A High-speed Ammunition Feed Device Control System

This article introduces a control system for a high-speed ammunition feeding equipment. This high-speed automatic ammunition feeding equipment is composed of five parts, they are the master control casing, parallel units, operation software of host computer, electric motor, and sensors etc. Considering the controlling tasks and structural characteristic, this article design, implement, and validate the control system for the high-speed ammunition feeding equipment.Proposed control system consists of five modules. They are host computer control module, sub computer control module, sensing module, motor driving module, and a CAN bus communication module. After design of the control system, this research carried out the selection of electric motor. This work has designed, manufactured and tested the software and hardware of the control system. During the process of the electric motor selection, BLDC electric motor was selected according to the calculation of torque, power, and principle of electric motor selection. And the corresponding mathematics of BLDC electric motor and control model is also established. The design of hardware mainly includes the selection of the chip of master control casing, the design of the minimal system of DSP2812, the deployment of hardware of interface of host computer, design of parallel unit control of lower computer. And the circuit layout of photoelectric encoder and sensors has also been designed. Software work includes three parts:design of operation interface of host computer, design of the master control casing module, and design of CAN bus communication module procedure. Among them, module of the master control casing includes the control of electric motor, and photoelectric encoder collecting data. At the same time, the control procedure design of the master control casing which would control parallel unit. In order to guarantee the high-speed and coordinated performance, the article has designed a special control strategy.To verify the feasibility of the control system, the study has built a test platform for control system, and carried out experimental test. Through the communication experiments of the master control casing and parallel unit, and the interface experiment of the master control casing and operation interface of host computer, the work has validated the feasibility of real-time scheduling, which was based on the control system of DSP communications. Though the experiment of the collection of photovoltaic encoder and the movement of closed cartridge belt, this work validated the feasibility of the elements of control module. Through the experiments of the communications of CAN buses, the work has guaranteed the security of the communication system. Further more, the results of the functional modules have proven that the design of control system meet the demands of the system design.