[HOT] Tracking vehicle movements

Donal Hunt donal.hunt at gmail.com
Thu Jan 10 10:10:01 UTC 2019


I would echo Laurent's words. Deploy the solution that you need and figure
out the funding issues. Doing something like SMS-based reporting or
emailing data around the place will just move the cost burden elsewhere, be
more brittle and probably not get you what you want at the end of the day.

The initial problem statement seems to focus on how to verify the trust
that is being put in the partner undertaking the work. There are many many
ways to do that and technology is not always the answer. It would be
interesting to understand what other options have been identified and why
GPS-tracking has been decided on as the most effective means of delivering
the end result. If the GPS data being collected is also making it's way
back into the OSM ecosystem, that value should not be discounted.

Kind regards

Donal

On Wed, 9 Jan 2019 at 21:19, Laurent Savaete <laurent at where.tf> wrote:

> Hey Jorieke,
>
> What your question describes sounds like fleet management. I just found
> https://www.traccar.org/ which looks pretty well maintained (88
> contributors on github, latest code update only a few hours ago), is
> open-source and seems to provide exactly what you're after, without having
> to reinvent the wheel.
>
> Hope this helps,
>
> Laurent
>
>
> On 09/01/2019 19:22, John Whelan wrote:
>
> In Windows you can use a script to copy the files, compress them and send
> them.
>
> Android should have something equivalent.  If not Microsoft Visual Studio
> 2017 can build something that will run on android.
>
> We seem to be forever seeing requests from students to write software for
> OSM and HOT as a project.
>
> This one is a natural.
>
> Enabling GPS tracking is heavy on a battery life but you can buy power
> packs quite cheaply to extend the life.  I wouldn't connect it to the car
> battery, the voltage fluctuates to much and it will shorten the smartphone
> life down.
>
> So basically you want a program that will grab the GPS tracks every x
> minutes and compress them.  Technically zip is fine but the problem with
> zips is they can carry malware so use something else and gmail won't accept
> them anyway.
>
> Then it should just email these back to the server.  There should be an
> API to allow the software to write to something like Gmail on the
> smartphone.
>
> When gmail finds a connection it will send the messages home.  No fingers
> needed other than to connect to Wifi for gmail.  This one is the simplest.
>
> https://developers.google.com/gmail/api/guides/sending has got the basics.
>
> The other way is to use the signal that the phone uses to connect to the
> mast.  There are 140 / 160 characters at the end of the packet which are
> unused.  This is the basis of SMS text messaging.  In Europe, North America
> phone plans often come with unlimited SMS text messaging, Africa maybe
> different.  The advantage is you can collect the data in real time.  The
> disadvantage is the store and forward method of email is a bit more robust.
>
> There are SMS APIs that will run on a smartphone but my impression is
> these vary according to the phone so an SMS based solution that ran on any
> phone might be more difficult to build but someone who knows more about SMS
> might be in a better position to sort something out.
>
> Cheerio John
>
> Jorieke Vyncke wrote on 2019-01-09 10:48 AM:
>
> Thanks a lot for all your suggestions!
> I suppose easy to use is core, so options with manually copying traces is
> probably not the best solution.
> However I will forward all your suggestions to Last, and will leave it up
> to him to decide what is the best option for them on the ground!
>
> If there are more ideas, they still welcome :)
> Thanks a lot!
>
> Jorieke
>
> Op wo 9 jan. 2019 om 14:26 schreef Pierre BĂ©land <pierzenh at yahoo.fr>:
>
>> Hi Jorieke
>>
>> There are small vehicule gps logger, some very precise reading various
>> satellite networks. I tried a Columbus. It did work very well but could not
>> replace the battery.
>>
>> Search simply for vehicule gps logger. This Ebay link show various
>> models, some with an USB connection and / or sim card.
>> https://www.ebay.ca/sch/i.html?_nkw=vehicle+gps+data+logger
>>
>> regard
>>
>>
>>
>> Pierre
>>
>>
>>
>>
>>
>>
>>
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