A method of calibrating an optical detector includes positioning a calibration block relative to the optical detector and determining a first calibration point of the detector using the calibration block.

Embers created by fires, particularly fires in environments such as grassland, bushland, and forests, can lead to the loss of property and animal and human lives. In addition to the loss of property and lives, fires caused by embers lead to an increase in greenhouse gasses, an increase in the risk associated with an ember attack and/or a fire, and a reduced ability to effectively fight an ember attack and/or a fire. The concept bush/wildfire should be understood to include forest fires, grassland fires, and the like. The present disclosure relates to an ember detector device, a bush/wild fire detection and threat management system, and methods of reducing greenhouse gasses, reducing the risk associated with an ember attack and/or a fire, and enhancing an ability to effectively fight an ember attack and/or a fire.

Embers created by fires, particularly fires in environments such as grassland, bushland, and forests, can lead to the loss of property and animal and human lives. In addition to the loss of property and lives, fires caused by embers lead to an increase in greenhouse gasses, an increase in the risk associated with an ember attack and/or a fire, and a reduced ability to effectively fight an ember attack and/or a fire. The concept bush/wildfire should be understood to include forest fires, grassland fires, and the like. The present disclosure relates to an ember detector device, a bush/wild fire detection and threat management system, and methods of reducing greenhouse gasses, reducing the risk associated with an ember attack and/or a fire, and enhancing an ability to effectively fight an ember attack and/or a fire.

Apparatuses, methods, and computer-readable media for operating a scanning smoke detector are described herein. One apparatus a laser emitter configured to emit a beam of light, a rotational component configured to rotate the emitter such that the beam periodically scans across an area, and a light receiver configured to receive a reflected portion of the beam of light and determine a presence of smoke particles in the area based on the reflected portion. The smoke detection apparatus can be configured to operate at a first power level, decrease the beam to a second power level responsive to a determination that an object in the area is in a path of the beam, and increase the beam to the first power level responsive to a determination that the object is no longer in the path of the beam.

Apparatuses, methods, and computer-readable media for operating a scanning smoke detector are described herein. One apparatus a laser emitter configured to emit a beam of light, a rotational component configured to rotate the emitter such that the beam periodically scans across an area, and a light receiver configured to receive a reflected portion of the beam of light and determine a presence of smoke particles in the area based on the reflected portion. The smoke detection apparatus can be configured to operate at a first power level, decrease the beam to a second power level responsive to a determination that an object in the area is in a path of the beam, and increase the beam to the first power level responsive to a determination that the object is no longer in the path of the beam.

Devices and methods for a sealed electrical connector are described herein. Some embodiments include a spring connecting a first PCB to a second PCB, wherein the spring includes a first end portion in contact with the first PCB, a second end portion in contact with the second PCB, and a middle portion extending between the first end portion and the second end portion, a spacer surrounding the middle portion of the spring, a first seal seated in a first groove of the spacer and in contact with the first PCB, and a second seal seated in a second groove of the spacer and in contact with the second PCB.

Devices and methods for a sealed electrical connector are described herein. Some embodiments include a spring connecting a first PCB to a second PCB, wherein the spring includes a first end portion in contact with the first PCB, a second end portion in contact with the second PCB, and a middle portion extending between the first end portion and the second end portion, a spacer surrounding the middle portion of the spring, a first seal seated in a first groove of the spacer and in contact with the first PCB, and a second seal seated in a second groove of the spacer and in contact with the second PCB.

Problems:

There is a technology using the reflected light which is emitted from the light-emitting element and reflects without being absorbed in the inside of the optical bench, in order to detect whether the light-emitting element and the light-receiving element normally function. In this case, they do not normally function when there is either too little or too much reflected light in the inside of the optical bench. It is therefore an object of the present invention to achieve a suitable amount of reflected light inside the optical bench.

Means for solving the problems:

A light-receiving element 93 and a first light-emitting element 91 are disposed in a position in which the light-receiving element 93 receives forward-scattered light produced when smoke in the smoke detection part 10 is irradiated with first irradiation light emitted from the first light-emitting element 91. A secondary reflecting plate 716 is provided on a side of the first light-emitting element 91 inside the peripheral wall. The secondary reflecting plate 716 is configured to form secondary reflected light when the smoke detection part 10 without smoke is irradiated with the first irradiation light. The secondary reflecting plate 716 receives primary reflected light resulting from reflection of the first irradiation light from the peripheral wall and reflects the primary reflected light, and then allows the formed secondary reflected light to enter the light-receiving element 93.

Problems:

There is a technology using the reflected light which is emitted from the light-emitting element and reflects without being absorbed in the inside of the optical bench, in order to detect whether the light-emitting element and the light-receiving element normally function. In this case, they do not normally function when there is either too little or too much reflected light in the inside of the optical bench. It is therefore an object of the present invention to achieve a suitable amount of reflected light inside the optical bench.

Means for solving the problems:

A light-receiving element 93 and a first light-emitting element 91 are disposed in a position in which the light-receiving element 93 receives forward-scattered light produced when smoke in the smoke detection part 10 is irradiated with first irradiation light emitted from the first light-emitting element 91. A secondary reflecting plate 716 is provided on a side of the first light-emitting element 91 inside the peripheral wall. The secondary reflecting plate 716 is configured to form secondary reflected light when the smoke detection part 10 without smoke is irradiated with the first irradiation light. The secondary reflecting plate 716 receives primary reflected light resulting from reflection of the first irradiation light from the peripheral wall and reflects the primary reflected light, and then allows the formed secondary reflected light to enter the light-receiving element 93.

The present invention discloses a fire-resistant sealing unit installed adjacent to a penetration part penetrating a partition wall inside a building, and filling the penetration part with fire-resistant sealing by heat generated in case of a fire in the building; a fire sensing unit installed adjacent to a fire-resistant sealing unit to detect whether a fire has occurred in a compartment area; and a control server that divides the inside of the building into predetermined conceptualized compartments, manages them as conceptualized compartmental areas, detects fire occurrence information from a fire sensing unit for each compartmental area, and calculates fire vector information.