Abstract: A building automation system (BAS) includes building equipment located within a building and a BAS network configured to facilitate communications between the building equipment. The building equipment operate to affect a variable state or condition within the building. The BAS includes a BAS-BIM integrator configured to receive BAS points from the BAS network and to integrate the BAS points with a building information model (BIM). The BIM includes a plurality of BIM objects representing the building equipment. The BAS includes an integrated BAS-BIM viewer configured to use the BIM with the integrated BAS points to generate a user interface. The user interface includes a graphical representation of the BIM objects and the BAS points integrated therewith.

Abstract: A building energy management includes building equipment, one or more data platform services, a timeseries database, and an energy management application. The building equipment operate to monitor and control a variable and provide raw data samples of a data point associated with the variable. The timeseries database stores a plurality of timeseries associated with the data point. The plurality of timeseries include a timeseries of the raw data samples and the one or more optimized data timeseries generated by the data platform services based on the raw data timeseries. The energy management application generates an ad hoc dashboard including a widget and associates the widget with the data point. The widget displays a graphical visualization of the plurality of timeseries associated with the data point and includes interactive user interface options for switching between the plurality of timeseries associated with the data point.

Abstract: A building energy management includes building equipment, one or more data platform services, a timeseries database, and an energy management application. The building equipment operate to monitor and control a variable and provide raw data samples of a data point associated with the variable. The timeseries database stores a plurality of timeseries associated with the data point. The plurality of timeseries include a timeseries of the raw data samples and the one or more optimized data timeseries generated by the data platform services based on the raw data timeseries. The energy management application generates an ad hoc dashboard including a widget and associates the widget with the data point. The widget displays a graphical visualization of the plurality of timeseries associated with the data point and includes interactive user interface options for switching between the plurality of timeseries associated with the data point.

Abstract: A building device including one or more memory devices configured to store instructions thereon, that, when executed by one or more processors, cause the one or more processors to implement a software gateway configured to receive one or more messages from building equipment, receive, based on the one or more messages, one or more software updates for the software gateway, wherein the one or more software updates are updates for communicating with the building equipment, communicate with the building equipment based on the one or more software updates and receive data describing the building equipment, and cause a configuration image to be generated for the software gateway based on the data describing the building equipment, the configuration image indicating a configuration of the software gateway for performing one or more gateway services.

Abstract: A system for distributing targeted alerts to building occupants includes building equipment and a targeted alert system. The building equipment are configured to detect an event within a building and generate an alert identifying the event. The targeted alert system is configured to receive the alert from the building equipment, identify a location within the building of each of a plurality of building occupants, identify a role performed by each of the plurality of building occupants, select one or more of the building occupants to receive the alert based on at least one of the location of each building occupant and the role performed by each building occupant, and distribute the alert to the selected building occupants.

Abstract: The present disclosure is directed to a system for a heating, ventilating, and air conditioning (HVAC) system includes a control system of the HVAC system, a user device configured to be communicatively coupled to the control system and receive feedback indicative of a lock out event of the HVAC system, where the lock out event is configured to effectuate at least a partial shutdown of the HVAC system, and a dealer device configured to receive authorization from the user device to remotely clear the lock out event of the HVAC system, where the dealer device is configured to remotely clear the lock out event upon receiving the authorization from the user device.

Abstract: A sealed induction motor for a chiller assembly is provided. The induction motor includes a stator, a rotor, and a shaft with a first end and a second end. The rotor and the shaft are configured to rotate relative to the stator. The induction motor further includes a first magnetic bearing assembly located proximate the first end of the shaft and a second magnetic bearing assembly located proximate the second end of the shaft. The first and the second magnetic bearing assemblies are configured to support the shaft. The shaft is coupled to a centrifugal compressor using a direct drive connection.

Abstract: 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.

Abstract: A system for reducing power consumption in a wireless network includes a station (e.g., Wi-Fi sensor) and an access point in wireless communication with the station. The station has at least a low-power sleep mode and an active mode. The system can be configured to assign a static Internet Protocol (IP) address to the station and disable re-negotiation of an encryption key while the station is in sleep mode. The system can further be configured to force the station to communicate via 802.11g and to transmit data to a proxy service while in active mode before returning to sleep mode upon receiving a response from the proxy service. Further, an association timeout period associated with the station can be configured to be at least twice as long as a wake-up period associated with the station.

Abstract: A building system for implementing user defined logic includes one or more memory devices configured to store instructions thereon, that, when executed by one or more processors, cause the one or more processors to receive user input from a user device, the user input providing a natural language description of a building logic application for a piece of building equipment. The instructions cause the one or more processors to retrieve a semantic logic application comprising a semantic description of the building logic application based on the natural language description and a semantic building model comprising a semantic building description of the piece of building equipment, generate a custom logic application based on the semantic logic application, the natural language description, and the semantic building model, and operate the custom logic application.

Abstract: A controller configured to provision on a surface of an environment includes a projector configured to project light for a user interface through an opening in the surface, wherein the projector is located on a first side of the surface. The controller includes a waveguide located within the opening of the surface, wherein the waveguide is configured to transmit the light from the projector through the opening in the surface. The controller further includes a direction element located on a second side of the surface, wherein the direction element is configured to direct the light from the projector to a user.

Abstract: A building system including one or more memory devices configured to store instructions thereon, wherein the instructions, when executed by one or more processors, cause the one or more processors to cause a user interface of a user device to display a plurality of nodes of a semantic building model and a plurality of relationships between the plurality of nodes of the semantic building model. The instructions cause the one or more processors to receive a search input from the user device, generate a search result based on the search input, wherein the search result comprises an indication of a portion of nodes of the plurality of nodes and a portion of relationships of the plurality of relationships, and cause the user interface to display the portion of nodes of the plurality of nodes and the portion of relationships of the plurality of relationships.

Abstract: A building interface system for generating a custom user interface, the building interface system includes one or more memory devices configured to store instructions thereon, the instructions causing one or more processors to receive user input defining one or more graphical requirements from a user device, retrieve a semantic building system model based on the one or more graphical requirements, wherein the semantic building system model comprises semantic information describing a building system, retrieve one or more graphic templates based on the semantic building system model and the one or more graphical requirements, the one or more graphic templates providing a generic description of one or more user interface elements, generate the custom user interface based on the one or more graphic templates and the semantic building system model, and cause the user device to display the custom user interface.

Abstract: An on-off control system includes on-off equipment configured to operate in either an on state or an off state, an on-off controller configured to cause the equipment to transition between the on state and the off state based on a setpoint value and a deadband value to drive a control variable toward the setpoint value, and a deadband controller, according to some embodiments. In some embodiments, the deadband controller is configured to generate the deadband value used by the on-off controller. In some embodiments, the deadband controller is configured to generate the deadband value by obtaining a cost function that defines a cost based on at least a set of control values and the deadband value and selecting the deadband value that results in an optimal value of the cost function over a range of possible deadband values, the selected deadband value defining an optimal deadband value.

Abstract: A thermostat for a building includes a halo light emitting diode (LED) system including one or more LEDs configured to emit light and a halo diffuser structured around at least a portion of an outer edge of the thermostat. The halo diffuser is configured to diffuse the emitted light of the one or more LEDs around at least the portion of the outer edge of the thermostat. The thermostat includes a processing circuit configured to receive one or more data streams, determine whether the one or more data streams indicate a building emergency condition, and operate the one or more LEDs of the halo LED system to indicate the building emergency condition to a user.

Abstract: An actuator is usable in an airside system, waterside system, building management system, or HVAC system. The actuator includes a housing. The housing includes an enclosure having an interior surface with a channel. The channel includes a ledge portion. The channel extends through the enclosure. The actuator includes a yoke having a notch located on an external surface of the yoke. The actuator includes a locking mechanism including a ring having a tab. The tab is defined by a width of the channel and a width of the notch. Following assembly, the yoke is positioned in the enclosure such that the notch rests upon the ledge portion. Additionally, the locking mechanism is positioned on an opposite side of the enclosure with the tab positioned in the channel adjacent to the notch. As a result, the locking mechanism inhibits movement of the yoke relative to the enclosure.

Abstract: A building system for implementing building applications includes one or more memory devices storing instructions, the instructions causing one or more processors to receive a static semantic building application, wherein the static semantic building application comprises one or more operations and a first semantic description of the static semantic building application and determine, based on building information describing a building and the first semantic description of the static semantic building application, one or more implementation details of a particular implementation of the static semantic building application. The instructions cause the one or more processors to generate, based on the one or more implementation details, a dynamic semantic building application comprising the one or more operations and a second semantic description of the dynamic semantic building application and operate the dynamic semantic building application.

Abstract: A variable refrigerant flow (VRF) system for a building. The VRF system includes at least one outdoor VRF unit configured to heat or cool a refrigerant for use in heating or cooling the building. The at least one outdoor VRF unit includes a sub-cooler and a bypass expansion valve configured to control a flow of the refrigerant through the sub-cooler and an extremum-seeking controller configured to generate a sub-cooling temperature setpoint for the at least one outdoor VRF unit. The extremum-seeking controller is configured to determine a total power consumption of the at least one outdoor VRF unit, generate a sub-cooling temperature setpoint for the at least one outdoor VRF unit using an extremum-seeking control technique that drives the total power consumption toward an extremum, and use the sub-cooling temperature setpoint to operate the at least one outdoor VRF unit.

Abstract: A thermostat for a building includes a halo light emitting diode (LED) system including one or more LEDs configured to emit light and a halo diffuser structured around at least a portion of an outer edge of the thermostat. The halo diffuser is configured to diffuse the emitted light of the one or more LEDs around at least the portion of the outer edge of the thermostat. The thermostat includes a processing circuit configured to receive one or more data streams, determine whether the one or more data streams indicate a building emergency condition, and operate the one or more LEDs of the halo LED system to indicate the building emergency condition to a user.