A method and system architecture for automation and alarm systems is provided. An intelligent fire detection sensor is provided that provides input data to a gateway device for processing and facilitates two-way communication with users and a third-party monitoring service. The system architecture is hierarchically organized, allowing devices to process system data differently at different levels of the hierarchy. Processing of at least some of the sensor data is overseen by the gateway device, which may determine, based on the processing, to activate one or more secondary sensors at the fire detector (such as an optical camera). The gateway device and fire detection sensor may interact cooperatively to process voice commands and/or gesture data, and to recognize false alarms.

A method and system architecture for automation and alarm systems is provided. An intelligent fire detection sensor is provided that provides input data to a gateway device for processing and facilitates two-way communication with users and a third-party monitoring service. The system architecture is hierarchically organized, allowing devices to process system data differently at different levels of the hierarchy. Processing of at least some of the sensor data is overseen by the gateway device, which may determine, based on the processing, to activate one or more secondary sensors at the fire detector (such as an optical camera). The gateway device and fire detection sensor may interact cooperatively to process voice commands and/or gesture data, and to recognize false alarms.

This application is directed to a home monitoring and control system including a doorbell installed at a door of a home. The doorbell has a button configured to, upon being touched, depressed or activated, wirelessly initiate a first communication to indicate presence of a person at the door. The doorbell also has a camera configured to capture video data within a field of view, and a processor configured to cause a communication component to enable the first communication and wirelessly stream via a remote server the video data captured by the camera to a monitoring device associated with an occupant of the home. A rechargeable battery is coupled to a housing wire and configured to be charged via the housing wire, and the doorbell is configured to charge and discharge the rechargeable battery based on power usage of the doorbell.

This patent specification relates to a wall switch that comprises a docking station and a user-removable wall-switch head unit. In some embodiments, the docking station is configured to receive the user-removable wall-switch head unit, and configured to be permanently connected to a wall and coupled to high-power voltage wires. In some embodiments, the user-removable wall-switch head unit is configured to be user-insertable into said docking station and user-removable therefrom such that the user is not exposed to high-voltage connections when inserting or removing. In some embodiments, the wall switch controller further comprises inputs and outputs and circuitry for switchably controlling household line current power to a household electrical fixture. In some embodiments, the wall switch controller further comprises an occupancy sensor, a temperature sensor, or a processor.

Various devices, systems, and methods may be presented. A sensor unit may be presented that includes a housing and a chamber arranged within the housing and configured to receive air from outside of the housing of the sensor unit. Also present may be a sensor arranged within the housing and configured to measure a characteristic within the chamber. The sensor unit may include a fan arranged within the housing in relation to the chamber, the fan configured to clear air from the chamber of the sensor unit. Further, the sensor unit may include a controller in communication with the fan and the sensor, the controller configured to operate the fan.

Various devices, systems, and methods may be presented. A sensor unit may be presented that includes a housing and a chamber arranged within the housing and configured to receive air from outside of the housing of the sensor unit. Also present may be a sensor arranged within the housing and configured to measure a characteristic within the chamber. The sensor unit may include a fan arranged within the housing in relation to the chamber, the fan configured to clear air from the chamber of the sensor unit. Further, the sensor unit may include a controller in communication with the fan and the sensor, the controller configured to operate the fan.

This patent specification relates to a wall switch that comprises a docking station and a user-removable wall-switch head unit. In some embodiments, the docking station is configured to receive the user-removable wall-switch head unit, and configured to be permanently connected to a wall and coupled to high-power voltage wires. In some embodiments, the user-removable wall-switch head unit is configured to be user-insertable into said docking station and user-removable therefrom such that the user is not exposed to high-voltage connections when inserting or removing. In some embodiments, the wall switch controller further comprises inputs and outputs and circuitry for switchably controlling household line current power to a household electrical fixture. In some embodiments, the wall switch controller further comprises an occupancy sensor, a temperature sensor, or a processor.

Smoke detectors and smoke alarms are provided which have one or more light shields configured to block or minimize the transmission of ambient light to their light receivers. Light shield configurations for facilitating such functionality are provided as well. The shield/s include a material which attenuates a majority amount of light within a particular range of light that a light source of the smoke detector may be configured to only emit and/or the range of light the light receiver may configured to only convert to photocurrent. In some cases, the shield/s surrounds the light source and/or the light receiver arranged external to an interior chamber of the smoke detector. In some cases, the shield/s may at least partially span a connection side of an external housing of the smoke detector. Alternatively, the shield may be arranged in a space between the interior chamber and the connection side of the housing.

Smoke detectors and smoke alarms are provided which have one or more light shields configured to block or minimize the transmission of ambient light to their light receivers. Light shield configurations for facilitating such functionality are provided as well. The shield/s include a material which attenuates a majority amount of light within a particular range of light that a light source of the smoke detector may be configured to only emit and/or the range of light the light receiver may configured to only convert to photocurrent. In some cases, the shield/s surrounds the light source and/or the light receiver arranged external to an interior chamber of the smoke detector. In some cases, the shield/s may at least partially span a connection side of an external housing of the smoke detector. Alternatively, the shield may be arranged in a space between the interior chamber and the connection side of the housing.

A smoke alarm has a housing with a heating device for heating walls of the housing to a temperature above the dew point. The heating device has at least one heating light emitting diode (LED). The heating LED has an opening angle for the emission of light, which opening angle leads to an irradiated area of the housing.