1. Foot Pressure Monitoring System for a Speed Skater

3.  Improving a system to monitor foot pressure on the soles of speed skaters  Display pressure results alongside skater footage for use as a training tool to club level skaters  Ensure a minimum hindrance to the safety and performance of the speed skater  Skater stats (typical Kingston Striders skater)  Max velocity = 34km/h  Average stride duration = 720ms

4. RequirementTargetReasoning Sensor placement 8 FSRs per footAllows reasonable spread of inputs to identify mass distribution over sole Sampling frequency 40Hz samplingGives average of 29 discrete steps per stride – sufficient to identify mass transitions within stride Wireless fidelityMax range 60m; <3% Tx error Operation inside short track speed skating rink; Tx error limit corresponding to one sample packet lost per stride Compact transmission unit Minimize injury potential Consider Tx unit placement and size such that the skater is at no additional risk in a fall situation Minimally intrusive insole ~1mm thickness Low profile to maximize skater comfort, but must be robust to withstand mechanical strain inside skate Data visualization Max time drift 25ms Display data in contour map and bar graph alongside time matched skater footage.

18.  Digital and analog inputs work very differently, and both can be used for very different things  Much more can be extracted from resultant data then just pressures at given times, speed can be found as well as other things  A better understanding of circuits and how they interact with parts like processors and small IC’s

24. Canakit Supplier Order ItemDescriptionUnit PriceQuantityExtended Price X-Bee KitXbee Wireless Kit89.951 Arduino Uno 29.951 SX00099Real Time Clock Module19.951 SX10088Arduino Project Enclosure12.671 SX00844 Dual Axis Accelerometer Breakout Board - ADXL203039.951 Subtotal192.47 Tax28.29 Freight20.00 Total240.76 TekScan Supplier Order (Force Sensitive Resistor) ZFLEX(A201) 100-8A201 Sensor @ 100 - 8 Pk117.001130.00US Conversion129.207CAD(US*0.9939) Brokerage12.5 GST7.08535 148.79 The Source Order (Prototyping Silicon Board) 2760150IC PC Board - Multi-purpose 4176.991 Taxes0.91 Total7.90 Project Total397.45 Slack2.55

25.  Analysis of the budget provides insight into the limitations due to component cost  FSR Sensors: 33%  Wireless Components: 22%  Peripheral Components: 20 %  Taxes / Shipping: 17%  Microcontroller: 7%

26.  The device made already exists but can cost more than $10 000 dollars. The one made for this project is meant for the club level of skating – many uses, cost effective  Other applications of this project include heath-care and rehabilitation  This project has little to no environmental impact, but changes could be made so that it is more environmentally friendly