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Kite Camera Group Members: Marc Bland Mark Burchill Walter Perry Robert Popovitch Andrew Theriault

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Kite Camera. Group Members: Marc Bland Mark Burchill Walter Perry Robert Popovitch Andrew Theriault. Presentation Outline. Existing Technology Design Objectives and Goals Components for Design Cost Analysis Schedule Conclusions Questions. Existing Technology. - PowerPoint PPT Presentation

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Kite Camera

Group Members:Marc Bland

Mark BurchillWalter Perry

Robert PopovitchAndrew Theriault

Presentation Outline

• Existing Technology

• Design Objectives and Goals

• Components for Design

• Cost Analysis

• Schedule

• Conclusions

• Questions

Existing Technology

• Kite Aerial Photography (KAP)

– Began with Hobbyist– Still-Photography– Simple suspension

systems

Design Objectives and Goals

• Design a controllable aerial photography system to accurately capture pictures and video– construct suspension and cradle system – maximize range of motion with

motors/electronics

• Live streaming video

Components for Design

• Kite

• Camera Cradle

• Cradle Suspension

• Camera

• Video Transmission

• Pan & Tilt Controls

Kites• Winged-Box

– Stable in heavy winds due to it’s boxed frame

– Flies in light winds due to its’ winged design

• Rokkaku– Solidly built– Adjustable tensioning– Winds ranging from 4-8

mph

Kite Selection

• Parafoil– Steady and easy to

control– Inexpensive– Easily assembled– Excellent lift– Winds ranging from

8-25 mph– 17 square feet

Cradle System

• Cradle design crucial for maximum camera control

• Goal to obtain pan and tilt motions

• Critical Design Characteristics– Center of Gravity– Range of Motion– Support Type

Cradle Design Types

• LL Design– Most simple design– Lightweight– Supports only

smaller cameras– Smaller range of

motion– Tilting/Rotating

motion

Cradle Design Types

• UU Design– Little more

supportive– Capable of heavier

weights– Similar range of

motion– Tilting/Rotating

motion

Cradle Design Types

• UU Hover Variation Design– Most complex– Largest range of

motion– Capable of horizontal

and vertical rotations as well as tilting

Cradle System Designs

Suspension Types

Pendulum Picavet

Pendulum

• Made of two rigid tubes

• Hard to control camera’s movements

• Uncontrollable swinging leads to inaccurate and blurry pictures

Picavet

• Contains a self-leveling platform that resists rotation

• Suspension line attached various ways• Small cross resists rotation better than a large

one

Attaching the Picavet Cross to Line

• Ball bearing

• Pulleys

• Eye holes

•Cord locks

Attaching the Suspension to the Kite

• Prussik Knot

• Line Tree

• Brooxes Hangup

Threading the Line

Threading SequenceA1 - 1 - B1 - R - 4 - A2 - R - 2 - B2 - 3 - A1.

Cameras

• Snap Shot– Takes still images– Blind shots– Smaller

• Video– Allows for live

streaming video– More expensive

Digital Video Cameras

• JVC GR-D70U– 16x optical zoom– Sports mode– Li ion battery

• Mustek DV 5500– Lightweight– Cost effective ($100)– Li ion battery

Video Transmission

• Types

– Fiber Optic Cable

– Wireless RF Transmitter

– S-Video Cable

Fiber Optic Transmitter

• Includes a transmitter and receiver• Power supply needed for transmitter

Wireless RF Transmitter

• Includes a transmitter and receiver

• No mess with wires• Quality may not be

great

Pan and Tilt Controls

• Controlled by PIC (Peripheral Interface Controller)– PIC16F873

Pan and Tilt Controls

• PIC will be wired up kite line to power 180O and 360O servo and/or stepper motor attached to the camera cradle

Cost AnalysisMaterials Quantity Cost ($)Kite 1 200Camera 1 250Camera cradle 1 30Cradle suspension 1 30Servo (one 180deg, one 360deg rotation) 2 100#12 THHN Cu wire (stranded) 200 ft. 20Fiber optic cable transmission 1 200Power supply 1 50Electronic components 20 30

Total: 910

Schedule

Conclusion

• Integrated systems of Kite Camera• Funding is a possible problem• Testing and experimentation is vital

Questions?