Abstract: Message latency between an HVAC controller located within a building and a remote server may be reduced in response to a determination that a user is in proximity to the HVAC controller, and message latency may be increased when a user is not expected to be proximity to the HVAC controller. This may reduce the overall power consumption of an HVAC controller while still maintaining a good user experience. This can be particularly important for HVAC controllers that are powered by a local energy storage device, such as a battery.

Abstract: An energy-reducing method and apparatus for retrofitting a single zone, constant volume HVAC system, with or without an economizer, that provides heating, cooling, and ventilation to occupants within a building space. The present invention includes the introduction of a programmable logic controller and variable frequency drive (VFD) that takes control of the existing fan, heating, cooling, and optional economizer operation. The reduction of the fan speed in the ventilation mode when the 100% operation is not needed saves significant energy of the existing constant volume HVAC system where the fan motor is designed to run 100% of the time.

Abstract: A control system to selectively control the operation of the compressor of a mini-split air conditioning system including at least one remote evaporator operatively coupled to the compressor to receive refrigerant therethrough, a sensor to monitor the operation of the evaporator and to generate an operating control signal to turn-off the compressor when a predetermined operating condition is sensed at the evaporator and a condensate drain pan to receive or catch condensate from the evaporator, the control system comprising a condensate sensor disposed to sense condensate in the condensate drain pan at a predetermined level and to generate a condensate level signal fed to a battery powered control device including an isolated solid state relay coupled to the sensor by a control coupling device to generate a condensate level control signal fed to the sensor causing the sensor to generate the operating control signal fed to turn off the compressor when condensate within the condensate drain pan reaches the prede

Abstract: A standard schedule creator creates a standard schedule that makes it possible to achieve a target presented by target data. A seasonal schedule updater, monthly schedule updater, weekly schedule updater, and current day schedule updater update the created standard schedule using the corresponding weather forecast data to create an operation schedule of an air conditioner in which the weather forecast is properly reflected.

Abstract: Methods for controlling temperature in a conditioned enclosure such as a dwelling are described that include an “auto-away” and/or “auto-arrival” feature for detecting unexpected absences which provide opportunities for significant energy savings through automatic adjustment of the setpoint temperature. According to some preferred embodiments, when no occupancy has been detected for a minimum time interval, an “auto-away” feature triggers a changes of the state of the enclosure, and the actual operating setpoint temperature is changed to a predetermined energy-saving away-state temperature, regardless of the setpoint temperature indicated by the normal thermostat schedule. The purpose of the “auto away” feature is to avoid unnecessary heating or cooling when there are no occupants present to actually experience or enjoy the comfort settings of the schedule, thereby saving energy.

Abstract: One aspect of the disclosure describes a controller for a heating, ventilation, and air conditioning (HVAC) unit. In one embodiment, the HVAC controller includes an interface and a processor. In this embodiment, the interface is configured to receive a delay originating signal. In one embodiment, the processor is configured to: (1) automatically generate an offset delay value for the HVAC unit upon receipt of the delay originating signal; (2) apply the offset delay value based on an offset enabled configurable parameter; and (3) delay starting identified components of the HVAC unit based on the offset delay value.

Abstract: A method for estimating a heating/cooling load of a zone within a building may include determining a measured parameter from the zone, generating a reduced order thermodynamic model of the zone, generating an Extended Kalman Filter based on the thermodynamic model of the zone, and processing the measured parameter using the Extended Kalman Filter to estimate at least one unknown state of the zone, such as an estimated load. A similar method may be used to estimate a temperature in a cold room of a refrigeration system.

Abstract: Exemplary embodiments are disclosed of a control for an HVAC system. The control has an alphanumeric display, a plurality of two position switches (e.g., push buttons, etc.), and a processor. The processor receives a current user input through at least one of the two position switches and determines a response to the current user input. The determining is performed using one or more previously received user inputs, if any, via one or more of the two position switches. The processor implements the determined response by displaying a message on the alphanumeric display and/or changing an operational parameter of the HVAC system.

Abstract: A control unit controls a first DC motor and a second DC motor by detecting a rotational position thereof and includes first control means and second control means. The first control means performs a detection of the origin position pattern by controlling each DC motor to rotate toward one side within a detectable range. In case where the rotational position reaches one end of the detectable range, the second control means performs a detection of the origin position pattern by controlling the DC motor to rotate oppositely from the one side when the other DC motor is stopping, and performs a detection of the origin position pattern by controlling the DC motor to rotate oppositely from the one side after the rotational position of the other DC motor reaches the one end of the detectable range when the other DC motor is rotating.

Abstract: A method of real-time optimization for a Combined Cooling, Heating and Power system, including determining a first operation sequence of a plurality of chillers and at least one thermal energy storage tank in the system over a time period (410) and determining a second operation sequence of the plurality of chillers and at least one thermal energy storage tank in the system over the time period by using the first operation sequence as input to a greedy algorithm (420).

Abstract: In exemplary embodiments, driving controls and diagnostic methods are disclosed for communicating motors. In an exemplary embodiment, a method generally includes generating a signal for sending to a communicating motor using transmitting hardware in a driving control, detecting the generated signal before it is transmitted to the communicating motor using a transmit sense circuit in the driving control, and analyzing the detected signal to verify whether the transmitting hardware in the driving control is operational.

Abstract: Embodiments of the invention describe thermostats that use model predictive controls and related methods. A method of controlling a thermostat using a model predictive control may involve determining a parameterized model. The parameterized model may be used to predicted ambient temperature values for an enclosure. A set of radiant heating system control strategies may be selected for evaluation to determine an optimal control strategy from the set of control strategies. To determine the optimal control strategy, a predictive algorithm may be executed, in which each control strategy is applied to the parameterized model to predict an ambient temperature trajectory and each ambient temperature trajectory is processed in view of a predetermined assessment function. Processing the ambient temperature trajectory in this manner may involve minimizing a cost value associated with the ambient temperature trajectory.

Abstract: Computational fluid dynamics (CFD) can be used for modeling environment characteristics and for controlling instrumentation in sensitive environments, such as in an office building, datacenter, hospital, enclosed arena, airport, or other environment. In an example, power consumption characteristics from physical equipment assets in an environment can be used by a CFD circuit to improve accuracy of a CFD model. Information from a CFD model can be used to optimize efficiency of HVAC or other air-moving systems serving an environment. In an example, CFD analyses can be performed substantially in real-time when one or more inputs to a CFD model change, relative to a baseline value, by more than a specified threshold amount. An energy efficient and cost efficient response to a change in infrastructure of an environment can be identified based on a CFD model of the environment.

Abstract: Components and devices are provided for controlling and monitoring a machine or process using an automation controller that may be capable of receiving inputs from a digital source, an analog source, or a thermistor source. In one embodiment, an automation controller may include first, second, and third input terminals. The first and second input terminals may receive input signals from analog and digital sensors, and the second and third terminals may receive input signals from a thermistor.

Abstract: An operation management apparatus includes an air conditioning thermal load prediction unit configured to calculate an air conditioning thermal load predicted value indicating a predicted amount of heat required to adjust temperature to a pre-set temperature on a day-of-prediction, a power generation output prediction processing unit configured to calculate power generation output prediction data indicating a generated power obtained by a generator within the day-of-prediction, and an operation planning unit configured to prepare an air conditioning heat source operation plan, and determines a purchased power and the generated power using the power generation output prediction data to thereby prepare a power facility operation plan indicating a schedule of a power output from the purchased power source and the generator, so that the purchased power per predetermined time supplied from a purchased power source of a commercial power system becomes a target value.

Abstract: A method for configuring a heating, ventilation, and air conditioning (HVAC) system controller and an HVAC system controller are disclosed. The method includes displaying an installation profile icon on a user interface of the HVAC system controller, the installation profile icon representing an installation profile that includes one or more settings for one or more parameters. The HVAC system controller receives an input on the user interface of the HVAC system controller based on a selection of the installation profile icon. The method further includes setting the one or more parameters in a memory of the HVAC system controller based on the one or more settings for the one or more parameters in the installation profile in response to receiving the input.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may help a contractor pro-actively identify possible issues with its customer's building control systems, and only then schedule maintenance as required. In some cases, based on the analysis of information obtained from the building control systems over time, the system may output indications of abnormalities in the operation of the building control systems from which information may be received.

Abstract: A tool for providing a visualization of a system may reveal an interactive navigation environment for building performance observation and assessment. The tool may be associated with a processor. The environment may incorporate a treemap, a graph pane, a treemap filter, a graph pane selector, a selected units box and a date/time control mechanism. A visualization of the environment, among other things, may be presented on a display. The treemap may exhibit a building geometry and/or equipment units hierarchically, along with some data information. Units may be interactively selected from the treemap and placed in the box for analysis. The graph pane may show a configuration and display of unit analysis. Selection of detailed views for units in the box may be provided by the graph pane selector. Date and time intervals for analysis may be selected by the control mechanism.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may help a contractor pro-actively identify possible issues with its customer's building control systems. A controller of the system may populate a display screen on a remote device to display a summary display screen with selectable features for obtaining detailed information related to the selected feature. The summary display screen may display a summary of business performance data, customer performance data, and/or HVAC performance data associated with a set of log-in credentials.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may include a controller that analyzes data from HVAC systems, determines a thermal model of a space environmentally controlled by an HVAC system, and provides an energy audit of the space that is environmentally controlled by the HVAC system. The controller may output a result of the energy audit to a user.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may include a controller that analyzes data from HVAC systems, determines a thermal model of a space environmentally controlled by an HVAC system, and provides an energy audit of the space that is environmentally controlled by the HVAC system. The controller may output a result of the energy audit to a user.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may help a contractor pro-actively identify possible issues with its customer's building control systems and may output an alert related to an operation of the customer's building control systems. Within the system, the contractor may able to open a case associated with the customer's building control systems and link related alerts to the case.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may be configured to allow a user to grant or deny access to its HVAC system in response to the user receiving an electronic invitation to the system. The granting of access by a user to its HVAC system may allow for remote monitoring of the HVAC system.

Abstract: A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may include a controller that analyzes data from HVAC systems, determines if one or more of the HVAC systems may benefit from a particular product or service, and outputs the HVAC systems that are determined to benefit from a particular product or service.

Abstract: The purpose of the present invention is to provide a novel management system that is highly convenient for warehouse managers. A warehouse management system (10) comprises a host computer (core server) (20) and an Internet connection terminal (30) (personal computer (31), tablet terminal (32), portable terminal (33), or the like), The host computer (core server) (20) performs collection and maintenance of data from a control device (40) for a warehouse and performs management and operation of the control device (40). In addition, the Internet connection terminal (30) is connected via Internet to the host computer (core server) (20) and is capable of management and operation of the control device (40).

Abstract: A thermostat for controlling an HVAC system is described, the thermostat having a user interface that is visually pleasing, approachable, and easy to use while also providing ready access to, and intuitive navigation within, a menuing system capable of receiving a variety of different types of user settings and/or control parameters. For some embodiments, the thermostat comprises a housing, a ring-shaped user-interface component configured to track a rotational input motion of a user, a processing system configured to identify a setpoint temperature value based on the tracked rotational input motion, and an electronic display coupled to the processing system. An interactive thermostat menuing system is accessible to the user by an inward pressing of the ring-shaped user interface component. User navigation within the interactive thermostat menuing system is achievable by virtue of respective rotational input motions and inward pressings of the ring-shaped user interface component.

Abstract: In a multi-sensing, wirelessly communicating learning thermostat that uses power-harvesting to charge an internal battery, methods are disclosed for ensuring that the battery does not become depleted or damaged while at the same time ensuring selected levels of thermostat functionality. Battery charge status is monitored to determine whether the present rate of power usage needs to be stemmed. If the present rate of power usage needs to be stemmed, then a progression of performance levels and/or functionalities are scaled back according to a predetermined progressive power conservation algorithm. In a less preferred embodiment, there is a simple progressive shutdown of functionalities turned off in sequence until the desired amount of discharge stemming is reached. Battery charge preservation measures are also described for cases when an interruption of external supply power used to recharge the battery is detected.

Abstract: A method and system for managing energy usage in a building is provided. The method includes collecting data on energy consumption in the building on a generally continuous basis for at least a given time period. Information relating to the energy consumption is displayed to a user on one or more devices. The information includes (a) the data collected on energy consumption to be displayed in real-time on the one or more devices, (b) a comparison of the data collected on energy consumption in the building to energy consumption data of a cohort or group of cohorts, (c) recommendations for reducing energy consumption in the building based on the data collected on energy consumption, and (d) progress report data comparing the data collected on energy consumption to a desired consumption level.

Abstract: An apparatus comprises a fluid circuit comprising a fluid actuator and a valve operable to control an operational parameter associated with the fluid actuator, a sensor positioned to sense the operational parameter and to generate a parameter signal indicative of the operational parameter, and an electronic control system coupled electrically to the valve and the sensor. The control system is configured to override a setpoint control signal by outputting a dislodgement control signal to oscillate the valve to attempt to dislodge contamination that may have collected in the valve. An associated method is disclosed.

Abstract: The invention relates to a control process for an air conditioning system. The air conditioning system comprises a thermal loop (1) used as a heat pump and an electrical heating device (2). The process calculates a global heating capacity (HCglo) in function of the temperature chosen by the passenger, the speed of the blower and the temperature of the exterior air. Then, the process calculates a heating capacity (HC1) of the thermal loop (1) and compares this heating capacity (HC1) of the thermal loop to the global heating capacity (HCglo). If the global heating capacity (HCglo) is superior to the heating capacity (HC1) of the thermal loop, the process determines a heating capacity (HC2) of the electrical heating device (2). This heating capacity (HC2) of the electrical heating device (2) added to the heating capacity (HC1) of the thermal loop (1) allows to obtain the global heating capacity (HCglo) required in function of the temperature selected by the passenger.

Abstract: A system and methods providing real-time monitoring, management and control of a variable frequency drive retrofit to a constant volume air handling unit without making significant mechanical or control system changes. Customers and vendors are provided with a more informative and economically attractive air handling unit. The system also provides a finer granularity of control over conditioned air properties such as temperature, humidity and air quality.

Abstract: A system and method of configuring HVAC components in an HVAC system including a main system controller in operable communication with at least one auxiliary controller, wherein the main system controller and each of the at least one auxiliary controllers include a near field communication interface. The HVAC system components are configured by placing each of the at least one auxiliary controllers in close proximity to the main system controller, and operating the main system controller to initiate a pairing event.

Abstract: A device control determiner outputs a control information request containing a condition of facility devices in a data possessing device group possessing control information, and a kind of the control information. A connection relationship manager manages information regarding a connection relationship among each of the plurality of facility devices. A connection route database stores information regarding a connection route from a reference device that is a reference among the plurality of facility devices to another facility device. The device grouper creates a data possessing device group based on the control information request, the connection route database and information managed by the connection relationship manager. An information collective obtainer obtains control information from the facility device in the data possessing device group through a communicator, and creates a data array of the obtained control information.

Abstract: A system and method for calibrating a set-point for climate control includes a sensor network having a plurality of sensors configured to report a climate condition. A database is configured to receive reports from the sensors and generate one or more profiles reflecting at least one of historic climate control information and occupant preferences. A controller is configured to receive information from the profiles to generate a set-point based upon an optimization program. The optimization program is implemented to balance competing goals to generate the set-point for controlling climate control equipment in accordance with the set-point.

Abstract: Described is a technology by which two or more air moving devices have some of their control lines combined, including a frequency control line from a controller. Along with the combined frequency control line, power voltage lines and ground lines and may be combined, with a separate sensing line for each air moving device. One or more couplers couples the combined lines to air moving device control circuitry.

Abstract: The current application is directed to intelligent controllers that initially aggressively learn, and then continue, in a steady-state mode, to monitor, learn, and modify one or more control schedules that specify a desired operational behavior of a device, machine, system, or organization controlled by the intelligent controller. An intelligent controller generally acquires one or more initial control schedules through schedule-creation and schedule-modification interfaces or by accessing a default control schedule stored locally or remotely in a memory or mass-storage device. The intelligent controller then proceeds to learn, over time, a desired operational behavior for the device, machine, system, or organization controlled by the intelligent controller based on immediate-control inputs, schedule-modification inputs, and previous and current control schedules, encoding the desired operational behavior in one or more control schedules and/or sub-schedules.

Abstract: A system and method for performing power conservation actions is described. In some examples, the system determines a power conservation policy based on information from the system, and implements that policy in an enterprise or in one or more buildings, such as within a data storage environment. In some examples, the system adds or modifies global filters or system performance based on information from the system.

Abstract: There is provided a control method for an information terminal device having a display and controlling an air conditioner over a network. The control method makes the information terminal device perform processing including: displaying a temperature setting screen where an air conditioner temperature is settable for each of a plurality of time periods; calculating a first time period preset temperature using a first preset temperature at a boundary time and a second preset temperature at a go-to-bed time; calculating a second time period preset temperature using the first preset temperature and a third preset temperature at a wake-up time; displaying the first time period preset temperature and second time period preset temperature; and outputting to the network a control command corresponding to the first preset temperature and second preset temperature when the first time period preset temperature and second time period preset temperature have been fixed.

Abstract: A wall module for use with a building control system is customizable for a particular application though the selection of different overlays, displays, and/or expansion modules. The selected overlay and the display, when provided, together may form the user interface of the desired wall module configuration. The expansion module may be selected to provide additional desired functionality. Different overlays, displays and/or expansion modules may be selected for different wall modules within a building control system.

Abstract: According to various aspects, exemplary embodiments are disclosed of controllers and methods for accepting multiple different types of input signals. One example controller includes an input circuit including first and second input terminals for receiving an input signal and at least one programmable resistor coupled to the first terminal. A processing device is coupled to the input circuit. The processing device is configured to control a resistance of the at least one programmable resistor based on a terminal setting. The terminal setting indicates whether the input signal is a voltage signal, a current signal, or a resistance signal. The processing device is configured to interpret the input signal applied to the processing device via the input circuit.

Abstract: A control system for controlling at least one environmental parameter in an operating area in response to sensor signals. The system includes a central control unit, actuators and mobile sensor units, and also at least one, preferably a plurality, of communication nodes which are placed in the operating area. Each one of the communication nodes is configured to mediate signals between the sensor units and the central control unit in a monitoring area by wirelessly receiving sensor signals from sensor units located within its monitoring area and forwarding the sensor signals to the central control unit. A monitoring area of a communication node is defined by the signal coverage of the communication node.

Abstract: An air-conditioning setting screen has a coordinate space defined by a Y-axis along which temperature items are indicated in increments of one degree and an X-axis along which time-point items are indicated in increments of one hour. Operation points PT corresponding to the time-point items are arranged in the coordinate space. The air-conditioning setting screen displays time-series changes in a previous day's body-movement values such that the density of a background color is higher for times at which the body-movement value is larger and the density of a background color is lower for times at which the body-movement value is smaller.

Abstract: A method for controlling an indoor temperature based on information about a moving user is provided. The method includes determining a temporary set temperature using weather information of user's current location and current time; and determining a final set temperature by reflecting a change in the weather information caused by movement of the user based on the temporary set temperature.

Abstract: An HVAC controller, a method of operating an HVAC controller and an HVAC system employing the controller or the method. In one embodiment, the HVAC controller includes: (1) a processor couplable to at least two refrigerant pressure sensors via separate data paths to receive input signals therefrom and further couplable to a compressor stage and a condenser fan to provide output signals thereto, and (2) memory coupled to the processor and storing a software program having program instructions capable of causing the processor to command the compressor stage or the condenser fan to turn on irrespective of a state of an input signal generated by either of the at least two refrigerant pressure sensors, and generate an error message at least partially depending upon whether or not a high pressure shutdown occurs after the processor commands the compressor stage or the fan to turn on.

Abstract: A network system is provided. The network system includes an air conditioner, a terminal, a power supply source, and a power management apparatus. The air conditioner includes a first communication module so as to enable communication. The terminal includes a second communication module which is communication-connected to the first communication module, and downloads predetermined information from a web server. The power supply source supplies power to the air conditioner. The power management apparatus manages power information supplied from the power supply source. On the basis of at least one of the power information and information on an operation of the air conditioner, the terminal displays power use information of the air conditioner.

Abstract: A method of increasing the efficiency of a boiler includes determining a proportional time period reflecting how long a thermostat is requesting heat from the boiler within a predetermined time period, determining a cycle frequency reflecting the number of times the thermostat is requesting heat from the boiler within the predetermined time period, and adjusting an energy input provided to the boiler in dependence upon the proportional time period and the cycle frequency.

Abstract: The invention generally relates to ventilation systems and methods, and more particularly to selectively configurable climate control systems and methods for use in data centers and the like. A method includes receiving or obtaining input data, generating at least one actuation signal to change a flow configuration of a re-configurable duct system based upon the input data, and transmitting the at least one actuation signal.

Abstract: Systems and methods for controlling a climate control system of a smart-home environment that includes a plurality of smart devices are provided. One method includes detecting, with a hazard detector of the smart devices, a level of carbon monoxide (CO) at the hazard detector that exceeds a threshold CO level at a location of the hazard detector, determining, by one of the smart devices, that the climate control system includes a combustion based heat source, and in response to the detecting and the determination, transmitting, by a system controller of the climate control system, a first signal to turn off at least one aspect of the climate control system.

Abstract: Resources including electricity, water, gas, and/or other resources of building structures may be monitored and/or controlled by an administrator via a dashboard interface. A usage field presented via the dashboard interface may convey information associated with usage of a resource of a structure. The information conveyed by the usage field may be determined based on a selected breakdown, which may include one or more of a breakdown of resource usage by panel, by location, by usage type, by security level, and/or by other breakdowns. The information conveyed by the usage field may be determined based on a selected region, which may include one or more of a group of structures, portions of structures in a group, a single structure, a portion of a structure, a floor of a structure, a room of a structure, a hallway of a structure, a stairwell of a structure, and/or other spatial region.

Abstract: Various embodiments involving a smart-home device are presented. It may be determined that the power supply interface has ceased receiving power from the structure's wired electrical system. In response to determining that a power supply interface of the smart-home device has ceased receiving power from a structure's wired electrical system, a power loss indication may be stored that comprises a timestamp. A network connection may be determined to be available. A notification may be transmitted of information from the stored power loss indication to a remote server via the available network connection.