Change units of consumption and co2 emisson

[jakobmoellers]

Hello, i do not know where to change the units for consumption and co2 emission on the server. Now, they are g/s for co2 and l/s for consumption. They should be: kg/s for co2 l/h for consumption @autermann , @ChristopherStephan or @ubergesundheit , can you explain this to me or change the units to what I specified if applicable? The current units are not human readable because they have too many decimal digits. I changed the format so that the app delivers these values now but we have to specify the units on the server. Thanks for your help!

[jakobmoellers]

Sorry! kg/h for co2

[ChristopherStephan]

Done.

curl -X POST -H "Content-Type: application/json" -H "X-Token: bla" -H "X-User: bla" -d '{"name": "CO2", "unit": "kg/h" }' https://giv-car.uni-muenster.de/stable/rest/phenomenons

curl -X POST -H "Content-Type: application/json" -H "X-Token: bla" -H "X-User: bla" -d '{"name": "Consumption", "unit": "l/h" }' https://giv-car.uni-muenster.de/stable/rest/phenomenons

[jakobmoellers]

Okay thank you very much.

[nuest]

I already commented on this in an issue for the website, but because to me it is not made clear what this "unit change" actually means:

Imho it makes sense to differentiate here between units for storage and unit for display. Are the sensors actually so accurate and/or precise that i makes sense to store the detailed values? Or will you just change the "kilo" stuff and keep the precision after the comma? At least any rounding should happen for display, not before upload (unless the sensors are complete rubbish, but we don't konw that yet, do we?).

Or maybe just clarify :-)

[oraibalmegdadi]

the Rpm values are very bigger than other values, the Rpm unit is u/min,, can we change it to u/h ??

[ubergesundheit]

rpm stands for revolutions per minute :)

[jakobmoellers]

it won't get better when you do u/h... ;-) and no: r/min is an international standard

[dwilhelm89]

I guess no car really display values betwenn 0 and 10.000.

The common way is to user either RPM_1000 or RPM_100 (e.g. http://www.egauges.com/images/vdo/Large_d/A2C53408405-S-BR.jpg)

[jakobmoellers]

this is just a visualization question. we will not change meaningful values into something not useful just because a visualization cannot cope well with the values.

[oraibalmegdadi]

RPM and RPH both are valid in science

[dwilhelm89]

@oraibalmegdadi you can simply recalculate the value for the graph as I have done it on the profile page

[jakobmoellers]

You cannot simply group unrelated values in one bar graph... this makes no sense... remember the sign that Werner Kuhn likes to show: Population: 5000 Founded: 1854 Sum: 6854 ;-)

[oraibalmegdadi]

and i think the all the units should be either in mints or hours

[jakobmoellers]

even when RPH is used sometimes in science: in the context of CARS, definitely not.