公开(公告)号：US20220090805A1

公开(公告)日：2022-03-24

申请号：US17028704

申请日：2020-09-22

Applicant: Johnson Controls Technology Company

Inventor： Steven R. Vitullo ,  Kelsey Carle Schuster ,  Michael Richard Rhodes ,  Jonathan Cox

IPC: F24F11/30 ,  F24F11/62 ,  G05B15/02

Abstract: A method for determining a stability of a building device includes receiving time series data from building equipment regarding a first operational parameter of the building equipment, determining, for one or more time steps of the time series data, a deviation between a setpoint and a recorded value of the first operational parameter, calculating, for the one or more time steps, a trapezoidal area based on an absolute value of the deviation and a length of a time step, calculating a stability index value for the building equipment by summing the trapezoidal areas for a subset of the one or more time steps over a time horizon, and initiating an automated response based on the stability index value.