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A2B works
by
establishing the geographical coordinates of you, the A2B user, and
calculating your relative position to the many, many points in the A2B
location-based database. Here's a brief overview of some of the key
concepts.
Geodesy
Geodesy
is the study of the shape and size of the Earth, and of the position of
points on the Earth's
surface. Navigation relies on geodesy. More...
Geodesic
Datums
You
may be
surprised to find out that the Earth is not a perfect sphere, but
rather an ellipsoid (or near-spherical) shape! A geodesic
datum is a system which allows you to define a coordinate system
to enable accurate positioning whilst taking into account the irregular
shape of the Earth. More...
GPS and
GPS Devices
Global
Positioning System (GPS)
devices receive signals from a range of satellites in
order to calculate your position on the Earth. Find out more about how
GPS works, and the various types of
GPS devices on offer, here.
GIS/LBS
Services
Geographical
Information Systems (GIS) and
Location-Based Services (LBS)
take advantage of positioning, navigation, computing and
telecommunications technologies to provide geographically-orientated
services to businesses and individuals. More...
Positioning
with A2B
A2B
relies on geodesy, on geodesic datums, positioning technology such
as GPS devices, and your Internet connection in order to deliver an LBS
system which you can use with the greatest of ease.
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