Inflating Padding Antifracture GirdleET 493-01 Senior Project Design Fall 2014

Stephen T. Calvert

Advisor

Dr. Patrick McDowell

Trochanteric(hip) PaddingMust be capable of covering • Shoulders.• Sides.most importantly • Hips

A shirt/coat would best cover all areas

Mostly handy-work, this has been contracted out.

Cartridge* & TriggerFor the purpose of inflating the Airbags in the garment. This device must maintain a reservoir of pressurized gas. This would either be filled every so often, or provided with cartridges.

One design employs a 12g CO2 cartridge

Alternate design creates reservoir of air.

Air reservoirComponents

Air tank(PVC pipe)

Valves

Servos

Fall DetectorEnsure the safety of device wearer by deploying airbag when fall conditions are met.

Fall detection components

Arduino microcontroller.

• LCD keypad shield

• Accelerometer

• Ultrasonic Rangefinder

• Wires-etc.

Construction of fall detecting mechanism• First sewing the sensors onto strips of

fabric• Pinning Sensors onto vest• One range finder under front left pocket• Second Range finder on back with

accelerometer and microcontroller• Tools for work

Tasks Obtain appropriate sensors(accelerometers, gyros, etc.)(done)

Build experimental setup for fall detector.(done)

Test fall detector, modify as necessary(progress)

Determine appropriate trigger mechanism(purchase if modifiable version is available)(progress)

Test and modify

Build girdle with CO2 bladders(accounted for)

Assemble all parts

Test prototype

Make modifications as necessary

Write up on device

Schedule

October November December January February March April MaySelect remaining components

Build experimental setup

Assemble the fall detector

Write fall detection code

Add trigger to device

Add Girdle

Final modifications

Current time

Questions??