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SeeedJP / wioterminal-co2checker

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The unit of co2 concentration was null #2

Closed matsujirushi closed 3 years ago

matsujirushi commented 3 years ago

I cannot found "ppm" in Semantic Type. https://github.com/Azure/opendigitaltwins-dtdl/blob/master/DTDL/v2/dtdlv2.md#semantic-types

matsujirushi commented 3 years ago

https://github.com/Azure/opendigitaltwins-dtdl/issues/110

matsujirushi commented 3 years ago

Density / DensityUnit / gramPerCubicMetre

matsujirushi commented 3 years ago
  1. CO2濃度はppmが一般的。（と思う）
  2. Semantic Typeにppmは無い。
  3. 密度はg/m3を使用できるが、g/m3->ppmにCO2を意識する必要があり、DTDLにCO2を明示する方法が無い。

現時点は、Telemetryのdescriptionに書いておくことで良しとする。

matsujirushi commented 3 years ago

https://github.com/SeeedJP/wioterminal-co2checker/commit/b09f4338c8e073ac12eff60dee5a224ade30e589