Accurate Positioning - Strong Housekeeping
Terminal-Logistics,
Forest-Harvesting, Waste-Transports.
Some of Entrepreneurs where the
Positioning claims "rather a meter than two".
When we
talk about the accuracy of the GPS-positioning there is some facts to be understand,
especially when the Duty is rolling on poor Satellite-signals. Narrow streets,
high-houses, tunnels and other distractions causes that the GPS-satellites does
not reach all-time or it is highly disordered due to mirror-signals.
For metering the distance
under all conditions with accurate positioning requires that a meter is always
a meter. Single GPS-Signal is never accurate. The accuracy of metering claims
3D-positioning and ADR.
What is different - Calculated and Real Distance?
Calculated
distance base on Time and Position. You receive by time interval several
3-dimensionel signals and calculate theoretically the position. When you are
moving, the distance is measured by Straight-line distance between 2 positions.
By using Time-parameter the Average-speed between 2 positions is calculated.
Real Distance base on core
from Wheels having interval of max. 10cm. When Wheel is still, the positioning
is absolute silent. The Wheel-Speed base on Time-frequency of pulses giving exact
Instantaneous speed.
What is ADR (Automotive Dead
Reckoning) technology?
As a Back-up for aborts, the
positioning shall have Dead-reckoning included. It means that the Computer itself
shall be able to “play” as a Satellite when GPS-signal aborted. Dead-reckoning
means that the computer hardware technology supports the Client-application
with GPS-data likewise it is connected to satellites.
But, Dead-reckoning is not
all. For warranted accuracy in long-time aborts, Automotive Dead-reckoning
(ADR) ensures exact Positioning.
Keep-on-Tracking –
Where-ever it takes!
