An air filter includes filter media, a sensor, and circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data. The data may be received by a device with a display to use the information to present an indication of the filter media condition to a user.

A method for controlling an actuatable safety device (110) for helping to protect a vehicle occupant includes sensing left-front and right-front pressure values via a pressure tube sensor (18). The method also includes executing pressure tube metrics that evaluate the left-front and right-front pressure values and selecting switched crash thresholds in response to the pressure tube metrics. The method also includes sensing vehicle acceleration parameters (99) and executing one or more crash metrics that evaluate the vehicle acceleration parameters to determine whether the switched crash thresholds are exceeded. The method further includes controlling deployment of the actuatable safety device (110) in response to determining that the switched crash thresholds are exceeded. A vehicle safety system (100) implements the method.

A method for controlling an actuatable safety device (110) for helping to protect a vehicle occupant includes sensing left-front and right-front pressure values via a pressure tube sensor (18). The method also includes executing pressure tube metrics that evaluate the left-front and right-front pressure values and selecting switched crash thresholds in response to the pressure tube metrics. The method also includes sensing vehicle acceleration parameters (99) and executing one or more crash metrics that evaluate the vehicle acceleration parameters to determine whether the switched crash thresholds are exceeded. The method further includes controlling deployment of the actuatable safety device (110) in response to determining that the switched crash thresholds are exceeded. A vehicle safety system (100) implements the method.

An aerosol delivery device is provided. The aerosol delivery device includes a power source, an aerosol production component, a sensor to produce measurements of atmospheric air pressure in an air flow path through at least one housing, and a switch coupled to and between the power source and the aerosol production component. The aerosol delivery device also includes processing circuitry that determines a difference between the measurements of atmospheric air pressure and a reference atmospheric air pressure. Only when the difference is at least a threshold difference, the processing circuitry outputs a signal to cause the switch to switchably connect and disconnect an output voltage from the power source to the aerosol production component to adjust power provided to the aerosol production component to a power target that is variable according to a predetermined relationship between the difference and the power target.

An aerosol delivery device is provided. The aerosol delivery device includes a power source, an aerosol production component, a sensor to produce measurements of atmospheric air pressure in an air flow path through at least one housing, and a switch coupled to and between the power source and the aerosol production component. The aerosol delivery device also includes processing circuitry that determines a difference between the measurements of atmospheric air pressure and a reference atmospheric air pressure. Only when the difference is at least a threshold difference, the processing circuitry outputs a signal to cause the switch to switchably connect and disconnect an output voltage from the power source to the aerosol production component to adjust power provided to the aerosol production component to a power target that is variable according to a predetermined relationship between the difference and the power target.

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.

A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

In accordance the present invention, a method, apparatus and computer program for monitoring air pressure change are provided that may include receiving a user input selecting a pressure monitoring application, receiving a user input initiating monitoring of an ambient air pressure by the pressure monitoring application, determining a first barometric pressure of the ambient air pressure at a first time, determining a second barometric pressure of the ambient air pressure at a second time, wherein the second time is a predetermined time interval from the first time, comparing the first barometric pressure with the second barometric pressure to determine a first absolute rate of change of the ambient air pressure over the predetermined time interval, and providing an indication to employ protective measures when the first absolute rate of change of the ambient air pressure is equal to or a exceeds a threshold rate of change likely to cause barotrauma.