Design And Implementation Of Gun Load Platform System For Unmanned Aerial Vehicle

With the rapid development of UAV(Unmanned Aerial Vehicle)weapons,the soldier UAV weapon plays an important role in modern warfare.The domestic UAV weapons have the ability to attack with bombs,but there is no UAV weapon can assault some designated locations with firearms.Based on the domestic small multi-propellers UAV,this paper designs a set of gun load platform system,which is designed to achieve the purpose of hovering search,finding and distinguish,aiming and track,accurately killing within a 100 meters.Following is the main contents of the article.(1)The overall technical scheme design of system.Firstly,the object process methodology is introduced and used to analyze the functional requirements of this system,and each subsystem related to functional requirements is also proposed.Finally,the composition and working principle of the gun load platform system are elaborated detailedly,including the functions and implementation scheme of each subsystem.(2)The design of platform structure and electrical system.This chapter introduces the working environment and structure functional requirements of platform,and analyzes the working space of the platform.Secondly,the hanging structure between UAV and platform,servo-stablizition platform,gun`s installation structure,insurance and firing structure are designed.And the statics analysis and dynamics analysis are carried out through ANSYS software so that the feasibility of the platform is verified theoretically.Finally,the servo motor and position sensor of the platform are selected and their working characteristics are analyzed.the prototype of the platform is made.(3)The design and implementation of the platform control system.This chapter analyzes the control principle of the platform,and gives the correlation diagram of each control unit.Then,the PID control algorithm and H∞ control algorithm are studied and step response simulation is carried out On the basis of the servo motor model.The PID control algorithm is chosed as the control algorithm of this system due to the simulation results.Finally,the hardware design of the control system is completed(4)The experiment of the platform system and the analysis of the measurement data.In order to verify the stability control performance of weapon system,the stability precision experiment,firing experiment and ground vehicle experiment are completed,and the wireless AHRS attitude recorder is used to collect the stability data,and analyzing the stability accuracy of the system.