Smoke detection system layout design

Patent metadata

Field	Value
Publication number	US-11416643-B2
Application number	US-201916518534-A
Country	US
Kind code	B2
Filing date	Jul 22, 2019
Priority date	Jul 22, 2019
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

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.

First claim

What is claimed is:

1. A method designing a layout for a smoke detection system, the method comprising:
receiving one or more inputs;
modeling transport and dispersion of smoke in an environment based on the one or more inputs, wherein the one or more inputs comprise a ventilation schedule of the environment, wherein the model is based on a computational fluid dynamics (CFD) function;
detecting the smoke using a plurality of probes;
defining a layout of the smoke detectors based on the smoke detectors being able to detect the smoke in the environment within a specified time frame;
validating the defined layout;
re-performing a number of tests using the defined layout to determine an alarm time and a confidence interval for the defined layout, wherein the defined layout of the smoke detectors provide a maximum coverage over the environment while utilizing a minimum number of smoke detectors for detecting smoke; and
providing the confidence interval and a map of the smoke detectors for the layout.

2. The method of claim 1 , further comprising providing an alternative layout of the smoke detectors that adds an additional smoke detector.

3. The method of claim 1 , wherein the environment comprises at least one of a cargo bay, electronics bay, avionics cooling space, or lavatory.

4. The method of claim 1 , wherein the CFD function computes the model based on a smoke detector type and the detection system layout.

5. The method of claim 1 , wherein the CFD function computes the model based at least in part on a geometry and contents of the environment.

6. The method of claim 1 , wherein the CFD function computes the model based at least in part on an ambient temperature, or pressure.

7. The method of claim 1 , wherein the CFD function computes the model based on a smoke output and location of a smoke source.

8. The method of claim 7 , wherein the smoke output is modeled based at least in part on a concentration, velocity, temperature, or particle size distribution of the smoke.

9. A system for designing a layout for a smoke detection system, the system comprising:
a storage medium, the storage medium being coupled to a processor;
the computing engine 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 one or more inputs comprise a ventilation schedule of the environment, wherein the model is based on a computational fluid dynamics (CFD) function;
detect the smoke using a plurality of probes;
define a layout of the smoke detectors based on the smoke detectors being able to detect the smoke in the environment;
validate the defined layout;
re-perform a number of tests using the defined layout to determine an alarm time and a confidence interval for the defined layout, wherein the defined layout of the smoke detectors provide a maximum coverage over the environment while utilizing a minimum number of smoke detectors for detecting smoke; and
provide the confidence interval and a map of the smoke detectors for the layout.

10. The system of claim 9 , wherein the computing engine is configured to provide an alternative layout of the smoke detectors that adds an additional smoke detector.

11. The system of claim 9 , wherein the environment comprises at least one of a cargo bay, electronics bay, avionics cooling space, or lavatory.

12. The system of claim 9 , wherein the computing engine is configured to compute the CFD function of the model based on a smoke detector type and the detection system layout.

13. The system of claim 9 , wherein the computing engine is configured to computes the CFD function of the model based at least in part on a geometry and contents of the environment.

14. The system of claim 9 , wherein the computing engine is configured to compute the CFD function of the model based at least in part on an ambient temperature, or pressure.

15. The system of claim 9 , wherein the computing engine is configured to compute the CFD function of the model based on a smoke output and location of a smoke source.

16. The system of claim 15 , wherein the smoke output is modeled based at least in part on concentration, velocity, temperature, or particle size distribution of the smoke.

Assignees

• Kidde Tech Inc

Inventors

• Daly Amanda J
• Corn May L
• Gottiparthi Kalyana
• Sankaran Vaidyanathan
• Cao Changmin
• Simpson Terry
• Bell Kenneth
• Wang Ke

Classifications

• G08B17/10

  Actuation by presence of smoke or gases {, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means} · CPC title

• G08B29/18

  Prevention or correction of operating errors (G08B29/02, G08B29/12 take precedence) · CPC title

• G06F30/13 Primary

  Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads · CPC title

• G06F2111/10

  Numerical modelling · CPC title

• G06F2113/08

  Fluids · CPC title