AUTOMATIC VEHICLE LOCATION

ByCH. RAJUO8Q61A0514

IntroductionAutomatic vehicle location (AVL) is a

computer –based vehicle tracking system

The actual real –time position of each vehicle is determined and relayed to a control center

AVL systems include: computer -aided dispatch software, mobile data terminals, emergency alarms, and digital communications

About GPS:The GPS was specifically engineered so

that at least four of the 24 satellites would be positioned on the horizon at all times.

GPS Satellite

What is AVL technology?AVL systems use satellite and land

communications to display each vehicle's

location status heading speed on the computer's screen.

Navigation Technologies Four Navigation Technologies. They are

1. Global Positioning System

2. Dead-Reckoning System

3. Signpost/Odometer Systems

4. Radio Navigation/Location

TRACKING SYSTEMSThere are two types of tracking systems

PASSIVE TRACKING

REAL TIME TRACKING

PASSIVE TRACKING:It refers to stand-alone GPS Receivers,

which stores data for further process

Passive Tracking systems are limited to vehicle tracking only

It stores the location, time, velocity and heading data

REAL TIME TRACKING:It is based on mobile stand-alone terminals

which combine GPS and GSM to transmit their position

GPS Receiver

WORKING OF A GPS BASED AVL:

It contains the following

GPS SATELLITES

RADIO SYSTEM

COMMUNICATION CENTER

DISPATCH SECTION

CUSTOMER ASSISTANCE UNIT

WORKING OF SIGNPOST BASED AVL:

It contains the following

Optical scanners

Magnetic strips

Short-range radio

Beam emission

SIGNPOST BASED AVL:

GROUND BASED RADIO AVL:

. The system can operate with one or more antennas that broadcast a signal

DEAD-RECKONING:

AVL Benefits:

Uses Of AVLVehicle location display in real-time.

Recording of arrival and departure times

(proof of delivery etc).

Monitoring of driving practices (speed).

Alerts if vehicle leaves or enters a defined area

Applications Of AVLIn MilitaryGeo-CachingTrack AnythingIn Cargo

In cargo

ConclusionBy using GPS we track the location of the

vehicle

It is a cost effective and efficient technique

It gives protection to the vehicles and also the accident alerts

Thank You