When I do surveys for OpenStreetmap.org I take my GPS unit outside and
traverse the street/path/road etc in both directions to get a good
average set of nodes. On a good day here in the UK I can get the
accuracy down to a few feet using a Garmin eTrex Vista HCx. But that's
only after letting the unit track all available satellites for a minute
or two.
Getting sufficient signal inside a multi-story building is pretty difficult.
I've started testing a Samsung Galaxy Tablet and using Google maps to
show where you are causes your position to jump about as the unit flips
between the different methods of locating your position.
On 08/01/12 17:57, BJ Freeman wrote:
how do you explain surveying with gps?
David Legg sent the following on 1/8/2012 9:21 AM:
Nice idea but I don't think this would work very well unless you were
eating alfresco!
GPS signals don't penetrate buildings very well and triangulation using
cell tower signals would mean you would have to place each table several
hundred yards apart!
David Legg
On 08/01/12 16:34, BJ Freeman wrote:
using 10.2 tablets, customer can order and pay for meals.
with the GPS built in position in the restaurant can be determine and
translated to table an place at the table.
the staff have to be trained to put the tables in preconfigured places
and ways.
the payment allows for spiting the bill and manually Entering the CC
info for each that is paying or use the attached card swipe.
