Flight Gear general three-dimensional scene data displaying method based on field programmable gate array (FPGA)

Abstract

Provided is a Flight Gear general three-dimensional scene data displaying method based on a field programmable gate array (FPGA). The method includes that an FPGA chip is adopted, coding of Verilog hardware description language (HDL) language is conducted on the FPGA chip, and a data transmission protocol 1 is self-defined so as to enable the FPGA chip to finish receiving of serial data of specific frame format and with the baud rate of 115200 bps, analysis of data of a self-definition communication protocol 1 is finished in the FPGA, and the data is processed through corresponding algorithms. Then, the processed data is coded and packaged through another self-definition communication protocol 2 and transmitted to a Simulink project operated on a personal computer (PC) with the baud rate as 115200 bps, a series of data processing is conducted in the Simulink. Finally, corresponding gesture data is transmitted to Flight Gear software through a user datagram protocol (UDP) network transmission module to be displayed in real time in a three-dimensional (3D) mode. The Flight Gear general three-dimensional scene data displaying method has the advantage that design and simulation of an aerospace vehicle controller, simulation of an unmanned aerial vehicle controller, simulation of guided missile control, simulation of vehicle and ship controllers and 3D visual reproduction of actual aircraft test flight data and the like can be well achieved, and a use range is wide.

Description

technical field [0001] The invention relates to a data display method, in particular to a FPGA-based general three-dimensional visual data display method of FlightGear. Background technique [0002] [0003] In view of the lack of functions of the traditional simulation data processing and graphic display modules, the flight status of the aircraft can only be reflected through text data or curves. In the simulation test, flight control designers need to spend a lot of energy to monitor the flight data. A large amount of test data can only be analyzed and sorted through the combination of text and curves, which cannot intuitively reflect the flight attitude of the unmanned helicopter, and the intuitive description of the flight state is relatively poor. Contents of the invention [0004] The invention relates to a general-purpose three-dimensional visual data display method of FlightGear based on FPGA, which can be used for three-dimensional visual simulation of aircraft f...

AI Technical Summary

Problems solved by technology

[0003] In view of the lack of functions of the traditional simulation data processing and graphic display modules, the flight status of the aircraft can only be reflected through text data or curves. In the simulation test, flight control designers need to spend a lot of energy to monitor the flight data. A large amount of test data can only be analyzed and sorted through the combination of text and curves, which cannot intuitively reflect the flight attitude of the unmanned helicopter, and the intuitive description of the flight state is relatively poor