Systems and methods for steady state detection

A device in a building management system, the device comprising:

• one or more circuits configured to implement operations comprising:
• receiving samples of one or more measured variables from building equipment;
• recursively updating a mean and a variance of the samples;
• determining whether the building equipment is operating in a steady state or operating in a transient state using at least one of the mean or the variance;
• and
• adjusting operation of the building management system based on determining whether the building equipment is operating in the steady state or operating in the transient state.

A building management system comprising:

• one or more processors;
• and
• one or more computer-readable storage media having instructions stored thereon that, when executed by the one or more processors, cause the one or more processors to implement operations comprising:
• receiving samples of one or more measured variables from building equipment;
• recursively updating a mean and a variance of the samples;
• determining whether the building equipment is operating in a steady state or operating in a transient state using at least one of the mean or the variance;
• and
• adjusting operation of the building management system based on determining whether the building equipment is operating in the steady state or operating in the transient state.