公开(公告)号：US11237576B2

公开(公告)日：2022-02-01

申请号：US15668264

申请日：2017-08-03

Applicant: Johnson Controls Technology Company

Inventor： Homero L. Noboa ,  Kirk H. Drees ,  Vivek V. Gupta ,  Mark T. Fischbach

IPC: F24F11/00 ,  G05D23/19 ,  G06F3/0481 ,  F24F11/30 ,  F24F11/62 ,  G06F3/0484 ,  G05B23/02 ,  F24F11/52

Abstract: A building management system includes a communications interface connected to HVAC devices, a device identifier configured to identify the HVAC devices, a fault detector configured to detect a fault condition in the identified devices, and a causal relationship template retriever configured to retrieve a fault causation template of system parameters specific to the fault condition. The building management system further includes a status requestor configured to retrieve operating data from the identified devices and a user interface generator. The user interface generator is configured to populate the system parameters of the fault causation template with the retrieved operating data and transmit a signal to display a user interface with the populated fault causation template on a display screen.

公开(公告)号：US11226129B2

公开(公告)日：2022-01-18

申请号：US16512728

申请日：2019-07-16

Applicant: Johnson Controls Technology Company

Inventor： Kirk H. Drees ,  Herbert J. Doll ,  Gerald A. Duenkel ,  Marcello Passoni

IPC: F24F11/76 ,  F24F11/30 ,  F24F11/77 ,  F24F11/62 ,  F24F11/83 ,  F24F11/56 ,  F24F110/30 ,  F24F110/10 ,  F24F11/32 ,  F24F11/84 ,  F24F140/12 ,  F24F130/40

Abstract: A system configured to modify an environmental condition of a building includes a valve configured to regulate a flow of a fluid and an actuator. The actuator includes a motor and a drive coupling, the drive coupling driven by the motor and coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor configured to measure the flow rate of the fluid through the valve and a processing circuit coupled to the motor and the flow rate sensor. The processing circuit is configured to receive a flow rate setpoint and a flow rate measurement, determine an actuator position setpoint based on the flow rate setpoint and the flow rate measurement, and operate the motor to drive the drive coupling to the actuator position setpoint. The flow rate sensor and the processing circuit are located within a common integrated device chassis.

公开(公告)号：US20210356916A1

公开(公告)日：2021-11-18

申请号：US17389093

申请日：2021-07-29

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees

IPC: G05B13/02 ,  G06Q30/02 ,  G06F1/3203 ,  H04L12/14 ,  H04L12/28 ,  G05D23/19 ,  F24F11/30 ,  F24F11/62 ,  G05F1/66

Abstract: A system includes a processing circuit configured to provide an energy use setpoint based on energy data including an energy characteristic and subject to a constraint based on a variable condition of a building. The processing circuit is configured to estimate a value for the energy use setpoint that will result in the variable condition of the building satisfying the constraint and provide a control signal for equipment based on a difference between the energy use setpoint and a measured energy use.

公开(公告)号：US20210191342A1

公开(公告)日：2021-06-24

申请号：US16725999

申请日：2019-12-23

Applicant: Johnson Controls Technology Company

Inventor： Young M. Lee ,  Zhanhong Jiang ,  Viswanath Ramamurti ,  Sugumar Murugesan ,  Kirk H. Drees ,  Michael James Risbeck

IPC: G05B13/02 ,  G06N3/08 ,  G06N3/04 ,  G05B13/04 ,  F24F11/30 ,  F24F11/64

Abstract: Systems and methods for training a reinforcement learning (RL) model for HVAC control are disclosed herein. A calibrated simulation model is used to train a surrogate model of the HVAC system operating within a building. The surrogate model is used to generate simulated experience data for the HVAC system. The simulated experience data can be used to train a reinforcement learning (RL) model of the HVAC system. The RL model is used to control the HVAC system based on the current state of the system and the best predicted action to perform in the current state. The HVAC system generates real experience data based on the actual operation of the HVAC system within the building. The real experience data is used to retrain the surrogate model, and additional simulated experience data is generated using the surrogate model. The RL model can be retrained using the additional simulated experience data.

公开(公告)号：US11032172B2

公开(公告)日：2021-06-08

申请号：US16415144

申请日：2019-05-17

Applicant: Johnson Controls Technology Company

Inventor： Carlos Felipe Alcala Perez ,  Kirk H. Drees

IPC: H04L12/26 ,  G05B19/042 ,  H04L29/08 ,  H04L29/06

Abstract: An asynchronous wireless data transmission system includes a wireless sensor and a data recipient device. The wireless sensor includes a measurement device configured to collect a plurality of samples of a measured variable at a plurality of different sampling times, a transmission generator configured to generate a compressed data object containing the plurality of samples of the measured variable, and a wireless radio configured to transmit the compressed data object at a transmission time asynchronous with at least one of the sampling times. The data recipient device includes an object decompressor configured to extract the plurality of samples of the measured variable from the compressed data object.

公开(公告)号：US20210132586A1

公开(公告)日：2021-05-06

申请号：US17148123

申请日：2021-01-13

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Robert D. Turney ,  Kirk H. Drees ,  Matthew J. Asmus

IPC: G05B19/418 ,  G05B15/02 ,  G06Q10/04 ,  G06Q10/06 ,  G06Q50/06 ,  G06N20/00 ,  G05B13/04

Abstract: A controller for equipment that operate to provide heating or cooling to a building or campus includes a processing circuit configured to obtain utility rate data indicating a price of resources consumed by the equipment to serve energy loads of the building or campus, obtain an objective function that expresses a total monetary cost of operating the equipment over an optimization period as a function of the utility rate data and an amount of the resources consumed by the equipment, determine a relationship between resource consumption and load production of the equipment, optimize the objective function over the optimization subject to a constraint based on the relationship between the resource consumption and the load production of the equipment to determine a distribution of the load production across the equipment, and operate the equipment to achieve the distribution.

公开(公告)号：US10901446B2

公开(公告)日：2021-01-26

申请号：US15224205

申请日：2016-07-29

Applicant: Johnson Controls Technology Company

Inventor： Clay G. Nesler ,  Kirk H. Drees ,  James P. Kummer ,  Derek Supple ,  Marc D. Andraca ,  John I. Ruiz ,  Paul Harrison Rode

IPC: G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00 ,  G05F1/66 ,  G06Q10/06 ,  G06Q50/06 ,  G06Q50/16 ,  H02J13/00 ,  G01R21/133 ,  G05B15/02 ,  G05B17/02 ,  G05B11/01 ,  G06Q30/02

Abstract: A building manager includes a communications interface configured to receive information from a smart energy grid. The building manager further includes an integrated control layer configured to receive inputs from and to provide outputs to a plurality of building subsystems. The integrated control layer includes a plurality of control algorithm modules configured to process the inputs and to determine the outputs. The building manager further includes a fault detection and diagnostics layer configured to use statistical analysis on the inputs received from the integrated control layer to detect and diagnose faults. The building manager yet further includes a demand response layer configured to process the information received from the smart energy grid to determine adjustments to the plurality of control algorithms of the integrated control layer.

公开(公告)号：US20210018214A1

公开(公告)日：2021-01-21

申请号：US16516070

申请日：2019-07-18

Applicant: Johnson Controls Technology Company

Inventor： Jack A. Peterson ,  Kirk H. Drees ,  Brennan H. Fentzlaff ,  Homero L. Noboa ,  Brett M. Lenhardt

IPC: F24F11/84 ,  F16K1/52 ,  F16K31/04

Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. The actuator includes a motor and a drive device that is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor and a controller that is communicably coupled with the flow rate sensor and the motor. The controller is configured to receive a first flow rate setpoint, determine a first actuator position setpoint using a proportional variable deadband control technique based on the first flow rate setpoint and a flow rate measurement, and receive a second flow rate setpoint. In response to a determination that certain low flow criteria are satisfied, the controller is configured to determine a second actuator position setpoint using the proportional variable deadband control technique based on a low flow compensation setpoint.

公开(公告)号：US20210010693A1

公开(公告)日：2021-01-14

申请号：US16927063

申请日：2020-07-13

Applicant: Johnson Controls Technology Company

Inventor： Timothy C. Gamroth ,  Michael J. Wenzel ,  Mohammad N. ElBsat ,  David S. Eidson ,  James Burke ,  Kirk H. Drees ,  Thomas M. Seneczko

IPC: F24F3/16 ,  F24F11/61 ,  F24F11/39 ,  F24F11/64

Abstract: A building management system (BMS) for filtering a fluid within a building is shown. The system includes one or more sensors configured to measure one or more characteristics of a first fluid within an air duct of the BMS and measure one or more characteristics of a second fluid after the second fluid has been filtered. The system further includes a pollutant management system configured to receive data from the one or more sensors and control a filtration process. The filtration process selects a filter of a plurality of filters based on a level of the one or more characteristics of the first fluid and the one or more characteristics of the second fluid.

公开(公告)号：US10824127B1

公开(公告)日：2020-11-03

申请号：US16399751

申请日：2019-04-30

Applicant: Johnson Controls Technology Company

Inventor： Timothy I. Salsbury ,  Kirk H. Drees ,  John M. House ,  Carlos Felipe Alcala Perez

IPC: G05B19/042 ,  G05B19/048

Abstract: Systems and methods for monitoring and controlling a plant using extremum-seeking control. The method includes perturbing a setpoint for a controller by applying a dither signal to the setpoint. The controller uses a perturbed setpoint to generate one or more control inputs for the building equipment. Receiving, from the building equipment, an output signal and obtaining values of a performance variable based on the output signal, the values of the performance variable resulting from operating the building equipment based on the perturbed setpoint. The method includes determining a gradient of the performance variable with respect to the perturbed setpoint and a Hessian of the performance variable affected by the building equipment with respect to the setpoint. The method includes determining an adjustment to the setpoint predicted to drive the performance variable to an extremum based on the gradient and the Hessian of the performance variable.