Building management system with virtual points and optimized data integration

    公开(公告)号:US11119458B2

    公开(公告)日:2021-09-14

    申请号:US16687011

    申请日:2019-11-18

    Abstract: A building management system (BMS) includes building equipment, a data collector, a sample aggregator, and an application. The building equipment is operable to monitor and control a variable in the BMS and to provide raw data samples of the variable. The data collector is configured to collect the raw data samples from the building equipment and generate a raw data timeseries including a plurality of the raw data samples. The sample aggregator is configured to automatically generate a data rollup timeseries including a plurality of aggregated data samples. The aggregated data samples are generated by aggregating the raw data samples as the raw data samples are collected from the building equipment. Both timeseries are stored in a timeseries database. The application is configured to retrieve the raw data timeseries and the data rollup timeseries from the timeseries database in response to a request for timeseries data associated with the variable.

    SYSTEMS AND METHODS FOR ACTUATOR INSTALLATION AUTO-VERIFICATION

    公开(公告)号:US20210280041A1

    公开(公告)日:2021-09-09

    申请号:US17331236

    申请日:2021-05-26

    Abstract: An actuator in an HVAC system is provided. The actuator includes a motor and a drive device. The drive device is driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions. The actuator further includes a processing circuit. The processing circuit is coupled to the motor and configured to transmit control signals to operate the motor to drive the HVAC component between a first position and a second position, monitor temperature data received from one or more temperature sensors, determine that the temperature data does not meet an expected performance criterion and transmit an alarm signal.

    Display device with halo
    154.
    发明授权

    公开(公告)号:US11107390B2

    公开(公告)日:2021-08-31

    申请号:US16246447

    申请日:2019-01-11

    Abstract: A display device includes a front portion, a rear portion, a halo, and sides extending between the front portion and the rear portion. The front portion, the rear portion, and the sides form an enclosure. The halo includes a rim and an internal structure. The rim is positioned between the front portion and the rear portion. The internal structure is at least partially within the enclosure and includes a sweep portion and a receiving post. The receiving post and the sweep portion are configured to receive light emitted by one or more light emitting devices and at least one of guide, direct, diffuse, focus, and scatter light emitted by the one or more light emitting devices out of the display device.

    Heating, ventilation, and air conditioning system with primary and secondary heat transfer loops

    公开(公告)号:US11105539B2

    公开(公告)日:2021-08-31

    申请号:US15890120

    申请日:2018-02-06

    Abstract: The present disclosure relates to a heating ventilation and air conditioning (HVAC) system. The system includes a primary heat transfer loop configured to be disposed at least partially outside of a building, and the primary heat transfer loop includes a heat exchanger, a compressor configured to compress a refrigerant, where the refrigerant is reactive, a condenser configured to receive and condense the refrigerant, and an expansion device configured to reduce a temperature of the refrigerant. The system further includes a secondary heat transfer loop configured to circulate a two-phase fluid at least partially inside the building, wherein the two-phase fluid is less reactive than the refrigerant. The secondary heat transfer loop includes the heat exchanger, where the heat exchanger is configured to transfer energy from the two-phase fluid circulating in the secondary heat transfer loop to the refrigerant, and an evaporator configured to evaporate the two-phase fluid by exchanging energy with an air supply stream flowing across the evaporator.

    Building equipment controller with user-configureable inputs and outputs

    公开(公告)号:US11105527B2

    公开(公告)日:2021-08-31

    申请号:US16235316

    申请日:2018-12-28

    Abstract: A controller includes a plurality of configurable input ports, a plurality of configurable output ports, and a configuration circuit. The configuration circuit is configured to provide a graphical user interface configured to facilitate a user in inputting an equipment description, determine a controller configuration based on the equipment description, configure the plurality of configurable input ports in accordance with the controller configuration, configure the plurality of configurable output ports in accordance with the controller configuration, and enable a set of control logic based on the controller configuration. The controller also includes an online control circuit configured to receive inputs via the plurality of configurable input ports, generate outputs based on the inputs and the set of control logic, and provide the outputs to building equipment via the plurality of configurable output ports.

    Building alarm system with bayesian event classification

    公开(公告)号:US11100788B2

    公开(公告)日:2021-08-24

    申请号:US16667036

    申请日:2019-10-29

    Abstract: An alarm management system includes a plurality of data sources configured to provide data relating to an event at a building and a processing circuit. The processing circuit is configured to receive the data from the data sources, apply a Bayesian network model to the data to generate a probability score for each of a plurality of possible causes of the event, identify the most probable cause of the event as a first cause of the plurality of possible causes having a highest probability score, execute an action with respect to the identified most probable cause of the event.

    Building management system with automatic comfort constraint adjustment

    公开(公告)号:US11098921B2

    公开(公告)日:2021-08-24

    申请号:US16516076

    申请日:2019-07-18

    Abstract: An HVAC system for automatically adjusting setpoint boundaries of a space includes building equipment configured to provide heating or cooling to the space to affect an environmental condition of the space and a controller. The controller obtains occupant setpoint adjustment data indicating occupant setpoint increases or occupant setpoint decreases at multiple times during a time interval and partitions the occupant setpoint adjustment data into time period bins based on the multiple times associated with the occupant setpoint adjustment data, each of the time period bins containing occupant setpoint adjustment data characterized by a common time attribute. The controller determines a number of occupant setpoint increases and a number of occupant setpoint decreases indicated by the occupant setpoint adjustment data within each time period bin and adjusts a setpoint boundary of the space based on the number of occupant setpoint increases or the number of occupant setpoint decreases.

    HVAC system design and operational tool for building infection control

    公开(公告)号:US11098920B2

    公开(公告)日:2021-08-24

    申请号:US16927766

    申请日:2020-07-13

    Abstract: A heating, ventilation, or air conditioning system (HVAC) design and operational tool includes 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 including obtaining a dynamic temperature model and a dynamic infectious quanta model for one or more building zones, determining an infection probability, and performing a plurality of simulations for a plurality of different equipment configurations using the dynamic temperature model, the dynamic infectious quanta model, and the infection probability to generate results. The operations include generating, using the results of the plurality of simulations, at least one of design including one or more recommended design parameters data or operational data including one or more recommended operational parameters for the HVAC system and initiating an automated action using at least one of the design data or the operational data.

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