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Balance Tower (P12005) . Vinay Barde : Program Manager Alexis Reusch : Program Facilitator Jason Marks: Lead EE Alfred Lee: Lead CE. Project Overview. S eated balance to help physical therapist teach wheel chair bound patients to improve the strength of their core muscles.
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Balance Tower(P12005) Vinay Barde : Program Manager Alexis Reusch: Program Facilitator Jason Marks: Lead EE Alfred Lee: Lead CE
Project Overview • Seated balance to help physical therapist teach wheel chair bound patients to improve the strength of their core muscles. • Currently have a tower that is built that has seven large panels in a vertical line that are separated by 3 tri-colored LEDs. • When activated the LED’s will be blue, if the patient touches the target they will turn green and if they miss they will become red. • There are two games in the MCU : Random & Timed Trial • Second tower will be added to the game to add more challenges for the patients. This tower will be a slave to the first tower and help to increase a patients side to side reaching distance.
Functionality of the Present State • LEDs in the first tower are functional • Tested the LEDs • LCD screen • Going to use original LCD in first tower • Games • Time Based and Training game has working code • MCU • User input buttons
What Needs to be Done • Second Tower • Add LED lighting • Populate tower to be a slave to the first tower(without LCD screen and user input buttons) • Add power for devices • Power switch • First Tower • Capacitive touch chip • PCBs • Battery’s • Adding an external sensor to sense patient • Adding an external sensor to sense second tower • Wireless communication • Modify code on MCU
Customer Needs • Provide seated balance training exercises for people of all ages • Needs to have varying levels of difficulty • Engage people of all ages • Have measurable outcomes for people • Easy for the patient and the therapist to use • Minimal repair cost • Can be used with only one attending therapist • Maintain physical structure of both towers • Populate a second tower to add more challenges for the patient • Maintain the training games for the patients • Be able to measure how far apart the towers are • Be able to measure how far away the patient is from the tower
Why Are We Here? Need help on: • Compiling code for the MCU • Selection of wireless communication • Selection on capacitive touch chips • Selection of measuring device
Functional Decomposition Red = New to project Yellow= Improving on project
MCU Programming • PROBLEM Previous team used IAR compiler that is not available now • Long term solution • Spoke with CE professor to get IAR license • Short term Solution • Compile the code using a different compiler, ask other groups what they are using to compile their MSP430’s. • Currently looking into other software • Need help!
Wireless Communication Selection Criteria Programing the Airbee wireless would also require the IAR compiler! • On- Board wireless is the better choice because: Cost effect and easy to program • Tiger Blue tooth device would require another module and a laptop hence more $$
LEDS Selection Criteria • Cost of LEDS was a major factor in selection • Chose Tri-color LED’s to maintain current plastic panels on tower
Capacitive Touch Chip Selection Criteria • Maintain Capacitive Touch Chip • Need chips with better sensitivity • Would like to consolidate to use one 8- input chip rather than to 4-inputs
Sensor Criteria Ultrasonic Ping Sensor Test: - Another MSD team is using the same sensor -Tested their ultrasonic sensor for range and reliability - Outcome was successful, the sensor detected various clothing material - Decided to use this sensor and have it out its measurements to the - MCU and display on the LCD NOTE: Two sensors will be used (One to sense the distance of the patient and another to measure the distance between the towers)
