Fitness Trainer Clayton Bailey, Drew Carlstedt, Brian Koziel, - - PowerPoint PPT Presentation

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Fitness Trainer Clayton Bailey, Drew Carlstedt, Brian Koziel, - - PowerPoint PPT Presentation

Nov 15, 2023 183 likes •661 views

Fitness Trainer Clayton Bailey, Drew Carlstedt, Brian Koziel, Josaphat Valdivia Needs People are unable to reach their desired level of fitness due to the inaccessibility of personal training or other problems associated with the human element

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Fitness Trainer

Clayton Bailey, Drew Carlstedt, Brian Koziel, Josaphat Valdivia

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Needs

People are unable to reach their desired level of fitness due to the inaccessibility of personal training or other problems associated with the human element of personal training. These problems include a lack

  • f knowledge which makes it difficult to correctly perform an exercise

and raises the risk of personal injury. Motivation can be difficult to maintain when an individual attempts to exercise or train alone, but personal trainers are often prohibitively expensive, and the quality and availability of personal trainers varies, forcing the trainee to accommodate the trainer. There is a need for an inexpensive, portable system that educates users on how to perform exercises safely while maintaining their motivation.

2 Fitness Trainer Clayton Bailey, Drew Carlstedt, Brian Koziel, Josaphat Valdivia

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Requirements

  • 1. Tutorial-based
  • 2. Inexpensive
  • 3. Motivational
  • 4. Portable
  • 5. Reliable
  • 6. Safe

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Specifications

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Marketing Requirements Engineering Requirements Justification

1

  • A. The user will be shown diagrams, animations,
  • r videos which demonstrate the proper

techniques for exercises. The user needs to be presented with enough information to be able to perform the exercise

  • correctly. Users should be able to learn from the

demonstration well enough that the system will not frequently correct him or her; using the system should be a positive experience. 1

  • B. The user will be warned if the sensors detect

that the user's motions significantly mismatch proper technique (i.e., > 10 deviation from expected motion.) The system should gently correct the user's motion and guide the user to proper technique. 4, 5

  • C. Each set of sensors will be able to run for the

duration of a regular workout without being recharged or having batteries replaced. There is a zone associated with physical activity (e.g., runner's high). The device should not take the user out of the zone by requiring fresh batteries. 4, 6

  • D. Wires, if any, will be designed such that they

do not interfere with range of motion, and they will be designed not to be caught on gym equipment. While working out, especially when using gym equipment, having wires criss-crossing the user's body can be hazardous.

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Specifications Continued

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Marketing Requirements Engineering Requirements Justification

2, 5

  • E. The system will use off-the-shelf components

wherever feasible. Off-the-shelf components are generally more cost-effective than custom parts. 5

  • F. All parts will remain motionless relative to the

user's body. The user will be moving around. The parts should not. 5, 6

  • G. Parts will withstand a 2 meter drop test, and

they will withstand the weight of the user. If the user cannot continue doing push-ups, for example, the user may lie on his or her stomach while regaining his or her strength. If the user rolls on his or her side (and thus onto the device strapped to his or her arm), the device should withstand this motion. 3

  • H. The user will be provided with feedback

regarding progress. An exercise routine loses motivational value if the user cannot determine how much progress has been made.

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Concept Selection

  • Optical
  • Magnetic
  • Mechanical
  • Acoustic
  • Level Sensor (old choice)
  • Inertial Sensor (new choice)

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Design: Level 0

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Design: Level 1

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Design: Level 2

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Design: Level 3

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Mounting System

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Mounting System: Risks

  • Robust

○ withstand vigorous exercise while unhindering user ○ needs more testing ○ mitigated by use of reliable exercise bands

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Sensors

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  • L3GD20
  • L3GD20H
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Sensors

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Sensors

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Sensors

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Sensors: Measurement

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Sensors: Risks

  • Accuracy

○ errors in measurement could provide false negatives ○ can be mitigated by periodic calibration

  • Electromagnetic Aberrations

○ metal objects may interfere with measurements ○ more testing required ○ mitigated by possible use of Faraday cage, or accelerometers

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Microcontroller Unit

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Microcontroller Unit: STM32F401

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Microcontroller Unit: STMCube

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Microcontroller Unit

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3.82” x 2.60”

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Microcontroller Unit

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Microcontroller Unit: Power

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Microcontroller Unit: Risks

  • Signal conditioning

○ Mitigated with floating point units in Cortex M4

  • Interface

○ Microcontroller + Gyroscope ○ Microcontroller + Bluetooth ○ Mitigated through the use of breakout boards

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Bluetooth

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Bluetooth

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Bluetooth: Risks

  • Transmission Reliability

○ data corruption could lead to incorrect feedback ○ mitigated by highly reliable component and testing

  • Interface

○ reliably interconnect between MCU and phone ○ mitigated by use of Bluetooth breakout board

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Phone

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Phone

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Phone: Risks

  • Driver implementation

○ may require low-level modifications to Android to fix bugs (significant undertaking) ○ mitigated by Android Open Source Project ■ development/modification of Android Drivers

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User Interface: UML

  • Class Diagram

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User Interface

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Start Screen

  • MainActivity

○ after login/create profile ○ can navigate to all other activities

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User Interface

Exercise Screen

  • List of all exercises

available to UserProfile level

○ selecting one will proceed to demo activity

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User Interface

Exercise Demo Screen

  • DemoActivity

○ Demonstration video, rep count, and form feedback

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User Interface

Routine Screen

  • RoutineActivity

○ list of routines and their component exercises

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User Interface

Edit Routine Screen

  • Displays selected routine

○ lists exercises with weight and sets/reps

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User Interface

Profile Screen

  • ProfileActivity

○ metric for exercise variety, progress summary, level, and experience

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User Interface

Progress Screen

  • Displays

history of routines and dates completed

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Risks Overview

  • Gyroscope Sensor Measurements
  • MCU Functionality
  • Bluetooth Reliability
  • Robust Mounting System
  • Phone Operating System

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Bill of Materials

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Component Cost Our Cost Availability STM32F401 Discovery Board $14.21 $0 (Already owned) L3GD20H Breakout Board $12.50 $0 (Already owned) nRF8001 Breakout Board $19.95 $19.95 About two weeks Energizer NiMH Rechargeable AAA Batteries (4-pack) $8.99 from BestBuy $8.99 In-store pickup Sportline Universal Sport Armband $6.84 from Walmart $6.84 In-store pickup Samsung Galaxy S4 running KitKat $300.00 without contract $0 (Already owned) Total $362.49 $35.78

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Testing

  • Unit Tests

○ Gyroscope, MCU, Bluetooth, Phone

  • Integration Tests

○ Gyroscope → MCU → Bluetooth → Phone ○ Gyroscope → Bluetooth ○ MCU → Phone ○ Gyroscope → Phone ○ Power

  • Acceptance Tests

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Testing: Unit Example

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Test Writer: Brian Koziel Test Name: Microcontroller 3V Test Description: Use a direct voltage

  • f 3V VDD to turn on

the RGB LED Setup: Connect MCU to

  • VDD. 3V is LED ON

Test Input(s) Expected Outputs Status Comments 1 3 V LED ON 2 0 V LED OFF Should be repeated for different input pins

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Testing: Integration Example

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Test Writer: Brian Koziel Test Name: Gyroscope to Phone Integration Test Description: Verify the sensor data reaches the phone Setup: Rotate the gyroscope to ensure that the phone senses small movements Test Input(s) Expected Outputs Status Comments 1 Large Motions Detection 2 Small Motions Detection

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Testing: Acceptance Example

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Test Writer: Brian Koziel Test Name: Use Case - Sensor Durability Description: The sensors should last for the duration of the workout Setup: Use enough batteries and have each component functioning Test Input(s) Expected Outputs Status Comments 1 1 Hour No fail 2 2 Hours No fail

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ASK QUESTIONS

?

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ASK QUESTIONS

?

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