1. EPC Standards EPC System elements ： EPC Coding structure The reader/ tag Protocols Savant platform The Object Numbering Service (ONS) PML server

2. EPC Standards (cont.) UPC = Universal Product Code a unique code for every group of objects enables user such as supermarkets to identify every product two cans of Nestlé coffees have the same UPC

3. EPC Standards (cont.) EPC = Electronic Product Code next generation barcode coding scheme to electronically identify consumer goods vision: enable the automated, unique identification of tagged objects developed by EPCglobal (EAN, UCC) EPC consists of :UPC + serial number = 96 bits

4. EPC Infrastructure

5. EPC Infrastructure (cont.)

6. EPC Tag - 5 classes CLASSCharacteristicsNote CLASS 0, CLASS 0+ passive, read only,ID pre- assigned by tag vendors Class 0+ is writable Matrics provides Class 0 tags since 2003; CLASS 1 (Gen1, Gen2) passive, WORM, 96-128 bits user memory Alien Technology provides Class 1 tags since 2003 CLASS 2 Passive, Read/Write capable tagworking samples on market CLASS 3 Semi-passive( with battery), R/W capable and longer read range,30m Auto ID Center has not completed the IC design CLASS 4 Semi-passive( with battery), Long range,100m+ several year to complete

7. ISO 18000 vs EPC ISO 18000-6 and EPC, both specify UHF frequencies ISO 18000-6 specifies Air Interface protocol without considering basic structures such as network technology and IT platforms etc. ISO 18000-6 and EPC Tags will be compatible in the long run. 。

8. Tags available UHF Tags – 860 to 960 MHzHF Tags – 13.56 MHz EPC Class 0/0+ EPC Class 1 EPC Class 1 Gen 2 ISO 18000-6 U-Code 1.19 ISO 15693 ISO 14443 A ISO 14443 B ISO 18000 P3 EPC HF

9. Typical UHF tags EPC Class 1 IC Properties - 96 bit EPC R/W - UHF frequencies from 860MHz to 960MHz - Data transfer rate - To the tag 15 to 70 kbits/s - From the tag 30 to 140kbit/s - More than 10 000 write/erase cycles - 40 year data retention - Kill command

10. Typical UHF tags (cont.) Philips U-Code EPC 1.19 IC Properties - Memory - Supports 64 bit and 96 bit EPC - 256 bit user memory - persistent ID flag - UHF frequencies from 860MHz to 960MHz - Data transfer rate - Reader to tag 40kbits/s - Tag to reader 40kbits/s to 160kbits/s - depending on the regulatory area and amount of tags in reader field

11. Class 1 Gen 2 vs Class 1 Gen 1