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  • February 21, 2015 at 12:54 pm in reply to: uRADMonitor API for DIY units #1417
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    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
    Radu
    Keymaster

    Done!

    February 9, 2015 at 12:21 am in reply to: db backup – be aware #1307
    Radu
    Keymaster

    Most likely when the cron called mysqldump backup script runs, some of the new entries are lost.

    My plan was to archieve the old data periodically and keep a smaller DB on the run. This would have helped the backup process as well, yet some time would still have been used.

    I will look on the alternatives you’ve indicated.

    Thanks!

    February 9, 2015 at 12:19 am in reply to: db-performance #1306
    Radu
    Keymaster

    Thanks Vinz, I’ll add it to the prod server too since select by id is often used.

    Would be very helpful if Ally or the other guys with expertise in DBs would step in for some more hints/comments.

    February 3, 2015 at 8:18 pm in reply to: Marker Colours #1294
    Radu
    Keymaster

    Thank you , I was planning to add a colour gradient. Suggestion added to the todo list.

    February 3, 2015 at 8:16 pm in reply to: Monitor 11000051 Locasin is incorect #1293
    Radu
    Keymaster

    Coordinates updated!

    February 3, 2015 at 7:48 pm in reply to: Monitor in wrog place #1200003B #1292
    Radu
    Keymaster

    The location has been updated as per your request.

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