F24F11/30

MOTOR CONTROL DEVICE AND AIR CONDITIONER

A motor control device of an embodiment includes a power supply unit that supplies AC power to a motor; a current detection unit that detects a current flowing through a winding of the motor; a speed and electric angle estimation unit that estimates a rotation speed and an electric angle of the motor based on a voltage outputted by the power supply unit and the current; a coordinate conversion unit that obtains an excitation current and a torque current based on the current and the electric angle; a torque current command determination unit that substitutes a predicted torque calculated based on a mechanical motion equation into a torque component current command value calculated based on a torque expression of a vector control coordinate, to generate a torque component current command value for bringing a difference between an inputted speed command and an estimated speed closer to zero; and a model prediction control unit that applies, to a plurality of predicted currents including a current change ratio determined depending on each of a plurality of switching patterns based on a space voltage vector that are able to be outputted by the power supply unit, an evaluation function to evaluate a size of a difference from a predicted current corresponding to each of the torque component current command value and an excitation component current command value inputted from outside, and that selects and outputs a switching pattern.

Intelligent context-based control of air flow

A computer system provides intelligent context-based control of air flow. An identity of a user and a location of the user within an area that includes one or more vents associated with a climate control system are identified. User preferences are determined based on the identity of the user. Characteristics of air flow in the area are adjusted based on the user preferences the user and the location of the user, wherein the characteristics of the air flow comprise one or more from a group of: a direction, and a flow rate. Embodiments of the present invention further include a method and program product for providing intelligent context-based control of air flow in substantially the same manner described above.

Intelligent context-based control of air flow

A computer system provides intelligent context-based control of air flow. An identity of a user and a location of the user within an area that includes one or more vents associated with a climate control system are identified. User preferences are determined based on the identity of the user. Characteristics of air flow in the area are adjusted based on the user preferences the user and the location of the user, wherein the characteristics of the air flow comprise one or more from a group of: a direction, and a flow rate. Embodiments of the present invention further include a method and program product for providing intelligent context-based control of air flow in substantially the same manner described above.

Proactive management of appliances
11555749 · 2023-01-17 · ·

In some implementations, a system performs proactive performance tests for an appliance before a time for an operational change in usage of the appliance. Usage data for an appliance associated with a property may be obtained. The obtained usage data indicates past activity of the appliance and present operational status of the appliance. Weather forecast data associated with a location of the property can be obtained. A time for an operational change in usage of the appliance can be predicted based at least on the obtained usage data for the appliance and the obtained weather forecast data. An operation directed to conducting one or more performance tests on the appliance can be performed before the predicted time for the operational change in usage of the appliance. One or more communications related to the one or more performance tests of the appliance can be provided to a client device.

Proactive management of appliances
11555749 · 2023-01-17 · ·

In some implementations, a system performs proactive performance tests for an appliance before a time for an operational change in usage of the appliance. Usage data for an appliance associated with a property may be obtained. The obtained usage data indicates past activity of the appliance and present operational status of the appliance. Weather forecast data associated with a location of the property can be obtained. A time for an operational change in usage of the appliance can be predicted based at least on the obtained usage data for the appliance and the obtained weather forecast data. An operation directed to conducting one or more performance tests on the appliance can be performed before the predicted time for the operational change in usage of the appliance. One or more communications related to the one or more performance tests of the appliance can be provided to a client device.

HVAC PERFORMANCE MONITORING METHOD
20230011020 · 2023-01-12 ·

A method of monitoring performance of a building system to control ambient conditions within the interior of a structure including: detecting a physiological condition of an individual within the interior of the structure; detecting an ambient condition within the interior of the structure; determining a user activity that is assigned to an area within the interior of the structure where the individual is located; and determining a wellness performance score of the area in response to at least the physiological condition, the ambient condition, and the user activity that is assigned to an area within the interior of the structure where the individual is located.

Energy management system and method

A demand response system includes a mobile application of a mobile device that is configured to initiate altering an operating condition of a network device disposed at a site using location based services. A demand response application interface module is configured to enable access between a utility company and the network device to communicate energy management information therebetween. The network device is configured to be remotely altered by each of the demand response application interface module and the mobile application separately based on the location based services and the energy management information. A method of managing a demand response system includes detecting a user being disposed away from a site, detecting energy management information from a utility company associated with the site, and initiating a reduction in energy use at the site in response to the relative location of the user and the energy management information.

Energy management system and method

A demand response system includes a mobile application of a mobile device that is configured to initiate altering an operating condition of a network device disposed at a site using location based services. A demand response application interface module is configured to enable access between a utility company and the network device to communicate energy management information therebetween. The network device is configured to be remotely altered by each of the demand response application interface module and the mobile application separately based on the location based services and the energy management information. A method of managing a demand response system includes detecting a user being disposed away from a site, detecting energy management information from a utility company associated with the site, and initiating a reduction in energy use at the site in response to the relative location of the user and the energy management information.

Portable remote processing apparatus for property transactions
11593900 · 2023-02-28 · ·

A portable remote processing apparatus facilitates various aspects of a transaction, such as a real estate property transaction. A seller of the real estate property can use the portable remote processing apparatus to prepare a walk-through of the property for prospective buyers, to configure the property for a showing, and/or to interact with a buyer device to negotiate a sale of the real estate property. Typically, the portable remote processing apparatus communicates with a remote server device, thereby limiting the amount of hard coding in the apparatus and improving the processing capability of the apparatus.

Portable remote processing apparatus for property transactions
11593900 · 2023-02-28 · ·

A portable remote processing apparatus facilitates various aspects of a transaction, such as a real estate property transaction. A seller of the real estate property can use the portable remote processing apparatus to prepare a walk-through of the property for prospective buyers, to configure the property for a showing, and/or to interact with a buyer device to negotiate a sale of the real estate property. Typically, the portable remote processing apparatus communicates with a remote server device, thereby limiting the amount of hard coding in the apparatus and improving the processing capability of the apparatus.