DEVELOPING AUTOMATIC
VEHICAL LOCATION SYSTEMS
by Simon Taylor
In essence, any automatic
vehicle location (AVL) system can be considered as two main
centers: the vehicle (or mobile system) and the central
site (or control system). Components that can be used in
both these systems, the latency of location and the costs
of the communication systems involved are considered.
Recent events in the
UK have generated a lot of interest in tracking systems
that are designed to be worn by, or can locate, children.
This relatively new and very interesting application area
leads to a closer look at power, antenna and implementation
issues, discussed later in the article.
Please
click following links to read each topic:
MOBILE
SYSTEM
MOBILE
UNIT
GSM
MODEMS
GPS
RECEIVER
VEHICLE
TRACKING SYSTEM
OTHER
SONSIDERATIONS
CHILD
TRACKING
FEEDBACK
All of the concepts
described here are very broad in that many readers may have
specific variants of these ideas. We welcome feedback from
readers on any of the technologies and issues raised in
the article.
Simon Taylor is Product Manager of Telecom design Communications
Ltd., Basingstoke, UK, telephone +44 (0)1256 332800, or
e-mail simon@tdc.co.uk
