Patents Assigned to Johnson Controls Technology
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Publication number: 20200072373Abstract: A pressure disturbance rejection valve assembly is provided. The valve assembly includes a valve, a flow rate sensor, and an actuator. The actuator includes a motor, a drive device configured to be driven by the motor and coupled to the valve for driving the valve within a range of positions, and a position sensor configured to measure a rotational position of the drive device. The actuator further includes a communications mechanism configured to receive a flow rate setpoint and a processing circuit. The processing circuit is configured to determine an actuator position setpoint using a feedback control mechanism based on the flow rate setpoint and the flow rate measurement, operate the motor to drive the drive device to the actuator position setpoint, detect a fault condition based at least in part on the rotational position measurement or the flow rate measurement, and perform a fault mitigation action in response to detection of the fault condition.Type: ApplicationFiled: August 28, 2018Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: Homero L. Noboa, Brennan Fentzlaff, Camille M. Aucoin, Carlos Felipe Alcala Perez
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Publication number: 20200076196Abstract: A building energy system for a building includes an energy storage system (ESS) configured to store energy received from an energy source and provide the stored energy to one or more pieces of building equipment to operate the one or more pieces of building equipment. The system includes a processing circuit configured to collect building data, determine whether to retrain a trained load prediction model based on at least some of the building data, retrain the trained load prediction model based on the building data in response to a determination to retrain the trained load prediction model, determine a load prediction for the building based on the retrained load prediction model, and operate the ESS to store the energy received from the energy source or provide the stored energy to the one or more pieces of building equipment to operate the one or more pieces of building equipment.Type: ApplicationFiled: August 28, 2018Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: Young M. Lee, William N. Schroeder
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Publication number: 20200073342Abstract: A building energy system includes an energy storage system (ESS) configured to store energy received from an energy source and provide the stored energy to one or more pieces of building equipment. The system includes a local building system configured to collect building data and communicate the building data to a cloud platform and the cloud platform configured to receive the building data from the local building system via the network, determine whether to retrain a trained load prediction model based on at least some of the building data, retrain the trained load prediction model based on at least some of the building data in response to a determination to retrain the trained load prediction model, determine a load prediction for the building based on the retrained load prediction model, and cause the local building system to operate.Type: ApplicationFiled: August 28, 2018Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: Young M. Lee, William N. Schroeder
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Publication number: 20200072543Abstract: A variable refrigerant flow system includes one or more outdoor units and a first indoor unit of a plurality of indoor units configured to receive refrigerant from the one or more outdoor units. The first indoor unit is configured to serve a first building zone. The variable refrigerant flow system also includes a user input device configured to receive a user command requesting heating or cooling of the first building zone by the first indoor unit. The variable refrigerant flow system also includes a controller configured to receive the command from the user input device, receive an indication of a current price of energy, in response to receiving the command generate a constraint on a capacity of the one or more outdoor units based on the current price of energy, and control the one or more outdoor units to operate in accordance with the constraint.Type: ApplicationFiled: September 5, 2018Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: Robert D. Turney, Liming Yang
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ENERGY MANAGEMENT SYSTEM WITH DRAGGABLE AND NON-DRAGGABLE BUILDING COMPONENT USER INTERFACE ELEMENTS
Publication number: 20200073526Abstract: A method includes generating, by a processing circuit, a building component tree for the graphical user interface, wherein the building component tree comprises one or more draggable building components and one or more non-draggable building components and causing, by the processing circuit, the graphical user interface to include the building component tree comprising the draggable building components and the non-draggable building components. The method includes receiving, by the processing circuit via the graphical user interface, a selection of one of the one or more draggable building components and a user interaction dragging the one of the one or more draggable building components into a window of the graphical user interface.Type: ApplicationFiled: August 28, 2018Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: Vipul Devre, Kaustubh S. Patil, Barkha Shah, Mukul V. Vashisth -
Publication number: 20200076694Abstract: Systems and methods for automatically configuring an Internet Protocol (IP) network are provided. The system can receive inputs including information specific to a building automation system (BAS) and information specific to the IP network. The system can identify network controllers and BAS devices supervised by the network controllers. The system can allocate BAS devices supervised by the network controllers to subnets and access switches. The system can consolidate two or more subnets under the same switch when determining that the two or more subnets can be consolidated under the same switch. The system can perform IP planning for the IP network and can generate a tailored configuration file for each access switch and aggregation switch in the IP network.Type: ApplicationFiled: January 11, 2019Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: Eric J. Drury, David E. Hoglund, Xin Zhang
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Publication number: 20200076735Abstract: A network system for interconnecting an operational technology (OT) network and an information technology (IT) network in a building. The network system includes an OT network, an IT network, and a network tool. The network tool is configured to obtain a current network configuration of a plurality of OT network switches in an OT network. The current network configuration includes at least one of the network addresses of the plurality of OT network switches and a routing table associated with the plurality of OT network switches. The network tool is further configured to update the routing table to route network traffic between the OT network and an IT network. The network tool is further configured to update the network addresses of the plurality of OT network switches to have network addresses within at least one subnet of the IT network.Type: ApplicationFiled: March 7, 2019Publication date: March 5, 2020Applicant: Johnson Controls Technology CompanyInventors: David E. Hoglund, Xin Zhang, Eric J. Drury
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Patent number: 10580097Abstract: A cascaded model predictive control system includes an inner controller and an outer controller. The outer controller determines an amount of power to defer from a predicted power usage to optimize a total cost of power usage. A power setpoint is calculated based on a difference between the predicted power usage and the amount of power to defer. The inner controller determines an operating setpoint for building equipment in order to achieve the power setpoint.Type: GrantFiled: November 9, 2017Date of Patent: March 3, 2020Assignee: Johnson Controls Technology CompanyInventors: Robert D. Turney, Michael J. Wenzel
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Patent number: 10578331Abstract: The present disclosure is directed to a method for controlling a system that includes a modular set having a plurality of variable frequency modular units. The method includes setting a load ratio range for the plurality of variable frequency modular units, inputting an energy adjustment amount, and setting different operations for the modular set based on the energy adjustment amount. During a first operation, a first frequency adjustment amount of a corresponding variable frequency modular unit is determined based on the energy adjustment amount and an operating position of the corresponding variable frequency modular unit. During a second operation, a second frequency adjustment amount of a corresponding variable frequency modular unit is determined based on the energy adjustment amount and the operating position of the variable frequency modular unit. The first operation or the second operation causes the variable frequency modular units to operate within the load ratio range.Type: GrantFiled: March 14, 2018Date of Patent: March 3, 2020Assignees: Johnson Controls Technology Company, York Guangzhou Air Conditioning and Refrigeration Co., Ltd.Inventors: Demao Yu, Shuang Wu
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Patent number: 10579023Abstract: A plant includes equipment that operate to affect a variable state or condition of the plant in response to a control signal. A feedback controller monitors a process variable received via a feedback signal from the plant and uses an error signal representing a setpoint error between the process variable and a setpoint to generate the control signal for the plant. An exponentially-weighted moving average (EWMA) calculator generates EWMA values based on the setpoint error. A normalized index generator uses the EWMA values to calculate a normalized performance index. A threshold generator generates a threshold based on a first alarm parameter ? representing a normalized magnitude of the setpoint error and a second alarm parameter ? representing a normalized duration that the setpoint error has persisted. An alarm manager generates an alarm in response to the normalized performance index crossing the threshold.Type: GrantFiled: December 21, 2018Date of Patent: March 3, 2020Assignee: Johnson Controls Technology CompanyInventors: Timothy I. Salsbury, Carlos Felipe Alcala Perez, Michael J. Ajax
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Publication number: 20200064003Abstract: A building management system (BMS) including device controllers configured to monitor and control one or more heating, ventilation, or air conditioning (HVAC) devices and to store and process time-series data associated with the HVAC devices. The BMS includes a BMS controller that is communicably coupled to the device controllers. The BMS controller is configured to generate and send one or more processing sub-requests to at least one of the device controllers based on a processing request requesting time-series data associated with an HVAC device. The BMS controller is configured to receive one or more processing results from the at least one of the device controllers and join the one or more processing results into a joined result. The BMS controller is configured to provide the joined result to a requesting entity. The device controllers are configured to receive and process processing sub-requests and send results to the BMS controller.Type: ApplicationFiled: November 1, 2019Publication date: February 27, 2020Applicant: Johnson Controls Technology CompanyInventors: Youngchoon Park, Sudhi Sinha
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Publication number: 20200068192Abstract: The present disclosure is a method for monitoring video devices of a plurality of buildings. The method comprises receiving video device data of a plurality of video devices of the plurality of buildings. The method further comprises determining a health state of each of the plurality of video devices based on video device data. The health state is a current state of the video device and includes an healthy state or an unhealthy state. The method also includes generating an alert in response to a determination that the health of one of the plurality of video devices is the unhealthy state and sending the alert to an external device. In response to the determination that the health of one of the plurality of video devices is the unhealthy state, the method includes automatically resolving the unhealthy state.Type: ApplicationFiled: August 21, 2019Publication date: February 27, 2020Applicant: Johnson Controls Technology CompanyInventor: Jason Pelski
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Publication number: 20200064004Abstract: An on/off system operates to affect a variable state or condition of a building by switching between an on state and an off state. An extremum-seeking controller operates the on/off system by providing a pulse width modulated (PWM) control signal having a duty cycle to the on/off system. The extremum-seeking controller is configured to generate the PWM control signal by receiving a performance variable as feedback from the on/off system, extracting a gradient of the performance variable with respect to the duty cycle, modulating the duty cycle using an extremum-seeking control technique to determine an optimal value of the duty cycle that drives the gradient toward zero, and generating the PWM control signal such that each period of the PWM control signal has a pulse width proportional to the duty cycle.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Applicant: Johnson Controls Technology CompanyInventor: Timothy I. Salsbury
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Patent number: 10573168Abstract: Systems and methods for alarm panel analysis include receiving a plurality of alarm events from the respective alarm panels monitoring corresponding buildings. An alarm analysis system may classify the alarm panels by identifying an alarm type for the alarm events. The alarm analysis system may determine a number of occurrences of each alarm type for the alarm panels, and generate a data point for a dataset for the alarm panels. The alarm analysis system may identify statistical dividers in the data points for the data set, which may be used for assigning a ranking for the alarm panels based on their location in relation to the statistical dividers. The alarm analysis system may construct and a monitoring dashboard which includes the rankings of the alarm panels, which may be rendered on a display to an end user.Type: GrantFiled: October 26, 2018Date of Patent: February 25, 2020Assignee: Johnson Controls Technology CompanyInventors: Abdul Razak, Gopi Subramanian, Michael C. Stewart
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Patent number: 10571304Abstract: An actuator in a HVAC system includes an inductive sensor, a conductive target, and a controller. The conductive target has multiple different portions that become aligned with the inductive sensor as a position of the actuator changes. Each of the multiple different portions have a different inductance. The controller receives a signal from the inductive sensor indicating an observed inductance of the portion of the conductive target aligned with the inductive sensor. The controller uses a stored relationship between the observed inductance and the position of the actuator to determine the position of the actuator based on the observed inductance. The controller operates the actuator to change the position of the actuator based on the determined position.Type: GrantFiled: October 21, 2016Date of Patent: February 25, 2020Assignee: Johnson Controls Technology CompanyInventors: Robert K. Alexander, Gary A. Romanowich, Russell T. Jenks, Cory C. Strebe, Kevin A. Weiss
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Patent number: 10571146Abstract: An air handling unit (AHU) or rooftop unit (RTU) in a building HVAC system includes one or more powered components, a battery, and a predictive controller. The powered components include a fan configured to generate a supply airstream provided to one or more building zones. The battery is configured to store electric energy and discharge the stored electric energy for use in powering the powered components. The predictive controller is configured to optimize a predictive cost function to determine an optimal amount of electric energy to purchase from an energy grid and an optimal amount of electric energy to store in the battery or discharge from the battery for use in powering the powered components at each time step of an optimization period.Type: GrantFiled: April 26, 2018Date of Patent: February 25, 2020Assignee: Johnson Controls Technology CompanyInventors: Robert D. Turney, Nishith R. Patel
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Patent number: 10571174Abstract: A system for heating a building via refrigerant includes a coil temperature sensor, an ambient temperature sensor, and a controller. The controller includes a processing circuit configured to record a system operating parameter and a control step of a control process before performing a sacrificial defrost cycle. The processing circuit is configured to cause the system to perform the sacrificial defrost cycle and operate the system at predefined system operating parameters other than the recorded system operating parameters. The system is configured to cause the system to operate at the recorded system operating parameters and generate calibration data in response to the sacrificial defrost cycle ending. The processing circuit is configured to cause the control process to operate at the recorded control step and cause the system to perform a defrost cycle based on the calibration data, the coil temperature, and the ambient temperature.Type: GrantFiled: January 26, 2017Date of Patent: February 25, 2020Assignee: Johnson Controls Technology CompanyInventors: Shawn A. Hern, Brian D. Rigg, Elton D. Ray, Jedidiah O. Bentz, Theresa N. Gillette, Tom R. Tasker, Shaun B. Atchison, Tyler McCune, Aneek M. Noor
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Publication number: 20200054909Abstract: A method for detecting an event in or around a building. The method includes recording a baseline signal characteristic that characterizes a wireless signal transmitted between devices in or around the building during a baseline time period and recording a second signal characteristic that characterizes the wireless signal during a second time period after the baseline time period. An event in or around the building is detected in response to a determination that the second signal characteristic is abnormal relative to the baseline signal characteristic, the event degrading the wireless signal during the second time period. An alarm is triggered in response to detecting the event.Type: ApplicationFiled: September 4, 2019Publication date: February 20, 2020Applicant: Johnson Controls Technology CompanyInventors: Craig E. Trivelpiece, Robert C. Hall, JR., Timothy C. Gamroth
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Patent number: D876260Type: GrantFiled: January 23, 2019Date of Patent: February 25, 2020Assignee: Johnson Controls Technology CompanyInventors: Joseph R. Ribbich, Julio A. Abdala, Juan Guillermo Alvarez, Felippe M. Bicudo, Vinosh C. Diptee, Patricia Ellis Douglass, Hao A. Nguyen, Claudio Santiago Ribeiro, Amit Verma
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Patent number: D876971Type: GrantFiled: February 18, 2019Date of Patent: March 3, 2020Assignee: Johnson Controls Technology CompanyInventors: Joseph R. Ribbich, Julio A. Abdala, Juan Guillermo Alvarez, Felippe M. Bicudo, Vinosh C. Diptee, Patricia Ellis Douglass, Hao A. Nguyen, Claudio Santiago Ribeiro, Amit Verma