Abstract: A heating, ventilation, and air conditioning (HVAC) system includes multiple circuit components that enable determining that a refrigerant leak is present in the HVAC system based on a signal. The circuit components then send a first set of instructions to a first set of control systems associated with one or more fans in response to the refrigerant leak being present. The first set of instructions causes the one or more fans to activate. The system then determines that the refrigerant leak signal is no longer present, and initiates a counter to detect when a period of time has passed in response to determining that the refrigerant leak signal is no longer present. The system then sends a second set of instructions to the first control system to cause the fans to return to base operating conditions in response to the counter indicating the period of time has passed.

Abstract: A controller for operating building equipment of a building including processors and non-transitory computer-readable media storing instructions that, when executed by the processors, cause the processors to perform operations including obtaining a first setpoint trajectory from a cloud computation system. The first setpoint trajectory includes setpoints for the building equipment or for a space of the building. The setpoints correspond to time steps of an optimization period. The operations include determining whether a connection between the controller and the cloud computation system is active or inactive at a time step of the optimization period and determining an active setpoint for the time step of the optimization period using either the first or second setpoint trajectory based on whether the connection between the controller and the cloud computation system is active or inactive at the time step. The operations include operating the building equipment based on the active setpoint.

Abstract: A system includes two stage HVAC equipment and processing circuitry configured to receive a call for conditioning and, in response to the call for conditioning, execute a recovery mode algorithm. The recovery mode algorithm is configured to determine an elapsed time between the call for conditioning and an ending of a recent cycle and compare the elapsed time to a threshold time period. The recovery mode algorithm is also configured to, in response to the elapsed time being below the threshold time period, determine a first stage up time based on a first function corresponding to the elapsed time being below the threshold time period. The recovery mode algorithm is also configured to, in response to the elapsed time meeting or exceeding the threshold time period, determine a second stage up time based on a second function corresponding to the elapsed time meeting or exceeding the threshold time period.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a base plate having a receptacle configured to receive a lifting lug, a bracket having a mounting plate coupled to the base plate proximate the receptacle, and a ledge of the bracket extending away from the mounting plate and offset from the receptacle such that a distal portion of the ledge is configured to block the lifting lug from contacting an outer surface of the HVAC unit when the lifting lug is in an engaged configuration with the receptacle.

Abstract: A building system operates to receive building data from one or more building data sources associated with the building, wherein at least a portion of the building data is associated with control of the one or more environmental conditions of the building and generate, based on the building data, one or more data quality indicators for the building data received from the one or more building data sources, the one or more data quality indicators indicating quality levels of the building data. The building system operates to generate user interface data configured to cause a user device to display a user interface providing indications of the one or more data quality indicators.

Abstract: A system that includes a heating, ventilation, and air conditioning (HVAC) system that includes a sensor system within the HVAC system. The refrigerant sensor system includes a refrigerant sensor that detects the presence of an amount of refrigerant in the HVAC system and a control system that receives the amount of refrigerant detected from the refrigerant sensor. The control system also determines the amount of refrigerant exceeds a threshold value. Additionally, the control system sends one or more output signals to one or more components that are configured to couple to one or more devices that are part of the HVAC system. The one or more components are configured to cause the one or more devices to adjust operations based on the state of the components. The sensor system also includes a housing that encloses the refrigerant sensor and control system.

Abstract: Systems and methods for building management utilizing adaptive edge processing are disclosed. The building system can store gateway components on storage devices. The gateway components can facilitate communication with a cloud platform and facilitate communication with a physical building device. The building system can identify a computing system of the building that is in communication with the physical building device. The physical building device can store one or more data samples. The building system can deploy the gateway components to the computing system responsive to identifying that the computing system is in communication with the physical building device. The gateway components can cause the computing system to communicate with the physical building device to receive the one or more data samples and cause the computing system to communicate the one or more data samples to the cloud platform.

Abstract: A controller is provided for building equipment including a plurality of devices that operate in parallel to affect an environmental condition of a building. The controller includes one or more processing circuits including 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. The operations include lowering an upper bound or raising a lower bound of one or more constraints based on a minimum off schedule or a minimum on schedule for the building equipment, performing an optimization of an objective function subject to the one or more constraints to generate control decisions for the building equipment, and operating the building equipment in accordance with the control decisions to affect the environmental condition of the building.

Abstract: Apparatus and methods for automatically detecting falling fluid include receiving one or more live video feeds from one or more cameras. The live video feeds are received concurrently. The live video feeds are analyzed to detect a fluid leak using a motion algorithm. False positives are reduced and sensitivity for the fluid leak detection is improved using information from one or more integrated systems, in response to detecting the fluid leak. A notification is generated to inform a user of the detected fluid leak, in response to detecting the fluid leak after reducing the false positives.

Abstract: A multi-tiered data storage system for building management system (BMS) data includes a plurality of data stores including a first data store and a second data store. The system further includes a data access router configured to provide a consistent endpoint for the BMS data to an application that provides or consumes the BMS data regardless of whether the BMS data is stored in the second data store or the first data store, obtain a requested data object of the BMS data from the second data store in response to a determination that the requested data object is available in the second data store, and obtain the requested data object from the first data store in response to a determination that the requested data object is not available in the second data store.

Abstract: A blower mounting assembly of a heating, ventilation, and/or air conditioning (HVAC) system includes a bracket assembly including a base panel, a plurality of mounting flanges extending from the base panel, and an alignment flange extending from and transverse to the base panel. The blower mounting assembly includes a first mounting aperture extending through the base panel in a first direction and includes second mounting apertures extending through the plurality of mounting flanges in a second direction transverse to the first direction. The blower mounting assembly includes a bolt configured to extend through and slidably engage with an aperture of the alignment flange and a blower mounting skid such that the bolt limits movement of the blower mounting skid relative to the bracket assembly. The aperture of the alignment flange extends through the alignment flange in a third direction transverse to the first mounting aperture and the second mounting apertures.

Abstract: An environmental building sensor, the environmental building sensor including a sensing device configured to measure an environmental condition of a building, an output connection between one or more circuits of the environmental building sensor and an external device, the output connection connected to an input impedance of the external device, and one or more circuits. The one or more circuits are configured to detect a feedback voltage, the feedback voltage based on the input impedance, determine, based on the feedback voltage, whether the external device is configured to receive an analog current input or an analog voltage input from the environmental building sensor, and generate the analog current input or the analog voltage input based on the environmental condition measured by the sensing device and provide the analog current input or the analog voltage input to the external device via the output connection.

Abstract: A system for controlling building equipment devices includes a processing circuit comprising a processor and memory storing instructions executed by the processor. The system is configured to generate a first combination profile indicating a number of active devices within each of one or more device groups according to a first combination of the building equipment devices, and generate a second combination profile indicating a number of active devices within each of the one or more device groups according to a second combination of the building equipment devices. The system is also configured to compare the first combination profile against the second combination profile to determine whether the first combination is redundant with the second combination, generate control decisions for the building equipment devices based on whether the first combination is redundant with the second combination, and operate the building equipment devices in accordance with the control decisions.

Abstract: A method for counting number of people in an image includes feeding an image into an object counting model to generate a first result for the image that is indicative of a number of human heads detected in one or more regions of the image. The image is fed into a regression model to generate a second result for the image that is indicative of a regression count of people detected in the one or more regions of the image. An estimate of people detected in the image is obtained based on the first result and the second result using one or more rules.

Abstract: A method for commissioning a variable air volume (VAV) system is shown. The method includes receiving instructions via an application on a user interface, the instructions provided over a wireless communications network. The method further includes determining that a cold commissioning testing sequence has been completed for the VAV system. The method further includes, in response to determining that the cold commissioning testing sequence has been completed, initiating a hot commissioning testing sequence. The method further includes performing the hot commissioning testing sequence. The method further includes providing a report of the hot commissioning testing sequence to the user interface.

Abstract: A universal gateway device includes a first network interface circuit and a second network interface circuit. The first network interface circuit is utilized to communicate over a first network associated with an Internet of Things (IoT) management system utilizing a first communications protocol. The second network interface circuit is utilized to communicate over a second network associated with an IoT device utilizing a second communications protocol that is different from the first communications protocol. The first network interface circuit generates a virtual device representation of the IoT device on the first network. The virtual device representation is utilized to communicate data from the IoT device over the first network utilizing the first communications protocol.

Abstract: Example implementations include a method, apparatus, and computer-readable medium comprising monitoring, by a control panel, an ambient noise via one or more microphones in the control panel. The implementations further include determining, by the control panel, whether the ambient noise is indicative of a security event. In some non-limiting implementations, the control panel may be configured to detect events based on various noise detection models, such as continued noise level above a threshold, noise associated with multiple short sharp impacts (e.g., an intruder trying to kick down a door), gunshot detection, voice recognition to identify a request for assistance (e.g., a person asking for help), glass break detection, or detection of a particular standardized pattern of beeps such as the temporal-three pattern of a smoke detector going off (according to ISO 8201 and ANSI/ASA S3.41 Temporal Pattern), the temporal-four pattern of a carbon monoxide detector going off, etc.

Abstract: A system includes a plurality of controllers associated with the plurality of units of building equipment, each controller comprising a plurality of communication ports, a plurality of cables connected to the plurality of communication ports and linking together the plurality of controllers, wherein the plurality of controllers are configured to self-identify a break in a connection between two the plurality of controllers by monitoring statuses of the plurality of communication ports. The system also includes circuitry configured to receive a signal indicative of the order of the connections between the plurality of controllers from the plurality of controllers, generate a graphical map of the order of the connections between the plurality of controllers based on the signal, receive, from the plurality of controllers, an indication of a break in a connection between two of the plurality of controllers, and update the graphical map to indicate the connection as broken.

Abstract: One implementation of the present disclosure is a controller for a variable refrigerant flow system. The controller includes processors and memory storing instructions that, when executed by the processors, cause the processors to perform operations including identifying zones within a structure, generating zone groupings defining zone groups and specifying which of the zones are grouped together to form each of the zone groups, generating metric of success values corresponding to the zone groupings and indicating a control feasibility of a corresponding zone grouping, selecting a zone grouping based on the metric of success values, and using the selected zone grouping to operate equipment of the variable refrigerant flow system to provide heating or cooling to the zones.

Abstract: Disclosed herein are a system, method, and non-transitory computer readable medium for operating an energy plant. In one aspect, a system determines a ratio of flow rates between devices of the energy plant connected in parallel with each other in a branch. The system generates a candidate set of operating parameters of the devices according to the ratio of flow rates. The system predicts thermodynamic states of the devices operating according to the candidate set of operating parameters. The system determines whether the predicted thermodynamic states satisfy constraints of the devices. The system determines whether the predicted thermodynamic states satisfy a target thermal energy load of the branch based on the ratio of the flow rates. The system operates the energy plant according to the candidate set of operating parameters, in response to determining that the predicted thermodynamic states satisfy the constraints and the target thermal energy load.