[Qgis-user] GPS issue on android tablet

[Giuseppe De Marco]

Hello again,
concerning the limitation imposed by GPS hardware, I
have to point out that on my smartphone (GT-I9505) there
is an option among localization services which can be checked
as high precision in GPS postion seeking that uses wifi and 3G
in addition to GPS.
As a matter of fact that option goes beyond GPS hardware limitation
and makes me able to retrieve positioning with a very low precision error.
I have to make tests now installing qgis on my phone and I will
post results as soon as possibile.

Giuseppe De Marco

2014-06-04 20:34 GMT+02:00 Giuseppe De Marco <demarco.giuseppe at gmail.com>:
> Thank for your quick reply .
> I went searching on the internet
> and I've found an interesting project named Piksi.
> Guess we'll have to wait and see!
>
> 2014-06-04 16:17 GMT+02:00 Richard McDonnell <richard.mcdonnell at opw.ie>:
>> This is down to the accuracy of the Receiver, nothing to do with QGIS.
>> You wont get Survey Grade data collection from any Tablet on the market
>> at present. Even with a Survey Grade GNSS Receiver connected to your
>> tablet, a 3.0 meter accuracy would be best case scenario.  Your only
>> solution is a dedicated GNSS Enable hand-held data collection unit,
>> utilising a real-time correction service, a number of Providers provide
>> such solutions, but they are expensive.
>> Regards,
>>
>> Richard.
>>
>>
>> On 04/06/2014 10:07, Giuseppe De Marco wrote:
>>> hello, I've been using Qgis on android tablet (samsung galaxy tab 2)
>>> and I've been experimenting GPS connection.
>>> The issue is that even if Qgis finds and use several satellites (9 or more)
>>> precision never gets under 3.0 meters but what is strange is that
>>> coordinates value fro the same spot varies very widely:
>>> Time                Coordinates                       Altitude
>>> 14:39:36       41.69528959 13.26464738      343.1
>>> 14:39:54       41.69529880 13.26466761      341.8
>>> 14:40:06       41.69528519 13.26470222      340.4
>>> 14:41:18       41.69528944 13.26472418      341.1
>>> 14:41:42       41.69529608 13.26471821      341.8
>>> 14:41:54       41.69530621 13.26470892      342.5
>>>
>>> I have colleagues who have experienced the same.
>>> Has anyone else experienced the same issue?
>>> Is that depending on GPS device or could it be a software related
>>> issue?
>>>
>>
>>
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>
>
>
> --
> Dott. Agr. Giuseppe De Marco
> RSPP settore ATECO 1
> Cell./Mobile: +39 3935041115
> Fax.: +39 07751850973
> PEC: giuseppe.de_marco at epap.conafpec.it



-- 
Dott. Agr. Giuseppe De Marco
RSPP settore ATECO 1
Cell./Mobile: +39 3935041115
Fax.: +39 07751850973
PEC: giuseppe.de_marco at epap.conafpec.it