Unified access and protocol conversion board card for heterogeneous equipment of unmanned aerial vehicle

Abstract

The invention provides a unified access and protocol conversion board card for heterogeneous equipment of an unmanned aerial vehicle. The board card comprises an FPGA module, a power supply module, a clock module, a photoelectric conversion module, a storage module, an interface circuit module and a connector module, the board card supports SDI, CAN, asynchronous RS422, synchronous RS422, 1000Base-T Ethernet port, optical fiber Rapid and PCIe interfaces; the board card provides the PCIe interface which is a unified interconnection interface of an access board card and a main processing card of a task computer; the board card supports conversion of physical levels of various interfaces into general TTL levels; the board card supports analysis of physical layer protocols and transmission protocols of various interfaces; and the board card supports data parallel transceiving of various interfaces. According to the invention, the requirements for diversified interfaces of airborne equipment are met; design and development of the equipment access system are simplified; the efficiency of data transmission between devices is improved; and flexible use of load equipment is supported.

Description

technical field [0001] The invention relates to the field of UAV onboard computers, in particular to a UAV onboard heterogeneous equipment unified access and protocol conversion board. Background technique [0002] Existing UAV systems usually need to interconnect multiple sub-devices, including flight control equipment, mission computers, communication equipment, and a large number of mission loads (equipment equipped on the aircraft to complete certain tasks). The traditional method uses a point-to-point method to connect devices that need to be interconnected, such as using an asynchronous RS422 interface to connect devices that transmit small amounts of data, using synchronous RS422 interfaces to connect devices that transmit large amounts of data; or using bus technology to connect devices to a master computer. With the improvement of the processing performance of the airborne computer and the development of the airborne equipment, the interconnection method of the exi...

AI Technical Summary

Problems solved by technology

There are different types of device interfaces, and the fixed static interface types and quantity of the existing system cannot meet the requirements of various and dynamically variable interface types and quantities; It is determined that in the process of adapting the device, different software and hardware systems need to be designed for different devices. Once the device is replaced or added, it is even necessary to redesign the hardware interface circuit and the corresponding driver. incompatible

[0004]The UAV system is connected to a variety of heterogeneous devices, and there are many device interfaces. The access board supports a limited variety and quantity of interface types

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