ZIGBEE BASED CAR SECURITY SYSTEM

INTRODUCTION

The main aim of this project is to develop a more useful and high security system for CAR using ZIGBEE. This includes two module .one module is security system in CAR and other one is Portable user module. Portable user module indicates the CAR status. You can read the inside temperature of car. Both modules are communicating through ZIGBEE Module. Based on built network, the system provides multi-task application and monitoring functions which allow users to monitor the objects at real time.

Tasks Done

• Gas Sensing• Temperature Sensing• Door Sensor• Panic Sensor• AC control• Car Door Lock/Unlock

BLOCK DIAGRAM SECURITY SYSTEM IN CAR

GAS Sensor

BLOCK DIAGRAM PORTABLE USER MODULE

Microcontroller AT89S52(8051)Used In Security System In Car

• The AT89S52 is a low-power, high-performance CMOS 8-bitmicrocontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry- standard 80C51 instruction set and pin out.

• Features:• 8K Bytes of In-System Programmable (ISP) Flash Memory• 4.0V to 5.5V Operating Range• 256 x 8-bit Internal RAM• 32 Programmable I/O Lines• Full Duplex UART Serial Channel• Fully Static Operation: 0 Hz to 33 MHz• Vital role of Micro controller-AT89S52 in this project: It is used to Control and• Monitor all the operation.

Microcontroller AT89c2051(8051)Used In Portable User Module

• The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K bytes of Flash programmable and erasable read-only memory (PEROM).

• The AT89C2051 provides the following standard features: 2K bytes of Flash, 128 bytes of RAM, 15 I/O lines, two 16-bit timer/counters,

• 2K Bytes of Reprogrammable Flash • 2.7V to 6V Operating Range • Fully Static Operation: 0 Hz to 24 MHz• Two-level Program Memory Lock • 128 x 8-bit Internal RAM • 15 Programmable I/O Lines • Two 16-bit Timer/Counters • Six Interrupt Sources • Programmable Serial UART Channel

Zigbee

•Technological Standard Created for Control and Sensor Networks •Based on the IEEE 802.15.4 Standard •Created by the ZigBee Alliance

IEEE 802.15.4 & ZigBee In Context

20 JAN 2009 ZigBee 9

– “the software” – Network, Security &

Application layers– Brand management

IEEE 802.15.4– “the hardware” – Physical & Media Access

Control layers

PHY868MHz / 915MHz / 2.4GHz

MAC

Security32- / 64- / 128-bit encryption

Application

API

IEEE 802.15.4

Customer

Silicon Stack App

Zigbee Features

• Low data rate• Low power consumption• Small packet devices• 2.4 GHz Global Band at 250kbps• Designed for wireless controls and sensors

LCD DISPLAY

• Liquid crystal display is very important device in embedded system.

• It offers high flexibility to user as he can display the required data on it.

• LCD driver is a link between the microcontroller and LCD.

• The most commonly used LCDs found in the market today are 1 Line, 2 Line or 4 Line LCDs which have only 1 controller and support at most of 80 characters.

• LCDs supporting more than 80 characters make use of 2 controllers.

• Most LCDs with 1 controller has 14 Pins and LCDs with 2 controller has 16 Pins.

PIN DIAGRAM LCD

MQ-5 GAS SENSOR

• High sensitivity to LPG, natural gas.• Sensitivity to alcohol, smoke.• Fast response .• Stable and long life.

TEMPERATURE SENSOR• The DS18S20 digital thermometer provides Celsius temperature

measurements.• The DS18S20 communicates over a 1-Wire® bus that by definition

requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of -55°C to +125°C and is accurate to ±0.5°C

Key Features• Unique 1-Wire Interface Requires Only One Port Pin for Communication • Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM • Its Capability Simplifies Distributed Temperature Sensing • Applications Requires No External Components • Can Be Powered From Data Line. Power Supply Range is 3.0V to 5.5V • Measures Temperatures from -55°C to +125°C (-67°F to +257°F)

DOOR LOCK USING SOLENOID• A solenoid bolt is a type of electronic-mechanical locking

mechanism. This type of lock is characterized by the use of a solenoid to throw the bolt. Sophisticated solenoid bolt locks may use microprocessors to perform voltage regulation, reduce power consumption, and/or provide access control.

• AC Control is shown here by controlling simple DC motor through microcontroller

• Door Lock is sensed by using the limit switch Near door

Panic Sensor

Panic sensors send out a call for emergency help with the press of a button. you can activate an alarm any time inside car assured that help is on the way. with the button must be pressed reducing danger by providing safety call.

FEATURES

• Effective in implementation. • Low power consumption and compact size.• Good control range due to the usage of ZIGBEE• Gas Sensing and Temperature sensing.• Sensing for perfect door closure• Panic Alarm• AC control• Lock door from effective range.

Advantages

• Circuit is very simple.• Compact, power efficient.• No manual interpretation required at Car.• Accuracy is very high.• Can be used in all kinds of environment.

REFRENCE

• www.google.com• www.keil.com• www.datasheetarchive.com• www.atmel.com• Muhammad Ali Mazidi –“THE 8051

MICROCONTROLLER AND EMBEDDED SYSTEMS”, Pearson education.

THANK YOU