Objective To create a highly modular base laser tag system. A feature rich system Expands on the functionality of the current systems
Systems Diagram CPU Memory RF Link GPS Optical Transmitter Optical Receiver Primary User I/O Expandable User I/O (Optional)
GPS Global Positioning System Standalone chip that streams the chips location. To Be used for: Projectile Calculations ○ Ballistics ○ Blast Damage Player Tracking Interactive Game Play Features: ○ Positional Respawn ○ Capture/Reach Location ○ Hunt Player (Radar-ish)
GPS Block Main board DSP/Micro GPS Chip Antenna
RF Link Radio Frequency Communication. To Be Used For: Upload Game Rules Real Time Scoring Player Tracking ○ For display to observers ○ For Game Play Options (hunt player, captured flag location, ect.)
RF Block Main board DSP/Micro Transceiver Antenna
Optical Transmitter Transmit point to point line of sight data. Used For: Shooting target Transferring upgrades (health, ammo) Other optical communications ○ Set game options in Compatibility modes.
Optical Receiver Receive Optically transmitted signals. Used For: Receiving shots from enemies. Receiving point to point upgrades (health, ammo, ect.) Other optical communications ○ Set game options in Compatibility modes.
Optical Block Receivers (40KHz and 56KHz) Main Board Optical Transmitter (40KHz and 56KHz)
Memory Provide storage for: Software ○ Compatibility modes Miles, Fragtag, WOW, LTTO ○ Game types Capture the Location Free For All Player Hunting ect. Game Data Player Data
Primary I/O Display (LCD/OLED/ect) Trigger Force Feedback Controls (Keypad/Buttons) Used for navigating software features. Team color selecting LEDs Tell a player which sensors are active Tell players which team a player is aligned. Other game specific options
Budget ComponentEstimated Low Price Estimated High Price Likely Range Microprocessor/ Microcontroller/ FPGA $0.58 (8bit Pic) $150 (High speed Z80) $3-$20 DSP/Micro for GPS $3$300$3-$20 GPS Chip$30$60$30-$60 RF Link Transceiver $10$40$10-$40 Optical$100$300$40-$100 DSP/Micro for RF Link $10$50$10-$30 Power/connectors/ casing/misc. $30$200$45-$150
Safety Low voltage/ Low current system will be fairly harmless to users. Low power IR light is harmless. You can’t prove that RF signals are harmful so HAH! Common sense.
Risks Unable to get parts. Price of adding feature is too expensive. Complexity of feature is too hard to implement in a semester time frame. Scheduling issues.
Contingency Modular system eliminates need some compatibility issues since we will have a communication protocol for between components. Modular system we can drop a module without having to completely redesign our system. If a system can’t be implemented to complexity we can remove that module for the time being. SVN software/ /weekly meetings.
Who and What John: Main board Communications TJ: RF link GPS Jen-Yuan: Power supply Circuit Modeling Richard: Coding Documentation