Integrated multi-channel DVI video distribution equipment

Abstract

The invention discloses integrated multi-channel DVI video distribution equipment. The equipment comprises an ARINC 429 bus controller, an FPGA overall control module, a DVI interface protection unit, an equalization adjustment unit, a DVI selection and distribution unit, a DVI distribution unit, and a power conversion unit, wherein the DVI interface protection unit comprises 14 independent DVI interface protection modules; the equalization adjustment unit comprises 7 independent equalization adjustment modules; the DVI selection and distribution unit comprises 5 independent DVI selection and distribution modules; the DVI distribution unit comprises 2 independent DVI distribution modules; and the power conversion unit comprises a power conversion module and a secondary power conversion module. The equipment is additionally mounted between a DPU and an airborne display, and has the advantages that the requirement for video signal extraction of a 5-channel airborne flight display and a 2-channel head-up display of a certain airplane model is satisfied, the function of multi-channel DVI video distribution is achieved, and a same DVI video signal can be simultaneously displayed and acquired at a back end.

Description

technical field [0001] The invention belongs to the field of flight test technology, and in particular relates to a multi-channel DVI video integrated distribution device. Background technique [0002] In the flight test, the acquisition of the video signal of the airborne combination display device and the airborne head-up display has become an indispensable part of the airborne test chain. However, the DVI video signal cannot be directly extracted, and a DVI video signal distributor must be installed to distribute and process the video signal, and at the same time meet the display requirements of the airborne composite display device / airborne head-up display and the collection requirements of the airborne video acquisition equipment. [0003] The current DVI video signal distribution equipment has some shortcomings: DVI video signal transmission is affected by the length of the cable, and the balance is not easy to adjust; a single device only supports 1~3 channels of DVI ...

AI Technical Summary

Problems solved by technology

[0003] The current DVI video signal distribution equipment has some shortcomings: DVI video signal transmission is affected by the length of the cable, and the balance is not easy to adjust; a single device only supports 1~3 channels of DVI video signal distribution at the same time, and the extraction of multiple DVI video signals from large aircraft is limited. ; The installation location is limited, and the signal is susceptible to interference

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