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“Helicopter Automation Using Low

Cost Sensors”

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Prepared By: Saadullah Aftab(12063122-069)Usama Jahangir(12063122-079)

Ehtisham Hussain(12063122-091)Research Paper By:

Buskey, Gregg and Roberts, Jonathanand Corke, Peter and Wyeth, Gordon

Course:Dynamic Systems Modeling(Lab)

Instructor:Engr. Ajmal Hussain Shah

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OverviewThis presentation will put a light upon how to control helicopter using low cost sensors. Control technology is nested loops.Speed, height and altitude is measured in house by vision and IP system This aircraft technology is needed to settle down and to respond to the demands of a high level steering at all axis, including address, height, longitudinal and lateral speed.

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Introduction

This presentation gives us the solution to the problem of automation control at low cost modules.

In Commercial aircrafts, there are many problems, challenges and trade-offs, like.

In commercial aircrafts, there is a problem of weight and cost.

Control of vibration is quite difficult.

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Introduction (Cont…)The challenge is to maintain the balance

between size and cost of aircraft.There is problem of fuel and flight capacity.

Flight capacity means the flight duration with a given fuel.

Here we shall discuss the ways to minimize all these challenges.

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XCELL-60 Labelled PartsFollowing is a labelled diagram of the XCELL-

60 Vehicle:

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Flight VehicleXCELL-60 RC helicopter is available in

avionics.It uses petrol as fuel instead of methanol.Due to usage of petrol, its speed is

comparatively low but the advantage is that the vibrations are also low.

Petrol engine gives three times flight duration.

On a single tank, it gives eighteen minutes of flight.

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DimensionsHere are the major specifications of the flight

vehicle:

Diameter of rotor is 1.5 metersWeight is 8 kilogramsLength is 1.8 meters.Flight capacity is 18 Minutes per Litre.

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Avionics & SensorsComputer for data logging and sensing is any

high processing CPU equipped by wireless Ethernet and camera multiplexing.

Stereo vision system is used to control the velocity and height.

The Feedback controlled by RPM sensor connected with feed forward term from collective pitch to improve regulation response that makes it most effective

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Altitude ControlHeading (y), roll (f) and pitch (q) is controlled

by IP modules.Maintenance of aircraft is also conducted

with the control system of aircraft.The second source of variation is wind

magnitude and altering the flapping characteristics of the dynamics.

This variation occurs during a flight.

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Horizontal Velocity Control

Velocity is implemented by two levels nested loop structure.

Velocity errors give roll for roll control modules

Longitudinal velocity errors for pitch control modules.

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Vertical ControlVertical control takes two forms:

One is vertical velocity regulationSecond is height regulation.

Vertical velocity controls the feedback and sends demand to nested loop.

It also controls the height which is available in IP modules.

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ConclusionThis Presentation gives us the brief

knowledge about helicopter automation system with less cost avionics and control systems.

Sensing is conducted by using vision modules.

Cheap sensing makes it quite efficient as compared to expensive projects.

It gives us small size with much more flight duration and low cost.

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Any Questions???

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Thank

You

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