P19008: Motorized Pediatric Stander

Problem Definition

Table of Contents

Team Vision for Problem Definition Phase



Project Summary

Pediatric standing devices are often prescribed by physical therapists to children with a variety of neuromuscular conditions. The benefit of these devices ranges from musculoskeletal; including increased bone mineral density, the range of motion and spasticity, to esteem benefits that allow a child to interact with their environment and peers while standing. Our project focuses on the addition of motorized wheels and a control system which allows the standing device to become mobile. The increased mobility of the standing device can make the prescribed standing timeless unpleasant, and perhaps even fun for the child.

The previous teams that have worked on this device have created a mobilization kit that can be attached to the stander. This kit includes motorized wheels, a microcontroller, and button controls for the child to interface with. The kit also implements a remote control override to be used by an adult supervisor; either a parent, teacher or therapist. The kit has integrated bump sensors, and an infrared sensor to detect obstacles and potentially dangerous ledges. The data from these sensors have not been utilized in the control system of previous iterations. While the kit is operational, the motion of the stander is sub-optimal. The start and stop motions are jerky and the stander cannot move diagonally. In addition to motion control, the multiple inputs into the control system are currently not used in concert and are not prioritized. Also, the current kit does not have the desired aesthetics necessary for marketing to a wide range of customers.

This year our team will incorporate the inputs from the multiple sensors and controls into the system. The project will focus on developing an algorithm to manage a large amount of data from the inputs and make it useful to the user experience. The device also needs thorough testing and validation because it will be used to support the full body weight of a child; safety is of the utmost importance. Our team will develop a rigorous testing procedure and implement these safety tests to verify device operation and safety. The project should deliver a device that has passed our designed safety testing and is able to process and react to all data inputs appropriately. In addition, the kit will be delivered in a form that is both marketable and fun for kids.

Use Cases

Scenarios: Assembly: The parent or caregiver must assemble the kit to the stander.


Home Use: The pediatric user is prescribed standing time at home, and would like to move around the house while standing.

Home Use

Home Use

School Use: The pediatric user is prescribed standing time during school hours, and the user would like use the stander to interact with other students.

School Use

School Use

Project Goals and Key Deliverables



Customer Requirements (Needs)

Customer Requirements

Customer Requirements

The live document can be found here: here

Engineering Requirements (Metrics & Specifications)

Engineering Requirements

Engineering Requirements

The live document can be found here


House of Quality

The live document can be found here: here

Design Review Materials

Include links to: Design Review 1: The live document can be found here: here

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Plans for next phase

Project Plan

Individual 3-week Plan

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