P13045 Mobile Pediatric Stander Heather Beam Thomas Bean Megan - - PowerPoint PPT Presentation

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P13045 Mobile Pediatric Stander Heather Beam Thomas Bean Megan - - PowerPoint PPT Presentation

Nov 12, 2022 551 likes •810 views

P13045 Mobile Pediatric Stander Heather Beam Thomas Bean Megan Chapman Steven Geiger Kimberly Keating Final Review Agenda Topic Time Project Summary 10:00 am Customer Needs 10:02 am Engineering Specifications 10:04 am Work Breakdown

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Heather Beam Thomas Bean Megan Chapman Steven Geiger Kimberly Keating

P13045 Mobile Pediatric Stander

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Final Review Agenda

Topic Time Project Summary 10:00 am Customer Needs 10:02 am Engineering Specifications 10:04 am Work Breakdown Structure 10:05 am System Architecture 10:07 am Design Summaries 10:09 am Testing 10:20 am Weight Tracking 10:22 am BOM and Budget 10:23 Recommendations 10:24 Questions/Comments 10:25 am

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  • Motorize a Pediatric Stander to increase independence and

mobility for user

– Add ≤ 20 lbs. – Incorporate Training Mode – SAFETY – Versatile Controls

Project Description

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Updated Customer Needs

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Updated Engineering Specifications

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Work Breakdown Structure

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System Architecture

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  • Utilization of slot system on
  • riginal frame
  • Hold 20+ pounds
  • Adjustable up/down, left/right
  • Constructed out of aluminum

bars and 80/20

Design Summary – Tray Mount

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Design Summary – Remote Control

  • Used by therapist to control the

stander

  • Two Modes:
  • Override Mode
  • Assistive Mode
  • Sends control signal to the

stander using a wired serial connection

  • Uses TI Stellaris Launchpad

microcontroller

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Design Summary – Battery Mount

  • Used the existing frame to attach
  • Bottom piece was cut and bent up
  • Top pieces were cut and had a threaded rod welded in
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Design Summary – Board Housing

  • Holds the LM4F232 evaluation

board and voltage regulator

  • Attaches to the bottom of the

tray

  • Ports for buttons are set in the

wall of the housing

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  • Same board as stander

– Ensure compatibility

  • Wired Serial Connection

– Matches the module on the Stander board

  • Handheld remote control

Trainer Mode

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Tray Layout 1

  • Press to go
  • Must keep pressure to

continue movement

  • Tray: 13.75” x 8.75”
  • Button: 2” x 2”
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Required Tests – Button Scenario Mode 1

Buttons Scenario Desired Outcome - Software Interpretation Desired Outcome - Stander Interpretation Actual Outcome - Stander Movement Comments

  • Left

Press & Hold Direction interpreted as left Stander moves left Stander moves left

  • Right Press & Hold Direction interpreted as right

Stander moves right Stander moves right

  • Up

Press & Hold Direction interpreted as forward Stander moves forward Stander moves forward

  • Down Press & Hold Direction interpreted as backward

Stander moves backwards Stander moves backwards Left Right Press & Hold Direction = none No movement No movement Left Up Press & Hold Direction interpreted as forward/left Stander moves forward to the left Stander moves forward to the left Left Down Press & Hold Direction interpreted as backward/left Stander moves backwards to the left Stander moves backwards to the left Right Up Press & Hold Direction interpreted as forward/right Stander moves forward to the right Stander moves forward to the right Right Down Press & Hold Direction interpreted as backward/right Stander moves backwards to the right Stander moves backwards to the right Up Down Press & Hold Direction = none No movement No movement

  • Left

Press Direction interpreted as left Stander turns left Stander turns left

  • Right Press

Direction interpreted as right Stander turns right Stander turns right

  • Up

Press Direction interpreted as forward Stander inches forward Stander inches forward

  • Down Press

Direction interpreted as backward Stander inches backwards Stander inches backwards Left Right Press Direction = none No movement No movement Left Up Press Direction interpreted as forward/left Stander turns forward to the left Stander turns forward to the left Left Down Press Direction interpreted as backward/left Stander turns backwards to the left Stander turns backwards to the left Right Up Press Direction interpreted as forward/right Stander turns forward to the right Stander turns forward to the right Right Down Press Direction interpreted as backward/right Stander turns backwards to the right Stander turns backwards to the right Up Down Press Direction = none No movement No movement

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  • Press to go until

another button is pressed

–Stop button to stop

  • Tray: 13.75” x 8.75”
  • Button: 2” x 2”

Tray Layout 2

STOP

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Required Tests – Button Scenario Mode 2

Buttons Scenario Desired Outcome - Software Interpretation Desired Outcome - Stander Interpretation Actual Outcome - Stander Movement Comments

  • Left

Press Direction interpreted as left Stander moves left Stander moves left circle

  • Right Press

Direction interpreted as right Stander moves right Stander moves right circle

  • Up

Press Direction interpreted as forward Stander moves forward Stander moves forward circle

  • Down Press

Direction interpreted as backward Stander moves backwards Stander moves backwards circle

  • Stop Press

Direction = none No movement No movement Left Right Press Direction = none No movement No movement Left Up Press Direction interpreted as forward/left Stander moves forward to the left Stander moves forward to the left Left Down Press Direction interpreted as backward/left Stander moves backwards to the left Stander moves backwards to the left Right Up Press Direction interpreted as forward/right Stander moves forward to the right Stander moves forward to the right Right Down Press Direction interpreted as backward/right Stander moves backwards to the right Stander moves backwards to the right Up Down Press Direction = none No movement No movement Stop Left Press Direction = none Stander stops Stander stops Stop Right Press Direction = none Stander Stops Stander Stops Stop Up Press Direction = none Stander Stops Stander Stops Stop Down Press Direction = none Stander Stops Stander Stops

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Weight Tracking

Component Quantity Weight (lb) Total Weight (lb) Battery 1 7.7 lb 7.7 lb Battery Mount 1 1 lb 1 lb Motorized Wheels 2 3.2 lb 6.4 lb Motor Controllers 2 0.16 lb 0.32 lb Sensor Bumper Mounts 2 0.5 lb 1 lb Lego Tray 1 0.2 lb 0.2 lb Tray Mount 1 3 lb 3 lb Total 19.62 lbs

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Bill of Materials - 1

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Bill of Materials - 2

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Bill of Materials - 3

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Bill of Materials - 4

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Bill of Materials - 5

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  • Budget: $6,000
  • Current Total: $5,622.86

– Includes shipping costs

  • Remaining Budget: $377.14

The Bottom Line

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Recommendations

  • Encompass wiring within the stander structure
  • Reduce the size of the trainer remote
  • Add ultrasonic sensors to prevent collisions while allowing stander

movement

  • Incorporate Bluetooth to the Remote Control System
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