This document discusses RFID technology, comparing it to barcodes. It describes how RFID tags work with readers to transmit identification signals. The document outlines different types of RFID tags based on their signal strength and range. It provides examples of RFID applications in areas like manufacturing, retail, security, and access control. Finally, it presents a block diagram and overview of an RFID-based student attendance system, describing how it allows automatic attendance tracking and uploading records to a database.

1. BY
B.AJAY VARDHAN
B.SOWJANYA

2. INDEX
RFID
•Working
•Applications
RFID Vs Barcodes
•Description
•Types
RFID based attendance system
•Block diagram
•Circuit diagram
•Algorithm
•working

4. Tags (or chips) consist of
two parts:
1) Antennae
2) Processor/ storage
Receives signal from
reader and gives a return
signal with ID number
Reader sends number to
database or server
WORKING OF RFID

5. ACTIVE:
Tag signal availability of 100ft.
HIGH signal strength
VERY LOW required signal strength from the reader
example : Railway cars on a track
SEMI- PASSIVE:
Tag signal availability only within field of reader
LOW signal strength
LOW required signal strength from the reader
PASSIVE:
Tag signal availability < 10 ft.
VERY LOW signal strength
VERY HIGH signal strength required from reader
example : Retail Checkout
( Widely used because very cheap to make)
TYPES

6. Advanced Product Tracking
Real- time data management
Dramatic benefits to manufacturing process
Quick Convenience
Grocery Store, Library, Hospital
Instant identification
Time saver
Safety and Security
Locate/identify missing persons
Monitor prisoners
Easy Access
Access by authorized personnel only
Ease security concerns
APPLICATIONS

7. Does not require human to manually pass item
over scanner.
More accurate inventory count.
Can be incorporated into product, person,
animal.
Can track each individual item.
RFID vs. Bar Codes

8. RFID BASED ATTENDANCE SYSTEM

9. BLOCK DIAGRAM OF PROJECT

12. working
Browsing Database from an Excel table files
 Selecting Lecture Name according to Database.
 Browsing Attendance Text file from USB flash
 Register Table with attendance check
 Server interface with the devices via IP address.
Retrieved text file from the device

13.  This project is a full system for student monitoring in colleges, and
high education institutes.
 The system support two different types of outputs :
USB flash memory, and Ethernet.
 The device is supported with friendly using software for data analysis
and previewing .
 Lecturers need no more wasting time, and effort to have their
Attendance Register .
 Attendance Register now, easily uploaded to Database.
conclusions