Abstract
This paper describes the procedure for the realization of servo systems for the guided missiles. The realized servo system consists of four servo units for driving the missile wings. The servo units are independent of the each other and they are controlled by a 32-bit microcontroller STM32F407. Contactless high resolution magnetic encoders are used as the position sensors of the missile wings. The communication between the microcontroller and the magnetic encoders is realized via the serial port using the SPI protocol. DC motors are used as actuators. The actuator's energy converters are realized in a Hbridge configuration. These converters are controlled by the corresponding pulse width modulation (PWM) signal from the microcontroller. This servo system with four independents servo units makes possible to rotate the missile wings according to the guidance algorithm and at the same time according to the algorithm for the missile rolling control. The steering structures of the servo units are based on the application of the PI controllers.
Highlights
IN control engineering a servomechanism, sometimes shortened to servo, is an automatic device that uses errorsensing negative feedback to correct the action of a mechanism
This paper presents a description of the servo system synthesis using the following available elements: microcontroller, position sensor, DC motor, reducer and energy converter
The complete servo system is packaged in one body, which is made up of a rocket flight control module (FCM)
Summary
IN control engineering a servomechanism, sometimes shortened to servo, is an automatic device that uses errorsensing negative feedback to correct the action of a mechanism. On the low end are inexpensive radio control servos (RC servos) used in radiocontrolled models which use a free-running motor and a simple potentiometer position sensor with an embedded controller. Stepper motors have inherent angular positioning, owing to their construction, and this is generally used in an open-loop manner without feedback They are generally used for medium-precision applications. RC servos are used to provide actuation for various mechanical systems such as the steering of a car, the control surfaces on a plane, or the rudder of a boat [1] Due to their affordability, reliability, and simplicity of control by microprocessors, they are often used in small-scale robotics applications. MIŠLJEN,P., PAVIĆ,M.: REALIZATION OF THE MISSILE SERVO SYSTEM BASED ON THE APPLICATION OF MICROCONTROLLER
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