wireless notice board using zig bee (seminar slide show)
TRANSCRIPT
D.Y Patil College Of Engg & Tech,
Kolhapur
Electronics Engineering DepartmentAcademic Year 2010-11
Wireless Notice Board Using ZigBee Technology
PROJECT IDEA
Paramveer Teli
Mukul Kamble
Sushant Sarnaik
PROJECT GUIDE
Mr. S.M Hirikude
Introduction
Notice Board is primary thing in any institution / organization or public utility places like bus stations, railway stations and parks.
Present Scenario Presently sticking various notices day-to-day is a difficult
process. A separate person is required to take care of this notice display. Also it contains manual errors.
What we are doing in our project We are using wireless technology for sending and
displaying the notice on Board.
Hardware & Software Requirement
ZigBee Transreceiver Module.
Computer.
UART Cables.
AT mega 16 Microcontroller.
Hyperterminal Programme for editing notice.
LED Display/ LCD Display.
Shift Registers (SIPO)_IC74164, Column Driver_ULN2803
Transmitter Block Diagram
Computer ZigBeeTx
KeyBoard Power Supply
Receiver Block Diagram
ZigBeeRx
MicroControlle
r
Power Supply
Column Driver
Row
LED MATRIX
Inside ZigBee Transreceiver
ZigBee Module Mounting to an RS‐232 Interface Board.
Figure shows ZigBee Configuration @ the transmitter side
Interface with Microcontroller
UART data packet 0x1F as transmitted through the RF module
Representation Of Character on LED Display
ULN2803 ( TRANSISTER SET)
CD4094 (SHIFT REG. SET)
ROWOF
BC557
#7
#1 & CLK Signal
LED Matrix
ZigBee General Characteristics
Two transmission frequencies available 2.4GHz and 915 MHz.
Data rates of 250 kbps @2.4 GHz, 40 kbps @ 915 MHz, and 20 kbps @868 MHz
Optimized for low duty-cycle applications (<0.1%) Low power (battery life multi-month to years)
Multiple topologies: star, peer-to-peer, mesh
Addressing space of up to:- (64 bit IEEE address) 256 devices can be connected.
Optional guaranteed time slot for applications requiring low latency
Fully hand-shaked protocol for transfer reliability
Range: Indoor 30m,Outdoor 90m.
Advantages
Up to 256 displays can be connected.
LED Displays gives better readability
Very low power consumption
Can be operated on batteries
Range of transmission is up to 100m
No data loss in transmission
Facility of alarm on every new notice display
Data will not be lost in power failure condition_EEPROM
Future Developments
In place of LED display, we can install LCD display.
Notice display through SMS.
Notice display using voice recognition method.
Applications
College Departments Notices
Railway Station Platforms
Airports
Traffic Control System
Reference
WineYard Technology
Atmel
Google Search Engine
Digi.com
ZigBee.com
Thank You !!