The system was developed for full automatic flight control of unmanned aerial vehicles. It consists of DSP processing module, inertial sensors module, magnetic sensors, absolute and differential pressure sensors (for altitude and airspeed measuring), GPS navigation module.
The built in block of micro-mechanical inertial sensors is able to measure object angular velocities and linear accelerations. Object attitude (Roll, Pitch, Heading) is estimated by internal software.
AP-ST includes flexible control system, which allows user to configure different control loops. Object control is provided by software-based control loops based on PID controllers with self-turning feature. Also AP-ST has PID Self-Turning function, that able to reduce autopilot development time. The system configuration is set by means of special software. It is able to construct control loops by junction basic blocks (inputs, outputs, PID controllers, logical blocks and so on), as well as make a configuration of blocks and flight programming. GPS/INS with aided AHRS backup for graceful degradation in GPS denied environments.
Several control circuits can be configured and stored in internal memory. Control circuits are switched by autopilot system or by the user commands. Special programming technique able to control any measured or calculated parameters and external sensors findings. The external sensors and devices (fuel-depth gauge, ultrasonic altimeters and others) can be connected to AP-ST via RS-485 interface. External sensors expand the set of measuring parameters.
AP-ST includes advanced autopilot system, which allow to program different flight duties such as waypoint following, automatic take-off and landing, and many others. AP-ST can be used to control different type of unmanned aerial vehicles (aircrafts, helicopters and other).
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