Abstract: A building management system includes one or more computer-readable storage media having instructions stored thereon that, when executed by one or more processors, cause the one or more processors to receive a plurality of threats, the plurality of threats comprising a first threat and a second threat, the first threat and the second threat affecting a risk score of an asset and determine whether the first threat is correlated with the second threat. The instructions cause the one or more processors to determine a value of the risk score to be a first value in response to a determination that the first threat is correlated with the second threat and determine the value of the risk score to be a second value in response to a determination that the first threat is not correlated with the second threat.

Abstract: Systems and methods for predicting a plurality of thermodynamic states of a plurality of heat, ventilation, and air conditioning (HVAC) devices of an energy plant are disclosed. The system includes a processor and a non-transitory computer readable medium storing instructions when executed causing the processor to: obtain plant netlist data describing the plurality of HVAC devices of the energy plant and connections of the plurality of HVAC devices to corresponding nodes; identify, from the first reduced subset, a second reduced subset of the plurality of thermodynamic states to be predicted by propagating a known value of the plurality of thermodynamic states using a linear solver; predict the second reduced subset of the plurality of thermodynamic states using a non-linear solver; and determine the plurality of thermodynamic states of the energy plant at the plurality of nodes based on the predicted second reduced subset of the plurality of thermodynamic states.

Abstract: A shock tower assembly includes a shock tower body comprised of a polymer composite material, at least one reinforcement member integrated into the shock tower body, and a wheel cover comprised of the polymer composite material and integrated into the shock tower body to form a single-piece component.

Abstract: A thermostat for a building space. The thermostat includes a communications interface and a processing circuit. The communications interface is configured to engage in bidirectional communications with heating, ventilation, or air conditioning (HVAC) equipment and to receive an indication of a current heating or cooling load from the HVAC equipment. The processing circuit is configured to determine an occupancy of the building space based on the indication of the current heating or cooling load received from the HVAC equipment. The processing circuit is further configured to operate the HVAC equipment based on the determined occupancy of the building space.

Abstract: A system for monitoring and controlling flow rate of a fluid through a valve is disclosed. The system includes a flow rate sensor to measure the flow rate of the fluid through the valve, and a controller. The controller is configured to receive the measured flow rate from the flow rate sensor, and determine if the measured flow rate is equal to a predetermined flow rate value. The controller is further configured to, in response to a determination that the measured flow rate is equal to the predetermined flow rate value, determine a minimum valve position threshold (xmin). Additionally, the controller is configured to determine a minimum flow rate threshold (ymin) corresponding to xmin, and configured to generate a PWM signal and calculate a corrected flow rate (?f) using the PWM signal. The controller controls a valve operation using ?f. The PWM signal switches between zero and ymin.

Abstract: A building control system uses an empirical technique to determine the uncertainty in parameters of an energy use model. The energy use model is used to predict energy consumption of a building site as a function of the model parameters and one or more predictor variables. The empirical technique includes obtaining a set of data points, each of the data points including a value for the one or more predictor variables and an associated energy consumption value for the building site. Multiple samples are generated from the set of data points, each of the multiple samples including a plurality of data points selected from the set of data points. For each of the multiple samples, the model parameters are estimated using the plurality of data points included in the sample. The uncertainty in the model parameters is determined using the multiple estimates of the model parameters.

Abstract: A heating, ventilation, or air conditioning (HVAC) system for a building includes a plurality of indoor subsystems, a high-level controller, and a plurality of low-level controllers. Each indoor subsystem includes one or more indoor units configured to provide heating or cooling to one or more building spaces. The high-level controller is configured to generate a plurality of indoor subsystem energy targets, each indoor subsystem energy target corresponding to one of the plurality of indoor subsystems and generated based on a thermal capacitance of one or more building spaces to which heating or cooling is provided by the corresponding indoor subsystem.

Abstract: A controller for central plant equipment obtains a model of one or more sources configured to supply input resources, one or more subplants configured to convert the input resources to output resources, and one or more sinks configured to consume the output resources. The controller generates a resource balance constraint that requires balance between a first amount of each resource and a second amount of each resource. The first amount of each resource includes a sum of an amount of the resource supplied by the sources and an amount of the resource produced by the subplants. The second amount of each resource includes a sum of an amount of the resource consumed by the subplants and an amount of the resource consumed by the sinks. The controller performs an optimization of an objective function subject to the resource balance constraint to determine target amounts of each resource to be produced or consumed by the central plant equipment at a plurality of times within an optimization period.

Abstract: An earthmoving machine comprises an implement. The implement defines a variable implement angle ?Bucket(t) indicative of a current position of the implement relative to horizontal as a function of time t. The implement comprises teeth extending a tooth height h and defining an active raking ratio r. Controllers are programmed to execute an implement teeth grading offset determination process that comprises determining a variable implement offset angle ?Delta(t) at least partially based on a difference between an original target design angle ?Tgt(t) and the variable implement angle ?Bucket(t), determining an implement offset IO based on h, r, and ?Delta(t), and determining a new target design elevation ElvTgt,New(t) based on IO and an original target design elevation ElvTgt,Orig(t).

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 building HVAC system includes an airside system having a plurality of airside subsystems, a high-level controller, and a plurality of low-level airside controllers. Each airside subsystem includes airside HVAC equipment configured to provide heating or cooling to one or more building spaces. The high-level controller is configured to generate a plurality of airside subsystem energy targets, each airside subsystem energy target corresponding to one of the plurality of airside subsystems and generated based on a thermal capacitance of the one or more building spaces to which heating or cooling is provided by the corresponding airside subsystem. Each low-level airside controller corresponds to one of the airside subsystems and is configured to control the airside HVAC equipment of the corresponding airside subsystem in accordance with the airside subsystem energy target for the corresponding airside subsystem.

Abstract: A building system comprising one or more memory devices storing instructions that, are executed by one or more processors. The instructions include retrieving one or more instructions for installing a thermostat with heating, ventilation, and air conditioning (HVAC) equipment and causing a user interface to display the one or more instructions. The instructions further include receiving one or more confirmation indications of the one or more instructions being performed successfully by a user and causing the user interface to display an interface including one or more indication that the one or more instructions were performed successfully by the user.

Abstract: A space controller and method for determining energy savings of the space controller are provided. The method includes estimating, by one or more processing circuits, a steady state gain of a controlled variable of a heating, ventilation, and air conditioning (HVAC) system; determining, by the one or more processing circuits, an actual runtime that HVAC equipment of the HVAC system is in an on state based on a first setpoint or schedule; predicting, by the one or more processing circuits, a reduction of runtime that the HVAC equipment is in the on state for a second setpoint or schedule based on the actual runtime and the steady state gain; and adjusting, by the one or more processing circuits, the first setpoint or schedule to the second setpoint or schedule based on the reduction of runtime.

Abstract: A wireless infrastructure component for integration with a building fire system includes a first mounting interface and a wireless communications interface. The first mounting interface is configured to physically couple to a mounting surface and includes a first power connector that is configured to receive power from the building fire system. The wireless communications interface is electrically coupled to the first power connector and is configured to use the power from the building fire system in order to conduct wireless communications with one or more wireless devices.

Abstract: A material moving machine including an implement, a camera, an augmented display, and a controller. The controller is programmed to store a three-dimensional model of underground features of terrain, capture an implement image comprising the implement and terrain, generate a superimposed image by superimposing corresponding portions of the implement image and the three-dimensional model of underground features, overlay a virtual trench on the superimposed image to generate an augmented reality overlay image, generate the augmented reality overlay image, and display the augmented reality overlay image on the augmented display.

Abstract: Systems and methods for providing grade control on a motor grader without the use of masts attached to the blade. Embodiments include a body angle sensor configured to detect movement of a construction machine's body, a front GNSS receiver configured to detect a geospatial position of the construction machine's body within a world space, a drawbar angle sensor configured to detect movement of the construction machine's drawbar, and a blade angle sensor configured to detect movement of the construction machine's blade. Two positions on the blade may be calculated first within a machine space and subsequently within the world space. Movement of at least one articulating connection may be caused based on the blade positions within the world space.

Abstract: A system for displaying information to a user. The system includes a building management system (BMS) including at least one operating device. The system includes a mixed reality (MR) device. The MR device includes an optical projection system configured to display images and includes a controller including a processing circuit in communication with the optical projection system, the BMS, and a cloud database. The processing circuit is configured to receive a user input from a component of the MR device and provide a request for a device model and data describing the at least one operating device to the cloud database storing the device model and the data. The request is based on the user input. The processing circuit is configured to receive the device model and the data and display, via the optical projection system, a visualization of the device model and the data.

Abstract: An illustrative embodiment disclosed herein is a network including a first local group of first node devices, a second local group of second node devices, and a new node device. The new node device has a processor with programmed instructions to range to each of the first node devices, collect ranging data from each of the first node devices, calculate a plurality of distances based on the ranging data, and send the plurality of distances to each of the second node devices.

Abstract: A controller in a building management system (BMS) includes an integrated wireless network processor chip. The integrated wireless network processor chip includes a wireless radio, a processor, and memory. The wireless radio is configured to exchange data communications with one or more BMS devices controlled by the controller. Both the processor and memory are in communication with the wireless radio and located on the same chip as the wireless radio. The memory includes communication stacks configured to facilitate communications using a building automation and control network communications protocol and a Wi-Fi communications protocol. The integrated wireless network processor chip receives data from the BMS devices via the wireless radio, formats the data using the processor, stores the data in the memory, and sends the data via the wireless radio without requiring any additional processing or communications components outside the integrated wireless network processor chip.