A control device for ground launch of medium and small rockets based on fpga

Abstract

The invention provides an FPGA (Field Programmable Gate Array) based ground launching control device of a small and medium-sized rocket. The device comprises a main control computer, a ground control box, a signal conditioning case which uses FPGA as the core, and a missile device; the main control computer receives and feeds back a signal through an RS422 communication interface; the ground control box is used for performing hardware control for the system; the signal conditioning control case comprises the combination of a PCB and a power supply; the PCB comprises a level isolation conversion circuit which uses the FPGA as the core, a power-on sequence control circuit, a voltage AD acquiring circuit, an RS422 isolation conversion circuit, an RS422 relay circuit, a level conversion circuit in a head power supply circuit, and a corresponding filter circuit; the missile device comprises a missile distributor, a missile battery combination and a missile electrical device. With the adoption of the device, the functions of supplying power to the missile device from the ground, activating the missile battery, converting power, cutting off power supply, controlling a pressure release valve, and controlling ignition can be realized; the device has the characteristics of being safe, reliable, small in cost, short in development cycle, fast in speed, high in efficiency, and high in real-time performance.

Description

technical field [0001] The invention belongs to the technical field of ground test launch control, in particular to an FPGA-based ground launch control device for small and medium-sized rockets. Background technique [0002] FPGA (Field-Programmable GateArray), that is, field programmable gate array, is a product of further development on the basis of programmable devices such as PAL, GAL, and CPLD. It emerged as a semi-custom circuit in the field of application-specific integrated circuits (ASIC), which not only solves the shortcomings of custom circuits, but also overcomes the shortcomings of the limited number of original programmable device gates. [0003] The ground launch control system is an important part of the aircraft control system. It has the functions of protecting the equipment on the missile during the aircraft test, setting the system state before launch, and controlling the launch ignition. Its performance directly determines the flight effect of the aircra...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of the traditional launch control system, such as large volume, single test function, low efficiency, large interference between signals, poor test accuracy, etc., and propose a small and medium-sized rocket ground launch control device based on FPGA

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