Check out the Stand BiMEE website here: Stand BiMEE Motorized Pediatric Stander P19008 Background Stand BīMEE is revolutionizing the way children with neuromuscular disorders interact with their environments. The Motorized Pediatric Stander Kit is a kid-friendly, economical alternative to a traditional therapeutic mobility device. The stander kit combines motorized wheels, a control system, bluetooth app, and sensor technology, allowing the device to be safely controlled and independently operated by young children. The user interface is designed for children of all capabilities with accessibility options including capacitive touch button controls and joystick. The kit can be easily assembled and adapted to multiple different brands of standing devices. The team’s main focus was developing an algorithm to manage the large amount of data from the inputs, and make it useful to the user experience. Motors Brushless DC (BLDC) Hub motors from Hoverboards™ used for torque output, price, and relative small package size Motors required more power, more complex speed control solution Algorithm Interprets and prioritizes multiple inputs from user (joystick/buttons) and safety sensors (bump and infrared sensors) Prioritizes inputs in the following order: safety sensors > override control > user inputs Safety Systems (Sensors) Infrared sensors detect and stop the stander from dangerous ledges, curbs, and stairs Bump sensors detect contact with obstacles and stop the stander Box and Bumper Internal box made from 6061 T4 Aluminum sheet 3D printed PLA bumper Ports allow the joystick and buttons to easily be plugged in and interchanged Easy access to charging port Engineering Requirements Maximum speed limit of 6 mph Stander comes to a complete stop within 3 inches of a detected object Can take input control in the form of joystick and buttons Deceleration rate relative to the current operational speed Sensor data is incorporated into the basic function of the device via algorithm Fits into the mechanical envelope of 19 in x 13 in x 5 in Prototype cost less than $1500 Electrical System and Controls Teensy™ Microcontroller 36V Lithium-ion Battery ODrive V3.5 Motor Controller Custom PCB control board design Entire electrical system is housed in aluminum box under the bumper Joystick and capacitive touch buttons Only external wiring comes from joystick/button controllers Tray Assembly Mounted base plate allows tray to be adjusted to any user preference Lego™ plate on top of tray allows for modular controls Clear acrylic plexiglass tray and Lego™ plate allow the user to easily see travel path Check out the Stand BiMEE website here: Assembly Easy at home assembly: Remove front wheels from stander Attach front wheel adapters Attach the box/bumper combo Attach tray Plug in button/joystick controller Engineering: Ahmad Aljohani - Industrial and Systems Engineering Jacqueline Becker - Biomedical Engineering Megan Blakeney - Mechanical Engineering Debere Ezeaka - Electrical Engineering Snehal Ravindra Ingle - Electrical Engineering Nicholas Marsaw - Electrical Engineering Ryan O’Hara - Biomedical Engineering The team would like to thank Professor Steven Day and guide Kenneth Mihalyov for their support and guidance. We would also like to thank CP Rochester for their expertise and encouragement.