UAV Unattended Aerial Vehicle Senior Design Projects Spring 2004

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UAV - Unattended Aerial VehicleSenior Design
ProjectsSpring 2004

• Gary Gear
• Professor Computer Engineering
• 1/25/04

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Small

• Non-combat, surveillance oriented
• Hover craft
• Totally autonomous flight

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Cheap

• Under 15K cost to build
• Hover Craft 7K
• All Electronics 8K
• This is an overall budget each project has to
  fit within these limits
• I will define target costs for each project
• Market selling price 50K to 75K
• Starting in 3 years, delivery 250 units per year
  for 5 years

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User Friendly

• No pilot training required
• Flight dynamics have been abstracted and managed
  by the UAV itself
• Ground operator cannot command a destructive
  flight regime
• Flies like a video game
• Ground Control joy stick can only make
  requests to the UAV. The UAV always filters
  requests to stay within its flight regime

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Object-Oriented Design

• Innovative UAV Network Technology fundamentally
  lower cost
• Software far more robust
• Most UAVs lost in Iraq were due to software
  failures
• Better Fault Tolerance
• Software design and review is a critical part of
  PDR and CDR
• Clean project Black Box specifications
• Modular (OOD) development process
• Some projects are modules common to all or most
  nodes

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Single User can operate

• High level command structure
• Immediate and deferred execution modes
• UAV identifies exceptions that require ground
  intervention
• The joy stick commands (meaning requests) a
  flight attitude. It can never (unless engine at
  idle and parked on the ground) command servo
  movement

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Nodes
PITOT STATIC
IMU
FCC
INS
REC
GROUND PROXIMITY
GPS
CYCLIC
TAIL ROTOR
GROUND
ENGINE
COLLECTIVE
Trans
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Node Types

• Sensor
• Require Network Interface
• Sensors
• Polling Packets
• Servo Control
• Require Network Interface
• Require PWM logic
• Polling Packets

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Sensor Nodes

• Ground Proximity Sensor
• Pitot Static
• IMU

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Servo Nodes

• Node Modules
• Tail Rotor
• 1 servo
• Collective
• 1 servo
• Cyclic
• 2 servos
• Engine Control
• 2 servos
• EGT sensor
• RPM sensor

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Telemetry Support

• 64Kb Full Duplex Digital link
• Transmitter and Receiver Designs
• Channel Selection and Duplexer Design
• NTSC Video Downlink
• Input NTSC video at the UAV
• Recover NTSC video on the ground

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Available Design Projects Node Modules

• Network Interface Logic
• Watch-Dog timer
• Required for all nodes
• Servo PWM
• R/C override mode
• Required for all Servo Nodes

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Available Design Projects Sensor Nodes

• IMU
• 3 axis acceleration
• 3 rotational axis gyros
• Low Pass filtering and A/D conversion
• Microprocessor control
• Ground Proximity
• Ultrasonic transducer that provides accurate
  distance AGL from 0 to 15 feet
• Pitot Static
• Measures barometric pressure and converts to
  altitude
• Measures forward air speed bu measuring wind
  pressureAvailable Design Projects

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RF Links

• RF Duplex Link
• PC interface to transmitter
• Receiver interface to UAV network
• UAV Interface to Transmitter
• Receiver interface to PC
• Frequency selection and duplexer design
• FCC Considerations
• Video Downlink
• NTSC to transmitter
• Receiver to NTSC
• Modulation
• Bandwidth
• Power consumption
• Range
• FCC considerations