In addition, due to the specificity of traditional test devices, the previous test systems and devices can only be used for the test and evaluation of a specific bus, but not for the basic performance and function evaluation of the wideband avionics bus (HSDB).

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