2. Joseph Ratliff EE Software Research PCB Design Obstacle Detection Motion Detection Ryan Crownover EE Coding Logic Motion System Software Design Website Tyler Ross EE Hardware Design Motion Detection Power System Analysis Team Advisor Dr. Raymond Winton Lee Jones EE Hardware Design PCB Design Power System Design Dr. Randy Follett Class Professor

3. Overview Market Requirements Technical Specification Functional Decomposition Work Schedule Design Implementation Cost Analysis Testing Issues Summary Q&A

4. 2 Semester Product Development Involves the use of technical skills obtained through the Electrical and Computer Engineering Undergraduate Program

5. Currently, cooler transportation is time consuming, cumbersome, and exhausting, and the source of these difficulties has gone unchanged for years: human involvement.

6. The Kooler Kart will reduce the need for human involvement in a cooler transportation process. Hands free Designed to be user friendly.

7. The Kooler Kart must satisfy the following requirements: Hold the weight of a 25qt cooler (~60lbs loaded) Travel at a max speed of 6 mph

8. The Kooler Kart must be simple enough that someone can operate and charge it, regardless of their knowledge of motion technology. Battery Charge Display Motor Disengage Option

10. Beacon Drive System Microcontroller Object Sensors Beacon Sensors User Kooler Kart Power Power Supply

12. TaskSept.Oct.Nov.Jan.Feb.Mar.Apr. Project Plan Hardware Roles Drive System / Testing Beacon / Testing Object Detection / Testing Packaging Full Integration

13. Kooler Kart Design Subsystems Packaging

14. Kooler Kart Object Sensors Receivers Beacon

16. Uses Ultrasonic Rangefinder and an RF Link simultaneously Ultrasonic Pulses to receivers to determine the angle of the user from the kart RF Link Pulses to the RF receiver calculating the distance the user is from the kart

17. Array of 6 Ultrasonic Rangefinders Fires consecutively detecting object up to 1m away

18. Beacon angle and distance found Kooler Kart will move: Forward, Reverse, Port, and Starboard Object detected Kooler Kart will avoid object while searching for beacon signal

19. Main Board PCB Kooler Kart Prototype

20. Main Board PCBPCB Schematic

22. Parts ListsNumberCostProduction Cost/One Microprocessor1$70$50 HC-SR047$21 Servos1Donation$120 PCB2$25$80 RF (Rx,Tx)2$20$5 40KHz Receiver Circuit2$15 Cart Frame1Donation$40 Total16$151$331

23. Beacon Detection Object Detection Best/Worst Case Scenario

24. Beacon Signal Receivers [4] Max Variance: 5.83 ⁰ Min Variance: 0.67 ⁰ Field of View: +/- 60 ⁰

25. Beacon Sensors Distance: 2m Distance Expected Avg % Error 100 cm1.8% 200 cm4.9% 300 cm10%

26. Beacon Sensors Object Object Case – 50 cm Distance % Error 1 14.8% 2 3.2% 3 5.4% 4 6.2% 5 4.9% 6 11.2 %

27. Kooler Kart User Collision Object Travel Direction

28. Kooler Kart User Collision Object Travel Direction

29. Kooler Kart User Collision Object Travel Direction

30. Kooler Kart Travel Direction User Collision Object

31. Kooler Kart Travel Direction User Collision Object Out of Viewing Angle

33. Receiver Noise Beacon Detection Method Object Detection Array

34. I: Motivation Pick a project that will keep your interest II: Time Management Allow yourself time for errors III: Research Always do your research before ordering parts

35. PCB Design Motion Control Systems Ultrasonic and RF communication

36. Beacon Detection System Teamwork and Communication

37. [1] Eric. Infrared vs. Ultrasonic - What you should know. 2008. Online: http://societyofrobots.com/member_tutorials/node/71 [2] “Arduino Mega,” in Arduino. 2013 Oct. 2. Available: http://arduino.cc/en/Main/ArduinoBoardMega [3] “Ultrasonic Module HC-SR04,” in Hobby King. 2013 Oct. 2. Available: http://www.hobbyking.com/hobbyking/store/__31136__ultrasoni c_module_hc_sr04_arduino.html http://www.hobbyking.com/hobbyking/store/__31136__ultrasoni c_module_hc_sr04_arduino.html [4] Hashizume, H.; Kaneko, A.; Sugano, Y.; Yatani, K.; Sugimoto, M., "Fast and Accurate Positioning Technique Using Ultrasonic Phase Accordance Method," TENCON 2005 2005 IEEE Region 10, vol., no., pp.1,6, 21-24 Nov. 2005 doi: 10.1109/TENCON.2005.301009