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.

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.

An improved system and method for detecting smoke using an ionization sensor is disclosed herein. A smoke detector can comprise the ionization sensor, a smoke detector memory, and a microprocessor. The ionization sensor can comprise an ionization chamber. The smoke detector memory can comprise a smoke detector application, and a plurality of ionization smoke signatures. The plurality of ionization smoke signatures, wherein each of the ionization smoke signatures relates to how the ionization chamber interacts with one of a plurality of particulates. Each of the plurality of particulates can be indicative or non-indicative of a fire. The microprocessor can, according to instructions from the smoke detector application receive current data from the ionization sensor, and compare the current data with the plurality of ionization smoke signatures to determine if the current data matches any of the plurality of ionization smoke signatures.

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 generator includes an engine, an air-fuel mixing device coupled to the engine, where the air-fuel mixing device is structured to receive air from an air intake and combine the air with fuel to create an air/fuel mixture, an exhaust outlet positioned on a first side of the generator and coupled to the engine, wherein the exhaust outlet is structured to emit exhaust gases from the engine, and a carbon monoxide (CO) sensor positioned on a second side of the generator opposite the exhaust outlet, where the CO sensor is structured to detect CO concentration near the generator.

An aspirating smoke sensing device, method, and apparatus for fire detection are provided, and the device is provided with a charger (2), a charge collector (3), a controller (4), an air intake structure (1), and a negative pressure source for air path detection (9). The air intake structure (1) is communicated with an input port of the charger (2), an output port of the charger (2) is communicated with the charge collector (3), an output port of the charge collector (3) is communicated with the negative pressure source for air path detection (9), and the controller (4) is electrically connected to the charge collector (3).

This application is directed to a method of home monitoring and control implemented by a doorbell installed at a door of a home, an application executable by a monitoring device, and a remote server. The doorbell has a button that, upon being touched, depressed or activated, wirelessly causes an audio speaker of an electronic device to sound an audible notification and/or a message to be sent to a monitoring device associated with an occupant of the home to indicate presence of a person at the door. The doorbell also has a camera that captures video data within a field of view. The remote server receives the video data from the doorbell and relays them to the monitoring device. The application receives and displays at least a portion of the video data captured by the camera.

This application is directed to a home monitoring and control system including a doorbell installed at a door of a home, an application executable by a monitoring device, and a remote server. The doorbell has a button configured to, upon being touched, depressed or activated, wirelessly cause an audio speaker of an electronic device to sound an audible notification or a message to be sent to the monitoring device 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. The remote server is configured to receive from the doorbell the video data and the message, and relay them to the monitoring device. The application is configured to receive and display at least a portion of the video data captured by the camera of the doorbell.

Disclosed are a fire detection apparatus and an operating method thereof. The present invention relates to a fire detection apparatus and an operating method thereof, which can detect a fire which occurs in an indoor space by using multiple sensors such as a temperature sensor and a smoke sensor.