In state topic,how to describe the information about the movable mechanism of vehicle?

[qiziqian]

MC may need know the information about the AGV mechanism in the "state" topic, such as the lifting mechanism of a lift vehicle, the fork of a forklift truck, or any other movable mechanism of the AGV,I notice the "load" field, but I think it doesn't feel right,it more likely to describe the information about the load.
What i need may be like this:

lift vehicle:
    {"physicalStates":{{"liftStates":{"height":0.2}}}
    
forklift:
    {"physicalStates":{{"forkStates":{"height":0.2}}}

......

The physicalStates should be able to extend.
What's next step for vda5050?Will the vda5050 have some standard device attributes built in?

[qiziqian]

Let me complement it, now we find a manufacturer use "liftState" to descript lift vehicle's lift in state topic,like this:

lift vehicle:
    {"liftState": {"height": 0.0}}
forklift:
    {"forkState":{{"height":0.5}}

and another manufacturer use "actuator" to descript their different types of vehicle:

lift vehicle:
{"actuator":{"liftState":{"height": 0.0}}}
forklift:
{"actuator":{"forkState":{"height": 0.0}}}

we prefer the second option,maybe the parameter names need to be changed a bit, but that's about it,this allows us to reduce customization,and we think it's best if the protocol has some defaults for common vehicles