developing a standard for building / control data via mqtt

[superkalt]

is anyone interested in developing a standard for building / control data via mqtt

something like Bacnet over MQTT, just a lot easier

demo/# @ mqtt://superkalt.de:1883

example:

{
"Present_Value": 12.8,
"Properties": {
"Object_Identifier": "Sensor #1234",
"Object_Name": "Raumtemperatur",
"Object_Type": "Analog Input",
"Status_Flags": "normal",
"Event_State": "normal",
"Out_Of_Service": false,
"Units": "°C",
"Description": "aktuelle Raumtemperatur",
"Min_Pres_Value": -10,
"Max_Pres_Value": 30,
"Limit_Enable": false,
"High_Limit": 20,
"Low_Limit": 5
}
}

so we would be able to build a kind of data point server. you only subscribe the "present_value" of the data point. the visualization automatically fetches the "Properties" and saves them locally