US 12,282,324 B2
Model predictive maintenance system with degradation impact model
Mohammad N. Elbsat, Milwaukee, WI (US); Michael J. Wenzel, Oak Creek, WI (US); and Robert D. Turney, Watertown, WI (US)
Assigned to Tyco Fire & Security GmbH, Neuhausen am Rheinfall (CH)
Filed by Johnson Controls Technology Company, Auburn Hills, MI (US)
Filed on Jun. 11, 2020, as Appl. No. 16/899,220.
Application 16/899,220 is a continuation in part of application No. 15/895,836, filed on Feb. 13, 2018, granted, now 11,487,277.
Claims priority of provisional application 62/883,508, filed on Aug. 6, 2019.
Claims priority of provisional application 62/511,113, filed on May 25, 2017.
Prior Publication US 2020/0301408 A1, Sep. 24, 2020
Int. Cl. G05B 23/02 (2006.01); G05B 19/042 (2006.01); G06N 3/08 (2023.01)
CPC G05B 23/0283 (2013.01) [G05B 19/0428 (2013.01); G05B 23/0291 (2013.01); G06N 3/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A model predictive maintenance (MPM) system for building equipment, the MPM system comprising:
one or more processing circuits comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
estimating a degradation state of the building equipment;
using a degradation impact model to generate parameters of a separate resource consumption model based on the degradation state of the building equipment, wherein the degradation impact model receives the degradation state of the building equipment as an input to the degradation impact model and provides the parameters of the resource consumption model as an output of the degradation impact model;
using the resource consumption model to predict an amount of one or more input resources that are provided as inputs to the building equipment and consumed by the building equipment to produce an amount of one or more output resources by converting the one or more input resources into the one or more output resources, wherein the resource consumption model defines a relationship between the amount of the one or more input resources consumed and the amount of the one or more output resources produced based on the parameters generated and output by the degradation impact model;
generating a maintenance schedule for the building equipment and operating decisions for the building equipment based on the amount of the one or more input resources predicted using the resource consumption model;
initiating a maintenance activity for the building equipment in accordance with the maintenance schedule; and
controlling the building equipment by generating electronic control signals based on the operating decisions for the building equipment and causing the building equipment to affect a variable state or condition in a building using the electronic control signals.