Johnson Controls Technology Company

Johnson Controls Tyco IP Holdings Llp

Tyco Fire + Security Gmbh

Jon T Mueller

Andrew J Przybylski

Joseph P Carmody

Michael J Wenzel

Matthew J Ellis

John H Burroughs

Todd Schluechtermann

Peter J Hazelberg

A controller for heating, ventilation, or air conditioning (HVAC) equipment includes a communications interface configured to communicate with first HVAC equipment and second HVAC equipment and a processing circuit communicably coupled to the communications interface. The processing circuit is configured to detect a staging event for the first HVAC equipment occurring at a first time, obtain a delay time based on an estimated amount of time required to reach steady state after the staging event for the first HVAC equipment occurs at the first time, determine whether the delay time has elapsed since the staging event for the first HVAC equipment has occurred, and prevent the second HVAC equipment from staging in response to a determination that the delay time has not elapsed since the staging event for the first HVAC equipment has occurred.

Control system with coordinated equipment staging

A brokering architecture is disclosed. The brokering architecture focuses on storing changes to the building system. Measurements are quantized to an integer representation and encoded so that time series data is stored in a series of changes of value. The encoded timeseries may be compressed using compression schemes that advantageously make use of small changes between adjacent stored values of the timeseries. Compressed timeseries values allow more data to be stored in RAM or other short-term storage and provide a more responsive system to control physical systems like buildings. Timeseries compression may be provided through extensions accessed through a structured data format on the message bus. Extensions can cause the execution of certain instructions based on the fields in the structured data and may be used to provide functionality in addition to timeseries compression including BACnet communications, predictions, and simulations.

Building system with brokering architecture to provide timeseries compression and extensions

Systems and methods for modeling and controlling entities of a building system are provided. An exemplary method includes comparing an input indicating a new entity or connection between entities of a building system to a data model for the building system to determine whether the new entity or connection is represented in the data model, extending the data model to define the new entity or connection in response to determining that the new entity or connection is not represented in the data model, and using the data model with the new entity or connection in a control strategy to generate control decisions for the entities of the building system.

Systems and methods for modeling and controlling building system entities

Systems and methods for implementing an economic strategy such as a model predictive control (EMPC) strategy. An EMPC tool is configured to present to receive sinks and connections between central plant equipment. The EMPC tool also includes a data model extender configured to extend a data model to define new entities and/or relationships. The EMPC tool also includes a high level EMPC algorithm configured to generate an optimization problem and an asset allocator configured to solve the resource optimization problem in order to determine optimal control decisions used to operate the central plant.

Central plant control system with plug and play EMPC

A controller for multiple groups of equipment detects a staging event for a first group of equipment and determines when the staging event occurs. The controller determines whether a predetermined time period has elapsed since the staging event for the first group of equipment has occurred and prevents a second group of equipment from staging in response to a determination that the predetermined time period has not elapsed since the staging event for the first group of equipment has occurred. Preventing the second group of equipment from staging reduces peak energy consumption during the predetermined time period and reduces a demand charge based on the peak energy consumption.

A building management system for generating a building model for a building and operating building equipment of the building based on the building model. The system includes a processing circuit configured to receive a context, wherein the context includes metadata defining the building model for the building and generate a building model editor interface for viewing and editing the received context, wherein the building model interface includes building elements for the building model, wherein the building elements are based on the received context and represent the building equipment. The processing circuit is configured to receive user edits of the context via the building model interface, wherein the user edits include edits to the building elements, generate an updated context based on the user edits of the context, and deploy the updated context to control environmental conditions of the building with the building equipment based on the updated context.

Building automation system with an energy optimization builder and generic data model designer

A method for dynamic cloud based control of building equipment via a cloud based building management system includes instantiating a sequencer in response to receiving a startup request, receiving, via the cloud based building management system, a sequence package, wherein the sequence package includes configuration information for interfacing the cloud based building management system with the building site, collecting building data from the building equipment of the building site based on the sequence package, causing a control process to execute based on the collected data, and dispatching a command to the building equipment based on a result of the execution of the control process, wherein the command includes a command to control the building equipment to control an environmental condition of the building site.

Building automation system with a dynamic cloud based control framework

Systems and methods for implementing an economic model predictive control (EMPC) strategy in any resource-based system include an EMPC tool. The EMPC tool is configured to present user interfaces to a client device. The EMPC tool is further configured to receive first user input including resources and subplants associated with a central plant. The EMPC tool is also configured to receive second user input including sinks and connections between central plant equipment. The EMPC tool also includes a data model extender configured to extend a data model to define new entities and/or relationships specified by user input. The EMPC tool also includes a high level EMPC algorithm configured to generate an optimization problem and an asset allocator configured to solve the resource optimization problem in order to determine optimal control decisions used to operate the central plant.

A method for verifying and running a script for a building management system of a building includes receiving, by the building management system, the script, wherein the script indicates one or more operations to be performed with one or more data points of a data model of the building, determining, by the building management system, whether there is unit cohesion within the received script, wherein the unit cohesion indicates that a result value of executing the script with the one or more data points include units that match desired units, and determining, by the building management system, the result value by executing the script with the one or more data points in response to determining that there is unit cohesion.

Building automation system with a verifiable relationship building language

A central plant includes at least a first subplant and a second subplant configured to serve a thermal energy load of a building. A controller for the central plant includes an equipment staging detector configured to detect a staging event for equipment of the second subplant and to determine when the staging event occurs. The controller includes a subplant staging evaluator configured to use input from the equipment staging detector to determine whether a predetermined time period has elapsed since the staging event for the equipment of the second subplant has occurred. The controller includes a subplant staging preventer configured to prevent the first subplant from staging equipment of the first subplant in response to a determination that the predetermined time period has not elapsed since the staging event for the equipment of the second subplant has occurred.

Growing community of inventors

Milwaukee, WI, United States of America

Jon T Mueller