1 / 29

Dylan Wagner and Akash Duseja TA : Dennis Yuan 05/05/2014

Offside Detection System in Soccer Group #42. Dylan Wagner and Akash Duseja TA : Dennis Yuan 05/05/2014. Overview. Tracks the real time position of the players on the field Tracks the real time position of the soccer ball on the field Determines when the ball is kicked

quade
Download Presentation

Dylan Wagner and Akash Duseja TA : Dennis Yuan 05/05/2014

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Offside Detection System in Soccer Group #42 Dylan Wagner and Akash Duseja TA : Dennis Yuan 05/05/2014

  2. Overview • Tracks the real time position of the players on the field • Tracks the real time position of the soccer ball on the field • Determines when the ball is kicked • Algorithm to decide whether an offside foul has occurred • Indicates offside foul to the assistant referee

  3. Player Circuit Pictures Back Side Front Side (inside casing)

  4. Soccer Ball Circuit Picture

  5. Switching Voltage Regulator [2] Input Voltage = 9 V Output Voltage = 5 V L = 100 µH RCL = 2.5 Ω CT = 60 pF R1 = 3.8 kΩ CO = 6.5 µF • Step-Down Voltage from 9V battery to 5V • High Efficiency (60% or greater) • Peak Switching Current < 500mA "TL497A (ACTIVE) 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator." Converter (Integrated Switch). N.p., n.d. Web. 4 May 2014.

  6. 3.3V Linear Voltage Regulator • Step-Down Voltage from 5V to 3.3V with high accuracy • Only needs capacitance for stability • Ensured 100mA Output Current

  7. 3.3 V Linear Voltage Regulator Graph[1] Output Voltage vs. Input Voltage [1] "LP2950-N (ACTIVE) Series of Adjustable Micropower Voltage Regulators." Linear Regulator (LDO). N.p., n.d. Web. 4 May 2014.

  8. Power Supply Requirements, Verification and Test Results

  9. XBee PRO S1 • Transmit and receive data wirelessly • Built-in Antenna • Line of Sight range: 1500m • Max Data rate: 250kbps • Input voltage: 3.3 volts

  10. Xbee Requirements, Verification and Test Results

  11. Arduino Pro Mini • Collect data from GPS and parse it • Perform calculations • Receive accelerometer data in case of ball • Send data to Xbee transmitter • Input Voltage: 3.3 Volts

  12. Arduino Requirements, Verification and Test Results

  13. Accelerometer • Embedded inside the soccer ball • Used to detect a pass • Send acceleration data to the microcontroller • Input voltage: 3.3 volts • Operating frequency: 50 Hz

  14. Accelerometer Requirements, Verification and Test Results

  15. GPS module • Used to provide raw data to the microcontroller • Built-in Antenna • Fast update rate (1Hz to 10Hz) • Position Accuracy: 1.8 meters • Input voltage: 5 volts

  16. GPS Requirements, Verification and Test Results

  17. Why use GPS ?

  18. Formulas Used to Calculate Distance From End Line Haversine Formula a = sin² () + cos (φ1) * cos (φ2) * sin² ()c = 2 * atan2(√a, √(1−a)) Distance = R*c(φ = latitude, λ = longitude, R = earth’s radius [mean radius = 6,371km]) Heron’s Formula ( a,b,c = sides of triangle, ) Area of a Right Triangle Formula A =*b*h (b = base, h = height)

  19. Steps to Calculate Distance from End Line Use Haversine Formula to calculate S1, S2 and S3 2) Use Heron’s Formula to calculate area of the triangle 3) Use area to calculate H (distance from the end line) S2 S1 H S3

  20. Software Flowchart – Player/Soccer Ball

  21. Software Flowchart – External System

  22. Successes and Challenges • Parsing received data • Wireless receiver handling multiple data packets • Power supply efficiency • GPS module accuracy • Accelerometer differentiating between a pass and a dribble

  23. Future Work • Mapping the position of players and ball on a computer screen • Logging data when an offside is detected • Proper embedding of circuit in the soccer ball • Embedding of player circuit in shin guards

  24. SWOT Analysis Strengths • Easy to use • Cost Effective • Circuit endures rough conditions Weaknesses • Additional Weight • Player comfort Threats • Hawk Eye System • GoalRefsystem Opportunities • False Start/Offside detection in American Football • Player Tracking System • Real time tracking of runners/cyclists

  25. Credits • Professor Carney • Professor Singer • Dennis Yuan • ECE Service Shop (Mark, Wally) • ECE Machine Shop

  26. Questions ? THANK YOU 

More Related