Kidde Technologies Incorporated

Kenneth Bell

Michael J Birnkrant

Peter R Harris

Jennifer M Alexander

Stefan Coreth

Antonio M Vincitore

Terry Simpson

Ke Wang

May L Corn

Amanda J Daly

Changmin Cao

Vaidyanathan Sankaran

Kalyana Gottiparthi

David L Lincoln

A covered chamberless particulate detector includes a chamberless detector configured to produce a signal when particulate sensing events occurs, one or more optical emitters configured to emit one or more emitting cones of light, one or more optical sensors defining one or more receiving cones and configured to detect occurrence of particulate sensing events, and a protective cover defining an inside region and an outside region. Each of the one or more emitting cones of light is configured to overlap with each of the one or more receiving cones, thereby creating one or more sensing volumes which may be in the inside region, the outside region, or both regions. The protective cover can be transparent, partially transparent, or opaque, and can include apertures. The optical emitters and detectors can use one or more wavelengths, allowing discrimination of various airborne particulates.

Protective cover for chamberless point sensor

Provided are embodiments for a system for designing a layout for a smoke detection system, the system include a storage medium, the storage medium being coupled to a computing engine. The computing engine is configured to receive one or more inputs, model transport and dispersion of smoke in an environment based on the one or more inputs, wherein the model is based on a computational fluid dynamics (CFD) function, and detect the smoke using a plurality of probes. The computing engine is also configured to define a layout of the smoke detectors based on the smoke detectors being able to detect the smoke in the environment, and provide a map of the smoke detectors for the layout. Also provided are embodiments for a method to design a layout for a smoke detection system.

Smoke detection system layout design

Provided are embodiments for a system for validating a smoke detection layout, where the system includes a memory and a processor. The processor is configured to receive one or more inputs, model transport and dispersion of smoke to a smoke detector of an environment based on the one or more inputs, wherein the model is based on computational fluid dynamics (CFD) function, and select a subset of input parameters from the one or more inputs to test. The processor is also configured to test the smoke detection system layout using the selected subset of input parameters, determine an alarm time probability using uncertainty quantifications for the selected subset of input parameters, and provide the alarm time probability and confidence level for the selected subset parameters. Also provided are embodiments for a method to validate a smoke detection system layout.

Smoke detection layout validation

A method of monitoring smoke, fire, and temperature conditions includes transmitting light through a first fiber optic cable, the fiber optic cable terminating at a node disposed to monitor a smoke or fire condition at one or more predetermined areas, transmitting light along a second fiber optic cable, the second fiber optic cable arranged to monitor a temperature condition at one or more predetermined areas, receiving scattered light from the first fiber optic cable and/or the second fiber optic cable at a control system, and analyzing the scattered light to determine at least one of the presence and magnitude of smoke, fire and/or a temperature condition along the fiber harness or at the node.

Fiber optic based smoke and/or overheat detection and monitoring for aircraft

A detection system for measuring the presence of one or more conditions in a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light. The at least one fiber optic cable defines a node arranged to measure the one or more conditions. The node is arranged such that light scattered by an atmosphere adjacent the node is received by at least one core of the fiber optic cable. A control system operably connected to the fiber harness includes a light source for transmitting light to the node and a light sensitive device configured to receive scattered light associated with the node. The control system analyzes more than one signal corresponding to more than one wavelength of the scattered light associated with the node to determine at least one of a presence and magnitude of the one or more conditions at the node.

High sensitivity fiber optic based detection

A system for monitoring smoke and/or temperature of an electronic device includes a fiber harness having at least one fiber optic cable terminating at a node. The node is located to measure one or more conditions at the electronic device, and a control system operably connected to the fiber harness. The control system includes a light source configured to transmit light through the fiber harness, a light sensitive device configured to receive scattered light associated with the node, and a control unit configured to analyze the scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node of one or more conditions at the electronic device, wherein the control unit is further configured to transmit a signal in response to the one or more conditions, wherein the one or more conditions are one or more of smoke, fire, and temperature.

Fiber optic based monitoring of temperature and/or smoke conditions at electronic components

Overheat and fire detection for aircraft systems includes at least one temperature sensing fiber optic cable. The at least one fiber optic cable is comprised of a plurality of modular fiber optic cables. The plurality of modular fiber optic cables includes at least one sensing and one non-sensing section. Portions of the at least one temperature sensing fiber optic cable can be removed and replace with separate modular fiber optic cables.

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Epsom, United Kingdom

Kenneth Bell