[Talk-in] Mapping without a smartphone : options + process?

[Sunil]

Hi Mayuresh,

I started with a Garmin long back( around 10 years), Bought with Europe 
map, So  I used it with OSM maps 
(https://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin) thus came to 
know about OSM, started mapping.

That  Garmin was not very accurate (I have to correct most of those 
roads later). After 2-3 years later  some  smartphones came with 
better(<10m) accuracy like samsung galaxy or 1+1(without net/sim in 
flight mode all times, file copy through USB).

Recently I felt dual frequency GNSS like 1+7Pro etc have less error-- I 
don't own one so I cannot say for sure.  This is the reason I suggested 
smartphone, I also use feature phone mostly(smart phone GPS for mapping).

   One of my requirement is to map newly constructed 4 lines(from 2 
lines) highways with good accuracy also chicanes(speed barriers ) and 
humps placed in highways ---this need accuracy in 2-3m as I cannot map 
while driving. My current devices does not support this accuracy.

Most probably Garmin would have improved a lot. But the specification 
does not say much just "high-sensitivity receiver", they don't mention 
dual frequency or accuracy.

Please let me know your experience with Garmin. Even I am also thinking 
of buying one at some point :), for the same reason.

Regards

Sunil



On 7/25/21 11:55 AM, mayuresh at kathe.in wrote:

> Hi Sunil,
>
> For starters, I am wary of all cell phones, I only tolerate my feature phone because I it to receive OTP messages while transacting via websites.
>
> Secondly, the GPS functionality found in most smartphones is sub-standard when compared with a dedicated GPS receiver.
>
> ~Mayuresh
>
> On Saturday, July 24, 2021 10:01 PM IST, Sunil <iamsunilk at gmail.com> wrote:
>   
>> Hi Mayuresh,
>>
>> Why not use a old smart phone (But with good GPS- eg, 1+ 7 or later with
>> Dual-frequency GNSS) also  with lineage support
>> "https://wiki.lineageos.org/devices". switch on  the phone only when
>> required. no SIM, no WIFI always in flight mode.
>>
>> Any apk download from fdroid in your ubuntu box. transfer through USB
>> pen drive. Use OSM tracker to track paths or any POIs, you can also use
>> OSMAND also.  Similarly .gpx files transfer once in a while. Update OSM
>> from ubuntu using Josm.
>>
>> Never connect the phone to any network!. If you wanted you can remove
>> microphone(needed help from  some repair guy), cameras you can put
>> tapes. If you can remove antenna connection ---not sure it is possible
>> --it is better :).
>>
>> Phone needed USB support and Micro phone port, in case you want record
>> audio.
>>
>> I hope mostly it should be secure.
>>
>> Regards
>>
>> Sunil
>>
>> On 7/24/21 6:10 PM, mayuresh at kathe.in wrote:
>>> I don't own a smartphone, and probably never will, I don't trust them.
>>> I live in an area of Mumbai Suburbs which is now coming-up in a big way and hence there is lots of fresh information that could be fed into OSM.
>>> My primary work environment is Ubuntu desktop and I solicit information about equipment (which works with such a configuration) I could purchase (other than any smartphone) to help me with the process of pinpointing locations and adding-in meta-data to OSM.
>>> Thank you.
>>>
>>>
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