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 manufacturing a heat exchanger includes providing a first slab having a first plurality of tubes extending from a first end to a second end of the first slab along a first length of the first slab. The method includes providing a second slab having a second plurality of tubes extending from a third end to a fourth end of the second slab along a second length of the second slab. The method includes positioning a first face of the first slab adjacent to a second face of the second slab in a side-by-side configuration and securing a connector to the first end of the first slab and to the third end of the second slab in the side-by-side configuration. The method includes bending the first slab and the second slab together in the side-by-side configuration to form a bent configuration of the heat exchanger.

Abstract: An air mixing system for a heating, ventilation, and air conditioning (HVAC) system includes a conduit configured to receive a first airflow and a second airflow and to discharge the first airflow and the second airflow as a mixed airflow via an outlet of the conduit. The air mixing system also includes a thermal wheel disposed within the conduit. The thermal wheel is configured to direct the first airflow and the second airflow thereacross, rotate within the conduit, and transfer heat between the first airflow and the second airflow.

Abstract: A method includes providing a net consumption trajectory comprising net consumption targets for one or more subperiods of a time period. Each net consumption target indicates a target difference from a beginning of a time period to an end of the subperiod between total consumption and total production or offset. The method also includes generating, for a subperiod of the plurality of subperiods, a set of curtailment actions predicted to achieve the net consumption target for the subperiod and implementing the set of curtailment actions.

Abstract: A thermostat for a building zone includes at least one of a model predictive controller and an equipment controller. The model predictive controller is configured to obtain a cost function that accounts for a cost of operating HVAC equipment during each of a plurality of time steps, use a predictive model to predict a temperature of the building zone during each of the plurality of time steps, and generate temperature setpoints for the building zone for each of the plurality of time steps by optimizing the cost function subject to a constraint on the predicted temperature. The equipment controller is configured to receive the temperature setpoints generated by the model predictive controller and drive the temperature of the building zone toward the temperature setpoints during each of the plurality of time steps by operating the HVAC equipment to provide heating or cooling to the building zone.

Abstract: A conduit support assembly for a heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system includes a bracket having a base portion and a tab portion. The base portion includes a channel formed therein, the channel is configured to receive a conduit of the HVAC&R system, the tab portion is configured to be inserted through an opening in a panel of the HVAC&R system, and the base portion and the tab portion are configured to cooperatively capture the panel in an installed configuration of the conduit support assembly.

Abstract: A system includes a plurality of first building components, a private local blockchain, a second building component, and a client device. The private local blockchain includes a device ledger indicating each first building component, a transaction ledger maintaining a plurality of blocks corresponding to a transaction between at least two first building components and including at least one first unique identifier of the corresponding first building component and a timestamp of the transaction, a transaction processor that generates at least one block by executing a predetermined hash function using a previous block, and a local rule engine defining rules to evaluate a transaction. The second building component has at least one second unique identifier. The client device provides the at least one second unique identifier to the private local blockchain. The private local blockchain determines whether to add the second building component to the device ledger.

Abstract: Example implementations include a method, apparatus and computer-readable medium for adjusting bandwidth in video networks, comprising monitoring a video network comprising a plurality of cameras and a network video recorder (NVR). The implementations include receiving, at a first time, a first plurality of network parameters associated with data transmitted from each of the plurality of cameras and a second plurality of network parameters associated with data received by the NVR. The implementations include identifying, using a plurality of rules, a discrepancy between the first plurality of network parameters and the second plurality of network parameters. The implementations further include transmitting, to the at least one camera, an instruction to adjust a peak bandwidth limit of the at least one camera to a new value, in response to identifying the discrepancy.

Abstract: A method for operating a temperature control system having a cooling system and ventilation system to vent outside air within a structure is disclosed.

Abstract: A silencer module for an air handling unit includes a first baffle and a second baffle spaced apart from the first baffle to form an air channel between the first baffle and the second baffle. The air channel is configured to receive a fluid flow and direct the fluid flow through the silencer module. The silencer module also includes a reactive acoustic feature formed in the first baffle. The reactive acoustic feature includes an attenuation profile configured to reduce propagation of tonal acoustic waves through the air channel.

Abstract: A method including training, by one or more processors, a generative AI model using first operating data from building equipment and a plurality of first service reports indicating a plurality of first problems associated with the building equipment. The method may include predicting, by the one or more processors using the generative AI model, one or more future problems likely to occur with the building equipment based on second operating data from the building equipment. The method may include automatically initiating, by the one or more processors, one or more actions to prevent the one or more future problems from occurring or mitigate an effect of the one or more future problems.

Abstract: A method of generating a fault determination in a building management system (BMS), the method including receiving signal data, generating, using a number of fault detection models, a number of fault indications based on the signal data, generating, using a weighting function, based on the number of fault indications, a fault score, comparing the fault score to a fault value, and determining, based on the comparison, an existence of a fault.

Abstract: A method includes providing a control algorithm that may include a constraint constraining production of the equipment below maximum values for a plurality of time steps, and dynamically adjusting the constraint by updating the maximum values as a function of predicted values of a dynamic variable for the plurality of time step. The dynamic variable affects an actual maximum production of the equipment. The method includes determining control decisions for the plurality of time steps by executing the control algorithm and controlling the equipment in accordance with the control decisions.

Abstract: A method for providing access into a building is shown. The method includes receiving an indication that a potential building occupant is requesting access into the building. The method includes providing input data into a probabilistic model, the input data comprising current health data of the potential building occupant obtained in response to receiving the indication. The method includes analyzing, via the probabilistic model, relationships between a plurality of weighted variables within the probabilistic model to determine an entry decision for the potential building occupant, wherein each of the plurality of weighted variables are representative of subsets of the input data. The method includes, in response to the entry decision permitting the building occupant to enter the building, providing a control signal to a security system to permit access to the building for the building occupant.

Abstract: A method of selecting building equipment for serving a building including determining one or more hard constraints and one or more soft constraints for the building equipment, determining a plurality of possible combinations of building equipment to serve the building, determining a first set of possible combinations that meet all of the hard constraints and all of the soft constraints, determining a second set of possible combinations that meet all of the hard constraints and do not meet all of the soft constraints, selecting a combination of building equipment to serve the building from the first set of possible combinations if the first set contains a possible combination, or selecting a combination of building equipment to serve the building from the second set of possible combinations if the first set contains no possible combinations, and serving the building using the selected combination of building equipment.

Abstract: An access control system includes a plurality of sensors and an access controller that includes one or more processors. The sensors detect sensor data regarding a user. The one or more processors receive credential data regarding the user from at least one of an access control device and an electronic wallet, evaluate a medical status using at least one of the sensor data and the credential data, validate access into a space responsive to the medical status being satisfied, and update a record data structure of at least one of the electronic wallet and a distributed ledger using the evaluation of the medical status.

Abstract: A model predictive maintenance (MPM) system for building equipment includes one or more processing circuits having one or more processors and memory. The memory store instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including estimating a degradation state of the building equipment, using a degradation impact model to predict an amount of one or more input resources consumed by the building equipment to produce one or more output resources based on the degradation state of the building equipment, generating a maintenance schedule for the building equipment based on the amount of the one or more input resources predicted by the degradation impact model, and initiating a maintenance activity for the building equipment in accordance with the maintenance schedule.

Abstract: A self-orienting sensing system for a heating, ventilation, and air conditioning (HVAC) system includes a housing having a main body. The housing defines a sensing aperture in a first portion of the main body and a mounting channel in a second portion of the main body. The self-orienting sensing system includes a sensing element retained within the housing. The sensing element is configured to detect leaked refrigerant that enters the housing via the sensing aperture. The self-orienting sensing system also includes a mounting retainer configured to extend through the mounting channel and couple the housing to an interior surface of an air handling enclosure of the HVAC system. The mounting retainer enables the mounting channel to rotate about the mounting retainer to automatically align the sensing aperture in a target sensing orientation based on a weight of the housing under the force of gravity.

Abstract: Disclosed herein are an apparatus, method, and computer-readable medium for detecting an anomalous behavior event for an environment and transmitting an alert of the event. An implementation may comprise detecting, in a plurality of image frames captured by a camera, when a person enters a region of interest, tracking movements of the person in the region of interest by comparing images of the person in the plurality of image frames, determining attributes of the person, determining environmental contexts for the region of interest, determining whether or not an anomalous behavior is detected based on the movements and the attributes of the person and the environmental contexts, generating an alert when the anomalous behavior is detected, and transmitting the generated alert to user devices of one or more predetermined recipients.

Abstract: Example implementations include a method, apparatus, and computer-readable medium for controlling access to a location, comprising receiving an access identifier and a biometric information sample from a user attempting to enter an access point. The implementations further include matching the access identifier to an authenticated cluster identifier corresponding to a biometric information cluster within a plurality of different biometric information clusters, wherein the biometric information cluster is associated with an authenticated user. Additionally, the implementations further include identifying, based on a machine learning model processing, a cluster identifier from the biometric information sample.