there is nothing in the log file related to the correction
we tried the service but it failed twice
1st run failed with error:
Oct 18 06:37:20 debian weewx[3413] CRITICAL __main__: **** File
"/usr/share/weewx/user/myservice.py", line 10
Oct 18 06:37:20 debian weewx[3413] CRITICAL __main__: **** def
new_archive_record(self, event)
Oct 18 06:37:20 debian weewx[3413] CRITICAL __main__: ****
^
Oct 18 06:37:20 debian weewx[3413] CRITICAL __main__: ****
SyntaxError: invalid syntax
Oct 18 06:37:20 debian weewx[3413] CRITICAL __main__: **** Exiting.
changed to
def new_archive_record(self, event):
run weewx again but failed with error
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** File
"/usr/share/weewx/weewxd", line 148, in main
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** engine
= weewx.engine.StdEngine(config_dict)
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** File
"/usr/share/weewx/weewx/engine.py", line 93, in __init__
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: ****
self.loadServices(config_dict)
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** File
"/usr/share/weewx/weewx/engine.py", line 161, in loadServices
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** obj =
weeutil.weeutil.get_object(svc)(self, config_dict)
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** File
"/usr/share/weewx/user/myservice.py", line 8, in __init__
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: ****
self.bind(weewx.NEW_ARCHIVE_RECORD, self.new_archive_record)
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** NameError:
name 'weewx' is not defined
Oct 18 06:42:20 debian weewx[3603] CRITICAL __main__: **** Exiting.
On Wednesday, October 18, 2023 at 4:42:59 AM UTC+3 Tom Keffer wrote:
> Just had a thought.
>
> I assume that weewxd is using software record generation. Check in the
> log. If so, [[Corrections]] does not apply the corrections to archive
> records because, in theory, the correction should have already been applied
> in the LOOP packets. Obviously that's not happening here.
>
> I've created issue #895 <https://github.com/weewx/weewx/issues/895> to
> track.
>
> In the meantime, what you can do is create a simple service
> <https://www.weewx.com/docs/customizing.htm#Adding_a_service> to do the
> calculation. It would look something like this (NOT TESTED):
>
> from weewx.engine import StdService
>
> class Power(StdService):
>
> def __init__(self, engine, config_dict):
> super(Power, self).__init__(engine, config_dict)
>
> self.bind(weewx.NEW_ARCHIVE_RECORD, self.new_archive_record)
>
> def new_archive_record(self, event)
> ampere = event.record.get('ampere')
> linevoltage = event.record.get('linevoltage')
> if ampere is not None and linevoltage is not None:
> event.record['consumption'] = ampere * linevoltage
> else:
> event.record['consumption'] = None
>
> This will work provided that linevoltage and ampere do not vary too much
> over the archive interval. Because you are using short intervals (60
> seconds), this is probably not much of a problem.
>
>
>
>
>
>
>
> On Tue, Oct 17, 2023 at 6:12 PM Mks Mk <[email protected]> wrote:
>
>> from database
>>
>> dateTime usUnits interval consumption ampere
>> linevoltage pf
>> 1697583060 1 1 90.84233333 141
>> 0.9
>> 1697583120 1 1 110.3686667 141
>> 0.9
>> 1697583180 1 1 77.51766667
>> 140.5 0.9
>> 1697583240 1 1 101.4843333 141
>> 0.9
>> 1697583300 1 1 100.0026667 141
>> 0.9
>> 1697583360 1 1 4.977666667 141
>> 0.9
>> 1697583420 1 1 4.907666667 142
>> 0.9
>> 1697583480 1 1 4.927666667 141.5
>> 0.9
>> 1697583540 1 1 4.886
>> 141.3333333 0.9
>> 1697583600 1 1 4.867666667 141
>> 0.9
>> 1697583660 1 1 4.877666667 141
>> 0.9
>> 1697583720 1 1 78.94533333 141
>> 0.9
>> 1697583780 1 1 90.26166667
>> 140.6666667 0.9
>>
>>
>> On Wednesday, October 18, 2023 at 3:35:05 AM UTC+3 Mks Mk wrote:
>>
>>> Hi Gary
>>>
>>> it all started here
>>> https://groups.google.com/g/weewx-user/c/ltOVkcY1fKc/m/7sQSVGN_AQAJ
>>>
>>> we were using fixed value for the incoming grid line to calculate the
>>> consumption but it was not accurate enough so we added new sensor to read
>>> the grid incoming line voltage.
>>> earlier this formula worked consumption = ampere * 117 / 1000 * 0.88
>>> but consumption = ampere * linevoltage / 1000 * 0.88 did not work
>>> the linevoltage input comes from different sensor than ampere, these
>>> two reading are generated in different loops, so based on Tom advice the
>>> weewx correction will not work
>>> thank you
>>>
>>> On Wednesday, October 18, 2023 at 1:28:55 AM UTC+3 gjr80 wrote:
>>>
>>>> So what does
>>>>
>>>> consumption = ((ampere * linevoltage) /1000) * 0.88
>>>>
>>>> do?
>>>>
>>>> Gary
>>>> On Wednesday, 18 October 2023 at 08:26:25 UTC+10 [email protected]
>>>> wrote:
>>>>
>>>>> Hi Tom
>>>>>
>>>>> we run weewx directly and found that 'ampere' & 'linevoltage' are in
>>>>> different loop because the data are coming from two different sensors by
>>>>> sdr.py driver.
>>>>> how we can combine these loops into one so weewx can process this
>>>>> formula, or what can we do to get this calculation done.?
>>>>>
>>>>> Thank you for your support
>>>>>
>>>>> On Tuesday, October 17, 2023 at 9:26:38 PM UTC+3 Tom Keffer wrote:
>>>>>
>>>>>> The only symbols that can be used in the [[Corrections]] formula are
>>>>>> other types in the archive record. So unless 'ampere', 'linevoltage',
>>>>>> and
>>>>>> 'pf' all appear in the record, the correction will not work.
>>>>>>
>>>>>> On Tue, Oct 17, 2023 at 9:48 AM Mks Mk <[email protected]> wrote:
>>>>>>
>>>>>>> we want to improve the accuracy of our home energy monitor and we
>>>>>>> added new sensor to read the main line voltage so we got two sensors
>>>>>>> and
>>>>>>> the data is logged in weewx database.
>>>>>>>
>>>>>>> [[sensor_map]]
>>>>>>>
>>>>>>> ampere = current.***.EfPacket
>>>>>>> linevoltage = payload5.*****.RadioHeadASKPacket
>>>>>>>
>>>>>>> the database have these columns which we created
>>>>>>>
>>>>>>> consumption
>>>>>>> ampere
>>>>>>> linevoltage
>>>>>>> pf
>>>>>>>
>>>>>>> we want to calculate the energy consumption so we added this
>>>>>>> correction
>>>>>>>
>>>>>>> [StdCalibrate]
>>>>>>>
>>>>>>> [[Corrections]]
>>>>>>> # For each type, an arbitrary calibration expression can be
>>>>>>> given.
>>>>>>> # It should be in the units defined in the StdConvert
>>>>>>> section.
>>>>>>> # Example:
>>>>>>> foo = foo + 0.2
>>>>>>> pf = 0.88
>>>>>>> consumption = ((ampere * linevoltage) /1000) * pf
>>>>>>>
>>>>>>> unfortunately weewx did nothing nor it complained about it. can
>>>>>>> weewx process such formula?
>>>>>>>
>>>>>>> thanks
>>>>>>>
>>>>>>> --
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "weewx-user" group.
>>>>>>> To unsubscribe from this group and stop receiving emails from it,
>>>>>>> send an email to [email protected].
>>>>>>> To view this discussion on the web visit
>>>>>>> https://groups.google.com/d/msgid/weewx-user/26effb7c-ad33-4de8-a9a0-f1390012ec5an%40googlegroups.com
>>>>>>>
>>>>>>> <https://groups.google.com/d/msgid/weewx-user/26effb7c-ad33-4de8-a9a0-f1390012ec5an%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>>>>> .
>>>>>>>
>>>>>> --
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>>
> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/weewx-user/fa342793-222a-4773-9bde-5bf97cf88dddn%40googlegroups.com
>>
>> <https://groups.google.com/d/msgid/weewx-user/fa342793-222a-4773-9bde-5bf97cf88dddn%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>
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