1. Introduction HBE-RFID-REX1

2. Basic components of HBE-RFID-REX
Basic principle: Wireless communication schemes such as coding and modulation
Reader: Antenna technology and band-by-band reader technologies
Embedded system: Handheld-reader technology applied to an embedded system
HBE-RFID-REX Features
RFID system 기본원리 이해를 위한 신호측정
125Khz LF와 13.56Mhz HF Reader
Air-interface 표준화
RFID 응용소프트웨어
Embedded System과 결합된 Reader의 응용 2

3. Components of HBE-RFID-REX
Name of
Module
Function
Principle
Part 1
Encoding
Data generation and 2
Decoding
Data Decoding 3
ASK
ASK modulation 4
F S K
FSK modulation 5
PSK
PSK modulation
Reader 6 *
125Khz & 13.56Mhz
readers
*Another band (900 MHz)
Available
Embedded System 7
LCD
4-inch wide LCD 8
X-module
CPU-PXA255/Win CE 5.0 9
Base board
Power supply & I/O port

4. PART of RFID Principle HBE-RFID-REX
RFID is data communication between Reader and Tag Basic principle: Wireless communication schemes such as coding and modulation 4

5. Coding Part – Signal Encoding & Decoding)
HBE-RFID-REX
Coding Part – Signal Encoding & Decoding)
Signal coder-encoder &Decoder
64bit format Monitoring
8bit format Monitoring
Coding Data
NRZ/RZ/Manchester0/Manchester1/
Bi-phase/Miller
Device
CPU : Atmega128
CPLD : CPLD 5

6. HBE-RFID-REX Modulation & Demodulation Part ASK. FSK, PSK Modem
ASK. FSK, PSK Modulation & Demodulation Signal Monitoring
Check wave form by Test Point
NRZ/RZ/Manchester/Bi-phase/Miller Propagation
Make sure that there is no tag backscattering.
The process of power supply to a tag 6

7. PART of RFID Reader HBE-RFID-REX 125kHz Reader 13.56MHz Reader7

8. RFID Reader & Antenna HBE-RFID-REX A. Operation Forms B. Base Bands
reader is typically run in one of the following three forms:
- Combined to the base, non-combined/independent, or combined with a handheld reader.
B. Base Bands
Independent readers are replaceable by others.
125KHz reader: No chipset is used.
13.56MHz reader: An exclusive chipset is used for EM4094 of EM Microtronics.
C. Practice in Antenna
1) Transmit data using inductive coupling.
- Send data through RLC resonance.
- Use impedance matching in practice.
2) Measure the recognition distance of a tag in practice.
3) Find properties of antennas according to their shapes.
Extension
Single Reader by PC
Hand held reader by Embedded Module
Extend Application with ZigbeX, Bluetooth 8

9. HBE-RFID-REX 125kHz Reader & Coil antenna
900MHz Reader & Patch antenna
13.56MHz Reader & PCB antenna

10. HBE-RFID-REX 구성

11. Embedded Part HBE-RFID-REX LCD Module PXA-255 Module
4” Wide LCD With Touchpad
UART-ZigbeX/Bluetooth module
PXA-255 Module
CPU : intel PXA-255
OS : WinCE 5.0
Connection
Wired LAN/Full UART 11

12. A handheld reader using an embedded system
HBE-RFID-REX
A handheld reader using an embedded system
WinCE
응용 실습 예 12

13. PC Application HBE-RFID-REX 13.56MHz Reader
125kHz Reader PC application
13.56MHz Reader
900MHz Reader Experiment
Visual C++ for 125kHz/13.56MHz Reader