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.

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 system and method for detecting smoke using a photoelectric sensor is disclosed herein. The smoke detector can comprise a photoelectric smoke detection system, a smoke detector memory, and a microprocessor. The photoelectric smoke detection system can comprise a low-frequency light source, a high-frequency light source, and a light sensor. The smoke detector memory can comprise a smoke detector application, a plurality of low-frequency smoke signatures, and a plurality of high-frequency smoke signatures. Each of the low-frequency smoke signatures can relate to how a low-frequency light interacts with one of a plurality of particulates. Each of the high-frequency smoke signatures can relate to how a high-frequency light interacts with one of the plurality of particulates. Each of the particulates can be indicative or non-indicative of a fire.

A generator includes an engine, an air-fuel mixing device coupled to the engine, where the air-fuel mixing device is configured 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 configured 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 configured to detect CO concentration near the generator.

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.

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.

An improved smoke detection enclosure for recessed installment is disclosed herein. A smoke detector for recessed installment can comprise a housing, a printed circuit board (PCB), a bottom cover, and a plurality of clips. The housing can be capable of being installed within a surface. The printed circuit board (PCB) can comprise one or more smoke detection systems. The PCB can be mounted within the housing such that upon installation into a surface, the PCB is approximately at the surface. The bottom cover can extend beyond edges of the housing to form a surface lip. The surface lip can be capable of interacting with a first side of the surface. The bottom cover can comprise one or more air vents, each of the one or more air vents can be placed directly underneath of each of the one or more smoke detection systems.

An improved system for effecting smoke detector data using an emergency personnel router is disclosed herein. A smoke detector can comprise a smoke detection system, a smoke detection memory, and a microprocessor. The smoke detector memory can comprise a smoke detector application, and a connection protocol for an emergency personnel router. The microprocessor can, according to instructions from the smoke detector application receive smoke alarm data, and detect a wireless emergency personnel router. Moreover the microprocessor can, according to instructions from the smoke detector application connect to the wireless emergency personnel router using the connection protocol, and send the smoke alarm data via the emergency personnel router.

A system and method for effecting smoke detector data transmission from a smoke detector is described herein. The smoke detector can comprise a smoke detection system, a smoke detector memory, and a microprocessor. The smoke detector memory can comprise a smoke detector application. The microprocessor can, according to instructions from the smoke detector application operate as a node in a mesh network of a local area network by receiving network data and sending the network data across the local area network. Moreover, according to the instructions from the smoke detector application, the microprocessor can receive smoke alarm data from the smoke detection system, interrupt sending the network data across the local area network, and resume sending the network data to the other nodes in the mesh network only after the smoke alarm data is completely sent.