210 likes | 415 Views
SMART SHOPPING. Team Cornerstone Michael Brogdon Enrique Conde Chad Gill Doug Schuyler. Project Description. The system is made up of three different modules: Product Two different types of identification Passive RF ID Bar Code Shopping Cart
E N D
SMART SHOPPING Team Cornerstone Michael Brogdon Enrique Conde Chad Gill Doug Schuyler CAPSTONE Spring '06 CDR
Project Description The system is made up of three different modules: • Product • Two different types of identification • Passive RF ID • Bar Code • Shopping Cart • Computing system for product identification and real time price update • LCD, displaying product description and total price • RF link to communicate with checkout counter • Checkout Counter • RF link to communicate with shopping cart • Product Database CAPSTONE Spring '06 CDR
Purpose • Facilitate people’s shopping • Real time price update • Audible (multilanguage) description (price, product name, etc.) • Eliminate long/tedious lines • Uploading final price to checkout counter, so that customer only needs to pay (no need to scan everything) • Possible extension • Advertisement opportunities • Multilanguage Display CAPSTONE Spring '06 CDR
Shopping Cart Diagram CAPSTONE Spring '06 CDR
Checkout Counter Diagram CAPSTONE Spring '06 CDR
Timing Diagram HC12 CAPSTONE Spring '06 CDR
Timing out of CPLD CAPSTONE Spring '06 CDR
Software • Interrupt Handlers • Reads Ports PK0-PK2 for interrupt vector address • Buffers data from data bus. • Asserts line connected to port PK3 when completed • Display • Input: Pointer to Character data • Output: Character display to LCD • Audio • Input: Address to Sound Sequence • Output: Address on data bus to Digitalker CAPSTONE Spring '06 CDR
Software • Transmit • Input: Pointer to Data to send • Output: Data on SPI bus to RF link. • Receive • Input: Data from RF link on SPI bus • Output: Data to buffer • Idle • Input: N/A • Output: N/A CAPSTONE Spring '06 CDR
Parts List • 3 HC12 family Micro controllers. (Obtained) • 2 LCD’s (Obtained) • 1 Keypad (Obtained) • 2 Proto-boards (Obtained) • 4 32Kx8 bit SRAM (Obtained) • 4 512Kx8 bit Flash Memory (Obtained) • 2 RF Transmitters (Obtained) • 2 RF Receivers (Obtained) CAPSTONE Spring '06 CDR
Parts List continued • 1 44-pin Xilinx CPLD XC9536 (Obtained) • 1 84-pin Xilinx CPLD XC95108 (Obtained) • 1 Digit-talker kit (Obtained) • Multiple Miscellaneous CMOS IC’s (Obtained) • Miscellaneous Power Supply parts (Obtained) CAPSTONE Spring '06 CDR
Parts List continued • 1 RFID Reader/Writer (Not obtained yet) • 5 RFID Tags (Not obtained yet) • 1 12-Volt battery (Not obtained yet) CAPSTONE Spring '06 CDR
Schedule • CDR • Have every part we need ordered or received (Completed) • Startup Code for Microcontrollers (Completed) • Product ID with Bar code complete (Completed) • LCD test code (Completed) • Keypad test code (Completed) • Bar code test code (Completed) • Audio test code (Completed) • Initial design of PCB completed and start manufacturing (Design and proto-board completed) CAPSTONE Spring '06 CDR
Schedule Continued • Milestone I • Shopping cart (itself) complete • Revision of PCB design • Product RF ID complete • Partial Integration • Communication links up and running • Hardware Drivers ready CAPSTONE Spring '06 CDR
Schedule Continued • Milestone II • Final PCBs complete with parts installed • Shopping Cart complete with wiring and power supply • Checkout complete • Final testing and debug begins CAPSTONE Spring '06 CDR
Labor and Responsibilities • Michael Brogdon: Firmware and Software Development • Enrique Conde: Firmware and Software Development • Chad Gill: Hardware layout and design • Douglas Schuyler: Hardware layout and design, cart design CAPSTONE Spring '06 CDR