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Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4019) - 03 April 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Data flatlining
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- Posts: 3
- Joined: Wed 15 Nov 2017 2:33 pm
- Weather Station: davis & aercus
- Operating System: win10
Data flatlining
At irregular intervals from a few days to about three weeks, the data to Cumulus (or WD) flatline for no apparent reason. It is easy to bring them back on: close down Cumulus, disconnect the console, remove the batteries, after a few seconds replace the batteries, reconnect the console, press the Down key on the console for a few seconds, reload Cumulus and, after a couple of minutes, everything works again until the next glitch.
Is there any way to avoid this flatining?
Is there any way to avoid this flatining?
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Data flatlining
Are you saying this happens with Weather Display too?
What weather station? You have two in your profile. It sounds like you mean the Fine Offset station - these are well known for the USB connection locking up. I assume you are using the settings in Cumulus to synchronise reads with the station?
What weather station? You have two in your profile. It sounds like you mean the Fine Offset station - these are well known for the USB connection locking up. I assume you are using the settings in Cumulus to synchronise reads with the station?
Steve
- ConligWX
- Posts: 1631
- Joined: Mon 19 May 2014 10:45 pm
- Weather Station: Davis vPro2+ w/DFARS + AirLink
- Operating System: Ubuntu 22.04 LTS
- Location: Bangor, NI
- Contact:
Re: Data flatlining
have you any power management set on your windows 10 box to user power Management on USB connections?
Which Weather station console connection is locking up? Davis or aercus?
here are some tips on stopping Windows from preventing power management.
https://helpdeskgeek.com/how-to/prevent ... sb-device/
please note even when Windows Power Options Scheme is set to High Performance, USB ports can still be powered down!
https://helpdesk.flexradio.com/hc/en-us ... ed-Devices
Also installing Ferrite Cores onto the USB cable of the Fine Offset console or using a USB powered hub can help with lockups.
Which Weather station console connection is locking up? Davis or aercus?
here are some tips on stopping Windows from preventing power management.
https://helpdeskgeek.com/how-to/prevent ... sb-device/
please note even when Windows Power Options Scheme is set to High Performance, USB ports can still be powered down!
https://helpdesk.flexradio.com/hc/en-us ... ed-Devices
Also installing Ferrite Cores onto the USB cable of the Fine Offset console or using a USB powered hub can help with lockups.
Regards Simon
https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir • CumulusMX v4.0.0
https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir • CumulusMX v4.0.0
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- Posts: 3
- Joined: Wed 15 Nov 2017 2:33 pm
- Weather Station: davis & aercus
- Operating System: win10
Re: Data flatlining
Steve, thanks for your reply. It happens with both WD and Aercus at the same time. Sorry, I don't know what 'Fine Offset' means. The back of the console reads:steve wrote:Are you saying this happens with Weather Display too?
What weather station? You have two in your profile. It sounds like you mean the Fine Offset station - these are well known for the USB connection locking up. I assume you are using the settings in Cumulus to synchronise reads with the station?
Aercus Instruments
Weather Station (receiver)
Model WS 3083...
Yes, settings in Cumulus are synchronised.
I realise that this problem is Aercus and not specifically Cumulus, but I thought I'd try for help here, Ta much!
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- Posts: 3
- Joined: Wed 15 Nov 2017 2:33 pm
- Weather Station: davis & aercus
- Operating System: win10
Re: Data flatlining
Thanks for your help. Both the Davis and Aercus systems stop working at the same time; both flatline. As I said to Steve, I know this is not specifically a Cumulus problem but probably within the Aercus console as rebooting it by USB connector and battery removal is a workaround for both weather systems at the same time. Your idea of ferrite cores may be a help.Toxic17 wrote:have you any power management set on your windows 10 box to user power Management on USB connections?
Which Weather station console connection is locking up? Davis or aercus?
here are some tips on stopping Windows from preventing power management.
https://helpdeskgeek.com/how-to/prevent ... sb-device/
please note even when Windows Power Options Scheme is set to High Performance, USB ports can still be powered down!
https://helpdesk.flexradio.com/hc/en-us ... ed-Devices
Also installing Ferrite Cores onto the USB cable of the Fine Offset console or using a USB powered hub can help with lockups.
- ConligWX
- Posts: 1631
- Joined: Mon 19 May 2014 10:45 pm
- Weather Station: Davis vPro2+ w/DFARS + AirLink
- Operating System: Ubuntu 22.04 LTS
- Location: Bangor, NI
- Contact:
Re: Data flatlining
A Powered USB Hub is usually a better option though slight more expense or try a better USB cable with Ferrite chokes built in may possibly help.devil wrote:Your idea of ferrite cores may be a help.
Regards Simon
https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir • CumulusMX v4.0.0
https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir • CumulusMX v4.0.0
- Super-T
- Posts: 890
- Joined: Tue 09 Sep 2008 3:37 am
- Weather Station: wh-1081
- Operating System: Weather Laptop - Windows 10 Pro
- Location: Auckland, New Zealand
- Contact:
Re: Data flatlining
WH-1081 Weather Station.
Slightly different problem but possible the same cause. I get just the outside temperature flat-lining at around 7am each day. It was intermittent but is turning into very regular now. Strange thing is that it is only the Outside Temperature that flat-lines.
Easy to fix by going back to the previous backup and copying the data to the data folder. Then all good for another day.
First pic shows the outside temperature flat. Second pic shows the Pressure as NOT flat-lined (Wind Direction & strength both NOT flat lined as well).
Third pic shows all OK after replacing the data from backup.
This suggests to me that the problem is in the Console and only affects the outside temperature data as the data is actually still in the console but just not displaying correctly. Possibly a problem with Cumulus but unlikely as nothing has changed there.
This Weather Station has been up and running for quite a while. Connected to an "always On" laptop that doesn't sleep. The USB Cable has a couple of loops through a Ferrite.
One suspicion could be that somehow the latest MS updates have upset things.
Ignore the temperature rapid climbs.....sun-strike which I am working on.
Any logical explanation welcomed as I can't see a pattern or a reason yet.
Slightly different problem but possible the same cause. I get just the outside temperature flat-lining at around 7am each day. It was intermittent but is turning into very regular now. Strange thing is that it is only the Outside Temperature that flat-lines.
Easy to fix by going back to the previous backup and copying the data to the data folder. Then all good for another day.
First pic shows the outside temperature flat. Second pic shows the Pressure as NOT flat-lined (Wind Direction & strength both NOT flat lined as well).
Third pic shows all OK after replacing the data from backup.
This suggests to me that the problem is in the Console and only affects the outside temperature data as the data is actually still in the console but just not displaying correctly. Possibly a problem with Cumulus but unlikely as nothing has changed there.
This Weather Station has been up and running for quite a while. Connected to an "always On" laptop that doesn't sleep. The USB Cable has a couple of loops through a Ferrite.
One suspicion could be that somehow the latest MS updates have upset things.
Ignore the temperature rapid climbs.....sun-strike which I am working on.
Any logical explanation welcomed as I can't see a pattern or a reason yet.
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- Posts: 1124
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Data flatlining
Hi,
Cheers, Alan.
You have checked the spike removal setting, haven't you ?Super-T wrote:Slightly different problem but possible the same cause. I get just the outside temperature flat-lining at around 7am each day. It was intermittent but is turning into very regular now. Strange thing is that it is only the Outside Temperature that flat-lines.
Cheers, Alan.
- Super-T
- Posts: 890
- Joined: Tue 09 Sep 2008 3:37 am
- Weather Station: wh-1081
- Operating System: Weather Laptop - Windows 10 Pro
- Location: Auckland, New Zealand
- Contact:
Re: Data flatlining
Yes, set at 0.3C and that hasn't changed.
Mind you I have had to remove spikes larger than that at times so perhaps the spike removal is not working.
Also interesting is that the temperature spike removal is the only one operational under "Spike Removal"
Mind you I have had to remove spikes larger than that at times so perhaps the spike removal is not working.
Also interesting is that the temperature spike removal is the only one operational under "Spike Removal"
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- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Data flatlining
That’s a very low setting for spike removal, a Fine Offset “spike” is typically very much higher than that. Your flat-lining is almost certainly caused by your spike removal setting (i.e. your station is recording an increase in temperature of more than 0.3 degrees over a 48 second period, this is perfectly reasonable and is not a spike).
Steve
- Super-T
- Posts: 890
- Joined: Tue 09 Sep 2008 3:37 am
- Weather Station: wh-1081
- Operating System: Weather Laptop - Windows 10 Pro
- Location: Auckland, New Zealand
- Contact:
Re: Data flatlining
Bumped it up to 1 degree and will see what happens. Will take it higher if required.
Why would a low setting make the data flat-line. I thought it was to limit the height of the spike when there was a spike?
What do other people have the temperature spike removal set to?
Why would a low setting make the data flat-line. I thought it was to limit the height of the spike when there was a spike?
What do other people have the temperature spike removal set to?
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Data flatlining
All the true spikes I’ve seen generated by Fine Offset stations have been several degrees, so I I’m assuming that’s what most people have it set to. The typical spikes which Cumulus tries to ignore exist for one reading only, and the reading returns to normal. So the spike removal setting makes Cumulus ignore a reading which suddenly increases by more than the setting, on the assumption that it will return to normal on the next reading.
If it’s not actually a spike, just a valid increase, the reading won’t revert, so Cumulus continues ignoring the reading.
This isn’t a sophisticated facility, it does a reasonable job of filtering out the sudden, very large, one-off readings which Fine Offset stations are known to produce from time to time.
If it’s not actually a spike, just a valid increase, the reading won’t revert, so Cumulus continues ignoring the reading.
This isn’t a sophisticated facility, it does a reasonable job of filtering out the sudden, very large, one-off readings which Fine Offset stations are known to produce from time to time.
Steve
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- Posts: 1183
- Joined: Fri 27 Jul 2012 11:29 am
- Weather Station: Chas O, Maplin N96FY, N25FR
- Operating System: rPi 3B+ with Buster (full)
Re: Data flatlining
My spike setting has been 20 degrees Celsius, and I don't recall any problems ever with that figure in half a decade.steve wrote:All the true spikes I’ve seen generated by Fine Offset stations have been several degrees
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- Posts: 1124
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Data flatlining
Hi,
"0.3 degrees rise in 48 seconds" might sound like a reasonable limit, but it isn't.
Firstly, several "messages" from the transmitter might be "lost" due to radio noise or interference of some type. The Console only assumes a "problem" if about 7 consecutive transmissions are lost (> 5 minutes). Also, the Real Time Clock versions (not in Australasia) actually stop transmitting (weather) data for around 5 minutes after each hour. So users may need to consider the greatest possible rise that might ever occur over say 5 minutes or more.
Also, there have been several reports (from Australia I believe) that at least some of the WH308x (solar) versions generate quite large "steps" (approaching one degree C) in the scale at certain temperatures. This is presumably a "sample" calibration fault, but hasn't been explained or disproved. Personally, I don't use a spike threshold, but if I did, it would be at least several degrees C.
Note that the spike detection doesn't apply to Logger data, which explains why downloading from the Console fixed the flatline problem.
Cheers, Alan.
"0.3 degrees rise in 48 seconds" might sound like a reasonable limit, but it isn't.
Firstly, several "messages" from the transmitter might be "lost" due to radio noise or interference of some type. The Console only assumes a "problem" if about 7 consecutive transmissions are lost (> 5 minutes). Also, the Real Time Clock versions (not in Australasia) actually stop transmitting (weather) data for around 5 minutes after each hour. So users may need to consider the greatest possible rise that might ever occur over say 5 minutes or more.
Also, there have been several reports (from Australia I believe) that at least some of the WH308x (solar) versions generate quite large "steps" (approaching one degree C) in the scale at certain temperatures. This is presumably a "sample" calibration fault, but hasn't been explained or disproved. Personally, I don't use a spike threshold, but if I did, it would be at least several degrees C.
Note that the spike detection doesn't apply to Logger data, which explains why downloading from the Console fixed the flatline problem.
Cheers, Alan.
- Super-T
- Posts: 890
- Joined: Tue 09 Sep 2008 3:37 am
- Weather Station: wh-1081
- Operating System: Weather Laptop - Windows 10 Pro
- Location: Auckland, New Zealand
- Contact:
Re: Data flatlining
Thanks all. Much clearer now.