User manual

U-See User Manual - General System Introduction

General System Introduction

Airelectronics has developed a complete solution for both rotary and fixed wing UAVs. The

system is composed of:

• U-Pilot

• U-Ground

• U-See

U-Pilot takes care of the vehicle from Take-off to Landing. It is completely adaptable to any

aircraft including fixed wing, multi-copters and helicopters.

U-Pilot is completely capable of following a flight plan with up to 200 points (real time

editable). Once the flight plan is loaded on the U-Pilot it is independent of operator

instructions. In case of a failure in the communications, U-Pilot starts a Landing maneuver

which would safely land the UAV on the Runway Point.

Thanks to its versatility U-Pilot can control any device on board the UAV such as cameras,

parachutes and others. These devices can be real time controlled by a Computer Operator

or by U-Pilot automatically.

U-Pilot has, working in parallel:

• Up to 33 PWM (Pulse-Width Modulation) outputs or even more if necessary,

• 3 ADC inputs (Analogical Digital Converter) to monitor the voltages of three

batteries on the UAV

• 4 serial ports RS232 to communicate with payloads, external magnetometers, etc.

• A radio with up to 100 km

• GPS, dynamic and static pressure sensors, a magnetometer, gyroscopes and

accelerometers.

U-Pilot is built using a two parallel microprocessor approach:

• One processor takes care of the state estimator and controls the UAV using

hardware acceleration to calculate high speed algorithms.

• Another processor takes care of the mission at high level and the communications

with the U-Ground and Payloads management.

• the processors do not waste any time doing low level tasks.

Due to the fact that those two processors are working in parallel and there is dedicated

electronics taking care of all the serial ports, sensors, inputs and outputs the system is

capable of recalculating its position, orientation and closing control loops at the speed of

1000 Hz. This high speed gives the UAV huge navigation accuracy and control.

On the ground segment, we have both U-Ground and U-See.

U-Ground is a control station with the other end of the radio link communicating the U-Pilot

with the U-See software.

U-See software is a user friendly program that runs in any personal computer running

Windows or Linux

1 Range may vary with the frequency band used. Default is 900 MHz but legal limitations in

some countries may change this.

2 MAC OS X can be available upon request, but it is considered a second-tier platform and

some features may be unavailable.

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