I think this might be an example of when an engineer or a developer design the user-facing portions of a system. A deeply technical perspective, at a complete loss in how to relate to an average outsider.
It really looks like an exercise in obfuscation.
However, it seems to have limited coverage, which makes it useless for many.
https://bgeigiezen.safecast.jp/store-2/
Looks like they might have had apps too, but they have been pulled from the App Store and Play Store?
Or could anyone in control of the network inject fake sensor data?
It’s quite a wonderful set of globally-distributed volunteers brought together by varying passions - from hardware hacking to citizen science.
Whether from fixed or mobile sensors, whether from radiation or air quality sensors, all data is CC0-licensed at birth and is freely available for download.
It's interesting they don't include, as a baseline reference, the near complete Australian coverage by 256 channel radiometric data (available for free download): https://www.ga.gov.au/scientific-topics/disciplines/geophysi...
Such datasets are relatively common across the globe and none that I'm aware of appear to be included.
Their devices appear to be all total count gieger types which don't seperate out energy bands or have much accuracy - ie. "good enough" for coarse results, not that great for identifying radon Vs ??? as a source.