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. The radiant heating system may subsequently be controlled according to the selected optimal control strategy.
Abstract:
Hazard detection systems and methods according to embodiments described herein are operative to enable a user to interface with the hazard detection system by performing a touchless gesture. The touchless gesture can be performed in a vicinity of the hazard detection system without requiring physical access to the hazard detection system. This enables the user to interact with the hazard detection system even if it is out of reach. The hazard detection system can detect gestures and perform an appropriate action responsive to the detected gesture. In one embodiment, the hazard detection system can silence its audible alarm or preemptively turn off its audible alarm in response to a detected gesture. Gestures can be detected using one or more ultrasonic sensors, or gestures can be detected using a motion detector in combination with one or more ultrasonic sensors.
Abstract:
Hazard detection systems and methods according to embodiments described herein are operative to enable a user to interface with the hazard detection system by performing a touchless gesture. The touchless gesture can be performed in a vicinity of the hazard detection system without requiring physical access to the hazard detection system. This enables the user to interact with the hazard detection system even if it is out of reach. The hazard detection system can detect gestures and perform an appropriate action responsive to the detected gesture. In one embodiment, the hazard detection system can silence its audible alarm or pre-emptively turn off its audible alarm in response to a detected gesture. Gestures can be detected by processing sensor data to determine whether periodic shapes are detected.
Abstract:
A method of controlling a security system of a premises includes detecting one or more exceptions when the system is set to an alarm mode, determining whether any of the one or more exceptions is a terminal exception, automatically executing an arming procedure according to the alarm mode when all of the exceptions are determined to be non-terminal exceptions, preventing execution of the arming procedure when any of the exceptions are determined to be a terminal exception, and, while in the alarm mode, preventing a sensor associated with a security exception from triggering an alarm when the security exception is fully corrected, and triggering an alarm when a condition that is causing the security exception is adjusted without resulting in full correction of the security exception.
Abstract:
A method may receive, in response to a first event, a first sensor data from a first sensor, and receive, in response to the first event, a second sensor data from a second sensor. The method may select, from among a plurality of event profiles, a first event profile. The first event profile may comprise a first condition matching the first sensor data, a second condition matching the second sensor data, and a plurality of conditions which, when met, indicate the occurrence of the first event. Conditions may include a sensor data, a time period, a user data, a sequence of conditions, or a combination of such data. The first event profile may comprise a first event notice to be provided in response to the occurrence of the first event. The method may provide the first event notice to a recipient indicated by the event profile.
Abstract:
A system is provided including a plurality of inter-connected premises management devices, each including one or more sensors that generate data about an environment, and a control device to control one or more operations of the premises management system, the control device including a movement detector. The premises management system detects an attempt by an intruder to damage the control device based on data from the movement detector indicating an abnormal movement applied to the control device, historical data obtained from the sensors, and current data obtained from the sensors.
Abstract:
An image of at least a portion of a room may be received, the image of the room comprising an image of a sensor mounted in the room. At least one optical parameter related to the image of the room may also be received. A distance may be determined between the sensor and a camera that captured the image of the room, wherein the determination of the distance is based at least in part on the optical parameters and on known physical dimensions of the sensor. A sensitivity requirement of the sensor may be determined, based on the distance. The determined sensitivity may be sent to control logic of the sensor.
Abstract:
Systems and techniques are provided for guided installation of an opening sensor. A strength of a magnetic field created by a magnet of an opening sensor at a location of a magnetometer sensor of the opening sensor may be determined. Feedback may be provided to an installer of the opening sensor based on the determined strength of the magnetic field. A function of the opening sensor may be configured based on the determined strength of the magnetic field. The function may be associated with reporting the status of an entry point to which the magnetometer sensor may be affixed.
Abstract:
A system and method for automatic path light control based on a detected size and classification of motion around the device using passive infrared (PIR) sensor technologies and distributed classification algorithms, and on detected light levels in and around the path area using ambient light sensor (ALS) technologies. By using such sensor data, the path light does not need to be maintained at a fixed value, which may be inadequate or inefficient at times, nor require constant user adjustments. Implementations of the disclosed subject matter enable automatic path light control that can be dynamic and automatically adjusted to fit the environment, the current user characteristics and the current user movements through the environment.
Abstract:
A security system includes a plurality of sensors installed at a premises to capture data from an environment in or around the premises, a memory configured to store data captured spanning at least a first period of time, and a processor configured to arm the plurality of sensors in an order determined based on a history of detected activity in the premises as indicated by the stored data.