The Control System Of Vehicle Based On PIC16F877A Single-chip Computer

To weapon system based on land, Raising,adjusting of the perpendicular degree, fixing position and orientation, various equipments of etc are included by the vehicle control system, which is the important part, of which the blast-off technique equipments on ground is composed. At the shoot battlefield, the equip's raising is completed and directional aim of the weapon and other works are carried by this system which cooperates with the equipments of collimation. The fast war power of the weapon system is reflected by the time which the system needs, which is also exposed time of the weapon system, the existent ability of the weapon system is affected directly.To the vehicle control system of some weapon, a kind of the vehicle control system based on PIC single-chip computer is designed to replace control system of some weapon equips based on the electromagnetic relay, the ability of the war situation controled quickly in the war of the future is improved on equip technique.The design thought and the basic work principles of the control system, which regards the PIC16F877A as the core are gived, the hardware electric circuit system is designed, and the software system is drew up.1. The system work principle and the function requests of the vehicle control system are analyzed, the vehicle control system based on the microprocessor is designed, and the CPU unit electric circuit and peripheral interface electric circuit are also designed.2. According to the work process, the system software is designed, which includes the main procedure and interface software; 11 function software is designed, included rising the arm seting down the arm, raising and fall of the launching pad, raising and fall of the stanchion etc. the trapezoid diagram and the procedure flow chart is also gived.3. A kind of new function is expanded. The automatic operation of taking aim and direction is completed, through communicating with the collimation computer, since the time at which to take aim is shortened, and then the accuracy at which to take aim is raised.4. Through design, experiment, improvement, the automatic control of the closed loop linkage is realized, including equip's setting up and setting down, and raising and fall and slew of the launching pad, and adjusting of the perpendicular degree, by the system regarded the microprocessor as the core,to the control of Direct current motor driving electric circuit, travel switch electric circuit, the keyboard and the manifestation electric circuit, USART serial communications and angle sensor electric circuit.This system is operated expediently, and cost performance ratio is high, volume is small, weight is light, system is steady and tried, through being operated not to carry equip imitating and being operated to carry equip practically many times, this system is circulated steadily, the training and the wartime request of equip vehicle can be satisfied with various technique signs.