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  • February 26, 2015 at 8:25 pm in reply to: Marker Colours #1439
    uRADMonitor
    Keymaster

    Hi Ed,

    I could add a quick legend right now, but the entire website will be completely changed soon, and several improvements will take care of this request as well.

    So better let’s go with the newer version instead.

    February 24, 2015 at 1:57 pm in reply to: High readings after firmware upgrade? #1431
    uRADMonitor
    Keymaster

    Hi Lars,

    What’s strange about it is that also the duty cycle has increased:
    https://www.uradmonitor.com/data/0.1/public.php?id=11000016&param=duty&start=25&size=xxlarge&integration=3

    Did you change the power supply or the power supply cable?

    EDIT: I found the answer, it was the temperature that caused the duty cycle increase: the higher temperature levels affected the permeability of the ferrite core in the high voltage inverter, resulting in the higher duty cycle:
    https://www.uradmonitor.com/data/0.1/public.php?id=11000016&param=temp&start=25&size=xxlarge&integration=3

    Still, I don’t know what’s causing the increase in readings, but I will think more about it.

    • This reply was modified 10 years, 7 months ago by uRADMonitor.
    February 23, 2015 at 8:26 pm in reply to: High readings after firmware upgrade? #1426
    uRADMonitor
    Keymaster

    Lars, I see the increase dates back to Feb 20:

    https://www.uradmonitor.com/data/0.1/public.php?id=11000016&param=cpm&start=25&size=xxlarge&integration=3

    What changed at that point?

    February 23, 2015 at 8:22 pm in reply to: New Firmware enables rrdtool graphing. #1424
    uRADMonitor
    Keymaster

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

    February 21, 2015 at 12:55 pm in reply to: Notable radiation events noticed? #1418
    uRADMonitor
    Keymaster

    It looks like a test with a radiation source.

    • This reply was modified 10 years, 7 months ago by uRADMonitor.
    February 21, 2015 at 12:54 pm in reply to: uRADMonitor API for DIY units #1417
    uRADMonitor
    Keymaster

    Thanks wolf, I hope to have the API ready as soon as possible. I will post all details here, and in a dedicated blog post as well.

    February 21, 2015 at 12:52 pm in reply to: What is the maximum value for "Uptime" #1416
    uRADMonitor
    Keymaster

    That counter is a uint32_t, and it can go from 0 to 2^32-1, or 0..4294967295 .

    4294967295 seconds means aprox. 136 years.

    February 16, 2015 at 9:45 pm in reply to: Unit reading zeros #1365
    uRADMonitor
    Keymaster

    This can only indicate tube damage during transit, but it is somewhat unlikely, as it never happened until now. Unit data during pre-shipment tests is attached.

    Attachments:

    1. public.php_.png

    February 16, 2015 at 5:14 pm in reply to: Please, change unit coordinates. #1360
    uRADMonitor
    Keymaster

    Certainly – New coordinates in place. Congrats on running the first Russian unit. The SBM-20 has returned home 🙂

    Thank you!
    Radu

    February 12, 2015 at 5:37 pm in reply to: monitoring using mrtg #1336
    uRADMonitor
    Keymaster

    That is a very nice solution!

    However I am surprised you preferred to use the HTML content instead of the JSON available under http://ip/j

    February 11, 2015 at 10:37 am in reply to: Wrong Latitude and Longitude for my monitor. #1329
    uRADMonitor
    Keymaster

    Coordinates updated!

    I will think about a way of implementing your requirement. Thanks!

    February 11, 2015 at 10:13 am in reply to: db-performance #1328
    uRADMonitor
    Keymaster
     Your SQL query has been executed successfully (Query took 196.2649 sec)
CREATE INDEX idx_db_devid ON uradmonitor(
db_devid
)

    I was just creating 7 charts in parallel for some experiment with various tubes. It was hard for the server, but after adding this additional index all 7 were generated instantly!

    Speed improvement: amazing!

    Thanks

    February 9, 2015 at 10:02 am in reply to: First reading after power-on is abnormaly high #1312
    uRADMonitor
    Keymaster

    Hi Rick,

    I didn’t notice this in my tests so it might be a particular case. Ignoring the first readings is not the best option, we would need to see the root cause of the spike instead. Ignoring would waste precious data, and we’ll never know how to set a “first interval” value. 1 minute? 10minute? Not reliable as if there is a problem it can happen at any time.

    Looking at the chart I see the time axis is continuous, where did the power off occur?

    On older firmwares there was a default duty cycle set for the inverter. At power up this could have produced higher voltages, potentially resulting in excessive counts on the geiger tube, however I see you run 110 already, where the duty cycle starts at an absolute minimum and is brought up to the required value, as controlled by the internal regulator.

    Another cause might be the so-called “compensation capacitor” that might need to be replaced on your unit. This component is responsible for controlling any unwanted oscillations taking place over the tube. But I see no reason why this capacitor would fail, so this is not a real explanation either.

    Power failures might still induce voltage spikes of various kinds. Can you run a few power off/on cycles and see if this is happening on a consistent basis? I suspect not.

    But let me know.

    Thanks,
    Radu

    February 9, 2015 at 12:24 am in reply to: Marker Colours #1309
    uRADMonitor
    Keymaster

    Hehe, I wrote a linear color divider like this myself some time ago, but in C. Thanks for the code!

    February 9, 2015 at 12:23 am in reply to: Wrong Latitude and Longitude for my monitor. #1308
    uRADMonitor
    Keymaster

    Done!

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