16-05-2012, 12:23 PM
AUTOMATIC VEHICLE LOCATOR
[attachment=22124]
Abstract
Is your car or a vehicle stolen or is it not visible in the thickest snow or is one among the several cars present? Do you wa nt to
know the arrival of the bus for which you are waiting? Are your children going alone in a vehicle and you want to track their
moments? Does your cargo consists of costly load and want to protect them? Do you want to keep track of your little playing
kids about where they are?
ANS: Automatic Vehicle Locator.
This Paper gives us a novel approach of using certain GPS technology in tracking not only vehicles, but even children and
to protect precious goods. So this technology has gained a lot of importance in the recent years. This paper tells us how this
technology works, its applications. It is still under research and development stage.
AUTOMATIC VEHICLE LOCATOR
Automatic vehicle location (AVL) is a computer -based
vehicle tracking system. For transit, the actual real -time
position of each vehicle is determined and relayed to a
control center. Actual position determination and relay
techniques vary, depending on the needs of the transit
system and the technologies employed. Transit agencies
often incorporate other advanced system features in
conjunction with AVL system implementation. Simple
AVL systems include: computer -aided dispatch software,
mobile data terminals, emergency alarms, and digital
communications. More sophist icated AVL Systems may
integrate: real-time passenger information, automatic
passenger counters, and automated fare payment systems.
Other components that may be integrated with AVL
systems include automatic stop annunciation, automated
destination signs, Vehicle component monitoring, and
Traffic signal priority.
AVL technology allows improved schedule adherence
and timed transfers, more accessible passenger
information, increased availability of data for transit
management and planning, efficiency/productivity
improvements in transit services .
What is AVL technology?
Automated Vehicle Locator (AVL) systems use satellite
and land communications to display each vehicle's
location, status, heading, and speed on the computer's
screen. AVL systems use one of four types of navigation
technology, or may combine two of these technologies to
compensate for inevitable shortcomings of any one
technology.
The four principal technologies employed for AVL
systems are:
1. Global Positioning System
2. Dead-Reckoning System
3. Signpost/Odometer Systems
4. Radio Navigation/Location
TRACKING SYSTEMS
There are two types of tracking systems.
PASSIVE TRACKING: The Passive Tracking System
modality refers to stand-alone GPS Receivers, which store
data for further process. Passive systems are typically
limited to vehicle tracking only. When a Passive Tracking
Device is installed in a vehicle, the location, time, velocity
and heading data is usually stored in the unit or transferred
to a handheld device and downloaded from the vehicle
when the vehicle returns to their base station.
REAL TIME TRACKING
Real Time Tracking Systems are based on mobile
stand-alone terminals which combine GPS and GSM
technology to determinate and transmit their position. A
two-way wireless communication link connects the unit
with the control center at all times. A portable GPS
tracking device can be used as an emergency cellular
phone with speed dialing for two -way voice
communication. It can silently call any emergency number
in the world for immediate assistance. The emergency
silent call feature also provides a digitized voice message
which can report the time, date, speed, heading, and
location of a person in distress.
[attachment=22124]
Abstract
Is your car or a vehicle stolen or is it not visible in the thickest snow or is one among the several cars present? Do you wa nt to
know the arrival of the bus for which you are waiting? Are your children going alone in a vehicle and you want to track their
moments? Does your cargo consists of costly load and want to protect them? Do you want to keep track of your little playing
kids about where they are?
ANS: Automatic Vehicle Locator.
This Paper gives us a novel approach of using certain GPS technology in tracking not only vehicles, but even children and
to protect precious goods. So this technology has gained a lot of importance in the recent years. This paper tells us how this
technology works, its applications. It is still under research and development stage.
AUTOMATIC VEHICLE LOCATOR
Automatic vehicle location (AVL) is a computer -based
vehicle tracking system. For transit, the actual real -time
position of each vehicle is determined and relayed to a
control center. Actual position determination and relay
techniques vary, depending on the needs of the transit
system and the technologies employed. Transit agencies
often incorporate other advanced system features in
conjunction with AVL system implementation. Simple
AVL systems include: computer -aided dispatch software,
mobile data terminals, emergency alarms, and digital
communications. More sophist icated AVL Systems may
integrate: real-time passenger information, automatic
passenger counters, and automated fare payment systems.
Other components that may be integrated with AVL
systems include automatic stop annunciation, automated
destination signs, Vehicle component monitoring, and
Traffic signal priority.
AVL technology allows improved schedule adherence
and timed transfers, more accessible passenger
information, increased availability of data for transit
management and planning, efficiency/productivity
improvements in transit services .
What is AVL technology?
Automated Vehicle Locator (AVL) systems use satellite
and land communications to display each vehicle's
location, status, heading, and speed on the computer's
screen. AVL systems use one of four types of navigation
technology, or may combine two of these technologies to
compensate for inevitable shortcomings of any one
technology.
The four principal technologies employed for AVL
systems are:
1. Global Positioning System
2. Dead-Reckoning System
3. Signpost/Odometer Systems
4. Radio Navigation/Location
TRACKING SYSTEMS
There are two types of tracking systems.
PASSIVE TRACKING: The Passive Tracking System
modality refers to stand-alone GPS Receivers, which store
data for further process. Passive systems are typically
limited to vehicle tracking only. When a Passive Tracking
Device is installed in a vehicle, the location, time, velocity
and heading data is usually stored in the unit or transferred
to a handheld device and downloaded from the vehicle
when the vehicle returns to their base station.
REAL TIME TRACKING
Real Time Tracking Systems are based on mobile
stand-alone terminals which combine GPS and GSM
technology to determinate and transmit their position. A
two-way wireless communication link connects the unit
with the control center at all times. A portable GPS
tracking device can be used as an emergency cellular
phone with speed dialing for two -way voice
communication. It can silently call any emergency number
in the world for immediate assistance. The emergency
silent call feature also provides a digitized voice message
which can report the time, date, speed, heading, and
location of a person in distress.