Study On Missile-borne Mechanism Movement Control Test System Based On ARM

Movement rule of missile-borne mechanism under the trajectory environment is the important basis and foundation of the fuze design, the development, and the fault analysis and performance evaluation. Due to missile-borne mechanism is small, and that works under the high speed and complex trajectory environment, the missile-borne mechanism movement rule under trajectory environment is difficult to directly obtain through fire experiment at present. And then, through the simulation trajectory environment, reappearing the fuze movement rule under trajectory environment, which becomes one of the long-term pursue goals on engineering research fuze technology.In order to reappear the fuze movement rule through testing the parameter of movement under simulation trajectory environment, the missile-borne memory test system is designed in the thesis. The traditional thought of carbon brush testing is abandoned, the general design solution and the specific hardware and software design work of the system are introduced in the thesis. In the design of hardware circuit, the embedded processor ARM7 catena LPC2214 is the core chip, the power circuit, the reset circuit, the system clock circuit, the signal collecting circuit and the serial port circuit etc are designed. The data real-time sampling, the memory and the processing are completed by the sample system, real-time response is quick, and the anti-jamming ability is strong, the test request is satisfied. Simultaneously the top simulation device control system is improved, the special-purpose PWM circuit (SA8282) of high performance price ratio and Intelligent Power Module (IPM) are adopted, the motor speed is changed based on the rotate difference frequency vector control principle, the effect of control system has been improved, which provides the essential foundation for simulation real trajectory environment.Whereas the characters that low power loss, the small volume, the strong real-time, the high integration etc of the embedded system, the uC/OS-II operating system is transplanted to LPC2214, the design thought of the embedded system is applied to the study and the development of the missile-borne memory test system.Finally, the conclusion is obtained through a lot of experiments, which the time of fuze rotor movement will be shortened depending on the accelerating of the rotate speed, the circles that fuze rotor turned has nothing to do with the rotate speed is clarified, that a important method is offered which can be used in the design, test andfault diagnose of the missile-borne mechanism. Simultaneously, this test methodimprovement feasibility also is proved well.