Motorized Pediatric Stander P15045 Sarah Hill Jon Greene Candice Matthews Courtney Getman Chris Wendel Peter Sevich George Day Snug Seat Rabbit Product Guide 2013

Team Introduction Co-Team Lead Industrial and Systems Engineer Sarah Hill Co-Team Lead Mechanical Engineer Jonathon Greene Mechanical Engineer Candice Matthews Electrical Engineer Courtney Getman Electrical Engineer Christopher Wendel Computer Engineer Peter Sevich Computer Engineer George Day 9/30/20141

Agenda Project BackgroundProblem Statement & DeliverablesAction Items from Week 3 reviewCustomer NeedsEngineering RequirementUpdated QFDFunctional DecompositionSystem Level EvolutionConcept Generation TablePugh ChartSystem Level ProposalSystem ArchitectureRisk AssessmentFeasibility AnalysisTest PlanProject Plan 9/30/20142

Project Background Snug Seat Product Guide 2013 Pediatric standers provide upright mobility for children with certain types of disabilities, allowing the user to move and interact in a way that is more natural than a standard wheelchair, while also allowing the user to bear weight on their legs; a critical part of current physical therapy practices. The ultimate end goal of this project is to produce a safe and repeatable motorized attachment for a pre- existing pediatric stander. 9/30/20143

Project Background CP Rochester ‘s Augustin Children’s Center Linda Brown CP Rochester Augustine Children’s Center Physical Therapist Pre-school Children Cerebral Palsy (CP) Primary End User Brain Disorder Motor skill loss Cerebral Palsy 9/30/20144

Project Statement & Deliverables Problem Statement The primary objective of this project is to deliver a working prototype that will allow the client to control the movement of the stander. Additionally, the care provider will be able to safely control the movement of the stander, and override the user input with a remote control. Finally, the project will be packaged and made available for families with a disabled young person. Deliverables Functional prototype Functional wireless remote control for client safety and training DIY kit comprised of componentry, clear assembly instructions, and support information 9/30/20145

Action Items 9/30/20146 VOC and VOE revised Customer Needs and Engineering Requirements do not align CR18 redefined and quantified CR18 “Provide the user with a sense of freedom and independence” suggested to be too liberally worded and hard to define Currently in progress FDA ban Stander availability Available funds Need to define which stander to begin project work on

Customer Needs 9/30/20147

Engineering Requirements 9/30/20148

QFD 9/30/20149

Stander normal use 9/30/201410

Functional Decomposition 9/30/201411

System Level Evolution P13045P14045P /30/201412

Concept Generation Table 9/30/201413

Video of it traveling in a non-straight line 9/30/201414

Straight Line Travel 9/30/201415

Wheel Control Skid Steer Swerve Steering 9/30/201416

Remote Control Communications 9/30/201417

Remote Control Development 9/30/201418

Current State Collision Control 9/30/201419

Collision Detection 9/30/201420

Variable Speed Control 9/30/201421

Terrible Cable Management! 9/30/201422

Cable Management 9/30/201423

Water Proofing 9/30/201424

Very User Friendly! 9/30/201425

User Friendly 9/30/201426

Motorized Attachment Kit 9/30/201427

Pugh Chart 9/30/201428

System Level Proposal 9/30/201429

System Architecture 9/30/201430

Risk Assessment 9/30/201431

Feasibility Analysis 9/30/ How much would a parent be willing to spend on a DIY kit for a motorized stander? Rabbit Stander: $2,070 Motorized Wheelchair: $4,000 Is it feasible to produce a kit for $500? Original BOM cost : $1,600 Reduced BOM cost: $1,400

Feasibility Analysis 9/30/ How much power will the stander consume? 3x :30 minute uses/day Wh- stander.753 Wh- remote Is a kit assembly with 2-6 tools feasible? Previous team: 7 Tools Standardizing screws = 5-6 tools Is it possible to not add more than 20 lbs of weight with the kit? Previous team +40 lbs Neglecting battery, +28 lbs Is a kit assembly with 2-6 tools feasible? Arduino Vs. TI Microcontroller: Latency Is bluetooth communication fast enough?

Debouncing video 9/30/201434

Test Plan 9/30/ Verify using encoder calculations Team benchmarked the speed of a brisk walk to be 3MPH Measured using accelerometer Acceleration and jerk can be measured from a motorized scooter RIT engineering club & non-technical people. Verify meets engineering requirements (<8hrs) Have volunteers assemble kit to observe time and difficulty Compare deviation against previous stander Have stander drive over 20ft line of straight tape to measure deviation Verify using simulated 3-5mm/min rainfall IP Code water protection rating for light beverage spills Receive accurate battery life information using voltmeter Use stander on and off for several hours to test battery power Ensure combination produce desired results Test all control combinations for both client and remote together

Project Plan 9/30/201436

Thank You! 9/30/201437