[Ovmsdev] Traffic statistics

[Mark Webb-Johnson]

For an end-user, I would estimate around 500KB to 1MB a month nowadays.

It really depends on the cellular coverage, and rounding-up of the cellular provider. The way it works is that a GPRS connection behaves like a VPN tunnel. The module creates the connection, and sends/receives traffic over that connection. If the connection dies, the cellular provider rounds-up and charges per chunk of data (e.g. 10KB, 100KB or in some cases 1MB!), with a minumum of 1 chunk.

So, if you are in poor cellular coverage area, the module makes a GPRS connection, sends perhaps 100 bytes of data, then the connection is lost (and the cellular provider who gave you the poor coverage, rounds up that 100 bytes to 10KB!).

[ As an aside, that is why OVMS now has lots of code in net.c to try to maintain a GPRS connection and only give up on it after several minutes of trying. We used to just tear down GPRS and bring up a new connection, but that consumed too much cellular data. ]

The server tracks protocol-level data, and that is typically 10KB a day (perhaps 310KB a month). Actual cellular-level data is some multiple of that - perhaps 2 to 5 would be reasonable to expect for most users.

Regards, Mark.

On 19 Jan, 2013, at 8:09 PM, Michael Balzer <dexter at expeedo.de> wrote:

> Nikolay,
> 
> I normally have about 2-3 MB per month now, I guess my maximum would be around 5 MB.
> 
> Note: that includes GPS logging (streaming) activated, and I'm driving about 600-700 km per month.
> 
> I also currently use about 50-100 SMS per month, but I could already cut that down to near 0 by disabling the SMS channel, as I send all important notifications to the App as well.
> 
> Regards,
> Michael
> 
> 
> Am 18.01.2013 17:04, schrieb Nikolay Shishkov:
>> I just got off the phone with Telenor Telematics and they were very willing to help with telematics SIM card for the           OVMS.
>> Questions came up about the traffic used and number of SMSes. 
>> I remember I read some statistics for couple of days of usage, but I need some very rough averages per month. 
>> Can some of you guys that have been using the system for some time put some KB numbers, and if you like comment on your usage.
>> Thanks,
>> Nikolay
>> 
>> 
>> _______________________________________________
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>> OvmsDev at lists.teslaclub.hk
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> 
> -- 
> Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
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