[Ovmsdev] Locations and scripts

Michael Balzer dexter at expeedo.de
Tue Apr 2 14:26:48 HKT 2019


I've used the trace command to log high volume CAN traffic, that's no problem (at least with a recent module having the SD speed fix).

The tracing just lacks a file rotation, but that shouldn't be hard to add.

Regards,
Michael


Am 02.04.19 um 04:58 schrieb Mark Webb-Johnson:
> I am not sure if the SD is fast enough to store can log files. It would not be too hard to start/stop logging in javascript (without code changes).
>
> Regards, Mark.
>
>> On 2 Apr 2019, at 10:28 AM, Stephen Casner <casner at acm.org> wrote:
>>
>> Well, for my car this event has occurred twice in a few months, so the
>> idea of running a CAN bus dump in a wifi session all the time is not
>> practical.  What we would need would be a CAN bus dump to rotating
>> files, like the error message logging can do.
>>
>>                                                        -- Steve
>>
>> On Tue, 2 Apr 2019, Mark Webb-Johnson wrote:
>>
>>> Steve,
>>>
>>>> What should I look for when this false alarm occurs?  Is it likely
>>>> that the alarm is issued when stable GPS operation is restored, so
>>>> what I really would need to see is a log of conditions before the
>>>> alarm?
>>> What we would ideally need would be at the time of the issue:
>>>
>>> metric list v.p
>>> CAN bus dump (can1) ID #100, B1=0x83,0x84,0x85
>>>
>>> I appreciate that is hard. Perhaps just leave a CAN bus dump running
>>> over wifi throughout the event? You could leave that running for
>>> hours. We could then replay that back through a box to recreate the
>>> issue.
>>>
>>>> And now that I have issued some messages in the app, how do I switch
>>>> back to other functions?  Is there a way to make the keyboard drop and
>>>> then find the buttons at the bottom of the screen?  (I realize that
>>>> restarting the app would be a solution.)
>>> Just click on the screen, away from the keyboard.
>>>
>>> Regards, Mark.
>>>
>>>> On 2 Apr 2019, at 5:47 AM, Stephen Casner <casner at acm.org> wrote:
>>>>
>>>> Mark,
>>>>
>>>> The false alarm occured again a few minutes ago.  I wanted to use the
>>>> web shell UI to check some status, but using the new messages feature
>>>> of the iPhone app I found the wifi was wedged again.  After I turned
>>>> wifi off and then back to client mode I would log in from the web
>>>> again.  I issued a location status command that indicated good lock.
>>>>
>>>> What should I look for when this false alarm occurs?  Is it likely
>>>> that the alarm is issued when stable GPS operation is restored, so
>>>> what I really would need to see is a log of conditions before the
>>>> alarm?
>>>>
>>>> And now that I have issued some messages in the app, how do I switch
>>>> back to other functions?  Is there a way to make the keyboard drop and
>>>> then find the buttons at the bottom of the screen?  (I realize that
>>>> restarting the app would be a solution.)
>>>>
>>>>                                                       -- Steve
>>>>
>>>> On Mon, 1 Apr 2019, Mark Webb-Johnson wrote:
>>>>
>>>>> I don't see this on the Model S vehicle.
>>>>>
>>>>> I suspect the issue is not handling GPS lock indicator correctly
>>>>> in the vehicle modules. For the roadster, we use ID#100, B1=0x85
>>>>> (GPS direction and altitude), B2==1 to control this, but that was
>>>>> always a 'best guess' without much data to back it up.
>>>>>
>>>>> Regards, Mark.
>>>>>
>>>>>> On 31 Mar 2019, at 11:12 PM, Stephen Casner <casner at acm.org> wrote:
>>>>>>
>>>>>> Mark,
>>>>>>
>>>>>> This message reminds me to mention that both Timothy Rodgers and I
>>>>>> have received false alarm car-theft notifications from OVMS.  Have
>>>>>> you?  I presume these are caused by temporary inaccuracy in the GPS
>>>>>> signal.
>>>>>>
>>>>>>                                                      -- Steve
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