Abstract: A system for building management system commissioning on an application includes one or more memory devices configured to store instructions that, when executed by one or more processors, cause the one or more processors to host a building management system commissioning workflow on an application server; provide data indicating commissioning activities defined by the building management system commissioning workflow from the application server to a user device for display on a user interface; dynamically update a commissioning activity status of the commissioning activities in the building management system commissioning workflow hosted on the application server responsive to data received at the application server from at least one of the user device or a remote device at the building site communicatively connected to the application server; and initiate an automated action based on the commissioning activity status of the commissioning activities in the building management system commissioning workflow app

Abstract: A method for initiating and automatically improving model-driven operations in a low-data scenario includes creating a regression model using pre-operation data prior to initiating the model-driven operations, using the regression model to initiate and perform the model-driven operations during an operational stage, collecting operational data during the operational stage, creating a first artificial neural network model using the operational data, transitioning from using the regression model to perform the model-driven operations to using the first artificial neural network model to perform the model-driven operations responsive to the operational data satisfying a first sufficiency threshold.

Abstract: A method for automatically detecting and mitigating risks related to cybersecurity in a Building Management System (BMS) includes evaluating settings of a user account of the BMS; identifying a security risk associated with the settings of the user account; evaluating settings of a network device of the BMS; identifying another security risk associated with the settings of the network device, presenting a user interface, wherein the user interface allows a user to view a policy recommendation associated with either security risk; and implementing the change in the settings of the user account or a change in the settings of the network device based at least in part on an input from the user via the user interface or an automated response to the policy recommendation. The method allows for administrators to easily view and change settings of user accounts and network devices to improve the cybersecurity of the BMS.

Abstract: A building system including one or more memory devices having instructions stored thereon, that, when executed by one or more processors, cause the one or more processors to receive an event from an event source, the event comprising data and a timestamp. The building system operates to identify first contextual data describing the event in a digital twin, the digital twin comprising a virtual representation of a building, enrich the event with the first contextual data, and provide the enriched event to a consuming system, the consuming system generating an output event based on the enriched event. The building system operates to identify second contextual data describing the output event in the digital twin, enrich the output event with the second contextual data, and provide the enriched output event to the consuming system or another consuming system.

Abstract: Example aspects include techniques for efficient updates in IoT event driven architectures. These techniques may include receiving, from a source application via a publish/subscribe broker service a first block using a first IoT messaging session, the first block including a first portion of a file and a first plurality of communication parameters, and transmitting a first acknowledgement corresponding to the first block, the first acknowledgement approving a proposed parameter of the first plurality of communication parameters. Further, the techniques may include receiving, based on the proposed parameter, from the source application via the publish/subscribe broker service, a second block using a second IoT messaging session, the second block including a second portion of the file and a second plurality of communication parameters, and transmitting a second acknowledgement corresponding to the second block.

Abstract: Disclosed herein is an object detection system, including apparatuses and methods for object detection. An implementation may include receiving a first image frame from an ROI detection model that generated a first ROI boundary around a first object detected in the first image frame and subsequently receiving a second image frame. The implementation further includes predicting, using an ROI tracking model, that the first ROI boundary will be present in the second image frame and then detecting whether the first ROI boundary is in fact present in the second image frame. The implementation includes determining that the second image frame should be added to a training dataset for the ROI detection model when detecting that the ROI detection model did not generate the first ROI boundary in the second image frame as predicted and re-training the ROI detection model using the training dataset.

Abstract: A multiple-circuit heating and cooling system includes a first refrigeration circuit having a first condenser and a first evaporator and a second refrigeration circuit having a second condenser and a second evaporator. The first condenser and the second condenser are arranged in a first row split configuration, and the second condenser is downstream of the first condenser relative to a first air flow directed across the second condenser and the first condenser. Additionally, the first evaporator and the second evaporator are arranged in a second row split configuration, and the first evaporator is downstream of the second evaporator relative to a second air flow directed across the first evaporator and the second evaporator.

Abstract: A terminal unit of a heating, ventilation, and/or air conditioning (HVAC) system includes a fan configured to provide an airflow through the HVAC unit by drawing the airflow into a fan inlet and expelling the airflow out of a fan outlet. The terminal unit also includes an inlet diffuser disposed upstream of the fan inlet relative to a direction of the airflow, wherein the inlet diffuser includes a first layer of perforated metal and a second layer of perforated metal disposed between the first layer of perforated metal and the fan inlet.

Abstract: A blower assembly includes a blower shelf having a first support channel. The blower shelf includes a guide bracket coupled to the blower shelf to form a second support channel. A blower housing having a flange is configured to extend into the first support channel and the second support channel. The blower assembly includes a control mounting panel configured to couple to the blower housing and having a tab extending therefrom. The flange of the blower housing is configured to engage with the first support channel and the second support channel during transition of the blower housing along a first direction and into an installed configuration of the blower housing and during transition of the blower housing along a second direction, opposite the first direction, and into an uninstalled configuration of the blower housing. The tab abuts the guide bracket in the installed configuration.

Abstract: A heating, ventilation, and air conditioning (HVAC) system for a building includes a plurality of actuation devices operable to affect one or more variables in the building, a plurality of sensors configured to measure the variables affected by the actuation devices, and a controller. The controller is configured to operate the actuation devices to affect one or more of the measured variables by providing an actuation signal to the actuation devices and to receive sensor response signals from the sensors. The sensor response signals indicate an effect of the actuation signal on the measured variables. For each of the sensor response signals, the controller is configured to calculate a similarity metric indicating a similarity between the sensor response signal and the actuation signal. The controller is configured to automatically establish a device pairing including one of the actuation devices and one of the sensors based on the similarity metrics.

Abstract: A mobile sensor for a building includes a sensor, and a wireless transceiver. The sensor is configured to measure an indoor air quality parameter in an air sample at a current location of the mobile sensor as the mobile sensor transports through the building. The wireless transceiver is configured to transmit the measurement of the indoor air quality parameter and an indication of the current location of the mobile sensor to a building controller.

Abstract: A building management system includes building equipment operable to affect a physical state of a building. The building management system includes a system manager coupled to the building equipment via a system bus, the system manager comprising a schedule manager configured to control an operation schedule of the building equipment. A client device is configured to communicate with the schedule manager to modify operation schedules of the building equipment or add new operation schedules for the building equipment. The schedule manager comprises a list of available schedules for the building equipment and is configured to, in response to modification of the operation schedules or addition of new operation schedules, update the list of available schedules to include the modification or the new operation schedule.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a refrigerant circuit configured to circulate a refrigerant to condition an air flow within an air flow conduit and a reheat system fluidly separate from the refrigerant circuit, wherein the reheat system is configured to utilize a waste fluid from a waste heat source to reheat the air flow conditioned by the refrigerant circuit.

Abstract: A method for providing filtered air to a zone of a building includes operating an air handler to pass unfiltered air through a filter and output filtered air to the zone of the building. The method includes determining an amount of filtered air provided to the zone of the building by the air handler. The method includes determining if additional air filtration is required to satisfy at least one of a desired amount of clean airflow or a desired reduction of a risk of infection. The method includes activating an in-zone filtration device and operating the in-zone filtration device to draw air from the zone into an inner volume, filter the air, and recirculate the filtered air to the zone of the building in response to determining additional air filtration is required.

Abstract: A lifting lug for a heating, ventilation, and/or air conditioning (HVAC) unit includes a first flange configured to be secured against a surface of the HVAC unit, a second flange configured to be secured against the surface of the HVAC unit, and an intermediate portion extending between the first flange and the second flange. The intermediate portion is offset from the first flange and the second flange to form a space between the intermediate portion and the surface of the HVAC unit in an installed configuration of the lifting lug, and the intermediate portion includes an edge and a notch formed in the edge and through a thickness of the intermediate portion.

Abstract: Systems and methods for automatically commissioning and operating a heating, ventilation, or air conditioning (HVAC) system for a building site are provided. An exemplary method includes constructing a model using physical equipment of the HVAC system and relationships between the physical equipment. The model indicates connections between the physical equipment and one or more resources produced or consumed by the physical equipment. The method includes generating a mapping between points of the physical equipment at the building site and corresponding variables of the model, using the model to generate values of one or more control variables of the model, and operating the physical equipment by providing the values of the control variables to corresponding points of the physical equipment based on the mapping.

Abstract: A method of ranking recommendations comprising receiving a recommendation to improve space utilization of a space, retrieving context data associated with the space, the context data including data describing previous user interest in other recommendations related to the recommendation and at least one of: data describing a current space utilization for the space, data describing a number of recommendations that are associated with the space, data describing environmental preferences of first individuals associated with the space or a building including the space, or data describing an organizational grouping of second individuals associated with the space or the building, calculating a score for the recommendation based on the previous user interest and the at least one of: the current space utilization, the number of recommendations, the environmental preferences, or the organizational grouping, and performing an action based on the score using at least one of the score or the recommendation.

Abstract: A building management system (BMS) operates a plurality of HVAC devices to affect a physical state or condition and detects a fault condition at a second HVAC device affected by the physical state or condition and having causal relationships with the plurality of HVAC devices such that faulty operation of one or more of the plurality of HVAC devices causes a detectable effect at the second HVAC device. The BMS identifies, based on the fault condition, a predetermined set of system parameters corresponding to the fault condition and comprising a plurality of system parameters of the plurality of HVAC devices that are potential causes of the fault condition. The BMS retrieves operating data for the predetermined set of system parameters and transmits a signal to display a user interface comprising the operating data on a display screen.

Abstract: A method of operating a building management system is disclosed. The method includes determining, by a processing circuit, policy rankings for a plurality of control policies based on building operation data of a first previous time period, selecting, by the processing circuit, a set of control policies from among the plurality of control policies based on the policy rankings of the set of control policies satisfying a ranking threshold, generating, by the processing circuit, a plurality of prediction models for the set of control policies, selecting, by the processing circuit, a first prediction model of the plurality of prediction models based on building operation data of a second previous time period, and responsive to selecting the first prediction model, operating, by the processing circuit, the building management system using the first prediction model.