Flight navigation data loader based on FPGA

Abstract

The invention discloses a flight navigation data loader based on an FPGA. The flight navigation data loader mainly overcomes the defects that an existing flight navigation loader is small in storage capacity, and stored data are prone to being lost. The device is composed of a data card (1) and an installation box (2), wherein the data card (1) comprises a serial port level conversion module, a storage module, a control module and a power supply module; the serial port level conversion module realizes level conversion between an I / O port of the control module and a serial port signal, the storage module stores flight navigation data, the control module writes an operation instruction into the storage module according to a received signal and feeds back an operation result to the Doppler navigation system, and the power supply module provides working voltage for each module. The mounting box (2) is connected with a Doppler navigation system on an airplane, and the data card (1) is inserted into the mounting box (2) to realize data transmission between the data card and the Doppler navigation system. The method is large in storage capacity and low in data loss probability, and can be used for loading flight navigation data for an airborne Doppler navigation system.

Description

technical field [0001] The invention belongs to the technical field of data management, and in particular relates to an airborne flight navigation data loader, which can be used to realize flight navigation data storage and loading between ground equipment and an airborne Doppler navigation system. Background technique [0002] Doppler navigation systems mounted on helicopters or fixed-wing aircraft usually need to preset flight navigation data before takeoff. Since the on-board Doppler navigation equipment is generally an embedded system with limited keys, using the on-board Doppler navigation equipment to preset the flight navigation data such as waypoints and routes directly has low editing efficiency, error-prone and difficult to change, so it is necessary to design a A flight navigation data loader edits and quickly loads flight navigation data. [0003] The flight navigation data loader used by the current airborne Doppler navigation system uses RAM as the data memory...

AI Technical Summary

Problems solved by technology

[0004] With the operational requirements of long flight time and complex flight missions, the Doppler navigation system puts forward higher requirements for the storage capacity and storage time of flight navigation data such as waypoints and routes. The flight navigation data loader can no longer meet the needs of Xinyan Doppler navigation system for the large storage capacity and long data storage time of the flight navigation data loader

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