Correct coordinates taken from ODK with Garmin

Hi to all,
I've tested the precision of ODK in collecting coordinates by comparing the coordinates taken by a Garmin, and I saw that ODK overestimated the position of few meters.

My question is: there is any approach to pair the professional GPS coordinates with ODK a more for reliable mapping?

Thanks a lot.

Others have definitely done what you ask.

Perhaps someone has written a bridging app that they can share to achieve
this?

And are you aware of the "accuracyThreshold" attribute?

See the snippet here:

https://opendatakit.org/help/form-design/examples/#geolocation_prompts

··· On Wed, May 25, 2016 at 2:04 AM, wrote:

Hi to all,
I've tested the precision of ODK in collecting coordinates by comparing
the coordinates taken by a Garmin, and I saw that ODK overestimated the
position of few meters.

My question is: there is any approach to pair the professional GPS
coordinates with ODK a more for reliable mapping?

Thanks a lot.

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Mitch Sundt
Software Engineer
University of Washington
mitchellsundt@gmail.com

Hi Mitch, thanks for the answer.

I searched the forum to see if someone has done this with an external GPS, but I don't found any instruction about that.

I'm aware of "accuracyThreshold" attribute, but I created my form with Build tool, so I don't know if it would be possibile to put such attribute from there.

Thanks again.

··· > Others have definitely done what you ask. > > > Perhaps someone has written a bridging app that they can share to achieve this? > > > And are you aware of the "accuracyThreshold" attribute? > > > See the snippet here: > > > https://opendatakit.org/help/form-design/examples/#geolocation_prompts > > > > > > On Wed, May 25, 2016 at 2:04 AM, wrote: > Hi to all, > > I've tested the precision of ODK in collecting coordinates by comparing the coordinates taken by a Garmin, and I saw that ODK overestimated the position of few meters. > > > > My question is: there is any approach to pair the professional GPS coordinates with ODK a more for reliable mapping? > > > > Thanks a lot. > > > > -- > > -- > > Post: opend...@googlegroups.com > > Unsubscribe: opendatakit...@googlegroups.com > > Options: http://groups.google.com/group/opendatakit?hl=en > > > > --- > > You received this message because you are subscribed to the Google Groups "ODK Community" group. > > To unsubscribe from this group and stop receiving emails from it, send an email to opendatakit...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > > > > > -- > > Mitch Sundt > Software Engineer > University of Washington > mitche...@gmail.com

For ODK Build, you would need to edit the XML and add that attribute in
manually.

And there is also a setting in the device settings that selects whether to
also use wifi- or cell- based geodata when reporting coordinates.
This could also affect the accuracy of the returned coordinate.

··· On Thu, May 26, 2016 at 3:08 AM, wrote:

Hi Mitch, thanks for the answer.

I searched the forum to see if someone has done this with an external GPS,
but I don't found any instruction about that.

I'm aware of "accuracyThreshold" attribute, but I created my form with
Build tool, so I don't know if it would be possibile to put such attribute
from there.

Thanks again.

Others have definitely done what you ask.

Perhaps someone has written a bridging app that they can share to
achieve this?

And are you aware of the "accuracyThreshold" attribute?

See the snippet here:

https://opendatakit.org/help/form-design/examples/#geolocation_prompts

On Wed, May 25, 2016 at 2:04 AM, sust...@gmail.com wrote:
Hi to all,

I've tested the precision of ODK in collecting coordinates by comparing
the coordinates taken by a Garmin, and I saw that ODK overestimated the
position of few meters.

My question is: there is any approach to pair the professional GPS
coordinates with ODK a more for reliable mapping?

Thanks a lot.

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Mitch Sundt
Software Engineer
University of Washington
mitche...@gmail.com

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Mitch Sundt
Software Engineer
University of Washington
mitchellsundt@gmail.com

For ODK Build, you would need to edit the XML and add that attribute in manually.

Ok, perfect, thanks for your clarification!

And there is also a setting in the device settings that selects whether to also use wifi- or cell- based geodata when reporting coordinates.
This could also affect the accuracy of the returned coordinate.

Yes thanks, I'm aware of that.

If the GPS you are using supports Bluetooth, you can pair your Android
device with that GPS
(https://play.google.com/store/apps/details?id=googoo.android.btgps&hl=en)
and ODK should be able to use those coordinates.

Yaw

··· -- Need ODK consultants? Nafundi provides form design, server setup, in-field training, and software development for ODK. Go to https://nafundi.com to get started.

On Fri, May 27, 2016 at 10:58 AM, sustione@gmail.com wrote:

For ODK Build, you would need to edit the XML and add that attribute in manually.

Ok, perfect, thanks for your clarification!

And there is also a setting in the device settings that selects whether to also use wifi- or cell- based geodata when reporting coordinates.
This could also affect the accuracy of the returned coordinate.

Yes thanks, I'm aware of that.

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Hi Yan, thanks a lot for the answer!

I will have a look to your solution, thanks again.

··· > If the GPS you are using supports Bluetooth, you can pair your Android > device with that GPS > (https://play.google.com/store/apps/details?id=googoo.android.btgps&hl=en) > and ODK should be able to use those coordinates. > > Yaw > -- > Need ODK consultants? Nafundi provides form design, server setup, > in-field training, and software development for ODK. Go to > https://nafundi.com to get started.