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1. CAR MONITORING USING BLUETOOTH SECURITY SYSTEM
Abstract:
Most of security system nowadays become a need for vehicles and available with many
modern features. Theft tends to steal the car while the owners are away. Many security systems
available in market are not really stable and smart enough to deal with the intruders. As for many
security system, loss from robbery and if the criminal got away, it invites unconfident of security
reputation. Furthermore, it is crucial to has advanced alarm system which could not only secure
the vehicles, but also increase the chance to capture the criminal.
Existing system:
In the existing system, wired communications is used. There are disadvantages in existing
system such as cabling and fault confinement is tougher.
Proposed system:
In the proposed system, the advantages of RF communication are used. The human
presence inside a car is detected using PIR sensor. If human presence is detected, the intruder
alert will send to mobile phone through Bluetooth and the PIC microcontroller waits for some
time to activate the siren. If within the wait time the code is entered the siren will be reset. If not
the siren is turned on. This siren will continue on until reset code which is the password is
entered. In mobile an application is created to assist this system.

2. Block Diagram:
Car Section:
Power
Supply
LCD
PIC
16F877A
Micro
PIR Sensor
Controller
User Section:
Hardware requirements:
 PIC16F877A Microcontroller with Power Supply
 PIR Sensor
MAX
232

3.  LCD
 Bluetooth Modem
 MAX 232
Software requirements
 Embedded c
 MPLAB Compiler or CCS Compiler
Advantages
 Reliability is higher
 More Secure