ieee 2012 projects for m tech btech ece eee embedded systems@ srcembedded solutions- hyderabad. web:www.srcembedded.com, ph-8297 313 858 mail:srcembedded@gmail.com

1. ZigBee-based Vehicle Access Control System
With the increasing raise of people's living standards, the vehicle theft in community, as
well as the total amount of car, has a rapid growth. How to conduct an intelligent management to
the access of internal vehicles efficiently and effectively suffers more and more attention from
various circles.
This paper describes a set of vehicle access control system based on ZigBee wireless
technology. In this system, ZigBee coordinator and its terminal nodes installed respectively in
the entrance of the district and the vehicles, together form a ZigBee wireless sensor network.
Existing system:
At present, the most widely approaches used in vehicle management are:
1) Artificial inquiry identification method
2) Image recognition method
3) Contact IC Card Management
These are all following disadvantage i.e. dominated by personal factors; waste of labor
and difficulty of information communication. Such as large investment, low recognition rate and
susceptibility to weather, difficult to maintain, large investments in infrastructure facilities
Proposed system:
The implementation of this Vehicle Access Control Wireless System is based on ZigBee
technology. According to its applications, its network topology uses the star-shaped wireless
network, which consists of one monitoring center and a number of terminal equipments.
Monitoring center is composed by a computer and a network coordinator. The network
coordinator is a special full-function device (FFD), which can realizes a set number of ZigBee
services. It is responsible for communication with its child nodes, data collection and
dissemination of control information. In this system, the network coordinator is installed in the

2. duty room. It establishes and manages the network, receives the data and displays them on the
LCD (liquid crystal display). Meanwhile, the coordinator sends the data into the PC (Personal
Computer) through RS-232 serial cable. PC is responsible for storage and further processing of
the data.
Block diagram:
Vehicle:
Power
Supply
433.9MHZ
Keypad
RF
Transmitter
Child Node:

3. Power
Supply
433.9MHz
100
2.4GHZ
80
ZigBee
Micro
60
RF
Receiver
East
Transceiver West
40
Controller
North
20
AT89C51
0
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Relay
Driver
Gate
Control
Coordinator Node:
Power
Supply
2.4GHZ
100
80
Micro
60
ZigBee
LCD Display
East
West
40
Controller
North
20
Transceiver
AT89C51
0
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
MAX
232
Hardware Requirements:
PC

4. 
Power Supply

AT89C51

RF Transmitter

RF Receiver

ZigBee

Relay

LCD Display

Gate Module
Software Requirements:

Embedded C
 Keil Compiler
 VB .NET
Application:
Can be used in high security needed area like Government office ,IT parks,
atomic stations etc.
Advantage:

Avoid manpower

Low cost

Easy maintenance