Real-time Environmental Monitoring

This topic has 14 replies, 7 voices, and was last updated 7 years, 10 months ago by Urs Wirthmueller.

Viewing 14 posts - 1 through 14 (of 14 total)

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February 23, 2015 at 8:22 pm #1424

Radu
Keymaster

Great stuff, I just promoted it to sticky. Thanks for sharing!

February 24, 2015 at 11:44 am #1428

Bjorn Roesbeke
Participant

Where is the rrdscript variable used?

February 24, 2015 at 4:46 pm #1434

shogunx
Participant

Good eye, Bjorn. It appears to be declared, but unused. I just checked the directory, and there is no output to it. Perhaps Pixel had intended a use for it, but never implemented the function.

February 24, 2015 at 7:28 pm #1435

Pixel_K
Participant

Nice work, yes the value position shifted in the latest firmware (which added a missing comma), hence the additional modifications.

you can delete the rrdscript line, it’s a leftover from earlier script version.

I would use a while loop instead a recursive call, which is a bad practice in this case.

February 24, 2015 at 11:53 pm #1436

shogunx
Participant

Hi Pixel_K. Thank you, nice work yourself. Ack on the rrdscript line, and I understand the versioning problem on the cut arguments. Sure, while loop is cleaner. Cron is cleaner too, actually. I just wanted to leave the shell attached to an xterm, so I could watch the data as it comes in. Having scratched my itch, I decided that was good enough. Want to use this thread like a version control system, with the latest code revisions in the most recent posts?

Ideally we could have the script act like an installer on the first run as well, asking the user what ip address the urad is on, where to store the data, etc. It could even test for curl and rrdtool on debian based derivatives (and likely others) and prompt an apt-get install of those if not present. I only say this because there will be a great many not so technical users, and we want to be able to collect data from their devices as well.

February 26, 2015 at 8:40 pm #1444

Radu
Keymaster

shogunx, for something as useful as this, let me know if you would like to do the version control in a blog post instead.

March 5, 2015 at 7:41 am #1486

shogunx
Participant

That is probably a good idea.

March 5, 2015 at 11:49 am #1487

Pixel_K
Participant

I still have to update mine to #111, but that’s a great idea, so the script can live it’s own life.

March 5, 2015 at 9:51 pm #1488

Radu
Keymaster

Scott, your account should now be able to write blog posts. Feel free to give it a try!

July 16, 2015 at 7:55 pm #2058

cristianst85 (nox)
Moderator

Meanwhile I’ve done my own implementation but written in Perl.

Some key features are:
– automatic conversion to uSv/h when generating the graphs (the conversion is done using the appropriate factor for the detector present in the device);
– works with model A2 (pressure graphs).

You can find it on GitHub.

Also you can view the live graphs from my uRADMonitor device readings here.

July 17, 2015 at 9:01 am #2060

Radu
Keymaster

Hi Nox, that’s another excellent contribution, thanks for sharing!

As offered to the other guys, would you be interested in presenting your SW setup in a blog article, with backlinks to your website, I can update your account accordingly. Let me know.

September 4, 2016 at 2:28 pm #3471
Nicolas_Daly
Participant
Hi,

Excellent post. I used to be mad about graphing everything and this is a good excuse to get back to it.

I’ve gone for a 60 second step and added a trend of 2 Hours on the daily graph
```
	 CDEF:trend_cpm=cpm,7200,TREND \
                AREA:cpm#00CCCC:"Count Per Minute\g" \
                        GPRINT:cpm:MAX:" Maximum \: %5.1lf " \
                        GPRINT:cpm:AVERAGE:" Average \: %5.1lf " \
                        GPRINT:cpm:LAST:" Current \: %5.1lf \l"  \
		  LINE2:trend_cpm#000000:"Count Per Minute Trend 2 Hour\g"   
```
September 6, 2016 at 2:30 am #3472

Nicolas_Daly
Participant

Excuse the double post. I’ve found the odd time when curl requests hang so may I suggest changing

jsondata=$( /usr/bin/curl -s $URL );
to
jsondata=$( /usr/bin/curl -s $URL --max-time 5 --retry 10 --retry-delay 1);

June 16, 2017 at 8:10 am #4541

Urs Wirthmueller
Participant

The script looks great.

Would it be possible to adapt it to the A3 model?

Also – as I suppose the script does download the data locally. Is it possible to download those data from the uradmonitor server including the credentials in the script?
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