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AttoPilot v2.0
The AttoPilot V2.0 turns any R/C aircraft into an UAV. Using GPS (Global Positioning System) it navigates to pre-programmed or real-time set coordinates.
Sophisticated in design and rich in features it is still easy to use for the hobbiest or the demanding professional. With a hyper threaded 32 bit processor running at 160 MIPS AttoPilot brings the functionality of high end autopilots within reach, and scalability for the future.
Dont forget support, AttoPilot International will quickly reply to your enquiries, send us your log files & more often then not we can suggest improvements and modifications to your parameters.
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Specifications and Features:
Small size: ½ ounce control unit 1.5” x 2” x 0.5”, 2 ounce total with GPS and all sensors
7 servos and 5 R/C inputs: 4 flight control + 2 gimbal servos (Pan and Tilt) plus trigger controller. Trigger is unser-configurable as a logic driver or
PWM servo driver. Elevon and V-tail mixing are easy to setup. 100% compatible with all 1-2ms pulse 5V and 3V logic R/C receivers, and the newer
2.4GHz R/C systems
Flight modes (4):
- Autopilot bypass - Pure Remote radio control
- Assisted Radio Control – Autopilot provides 3-axis stabilization while Radio Control establishes pitch and roll targets
- Landing Assist
- Fully Autonomous, including Autonomous takeoff with special settings for this
Stabilization system: 50 Hz attitude control with automatic control gain scheduling based on airspeed. Elevator gain scheduling for optimal altitude
control through turns
Onboard data logging: 50+ parameters logged as a comma-delimited .txt file to removable micro-SD media
Two-way telemetry: Downlink of 3 nmea GPS sentences plus a proprietary $ATTO nmea message for live moving map in 3D plus virtual cockpit, real
time flight plan editing, commanded mission abort, and semi-autonomous flight. User-configurable baud rate from 4800 to 230,400 bps
List of sensors:
- Pressure (2): Pitot airspeed and Barometric altitude
- 3-axis horizon sensing with dynamic bias correction using other sensors as cross reference
- 5Hz GPS with added data smoothing via real time least squares fits
- Power sensing: 0-53 Volts, 0-92 Amps, 0-4900 Watts. Energy consumption tracked to 210 Amp hours (Ah)
- Auxiliary analog input for user defined function (temperature probe, 2nd voltage or current sensor, etc…)
GPS: 5Hz update rate, 3m CEP
Waypoints:
- 100 waypoints with the following parameters:
• Latitude and Longitude to 5th decimal degrees (1.1 meter precision)
• Altitude in 1 meter increments
• Airspeed in 1 km/h increments
- 8 trigger fields that control:
• Loiter at specified waypoints with specific radius, duration, and direction
• Camera triggers for distance and time intervals between waypoints, or only upon arrival at waypoint
• Altitude control method: loiter at waypoint if altitude target not reached yet, or ignore and proceed
- Upload new waypoint lists during flight
- Point and click waypoints during flight from ground control software
Triggers:
- User-defined trigger servo may be either logic driver or PWM servo controller
- Specify active and rest positions, and trigger duration
Barometric altitude: Estimation to 0.3 ft and real world control to +/- 6 ft. Barometric climb rate estimated to 0.3 ft/s
Maximum Limits:
- Maximum Distance from Home Position: 300 km (AttoPilot v1.9 forces return home if this limit is exceeded)
- Turn rate: 60 deg/s
- Pitch and roll rate: 300 deg/s
- Pitch angle: 60 deg
- Roll angle: 60 deg
- Altitude: 30,000 ft barometric and 60,000 ft GPS
- Airspeed: 125 mph via Pitot tube
- Speed: Above 125 mph, GPS speed is used (with Cosine(pitch) correction to obtain plane body-centric forward speed)
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