BME 4901 Final Presentation By: Hillary Doucette, Stephen Kustra & Sarmad Ahmad National Science...
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BME 4901 Final Presentation By: Hillary Doucette, Stephen Kustra & Sarmad Ahmad National Science Foundation Katrina Toce [email protected] (860) 621-8616
BME 4901 Final Presentation By: Hillary Doucette, Stephen
Kustra & Sarmad Ahmad National Science Foundation Katrina Toce
[email protected] (860) 621-8616
Slide 2
Overview ARC Slide Platform ARC Slide Car ARC Slide Ramp
Slide 3
The Client Client: Joey Toce Six years old. 42 Tall. 35 pounds.
Condition: Cerebral Palsy Interests: Outdoor activities Car seat
fitted for his body. Needs multiple harnesses to help maintain
upright posture. Joey testing the car and slide.
Slide 4
Introduction: The Project Purpose: To design and build a
coaster slide that Joey can safely enjoy outdoors. Constraints:
Joey has limited motor control. Back strain for the
parents/operators. The car must be able to retract back to the top
automatically.
Slide 5
Related Products Step 2 Extreme Coaster US Patent # 5,505,663:
Self- operable transfer system. US patent #4,865,312: Recreational
device for physically disabled children.
Slide 6
Features Winch motor with free spooling setting Lift motor and
actuator Tower light indicator Wireless remote control
Photoelectric sensor Track on platform 10ft long ramp Emergency
power switch Lift and Release Mechanisms Ramp
Slide 7
Features cont. Automated winch hook release. Battery powered
(12V DC) Car with three separate harnesses. Winch Hook Release Car
Harnesses
Slide 8
The Electronics Motors wirelessly controlled using a 4 channel
RF transmitter and receiver. 40 pin PIC (16F874A) is used as the
controlling unit. Microcontroller has 6 inputs : 4 inputs from the
wireless receiver 1 input from the photoelectric sensor 1 input
from the position switch 4 Button Remote Control Electrical systems
printed circuit board
Slide 9
The Electronics Motors are powered by a 12V 30A-hr battery. A
12V-24V DC step-up converter is used to power the 24V LED light
using a 12V signal from the DC battery. Transistor switches are
used to amplify or stabilize the output signals. Battery Box and
plug Red, Yellow, Green LED tower light. Control box with motor
drivers and wireless receiver.
Slide 10
The Photoelectric Sensor Powered by 12V DC power supply. Sends
signal to winch motor to stop when the infrared light beam is
blocked by car wheel. Prevents car from being pulled back too
far.
Slide 11
The Winch Motor Purchased from TRAC horse power, 12V DC supply
voltage. Free spooling ability. When the photoelectric sensor is
not triggered, winch can be powered in forward or reverse. When the
sensor is triggered, winch remains off. Winch and spring hook
attachment
Slide 12
The Lift Motor horse power. 12V DC input. Controlled by the
wireless remote. Motor will turn on when the photoelectric sensor
is triggered. It will turn off once the limit switch is triggered.
Lift motor attached to actuator to lift rear platform track. Lift
motor mounted on platform underside. Lift Mechanism
Slide 13
The Car Modified frame of old gait trainer. Carrie Seat
obtained from NEAT marketplace. Custom sewn navy vinyl seat cover.
Nylon harnesses included with the seat. Foot harnesses with Velcro
straps. Side panels made of polyurethane and covered with Plastic
spray paint. 7 inch wheel diameter with plastic hub and outer
rubber tread. Padded arm rests covered with nylon.
Slide 14
The Platform 35inches high. Frame made of pressure treated
lumber and decking made of composite wood. The front of the
platform track is hinged with 2 10 T-hinges. Side rails to prevent
tipping off platform.
Slide 15
The Track 10ft long. Made of pressure treated wood. Aluminum
and wood flares at the end to help guide wheels while retraction.
Able to detach from platform by removing pins. Steel plate at
platform interface to attach to platform.
Slide 16
Budget $1,385.00 Budget Initially: $1,385.00 Second Budget:
$1,685.00 New motor controllers, PCB, wireless module. Total
Expenditures: $1760.00 Remaining : -$74.32 (I will do this in the
morning)
Slide 17
Acknowledgements Dr. John Enderle UCONN BME Director James
Paolino UCONN BME Graduate Student The Toce Family National Science
Foundation Serge Doyon, Pete Glaude, Rich Bonazza Uconn Machine
Shop Jennifer Desrosiers, Kerrie Wenzler, Lisa Ephriam Eric Leknes
Ray Kustra Mike Doucette