Abstract: A magnet and magnetometer may be integrated into a smart home environment and allow it to be placed into an away mode of operation despite an entry point being semi-open. The disclosed implementations can detect a magnetic field strength and determine, based on the detected field strength, an approximate distance that a moveable partition is open. In some configurations, the presence of a second magnetic source can be detected. A notice may be generated based on one or more signals received from the magnetometer. The notice may be sent to a controller, a remote system, a remote device, and/or a client device as disclosed herein.

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: Systems and methods of detecting human movement with a sensor are provided, including generating a motion event signal in response to movement detected by the sensor, and generating a parameterized curve to represent the detected motion. The parameterized curve is fit to a predetermined window of sensor data captured by the sensor to filter the motion event signal. A noise magnitude estimate and a curve fit error is determined based on the fitted parameterized curve to the predetermined window. A detection threshold value is determined based on the curve fit error, a noise source signal estimate of known noise, and zero or more noise magnitudes from other sources. Human motion is determined by correlating a true motion event signal with human motion based on a comparison between a value of a point on the parameterized curve and the detection threshold value.

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 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: Systems and techniques are provided for motion sensor adjustment. A signal indicating that motion was detected by a motion sensor may be received. A status of an HVAC system may be received from a computing device that controls the operation of vents of the HVAC system. The status of the HVAC system may include times vents of the HVAC system are operating. Using the status of the HVAC system, it may be determined that a vent of the HVAC system located in an area visible to the motion sensor was operating during the time period in which the motion sensor detected motion by correlating the time period in which the motion sensor detected motion with the times the vent was operating as indicated by the status of the HVAC system. The signal indicating that motion was detected may be ignored as a false alert and no alert may be generated.

Abstract: A smart-home device may include a plurality of temperature sensors, and a processing system that may be configured to operate a first operating state characterized by relatively low power consumption and a corresponding relatively low associated heat generation, and a second operating state characterized by relatively high power consumption and a corresponding relatively high associated heat generation. During time intervals in which the processing system is operating in the first operating state, the processing system may process the temperature sensor measurements according to a first ambient temperature determination algorithm to compute the determined ambient temperature. During time intervals in which the processing system is operating in the second operating state, the processing system may process the temperature sensor measurements according to a second ambient temperature determination algorithm to compute the determined ambient temperature.

Abstract: A sensor package is disclosed that includes a compass and/or an accelerometer. The compass may be activated by a microcontroller in response to an indication of movement detected by an accelerometer. The compass's data may be utilized to determine an orientation for the object such as a door on which the sensor package is situated. The orientation data may indicate that the door is ajar and/or that a second magnetic field is present, suggesting tampering. A notice may be dispatched to a controller for the home security system, a client device, a remote system, etc.

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: 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: Systems and methods are provided for determining, at a controller of a device of a premises management system having a head unit and a backplate, at least a partial removal of the head unit from the backplate based on a position of a removal switch that detects connectivity between the head unit and the backplate. When the controller determines that the position of the removal switch is in an open position, an orientation of the head unit may be continuously determined based on an output signal from an accelerometer coupled to the head unit. A tampering signal is output based on the open position of the backplate removal switch and the determined orientation of the head unit.

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.

Abstract: Systems and techniques are provided for guided installation feedback for an opening sensor. Detected magnetic field strengths of a magnetic field created by a magnet of an opening sensor as detected by a magnetometer sensor of the opening sensor may be received over a time period. It may be determined that there has been a change in the strength of the magnetic field created by the magnet as detected by the magnetometer sensor based on the received detected magnetic field strengths. Accelerometer data from an accelerometer disposed in the magnetometer sensor may be received. It may be determined from the accelerometer data that the magnetometer sensor was not moving and positive feedback may be provided to an installer of the opening sensor, or it may be determined from the accelerometer data that the magnetometer sensor was moving and negative feedback may be provided to the installer of the opening sensor.

Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.

Abstract: A magnet and magnetometer may be integrated into a smart home environment and allow it to be placed into an away mode of operation despite an entry point being semi-open. The disclosed implementations can detect a magnetic field strength and determine, based on the detected field strength, an approximate distance that a moveable partition is open. In some configurations, the presence of a second magnetic source can be detected. A notice may be generated based on one or more signals received from the magnetometer. The notice may be sent to a controller, a remote system, a remote device, and/or a client device as disclosed herein.

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: 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.

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: A system and method is provided for the control of a network of devices wherein each device of the networked devices provides for the operation of a sensor such as an accelerometer, processor and communication element within each device, and network and/or cloud based processing and storage, to process collected data to permit detection and predictive analysis of traffic patterns, weather patterns and other forces of nature. The system and method can analyze duration and magnitude of vibration signals, and considering maps and known locations of devices, tracks and highways and historical data regarding each, use machine learning techniques to accurately classify the motion and provide real-time and predictive analysis.

Abstract: A path light control device that can include a processor and light source, and any combination of ambient light sensors (ALS), passive infrared (PIR) sensors, accelerometers and compass sensors, where the sensor sampling mode and sampling period may be dynamically determined to permit the ALS to accurately measure an ambient light without excessive operation. The accelerometer and compass sensor may be provided to determine device movement and orientation to avoid sensor operation when movement or orientation of the device indicates that the data of the sensor is not applicable for proper device control.