1. Electro-Pneumatic Pinball ELM 4702 ELM Project SPRING 2003

2. Will Fisher Problem Develop an academic trainer for programming electro-pneumatic control systems : Develop an academic trainer for programming electro-pneumatic control systems : –Capable of interfacing with a microcontroller trainer or a PLC. –Provide an interactive demonstration for functions. –Raise the students' interest in the course. –Provide control labs that build from push button interface to closed loop position control.

3. Will Fisher Solution A shot on goal Style pinball machine. –Boxed in playing field. –Pneumatic actuators. –Universal PLC, micro controller communication bus. –Goalie blocking through ball detection.

4. Will Fisher System Overview PC Solenoids Switch Air PLC68HC11 Signal Converter Electro-pneumatic Pinball uC Valves Camera

5. Will Fisher Mechanical Overview n Pneumatic actuators for flippers, goalie slide and ball launch. n In box playing field.

6. Will Fisher Pinball Body n Ramped playing field. n Viewing window in playing field.

7. Will Fisher Flipper Set Up n Direct action from cylinder to flipper. n Spring tension return on flipper.

8. Will Fisher Goalie Set UP n Liner air actuator for motion. n Pulsed air used for position control.

9. Will Fisher Ball Launch Set Up n Liner air actuator with slight cupped ball holder. n Full on action for ball launch.

10. Will Fisher Electrical Overview Power Converter 24 12 5 PC Solenoids PLC68HC11 Signal Converter uC 120 Switch Camera

11. Will Fisher Power Overview Power Converter 24 12 5 PC Solenoids PLC68HC11 Signal Converter uC 120 VAC Switch Camera

12. Will Fisher Signal Overview Power Supply DC 24 12 5 PC Solenoids PLC68HC11 Signal Converter uC 120 VAC Switch Camera

13. Will Fisher Signal Converter Overview Signal Converter 24V DC Power 5V Signals 24V Signals From HC11 To Solenoids 24V Signals From PLC

14. Will Fisher Signal Converter Schematic

15. Will Fisher Signal Converter Detail

16. Will Fisher Software Overview Signals from sensors Adjust goalie to block ball Interrupt form switch Actuate flipper Yes No

17. Will Fisher Goalie Blocking Software Ball position data Goalie to far right Goalie to far left Move goalie right Move goalie left No Yes

18. Will Fisher Ball Detection Software Video data Ball crossed first line Ball crossed second line Output position Output position No Yes

19. Will Fisher Ball Detection Code

20. Will Fisher Budget

21. Schedule

22. Pneumatic connection n Typical cylinder to valve connection. n Regulator includes air, oil/water separator. AIRRegulator